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authorFelix Fietkau <nbd@openwrt.org>2016-01-30 20:15:11 +0000
committerFelix Fietkau <nbd@openwrt.org>2016-01-30 20:15:11 +0000
commited95e47f072caaeffdc48a78718cfc08fe89f690 (patch)
treeaae48b7885b6b76d105627d533ef4dec7b769705 /toolchain/musl/patches/000-update-to-git-2016-01-30.patch
parentb046040bd6f323b214dbeee9767db7644cf3a6bd (diff)
downloadupstream-ed95e47f072caaeffdc48a78718cfc08fe89f690.tar.gz
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musl: update to the latest git version, fixes TLS issues
Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48574
Diffstat (limited to 'toolchain/musl/patches/000-update-to-git-2016-01-30.patch')
-rw-r--r--toolchain/musl/patches/000-update-to-git-2016-01-30.patch17861
1 files changed, 17861 insertions, 0 deletions
diff --git a/toolchain/musl/patches/000-update-to-git-2016-01-30.patch b/toolchain/musl/patches/000-update-to-git-2016-01-30.patch
new file mode 100644
index 0000000000..639a500756
--- /dev/null
+++ b/toolchain/musl/patches/000-update-to-git-2016-01-30.patch
@@ -0,0 +1,17861 @@
+--- a/.gitignore
++++ b/.gitignore
+@@ -5,9 +5,6 @@
+ *.so.1
+ arch/*/bits/alltypes.h
+ config.mak
+-include/bits
+-tools/musl-gcc
+-tools/musl-clang
+-tools/ld.musl-clang
+ lib/musl-gcc.specs
+ src/internal/version.h
++/obj/
+--- a/Makefile
++++ b/Makefile
+@@ -8,6 +8,7 @@
+ # Do not make changes here.
+ #
+
++srcdir = .
+ exec_prefix = /usr/local
+ bindir = $(exec_prefix)/bin
+
+@@ -16,31 +17,42 @@ includedir = $(prefix)/include
+ libdir = $(prefix)/lib
+ syslibdir = /lib
+
+-SRCS = $(sort $(wildcard src/*/*.c arch/$(ARCH)/src/*.c))
+-OBJS = $(SRCS:.c=.o)
++BASE_SRCS = $(sort $(wildcard $(srcdir)/src/*/*.c))
++BASE_OBJS = $(patsubst $(srcdir)/%,%.o,$(basename $(BASE_SRCS)))
++ARCH_SRCS = $(wildcard $(srcdir)/src/*/$(ARCH)/*.[csS])
++ARCH_OBJS = $(patsubst $(srcdir)/%,%.o,$(basename $(ARCH_SRCS)))
++REPLACED_OBJS = $(sort $(subst /$(ARCH)/,/,$(ARCH_OBJS)))
++LDSO_SRCS = $(sort $(wildcard $(srcdir)/ldso/*.c))
++LDSO_OBJS = $(patsubst $(srcdir)/%,obj/%.lo,$(basename $(LDSO_SRCS)))
++OBJS = $(addprefix obj/, $(filter-out $(REPLACED_OBJS), $(sort $(BASE_OBJS) $(ARCH_OBJS))))
++AOBJS = $(OBJS)
+ LOBJS = $(OBJS:.o=.lo)
+-GENH = include/bits/alltypes.h
+-GENH_INT = src/internal/version.h
+-IMPH = src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/libc.h
++GENH = obj/include/bits/alltypes.h
++GENH_INT = obj/src/internal/version.h
++IMPH = $(addprefix $(srcdir)/, src/internal/stdio_impl.h src/internal/pthread_impl.h src/internal/libc.h)
+
+-LDFLAGS =
++LDFLAGS =
++LDFLAGS_AUTO =
+ LIBCC = -lgcc
+ CPPFLAGS =
+-CFLAGS = -Os -pipe
++CFLAGS =
++CFLAGS_AUTO = -Os -pipe
+ CFLAGS_C99FSE = -std=c99 -ffreestanding -nostdinc
+
+ CFLAGS_ALL = $(CFLAGS_C99FSE)
+-CFLAGS_ALL += -D_XOPEN_SOURCE=700 -I./arch/$(ARCH) -I./src/internal -I./include
+-CFLAGS_ALL += $(CPPFLAGS) $(CFLAGS)
+-CFLAGS_ALL_STATIC = $(CFLAGS_ALL)
+-CFLAGS_ALL_SHARED = $(CFLAGS_ALL) -fPIC -DSHARED
++CFLAGS_ALL += -D_XOPEN_SOURCE=700 -I$(srcdir)/arch/$(ARCH) -I$(srcdir)/arch/generic -Iobj/src/internal -I$(srcdir)/src/internal -Iobj/include -I$(srcdir)/include
++CFLAGS_ALL += $(CPPFLAGS) $(CFLAGS_AUTO) $(CFLAGS)
++
++LDFLAGS_ALL = $(LDFLAGS_AUTO) $(LDFLAGS)
+
+ AR = $(CROSS_COMPILE)ar
+ RANLIB = $(CROSS_COMPILE)ranlib
+-INSTALL = ./tools/install.sh
++INSTALL = $(srcdir)/tools/install.sh
+
+-ARCH_INCLUDES = $(wildcard arch/$(ARCH)/bits/*.h)
+-ALL_INCLUDES = $(sort $(wildcard include/*.h include/*/*.h) $(GENH) $(ARCH_INCLUDES:arch/$(ARCH)/%=include/%))
++ARCH_INCLUDES = $(wildcard $(srcdir)/arch/$(ARCH)/bits/*.h)
++GENERIC_INCLUDES = $(wildcard $(srcdir)/arch/generic/bits/*.h)
++INCLUDES = $(wildcard $(srcdir)/include/*.h $(srcdir)/include/*/*.h)
++ALL_INCLUDES = $(sort $(INCLUDES:$(srcdir)/%=%) $(GENH:obj/%=%) $(ARCH_INCLUDES:$(srcdir)/arch/$(ARCH)/%=include/%) $(GENERIC_INCLUDES:$(srcdir)/arch/generic/%=include/%))
+
+ EMPTY_LIB_NAMES = m rt pthread crypt util xnet resolv dl
+ EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a)
+@@ -49,7 +61,7 @@ STATIC_LIBS = lib/libc.a
+ SHARED_LIBS = lib/libc.so
+ TOOL_LIBS = lib/musl-gcc.specs
+ ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS) $(EMPTY_LIBS) $(TOOL_LIBS)
+-ALL_TOOLS = tools/musl-gcc
++ALL_TOOLS = obj/musl-gcc
+
+ WRAPCC_GCC = gcc
+ WRAPCC_CLANG = clang
+@@ -58,122 +70,128 @@ LDSO_PATHNAME = $(syslibdir)/ld-musl-$(A
+
+ -include config.mak
+
++ifeq ($(ARCH),)
++$(error Please set ARCH in config.mak before running make.)
++endif
++
+ all: $(ALL_LIBS) $(ALL_TOOLS)
+
++OBJ_DIRS = $(sort $(patsubst %/,%,$(dir $(ALL_LIBS) $(ALL_TOOLS) $(OBJS) $(LDSO_OBJS) $(GENH) $(GENH_INT))) $(addprefix obj/, crt crt/$(ARCH) include))
++
++$(ALL_LIBS) $(ALL_TOOLS) $(CRT_LIBS:lib/%=obj/crt/%) $(OBJS) $(LOBJS) $(GENH) $(GENH_INT): | $(OBJ_DIRS)
++
++$(OBJ_DIRS):
++ mkdir -p $@
++
+ install: install-libs install-headers install-tools
+
+ clean:
+- rm -f crt/*.o
+- rm -f $(OBJS)
+- rm -f $(LOBJS)
+- rm -f $(ALL_LIBS) lib/*.[ao] lib/*.so
+- rm -f $(ALL_TOOLS)
+- rm -f $(GENH) $(GENH_INT)
+- rm -f include/bits
++ rm -rf obj lib
+
+ distclean: clean
+ rm -f config.mak
+
+-include/bits:
+- @test "$(ARCH)" || { echo "Please set ARCH in config.mak before running make." ; exit 1 ; }
+- ln -sf ../arch/$(ARCH)/bits $@
++obj/include/bits/alltypes.h: $(srcdir)/arch/$(ARCH)/bits/alltypes.h.in $(srcdir)/include/alltypes.h.in $(srcdir)/tools/mkalltypes.sed
++ sed -f $(srcdir)/tools/mkalltypes.sed $(srcdir)/arch/$(ARCH)/bits/alltypes.h.in $(srcdir)/include/alltypes.h.in > $@
+
+-include/bits/alltypes.h.in: include/bits
++obj/src/internal/version.h: $(wildcard $(srcdir)/VERSION $(srcdir)/.git)
++ printf '#define VERSION "%s"\n' "$$(cd $(srcdir); sh tools/version.sh)" > $@
+
+-include/bits/alltypes.h: include/bits/alltypes.h.in include/alltypes.h.in tools/mkalltypes.sed
+- sed -f tools/mkalltypes.sed include/bits/alltypes.h.in include/alltypes.h.in > $@
++obj/src/internal/version.o obj/src/internal/version.lo: obj/src/internal/version.h
+
+-src/internal/version.h: $(wildcard VERSION .git)
+- printf '#define VERSION "%s"\n' "$$(sh tools/version.sh)" > $@
++obj/crt/rcrt1.o obj/ldso/dlstart.lo obj/ldso/dynlink.lo: $(srcdir)/src/internal/dynlink.h $(srcdir)/arch/$(ARCH)/reloc.h
+
+-src/internal/version.lo: src/internal/version.h
++obj/crt/crt1.o obj/crt/scrt1.o obj/crt/rcrt1.o obj/ldso/dlstart.lo: $(srcdir)/arch/$(ARCH)/crt_arch.h
+
+-crt/rcrt1.o src/ldso/dlstart.lo src/ldso/dynlink.lo: src/internal/dynlink.h arch/$(ARCH)/reloc.h
++obj/crt/rcrt1.o: $(srcdir)/ldso/dlstart.c
+
+-crt/crt1.o crt/Scrt1.o crt/rcrt1.o src/ldso/dlstart.lo: $(wildcard arch/$(ARCH)/crt_arch.h)
++obj/crt/Scrt1.o obj/crt/rcrt1.o: CFLAGS_ALL += -fPIC
+
+-crt/rcrt1.o: src/ldso/dlstart.c
++obj/crt/$(ARCH)/crti.o: $(srcdir)/crt/$(ARCH)/crti.s
+
+-crt/Scrt1.o crt/rcrt1.o: CFLAGS += -fPIC
++obj/crt/$(ARCH)/crtn.o: $(srcdir)/crt/$(ARCH)/crtn.s
+
+-OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=src/%))
+-$(OPTIMIZE_SRCS:%.c=%.o) $(OPTIMIZE_SRCS:%.c=%.lo): CFLAGS += -O3
++OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=$(srcdir)/src/%))
++$(OPTIMIZE_SRCS:$(srcdir)/%.c=obj/%.o) $(OPTIMIZE_SRCS:$(srcdir)/%.c=obj/%.lo): CFLAGS += -O3
+
+ MEMOPS_SRCS = src/string/memcpy.c src/string/memmove.c src/string/memcmp.c src/string/memset.c
+-$(MEMOPS_SRCS:%.c=%.o) $(MEMOPS_SRCS:%.c=%.lo): CFLAGS += $(CFLAGS_MEMOPS)
++$(MEMOPS_SRCS:%.c=obj/%.o) $(MEMOPS_SRCS:%.c=obj/%.lo): CFLAGS_ALL += $(CFLAGS_MEMOPS)
+
+ NOSSP_SRCS = $(wildcard crt/*.c) \
+ src/env/__libc_start_main.c src/env/__init_tls.c \
+- src/thread/__set_thread_area.c src/env/__stack_chk_fail.c \
+- src/string/memset.c src/string/memcpy.c \
+- src/ldso/dlstart.c src/ldso/dynlink.c
+-$(NOSSP_SRCS:%.c=%.o) $(NOSSP_SRCS:%.c=%.lo): CFLAGS += $(CFLAGS_NOSSP)
++ src/env/__stack_chk_fail.c \
++ src/thread/__set_thread_area.c src/thread/$(ARCH)/__set_thread_area.c \
++ src/string/memset.c src/string/$(ARCH)/memset.c \
++ src/string/memcpy.c src/string/$(ARCH)/memcpy.c \
++ ldso/dlstart.c ldso/dynlink.c
++$(NOSSP_SRCS:%.c=obj/%.o) $(NOSSP_SRCS:%.c=obj/%.lo): CFLAGS_ALL += $(CFLAGS_NOSSP)
+
+-$(CRT_LIBS:lib/%=crt/%): CFLAGS += -DCRT
++$(CRT_LIBS:lib/%=obj/crt/%): CFLAGS_ALL += -DCRT
+
+-# This incantation ensures that changes to any subarch asm files will
+-# force the corresponding object file to be rebuilt, even if the implicit
+-# rule below goes indirectly through a .sub file.
+-define mkasmdep
+-$(dir $(patsubst %/,%,$(dir $(1))))$(notdir $(1:.s=.o)): $(1)
+-endef
+-$(foreach s,$(wildcard src/*/$(ARCH)*/*.s),$(eval $(call mkasmdep,$(s))))
++$(LOBJS) $(LDSO_OBJS): CFLAGS_ALL += -fPIC
++
++CC_CMD = $(CC) $(CFLAGS_ALL) -c -o $@ $<
+
+ # Choose invocation of assembler to be used
+-# $(1) is input file, $(2) is output file, $(3) is assembler flags
+ ifeq ($(ADD_CFI),yes)
+- AS_CMD = LC_ALL=C awk -f tools/add-cfi.common.awk -f tools/add-cfi.$(ARCH).awk $< | $(CC) -x assembler -c -o $@ -
++ AS_CMD = LC_ALL=C awk -f $(srcdir)/tools/add-cfi.common.awk -f $(srcdir)/tools/add-cfi.$(ARCH).awk $< | $(CC) $(CFLAGS_ALL) -x assembler -c -o $@ -
+ else
+- AS_CMD = $(CC) -c -o $@ $<
++ AS_CMD = $(CC_CMD)
+ endif
+
+-%.o: $(ARCH)$(ASMSUBARCH)/%.sub
+- $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $(dir $<)$(shell cat $<)
++obj/%.o: $(srcdir)/%.s
++ $(AS_CMD)
+
+-%.o: $(ARCH)/%.s
+- $(AS_CMD) $(CFLAGS_ALL_STATIC)
++obj/%.o: $(srcdir)/%.S
++ $(CC_CMD)
+
+-%.o: %.c $(GENH) $(IMPH)
+- $(CC) $(CFLAGS_ALL_STATIC) -c -o $@ $<
++obj/%.o: $(srcdir)/%.c $(GENH) $(IMPH)
++ $(CC_CMD)
+
+-%.lo: $(ARCH)$(ASMSUBARCH)/%.sub
+- $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $(dir $<)$(shell cat $<)
++obj/%.lo: $(srcdir)/%.s
++ $(AS_CMD)
+
+-%.lo: $(ARCH)/%.s
+- $(AS_CMD) $(CFLAGS_ALL_SHARED)
++obj/%.lo: $(srcdir)/%.S
++ $(CC_CMD)
+
+-%.lo: %.c $(GENH) $(IMPH)
+- $(CC) $(CFLAGS_ALL_SHARED) -c -o $@ $<
++obj/%.lo: $(srcdir)/%.c $(GENH) $(IMPH)
++ $(CC_CMD)
+
+-lib/libc.so: $(LOBJS)
+- $(CC) $(CFLAGS_ALL_SHARED) $(LDFLAGS) -nostdlib -shared \
++lib/libc.so: $(LOBJS) $(LDSO_OBJS)
++ $(CC) $(CFLAGS_ALL) $(LDFLAGS_ALL) -nostdlib -shared \
+ -Wl,-e,_dlstart -Wl,-Bsymbolic-functions \
+- -o $@ $(LOBJS) $(LIBCC)
++ -o $@ $(LOBJS) $(LDSO_OBJS) $(LIBCC)
+
+-lib/libc.a: $(OBJS)
++lib/libc.a: $(AOBJS)
+ rm -f $@
+- $(AR) rc $@ $(OBJS)
++ $(AR) rc $@ $(AOBJS)
+ $(RANLIB) $@
+
+ $(EMPTY_LIBS):
+ rm -f $@
+ $(AR) rc $@
+
+-lib/%.o: crt/%.o
++lib/%.o: obj/crt/%.o
+ cp $< $@
+
+-lib/musl-gcc.specs: tools/musl-gcc.specs.sh config.mak
++lib/crti.o: obj/crt/$(ARCH)/crti.o
++ cp $< $@
++
++lib/crtn.o: obj/crt/$(ARCH)/crtn.o
++ cp $< $@
++
++lib/musl-gcc.specs: $(srcdir)/tools/musl-gcc.specs.sh config.mak
+ sh $< "$(includedir)" "$(libdir)" "$(LDSO_PATHNAME)" > $@
+
+-tools/musl-gcc: config.mak
++obj/musl-gcc: config.mak
+ printf '#!/bin/sh\nexec "$${REALGCC:-$(WRAPCC_GCC)}" "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@
+ chmod +x $@
+
+-tools/%-clang: tools/%-clang.in config.mak
++obj/%-clang: $(srcdir)/tools/%-clang.in config.mak
+ sed -e 's!@CC@!$(WRAPCC_CLANG)!g' -e 's!@PREFIX@!$(prefix)!g' -e 's!@INCDIR@!$(includedir)!g' -e 's!@LIBDIR@!$(libdir)!g' -e 's!@LDSO@!$(LDSO_PATHNAME)!g' $< > $@
+ chmod +x $@
+
+-$(DESTDIR)$(bindir)/%: tools/%
++$(DESTDIR)$(bindir)/%: obj/%
+ $(INSTALL) -D $< $@
+
+ $(DESTDIR)$(libdir)/%.so: lib/%.so
+@@ -182,10 +200,16 @@ $(DESTDIR)$(libdir)/%.so: lib/%.so
+ $(DESTDIR)$(libdir)/%: lib/%
+ $(INSTALL) -D -m 644 $< $@
+
+-$(DESTDIR)$(includedir)/bits/%: arch/$(ARCH)/bits/%
++$(DESTDIR)$(includedir)/bits/%: $(srcdir)/arch/$(ARCH)/bits/%
+ $(INSTALL) -D -m 644 $< $@
+
+-$(DESTDIR)$(includedir)/%: include/%
++$(DESTDIR)$(includedir)/bits/%: $(srcdir)/arch/generic/bits/%
++ $(INSTALL) -D -m 644 $< $@
++
++$(DESTDIR)$(includedir)/bits/%: obj/include/bits/%
++ $(INSTALL) -D -m 644 $< $@
++
++$(DESTDIR)$(includedir)/%: $(srcdir)/include/%
+ $(INSTALL) -D -m 644 $< $@
+
+ $(DESTDIR)$(LDSO_PATHNAME): $(DESTDIR)$(libdir)/libc.so
+@@ -195,12 +219,12 @@ install-libs: $(ALL_LIBS:lib/%=$(DESTDIR
+
+ install-headers: $(ALL_INCLUDES:include/%=$(DESTDIR)$(includedir)/%)
+
+-install-tools: $(ALL_TOOLS:tools/%=$(DESTDIR)$(bindir)/%)
++install-tools: $(ALL_TOOLS:obj/%=$(DESTDIR)$(bindir)/%)
+
+ musl-git-%.tar.gz: .git
+- git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ $(patsubst musl-git-%.tar.gz,%,$@)
++ git --git-dir=$(srcdir)/.git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ $(patsubst musl-git-%.tar.gz,%,$@)
+
+ musl-%.tar.gz: .git
+- git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ v$(patsubst musl-%.tar.gz,%,$@)
++ git --git-dir=$(srcdir)/.git archive --format=tar.gz --prefix=$(patsubst %.tar.gz,%,$@)/ -o $@ v$(patsubst musl-%.tar.gz,%,$@)
+
+ .PHONY: all clean install install-libs install-headers install-tools
+--- a/arch/aarch64/atomic.h
++++ /dev/null
+@@ -1,206 +0,0 @@
+-#ifndef _INTERNAL_ATOMIC_H
+-#define _INTERNAL_ATOMIC_H
+-
+-#include <stdint.h>
+-
+-static inline int a_ctz_64(uint64_t x)
+-{
+- __asm__(
+- " rbit %0, %1\n"
+- " clz %0, %0\n"
+- : "=r"(x) : "r"(x));
+- return x;
+-}
+-
+-static inline int a_ctz_l(unsigned long x)
+-{
+- return a_ctz_64(x);
+-}
+-
+-static inline void a_barrier()
+-{
+- __asm__ __volatile__("dmb ish");
+-}
+-
+-static inline void *a_cas_p(volatile void *p, void *t, void *s)
+-{
+- void *old;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldxr %0,%3\n"
+- " cmp %0,%1\n"
+- " b.ne 1f\n"
+- " stxr %w0,%2,%3\n"
+- " cbnz %w0,1b\n"
+- " mov %0,%1\n"
+- "1: dmb ish\n"
+- : "=&r"(old)
+- : "r"(t), "r"(s), "Q"(*(long*)p)
+- : "memory", "cc");
+- return old;
+-}
+-
+-static inline int a_cas(volatile int *p, int t, int s)
+-{
+- int old;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldxr %w0,%3\n"
+- " cmp %w0,%w1\n"
+- " b.ne 1f\n"
+- " stxr %w0,%w2,%3\n"
+- " cbnz %w0,1b\n"
+- " mov %w0,%w1\n"
+- "1: dmb ish\n"
+- : "=&r"(old)
+- : "r"(t), "r"(s), "Q"(*p)
+- : "memory", "cc");
+- return old;
+-}
+-
+-static inline int a_swap(volatile int *x, int v)
+-{
+- int old, tmp;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldxr %w0,%3\n"
+- " stxr %w1,%w2,%3\n"
+- " cbnz %w1,1b\n"
+- " dmb ish\n"
+- : "=&r"(old), "=&r"(tmp)
+- : "r"(v), "Q"(*x)
+- : "memory", "cc" );
+- return old;
+-}
+-
+-static inline int a_fetch_add(volatile int *x, int v)
+-{
+- int old, tmp;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldxr %w0,%3\n"
+- " add %w0,%w0,%w2\n"
+- " stxr %w1,%w0,%3\n"
+- " cbnz %w1,1b\n"
+- " dmb ish\n"
+- : "=&r"(old), "=&r"(tmp)
+- : "r"(v), "Q"(*x)
+- : "memory", "cc" );
+- return old-v;
+-}
+-
+-static inline void a_inc(volatile int *x)
+-{
+- int tmp, tmp2;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldxr %w0,%2\n"
+- " add %w0,%w0,#1\n"
+- " stxr %w1,%w0,%2\n"
+- " cbnz %w1,1b\n"
+- " dmb ish\n"
+- : "=&r"(tmp), "=&r"(tmp2)
+- : "Q"(*x)
+- : "memory", "cc" );
+-}
+-
+-static inline void a_dec(volatile int *x)
+-{
+- int tmp, tmp2;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldxr %w0,%2\n"
+- " sub %w0,%w0,#1\n"
+- " stxr %w1,%w0,%2\n"
+- " cbnz %w1,1b\n"
+- " dmb ish\n"
+- : "=&r"(tmp), "=&r"(tmp2)
+- : "Q"(*x)
+- : "memory", "cc" );
+-}
+-
+-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+-{
+- int tmp, tmp2;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldxr %0,%3\n"
+- " and %0,%0,%2\n"
+- " stxr %w1,%0,%3\n"
+- " cbnz %w1,1b\n"
+- " dmb ish\n"
+- : "=&r"(tmp), "=&r"(tmp2)
+- : "r"(v), "Q"(*p)
+- : "memory", "cc" );
+-}
+-
+-static inline void a_and(volatile int *p, int v)
+-{
+- int tmp, tmp2;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldxr %w0,%3\n"
+- " and %w0,%w0,%w2\n"
+- " stxr %w1,%w0,%3\n"
+- " cbnz %w1,1b\n"
+- " dmb ish\n"
+- : "=&r"(tmp), "=&r"(tmp2)
+- : "r"(v), "Q"(*p)
+- : "memory", "cc" );
+-}
+-
+-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+-{
+- int tmp, tmp2;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldxr %0,%3\n"
+- " orr %0,%0,%2\n"
+- " stxr %w1,%0,%3\n"
+- " cbnz %w1,1b\n"
+- " dmb ish\n"
+- : "=&r"(tmp), "=&r"(tmp2)
+- : "r"(v), "Q"(*p)
+- : "memory", "cc" );
+-}
+-
+-static inline void a_or_l(volatile void *p, long v)
+-{
+- return a_or_64(p, v);
+-}
+-
+-static inline void a_or(volatile int *p, int v)
+-{
+- int tmp, tmp2;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldxr %w0,%3\n"
+- " orr %w0,%w0,%w2\n"
+- " stxr %w1,%w0,%3\n"
+- " cbnz %w1,1b\n"
+- " dmb ish\n"
+- : "=&r"(tmp), "=&r"(tmp2)
+- : "r"(v), "Q"(*p)
+- : "memory", "cc" );
+-}
+-
+-static inline void a_store(volatile int *p, int x)
+-{
+- __asm__ __volatile__(
+- " dmb ish\n"
+- " str %w1,%0\n"
+- " dmb ish\n"
+- : "=m"(*p)
+- : "r"(x)
+- : "memory", "cc" );
+-}
+-
+-#define a_spin a_barrier
+-
+-static inline void a_crash()
+-{
+- *(volatile char *)0=0;
+-}
+-
+-
+-#endif
+--- /dev/null
++++ b/arch/aarch64/atomic_arch.h
+@@ -0,0 +1,73 @@
++#define a_ll a_ll
++static inline int a_ll(volatile int *p)
++{
++ int v;
++ __asm__ __volatile__ ("ldaxr %w0,%1" : "=r"(v) : "Q"(*p));
++ return v;
++}
++
++#define a_sc a_sc
++static inline int a_sc(volatile int *p, int v)
++{
++ int r;
++ __asm__ __volatile__ ("stlxr %w0,%w1,%2" : "=&r"(r) : "r"(v), "Q"(*p) : "memory");
++ return !r;
++}
++
++#define a_barrier a_barrier
++static inline void a_barrier()
++{
++ __asm__ __volatile__ ("dmb ish" : : : "memory");
++}
++
++#define a_cas a_cas
++static inline int a_cas(volatile int *p, int t, int s)
++{
++ int old;
++ do {
++ old = a_ll(p);
++ if (old != t) {
++ a_barrier();
++ break;
++ }
++ } while (!a_sc(p, s));
++ return old;
++}
++
++static inline void *a_ll_p(volatile void *p)
++{
++ void *v;
++ __asm__ __volatile__ ("ldaxr %0, %1" : "=r"(v) : "Q"(*(void *volatile *)p));
++ return v;
++}
++
++static inline int a_sc_p(volatile int *p, void *v)
++{
++ int r;
++ __asm__ __volatile__ ("stlxr %w0,%1,%2" : "=&r"(r) : "r"(v), "Q"(*(void *volatile *)p) : "memory");
++ return !r;
++}
++
++#define a_cas_p a_cas_p
++static inline void *a_cas_p(volatile void *p, void *t, void *s)
++{
++ void *old;
++ do {
++ old = a_ll_p(p);
++ if (old != t) {
++ a_barrier();
++ break;
++ }
++ } while (!a_sc_p(p, s));
++ return old;
++}
++
++#define a_ctz_64 a_ctz_64
++static inline int a_ctz_64(uint64_t x)
++{
++ __asm__(
++ " rbit %0, %1\n"
++ " clz %0, %0\n"
++ : "=r"(x) : "r"(x));
++ return x;
++}
+--- a/arch/aarch64/bits/errno.h
++++ /dev/null
+@@ -1,134 +0,0 @@
+-#define EPERM 1
+-#define ENOENT 2
+-#define ESRCH 3
+-#define EINTR 4
+-#define EIO 5
+-#define ENXIO 6
+-#define E2BIG 7
+-#define ENOEXEC 8
+-#define EBADF 9
+-#define ECHILD 10
+-#define EAGAIN 11
+-#define ENOMEM 12
+-#define EACCES 13
+-#define EFAULT 14
+-#define ENOTBLK 15
+-#define EBUSY 16
+-#define EEXIST 17
+-#define EXDEV 18
+-#define ENODEV 19
+-#define ENOTDIR 20
+-#define EISDIR 21
+-#define EINVAL 22
+-#define ENFILE 23
+-#define EMFILE 24
+-#define ENOTTY 25
+-#define ETXTBSY 26
+-#define EFBIG 27
+-#define ENOSPC 28
+-#define ESPIPE 29
+-#define EROFS 30
+-#define EMLINK 31
+-#define EPIPE 32
+-#define EDOM 33
+-#define ERANGE 34
+-#define EDEADLK 35
+-#define ENAMETOOLONG 36
+-#define ENOLCK 37
+-#define ENOSYS 38
+-#define ENOTEMPTY 39
+-#define ELOOP 40
+-#define EWOULDBLOCK EAGAIN
+-#define ENOMSG 42
+-#define EIDRM 43
+-#define ECHRNG 44
+-#define EL2NSYNC 45
+-#define EL3HLT 46
+-#define EL3RST 47
+-#define ELNRNG 48
+-#define EUNATCH 49
+-#define ENOCSI 50
+-#define EL2HLT 51
+-#define EBADE 52
+-#define EBADR 53
+-#define EXFULL 54
+-#define ENOANO 55
+-#define EBADRQC 56
+-#define EBADSLT 57
+-#define EDEADLOCK EDEADLK
+-#define EBFONT 59
+-#define ENOSTR 60
+-#define ENODATA 61
+-#define ETIME 62
+-#define ENOSR 63
+-#define ENONET 64
+-#define ENOPKG 65
+-#define EREMOTE 66
+-#define ENOLINK 67
+-#define EADV 68
+-#define ESRMNT 69
+-#define ECOMM 70
+-#define EPROTO 71
+-#define EMULTIHOP 72
+-#define EDOTDOT 73
+-#define EBADMSG 74
+-#define EOVERFLOW 75
+-#define ENOTUNIQ 76
+-#define EBADFD 77
+-#define EREMCHG 78
+-#define ELIBACC 79
+-#define ELIBBAD 80
+-#define ELIBSCN 81
+-#define ELIBMAX 82
+-#define ELIBEXEC 83
+-#define EILSEQ 84
+-#define ERESTART 85
+-#define ESTRPIPE 86
+-#define EUSERS 87
+-#define ENOTSOCK 88
+-#define EDESTADDRREQ 89
+-#define EMSGSIZE 90
+-#define EPROTOTYPE 91
+-#define ENOPROTOOPT 92
+-#define EPROTONOSUPPORT 93
+-#define ESOCKTNOSUPPORT 94
+-#define EOPNOTSUPP 95
+-#define ENOTSUP EOPNOTSUPP
+-#define EPFNOSUPPORT 96
+-#define EAFNOSUPPORT 97
+-#define EADDRINUSE 98
+-#define EADDRNOTAVAIL 99
+-#define ENETDOWN 100
+-#define ENETUNREACH 101
+-#define ENETRESET 102
+-#define ECONNABORTED 103
+-#define ECONNRESET 104
+-#define ENOBUFS 105
+-#define EISCONN 106
+-#define ENOTCONN 107
+-#define ESHUTDOWN 108
+-#define ETOOMANYREFS 109
+-#define ETIMEDOUT 110
+-#define ECONNREFUSED 111
+-#define EHOSTDOWN 112
+-#define EHOSTUNREACH 113
+-#define EALREADY 114
+-#define EINPROGRESS 115
+-#define ESTALE 116
+-#define EUCLEAN 117
+-#define ENOTNAM 118
+-#define ENAVAIL 119
+-#define EISNAM 120
+-#define EREMOTEIO 121
+-#define EDQUOT 122
+-#define ENOMEDIUM 123
+-#define EMEDIUMTYPE 124
+-#define ECANCELED 125
+-#define ENOKEY 126
+-#define EKEYEXPIRED 127
+-#define EKEYREVOKED 128
+-#define EKEYREJECTED 129
+-#define EOWNERDEAD 130
+-#define ENOTRECOVERABLE 131
+-#define ERFKILL 132
+-#define EHWPOISON 133
+--- a/arch/aarch64/bits/mman.h
++++ b/arch/aarch64/bits/mman.h
+@@ -36,6 +36,7 @@
+
+ #define MCL_CURRENT 1
+ #define MCL_FUTURE 2
++#define MCL_ONFAULT 4
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+ #define MADV_NORMAL 0
+--- a/arch/aarch64/bits/statfs.h
++++ /dev/null
+@@ -1,7 +0,0 @@
+-struct statfs {
+- unsigned long f_type, f_bsize;
+- fsblkcnt_t f_blocks, f_bfree, f_bavail;
+- fsfilcnt_t f_files, f_ffree;
+- fsid_t f_fsid;
+- unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
+-};
+--- a/arch/aarch64/bits/stdarg.h
++++ /dev/null
+@@ -1,4 +0,0 @@
+-#define va_start(v,l) __builtin_va_start(v,l)
+-#define va_end(v) __builtin_va_end(v)
+-#define va_arg(v,l) __builtin_va_arg(v,l)
+-#define va_copy(d,s) __builtin_va_copy(d,s)
+--- a/arch/aarch64/bits/syscall.h
++++ b/arch/aarch64/bits/syscall.h
+@@ -265,6 +265,9 @@
+ #define __NR_memfd_create 279
+ #define __NR_bpf 280
+ #define __NR_execveat 281
++#define __NR_userfaultfd 282
++#define __NR_membarrier 283
++#define __NR_mlock2 284
+
+ #define SYS_io_setup __NR_io_setup
+ #define SYS_io_destroy __NR_io_destroy
+@@ -533,3 +536,6 @@
+ #define SYS_memfd_create __NR_memfd_create
+ #define SYS_bpf __NR_bpf
+ #define SYS_execveat __NR_execveat
++#define SYS_userfaultfd __NR_userfaultfd
++#define SYS_membarrier __NR_membarrier
++#define SYS_mlock2 __NR_mlock2
+--- a/arch/aarch64/bits/termios.h
++++ /dev/null
+@@ -1,160 +0,0 @@
+-struct termios
+-{
+- tcflag_t c_iflag;
+- tcflag_t c_oflag;
+- tcflag_t c_cflag;
+- tcflag_t c_lflag;
+- cc_t c_line;
+- cc_t c_cc[NCCS];
+- speed_t __c_ispeed;
+- speed_t __c_ospeed;
+-};
+-
+-#define VINTR 0
+-#define VQUIT 1
+-#define VERASE 2
+-#define VKILL 3
+-#define VEOF 4
+-#define VTIME 5
+-#define VMIN 6
+-#define VSWTC 7
+-#define VSTART 8
+-#define VSTOP 9
+-#define VSUSP 10
+-#define VEOL 11
+-#define VREPRINT 12
+-#define VDISCARD 13
+-#define VWERASE 14
+-#define VLNEXT 15
+-#define VEOL2 16
+-
+-#define IGNBRK 0000001
+-#define BRKINT 0000002
+-#define IGNPAR 0000004
+-#define PARMRK 0000010
+-#define INPCK 0000020
+-#define ISTRIP 0000040
+-#define INLCR 0000100
+-#define IGNCR 0000200
+-#define ICRNL 0000400
+-#define IUCLC 0001000
+-#define IXON 0002000
+-#define IXANY 0004000
+-#define IXOFF 0010000
+-#define IMAXBEL 0020000
+-#define IUTF8 0040000
+-
+-#define OPOST 0000001
+-#define OLCUC 0000002
+-#define ONLCR 0000004
+-#define OCRNL 0000010
+-#define ONOCR 0000020
+-#define ONLRET 0000040
+-#define OFILL 0000100
+-#define OFDEL 0000200
+-#define NLDLY 0000400
+-#define NL0 0000000
+-#define NL1 0000400
+-#define CRDLY 0003000
+-#define CR0 0000000
+-#define CR1 0001000
+-#define CR2 0002000
+-#define CR3 0003000
+-#define TABDLY 0014000
+-#define TAB0 0000000
+-#define TAB1 0004000
+-#define TAB2 0010000
+-#define TAB3 0014000
+-#define BSDLY 0020000
+-#define BS0 0000000
+-#define BS1 0020000
+-#define FFDLY 0100000
+-#define FF0 0000000
+-#define FF1 0100000
+-
+-#define VTDLY 0040000
+-#define VT0 0000000
+-#define VT1 0040000
+-
+-#define B0 0000000
+-#define B50 0000001
+-#define B75 0000002
+-#define B110 0000003
+-#define B134 0000004
+-#define B150 0000005
+-#define B200 0000006
+-#define B300 0000007
+-#define B600 0000010
+-#define B1200 0000011
+-#define B1800 0000012
+-#define B2400 0000013
+-#define B4800 0000014
+-#define B9600 0000015
+-#define B19200 0000016
+-#define B38400 0000017
+-
+-#define B57600 0010001
+-#define B115200 0010002
+-#define B230400 0010003
+-#define B460800 0010004
+-#define B500000 0010005
+-#define B576000 0010006
+-#define B921600 0010007
+-#define B1000000 0010010
+-#define B1152000 0010011
+-#define B1500000 0010012
+-#define B2000000 0010013
+-#define B2500000 0010014
+-#define B3000000 0010015
+-#define B3500000 0010016
+-#define B4000000 0010017
+-
+-#define CBAUD 0010017
+-
+-#define CSIZE 0000060
+-#define CS5 0000000
+-#define CS6 0000020
+-#define CS7 0000040
+-#define CS8 0000060
+-#define CSTOPB 0000100
+-#define CREAD 0000200
+-#define PARENB 0000400
+-#define PARODD 0001000
+-#define HUPCL 0002000
+-#define CLOCAL 0004000
+-
+-#define ISIG 0000001
+-#define ICANON 0000002
+-#define ECHO 0000010
+-#define ECHOE 0000020
+-#define ECHOK 0000040
+-#define ECHONL 0000100
+-#define NOFLSH 0000200
+-#define TOSTOP 0000400
+-#define IEXTEN 0100000
+-
+-#define ECHOCTL 0001000
+-#define ECHOPRT 0002000
+-#define ECHOKE 0004000
+-#define FLUSHO 0010000
+-#define PENDIN 0040000
+-
+-#define TCOOFF 0
+-#define TCOON 1
+-#define TCIOFF 2
+-#define TCION 3
+-
+-#define TCIFLUSH 0
+-#define TCOFLUSH 1
+-#define TCIOFLUSH 2
+-
+-#define TCSANOW 0
+-#define TCSADRAIN 1
+-#define TCSAFLUSH 2
+-
+-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+-#define CBAUDEX 0010000
+-#define CRTSCTS 020000000000
+-#define EXTPROC 0200000
+-#define XTABS 0014000
+-#endif
+--- a/arch/aarch64/pthread_arch.h
++++ b/arch/aarch64/pthread_arch.h
+@@ -8,4 +8,4 @@ static inline struct pthread *__pthread_
+ #define TLS_ABOVE_TP
+ #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 16)
+
+-#define CANCEL_REG_IP 33
++#define MC_PC pc
+--- a/arch/arm/atomic.h
++++ /dev/null
+@@ -1,261 +0,0 @@
+-#ifndef _INTERNAL_ATOMIC_H
+-#define _INTERNAL_ATOMIC_H
+-
+-#include <stdint.h>
+-
+-static inline int a_ctz_l(unsigned long x)
+-{
+- static const char debruijn32[32] = {
+- 0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
+- 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
+- };
+- return debruijn32[(x&-x)*0x076be629 >> 27];
+-}
+-
+-static inline int a_ctz_64(uint64_t x)
+-{
+- uint32_t y = x;
+- if (!y) {
+- y = x>>32;
+- return 32 + a_ctz_l(y);
+- }
+- return a_ctz_l(y);
+-}
+-
+-#if __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7
+-
+-static inline void a_barrier()
+-{
+- __asm__ __volatile__("dmb ish");
+-}
+-
+-static inline int a_cas(volatile int *p, int t, int s)
+-{
+- int old;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldrex %0,%3\n"
+- " cmp %0,%1\n"
+- " bne 1f\n"
+- " strex %0,%2,%3\n"
+- " cmp %0, #0\n"
+- " bne 1b\n"
+- " mov %0, %1\n"
+- "1: dmb ish\n"
+- : "=&r"(old)
+- : "r"(t), "r"(s), "Q"(*p)
+- : "memory", "cc" );
+- return old;
+-}
+-
+-static inline int a_swap(volatile int *x, int v)
+-{
+- int old, tmp;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldrex %0,%3\n"
+- " strex %1,%2,%3\n"
+- " cmp %1, #0\n"
+- " bne 1b\n"
+- " dmb ish\n"
+- : "=&r"(old), "=&r"(tmp)
+- : "r"(v), "Q"(*x)
+- : "memory", "cc" );
+- return old;
+-}
+-
+-static inline int a_fetch_add(volatile int *x, int v)
+-{
+- int old, tmp;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldrex %0,%3\n"
+- " add %0,%0,%2\n"
+- " strex %1,%0,%3\n"
+- " cmp %1, #0\n"
+- " bne 1b\n"
+- " dmb ish\n"
+- : "=&r"(old), "=&r"(tmp)
+- : "r"(v), "Q"(*x)
+- : "memory", "cc" );
+- return old-v;
+-}
+-
+-static inline void a_inc(volatile int *x)
+-{
+- int tmp, tmp2;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldrex %0,%2\n"
+- " add %0,%0,#1\n"
+- " strex %1,%0,%2\n"
+- " cmp %1, #0\n"
+- " bne 1b\n"
+- " dmb ish\n"
+- : "=&r"(tmp), "=&r"(tmp2)
+- : "Q"(*x)
+- : "memory", "cc" );
+-}
+-
+-static inline void a_dec(volatile int *x)
+-{
+- int tmp, tmp2;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldrex %0,%2\n"
+- " sub %0,%0,#1\n"
+- " strex %1,%0,%2\n"
+- " cmp %1, #0\n"
+- " bne 1b\n"
+- " dmb ish\n"
+- : "=&r"(tmp), "=&r"(tmp2)
+- : "Q"(*x)
+- : "memory", "cc" );
+-}
+-
+-static inline void a_and(volatile int *x, int v)
+-{
+- int tmp, tmp2;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldrex %0,%3\n"
+- " and %0,%0,%2\n"
+- " strex %1,%0,%3\n"
+- " cmp %1, #0\n"
+- " bne 1b\n"
+- " dmb ish\n"
+- : "=&r"(tmp), "=&r"(tmp2)
+- : "r"(v), "Q"(*x)
+- : "memory", "cc" );
+-}
+-
+-static inline void a_or(volatile int *x, int v)
+-{
+- int tmp, tmp2;
+- __asm__ __volatile__(
+- " dmb ish\n"
+- "1: ldrex %0,%3\n"
+- " orr %0,%0,%2\n"
+- " strex %1,%0,%3\n"
+- " cmp %1, #0\n"
+- " bne 1b\n"
+- " dmb ish\n"
+- : "=&r"(tmp), "=&r"(tmp2)
+- : "r"(v), "Q"(*x)
+- : "memory", "cc" );
+-}
+-
+-static inline void a_store(volatile int *p, int x)
+-{
+- __asm__ __volatile__(
+- " dmb ish\n"
+- " str %1,%0\n"
+- " dmb ish\n"
+- : "=m"(*p)
+- : "r"(x)
+- : "memory", "cc" );
+-}
+-
+-#else
+-
+-int __a_cas(int, int, volatile int *) __attribute__((__visibility__("hidden")));
+-#define __k_cas __a_cas
+-
+-static inline void a_barrier()
+-{
+- __asm__ __volatile__("bl __a_barrier"
+- : : : "memory", "cc", "ip", "lr" );
+-}
+-
+-static inline int a_cas(volatile int *p, int t, int s)
+-{
+- int old;
+- for (;;) {
+- if (!__k_cas(t, s, p))
+- return t;
+- if ((old=*p) != t)
+- return old;
+- }
+-}
+-
+-static inline int a_swap(volatile int *x, int v)
+-{
+- int old;
+- do old = *x;
+- while (__k_cas(old, v, x));
+- return old;
+-}
+-
+-static inline int a_fetch_add(volatile int *x, int v)
+-{
+- int old;
+- do old = *x;
+- while (__k_cas(old, old+v, x));
+- return old;
+-}
+-
+-static inline void a_inc(volatile int *x)
+-{
+- a_fetch_add(x, 1);
+-}
+-
+-static inline void a_dec(volatile int *x)
+-{
+- a_fetch_add(x, -1);
+-}
+-
+-static inline void a_store(volatile int *p, int x)
+-{
+- a_barrier();
+- *p = x;
+- a_barrier();
+-}
+-
+-static inline void a_and(volatile int *p, int v)
+-{
+- int old;
+- do old = *p;
+- while (__k_cas(old, old&v, p));
+-}
+-
+-static inline void a_or(volatile int *p, int v)
+-{
+- int old;
+- do old = *p;
+- while (__k_cas(old, old|v, p));
+-}
+-
+-#endif
+-
+-static inline void *a_cas_p(volatile void *p, void *t, void *s)
+-{
+- return (void *)a_cas(p, (int)t, (int)s);
+-}
+-
+-#define a_spin a_barrier
+-
+-static inline void a_crash()
+-{
+- *(volatile char *)0=0;
+-}
+-
+-static inline void a_or_l(volatile void *p, long v)
+-{
+- a_or(p, v);
+-}
+-
+-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_and((int *)p, u.r[0]);
+- a_and((int *)p+1, u.r[1]);
+-}
+-
+-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_or((int *)p, u.r[0]);
+- a_or((int *)p+1, u.r[1]);
+-}
+-
+-#endif
+--- /dev/null
++++ b/arch/arm/atomic_arch.h
+@@ -0,0 +1,76 @@
++__attribute__((__visibility__("hidden")))
++extern const void *__arm_atomics[3]; /* gettp, cas, barrier */
++
++#if ((__ARM_ARCH_6__ || __ARM_ARCH_6K__ || __ARM_ARCH_6ZK__) && !__thumb__) \
++ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7
++
++#define a_ll a_ll
++static inline int a_ll(volatile int *p)
++{
++ int v;
++ __asm__ __volatile__ ("ldrex %0, %1" : "=r"(v) : "Q"(*p));
++ return v;
++}
++
++#define a_sc a_sc
++static inline int a_sc(volatile int *p, int v)
++{
++ int r;
++ __asm__ __volatile__ ("strex %0,%1,%2" : "=&r"(r) : "r"(v), "Q"(*p) : "memory");
++ return !r;
++}
++
++#if __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH >= 7
++
++#define a_barrier a_barrier
++static inline void a_barrier()
++{
++ __asm__ __volatile__ ("dmb ish" : : : "memory");
++}
++
++#endif
++
++#define a_pre_llsc a_barrier
++#define a_post_llsc a_barrier
++
++#else
++
++#define a_cas a_cas
++static inline int a_cas(volatile int *p, int t, int s)
++{
++ for (;;) {
++ register int r0 __asm__("r0") = t;
++ register int r1 __asm__("r1") = s;
++ register volatile int *r2 __asm__("r2") = p;
++ int old;
++ __asm__ __volatile__ (
++ "bl __a_cas"
++ : "+r"(r0) : "r"(r1), "r"(r2)
++ : "memory", "r3", "lr", "ip", "cc" );
++ if (!r0) return t;
++ if ((old=*p)!=t) return old;
++ }
++}
++
++#endif
++
++#ifndef a_barrier
++#define a_barrier a_barrier
++static inline void a_barrier()
++{
++ __asm__ __volatile__("bl __a_barrier"
++ : : : "memory", "cc", "ip", "lr" );
++}
++#endif
++
++#define a_crash a_crash
++static inline void a_crash()
++{
++ __asm__ __volatile__(
++#ifndef __thumb__
++ ".word 0xe7f000f0"
++#else
++ ".short 0xdeff"
++#endif
++ : : : "memory");
++}
+--- a/arch/arm/bits/errno.h
++++ /dev/null
+@@ -1,134 +0,0 @@
+-#define EPERM 1
+-#define ENOENT 2
+-#define ESRCH 3
+-#define EINTR 4
+-#define EIO 5
+-#define ENXIO 6
+-#define E2BIG 7
+-#define ENOEXEC 8
+-#define EBADF 9
+-#define ECHILD 10
+-#define EAGAIN 11
+-#define ENOMEM 12
+-#define EACCES 13
+-#define EFAULT 14
+-#define ENOTBLK 15
+-#define EBUSY 16
+-#define EEXIST 17
+-#define EXDEV 18
+-#define ENODEV 19
+-#define ENOTDIR 20
+-#define EISDIR 21
+-#define EINVAL 22
+-#define ENFILE 23
+-#define EMFILE 24
+-#define ENOTTY 25
+-#define ETXTBSY 26
+-#define EFBIG 27
+-#define ENOSPC 28
+-#define ESPIPE 29
+-#define EROFS 30
+-#define EMLINK 31
+-#define EPIPE 32
+-#define EDOM 33
+-#define ERANGE 34
+-#define EDEADLK 35
+-#define ENAMETOOLONG 36
+-#define ENOLCK 37
+-#define ENOSYS 38
+-#define ENOTEMPTY 39
+-#define ELOOP 40
+-#define EWOULDBLOCK EAGAIN
+-#define ENOMSG 42
+-#define EIDRM 43
+-#define ECHRNG 44
+-#define EL2NSYNC 45
+-#define EL3HLT 46
+-#define EL3RST 47
+-#define ELNRNG 48
+-#define EUNATCH 49
+-#define ENOCSI 50
+-#define EL2HLT 51
+-#define EBADE 52
+-#define EBADR 53
+-#define EXFULL 54
+-#define ENOANO 55
+-#define EBADRQC 56
+-#define EBADSLT 57
+-#define EDEADLOCK EDEADLK
+-#define EBFONT 59
+-#define ENOSTR 60
+-#define ENODATA 61
+-#define ETIME 62
+-#define ENOSR 63
+-#define ENONET 64
+-#define ENOPKG 65
+-#define EREMOTE 66
+-#define ENOLINK 67
+-#define EADV 68
+-#define ESRMNT 69
+-#define ECOMM 70
+-#define EPROTO 71
+-#define EMULTIHOP 72
+-#define EDOTDOT 73
+-#define EBADMSG 74
+-#define EOVERFLOW 75
+-#define ENOTUNIQ 76
+-#define EBADFD 77
+-#define EREMCHG 78
+-#define ELIBACC 79
+-#define ELIBBAD 80
+-#define ELIBSCN 81
+-#define ELIBMAX 82
+-#define ELIBEXEC 83
+-#define EILSEQ 84
+-#define ERESTART 85
+-#define ESTRPIPE 86
+-#define EUSERS 87
+-#define ENOTSOCK 88
+-#define EDESTADDRREQ 89
+-#define EMSGSIZE 90
+-#define EPROTOTYPE 91
+-#define ENOPROTOOPT 92
+-#define EPROTONOSUPPORT 93
+-#define ESOCKTNOSUPPORT 94
+-#define EOPNOTSUPP 95
+-#define ENOTSUP EOPNOTSUPP
+-#define EPFNOSUPPORT 96
+-#define EAFNOSUPPORT 97
+-#define EADDRINUSE 98
+-#define EADDRNOTAVAIL 99
+-#define ENETDOWN 100
+-#define ENETUNREACH 101
+-#define ENETRESET 102
+-#define ECONNABORTED 103
+-#define ECONNRESET 104
+-#define ENOBUFS 105
+-#define EISCONN 106
+-#define ENOTCONN 107
+-#define ESHUTDOWN 108
+-#define ETOOMANYREFS 109
+-#define ETIMEDOUT 110
+-#define ECONNREFUSED 111
+-#define EHOSTDOWN 112
+-#define EHOSTUNREACH 113
+-#define EALREADY 114
+-#define EINPROGRESS 115
+-#define ESTALE 116
+-#define EUCLEAN 117
+-#define ENOTNAM 118
+-#define ENAVAIL 119
+-#define EISNAM 120
+-#define EREMOTEIO 121
+-#define EDQUOT 122
+-#define ENOMEDIUM 123
+-#define EMEDIUMTYPE 124
+-#define ECANCELED 125
+-#define ENOKEY 126
+-#define EKEYEXPIRED 127
+-#define EKEYREVOKED 128
+-#define EKEYREJECTED 129
+-#define EOWNERDEAD 130
+-#define ENOTRECOVERABLE 131
+-#define ERFKILL 132
+-#define EHWPOISON 133
+--- a/arch/arm/bits/ioctl.h
++++ /dev/null
+@@ -1,197 +0,0 @@
+-#define _IOC(a,b,c,d) ( ((a)<<30) | ((b)<<8) | (c) | ((d)<<16) )
+-#define _IOC_NONE 0U
+-#define _IOC_WRITE 1U
+-#define _IOC_READ 2U
+-
+-#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
+-#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
+-#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
+-#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
+-
+-#define TCGETS 0x5401
+-#define TCSETS 0x5402
+-#define TCSETSW 0x5403
+-#define TCSETSF 0x5404
+-#define TCGETA 0x5405
+-#define TCSETA 0x5406
+-#define TCSETAW 0x5407
+-#define TCSETAF 0x5408
+-#define TCSBRK 0x5409
+-#define TCXONC 0x540A
+-#define TCFLSH 0x540B
+-#define TIOCEXCL 0x540C
+-#define TIOCNXCL 0x540D
+-#define TIOCSCTTY 0x540E
+-#define TIOCGPGRP 0x540F
+-#define TIOCSPGRP 0x5410
+-#define TIOCOUTQ 0x5411
+-#define TIOCSTI 0x5412
+-#define TIOCGWINSZ 0x5413
+-#define TIOCSWINSZ 0x5414
+-#define TIOCMGET 0x5415
+-#define TIOCMBIS 0x5416
+-#define TIOCMBIC 0x5417
+-#define TIOCMSET 0x5418
+-#define TIOCGSOFTCAR 0x5419
+-#define TIOCSSOFTCAR 0x541A
+-#define FIONREAD 0x541B
+-#define TIOCINQ FIONREAD
+-#define TIOCLINUX 0x541C
+-#define TIOCCONS 0x541D
+-#define TIOCGSERIAL 0x541E
+-#define TIOCSSERIAL 0x541F
+-#define TIOCPKT 0x5420
+-#define FIONBIO 0x5421
+-#define TIOCNOTTY 0x5422
+-#define TIOCSETD 0x5423
+-#define TIOCGETD 0x5424
+-#define TCSBRKP 0x5425
+-#define TIOCTTYGSTRUCT 0x5426
+-#define TIOCSBRK 0x5427
+-#define TIOCCBRK 0x5428
+-#define TIOCGSID 0x5429
+-#define TIOCGPTN 0x80045430
+-#define TIOCSPTLCK 0x40045431
+-#define TCGETX 0x5432
+-#define TCSETX 0x5433
+-#define TCSETXF 0x5434
+-#define TCSETXW 0x5435
+-
+-#define FIONCLEX 0x5450
+-#define FIOCLEX 0x5451
+-#define FIOASYNC 0x5452
+-#define TIOCSERCONFIG 0x5453
+-#define TIOCSERGWILD 0x5454
+-#define TIOCSERSWILD 0x5455
+-#define TIOCGLCKTRMIOS 0x5456
+-#define TIOCSLCKTRMIOS 0x5457
+-#define TIOCSERGSTRUCT 0x5458
+-#define TIOCSERGETLSR 0x5459
+-#define TIOCSERGETMULTI 0x545A
+-#define TIOCSERSETMULTI 0x545B
+-
+-#define TIOCMIWAIT 0x545C
+-#define TIOCGICOUNT 0x545D
+-#define TIOCGHAYESESP 0x545E
+-#define TIOCSHAYESESP 0x545F
+-#define FIOQSIZE 0x5460
+-
+-#define TIOCPKT_DATA 0
+-#define TIOCPKT_FLUSHREAD 1
+-#define TIOCPKT_FLUSHWRITE 2
+-#define TIOCPKT_STOP 4
+-#define TIOCPKT_START 8
+-#define TIOCPKT_NOSTOP 16
+-#define TIOCPKT_DOSTOP 32
+-#define TIOCPKT_IOCTL 64
+-
+-#define TIOCSER_TEMT 0x01
+-
+-struct winsize {
+- unsigned short ws_row;
+- unsigned short ws_col;
+- unsigned short ws_xpixel;
+- unsigned short ws_ypixel;
+-};
+-
+-#define TIOCM_LE 0x001
+-#define TIOCM_DTR 0x002
+-#define TIOCM_RTS 0x004
+-#define TIOCM_ST 0x008
+-#define TIOCM_SR 0x010
+-#define TIOCM_CTS 0x020
+-#define TIOCM_CAR 0x040
+-#define TIOCM_RNG 0x080
+-#define TIOCM_DSR 0x100
+-#define TIOCM_CD TIOCM_CAR
+-#define TIOCM_RI TIOCM_RNG
+-#define TIOCM_OUT1 0x2000
+-#define TIOCM_OUT2 0x4000
+-#define TIOCM_LOOP 0x8000
+-#define TIOCM_MODEM_BITS TIOCM_OUT2
+-
+-#define N_TTY 0
+-#define N_SLIP 1
+-#define N_MOUSE 2
+-#define N_PPP 3
+-#define N_STRIP 4
+-#define N_AX25 5
+-#define N_X25 6
+-#define N_6PACK 7
+-#define N_MASC 8
+-#define N_R3964 9
+-#define N_PROFIBUS_FDL 10
+-#define N_IRDA 11
+-#define N_SMSBLOCK 12
+-#define N_HDLC 13
+-#define N_SYNC_PPP 14
+-#define N_HCI 15
+-
+-#define FIOSETOWN 0x8901
+-#define SIOCSPGRP 0x8902
+-#define FIOGETOWN 0x8903
+-#define SIOCGPGRP 0x8904
+-#define SIOCATMARK 0x8905
+-#define SIOCGSTAMP 0x8906
+-
+-#define SIOCADDRT 0x890B
+-#define SIOCDELRT 0x890C
+-#define SIOCRTMSG 0x890D
+-
+-#define SIOCGIFNAME 0x8910
+-#define SIOCSIFLINK 0x8911
+-#define SIOCGIFCONF 0x8912
+-#define SIOCGIFFLAGS 0x8913
+-#define SIOCSIFFLAGS 0x8914
+-#define SIOCGIFADDR 0x8915
+-#define SIOCSIFADDR 0x8916
+-#define SIOCGIFDSTADDR 0x8917
+-#define SIOCSIFDSTADDR 0x8918
+-#define SIOCGIFBRDADDR 0x8919
+-#define SIOCSIFBRDADDR 0x891a
+-#define SIOCGIFNETMASK 0x891b
+-#define SIOCSIFNETMASK 0x891c
+-#define SIOCGIFMETRIC 0x891d
+-#define SIOCSIFMETRIC 0x891e
+-#define SIOCGIFMEM 0x891f
+-#define SIOCSIFMEM 0x8920
+-#define SIOCGIFMTU 0x8921
+-#define SIOCSIFMTU 0x8922
+-#define SIOCSIFHWADDR 0x8924
+-#define SIOCGIFENCAP 0x8925
+-#define SIOCSIFENCAP 0x8926
+-#define SIOCGIFHWADDR 0x8927
+-#define SIOCGIFSLAVE 0x8929
+-#define SIOCSIFSLAVE 0x8930
+-#define SIOCADDMULTI 0x8931
+-#define SIOCDELMULTI 0x8932
+-#define SIOCGIFINDEX 0x8933
+-#define SIOGIFINDEX SIOCGIFINDEX
+-#define SIOCSIFPFLAGS 0x8934
+-#define SIOCGIFPFLAGS 0x8935
+-#define SIOCDIFADDR 0x8936
+-#define SIOCSIFHWBROADCAST 0x8937
+-#define SIOCGIFCOUNT 0x8938
+-
+-#define SIOCGIFBR 0x8940
+-#define SIOCSIFBR 0x8941
+-
+-#define SIOCGIFTXQLEN 0x8942
+-#define SIOCSIFTXQLEN 0x8943
+-
+-#define SIOCDARP 0x8953
+-#define SIOCGARP 0x8954
+-#define SIOCSARP 0x8955
+-
+-#define SIOCDRARP 0x8960
+-#define SIOCGRARP 0x8961
+-#define SIOCSRARP 0x8962
+-
+-#define SIOCGIFMAP 0x8970
+-#define SIOCSIFMAP 0x8971
+-
+-#define SIOCADDDLCI 0x8980
+-#define SIOCDELDLCI 0x8981
+-
+-#define SIOCDEVPRIVATE 0x89F0
+-#define SIOCPROTOPRIVATE 0x89E0
+--- a/arch/arm/bits/ipc.h
++++ /dev/null
+@@ -1,14 +0,0 @@
+-struct ipc_perm
+-{
+- key_t __ipc_perm_key;
+- uid_t uid;
+- gid_t gid;
+- uid_t cuid;
+- gid_t cgid;
+- mode_t mode;
+- int __ipc_perm_seq;
+- long __pad1;
+- long __pad2;
+-};
+-
+-#define IPC_64 0x100
+--- a/arch/arm/bits/mman.h
++++ b/arch/arm/bits/mman.h
+@@ -37,6 +37,7 @@
+
+ #define MCL_CURRENT 1
+ #define MCL_FUTURE 2
++#define MCL_ONFAULT 4
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+ #define MADV_NORMAL 0
+--- a/arch/arm/bits/msg.h
++++ /dev/null
+@@ -1,16 +0,0 @@
+-struct msqid_ds
+-{
+- struct ipc_perm msg_perm;
+- time_t msg_stime;
+- int __unused1;
+- time_t msg_rtime;
+- int __unused2;
+- time_t msg_ctime;
+- int __unused3;
+- unsigned long msg_cbytes;
+- msgqnum_t msg_qnum;
+- msglen_t msg_qbytes;
+- pid_t msg_lspid;
+- pid_t msg_lrpid;
+- unsigned long __unused[2];
+-};
+--- a/arch/arm/bits/sem.h
++++ /dev/null
+@@ -1,16 +0,0 @@
+-struct semid_ds {
+- struct ipc_perm sem_perm;
+- time_t sem_otime;
+- time_t __unused1;
+- time_t sem_ctime;
+- time_t __unused2;
+-#if __BYTE_ORDER == __LITTLE_ENDIAN
+- unsigned short sem_nsems;
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+-#else
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+- unsigned short sem_nsems;
+-#endif
+- time_t __unused3;
+- time_t __unused4;
+-};
+--- a/arch/arm/bits/shm.h
++++ /dev/null
+@@ -1,29 +0,0 @@
+-#define SHMLBA 4096
+-
+-struct shmid_ds
+-{
+- struct ipc_perm shm_perm;
+- size_t shm_segsz;
+- time_t shm_atime;
+- int __unused1;
+- time_t shm_dtime;
+- int __unused2;
+- time_t shm_ctime;
+- int __unused3;
+- pid_t shm_cpid;
+- pid_t shm_lpid;
+- unsigned long shm_nattch;
+- unsigned long __pad1;
+- unsigned long __pad2;
+-};
+-
+-struct shminfo {
+- unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
+-};
+-
+-struct shm_info {
+- int __used_ids;
+- unsigned long shm_tot, shm_rss, shm_swp;
+- unsigned long __swap_attempts, __swap_successes;
+-};
+-
+--- a/arch/arm/bits/socket.h
++++ /dev/null
+@@ -1,17 +0,0 @@
+-struct msghdr
+-{
+- void *msg_name;
+- socklen_t msg_namelen;
+- struct iovec *msg_iov;
+- int msg_iovlen;
+- void *msg_control;
+- socklen_t msg_controllen;
+- int msg_flags;
+-};
+-
+-struct cmsghdr
+-{
+- socklen_t cmsg_len;
+- int cmsg_level;
+- int cmsg_type;
+-};
+--- a/arch/arm/bits/statfs.h
++++ /dev/null
+@@ -1,7 +0,0 @@
+-struct statfs {
+- unsigned long f_type, f_bsize;
+- fsblkcnt_t f_blocks, f_bfree, f_bavail;
+- fsfilcnt_t f_files, f_ffree;
+- fsid_t f_fsid;
+- unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
+-};
+--- a/arch/arm/bits/stdarg.h
++++ /dev/null
+@@ -1,4 +0,0 @@
+-#define va_start(v,l) __builtin_va_start(v,l)
+-#define va_end(v) __builtin_va_end(v)
+-#define va_arg(v,l) __builtin_va_arg(v,l)
+-#define va_copy(d,s) __builtin_va_copy(d,s)
+--- a/arch/arm/bits/syscall.h
++++ b/arch/arm/bits/syscall.h
+@@ -341,6 +341,9 @@
+ #define __NR_memfd_create 385
+ #define __NR_bpf 386
+ #define __NR_execveat 387
++#define __NR_userfaultfd 388
++#define __NR_membarrier 389
++#define __NR_mlock2 390
+
+ #define __ARM_NR_breakpoint 0x0f0001
+ #define __ARM_NR_cacheflush 0x0f0002
+@@ -693,3 +696,6 @@
+ #define SYS_memfd_create 385
+ #define SYS_bpf 386
+ #define SYS_execveat 387
++#define SYS_userfaultfd 388
++#define SYS_membarrier 389
++#define SYS_mlock2 390
+--- a/arch/arm/bits/termios.h
++++ /dev/null
+@@ -1,160 +0,0 @@
+-struct termios
+-{
+- tcflag_t c_iflag;
+- tcflag_t c_oflag;
+- tcflag_t c_cflag;
+- tcflag_t c_lflag;
+- cc_t c_line;
+- cc_t c_cc[NCCS];
+- speed_t __c_ispeed;
+- speed_t __c_ospeed;
+-};
+-
+-#define VINTR 0
+-#define VQUIT 1
+-#define VERASE 2
+-#define VKILL 3
+-#define VEOF 4
+-#define VTIME 5
+-#define VMIN 6
+-#define VSWTC 7
+-#define VSTART 8
+-#define VSTOP 9
+-#define VSUSP 10
+-#define VEOL 11
+-#define VREPRINT 12
+-#define VDISCARD 13
+-#define VWERASE 14
+-#define VLNEXT 15
+-#define VEOL2 16
+-
+-#define IGNBRK 0000001
+-#define BRKINT 0000002
+-#define IGNPAR 0000004
+-#define PARMRK 0000010
+-#define INPCK 0000020
+-#define ISTRIP 0000040
+-#define INLCR 0000100
+-#define IGNCR 0000200
+-#define ICRNL 0000400
+-#define IUCLC 0001000
+-#define IXON 0002000
+-#define IXANY 0004000
+-#define IXOFF 0010000
+-#define IMAXBEL 0020000
+-#define IUTF8 0040000
+-
+-#define OPOST 0000001
+-#define OLCUC 0000002
+-#define ONLCR 0000004
+-#define OCRNL 0000010
+-#define ONOCR 0000020
+-#define ONLRET 0000040
+-#define OFILL 0000100
+-#define OFDEL 0000200
+-#define NLDLY 0000400
+-#define NL0 0000000
+-#define NL1 0000400
+-#define CRDLY 0003000
+-#define CR0 0000000
+-#define CR1 0001000
+-#define CR2 0002000
+-#define CR3 0003000
+-#define TABDLY 0014000
+-#define TAB0 0000000
+-#define TAB1 0004000
+-#define TAB2 0010000
+-#define TAB3 0014000
+-#define BSDLY 0020000
+-#define BS0 0000000
+-#define BS1 0020000
+-#define FFDLY 0100000
+-#define FF0 0000000
+-#define FF1 0100000
+-
+-#define VTDLY 0040000
+-#define VT0 0000000
+-#define VT1 0040000
+-
+-#define B0 0000000
+-#define B50 0000001
+-#define B75 0000002
+-#define B110 0000003
+-#define B134 0000004
+-#define B150 0000005
+-#define B200 0000006
+-#define B300 0000007
+-#define B600 0000010
+-#define B1200 0000011
+-#define B1800 0000012
+-#define B2400 0000013
+-#define B4800 0000014
+-#define B9600 0000015
+-#define B19200 0000016
+-#define B38400 0000017
+-
+-#define B57600 0010001
+-#define B115200 0010002
+-#define B230400 0010003
+-#define B460800 0010004
+-#define B500000 0010005
+-#define B576000 0010006
+-#define B921600 0010007
+-#define B1000000 0010010
+-#define B1152000 0010011
+-#define B1500000 0010012
+-#define B2000000 0010013
+-#define B2500000 0010014
+-#define B3000000 0010015
+-#define B3500000 0010016
+-#define B4000000 0010017
+-
+-#define CBAUD 0010017
+-
+-#define CSIZE 0000060
+-#define CS5 0000000
+-#define CS6 0000020
+-#define CS7 0000040
+-#define CS8 0000060
+-#define CSTOPB 0000100
+-#define CREAD 0000200
+-#define PARENB 0000400
+-#define PARODD 0001000
+-#define HUPCL 0002000
+-#define CLOCAL 0004000
+-
+-#define ISIG 0000001
+-#define ICANON 0000002
+-#define ECHO 0000010
+-#define ECHOE 0000020
+-#define ECHOK 0000040
+-#define ECHONL 0000100
+-#define NOFLSH 0000200
+-#define TOSTOP 0000400
+-#define IEXTEN 0100000
+-
+-#define ECHOCTL 0001000
+-#define ECHOPRT 0002000
+-#define ECHOKE 0004000
+-#define FLUSHO 0010000
+-#define PENDIN 0040000
+-
+-#define TCOOFF 0
+-#define TCOON 1
+-#define TCIOFF 2
+-#define TCION 3
+-
+-#define TCIFLUSH 0
+-#define TCOFLUSH 1
+-#define TCIOFLUSH 2
+-
+-#define TCSANOW 0
+-#define TCSADRAIN 1
+-#define TCSAFLUSH 2
+-
+-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+-#define CBAUDEX 0010000
+-#define CRTSCTS 020000000000
+-#define EXTPROC 0200000
+-#define XTABS 0014000
+-#endif
+--- a/arch/arm/pthread_arch.h
++++ b/arch/arm/pthread_arch.h
+@@ -27,4 +27,4 @@ static inline pthread_t __pthread_self()
+ #define TLS_ABOVE_TP
+ #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 8)
+
+-#define CANCEL_REG_IP 18
++#define MC_PC arm_pc
+--- a/arch/arm/reloc.h
++++ b/arch/arm/reloc.h
+@@ -6,10 +6,10 @@
+ #define ENDIAN_SUFFIX ""
+ #endif
+
+-#if __SOFTFP__
+-#define FP_SUFFIX ""
+-#else
++#if __ARM_PCS_VFP
+ #define FP_SUFFIX "hf"
++#else
++#define FP_SUFFIX ""
+ #endif
+
+ #define LDSO_ARCH "arm" ENDIAN_SUFFIX FP_SUFFIX
+@@ -28,10 +28,5 @@
+ #define REL_TPOFF R_ARM_TLS_TPOFF32
+ //#define REL_TLSDESC R_ARM_TLS_DESC
+
+-#ifdef __thumb__
+ #define CRTJMP(pc,sp) __asm__ __volatile__( \
+ "mov sp,%1 ; bx %0" : : "r"(pc), "r"(sp) : "memory" )
+-#else
+-#define CRTJMP(pc,sp) __asm__ __volatile__( \
+- "mov sp,%1 ; tst %0,#1 ; moveq pc,%0 ; bx %0" : : "r"(pc), "r"(sp) : "memory" )
+-#endif
+--- a/arch/arm/src/__aeabi_atexit.c
++++ /dev/null
+@@ -1,6 +0,0 @@
+-int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
+-
+-int __aeabi_atexit (void *obj, void (*func) (void *), void *d)
+-{
+- return __cxa_atexit (func, obj, d);
+-}
+--- a/arch/arm/src/__aeabi_memclr.c
++++ /dev/null
+@@ -1,9 +0,0 @@
+-#include <string.h>
+-#include "libc.h"
+-
+-void __aeabi_memclr(void *dest, size_t n)
+-{
+- memset(dest, 0, n);
+-}
+-weak_alias(__aeabi_memclr, __aeabi_memclr4);
+-weak_alias(__aeabi_memclr, __aeabi_memclr8);
+--- a/arch/arm/src/__aeabi_memcpy.c
++++ /dev/null
+@@ -1,9 +0,0 @@
+-#include <string.h>
+-#include "libc.h"
+-
+-void __aeabi_memcpy(void *restrict dest, const void *restrict src, size_t n)
+-{
+- memcpy(dest, src, n);
+-}
+-weak_alias(__aeabi_memcpy, __aeabi_memcpy4);
+-weak_alias(__aeabi_memcpy, __aeabi_memcpy8);
+--- a/arch/arm/src/__aeabi_memmove.c
++++ /dev/null
+@@ -1,9 +0,0 @@
+-#include <string.h>
+-#include "libc.h"
+-
+-void __aeabi_memmove(void *dest, const void *src, size_t n)
+-{
+- memmove(dest, src, n);
+-}
+-weak_alias(__aeabi_memmove, __aeabi_memmove4);
+-weak_alias(__aeabi_memmove, __aeabi_memmove8);
+--- a/arch/arm/src/__aeabi_memset.c
++++ /dev/null
+@@ -1,9 +0,0 @@
+-#include <string.h>
+-#include "libc.h"
+-
+-void __aeabi_memset(void *dest, size_t n, int c)
+-{
+- memset(dest, c, n);
+-}
+-weak_alias(__aeabi_memset, __aeabi_memset4);
+-weak_alias(__aeabi_memset, __aeabi_memset8);
+--- a/arch/arm/src/__set_thread_area.c
++++ /dev/null
+@@ -1,49 +0,0 @@
+-#include <stdint.h>
+-#include <elf.h>
+-#include "pthread_impl.h"
+-#include "libc.h"
+-
+-#define HWCAP_TLS (1 << 15)
+-
+-extern const unsigned char __attribute__((__visibility__("hidden")))
+- __a_barrier_dummy[], __a_barrier_oldkuser[],
+- __a_barrier_v6[], __a_barrier_v7[],
+- __a_cas_dummy[], __a_cas_v6[], __a_cas_v7[],
+- __a_gettp_dummy[];
+-
+-#define __a_barrier_kuser 0xffff0fa0
+-#define __a_cas_kuser 0xffff0fc0
+-#define __a_gettp_kuser 0xffff0fe0
+-
+-extern uintptr_t __attribute__((__visibility__("hidden")))
+- __a_barrier_ptr, __a_cas_ptr, __a_gettp_ptr;
+-
+-#define SET(op,ver) (__a_##op##_ptr = \
+- (uintptr_t)__a_##op##_##ver - (uintptr_t)__a_##op##_dummy)
+-
+-int __set_thread_area(void *p)
+-{
+-#if !__ARM_ARCH_7A__ && !__ARM_ARCH_7R__ && __ARM_ARCH < 7
+- if (__hwcap & HWCAP_TLS) {
+- size_t *aux;
+- SET(cas, v7);
+- SET(barrier, v7);
+- for (aux=libc.auxv; *aux; aux+=2) {
+- if (*aux != AT_PLATFORM) continue;
+- const char *s = (void *)aux[1];
+- if (s[0]!='v' || s[1]!='6' || s[2]-'0'<10u) break;
+- SET(cas, v6);
+- SET(barrier, v6);
+- break;
+- }
+- } else {
+- int ver = *(int *)0xffff0ffc;
+- SET(gettp, kuser);
+- SET(cas, kuser);
+- SET(barrier, kuser);
+- if (ver < 2) a_crash();
+- if (ver < 3) SET(barrier, oldkuser);
+- }
+-#endif
+- return __syscall(0xf0005, p);
+-}
+--- a/arch/arm/src/arm/atomics.s
++++ /dev/null
+@@ -1,116 +0,0 @@
+-.text
+-
+-.global __a_barrier
+-.hidden __a_barrier
+-.type __a_barrier,%function
+-__a_barrier:
+- ldr ip,1f
+- ldr ip,[pc,ip]
+- add pc,pc,ip
+-1: .word __a_barrier_ptr-1b
+-.global __a_barrier_dummy
+-.hidden __a_barrier_dummy
+-__a_barrier_dummy:
+- tst lr,#1
+- moveq pc,lr
+- bx lr
+-.global __a_barrier_oldkuser
+-.hidden __a_barrier_oldkuser
+-__a_barrier_oldkuser:
+- push {r0,r1,r2,r3,ip,lr}
+- mov r1,r0
+- mov r2,sp
+- ldr ip,=0xffff0fc0
+- mov lr,pc
+- mov pc,ip
+- pop {r0,r1,r2,r3,ip,lr}
+- tst lr,#1
+- moveq pc,lr
+- bx lr
+-.global __a_barrier_v6
+-.hidden __a_barrier_v6
+-__a_barrier_v6:
+- mcr p15,0,r0,c7,c10,5
+- bx lr
+-.global __a_barrier_v7
+-.hidden __a_barrier_v7
+-__a_barrier_v7:
+- .word 0xf57ff05b /* dmb ish */
+- bx lr
+-
+-.global __a_cas
+-.hidden __a_cas
+-.type __a_cas,%function
+-__a_cas:
+- ldr ip,1f
+- ldr ip,[pc,ip]
+- add pc,pc,ip
+-1: .word __a_cas_ptr-1b
+-.global __a_cas_dummy
+-.hidden __a_cas_dummy
+-__a_cas_dummy:
+- mov r3,r0
+- ldr r0,[r2]
+- subs r0,r3,r0
+- streq r1,[r2]
+- tst lr,#1
+- moveq pc,lr
+- bx lr
+-.global __a_cas_v6
+-.hidden __a_cas_v6
+-__a_cas_v6:
+- mov r3,r0
+- mcr p15,0,r0,c7,c10,5
+-1: .word 0xe1920f9f /* ldrex r0,[r2] */
+- subs r0,r3,r0
+- .word 0x01820f91 /* strexeq r0,r1,[r2] */
+- teqeq r0,#1
+- beq 1b
+- mcr p15,0,r0,c7,c10,5
+- bx lr
+-.global __a_cas_v7
+-.hidden __a_cas_v7
+-__a_cas_v7:
+- mov r3,r0
+- .word 0xf57ff05b /* dmb ish */
+-1: .word 0xe1920f9f /* ldrex r0,[r2] */
+- subs r0,r3,r0
+- .word 0x01820f91 /* strexeq r0,r1,[r2] */
+- teqeq r0,#1
+- beq 1b
+- .word 0xf57ff05b /* dmb ish */
+- bx lr
+-
+-.global __aeabi_read_tp
+-.type __aeabi_read_tp,%function
+-__aeabi_read_tp:
+-
+-.global __a_gettp
+-.hidden __a_gettp
+-.type __a_gettp,%function
+-__a_gettp:
+- ldr r0,1f
+- ldr r0,[pc,r0]
+- add pc,pc,r0
+-1: .word __a_gettp_ptr-1b
+-.global __a_gettp_dummy
+-.hidden __a_gettp_dummy
+-__a_gettp_dummy:
+- mrc p15,0,r0,c13,c0,3
+- bx lr
+-
+-.data
+-.global __a_barrier_ptr
+-.hidden __a_barrier_ptr
+-__a_barrier_ptr:
+- .word 0
+-
+-.global __a_cas_ptr
+-.hidden __a_cas_ptr
+-__a_cas_ptr:
+- .word 0
+-
+-.global __a_gettp_ptr
+-.hidden __a_gettp_ptr
+-__a_gettp_ptr:
+- .word 0
+--- a/arch/arm/src/find_exidx.c
++++ /dev/null
+@@ -1,42 +0,0 @@
+-#define _GNU_SOURCE
+-#include <link.h>
+-#include <stdint.h>
+-
+-struct find_exidx_data {
+- uintptr_t pc, exidx_start;
+- int exidx_len;
+-};
+-
+-static int find_exidx(struct dl_phdr_info *info, size_t size, void *ptr)
+-{
+- struct find_exidx_data *data = ptr;
+- const ElfW(Phdr) *phdr = info->dlpi_phdr;
+- uintptr_t addr, exidx_start = 0;
+- int i, match = 0, exidx_len = 0;
+-
+- for (i = info->dlpi_phnum; i > 0; i--, phdr++) {
+- addr = info->dlpi_addr + phdr->p_vaddr;
+- switch (phdr->p_type) {
+- case PT_LOAD:
+- match |= data->pc >= addr && data->pc < addr + phdr->p_memsz;
+- break;
+- case PT_ARM_EXIDX:
+- exidx_start = addr;
+- exidx_len = phdr->p_memsz;
+- break;
+- }
+- }
+- data->exidx_start = exidx_start;
+- data->exidx_len = exidx_len;
+- return match;
+-}
+-
+-uintptr_t __gnu_Unwind_Find_exidx(uintptr_t pc, int *pcount)
+-{
+- struct find_exidx_data data;
+- data.pc = pc;
+- if (dl_iterate_phdr(find_exidx, &data) <= 0)
+- return 0;
+- *pcount = data.exidx_len / 8;
+- return data.exidx_start;
+-}
+--- /dev/null
++++ b/arch/generic/bits/errno.h
+@@ -0,0 +1,134 @@
++#define EPERM 1
++#define ENOENT 2
++#define ESRCH 3
++#define EINTR 4
++#define EIO 5
++#define ENXIO 6
++#define E2BIG 7
++#define ENOEXEC 8
++#define EBADF 9
++#define ECHILD 10
++#define EAGAIN 11
++#define ENOMEM 12
++#define EACCES 13
++#define EFAULT 14
++#define ENOTBLK 15
++#define EBUSY 16
++#define EEXIST 17
++#define EXDEV 18
++#define ENODEV 19
++#define ENOTDIR 20
++#define EISDIR 21
++#define EINVAL 22
++#define ENFILE 23
++#define EMFILE 24
++#define ENOTTY 25
++#define ETXTBSY 26
++#define EFBIG 27
++#define ENOSPC 28
++#define ESPIPE 29
++#define EROFS 30
++#define EMLINK 31
++#define EPIPE 32
++#define EDOM 33
++#define ERANGE 34
++#define EDEADLK 35
++#define ENAMETOOLONG 36
++#define ENOLCK 37
++#define ENOSYS 38
++#define ENOTEMPTY 39
++#define ELOOP 40
++#define EWOULDBLOCK EAGAIN
++#define ENOMSG 42
++#define EIDRM 43
++#define ECHRNG 44
++#define EL2NSYNC 45
++#define EL3HLT 46
++#define EL3RST 47
++#define ELNRNG 48
++#define EUNATCH 49
++#define ENOCSI 50
++#define EL2HLT 51
++#define EBADE 52
++#define EBADR 53
++#define EXFULL 54
++#define ENOANO 55
++#define EBADRQC 56
++#define EBADSLT 57
++#define EDEADLOCK EDEADLK
++#define EBFONT 59
++#define ENOSTR 60
++#define ENODATA 61
++#define ETIME 62
++#define ENOSR 63
++#define ENONET 64
++#define ENOPKG 65
++#define EREMOTE 66
++#define ENOLINK 67
++#define EADV 68
++#define ESRMNT 69
++#define ECOMM 70
++#define EPROTO 71
++#define EMULTIHOP 72
++#define EDOTDOT 73
++#define EBADMSG 74
++#define EOVERFLOW 75
++#define ENOTUNIQ 76
++#define EBADFD 77
++#define EREMCHG 78
++#define ELIBACC 79
++#define ELIBBAD 80
++#define ELIBSCN 81
++#define ELIBMAX 82
++#define ELIBEXEC 83
++#define EILSEQ 84
++#define ERESTART 85
++#define ESTRPIPE 86
++#define EUSERS 87
++#define ENOTSOCK 88
++#define EDESTADDRREQ 89
++#define EMSGSIZE 90
++#define EPROTOTYPE 91
++#define ENOPROTOOPT 92
++#define EPROTONOSUPPORT 93
++#define ESOCKTNOSUPPORT 94
++#define EOPNOTSUPP 95
++#define ENOTSUP EOPNOTSUPP
++#define EPFNOSUPPORT 96
++#define EAFNOSUPPORT 97
++#define EADDRINUSE 98
++#define EADDRNOTAVAIL 99
++#define ENETDOWN 100
++#define ENETUNREACH 101
++#define ENETRESET 102
++#define ECONNABORTED 103
++#define ECONNRESET 104
++#define ENOBUFS 105
++#define EISCONN 106
++#define ENOTCONN 107
++#define ESHUTDOWN 108
++#define ETOOMANYREFS 109
++#define ETIMEDOUT 110
++#define ECONNREFUSED 111
++#define EHOSTDOWN 112
++#define EHOSTUNREACH 113
++#define EALREADY 114
++#define EINPROGRESS 115
++#define ESTALE 116
++#define EUCLEAN 117
++#define ENOTNAM 118
++#define ENAVAIL 119
++#define EISNAM 120
++#define EREMOTEIO 121
++#define EDQUOT 122
++#define ENOMEDIUM 123
++#define EMEDIUMTYPE 124
++#define ECANCELED 125
++#define ENOKEY 126
++#define EKEYEXPIRED 127
++#define EKEYREVOKED 128
++#define EKEYREJECTED 129
++#define EOWNERDEAD 130
++#define ENOTRECOVERABLE 131
++#define ERFKILL 132
++#define EHWPOISON 133
+--- /dev/null
++++ b/arch/generic/bits/fcntl.h
+@@ -0,0 +1,40 @@
++#define O_CREAT 0100
++#define O_EXCL 0200
++#define O_NOCTTY 0400
++#define O_TRUNC 01000
++#define O_APPEND 02000
++#define O_NONBLOCK 04000
++#define O_DSYNC 010000
++#define O_SYNC 04010000
++#define O_RSYNC 04010000
++#define O_DIRECTORY 0200000
++#define O_NOFOLLOW 0400000
++#define O_CLOEXEC 02000000
++
++#define O_ASYNC 020000
++#define O_DIRECT 040000
++#define O_LARGEFILE 0100000
++#define O_NOATIME 01000000
++#define O_PATH 010000000
++#define O_TMPFILE 020200000
++#define O_NDELAY O_NONBLOCK
++
++#define F_DUPFD 0
++#define F_GETFD 1
++#define F_SETFD 2
++#define F_GETFL 3
++#define F_SETFL 4
++
++#define F_SETOWN 8
++#define F_GETOWN 9
++#define F_SETSIG 10
++#define F_GETSIG 11
++
++#define F_GETLK 12
++#define F_SETLK 13
++#define F_SETLKW 14
++
++#define F_SETOWN_EX 15
++#define F_GETOWN_EX 16
++
++#define F_GETOWNER_UIDS 17
+--- /dev/null
++++ b/arch/generic/bits/fenv.h
+@@ -0,0 +1,10 @@
++#define FE_ALL_EXCEPT 0
++#define FE_TONEAREST 0
++
++typedef unsigned long fexcept_t;
++
++typedef struct {
++ unsigned long __cw;
++} fenv_t;
++
++#define FE_DFL_ENV ((const fenv_t *) -1)
+--- /dev/null
++++ b/arch/generic/bits/ioctl.h
+@@ -0,0 +1,197 @@
++#define _IOC(a,b,c,d) ( ((a)<<30) | ((b)<<8) | (c) | ((d)<<16) )
++#define _IOC_NONE 0U
++#define _IOC_WRITE 1U
++#define _IOC_READ 2U
++
++#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
++#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
++#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
++#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
++
++#define TCGETS 0x5401
++#define TCSETS 0x5402
++#define TCSETSW 0x5403
++#define TCSETSF 0x5404
++#define TCGETA 0x5405
++#define TCSETA 0x5406
++#define TCSETAW 0x5407
++#define TCSETAF 0x5408
++#define TCSBRK 0x5409
++#define TCXONC 0x540A
++#define TCFLSH 0x540B
++#define TIOCEXCL 0x540C
++#define TIOCNXCL 0x540D
++#define TIOCSCTTY 0x540E
++#define TIOCGPGRP 0x540F
++#define TIOCSPGRP 0x5410
++#define TIOCOUTQ 0x5411
++#define TIOCSTI 0x5412
++#define TIOCGWINSZ 0x5413
++#define TIOCSWINSZ 0x5414
++#define TIOCMGET 0x5415
++#define TIOCMBIS 0x5416
++#define TIOCMBIC 0x5417
++#define TIOCMSET 0x5418
++#define TIOCGSOFTCAR 0x5419
++#define TIOCSSOFTCAR 0x541A
++#define FIONREAD 0x541B
++#define TIOCINQ FIONREAD
++#define TIOCLINUX 0x541C
++#define TIOCCONS 0x541D
++#define TIOCGSERIAL 0x541E
++#define TIOCSSERIAL 0x541F
++#define TIOCPKT 0x5420
++#define FIONBIO 0x5421
++#define TIOCNOTTY 0x5422
++#define TIOCSETD 0x5423
++#define TIOCGETD 0x5424
++#define TCSBRKP 0x5425
++#define TIOCTTYGSTRUCT 0x5426
++#define TIOCSBRK 0x5427
++#define TIOCCBRK 0x5428
++#define TIOCGSID 0x5429
++#define TIOCGPTN 0x80045430
++#define TIOCSPTLCK 0x40045431
++#define TCGETX 0x5432
++#define TCSETX 0x5433
++#define TCSETXF 0x5434
++#define TCSETXW 0x5435
++
++#define FIONCLEX 0x5450
++#define FIOCLEX 0x5451
++#define FIOASYNC 0x5452
++#define TIOCSERCONFIG 0x5453
++#define TIOCSERGWILD 0x5454
++#define TIOCSERSWILD 0x5455
++#define TIOCGLCKTRMIOS 0x5456
++#define TIOCSLCKTRMIOS 0x5457
++#define TIOCSERGSTRUCT 0x5458
++#define TIOCSERGETLSR 0x5459
++#define TIOCSERGETMULTI 0x545A
++#define TIOCSERSETMULTI 0x545B
++
++#define TIOCMIWAIT 0x545C
++#define TIOCGICOUNT 0x545D
++#define TIOCGHAYESESP 0x545E
++#define TIOCSHAYESESP 0x545F
++#define FIOQSIZE 0x5460
++
++#define TIOCPKT_DATA 0
++#define TIOCPKT_FLUSHREAD 1
++#define TIOCPKT_FLUSHWRITE 2
++#define TIOCPKT_STOP 4
++#define TIOCPKT_START 8
++#define TIOCPKT_NOSTOP 16
++#define TIOCPKT_DOSTOP 32
++#define TIOCPKT_IOCTL 64
++
++#define TIOCSER_TEMT 0x01
++
++struct winsize {
++ unsigned short ws_row;
++ unsigned short ws_col;
++ unsigned short ws_xpixel;
++ unsigned short ws_ypixel;
++};
++
++#define TIOCM_LE 0x001
++#define TIOCM_DTR 0x002
++#define TIOCM_RTS 0x004
++#define TIOCM_ST 0x008
++#define TIOCM_SR 0x010
++#define TIOCM_CTS 0x020
++#define TIOCM_CAR 0x040
++#define TIOCM_RNG 0x080
++#define TIOCM_DSR 0x100
++#define TIOCM_CD TIOCM_CAR
++#define TIOCM_RI TIOCM_RNG
++#define TIOCM_OUT1 0x2000
++#define TIOCM_OUT2 0x4000
++#define TIOCM_LOOP 0x8000
++#define TIOCM_MODEM_BITS TIOCM_OUT2
++
++#define N_TTY 0
++#define N_SLIP 1
++#define N_MOUSE 2
++#define N_PPP 3
++#define N_STRIP 4
++#define N_AX25 5
++#define N_X25 6
++#define N_6PACK 7
++#define N_MASC 8
++#define N_R3964 9
++#define N_PROFIBUS_FDL 10
++#define N_IRDA 11
++#define N_SMSBLOCK 12
++#define N_HDLC 13
++#define N_SYNC_PPP 14
++#define N_HCI 15
++
++#define FIOSETOWN 0x8901
++#define SIOCSPGRP 0x8902
++#define FIOGETOWN 0x8903
++#define SIOCGPGRP 0x8904
++#define SIOCATMARK 0x8905
++#define SIOCGSTAMP 0x8906
++
++#define SIOCADDRT 0x890B
++#define SIOCDELRT 0x890C
++#define SIOCRTMSG 0x890D
++
++#define SIOCGIFNAME 0x8910
++#define SIOCSIFLINK 0x8911
++#define SIOCGIFCONF 0x8912
++#define SIOCGIFFLAGS 0x8913
++#define SIOCSIFFLAGS 0x8914
++#define SIOCGIFADDR 0x8915
++#define SIOCSIFADDR 0x8916
++#define SIOCGIFDSTADDR 0x8917
++#define SIOCSIFDSTADDR 0x8918
++#define SIOCGIFBRDADDR 0x8919
++#define SIOCSIFBRDADDR 0x891a
++#define SIOCGIFNETMASK 0x891b
++#define SIOCSIFNETMASK 0x891c
++#define SIOCGIFMETRIC 0x891d
++#define SIOCSIFMETRIC 0x891e
++#define SIOCGIFMEM 0x891f
++#define SIOCSIFMEM 0x8920
++#define SIOCGIFMTU 0x8921
++#define SIOCSIFMTU 0x8922
++#define SIOCSIFHWADDR 0x8924
++#define SIOCGIFENCAP 0x8925
++#define SIOCSIFENCAP 0x8926
++#define SIOCGIFHWADDR 0x8927
++#define SIOCGIFSLAVE 0x8929
++#define SIOCSIFSLAVE 0x8930
++#define SIOCADDMULTI 0x8931
++#define SIOCDELMULTI 0x8932
++#define SIOCGIFINDEX 0x8933
++#define SIOGIFINDEX SIOCGIFINDEX
++#define SIOCSIFPFLAGS 0x8934
++#define SIOCGIFPFLAGS 0x8935
++#define SIOCDIFADDR 0x8936
++#define SIOCSIFHWBROADCAST 0x8937
++#define SIOCGIFCOUNT 0x8938
++
++#define SIOCGIFBR 0x8940
++#define SIOCSIFBR 0x8941
++
++#define SIOCGIFTXQLEN 0x8942
++#define SIOCSIFTXQLEN 0x8943
++
++#define SIOCDARP 0x8953
++#define SIOCGARP 0x8954
++#define SIOCSARP 0x8955
++
++#define SIOCDRARP 0x8960
++#define SIOCGRARP 0x8961
++#define SIOCSRARP 0x8962
++
++#define SIOCGIFMAP 0x8970
++#define SIOCSIFMAP 0x8971
++
++#define SIOCADDDLCI 0x8980
++#define SIOCDELDLCI 0x8981
++
++#define SIOCDEVPRIVATE 0x89F0
++#define SIOCPROTOPRIVATE 0x89E0
+--- /dev/null
++++ b/arch/generic/bits/ipc.h
+@@ -0,0 +1,14 @@
++struct ipc_perm
++{
++ key_t __ipc_perm_key;
++ uid_t uid;
++ gid_t gid;
++ uid_t cuid;
++ gid_t cgid;
++ mode_t mode;
++ int __ipc_perm_seq;
++ long __pad1;
++ long __pad2;
++};
++
++#define IPC_64 0x100
+--- /dev/null
++++ b/arch/generic/bits/msg.h
+@@ -0,0 +1,16 @@
++struct msqid_ds
++{
++ struct ipc_perm msg_perm;
++ time_t msg_stime;
++ int __unused1;
++ time_t msg_rtime;
++ int __unused2;
++ time_t msg_ctime;
++ int __unused3;
++ unsigned long msg_cbytes;
++ msgqnum_t msg_qnum;
++ msglen_t msg_qbytes;
++ pid_t msg_lspid;
++ pid_t msg_lrpid;
++ unsigned long __unused[2];
++};
+--- /dev/null
++++ b/arch/generic/bits/sem.h
+@@ -0,0 +1,16 @@
++struct semid_ds {
++ struct ipc_perm sem_perm;
++ time_t sem_otime;
++ time_t __unused1;
++ time_t sem_ctime;
++ time_t __unused2;
++#if __BYTE_ORDER == __LITTLE_ENDIAN
++ unsigned short sem_nsems;
++ char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
++#else
++ char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
++ unsigned short sem_nsems;
++#endif
++ time_t __unused3;
++ time_t __unused4;
++};
+--- /dev/null
++++ b/arch/generic/bits/shm.h
+@@ -0,0 +1,29 @@
++#define SHMLBA 4096
++
++struct shmid_ds
++{
++ struct ipc_perm shm_perm;
++ size_t shm_segsz;
++ time_t shm_atime;
++ int __unused1;
++ time_t shm_dtime;
++ int __unused2;
++ time_t shm_ctime;
++ int __unused3;
++ pid_t shm_cpid;
++ pid_t shm_lpid;
++ unsigned long shm_nattch;
++ unsigned long __pad1;
++ unsigned long __pad2;
++};
++
++struct shminfo {
++ unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
++};
++
++struct shm_info {
++ int __used_ids;
++ unsigned long shm_tot, shm_rss, shm_swp;
++ unsigned long __swap_attempts, __swap_successes;
++};
++
+--- /dev/null
++++ b/arch/generic/bits/socket.h
+@@ -0,0 +1,17 @@
++struct msghdr
++{
++ void *msg_name;
++ socklen_t msg_namelen;
++ struct iovec *msg_iov;
++ int msg_iovlen;
++ void *msg_control;
++ socklen_t msg_controllen;
++ int msg_flags;
++};
++
++struct cmsghdr
++{
++ socklen_t cmsg_len;
++ int cmsg_level;
++ int cmsg_type;
++};
+--- /dev/null
++++ b/arch/generic/bits/statfs.h
+@@ -0,0 +1,7 @@
++struct statfs {
++ unsigned long f_type, f_bsize;
++ fsblkcnt_t f_blocks, f_bfree, f_bavail;
++ fsfilcnt_t f_files, f_ffree;
++ fsid_t f_fsid;
++ unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
++};
+--- /dev/null
++++ b/arch/generic/bits/stdarg.h
+@@ -0,0 +1,4 @@
++#define va_start(v,l) __builtin_va_start(v,l)
++#define va_end(v) __builtin_va_end(v)
++#define va_arg(v,l) __builtin_va_arg(v,l)
++#define va_copy(d,s) __builtin_va_copy(d,s)
+--- /dev/null
++++ b/arch/generic/bits/termios.h
+@@ -0,0 +1,160 @@
++struct termios
++{
++ tcflag_t c_iflag;
++ tcflag_t c_oflag;
++ tcflag_t c_cflag;
++ tcflag_t c_lflag;
++ cc_t c_line;
++ cc_t c_cc[NCCS];
++ speed_t __c_ispeed;
++ speed_t __c_ospeed;
++};
++
++#define VINTR 0
++#define VQUIT 1
++#define VERASE 2
++#define VKILL 3
++#define VEOF 4
++#define VTIME 5
++#define VMIN 6
++#define VSWTC 7
++#define VSTART 8
++#define VSTOP 9
++#define VSUSP 10
++#define VEOL 11
++#define VREPRINT 12
++#define VDISCARD 13
++#define VWERASE 14
++#define VLNEXT 15
++#define VEOL2 16
++
++#define IGNBRK 0000001
++#define BRKINT 0000002
++#define IGNPAR 0000004
++#define PARMRK 0000010
++#define INPCK 0000020
++#define ISTRIP 0000040
++#define INLCR 0000100
++#define IGNCR 0000200
++#define ICRNL 0000400
++#define IUCLC 0001000
++#define IXON 0002000
++#define IXANY 0004000
++#define IXOFF 0010000
++#define IMAXBEL 0020000
++#define IUTF8 0040000
++
++#define OPOST 0000001
++#define OLCUC 0000002
++#define ONLCR 0000004
++#define OCRNL 0000010
++#define ONOCR 0000020
++#define ONLRET 0000040
++#define OFILL 0000100
++#define OFDEL 0000200
++#define NLDLY 0000400
++#define NL0 0000000
++#define NL1 0000400
++#define CRDLY 0003000
++#define CR0 0000000
++#define CR1 0001000
++#define CR2 0002000
++#define CR3 0003000
++#define TABDLY 0014000
++#define TAB0 0000000
++#define TAB1 0004000
++#define TAB2 0010000
++#define TAB3 0014000
++#define BSDLY 0020000
++#define BS0 0000000
++#define BS1 0020000
++#define FFDLY 0100000
++#define FF0 0000000
++#define FF1 0100000
++
++#define VTDLY 0040000
++#define VT0 0000000
++#define VT1 0040000
++
++#define B0 0000000
++#define B50 0000001
++#define B75 0000002
++#define B110 0000003
++#define B134 0000004
++#define B150 0000005
++#define B200 0000006
++#define B300 0000007
++#define B600 0000010
++#define B1200 0000011
++#define B1800 0000012
++#define B2400 0000013
++#define B4800 0000014
++#define B9600 0000015
++#define B19200 0000016
++#define B38400 0000017
++
++#define B57600 0010001
++#define B115200 0010002
++#define B230400 0010003
++#define B460800 0010004
++#define B500000 0010005
++#define B576000 0010006
++#define B921600 0010007
++#define B1000000 0010010
++#define B1152000 0010011
++#define B1500000 0010012
++#define B2000000 0010013
++#define B2500000 0010014
++#define B3000000 0010015
++#define B3500000 0010016
++#define B4000000 0010017
++
++#define CBAUD 0010017
++
++#define CSIZE 0000060
++#define CS5 0000000
++#define CS6 0000020
++#define CS7 0000040
++#define CS8 0000060
++#define CSTOPB 0000100
++#define CREAD 0000200
++#define PARENB 0000400
++#define PARODD 0001000
++#define HUPCL 0002000
++#define CLOCAL 0004000
++
++#define ISIG 0000001
++#define ICANON 0000002
++#define ECHO 0000010
++#define ECHOE 0000020
++#define ECHOK 0000040
++#define ECHONL 0000100
++#define NOFLSH 0000200
++#define TOSTOP 0000400
++#define IEXTEN 0100000
++
++#define ECHOCTL 0001000
++#define ECHOPRT 0002000
++#define ECHOKE 0004000
++#define FLUSHO 0010000
++#define PENDIN 0040000
++
++#define TCOOFF 0
++#define TCOON 1
++#define TCIOFF 2
++#define TCION 3
++
++#define TCIFLUSH 0
++#define TCOFLUSH 1
++#define TCIOFLUSH 2
++
++#define TCSANOW 0
++#define TCSADRAIN 1
++#define TCSAFLUSH 2
++
++#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
++#define CBAUDEX 0010000
++#define CRTSCTS 020000000000
++#define EXTPROC 0200000
++#define XTABS 0014000
++#endif
+--- a/arch/i386/atomic.h
++++ /dev/null
+@@ -1,110 +0,0 @@
+-#ifndef _INTERNAL_ATOMIC_H
+-#define _INTERNAL_ATOMIC_H
+-
+-#include <stdint.h>
+-
+-static inline int a_ctz_64(uint64_t x)
+-{
+- int r;
+- __asm__( "bsf %1,%0 ; jnz 1f ; bsf %2,%0 ; addl $32,%0\n1:"
+- : "=&r"(r) : "r"((unsigned)x), "r"((unsigned)(x>>32)) );
+- return r;
+-}
+-
+-static inline int a_ctz_l(unsigned long x)
+-{
+- long r;
+- __asm__( "bsf %1,%0" : "=r"(r) : "r"(x) );
+- return r;
+-}
+-
+-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+-{
+- __asm__( "lock ; andl %1, (%0) ; lock ; andl %2, 4(%0)"
+- : : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) : "memory" );
+-}
+-
+-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+-{
+- __asm__( "lock ; orl %1, (%0) ; lock ; orl %2, 4(%0)"
+- : : "r"((long *)p), "r"((unsigned)v), "r"((unsigned)(v>>32)) : "memory" );
+-}
+-
+-static inline void a_or_l(volatile void *p, long v)
+-{
+- __asm__( "lock ; orl %1, %0"
+- : "=m"(*(long *)p) : "r"(v) : "memory" );
+-}
+-
+-static inline void *a_cas_p(volatile void *p, void *t, void *s)
+-{
+- __asm__( "lock ; cmpxchg %3, %1"
+- : "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s) : "memory" );
+- return t;
+-}
+-
+-static inline int a_cas(volatile int *p, int t, int s)
+-{
+- __asm__( "lock ; cmpxchg %3, %1"
+- : "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
+- return t;
+-}
+-
+-static inline void a_or(volatile int *p, int v)
+-{
+- __asm__( "lock ; orl %1, %0"
+- : "=m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline void a_and(volatile int *p, int v)
+-{
+- __asm__( "lock ; andl %1, %0"
+- : "=m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline int a_swap(volatile int *x, int v)
+-{
+- __asm__( "xchg %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
+- return v;
+-}
+-
+-#define a_xchg a_swap
+-
+-static inline int a_fetch_add(volatile int *x, int v)
+-{
+- __asm__( "lock ; xadd %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
+- return v;
+-}
+-
+-static inline void a_inc(volatile int *x)
+-{
+- __asm__( "lock ; incl %0" : "=m"(*x) : "m"(*x) : "memory" );
+-}
+-
+-static inline void a_dec(volatile int *x)
+-{
+- __asm__( "lock ; decl %0" : "=m"(*x) : "m"(*x) : "memory" );
+-}
+-
+-static inline void a_store(volatile int *p, int x)
+-{
+- __asm__( "movl %1, %0 ; lock ; orl $0,(%%esp)" : "=m"(*p) : "r"(x) : "memory" );
+-}
+-
+-static inline void a_spin()
+-{
+- __asm__ __volatile__( "pause" : : : "memory" );
+-}
+-
+-static inline void a_barrier()
+-{
+- __asm__ __volatile__( "" : : : "memory" );
+-}
+-
+-static inline void a_crash()
+-{
+- __asm__ __volatile__( "hlt" : : : "memory" );
+-}
+-
+-
+-#endif
+--- /dev/null
++++ b/arch/i386/atomic_arch.h
+@@ -0,0 +1,101 @@
++#define a_cas a_cas
++static inline int a_cas(volatile int *p, int t, int s)
++{
++ __asm__ __volatile__ (
++ "lock ; cmpxchg %3, %1"
++ : "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
++ return t;
++}
++
++#define a_swap a_swap
++static inline int a_swap(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "xchg %0, %1"
++ : "=r"(v), "=m"(*p) : "0"(v) : "memory" );
++ return v;
++}
++
++#define a_fetch_add a_fetch_add
++static inline int a_fetch_add(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "lock ; xadd %0, %1"
++ : "=r"(v), "=m"(*p) : "0"(v) : "memory" );
++ return v;
++}
++
++#define a_and a_and
++static inline void a_and(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "lock ; and %1, %0"
++ : "=m"(*p) : "r"(v) : "memory" );
++}
++
++#define a_or a_or
++static inline void a_or(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "lock ; or %1, %0"
++ : "=m"(*p) : "r"(v) : "memory" );
++}
++
++#define a_inc a_inc
++static inline void a_inc(volatile int *p)
++{
++ __asm__ __volatile__(
++ "lock ; incl %0"
++ : "=m"(*p) : "m"(*p) : "memory" );
++}
++
++#define a_dec a_dec
++static inline void a_dec(volatile int *p)
++{
++ __asm__ __volatile__(
++ "lock ; decl %0"
++ : "=m"(*p) : "m"(*p) : "memory" );
++}
++
++#define a_store a_store
++static inline void a_store(volatile int *p, int x)
++{
++ __asm__ __volatile__(
++ "mov %1, %0 ; lock ; orl $0,(%%esp)"
++ : "=m"(*p) : "r"(x) : "memory" );
++}
++
++#define a_barrier a_barrier
++static inline void a_barrier()
++{
++ __asm__ __volatile__( "" : : : "memory" );
++}
++
++#define a_pause a_pause
++static inline void a_spin()
++{
++ __asm__ __volatile__( "pause" : : : "memory" );
++}
++
++#define a_crash a_crash
++static inline void a_crash()
++{
++ __asm__ __volatile__( "hlt" : : : "memory" );
++}
++
++#define a_ctz_64 a_ctz_64
++static inline int a_ctz_64(uint64_t x)
++{
++ int r;
++ __asm__( "bsf %1,%0 ; jnz 1f ; bsf %2,%0 ; add $32,%0\n1:"
++ : "=&r"(r) : "r"((unsigned)x), "r"((unsigned)(x>>32)) );
++ return r;
++}
++
++#define a_ctz_l a_ctz_l
++static inline int a_ctz_l(unsigned long x)
++{
++ long r;
++ __asm__( "bsf %1,%0" : "=r"(r) : "r"(x) );
++ return r;
++}
+--- a/arch/i386/bits/alltypes.h.in
++++ b/arch/i386/bits/alltypes.h.in
+@@ -26,10 +26,12 @@ TYPEDEF long double float_t;
+ TYPEDEF long double double_t;
+ #endif
+
+-#ifdef __cplusplus
+-TYPEDEF struct { alignas(8) long long __ll; long double __ld; } max_align_t;
+-#else
++#if !defined(__cplusplus)
+ TYPEDEF struct { _Alignas(8) long long __ll; long double __ld; } max_align_t;
++#elif defined(__GNUC__)
++TYPEDEF struct { __attribute__((__aligned__(8))) long long __ll; long double __ld; } max_align_t;
++#else
++TYPEDEF struct { alignas(8) long long __ll; long double __ld; } max_align_t;
+ #endif
+
+ TYPEDEF long time_t;
+--- a/arch/i386/bits/errno.h
++++ /dev/null
+@@ -1,134 +0,0 @@
+-#define EPERM 1
+-#define ENOENT 2
+-#define ESRCH 3
+-#define EINTR 4
+-#define EIO 5
+-#define ENXIO 6
+-#define E2BIG 7
+-#define ENOEXEC 8
+-#define EBADF 9
+-#define ECHILD 10
+-#define EAGAIN 11
+-#define ENOMEM 12
+-#define EACCES 13
+-#define EFAULT 14
+-#define ENOTBLK 15
+-#define EBUSY 16
+-#define EEXIST 17
+-#define EXDEV 18
+-#define ENODEV 19
+-#define ENOTDIR 20
+-#define EISDIR 21
+-#define EINVAL 22
+-#define ENFILE 23
+-#define EMFILE 24
+-#define ENOTTY 25
+-#define ETXTBSY 26
+-#define EFBIG 27
+-#define ENOSPC 28
+-#define ESPIPE 29
+-#define EROFS 30
+-#define EMLINK 31
+-#define EPIPE 32
+-#define EDOM 33
+-#define ERANGE 34
+-#define EDEADLK 35
+-#define ENAMETOOLONG 36
+-#define ENOLCK 37
+-#define ENOSYS 38
+-#define ENOTEMPTY 39
+-#define ELOOP 40
+-#define EWOULDBLOCK EAGAIN
+-#define ENOMSG 42
+-#define EIDRM 43
+-#define ECHRNG 44
+-#define EL2NSYNC 45
+-#define EL3HLT 46
+-#define EL3RST 47
+-#define ELNRNG 48
+-#define EUNATCH 49
+-#define ENOCSI 50
+-#define EL2HLT 51
+-#define EBADE 52
+-#define EBADR 53
+-#define EXFULL 54
+-#define ENOANO 55
+-#define EBADRQC 56
+-#define EBADSLT 57
+-#define EDEADLOCK EDEADLK
+-#define EBFONT 59
+-#define ENOSTR 60
+-#define ENODATA 61
+-#define ETIME 62
+-#define ENOSR 63
+-#define ENONET 64
+-#define ENOPKG 65
+-#define EREMOTE 66
+-#define ENOLINK 67
+-#define EADV 68
+-#define ESRMNT 69
+-#define ECOMM 70
+-#define EPROTO 71
+-#define EMULTIHOP 72
+-#define EDOTDOT 73
+-#define EBADMSG 74
+-#define EOVERFLOW 75
+-#define ENOTUNIQ 76
+-#define EBADFD 77
+-#define EREMCHG 78
+-#define ELIBACC 79
+-#define ELIBBAD 80
+-#define ELIBSCN 81
+-#define ELIBMAX 82
+-#define ELIBEXEC 83
+-#define EILSEQ 84
+-#define ERESTART 85
+-#define ESTRPIPE 86
+-#define EUSERS 87
+-#define ENOTSOCK 88
+-#define EDESTADDRREQ 89
+-#define EMSGSIZE 90
+-#define EPROTOTYPE 91
+-#define ENOPROTOOPT 92
+-#define EPROTONOSUPPORT 93
+-#define ESOCKTNOSUPPORT 94
+-#define EOPNOTSUPP 95
+-#define ENOTSUP EOPNOTSUPP
+-#define EPFNOSUPPORT 96
+-#define EAFNOSUPPORT 97
+-#define EADDRINUSE 98
+-#define EADDRNOTAVAIL 99
+-#define ENETDOWN 100
+-#define ENETUNREACH 101
+-#define ENETRESET 102
+-#define ECONNABORTED 103
+-#define ECONNRESET 104
+-#define ENOBUFS 105
+-#define EISCONN 106
+-#define ENOTCONN 107
+-#define ESHUTDOWN 108
+-#define ETOOMANYREFS 109
+-#define ETIMEDOUT 110
+-#define ECONNREFUSED 111
+-#define EHOSTDOWN 112
+-#define EHOSTUNREACH 113
+-#define EALREADY 114
+-#define EINPROGRESS 115
+-#define ESTALE 116
+-#define EUCLEAN 117
+-#define ENOTNAM 118
+-#define ENAVAIL 119
+-#define EISNAM 120
+-#define EREMOTEIO 121
+-#define EDQUOT 122
+-#define ENOMEDIUM 123
+-#define EMEDIUMTYPE 124
+-#define ECANCELED 125
+-#define ENOKEY 126
+-#define EKEYEXPIRED 127
+-#define EKEYREVOKED 128
+-#define EKEYREJECTED 129
+-#define EOWNERDEAD 130
+-#define ENOTRECOVERABLE 131
+-#define ERFKILL 132
+-#define EHWPOISON 133
+--- a/arch/i386/bits/fcntl.h
++++ /dev/null
+@@ -1,40 +0,0 @@
+-#define O_CREAT 0100
+-#define O_EXCL 0200
+-#define O_NOCTTY 0400
+-#define O_TRUNC 01000
+-#define O_APPEND 02000
+-#define O_NONBLOCK 04000
+-#define O_DSYNC 010000
+-#define O_SYNC 04010000
+-#define O_RSYNC 04010000
+-#define O_DIRECTORY 0200000
+-#define O_NOFOLLOW 0400000
+-#define O_CLOEXEC 02000000
+-
+-#define O_ASYNC 020000
+-#define O_DIRECT 040000
+-#define O_LARGEFILE 0100000
+-#define O_NOATIME 01000000
+-#define O_PATH 010000000
+-#define O_TMPFILE 020200000
+-#define O_NDELAY O_NONBLOCK
+-
+-#define F_DUPFD 0
+-#define F_GETFD 1
+-#define F_SETFD 2
+-#define F_GETFL 3
+-#define F_SETFL 4
+-
+-#define F_SETOWN 8
+-#define F_GETOWN 9
+-#define F_SETSIG 10
+-#define F_GETSIG 11
+-
+-#define F_GETLK 12
+-#define F_SETLK 13
+-#define F_SETLKW 14
+-
+-#define F_SETOWN_EX 15
+-#define F_GETOWN_EX 16
+-
+-#define F_GETOWNER_UIDS 17
+--- a/arch/i386/bits/ioctl.h
++++ /dev/null
+@@ -1,197 +0,0 @@
+-#define _IOC(a,b,c,d) ( ((a)<<30) | ((b)<<8) | (c) | ((d)<<16) )
+-#define _IOC_NONE 0U
+-#define _IOC_WRITE 1U
+-#define _IOC_READ 2U
+-
+-#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
+-#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
+-#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
+-#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
+-
+-#define TCGETS 0x5401
+-#define TCSETS 0x5402
+-#define TCSETSW 0x5403
+-#define TCSETSF 0x5404
+-#define TCGETA 0x5405
+-#define TCSETA 0x5406
+-#define TCSETAW 0x5407
+-#define TCSETAF 0x5408
+-#define TCSBRK 0x5409
+-#define TCXONC 0x540A
+-#define TCFLSH 0x540B
+-#define TIOCEXCL 0x540C
+-#define TIOCNXCL 0x540D
+-#define TIOCSCTTY 0x540E
+-#define TIOCGPGRP 0x540F
+-#define TIOCSPGRP 0x5410
+-#define TIOCOUTQ 0x5411
+-#define TIOCSTI 0x5412
+-#define TIOCGWINSZ 0x5413
+-#define TIOCSWINSZ 0x5414
+-#define TIOCMGET 0x5415
+-#define TIOCMBIS 0x5416
+-#define TIOCMBIC 0x5417
+-#define TIOCMSET 0x5418
+-#define TIOCGSOFTCAR 0x5419
+-#define TIOCSSOFTCAR 0x541A
+-#define FIONREAD 0x541B
+-#define TIOCINQ FIONREAD
+-#define TIOCLINUX 0x541C
+-#define TIOCCONS 0x541D
+-#define TIOCGSERIAL 0x541E
+-#define TIOCSSERIAL 0x541F
+-#define TIOCPKT 0x5420
+-#define FIONBIO 0x5421
+-#define TIOCNOTTY 0x5422
+-#define TIOCSETD 0x5423
+-#define TIOCGETD 0x5424
+-#define TCSBRKP 0x5425
+-#define TIOCTTYGSTRUCT 0x5426
+-#define TIOCSBRK 0x5427
+-#define TIOCCBRK 0x5428
+-#define TIOCGSID 0x5429
+-#define TIOCGPTN 0x80045430
+-#define TIOCSPTLCK 0x40045431
+-#define TCGETX 0x5432
+-#define TCSETX 0x5433
+-#define TCSETXF 0x5434
+-#define TCSETXW 0x5435
+-
+-#define FIONCLEX 0x5450
+-#define FIOCLEX 0x5451
+-#define FIOASYNC 0x5452
+-#define TIOCSERCONFIG 0x5453
+-#define TIOCSERGWILD 0x5454
+-#define TIOCSERSWILD 0x5455
+-#define TIOCGLCKTRMIOS 0x5456
+-#define TIOCSLCKTRMIOS 0x5457
+-#define TIOCSERGSTRUCT 0x5458
+-#define TIOCSERGETLSR 0x5459
+-#define TIOCSERGETMULTI 0x545A
+-#define TIOCSERSETMULTI 0x545B
+-
+-#define TIOCMIWAIT 0x545C
+-#define TIOCGICOUNT 0x545D
+-#define TIOCGHAYESESP 0x545E
+-#define TIOCSHAYESESP 0x545F
+-#define FIOQSIZE 0x5460
+-
+-#define TIOCPKT_DATA 0
+-#define TIOCPKT_FLUSHREAD 1
+-#define TIOCPKT_FLUSHWRITE 2
+-#define TIOCPKT_STOP 4
+-#define TIOCPKT_START 8
+-#define TIOCPKT_NOSTOP 16
+-#define TIOCPKT_DOSTOP 32
+-#define TIOCPKT_IOCTL 64
+-
+-#define TIOCSER_TEMT 0x01
+-
+-struct winsize {
+- unsigned short ws_row;
+- unsigned short ws_col;
+- unsigned short ws_xpixel;
+- unsigned short ws_ypixel;
+-};
+-
+-#define TIOCM_LE 0x001
+-#define TIOCM_DTR 0x002
+-#define TIOCM_RTS 0x004
+-#define TIOCM_ST 0x008
+-#define TIOCM_SR 0x010
+-#define TIOCM_CTS 0x020
+-#define TIOCM_CAR 0x040
+-#define TIOCM_RNG 0x080
+-#define TIOCM_DSR 0x100
+-#define TIOCM_CD TIOCM_CAR
+-#define TIOCM_RI TIOCM_RNG
+-#define TIOCM_OUT1 0x2000
+-#define TIOCM_OUT2 0x4000
+-#define TIOCM_LOOP 0x8000
+-#define TIOCM_MODEM_BITS TIOCM_OUT2
+-
+-#define N_TTY 0
+-#define N_SLIP 1
+-#define N_MOUSE 2
+-#define N_PPP 3
+-#define N_STRIP 4
+-#define N_AX25 5
+-#define N_X25 6
+-#define N_6PACK 7
+-#define N_MASC 8
+-#define N_R3964 9
+-#define N_PROFIBUS_FDL 10
+-#define N_IRDA 11
+-#define N_SMSBLOCK 12
+-#define N_HDLC 13
+-#define N_SYNC_PPP 14
+-#define N_HCI 15
+-
+-#define FIOSETOWN 0x8901
+-#define SIOCSPGRP 0x8902
+-#define FIOGETOWN 0x8903
+-#define SIOCGPGRP 0x8904
+-#define SIOCATMARK 0x8905
+-#define SIOCGSTAMP 0x8906
+-
+-#define SIOCADDRT 0x890B
+-#define SIOCDELRT 0x890C
+-#define SIOCRTMSG 0x890D
+-
+-#define SIOCGIFNAME 0x8910
+-#define SIOCSIFLINK 0x8911
+-#define SIOCGIFCONF 0x8912
+-#define SIOCGIFFLAGS 0x8913
+-#define SIOCSIFFLAGS 0x8914
+-#define SIOCGIFADDR 0x8915
+-#define SIOCSIFADDR 0x8916
+-#define SIOCGIFDSTADDR 0x8917
+-#define SIOCSIFDSTADDR 0x8918
+-#define SIOCGIFBRDADDR 0x8919
+-#define SIOCSIFBRDADDR 0x891a
+-#define SIOCGIFNETMASK 0x891b
+-#define SIOCSIFNETMASK 0x891c
+-#define SIOCGIFMETRIC 0x891d
+-#define SIOCSIFMETRIC 0x891e
+-#define SIOCGIFMEM 0x891f
+-#define SIOCSIFMEM 0x8920
+-#define SIOCGIFMTU 0x8921
+-#define SIOCSIFMTU 0x8922
+-#define SIOCSIFHWADDR 0x8924
+-#define SIOCGIFENCAP 0x8925
+-#define SIOCSIFENCAP 0x8926
+-#define SIOCGIFHWADDR 0x8927
+-#define SIOCGIFSLAVE 0x8929
+-#define SIOCSIFSLAVE 0x8930
+-#define SIOCADDMULTI 0x8931
+-#define SIOCDELMULTI 0x8932
+-#define SIOCGIFINDEX 0x8933
+-#define SIOGIFINDEX SIOCGIFINDEX
+-#define SIOCSIFPFLAGS 0x8934
+-#define SIOCGIFPFLAGS 0x8935
+-#define SIOCDIFADDR 0x8936
+-#define SIOCSIFHWBROADCAST 0x8937
+-#define SIOCGIFCOUNT 0x8938
+-
+-#define SIOCGIFBR 0x8940
+-#define SIOCSIFBR 0x8941
+-
+-#define SIOCGIFTXQLEN 0x8942
+-#define SIOCSIFTXQLEN 0x8943
+-
+-#define SIOCDARP 0x8953
+-#define SIOCGARP 0x8954
+-#define SIOCSARP 0x8955
+-
+-#define SIOCDRARP 0x8960
+-#define SIOCGRARP 0x8961
+-#define SIOCSRARP 0x8962
+-
+-#define SIOCGIFMAP 0x8970
+-#define SIOCSIFMAP 0x8971
+-
+-#define SIOCADDDLCI 0x8980
+-#define SIOCDELDLCI 0x8981
+-
+-#define SIOCDEVPRIVATE 0x89F0
+-#define SIOCPROTOPRIVATE 0x89E0
+--- a/arch/i386/bits/ipc.h
++++ /dev/null
+@@ -1,14 +0,0 @@
+-struct ipc_perm
+-{
+- key_t __ipc_perm_key;
+- uid_t uid;
+- gid_t gid;
+- uid_t cuid;
+- gid_t cgid;
+- mode_t mode;
+- int __ipc_perm_seq;
+- long __pad1;
+- long __pad2;
+-};
+-
+-#define IPC_64 0x100
+--- a/arch/i386/bits/mman.h
++++ b/arch/i386/bits/mman.h
+@@ -38,6 +38,7 @@
+
+ #define MCL_CURRENT 1
+ #define MCL_FUTURE 2
++#define MCL_ONFAULT 4
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+ #define MADV_NORMAL 0
+--- a/arch/i386/bits/msg.h
++++ /dev/null
+@@ -1,16 +0,0 @@
+-struct msqid_ds
+-{
+- struct ipc_perm msg_perm;
+- time_t msg_stime;
+- int __unused1;
+- time_t msg_rtime;
+- int __unused2;
+- time_t msg_ctime;
+- int __unused3;
+- unsigned long msg_cbytes;
+- msgqnum_t msg_qnum;
+- msglen_t msg_qbytes;
+- pid_t msg_lspid;
+- pid_t msg_lrpid;
+- unsigned long __unused[2];
+-};
+--- a/arch/i386/bits/sem.h
++++ /dev/null
+@@ -1,16 +0,0 @@
+-struct semid_ds {
+- struct ipc_perm sem_perm;
+- time_t sem_otime;
+- time_t __unused1;
+- time_t sem_ctime;
+- time_t __unused2;
+-#if __BYTE_ORDER == __LITTLE_ENDIAN
+- unsigned short sem_nsems;
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+-#else
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+- unsigned short sem_nsems;
+-#endif
+- time_t __unused3;
+- time_t __unused4;
+-};
+--- a/arch/i386/bits/shm.h
++++ /dev/null
+@@ -1,29 +0,0 @@
+-#define SHMLBA 4096
+-
+-struct shmid_ds
+-{
+- struct ipc_perm shm_perm;
+- size_t shm_segsz;
+- time_t shm_atime;
+- int __unused1;
+- time_t shm_dtime;
+- int __unused2;
+- time_t shm_ctime;
+- int __unused3;
+- pid_t shm_cpid;
+- pid_t shm_lpid;
+- unsigned long shm_nattch;
+- unsigned long __pad1;
+- unsigned long __pad2;
+-};
+-
+-struct shminfo {
+- unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
+-};
+-
+-struct shm_info {
+- int __used_ids;
+- unsigned long shm_tot, shm_rss, shm_swp;
+- unsigned long __swap_attempts, __swap_successes;
+-};
+-
+--- a/arch/i386/bits/socket.h
++++ /dev/null
+@@ -1,17 +0,0 @@
+-struct msghdr
+-{
+- void *msg_name;
+- socklen_t msg_namelen;
+- struct iovec *msg_iov;
+- int msg_iovlen;
+- void *msg_control;
+- socklen_t msg_controllen;
+- int msg_flags;
+-};
+-
+-struct cmsghdr
+-{
+- socklen_t cmsg_len;
+- int cmsg_level;
+- int cmsg_type;
+-};
+--- a/arch/i386/bits/statfs.h
++++ /dev/null
+@@ -1,7 +0,0 @@
+-struct statfs {
+- unsigned long f_type, f_bsize;
+- fsblkcnt_t f_blocks, f_bfree, f_bavail;
+- fsfilcnt_t f_files, f_ffree;
+- fsid_t f_fsid;
+- unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
+-};
+--- a/arch/i386/bits/syscall.h
++++ b/arch/i386/bits/syscall.h
+@@ -357,6 +357,24 @@
+ #define __NR_memfd_create 356
+ #define __NR_bpf 357
+ #define __NR_execveat 358
++#define __NR_socket 359
++#define __NR_socketpair 360
++#define __NR_bind 361
++#define __NR_connect 362
++#define __NR_listen 363
++#define __NR_accept4 364
++#define __NR_getsockopt 365
++#define __NR_setsockopt 366
++#define __NR_getsockname 367
++#define __NR_getpeername 368
++#define __NR_sendto 369
++#define __NR_sendmsg 370
++#define __NR_recvfrom 371
++#define __NR_recvmsg 372
++#define __NR_shutdown 373
++#define __NR_userfaultfd 374
++#define __NR_membarrier 375
++#define __NR_mlock2 376
+
+
+ /* Repeated with SYS_ prefix */
+@@ -720,3 +738,21 @@
+ #define SYS_memfd_create 356
+ #define SYS_bpf 357
+ #define SYS_execveat 358
++#define SYS_socket 359
++#define SYS_socketpair 360
++#define SYS_bind 361
++#define SYS_connect 362
++#define SYS_listen 363
++#define SYS_accept4 364
++#define SYS_getsockopt 365
++#define SYS_setsockopt 366
++#define SYS_getsockname 367
++#define SYS_getpeername 368
++#define SYS_sendto 369
++#define SYS_sendmsg 370
++#define SYS_recvfrom 371
++#define SYS_recvmsg 372
++#define SYS_shutdown 373
++#define SYS_userfaultfd 374
++#define SYS_membarrier 375
++#define SYS_mlock2 376
+--- a/arch/i386/bits/termios.h
++++ /dev/null
+@@ -1,160 +0,0 @@
+-struct termios
+-{
+- tcflag_t c_iflag;
+- tcflag_t c_oflag;
+- tcflag_t c_cflag;
+- tcflag_t c_lflag;
+- cc_t c_line;
+- cc_t c_cc[NCCS];
+- speed_t __c_ispeed;
+- speed_t __c_ospeed;
+-};
+-
+-#define VINTR 0
+-#define VQUIT 1
+-#define VERASE 2
+-#define VKILL 3
+-#define VEOF 4
+-#define VTIME 5
+-#define VMIN 6
+-#define VSWTC 7
+-#define VSTART 8
+-#define VSTOP 9
+-#define VSUSP 10
+-#define VEOL 11
+-#define VREPRINT 12
+-#define VDISCARD 13
+-#define VWERASE 14
+-#define VLNEXT 15
+-#define VEOL2 16
+-
+-#define IGNBRK 0000001
+-#define BRKINT 0000002
+-#define IGNPAR 0000004
+-#define PARMRK 0000010
+-#define INPCK 0000020
+-#define ISTRIP 0000040
+-#define INLCR 0000100
+-#define IGNCR 0000200
+-#define ICRNL 0000400
+-#define IUCLC 0001000
+-#define IXON 0002000
+-#define IXANY 0004000
+-#define IXOFF 0010000
+-#define IMAXBEL 0020000
+-#define IUTF8 0040000
+-
+-#define OPOST 0000001
+-#define OLCUC 0000002
+-#define ONLCR 0000004
+-#define OCRNL 0000010
+-#define ONOCR 0000020
+-#define ONLRET 0000040
+-#define OFILL 0000100
+-#define OFDEL 0000200
+-#define NLDLY 0000400
+-#define NL0 0000000
+-#define NL1 0000400
+-#define CRDLY 0003000
+-#define CR0 0000000
+-#define CR1 0001000
+-#define CR2 0002000
+-#define CR3 0003000
+-#define TABDLY 0014000
+-#define TAB0 0000000
+-#define TAB1 0004000
+-#define TAB2 0010000
+-#define TAB3 0014000
+-#define BSDLY 0020000
+-#define BS0 0000000
+-#define BS1 0020000
+-#define FFDLY 0100000
+-#define FF0 0000000
+-#define FF1 0100000
+-
+-#define VTDLY 0040000
+-#define VT0 0000000
+-#define VT1 0040000
+-
+-#define B0 0000000
+-#define B50 0000001
+-#define B75 0000002
+-#define B110 0000003
+-#define B134 0000004
+-#define B150 0000005
+-#define B200 0000006
+-#define B300 0000007
+-#define B600 0000010
+-#define B1200 0000011
+-#define B1800 0000012
+-#define B2400 0000013
+-#define B4800 0000014
+-#define B9600 0000015
+-#define B19200 0000016
+-#define B38400 0000017
+-
+-#define B57600 0010001
+-#define B115200 0010002
+-#define B230400 0010003
+-#define B460800 0010004
+-#define B500000 0010005
+-#define B576000 0010006
+-#define B921600 0010007
+-#define B1000000 0010010
+-#define B1152000 0010011
+-#define B1500000 0010012
+-#define B2000000 0010013
+-#define B2500000 0010014
+-#define B3000000 0010015
+-#define B3500000 0010016
+-#define B4000000 0010017
+-
+-#define CBAUD 0010017
+-
+-#define CSIZE 0000060
+-#define CS5 0000000
+-#define CS6 0000020
+-#define CS7 0000040
+-#define CS8 0000060
+-#define CSTOPB 0000100
+-#define CREAD 0000200
+-#define PARENB 0000400
+-#define PARODD 0001000
+-#define HUPCL 0002000
+-#define CLOCAL 0004000
+-
+-#define ISIG 0000001
+-#define ICANON 0000002
+-#define ECHO 0000010
+-#define ECHOE 0000020
+-#define ECHOK 0000040
+-#define ECHONL 0000100
+-#define NOFLSH 0000200
+-#define TOSTOP 0000400
+-#define IEXTEN 0100000
+-
+-#define ECHOCTL 0001000
+-#define ECHOPRT 0002000
+-#define ECHOKE 0004000
+-#define FLUSHO 0010000
+-#define PENDIN 0040000
+-
+-#define TCOOFF 0
+-#define TCOON 1
+-#define TCIOFF 2
+-#define TCION 3
+-
+-#define TCIFLUSH 0
+-#define TCOFLUSH 1
+-#define TCIOFLUSH 2
+-
+-#define TCSANOW 0
+-#define TCSADRAIN 1
+-#define TCSAFLUSH 2
+-
+-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+-#define CBAUDEX 0010000
+-#define CRTSCTS 020000000000
+-#define EXTPROC 0200000
+-#define XTABS 0014000
+-#endif
+--- a/arch/i386/pthread_arch.h
++++ b/arch/i386/pthread_arch.h
+@@ -7,4 +7,4 @@ static inline struct pthread *__pthread_
+
+ #define TP_ADJ(p) (p)
+
+-#define CANCEL_REG_IP 14
++#define MC_PC gregs[REG_EIP]
+--- a/arch/i386/syscall_arch.h
++++ b/arch/i386/syscall_arch.h
+@@ -55,3 +55,5 @@ static inline long __syscall6(long n, lo
+ #define VDSO_USEFUL
+ #define VDSO_CGT_SYM "__vdso_clock_gettime"
+ #define VDSO_CGT_VER "LINUX_2.6"
++
++#define SYSCALL_USE_SOCKETCALL
+--- a/arch/microblaze/atomic.h
++++ /dev/null
+@@ -1,143 +0,0 @@
+-#ifndef _INTERNAL_ATOMIC_H
+-#define _INTERNAL_ATOMIC_H
+-
+-#include <stdint.h>
+-
+-static inline int a_ctz_l(unsigned long x)
+-{
+- static const char debruijn32[32] = {
+- 0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
+- 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
+- };
+- return debruijn32[(x&-x)*0x076be629 >> 27];
+-}
+-
+-static inline int a_ctz_64(uint64_t x)
+-{
+- uint32_t y = x;
+- if (!y) {
+- y = x>>32;
+- return 32 + a_ctz_l(y);
+- }
+- return a_ctz_l(y);
+-}
+-
+-static inline int a_cas(volatile int *p, int t, int s)
+-{
+- register int old, tmp;
+- __asm__ __volatile__ (
+- " addi %0, r0, 0\n"
+- "1: lwx %0, %2, r0\n"
+- " rsubk %1, %0, %3\n"
+- " bnei %1, 1f\n"
+- " swx %4, %2, r0\n"
+- " addic %1, r0, 0\n"
+- " bnei %1, 1b\n"
+- "1: "
+- : "=&r"(old), "=&r"(tmp)
+- : "r"(p), "r"(t), "r"(s)
+- : "cc", "memory" );
+- return old;
+-}
+-
+-static inline void *a_cas_p(volatile void *p, void *t, void *s)
+-{
+- return (void *)a_cas(p, (int)t, (int)s);
+-}
+-
+-static inline int a_swap(volatile int *x, int v)
+-{
+- register int old, tmp;
+- __asm__ __volatile__ (
+- " addi %0, r0, 0\n"
+- "1: lwx %0, %2, r0\n"
+- " swx %3, %2, r0\n"
+- " addic %1, r0, 0\n"
+- " bnei %1, 1b\n"
+- "1: "
+- : "=&r"(old), "=&r"(tmp)
+- : "r"(x), "r"(v)
+- : "cc", "memory" );
+- return old;
+-}
+-
+-static inline int a_fetch_add(volatile int *x, int v)
+-{
+- register int new, tmp;
+- __asm__ __volatile__ (
+- " addi %0, r0, 0\n"
+- "1: lwx %0, %2, r0\n"
+- " addk %0, %0, %3\n"
+- " swx %0, %2, r0\n"
+- " addic %1, r0, 0\n"
+- " bnei %1, 1b\n"
+- "1: "
+- : "=&r"(new), "=&r"(tmp)
+- : "r"(x), "r"(v)
+- : "cc", "memory" );
+- return new-v;
+-}
+-
+-static inline void a_inc(volatile int *x)
+-{
+- a_fetch_add(x, 1);
+-}
+-
+-static inline void a_dec(volatile int *x)
+-{
+- a_fetch_add(x, -1);
+-}
+-
+-static inline void a_store(volatile int *p, int x)
+-{
+- __asm__ __volatile__ (
+- "swi %1, %0"
+- : "=m"(*p) : "r"(x) : "memory" );
+-}
+-
+-#define a_spin a_barrier
+-
+-static inline void a_barrier()
+-{
+- a_cas(&(int){0}, 0, 0);
+-}
+-
+-static inline void a_crash()
+-{
+- *(volatile char *)0=0;
+-}
+-
+-static inline void a_and(volatile int *p, int v)
+-{
+- int old;
+- do old = *p;
+- while (a_cas(p, old, old&v) != old);
+-}
+-
+-static inline void a_or(volatile int *p, int v)
+-{
+- int old;
+- do old = *p;
+- while (a_cas(p, old, old|v) != old);
+-}
+-
+-static inline void a_or_l(volatile void *p, long v)
+-{
+- a_or(p, v);
+-}
+-
+-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_and((int *)p, u.r[0]);
+- a_and((int *)p+1, u.r[1]);
+-}
+-
+-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_or((int *)p, u.r[0]);
+- a_or((int *)p+1, u.r[1]);
+-}
+-
+-#endif
+--- /dev/null
++++ b/arch/microblaze/atomic_arch.h
+@@ -0,0 +1,53 @@
++#define a_cas a_cas
++static inline int a_cas(volatile int *p, int t, int s)
++{
++ register int old, tmp;
++ __asm__ __volatile__ (
++ " addi %0, r0, 0\n"
++ "1: lwx %0, %2, r0\n"
++ " rsubk %1, %0, %3\n"
++ " bnei %1, 1f\n"
++ " swx %4, %2, r0\n"
++ " addic %1, r0, 0\n"
++ " bnei %1, 1b\n"
++ "1: "
++ : "=&r"(old), "=&r"(tmp)
++ : "r"(p), "r"(t), "r"(s)
++ : "cc", "memory" );
++ return old;
++}
++
++#define a_swap a_swap
++static inline int a_swap(volatile int *x, int v)
++{
++ register int old, tmp;
++ __asm__ __volatile__ (
++ " addi %0, r0, 0\n"
++ "1: lwx %0, %2, r0\n"
++ " swx %3, %2, r0\n"
++ " addic %1, r0, 0\n"
++ " bnei %1, 1b\n"
++ "1: "
++ : "=&r"(old), "=&r"(tmp)
++ : "r"(x), "r"(v)
++ : "cc", "memory" );
++ return old;
++}
++
++#define a_fetch_add a_fetch_add
++static inline int a_fetch_add(volatile int *x, int v)
++{
++ register int new, tmp;
++ __asm__ __volatile__ (
++ " addi %0, r0, 0\n"
++ "1: lwx %0, %2, r0\n"
++ " addk %0, %0, %3\n"
++ " swx %0, %2, r0\n"
++ " addic %1, r0, 0\n"
++ " bnei %1, 1b\n"
++ "1: "
++ : "=&r"(new), "=&r"(tmp)
++ : "r"(x), "r"(v)
++ : "cc", "memory" );
++ return new-v;
++}
+--- a/arch/microblaze/bits/errno.h
++++ /dev/null
+@@ -1,134 +0,0 @@
+-#define EPERM 1
+-#define ENOENT 2
+-#define ESRCH 3
+-#define EINTR 4
+-#define EIO 5
+-#define ENXIO 6
+-#define E2BIG 7
+-#define ENOEXEC 8
+-#define EBADF 9
+-#define ECHILD 10
+-#define EAGAIN 11
+-#define ENOMEM 12
+-#define EACCES 13
+-#define EFAULT 14
+-#define ENOTBLK 15
+-#define EBUSY 16
+-#define EEXIST 17
+-#define EXDEV 18
+-#define ENODEV 19
+-#define ENOTDIR 20
+-#define EISDIR 21
+-#define EINVAL 22
+-#define ENFILE 23
+-#define EMFILE 24
+-#define ENOTTY 25
+-#define ETXTBSY 26
+-#define EFBIG 27
+-#define ENOSPC 28
+-#define ESPIPE 29
+-#define EROFS 30
+-#define EMLINK 31
+-#define EPIPE 32
+-#define EDOM 33
+-#define ERANGE 34
+-#define EDEADLK 35
+-#define ENAMETOOLONG 36
+-#define ENOLCK 37
+-#define ENOSYS 38
+-#define ENOTEMPTY 39
+-#define ELOOP 40
+-#define EWOULDBLOCK EAGAIN
+-#define ENOMSG 42
+-#define EIDRM 43
+-#define ECHRNG 44
+-#define EL2NSYNC 45
+-#define EL3HLT 46
+-#define EL3RST 47
+-#define ELNRNG 48
+-#define EUNATCH 49
+-#define ENOCSI 50
+-#define EL2HLT 51
+-#define EBADE 52
+-#define EBADR 53
+-#define EXFULL 54
+-#define ENOANO 55
+-#define EBADRQC 56
+-#define EBADSLT 57
+-#define EDEADLOCK EDEADLK
+-#define EBFONT 59
+-#define ENOSTR 60
+-#define ENODATA 61
+-#define ETIME 62
+-#define ENOSR 63
+-#define ENONET 64
+-#define ENOPKG 65
+-#define EREMOTE 66
+-#define ENOLINK 67
+-#define EADV 68
+-#define ESRMNT 69
+-#define ECOMM 70
+-#define EPROTO 71
+-#define EMULTIHOP 72
+-#define EDOTDOT 73
+-#define EBADMSG 74
+-#define EOVERFLOW 75
+-#define ENOTUNIQ 76
+-#define EBADFD 77
+-#define EREMCHG 78
+-#define ELIBACC 79
+-#define ELIBBAD 80
+-#define ELIBSCN 81
+-#define ELIBMAX 82
+-#define ELIBEXEC 83
+-#define EILSEQ 84
+-#define ERESTART 85
+-#define ESTRPIPE 86
+-#define EUSERS 87
+-#define ENOTSOCK 88
+-#define EDESTADDRREQ 89
+-#define EMSGSIZE 90
+-#define EPROTOTYPE 91
+-#define ENOPROTOOPT 92
+-#define EPROTONOSUPPORT 93
+-#define ESOCKTNOSUPPORT 94
+-#define EOPNOTSUPP 95
+-#define ENOTSUP EOPNOTSUPP
+-#define EPFNOSUPPORT 96
+-#define EAFNOSUPPORT 97
+-#define EADDRINUSE 98
+-#define EADDRNOTAVAIL 99
+-#define ENETDOWN 100
+-#define ENETUNREACH 101
+-#define ENETRESET 102
+-#define ECONNABORTED 103
+-#define ECONNRESET 104
+-#define ENOBUFS 105
+-#define EISCONN 106
+-#define ENOTCONN 107
+-#define ESHUTDOWN 108
+-#define ETOOMANYREFS 109
+-#define ETIMEDOUT 110
+-#define ECONNREFUSED 111
+-#define EHOSTDOWN 112
+-#define EHOSTUNREACH 113
+-#define EALREADY 114
+-#define EINPROGRESS 115
+-#define ESTALE 116
+-#define EUCLEAN 117
+-#define ENOTNAM 118
+-#define ENAVAIL 119
+-#define EISNAM 120
+-#define EREMOTEIO 121
+-#define EDQUOT 122
+-#define ENOMEDIUM 123
+-#define EMEDIUMTYPE 124
+-#define ECANCELED 125
+-#define ENOKEY 126
+-#define EKEYEXPIRED 127
+-#define EKEYREVOKED 128
+-#define EKEYREJECTED 129
+-#define EOWNERDEAD 130
+-#define ENOTRECOVERABLE 131
+-#define ERFKILL 132
+-#define EHWPOISON 133
+--- a/arch/microblaze/bits/fcntl.h
++++ /dev/null
+@@ -1,40 +0,0 @@
+-#define O_CREAT 0100
+-#define O_EXCL 0200
+-#define O_NOCTTY 0400
+-#define O_TRUNC 01000
+-#define O_APPEND 02000
+-#define O_NONBLOCK 04000
+-#define O_DSYNC 010000
+-#define O_SYNC 04010000
+-#define O_RSYNC 04010000
+-#define O_DIRECTORY 0200000
+-#define O_NOFOLLOW 0400000
+-#define O_CLOEXEC 02000000
+-
+-#define O_ASYNC 020000
+-#define O_DIRECT 040000
+-#define O_LARGEFILE 0100000
+-#define O_NOATIME 01000000
+-#define O_PATH 010000000
+-#define O_TMPFILE 020200000
+-#define O_NDELAY O_NONBLOCK
+-
+-#define F_DUPFD 0
+-#define F_GETFD 1
+-#define F_SETFD 2
+-#define F_GETFL 3
+-#define F_SETFL 4
+-
+-#define F_SETOWN 8
+-#define F_GETOWN 9
+-#define F_SETSIG 10
+-#define F_GETSIG 11
+-
+-#define F_GETLK 12
+-#define F_SETLK 13
+-#define F_SETLKW 14
+-
+-#define F_SETOWN_EX 15
+-#define F_GETOWN_EX 16
+-
+-#define F_GETOWNER_UIDS 17
+--- a/arch/microblaze/bits/fenv.h
++++ /dev/null
+@@ -1,10 +0,0 @@
+-#define FE_ALL_EXCEPT 0
+-#define FE_TONEAREST 0
+-
+-typedef unsigned long fexcept_t;
+-
+-typedef struct {
+- unsigned long __cw;
+-} fenv_t;
+-
+-#define FE_DFL_ENV ((const fenv_t *) -1)
+--- a/arch/microblaze/bits/ioctl.h
++++ /dev/null
+@@ -1,197 +0,0 @@
+-#define _IOC(a,b,c,d) ( ((a)<<30) | ((b)<<8) | (c) | ((d)<<16) )
+-#define _IOC_NONE 0U
+-#define _IOC_WRITE 1U
+-#define _IOC_READ 2U
+-
+-#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
+-#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
+-#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
+-#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
+-
+-#define TCGETS 0x5401
+-#define TCSETS 0x5402
+-#define TCSETSW 0x5403
+-#define TCSETSF 0x5404
+-#define TCGETA 0x5405
+-#define TCSETA 0x5406
+-#define TCSETAW 0x5407
+-#define TCSETAF 0x5408
+-#define TCSBRK 0x5409
+-#define TCXONC 0x540A
+-#define TCFLSH 0x540B
+-#define TIOCEXCL 0x540C
+-#define TIOCNXCL 0x540D
+-#define TIOCSCTTY 0x540E
+-#define TIOCGPGRP 0x540F
+-#define TIOCSPGRP 0x5410
+-#define TIOCOUTQ 0x5411
+-#define TIOCSTI 0x5412
+-#define TIOCGWINSZ 0x5413
+-#define TIOCSWINSZ 0x5414
+-#define TIOCMGET 0x5415
+-#define TIOCMBIS 0x5416
+-#define TIOCMBIC 0x5417
+-#define TIOCMSET 0x5418
+-#define TIOCGSOFTCAR 0x5419
+-#define TIOCSSOFTCAR 0x541A
+-#define FIONREAD 0x541B
+-#define TIOCINQ FIONREAD
+-#define TIOCLINUX 0x541C
+-#define TIOCCONS 0x541D
+-#define TIOCGSERIAL 0x541E
+-#define TIOCSSERIAL 0x541F
+-#define TIOCPKT 0x5420
+-#define FIONBIO 0x5421
+-#define TIOCNOTTY 0x5422
+-#define TIOCSETD 0x5423
+-#define TIOCGETD 0x5424
+-#define TCSBRKP 0x5425
+-#define TIOCTTYGSTRUCT 0x5426
+-#define TIOCSBRK 0x5427
+-#define TIOCCBRK 0x5428
+-#define TIOCGSID 0x5429
+-#define TIOCGPTN 0x80045430
+-#define TIOCSPTLCK 0x40045431
+-#define TCGETX 0x5432
+-#define TCSETX 0x5433
+-#define TCSETXF 0x5434
+-#define TCSETXW 0x5435
+-
+-#define FIONCLEX 0x5450
+-#define FIOCLEX 0x5451
+-#define FIOASYNC 0x5452
+-#define TIOCSERCONFIG 0x5453
+-#define TIOCSERGWILD 0x5454
+-#define TIOCSERSWILD 0x5455
+-#define TIOCGLCKTRMIOS 0x5456
+-#define TIOCSLCKTRMIOS 0x5457
+-#define TIOCSERGSTRUCT 0x5458
+-#define TIOCSERGETLSR 0x5459
+-#define TIOCSERGETMULTI 0x545A
+-#define TIOCSERSETMULTI 0x545B
+-
+-#define TIOCMIWAIT 0x545C
+-#define TIOCGICOUNT 0x545D
+-#define TIOCGHAYESESP 0x545E
+-#define TIOCSHAYESESP 0x545F
+-#define FIOQSIZE 0x5460
+-
+-#define TIOCPKT_DATA 0
+-#define TIOCPKT_FLUSHREAD 1
+-#define TIOCPKT_FLUSHWRITE 2
+-#define TIOCPKT_STOP 4
+-#define TIOCPKT_START 8
+-#define TIOCPKT_NOSTOP 16
+-#define TIOCPKT_DOSTOP 32
+-#define TIOCPKT_IOCTL 64
+-
+-#define TIOCSER_TEMT 0x01
+-
+-struct winsize {
+- unsigned short ws_row;
+- unsigned short ws_col;
+- unsigned short ws_xpixel;
+- unsigned short ws_ypixel;
+-};
+-
+-#define TIOCM_LE 0x001
+-#define TIOCM_DTR 0x002
+-#define TIOCM_RTS 0x004
+-#define TIOCM_ST 0x008
+-#define TIOCM_SR 0x010
+-#define TIOCM_CTS 0x020
+-#define TIOCM_CAR 0x040
+-#define TIOCM_RNG 0x080
+-#define TIOCM_DSR 0x100
+-#define TIOCM_CD TIOCM_CAR
+-#define TIOCM_RI TIOCM_RNG
+-#define TIOCM_OUT1 0x2000
+-#define TIOCM_OUT2 0x4000
+-#define TIOCM_LOOP 0x8000
+-#define TIOCM_MODEM_BITS TIOCM_OUT2
+-
+-#define N_TTY 0
+-#define N_SLIP 1
+-#define N_MOUSE 2
+-#define N_PPP 3
+-#define N_STRIP 4
+-#define N_AX25 5
+-#define N_X25 6
+-#define N_6PACK 7
+-#define N_MASC 8
+-#define N_R3964 9
+-#define N_PROFIBUS_FDL 10
+-#define N_IRDA 11
+-#define N_SMSBLOCK 12
+-#define N_HDLC 13
+-#define N_SYNC_PPP 14
+-#define N_HCI 15
+-
+-#define FIOSETOWN 0x8901
+-#define SIOCSPGRP 0x8902
+-#define FIOGETOWN 0x8903
+-#define SIOCGPGRP 0x8904
+-#define SIOCATMARK 0x8905
+-#define SIOCGSTAMP 0x8906
+-
+-#define SIOCADDRT 0x890B
+-#define SIOCDELRT 0x890C
+-#define SIOCRTMSG 0x890D
+-
+-#define SIOCGIFNAME 0x8910
+-#define SIOCSIFLINK 0x8911
+-#define SIOCGIFCONF 0x8912
+-#define SIOCGIFFLAGS 0x8913
+-#define SIOCSIFFLAGS 0x8914
+-#define SIOCGIFADDR 0x8915
+-#define SIOCSIFADDR 0x8916
+-#define SIOCGIFDSTADDR 0x8917
+-#define SIOCSIFDSTADDR 0x8918
+-#define SIOCGIFBRDADDR 0x8919
+-#define SIOCSIFBRDADDR 0x891a
+-#define SIOCGIFNETMASK 0x891b
+-#define SIOCSIFNETMASK 0x891c
+-#define SIOCGIFMETRIC 0x891d
+-#define SIOCSIFMETRIC 0x891e
+-#define SIOCGIFMEM 0x891f
+-#define SIOCSIFMEM 0x8920
+-#define SIOCGIFMTU 0x8921
+-#define SIOCSIFMTU 0x8922
+-#define SIOCSIFHWADDR 0x8924
+-#define SIOCGIFENCAP 0x8925
+-#define SIOCSIFENCAP 0x8926
+-#define SIOCGIFHWADDR 0x8927
+-#define SIOCGIFSLAVE 0x8929
+-#define SIOCSIFSLAVE 0x8930
+-#define SIOCADDMULTI 0x8931
+-#define SIOCDELMULTI 0x8932
+-#define SIOCGIFINDEX 0x8933
+-#define SIOGIFINDEX SIOCGIFINDEX
+-#define SIOCSIFPFLAGS 0x8934
+-#define SIOCGIFPFLAGS 0x8935
+-#define SIOCDIFADDR 0x8936
+-#define SIOCSIFHWBROADCAST 0x8937
+-#define SIOCGIFCOUNT 0x8938
+-
+-#define SIOCGIFBR 0x8940
+-#define SIOCSIFBR 0x8941
+-
+-#define SIOCGIFTXQLEN 0x8942
+-#define SIOCSIFTXQLEN 0x8943
+-
+-#define SIOCDARP 0x8953
+-#define SIOCGARP 0x8954
+-#define SIOCSARP 0x8955
+-
+-#define SIOCDRARP 0x8960
+-#define SIOCGRARP 0x8961
+-#define SIOCSRARP 0x8962
+-
+-#define SIOCGIFMAP 0x8970
+-#define SIOCSIFMAP 0x8971
+-
+-#define SIOCADDDLCI 0x8980
+-#define SIOCDELDLCI 0x8981
+-
+-#define SIOCDEVPRIVATE 0x89F0
+-#define SIOCPROTOPRIVATE 0x89E0
+--- a/arch/microblaze/bits/ipc.h
++++ /dev/null
+@@ -1,14 +0,0 @@
+-struct ipc_perm
+-{
+- key_t __ipc_perm_key;
+- uid_t uid;
+- gid_t gid;
+- uid_t cuid;
+- gid_t cgid;
+- mode_t mode;
+- int __ipc_perm_seq;
+- long __pad1;
+- long __pad2;
+-};
+-
+-#define IPC_64 0x100
+--- a/arch/microblaze/bits/mman.h
++++ b/arch/microblaze/bits/mman.h
+@@ -37,6 +37,7 @@
+
+ #define MCL_CURRENT 1
+ #define MCL_FUTURE 2
++#define MCL_ONFAULT 4
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+ #define MADV_NORMAL 0
+--- a/arch/microblaze/bits/msg.h
++++ /dev/null
+@@ -1,16 +0,0 @@
+-struct msqid_ds
+-{
+- struct ipc_perm msg_perm;
+- time_t msg_stime;
+- int __unused1;
+- time_t msg_rtime;
+- int __unused2;
+- time_t msg_ctime;
+- int __unused3;
+- unsigned long msg_cbytes;
+- msgqnum_t msg_qnum;
+- msglen_t msg_qbytes;
+- pid_t msg_lspid;
+- pid_t msg_lrpid;
+- unsigned long __unused[2];
+-};
+--- a/arch/microblaze/bits/sem.h
++++ /dev/null
+@@ -1,16 +0,0 @@
+-struct semid_ds {
+- struct ipc_perm sem_perm;
+- time_t sem_otime;
+- time_t __unused1;
+- time_t sem_ctime;
+- time_t __unused2;
+-#if __BYTE_ORDER == __LITTLE_ENDIAN
+- unsigned short sem_nsems;
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+-#else
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+- unsigned short sem_nsems;
+-#endif
+- time_t __unused3;
+- time_t __unused4;
+-};
+--- a/arch/microblaze/bits/shm.h
++++ /dev/null
+@@ -1,29 +0,0 @@
+-#define SHMLBA 4096
+-
+-struct shmid_ds
+-{
+- struct ipc_perm shm_perm;
+- size_t shm_segsz;
+- time_t shm_atime;
+- int __unused1;
+- time_t shm_dtime;
+- int __unused2;
+- time_t shm_ctime;
+- int __unused3;
+- pid_t shm_cpid;
+- pid_t shm_lpid;
+- unsigned long shm_nattch;
+- unsigned long __pad1;
+- unsigned long __pad2;
+-};
+-
+-struct shminfo {
+- unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
+-};
+-
+-struct shm_info {
+- int __used_ids;
+- unsigned long shm_tot, shm_rss, shm_swp;
+- unsigned long __swap_attempts, __swap_successes;
+-};
+-
+--- a/arch/microblaze/bits/socket.h
++++ /dev/null
+@@ -1,17 +0,0 @@
+-struct msghdr
+-{
+- void *msg_name;
+- socklen_t msg_namelen;
+- struct iovec *msg_iov;
+- int msg_iovlen;
+- void *msg_control;
+- socklen_t msg_controllen;
+- int msg_flags;
+-};
+-
+-struct cmsghdr
+-{
+- socklen_t cmsg_len;
+- int cmsg_level;
+- int cmsg_type;
+-};
+--- a/arch/microblaze/bits/statfs.h
++++ /dev/null
+@@ -1,7 +0,0 @@
+-struct statfs {
+- unsigned long f_type, f_bsize;
+- fsblkcnt_t f_blocks, f_bfree, f_bavail;
+- fsfilcnt_t f_files, f_ffree;
+- fsid_t f_fsid;
+- unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
+-};
+--- a/arch/microblaze/bits/stdarg.h
++++ /dev/null
+@@ -1,4 +0,0 @@
+-#define va_start(v,l) __builtin_va_start(v,l)
+-#define va_end(v) __builtin_va_end(v)
+-#define va_arg(v,l) __builtin_va_arg(v,l)
+-#define va_copy(d,s) __builtin_va_copy(d,s)
+--- a/arch/microblaze/bits/termios.h
++++ /dev/null
+@@ -1,160 +0,0 @@
+-struct termios
+-{
+- tcflag_t c_iflag;
+- tcflag_t c_oflag;
+- tcflag_t c_cflag;
+- tcflag_t c_lflag;
+- cc_t c_line;
+- cc_t c_cc[NCCS];
+- speed_t __c_ispeed;
+- speed_t __c_ospeed;
+-};
+-
+-#define VINTR 0
+-#define VQUIT 1
+-#define VERASE 2
+-#define VKILL 3
+-#define VEOF 4
+-#define VTIME 5
+-#define VMIN 6
+-#define VSWTC 7
+-#define VSTART 8
+-#define VSTOP 9
+-#define VSUSP 10
+-#define VEOL 11
+-#define VREPRINT 12
+-#define VDISCARD 13
+-#define VWERASE 14
+-#define VLNEXT 15
+-#define VEOL2 16
+-
+-#define IGNBRK 0000001
+-#define BRKINT 0000002
+-#define IGNPAR 0000004
+-#define PARMRK 0000010
+-#define INPCK 0000020
+-#define ISTRIP 0000040
+-#define INLCR 0000100
+-#define IGNCR 0000200
+-#define ICRNL 0000400
+-#define IUCLC 0001000
+-#define IXON 0002000
+-#define IXANY 0004000
+-#define IXOFF 0010000
+-#define IMAXBEL 0020000
+-#define IUTF8 0040000
+-
+-#define OPOST 0000001
+-#define OLCUC 0000002
+-#define ONLCR 0000004
+-#define OCRNL 0000010
+-#define ONOCR 0000020
+-#define ONLRET 0000040
+-#define OFILL 0000100
+-#define OFDEL 0000200
+-#define NLDLY 0000400
+-#define NL0 0000000
+-#define NL1 0000400
+-#define CRDLY 0003000
+-#define CR0 0000000
+-#define CR1 0001000
+-#define CR2 0002000
+-#define CR3 0003000
+-#define TABDLY 0014000
+-#define TAB0 0000000
+-#define TAB1 0004000
+-#define TAB2 0010000
+-#define TAB3 0014000
+-#define BSDLY 0020000
+-#define BS0 0000000
+-#define BS1 0020000
+-#define FFDLY 0100000
+-#define FF0 0000000
+-#define FF1 0100000
+-
+-#define VTDLY 0040000
+-#define VT0 0000000
+-#define VT1 0040000
+-
+-#define B0 0000000
+-#define B50 0000001
+-#define B75 0000002
+-#define B110 0000003
+-#define B134 0000004
+-#define B150 0000005
+-#define B200 0000006
+-#define B300 0000007
+-#define B600 0000010
+-#define B1200 0000011
+-#define B1800 0000012
+-#define B2400 0000013
+-#define B4800 0000014
+-#define B9600 0000015
+-#define B19200 0000016
+-#define B38400 0000017
+-
+-#define B57600 0010001
+-#define B115200 0010002
+-#define B230400 0010003
+-#define B460800 0010004
+-#define B500000 0010005
+-#define B576000 0010006
+-#define B921600 0010007
+-#define B1000000 0010010
+-#define B1152000 0010011
+-#define B1500000 0010012
+-#define B2000000 0010013
+-#define B2500000 0010014
+-#define B3000000 0010015
+-#define B3500000 0010016
+-#define B4000000 0010017
+-
+-#define CBAUD 0010017
+-
+-#define CSIZE 0000060
+-#define CS5 0000000
+-#define CS6 0000020
+-#define CS7 0000040
+-#define CS8 0000060
+-#define CSTOPB 0000100
+-#define CREAD 0000200
+-#define PARENB 0000400
+-#define PARODD 0001000
+-#define HUPCL 0002000
+-#define CLOCAL 0004000
+-
+-#define ISIG 0000001
+-#define ICANON 0000002
+-#define ECHO 0000010
+-#define ECHOE 0000020
+-#define ECHOK 0000040
+-#define ECHONL 0000100
+-#define NOFLSH 0000200
+-#define TOSTOP 0000400
+-#define IEXTEN 0100000
+-
+-#define ECHOCTL 0001000
+-#define ECHOPRT 0002000
+-#define ECHOKE 0004000
+-#define FLUSHO 0010000
+-#define PENDIN 0040000
+-
+-#define TCOOFF 0
+-#define TCOON 1
+-#define TCIOFF 2
+-#define TCION 3
+-
+-#define TCIFLUSH 0
+-#define TCOFLUSH 1
+-#define TCIOFLUSH 2
+-
+-#define TCSANOW 0
+-#define TCSADRAIN 1
+-#define TCSAFLUSH 2
+-
+-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+-#define CBAUDEX 0010000
+-#define CRTSCTS 020000000000
+-#define EXTPROC 0200000
+-#define XTABS 0014000
+-#endif
+--- a/arch/microblaze/pthread_arch.h
++++ b/arch/microblaze/pthread_arch.h
+@@ -7,4 +7,4 @@ static inline struct pthread *__pthread_
+
+ #define TP_ADJ(p) (p)
+
+-#define CANCEL_REG_IP 32
++#define MC_PC regs.pc
+--- a/arch/mips/atomic.h
++++ /dev/null
+@@ -1,205 +0,0 @@
+-#ifndef _INTERNAL_ATOMIC_H
+-#define _INTERNAL_ATOMIC_H
+-
+-#include <stdint.h>
+-
+-static inline int a_ctz_l(unsigned long x)
+-{
+- static const char debruijn32[32] = {
+- 0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
+- 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
+- };
+- return debruijn32[(x&-x)*0x076be629 >> 27];
+-}
+-
+-static inline int a_ctz_64(uint64_t x)
+-{
+- uint32_t y = x;
+- if (!y) {
+- y = x>>32;
+- return 32 + a_ctz_l(y);
+- }
+- return a_ctz_l(y);
+-}
+-
+-static inline int a_cas(volatile int *p, int t, int s)
+-{
+- int dummy;
+- __asm__ __volatile__(
+- ".set push\n"
+- ".set mips2\n"
+- ".set noreorder\n"
+- " sync\n"
+- "1: ll %0, %2\n"
+- " bne %0, %3, 1f\n"
+- " addu %1, %4, $0\n"
+- " sc %1, %2\n"
+- " beq %1, $0, 1b\n"
+- " nop\n"
+- " sync\n"
+- "1: \n"
+- ".set pop\n"
+- : "=&r"(t), "=&r"(dummy), "+m"(*p) : "r"(t), "r"(s) : "memory" );
+- return t;
+-}
+-
+-static inline void *a_cas_p(volatile void *p, void *t, void *s)
+-{
+- return (void *)a_cas(p, (int)t, (int)s);
+-}
+-
+-static inline int a_swap(volatile int *x, int v)
+-{
+- int old, dummy;
+- __asm__ __volatile__(
+- ".set push\n"
+- ".set mips2\n"
+- ".set noreorder\n"
+- " sync\n"
+- "1: ll %0, %2\n"
+- " addu %1, %3, $0\n"
+- " sc %1, %2\n"
+- " beq %1, $0, 1b\n"
+- " nop\n"
+- " sync\n"
+- ".set pop\n"
+- : "=&r"(old), "=&r"(dummy), "+m"(*x) : "r"(v) : "memory" );
+- return old;
+-}
+-
+-static inline int a_fetch_add(volatile int *x, int v)
+-{
+- int old, dummy;
+- __asm__ __volatile__(
+- ".set push\n"
+- ".set mips2\n"
+- ".set noreorder\n"
+- " sync\n"
+- "1: ll %0, %2\n"
+- " addu %1, %0, %3\n"
+- " sc %1, %2\n"
+- " beq %1, $0, 1b\n"
+- " nop\n"
+- " sync\n"
+- ".set pop\n"
+- : "=&r"(old), "=&r"(dummy), "+m"(*x) : "r"(v) : "memory" );
+- return old;
+-}
+-
+-static inline void a_inc(volatile int *x)
+-{
+- int dummy;
+- __asm__ __volatile__(
+- ".set push\n"
+- ".set mips2\n"
+- ".set noreorder\n"
+- " sync\n"
+- "1: ll %0, %1\n"
+- " addu %0, %0, 1\n"
+- " sc %0, %1\n"
+- " beq %0, $0, 1b\n"
+- " nop\n"
+- " sync\n"
+- ".set pop\n"
+- : "=&r"(dummy), "+m"(*x) : : "memory" );
+-}
+-
+-static inline void a_dec(volatile int *x)
+-{
+- int dummy;
+- __asm__ __volatile__(
+- ".set push\n"
+- ".set mips2\n"
+- ".set noreorder\n"
+- " sync\n"
+- "1: ll %0, %1\n"
+- " subu %0, %0, 1\n"
+- " sc %0, %1\n"
+- " beq %0, $0, 1b\n"
+- " nop\n"
+- " sync\n"
+- ".set pop\n"
+- : "=&r"(dummy), "+m"(*x) : : "memory" );
+-}
+-
+-static inline void a_store(volatile int *p, int x)
+-{
+- __asm__ __volatile__(
+- ".set push\n"
+- ".set mips2\n"
+- ".set noreorder\n"
+- " sync\n"
+- " sw %1, %0\n"
+- " sync\n"
+- ".set pop\n"
+- : "+m"(*p) : "r"(x) : "memory" );
+-}
+-
+-#define a_spin a_barrier
+-
+-static inline void a_barrier()
+-{
+- a_cas(&(int){0}, 0, 0);
+-}
+-
+-static inline void a_crash()
+-{
+- *(volatile char *)0=0;
+-}
+-
+-static inline void a_and(volatile int *p, int v)
+-{
+- int dummy;
+- __asm__ __volatile__(
+- ".set push\n"
+- ".set mips2\n"
+- ".set noreorder\n"
+- " sync\n"
+- "1: ll %0, %1\n"
+- " and %0, %0, %2\n"
+- " sc %0, %1\n"
+- " beq %0, $0, 1b\n"
+- " nop\n"
+- " sync\n"
+- ".set pop\n"
+- : "=&r"(dummy), "+m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline void a_or(volatile int *p, int v)
+-{
+- int dummy;
+- __asm__ __volatile__(
+- ".set push\n"
+- ".set mips2\n"
+- ".set noreorder\n"
+- " sync\n"
+- "1: ll %0, %1\n"
+- " or %0, %0, %2\n"
+- " sc %0, %1\n"
+- " beq %0, $0, 1b\n"
+- " nop\n"
+- " sync\n"
+- ".set pop\n"
+- : "=&r"(dummy), "+m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline void a_or_l(volatile void *p, long v)
+-{
+- a_or(p, v);
+-}
+-
+-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_and((int *)p, u.r[0]);
+- a_and((int *)p+1, u.r[1]);
+-}
+-
+-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_or((int *)p, u.r[0]);
+- a_or((int *)p+1, u.r[1]);
+-}
+-
+-#endif
+--- /dev/null
++++ b/arch/mips/atomic_arch.h
+@@ -0,0 +1,39 @@
++#define a_ll a_ll
++static inline int a_ll(volatile int *p)
++{
++ int v;
++ __asm__ __volatile__ (
++ ".set push ; .set mips2\n\t"
++ "ll %0, %1"
++ "\n\t.set pop"
++ : "=r"(v) : "m"(*p));
++ return v;
++}
++
++#define a_sc a_sc
++static inline int a_sc(volatile int *p, int v)
++{
++ int r;
++ __asm__ __volatile__ (
++ ".set push ; .set mips2\n\t"
++ "sc %0, %1"
++ "\n\t.set pop"
++ : "=r"(r), "=m"(*p) : "0"(v) : "memory");
++ return r;
++}
++
++#define a_barrier a_barrier
++static inline void a_barrier()
++{
++ /* mips2 sync, but using too many directives causes
++ * gcc not to inline it, so encode with .long instead. */
++ __asm__ __volatile__ (".long 0xf" : : : "memory");
++#if 0
++ __asm__ __volatile__ (
++ ".set push ; .set mips2 ; sync ; .set pop"
++ : : : "memory");
++#endif
++}
++
++#define a_pre_llsc a_barrier
++#define a_post_llsc a_barrier
+--- a/arch/mips/bits/ipc.h
++++ /dev/null
+@@ -1,14 +0,0 @@
+-struct ipc_perm
+-{
+- key_t __ipc_perm_key;
+- uid_t uid;
+- gid_t gid;
+- uid_t cuid;
+- gid_t cgid;
+- mode_t mode;
+- int __ipc_perm_seq;
+- long __pad1;
+- long __pad2;
+-};
+-
+-#define IPC_64 0x100
+--- a/arch/mips/bits/mman.h
++++ b/arch/mips/bits/mman.h
+@@ -37,6 +37,7 @@
+
+ #define MCL_CURRENT 1
+ #define MCL_FUTURE 2
++#define MCL_ONFAULT 4
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+ #define MADV_NORMAL 0
+--- a/arch/mips/bits/signal.h
++++ b/arch/mips/bits/signal.h
+@@ -73,6 +73,15 @@ typedef struct __ucontext {
+ #define SIG_UNBLOCK 2
+ #define SIG_SETMASK 3
+
++#undef SI_ASYNCIO
++#undef SI_MESGQ
++#undef SI_TIMER
++#define SI_ASYNCIO (-2)
++#define SI_MESGQ (-4)
++#define SI_TIMER (-3)
++
++#define __SI_SWAP_ERRNO_CODE
++
+ #endif
+
+ #define SIGHUP 1
+--- a/arch/mips/bits/stdarg.h
++++ /dev/null
+@@ -1,4 +0,0 @@
+-#define va_start(v,l) __builtin_va_start(v,l)
+-#define va_end(v) __builtin_va_end(v)
+-#define va_arg(v,l) __builtin_va_arg(v,l)
+-#define va_copy(d,s) __builtin_va_copy(d,s)
+--- a/arch/mips/bits/syscall.h
++++ b/arch/mips/bits/syscall.h
+@@ -354,6 +354,9 @@
+ #define __NR_memfd_create 4354
+ #define __NR_bpf 4355
+ #define __NR_execveat 4356
++#define __NR_userfaultfd 4357
++#define __NR_membarrier 4358
++#define __NR_mlock2 4359
+
+
+ /* Repeated with SYS_ prefix */
+@@ -713,3 +716,6 @@
+ #define SYS_memfd_create 4354
+ #define SYS_bpf 4355
+ #define SYS_execveat 4356
++#define SYS_userfaultfd 4357
++#define SYS_membarrier 4358
++#define SYS_mlock2 4359
+--- a/arch/mips/crt_arch.h
++++ b/arch/mips/crt_arch.h
+@@ -4,13 +4,16 @@ __asm__(
+ ".text \n"
+ ".global _" START "\n"
+ ".global " START "\n"
++".global " START "_data\n"
+ ".type _" START ", @function\n"
+ ".type " START ", @function\n"
++".type " START "_data, @function\n"
+ "_" START ":\n"
+ "" START ":\n"
+ " bal 1f \n"
+ " move $fp, $0 \n"
+-"2: .gpword 2b \n"
++"" START "_data: \n"
++" .gpword " START "_data \n"
+ " .gpword " START "_c \n"
+ ".weak _DYNAMIC \n"
+ ".hidden _DYNAMIC \n"
+--- a/arch/mips/pthread_arch.h
++++ b/arch/mips/pthread_arch.h
+@@ -16,4 +16,4 @@ static inline struct pthread *__pthread_
+
+ #define DTP_OFFSET 0x8000
+
+-#define CANCEL_REG_IP (3-(union {int __i; char __b;}){1}.__b)
++#define MC_PC pc
+--- a/arch/mips/syscall_arch.h
++++ b/arch/mips/syscall_arch.h
+@@ -3,9 +3,7 @@
+ ((union { long long ll; long l[2]; }){ .ll = x }).l[1]
+ #define __SYSCALL_LL_O(x) 0, __SYSCALL_LL_E((x))
+
+-#ifdef SHARED
+ __attribute__((visibility("hidden")))
+-#endif
+ long (__syscall)(long, ...);
+
+ #define SYSCALL_RLIM_INFINITY (-1UL/2)
+@@ -163,3 +161,7 @@ static inline long __syscall6(long n, lo
+ if (n == SYS_fstatat) __stat_fix(c);
+ return r2;
+ }
++
++#define VDSO_USEFUL
++#define VDSO_CGT_SYM "__vdso_clock_gettime"
++#define VDSO_CGT_VER "LINUX_2.6"
+--- a/arch/or1k/atomic.h
++++ /dev/null
+@@ -1,120 +0,0 @@
+-#ifndef _INTERNAL_ATOMIC_H
+-#define _INTERNAL_ATOMIC_H
+-
+-#include <stdint.h>
+-
+-static inline int a_ctz_l(unsigned long x)
+-{
+- static const char debruijn32[32] = {
+- 0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
+- 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
+- };
+- return debruijn32[(x&-x)*0x076be629 >> 27];
+-}
+-
+-static inline int a_ctz_64(uint64_t x)
+-{
+- uint32_t y = x;
+- if (!y) {
+- y = x>>32;
+- return 32 + a_ctz_l(y);
+- }
+- return a_ctz_l(y);
+-}
+-
+-static inline int a_cas(volatile int *p, int t, int s)
+-{
+- __asm__("1: l.lwa %0, %1\n"
+- " l.sfeq %0, %2\n"
+- " l.bnf 1f\n"
+- " l.nop\n"
+- " l.swa %1, %3\n"
+- " l.bnf 1b\n"
+- " l.nop\n"
+- "1: \n"
+- : "=&r"(t), "+m"(*p) : "r"(t), "r"(s) : "cc", "memory" );
+- return t;
+-}
+-
+-static inline void *a_cas_p(volatile void *p, void *t, void *s)
+-{
+- return (void *)a_cas(p, (int)t, (int)s);
+-}
+-
+-static inline int a_swap(volatile int *x, int v)
+-{
+- int old;
+- do old = *x;
+- while (a_cas(x, old, v) != old);
+- return old;
+-}
+-
+-static inline int a_fetch_add(volatile int *x, int v)
+-{
+- int old;
+- do old = *x;
+- while (a_cas(x, old, old+v) != old);
+- return old;
+-}
+-
+-static inline void a_inc(volatile int *x)
+-{
+- a_fetch_add(x, 1);
+-}
+-
+-static inline void a_dec(volatile int *x)
+-{
+- a_fetch_add(x, -1);
+-}
+-
+-static inline void a_store(volatile int *p, int x)
+-{
+- a_swap(p, x);
+-}
+-
+-#define a_spin a_barrier
+-
+-static inline void a_barrier()
+-{
+- a_cas(&(int){0}, 0, 0);
+-}
+-
+-static inline void a_crash()
+-{
+- *(volatile char *)0=0;
+-}
+-
+-static inline void a_and(volatile int *p, int v)
+-{
+- int old;
+- do old = *p;
+- while (a_cas(p, old, old&v) != old);
+-}
+-
+-static inline void a_or(volatile int *p, int v)
+-{
+- int old;
+- do old = *p;
+- while (a_cas(p, old, old|v) != old);
+-}
+-
+-static inline void a_or_l(volatile void *p, long v)
+-{
+- a_or(p, v);
+-}
+-
+-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_and((int *)p, u.r[0]);
+- a_and((int *)p+1, u.r[1]);
+-}
+-
+-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_or((int *)p, u.r[0]);
+- a_or((int *)p+1, u.r[1]);
+-}
+-
+-#endif
+--- /dev/null
++++ b/arch/or1k/atomic_arch.h
+@@ -0,0 +1,14 @@
++#define a_cas a_cas
++static inline int a_cas(volatile int *p, int t, int s)
++{
++ __asm__("1: l.lwa %0, %1\n"
++ " l.sfeq %0, %2\n"
++ " l.bnf 1f\n"
++ " l.nop\n"
++ " l.swa %1, %3\n"
++ " l.bnf 1b\n"
++ " l.nop\n"
++ "1: \n"
++ : "=&r"(t), "+m"(*p) : "r"(t), "r"(s) : "cc", "memory" );
++ return t;
++}
+--- a/arch/or1k/bits/errno.h
++++ /dev/null
+@@ -1,134 +0,0 @@
+-#define EPERM 1
+-#define ENOENT 2
+-#define ESRCH 3
+-#define EINTR 4
+-#define EIO 5
+-#define ENXIO 6
+-#define E2BIG 7
+-#define ENOEXEC 8
+-#define EBADF 9
+-#define ECHILD 10
+-#define EAGAIN 11
+-#define ENOMEM 12
+-#define EACCES 13
+-#define EFAULT 14
+-#define ENOTBLK 15
+-#define EBUSY 16
+-#define EEXIST 17
+-#define EXDEV 18
+-#define ENODEV 19
+-#define ENOTDIR 20
+-#define EISDIR 21
+-#define EINVAL 22
+-#define ENFILE 23
+-#define EMFILE 24
+-#define ENOTTY 25
+-#define ETXTBSY 26
+-#define EFBIG 27
+-#define ENOSPC 28
+-#define ESPIPE 29
+-#define EROFS 30
+-#define EMLINK 31
+-#define EPIPE 32
+-#define EDOM 33
+-#define ERANGE 34
+-#define EDEADLK 35
+-#define ENAMETOOLONG 36
+-#define ENOLCK 37
+-#define ENOSYS 38
+-#define ENOTEMPTY 39
+-#define ELOOP 40
+-#define EWOULDBLOCK EAGAIN
+-#define ENOMSG 42
+-#define EIDRM 43
+-#define ECHRNG 44
+-#define EL2NSYNC 45
+-#define EL3HLT 46
+-#define EL3RST 47
+-#define ELNRNG 48
+-#define EUNATCH 49
+-#define ENOCSI 50
+-#define EL2HLT 51
+-#define EBADE 52
+-#define EBADR 53
+-#define EXFULL 54
+-#define ENOANO 55
+-#define EBADRQC 56
+-#define EBADSLT 57
+-#define EDEADLOCK EDEADLK
+-#define EBFONT 59
+-#define ENOSTR 60
+-#define ENODATA 61
+-#define ETIME 62
+-#define ENOSR 63
+-#define ENONET 64
+-#define ENOPKG 65
+-#define EREMOTE 66
+-#define ENOLINK 67
+-#define EADV 68
+-#define ESRMNT 69
+-#define ECOMM 70
+-#define EPROTO 71
+-#define EMULTIHOP 72
+-#define EDOTDOT 73
+-#define EBADMSG 74
+-#define EOVERFLOW 75
+-#define ENOTUNIQ 76
+-#define EBADFD 77
+-#define EREMCHG 78
+-#define ELIBACC 79
+-#define ELIBBAD 80
+-#define ELIBSCN 81
+-#define ELIBMAX 82
+-#define ELIBEXEC 83
+-#define EILSEQ 84
+-#define ERESTART 85
+-#define ESTRPIPE 86
+-#define EUSERS 87
+-#define ENOTSOCK 88
+-#define EDESTADDRREQ 89
+-#define EMSGSIZE 90
+-#define EPROTOTYPE 91
+-#define ENOPROTOOPT 92
+-#define EPROTONOSUPPORT 93
+-#define ESOCKTNOSUPPORT 94
+-#define EOPNOTSUPP 95
+-#define ENOTSUP EOPNOTSUPP
+-#define EPFNOSUPPORT 96
+-#define EAFNOSUPPORT 97
+-#define EADDRINUSE 98
+-#define EADDRNOTAVAIL 99
+-#define ENETDOWN 100
+-#define ENETUNREACH 101
+-#define ENETRESET 102
+-#define ECONNABORTED 103
+-#define ECONNRESET 104
+-#define ENOBUFS 105
+-#define EISCONN 106
+-#define ENOTCONN 107
+-#define ESHUTDOWN 108
+-#define ETOOMANYREFS 109
+-#define ETIMEDOUT 110
+-#define ECONNREFUSED 111
+-#define EHOSTDOWN 112
+-#define EHOSTUNREACH 113
+-#define EALREADY 114
+-#define EINPROGRESS 115
+-#define ESTALE 116
+-#define EUCLEAN 117
+-#define ENOTNAM 118
+-#define ENAVAIL 119
+-#define EISNAM 120
+-#define EREMOTEIO 121
+-#define EDQUOT 122
+-#define ENOMEDIUM 123
+-#define EMEDIUMTYPE 124
+-#define ECANCELED 125
+-#define ENOKEY 126
+-#define EKEYEXPIRED 127
+-#define EKEYREVOKED 128
+-#define EKEYREJECTED 129
+-#define EOWNERDEAD 130
+-#define ENOTRECOVERABLE 131
+-#define ERFKILL 132
+-#define EHWPOISON 133
+--- a/arch/or1k/bits/fcntl.h
++++ /dev/null
+@@ -1,40 +0,0 @@
+-#define O_CREAT 0100
+-#define O_EXCL 0200
+-#define O_NOCTTY 0400
+-#define O_TRUNC 01000
+-#define O_APPEND 02000
+-#define O_NONBLOCK 04000
+-#define O_DSYNC 010000
+-#define O_SYNC 04010000
+-#define O_RSYNC 04010000
+-#define O_DIRECTORY 0200000
+-#define O_NOFOLLOW 0400000
+-#define O_CLOEXEC 02000000
+-
+-#define O_ASYNC 020000
+-#define O_DIRECT 040000
+-#define O_LARGEFILE 0100000
+-#define O_NOATIME 01000000
+-#define O_PATH 010000000
+-#define O_TMPFILE 020200000
+-#define O_NDELAY O_NONBLOCK
+-
+-#define F_DUPFD 0
+-#define F_GETFD 1
+-#define F_SETFD 2
+-#define F_GETFL 3
+-#define F_SETFL 4
+-
+-#define F_SETOWN 8
+-#define F_GETOWN 9
+-#define F_SETSIG 10
+-#define F_GETSIG 11
+-
+-#define F_GETLK 12
+-#define F_SETLK 13
+-#define F_SETLKW 14
+-
+-#define F_SETOWN_EX 15
+-#define F_GETOWN_EX 16
+-
+-#define F_GETOWNER_UIDS 17
+--- a/arch/or1k/bits/fenv.h
++++ /dev/null
+@@ -1,10 +0,0 @@
+-#define FE_ALL_EXCEPT 0
+-#define FE_TONEAREST 0
+-
+-typedef unsigned long fexcept_t;
+-
+-typedef struct {
+- unsigned long __cw;
+-} fenv_t;
+-
+-#define FE_DFL_ENV ((const fenv_t *) -1)
+--- a/arch/or1k/bits/ioctl.h
++++ /dev/null
+@@ -1,197 +0,0 @@
+-#define _IOC(a,b,c,d) ( ((a)<<30) | ((b)<<8) | (c) | ((d)<<16) )
+-#define _IOC_NONE 0U
+-#define _IOC_WRITE 1U
+-#define _IOC_READ 2U
+-
+-#define _IO(a,b) _IOC(_IOC_NONE,(a),(b),0)
+-#define _IOW(a,b,c) _IOC(_IOC_WRITE,(a),(b),sizeof(c))
+-#define _IOR(a,b,c) _IOC(_IOC_READ,(a),(b),sizeof(c))
+-#define _IOWR(a,b,c) _IOC(_IOC_READ|_IOC_WRITE,(a),(b),sizeof(c))
+-
+-#define TCGETS 0x5401
+-#define TCSETS 0x5402
+-#define TCSETSW 0x5403
+-#define TCSETSF 0x5404
+-#define TCGETA 0x5405
+-#define TCSETA 0x5406
+-#define TCSETAW 0x5407
+-#define TCSETAF 0x5408
+-#define TCSBRK 0x5409
+-#define TCXONC 0x540A
+-#define TCFLSH 0x540B
+-#define TIOCEXCL 0x540C
+-#define TIOCNXCL 0x540D
+-#define TIOCSCTTY 0x540E
+-#define TIOCGPGRP 0x540F
+-#define TIOCSPGRP 0x5410
+-#define TIOCOUTQ 0x5411
+-#define TIOCSTI 0x5412
+-#define TIOCGWINSZ 0x5413
+-#define TIOCSWINSZ 0x5414
+-#define TIOCMGET 0x5415
+-#define TIOCMBIS 0x5416
+-#define TIOCMBIC 0x5417
+-#define TIOCMSET 0x5418
+-#define TIOCGSOFTCAR 0x5419
+-#define TIOCSSOFTCAR 0x541A
+-#define FIONREAD 0x541B
+-#define TIOCINQ FIONREAD
+-#define TIOCLINUX 0x541C
+-#define TIOCCONS 0x541D
+-#define TIOCGSERIAL 0x541E
+-#define TIOCSSERIAL 0x541F
+-#define TIOCPKT 0x5420
+-#define FIONBIO 0x5421
+-#define TIOCNOTTY 0x5422
+-#define TIOCSETD 0x5423
+-#define TIOCGETD 0x5424
+-#define TCSBRKP 0x5425
+-#define TIOCTTYGSTRUCT 0x5426
+-#define TIOCSBRK 0x5427
+-#define TIOCCBRK 0x5428
+-#define TIOCGSID 0x5429
+-#define TIOCGPTN 0x80045430
+-#define TIOCSPTLCK 0x40045431
+-#define TCGETX 0x5432
+-#define TCSETX 0x5433
+-#define TCSETXF 0x5434
+-#define TCSETXW 0x5435
+-
+-#define FIONCLEX 0x5450
+-#define FIOCLEX 0x5451
+-#define FIOASYNC 0x5452
+-#define TIOCSERCONFIG 0x5453
+-#define TIOCSERGWILD 0x5454
+-#define TIOCSERSWILD 0x5455
+-#define TIOCGLCKTRMIOS 0x5456
+-#define TIOCSLCKTRMIOS 0x5457
+-#define TIOCSERGSTRUCT 0x5458
+-#define TIOCSERGETLSR 0x5459
+-#define TIOCSERGETMULTI 0x545A
+-#define TIOCSERSETMULTI 0x545B
+-
+-#define TIOCMIWAIT 0x545C
+-#define TIOCGICOUNT 0x545D
+-#define TIOCGHAYESESP 0x545E
+-#define TIOCSHAYESESP 0x545F
+-#define FIOQSIZE 0x5460
+-
+-#define TIOCPKT_DATA 0
+-#define TIOCPKT_FLUSHREAD 1
+-#define TIOCPKT_FLUSHWRITE 2
+-#define TIOCPKT_STOP 4
+-#define TIOCPKT_START 8
+-#define TIOCPKT_NOSTOP 16
+-#define TIOCPKT_DOSTOP 32
+-#define TIOCPKT_IOCTL 64
+-
+-#define TIOCSER_TEMT 0x01
+-
+-struct winsize {
+- unsigned short ws_row;
+- unsigned short ws_col;
+- unsigned short ws_xpixel;
+- unsigned short ws_ypixel;
+-};
+-
+-#define TIOCM_LE 0x001
+-#define TIOCM_DTR 0x002
+-#define TIOCM_RTS 0x004
+-#define TIOCM_ST 0x008
+-#define TIOCM_SR 0x010
+-#define TIOCM_CTS 0x020
+-#define TIOCM_CAR 0x040
+-#define TIOCM_RNG 0x080
+-#define TIOCM_DSR 0x100
+-#define TIOCM_CD TIOCM_CAR
+-#define TIOCM_RI TIOCM_RNG
+-#define TIOCM_OUT1 0x2000
+-#define TIOCM_OUT2 0x4000
+-#define TIOCM_LOOP 0x8000
+-#define TIOCM_MODEM_BITS TIOCM_OUT2
+-
+-#define N_TTY 0
+-#define N_SLIP 1
+-#define N_MOUSE 2
+-#define N_PPP 3
+-#define N_STRIP 4
+-#define N_AX25 5
+-#define N_X25 6
+-#define N_6PACK 7
+-#define N_MASC 8
+-#define N_R3964 9
+-#define N_PROFIBUS_FDL 10
+-#define N_IRDA 11
+-#define N_SMSBLOCK 12
+-#define N_HDLC 13
+-#define N_SYNC_PPP 14
+-#define N_HCI 15
+-
+-#define FIOSETOWN 0x8901
+-#define SIOCSPGRP 0x8902
+-#define FIOGETOWN 0x8903
+-#define SIOCGPGRP 0x8904
+-#define SIOCATMARK 0x8905
+-#define SIOCGSTAMP 0x8906
+-
+-#define SIOCADDRT 0x890B
+-#define SIOCDELRT 0x890C
+-#define SIOCRTMSG 0x890D
+-
+-#define SIOCGIFNAME 0x8910
+-#define SIOCSIFLINK 0x8911
+-#define SIOCGIFCONF 0x8912
+-#define SIOCGIFFLAGS 0x8913
+-#define SIOCSIFFLAGS 0x8914
+-#define SIOCGIFADDR 0x8915
+-#define SIOCSIFADDR 0x8916
+-#define SIOCGIFDSTADDR 0x8917
+-#define SIOCSIFDSTADDR 0x8918
+-#define SIOCGIFBRDADDR 0x8919
+-#define SIOCSIFBRDADDR 0x891a
+-#define SIOCGIFNETMASK 0x891b
+-#define SIOCSIFNETMASK 0x891c
+-#define SIOCGIFMETRIC 0x891d
+-#define SIOCSIFMETRIC 0x891e
+-#define SIOCGIFMEM 0x891f
+-#define SIOCSIFMEM 0x8920
+-#define SIOCGIFMTU 0x8921
+-#define SIOCSIFMTU 0x8922
+-#define SIOCSIFHWADDR 0x8924
+-#define SIOCGIFENCAP 0x8925
+-#define SIOCSIFENCAP 0x8926
+-#define SIOCGIFHWADDR 0x8927
+-#define SIOCGIFSLAVE 0x8929
+-#define SIOCSIFSLAVE 0x8930
+-#define SIOCADDMULTI 0x8931
+-#define SIOCDELMULTI 0x8932
+-#define SIOCGIFINDEX 0x8933
+-#define SIOGIFINDEX SIOCGIFINDEX
+-#define SIOCSIFPFLAGS 0x8934
+-#define SIOCGIFPFLAGS 0x8935
+-#define SIOCDIFADDR 0x8936
+-#define SIOCSIFHWBROADCAST 0x8937
+-#define SIOCGIFCOUNT 0x8938
+-
+-#define SIOCGIFBR 0x8940
+-#define SIOCSIFBR 0x8941
+-
+-#define SIOCGIFTXQLEN 0x8942
+-#define SIOCSIFTXQLEN 0x8943
+-
+-#define SIOCDARP 0x8953
+-#define SIOCGARP 0x8954
+-#define SIOCSARP 0x8955
+-
+-#define SIOCDRARP 0x8960
+-#define SIOCGRARP 0x8961
+-#define SIOCSRARP 0x8962
+-
+-#define SIOCGIFMAP 0x8970
+-#define SIOCSIFMAP 0x8971
+-
+-#define SIOCADDDLCI 0x8980
+-#define SIOCDELDLCI 0x8981
+-
+-#define SIOCDEVPRIVATE 0x89F0
+-#define SIOCPROTOPRIVATE 0x89E0
+--- a/arch/or1k/bits/mman.h
++++ b/arch/or1k/bits/mman.h
+@@ -37,6 +37,7 @@
+
+ #define MCL_CURRENT 1
+ #define MCL_FUTURE 2
++#define MCL_ONFAULT 4
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+ #define MADV_NORMAL 0
+--- a/arch/or1k/bits/shm.h
++++ /dev/null
+@@ -1,27 +0,0 @@
+-#define SHMLBA 4096
+-
+-struct shmid_ds {
+- struct ipc_perm shm_perm;
+- size_t shm_segsz;
+- time_t shm_atime;
+- int __unused1;
+- time_t shm_dtime;
+- int __unused2;
+- time_t shm_ctime;
+- int __unused3;
+- pid_t shm_cpid;
+- pid_t shm_lpid;
+- unsigned long shm_nattch;
+- unsigned long __pad1;
+- unsigned long __pad2;
+-};
+-
+-struct shminfo {
+- unsigned long shmmax, shmmin, shmmni, shmseg, shmall, __unused[4];
+-};
+-
+-struct shm_info {
+- int __used_ids;
+- unsigned long shm_tot, shm_rss, shm_swp;
+- unsigned long __swap_attempts, __swap_successes;
+-};
+--- a/arch/or1k/bits/socket.h
++++ /dev/null
+@@ -1,15 +0,0 @@
+-struct msghdr {
+- void *msg_name;
+- socklen_t msg_namelen;
+- struct iovec *msg_iov;
+- int msg_iovlen;
+- void *msg_control;
+- socklen_t msg_controllen;
+- int msg_flags;
+-};
+-
+-struct cmsghdr {
+- socklen_t cmsg_len;
+- int cmsg_level;
+- int cmsg_type;
+-};
+--- a/arch/or1k/bits/statfs.h
++++ /dev/null
+@@ -1,7 +0,0 @@
+-struct statfs {
+- unsigned long f_type, f_bsize;
+- fsblkcnt_t f_blocks, f_bfree, f_bavail;
+- fsfilcnt_t f_files, f_ffree;
+- fsid_t f_fsid;
+- unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
+-};
+--- a/arch/or1k/bits/stdarg.h
++++ /dev/null
+@@ -1,4 +0,0 @@
+-#define va_start(v,l) __builtin_va_start(v,l)
+-#define va_end(v) __builtin_va_end(v)
+-#define va_arg(v,l) __builtin_va_arg(v,l)
+-#define va_copy(d,s) __builtin_va_copy(d,s)
+--- a/arch/or1k/bits/syscall.h
++++ b/arch/or1k/bits/syscall.h
+@@ -265,6 +265,9 @@
+ #define __NR_memfd_create 279
+ #define __NR_bpf 280
+ #define __NR_execveat 281
++#define __NR_userfaultfd 282
++#define __NR_membarrier 283
++#define __NR_mlock2 284
+
+ #define SYS_io_setup __NR_io_setup
+ #define SYS_io_destroy __NR_io_destroy
+@@ -533,3 +536,6 @@
+ #define SYS_memfd_create __NR_memfd_create
+ #define SYS_bpf __NR_bpf
+ #define SYS_execveat __NR_execveat
++#define SYS_userfaultfd __NR_userfaultfd
++#define SYS_membarrier __NR_membarrier
++#define SYS_mlock2 __NR_mlock2
+--- a/arch/or1k/bits/termios.h
++++ /dev/null
+@@ -1,159 +0,0 @@
+-struct termios {
+- tcflag_t c_iflag;
+- tcflag_t c_oflag;
+- tcflag_t c_cflag;
+- tcflag_t c_lflag;
+- cc_t c_line;
+- cc_t c_cc[NCCS];
+- speed_t __c_ispeed;
+- speed_t __c_ospeed;
+-};
+-
+-#define VINTR 0
+-#define VQUIT 1
+-#define VERASE 2
+-#define VKILL 3
+-#define VEOF 4
+-#define VTIME 5
+-#define VMIN 6
+-#define VSWTC 7
+-#define VSTART 8
+-#define VSTOP 9
+-#define VSUSP 10
+-#define VEOL 11
+-#define VREPRINT 12
+-#define VDISCARD 13
+-#define VWERASE 14
+-#define VLNEXT 15
+-#define VEOL2 16
+-
+-#define IGNBRK 0000001
+-#define BRKINT 0000002
+-#define IGNPAR 0000004
+-#define PARMRK 0000010
+-#define INPCK 0000020
+-#define ISTRIP 0000040
+-#define INLCR 0000100
+-#define IGNCR 0000200
+-#define ICRNL 0000400
+-#define IUCLC 0001000
+-#define IXON 0002000
+-#define IXANY 0004000
+-#define IXOFF 0010000
+-#define IMAXBEL 0020000
+-#define IUTF8 0040000
+-
+-#define OPOST 0000001
+-#define OLCUC 0000002
+-#define ONLCR 0000004
+-#define OCRNL 0000010
+-#define ONOCR 0000020
+-#define ONLRET 0000040
+-#define OFILL 0000100
+-#define OFDEL 0000200
+-#define NLDLY 0000400
+-#define NL0 0000000
+-#define NL1 0000400
+-#define CRDLY 0003000
+-#define CR0 0000000
+-#define CR1 0001000
+-#define CR2 0002000
+-#define CR3 0003000
+-#define TABDLY 0014000
+-#define TAB0 0000000
+-#define TAB1 0004000
+-#define TAB2 0010000
+-#define TAB3 0014000
+-#define BSDLY 0020000
+-#define BS0 0000000
+-#define BS1 0020000
+-#define FFDLY 0100000
+-#define FF0 0000000
+-#define FF1 0100000
+-
+-#define VTDLY 0040000
+-#define VT0 0000000
+-#define VT1 0040000
+-
+-#define B0 0000000
+-#define B50 0000001
+-#define B75 0000002
+-#define B110 0000003
+-#define B134 0000004
+-#define B150 0000005
+-#define B200 0000006
+-#define B300 0000007
+-#define B600 0000010
+-#define B1200 0000011
+-#define B1800 0000012
+-#define B2400 0000013
+-#define B4800 0000014
+-#define B9600 0000015
+-#define B19200 0000016
+-#define B38400 0000017
+-
+-#define B57600 0010001
+-#define B115200 0010002
+-#define B230400 0010003
+-#define B460800 0010004
+-#define B500000 0010005
+-#define B576000 0010006
+-#define B921600 0010007
+-#define B1000000 0010010
+-#define B1152000 0010011
+-#define B1500000 0010012
+-#define B2000000 0010013
+-#define B2500000 0010014
+-#define B3000000 0010015
+-#define B3500000 0010016
+-#define B4000000 0010017
+-
+-#define CBAUD 0010017
+-
+-#define CSIZE 0000060
+-#define CS5 0000000
+-#define CS6 0000020
+-#define CS7 0000040
+-#define CS8 0000060
+-#define CSTOPB 0000100
+-#define CREAD 0000200
+-#define PARENB 0000400
+-#define PARODD 0001000
+-#define HUPCL 0002000
+-#define CLOCAL 0004000
+-
+-#define ISIG 0000001
+-#define ICANON 0000002
+-#define ECHO 0000010
+-#define ECHOE 0000020
+-#define ECHOK 0000040
+-#define ECHONL 0000100
+-#define NOFLSH 0000200
+-#define TOSTOP 0000400
+-#define IEXTEN 0100000
+-
+-#define ECHOCTL 0001000
+-#define ECHOPRT 0002000
+-#define ECHOKE 0004000
+-#define FLUSHO 0010000
+-#define PENDIN 0040000
+-
+-#define TCOOFF 0
+-#define TCOON 1
+-#define TCIOFF 2
+-#define TCION 3
+-
+-#define TCIFLUSH 0
+-#define TCOFLUSH 1
+-#define TCIOFLUSH 2
+-
+-#define TCSANOW 0
+-#define TCSADRAIN 1
+-#define TCSAFLUSH 2
+-
+-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+-#define CBAUDEX 0010000
+-#define CRTSCTS 020000000000
+-#define EXTPROC 0200000
+-#define XTABS 0014000
+-#endif
+--- a/arch/or1k/pthread_arch.h
++++ b/arch/or1k/pthread_arch.h
+@@ -14,5 +14,4 @@ static inline struct pthread *__pthread_
+ #define TLS_ABOVE_TP
+ #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread))
+
+-/* word-offset to 'pc' in mcontext_t */
+-#define CANCEL_REG_IP 32
++#define MC_PC regs.pc
+--- a/arch/powerpc/atomic.h
++++ /dev/null
+@@ -1,126 +0,0 @@
+-#ifndef _INTERNAL_ATOMIC_H
+-#define _INTERNAL_ATOMIC_H
+-
+-#include <stdint.h>
+-#include <endian.h>
+-
+-static inline int a_ctz_l(unsigned long x)
+-{
+- static const char debruijn32[32] = {
+- 0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
+- 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
+- };
+- return debruijn32[(x&-x)*0x076be629 >> 27];
+-}
+-
+-static inline int a_ctz_64(uint64_t x)
+-{
+- uint32_t y = x;
+- if (!y) {
+- y = x>>32;
+- return 32 + a_ctz_l(y);
+- }
+- return a_ctz_l(y);
+-}
+-
+-static inline int a_cas(volatile int *p, int t, int s)
+-{
+- __asm__("\n"
+- " sync\n"
+- "1: lwarx %0, 0, %4\n"
+- " cmpw %0, %2\n"
+- " bne 1f\n"
+- " stwcx. %3, 0, %4\n"
+- " bne- 1b\n"
+- " isync\n"
+- "1: \n"
+- : "=&r"(t), "+m"(*p) : "r"(t), "r"(s), "r"(p) : "cc", "memory" );
+- return t;
+-}
+-
+-static inline void *a_cas_p(volatile void *p, void *t, void *s)
+-{
+- return (void *)a_cas(p, (int)t, (int)s);
+-}
+-
+-static inline int a_swap(volatile int *x, int v)
+-{
+- int old;
+- do old = *x;
+- while (a_cas(x, old, v) != old);
+- return old;
+-}
+-
+-static inline int a_fetch_add(volatile int *x, int v)
+-{
+- int old;
+- do old = *x;
+- while (a_cas(x, old, old+v) != old);
+- return old;
+-}
+-
+-static inline void a_inc(volatile int *x)
+-{
+- a_fetch_add(x, 1);
+-}
+-
+-static inline void a_dec(volatile int *x)
+-{
+- a_fetch_add(x, -1);
+-}
+-
+-static inline void a_store(volatile int *p, int x)
+-{
+- __asm__ __volatile__ ("\n"
+- " sync\n"
+- " stw %1, %0\n"
+- " isync\n"
+- : "=m"(*p) : "r"(x) : "memory" );
+-}
+-
+-#define a_spin a_barrier
+-
+-static inline void a_barrier()
+-{
+- a_cas(&(int){0}, 0, 0);
+-}
+-
+-static inline void a_crash()
+-{
+- *(volatile char *)0=0;
+-}
+-
+-static inline void a_and(volatile int *p, int v)
+-{
+- int old;
+- do old = *p;
+- while (a_cas(p, old, old&v) != old);
+-}
+-
+-static inline void a_or(volatile int *p, int v)
+-{
+- int old;
+- do old = *p;
+- while (a_cas(p, old, old|v) != old);
+-}
+-
+-static inline void a_or_l(volatile void *p, long v)
+-{
+- a_or(p, v);
+-}
+-
+-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_and((int *)p, u.r[0]);
+- a_and((int *)p+1, u.r[1]);
+-}
+-
+-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_or((int *)p, u.r[0]);
+- a_or((int *)p+1, u.r[1]);
+-}
+-
+-#endif
+--- /dev/null
++++ b/arch/powerpc/atomic_arch.h
+@@ -0,0 +1,39 @@
++#define a_ll a_ll
++static inline int a_ll(volatile int *p)
++{
++ int v;
++ __asm__ __volatile__ ("lwarx %0, 0, %2" : "=r"(v) : "m"(*p), "r"(p));
++ return v;
++}
++
++#define a_sc a_sc
++static inline int a_sc(volatile int *p, int v)
++{
++ int r;
++ __asm__ __volatile__ (
++ "stwcx. %2, 0, %3 ; mfcr %0"
++ : "=r"(r), "=m"(*p) : "r"(v), "r"(p) : "memory", "cc");
++ return r & 0x20000000; /* "bit 2" of "cr0" (backwards bit order) */
++}
++
++#define a_barrier a_barrier
++static inline void a_barrier()
++{
++ __asm__ __volatile__ ("sync" : : : "memory");
++}
++
++#define a_pre_llsc a_barrier
++
++#define a_post_llsc a_post_llsc
++static inline void a_post_llsc()
++{
++ __asm__ __volatile__ ("isync" : : : "memory");
++}
++
++#define a_store a_store
++static inline void a_store(volatile int *p, int v)
++{
++ a_pre_llsc();
++ *p = v;
++ a_post_llsc();
++}
+--- a/arch/powerpc/bits/mman.h
++++ b/arch/powerpc/bits/mman.h
+@@ -4,6 +4,7 @@
+ #define PROT_READ 1
+ #define PROT_WRITE 2
+ #define PROT_EXEC 4
++#define PROT_SAO 0x10
+ #define PROT_GROWSDOWN 0x01000000
+ #define PROT_GROWSUP 0x02000000
+
+@@ -35,8 +36,9 @@
+ #define MS_INVALIDATE 2
+ #define MS_SYNC 4
+
+-#define MCL_CURRENT 1
+-#define MCL_FUTURE 2
++#define MCL_CURRENT 0x2000
++#define MCL_FUTURE 0x4000
++#define MCL_ONFAULT 0x8000
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+ #define MADV_NORMAL 0
+--- a/arch/powerpc/bits/statfs.h
++++ /dev/null
+@@ -1,7 +0,0 @@
+-struct statfs {
+- unsigned long f_type, f_bsize;
+- fsblkcnt_t f_blocks, f_bfree, f_bavail;
+- fsfilcnt_t f_files, f_ffree;
+- fsid_t f_fsid;
+- unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
+-};
+--- a/arch/powerpc/bits/stdarg.h
++++ /dev/null
+@@ -1,4 +0,0 @@
+-#define va_start(v,l) __builtin_va_start(v,l)
+-#define va_end(v) __builtin_va_end(v)
+-#define va_arg(v,l) __builtin_va_arg(v,l)
+-#define va_copy(d,s) __builtin_va_copy(d,s)
+--- a/arch/powerpc/bits/syscall.h
++++ b/arch/powerpc/bits/syscall.h
+@@ -194,23 +194,19 @@
+ #define __NR_vfork 189
+ #define __NR_ugetrlimit 190
+ #define __NR_readahead 191
+-#if !defined(__PPC64) || defined(__ABI32)
+ #define __NR_mmap2 192
+ #define __NR_truncate64 193
+ #define __NR_ftruncate64 194
+ #define __NR_stat64 195
+ #define __NR_lstat64 196
+ #define __NR_fstat64 197
+-#endif
+ #define __NR_pciconfig_read 198
+ #define __NR_pciconfig_write 199
+ #define __NR_pciconfig_iobase 200
+ #define __NR_multiplexer 201
+ #define __NR_getdents64 202
+ #define __NR_pivot_root 203
+-#if !defined(__PPC64) || defined(__ABI32)
+ #define __NR_fcntl64 204
+-#endif
+ #define __NR_madvise 205
+ #define __NR_mincore 206
+ #define __NR_gettid 207
+@@ -231,9 +227,7 @@
+ #define __NR_sched_setaffinity 222
+ #define __NR_sched_getaffinity 223
+ #define __NR_tuxcall 225
+-#if !defined(__PPC64) || defined(__ABI32)
+ #define __NR_sendfile64 226
+-#endif
+ #define __NR_io_setup 227
+ #define __NR_io_destroy 228
+ #define __NR_io_getevents 229
+@@ -261,9 +255,7 @@
+ #define __NR_utimes 251
+ #define __NR_statfs64 252
+ #define __NR_fstatfs64 253
+-#if !defined(__PPC64) || defined(__ABI32)
+ #define __NR_fadvise64_64 254
+-#endif
+ #define __NR_rtas 255
+ #define __NR_sys_debug_setcontext 256
+ #define __NR_migrate_pages 258
+@@ -299,11 +291,7 @@
+ #define __NR_mknodat 288
+ #define __NR_fchownat 289
+ #define __NR_futimesat 290
+-#if defined(__PPC64) && !defined(__ABI32)
+-#define __NR_newfstatat 291
+-#else
+ #define __NR_fstatat64 291
+-#endif
+ #define __NR_unlinkat 292
+ #define __NR_renameat 293
+ #define __NR_linkat 294
+@@ -376,6 +364,10 @@
+ #define __NR_memfd_create 360
+ #define __NR_bpf 361
+ #define __NR_execveat 362
++#define __NR_switch_endian 363
++#define __NR_userfaultfd 364
++#define __NR_membarrier 365
++#define __NR_mlock2 378
+
+ /*
+ * repeated with SYS prefix
+@@ -576,23 +568,19 @@
+ #define SYS_vfork 189
+ #define SYS_ugetrlimit 190
+ #define SYS_readahead 191
+-#if !defined(__PPC64) || defined(__ABI32)
+ #define SYS_mmap2 192
+ #define SYS_truncate64 193
+ #define SYS_ftruncate64 194
+ #define SYS_stat64 195
+ #define SYS_lstat64 196
+ #define SYS_fstat64 197
+-#endif
+ #define SYS_pciconfig_read 198
+ #define SYS_pciconfig_write 199
+ #define SYS_pciconfig_iobase 200
+ #define SYS_multiplexer 201
+ #define SYS_getdents64 202
+ #define SYS_pivot_root 203
+-#if !defined(__PPC64) || defined(__ABI32)
+ #define SYS_fcntl64 204
+-#endif
+ #define SYS_madvise 205
+ #define SYS_mincore 206
+ #define SYS_gettid 207
+@@ -613,9 +601,7 @@
+ #define SYS_sched_setaffinity 222
+ #define SYS_sched_getaffinity 223
+ #define SYS_tuxcall 225
+-#if !defined(__PPC64) || defined(__ABI32)
+ #define SYS_sendfile64 226
+-#endif
+ #define SYS_io_setup 227
+ #define SYS_io_destroy 228
+ #define SYS_io_getevents 229
+@@ -643,9 +629,7 @@
+ #define SYS_utimes 251
+ #define SYS_statfs64 252
+ #define SYS_fstatfs64 253
+-#if !defined(__PPC64) || defined(__ABI32)
+ #define SYS_fadvise64_64 254
+-#endif
+ #define SYS_rtas 255
+ #define SYS_sys_debug_setcontext 256
+ #define SYS_migrate_pages 258
+@@ -681,11 +665,7 @@
+ #define SYS_mknodat 288
+ #define SYS_fchownat 289
+ #define SYS_futimesat 290
+-#if defined(__PPC64) && !defined(__ABI32)
+-#define SYS_newfstatat 291
+-#else
+ #define SYS_fstatat64 291
+-#endif
+ #define SYS_unlinkat 292
+ #define SYS_renameat 293
+ #define SYS_linkat 294
+@@ -758,3 +738,7 @@
+ #define SYS_memfd_create 360
+ #define SYS_bpf 361
+ #define SYS_execveat 362
++#define SYS_switch_endian 363
++#define SYS_userfaultfd 364
++#define SYS_membarrier 365
++#define SYS_mlock2 378
+--- a/arch/powerpc/pthread_arch.h
++++ b/arch/powerpc/pthread_arch.h
+@@ -15,9 +15,8 @@ static inline struct pthread *__pthread_
+
+ #define DTP_OFFSET 0x8000
+
+-// offset of the PC register in mcontext_t, divided by the system wordsize
+ // the kernel calls the ip "nip", it's the first saved value after the 32
+ // GPRs.
+-#define CANCEL_REG_IP 32
++#define MC_PC gregs[32]
+
+ #define CANARY canary_at_end
+--- a/arch/sh/atomic.h
++++ /dev/null
+@@ -1,168 +0,0 @@
+-#ifndef _INTERNAL_ATOMIC_H
+-#define _INTERNAL_ATOMIC_H
+-
+-#include <stdint.h>
+-
+-static inline int a_ctz_l(unsigned long x)
+-{
+- static const char debruijn32[32] = {
+- 0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
+- 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
+- };
+- return debruijn32[(x&-x)*0x076be629 >> 27];
+-}
+-
+-static inline int a_ctz_64(uint64_t x)
+-{
+- uint32_t y = x;
+- if (!y) {
+- y = x>>32;
+- return 32 + a_ctz_l(y);
+- }
+- return a_ctz_l(y);
+-}
+-
+-#define LLSC_CLOBBERS "r0", "t", "memory"
+-#define LLSC_START(mem) "synco\n" \
+- "0: movli.l @" mem ", r0\n"
+-#define LLSC_END(mem) \
+- "1: movco.l r0, @" mem "\n" \
+- " bf 0b\n" \
+- " synco\n"
+-
+-static inline int __sh_cas_llsc(volatile int *p, int t, int s)
+-{
+- int old;
+- __asm__ __volatile__(
+- LLSC_START("%1")
+- " mov r0, %0\n"
+- " cmp/eq %0, %2\n"
+- " bf 1f\n"
+- " mov %3, r0\n"
+- LLSC_END("%1")
+- : "=&r"(old) : "r"(p), "r"(t), "r"(s) : LLSC_CLOBBERS);
+- return old;
+-}
+-
+-static inline int __sh_swap_llsc(volatile int *x, int v)
+-{
+- int old;
+- __asm__ __volatile__(
+- LLSC_START("%1")
+- " mov r0, %0\n"
+- " mov %2, r0\n"
+- LLSC_END("%1")
+- : "=&r"(old) : "r"(x), "r"(v) : LLSC_CLOBBERS);
+- return old;
+-}
+-
+-static inline int __sh_fetch_add_llsc(volatile int *x, int v)
+-{
+- int old;
+- __asm__ __volatile__(
+- LLSC_START("%1")
+- " mov r0, %0\n"
+- " add %2, r0\n"
+- LLSC_END("%1")
+- : "=&r"(old) : "r"(x), "r"(v) : LLSC_CLOBBERS);
+- return old;
+-}
+-
+-static inline void __sh_store_llsc(volatile int *p, int x)
+-{
+- __asm__ __volatile__(
+- " synco\n"
+- " mov.l %1, @%0\n"
+- " synco\n"
+- : : "r"(p), "r"(x) : "memory");
+-}
+-
+-static inline void __sh_and_llsc(volatile int *x, int v)
+-{
+- __asm__ __volatile__(
+- LLSC_START("%0")
+- " and %1, r0\n"
+- LLSC_END("%0")
+- : : "r"(x), "r"(v) : LLSC_CLOBBERS);
+-}
+-
+-static inline void __sh_or_llsc(volatile int *x, int v)
+-{
+- __asm__ __volatile__(
+- LLSC_START("%0")
+- " or %1, r0\n"
+- LLSC_END("%0")
+- : : "r"(x), "r"(v) : LLSC_CLOBBERS);
+-}
+-
+-#ifdef __SH4A__
+-#define a_cas(p,t,s) __sh_cas_llsc(p,t,s)
+-#define a_swap(x,v) __sh_swap_llsc(x,v)
+-#define a_fetch_add(x,v) __sh_fetch_add_llsc(x, v)
+-#define a_store(x,v) __sh_store_llsc(x, v)
+-#define a_and(x,v) __sh_and_llsc(x, v)
+-#define a_or(x,v) __sh_or_llsc(x, v)
+-#else
+-
+-int __sh_cas(volatile int *, int, int);
+-int __sh_swap(volatile int *, int);
+-int __sh_fetch_add(volatile int *, int);
+-void __sh_store(volatile int *, int);
+-void __sh_and(volatile int *, int);
+-void __sh_or(volatile int *, int);
+-
+-#define a_cas(p,t,s) __sh_cas(p,t,s)
+-#define a_swap(x,v) __sh_swap(x,v)
+-#define a_fetch_add(x,v) __sh_fetch_add(x, v)
+-#define a_store(x,v) __sh_store(x, v)
+-#define a_and(x,v) __sh_and(x, v)
+-#define a_or(x,v) __sh_or(x, v)
+-#endif
+-
+-static inline void *a_cas_p(volatile void *p, void *t, void *s)
+-{
+- return (void *)a_cas(p, (int)t, (int)s);
+-}
+-
+-static inline void a_inc(volatile int *x)
+-{
+- a_fetch_add(x, 1);
+-}
+-
+-static inline void a_dec(volatile int *x)
+-{
+- a_fetch_add(x, -1);
+-}
+-
+-#define a_spin a_barrier
+-
+-static inline void a_barrier()
+-{
+- a_cas(&(int){0}, 0, 0);
+-}
+-
+-static inline void a_crash()
+-{
+- *(volatile char *)0=0;
+-}
+-
+-static inline void a_or_l(volatile void *p, long v)
+-{
+- a_or(p, v);
+-}
+-
+-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_and((int *)p, u.r[0]);
+- a_and((int *)p+1, u.r[1]);
+-}
+-
+-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+-{
+- union { uint64_t v; uint32_t r[2]; } u = { v };
+- a_or((int *)p, u.r[0]);
+- a_or((int *)p+1, u.r[1]);
+-}
+-
+-#endif
+--- /dev/null
++++ b/arch/sh/atomic_arch.h
+@@ -0,0 +1,46 @@
++#if defined(__SH4A__)
++
++#define a_ll a_ll
++static inline int a_ll(volatile int *p)
++{
++ int v;
++ __asm__ __volatile__ ("movli.l @%1, %0" : "=z"(v) : "r"(p), "m"(*p));
++ return v;
++}
++
++#define a_sc a_sc
++static inline int a_sc(volatile int *p, int v)
++{
++ int r;
++ __asm__ __volatile__ (
++ "movco.l %2, @%3 ; movt %0"
++ : "=r"(r), "=m"(*p) : "z"(v), "r"(p) : "memory", "cc");
++ return r;
++}
++
++#define a_barrier a_barrier
++static inline void a_barrier()
++{
++ __asm__ __volatile__ ("synco" : : "memory");
++}
++
++#define a_pre_llsc a_barrier
++#define a_post_llsc a_barrier
++
++#else
++
++#define a_cas a_cas
++__attribute__((__visibility__("hidden"))) extern const void *__sh_cas_ptr;
++static inline int a_cas(volatile int *p, int t, int s)
++{
++ register int r1 __asm__("r1");
++ register int r2 __asm__("r2") = t;
++ register int r3 __asm__("r3") = s;
++ __asm__ __volatile__ (
++ "jsr @%4 ; nop"
++ : "=r"(r1), "+r"(r3) : "z"(p), "r"(r2), "r"(__sh_cas_ptr)
++ : "memory", "pr", "cc");
++ return r3;
++}
++
++#endif
+--- a/arch/sh/bits/errno.h
++++ /dev/null
+@@ -1,134 +0,0 @@
+-#define EPERM 1
+-#define ENOENT 2
+-#define ESRCH 3
+-#define EINTR 4
+-#define EIO 5
+-#define ENXIO 6
+-#define E2BIG 7
+-#define ENOEXEC 8
+-#define EBADF 9
+-#define ECHILD 10
+-#define EAGAIN 11
+-#define ENOMEM 12
+-#define EACCES 13
+-#define EFAULT 14
+-#define ENOTBLK 15
+-#define EBUSY 16
+-#define EEXIST 17
+-#define EXDEV 18
+-#define ENODEV 19
+-#define ENOTDIR 20
+-#define EISDIR 21
+-#define EINVAL 22
+-#define ENFILE 23
+-#define EMFILE 24
+-#define ENOTTY 25
+-#define ETXTBSY 26
+-#define EFBIG 27
+-#define ENOSPC 28
+-#define ESPIPE 29
+-#define EROFS 30
+-#define EMLINK 31
+-#define EPIPE 32
+-#define EDOM 33
+-#define ERANGE 34
+-#define EDEADLK 35
+-#define ENAMETOOLONG 36
+-#define ENOLCK 37
+-#define ENOSYS 38
+-#define ENOTEMPTY 39
+-#define ELOOP 40
+-#define EWOULDBLOCK EAGAIN
+-#define ENOMSG 42
+-#define EIDRM 43
+-#define ECHRNG 44
+-#define EL2NSYNC 45
+-#define EL3HLT 46
+-#define EL3RST 47
+-#define ELNRNG 48
+-#define EUNATCH 49
+-#define ENOCSI 50
+-#define EL2HLT 51
+-#define EBADE 52
+-#define EBADR 53
+-#define EXFULL 54
+-#define ENOANO 55
+-#define EBADRQC 56
+-#define EBADSLT 57
+-#define EDEADLOCK EDEADLK
+-#define EBFONT 59
+-#define ENOSTR 60
+-#define ENODATA 61
+-#define ETIME 62
+-#define ENOSR 63
+-#define ENONET 64
+-#define ENOPKG 65
+-#define EREMOTE 66
+-#define ENOLINK 67
+-#define EADV 68
+-#define ESRMNT 69
+-#define ECOMM 70
+-#define EPROTO 71
+-#define EMULTIHOP 72
+-#define EDOTDOT 73
+-#define EBADMSG 74
+-#define EOVERFLOW 75
+-#define ENOTUNIQ 76
+-#define EBADFD 77
+-#define EREMCHG 78
+-#define ELIBACC 79
+-#define ELIBBAD 80
+-#define ELIBSCN 81
+-#define ELIBMAX 82
+-#define ELIBEXEC 83
+-#define EILSEQ 84
+-#define ERESTART 85
+-#define ESTRPIPE 86
+-#define EUSERS 87
+-#define ENOTSOCK 88
+-#define EDESTADDRREQ 89
+-#define EMSGSIZE 90
+-#define EPROTOTYPE 91
+-#define ENOPROTOOPT 92
+-#define EPROTONOSUPPORT 93
+-#define ESOCKTNOSUPPORT 94
+-#define EOPNOTSUPP 95
+-#define ENOTSUP EOPNOTSUPP
+-#define EPFNOSUPPORT 96
+-#define EAFNOSUPPORT 97
+-#define EADDRINUSE 98
+-#define EADDRNOTAVAIL 99
+-#define ENETDOWN 100
+-#define ENETUNREACH 101
+-#define ENETRESET 102
+-#define ECONNABORTED 103
+-#define ECONNRESET 104
+-#define ENOBUFS 105
+-#define EISCONN 106
+-#define ENOTCONN 107
+-#define ESHUTDOWN 108
+-#define ETOOMANYREFS 109
+-#define ETIMEDOUT 110
+-#define ECONNREFUSED 111
+-#define EHOSTDOWN 112
+-#define EHOSTUNREACH 113
+-#define EALREADY 114
+-#define EINPROGRESS 115
+-#define ESTALE 116
+-#define EUCLEAN 117
+-#define ENOTNAM 118
+-#define ENAVAIL 119
+-#define EISNAM 120
+-#define EREMOTEIO 121
+-#define EDQUOT 122
+-#define ENOMEDIUM 123
+-#define EMEDIUMTYPE 124
+-#define ECANCELED 125
+-#define ENOKEY 126
+-#define EKEYEXPIRED 127
+-#define EKEYREVOKED 128
+-#define EKEYREJECTED 129
+-#define EOWNERDEAD 130
+-#define ENOTRECOVERABLE 131
+-#define ERFKILL 132
+-#define EHWPOISON 133
+--- a/arch/sh/bits/fcntl.h
++++ /dev/null
+@@ -1,40 +0,0 @@
+-#define O_CREAT 0100
+-#define O_EXCL 0200
+-#define O_NOCTTY 0400
+-#define O_TRUNC 01000
+-#define O_APPEND 02000
+-#define O_NONBLOCK 04000
+-#define O_DSYNC 010000
+-#define O_SYNC 04010000
+-#define O_RSYNC 04010000
+-#define O_DIRECTORY 0200000
+-#define O_NOFOLLOW 0400000
+-#define O_CLOEXEC 02000000
+-
+-#define O_ASYNC 020000
+-#define O_DIRECT 040000
+-#define O_LARGEFILE 0100000
+-#define O_NOATIME 01000000
+-#define O_PATH 010000000
+-#define O_TMPFILE 020200000
+-#define O_NDELAY O_NONBLOCK
+-
+-#define F_DUPFD 0
+-#define F_GETFD 1
+-#define F_SETFD 2
+-#define F_GETFL 3
+-#define F_SETFL 4
+-
+-#define F_SETOWN 8
+-#define F_GETOWN 9
+-#define F_SETSIG 10
+-#define F_GETSIG 11
+-
+-#define F_GETLK 12
+-#define F_SETLK 13
+-#define F_SETLKW 14
+-
+-#define F_SETOWN_EX 15
+-#define F_GETOWN_EX 16
+-
+-#define F_GETOWNER_UIDS 17
+--- a/arch/sh/bits/ipc.h
++++ /dev/null
+@@ -1,14 +0,0 @@
+-struct ipc_perm
+-{
+- key_t __ipc_perm_key;
+- uid_t uid;
+- gid_t gid;
+- uid_t cuid;
+- gid_t cgid;
+- mode_t mode;
+- int __ipc_perm_seq;
+- long __pad1;
+- long __pad2;
+-};
+-
+-#define IPC_64 0x100
+--- a/arch/sh/bits/mman.h
++++ b/arch/sh/bits/mman.h
+@@ -38,6 +38,7 @@
+
+ #define MCL_CURRENT 1
+ #define MCL_FUTURE 2
++#define MCL_ONFAULT 4
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+ #define MADV_NORMAL 0
+--- a/arch/sh/bits/msg.h
++++ /dev/null
+@@ -1,16 +0,0 @@
+-struct msqid_ds
+-{
+- struct ipc_perm msg_perm;
+- time_t msg_stime;
+- int __unused1;
+- time_t msg_rtime;
+- int __unused2;
+- time_t msg_ctime;
+- int __unused3;
+- unsigned long msg_cbytes;
+- msgqnum_t msg_qnum;
+- msglen_t msg_qbytes;
+- pid_t msg_lspid;
+- pid_t msg_lrpid;
+- unsigned long __unused[2];
+-};
+--- a/arch/sh/bits/sem.h
++++ /dev/null
+@@ -1,16 +0,0 @@
+-struct semid_ds {
+- struct ipc_perm sem_perm;
+- time_t sem_otime;
+- time_t __unused1;
+- time_t sem_ctime;
+- time_t __unused2;
+-#if __BYTE_ORDER == __LITTLE_ENDIAN
+- unsigned short sem_nsems;
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+-#else
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+- unsigned short sem_nsems;
+-#endif
+- time_t __unused3;
+- time_t __unused4;
+-};
+--- a/arch/sh/bits/socket.h
++++ /dev/null
+@@ -1,17 +0,0 @@
+-struct msghdr
+-{
+- void *msg_name;
+- socklen_t msg_namelen;
+- struct iovec *msg_iov;
+- int msg_iovlen;
+- void *msg_control;
+- socklen_t msg_controllen;
+- int msg_flags;
+-};
+-
+-struct cmsghdr
+-{
+- socklen_t cmsg_len;
+- int cmsg_level;
+- int cmsg_type;
+-};
+--- a/arch/sh/bits/statfs.h
++++ /dev/null
+@@ -1,7 +0,0 @@
+-struct statfs {
+- unsigned long f_type, f_bsize;
+- fsblkcnt_t f_blocks, f_bfree, f_bavail;
+- fsfilcnt_t f_files, f_ffree;
+- fsid_t f_fsid;
+- unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
+-};
+--- a/arch/sh/bits/stdarg.h
++++ /dev/null
+@@ -1,4 +0,0 @@
+-#define va_start(v,l) __builtin_va_start(v,l)
+-#define va_end(v) __builtin_va_end(v)
+-#define va_arg(v,l) __builtin_va_arg(v,l)
+-#define va_copy(d,s) __builtin_va_copy(d,s)
+--- a/arch/sh/bits/termios.h
++++ /dev/null
+@@ -1,160 +0,0 @@
+-struct termios
+-{
+- tcflag_t c_iflag;
+- tcflag_t c_oflag;
+- tcflag_t c_cflag;
+- tcflag_t c_lflag;
+- cc_t c_line;
+- cc_t c_cc[NCCS];
+- speed_t __c_ispeed;
+- speed_t __c_ospeed;
+-};
+-
+-#define VINTR 0
+-#define VQUIT 1
+-#define VERASE 2
+-#define VKILL 3
+-#define VEOF 4
+-#define VTIME 5
+-#define VMIN 6
+-#define VSWTC 7
+-#define VSTART 8
+-#define VSTOP 9
+-#define VSUSP 10
+-#define VEOL 11
+-#define VREPRINT 12
+-#define VDISCARD 13
+-#define VWERASE 14
+-#define VLNEXT 15
+-#define VEOL2 16
+-
+-#define IGNBRK 0000001
+-#define BRKINT 0000002
+-#define IGNPAR 0000004
+-#define PARMRK 0000010
+-#define INPCK 0000020
+-#define ISTRIP 0000040
+-#define INLCR 0000100
+-#define IGNCR 0000200
+-#define ICRNL 0000400
+-#define IUCLC 0001000
+-#define IXON 0002000
+-#define IXANY 0004000
+-#define IXOFF 0010000
+-#define IMAXBEL 0020000
+-#define IUTF8 0040000
+-
+-#define OPOST 0000001
+-#define OLCUC 0000002
+-#define ONLCR 0000004
+-#define OCRNL 0000010
+-#define ONOCR 0000020
+-#define ONLRET 0000040
+-#define OFILL 0000100
+-#define OFDEL 0000200
+-#define NLDLY 0000400
+-#define NL0 0000000
+-#define NL1 0000400
+-#define CRDLY 0003000
+-#define CR0 0000000
+-#define CR1 0001000
+-#define CR2 0002000
+-#define CR3 0003000
+-#define TABDLY 0014000
+-#define TAB0 0000000
+-#define TAB1 0004000
+-#define TAB2 0010000
+-#define TAB3 0014000
+-#define BSDLY 0020000
+-#define BS0 0000000
+-#define BS1 0020000
+-#define FFDLY 0100000
+-#define FF0 0000000
+-#define FF1 0100000
+-
+-#define VTDLY 0040000
+-#define VT0 0000000
+-#define VT1 0040000
+-
+-#define B0 0000000
+-#define B50 0000001
+-#define B75 0000002
+-#define B110 0000003
+-#define B134 0000004
+-#define B150 0000005
+-#define B200 0000006
+-#define B300 0000007
+-#define B600 0000010
+-#define B1200 0000011
+-#define B1800 0000012
+-#define B2400 0000013
+-#define B4800 0000014
+-#define B9600 0000015
+-#define B19200 0000016
+-#define B38400 0000017
+-
+-#define B57600 0010001
+-#define B115200 0010002
+-#define B230400 0010003
+-#define B460800 0010004
+-#define B500000 0010005
+-#define B576000 0010006
+-#define B921600 0010007
+-#define B1000000 0010010
+-#define B1152000 0010011
+-#define B1500000 0010012
+-#define B2000000 0010013
+-#define B2500000 0010014
+-#define B3000000 0010015
+-#define B3500000 0010016
+-#define B4000000 0010017
+-
+-#define CBAUD 0010017
+-
+-#define CSIZE 0000060
+-#define CS5 0000000
+-#define CS6 0000020
+-#define CS7 0000040
+-#define CS8 0000060
+-#define CSTOPB 0000100
+-#define CREAD 0000200
+-#define PARENB 0000400
+-#define PARODD 0001000
+-#define HUPCL 0002000
+-#define CLOCAL 0004000
+-
+-#define ISIG 0000001
+-#define ICANON 0000002
+-#define ECHO 0000010
+-#define ECHOE 0000020
+-#define ECHOK 0000040
+-#define ECHONL 0000100
+-#define NOFLSH 0000200
+-#define TOSTOP 0000400
+-#define IEXTEN 0100000
+-
+-#define ECHOCTL 0001000
+-#define ECHOPRT 0002000
+-#define ECHOKE 0004000
+-#define FLUSHO 0010000
+-#define PENDIN 0040000
+-
+-#define TCOOFF 0
+-#define TCOON 1
+-#define TCIOFF 2
+-#define TCION 3
+-
+-#define TCIFLUSH 0
+-#define TCOFLUSH 1
+-#define TCIOFLUSH 2
+-
+-#define TCSANOW 0
+-#define TCSADRAIN 1
+-#define TCSAFLUSH 2
+-
+-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+-#define CBAUDEX 0010000
+-#define CRTSCTS 020000000000
+-#define EXTPROC 0200000
+-#define XTABS 0014000
+-#endif
+--- a/arch/sh/crt_arch.h
++++ b/arch/sh/crt_arch.h
+@@ -22,7 +22,8 @@ START ": \n"
+ " mov.l 1f, r5 \n"
+ " mov.l 1f+4, r6 \n"
+ " add r0, r5 \n"
+-" bsr __fdpic_fixup \n"
++" mov.l 4f, r1 \n"
++"5: bsrf r1 \n"
+ " add r0, r6 \n"
+ " mov r0, r12 \n"
+ #endif
+@@ -31,11 +32,16 @@ START ": \n"
+ " mov.l r9, @-r15 \n"
+ " mov.l r8, @-r15 \n"
+ " mov #-16, r0 \n"
+-" bsr " START "_c \n"
++" mov.l 2f, r1 \n"
++"3: bsrf r1 \n"
+ " and r0, r15 \n"
+ ".align 2 \n"
+ "1: .long __ROFIXUP_LIST__@PCREL \n"
+ " .long __ROFIXUP_END__@PCREL + 4 \n"
++"2: .long " START "_c@PCREL - (3b+4-.) \n"
++#ifndef SHARED
++"4: .long __fdpic_fixup@PCREL - (5b+4-.) \n"
++#endif
+ );
+
+ #ifndef SHARED
+@@ -53,13 +59,14 @@ START ": \n"
+ " add r0, r5 \n"
+ " mov r15, r4 \n"
+ " mov #-16, r0 \n"
+-" and r0, r15 \n"
+-" bsr " START "_c \n"
+-" nop \n"
++" mov.l 2f, r1 \n"
++"3: bsrf r1 \n"
++" and r0, r15 \n"
+ ".align 2 \n"
+ ".weak _DYNAMIC \n"
+ ".hidden _DYNAMIC \n"
+ "1: .long _DYNAMIC-. \n"
++"2: .long " START "_c@PCREL - (3b+4-.) \n"
+ );
+
+ #endif
+--- a/arch/sh/pthread_arch.h
++++ b/arch/sh/pthread_arch.h
+@@ -8,4 +8,4 @@ static inline struct pthread *__pthread_
+ #define TLS_ABOVE_TP
+ #define TP_ADJ(p) ((char *)(p) + sizeof(struct pthread) - 8)
+
+-#define CANCEL_REG_IP 17
++#define MC_PC sc_pc
+--- a/arch/sh/reloc.h
++++ b/arch/sh/reloc.h
+@@ -32,6 +32,8 @@
+ #define REL_DTPOFF R_SH_TLS_DTPOFF32
+ #define REL_TPOFF R_SH_TLS_TPOFF32
+
++#define DL_NOMMU_SUPPORT 1
++
+ #if __SH_FDPIC__
+ #define REL_FUNCDESC R_SH_FUNCDESC
+ #define REL_FUNCDESC_VAL R_SH_FUNCDESC_VALUE
+--- a/arch/sh/src/__fpscr_values.c
++++ /dev/null
+@@ -1,5 +0,0 @@
+-#include "libc.h"
+-
+-/* used by gcc for switching the FPU between single and double precision */
+-//const unsigned long __fpscr_values[2] ATTR_LIBC_VISIBILITY = { 0, 0x80000 };
+-
+--- a/arch/sh/src/__set_thread_area.c
++++ /dev/null
+@@ -1,34 +0,0 @@
+-#include "pthread_impl.h"
+-#include "libc.h"
+-#include "sh_atomic.h"
+-#include <elf.h>
+-
+-/* Also perform sh-specific init */
+-
+-#define CPU_HAS_LLSC 0x0040
+-
+-__attribute__((__visibility__("hidden"))) unsigned __sh_atomic_model, __sh_nommu;
+-
+-int __set_thread_area(void *p)
+-{
+- size_t *aux;
+- __asm__ __volatile__ ( "ldc %0, gbr" : : "r"(p) : "memory" );
+-#ifndef __SH4A__
+- if (__hwcap & CPU_HAS_LLSC) {
+- __sh_atomic_model = SH_A_LLSC;
+- return 0;
+- }
+-#if !defined(__SH3__) && !defined(__SH4__)
+- for (aux=libc.auxv; *aux; aux+=2) {
+- if (*aux != AT_PLATFORM) continue;
+- const char *s = (void *)aux[1];
+- if (s[0]!='s' || s[1]!='h' || s[2]!='2' || s[3]-'0'<10u) break;
+- __sh_atomic_model = SH_A_IMASK;
+- __sh_nommu = 1;
+- return 0;
+- }
+-#endif
+- /* __sh_atomic_model = SH_A_GUSA; */ /* 0, default */
+-#endif
+- return 0;
+-}
+--- a/arch/sh/src/__shcall.c
++++ /dev/null
+@@ -1,5 +0,0 @@
+-__attribute__((__visibility__("hidden")))
+-int __shcall(void *arg, int (*func)(void *))
+-{
+- return func(arg);
+-}
+--- a/arch/sh/src/__unmapself.c
++++ /dev/null
+@@ -1,24 +0,0 @@
+-#include "pthread_impl.h"
+-
+-void __unmapself_sh_mmu(void *, size_t);
+-void __unmapself_sh_nommu(void *, size_t);
+-
+-#if !defined(__SH3__) && !defined(__SH4__)
+-#define __unmapself __unmapself_sh_nommu
+-#include "dynlink.h"
+-#undef CRTJMP
+-#define CRTJMP(pc,sp) __asm__ __volatile__( \
+- "mov.l @%0+,r0 ; mov.l @%0,r12 ; jmp @r0 ; mov %1,r15" \
+- : : "r"(pc), "r"(sp) : "r0", "memory" )
+-#include "../../../src/thread/__unmapself.c"
+-#undef __unmapself
+-extern __attribute__((__visibility__("hidden"))) unsigned __sh_nommu;
+-#else
+-#define __sh_nommu 0
+-#endif
+-
+-void __unmapself(void *base, size_t size)
+-{
+- if (__sh_nommu) __unmapself_sh_nommu(base, size);
+- else __unmapself_sh_mmu(base, size);
+-}
+--- a/arch/sh/src/atomic.c
++++ /dev/null
+@@ -1,158 +0,0 @@
+-#ifndef __SH4A__
+-
+-#include "sh_atomic.h"
+-#include "atomic.h"
+-#include "libc.h"
+-
+-static inline unsigned mask()
+-{
+- unsigned sr;
+- __asm__ __volatile__ ( "\n"
+- " stc sr,r0 \n"
+- " mov r0,%0 \n"
+- " or #0xf0,r0 \n"
+- " ldc r0,sr \n"
+- : "=&r"(sr) : : "memory", "r0" );
+- return sr;
+-}
+-
+-static inline void unmask(unsigned sr)
+-{
+- __asm__ __volatile__ ( "ldc %0,sr" : : "r"(sr) : "memory" );
+-}
+-
+-/* gusa is a hack in the kernel which lets you create a sequence of instructions
+- * which will be restarted if the process is preempted in the middle of the
+- * sequence. It will do for implementing atomics on non-smp systems. ABI is:
+- * r0 = address of first instruction after the atomic sequence
+- * r1 = original stack pointer
+- * r15 = -1 * length of atomic sequence in bytes
+- */
+-#define GUSA_CLOBBERS "r0", "r1", "memory"
+-#define GUSA_START(mem,old,nop) \
+- " .align 2\n" \
+- " mova 1f, r0\n" \
+- nop \
+- " mov r15, r1\n" \
+- " mov #(0f-1f), r15\n" \
+- "0: mov.l @" mem ", " old "\n"
+-/* the target of mova must be 4 byte aligned, so we may need a nop */
+-#define GUSA_START_ODD(mem,old) GUSA_START(mem,old,"")
+-#define GUSA_START_EVEN(mem,old) GUSA_START(mem,old,"\tnop\n")
+-#define GUSA_END(mem,new) \
+- " mov.l " new ", @" mem "\n" \
+- "1: mov r1, r15\n"
+-
+-int __sh_cas(volatile int *p, int t, int s)
+-{
+- if (__sh_atomic_model == SH_A_LLSC) return __sh_cas_llsc(p, t, s);
+-
+- if (__sh_atomic_model == SH_A_IMASK) {
+- unsigned sr = mask();
+- int old = *p;
+- if (old==t) *p = s;
+- unmask(sr);
+- return old;
+- }
+-
+- int old;
+- __asm__ __volatile__(
+- GUSA_START_EVEN("%1", "%0")
+- " cmp/eq %0, %2\n"
+- " bf 1f\n"
+- GUSA_END("%1", "%3")
+- : "=&r"(old) : "r"(p), "r"(t), "r"(s) : GUSA_CLOBBERS, "t");
+- return old;
+-}
+-
+-int __sh_swap(volatile int *x, int v)
+-{
+- if (__sh_atomic_model == SH_A_LLSC) return __sh_swap_llsc(x, v);
+-
+- if (__sh_atomic_model == SH_A_IMASK) {
+- unsigned sr = mask();
+- int old = *x;
+- *x = v;
+- unmask(sr);
+- return old;
+- }
+-
+- int old;
+- __asm__ __volatile__(
+- GUSA_START_EVEN("%1", "%0")
+- GUSA_END("%1", "%2")
+- : "=&r"(old) : "r"(x), "r"(v) : GUSA_CLOBBERS);
+- return old;
+-}
+-
+-int __sh_fetch_add(volatile int *x, int v)
+-{
+- if (__sh_atomic_model == SH_A_LLSC) return __sh_fetch_add_llsc(x, v);
+-
+- if (__sh_atomic_model == SH_A_IMASK) {
+- unsigned sr = mask();
+- int old = *x;
+- *x = old + v;
+- unmask(sr);
+- return old;
+- }
+-
+- int old, dummy;
+- __asm__ __volatile__(
+- GUSA_START_EVEN("%2", "%0")
+- " mov %0, %1\n"
+- " add %3, %1\n"
+- GUSA_END("%2", "%1")
+- : "=&r"(old), "=&r"(dummy) : "r"(x), "r"(v) : GUSA_CLOBBERS);
+- return old;
+-}
+-
+-void __sh_store(volatile int *p, int x)
+-{
+- if (__sh_atomic_model == SH_A_LLSC) return __sh_store_llsc(p, x);
+- __asm__ __volatile__(
+- " mov.l %1, @%0\n"
+- : : "r"(p), "r"(x) : "memory");
+-}
+-
+-void __sh_and(volatile int *x, int v)
+-{
+- if (__sh_atomic_model == SH_A_LLSC) return __sh_and_llsc(x, v);
+-
+- if (__sh_atomic_model == SH_A_IMASK) {
+- unsigned sr = mask();
+- int old = *x;
+- *x = old & v;
+- unmask(sr);
+- return;
+- }
+-
+- int dummy;
+- __asm__ __volatile__(
+- GUSA_START_ODD("%1", "%0")
+- " and %2, %0\n"
+- GUSA_END("%1", "%0")
+- : "=&r"(dummy) : "r"(x), "r"(v) : GUSA_CLOBBERS);
+-}
+-
+-void __sh_or(volatile int *x, int v)
+-{
+- if (__sh_atomic_model == SH_A_LLSC) return __sh_or_llsc(x, v);
+-
+- if (__sh_atomic_model == SH_A_IMASK) {
+- unsigned sr = mask();
+- int old = *x;
+- *x = old | v;
+- unmask(sr);
+- return;
+- }
+-
+- int dummy;
+- __asm__ __volatile__(
+- GUSA_START_ODD("%1", "%0")
+- " or %2, %0\n"
+- GUSA_END("%1", "%0")
+- : "=&r"(dummy) : "r"(x), "r"(v) : GUSA_CLOBBERS);
+-}
+-
+-#endif
+--- a/arch/sh/src/sh_atomic.h
++++ /dev/null
+@@ -1,15 +0,0 @@
+-#ifndef _SH_ATOMIC_H
+-#define _SH_ATOMIC_H
+-
+-#define SH_A_GUSA 0
+-#define SH_A_LLSC 1
+-#define SH_A_CAS 2
+-#if !defined(__SH3__) && !defined(__SH4__)
+-#define SH_A_IMASK 3
+-#else
+-#define SH_A_IMASK -1LL /* unmatchable by unsigned int */
+-#endif
+-
+-extern __attribute__((__visibility__("hidden"))) unsigned __sh_atomic_model;
+-
+-#endif
+--- a/arch/x32/atomic.h
++++ /dev/null
+@@ -1,105 +0,0 @@
+-#ifndef _INTERNAL_ATOMIC_H
+-#define _INTERNAL_ATOMIC_H
+-
+-#include <stdint.h>
+-
+-static inline int a_ctz_64(uint64_t x)
+-{
+- __asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
+- return x;
+-}
+-
+-static inline int a_ctz_l(unsigned long x)
+-{
+- __asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
+- return x;
+-}
+-
+-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+-{
+- __asm__( "lock ; and %1, %0"
+- : "=m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+-{
+- __asm__( "lock ; or %1, %0"
+- : "=m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline void a_or_l(volatile void *p, long v)
+-{
+- __asm__( "lock ; or %1, %0"
+- : "=m"(*(long *)p) : "r"(v) : "memory" );
+-}
+-
+-static inline void *a_cas_p(volatile void *p, void *t, void *s)
+-{
+- __asm__( "lock ; cmpxchg %3, %1"
+- : "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s) : "memory" );
+- return t;
+-}
+-
+-static inline int a_cas(volatile int *p, int t, int s)
+-{
+- __asm__( "lock ; cmpxchg %3, %1"
+- : "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
+- return t;
+-}
+-
+-static inline void a_or(volatile int *p, int v)
+-{
+- __asm__( "lock ; or %1, %0"
+- : "=m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline void a_and(volatile int *p, int v)
+-{
+- __asm__( "lock ; and %1, %0"
+- : "=m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline int a_swap(volatile int *x, int v)
+-{
+- __asm__( "xchg %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
+- return v;
+-}
+-
+-static inline int a_fetch_add(volatile int *x, int v)
+-{
+- __asm__( "lock ; xadd %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
+- return v;
+-}
+-
+-static inline void a_inc(volatile int *x)
+-{
+- __asm__( "lock ; incl %0" : "=m"(*x) : "m"(*x) : "memory" );
+-}
+-
+-static inline void a_dec(volatile int *x)
+-{
+- __asm__( "lock ; decl %0" : "=m"(*x) : "m"(*x) : "memory" );
+-}
+-
+-static inline void a_store(volatile int *p, int x)
+-{
+- __asm__( "mov %1, %0 ; lock ; orl $0,(%%rsp)" : "=m"(*p) : "r"(x) : "memory" );
+-}
+-
+-static inline void a_spin()
+-{
+- __asm__ __volatile__( "pause" : : : "memory" );
+-}
+-
+-static inline void a_barrier()
+-{
+- __asm__ __volatile__( "" : : : "memory" );
+-}
+-
+-static inline void a_crash()
+-{
+- __asm__ __volatile__( "hlt" : : : "memory" );
+-}
+-
+-
+-#endif
+--- /dev/null
++++ b/arch/x32/atomic_arch.h
+@@ -0,0 +1,114 @@
++#define a_cas a_cas
++static inline int a_cas(volatile int *p, int t, int s)
++{
++ __asm__ __volatile__ (
++ "lock ; cmpxchg %3, %1"
++ : "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
++ return t;
++}
++
++#define a_swap a_swap
++static inline int a_swap(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "xchg %0, %1"
++ : "=r"(v), "=m"(*p) : "0"(v) : "memory" );
++ return v;
++}
++
++#define a_fetch_add a_fetch_add
++static inline int a_fetch_add(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "lock ; xadd %0, %1"
++ : "=r"(v), "=m"(*p) : "0"(v) : "memory" );
++ return v;
++}
++
++#define a_and a_and
++static inline void a_and(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "lock ; and %1, %0"
++ : "=m"(*p) : "r"(v) : "memory" );
++}
++
++#define a_or a_or
++static inline void a_or(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "lock ; or %1, %0"
++ : "=m"(*p) : "r"(v) : "memory" );
++}
++
++#define a_and_64 a_and_64
++static inline void a_and_64(volatile uint64_t *p, uint64_t v)
++{
++ __asm__ __volatile(
++ "lock ; and %1, %0"
++ : "=m"(*p) : "r"(v) : "memory" );
++}
++
++#define a_or_64 a_or_64
++static inline void a_or_64(volatile uint64_t *p, uint64_t v)
++{
++ __asm__ __volatile__(
++ "lock ; or %1, %0"
++ : "=m"(*p) : "r"(v) : "memory" );
++}
++
++#define a_inc a_inc
++static inline void a_inc(volatile int *p)
++{
++ __asm__ __volatile__(
++ "lock ; incl %0"
++ : "=m"(*p) : "m"(*p) : "memory" );
++}
++
++#define a_dec a_dec
++static inline void a_dec(volatile int *p)
++{
++ __asm__ __volatile__(
++ "lock ; decl %0"
++ : "=m"(*p) : "m"(*p) : "memory" );
++}
++
++#define a_store a_store
++static inline void a_store(volatile int *p, int x)
++{
++ __asm__ __volatile__(
++ "mov %1, %0 ; lock ; orl $0,(%%rsp)"
++ : "=m"(*p) : "r"(x) : "memory" );
++}
++
++#define a_barrier a_barrier
++static inline void a_barrier()
++{
++ __asm__ __volatile__( "" : : : "memory" );
++}
++
++#define a_pause a_pause
++static inline void a_spin()
++{
++ __asm__ __volatile__( "pause" : : : "memory" );
++}
++
++#define a_crash a_crash
++static inline void a_crash()
++{
++ __asm__ __volatile__( "hlt" : : : "memory" );
++}
++
++#define a_ctz_64 a_ctz_64
++static inline int a_ctz_64(uint64_t x)
++{
++ __asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
++ return x;
++}
++
++#define a_ctz_l a_ctz_l
++static inline int a_ctz_l(unsigned long x)
++{
++ __asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
++ return x;
++}
+--- a/arch/x32/bits/errno.h
++++ /dev/null
+@@ -1,134 +0,0 @@
+-#define EPERM 1
+-#define ENOENT 2
+-#define ESRCH 3
+-#define EINTR 4
+-#define EIO 5
+-#define ENXIO 6
+-#define E2BIG 7
+-#define ENOEXEC 8
+-#define EBADF 9
+-#define ECHILD 10
+-#define EAGAIN 11
+-#define ENOMEM 12
+-#define EACCES 13
+-#define EFAULT 14
+-#define ENOTBLK 15
+-#define EBUSY 16
+-#define EEXIST 17
+-#define EXDEV 18
+-#define ENODEV 19
+-#define ENOTDIR 20
+-#define EISDIR 21
+-#define EINVAL 22
+-#define ENFILE 23
+-#define EMFILE 24
+-#define ENOTTY 25
+-#define ETXTBSY 26
+-#define EFBIG 27
+-#define ENOSPC 28
+-#define ESPIPE 29
+-#define EROFS 30
+-#define EMLINK 31
+-#define EPIPE 32
+-#define EDOM 33
+-#define ERANGE 34
+-#define EDEADLK 35
+-#define ENAMETOOLONG 36
+-#define ENOLCK 37
+-#define ENOSYS 38
+-#define ENOTEMPTY 39
+-#define ELOOP 40
+-#define EWOULDBLOCK EAGAIN
+-#define ENOMSG 42
+-#define EIDRM 43
+-#define ECHRNG 44
+-#define EL2NSYNC 45
+-#define EL3HLT 46
+-#define EL3RST 47
+-#define ELNRNG 48
+-#define EUNATCH 49
+-#define ENOCSI 50
+-#define EL2HLT 51
+-#define EBADE 52
+-#define EBADR 53
+-#define EXFULL 54
+-#define ENOANO 55
+-#define EBADRQC 56
+-#define EBADSLT 57
+-#define EDEADLOCK EDEADLK
+-#define EBFONT 59
+-#define ENOSTR 60
+-#define ENODATA 61
+-#define ETIME 62
+-#define ENOSR 63
+-#define ENONET 64
+-#define ENOPKG 65
+-#define EREMOTE 66
+-#define ENOLINK 67
+-#define EADV 68
+-#define ESRMNT 69
+-#define ECOMM 70
+-#define EPROTO 71
+-#define EMULTIHOP 72
+-#define EDOTDOT 73
+-#define EBADMSG 74
+-#define EOVERFLOW 75
+-#define ENOTUNIQ 76
+-#define EBADFD 77
+-#define EREMCHG 78
+-#define ELIBACC 79
+-#define ELIBBAD 80
+-#define ELIBSCN 81
+-#define ELIBMAX 82
+-#define ELIBEXEC 83
+-#define EILSEQ 84
+-#define ERESTART 85
+-#define ESTRPIPE 86
+-#define EUSERS 87
+-#define ENOTSOCK 88
+-#define EDESTADDRREQ 89
+-#define EMSGSIZE 90
+-#define EPROTOTYPE 91
+-#define ENOPROTOOPT 92
+-#define EPROTONOSUPPORT 93
+-#define ESOCKTNOSUPPORT 94
+-#define EOPNOTSUPP 95
+-#define ENOTSUP EOPNOTSUPP
+-#define EPFNOSUPPORT 96
+-#define EAFNOSUPPORT 97
+-#define EADDRINUSE 98
+-#define EADDRNOTAVAIL 99
+-#define ENETDOWN 100
+-#define ENETUNREACH 101
+-#define ENETRESET 102
+-#define ECONNABORTED 103
+-#define ECONNRESET 104
+-#define ENOBUFS 105
+-#define EISCONN 106
+-#define ENOTCONN 107
+-#define ESHUTDOWN 108
+-#define ETOOMANYREFS 109
+-#define ETIMEDOUT 110
+-#define ECONNREFUSED 111
+-#define EHOSTDOWN 112
+-#define EHOSTUNREACH 113
+-#define EALREADY 114
+-#define EINPROGRESS 115
+-#define ESTALE 116
+-#define EUCLEAN 117
+-#define ENOTNAM 118
+-#define ENAVAIL 119
+-#define EISNAM 120
+-#define EREMOTEIO 121
+-#define EDQUOT 122
+-#define ENOMEDIUM 123
+-#define EMEDIUMTYPE 124
+-#define ECANCELED 125
+-#define ENOKEY 126
+-#define EKEYEXPIRED 127
+-#define EKEYREVOKED 128
+-#define EKEYREJECTED 129
+-#define EOWNERDEAD 130
+-#define ENOTRECOVERABLE 131
+-#define ERFKILL 132
+-#define EHWPOISON 133
+--- a/arch/x32/bits/mman.h
++++ b/arch/x32/bits/mman.h
+@@ -38,6 +38,7 @@
+
+ #define MCL_CURRENT 1
+ #define MCL_FUTURE 2
++#define MCL_ONFAULT 4
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+ #define MADV_NORMAL 0
+--- a/arch/x32/bits/sem.h
++++ /dev/null
+@@ -1,16 +0,0 @@
+-struct semid_ds {
+- struct ipc_perm sem_perm;
+- time_t sem_otime;
+- time_t __unused1;
+- time_t sem_ctime;
+- time_t __unused2;
+-#if __BYTE_ORDER == __LITTLE_ENDIAN
+- unsigned short sem_nsems;
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+-#else
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+- unsigned short sem_nsems;
+-#endif
+- time_t __unused3;
+- time_t __unused4;
+-};
+--- a/arch/x32/bits/stdarg.h
++++ /dev/null
+@@ -1,4 +0,0 @@
+-#define va_start(v,l) __builtin_va_start(v,l)
+-#define va_end(v) __builtin_va_end(v)
+-#define va_arg(v,l) __builtin_va_arg(v,l)
+-#define va_copy(d,s) __builtin_va_copy(d,s)
+--- a/arch/x32/bits/syscall.h
++++ b/arch/x32/bits/syscall.h
+@@ -277,6 +277,9 @@
+ #define __NR_memfd_create (__X32_SYSCALL_BIT + 319)
+ #define __NR_kexec_file_load (__X32_SYSCALL_BIT + 320)
+ #define __NR_bpf (__X32_SYSCALL_BIT + 321)
++#define __NR_userfaultfd (__X32_SYSCALL_BIT + 323)
++#define __NR_membarrier (__X32_SYSCALL_BIT + 324)
++#define __NR_mlock2 (__X32_SYSCALL_BIT + 325)
+
+ #define __NR_rt_sigaction (__X32_SYSCALL_BIT + 512)
+ #define __NR_rt_sigreturn (__X32_SYSCALL_BIT + 513)
+@@ -607,6 +610,9 @@
+ #define SYS_memfd_create __NR_memfd_create
+ #define SYS_kexec_file_load __NR_kexec_file_load
+ #define SYS_bpf __NR_bpf
++#define SYS_userfaultfd __NR_userfaultfd
++#define SYS_membarrier __NR_membarrier
++#define SYS_mlock2 __NR_mlock2
+
+
+ #define SYS_rt_sigaction __NR_rt_sigaction
+--- a/arch/x32/bits/termios.h
++++ /dev/null
+@@ -1,160 +0,0 @@
+-struct termios
+-{
+- tcflag_t c_iflag;
+- tcflag_t c_oflag;
+- tcflag_t c_cflag;
+- tcflag_t c_lflag;
+- cc_t c_line;
+- cc_t c_cc[NCCS];
+- speed_t __c_ispeed;
+- speed_t __c_ospeed;
+-};
+-
+-#define VINTR 0
+-#define VQUIT 1
+-#define VERASE 2
+-#define VKILL 3
+-#define VEOF 4
+-#define VTIME 5
+-#define VMIN 6
+-#define VSWTC 7
+-#define VSTART 8
+-#define VSTOP 9
+-#define VSUSP 10
+-#define VEOL 11
+-#define VREPRINT 12
+-#define VDISCARD 13
+-#define VWERASE 14
+-#define VLNEXT 15
+-#define VEOL2 16
+-
+-#define IGNBRK 0000001
+-#define BRKINT 0000002
+-#define IGNPAR 0000004
+-#define PARMRK 0000010
+-#define INPCK 0000020
+-#define ISTRIP 0000040
+-#define INLCR 0000100
+-#define IGNCR 0000200
+-#define ICRNL 0000400
+-#define IUCLC 0001000
+-#define IXON 0002000
+-#define IXANY 0004000
+-#define IXOFF 0010000
+-#define IMAXBEL 0020000
+-#define IUTF8 0040000
+-
+-#define OPOST 0000001
+-#define OLCUC 0000002
+-#define ONLCR 0000004
+-#define OCRNL 0000010
+-#define ONOCR 0000020
+-#define ONLRET 0000040
+-#define OFILL 0000100
+-#define OFDEL 0000200
+-#define NLDLY 0000400
+-#define NL0 0000000
+-#define NL1 0000400
+-#define CRDLY 0003000
+-#define CR0 0000000
+-#define CR1 0001000
+-#define CR2 0002000
+-#define CR3 0003000
+-#define TABDLY 0014000
+-#define TAB0 0000000
+-#define TAB1 0004000
+-#define TAB2 0010000
+-#define TAB3 0014000
+-#define BSDLY 0020000
+-#define BS0 0000000
+-#define BS1 0020000
+-#define FFDLY 0100000
+-#define FF0 0000000
+-#define FF1 0100000
+-
+-#define VTDLY 0040000
+-#define VT0 0000000
+-#define VT1 0040000
+-
+-#define B0 0000000
+-#define B50 0000001
+-#define B75 0000002
+-#define B110 0000003
+-#define B134 0000004
+-#define B150 0000005
+-#define B200 0000006
+-#define B300 0000007
+-#define B600 0000010
+-#define B1200 0000011
+-#define B1800 0000012
+-#define B2400 0000013
+-#define B4800 0000014
+-#define B9600 0000015
+-#define B19200 0000016
+-#define B38400 0000017
+-
+-#define B57600 0010001
+-#define B115200 0010002
+-#define B230400 0010003
+-#define B460800 0010004
+-#define B500000 0010005
+-#define B576000 0010006
+-#define B921600 0010007
+-#define B1000000 0010010
+-#define B1152000 0010011
+-#define B1500000 0010012
+-#define B2000000 0010013
+-#define B2500000 0010014
+-#define B3000000 0010015
+-#define B3500000 0010016
+-#define B4000000 0010017
+-
+-#define CBAUD 0010017
+-
+-#define CSIZE 0000060
+-#define CS5 0000000
+-#define CS6 0000020
+-#define CS7 0000040
+-#define CS8 0000060
+-#define CSTOPB 0000100
+-#define CREAD 0000200
+-#define PARENB 0000400
+-#define PARODD 0001000
+-#define HUPCL 0002000
+-#define CLOCAL 0004000
+-
+-#define ISIG 0000001
+-#define ICANON 0000002
+-#define ECHO 0000010
+-#define ECHOE 0000020
+-#define ECHOK 0000040
+-#define ECHONL 0000100
+-#define NOFLSH 0000200
+-#define TOSTOP 0000400
+-#define IEXTEN 0100000
+-
+-#define ECHOCTL 0001000
+-#define ECHOPRT 0002000
+-#define ECHOKE 0004000
+-#define FLUSHO 0010000
+-#define PENDIN 0040000
+-
+-#define TCOOFF 0
+-#define TCOON 1
+-#define TCIOFF 2
+-#define TCION 3
+-
+-#define TCIFLUSH 0
+-#define TCOFLUSH 1
+-#define TCIOFLUSH 2
+-
+-#define TCSANOW 0
+-#define TCSADRAIN 1
+-#define TCSAFLUSH 2
+-
+-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+-#define CBAUDEX 0010000
+-#define CRTSCTS 020000000000
+-#define EXTPROC 0200000
+-#define XTABS 0014000
+-#endif
+--- a/arch/x32/pthread_arch.h
++++ b/arch/x32/pthread_arch.h
+@@ -7,6 +7,6 @@ static inline struct pthread *__pthread_
+
+ #define TP_ADJ(p) (p)
+
+-#define CANCEL_REG_IP 32
++#define MC_PC gregs[REG_RIP]
+
+ #define CANARY canary2
+--- a/arch/x32/src/syscall_cp_fixup.c
++++ /dev/null
+@@ -1,42 +0,0 @@
+-#include <sys/syscall.h>
+-
+-#ifdef SHARED
+-__attribute__((__visibility__("hidden")))
+-#endif
+-long __syscall_cp_internal(volatile void*, long long, long long, long long, long long,
+- long long, long long, long long);
+-
+-struct __timespec { long long tv_sec; long tv_nsec; };
+-struct __timespec_kernel { long long tv_sec; long long tv_nsec; };
+-#define __tsc(X) ((struct __timespec*)(unsigned long)(X))
+-#define __fixup(X) do { if(X) { \
+- ts->tv_sec = __tsc(X)->tv_sec; \
+- ts->tv_nsec = __tsc(X)->tv_nsec; \
+- (X) = (unsigned long)ts; } } while(0)
+-
+-#ifdef SHARED
+-__attribute__((__visibility__("hidden")))
+-#endif
+-long __syscall_cp_asm (volatile void * foo, long long n, long long a1, long long a2, long long a3,
+- long long a4, long long a5, long long a6)
+-{
+- struct __timespec_kernel ts[1];
+- switch (n) {
+- case SYS_mq_timedsend: case SYS_mq_timedreceive: case SYS_pselect6:
+- __fixup(a5);
+- break;
+- case SYS_futex:
+- if((a2 & (~128 /* FUTEX_PRIVATE_FLAG */)) == 0 /* FUTEX_WAIT */)
+- __fixup(a4);
+- break;
+- case SYS_clock_nanosleep:
+- case SYS_rt_sigtimedwait: case SYS_ppoll:
+- __fixup(a3);
+- break;
+- case SYS_nanosleep:
+- __fixup(a1);
+- break;
+- }
+- return __syscall_cp_internal(foo, n, a1, a2, a3, a4, a5, a6);
+-}
+-
+--- a/arch/x32/src/sysinfo.c
++++ /dev/null
+@@ -1,50 +0,0 @@
+-#include <sys/sysinfo.h>
+-#include "syscall.h"
+-#include "libc.h"
+-
+-#define klong long long
+-#define kulong unsigned long long
+-
+-struct kernel_sysinfo {
+- klong uptime;
+- kulong loads[3];
+- kulong totalram;
+- kulong freeram;
+- kulong sharedram;
+- kulong bufferram;
+- kulong totalswap;
+- kulong freeswap;
+- short procs;
+- short pad;
+- kulong totalhigh;
+- kulong freehigh;
+- unsigned mem_unit;
+-};
+-
+-int __lsysinfo(struct sysinfo *info)
+-{
+- struct kernel_sysinfo tmp;
+- int ret = syscall(SYS_sysinfo, &tmp);
+- if(ret == -1) return ret;
+- info->uptime = tmp.uptime;
+- info->loads[0] = tmp.loads[0];
+- info->loads[1] = tmp.loads[1];
+- info->loads[2] = tmp.loads[2];
+- kulong shifts;
+- kulong max = tmp.totalram | tmp.totalswap;
+- __asm__("bsr %1,%0" : "=r"(shifts) : "r"(max));
+- shifts = shifts >= 32 ? shifts - 31 : 0;
+- info->totalram = tmp.totalram >> shifts;
+- info->freeram = tmp.freeram >> shifts;
+- info->sharedram = tmp.sharedram >> shifts;
+- info->bufferram = tmp.bufferram >> shifts;
+- info->totalswap = tmp.totalswap >> shifts;
+- info->freeswap = tmp.freeswap >> shifts;
+- info->procs = tmp.procs ;
+- info->totalhigh = tmp.totalhigh >> shifts;
+- info->freehigh = tmp.freehigh >> shifts;
+- info->mem_unit = (tmp.mem_unit ? tmp.mem_unit : 1) << shifts;
+- return ret;
+-}
+-
+-weak_alias(__lsysinfo, sysinfo);
+--- a/arch/x86_64/atomic.h
++++ /dev/null
+@@ -1,105 +0,0 @@
+-#ifndef _INTERNAL_ATOMIC_H
+-#define _INTERNAL_ATOMIC_H
+-
+-#include <stdint.h>
+-
+-static inline int a_ctz_64(uint64_t x)
+-{
+- __asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
+- return x;
+-}
+-
+-static inline int a_ctz_l(unsigned long x)
+-{
+- __asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
+- return x;
+-}
+-
+-static inline void a_and_64(volatile uint64_t *p, uint64_t v)
+-{
+- __asm__( "lock ; and %1, %0"
+- : "=m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline void a_or_64(volatile uint64_t *p, uint64_t v)
+-{
+- __asm__( "lock ; or %1, %0"
+- : "=m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline void a_or_l(volatile void *p, long v)
+-{
+- __asm__( "lock ; or %1, %0"
+- : "=m"(*(long *)p) : "r"(v) : "memory" );
+-}
+-
+-static inline void *a_cas_p(volatile void *p, void *t, void *s)
+-{
+- __asm__( "lock ; cmpxchg %3, %1"
+- : "=a"(t), "=m"(*(long *)p) : "a"(t), "r"(s) : "memory" );
+- return t;
+-}
+-
+-static inline int a_cas(volatile int *p, int t, int s)
+-{
+- __asm__( "lock ; cmpxchg %3, %1"
+- : "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
+- return t;
+-}
+-
+-static inline void a_or(volatile int *p, int v)
+-{
+- __asm__( "lock ; or %1, %0"
+- : "=m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline void a_and(volatile int *p, int v)
+-{
+- __asm__( "lock ; and %1, %0"
+- : "=m"(*p) : "r"(v) : "memory" );
+-}
+-
+-static inline int a_swap(volatile int *x, int v)
+-{
+- __asm__( "xchg %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
+- return v;
+-}
+-
+-static inline int a_fetch_add(volatile int *x, int v)
+-{
+- __asm__( "lock ; xadd %0, %1" : "=r"(v), "=m"(*x) : "0"(v) : "memory" );
+- return v;
+-}
+-
+-static inline void a_inc(volatile int *x)
+-{
+- __asm__( "lock ; incl %0" : "=m"(*x) : "m"(*x) : "memory" );
+-}
+-
+-static inline void a_dec(volatile int *x)
+-{
+- __asm__( "lock ; decl %0" : "=m"(*x) : "m"(*x) : "memory" );
+-}
+-
+-static inline void a_store(volatile int *p, int x)
+-{
+- __asm__( "mov %1, %0 ; lock ; orl $0,(%%rsp)" : "=m"(*p) : "r"(x) : "memory" );
+-}
+-
+-static inline void a_spin()
+-{
+- __asm__ __volatile__( "pause" : : : "memory" );
+-}
+-
+-static inline void a_barrier()
+-{
+- __asm__ __volatile__( "" : : : "memory" );
+-}
+-
+-static inline void a_crash()
+-{
+- __asm__ __volatile__( "hlt" : : : "memory" );
+-}
+-
+-
+-#endif
+--- /dev/null
++++ b/arch/x86_64/atomic_arch.h
+@@ -0,0 +1,116 @@
++#define a_cas a_cas
++static inline int a_cas(volatile int *p, int t, int s)
++{
++ __asm__ __volatile__ (
++ "lock ; cmpxchg %3, %1"
++ : "=a"(t), "=m"(*p) : "a"(t), "r"(s) : "memory" );
++ return t;
++}
++
++#define a_cas_p a_cas_p
++static inline void *a_cas_p(volatile void *p, void *t, void *s)
++{
++ __asm__( "lock ; cmpxchg %3, %1"
++ : "=a"(t), "=m"(*(void *volatile *)p)
++ : "a"(t), "r"(s) : "memory" );
++ return t;
++}
++
++#define a_swap a_swap
++static inline int a_swap(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "xchg %0, %1"
++ : "=r"(v), "=m"(*p) : "0"(v) : "memory" );
++ return v;
++}
++
++#define a_fetch_add a_fetch_add
++static inline int a_fetch_add(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "lock ; xadd %0, %1"
++ : "=r"(v), "=m"(*p) : "0"(v) : "memory" );
++ return v;
++}
++
++#define a_and a_and
++static inline void a_and(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "lock ; and %1, %0"
++ : "=m"(*p) : "r"(v) : "memory" );
++}
++
++#define a_or a_or
++static inline void a_or(volatile int *p, int v)
++{
++ __asm__ __volatile__(
++ "lock ; or %1, %0"
++ : "=m"(*p) : "r"(v) : "memory" );
++}
++
++#define a_and_64 a_and_64
++static inline void a_and_64(volatile uint64_t *p, uint64_t v)
++{
++ __asm__ __volatile(
++ "lock ; and %1, %0"
++ : "=m"(*p) : "r"(v) : "memory" );
++}
++
++#define a_or_64 a_or_64
++static inline void a_or_64(volatile uint64_t *p, uint64_t v)
++{
++ __asm__ __volatile__(
++ "lock ; or %1, %0"
++ : "=m"(*p) : "r"(v) : "memory" );
++}
++
++#define a_inc a_inc
++static inline void a_inc(volatile int *p)
++{
++ __asm__ __volatile__(
++ "lock ; incl %0"
++ : "=m"(*p) : "m"(*p) : "memory" );
++}
++
++#define a_dec a_dec
++static inline void a_dec(volatile int *p)
++{
++ __asm__ __volatile__(
++ "lock ; decl %0"
++ : "=m"(*p) : "m"(*p) : "memory" );
++}
++
++#define a_store a_store
++static inline void a_store(volatile int *p, int x)
++{
++ __asm__ __volatile__(
++ "mov %1, %0 ; lock ; orl $0,(%%rsp)"
++ : "=m"(*p) : "r"(x) : "memory" );
++}
++
++#define a_barrier a_barrier
++static inline void a_barrier()
++{
++ __asm__ __volatile__( "" : : : "memory" );
++}
++
++#define a_pause a_pause
++static inline void a_spin()
++{
++ __asm__ __volatile__( "pause" : : : "memory" );
++}
++
++#define a_crash a_crash
++static inline void a_crash()
++{
++ __asm__ __volatile__( "hlt" : : : "memory" );
++}
++
++#define a_ctz_64 a_ctz_64
++static inline int a_ctz_64(uint64_t x)
++{
++ __asm__( "bsf %1,%0" : "=r"(x) : "r"(x) );
++ return x;
++}
+--- a/arch/x86_64/bits/errno.h
++++ /dev/null
+@@ -1,134 +0,0 @@
+-#define EPERM 1
+-#define ENOENT 2
+-#define ESRCH 3
+-#define EINTR 4
+-#define EIO 5
+-#define ENXIO 6
+-#define E2BIG 7
+-#define ENOEXEC 8
+-#define EBADF 9
+-#define ECHILD 10
+-#define EAGAIN 11
+-#define ENOMEM 12
+-#define EACCES 13
+-#define EFAULT 14
+-#define ENOTBLK 15
+-#define EBUSY 16
+-#define EEXIST 17
+-#define EXDEV 18
+-#define ENODEV 19
+-#define ENOTDIR 20
+-#define EISDIR 21
+-#define EINVAL 22
+-#define ENFILE 23
+-#define EMFILE 24
+-#define ENOTTY 25
+-#define ETXTBSY 26
+-#define EFBIG 27
+-#define ENOSPC 28
+-#define ESPIPE 29
+-#define EROFS 30
+-#define EMLINK 31
+-#define EPIPE 32
+-#define EDOM 33
+-#define ERANGE 34
+-#define EDEADLK 35
+-#define ENAMETOOLONG 36
+-#define ENOLCK 37
+-#define ENOSYS 38
+-#define ENOTEMPTY 39
+-#define ELOOP 40
+-#define EWOULDBLOCK EAGAIN
+-#define ENOMSG 42
+-#define EIDRM 43
+-#define ECHRNG 44
+-#define EL2NSYNC 45
+-#define EL3HLT 46
+-#define EL3RST 47
+-#define ELNRNG 48
+-#define EUNATCH 49
+-#define ENOCSI 50
+-#define EL2HLT 51
+-#define EBADE 52
+-#define EBADR 53
+-#define EXFULL 54
+-#define ENOANO 55
+-#define EBADRQC 56
+-#define EBADSLT 57
+-#define EDEADLOCK EDEADLK
+-#define EBFONT 59
+-#define ENOSTR 60
+-#define ENODATA 61
+-#define ETIME 62
+-#define ENOSR 63
+-#define ENONET 64
+-#define ENOPKG 65
+-#define EREMOTE 66
+-#define ENOLINK 67
+-#define EADV 68
+-#define ESRMNT 69
+-#define ECOMM 70
+-#define EPROTO 71
+-#define EMULTIHOP 72
+-#define EDOTDOT 73
+-#define EBADMSG 74
+-#define EOVERFLOW 75
+-#define ENOTUNIQ 76
+-#define EBADFD 77
+-#define EREMCHG 78
+-#define ELIBACC 79
+-#define ELIBBAD 80
+-#define ELIBSCN 81
+-#define ELIBMAX 82
+-#define ELIBEXEC 83
+-#define EILSEQ 84
+-#define ERESTART 85
+-#define ESTRPIPE 86
+-#define EUSERS 87
+-#define ENOTSOCK 88
+-#define EDESTADDRREQ 89
+-#define EMSGSIZE 90
+-#define EPROTOTYPE 91
+-#define ENOPROTOOPT 92
+-#define EPROTONOSUPPORT 93
+-#define ESOCKTNOSUPPORT 94
+-#define EOPNOTSUPP 95
+-#define ENOTSUP EOPNOTSUPP
+-#define EPFNOSUPPORT 96
+-#define EAFNOSUPPORT 97
+-#define EADDRINUSE 98
+-#define EADDRNOTAVAIL 99
+-#define ENETDOWN 100
+-#define ENETUNREACH 101
+-#define ENETRESET 102
+-#define ECONNABORTED 103
+-#define ECONNRESET 104
+-#define ENOBUFS 105
+-#define EISCONN 106
+-#define ENOTCONN 107
+-#define ESHUTDOWN 108
+-#define ETOOMANYREFS 109
+-#define ETIMEDOUT 110
+-#define ECONNREFUSED 111
+-#define EHOSTDOWN 112
+-#define EHOSTUNREACH 113
+-#define EALREADY 114
+-#define EINPROGRESS 115
+-#define ESTALE 116
+-#define EUCLEAN 117
+-#define ENOTNAM 118
+-#define ENAVAIL 119
+-#define EISNAM 120
+-#define EREMOTEIO 121
+-#define EDQUOT 122
+-#define ENOMEDIUM 123
+-#define EMEDIUMTYPE 124
+-#define ECANCELED 125
+-#define ENOKEY 126
+-#define EKEYEXPIRED 127
+-#define EKEYREVOKED 128
+-#define EKEYREJECTED 129
+-#define EOWNERDEAD 130
+-#define ENOTRECOVERABLE 131
+-#define ERFKILL 132
+-#define EHWPOISON 133
+--- a/arch/x86_64/bits/mman.h
++++ b/arch/x86_64/bits/mman.h
+@@ -38,6 +38,7 @@
+
+ #define MCL_CURRENT 1
+ #define MCL_FUTURE 2
++#define MCL_ONFAULT 4
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+ #define MADV_NORMAL 0
+--- a/arch/x86_64/bits/sem.h
++++ /dev/null
+@@ -1,16 +0,0 @@
+-struct semid_ds {
+- struct ipc_perm sem_perm;
+- time_t sem_otime;
+- time_t __unused1;
+- time_t sem_ctime;
+- time_t __unused2;
+-#if __BYTE_ORDER == __LITTLE_ENDIAN
+- unsigned short sem_nsems;
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+-#else
+- char __sem_nsems_pad[sizeof(time_t)-sizeof(short)];
+- unsigned short sem_nsems;
+-#endif
+- time_t __unused3;
+- time_t __unused4;
+-};
+--- a/arch/x86_64/bits/statfs.h
++++ /dev/null
+@@ -1,7 +0,0 @@
+-struct statfs {
+- unsigned long f_type, f_bsize;
+- fsblkcnt_t f_blocks, f_bfree, f_bavail;
+- fsfilcnt_t f_files, f_ffree;
+- fsid_t f_fsid;
+- unsigned long f_namelen, f_frsize, f_flags, f_spare[4];
+-};
+--- a/arch/x86_64/bits/stdarg.h
++++ /dev/null
+@@ -1,4 +0,0 @@
+-#define va_start(v,l) __builtin_va_start(v,l)
+-#define va_end(v) __builtin_va_end(v)
+-#define va_arg(v,l) __builtin_va_arg(v,l)
+-#define va_copy(d,s) __builtin_va_copy(d,s)
+--- a/arch/x86_64/bits/syscall.h
++++ b/arch/x86_64/bits/syscall.h
+@@ -321,6 +321,9 @@
+ #define __NR_kexec_file_load 320
+ #define __NR_bpf 321
+ #define __NR_execveat 322
++#define __NR_userfaultfd 323
++#define __NR_membarrier 324
++#define __NR_mlock2 325
+
+
+
+@@ -649,3 +652,6 @@
+ #define SYS_kexec_file_load 320
+ #define SYS_bpf 321
+ #define SYS_execveat 322
++#define SYS_userfaultfd 323
++#define SYS_membarrier 324
++#define SYS_mlock2 325
+--- a/arch/x86_64/bits/termios.h
++++ /dev/null
+@@ -1,160 +0,0 @@
+-struct termios
+-{
+- tcflag_t c_iflag;
+- tcflag_t c_oflag;
+- tcflag_t c_cflag;
+- tcflag_t c_lflag;
+- cc_t c_line;
+- cc_t c_cc[NCCS];
+- speed_t __c_ispeed;
+- speed_t __c_ospeed;
+-};
+-
+-#define VINTR 0
+-#define VQUIT 1
+-#define VERASE 2
+-#define VKILL 3
+-#define VEOF 4
+-#define VTIME 5
+-#define VMIN 6
+-#define VSWTC 7
+-#define VSTART 8
+-#define VSTOP 9
+-#define VSUSP 10
+-#define VEOL 11
+-#define VREPRINT 12
+-#define VDISCARD 13
+-#define VWERASE 14
+-#define VLNEXT 15
+-#define VEOL2 16
+-
+-#define IGNBRK 0000001
+-#define BRKINT 0000002
+-#define IGNPAR 0000004
+-#define PARMRK 0000010
+-#define INPCK 0000020
+-#define ISTRIP 0000040
+-#define INLCR 0000100
+-#define IGNCR 0000200
+-#define ICRNL 0000400
+-#define IUCLC 0001000
+-#define IXON 0002000
+-#define IXANY 0004000
+-#define IXOFF 0010000
+-#define IMAXBEL 0020000
+-#define IUTF8 0040000
+-
+-#define OPOST 0000001
+-#define OLCUC 0000002
+-#define ONLCR 0000004
+-#define OCRNL 0000010
+-#define ONOCR 0000020
+-#define ONLRET 0000040
+-#define OFILL 0000100
+-#define OFDEL 0000200
+-#define NLDLY 0000400
+-#define NL0 0000000
+-#define NL1 0000400
+-#define CRDLY 0003000
+-#define CR0 0000000
+-#define CR1 0001000
+-#define CR2 0002000
+-#define CR3 0003000
+-#define TABDLY 0014000
+-#define TAB0 0000000
+-#define TAB1 0004000
+-#define TAB2 0010000
+-#define TAB3 0014000
+-#define BSDLY 0020000
+-#define BS0 0000000
+-#define BS1 0020000
+-#define FFDLY 0100000
+-#define FF0 0000000
+-#define FF1 0100000
+-
+-#define VTDLY 0040000
+-#define VT0 0000000
+-#define VT1 0040000
+-
+-#define B0 0000000
+-#define B50 0000001
+-#define B75 0000002
+-#define B110 0000003
+-#define B134 0000004
+-#define B150 0000005
+-#define B200 0000006
+-#define B300 0000007
+-#define B600 0000010
+-#define B1200 0000011
+-#define B1800 0000012
+-#define B2400 0000013
+-#define B4800 0000014
+-#define B9600 0000015
+-#define B19200 0000016
+-#define B38400 0000017
+-
+-#define B57600 0010001
+-#define B115200 0010002
+-#define B230400 0010003
+-#define B460800 0010004
+-#define B500000 0010005
+-#define B576000 0010006
+-#define B921600 0010007
+-#define B1000000 0010010
+-#define B1152000 0010011
+-#define B1500000 0010012
+-#define B2000000 0010013
+-#define B2500000 0010014
+-#define B3000000 0010015
+-#define B3500000 0010016
+-#define B4000000 0010017
+-
+-#define CBAUD 0010017
+-
+-#define CSIZE 0000060
+-#define CS5 0000000
+-#define CS6 0000020
+-#define CS7 0000040
+-#define CS8 0000060
+-#define CSTOPB 0000100
+-#define CREAD 0000200
+-#define PARENB 0000400
+-#define PARODD 0001000
+-#define HUPCL 0002000
+-#define CLOCAL 0004000
+-
+-#define ISIG 0000001
+-#define ICANON 0000002
+-#define ECHO 0000010
+-#define ECHOE 0000020
+-#define ECHOK 0000040
+-#define ECHONL 0000100
+-#define NOFLSH 0000200
+-#define TOSTOP 0000400
+-#define IEXTEN 0100000
+-
+-#define ECHOCTL 0001000
+-#define ECHOPRT 0002000
+-#define ECHOKE 0004000
+-#define FLUSHO 0010000
+-#define PENDIN 0040000
+-
+-#define TCOOFF 0
+-#define TCOON 1
+-#define TCIOFF 2
+-#define TCION 3
+-
+-#define TCIFLUSH 0
+-#define TCOFLUSH 1
+-#define TCIOFLUSH 2
+-
+-#define TCSANOW 0
+-#define TCSADRAIN 1
+-#define TCSAFLUSH 2
+-
+-#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+-#define CBAUDEX 0010000
+-#define CRTSCTS 020000000000
+-#define EXTPROC 0200000
+-#define XTABS 0014000
+-#endif
+--- a/arch/x86_64/pthread_arch.h
++++ b/arch/x86_64/pthread_arch.h
+@@ -7,4 +7,4 @@ static inline struct pthread *__pthread_
+
+ #define TP_ADJ(p) (p)
+
+-#define CANCEL_REG_IP 16
++#define MC_PC gregs[REG_RIP]
+--- a/configure
++++ b/configure
+@@ -9,6 +9,9 @@ VAR=VALUE. See below for descriptions o
+
+ Defaults for the options are specified in brackets.
+
++Configuration:
++ --srcdir=DIR source directory [detected]
++
+ Installation directories:
+ --prefix=PREFIX main installation prefix [/usr/local/musl]
+ --exec-prefix=EPREFIX installation prefix for executable files [PREFIX]
+@@ -117,6 +120,7 @@ CFLAGS_TRY=
+ LDFLAGS_AUTO=
+ LDFLAGS_TRY=
+ OPTIMIZE_GLOBS=
++srcdir=
+ prefix=/usr/local/musl
+ exec_prefix='$(prefix)'
+ bindir='$(exec_prefix)/bin'
+@@ -139,6 +143,7 @@ clang_wrapper=no
+ for arg ; do
+ case "$arg" in
+ --help) usage ;;
++--srcdir=*) srcdir=${arg#*=} ;;
+ --prefix=*) prefix=${arg#*=} ;;
+ --exec-prefix=*) exec_prefix=${arg#*=} ;;
+ --bindir=*) bindir=${arg#*=} ;;
+@@ -179,11 +184,23 @@ LIBCC=*) LIBCC=${arg#*=} ;;
+ esac
+ done
+
+-for i in prefix exec_prefix bindir libdir includedir syslibdir ; do
++for i in srcdir prefix exec_prefix bindir libdir includedir syslibdir ; do
+ stripdir $i
+ done
+
+ #
++# Get the source dir for out-of-tree builds
++#
++if test -z "$srcdir" ; then
++srcdir="${0%/configure}"
++stripdir srcdir
++fi
++abs_builddir="$(pwd)" || fail "$0: cannot determine working directory"
++abs_srcdir="$(cd $srcdir && pwd)" || fail "$0: invalid source directory $srcdir"
++test "$abs_srcdir" = "$abs_builddir" && srcdir=.
++test "$srcdir" != "." -a -f Makefile -a ! -h Makefile && fail "$0: Makefile already exists in the working directory"
++
++#
+ # Get a temp filename we can use
+ #
+ i=0
+@@ -263,11 +280,11 @@ fi
+ fi
+
+ if test "$gcc_wrapper" = yes ; then
+-tools="$tools tools/musl-gcc"
++tools="$tools obj/musl-gcc"
+ tool_libs="$tool_libs lib/musl-gcc.specs"
+ fi
+ if test "$clang_wrapper" = yes ; then
+-tools="$tools tools/musl-clang tools/ld.musl-clang"
++tools="$tools obj/musl-clang obj/ld.musl-clang"
+ fi
+
+ #
+@@ -321,7 +338,7 @@ __attribute__((__may_alias__))
+ #endif
+ x;
+ EOF
+-if $CC $CFLAGS_C99FSE -I./arch/$ARCH -I./include $CPPFLAGS $CFLAGS \
++if $CC $CFLAGS_C99FSE $CPPFLAGS $CFLAGS \
+ -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
+ printf "no\n"
+ else
+@@ -330,6 +347,13 @@ CFLAGS_C99FSE="$CFLAGS_C99FSE -D__may_al
+ fi
+
+ #
++# The GNU toolchain defaults to assuming unmarked files need an
++# executable stack, potentially exposing vulnerabilities in programs
++# linked with such object files. Fix this.
++#
++tryflag CFLAGS_C99FSE -Wa,--noexecstack
++
++#
+ # Check for options to disable stack protector, which needs to be
+ # disabled for a few early-bootstrap translation units. If not found,
+ # this is not an error; we assume the toolchain does not do ssp.
+@@ -430,11 +454,15 @@ tryflag CFLAGS_AUTO -fno-unwind-tables
+ tryflag CFLAGS_AUTO -fno-asynchronous-unwind-tables
+
+ #
+-# The GNU toolchain defaults to assuming unmarked files need an
+-# executable stack, potentially exposing vulnerabilities in programs
+-# linked with such object files. Fix this.
++# Attempt to put each function and each data object in its own
++# section. This both allows additional size optimizations at link
++# time and works around a dangerous class of compiler/assembler bugs
++# whereby relative address expressions are constant-folded by the
++# assembler even when one or more of the symbols involved is
++# replaceable. See gas pr 18561 and gcc pr 66609, 68178, etc.
+ #
+-tryflag CFLAGS_AUTO -Wa,--noexecstack
++tryflag CFLAGS_AUTO -ffunction-sections
++tryflag CFLAGS_AUTO -fdata-sections
+
+ #
+ # On x86, make sure we don't have incompatible instruction set
+@@ -489,7 +517,7 @@ int foo(void) { }
+ int bar(void) { fp = foo; return foo(); }
+ EOF
+ if $CC $CFLAGS_C99FSE $CPPFLAGS $CFLAGS \
+- -DSHARED -fPIC -I./src/internal -include vis.h \
++ -DSHARED -fPIC -I$srcdir/src/internal -include vis.h \
+ -nostdlib -shared -Wl,-Bsymbolic-functions \
+ -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
+ visibility=yes
+@@ -504,6 +532,25 @@ CFLAGS_AUTO="$CFLAGS_AUTO -include vis.h
+ CFLAGS_AUTO="${CFLAGS_AUTO# }"
+ fi
+
++# Determine if the compiler produces position-independent code (PIC)
++# by default. If so, we don't need to compile separate object files
++# for libc.a and libc.so.
++if trycppif __PIC__ "$CFLAGS_C99FSE $CPPFLAGS $CFLAGS" ; then
++pic_default=yes
++else
++pic_default=no
++fi
++
++# Reduce space lost to padding for alignment purposes by sorting data
++# objects according to their alignment reqirements. This approximates
++# optimal packing.
++tryldflag LDFLAGS_AUTO -Wl,--sort-section,alignment
++tryldflag LDFLAGS_AUTO -Wl,--sort-common
++
++# When linking shared library, drop dummy weak definitions that were
++# replaced by strong definitions from other translation units.
++tryldflag LDFLAGS_AUTO -Wl,--gc-sections
++
+ # Some patched GCC builds have these defaults messed up...
+ tryldflag LDFLAGS_AUTO -Wl,--hash-style=both
+
+@@ -513,6 +560,11 @@ tryldflag LDFLAGS_AUTO -Wl,--hash-style=
+ # runtime library; implementation error is also a possibility.
+ tryldflag LDFLAGS_AUTO -Wl,--no-undefined
+
++# Avoid exporting symbols from compiler runtime libraries. They
++# should be hidden anyway, but some toolchains including old gcc
++# versions built without shared library support and pcc are broken.
++tryldflag LDFLAGS_AUTO -Wl,--exclude-libs=ALL
++
+ test "$shared" = "no" || {
+ # Disable dynamic linking if ld is broken and can't do -Bsymbolic-functions
+ LDFLAGS_DUMMY=
+@@ -599,8 +651,9 @@ echo '#include <float.h>' > "$tmpc"
+ echo '#if LDBL_MANT_DIG == 53' >> "$tmpc"
+ echo 'typedef char ldcheck[9-(int)sizeof(long double)];' >> "$tmpc"
+ echo '#endif' >> "$tmpc"
+-if $CC $CFLAGS_C99FSE -I./arch/$ARCH -I./include $CPPFLAGS $CFLAGS \
+- -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
++if $CC $CFLAGS_C99FSE \
++ -I$srcdir/arch/$ARCH -I$srcdir/arch/generic -I$srcdir/include \
++ $CPPFLAGS $CFLAGS -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
+ printf "yes\n"
+ else
+ printf "no\n"
+@@ -622,6 +675,7 @@ cat << EOF
+ ARCH = $ARCH
+ SUBARCH = $SUBARCH
+ ASMSUBARCH = $ASMSUBARCH
++srcdir = $srcdir
+ prefix = $prefix
+ exec_prefix = $exec_prefix
+ bindir = $bindir
+@@ -629,12 +683,14 @@ libdir = $libdir
+ includedir = $includedir
+ syslibdir = $syslibdir
+ CC = $CC
+-CFLAGS = $CFLAGS_AUTO $CFLAGS
++CFLAGS = $CFLAGS
++CFLAGS_AUTO = $CFLAGS_AUTO
+ CFLAGS_C99FSE = $CFLAGS_C99FSE
+ CFLAGS_MEMOPS = $CFLAGS_MEMOPS
+ CFLAGS_NOSSP = $CFLAGS_NOSSP
+ CPPFLAGS = $CPPFLAGS
+-LDFLAGS = $LDFLAGS_AUTO $LDFLAGS
++LDFLAGS = $LDFLAGS
++LDFLAGS_AUTO = $LDFLAGS_AUTO
+ CROSS_COMPILE = $CROSS_COMPILE
+ LIBCC = $LIBCC
+ OPTIMIZE_GLOBS = $OPTIMIZE_GLOBS
+@@ -646,6 +702,9 @@ test "x$static" = xno && echo "STATIC_LI
+ test "x$shared" = xno && echo "SHARED_LIBS ="
+ test "x$cc_family" = xgcc && echo 'WRAPCC_GCC = $(CC)'
+ test "x$cc_family" = xclang && echo 'WRAPCC_CLANG = $(CC)'
++test "x$pic_default" = xyes && echo 'AOBJS = $(LOBJS)'
+ exec 1>&3 3>&-
+
++test "$srcdir" = "." || ln -sf $srcdir/Makefile .
++
+ printf "done\n"
+--- a/crt/arm/crti.s
++++ b/crt/arm/crti.s
+@@ -1,3 +1,5 @@
++.syntax unified
++
+ .section .init
+ .global _init
+ .type _init,%function
+--- a/crt/arm/crtn.s
++++ b/crt/arm/crtn.s
+@@ -1,11 +1,9 @@
++.syntax unified
++
+ .section .init
+ pop {r0,lr}
+- tst lr,#1
+- moveq pc,lr
+ bx lr
+
+ .section .fini
+ pop {r0,lr}
+- tst lr,#1
+- moveq pc,lr
+ bx lr
+--- a/crt/rcrt1.c
++++ b/crt/rcrt1.c
+@@ -1,7 +1,7 @@
+ #define SHARED
+ #define START "_start"
+ #define _dlstart_c _start_c
+-#include "../src/ldso/dlstart.c"
++#include "../ldso/dlstart.c"
+
+ int main();
+ void _init() __attribute__((weak));
+--- a/include/complex.h
++++ b/include/complex.h
+@@ -116,7 +116,7 @@ long double creall(long double complex);
+
+ #if __STDC_VERSION__ >= 201112L
+ #if defined(_Imaginary_I)
+-#define __CMPLX(x, y, t) ((t)(x) + _Imaginary_I*(t)(y)))
++#define __CMPLX(x, y, t) ((t)(x) + _Imaginary_I*(t)(y))
+ #elif defined(__clang__)
+ #define __CMPLX(x, y, t) (+(_Complex t){ (t)(x), (t)(y) })
+ #else
+--- a/include/netinet/in.h
++++ b/include/netinet/in.h
+@@ -103,6 +103,7 @@ uint16_t ntohs(uint16_t);
+ #define IPPROTO_SCTP 132
+ #define IPPROTO_MH 135
+ #define IPPROTO_UDPLITE 136
++#define IPPROTO_MPLS 137
+ #define IPPROTO_RAW 255
+ #define IPPROTO_MAX 256
+
+@@ -200,6 +201,7 @@ uint16_t ntohs(uint16_t);
+ #define IP_MINTTL 21
+ #define IP_NODEFRAG 22
+ #define IP_CHECKSUM 23
++#define IP_BIND_ADDRESS_NO_PORT 24
+ #define IP_MULTICAST_IF 32
+ #define IP_MULTICAST_TTL 33
+ #define IP_MULTICAST_LOOP 34
+--- a/include/netinet/tcp.h
++++ b/include/netinet/tcp.h
+@@ -27,6 +27,9 @@
+ #define TCP_FASTOPEN 23
+ #define TCP_TIMESTAMP 24
+ #define TCP_NOTSENT_LOWAT 25
++#define TCP_CC_INFO 26
++#define TCP_SAVE_SYN 27
++#define TCP_SAVED_SYN 28
+
+ #define TCP_ESTABLISHED 1
+ #define TCP_SYN_SENT 2
+@@ -41,7 +44,20 @@
+ #define TCP_CLOSING 11
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
++#define TCPOPT_EOL 0
++#define TCPOPT_NOP 1
++#define TCPOPT_MAXSEG 2
++#define TCPOPT_WINDOW 3
++#define TCPOPT_SACK_PERMITTED 4
++#define TCPOPT_SACK 5
++#define TCPOPT_TIMESTAMP 8
++#define TCPOLEN_SACK_PERMITTED 2
++#define TCPOLEN_WINDOW 3
++#define TCPOLEN_MAXSEG 4
++#define TCPOLEN_TIMESTAMP 10
++
+ #define SOL_TCP 6
++
+ #include <sys/types.h>
+ #include <sys/socket.h>
+ #include <stdint.h>
+@@ -164,6 +180,10 @@ struct tcp_info
+ uint32_t tcpi_total_retrans;
+ uint64_t tcpi_pacing_rate;
+ uint64_t tcpi_max_pacing_rate;
++ uint64_t tcpi_bytes_acked;
++ uint64_t tcpi_bytes_received;
++ uint32_t tcpi_segs_out;
++ uint32_t tcpi_segs_in;
+ };
+
+ #define TCP_MD5SIG_MAXKEYLEN 80
+--- a/include/netpacket/packet.h
++++ b/include/netpacket/packet.h
+@@ -32,10 +32,27 @@ struct packet_mreq {
+ #define PACKET_RECV_OUTPUT 3
+ #define PACKET_RX_RING 5
+ #define PACKET_STATISTICS 6
++#define PACKET_COPY_THRESH 7
++#define PACKET_AUXDATA 8
++#define PACKET_ORIGDEV 9
++#define PACKET_VERSION 10
++#define PACKET_HDRLEN 11
++#define PACKET_RESERVE 12
++#define PACKET_TX_RING 13
++#define PACKET_LOSS 14
++#define PACKET_VNET_HDR 15
++#define PACKET_TX_TIMESTAMP 16
++#define PACKET_TIMESTAMP 17
++#define PACKET_FANOUT 18
++#define PACKET_TX_HAS_OFF 19
++#define PACKET_QDISC_BYPASS 20
++#define PACKET_ROLLOVER_STATS 21
++#define PACKET_FANOUT_DATA 22
+
+ #define PACKET_MR_MULTICAST 0
+ #define PACKET_MR_PROMISC 1
+ #define PACKET_MR_ALLMULTI 2
++#define PACKET_MR_UNICAST 3
+
+ #ifdef __cplusplus
+ }
+--- a/include/signal.h
++++ b/include/signal.h
+@@ -27,8 +27,6 @@ extern "C" {
+
+ #include <bits/alltypes.h>
+
+-#define SIG_HOLD ((void (*)(int)) 2)
+-
+ #define SIG_BLOCK 0
+ #define SIG_UNBLOCK 1
+ #define SIG_SETMASK 2
+@@ -43,6 +41,18 @@ extern "C" {
+ #define SI_USER 0
+ #define SI_KERNEL 128
+
++typedef struct sigaltstack stack_t;
++
++#endif
++
++#include <bits/signal.h>
++
++#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
++ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
++ || defined(_BSD_SOURCE)
++
++#define SIG_HOLD ((void (*)(int)) 2)
++
+ #define FPE_INTDIV 1
+ #define FPE_INTOVF 2
+ #define FPE_FLTDIV 3
+@@ -78,15 +88,17 @@ extern "C" {
+ #define CLD_STOPPED 5
+ #define CLD_CONTINUED 6
+
+-typedef struct sigaltstack stack_t;
+-
+ union sigval {
+ int sival_int;
+ void *sival_ptr;
+ };
+
+ typedef struct {
++#ifdef __SI_SWAP_ERRNO_CODE
++ int si_signo, si_code, si_errno;
++#else
+ int si_signo, si_errno, si_code;
++#endif
+ union {
+ char __pad[128 - 2*sizeof(int) - sizeof(long)];
+ struct {
+@@ -240,8 +252,6 @@ int sigandset(sigset_t *, const sigset_t
+ #define SA_ONESHOT SA_RESETHAND
+ #endif
+
+-#include <bits/signal.h>
+-
+ #define SIG_ERR ((void (*)(int))-1)
+ #define SIG_DFL ((void (*)(int)) 0)
+ #define SIG_IGN ((void (*)(int)) 1)
+--- a/include/sys/mman.h
++++ b/include/sys/mman.h
+@@ -39,6 +39,7 @@ int remap_file_pages (void *, size_t, in
+ #endif
+
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
++#define MLOCK_ONFAULT 0x01
+ int madvise (void *, size_t, int);
+ int mincore (void *, size_t, unsigned char *);
+ #endif
+--- a/include/sys/mount.h
++++ b/include/sys/mount.h
+@@ -46,12 +46,13 @@ extern "C" {
+ #define MS_KERNMOUNT (1<<22)
+ #define MS_I_VERSION (1<<23)
+ #define MS_STRICTATIME (1<<24)
++#define MS_LAZYTIME (1<<25)
+ #define MS_NOSEC (1<<28)
+ #define MS_BORN (1<<29)
+ #define MS_ACTIVE (1<<30)
+ #define MS_NOUSER (1U<<31)
+
+-#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_I_VERSION)
++#define MS_RMT_MASK (MS_RDONLY|MS_SYNCHRONOUS|MS_MANDLOCK|MS_I_VERSION|MS_LAZYTIME)
+
+ #define MS_MGC_VAL 0xc0ed0000
+ #define MS_MGC_MSK 0xffff0000
+--- a/include/sys/prctl.h
++++ b/include/sys/prctl.h
+@@ -124,6 +124,12 @@ struct prctl_mm_map {
+ #define PR_FP_MODE_FR (1 << 0)
+ #define PR_FP_MODE_FRE (1 << 1)
+
++#define PR_CAP_AMBIENT 47
++#define PR_CAP_AMBIENT_IS_SET 1
++#define PR_CAP_AMBIENT_RAISE 2
++#define PR_CAP_AMBIENT_LOWER 3
++#define PR_CAP_AMBIENT_CLEAR_ALL 4
++
+ int prctl (int, ...);
+
+ #ifdef __cplusplus
+--- a/include/sys/ptrace.h
++++ b/include/sys/ptrace.h
+@@ -39,6 +39,7 @@ extern "C" {
+ #define PTRACE_PEEKSIGINFO 0x4209
+ #define PTRACE_GETSIGMASK 0x420a
+ #define PTRACE_SETSIGMASK 0x420b
++#define PTRACE_SECCOMP_GET_FILTER 0x420c
+
+ #define PT_READ_I PTRACE_PEEKTEXT
+ #define PT_READ_D PTRACE_PEEKDATA
+@@ -72,7 +73,8 @@ extern "C" {
+ #define PTRACE_O_TRACEEXIT 0x00000040
+ #define PTRACE_O_TRACESECCOMP 0x00000080
+ #define PTRACE_O_EXITKILL 0x00100000
+-#define PTRACE_O_MASK 0x001000ff
++#define PTRACE_O_SUSPEND_SECCOMP 0x00200000
++#define PTRACE_O_MASK 0x003000ff
+
+ #define PTRACE_EVENT_FORK 1
+ #define PTRACE_EVENT_VFORK 2
+--- a/include/sys/socket.h
++++ b/include/sys/socket.h
+@@ -96,6 +96,7 @@ struct linger
+ #define PF_WANPIPE 25
+ #define PF_LLC 26
+ #define PF_IB 27
++#define PF_MPLS 28
+ #define PF_CAN 29
+ #define PF_TIPC 30
+ #define PF_BLUETOOTH 31
+@@ -141,6 +142,7 @@ struct linger
+ #define AF_WANPIPE PF_WANPIPE
+ #define AF_LLC PF_LLC
+ #define AF_IB PF_IB
++#define AF_MPLS PF_MPLS
+ #define AF_CAN PF_CAN
+ #define AF_TIPC PF_TIPC
+ #define AF_BLUETOOTH PF_BLUETOOTH
+@@ -255,6 +257,7 @@ struct linger
+ #define MSG_NOSIGNAL 0x4000
+ #define MSG_MORE 0x8000
+ #define MSG_WAITFORONE 0x10000
++#define MSG_FASTOPEN 0x20000000
+ #define MSG_CMSG_CLOEXEC 0x40000000
+
+ #define __CMSG_LEN(cmsg) (((cmsg)->cmsg_len + sizeof(long) - 1) & ~(long)(sizeof(long) - 1))
+--- /dev/null
++++ b/ldso/dlstart.c
+@@ -0,0 +1,146 @@
++#include <stddef.h>
++#include "dynlink.h"
++
++#ifndef START
++#define START "_dlstart"
++#endif
++
++#include "crt_arch.h"
++
++#ifndef GETFUNCSYM
++#define GETFUNCSYM(fp, sym, got) do { \
++ __attribute__((__visibility__("hidden"))) void sym(); \
++ static void (*static_func_ptr)() = sym; \
++ __asm__ __volatile__ ( "" : "+m"(static_func_ptr) : : "memory"); \
++ *(fp) = static_func_ptr; } while(0)
++#endif
++
++__attribute__((__visibility__("hidden")))
++void _dlstart_c(size_t *sp, size_t *dynv)
++{
++ size_t i, aux[AUX_CNT], dyn[DYN_CNT];
++ size_t *rel, rel_size, base;
++
++ int argc = *sp;
++ char **argv = (void *)(sp+1);
++
++ for (i=argc+1; argv[i]; i++);
++ size_t *auxv = (void *)(argv+i+1);
++
++ for (i=0; i<AUX_CNT; i++) aux[i] = 0;
++ for (i=0; auxv[i]; i+=2) if (auxv[i]<AUX_CNT)
++ aux[auxv[i]] = auxv[i+1];
++
++#if DL_FDPIC
++ struct fdpic_loadseg *segs, fakeseg;
++ size_t j;
++ if (dynv) {
++ /* crt_arch.h entry point asm is responsible for reserving
++ * space and moving the extra fdpic arguments to the stack
++ * vector where they are easily accessible from C. */
++ segs = ((struct fdpic_loadmap *)(sp[-1] ? sp[-1] : sp[-2]))->segs;
++ } else {
++ /* If dynv is null, the entry point was started from loader
++ * that is not fdpic-aware. We can assume normal fixed-
++ * displacement ELF loading was performed, but when ldso was
++ * run as a command, finding the Ehdr is a heursitic: we
++ * have to assume Phdrs start in the first 4k of the file. */
++ base = aux[AT_BASE];
++ if (!base) base = aux[AT_PHDR] & -4096;
++ segs = &fakeseg;
++ segs[0].addr = base;
++ segs[0].p_vaddr = 0;
++ segs[0].p_memsz = -1;
++ Ehdr *eh = (void *)base;
++ Phdr *ph = (void *)(base + eh->e_phoff);
++ size_t phnum = eh->e_phnum;
++ size_t phent = eh->e_phentsize;
++ while (phnum-- && ph->p_type != PT_DYNAMIC)
++ ph = (void *)((size_t)ph + phent);
++ dynv = (void *)(base + ph->p_vaddr);
++ }
++#endif
++
++ for (i=0; i<DYN_CNT; i++) dyn[i] = 0;
++ for (i=0; dynv[i]; i+=2) if (dynv[i]<DYN_CNT)
++ dyn[dynv[i]] = dynv[i+1];
++
++#if DL_FDPIC
++ for (i=0; i<DYN_CNT; i++) {
++ if (i==DT_RELASZ || i==DT_RELSZ) continue;
++ if (!dyn[i]) continue;
++ for (j=0; dyn[i]-segs[j].p_vaddr >= segs[j].p_memsz; j++);
++ dyn[i] += segs[j].addr - segs[j].p_vaddr;
++ }
++ base = 0;
++
++ const Sym *syms = (void *)dyn[DT_SYMTAB];
++
++ rel = (void *)dyn[DT_RELA];
++ rel_size = dyn[DT_RELASZ];
++ for (; rel_size; rel+=3, rel_size-=3*sizeof(size_t)) {
++ if (!IS_RELATIVE(rel[1], syms)) continue;
++ for (j=0; rel[0]-segs[j].p_vaddr >= segs[j].p_memsz; j++);
++ size_t *rel_addr = (void *)
++ (rel[0] + segs[j].addr - segs[j].p_vaddr);
++ if (R_TYPE(rel[1]) == REL_FUNCDESC_VAL) {
++ *rel_addr += segs[rel_addr[1]].addr
++ - segs[rel_addr[1]].p_vaddr
++ + syms[R_SYM(rel[1])].st_value;
++ rel_addr[1] = dyn[DT_PLTGOT];
++ } else {
++ size_t val = syms[R_SYM(rel[1])].st_value;
++ for (j=0; val-segs[j].p_vaddr >= segs[j].p_memsz; j++);
++ *rel_addr = rel[2] + segs[j].addr - segs[j].p_vaddr + val;
++ }
++ }
++#else
++ /* If the dynamic linker is invoked as a command, its load
++ * address is not available in the aux vector. Instead, compute
++ * the load address as the difference between &_DYNAMIC and the
++ * virtual address in the PT_DYNAMIC program header. */
++ base = aux[AT_BASE];
++ if (!base) {
++ size_t phnum = aux[AT_PHNUM];
++ size_t phentsize = aux[AT_PHENT];
++ Phdr *ph = (void *)aux[AT_PHDR];
++ for (i=phnum; i--; ph = (void *)((char *)ph + phentsize)) {
++ if (ph->p_type == PT_DYNAMIC) {
++ base = (size_t)dynv - ph->p_vaddr;
++ break;
++ }
++ }
++ }
++
++ /* MIPS uses an ugly packed form for GOT relocations. Since we
++ * can't make function calls yet and the code is tiny anyway,
++ * it's simply inlined here. */
++ if (NEED_MIPS_GOT_RELOCS) {
++ size_t local_cnt = 0;
++ size_t *got = (void *)(base + dyn[DT_PLTGOT]);
++ for (i=0; dynv[i]; i+=2) if (dynv[i]==DT_MIPS_LOCAL_GOTNO)
++ local_cnt = dynv[i+1];
++ for (i=0; i<local_cnt; i++) got[i] += base;
++ }
++
++ rel = (void *)(base+dyn[DT_REL]);
++ rel_size = dyn[DT_RELSZ];
++ for (; rel_size; rel+=2, rel_size-=2*sizeof(size_t)) {
++ if (!IS_RELATIVE(rel[1], 0)) continue;
++ size_t *rel_addr = (void *)(base + rel[0]);
++ *rel_addr += base;
++ }
++
++ rel = (void *)(base+dyn[DT_RELA]);
++ rel_size = dyn[DT_RELASZ];
++ for (; rel_size; rel+=3, rel_size-=3*sizeof(size_t)) {
++ if (!IS_RELATIVE(rel[1], 0)) continue;
++ size_t *rel_addr = (void *)(base + rel[0]);
++ *rel_addr = base + rel[2];
++ }
++#endif
++
++ stage2_func dls2;
++ GETFUNCSYM(&dls2, __dls2, base+dyn[DT_PLTGOT]);
++ dls2((void *)base, sp);
++}
+--- /dev/null
++++ b/ldso/dynlink.c
+@@ -0,0 +1,1931 @@
++#define _GNU_SOURCE
++#include <stdio.h>
++#include <stdlib.h>
++#include <stdarg.h>
++#include <stddef.h>
++#include <string.h>
++#include <unistd.h>
++#include <stdint.h>
++#include <elf.h>
++#include <sys/mman.h>
++#include <limits.h>
++#include <fcntl.h>
++#include <sys/stat.h>
++#include <errno.h>
++#include <link.h>
++#include <setjmp.h>
++#include <pthread.h>
++#include <ctype.h>
++#include <dlfcn.h>
++#include "pthread_impl.h"
++#include "libc.h"
++#include "dynlink.h"
++
++static void error(const char *, ...);
++
++#define MAXP2(a,b) (-(-(a)&-(b)))
++#define ALIGN(x,y) ((x)+(y)-1 & -(y))
++
++struct debug {
++ int ver;
++ void *head;
++ void (*bp)(void);
++ int state;
++ void *base;
++};
++
++struct td_index {
++ size_t args[2];
++ struct td_index *next;
++};
++
++struct dso {
++#if DL_FDPIC
++ struct fdpic_loadmap *loadmap;
++#else
++ unsigned char *base;
++#endif
++ char *name;
++ size_t *dynv;
++ struct dso *next, *prev;
++
++ Phdr *phdr;
++ int phnum;
++ size_t phentsize;
++ int refcnt;
++ Sym *syms;
++ uint32_t *hashtab;
++ uint32_t *ghashtab;
++ int16_t *versym;
++ char *strings;
++ unsigned char *map;
++ size_t map_len;
++ dev_t dev;
++ ino_t ino;
++ signed char global;
++ char relocated;
++ char constructed;
++ char kernel_mapped;
++ struct dso **deps, *needed_by;
++ char *rpath_orig, *rpath;
++ struct tls_module tls;
++ size_t tls_id;
++ size_t relro_start, relro_end;
++ void **new_dtv;
++ unsigned char *new_tls;
++ volatile int new_dtv_idx, new_tls_idx;
++ struct td_index *td_index;
++ struct dso *fini_next;
++ char *shortname;
++#if DL_FDPIC
++ unsigned char *base;
++#else
++ struct fdpic_loadmap *loadmap;
++#endif
++ struct funcdesc {
++ void *addr;
++ size_t *got;
++ } *funcdescs;
++ size_t *got;
++ char buf[];
++};
++
++struct symdef {
++ Sym *sym;
++ struct dso *dso;
++};
++
++int __init_tp(void *);
++void __init_libc(char **, char *);
++void *__copy_tls(unsigned char *);
++
++__attribute__((__visibility__("hidden")))
++const char *__libc_get_version(void);
++
++static struct builtin_tls {
++ char c;
++ struct pthread pt;
++ void *space[16];
++} builtin_tls[1];
++#define MIN_TLS_ALIGN offsetof(struct builtin_tls, pt)
++
++#define ADDEND_LIMIT 4096
++static size_t *saved_addends, *apply_addends_to;
++
++static struct dso ldso;
++static struct dso *head, *tail, *fini_head;
++static char *env_path, *sys_path;
++static unsigned long long gencnt;
++static int runtime;
++static int ldd_mode;
++static int ldso_fail;
++static int noload;
++static jmp_buf *rtld_fail;
++static pthread_rwlock_t lock;
++static struct debug debug;
++static struct tls_module *tls_tail;
++static size_t tls_cnt, tls_offset, tls_align = MIN_TLS_ALIGN;
++static size_t static_tls_cnt;
++static pthread_mutex_t init_fini_lock = { ._m_type = PTHREAD_MUTEX_RECURSIVE };
++static struct fdpic_loadmap *app_loadmap;
++static struct fdpic_dummy_loadmap app_dummy_loadmap;
++
++struct debug *_dl_debug_addr = &debug;
++
++__attribute__((__visibility__("hidden")))
++void (*const __init_array_start)(void)=0, (*const __fini_array_start)(void)=0;
++
++__attribute__((__visibility__("hidden")))
++extern void (*const __init_array_end)(void), (*const __fini_array_end)(void);
++
++weak_alias(__init_array_start, __init_array_end);
++weak_alias(__fini_array_start, __fini_array_end);
++
++static int dl_strcmp(const char *l, const char *r)
++{
++ for (; *l==*r && *l; l++, r++);
++ return *(unsigned char *)l - *(unsigned char *)r;
++}
++#define strcmp(l,r) dl_strcmp(l,r)
++
++/* Compute load address for a virtual address in a given dso. */
++#if DL_FDPIC
++static void *laddr(const struct dso *p, size_t v)
++{
++ size_t j=0;
++ if (!p->loadmap) return p->base + v;
++ for (j=0; v-p->loadmap->segs[j].p_vaddr >= p->loadmap->segs[j].p_memsz; j++);
++ return (void *)(v - p->loadmap->segs[j].p_vaddr + p->loadmap->segs[j].addr);
++}
++#define fpaddr(p, v) ((void (*)())&(struct funcdesc){ \
++ laddr(p, v), (p)->got })
++#else
++#define laddr(p, v) (void *)((p)->base + (v))
++#define fpaddr(p, v) ((void (*)())laddr(p, v))
++#endif
++
++static void decode_vec(size_t *v, size_t *a, size_t cnt)
++{
++ size_t i;
++ for (i=0; i<cnt; i++) a[i] = 0;
++ for (; v[0]; v+=2) if (v[0]-1<cnt-1) {
++ a[0] |= 1UL<<v[0];
++ a[v[0]] = v[1];
++ }
++}
++
++static int search_vec(size_t *v, size_t *r, size_t key)
++{
++ for (; v[0]!=key; v+=2)
++ if (!v[0]) return 0;
++ *r = v[1];
++ return 1;
++}
++
++static uint32_t sysv_hash(const char *s0)
++{
++ const unsigned char *s = (void *)s0;
++ uint_fast32_t h = 0;
++ while (*s) {
++ h = 16*h + *s++;
++ h ^= h>>24 & 0xf0;
++ }
++ return h & 0xfffffff;
++}
++
++static uint32_t gnu_hash(const char *s0)
++{
++ const unsigned char *s = (void *)s0;
++ uint_fast32_t h = 5381;
++ for (; *s; s++)
++ h += h*32 + *s;
++ return h;
++}
++
++static Sym *sysv_lookup(const char *s, uint32_t h, struct dso *dso)
++{
++ size_t i;
++ Sym *syms = dso->syms;
++ uint32_t *hashtab = dso->hashtab;
++ char *strings = dso->strings;
++ for (i=hashtab[2+h%hashtab[0]]; i; i=hashtab[2+hashtab[0]+i]) {
++ if ((!dso->versym || dso->versym[i] >= 0)
++ && (!strcmp(s, strings+syms[i].st_name)))
++ return syms+i;
++ }
++ return 0;
++}
++
++static Sym *gnu_lookup(uint32_t h1, uint32_t *hashtab, struct dso *dso, const char *s)
++{
++ uint32_t nbuckets = hashtab[0];
++ uint32_t *buckets = hashtab + 4 + hashtab[2]*(sizeof(size_t)/4);
++ uint32_t i = buckets[h1 % nbuckets];
++
++ if (!i) return 0;
++
++ uint32_t *hashval = buckets + nbuckets + (i - hashtab[1]);
++
++ for (h1 |= 1; ; i++) {
++ uint32_t h2 = *hashval++;
++ if ((h1 == (h2|1)) && (!dso->versym || dso->versym[i] >= 0)
++ && !strcmp(s, dso->strings + dso->syms[i].st_name))
++ return dso->syms+i;
++ if (h2 & 1) break;
++ }
++
++ return 0;
++}
++
++static Sym *gnu_lookup_filtered(uint32_t h1, uint32_t *hashtab, struct dso *dso, const char *s, uint32_t fofs, size_t fmask)
++{
++ const size_t *bloomwords = (const void *)(hashtab+4);
++ size_t f = bloomwords[fofs & (hashtab[2]-1)];
++ if (!(f & fmask)) return 0;
++
++ f >>= (h1 >> hashtab[3]) % (8 * sizeof f);
++ if (!(f & 1)) return 0;
++
++ return gnu_lookup(h1, hashtab, dso, s);
++}
++
++#define OK_TYPES (1<<STT_NOTYPE | 1<<STT_OBJECT | 1<<STT_FUNC | 1<<STT_COMMON | 1<<STT_TLS)
++#define OK_BINDS (1<<STB_GLOBAL | 1<<STB_WEAK | 1<<STB_GNU_UNIQUE)
++
++#ifndef ARCH_SYM_REJECT_UND
++#define ARCH_SYM_REJECT_UND(s) 0
++#endif
++
++static struct symdef find_sym(struct dso *dso, const char *s, int need_def)
++{
++ uint32_t h = 0, gh, gho, *ght;
++ size_t ghm = 0;
++ struct symdef def = {0};
++ for (; dso; dso=dso->next) {
++ Sym *sym;
++ if (!dso->global) continue;
++ if ((ght = dso->ghashtab)) {
++ if (!ghm) {
++ gh = gnu_hash(s);
++ int maskbits = 8 * sizeof ghm;
++ gho = gh / maskbits;
++ ghm = 1ul << gh % maskbits;
++ }
++ sym = gnu_lookup_filtered(gh, ght, dso, s, gho, ghm);
++ } else {
++ if (!h) h = sysv_hash(s);
++ sym = sysv_lookup(s, h, dso);
++ }
++ if (!sym) continue;
++ if (!sym->st_shndx)
++ if (need_def || (sym->st_info&0xf) == STT_TLS
++ || ARCH_SYM_REJECT_UND(sym))
++ continue;
++ if (!sym->st_value)
++ if ((sym->st_info&0xf) != STT_TLS)
++ continue;
++ if (!(1<<(sym->st_info&0xf) & OK_TYPES)) continue;
++ if (!(1<<(sym->st_info>>4) & OK_BINDS)) continue;
++
++ if (def.sym && sym->st_info>>4 == STB_WEAK) continue;
++ def.sym = sym;
++ def.dso = dso;
++ if (sym->st_info>>4 == STB_GLOBAL) break;
++ }
++ return def;
++}
++
++__attribute__((__visibility__("hidden")))
++ptrdiff_t __tlsdesc_static(), __tlsdesc_dynamic();
++
++static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stride)
++{
++ unsigned char *base = dso->base;
++ Sym *syms = dso->syms;
++ char *strings = dso->strings;
++ Sym *sym;
++ const char *name;
++ void *ctx;
++ int type;
++ int sym_index;
++ struct symdef def;
++ size_t *reloc_addr;
++ size_t sym_val;
++ size_t tls_val;
++ size_t addend;
++ int skip_relative = 0, reuse_addends = 0, save_slot = 0;
++
++ if (dso == &ldso) {
++ /* Only ldso's REL table needs addend saving/reuse. */
++ if (rel == apply_addends_to)
++ reuse_addends = 1;
++ skip_relative = 1;
++ }
++
++ for (; rel_size; rel+=stride, rel_size-=stride*sizeof(size_t)) {
++ if (skip_relative && IS_RELATIVE(rel[1], dso->syms)) continue;
++ type = R_TYPE(rel[1]);
++ if (type == REL_NONE) continue;
++ sym_index = R_SYM(rel[1]);
++ reloc_addr = laddr(dso, rel[0]);
++ if (sym_index) {
++ sym = syms + sym_index;
++ name = strings + sym->st_name;
++ ctx = type==REL_COPY ? head->next : head;
++ def = (sym->st_info&0xf) == STT_SECTION
++ ? (struct symdef){ .dso = dso, .sym = sym }
++ : find_sym(ctx, name, type==REL_PLT);
++ if (!def.sym && (sym->st_shndx != SHN_UNDEF
++ || sym->st_info>>4 != STB_WEAK)) {
++ error("Error relocating %s: %s: symbol not found",
++ dso->name, name);
++ if (runtime) longjmp(*rtld_fail, 1);
++ continue;
++ }
++ } else {
++ sym = 0;
++ def.sym = 0;
++ def.dso = dso;
++ }
++
++ if (stride > 2) {
++ addend = rel[2];
++ } else if (type==REL_GOT || type==REL_PLT|| type==REL_COPY) {
++ addend = 0;
++ } else if (reuse_addends) {
++ /* Save original addend in stage 2 where the dso
++ * chain consists of just ldso; otherwise read back
++ * saved addend since the inline one was clobbered. */
++ if (head==&ldso)
++ saved_addends[save_slot] = *reloc_addr;
++ addend = saved_addends[save_slot++];
++ } else {
++ addend = *reloc_addr;
++ }
++
++ sym_val = def.sym ? (size_t)laddr(def.dso, def.sym->st_value) : 0;
++ tls_val = def.sym ? def.sym->st_value : 0;
++
++ switch(type) {
++ case REL_NONE:
++ break;
++ case REL_OFFSET:
++ addend -= (size_t)reloc_addr;
++ case REL_SYMBOLIC:
++ case REL_GOT:
++ case REL_PLT:
++ *reloc_addr = sym_val + addend;
++ break;
++ case REL_RELATIVE:
++ *reloc_addr = (size_t)base + addend;
++ break;
++ case REL_SYM_OR_REL:
++ if (sym) *reloc_addr = sym_val + addend;
++ else *reloc_addr = (size_t)base + addend;
++ break;
++ case REL_COPY:
++ memcpy(reloc_addr, (void *)sym_val, sym->st_size);
++ break;
++ case REL_OFFSET32:
++ *(uint32_t *)reloc_addr = sym_val + addend
++ - (size_t)reloc_addr;
++ break;
++ case REL_FUNCDESC:
++ *reloc_addr = def.sym ? (size_t)(def.dso->funcdescs
++ + (def.sym - def.dso->syms)) : 0;
++ break;
++ case REL_FUNCDESC_VAL:
++ if ((sym->st_info&0xf) == STT_SECTION) *reloc_addr += sym_val;
++ else *reloc_addr = sym_val;
++ reloc_addr[1] = def.sym ? (size_t)def.dso->got : 0;
++ break;
++ case REL_DTPMOD:
++ *reloc_addr = def.dso->tls_id;
++ break;
++ case REL_DTPOFF:
++ *reloc_addr = tls_val + addend - DTP_OFFSET;
++ break;
++#ifdef TLS_ABOVE_TP
++ case REL_TPOFF:
++ *reloc_addr = tls_val + def.dso->tls.offset + TPOFF_K + addend;
++ break;
++#else
++ case REL_TPOFF:
++ *reloc_addr = tls_val - def.dso->tls.offset + addend;
++ break;
++ case REL_TPOFF_NEG:
++ *reloc_addr = def.dso->tls.offset - tls_val + addend;
++ break;
++#endif
++ case REL_TLSDESC:
++ if (stride<3) addend = reloc_addr[1];
++ if (runtime && def.dso->tls_id >= static_tls_cnt) {
++ struct td_index *new = malloc(sizeof *new);
++ if (!new) {
++ error(
++ "Error relocating %s: cannot allocate TLSDESC for %s",
++ dso->name, sym ? name : "(local)" );
++ longjmp(*rtld_fail, 1);
++ }
++ new->next = dso->td_index;
++ dso->td_index = new;
++ new->args[0] = def.dso->tls_id;
++ new->args[1] = tls_val + addend;
++ reloc_addr[0] = (size_t)__tlsdesc_dynamic;
++ reloc_addr[1] = (size_t)new;
++ } else {
++ reloc_addr[0] = (size_t)__tlsdesc_static;
++#ifdef TLS_ABOVE_TP
++ reloc_addr[1] = tls_val + def.dso->tls.offset
++ + TPOFF_K + addend;
++#else
++ reloc_addr[1] = tls_val - def.dso->tls.offset
++ + addend;
++#endif
++ }
++ break;
++ default:
++ error("Error relocating %s: unsupported relocation type %d",
++ dso->name, type);
++ if (runtime) longjmp(*rtld_fail, 1);
++ continue;
++ }
++ }
++}
++
++/* A huge hack: to make up for the wastefulness of shared libraries
++ * needing at least a page of dirty memory even if they have no global
++ * data, we reclaim the gaps at the beginning and end of writable maps
++ * and "donate" them to the heap by setting up minimal malloc
++ * structures and then freeing them. */
++
++static void reclaim(struct dso *dso, size_t start, size_t end)
++{
++ size_t *a, *z;
++ if (start >= dso->relro_start && start < dso->relro_end) start = dso->relro_end;
++ if (end >= dso->relro_start && end < dso->relro_end) end = dso->relro_start;
++ start = start + 6*sizeof(size_t)-1 & -4*sizeof(size_t);
++ end = (end & -4*sizeof(size_t)) - 2*sizeof(size_t);
++ if (start>end || end-start < 4*sizeof(size_t)) return;
++ a = laddr(dso, start);
++ z = laddr(dso, end);
++ a[-2] = 1;
++ a[-1] = z[0] = end-start + 2*sizeof(size_t) | 1;
++ z[1] = 1;
++ free(a);
++}
++
++static void reclaim_gaps(struct dso *dso)
++{
++ Phdr *ph = dso->phdr;
++ size_t phcnt = dso->phnum;
++
++ if (DL_FDPIC) return; // FIXME
++ for (; phcnt--; ph=(void *)((char *)ph+dso->phentsize)) {
++ if (ph->p_type!=PT_LOAD) continue;
++ if ((ph->p_flags&(PF_R|PF_W))!=(PF_R|PF_W)) continue;
++ reclaim(dso, ph->p_vaddr & -PAGE_SIZE, ph->p_vaddr);
++ reclaim(dso, ph->p_vaddr+ph->p_memsz,
++ ph->p_vaddr+ph->p_memsz+PAGE_SIZE-1 & -PAGE_SIZE);
++ }
++}
++
++static void *mmap_fixed(void *p, size_t n, int prot, int flags, int fd, off_t off)
++{
++ static int no_map_fixed;
++ char *q;
++ if (!no_map_fixed) {
++ q = mmap(p, n, prot, flags|MAP_FIXED, fd, off);
++ if (!DL_NOMMU_SUPPORT || q != MAP_FAILED || errno != EINVAL)
++ return q;
++ no_map_fixed = 1;
++ }
++ /* Fallbacks for MAP_FIXED failure on NOMMU kernels. */
++ if (flags & MAP_ANONYMOUS) {
++ memset(p, 0, n);
++ return p;
++ }
++ ssize_t r;
++ if (lseek(fd, off, SEEK_SET) < 0) return MAP_FAILED;
++ for (q=p; n; q+=r, off+=r, n-=r) {
++ r = read(fd, q, n);
++ if (r < 0 && errno != EINTR) return MAP_FAILED;
++ if (!r) {
++ memset(q, 0, n);
++ break;
++ }
++ }
++ return p;
++}
++
++static void unmap_library(struct dso *dso)
++{
++ if (dso->loadmap) {
++ size_t i;
++ for (i=0; i<dso->loadmap->nsegs; i++) {
++ if (!dso->loadmap->segs[i].p_memsz)
++ continue;
++ munmap((void *)dso->loadmap->segs[i].addr,
++ dso->loadmap->segs[i].p_memsz);
++ }
++ free(dso->loadmap);
++ } else if (dso->map && dso->map_len) {
++ munmap(dso->map, dso->map_len);
++ }
++}
++
++static void *map_library(int fd, struct dso *dso)
++{
++ Ehdr buf[(896+sizeof(Ehdr))/sizeof(Ehdr)];
++ void *allocated_buf=0;
++ size_t phsize;
++ size_t addr_min=SIZE_MAX, addr_max=0, map_len;
++ size_t this_min, this_max;
++ size_t nsegs = 0;
++ off_t off_start;
++ Ehdr *eh;
++ Phdr *ph, *ph0;
++ unsigned prot;
++ unsigned char *map=MAP_FAILED, *base;
++ size_t dyn=0;
++ size_t tls_image=0;
++ size_t i;
++
++ ssize_t l = read(fd, buf, sizeof buf);
++ eh = buf;
++ if (l<0) return 0;
++ if (l<sizeof *eh || (eh->e_type != ET_DYN && eh->e_type != ET_EXEC))
++ goto noexec;
++ phsize = eh->e_phentsize * eh->e_phnum;
++ if (phsize > sizeof buf - sizeof *eh) {
++ allocated_buf = malloc(phsize);
++ if (!allocated_buf) return 0;
++ l = pread(fd, allocated_buf, phsize, eh->e_phoff);
++ if (l < 0) goto error;
++ if (l != phsize) goto noexec;
++ ph = ph0 = allocated_buf;
++ } else if (eh->e_phoff + phsize > l) {
++ l = pread(fd, buf+1, phsize, eh->e_phoff);
++ if (l < 0) goto error;
++ if (l != phsize) goto noexec;
++ ph = ph0 = (void *)(buf + 1);
++ } else {
++ ph = ph0 = (void *)((char *)buf + eh->e_phoff);
++ }
++ for (i=eh->e_phnum; i; i--, ph=(void *)((char *)ph+eh->e_phentsize)) {
++ if (ph->p_type == PT_DYNAMIC) {
++ dyn = ph->p_vaddr;
++ } else if (ph->p_type == PT_TLS) {
++ tls_image = ph->p_vaddr;
++ dso->tls.align = ph->p_align;
++ dso->tls.len = ph->p_filesz;
++ dso->tls.size = ph->p_memsz;
++ } else if (ph->p_type == PT_GNU_RELRO) {
++ dso->relro_start = ph->p_vaddr & -PAGE_SIZE;
++ dso->relro_end = (ph->p_vaddr + ph->p_memsz) & -PAGE_SIZE;
++ }
++ if (ph->p_type != PT_LOAD) continue;
++ nsegs++;
++ if (ph->p_vaddr < addr_min) {
++ addr_min = ph->p_vaddr;
++ off_start = ph->p_offset;
++ prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
++ ((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
++ ((ph->p_flags&PF_X) ? PROT_EXEC : 0));
++ }
++ if (ph->p_vaddr+ph->p_memsz > addr_max) {
++ addr_max = ph->p_vaddr+ph->p_memsz;
++ }
++ }
++ if (!dyn) goto noexec;
++ if (DL_FDPIC && !(eh->e_flags & FDPIC_CONSTDISP_FLAG)) {
++ dso->loadmap = calloc(1, sizeof *dso->loadmap
++ + nsegs * sizeof *dso->loadmap->segs);
++ if (!dso->loadmap) goto error;
++ dso->loadmap->nsegs = nsegs;
++ for (ph=ph0, i=0; i<nsegs; ph=(void *)((char *)ph+eh->e_phentsize)) {
++ if (ph->p_type != PT_LOAD) continue;
++ prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
++ ((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
++ ((ph->p_flags&PF_X) ? PROT_EXEC : 0));
++ map = mmap(0, ph->p_memsz + (ph->p_vaddr & PAGE_SIZE-1),
++ prot, MAP_PRIVATE,
++ fd, ph->p_offset & -PAGE_SIZE);
++ if (map == MAP_FAILED) {
++ unmap_library(dso);
++ goto error;
++ }
++ dso->loadmap->segs[i].addr = (size_t)map +
++ (ph->p_vaddr & PAGE_SIZE-1);
++ dso->loadmap->segs[i].p_vaddr = ph->p_vaddr;
++ dso->loadmap->segs[i].p_memsz = ph->p_memsz;
++ i++;
++ if (prot & PROT_WRITE) {
++ size_t brk = (ph->p_vaddr & PAGE_SIZE-1)
++ + ph->p_filesz;
++ size_t pgbrk = brk + PAGE_SIZE-1 & -PAGE_SIZE;
++ size_t pgend = brk + ph->p_memsz - ph->p_filesz
++ + PAGE_SIZE-1 & -PAGE_SIZE;
++ if (pgend > pgbrk && mmap_fixed(map+pgbrk,
++ pgend-pgbrk, prot,
++ MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS,
++ -1, off_start) == MAP_FAILED)
++ goto error;
++ memset(map + brk, 0, pgbrk-brk);
++ }
++ }
++ map = (void *)dso->loadmap->segs[0].addr;
++ map_len = 0;
++ goto done_mapping;
++ }
++ addr_max += PAGE_SIZE-1;
++ addr_max &= -PAGE_SIZE;
++ addr_min &= -PAGE_SIZE;
++ off_start &= -PAGE_SIZE;
++ map_len = addr_max - addr_min + off_start;
++ /* The first time, we map too much, possibly even more than
++ * the length of the file. This is okay because we will not
++ * use the invalid part; we just need to reserve the right
++ * amount of virtual address space to map over later. */
++ map = DL_NOMMU_SUPPORT
++ ? mmap((void *)addr_min, map_len, PROT_READ|PROT_WRITE|PROT_EXEC,
++ MAP_PRIVATE|MAP_ANONYMOUS, -1, 0)
++ : mmap((void *)addr_min, map_len, prot,
++ MAP_PRIVATE, fd, off_start);
++ if (map==MAP_FAILED) goto error;
++ dso->map = map;
++ dso->map_len = map_len;
++ /* If the loaded file is not relocatable and the requested address is
++ * not available, then the load operation must fail. */
++ if (eh->e_type != ET_DYN && addr_min && map!=(void *)addr_min) {
++ errno = EBUSY;
++ goto error;
++ }
++ base = map - addr_min;
++ dso->phdr = 0;
++ dso->phnum = 0;
++ for (ph=ph0, i=eh->e_phnum; i; i--, ph=(void *)((char *)ph+eh->e_phentsize)) {
++ if (ph->p_type != PT_LOAD) continue;
++ /* Check if the programs headers are in this load segment, and
++ * if so, record the address for use by dl_iterate_phdr. */
++ if (!dso->phdr && eh->e_phoff >= ph->p_offset
++ && eh->e_phoff+phsize <= ph->p_offset+ph->p_filesz) {
++ dso->phdr = (void *)(base + ph->p_vaddr
++ + (eh->e_phoff-ph->p_offset));
++ dso->phnum = eh->e_phnum;
++ dso->phentsize = eh->e_phentsize;
++ }
++ /* Reuse the existing mapping for the lowest-address LOAD */
++ if ((ph->p_vaddr & -PAGE_SIZE) == addr_min && !DL_NOMMU_SUPPORT)
++ continue;
++ this_min = ph->p_vaddr & -PAGE_SIZE;
++ this_max = ph->p_vaddr+ph->p_memsz+PAGE_SIZE-1 & -PAGE_SIZE;
++ off_start = ph->p_offset & -PAGE_SIZE;
++ prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
++ ((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
++ ((ph->p_flags&PF_X) ? PROT_EXEC : 0));
++ if (mmap_fixed(base+this_min, this_max-this_min, prot, MAP_PRIVATE|MAP_FIXED, fd, off_start) == MAP_FAILED)
++ goto error;
++ if (ph->p_memsz > ph->p_filesz) {
++ size_t brk = (size_t)base+ph->p_vaddr+ph->p_filesz;
++ size_t pgbrk = brk+PAGE_SIZE-1 & -PAGE_SIZE;
++ memset((void *)brk, 0, pgbrk-brk & PAGE_SIZE-1);
++ if (pgbrk-(size_t)base < this_max && mmap_fixed((void *)pgbrk, (size_t)base+this_max-pgbrk, prot, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) == MAP_FAILED)
++ goto error;
++ }
++ }
++ for (i=0; ((size_t *)(base+dyn))[i]; i+=2)
++ if (((size_t *)(base+dyn))[i]==DT_TEXTREL) {
++ if (mprotect(map, map_len, PROT_READ|PROT_WRITE|PROT_EXEC)
++ && errno != ENOSYS)
++ goto error;
++ break;
++ }
++done_mapping:
++ dso->base = base;
++ dso->dynv = laddr(dso, dyn);
++ if (dso->tls.size) dso->tls.image = laddr(dso, tls_image);
++ if (!runtime) reclaim_gaps(dso);
++ free(allocated_buf);
++ return map;
++noexec:
++ errno = ENOEXEC;
++error:
++ if (map!=MAP_FAILED) unmap_library(dso);
++ free(allocated_buf);
++ return 0;
++}
++
++static int path_open(const char *name, const char *s, char *buf, size_t buf_size)
++{
++ size_t l;
++ int fd;
++ for (;;) {
++ s += strspn(s, ":\n");
++ l = strcspn(s, ":\n");
++ if (l-1 >= INT_MAX) return -1;
++ if (snprintf(buf, buf_size, "%.*s/%s", (int)l, s, name) < buf_size) {
++ if ((fd = open(buf, O_RDONLY|O_CLOEXEC))>=0) return fd;
++ switch (errno) {
++ case ENOENT:
++ case ENOTDIR:
++ case EACCES:
++ case ENAMETOOLONG:
++ break;
++ default:
++ /* Any negative value but -1 will inhibit
++ * futher path search. */
++ return -2;
++ }
++ }
++ s += l;
++ }
++}
++
++static int fixup_rpath(struct dso *p, char *buf, size_t buf_size)
++{
++ size_t n, l;
++ const char *s, *t, *origin;
++ char *d;
++ if (p->rpath || !p->rpath_orig) return 0;
++ if (!strchr(p->rpath_orig, '$')) {
++ p->rpath = p->rpath_orig;
++ return 0;
++ }
++ n = 0;
++ s = p->rpath_orig;
++ while ((t=strchr(s, '$'))) {
++ if (strncmp(t, "$ORIGIN", 7) && strncmp(t, "${ORIGIN}", 9))
++ return 0;
++ s = t+1;
++ n++;
++ }
++ if (n > SSIZE_MAX/PATH_MAX) return 0;
++
++ if (p->kernel_mapped) {
++ /* $ORIGIN searches cannot be performed for the main program
++ * when it is suid/sgid/AT_SECURE. This is because the
++ * pathname is under the control of the caller of execve.
++ * For libraries, however, $ORIGIN can be processed safely
++ * since the library's pathname came from a trusted source
++ * (either system paths or a call to dlopen). */
++ if (libc.secure)
++ return 0;
++ l = readlink("/proc/self/exe", buf, buf_size);
++ if (l == -1) switch (errno) {
++ case ENOENT:
++ case ENOTDIR:
++ case EACCES:
++ break;
++ default:
++ return -1;
++ }
++ if (l >= buf_size)
++ return 0;
++ buf[l] = 0;
++ origin = buf;
++ } else {
++ origin = p->name;
++ }
++ t = strrchr(origin, '/');
++ l = t ? t-origin : 0;
++ p->rpath = malloc(strlen(p->rpath_orig) + n*l + 1);
++ if (!p->rpath) return -1;
++
++ d = p->rpath;
++ s = p->rpath_orig;
++ while ((t=strchr(s, '$'))) {
++ memcpy(d, s, t-s);
++ d += t-s;
++ memcpy(d, origin, l);
++ d += l;
++ /* It was determined previously that the '$' is followed
++ * either by "ORIGIN" or "{ORIGIN}". */
++ s = t + 7 + 2*(t[1]=='{');
++ }
++ strcpy(d, s);
++ return 0;
++}
++
++static void decode_dyn(struct dso *p)
++{
++ size_t dyn[DYN_CNT];
++ decode_vec(p->dynv, dyn, DYN_CNT);
++ p->syms = laddr(p, dyn[DT_SYMTAB]);
++ p->strings = laddr(p, dyn[DT_STRTAB]);
++ if (dyn[0]&(1<<DT_HASH))
++ p->hashtab = laddr(p, dyn[DT_HASH]);
++ if (dyn[0]&(1<<DT_RPATH))
++ p->rpath_orig = p->strings + dyn[DT_RPATH];
++ if (dyn[0]&(1<<DT_RUNPATH))
++ p->rpath_orig = p->strings + dyn[DT_RUNPATH];
++ if (dyn[0]&(1<<DT_PLTGOT))
++ p->got = laddr(p, dyn[DT_PLTGOT]);
++ if (search_vec(p->dynv, dyn, DT_GNU_HASH))
++ p->ghashtab = laddr(p, *dyn);
++ if (search_vec(p->dynv, dyn, DT_VERSYM))
++ p->versym = laddr(p, *dyn);
++}
++
++static size_t count_syms(struct dso *p)
++{
++ if (p->hashtab) return p->hashtab[1];
++
++ size_t nsym, i;
++ uint32_t *buckets = p->ghashtab + 4 + (p->ghashtab[2]*sizeof(size_t)/4);
++ uint32_t *hashval;
++ for (i = nsym = 0; i < p->ghashtab[0]; i++) {
++ if (buckets[i] > nsym)
++ nsym = buckets[i];
++ }
++ if (nsym) {
++ hashval = buckets + p->ghashtab[0] + (nsym - p->ghashtab[1]);
++ do nsym++;
++ while (!(*hashval++ & 1));
++ }
++ return nsym;
++}
++
++static void *dl_mmap(size_t n)
++{
++ void *p;
++ int prot = PROT_READ|PROT_WRITE, flags = MAP_ANONYMOUS|MAP_PRIVATE;
++#ifdef SYS_mmap2
++ p = (void *)__syscall(SYS_mmap2, 0, n, prot, flags, -1, 0);
++#else
++ p = (void *)__syscall(SYS_mmap, 0, n, prot, flags, -1, 0);
++#endif
++ return p == MAP_FAILED ? 0 : p;
++}
++
++static void makefuncdescs(struct dso *p)
++{
++ static int self_done;
++ size_t nsym = count_syms(p);
++ size_t i, size = nsym * sizeof(*p->funcdescs);
++
++ if (!self_done) {
++ p->funcdescs = dl_mmap(size);
++ self_done = 1;
++ } else {
++ p->funcdescs = malloc(size);
++ }
++ if (!p->funcdescs) {
++ if (!runtime) a_crash();
++ error("Error allocating function descriptors for %s", p->name);
++ longjmp(*rtld_fail, 1);
++ }
++ for (i=0; i<nsym; i++) {
++ if ((p->syms[i].st_info&0xf)==STT_FUNC && p->syms[i].st_shndx) {
++ p->funcdescs[i].addr = laddr(p, p->syms[i].st_value);
++ p->funcdescs[i].got = p->got;
++ } else {
++ p->funcdescs[i].addr = 0;
++ p->funcdescs[i].got = 0;
++ }
++ }
++}
++
++static struct dso *load_library(const char *name, struct dso *needed_by)
++{
++ char buf[2*NAME_MAX+2];
++ const char *pathname;
++ unsigned char *map;
++ struct dso *p, temp_dso = {0};
++ int fd;
++ struct stat st;
++ size_t alloc_size;
++ int n_th = 0;
++ int is_self = 0;
++
++ if (!*name) {
++ errno = EINVAL;
++ return 0;
++ }
++
++ /* Catch and block attempts to reload the implementation itself */
++ if (name[0]=='l' && name[1]=='i' && name[2]=='b') {
++ static const char *rp, reserved[] =
++ "c\0pthread\0rt\0m\0dl\0util\0xnet\0";
++ char *z = strchr(name, '.');
++ if (z) {
++ size_t l = z-name;
++ for (rp=reserved; *rp && strncmp(name+3, rp, l-3); rp+=strlen(rp)+1);
++ if (*rp) {
++ if (ldd_mode) {
++ /* Track which names have been resolved
++ * and only report each one once. */
++ static unsigned reported;
++ unsigned mask = 1U<<(rp-reserved);
++ if (!(reported & mask)) {
++ reported |= mask;
++ dprintf(1, "\t%s => %s (%p)\n",
++ name, ldso.name,
++ ldso.base);
++ }
++ }
++ is_self = 1;
++ }
++ }
++ }
++ if (!strcmp(name, ldso.name)) is_self = 1;
++ if (is_self) {
++ if (!ldso.prev) {
++ tail->next = &ldso;
++ ldso.prev = tail;
++ tail = ldso.next ? ldso.next : &ldso;
++ }
++ return &ldso;
++ }
++ if (strchr(name, '/')) {
++ pathname = name;
++ fd = open(name, O_RDONLY|O_CLOEXEC);
++ } else {
++ /* Search for the name to see if it's already loaded */
++ for (p=head->next; p; p=p->next) {
++ if (p->shortname && !strcmp(p->shortname, name)) {
++ p->refcnt++;
++ return p;
++ }
++ }
++ if (strlen(name) > NAME_MAX) return 0;
++ fd = -1;
++ if (env_path) fd = path_open(name, env_path, buf, sizeof buf);
++ for (p=needed_by; fd == -1 && p; p=p->needed_by) {
++ if (fixup_rpath(p, buf, sizeof buf) < 0)
++ fd = -2; /* Inhibit further search. */
++ if (p->rpath)
++ fd = path_open(name, p->rpath, buf, sizeof buf);
++ }
++ if (fd == -1) {
++ if (!sys_path) {
++ char *prefix = 0;
++ size_t prefix_len;
++ if (ldso.name[0]=='/') {
++ char *s, *t, *z;
++ for (s=t=z=ldso.name; *s; s++)
++ if (*s=='/') z=t, t=s;
++ prefix_len = z-ldso.name;
++ if (prefix_len < PATH_MAX)
++ prefix = ldso.name;
++ }
++ if (!prefix) {
++ prefix = "";
++ prefix_len = 0;
++ }
++ char etc_ldso_path[prefix_len + 1
++ + sizeof "/etc/ld-musl-" LDSO_ARCH ".path"];
++ snprintf(etc_ldso_path, sizeof etc_ldso_path,
++ "%.*s/etc/ld-musl-" LDSO_ARCH ".path",
++ (int)prefix_len, prefix);
++ FILE *f = fopen(etc_ldso_path, "rbe");
++ if (f) {
++ if (getdelim(&sys_path, (size_t[1]){0}, 0, f) <= 0) {
++ free(sys_path);
++ sys_path = "";
++ }
++ fclose(f);
++ } else if (errno != ENOENT) {
++ sys_path = "";
++ }
++ }
++ if (!sys_path) sys_path = "/lib:/usr/local/lib:/usr/lib";
++ fd = path_open(name, sys_path, buf, sizeof buf);
++ }
++ pathname = buf;
++ }
++ if (fd < 0) return 0;
++ if (fstat(fd, &st) < 0) {
++ close(fd);
++ return 0;
++ }
++ for (p=head->next; p; p=p->next) {
++ if (p->dev == st.st_dev && p->ino == st.st_ino) {
++ /* If this library was previously loaded with a
++ * pathname but a search found the same inode,
++ * setup its shortname so it can be found by name. */
++ if (!p->shortname && pathname != name)
++ p->shortname = strrchr(p->name, '/')+1;
++ close(fd);
++ p->refcnt++;
++ return p;
++ }
++ }
++ map = noload ? 0 : map_library(fd, &temp_dso);
++ close(fd);
++ if (!map) return 0;
++
++ /* Allocate storage for the new DSO. When there is TLS, this
++ * storage must include a reservation for all pre-existing
++ * threads to obtain copies of both the new TLS, and an
++ * extended DTV capable of storing an additional slot for
++ * the newly-loaded DSO. */
++ alloc_size = sizeof *p + strlen(pathname) + 1;
++ if (runtime && temp_dso.tls.image) {
++ size_t per_th = temp_dso.tls.size + temp_dso.tls.align
++ + sizeof(void *) * (tls_cnt+3);
++ n_th = libc.threads_minus_1 + 1;
++ if (n_th > SSIZE_MAX / per_th) alloc_size = SIZE_MAX;
++ else alloc_size += n_th * per_th;
++ }
++ p = calloc(1, alloc_size);
++ if (!p) {
++ unmap_library(&temp_dso);
++ return 0;
++ }
++ memcpy(p, &temp_dso, sizeof temp_dso);
++ decode_dyn(p);
++ p->dev = st.st_dev;
++ p->ino = st.st_ino;
++ p->refcnt = 1;
++ p->needed_by = needed_by;
++ p->name = p->buf;
++ strcpy(p->name, pathname);
++ /* Add a shortname only if name arg was not an explicit pathname. */
++ if (pathname != name) p->shortname = strrchr(p->name, '/')+1;
++ if (p->tls.image) {
++ p->tls_id = ++tls_cnt;
++ tls_align = MAXP2(tls_align, p->tls.align);
++#ifdef TLS_ABOVE_TP
++ p->tls.offset = tls_offset + ( (tls_align-1) &
++ -(tls_offset + (uintptr_t)p->tls.image) );
++ tls_offset += p->tls.size;
++#else
++ tls_offset += p->tls.size + p->tls.align - 1;
++ tls_offset -= (tls_offset + (uintptr_t)p->tls.image)
++ & (p->tls.align-1);
++ p->tls.offset = tls_offset;
++#endif
++ p->new_dtv = (void *)(-sizeof(size_t) &
++ (uintptr_t)(p->name+strlen(p->name)+sizeof(size_t)));
++ p->new_tls = (void *)(p->new_dtv + n_th*(tls_cnt+1));
++ if (tls_tail) tls_tail->next = &p->tls;
++ else libc.tls_head = &p->tls;
++ tls_tail = &p->tls;
++ }
++
++ tail->next = p;
++ p->prev = tail;
++ tail = p;
++
++ if (DL_FDPIC) makefuncdescs(p);
++
++ if (ldd_mode) dprintf(1, "\t%s => %s (%p)\n", name, pathname, p->base);
++
++ return p;
++}
++
++static void load_deps(struct dso *p)
++{
++ size_t i, ndeps=0;
++ struct dso ***deps = &p->deps, **tmp, *dep;
++ for (; p; p=p->next) {
++ for (i=0; p->dynv[i]; i+=2) {
++ if (p->dynv[i] != DT_NEEDED) continue;
++ dep = load_library(p->strings + p->dynv[i+1], p);
++ if (!dep) {
++ error("Error loading shared library %s: %m (needed by %s)",
++ p->strings + p->dynv[i+1], p->name);
++ if (runtime) longjmp(*rtld_fail, 1);
++ continue;
++ }
++ if (runtime) {
++ tmp = realloc(*deps, sizeof(*tmp)*(ndeps+2));
++ if (!tmp) longjmp(*rtld_fail, 1);
++ tmp[ndeps++] = dep;
++ tmp[ndeps] = 0;
++ *deps = tmp;
++ }
++ }
++ }
++}
++
++static void load_preload(char *s)
++{
++ int tmp;
++ char *z;
++ for (z=s; *z; s=z) {
++ for ( ; *s && (isspace(*s) || *s==':'); s++);
++ for (z=s; *z && !isspace(*z) && *z!=':'; z++);
++ tmp = *z;
++ *z = 0;
++ load_library(s, 0);
++ *z = tmp;
++ }
++}
++
++static void make_global(struct dso *p)
++{
++ for (; p; p=p->next) p->global = 1;
++}
++
++static void do_mips_relocs(struct dso *p, size_t *got)
++{
++ size_t i, j, rel[2];
++ unsigned char *base = p->base;
++ i=0; search_vec(p->dynv, &i, DT_MIPS_LOCAL_GOTNO);
++ if (p==&ldso) {
++ got += i;
++ } else {
++ while (i--) *got++ += (size_t)base;
++ }
++ j=0; search_vec(p->dynv, &j, DT_MIPS_GOTSYM);
++ i=0; search_vec(p->dynv, &i, DT_MIPS_SYMTABNO);
++ Sym *sym = p->syms + j;
++ rel[0] = (unsigned char *)got - base;
++ for (i-=j; i; i--, sym++, rel[0]+=sizeof(size_t)) {
++ rel[1] = sym-p->syms << 8 | R_MIPS_JUMP_SLOT;
++ do_relocs(p, rel, sizeof rel, 2);
++ }
++}
++
++static void reloc_all(struct dso *p)
++{
++ size_t dyn[DYN_CNT];
++ for (; p; p=p->next) {
++ if (p->relocated) continue;
++ decode_vec(p->dynv, dyn, DYN_CNT);
++ if (NEED_MIPS_GOT_RELOCS)
++ do_mips_relocs(p, laddr(p, dyn[DT_PLTGOT]));
++ do_relocs(p, laddr(p, dyn[DT_JMPREL]), dyn[DT_PLTRELSZ],
++ 2+(dyn[DT_PLTREL]==DT_RELA));
++ do_relocs(p, laddr(p, dyn[DT_REL]), dyn[DT_RELSZ], 2);
++ do_relocs(p, laddr(p, dyn[DT_RELA]), dyn[DT_RELASZ], 3);
++
++ if (head != &ldso && p->relro_start != p->relro_end &&
++ mprotect(laddr(p, p->relro_start), p->relro_end-p->relro_start, PROT_READ)
++ && errno != ENOSYS) {
++ error("Error relocating %s: RELRO protection failed: %m",
++ p->name);
++ if (runtime) longjmp(*rtld_fail, 1);
++ }
++
++ p->relocated = 1;
++ }
++}
++
++static void kernel_mapped_dso(struct dso *p)
++{
++ size_t min_addr = -1, max_addr = 0, cnt;
++ Phdr *ph = p->phdr;
++ for (cnt = p->phnum; cnt--; ph = (void *)((char *)ph + p->phentsize)) {
++ if (ph->p_type == PT_DYNAMIC) {
++ p->dynv = laddr(p, ph->p_vaddr);
++ } else if (ph->p_type == PT_GNU_RELRO) {
++ p->relro_start = ph->p_vaddr & -PAGE_SIZE;
++ p->relro_end = (ph->p_vaddr + ph->p_memsz) & -PAGE_SIZE;
++ }
++ if (ph->p_type != PT_LOAD) continue;
++ if (ph->p_vaddr < min_addr)
++ min_addr = ph->p_vaddr;
++ if (ph->p_vaddr+ph->p_memsz > max_addr)
++ max_addr = ph->p_vaddr+ph->p_memsz;
++ }
++ min_addr &= -PAGE_SIZE;
++ max_addr = (max_addr + PAGE_SIZE-1) & -PAGE_SIZE;
++ p->map = p->base + min_addr;
++ p->map_len = max_addr - min_addr;
++ p->kernel_mapped = 1;
++}
++
++void __libc_exit_fini()
++{
++ struct dso *p;
++ size_t dyn[DYN_CNT];
++ for (p=fini_head; p; p=p->fini_next) {
++ if (!p->constructed) continue;
++ decode_vec(p->dynv, dyn, DYN_CNT);
++ if (dyn[0] & (1<<DT_FINI_ARRAY)) {
++ size_t n = dyn[DT_FINI_ARRAYSZ]/sizeof(size_t);
++ size_t *fn = (size_t *)laddr(p, dyn[DT_FINI_ARRAY])+n;
++ while (n--) ((void (*)(void))*--fn)();
++ }
++#ifndef NO_LEGACY_INITFINI
++ if ((dyn[0] & (1<<DT_FINI)) && dyn[DT_FINI])
++ fpaddr(p, dyn[DT_FINI])();
++#endif
++ }
++}
++
++static void do_init_fini(struct dso *p)
++{
++ size_t dyn[DYN_CNT];
++ int need_locking = libc.threads_minus_1;
++ /* Allow recursive calls that arise when a library calls
++ * dlopen from one of its constructors, but block any
++ * other threads until all ctors have finished. */
++ if (need_locking) pthread_mutex_lock(&init_fini_lock);
++ for (; p; p=p->prev) {
++ if (p->constructed) continue;
++ p->constructed = 1;
++ decode_vec(p->dynv, dyn, DYN_CNT);
++ if (dyn[0] & ((1<<DT_FINI) | (1<<DT_FINI_ARRAY))) {
++ p->fini_next = fini_head;
++ fini_head = p;
++ }
++#ifndef NO_LEGACY_INITFINI
++ if ((dyn[0] & (1<<DT_INIT)) && dyn[DT_INIT])
++ fpaddr(p, dyn[DT_INIT])();
++#endif
++ if (dyn[0] & (1<<DT_INIT_ARRAY)) {
++ size_t n = dyn[DT_INIT_ARRAYSZ]/sizeof(size_t);
++ size_t *fn = laddr(p, dyn[DT_INIT_ARRAY]);
++ while (n--) ((void (*)(void))*fn++)();
++ }
++ if (!need_locking && libc.threads_minus_1) {
++ need_locking = 1;
++ pthread_mutex_lock(&init_fini_lock);
++ }
++ }
++ if (need_locking) pthread_mutex_unlock(&init_fini_lock);
++}
++
++void __libc_start_init(void)
++{
++ do_init_fini(tail);
++}
++
++static void dl_debug_state(void)
++{
++}
++
++weak_alias(dl_debug_state, _dl_debug_state);
++
++void __init_tls(size_t *auxv)
++{
++}
++
++__attribute__((__visibility__("hidden")))
++void *__tls_get_new(size_t *v)
++{
++ pthread_t self = __pthread_self();
++
++ /* Block signals to make accessing new TLS async-signal-safe */
++ sigset_t set;
++ __block_all_sigs(&set);
++ if (v[0]<=(size_t)self->dtv[0]) {
++ __restore_sigs(&set);
++ return (char *)self->dtv[v[0]]+v[1]+DTP_OFFSET;
++ }
++
++ /* This is safe without any locks held because, if the caller
++ * is able to request the Nth entry of the DTV, the DSO list
++ * must be valid at least that far out and it was synchronized
++ * at program startup or by an already-completed call to dlopen. */
++ struct dso *p;
++ for (p=head; p->tls_id != v[0]; p=p->next);
++
++ /* Get new DTV space from new DSO if needed */
++ if (v[0] > (size_t)self->dtv[0]) {
++ void **newdtv = p->new_dtv +
++ (v[0]+1)*a_fetch_add(&p->new_dtv_idx,1);
++ memcpy(newdtv, self->dtv,
++ ((size_t)self->dtv[0]+1) * sizeof(void *));
++ newdtv[0] = (void *)v[0];
++ self->dtv = self->dtv_copy = newdtv;
++ }
++
++ /* Get new TLS memory from all new DSOs up to the requested one */
++ unsigned char *mem;
++ for (p=head; ; p=p->next) {
++ if (!p->tls_id || self->dtv[p->tls_id]) continue;
++ mem = p->new_tls + (p->tls.size + p->tls.align)
++ * a_fetch_add(&p->new_tls_idx,1);
++ mem += ((uintptr_t)p->tls.image - (uintptr_t)mem)
++ & (p->tls.align-1);
++ self->dtv[p->tls_id] = mem;
++ memcpy(mem, p->tls.image, p->tls.len);
++ if (p->tls_id == v[0]) break;
++ }
++ __restore_sigs(&set);
++ return mem + v[1] + DTP_OFFSET;
++}
++
++static void update_tls_size()
++{
++ libc.tls_cnt = tls_cnt;
++ libc.tls_align = tls_align;
++ libc.tls_size = ALIGN(
++ (1+tls_cnt) * sizeof(void *) +
++ tls_offset +
++ sizeof(struct pthread) +
++ tls_align * 2,
++ tls_align);
++}
++
++/* Stage 1 of the dynamic linker is defined in dlstart.c. It calls the
++ * following stage 2 and stage 3 functions via primitive symbolic lookup
++ * since it does not have access to their addresses to begin with. */
++
++/* Stage 2 of the dynamic linker is called after relative relocations
++ * have been processed. It can make function calls to static functions
++ * and access string literals and static data, but cannot use extern
++ * symbols. Its job is to perform symbolic relocations on the dynamic
++ * linker itself, but some of the relocations performed may need to be
++ * replaced later due to copy relocations in the main program. */
++
++__attribute__((__visibility__("hidden")))
++void __dls2(unsigned char *base, size_t *sp)
++{
++ if (DL_FDPIC) {
++ void *p1 = (void *)sp[-2];
++ void *p2 = (void *)sp[-1];
++ if (!p1) {
++ size_t *auxv, aux[AUX_CNT];
++ for (auxv=sp+1+*sp+1; *auxv; auxv++); auxv++;
++ decode_vec(auxv, aux, AUX_CNT);
++ if (aux[AT_BASE]) ldso.base = (void *)aux[AT_BASE];
++ else ldso.base = (void *)(aux[AT_PHDR] & -4096);
++ }
++ app_loadmap = p2 ? p1 : 0;
++ ldso.loadmap = p2 ? p2 : p1;
++ ldso.base = laddr(&ldso, 0);
++ } else {
++ ldso.base = base;
++ }
++ Ehdr *ehdr = (void *)ldso.base;
++ ldso.name = ldso.shortname = "libc.so";
++ ldso.global = 1;
++ ldso.phnum = ehdr->e_phnum;
++ ldso.phdr = laddr(&ldso, ehdr->e_phoff);
++ ldso.phentsize = ehdr->e_phentsize;
++ kernel_mapped_dso(&ldso);
++ decode_dyn(&ldso);
++
++ if (DL_FDPIC) makefuncdescs(&ldso);
++
++ /* Prepare storage for to save clobbered REL addends so they
++ * can be reused in stage 3. There should be very few. If
++ * something goes wrong and there are a huge number, abort
++ * instead of risking stack overflow. */
++ size_t dyn[DYN_CNT];
++ decode_vec(ldso.dynv, dyn, DYN_CNT);
++ size_t *rel = laddr(&ldso, dyn[DT_REL]);
++ size_t rel_size = dyn[DT_RELSZ];
++ size_t symbolic_rel_cnt = 0;
++ apply_addends_to = rel;
++ for (; rel_size; rel+=2, rel_size-=2*sizeof(size_t))
++ if (!IS_RELATIVE(rel[1], ldso.syms)) symbolic_rel_cnt++;
++ if (symbolic_rel_cnt >= ADDEND_LIMIT) a_crash();
++ size_t addends[symbolic_rel_cnt+1];
++ saved_addends = addends;
++
++ head = &ldso;
++ reloc_all(&ldso);
++
++ ldso.relocated = 0;
++
++ /* Call dynamic linker stage-3, __dls3, looking it up
++ * symbolically as a barrier against moving the address
++ * load across the above relocation processing. */
++ struct symdef dls3_def = find_sym(&ldso, "__dls3", 0);
++ if (DL_FDPIC) ((stage3_func)&ldso.funcdescs[dls3_def.sym-ldso.syms])(sp);
++ else ((stage3_func)laddr(&ldso, dls3_def.sym->st_value))(sp);
++}
++
++/* Stage 3 of the dynamic linker is called with the dynamic linker/libc
++ * fully functional. Its job is to load (if not already loaded) and
++ * process dependencies and relocations for the main application and
++ * transfer control to its entry point. */
++
++_Noreturn void __dls3(size_t *sp)
++{
++ static struct dso app, vdso;
++ size_t aux[AUX_CNT], *auxv;
++ size_t i;
++ char *env_preload=0;
++ size_t vdso_base;
++ int argc = *sp;
++ char **argv = (void *)(sp+1);
++ char **argv_orig = argv;
++ char **envp = argv+argc+1;
++
++ /* Find aux vector just past environ[] and use it to initialize
++ * global data that may be needed before we can make syscalls. */
++ __environ = envp;
++ for (i=argc+1; argv[i]; i++);
++ libc.auxv = auxv = (void *)(argv+i+1);
++ decode_vec(auxv, aux, AUX_CNT);
++ __hwcap = aux[AT_HWCAP];
++ libc.page_size = aux[AT_PAGESZ];
++ libc.secure = ((aux[0]&0x7800)!=0x7800 || aux[AT_UID]!=aux[AT_EUID]
++ || aux[AT_GID]!=aux[AT_EGID] || aux[AT_SECURE]);
++
++ /* Setup early thread pointer in builtin_tls for ldso/libc itself to
++ * use during dynamic linking. If possible it will also serve as the
++ * thread pointer at runtime. */
++ libc.tls_size = sizeof builtin_tls;
++ libc.tls_align = tls_align;
++ if (__init_tp(__copy_tls((void *)builtin_tls)) < 0) {
++ a_crash();
++ }
++
++ /* Only trust user/env if kernel says we're not suid/sgid */
++ if (!libc.secure) {
++ env_path = getenv("LD_LIBRARY_PATH");
++ env_preload = getenv("LD_PRELOAD");
++ }
++
++ /* If the main program was already loaded by the kernel,
++ * AT_PHDR will point to some location other than the dynamic
++ * linker's program headers. */
++ if (aux[AT_PHDR] != (size_t)ldso.phdr) {
++ size_t interp_off = 0;
++ size_t tls_image = 0;
++ /* Find load address of the main program, via AT_PHDR vs PT_PHDR. */
++ Phdr *phdr = app.phdr = (void *)aux[AT_PHDR];
++ app.phnum = aux[AT_PHNUM];
++ app.phentsize = aux[AT_PHENT];
++ for (i=aux[AT_PHNUM]; i; i--, phdr=(void *)((char *)phdr + aux[AT_PHENT])) {
++ if (phdr->p_type == PT_PHDR)
++ app.base = (void *)(aux[AT_PHDR] - phdr->p_vaddr);
++ else if (phdr->p_type == PT_INTERP)
++ interp_off = (size_t)phdr->p_vaddr;
++ else if (phdr->p_type == PT_TLS) {
++ tls_image = phdr->p_vaddr;
++ app.tls.len = phdr->p_filesz;
++ app.tls.size = phdr->p_memsz;
++ app.tls.align = phdr->p_align;
++ }
++ }
++ if (DL_FDPIC) app.loadmap = app_loadmap;
++ if (app.tls.size) app.tls.image = laddr(&app, tls_image);
++ if (interp_off) ldso.name = laddr(&app, interp_off);
++ if ((aux[0] & (1UL<<AT_EXECFN))
++ && strncmp((char *)aux[AT_EXECFN], "/proc/", 6))
++ app.name = (char *)aux[AT_EXECFN];
++ else
++ app.name = argv[0];
++ kernel_mapped_dso(&app);
++ } else {
++ int fd;
++ char *ldname = argv[0];
++ size_t l = strlen(ldname);
++ if (l >= 3 && !strcmp(ldname+l-3, "ldd")) ldd_mode = 1;
++ argv++;
++ while (argv[0] && argv[0][0]=='-' && argv[0][1]=='-') {
++ char *opt = argv[0]+2;
++ *argv++ = (void *)-1;
++ if (!*opt) {
++ break;
++ } else if (!memcmp(opt, "list", 5)) {
++ ldd_mode = 1;
++ } else if (!memcmp(opt, "library-path", 12)) {
++ if (opt[12]=='=') env_path = opt+13;
++ else if (opt[12]) *argv = 0;
++ else if (*argv) env_path = *argv++;
++ } else if (!memcmp(opt, "preload", 7)) {
++ if (opt[7]=='=') env_preload = opt+8;
++ else if (opt[7]) *argv = 0;
++ else if (*argv) env_preload = *argv++;
++ } else {
++ argv[0] = 0;
++ }
++ }
++ argv[-1] = (void *)(argc - (argv-argv_orig));
++ if (!argv[0]) {
++ dprintf(2, "musl libc (" LDSO_ARCH ")\n"
++ "Version %s\n"
++ "Dynamic Program Loader\n"
++ "Usage: %s [options] [--] pathname%s\n",
++ __libc_get_version(), ldname,
++ ldd_mode ? "" : " [args]");
++ _exit(1);
++ }
++ fd = open(argv[0], O_RDONLY);
++ if (fd < 0) {
++ dprintf(2, "%s: cannot load %s: %s\n", ldname, argv[0], strerror(errno));
++ _exit(1);
++ }
++ runtime = 1;
++ Ehdr *ehdr = (void *)map_library(fd, &app);
++ if (!ehdr) {
++ dprintf(2, "%s: %s: Not a valid dynamic program\n", ldname, argv[0]);
++ _exit(1);
++ }
++ runtime = 0;
++ close(fd);
++ ldso.name = ldname;
++ app.name = argv[0];
++ aux[AT_ENTRY] = (size_t)laddr(&app, ehdr->e_entry);
++ /* Find the name that would have been used for the dynamic
++ * linker had ldd not taken its place. */
++ if (ldd_mode) {
++ for (i=0; i<app.phnum; i++) {
++ if (app.phdr[i].p_type == PT_INTERP)
++ ldso.name = laddr(&app, app.phdr[i].p_vaddr);
++ }
++ dprintf(1, "\t%s (%p)\n", ldso.name, ldso.base);
++ }
++ }
++ if (app.tls.size) {
++ libc.tls_head = tls_tail = &app.tls;
++ app.tls_id = tls_cnt = 1;
++#ifdef TLS_ABOVE_TP
++ app.tls.offset = 0;
++ tls_offset = app.tls.size
++ + ( -((uintptr_t)app.tls.image + app.tls.size)
++ & (app.tls.align-1) );
++#else
++ tls_offset = app.tls.offset = app.tls.size
++ + ( -((uintptr_t)app.tls.image + app.tls.size)
++ & (app.tls.align-1) );
++#endif
++ tls_align = MAXP2(tls_align, app.tls.align);
++ }
++ app.global = 1;
++ decode_dyn(&app);
++ if (DL_FDPIC) {
++ makefuncdescs(&app);
++ if (!app.loadmap) {
++ app.loadmap = (void *)&app_dummy_loadmap;
++ app.loadmap->nsegs = 1;
++ app.loadmap->segs[0].addr = (size_t)app.map;
++ app.loadmap->segs[0].p_vaddr = (size_t)app.map
++ - (size_t)app.base;
++ app.loadmap->segs[0].p_memsz = app.map_len;
++ }
++ argv[-3] = (void *)app.loadmap;
++ }
++
++ /* Attach to vdso, if provided by the kernel */
++ if (search_vec(auxv, &vdso_base, AT_SYSINFO_EHDR)) {
++ Ehdr *ehdr = (void *)vdso_base;
++ Phdr *phdr = vdso.phdr = (void *)(vdso_base + ehdr->e_phoff);
++ vdso.phnum = ehdr->e_phnum;
++ vdso.phentsize = ehdr->e_phentsize;
++ for (i=ehdr->e_phnum; i; i--, phdr=(void *)((char *)phdr + ehdr->e_phentsize)) {
++ if (phdr->p_type == PT_DYNAMIC)
++ vdso.dynv = (void *)(vdso_base + phdr->p_offset);
++ if (phdr->p_type == PT_LOAD)
++ vdso.base = (void *)(vdso_base - phdr->p_vaddr + phdr->p_offset);
++ }
++ vdso.name = "";
++ vdso.shortname = "linux-gate.so.1";
++ vdso.global = 1;
++ vdso.relocated = 1;
++ decode_dyn(&vdso);
++ vdso.prev = &ldso;
++ ldso.next = &vdso;
++ }
++
++ /* Initial dso chain consists only of the app. */
++ head = tail = &app;
++
++ /* Donate unused parts of app and library mapping to malloc */
++ reclaim_gaps(&app);
++ reclaim_gaps(&ldso);
++
++ /* Load preload/needed libraries, add their symbols to the global
++ * namespace, and perform all remaining relocations. */
++ if (env_preload) load_preload(env_preload);
++ load_deps(&app);
++ make_global(&app);
++
++#ifndef DYNAMIC_IS_RO
++ for (i=0; app.dynv[i]; i+=2)
++ if (app.dynv[i]==DT_DEBUG)
++ app.dynv[i+1] = (size_t)&debug;
++#endif
++
++ /* The main program must be relocated LAST since it may contin
++ * copy relocations which depend on libraries' relocations. */
++ reloc_all(app.next);
++ reloc_all(&app);
++
++ update_tls_size();
++ if (libc.tls_size > sizeof builtin_tls || tls_align > MIN_TLS_ALIGN) {
++ void *initial_tls = calloc(libc.tls_size, 1);
++ if (!initial_tls) {
++ dprintf(2, "%s: Error getting %zu bytes thread-local storage: %m\n",
++ argv[0], libc.tls_size);
++ _exit(127);
++ }
++ if (__init_tp(__copy_tls(initial_tls)) < 0) {
++ a_crash();
++ }
++ } else {
++ size_t tmp_tls_size = libc.tls_size;
++ pthread_t self = __pthread_self();
++ /* Temporarily set the tls size to the full size of
++ * builtin_tls so that __copy_tls will use the same layout
++ * as it did for before. Then check, just to be safe. */
++ libc.tls_size = sizeof builtin_tls;
++ if (__copy_tls((void*)builtin_tls) != self) a_crash();
++ libc.tls_size = tmp_tls_size;
++ }
++ static_tls_cnt = tls_cnt;
++
++ if (ldso_fail) _exit(127);
++ if (ldd_mode) _exit(0);
++
++ /* Switch to runtime mode: any further failures in the dynamic
++ * linker are a reportable failure rather than a fatal startup
++ * error. */
++ runtime = 1;
++
++ debug.ver = 1;
++ debug.bp = dl_debug_state;
++ debug.head = head;
++ debug.base = ldso.base;
++ debug.state = 0;
++ _dl_debug_state();
++
++ errno = 0;
++
++ CRTJMP((void *)aux[AT_ENTRY], argv-1);
++ for(;;);
++}
++
++void *dlopen(const char *file, int mode)
++{
++ struct dso *volatile p, *orig_tail, *next;
++ struct tls_module *orig_tls_tail;
++ size_t orig_tls_cnt, orig_tls_offset, orig_tls_align;
++ size_t i;
++ int cs;
++ jmp_buf jb;
++
++ if (!file) return head;
++
++ pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
++ pthread_rwlock_wrlock(&lock);
++ __inhibit_ptc();
++
++ p = 0;
++ orig_tls_tail = tls_tail;
++ orig_tls_cnt = tls_cnt;
++ orig_tls_offset = tls_offset;
++ orig_tls_align = tls_align;
++ orig_tail = tail;
++ noload = mode & RTLD_NOLOAD;
++
++ rtld_fail = &jb;
++ if (setjmp(*rtld_fail)) {
++ /* Clean up anything new that was (partially) loaded */
++ if (p && p->deps) for (i=0; p->deps[i]; i++)
++ if (p->deps[i]->global < 0)
++ p->deps[i]->global = 0;
++ for (p=orig_tail->next; p; p=next) {
++ next = p->next;
++ while (p->td_index) {
++ void *tmp = p->td_index->next;
++ free(p->td_index);
++ p->td_index = tmp;
++ }
++ free(p->funcdescs);
++ if (p->rpath != p->rpath_orig)
++ free(p->rpath);
++ free(p->deps);
++ unmap_library(p);
++ free(p);
++ }
++ if (!orig_tls_tail) libc.tls_head = 0;
++ tls_tail = orig_tls_tail;
++ tls_cnt = orig_tls_cnt;
++ tls_offset = orig_tls_offset;
++ tls_align = orig_tls_align;
++ tail = orig_tail;
++ tail->next = 0;
++ p = 0;
++ goto end;
++ } else p = load_library(file, head);
++
++ if (!p) {
++ error(noload ?
++ "Library %s is not already loaded" :
++ "Error loading shared library %s: %m",
++ file);
++ goto end;
++ }
++
++ /* First load handling */
++ if (!p->deps) {
++ load_deps(p);
++ if (p->deps) for (i=0; p->deps[i]; i++)
++ if (!p->deps[i]->global)
++ p->deps[i]->global = -1;
++ if (!p->global) p->global = -1;
++ reloc_all(p);
++ if (p->deps) for (i=0; p->deps[i]; i++)
++ if (p->deps[i]->global < 0)
++ p->deps[i]->global = 0;
++ if (p->global < 0) p->global = 0;
++ }
++
++ if (mode & RTLD_GLOBAL) {
++ if (p->deps) for (i=0; p->deps[i]; i++)
++ p->deps[i]->global = 1;
++ p->global = 1;
++ }
++
++ update_tls_size();
++ _dl_debug_state();
++ orig_tail = tail;
++end:
++ __release_ptc();
++ if (p) gencnt++;
++ pthread_rwlock_unlock(&lock);
++ if (p) do_init_fini(orig_tail);
++ pthread_setcancelstate(cs, 0);
++ return p;
++}
++
++__attribute__((__visibility__("hidden")))
++int __dl_invalid_handle(void *h)
++{
++ struct dso *p;
++ for (p=head; p; p=p->next) if (h==p) return 0;
++ error("Invalid library handle %p", (void *)h);
++ return 1;
++}
++
++static void *addr2dso(size_t a)
++{
++ struct dso *p;
++ size_t i;
++ if (DL_FDPIC) for (p=head; p; p=p->next) {
++ i = count_syms(p);
++ if (a-(size_t)p->funcdescs < i*sizeof(*p->funcdescs))
++ return p;
++ }
++ for (p=head; p; p=p->next) {
++ if (DL_FDPIC && p->loadmap) {
++ for (i=0; i<p->loadmap->nsegs; i++) {
++ if (a-p->loadmap->segs[i].p_vaddr
++ < p->loadmap->segs[i].p_memsz)
++ return p;
++ }
++ } else {
++ if (a-(size_t)p->map < p->map_len)
++ return p;
++ }
++ }
++ return 0;
++}
++
++void *__tls_get_addr(size_t *);
++
++static void *do_dlsym(struct dso *p, const char *s, void *ra)
++{
++ size_t i;
++ uint32_t h = 0, gh = 0, *ght;
++ Sym *sym;
++ if (p == head || p == RTLD_DEFAULT || p == RTLD_NEXT) {
++ if (p == RTLD_DEFAULT) {
++ p = head;
++ } else if (p == RTLD_NEXT) {
++ p = addr2dso((size_t)ra);
++ if (!p) p=head;
++ p = p->next;
++ }
++ struct symdef def = find_sym(p, s, 0);
++ if (!def.sym) goto failed;
++ if ((def.sym->st_info&0xf) == STT_TLS)
++ return __tls_get_addr((size_t []){def.dso->tls_id, def.sym->st_value});
++ if (DL_FDPIC && (def.sym->st_info&0xf) == STT_FUNC)
++ return def.dso->funcdescs + (def.sym - def.dso->syms);
++ return laddr(def.dso, def.sym->st_value);
++ }
++ if (__dl_invalid_handle(p))
++ return 0;
++ if ((ght = p->ghashtab)) {
++ gh = gnu_hash(s);
++ sym = gnu_lookup(gh, ght, p, s);
++ } else {
++ h = sysv_hash(s);
++ sym = sysv_lookup(s, h, p);
++ }
++ if (sym && (sym->st_info&0xf) == STT_TLS)
++ return __tls_get_addr((size_t []){p->tls_id, sym->st_value});
++ if (DL_FDPIC && sym && sym->st_shndx && (sym->st_info&0xf) == STT_FUNC)
++ return p->funcdescs + (sym - p->syms);
++ if (sym && sym->st_value && (1<<(sym->st_info&0xf) & OK_TYPES))
++ return laddr(p, sym->st_value);
++ if (p->deps) for (i=0; p->deps[i]; i++) {
++ if ((ght = p->deps[i]->ghashtab)) {
++ if (!gh) gh = gnu_hash(s);
++ sym = gnu_lookup(gh, ght, p->deps[i], s);
++ } else {
++ if (!h) h = sysv_hash(s);
++ sym = sysv_lookup(s, h, p->deps[i]);
++ }
++ if (sym && (sym->st_info&0xf) == STT_TLS)
++ return __tls_get_addr((size_t []){p->deps[i]->tls_id, sym->st_value});
++ if (DL_FDPIC && sym && sym->st_shndx && (sym->st_info&0xf) == STT_FUNC)
++ return p->deps[i]->funcdescs + (sym - p->deps[i]->syms);
++ if (sym && sym->st_value && (1<<(sym->st_info&0xf) & OK_TYPES))
++ return laddr(p->deps[i], sym->st_value);
++ }
++failed:
++ error("Symbol not found: %s", s);
++ return 0;
++}
++
++int dladdr(const void *addr, Dl_info *info)
++{
++ struct dso *p;
++ Sym *sym, *bestsym;
++ uint32_t nsym;
++ char *strings;
++ void *best = 0;
++
++ pthread_rwlock_rdlock(&lock);
++ p = addr2dso((size_t)addr);
++ pthread_rwlock_unlock(&lock);
++
++ if (!p) return 0;
++
++ sym = p->syms;
++ strings = p->strings;
++ nsym = count_syms(p);
++
++ if (DL_FDPIC) {
++ size_t idx = ((size_t)addr-(size_t)p->funcdescs)
++ / sizeof(*p->funcdescs);
++ if (idx < nsym && (sym[idx].st_info&0xf) == STT_FUNC) {
++ best = p->funcdescs + idx;
++ bestsym = sym + idx;
++ }
++ }
++
++ if (!best) for (; nsym; nsym--, sym++) {
++ if (sym->st_value
++ && (1<<(sym->st_info&0xf) & OK_TYPES)
++ && (1<<(sym->st_info>>4) & OK_BINDS)) {
++ void *symaddr = laddr(p, sym->st_value);
++ if (symaddr > addr || symaddr < best)
++ continue;
++ best = symaddr;
++ bestsym = sym;
++ if (addr == symaddr)
++ break;
++ }
++ }
++
++ if (!best) return 0;
++
++ if (DL_FDPIC && (bestsym->st_info&0xf) == STT_FUNC)
++ best = p->funcdescs + (bestsym - p->syms);
++
++ info->dli_fname = p->name;
++ info->dli_fbase = p->base;
++ info->dli_sname = strings + bestsym->st_name;
++ info->dli_saddr = best;
++
++ return 1;
++}
++
++__attribute__((__visibility__("hidden")))
++void *__dlsym(void *restrict p, const char *restrict s, void *restrict ra)
++{
++ void *res;
++ pthread_rwlock_rdlock(&lock);
++ res = do_dlsym(p, s, ra);
++ pthread_rwlock_unlock(&lock);
++ return res;
++}
++
++int dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void *data), void *data)
++{
++ struct dso *current;
++ struct dl_phdr_info info;
++ int ret = 0;
++ for(current = head; current;) {
++ info.dlpi_addr = (uintptr_t)current->base;
++ info.dlpi_name = current->name;
++ info.dlpi_phdr = current->phdr;
++ info.dlpi_phnum = current->phnum;
++ info.dlpi_adds = gencnt;
++ info.dlpi_subs = 0;
++ info.dlpi_tls_modid = current->tls_id;
++ info.dlpi_tls_data = current->tls.image;
++
++ ret = (callback)(&info, sizeof (info), data);
++
++ if (ret != 0) break;
++
++ pthread_rwlock_rdlock(&lock);
++ current = current->next;
++ pthread_rwlock_unlock(&lock);
++ }
++ return ret;
++}
++
++__attribute__((__visibility__("hidden")))
++void __dl_vseterr(const char *, va_list);
++
++static void error(const char *fmt, ...)
++{
++ va_list ap;
++ va_start(ap, fmt);
++ if (!runtime) {
++ vdprintf(2, fmt, ap);
++ dprintf(2, "\n");
++ ldso_fail = 1;
++ va_end(ap);
++ return;
++ }
++ __dl_vseterr(fmt, ap);
++ va_end(ap);
++}
+--- a/src/env/__init_tls.c
++++ b/src/env/__init_tls.c
+@@ -8,9 +8,6 @@
+ #include "atomic.h"
+ #include "syscall.h"
+
+-#ifndef SHARED
+-static
+-#endif
+ int __init_tp(void *p)
+ {
+ pthread_t td = p;
+@@ -24,8 +21,6 @@ int __init_tp(void *p)
+ return 0;
+ }
+
+-#ifndef SHARED
+-
+ static struct builtin_tls {
+ char c;
+ struct pthread pt;
+@@ -33,33 +28,40 @@ static struct builtin_tls {
+ } builtin_tls[1];
+ #define MIN_TLS_ALIGN offsetof(struct builtin_tls, pt)
+
+-struct tls_image {
+- void *image;
+- size_t len, size, align;
+-} __static_tls;
+-
+-#define T __static_tls
++static struct tls_module main_tls;
+
+ void *__copy_tls(unsigned char *mem)
+ {
+ pthread_t td;
+- if (!T.image) return mem;
+- void **dtv = (void *)mem;
+- dtv[0] = (void *)1;
++ struct tls_module *p;
++ size_t i;
++ void **dtv;
++
+ #ifdef TLS_ABOVE_TP
+- mem += sizeof(void *) * 2;
+- mem += -((uintptr_t)mem + sizeof(struct pthread)) & (T.align-1);
++ dtv = (void **)(mem + libc.tls_size) - (libc.tls_cnt + 1);
++
++ mem += -((uintptr_t)mem + sizeof(struct pthread)) & (libc.tls_align-1);
+ td = (pthread_t)mem;
+ mem += sizeof(struct pthread);
++
++ for (i=1, p=libc.tls_head; p; i++, p=p->next) {
++ dtv[i] = mem + p->offset;
++ memcpy(dtv[i], p->image, p->len);
++ }
+ #else
++ dtv = (void **)mem;
++
+ mem += libc.tls_size - sizeof(struct pthread);
+- mem -= (uintptr_t)mem & (T.align-1);
++ mem -= (uintptr_t)mem & (libc.tls_align-1);
+ td = (pthread_t)mem;
+- mem -= T.size;
++
++ for (i=1, p=libc.tls_head; p; i++, p=p->next) {
++ dtv[i] = mem - p->offset;
++ memcpy(dtv[i], p->image, p->len);
++ }
+ #endif
++ dtv[0] = (void *)libc.tls_cnt;
+ td->dtv = td->dtv_copy = dtv;
+- dtv[1] = mem;
+- memcpy(mem, T.image, T.len);
+ return td;
+ }
+
+@@ -69,7 +71,7 @@ typedef Elf32_Phdr Phdr;
+ typedef Elf64_Phdr Phdr;
+ #endif
+
+-void __init_tls(size_t *aux)
++static void static_init_tls(size_t *aux)
+ {
+ unsigned char *p;
+ size_t n;
+@@ -86,16 +88,24 @@ void __init_tls(size_t *aux)
+ }
+
+ if (tls_phdr) {
+- T.image = (void *)(base + tls_phdr->p_vaddr);
+- T.len = tls_phdr->p_filesz;
+- T.size = tls_phdr->p_memsz;
+- T.align = tls_phdr->p_align;
++ main_tls.image = (void *)(base + tls_phdr->p_vaddr);
++ main_tls.len = tls_phdr->p_filesz;
++ main_tls.size = tls_phdr->p_memsz;
++ main_tls.align = tls_phdr->p_align;
++ libc.tls_cnt = 1;
++ libc.tls_head = &main_tls;
+ }
+
+- T.size += (-T.size - (uintptr_t)T.image) & (T.align-1);
+- if (T.align < MIN_TLS_ALIGN) T.align = MIN_TLS_ALIGN;
++ main_tls.size += (-main_tls.size - (uintptr_t)main_tls.image)
++ & (main_tls.align-1);
++ if (main_tls.align < MIN_TLS_ALIGN) main_tls.align = MIN_TLS_ALIGN;
++#ifndef TLS_ABOVE_TP
++ main_tls.offset = main_tls.size;
++#endif
+
+- libc.tls_size = 2*sizeof(void *)+T.size+T.align+sizeof(struct pthread)
++ libc.tls_align = main_tls.align;
++ libc.tls_size = 2*sizeof(void *) + sizeof(struct pthread)
++ + main_tls.size + main_tls.align
+ + MIN_TLS_ALIGN-1 & -MIN_TLS_ALIGN;
+
+ if (libc.tls_size > sizeof builtin_tls) {
+@@ -117,6 +127,5 @@ void __init_tls(size_t *aux)
+ if (__init_tp(__copy_tls(mem)) < 0)
+ a_crash();
+ }
+-#else
+-void __init_tls(size_t *auxv) { }
+-#endif
++
++weak_alias(static_init_tls, __init_tls);
+--- a/src/env/__libc_start_main.c
++++ b/src/env/__libc_start_main.c
+@@ -8,21 +8,17 @@
+
+ void __init_tls(size_t *);
+
+-#ifndef SHARED
+-static void dummy() {}
++static void dummy(void) {}
+ weak_alias(dummy, _init);
+-extern void (*const __init_array_start)() __attribute__((weak));
+-extern void (*const __init_array_end)() __attribute__((weak));
+-#endif
++
++__attribute__((__weak__, __visibility__("hidden")))
++extern void (*const __init_array_start)(void), (*const __init_array_end)(void);
+
+ static void dummy1(void *p) {}
+ weak_alias(dummy1, __init_ssp);
+
+ #define AUX_CNT 38
+
+-#ifndef SHARED
+-static
+-#endif
+ void __init_libc(char **envp, char *pn)
+ {
+ size_t i, *auxv, aux[AUX_CNT] = { 0 };
+@@ -57,20 +53,22 @@ void __init_libc(char **envp, char *pn)
+ libc.secure = 1;
+ }
+
+-int __libc_start_main(int (*main)(int,char **,char **), int argc, char **argv)
++static void libc_start_init(void)
+ {
+- char **envp = argv+argc+1;
+-
+-#ifndef SHARED
+- __init_libc(envp, argv[0]);
+ _init();
+ uintptr_t a = (uintptr_t)&__init_array_start;
+ for (; a<(uintptr_t)&__init_array_end; a+=sizeof(void(*)()))
+ (*(void (**)())a)();
+-#else
+- void __libc_start_init(void);
++}
++
++weak_alias(libc_start_init, __libc_start_init);
++
++int __libc_start_main(int (*main)(int,char **,char **), int argc, char **argv)
++{
++ char **envp = argv+argc+1;
++
++ __init_libc(envp, argv[0]);
+ __libc_start_init();
+-#endif
+
+ /* Pass control to the application */
+ exit(main(argc, argv, envp));
+--- a/src/env/__reset_tls.c
++++ b/src/env/__reset_tls.c
+@@ -1,21 +1,16 @@
+-#ifndef SHARED
+-
+ #include <string.h>
+ #include "pthread_impl.h"
+-
+-extern struct tls_image {
+- void *image;
+- size_t len, size, align;
+-} __static_tls;
+-
+-#define T __static_tls
++#include "libc.h"
+
+ void __reset_tls()
+ {
+- if (!T.size) return;
+ pthread_t self = __pthread_self();
+- memcpy(self->dtv[1], T.image, T.len);
+- memset((char *)self->dtv[1]+T.len, 0, T.size-T.len);
++ struct tls_module *p;
++ size_t i, n = (size_t)self->dtv[0];
++ if (n) for (p=libc.tls_head, i=1; i<=n; i++, p=p->next) {
++ if (!self->dtv[i]) continue;
++ memcpy(self->dtv[i], p->image, p->len);
++ memset((char *)self->dtv[i]+p->len, 0,
++ p->size - p->len);
++ }
+ }
+-
+-#endif
+--- a/src/env/__stack_chk_fail.c
++++ b/src/env/__stack_chk_fail.c
+@@ -17,16 +17,7 @@ void __stack_chk_fail(void)
+ a_crash();
+ }
+
+-#ifdef SHARED
+-
+ __attribute__((__visibility__("hidden")))
+-void __stack_chk_fail_local(void)
+-{
+- a_crash();
+-}
+-
+-#else
++void __stack_chk_fail_local(void);
+
+ weak_alias(__stack_chk_fail, __stack_chk_fail_local);
+-
+-#endif
+--- /dev/null
++++ b/src/exit/arm/__aeabi_atexit.c
+@@ -0,0 +1,6 @@
++int __cxa_atexit(void (*func)(void *), void *arg, void *dso);
++
++int __aeabi_atexit (void *obj, void (*func) (void *), void *d)
++{
++ return __cxa_atexit (func, obj, d);
++}
+--- a/src/exit/exit.c
++++ b/src/exit/exit.c
+@@ -10,25 +10,25 @@ static void dummy()
+ * as a consequence of linking either __toread.c or __towrite.c. */
+ weak_alias(dummy, __funcs_on_exit);
+ weak_alias(dummy, __stdio_exit);
+-
+-#ifndef SHARED
+ weak_alias(dummy, _fini);
+-extern void (*const __fini_array_start)() __attribute__((weak));
+-extern void (*const __fini_array_end)() __attribute__((weak));
+-#endif
+
+-_Noreturn void exit(int code)
+-{
+- __funcs_on_exit();
++__attribute__((__weak__, __visibility__("hidden")))
++extern void (*const __fini_array_start)(void), (*const __fini_array_end)(void);
+
+-#ifndef SHARED
++static void libc_exit_fini(void)
++{
+ uintptr_t a = (uintptr_t)&__fini_array_end;
+ for (; a>(uintptr_t)&__fini_array_start; a-=sizeof(void(*)()))
+ (*(void (**)())(a-sizeof(void(*)())))();
+ _fini();
+-#endif
++}
+
+- __stdio_exit();
++weak_alias(libc_exit_fini, __libc_exit_fini);
+
++_Noreturn void exit(int code)
++{
++ __funcs_on_exit();
++ __libc_exit_fini();
++ __stdio_exit();
+ _Exit(code);
+ }
+--- /dev/null
++++ b/src/fenv/arm/fenv-hf.S
+@@ -0,0 +1,69 @@
++#if __ARM_PCS_VFP
++
++.syntax unified
++.fpu vfp
++
++.global fegetround
++.type fegetround,%function
++fegetround:
++ fmrx r0, fpscr
++ and r0, r0, #0xc00000
++ bx lr
++
++.global __fesetround
++.type __fesetround,%function
++__fesetround:
++ fmrx r3, fpscr
++ bic r3, r3, #0xc00000
++ orr r3, r3, r0
++ fmxr fpscr, r3
++ mov r0, #0
++ bx lr
++
++.global fetestexcept
++.type fetestexcept,%function
++fetestexcept:
++ and r0, r0, #0x1f
++ fmrx r3, fpscr
++ and r0, r0, r3
++ bx lr
++
++.global feclearexcept
++.type feclearexcept,%function
++feclearexcept:
++ and r0, r0, #0x1f
++ fmrx r3, fpscr
++ bic r3, r3, r0
++ fmxr fpscr, r3
++ mov r0, #0
++ bx lr
++
++.global feraiseexcept
++.type feraiseexcept,%function
++feraiseexcept:
++ and r0, r0, #0x1f
++ fmrx r3, fpscr
++ orr r3, r3, r0
++ fmxr fpscr, r3
++ mov r0, #0
++ bx lr
++
++.global fegetenv
++.type fegetenv,%function
++fegetenv:
++ fmrx r3, fpscr
++ str r3, [r0]
++ mov r0, #0
++ bx lr
++
++.global fesetenv
++.type fesetenv,%function
++fesetenv:
++ cmn r0, #1
++ moveq r3, #0
++ ldrne r3, [r0]
++ fmxr fpscr, r3
++ mov r0, #0
++ bx lr
++
++#endif
+--- /dev/null
++++ b/src/fenv/arm/fenv.c
+@@ -0,0 +1,3 @@
++#if !__ARM_PCS_VFP
++#include "../fenv.c"
++#endif
+--- a/src/fenv/armebhf/fenv.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../armhf/fenv.s
+--- a/src/fenv/armhf/fenv.s
++++ /dev/null
+@@ -1,64 +0,0 @@
+-.fpu vfp
+-
+-.global fegetround
+-.type fegetround,%function
+-fegetround:
+- mrc p10, 7, r0, cr1, cr0, 0
+- and r0, r0, #0xc00000
+- bx lr
+-
+-.global __fesetround
+-.type __fesetround,%function
+-__fesetround:
+- mrc p10, 7, r3, cr1, cr0, 0
+- bic r3, r3, #0xc00000
+- orr r3, r3, r0
+- mcr p10, 7, r3, cr1, cr0, 0
+- mov r0, #0
+- bx lr
+-
+-.global fetestexcept
+-.type fetestexcept,%function
+-fetestexcept:
+- and r0, r0, #0x1f
+- mrc p10, 7, r3, cr1, cr0, 0
+- and r0, r0, r3
+- bx lr
+-
+-.global feclearexcept
+-.type feclearexcept,%function
+-feclearexcept:
+- and r0, r0, #0x1f
+- mrc p10, 7, r3, cr1, cr0, 0
+- bic r3, r3, r0
+- mcr p10, 7, r3, cr1, cr0, 0
+- mov r0, #0
+- bx lr
+-
+-.global feraiseexcept
+-.type feraiseexcept,%function
+-feraiseexcept:
+- and r0, r0, #0x1f
+- mrc p10, 7, r3, cr1, cr0, 0
+- orr r3, r3, r0
+- mcr p10, 7, r3, cr1, cr0, 0
+- mov r0, #0
+- bx lr
+-
+-.global fegetenv
+-.type fegetenv,%function
+-fegetenv:
+- mrc p10, 7, r3, cr1, cr0, 0
+- str r3, [r0]
+- mov r0, #0
+- bx lr
+-
+-.global fesetenv
+-.type fesetenv,%function
+-fesetenv:
+- cmn r0, #1
+- moveq r3, #0
+- ldrne r3, [r0]
+- mcr p10, 7, r3, cr1, cr0, 0
+- mov r0, #0
+- bx lr
+--- a/src/fenv/armhf/fenv.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-fenv.s
+--- a/src/fenv/mips-sf/fenv.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../fenv.c
+--- /dev/null
++++ b/src/fenv/mips/fenv-sf.c
+@@ -0,0 +1,3 @@
++#ifdef __mips_soft_float
++#include "../fenv.c"
++#endif
+--- /dev/null
++++ b/src/fenv/mips/fenv.S
+@@ -0,0 +1,71 @@
++#ifndef __mips_soft_float
++
++.set noreorder
++
++.global feclearexcept
++.type feclearexcept,@function
++feclearexcept:
++ and $4, $4, 0x7c
++ cfc1 $5, $31
++ or $5, $5, $4
++ xor $5, $5, $4
++ ctc1 $5, $31
++ jr $ra
++ li $2, 0
++
++.global feraiseexcept
++.type feraiseexcept,@function
++feraiseexcept:
++ and $4, $4, 0x7c
++ cfc1 $5, $31
++ or $5, $5, $4
++ ctc1 $5, $31
++ jr $ra
++ li $2, 0
++
++.global fetestexcept
++.type fetestexcept,@function
++fetestexcept:
++ and $4, $4, 0x7c
++ cfc1 $2, $31
++ jr $ra
++ and $2, $2, $4
++
++.global fegetround
++.type fegetround,@function
++fegetround:
++ cfc1 $2, $31
++ jr $ra
++ andi $2, $2, 3
++
++.global __fesetround
++.type __fesetround,@function
++__fesetround:
++ cfc1 $5, $31
++ li $6, -4
++ and $5, $5, $6
++ or $5, $5, $4
++ ctc1 $5, $31
++ jr $ra
++ li $2, 0
++
++.global fegetenv
++.type fegetenv,@function
++fegetenv:
++ cfc1 $5, $31
++ sw $5, 0($4)
++ jr $ra
++ li $2, 0
++
++.global fesetenv
++.type fesetenv,@function
++fesetenv:
++ addiu $5, $4, 1
++ beq $5, $0, 1f
++ nop
++ lw $5, 0($4)
++1: ctc1 $5, $31
++ jr $ra
++ li $2, 0
++
++#endif
+--- a/src/fenv/mips/fenv.s
++++ /dev/null
+@@ -1,67 +0,0 @@
+-.set noreorder
+-
+-.global feclearexcept
+-.type feclearexcept,@function
+-feclearexcept:
+- and $4, $4, 0x7c
+- cfc1 $5, $31
+- or $5, $5, $4
+- xor $5, $5, $4
+- ctc1 $5, $31
+- jr $ra
+- li $2, 0
+-
+-.global feraiseexcept
+-.type feraiseexcept,@function
+-feraiseexcept:
+- and $4, $4, 0x7c
+- cfc1 $5, $31
+- or $5, $5, $4
+- ctc1 $5, $31
+- jr $ra
+- li $2, 0
+-
+-.global fetestexcept
+-.type fetestexcept,@function
+-fetestexcept:
+- and $4, $4, 0x7c
+- cfc1 $2, $31
+- jr $ra
+- and $2, $2, $4
+-
+-.global fegetround
+-.type fegetround,@function
+-fegetround:
+- cfc1 $2, $31
+- jr $ra
+- andi $2, $2, 3
+-
+-.global __fesetround
+-.type __fesetround,@function
+-__fesetround:
+- cfc1 $5, $31
+- li $6, -4
+- and $5, $5, $6
+- or $5, $5, $4
+- ctc1 $5, $31
+- jr $ra
+- li $2, 0
+-
+-.global fegetenv
+-.type fegetenv,@function
+-fegetenv:
+- cfc1 $5, $31
+- sw $5, 0($4)
+- jr $ra
+- li $2, 0
+-
+-.global fesetenv
+-.type fesetenv,@function
+-fesetenv:
+- addiu $5, $4, 1
+- beq $5, $0, 1f
+- nop
+- lw $5, 0($4)
+-1: ctc1 $5, $31
+- jr $ra
+- li $2, 0
+--- a/src/fenv/mipsel-sf/fenv.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../fenv.c
+--- a/src/fenv/sh-nofpu/fenv.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../fenv.c
+--- /dev/null
++++ b/src/fenv/sh/fenv-nofpu.c
+@@ -0,0 +1,3 @@
++#if !__SH_FPU_ANY__ && !__SH4__
++#include "../fenv.c"
++#endif
+--- /dev/null
++++ b/src/fenv/sh/fenv.S
+@@ -0,0 +1,78 @@
++#if __SH_FPU_ANY__ || __SH4__
++
++.global fegetround
++.type fegetround, @function
++fegetround:
++ sts fpscr, r0
++ rts
++ and #3, r0
++
++.global __fesetround
++.type __fesetround, @function
++__fesetround:
++ sts fpscr, r0
++ or r4, r0
++ lds r0, fpscr
++ rts
++ mov #0, r0
++
++.global fetestexcept
++.type fetestexcept, @function
++fetestexcept:
++ sts fpscr, r0
++ and r4, r0
++ rts
++ and #0x7c, r0
++
++.global feclearexcept
++.type feclearexcept, @function
++feclearexcept:
++ mov r4, r0
++ and #0x7c, r0
++ not r0, r4
++ sts fpscr, r0
++ and r4, r0
++ lds r0, fpscr
++ rts
++ mov #0, r0
++
++.global feraiseexcept
++.type feraiseexcept, @function
++feraiseexcept:
++ mov r4, r0
++ and #0x7c, r0
++ sts fpscr, r4
++ or r4, r0
++ lds r0, fpscr
++ rts
++ mov #0, r0
++
++.global fegetenv
++.type fegetenv, @function
++fegetenv:
++ sts fpscr, r0
++ mov.l r0, @r4
++ rts
++ mov #0, r0
++
++.global fesetenv
++.type fesetenv, @function
++fesetenv:
++ mov r4, r0
++ cmp/eq #-1, r0
++ bf 1f
++
++ ! the default environment is complicated by the fact that we need to
++ ! preserve the current precision bit, which we do not know a priori
++ sts fpscr, r0
++ mov #8, r1
++ swap.w r1, r1
++ bra 2f
++ and r1, r0
++
++1: mov.l @r4, r0 ! non-default environment
++2: lds r0, fpscr
++ rts
++ mov #0, r0
++
++#endif
+--- a/src/fenv/sh/fenv.s
++++ /dev/null
+@@ -1,74 +0,0 @@
+-.global fegetround
+-.type fegetround, @function
+-fegetround:
+- sts fpscr, r0
+- rts
+- and #3, r0
+-
+-.global __fesetround
+-.type __fesetround, @function
+-__fesetround:
+- sts fpscr, r0
+- or r4, r0
+- lds r0, fpscr
+- rts
+- mov #0, r0
+-
+-.global fetestexcept
+-.type fetestexcept, @function
+-fetestexcept:
+- sts fpscr, r0
+- and r4, r0
+- rts
+- and #0x7c, r0
+-
+-.global feclearexcept
+-.type feclearexcept, @function
+-feclearexcept:
+- mov r4, r0
+- and #0x7c, r0
+- not r0, r4
+- sts fpscr, r0
+- and r4, r0
+- lds r0, fpscr
+- rts
+- mov #0, r0
+-
+-.global feraiseexcept
+-.type feraiseexcept, @function
+-feraiseexcept:
+- mov r4, r0
+- and #0x7c, r0
+- sts fpscr, r4
+- or r4, r0
+- lds r0, fpscr
+- rts
+- mov #0, r0
+-
+-.global fegetenv
+-.type fegetenv, @function
+-fegetenv:
+- sts fpscr, r0
+- mov.l r0, @r4
+- rts
+- mov #0, r0
+-
+-.global fesetenv
+-.type fesetenv, @function
+-fesetenv:
+- mov r4, r0
+- cmp/eq #-1, r0
+- bf 1f
+-
+- ! the default environment is complicated by the fact that we need to
+- ! preserve the current precision bit, which we do not know a priori
+- sts fpscr, r0
+- mov #8, r1
+- swap.w r1, r1
+- bra 2f
+- and r1, r0
+-
+-1: mov.l @r4, r0 ! non-default environment
+-2: lds r0, fpscr
+- rts
+- mov #0, r0
+--- a/src/fenv/sheb-nofpu/fenv.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../fenv.c
+--- a/src/internal/arm/syscall.s
++++ b/src/internal/arm/syscall.s
+@@ -1,3 +1,4 @@
++.syntax unified
+ .global __syscall
+ .hidden __syscall
+ .type __syscall,%function
+@@ -11,6 +12,4 @@ __syscall:
+ ldmfd ip,{r3,r4,r5,r6}
+ svc 0
+ ldmfd sp!,{r4,r5,r6,r7}
+- tst lr,#1
+- moveq pc,lr
+ bx lr
+--- /dev/null
++++ b/src/internal/atomic.h
+@@ -0,0 +1,275 @@
++#ifndef _ATOMIC_H
++#define _ATOMIC_H
++
++#include <stdint.h>
++
++#include "atomic_arch.h"
++
++#ifdef a_ll
++
++#ifndef a_pre_llsc
++#define a_pre_llsc()
++#endif
++
++#ifndef a_post_llsc
++#define a_post_llsc()
++#endif
++
++#ifndef a_cas
++#define a_cas a_cas
++static inline int a_cas(volatile int *p, int t, int s)
++{
++ int old;
++ a_pre_llsc();
++ do old = a_ll(p);
++ while (old==t && !a_sc(p, s));
++ a_post_llsc();
++ return old;
++}
++#endif
++
++#ifndef a_swap
++#define a_swap a_swap
++static inline int a_swap(volatile int *p, int v)
++{
++ int old;
++ a_pre_llsc();
++ do old = a_ll(p);
++ while (!a_sc(p, v));
++ a_post_llsc();
++ return old;
++}
++#endif
++
++#ifndef a_fetch_add
++#define a_fetch_add a_fetch_add
++static inline int a_fetch_add(volatile int *p, int v)
++{
++ int old;
++ a_pre_llsc();
++ do old = a_ll(p);
++ while (!a_sc(p, (unsigned)old + v));
++ a_post_llsc();
++ return old;
++}
++#endif
++
++#ifndef a_fetch_and
++#define a_fetch_and a_fetch_and
++static inline int a_fetch_and(volatile int *p, int v)
++{
++ int old;
++ a_pre_llsc();
++ do old = a_ll(p);
++ while (!a_sc(p, old & v));
++ a_post_llsc();
++ return old;
++}
++#endif
++
++#ifndef a_fetch_or
++#define a_fetch_or a_fetch_or
++static inline int a_fetch_or(volatile int *p, int v)
++{
++ int old;
++ a_pre_llsc();
++ do old = a_ll(p);
++ while (!a_sc(p, old | v));
++ a_post_llsc();
++ return old;
++}
++#endif
++
++#endif
++
++#ifndef a_cas
++#error missing definition of a_cas
++#endif
++
++#ifndef a_swap
++#define a_swap a_swap
++static inline int a_swap(volatile int *p, int v)
++{
++ int old;
++ do old = *p;
++ while (a_cas(p, old, v) != old);
++ return old;
++}
++#endif
++
++#ifndef a_fetch_add
++#define a_fetch_add a_fetch_add
++static inline int a_fetch_add(volatile int *p, int v)
++{
++ int old;
++ do old = *p;
++ while (a_cas(p, old, (unsigned)old+v) != old);
++ return old;
++}
++#endif
++
++#ifndef a_fetch_and
++#define a_fetch_and a_fetch_and
++static inline int a_fetch_and(volatile int *p, int v)
++{
++ int old;
++ do old = *p;
++ while (a_cas(p, old, old&v) != old);
++ return old;
++}
++#endif
++#ifndef a_fetch_or
++#define a_fetch_or a_fetch_or
++static inline int a_fetch_or(volatile int *p, int v)
++{
++ int old;
++ do old = *p;
++ while (a_cas(p, old, old|v) != old);
++ return old;
++}
++#endif
++
++#ifndef a_and
++#define a_and a_and
++static inline void a_and(volatile int *p, int v)
++{
++ a_fetch_and(p, v);
++}
++#endif
++
++#ifndef a_or
++#define a_or a_or
++static inline void a_or(volatile int *p, int v)
++{
++ a_fetch_or(p, v);
++}
++#endif
++
++#ifndef a_inc
++#define a_inc a_inc
++static inline void a_inc(volatile int *p)
++{
++ a_fetch_add(p, 1);
++}
++#endif
++
++#ifndef a_dec
++#define a_dec a_dec
++static inline void a_dec(volatile int *p)
++{
++ a_fetch_add(p, -1);
++}
++#endif
++
++#ifndef a_store
++#define a_store a_store
++static inline void a_store(volatile int *p, int v)
++{
++#ifdef a_barrier
++ a_barrier();
++ *p = v;
++ a_barrier();
++#else
++ a_swap(p, v);
++#endif
++}
++#endif
++
++#ifndef a_barrier
++#define a_barrier a_barrier
++static void a_barrier()
++{
++ volatile int tmp = 0;
++ a_cas(&tmp, 0, 0);
++}
++#endif
++
++#ifndef a_spin
++#define a_spin a_barrier
++#endif
++
++#ifndef a_and_64
++#define a_and_64 a_and_64
++static inline void a_and_64(volatile uint64_t *p, uint64_t v)
++{
++ union { uint64_t v; uint32_t r[2]; } u = { v };
++ if (u.r[0]+1) a_and((int *)p, u.r[0]);
++ if (u.r[1]+1) a_and((int *)p+1, u.r[1]);
++}
++#endif
++
++#ifndef a_or_64
++#define a_or_64 a_or_64
++static inline void a_or_64(volatile uint64_t *p, uint64_t v)
++{
++ union { uint64_t v; uint32_t r[2]; } u = { v };
++ if (u.r[0]) a_or((int *)p, u.r[0]);
++ if (u.r[1]) a_or((int *)p+1, u.r[1]);
++}
++#endif
++
++#ifndef a_cas_p
++#define a_cas_p a_cas_p
++static inline void *a_cas_p(volatile void *p, void *t, void *s)
++{
++ return (void *)a_cas((volatile int *)p, (int)t, (int)s);
++}
++#endif
++
++#ifndef a_or_l
++#define a_or_l a_or_l
++static inline void a_or_l(volatile void *p, long v)
++{
++ if (sizeof(long) == sizeof(int)) a_or(p, v);
++ else a_or_64(p, v);
++}
++#endif
++
++#ifndef a_crash
++#define a_crash a_crash
++static inline void a_crash()
++{
++ *(volatile char *)0=0;
++}
++#endif
++
++#ifndef a_ctz_64
++#define a_ctz_64 a_ctz_64
++static inline int a_ctz_64(uint64_t x)
++{
++ static const char debruijn64[64] = {
++ 0, 1, 2, 53, 3, 7, 54, 27, 4, 38, 41, 8, 34, 55, 48, 28,
++ 62, 5, 39, 46, 44, 42, 22, 9, 24, 35, 59, 56, 49, 18, 29, 11,
++ 63, 52, 6, 26, 37, 40, 33, 47, 61, 45, 43, 21, 23, 58, 17, 10,
++ 51, 25, 36, 32, 60, 20, 57, 16, 50, 31, 19, 15, 30, 14, 13, 12
++ };
++ static const char debruijn32[32] = {
++ 0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
++ 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
++ };
++ if (sizeof(long) < 8) {
++ uint32_t y = x;
++ if (!y) {
++ y = x>>32;
++ return 32 + debruijn32[(y&-y)*0x076be629 >> 27];
++ }
++ return debruijn32[(y&-y)*0x076be629 >> 27];
++ }
++ return debruijn64[(x&-x)*0x022fdd63cc95386dull >> 58];
++}
++#endif
++
++#ifndef a_ctz_l
++#define a_ctz_l a_ctz_l
++static inline int a_ctz_l(unsigned long x)
++{
++ static const char debruijn32[32] = {
++ 0, 1, 23, 2, 29, 24, 19, 3, 30, 27, 25, 11, 20, 8, 4, 13,
++ 31, 22, 28, 18, 26, 10, 7, 12, 21, 17, 9, 6, 16, 5, 15, 14
++ };
++ if (sizeof(long) == 8) return a_ctz_64(x);
++ return debruijn32[(x&-x)*0x076be629 >> 27];
++}
++#endif
++
++#endif
+--- a/src/internal/dynlink.h
++++ b/src/internal/dynlink.h
+@@ -64,6 +64,10 @@ struct fdpic_dummy_loadmap {
+ #define DL_FDPIC 0
+ #endif
+
++#ifndef DL_NOMMU_SUPPORT
++#define DL_NOMMU_SUPPORT 0
++#endif
++
+ #if !DL_FDPIC
+ #define IS_RELATIVE(x,s) ( \
+ (R_TYPE(x) == REL_RELATIVE) || \
+--- a/src/internal/libc.h
++++ b/src/internal/libc.h
+@@ -11,13 +11,20 @@ struct __locale_struct {
+ const struct __locale_map *volatile cat[6];
+ };
+
++struct tls_module {
++ struct tls_module *next;
++ void *image;
++ size_t len, size, align, offset;
++};
++
+ struct __libc {
+ int can_do_threads;
+ int threaded;
+ int secure;
+ volatile int threads_minus_1;
+ size_t *auxv;
+- size_t tls_size;
++ struct tls_module *tls_head;
++ size_t tls_size, tls_align, tls_cnt;
+ size_t page_size;
+ struct __locale_struct global_locale;
+ };
+--- /dev/null
++++ b/src/internal/sh/__shcall.c
+@@ -0,0 +1,5 @@
++__attribute__((__visibility__("hidden")))
++int __shcall(void *arg, int (*func)(void *))
++{
++ return func(arg);
++}
+--- a/src/internal/syscall.h
++++ b/src/internal/syscall.h
+@@ -17,9 +17,7 @@
+ typedef long syscall_arg_t;
+ #endif
+
+-#ifdef SHARED
+ __attribute__((visibility("hidden")))
+-#endif
+ long __syscall_ret(unsigned long), __syscall(syscall_arg_t, ...),
+ __syscall_cp(syscall_arg_t, syscall_arg_t, syscall_arg_t, syscall_arg_t,
+ syscall_arg_t, syscall_arg_t, syscall_arg_t);
+@@ -65,7 +63,7 @@ long __syscall_ret(unsigned long), __sys
+ #define __syscall_cp(...) __SYSCALL_DISP(__syscall_cp,__VA_ARGS__)
+ #define syscall_cp(...) __syscall_ret(__syscall_cp(__VA_ARGS__))
+
+-#ifdef SYS_socket
++#ifndef SYSCALL_USE_SOCKETCALL
+ #define __socketcall(nm,a,b,c,d,e,f) syscall(SYS_##nm, a, b, c, d, e, f)
+ #define __socketcall_cp(nm,a,b,c,d,e,f) syscall_cp(SYS_##nm, a, b, c, d, e, f)
+ #else
+--- a/src/internal/version.c
++++ b/src/internal/version.c
+@@ -1,12 +1,9 @@
+-#ifdef SHARED
+-
+ #include "version.h"
+
+ static const char version[] = VERSION;
+
++__attribute__((__visibility__("hidden")))
+ const char *__libc_get_version()
+ {
+ return version;
+ }
+-
+-#endif
+--- a/src/internal/vis.h
++++ b/src/internal/vis.h
+@@ -4,10 +4,9 @@
+ * override default visibilities to reduce the size and performance costs
+ * of position-independent code. */
+
+-#ifndef CRT
+-#ifdef SHARED
++#if !defined(CRT) && !defined(__ASSEMBLER__)
+
+-/* For shared libc.so, all symbols should be protected, but some toolchains
++/* Conceptually, all symbols should be protected, but some toolchains
+ * fail to support copy relocations for protected data, so exclude all
+ * exported data symbols. */
+
+@@ -25,16 +24,4 @@ extern char *optarg, **environ, **__envi
+
+ #pragma GCC visibility push(protected)
+
+-#elif defined(__PIC__)
+-
+-/* If building static libc.a as position-independent code, try to make
+- * everything hidden except possibly-undefined weak references. */
+-
+-__attribute__((__visibility__("default")))
+-extern void (*const __init_array_start)(), (*const __init_array_end)(),
+- (*const __fini_array_start)(), (*const __fini_array_end)();
+-
+-#pragma GCC visibility push(hidden)
+-
+-#endif
+ #endif
+--- /dev/null
++++ b/src/ldso/__dlsym.c
+@@ -0,0 +1,13 @@
++#include <dlfcn.h>
++#include "libc.h"
++
++__attribute__((__visibility__("hidden")))
++void __dl_seterr(const char *, ...);
++
++static void *stub_dlsym(void *restrict p, const char *restrict s, void *restrict ra)
++{
++ __dl_seterr("Symbol not found: %s", s);
++ return 0;
++}
++
++weak_alias(stub_dlsym, __dlsym);
+--- a/src/ldso/arm/dlsym.s
++++ b/src/ldso/arm/dlsym.s
+@@ -1,3 +1,4 @@
++.syntax unified
+ .text
+ .global dlsym
+ .hidden __dlsym
+--- /dev/null
++++ b/src/ldso/arm/find_exidx.c
+@@ -0,0 +1,42 @@
++#define _GNU_SOURCE
++#include <link.h>
++#include <stdint.h>
++
++struct find_exidx_data {
++ uintptr_t pc, exidx_start;
++ int exidx_len;
++};
++
++static int find_exidx(struct dl_phdr_info *info, size_t size, void *ptr)
++{
++ struct find_exidx_data *data = ptr;
++ const ElfW(Phdr) *phdr = info->dlpi_phdr;
++ uintptr_t addr, exidx_start = 0;
++ int i, match = 0, exidx_len = 0;
++
++ for (i = info->dlpi_phnum; i > 0; i--, phdr++) {
++ addr = info->dlpi_addr + phdr->p_vaddr;
++ switch (phdr->p_type) {
++ case PT_LOAD:
++ match |= data->pc >= addr && data->pc < addr + phdr->p_memsz;
++ break;
++ case PT_ARM_EXIDX:
++ exidx_start = addr;
++ exidx_len = phdr->p_memsz;
++ break;
++ }
++ }
++ data->exidx_start = exidx_start;
++ data->exidx_len = exidx_len;
++ return match;
++}
++
++uintptr_t __gnu_Unwind_Find_exidx(uintptr_t pc, int *pcount)
++{
++ struct find_exidx_data data;
++ data.pc = pc;
++ if (dl_iterate_phdr(find_exidx, &data) <= 0)
++ return 0;
++ *pcount = data.exidx_len / 8;
++ return data.exidx_start;
++}
+--- a/src/ldso/dl_iterate_phdr.c
++++ b/src/ldso/dl_iterate_phdr.c
+@@ -1,12 +1,10 @@
+-#ifndef SHARED
+-
+ #include <elf.h>
+ #include <link.h>
+ #include "libc.h"
+
+ #define AUX_CNT 38
+
+-int dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void *data), void *data)
++static int static_dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void *data), void *data)
+ {
+ unsigned char *p;
+ ElfW(Phdr) *phdr, *tls_phdr=0;
+@@ -40,4 +38,5 @@ int dl_iterate_phdr(int(*callback)(struc
+ }
+ return (callback)(&info, sizeof (info), data);
+ }
+-#endif
++
++weak_alias(static_dl_iterate_phdr, dl_iterate_phdr);
+--- a/src/ldso/dladdr.c
++++ b/src/ldso/dladdr.c
+@@ -1,9 +1,10 @@
+ #define _GNU_SOURCE
+ #include <dlfcn.h>
++#include "libc.h"
+
+-int __dladdr(const void *, Dl_info *);
+-
+-int dladdr(const void *addr, Dl_info *info)
++static int stub_dladdr(const void *addr, Dl_info *info)
+ {
+- return __dladdr(addr, info);
++ return 0;
+ }
++
++weak_alias(stub_dladdr, dladdr);
+--- /dev/null
++++ b/src/ldso/dlclose.c
+@@ -0,0 +1,9 @@
++#include <dlfcn.h>
++
++__attribute__((__visibility__("hidden")))
++int __dl_invalid_handle(void *);
++
++int dlclose(void *p)
++{
++ return __dl_invalid_handle(p);
++}
+--- /dev/null
++++ b/src/ldso/dlerror.c
+@@ -0,0 +1,64 @@
++#include <dlfcn.h>
++#include <stdlib.h>
++#include <stdarg.h>
++#include "pthread_impl.h"
++#include "libc.h"
++
++char *dlerror()
++{
++ pthread_t self = __pthread_self();
++ if (!self->dlerror_flag) return 0;
++ self->dlerror_flag = 0;
++ char *s = self->dlerror_buf;
++ if (s == (void *)-1)
++ return "Dynamic linker failed to allocate memory for error message";
++ else
++ return s;
++}
++
++void __dl_thread_cleanup(void)
++{
++ pthread_t self = __pthread_self();
++ if (self->dlerror_buf != (void *)-1)
++ free(self->dlerror_buf);
++}
++
++__attribute__((__visibility__("hidden")))
++void __dl_vseterr(const char *fmt, va_list ap)
++{
++ va_list ap2;
++ va_copy(ap2, ap);
++ pthread_t self = __pthread_self();
++ if (self->dlerror_buf != (void *)-1)
++ free(self->dlerror_buf);
++ size_t len = vsnprintf(0, 0, fmt, ap2);
++ va_end(ap2);
++ char *buf = malloc(len+1);
++ if (buf) {
++ vsnprintf(buf, len+1, fmt, ap);
++ } else {
++ buf = (void *)-1;
++ }
++ self->dlerror_buf = buf;
++ self->dlerror_flag = 1;
++}
++
++__attribute__((__visibility__("hidden")))
++void __dl_seterr(const char *fmt, ...)
++{
++ va_list ap;
++ va_start(ap, fmt);
++ __dl_vseterr(fmt, ap);
++ va_end(ap);
++}
++
++__attribute__((__visibility__("hidden")))
++int __dl_invalid_handle(void *);
++
++static int stub_invalid_handle(void *h)
++{
++ __dl_seterr("Invalid library handle %p", (void *)h);
++ return 1;
++}
++
++weak_alias(stub_invalid_handle, __dl_invalid_handle);
+--- a/src/ldso/dlinfo.c
++++ b/src/ldso/dlinfo.c
+@@ -1,9 +1,19 @@
+ #define _GNU_SOURCE
+ #include <dlfcn.h>
+
+-int __dlinfo(void *, int, void *);
++__attribute__((__visibility__("hidden")))
++int __dl_invalid_handle(void *);
++
++__attribute__((__visibility__("hidden")))
++void __dl_seterr(const char *, ...);
+
+ int dlinfo(void *dso, int req, void *res)
+ {
+- return __dlinfo(dso, req, res);
++ if (__dl_invalid_handle(dso)) return -1;
++ if (req != RTLD_DI_LINKMAP) {
++ __dl_seterr("Unsupported request %d", req);
++ return -1;
++ }
++ *(struct link_map **)res = dso;
++ return 0;
+ }
+--- /dev/null
++++ b/src/ldso/dlopen.c
+@@ -0,0 +1,13 @@
++#include <dlfcn.h>
++#include "libc.h"
++
++__attribute__((__visibility__("hidden")))
++void __dl_seterr(const char *, ...);
++
++static void *stub_dlopen(const char *file, int mode)
++{
++ __dl_seterr("Dynamic loading not supported");
++ return 0;
++}
++
++weak_alias(stub_dlopen, dlopen);
+--- a/src/ldso/dlstart.c
++++ /dev/null
+@@ -1,150 +0,0 @@
+-#include <stddef.h>
+-#include "dynlink.h"
+-
+-#ifdef SHARED
+-
+-#ifndef START
+-#define START "_dlstart"
+-#endif
+-
+-#include "crt_arch.h"
+-
+-#ifndef GETFUNCSYM
+-#define GETFUNCSYM(fp, sym, got) do { \
+- __attribute__((__visibility__("hidden"))) void sym(); \
+- static void (*static_func_ptr)() = sym; \
+- __asm__ __volatile__ ( "" : "+m"(static_func_ptr) : : "memory"); \
+- *(fp) = static_func_ptr; } while(0)
+-#endif
+-
+-__attribute__((__visibility__("hidden")))
+-void _dlstart_c(size_t *sp, size_t *dynv)
+-{
+- size_t i, aux[AUX_CNT], dyn[DYN_CNT];
+- size_t *rel, rel_size, base;
+-
+- int argc = *sp;
+- char **argv = (void *)(sp+1);
+-
+- for (i=argc+1; argv[i]; i++);
+- size_t *auxv = (void *)(argv+i+1);
+-
+- for (i=0; i<AUX_CNT; i++) aux[i] = 0;
+- for (i=0; auxv[i]; i+=2) if (auxv[i]<AUX_CNT)
+- aux[auxv[i]] = auxv[i+1];
+-
+-#if DL_FDPIC
+- struct fdpic_loadseg *segs, fakeseg;
+- size_t j;
+- if (dynv) {
+- /* crt_arch.h entry point asm is responsible for reserving
+- * space and moving the extra fdpic arguments to the stack
+- * vector where they are easily accessible from C. */
+- segs = ((struct fdpic_loadmap *)(sp[-1] ? sp[-1] : sp[-2]))->segs;
+- } else {
+- /* If dynv is null, the entry point was started from loader
+- * that is not fdpic-aware. We can assume normal fixed-
+- * displacement ELF loading was performed, but when ldso was
+- * run as a command, finding the Ehdr is a heursitic: we
+- * have to assume Phdrs start in the first 4k of the file. */
+- base = aux[AT_BASE];
+- if (!base) base = aux[AT_PHDR] & -4096;
+- segs = &fakeseg;
+- segs[0].addr = base;
+- segs[0].p_vaddr = 0;
+- segs[0].p_memsz = -1;
+- Ehdr *eh = (void *)base;
+- Phdr *ph = (void *)(base + eh->e_phoff);
+- size_t phnum = eh->e_phnum;
+- size_t phent = eh->e_phentsize;
+- while (phnum-- && ph->p_type != PT_DYNAMIC)
+- ph = (void *)((size_t)ph + phent);
+- dynv = (void *)(base + ph->p_vaddr);
+- }
+-#endif
+-
+- for (i=0; i<DYN_CNT; i++) dyn[i] = 0;
+- for (i=0; dynv[i]; i+=2) if (dynv[i]<DYN_CNT)
+- dyn[dynv[i]] = dynv[i+1];
+-
+-#if DL_FDPIC
+- for (i=0; i<DYN_CNT; i++) {
+- if (i==DT_RELASZ || i==DT_RELSZ) continue;
+- if (!dyn[i]) continue;
+- for (j=0; dyn[i]-segs[j].p_vaddr >= segs[j].p_memsz; j++);
+- dyn[i] += segs[j].addr - segs[j].p_vaddr;
+- }
+- base = 0;
+-
+- const Sym *syms = (void *)dyn[DT_SYMTAB];
+-
+- rel = (void *)dyn[DT_RELA];
+- rel_size = dyn[DT_RELASZ];
+- for (; rel_size; rel+=3, rel_size-=3*sizeof(size_t)) {
+- if (!IS_RELATIVE(rel[1], syms)) continue;
+- for (j=0; rel[0]-segs[j].p_vaddr >= segs[j].p_memsz; j++);
+- size_t *rel_addr = (void *)
+- (rel[0] + segs[j].addr - segs[j].p_vaddr);
+- if (R_TYPE(rel[1]) == REL_FUNCDESC_VAL) {
+- *rel_addr += segs[rel_addr[1]].addr
+- - segs[rel_addr[1]].p_vaddr
+- + syms[R_SYM(rel[1])].st_value;
+- rel_addr[1] = dyn[DT_PLTGOT];
+- } else {
+- size_t val = syms[R_SYM(rel[1])].st_value;
+- for (j=0; val-segs[j].p_vaddr >= segs[j].p_memsz; j++);
+- *rel_addr = rel[2] + segs[j].addr - segs[j].p_vaddr + val;
+- }
+- }
+-#else
+- /* If the dynamic linker is invoked as a command, its load
+- * address is not available in the aux vector. Instead, compute
+- * the load address as the difference between &_DYNAMIC and the
+- * virtual address in the PT_DYNAMIC program header. */
+- base = aux[AT_BASE];
+- if (!base) {
+- size_t phnum = aux[AT_PHNUM];
+- size_t phentsize = aux[AT_PHENT];
+- Phdr *ph = (void *)aux[AT_PHDR];
+- for (i=phnum; i--; ph = (void *)((char *)ph + phentsize)) {
+- if (ph->p_type == PT_DYNAMIC) {
+- base = (size_t)dynv - ph->p_vaddr;
+- break;
+- }
+- }
+- }
+-
+- /* MIPS uses an ugly packed form for GOT relocations. Since we
+- * can't make function calls yet and the code is tiny anyway,
+- * it's simply inlined here. */
+- if (NEED_MIPS_GOT_RELOCS) {
+- size_t local_cnt = 0;
+- size_t *got = (void *)(base + dyn[DT_PLTGOT]);
+- for (i=0; dynv[i]; i+=2) if (dynv[i]==DT_MIPS_LOCAL_GOTNO)
+- local_cnt = dynv[i+1];
+- for (i=0; i<local_cnt; i++) got[i] += base;
+- }
+-
+- rel = (void *)(base+dyn[DT_REL]);
+- rel_size = dyn[DT_RELSZ];
+- for (; rel_size; rel+=2, rel_size-=2*sizeof(size_t)) {
+- if (!IS_RELATIVE(rel[1], 0)) continue;
+- size_t *rel_addr = (void *)(base + rel[0]);
+- *rel_addr += base;
+- }
+-
+- rel = (void *)(base+dyn[DT_RELA]);
+- rel_size = dyn[DT_RELASZ];
+- for (; rel_size; rel+=3, rel_size-=3*sizeof(size_t)) {
+- if (!IS_RELATIVE(rel[1], 0)) continue;
+- size_t *rel_addr = (void *)(base + rel[0]);
+- *rel_addr = base + rel[2];
+- }
+-#endif
+-
+- stage2_func dls2;
+- GETFUNCSYM(&dls2, __dls2, base+dyn[DT_PLTGOT]);
+- dls2((void *)base, sp);
+-}
+-
+-#endif
+--- a/src/ldso/dynlink.c
++++ /dev/null
+@@ -1,2000 +0,0 @@
+-#define _GNU_SOURCE
+-#include <stdio.h>
+-#include <stdlib.h>
+-#include <stdarg.h>
+-#include <stddef.h>
+-#include <string.h>
+-#include <unistd.h>
+-#include <stdint.h>
+-#include <elf.h>
+-#include <sys/mman.h>
+-#include <limits.h>
+-#include <fcntl.h>
+-#include <sys/stat.h>
+-#include <errno.h>
+-#include <link.h>
+-#include <setjmp.h>
+-#include <pthread.h>
+-#include <ctype.h>
+-#include <dlfcn.h>
+-#include "pthread_impl.h"
+-#include "libc.h"
+-#include "dynlink.h"
+-
+-static void error(const char *, ...);
+-
+-#ifdef SHARED
+-
+-#define MAXP2(a,b) (-(-(a)&-(b)))
+-#define ALIGN(x,y) ((x)+(y)-1 & -(y))
+-
+-struct debug {
+- int ver;
+- void *head;
+- void (*bp)(void);
+- int state;
+- void *base;
+-};
+-
+-struct td_index {
+- size_t args[2];
+- struct td_index *next;
+-};
+-
+-struct dso {
+-#if DL_FDPIC
+- struct fdpic_loadmap *loadmap;
+-#else
+- unsigned char *base;
+-#endif
+- char *name;
+- size_t *dynv;
+- struct dso *next, *prev;
+-
+- Phdr *phdr;
+- int phnum;
+- size_t phentsize;
+- int refcnt;
+- Sym *syms;
+- uint32_t *hashtab;
+- uint32_t *ghashtab;
+- int16_t *versym;
+- char *strings;
+- unsigned char *map;
+- size_t map_len;
+- dev_t dev;
+- ino_t ino;
+- signed char global;
+- char relocated;
+- char constructed;
+- char kernel_mapped;
+- struct dso **deps, *needed_by;
+- char *rpath_orig, *rpath;
+- void *tls_image;
+- size_t tls_len, tls_size, tls_align, tls_id, tls_offset;
+- size_t relro_start, relro_end;
+- void **new_dtv;
+- unsigned char *new_tls;
+- volatile int new_dtv_idx, new_tls_idx;
+- struct td_index *td_index;
+- struct dso *fini_next;
+- char *shortname;
+-#if DL_FDPIC
+- unsigned char *base;
+-#else
+- struct fdpic_loadmap *loadmap;
+-#endif
+- struct funcdesc {
+- void *addr;
+- size_t *got;
+- } *funcdescs;
+- size_t *got;
+- char buf[];
+-};
+-
+-struct symdef {
+- Sym *sym;
+- struct dso *dso;
+-};
+-
+-int __init_tp(void *);
+-void __init_libc(char **, char *);
+-
+-const char *__libc_get_version(void);
+-
+-static struct builtin_tls {
+- char c;
+- struct pthread pt;
+- void *space[16];
+-} builtin_tls[1];
+-#define MIN_TLS_ALIGN offsetof(struct builtin_tls, pt)
+-
+-#define ADDEND_LIMIT 4096
+-static size_t *saved_addends, *apply_addends_to;
+-
+-static struct dso ldso;
+-static struct dso *head, *tail, *fini_head;
+-static char *env_path, *sys_path;
+-static unsigned long long gencnt;
+-static int runtime;
+-static int ldd_mode;
+-static int ldso_fail;
+-static int noload;
+-static jmp_buf *rtld_fail;
+-static pthread_rwlock_t lock;
+-static struct debug debug;
+-static size_t tls_cnt, tls_offset, tls_align = MIN_TLS_ALIGN;
+-static size_t static_tls_cnt;
+-static pthread_mutex_t init_fini_lock = { ._m_type = PTHREAD_MUTEX_RECURSIVE };
+-static struct fdpic_loadmap *app_loadmap;
+-static struct fdpic_dummy_loadmap app_dummy_loadmap;
+-
+-struct debug *_dl_debug_addr = &debug;
+-
+-static int dl_strcmp(const char *l, const char *r)
+-{
+- for (; *l==*r && *l; l++, r++);
+- return *(unsigned char *)l - *(unsigned char *)r;
+-}
+-#define strcmp(l,r) dl_strcmp(l,r)
+-
+-/* Compute load address for a virtual address in a given dso. */
+-#if DL_FDPIC
+-static void *laddr(const struct dso *p, size_t v)
+-{
+- size_t j=0;
+- if (!p->loadmap) return p->base + v;
+- for (j=0; v-p->loadmap->segs[j].p_vaddr >= p->loadmap->segs[j].p_memsz; j++);
+- return (void *)(v - p->loadmap->segs[j].p_vaddr + p->loadmap->segs[j].addr);
+-}
+-#define fpaddr(p, v) ((void (*)())&(struct funcdesc){ \
+- laddr(p, v), (p)->got })
+-#else
+-#define laddr(p, v) (void *)((p)->base + (v))
+-#define fpaddr(p, v) ((void (*)())laddr(p, v))
+-#endif
+-
+-static void decode_vec(size_t *v, size_t *a, size_t cnt)
+-{
+- size_t i;
+- for (i=0; i<cnt; i++) a[i] = 0;
+- for (; v[0]; v+=2) if (v[0]-1<cnt-1) {
+- a[0] |= 1UL<<v[0];
+- a[v[0]] = v[1];
+- }
+-}
+-
+-static int search_vec(size_t *v, size_t *r, size_t key)
+-{
+- for (; v[0]!=key; v+=2)
+- if (!v[0]) return 0;
+- *r = v[1];
+- return 1;
+-}
+-
+-static uint32_t sysv_hash(const char *s0)
+-{
+- const unsigned char *s = (void *)s0;
+- uint_fast32_t h = 0;
+- while (*s) {
+- h = 16*h + *s++;
+- h ^= h>>24 & 0xf0;
+- }
+- return h & 0xfffffff;
+-}
+-
+-static uint32_t gnu_hash(const char *s0)
+-{
+- const unsigned char *s = (void *)s0;
+- uint_fast32_t h = 5381;
+- for (; *s; s++)
+- h += h*32 + *s;
+- return h;
+-}
+-
+-static Sym *sysv_lookup(const char *s, uint32_t h, struct dso *dso)
+-{
+- size_t i;
+- Sym *syms = dso->syms;
+- uint32_t *hashtab = dso->hashtab;
+- char *strings = dso->strings;
+- for (i=hashtab[2+h%hashtab[0]]; i; i=hashtab[2+hashtab[0]+i]) {
+- if ((!dso->versym || dso->versym[i] >= 0)
+- && (!strcmp(s, strings+syms[i].st_name)))
+- return syms+i;
+- }
+- return 0;
+-}
+-
+-static Sym *gnu_lookup(uint32_t h1, uint32_t *hashtab, struct dso *dso, const char *s)
+-{
+- uint32_t nbuckets = hashtab[0];
+- uint32_t *buckets = hashtab + 4 + hashtab[2]*(sizeof(size_t)/4);
+- uint32_t i = buckets[h1 % nbuckets];
+-
+- if (!i) return 0;
+-
+- uint32_t *hashval = buckets + nbuckets + (i - hashtab[1]);
+-
+- for (h1 |= 1; ; i++) {
+- uint32_t h2 = *hashval++;
+- if ((h1 == (h2|1)) && (!dso->versym || dso->versym[i] >= 0)
+- && !strcmp(s, dso->strings + dso->syms[i].st_name))
+- return dso->syms+i;
+- if (h2 & 1) break;
+- }
+-
+- return 0;
+-}
+-
+-static Sym *gnu_lookup_filtered(uint32_t h1, uint32_t *hashtab, struct dso *dso, const char *s, uint32_t fofs, size_t fmask)
+-{
+- const size_t *bloomwords = (const void *)(hashtab+4);
+- size_t f = bloomwords[fofs & (hashtab[2]-1)];
+- if (!(f & fmask)) return 0;
+-
+- f >>= (h1 >> hashtab[3]) % (8 * sizeof f);
+- if (!(f & 1)) return 0;
+-
+- return gnu_lookup(h1, hashtab, dso, s);
+-}
+-
+-#define OK_TYPES (1<<STT_NOTYPE | 1<<STT_OBJECT | 1<<STT_FUNC | 1<<STT_COMMON | 1<<STT_TLS)
+-#define OK_BINDS (1<<STB_GLOBAL | 1<<STB_WEAK | 1<<STB_GNU_UNIQUE)
+-
+-#ifndef ARCH_SYM_REJECT_UND
+-#define ARCH_SYM_REJECT_UND(s) 0
+-#endif
+-
+-static struct symdef find_sym(struct dso *dso, const char *s, int need_def)
+-{
+- uint32_t h = 0, gh, gho, *ght;
+- size_t ghm = 0;
+- struct symdef def = {0};
+- for (; dso; dso=dso->next) {
+- Sym *sym;
+- if (!dso->global) continue;
+- if ((ght = dso->ghashtab)) {
+- if (!ghm) {
+- gh = gnu_hash(s);
+- int maskbits = 8 * sizeof ghm;
+- gho = gh / maskbits;
+- ghm = 1ul << gh % maskbits;
+- }
+- sym = gnu_lookup_filtered(gh, ght, dso, s, gho, ghm);
+- } else {
+- if (!h) h = sysv_hash(s);
+- sym = sysv_lookup(s, h, dso);
+- }
+- if (!sym) continue;
+- if (!sym->st_shndx)
+- if (need_def || (sym->st_info&0xf) == STT_TLS
+- || ARCH_SYM_REJECT_UND(sym))
+- continue;
+- if (!sym->st_value)
+- if ((sym->st_info&0xf) != STT_TLS)
+- continue;
+- if (!(1<<(sym->st_info&0xf) & OK_TYPES)) continue;
+- if (!(1<<(sym->st_info>>4) & OK_BINDS)) continue;
+-
+- if (def.sym && sym->st_info>>4 == STB_WEAK) continue;
+- def.sym = sym;
+- def.dso = dso;
+- if (sym->st_info>>4 == STB_GLOBAL) break;
+- }
+- return def;
+-}
+-
+-__attribute__((__visibility__("hidden")))
+-ptrdiff_t __tlsdesc_static(), __tlsdesc_dynamic();
+-
+-static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stride)
+-{
+- unsigned char *base = dso->base;
+- Sym *syms = dso->syms;
+- char *strings = dso->strings;
+- Sym *sym;
+- const char *name;
+- void *ctx;
+- int type;
+- int sym_index;
+- struct symdef def;
+- size_t *reloc_addr;
+- size_t sym_val;
+- size_t tls_val;
+- size_t addend;
+- int skip_relative = 0, reuse_addends = 0, save_slot = 0;
+-
+- if (dso == &ldso) {
+- /* Only ldso's REL table needs addend saving/reuse. */
+- if (rel == apply_addends_to)
+- reuse_addends = 1;
+- skip_relative = 1;
+- }
+-
+- for (; rel_size; rel+=stride, rel_size-=stride*sizeof(size_t)) {
+- if (skip_relative && IS_RELATIVE(rel[1], dso->syms)) continue;
+- type = R_TYPE(rel[1]);
+- if (type == REL_NONE) continue;
+- sym_index = R_SYM(rel[1]);
+- reloc_addr = laddr(dso, rel[0]);
+- if (sym_index) {
+- sym = syms + sym_index;
+- name = strings + sym->st_name;
+- ctx = type==REL_COPY ? head->next : head;
+- def = (sym->st_info&0xf) == STT_SECTION
+- ? (struct symdef){ .dso = dso, .sym = sym }
+- : find_sym(ctx, name, type==REL_PLT);
+- if (!def.sym && (sym->st_shndx != SHN_UNDEF
+- || sym->st_info>>4 != STB_WEAK)) {
+- error("Error relocating %s: %s: symbol not found",
+- dso->name, name);
+- if (runtime) longjmp(*rtld_fail, 1);
+- continue;
+- }
+- } else {
+- sym = 0;
+- def.sym = 0;
+- def.dso = dso;
+- }
+-
+- if (stride > 2) {
+- addend = rel[2];
+- } else if (type==REL_GOT || type==REL_PLT|| type==REL_COPY) {
+- addend = 0;
+- } else if (reuse_addends) {
+- /* Save original addend in stage 2 where the dso
+- * chain consists of just ldso; otherwise read back
+- * saved addend since the inline one was clobbered. */
+- if (head==&ldso)
+- saved_addends[save_slot] = *reloc_addr;
+- addend = saved_addends[save_slot++];
+- } else {
+- addend = *reloc_addr;
+- }
+-
+- sym_val = def.sym ? (size_t)laddr(def.dso, def.sym->st_value) : 0;
+- tls_val = def.sym ? def.sym->st_value : 0;
+-
+- switch(type) {
+- case REL_NONE:
+- break;
+- case REL_OFFSET:
+- addend -= (size_t)reloc_addr;
+- case REL_SYMBOLIC:
+- case REL_GOT:
+- case REL_PLT:
+- *reloc_addr = sym_val + addend;
+- break;
+- case REL_RELATIVE:
+- *reloc_addr = (size_t)base + addend;
+- break;
+- case REL_SYM_OR_REL:
+- if (sym) *reloc_addr = sym_val + addend;
+- else *reloc_addr = (size_t)base + addend;
+- break;
+- case REL_COPY:
+- memcpy(reloc_addr, (void *)sym_val, sym->st_size);
+- break;
+- case REL_OFFSET32:
+- *(uint32_t *)reloc_addr = sym_val + addend
+- - (size_t)reloc_addr;
+- break;
+- case REL_FUNCDESC:
+- *reloc_addr = def.sym ? (size_t)(def.dso->funcdescs
+- + (def.sym - def.dso->syms)) : 0;
+- break;
+- case REL_FUNCDESC_VAL:
+- if ((sym->st_info&0xf) == STT_SECTION) *reloc_addr += sym_val;
+- else *reloc_addr = sym_val;
+- reloc_addr[1] = def.sym ? (size_t)def.dso->got : 0;
+- break;
+- case REL_DTPMOD:
+- *reloc_addr = def.dso->tls_id;
+- break;
+- case REL_DTPOFF:
+- *reloc_addr = tls_val + addend - DTP_OFFSET;
+- break;
+-#ifdef TLS_ABOVE_TP
+- case REL_TPOFF:
+- *reloc_addr = tls_val + def.dso->tls_offset + TPOFF_K + addend;
+- break;
+-#else
+- case REL_TPOFF:
+- *reloc_addr = tls_val - def.dso->tls_offset + addend;
+- break;
+- case REL_TPOFF_NEG:
+- *reloc_addr = def.dso->tls_offset - tls_val + addend;
+- break;
+-#endif
+- case REL_TLSDESC:
+- if (stride<3) addend = reloc_addr[1];
+- if (runtime && def.dso->tls_id >= static_tls_cnt) {
+- struct td_index *new = malloc(sizeof *new);
+- if (!new) {
+- error(
+- "Error relocating %s: cannot allocate TLSDESC for %s",
+- dso->name, sym ? name : "(local)" );
+- longjmp(*rtld_fail, 1);
+- }
+- new->next = dso->td_index;
+- dso->td_index = new;
+- new->args[0] = def.dso->tls_id;
+- new->args[1] = tls_val + addend;
+- reloc_addr[0] = (size_t)__tlsdesc_dynamic;
+- reloc_addr[1] = (size_t)new;
+- } else {
+- reloc_addr[0] = (size_t)__tlsdesc_static;
+-#ifdef TLS_ABOVE_TP
+- reloc_addr[1] = tls_val + def.dso->tls_offset
+- + TPOFF_K + addend;
+-#else
+- reloc_addr[1] = tls_val - def.dso->tls_offset
+- + addend;
+-#endif
+- }
+- break;
+- default:
+- error("Error relocating %s: unsupported relocation type %d",
+- dso->name, type);
+- if (runtime) longjmp(*rtld_fail, 1);
+- continue;
+- }
+- }
+-}
+-
+-/* A huge hack: to make up for the wastefulness of shared libraries
+- * needing at least a page of dirty memory even if they have no global
+- * data, we reclaim the gaps at the beginning and end of writable maps
+- * and "donate" them to the heap by setting up minimal malloc
+- * structures and then freeing them. */
+-
+-static void reclaim(struct dso *dso, size_t start, size_t end)
+-{
+- size_t *a, *z;
+- if (start >= dso->relro_start && start < dso->relro_end) start = dso->relro_end;
+- if (end >= dso->relro_start && end < dso->relro_end) end = dso->relro_start;
+- start = start + 6*sizeof(size_t)-1 & -4*sizeof(size_t);
+- end = (end & -4*sizeof(size_t)) - 2*sizeof(size_t);
+- if (start>end || end-start < 4*sizeof(size_t)) return;
+- a = laddr(dso, start);
+- z = laddr(dso, end);
+- a[-2] = 1;
+- a[-1] = z[0] = end-start + 2*sizeof(size_t) | 1;
+- z[1] = 1;
+- free(a);
+-}
+-
+-static void reclaim_gaps(struct dso *dso)
+-{
+- Phdr *ph = dso->phdr;
+- size_t phcnt = dso->phnum;
+-
+- if (DL_FDPIC) return; // FIXME
+- for (; phcnt--; ph=(void *)((char *)ph+dso->phentsize)) {
+- if (ph->p_type!=PT_LOAD) continue;
+- if ((ph->p_flags&(PF_R|PF_W))!=(PF_R|PF_W)) continue;
+- reclaim(dso, ph->p_vaddr & -PAGE_SIZE, ph->p_vaddr);
+- reclaim(dso, ph->p_vaddr+ph->p_memsz,
+- ph->p_vaddr+ph->p_memsz+PAGE_SIZE-1 & -PAGE_SIZE);
+- }
+-}
+-
+-static void *mmap_fixed(void *p, size_t n, int prot, int flags, int fd, off_t off)
+-{
+- char *q = mmap(p, n, prot, flags, fd, off);
+- if (q != MAP_FAILED || errno != EINVAL) return q;
+- /* Fallbacks for MAP_FIXED failure on NOMMU kernels. */
+- if (flags & MAP_ANONYMOUS) {
+- memset(p, 0, n);
+- return p;
+- }
+- ssize_t r;
+- if (lseek(fd, off, SEEK_SET) < 0) return MAP_FAILED;
+- for (q=p; n; q+=r, off+=r, n-=r) {
+- r = read(fd, q, n);
+- if (r < 0 && errno != EINTR) return MAP_FAILED;
+- if (!r) {
+- memset(q, 0, n);
+- break;
+- }
+- }
+- return p;
+-}
+-
+-static void unmap_library(struct dso *dso)
+-{
+- if (dso->loadmap) {
+- size_t i;
+- for (i=0; i<dso->loadmap->nsegs; i++) {
+- if (!dso->loadmap->segs[i].p_memsz)
+- continue;
+- munmap((void *)dso->loadmap->segs[i].addr,
+- dso->loadmap->segs[i].p_memsz);
+- }
+- free(dso->loadmap);
+- } else if (dso->map && dso->map_len) {
+- munmap(dso->map, dso->map_len);
+- }
+-}
+-
+-static void *map_library(int fd, struct dso *dso)
+-{
+- Ehdr buf[(896+sizeof(Ehdr))/sizeof(Ehdr)];
+- void *allocated_buf=0;
+- size_t phsize;
+- size_t addr_min=SIZE_MAX, addr_max=0, map_len;
+- size_t this_min, this_max;
+- size_t nsegs = 0;
+- off_t off_start;
+- Ehdr *eh;
+- Phdr *ph, *ph0;
+- unsigned prot;
+- unsigned char *map=MAP_FAILED, *base;
+- size_t dyn=0;
+- size_t tls_image=0;
+- size_t i;
+-
+- ssize_t l = read(fd, buf, sizeof buf);
+- eh = buf;
+- if (l<0) return 0;
+- if (l<sizeof *eh || (eh->e_type != ET_DYN && eh->e_type != ET_EXEC))
+- goto noexec;
+- phsize = eh->e_phentsize * eh->e_phnum;
+- if (phsize > sizeof buf - sizeof *eh) {
+- allocated_buf = malloc(phsize);
+- if (!allocated_buf) return 0;
+- l = pread(fd, allocated_buf, phsize, eh->e_phoff);
+- if (l < 0) goto error;
+- if (l != phsize) goto noexec;
+- ph = ph0 = allocated_buf;
+- } else if (eh->e_phoff + phsize > l) {
+- l = pread(fd, buf+1, phsize, eh->e_phoff);
+- if (l < 0) goto error;
+- if (l != phsize) goto noexec;
+- ph = ph0 = (void *)(buf + 1);
+- } else {
+- ph = ph0 = (void *)((char *)buf + eh->e_phoff);
+- }
+- for (i=eh->e_phnum; i; i--, ph=(void *)((char *)ph+eh->e_phentsize)) {
+- if (ph->p_type == PT_DYNAMIC) {
+- dyn = ph->p_vaddr;
+- } else if (ph->p_type == PT_TLS) {
+- tls_image = ph->p_vaddr;
+- dso->tls_align = ph->p_align;
+- dso->tls_len = ph->p_filesz;
+- dso->tls_size = ph->p_memsz;
+- } else if (ph->p_type == PT_GNU_RELRO) {
+- dso->relro_start = ph->p_vaddr & -PAGE_SIZE;
+- dso->relro_end = (ph->p_vaddr + ph->p_memsz) & -PAGE_SIZE;
+- }
+- if (ph->p_type != PT_LOAD) continue;
+- nsegs++;
+- if (ph->p_vaddr < addr_min) {
+- addr_min = ph->p_vaddr;
+- off_start = ph->p_offset;
+- prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
+- ((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
+- ((ph->p_flags&PF_X) ? PROT_EXEC : 0));
+- }
+- if (ph->p_vaddr+ph->p_memsz > addr_max) {
+- addr_max = ph->p_vaddr+ph->p_memsz;
+- }
+- }
+- if (!dyn) goto noexec;
+- if (DL_FDPIC && !(eh->e_flags & FDPIC_CONSTDISP_FLAG)) {
+- dso->loadmap = calloc(1, sizeof *dso->loadmap
+- + nsegs * sizeof *dso->loadmap->segs);
+- if (!dso->loadmap) goto error;
+- dso->loadmap->nsegs = nsegs;
+- for (ph=ph0, i=0; i<nsegs; ph=(void *)((char *)ph+eh->e_phentsize)) {
+- if (ph->p_type != PT_LOAD) continue;
+- prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
+- ((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
+- ((ph->p_flags&PF_X) ? PROT_EXEC : 0));
+- map = mmap(0, ph->p_memsz + (ph->p_vaddr & PAGE_SIZE-1),
+- prot, (prot&PROT_WRITE) ? MAP_PRIVATE : MAP_SHARED,
+- fd, ph->p_offset & -PAGE_SIZE);
+- if (map == MAP_FAILED) {
+- unmap_library(dso);
+- goto error;
+- }
+- dso->loadmap->segs[i].addr = (size_t)map +
+- (ph->p_vaddr & PAGE_SIZE-1);
+- dso->loadmap->segs[i].p_vaddr = ph->p_vaddr;
+- dso->loadmap->segs[i].p_memsz = ph->p_memsz;
+- i++;
+- }
+- map = (void *)dso->loadmap->segs[0].addr;
+- map_len = 0;
+- goto done_mapping;
+- }
+- addr_max += PAGE_SIZE-1;
+- addr_max &= -PAGE_SIZE;
+- addr_min &= -PAGE_SIZE;
+- off_start &= -PAGE_SIZE;
+- map_len = addr_max - addr_min + off_start;
+- /* The first time, we map too much, possibly even more than
+- * the length of the file. This is okay because we will not
+- * use the invalid part; we just need to reserve the right
+- * amount of virtual address space to map over later. */
+- map = mmap((void *)addr_min, map_len, prot, MAP_PRIVATE, fd, off_start);
+- if (map==MAP_FAILED) goto error;
+- dso->map = map;
+- dso->map_len = map_len;
+- /* If the loaded file is not relocatable and the requested address is
+- * not available, then the load operation must fail. */
+- if (eh->e_type != ET_DYN && addr_min && map!=(void *)addr_min) {
+- errno = EBUSY;
+- goto error;
+- }
+- base = map - addr_min;
+- dso->phdr = 0;
+- dso->phnum = 0;
+- for (ph=ph0, i=eh->e_phnum; i; i--, ph=(void *)((char *)ph+eh->e_phentsize)) {
+- if (ph->p_type != PT_LOAD) continue;
+- /* Check if the programs headers are in this load segment, and
+- * if so, record the address for use by dl_iterate_phdr. */
+- if (!dso->phdr && eh->e_phoff >= ph->p_offset
+- && eh->e_phoff+phsize <= ph->p_offset+ph->p_filesz) {
+- dso->phdr = (void *)(base + ph->p_vaddr
+- + (eh->e_phoff-ph->p_offset));
+- dso->phnum = eh->e_phnum;
+- dso->phentsize = eh->e_phentsize;
+- }
+- /* Reuse the existing mapping for the lowest-address LOAD */
+- if ((ph->p_vaddr & -PAGE_SIZE) == addr_min) continue;
+- this_min = ph->p_vaddr & -PAGE_SIZE;
+- this_max = ph->p_vaddr+ph->p_memsz+PAGE_SIZE-1 & -PAGE_SIZE;
+- off_start = ph->p_offset & -PAGE_SIZE;
+- prot = (((ph->p_flags&PF_R) ? PROT_READ : 0) |
+- ((ph->p_flags&PF_W) ? PROT_WRITE: 0) |
+- ((ph->p_flags&PF_X) ? PROT_EXEC : 0));
+- if (mmap_fixed(base+this_min, this_max-this_min, prot, MAP_PRIVATE|MAP_FIXED, fd, off_start) == MAP_FAILED)
+- goto error;
+- if (ph->p_memsz > ph->p_filesz) {
+- size_t brk = (size_t)base+ph->p_vaddr+ph->p_filesz;
+- size_t pgbrk = brk+PAGE_SIZE-1 & -PAGE_SIZE;
+- memset((void *)brk, 0, pgbrk-brk & PAGE_SIZE-1);
+- if (pgbrk-(size_t)base < this_max && mmap_fixed((void *)pgbrk, (size_t)base+this_max-pgbrk, prot, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) == MAP_FAILED)
+- goto error;
+- }
+- }
+- for (i=0; ((size_t *)(base+dyn))[i]; i+=2)
+- if (((size_t *)(base+dyn))[i]==DT_TEXTREL) {
+- if (mprotect(map, map_len, PROT_READ|PROT_WRITE|PROT_EXEC)
+- && errno != ENOSYS)
+- goto error;
+- break;
+- }
+-done_mapping:
+- dso->base = base;
+- dso->dynv = laddr(dso, dyn);
+- if (dso->tls_size) dso->tls_image = laddr(dso, tls_image);
+- if (!runtime) reclaim_gaps(dso);
+- free(allocated_buf);
+- return map;
+-noexec:
+- errno = ENOEXEC;
+-error:
+- if (map!=MAP_FAILED) unmap_library(dso);
+- free(allocated_buf);
+- return 0;
+-}
+-
+-static int path_open(const char *name, const char *s, char *buf, size_t buf_size)
+-{
+- size_t l;
+- int fd;
+- for (;;) {
+- s += strspn(s, ":\n");
+- l = strcspn(s, ":\n");
+- if (l-1 >= INT_MAX) return -1;
+- if (snprintf(buf, buf_size, "%.*s/%s", (int)l, s, name) < buf_size) {
+- if ((fd = open(buf, O_RDONLY|O_CLOEXEC))>=0) return fd;
+- switch (errno) {
+- case ENOENT:
+- case ENOTDIR:
+- case EACCES:
+- case ENAMETOOLONG:
+- break;
+- default:
+- /* Any negative value but -1 will inhibit
+- * futher path search. */
+- return -2;
+- }
+- }
+- s += l;
+- }
+-}
+-
+-static int fixup_rpath(struct dso *p, char *buf, size_t buf_size)
+-{
+- size_t n, l;
+- const char *s, *t, *origin;
+- char *d;
+- if (p->rpath || !p->rpath_orig) return 0;
+- if (!strchr(p->rpath_orig, '$')) {
+- p->rpath = p->rpath_orig;
+- return 0;
+- }
+- n = 0;
+- s = p->rpath_orig;
+- while ((t=strchr(s, '$'))) {
+- if (strncmp(t, "$ORIGIN", 7) && strncmp(t, "${ORIGIN}", 9))
+- return 0;
+- s = t+1;
+- n++;
+- }
+- if (n > SSIZE_MAX/PATH_MAX) return 0;
+-
+- if (p->kernel_mapped) {
+- /* $ORIGIN searches cannot be performed for the main program
+- * when it is suid/sgid/AT_SECURE. This is because the
+- * pathname is under the control of the caller of execve.
+- * For libraries, however, $ORIGIN can be processed safely
+- * since the library's pathname came from a trusted source
+- * (either system paths or a call to dlopen). */
+- if (libc.secure)
+- return 0;
+- l = readlink("/proc/self/exe", buf, buf_size);
+- if (l == -1) switch (errno) {
+- case ENOENT:
+- case ENOTDIR:
+- case EACCES:
+- break;
+- default:
+- return -1;
+- }
+- if (l >= buf_size)
+- return 0;
+- buf[l] = 0;
+- origin = buf;
+- } else {
+- origin = p->name;
+- }
+- t = strrchr(origin, '/');
+- l = t ? t-origin : 0;
+- p->rpath = malloc(strlen(p->rpath_orig) + n*l + 1);
+- if (!p->rpath) return -1;
+-
+- d = p->rpath;
+- s = p->rpath_orig;
+- while ((t=strchr(s, '$'))) {
+- memcpy(d, s, t-s);
+- d += t-s;
+- memcpy(d, origin, l);
+- d += l;
+- /* It was determined previously that the '$' is followed
+- * either by "ORIGIN" or "{ORIGIN}". */
+- s = t + 7 + 2*(t[1]=='{');
+- }
+- strcpy(d, s);
+- return 0;
+-}
+-
+-static void decode_dyn(struct dso *p)
+-{
+- size_t dyn[DYN_CNT];
+- decode_vec(p->dynv, dyn, DYN_CNT);
+- p->syms = laddr(p, dyn[DT_SYMTAB]);
+- p->strings = laddr(p, dyn[DT_STRTAB]);
+- if (dyn[0]&(1<<DT_HASH))
+- p->hashtab = laddr(p, dyn[DT_HASH]);
+- if (dyn[0]&(1<<DT_RPATH))
+- p->rpath_orig = p->strings + dyn[DT_RPATH];
+- if (dyn[0]&(1<<DT_RUNPATH))
+- p->rpath_orig = p->strings + dyn[DT_RUNPATH];
+- if (dyn[0]&(1<<DT_PLTGOT))
+- p->got = laddr(p, dyn[DT_PLTGOT]);
+- if (search_vec(p->dynv, dyn, DT_GNU_HASH))
+- p->ghashtab = laddr(p, *dyn);
+- if (search_vec(p->dynv, dyn, DT_VERSYM))
+- p->versym = laddr(p, *dyn);
+-}
+-
+-static size_t count_syms(struct dso *p)
+-{
+- if (p->hashtab) return p->hashtab[1];
+-
+- size_t nsym, i;
+- uint32_t *buckets = p->ghashtab + 4 + (p->ghashtab[2]*sizeof(size_t)/4);
+- uint32_t *hashval;
+- for (i = nsym = 0; i < p->ghashtab[0]; i++) {
+- if (buckets[i] > nsym)
+- nsym = buckets[i];
+- }
+- if (nsym) {
+- hashval = buckets + p->ghashtab[0] + (nsym - p->ghashtab[1]);
+- do nsym++;
+- while (!(*hashval++ & 1));
+- }
+- return nsym;
+-}
+-
+-static void *dl_mmap(size_t n)
+-{
+- void *p;
+- int prot = PROT_READ|PROT_WRITE, flags = MAP_ANONYMOUS|MAP_PRIVATE;
+-#ifdef SYS_mmap2
+- p = (void *)__syscall(SYS_mmap2, 0, n, prot, flags, -1, 0);
+-#else
+- p = (void *)__syscall(SYS_mmap, 0, n, prot, flags, -1, 0);
+-#endif
+- return p == MAP_FAILED ? 0 : p;
+-}
+-
+-static void makefuncdescs(struct dso *p)
+-{
+- static int self_done;
+- size_t nsym = count_syms(p);
+- size_t i, size = nsym * sizeof(*p->funcdescs);
+-
+- if (!self_done) {
+- p->funcdescs = dl_mmap(size);
+- self_done = 1;
+- } else {
+- p->funcdescs = malloc(size);
+- }
+- if (!p->funcdescs) {
+- if (!runtime) a_crash();
+- error("Error allocating function descriptors for %s", p->name);
+- longjmp(*rtld_fail, 1);
+- }
+- for (i=0; i<nsym; i++) {
+- if ((p->syms[i].st_info&0xf)==STT_FUNC && p->syms[i].st_shndx) {
+- p->funcdescs[i].addr = laddr(p, p->syms[i].st_value);
+- p->funcdescs[i].got = p->got;
+- } else {
+- p->funcdescs[i].addr = 0;
+- p->funcdescs[i].got = 0;
+- }
+- }
+-}
+-
+-static struct dso *load_library(const char *name, struct dso *needed_by)
+-{
+- char buf[2*NAME_MAX+2];
+- const char *pathname;
+- unsigned char *map;
+- struct dso *p, temp_dso = {0};
+- int fd;
+- struct stat st;
+- size_t alloc_size;
+- int n_th = 0;
+- int is_self = 0;
+-
+- if (!*name) {
+- errno = EINVAL;
+- return 0;
+- }
+-
+- /* Catch and block attempts to reload the implementation itself */
+- if (name[0]=='l' && name[1]=='i' && name[2]=='b') {
+- static const char *rp, reserved[] =
+- "c\0pthread\0rt\0m\0dl\0util\0xnet\0";
+- char *z = strchr(name, '.');
+- if (z) {
+- size_t l = z-name;
+- for (rp=reserved; *rp && strncmp(name+3, rp, l-3); rp+=strlen(rp)+1);
+- if (*rp) {
+- if (ldd_mode) {
+- /* Track which names have been resolved
+- * and only report each one once. */
+- static unsigned reported;
+- unsigned mask = 1U<<(rp-reserved);
+- if (!(reported & mask)) {
+- reported |= mask;
+- dprintf(1, "\t%s => %s (%p)\n",
+- name, ldso.name,
+- ldso.base);
+- }
+- }
+- is_self = 1;
+- }
+- }
+- }
+- if (!strcmp(name, ldso.name)) is_self = 1;
+- if (is_self) {
+- if (!ldso.prev) {
+- tail->next = &ldso;
+- ldso.prev = tail;
+- tail = ldso.next ? ldso.next : &ldso;
+- }
+- return &ldso;
+- }
+- if (strchr(name, '/')) {
+- pathname = name;
+- fd = open(name, O_RDONLY|O_CLOEXEC);
+- } else {
+- /* Search for the name to see if it's already loaded */
+- for (p=head->next; p; p=p->next) {
+- if (p->shortname && !strcmp(p->shortname, name)) {
+- p->refcnt++;
+- return p;
+- }
+- }
+- if (strlen(name) > NAME_MAX) return 0;
+- fd = -1;
+- if (env_path) fd = path_open(name, env_path, buf, sizeof buf);
+- for (p=needed_by; fd == -1 && p; p=p->needed_by) {
+- if (fixup_rpath(p, buf, sizeof buf) < 0)
+- fd = -2; /* Inhibit further search. */
+- if (p->rpath)
+- fd = path_open(name, p->rpath, buf, sizeof buf);
+- }
+- if (fd == -1) {
+- if (!sys_path) {
+- char *prefix = 0;
+- size_t prefix_len;
+- if (ldso.name[0]=='/') {
+- char *s, *t, *z;
+- for (s=t=z=ldso.name; *s; s++)
+- if (*s=='/') z=t, t=s;
+- prefix_len = z-ldso.name;
+- if (prefix_len < PATH_MAX)
+- prefix = ldso.name;
+- }
+- if (!prefix) {
+- prefix = "";
+- prefix_len = 0;
+- }
+- char etc_ldso_path[prefix_len + 1
+- + sizeof "/etc/ld-musl-" LDSO_ARCH ".path"];
+- snprintf(etc_ldso_path, sizeof etc_ldso_path,
+- "%.*s/etc/ld-musl-" LDSO_ARCH ".path",
+- (int)prefix_len, prefix);
+- FILE *f = fopen(etc_ldso_path, "rbe");
+- if (f) {
+- if (getdelim(&sys_path, (size_t[1]){0}, 0, f) <= 0) {
+- free(sys_path);
+- sys_path = "";
+- }
+- fclose(f);
+- } else if (errno != ENOENT) {
+- sys_path = "";
+- }
+- }
+- if (!sys_path) sys_path = "/lib:/usr/local/lib:/usr/lib";
+- fd = path_open(name, sys_path, buf, sizeof buf);
+- }
+- pathname = buf;
+- }
+- if (fd < 0) return 0;
+- if (fstat(fd, &st) < 0) {
+- close(fd);
+- return 0;
+- }
+- for (p=head->next; p; p=p->next) {
+- if (p->dev == st.st_dev && p->ino == st.st_ino) {
+- /* If this library was previously loaded with a
+- * pathname but a search found the same inode,
+- * setup its shortname so it can be found by name. */
+- if (!p->shortname && pathname != name)
+- p->shortname = strrchr(p->name, '/')+1;
+- close(fd);
+- p->refcnt++;
+- return p;
+- }
+- }
+- map = noload ? 0 : map_library(fd, &temp_dso);
+- close(fd);
+- if (!map) return 0;
+-
+- /* Allocate storage for the new DSO. When there is TLS, this
+- * storage must include a reservation for all pre-existing
+- * threads to obtain copies of both the new TLS, and an
+- * extended DTV capable of storing an additional slot for
+- * the newly-loaded DSO. */
+- alloc_size = sizeof *p + strlen(pathname) + 1;
+- if (runtime && temp_dso.tls_image) {
+- size_t per_th = temp_dso.tls_size + temp_dso.tls_align
+- + sizeof(void *) * (tls_cnt+3);
+- n_th = libc.threads_minus_1 + 1;
+- if (n_th > SSIZE_MAX / per_th) alloc_size = SIZE_MAX;
+- else alloc_size += n_th * per_th;
+- }
+- p = calloc(1, alloc_size);
+- if (!p) {
+- unmap_library(&temp_dso);
+- return 0;
+- }
+- memcpy(p, &temp_dso, sizeof temp_dso);
+- decode_dyn(p);
+- p->dev = st.st_dev;
+- p->ino = st.st_ino;
+- p->refcnt = 1;
+- p->needed_by = needed_by;
+- p->name = p->buf;
+- strcpy(p->name, pathname);
+- /* Add a shortname only if name arg was not an explicit pathname. */
+- if (pathname != name) p->shortname = strrchr(p->name, '/')+1;
+- if (p->tls_image) {
+- p->tls_id = ++tls_cnt;
+- tls_align = MAXP2(tls_align, p->tls_align);
+-#ifdef TLS_ABOVE_TP
+- p->tls_offset = tls_offset + ( (tls_align-1) &
+- -(tls_offset + (uintptr_t)p->tls_image) );
+- tls_offset += p->tls_size;
+-#else
+- tls_offset += p->tls_size + p->tls_align - 1;
+- tls_offset -= (tls_offset + (uintptr_t)p->tls_image)
+- & (p->tls_align-1);
+- p->tls_offset = tls_offset;
+-#endif
+- p->new_dtv = (void *)(-sizeof(size_t) &
+- (uintptr_t)(p->name+strlen(p->name)+sizeof(size_t)));
+- p->new_tls = (void *)(p->new_dtv + n_th*(tls_cnt+1));
+- }
+-
+- tail->next = p;
+- p->prev = tail;
+- tail = p;
+-
+- if (DL_FDPIC) makefuncdescs(p);
+-
+- if (ldd_mode) dprintf(1, "\t%s => %s (%p)\n", name, pathname, p->base);
+-
+- return p;
+-}
+-
+-static void load_deps(struct dso *p)
+-{
+- size_t i, ndeps=0;
+- struct dso ***deps = &p->deps, **tmp, *dep;
+- for (; p; p=p->next) {
+- for (i=0; p->dynv[i]; i+=2) {
+- if (p->dynv[i] != DT_NEEDED) continue;
+- dep = load_library(p->strings + p->dynv[i+1], p);
+- if (!dep) {
+- error("Error loading shared library %s: %m (needed by %s)",
+- p->strings + p->dynv[i+1], p->name);
+- if (runtime) longjmp(*rtld_fail, 1);
+- continue;
+- }
+- if (runtime) {
+- tmp = realloc(*deps, sizeof(*tmp)*(ndeps+2));
+- if (!tmp) longjmp(*rtld_fail, 1);
+- tmp[ndeps++] = dep;
+- tmp[ndeps] = 0;
+- *deps = tmp;
+- }
+- }
+- }
+-}
+-
+-static void load_preload(char *s)
+-{
+- int tmp;
+- char *z;
+- for (z=s; *z; s=z) {
+- for ( ; *s && (isspace(*s) || *s==':'); s++);
+- for (z=s; *z && !isspace(*z) && *z!=':'; z++);
+- tmp = *z;
+- *z = 0;
+- load_library(s, 0);
+- *z = tmp;
+- }
+-}
+-
+-static void make_global(struct dso *p)
+-{
+- for (; p; p=p->next) p->global = 1;
+-}
+-
+-static void do_mips_relocs(struct dso *p, size_t *got)
+-{
+- size_t i, j, rel[2];
+- unsigned char *base = p->base;
+- i=0; search_vec(p->dynv, &i, DT_MIPS_LOCAL_GOTNO);
+- if (p==&ldso) {
+- got += i;
+- } else {
+- while (i--) *got++ += (size_t)base;
+- }
+- j=0; search_vec(p->dynv, &j, DT_MIPS_GOTSYM);
+- i=0; search_vec(p->dynv, &i, DT_MIPS_SYMTABNO);
+- Sym *sym = p->syms + j;
+- rel[0] = (unsigned char *)got - base;
+- for (i-=j; i; i--, sym++, rel[0]+=sizeof(size_t)) {
+- rel[1] = sym-p->syms << 8 | R_MIPS_JUMP_SLOT;
+- do_relocs(p, rel, sizeof rel, 2);
+- }
+-}
+-
+-static void reloc_all(struct dso *p)
+-{
+- size_t dyn[DYN_CNT];
+- for (; p; p=p->next) {
+- if (p->relocated) continue;
+- decode_vec(p->dynv, dyn, DYN_CNT);
+- if (NEED_MIPS_GOT_RELOCS)
+- do_mips_relocs(p, laddr(p, dyn[DT_PLTGOT]));
+- do_relocs(p, laddr(p, dyn[DT_JMPREL]), dyn[DT_PLTRELSZ],
+- 2+(dyn[DT_PLTREL]==DT_RELA));
+- do_relocs(p, laddr(p, dyn[DT_REL]), dyn[DT_RELSZ], 2);
+- do_relocs(p, laddr(p, dyn[DT_RELA]), dyn[DT_RELASZ], 3);
+-
+- if (head != &ldso && p->relro_start != p->relro_end &&
+- mprotect(laddr(p, p->relro_start), p->relro_end-p->relro_start, PROT_READ)
+- && errno != ENOSYS) {
+- error("Error relocating %s: RELRO protection failed: %m",
+- p->name);
+- if (runtime) longjmp(*rtld_fail, 1);
+- }
+-
+- p->relocated = 1;
+- }
+-}
+-
+-static void kernel_mapped_dso(struct dso *p)
+-{
+- size_t min_addr = -1, max_addr = 0, cnt;
+- Phdr *ph = p->phdr;
+- for (cnt = p->phnum; cnt--; ph = (void *)((char *)ph + p->phentsize)) {
+- if (ph->p_type == PT_DYNAMIC) {
+- p->dynv = laddr(p, ph->p_vaddr);
+- } else if (ph->p_type == PT_GNU_RELRO) {
+- p->relro_start = ph->p_vaddr & -PAGE_SIZE;
+- p->relro_end = (ph->p_vaddr + ph->p_memsz) & -PAGE_SIZE;
+- }
+- if (ph->p_type != PT_LOAD) continue;
+- if (ph->p_vaddr < min_addr)
+- min_addr = ph->p_vaddr;
+- if (ph->p_vaddr+ph->p_memsz > max_addr)
+- max_addr = ph->p_vaddr+ph->p_memsz;
+- }
+- min_addr &= -PAGE_SIZE;
+- max_addr = (max_addr + PAGE_SIZE-1) & -PAGE_SIZE;
+- p->map = p->base + min_addr;
+- p->map_len = max_addr - min_addr;
+- p->kernel_mapped = 1;
+-}
+-
+-static void do_fini()
+-{
+- struct dso *p;
+- size_t dyn[DYN_CNT];
+- for (p=fini_head; p; p=p->fini_next) {
+- if (!p->constructed) continue;
+- decode_vec(p->dynv, dyn, DYN_CNT);
+- if (dyn[0] & (1<<DT_FINI_ARRAY)) {
+- size_t n = dyn[DT_FINI_ARRAYSZ]/sizeof(size_t);
+- size_t *fn = (size_t *)laddr(p, dyn[DT_FINI_ARRAY])+n;
+- while (n--) ((void (*)(void))*--fn)();
+- }
+-#ifndef NO_LEGACY_INITFINI
+- if ((dyn[0] & (1<<DT_FINI)) && dyn[DT_FINI])
+- fpaddr(p, dyn[DT_FINI])();
+-#endif
+- }
+-}
+-
+-static void do_init_fini(struct dso *p)
+-{
+- size_t dyn[DYN_CNT];
+- int need_locking = libc.threads_minus_1;
+- /* Allow recursive calls that arise when a library calls
+- * dlopen from one of its constructors, but block any
+- * other threads until all ctors have finished. */
+- if (need_locking) pthread_mutex_lock(&init_fini_lock);
+- for (; p; p=p->prev) {
+- if (p->constructed) continue;
+- p->constructed = 1;
+- decode_vec(p->dynv, dyn, DYN_CNT);
+- if (dyn[0] & ((1<<DT_FINI) | (1<<DT_FINI_ARRAY))) {
+- p->fini_next = fini_head;
+- fini_head = p;
+- }
+-#ifndef NO_LEGACY_INITFINI
+- if ((dyn[0] & (1<<DT_INIT)) && dyn[DT_INIT])
+- fpaddr(p, dyn[DT_INIT])();
+-#endif
+- if (dyn[0] & (1<<DT_INIT_ARRAY)) {
+- size_t n = dyn[DT_INIT_ARRAYSZ]/sizeof(size_t);
+- size_t *fn = laddr(p, dyn[DT_INIT_ARRAY]);
+- while (n--) ((void (*)(void))*fn++)();
+- }
+- if (!need_locking && libc.threads_minus_1) {
+- need_locking = 1;
+- pthread_mutex_lock(&init_fini_lock);
+- }
+- }
+- if (need_locking) pthread_mutex_unlock(&init_fini_lock);
+-}
+-
+-void __libc_start_init(void)
+-{
+- do_init_fini(tail);
+-}
+-
+-static void dl_debug_state(void)
+-{
+-}
+-
+-weak_alias(dl_debug_state, _dl_debug_state);
+-
+-void __reset_tls()
+-{
+- pthread_t self = __pthread_self();
+- struct dso *p;
+- for (p=head; p; p=p->next) {
+- if (!p->tls_id || !self->dtv[p->tls_id]) continue;
+- memcpy(self->dtv[p->tls_id], p->tls_image, p->tls_len);
+- memset((char *)self->dtv[p->tls_id]+p->tls_len, 0,
+- p->tls_size - p->tls_len);
+- if (p->tls_id == (size_t)self->dtv[0]) break;
+- }
+-}
+-
+-void *__copy_tls(unsigned char *mem)
+-{
+- pthread_t td;
+- struct dso *p;
+- void **dtv;
+-
+-#ifdef TLS_ABOVE_TP
+- dtv = (void **)(mem + libc.tls_size) - (tls_cnt + 1);
+-
+- mem += -((uintptr_t)mem + sizeof(struct pthread)) & (tls_align-1);
+- td = (pthread_t)mem;
+- mem += sizeof(struct pthread);
+-
+- for (p=head; p; p=p->next) {
+- if (!p->tls_id) continue;
+- dtv[p->tls_id] = mem + p->tls_offset;
+- memcpy(dtv[p->tls_id], p->tls_image, p->tls_len);
+- }
+-#else
+- dtv = (void **)mem;
+-
+- mem += libc.tls_size - sizeof(struct pthread);
+- mem -= (uintptr_t)mem & (tls_align-1);
+- td = (pthread_t)mem;
+-
+- for (p=head; p; p=p->next) {
+- if (!p->tls_id) continue;
+- dtv[p->tls_id] = mem - p->tls_offset;
+- memcpy(dtv[p->tls_id], p->tls_image, p->tls_len);
+- }
+-#endif
+- dtv[0] = (void *)tls_cnt;
+- td->dtv = td->dtv_copy = dtv;
+- return td;
+-}
+-
+-__attribute__((__visibility__("hidden")))
+-void *__tls_get_new(size_t *v)
+-{
+- pthread_t self = __pthread_self();
+-
+- /* Block signals to make accessing new TLS async-signal-safe */
+- sigset_t set;
+- __block_all_sigs(&set);
+- if (v[0]<=(size_t)self->dtv[0]) {
+- __restore_sigs(&set);
+- return (char *)self->dtv[v[0]]+v[1]+DTP_OFFSET;
+- }
+-
+- /* This is safe without any locks held because, if the caller
+- * is able to request the Nth entry of the DTV, the DSO list
+- * must be valid at least that far out and it was synchronized
+- * at program startup or by an already-completed call to dlopen. */
+- struct dso *p;
+- for (p=head; p->tls_id != v[0]; p=p->next);
+-
+- /* Get new DTV space from new DSO if needed */
+- if (v[0] > (size_t)self->dtv[0]) {
+- void **newdtv = p->new_dtv +
+- (v[0]+1)*sizeof(void *)*a_fetch_add(&p->new_dtv_idx,1);
+- memcpy(newdtv, self->dtv,
+- ((size_t)self->dtv[0]+1) * sizeof(void *));
+- newdtv[0] = (void *)v[0];
+- self->dtv = self->dtv_copy = newdtv;
+- }
+-
+- /* Get new TLS memory from all new DSOs up to the requested one */
+- unsigned char *mem;
+- for (p=head; ; p=p->next) {
+- if (!p->tls_id || self->dtv[p->tls_id]) continue;
+- mem = p->new_tls + (p->tls_size + p->tls_align)
+- * a_fetch_add(&p->new_tls_idx,1);
+- mem += ((uintptr_t)p->tls_image - (uintptr_t)mem)
+- & (p->tls_align-1);
+- self->dtv[p->tls_id] = mem;
+- memcpy(mem, p->tls_image, p->tls_len);
+- if (p->tls_id == v[0]) break;
+- }
+- __restore_sigs(&set);
+- return mem + v[1] + DTP_OFFSET;
+-}
+-
+-static void update_tls_size()
+-{
+- libc.tls_size = ALIGN(
+- (1+tls_cnt) * sizeof(void *) +
+- tls_offset +
+- sizeof(struct pthread) +
+- tls_align * 2,
+- tls_align);
+-}
+-
+-/* Stage 1 of the dynamic linker is defined in dlstart.c. It calls the
+- * following stage 2 and stage 3 functions via primitive symbolic lookup
+- * since it does not have access to their addresses to begin with. */
+-
+-/* Stage 2 of the dynamic linker is called after relative relocations
+- * have been processed. It can make function calls to static functions
+- * and access string literals and static data, but cannot use extern
+- * symbols. Its job is to perform symbolic relocations on the dynamic
+- * linker itself, but some of the relocations performed may need to be
+- * replaced later due to copy relocations in the main program. */
+-
+-__attribute__((__visibility__("hidden")))
+-void __dls2(unsigned char *base, size_t *sp)
+-{
+- if (DL_FDPIC) {
+- void *p1 = (void *)sp[-2];
+- void *p2 = (void *)sp[-1];
+- if (!p1) {
+- size_t *auxv, aux[AUX_CNT];
+- for (auxv=sp+1+*sp+1; *auxv; auxv++); auxv++;
+- decode_vec(auxv, aux, AUX_CNT);
+- if (aux[AT_BASE]) ldso.base = (void *)aux[AT_BASE];
+- else ldso.base = (void *)(aux[AT_PHDR] & -4096);
+- }
+- app_loadmap = p2 ? p1 : 0;
+- ldso.loadmap = p2 ? p2 : p1;
+- ldso.base = laddr(&ldso, 0);
+- } else {
+- ldso.base = base;
+- }
+- Ehdr *ehdr = (void *)ldso.base;
+- ldso.name = ldso.shortname = "libc.so";
+- ldso.global = 1;
+- ldso.phnum = ehdr->e_phnum;
+- ldso.phdr = laddr(&ldso, ehdr->e_phoff);
+- ldso.phentsize = ehdr->e_phentsize;
+- kernel_mapped_dso(&ldso);
+- decode_dyn(&ldso);
+-
+- if (DL_FDPIC) makefuncdescs(&ldso);
+-
+- /* Prepare storage for to save clobbered REL addends so they
+- * can be reused in stage 3. There should be very few. If
+- * something goes wrong and there are a huge number, abort
+- * instead of risking stack overflow. */
+- size_t dyn[DYN_CNT];
+- decode_vec(ldso.dynv, dyn, DYN_CNT);
+- size_t *rel = laddr(&ldso, dyn[DT_REL]);
+- size_t rel_size = dyn[DT_RELSZ];
+- size_t symbolic_rel_cnt = 0;
+- apply_addends_to = rel;
+- for (; rel_size; rel+=2, rel_size-=2*sizeof(size_t))
+- if (!IS_RELATIVE(rel[1], ldso.syms)) symbolic_rel_cnt++;
+- if (symbolic_rel_cnt >= ADDEND_LIMIT) a_crash();
+- size_t addends[symbolic_rel_cnt+1];
+- saved_addends = addends;
+-
+- head = &ldso;
+- reloc_all(&ldso);
+-
+- ldso.relocated = 0;
+-
+- /* Call dynamic linker stage-3, __dls3, looking it up
+- * symbolically as a barrier against moving the address
+- * load across the above relocation processing. */
+- struct symdef dls3_def = find_sym(&ldso, "__dls3", 0);
+- if (DL_FDPIC) ((stage3_func)&ldso.funcdescs[dls3_def.sym-ldso.syms])(sp);
+- else ((stage3_func)laddr(&ldso, dls3_def.sym->st_value))(sp);
+-}
+-
+-/* Stage 3 of the dynamic linker is called with the dynamic linker/libc
+- * fully functional. Its job is to load (if not already loaded) and
+- * process dependencies and relocations for the main application and
+- * transfer control to its entry point. */
+-
+-_Noreturn void __dls3(size_t *sp)
+-{
+- static struct dso app, vdso;
+- size_t aux[AUX_CNT], *auxv;
+- size_t i;
+- char *env_preload=0;
+- size_t vdso_base;
+- int argc = *sp;
+- char **argv = (void *)(sp+1);
+- char **argv_orig = argv;
+- char **envp = argv+argc+1;
+-
+- /* Find aux vector just past environ[] and use it to initialize
+- * global data that may be needed before we can make syscalls. */
+- __environ = envp;
+- for (i=argc+1; argv[i]; i++);
+- libc.auxv = auxv = (void *)(argv+i+1);
+- decode_vec(auxv, aux, AUX_CNT);
+- __hwcap = aux[AT_HWCAP];
+- libc.page_size = aux[AT_PAGESZ];
+- libc.secure = ((aux[0]&0x7800)!=0x7800 || aux[AT_UID]!=aux[AT_EUID]
+- || aux[AT_GID]!=aux[AT_EGID] || aux[AT_SECURE]);
+-
+- /* Setup early thread pointer in builtin_tls for ldso/libc itself to
+- * use during dynamic linking. If possible it will also serve as the
+- * thread pointer at runtime. */
+- libc.tls_size = sizeof builtin_tls;
+- if (__init_tp(__copy_tls((void *)builtin_tls)) < 0) {
+- a_crash();
+- }
+-
+- /* Only trust user/env if kernel says we're not suid/sgid */
+- if (!libc.secure) {
+- env_path = getenv("LD_LIBRARY_PATH");
+- env_preload = getenv("LD_PRELOAD");
+- }
+-
+- /* If the main program was already loaded by the kernel,
+- * AT_PHDR will point to some location other than the dynamic
+- * linker's program headers. */
+- if (aux[AT_PHDR] != (size_t)ldso.phdr) {
+- size_t interp_off = 0;
+- size_t tls_image = 0;
+- /* Find load address of the main program, via AT_PHDR vs PT_PHDR. */
+- Phdr *phdr = app.phdr = (void *)aux[AT_PHDR];
+- app.phnum = aux[AT_PHNUM];
+- app.phentsize = aux[AT_PHENT];
+- for (i=aux[AT_PHNUM]; i; i--, phdr=(void *)((char *)phdr + aux[AT_PHENT])) {
+- if (phdr->p_type == PT_PHDR)
+- app.base = (void *)(aux[AT_PHDR] - phdr->p_vaddr);
+- else if (phdr->p_type == PT_INTERP)
+- interp_off = (size_t)phdr->p_vaddr;
+- else if (phdr->p_type == PT_TLS) {
+- tls_image = phdr->p_vaddr;
+- app.tls_len = phdr->p_filesz;
+- app.tls_size = phdr->p_memsz;
+- app.tls_align = phdr->p_align;
+- }
+- }
+- if (DL_FDPIC) app.loadmap = app_loadmap;
+- if (app.tls_size) app.tls_image = laddr(&app, tls_image);
+- if (interp_off) ldso.name = laddr(&app, interp_off);
+- if ((aux[0] & (1UL<<AT_EXECFN))
+- && strncmp((char *)aux[AT_EXECFN], "/proc/", 6))
+- app.name = (char *)aux[AT_EXECFN];
+- else
+- app.name = argv[0];
+- kernel_mapped_dso(&app);
+- } else {
+- int fd;
+- char *ldname = argv[0];
+- size_t l = strlen(ldname);
+- if (l >= 3 && !strcmp(ldname+l-3, "ldd")) ldd_mode = 1;
+- argv++;
+- while (argv[0] && argv[0][0]=='-' && argv[0][1]=='-') {
+- char *opt = argv[0]+2;
+- *argv++ = (void *)-1;
+- if (!*opt) {
+- break;
+- } else if (!memcmp(opt, "list", 5)) {
+- ldd_mode = 1;
+- } else if (!memcmp(opt, "library-path", 12)) {
+- if (opt[12]=='=') env_path = opt+13;
+- else if (opt[12]) *argv = 0;
+- else if (*argv) env_path = *argv++;
+- } else if (!memcmp(opt, "preload", 7)) {
+- if (opt[7]=='=') env_preload = opt+8;
+- else if (opt[7]) *argv = 0;
+- else if (*argv) env_preload = *argv++;
+- } else {
+- argv[0] = 0;
+- }
+- }
+- argv[-1] = (void *)(argc - (argv-argv_orig));
+- if (!argv[0]) {
+- dprintf(2, "musl libc\n"
+- "Version %s\n"
+- "Dynamic Program Loader\n"
+- "Usage: %s [options] [--] pathname%s\n",
+- __libc_get_version(), ldname,
+- ldd_mode ? "" : " [args]");
+- _exit(1);
+- }
+- fd = open(argv[0], O_RDONLY);
+- if (fd < 0) {
+- dprintf(2, "%s: cannot load %s: %s\n", ldname, argv[0], strerror(errno));
+- _exit(1);
+- }
+- runtime = 1;
+- Ehdr *ehdr = (void *)map_library(fd, &app);
+- if (!ehdr) {
+- dprintf(2, "%s: %s: Not a valid dynamic program\n", ldname, argv[0]);
+- _exit(1);
+- }
+- runtime = 0;
+- close(fd);
+- ldso.name = ldname;
+- app.name = argv[0];
+- aux[AT_ENTRY] = (size_t)laddr(&app, ehdr->e_entry);
+- /* Find the name that would have been used for the dynamic
+- * linker had ldd not taken its place. */
+- if (ldd_mode) {
+- for (i=0; i<app.phnum; i++) {
+- if (app.phdr[i].p_type == PT_INTERP)
+- ldso.name = laddr(&app, app.phdr[i].p_vaddr);
+- }
+- dprintf(1, "\t%s (%p)\n", ldso.name, ldso.base);
+- }
+- }
+- if (app.tls_size) {
+- app.tls_id = tls_cnt = 1;
+-#ifdef TLS_ABOVE_TP
+- app.tls_offset = 0;
+- tls_offset = app.tls_size
+- + ( -((uintptr_t)app.tls_image + app.tls_size)
+- & (app.tls_align-1) );
+-#else
+- tls_offset = app.tls_offset = app.tls_size
+- + ( -((uintptr_t)app.tls_image + app.tls_size)
+- & (app.tls_align-1) );
+-#endif
+- tls_align = MAXP2(tls_align, app.tls_align);
+- }
+- app.global = 1;
+- decode_dyn(&app);
+- if (DL_FDPIC) {
+- makefuncdescs(&app);
+- if (!app.loadmap) {
+- app.loadmap = (void *)&app_dummy_loadmap;
+- app.loadmap->nsegs = 1;
+- app.loadmap->segs[0].addr = (size_t)app.map;
+- app.loadmap->segs[0].p_vaddr = (size_t)app.map
+- - (size_t)app.base;
+- app.loadmap->segs[0].p_memsz = app.map_len;
+- }
+- argv[-3] = (void *)app.loadmap;
+- }
+-
+- /* Attach to vdso, if provided by the kernel */
+- if (search_vec(auxv, &vdso_base, AT_SYSINFO_EHDR)) {
+- Ehdr *ehdr = (void *)vdso_base;
+- Phdr *phdr = vdso.phdr = (void *)(vdso_base + ehdr->e_phoff);
+- vdso.phnum = ehdr->e_phnum;
+- vdso.phentsize = ehdr->e_phentsize;
+- for (i=ehdr->e_phnum; i; i--, phdr=(void *)((char *)phdr + ehdr->e_phentsize)) {
+- if (phdr->p_type == PT_DYNAMIC)
+- vdso.dynv = (void *)(vdso_base + phdr->p_offset);
+- if (phdr->p_type == PT_LOAD)
+- vdso.base = (void *)(vdso_base - phdr->p_vaddr + phdr->p_offset);
+- }
+- vdso.name = "";
+- vdso.shortname = "linux-gate.so.1";
+- vdso.global = 1;
+- vdso.relocated = 1;
+- decode_dyn(&vdso);
+- vdso.prev = &ldso;
+- ldso.next = &vdso;
+- }
+-
+- /* Initial dso chain consists only of the app. */
+- head = tail = &app;
+-
+- /* Donate unused parts of app and library mapping to malloc */
+- reclaim_gaps(&app);
+- reclaim_gaps(&ldso);
+-
+- /* Load preload/needed libraries, add their symbols to the global
+- * namespace, and perform all remaining relocations. */
+- if (env_preload) load_preload(env_preload);
+- load_deps(&app);
+- make_global(&app);
+-
+-#ifndef DYNAMIC_IS_RO
+- for (i=0; app.dynv[i]; i+=2)
+- if (app.dynv[i]==DT_DEBUG)
+- app.dynv[i+1] = (size_t)&debug;
+-#endif
+-
+- /* The main program must be relocated LAST since it may contin
+- * copy relocations which depend on libraries' relocations. */
+- reloc_all(app.next);
+- reloc_all(&app);
+-
+- update_tls_size();
+- if (libc.tls_size > sizeof builtin_tls || tls_align > MIN_TLS_ALIGN) {
+- void *initial_tls = calloc(libc.tls_size, 1);
+- if (!initial_tls) {
+- dprintf(2, "%s: Error getting %zu bytes thread-local storage: %m\n",
+- argv[0], libc.tls_size);
+- _exit(127);
+- }
+- if (__init_tp(__copy_tls(initial_tls)) < 0) {
+- a_crash();
+- }
+- } else {
+- size_t tmp_tls_size = libc.tls_size;
+- pthread_t self = __pthread_self();
+- /* Temporarily set the tls size to the full size of
+- * builtin_tls so that __copy_tls will use the same layout
+- * as it did for before. Then check, just to be safe. */
+- libc.tls_size = sizeof builtin_tls;
+- if (__copy_tls((void*)builtin_tls) != self) a_crash();
+- libc.tls_size = tmp_tls_size;
+- }
+- static_tls_cnt = tls_cnt;
+-
+- if (ldso_fail) _exit(127);
+- if (ldd_mode) _exit(0);
+-
+- /* Switch to runtime mode: any further failures in the dynamic
+- * linker are a reportable failure rather than a fatal startup
+- * error. */
+- runtime = 1;
+-
+- debug.ver = 1;
+- debug.bp = dl_debug_state;
+- debug.head = head;
+- debug.base = ldso.base;
+- debug.state = 0;
+- _dl_debug_state();
+-
+- __init_libc(envp, argv[0]);
+- atexit(do_fini);
+- errno = 0;
+-
+- CRTJMP((void *)aux[AT_ENTRY], argv-1);
+- for(;;);
+-}
+-
+-void *dlopen(const char *file, int mode)
+-{
+- struct dso *volatile p, *orig_tail, *next;
+- size_t orig_tls_cnt, orig_tls_offset, orig_tls_align;
+- size_t i;
+- int cs;
+- jmp_buf jb;
+-
+- if (!file) return head;
+-
+- pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
+- pthread_rwlock_wrlock(&lock);
+- __inhibit_ptc();
+-
+- p = 0;
+- orig_tls_cnt = tls_cnt;
+- orig_tls_offset = tls_offset;
+- orig_tls_align = tls_align;
+- orig_tail = tail;
+- noload = mode & RTLD_NOLOAD;
+-
+- rtld_fail = &jb;
+- if (setjmp(*rtld_fail)) {
+- /* Clean up anything new that was (partially) loaded */
+- if (p && p->deps) for (i=0; p->deps[i]; i++)
+- if (p->deps[i]->global < 0)
+- p->deps[i]->global = 0;
+- for (p=orig_tail->next; p; p=next) {
+- next = p->next;
+- while (p->td_index) {
+- void *tmp = p->td_index->next;
+- free(p->td_index);
+- p->td_index = tmp;
+- }
+- free(p->funcdescs);
+- if (p->rpath != p->rpath_orig)
+- free(p->rpath);
+- free(p->deps);
+- unmap_library(p);
+- free(p);
+- }
+- tls_cnt = orig_tls_cnt;
+- tls_offset = orig_tls_offset;
+- tls_align = orig_tls_align;
+- tail = orig_tail;
+- tail->next = 0;
+- p = 0;
+- goto end;
+- } else p = load_library(file, head);
+-
+- if (!p) {
+- error(noload ?
+- "Library %s is not already loaded" :
+- "Error loading shared library %s: %m",
+- file);
+- goto end;
+- }
+-
+- /* First load handling */
+- if (!p->deps) {
+- load_deps(p);
+- if (p->deps) for (i=0; p->deps[i]; i++)
+- if (!p->deps[i]->global)
+- p->deps[i]->global = -1;
+- if (!p->global) p->global = -1;
+- reloc_all(p);
+- if (p->deps) for (i=0; p->deps[i]; i++)
+- if (p->deps[i]->global < 0)
+- p->deps[i]->global = 0;
+- if (p->global < 0) p->global = 0;
+- }
+-
+- if (mode & RTLD_GLOBAL) {
+- if (p->deps) for (i=0; p->deps[i]; i++)
+- p->deps[i]->global = 1;
+- p->global = 1;
+- }
+-
+- update_tls_size();
+- _dl_debug_state();
+- orig_tail = tail;
+-end:
+- __release_ptc();
+- if (p) gencnt++;
+- pthread_rwlock_unlock(&lock);
+- if (p) do_init_fini(orig_tail);
+- pthread_setcancelstate(cs, 0);
+- return p;
+-}
+-
+-static int invalid_dso_handle(void *h)
+-{
+- struct dso *p;
+- for (p=head; p; p=p->next) if (h==p) return 0;
+- error("Invalid library handle %p", (void *)h);
+- return 1;
+-}
+-
+-static void *addr2dso(size_t a)
+-{
+- struct dso *p;
+- size_t i;
+- if (DL_FDPIC) for (p=head; p; p=p->next) {
+- i = count_syms(p);
+- if (a-(size_t)p->funcdescs < i*sizeof(*p->funcdescs))
+- return p;
+- }
+- for (p=head; p; p=p->next) {
+- if (DL_FDPIC && p->loadmap) {
+- for (i=0; i<p->loadmap->nsegs; i++) {
+- if (a-p->loadmap->segs[i].p_vaddr
+- < p->loadmap->segs[i].p_memsz)
+- return p;
+- }
+- } else {
+- if (a-(size_t)p->map < p->map_len)
+- return p;
+- }
+- }
+- return 0;
+-}
+-
+-void *__tls_get_addr(size_t *);
+-
+-static void *do_dlsym(struct dso *p, const char *s, void *ra)
+-{
+- size_t i;
+- uint32_t h = 0, gh = 0, *ght;
+- Sym *sym;
+- if (p == head || p == RTLD_DEFAULT || p == RTLD_NEXT) {
+- if (p == RTLD_DEFAULT) {
+- p = head;
+- } else if (p == RTLD_NEXT) {
+- p = addr2dso((size_t)ra);
+- if (!p) p=head;
+- p = p->next;
+- }
+- struct symdef def = find_sym(p, s, 0);
+- if (!def.sym) goto failed;
+- if ((def.sym->st_info&0xf) == STT_TLS)
+- return __tls_get_addr((size_t []){def.dso->tls_id, def.sym->st_value});
+- if (DL_FDPIC && (def.sym->st_info&0xf) == STT_FUNC)
+- return def.dso->funcdescs + (def.sym - def.dso->syms);
+- return laddr(def.dso, def.sym->st_value);
+- }
+- if (invalid_dso_handle(p))
+- return 0;
+- if ((ght = p->ghashtab)) {
+- gh = gnu_hash(s);
+- sym = gnu_lookup(gh, ght, p, s);
+- } else {
+- h = sysv_hash(s);
+- sym = sysv_lookup(s, h, p);
+- }
+- if (sym && (sym->st_info&0xf) == STT_TLS)
+- return __tls_get_addr((size_t []){p->tls_id, sym->st_value});
+- if (DL_FDPIC && sym && sym->st_shndx && (sym->st_info&0xf) == STT_FUNC)
+- return p->funcdescs + (sym - p->syms);
+- if (sym && sym->st_value && (1<<(sym->st_info&0xf) & OK_TYPES))
+- return laddr(p, sym->st_value);
+- if (p->deps) for (i=0; p->deps[i]; i++) {
+- if ((ght = p->deps[i]->ghashtab)) {
+- if (!gh) gh = gnu_hash(s);
+- sym = gnu_lookup(gh, ght, p->deps[i], s);
+- } else {
+- if (!h) h = sysv_hash(s);
+- sym = sysv_lookup(s, h, p->deps[i]);
+- }
+- if (sym && (sym->st_info&0xf) == STT_TLS)
+- return __tls_get_addr((size_t []){p->deps[i]->tls_id, sym->st_value});
+- if (DL_FDPIC && sym && sym->st_shndx && (sym->st_info&0xf) == STT_FUNC)
+- return p->deps[i]->funcdescs + (sym - p->deps[i]->syms);
+- if (sym && sym->st_value && (1<<(sym->st_info&0xf) & OK_TYPES))
+- return laddr(p->deps[i], sym->st_value);
+- }
+-failed:
+- error("Symbol not found: %s", s);
+- return 0;
+-}
+-
+-int __dladdr(const void *addr, Dl_info *info)
+-{
+- struct dso *p;
+- Sym *sym, *bestsym;
+- uint32_t nsym;
+- char *strings;
+- void *best = 0;
+-
+- pthread_rwlock_rdlock(&lock);
+- p = addr2dso((size_t)addr);
+- pthread_rwlock_unlock(&lock);
+-
+- if (!p) return 0;
+-
+- sym = p->syms;
+- strings = p->strings;
+- nsym = count_syms(p);
+-
+- if (DL_FDPIC) {
+- size_t idx = ((size_t)addr-(size_t)p->funcdescs)
+- / sizeof(*p->funcdescs);
+- if (idx < nsym && (sym[idx].st_info&0xf) == STT_FUNC) {
+- best = p->funcdescs + idx;
+- bestsym = sym + idx;
+- }
+- }
+-
+- if (!best) for (; nsym; nsym--, sym++) {
+- if (sym->st_value
+- && (1<<(sym->st_info&0xf) & OK_TYPES)
+- && (1<<(sym->st_info>>4) & OK_BINDS)) {
+- void *symaddr = laddr(p, sym->st_value);
+- if (symaddr > addr || symaddr < best)
+- continue;
+- best = symaddr;
+- bestsym = sym;
+- if (addr == symaddr)
+- break;
+- }
+- }
+-
+- if (!best) return 0;
+-
+- if (DL_FDPIC && (bestsym->st_info&0xf) == STT_FUNC)
+- best = p->funcdescs + (bestsym - p->syms);
+-
+- info->dli_fname = p->name;
+- info->dli_fbase = p->base;
+- info->dli_sname = strings + bestsym->st_name;
+- info->dli_saddr = best;
+-
+- return 1;
+-}
+-
+-__attribute__((__visibility__("hidden")))
+-void *__dlsym(void *restrict p, const char *restrict s, void *restrict ra)
+-{
+- void *res;
+- pthread_rwlock_rdlock(&lock);
+- res = do_dlsym(p, s, ra);
+- pthread_rwlock_unlock(&lock);
+- return res;
+-}
+-
+-int dl_iterate_phdr(int(*callback)(struct dl_phdr_info *info, size_t size, void *data), void *data)
+-{
+- struct dso *current;
+- struct dl_phdr_info info;
+- int ret = 0;
+- for(current = head; current;) {
+- info.dlpi_addr = (uintptr_t)current->base;
+- info.dlpi_name = current->name;
+- info.dlpi_phdr = current->phdr;
+- info.dlpi_phnum = current->phnum;
+- info.dlpi_adds = gencnt;
+- info.dlpi_subs = 0;
+- info.dlpi_tls_modid = current->tls_id;
+- info.dlpi_tls_data = current->tls_image;
+-
+- ret = (callback)(&info, sizeof (info), data);
+-
+- if (ret != 0) break;
+-
+- pthread_rwlock_rdlock(&lock);
+- current = current->next;
+- pthread_rwlock_unlock(&lock);
+- }
+- return ret;
+-}
+-#else
+-static int invalid_dso_handle(void *h)
+-{
+- error("Invalid library handle %p", (void *)h);
+- return 1;
+-}
+-void *dlopen(const char *file, int mode)
+-{
+- error("Dynamic loading not supported");
+- return 0;
+-}
+-void *__dlsym(void *restrict p, const char *restrict s, void *restrict ra)
+-{
+- error("Symbol not found: %s", s);
+- return 0;
+-}
+-int __dladdr (const void *addr, Dl_info *info)
+-{
+- return 0;
+-}
+-#endif
+-
+-int __dlinfo(void *dso, int req, void *res)
+-{
+- if (invalid_dso_handle(dso)) return -1;
+- if (req != RTLD_DI_LINKMAP) {
+- error("Unsupported request %d", req);
+- return -1;
+- }
+- *(struct link_map **)res = dso;
+- return 0;
+-}
+-
+-char *dlerror()
+-{
+- pthread_t self = __pthread_self();
+- if (!self->dlerror_flag) return 0;
+- self->dlerror_flag = 0;
+- char *s = self->dlerror_buf;
+- if (s == (void *)-1)
+- return "Dynamic linker failed to allocate memory for error message";
+- else
+- return s;
+-}
+-
+-int dlclose(void *p)
+-{
+- return invalid_dso_handle(p);
+-}
+-
+-void __dl_thread_cleanup(void)
+-{
+- pthread_t self = __pthread_self();
+- if (self->dlerror_buf != (void *)-1)
+- free(self->dlerror_buf);
+-}
+-
+-static void error(const char *fmt, ...)
+-{
+- va_list ap;
+- va_start(ap, fmt);
+-#ifdef SHARED
+- if (!runtime) {
+- vdprintf(2, fmt, ap);
+- dprintf(2, "\n");
+- ldso_fail = 1;
+- va_end(ap);
+- return;
+- }
+-#endif
+- pthread_t self = __pthread_self();
+- if (self->dlerror_buf != (void *)-1)
+- free(self->dlerror_buf);
+- size_t len = vsnprintf(0, 0, fmt, ap);
+- va_end(ap);
+- char *buf = malloc(len+1);
+- if (buf) {
+- va_start(ap, fmt);
+- vsnprintf(buf, len+1, fmt, ap);
+- va_end(ap);
+- } else {
+- buf = (void *)-1;
+- }
+- self->dlerror_buf = buf;
+- self->dlerror_flag = 1;
+-}
+--- a/src/ldso/tlsdesc.c
++++ b/src/ldso/tlsdesc.c
+@@ -1,5 +1,3 @@
+-#ifdef SHARED
+-
+ #include <stddef.h>
+ #include "libc.h"
+
+@@ -12,5 +10,3 @@ ptrdiff_t __tlsdesc_static()
+ }
+
+ weak_alias(__tlsdesc_static, __tlsdesc_dynamic);
+-
+-#endif
+--- a/src/legacy/utmpx.c
++++ b/src/legacy/utmpx.c
+@@ -1,5 +1,6 @@
+ #include <utmpx.h>
+ #include <stddef.h>
++#include <errno.h>
+ #include "libc.h"
+
+ void endutxent(void)
+@@ -34,6 +35,12 @@ void updwtmpx(const char *f, const struc
+ {
+ }
+
++int __utmpxname(const char *f)
++{
++ errno = ENOTSUP;
++ return -1;
++}
++
+ weak_alias(endutxent, endutent);
+ weak_alias(setutxent, setutent);
+ weak_alias(getutxent, getutent);
+@@ -41,3 +48,5 @@ weak_alias(getutxid, getutid);
+ weak_alias(getutxline, getutline);
+ weak_alias(pututxline, pututline);
+ weak_alias(updwtmpx, updwtmp);
++weak_alias(__utmpxname, utmpname);
++weak_alias(__utmpxname, utmpxname);
+--- /dev/null
++++ b/src/linux/x32/sysinfo.c
+@@ -0,0 +1,50 @@
++#include <sys/sysinfo.h>
++#include "syscall.h"
++#include "libc.h"
++
++#define klong long long
++#define kulong unsigned long long
++
++struct kernel_sysinfo {
++ klong uptime;
++ kulong loads[3];
++ kulong totalram;
++ kulong freeram;
++ kulong sharedram;
++ kulong bufferram;
++ kulong totalswap;
++ kulong freeswap;
++ short procs;
++ short pad;
++ kulong totalhigh;
++ kulong freehigh;
++ unsigned mem_unit;
++};
++
++int __lsysinfo(struct sysinfo *info)
++{
++ struct kernel_sysinfo tmp;
++ int ret = syscall(SYS_sysinfo, &tmp);
++ if(ret == -1) return ret;
++ info->uptime = tmp.uptime;
++ info->loads[0] = tmp.loads[0];
++ info->loads[1] = tmp.loads[1];
++ info->loads[2] = tmp.loads[2];
++ kulong shifts;
++ kulong max = tmp.totalram | tmp.totalswap;
++ __asm__("bsr %1,%0" : "=r"(shifts) : "r"(max));
++ shifts = shifts >= 32 ? shifts - 31 : 0;
++ info->totalram = tmp.totalram >> shifts;
++ info->freeram = tmp.freeram >> shifts;
++ info->sharedram = tmp.sharedram >> shifts;
++ info->bufferram = tmp.bufferram >> shifts;
++ info->totalswap = tmp.totalswap >> shifts;
++ info->freeswap = tmp.freeswap >> shifts;
++ info->procs = tmp.procs ;
++ info->totalhigh = tmp.totalhigh >> shifts;
++ info->freehigh = tmp.freehigh >> shifts;
++ info->mem_unit = (tmp.mem_unit ? tmp.mem_unit : 1) << shifts;
++ return ret;
++}
++
++weak_alias(__lsysinfo, sysinfo);
+--- a/src/linux/x32/sysinfo.s
++++ /dev/null
+@@ -1 +0,0 @@
+-# see arch/x32/src/sysinfo.c
+--- a/src/locale/langinfo.c
++++ b/src/locale/langinfo.c
+@@ -37,23 +37,23 @@ char *__nl_langinfo_l(nl_item item, loca
+
+ switch (cat) {
+ case LC_NUMERIC:
+- if (idx > 1) return NULL;
++ if (idx > 1) return "";
+ str = c_numeric;
+ break;
+ case LC_TIME:
+- if (idx > 0x31) return NULL;
++ if (idx > 0x31) return "";
+ str = c_time;
+ break;
+ case LC_MONETARY:
+- if (idx > 0) return NULL;
++ if (idx > 0) return "";
+ str = "";
+ break;
+ case LC_MESSAGES:
+- if (idx > 3) return NULL;
++ if (idx > 3) return "";
+ str = c_messages;
+ break;
+ default:
+- return NULL;
++ return "";
+ }
+
+ for (; idx; idx--, str++) for (; *str; str++);
+--- a/src/malloc/lite_malloc.c
++++ b/src/malloc/lite_malloc.c
+@@ -8,7 +8,7 @@
+
+ void *__expand_heap(size_t *);
+
+-void *__simple_malloc(size_t n)
++static void *__simple_malloc(size_t n)
+ {
+ static char *cur, *end;
+ static volatile int lock[2];
+--- a/src/math/__rem_pio2.c
++++ b/src/math/__rem_pio2.c
+@@ -118,7 +118,7 @@ int __rem_pio2(double x, double *y)
+ if (ix < 0x413921fb) { /* |x| ~< 2^20*(pi/2), medium size */
+ medium:
+ /* rint(x/(pi/2)), Assume round-to-nearest. */
+- fn = x*invpio2 + toint - toint;
++ fn = (double_t)x*invpio2 + toint - toint;
+ n = (int32_t)fn;
+ r = x - fn*pio2_1;
+ w = fn*pio2_1t; /* 1st round, good to 85 bits */
+--- a/src/math/__rem_pio2f.c
++++ b/src/math/__rem_pio2f.c
+@@ -51,7 +51,7 @@ int __rem_pio2f(float x, double *y)
+ /* 25+53 bit pi is good enough for medium size */
+ if (ix < 0x4dc90fdb) { /* |x| ~< 2^28*(pi/2), medium size */
+ /* Use a specialized rint() to get fn. Assume round-to-nearest. */
+- fn = x*invpio2 + toint - toint;
++ fn = (double_t)x*invpio2 + toint - toint;
+ n = (int32_t)fn;
+ *y = x - fn*pio2_1 - fn*pio2_1t;
+ return n;
+--- /dev/null
++++ b/src/math/arm/fabs.c
+@@ -0,0 +1,15 @@
++#include <math.h>
++
++#if __ARM_PCS_VFP
++
++double fabs(double x)
++{
++ __asm__ ("vabs.f64 %P0, %P1" : "=w"(x) : "w"(x));
++ return x;
++}
++
++#else
++
++#include "../fabs.c"
++
++#endif
+--- /dev/null
++++ b/src/math/arm/fabsf.c
+@@ -0,0 +1,15 @@
++#include <math.h>
++
++#if __ARM_PCS_VFP
++
++float fabsf(float x)
++{
++ __asm__ ("vabs.f32 %0, %1" : "=t"(x) : "t"(x));
++ return x;
++}
++
++#else
++
++#include "../fabsf.c"
++
++#endif
+--- /dev/null
++++ b/src/math/arm/sqrt.c
+@@ -0,0 +1,15 @@
++#include <math.h>
++
++#if __VFP_FP__ && !__SOFTFP__
++
++double sqrt(double x)
++{
++ __asm__ ("vsqrt.f64 %P0, %P1" : "=w"(x) : "w"(x));
++ return x;
++}
++
++#else
++
++#include "../sqrt.c"
++
++#endif
+--- /dev/null
++++ b/src/math/arm/sqrtf.c
+@@ -0,0 +1,15 @@
++#include <math.h>
++
++#if __VFP_FP__ && !__SOFTFP__
++
++float sqrtf(float x)
++{
++ __asm__ ("vsqrt.f32 %0, %1" : "=t"(x) : "t"(x));
++ return x;
++}
++
++#else
++
++#include "../sqrtf.c"
++
++#endif
+--- a/src/math/armebhf/fabs.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../armhf/fabs.s
+--- a/src/math/armebhf/fabsf.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../armhf/fabsf.s
+--- a/src/math/armebhf/sqrt.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../armhf/sqrt.s
+--- a/src/math/armebhf/sqrtf.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../armhf/sqrtf.s
+--- a/src/math/armhf/fabs.s
++++ /dev/null
+@@ -1,7 +0,0 @@
+-.fpu vfp
+-.text
+-.global fabs
+-.type fabs,%function
+-fabs:
+- vabs.f64 d0, d0
+- bx lr
+--- a/src/math/armhf/fabs.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-fabs.s
+--- a/src/math/armhf/fabsf.s
++++ /dev/null
+@@ -1,7 +0,0 @@
+-.fpu vfp
+-.text
+-.global fabsf
+-.type fabsf,%function
+-fabsf:
+- vabs.f32 s0, s0
+- bx lr
+--- a/src/math/armhf/fabsf.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-fabsf.s
+--- a/src/math/armhf/sqrt.s
++++ /dev/null
+@@ -1,7 +0,0 @@
+-.fpu vfp
+-.text
+-.global sqrt
+-.type sqrt,%function
+-sqrt:
+- vsqrt.f64 d0, d0
+- bx lr
+--- a/src/math/armhf/sqrt.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-sqrt.s
+--- a/src/math/armhf/sqrtf.s
++++ /dev/null
+@@ -1,7 +0,0 @@
+-.fpu vfp
+-.text
+-.global sqrtf
+-.type sqrtf,%function
+-sqrtf:
+- vsqrt.f32 s0, s0
+- bx lr
+--- a/src/math/armhf/sqrtf.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-sqrtf.s
+--- a/src/math/hypot.c
++++ b/src/math/hypot.c
+@@ -12,10 +12,10 @@ static void sq(double_t *hi, double_t *l
+ {
+ double_t xh, xl, xc;
+
+- xc = x*SPLIT;
++ xc = (double_t)x*SPLIT;
+ xh = x - xc + xc;
+ xl = x - xh;
+- *hi = x*x;
++ *hi = (double_t)x*x;
+ *lo = xh*xh - *hi + 2*xh*xl + xl*xl;
+ }
+
+--- a/src/mman/mremap.c
++++ b/src/mman/mremap.c
+@@ -1,17 +1,31 @@
++#define _GNU_SOURCE
+ #include <unistd.h>
+ #include <sys/mman.h>
++#include <errno.h>
++#include <stdint.h>
+ #include <stdarg.h>
+ #include "syscall.h"
+ #include "libc.h"
+
++static void dummy(void) { }
++weak_alias(dummy, __vm_wait);
++
+ void *__mremap(void *old_addr, size_t old_len, size_t new_len, int flags, ...)
+ {
+ va_list ap;
+- void *new_addr;
+-
+- va_start(ap, flags);
+- new_addr = va_arg(ap, void *);
+- va_end(ap);
++ void *new_addr = 0;
++
++ if (new_len >= PTRDIFF_MAX) {
++ errno = ENOMEM;
++ return MAP_FAILED;
++ }
++
++ if (flags & MREMAP_FIXED) {
++ __vm_wait();
++ va_start(ap, flags);
++ new_addr = va_arg(ap, void *);
++ va_end(ap);
++ }
+
+ return (void *)syscall(SYS_mremap, old_addr, old_len, new_len, flags, new_addr);
+ }
+--- a/src/network/getifaddrs.c
++++ b/src/network/getifaddrs.c
+@@ -162,13 +162,26 @@ static int netlink_msg_to_ifaddr(void *p
+ for (rta = NLMSG_RTA(h, sizeof(*ifa)); NLMSG_RTAOK(rta, h); rta = RTA_NEXT(rta)) {
+ switch (rta->rta_type) {
+ case IFA_ADDRESS:
+- copy_addr(&ifs->ifa.ifa_addr, ifa->ifa_family, &ifs->addr, RTA_DATA(rta), RTA_DATALEN(rta), ifa->ifa_index);
++ /* If ifa_addr is already set we, received an IFA_LOCAL before
++ * so treat this as destination address */
++ if (ifs->ifa.ifa_addr)
++ copy_addr(&ifs->ifa.ifa_dstaddr, ifa->ifa_family, &ifs->ifu, RTA_DATA(rta), RTA_DATALEN(rta), ifa->ifa_index);
++ else
++ copy_addr(&ifs->ifa.ifa_addr, ifa->ifa_family, &ifs->addr, RTA_DATA(rta), RTA_DATALEN(rta), ifa->ifa_index);
+ break;
+ case IFA_BROADCAST:
+- /* For point-to-point links this is peer, but ifa_broadaddr
+- * and ifa_dstaddr are union, so this works for both. */
+ copy_addr(&ifs->ifa.ifa_broadaddr, ifa->ifa_family, &ifs->ifu, RTA_DATA(rta), RTA_DATALEN(rta), ifa->ifa_index);
+ break;
++ case IFA_LOCAL:
++ /* If ifa_addr is set and we get IFA_LOCAL, assume we have
++ * a point-to-point network. Move address to correct field. */
++ if (ifs->ifa.ifa_addr) {
++ ifs->ifu = ifs->addr;
++ ifs->ifa.ifa_dstaddr = &ifs->ifu.sa;
++ memset(&ifs->addr, 0, sizeof(ifs->addr));
++ }
++ copy_addr(&ifs->ifa.ifa_addr, ifa->ifa_family, &ifs->addr, RTA_DATA(rta), RTA_DATALEN(rta), ifa->ifa_index);
++ break;
+ case IFA_LABEL:
+ if (RTA_DATALEN(rta) < sizeof(ifs->name)) {
+ memcpy(ifs->name, RTA_DATA(rta), RTA_DATALEN(rta));
+--- a/src/network/getnameinfo.c
++++ b/src/network/getnameinfo.c
+@@ -135,13 +135,13 @@ int getnameinfo(const struct sockaddr *r
+ switch (af) {
+ case AF_INET:
+ a = (void *)&((struct sockaddr_in *)sa)->sin_addr;
+- if (sl != sizeof(struct sockaddr_in)) return EAI_FAMILY;
++ if (sl < sizeof(struct sockaddr_in)) return EAI_FAMILY;
+ mkptr4(ptr, a);
+ scopeid = 0;
+ break;
+ case AF_INET6:
+ a = (void *)&((struct sockaddr_in6 *)sa)->sin6_addr;
+- if (sl != sizeof(struct sockaddr_in6)) return EAI_FAMILY;
++ if (sl < sizeof(struct sockaddr_in6)) return EAI_FAMILY;
+ if (memcmp(a, "\0\0\0\0\0\0\0\0\0\0\xff\xff", 12))
+ mkptr6(ptr, a);
+ else
+--- a/src/network/if_nametoindex.c
++++ b/src/network/if_nametoindex.c
+@@ -10,7 +10,7 @@ unsigned if_nametoindex(const char *name
+ struct ifreq ifr;
+ int fd, r;
+
+- if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) return -1;
++ if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) return 0;
+ strncpy(ifr.ifr_name, name, sizeof ifr.ifr_name);
+ r = ioctl(fd, SIOCGIFINDEX, &ifr);
+ __syscall(SYS_close, fd);
+--- a/src/network/lookup.h
++++ b/src/network/lookup.h
+@@ -2,6 +2,7 @@
+ #define LOOKUP_H
+
+ #include <stdint.h>
++#include <stddef.h>
+
+ struct address {
+ int family;
+@@ -15,6 +16,14 @@ struct service {
+ unsigned char proto, socktype;
+ };
+
++#define MAXNS 3
++
++struct resolvconf {
++ struct address ns[MAXNS];
++ unsigned nns, attempts, ndots;
++ unsigned timeout;
++};
++
+ /* The limit of 48 results is a non-sharp bound on the number of addresses
+ * that can fit in one 512-byte DNS packet full of v4 results and a second
+ * packet full of v6 results. Due to headers, the actual limit is lower. */
+@@ -25,4 +34,6 @@ int __lookup_serv(struct service buf[sta
+ int __lookup_name(struct address buf[static MAXADDRS], char canon[static 256], const char *name, int family, int flags);
+ int __lookup_ipliteral(struct address buf[static 1], const char *name, int family);
+
++int __get_resolv_conf(struct resolvconf *, char *, size_t);
++
+ #endif
+--- a/src/network/lookup_name.c
++++ b/src/network/lookup_name.c
+@@ -9,6 +9,7 @@
+ #include <fcntl.h>
+ #include <unistd.h>
+ #include <pthread.h>
++#include <errno.h>
+ #include "lookup.h"
+ #include "stdio_impl.h"
+ #include "syscall.h"
+@@ -51,7 +52,14 @@ static int name_from_hosts(struct addres
+ int cnt = 0;
+ unsigned char _buf[1032];
+ FILE _f, *f = __fopen_rb_ca("/etc/hosts", &_f, _buf, sizeof _buf);
+- if (!f) return 0;
++ if (!f) switch (errno) {
++ case ENOENT:
++ case ENOTDIR:
++ case EACCES:
++ return 0;
++ default:
++ return EAI_SYSTEM;
++ }
+ while (fgets(line, sizeof line, f) && cnt < MAXADDRS) {
+ char *p, *z;
+
+@@ -85,7 +93,7 @@ struct dpc_ctx {
+ int __dns_parse(const unsigned char *, int, int (*)(void *, int, const void *, int, const void *), void *);
+ int __dn_expand(const unsigned char *, const unsigned char *, const unsigned char *, char *, int);
+ int __res_mkquery(int, const char *, int, int, const unsigned char *, int, const unsigned char*, unsigned char *, int);
+-int __res_msend(int, const unsigned char *const *, const int *, unsigned char *const *, int *, int);
++int __res_msend_rc(int, const unsigned char *const *, const int *, unsigned char *const *, int *, int, const struct resolvconf *);
+
+ #define RR_A 1
+ #define RR_CNAME 5
+@@ -117,7 +125,7 @@ static int dns_parse_callback(void *c, i
+ return 0;
+ }
+
+-static int name_from_dns(struct address buf[static MAXADDRS], char canon[static 256], const char *name, int family)
++static int name_from_dns(struct address buf[static MAXADDRS], char canon[static 256], const char *name, int family, const struct resolvconf *conf)
+ {
+ unsigned char qbuf[2][280], abuf[2][512];
+ const unsigned char *qp[2] = { qbuf[0], qbuf[1] };
+@@ -137,17 +145,59 @@ static int name_from_dns(struct address
+ nq++;
+ }
+
+- if (__res_msend(nq, qp, qlens, ap, alens, sizeof *abuf) < 0) return EAI_SYSTEM;
++ if (__res_msend_rc(nq, qp, qlens, ap, alens, sizeof *abuf, conf) < 0)
++ return EAI_SYSTEM;
+
+ for (i=0; i<nq; i++)
+ __dns_parse(abuf[i], alens[i], dns_parse_callback, &ctx);
+
+ if (ctx.cnt) return ctx.cnt;
+ if (alens[0] < 4 || (abuf[0][3] & 15) == 2) return EAI_AGAIN;
+- if ((abuf[0][3] & 15) == 3) return EAI_NONAME;
++ if ((abuf[0][3] & 15) == 0) return EAI_NONAME;
++ if ((abuf[0][3] & 15) == 3) return 0;
+ return EAI_FAIL;
+ }
+
++static int name_from_dns_search(struct address buf[static MAXADDRS], char canon[static 256], const char *name, int family)
++{
++ char search[256];
++ struct resolvconf conf;
++ size_t l, dots;
++ char *p, *z;
++
++ if (__get_resolv_conf(&conf, search, sizeof search) < 0) return -1;
++
++ /* Count dots, suppress search when >=ndots or name ends in
++ * a dot, which is an explicit request for global scope. */
++ for (dots=l=0; name[l]; l++) if (name[l]=='.') dots++;
++ if (dots >= conf.ndots || name[l-1]=='.') *search = 0;
++
++ /* This can never happen; the caller already checked length. */
++ if (l >= 256) return EAI_NONAME;
++
++ /* Name with search domain appended is setup in canon[]. This both
++ * provides the desired default canonical name (if the requested
++ * name is not a CNAME record) and serves as a buffer for passing
++ * the full requested name to name_from_dns. */
++ memcpy(canon, name, l);
++ canon[l] = '.';
++
++ for (p=search; *p; p=z) {
++ for (; isspace(*p); p++);
++ for (z=p; *z && !isspace(*z); z++);
++ if (z==p) break;
++ if (z-p < 256 - l - 1) {
++ memcpy(canon+l+1, p, z-p);
++ canon[z-p+1+l] = 0;
++ int cnt = name_from_dns(buf, canon, canon, family, &conf);
++ if (cnt) return cnt;
++ }
++ }
++
++ canon[l] = 0;
++ return name_from_dns(buf, canon, name, family, &conf);
++}
++
+ static const struct policy {
+ unsigned char addr[16];
+ unsigned char len, mask;
+@@ -248,7 +298,7 @@ int __lookup_name(struct address buf[sta
+ if (!cnt) cnt = name_from_numeric(buf, name, family);
+ if (!cnt && !(flags & AI_NUMERICHOST)) {
+ cnt = name_from_hosts(buf, canon, name, family);
+- if (!cnt) cnt = name_from_dns(buf, canon, name, family);
++ if (!cnt) cnt = name_from_dns_search(buf, canon, name, family);
+ }
+ if (cnt<=0) return cnt ? cnt : EAI_NONAME;
+
+--- a/src/network/lookup_serv.c
++++ b/src/network/lookup_serv.c
+@@ -4,6 +4,7 @@
+ #include <ctype.h>
+ #include <string.h>
+ #include <fcntl.h>
++#include <errno.h>
+ #include "lookup.h"
+ #include "stdio_impl.h"
+
+@@ -69,7 +70,14 @@ int __lookup_serv(struct service buf[sta
+
+ unsigned char _buf[1032];
+ FILE _f, *f = __fopen_rb_ca("/etc/services", &_f, _buf, sizeof _buf);
+- if (!f) return EAI_SERVICE;
++ if (!f) switch (errno) {
++ case ENOENT:
++ case ENOTDIR:
++ case EACCES:
++ return EAI_SERVICE;
++ default:
++ return EAI_SYSTEM;
++ }
+
+ while (fgets(line, sizeof line, f) && cnt < MAXSERVS) {
+ if ((p=strchr(line, '#'))) *p++='\n', *p=0;
+--- a/src/network/proto.c
++++ b/src/network/proto.c
+@@ -9,21 +9,36 @@ static const unsigned char protos[] = {
+ "\001icmp\0"
+ "\002igmp\0"
+ "\003ggp\0"
++ "\004ipencap\0"
++ "\005st\0"
+ "\006tcp\0"
++ "\008egp\0"
+ "\014pup\0"
+ "\021udp\0"
+- "\026idp\0"
++ "\024hmp\0"
++ "\026xns-idp\0"
++ "\033rdp\0"
++ "\035iso-tp4\0"
++ "\044xtp\0"
++ "\045ddp\0"
++ "\046idpr-cmtp\0"
+ "\051ipv6\0"
+ "\053ipv6-route\0"
+ "\054ipv6-frag\0"
++ "\055idrp\0"
++ "\056rsvp\0"
+ "\057gre\0"
+ "\062esp\0"
+ "\063ah\0"
++ "\071skip\0"
+ "\072ipv6-icmp\0"
+ "\073ipv6-nonxt\0"
+ "\074ipv6-opts\0"
++ "\111rspf\0"
++ "\121vmtp\0"
+ "\131ospf\0"
+ "\136ipip\0"
++ "\142encap\0"
+ "\147pim\0"
+ "\377raw"
+ };
+--- a/src/network/res_msend.c
++++ b/src/network/res_msend.c
+@@ -27,18 +27,16 @@ static unsigned long mtime()
+ + ts.tv_nsec / 1000000;
+ }
+
+-int __res_msend(int nqueries, const unsigned char *const *queries,
+- const int *qlens, unsigned char *const *answers, int *alens, int asize)
++int __res_msend_rc(int nqueries, const unsigned char *const *queries,
++ const int *qlens, unsigned char *const *answers, int *alens, int asize,
++ const struct resolvconf *conf)
+ {
+ int fd;
+- FILE *f, _f;
+- unsigned char _buf[256];
+- char line[64], *s, *z;
+- int timeout = 5000, attempts = 2, retry_interval, servfail_retry;
++ int timeout, attempts, retry_interval, servfail_retry;
+ union {
+ struct sockaddr_in sin;
+ struct sockaddr_in6 sin6;
+- } sa = {0}, ns[3] = {{0}};
++ } sa = {0}, ns[MAXNS] = {{0}};
+ socklen_t sl = sizeof sa.sin;
+ int nns = 0;
+ int family = AF_INET;
+@@ -48,57 +46,27 @@ int __res_msend(int nqueries, const unsi
+ int cs;
+ struct pollfd pfd;
+ unsigned long t0, t1, t2;
+- struct address iplit;
+
+ pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
+
+- /* Get nameservers from resolv.conf, fallback to localhost */
+- f = __fopen_rb_ca("/etc/resolv.conf", &_f, _buf, sizeof _buf);
+- if (f) for (nns=0; nns<3 && fgets(line, sizeof line, f); ) {
+- if (!strncmp(line, "options", 7) && isspace(line[7])) {
+- unsigned long x;
+- char *p, *z;
+- p = strstr(line, "timeout:");
+- if (p && isdigit(p[8])) {
+- p += 8;
+- x = strtoul(p, &z, 10);
+- if (z != p) timeout = x < 30 ? x*1000 : 30000;
+- }
+- p = strstr(line, "attempts:");
+- if (p && isdigit(p[9])) {
+- p += 9;
+- x = strtoul(p, &z, 10);
+- if (z != p) attempts = x < 10 ? x : 10;
+- if (!attempts) attempts = 1;
+- }
+- }
+- if (strncmp(line, "nameserver", 10) || !isspace(line[10]))
+- continue;
+- for (s=line+11; isspace(*s); s++);
+- for (z=s; *z && !isspace(*z); z++);
+- *z=0;
++ timeout = 1000*conf->timeout;
++ attempts = conf->attempts;
+
+- if (__lookup_ipliteral(&iplit, s, AF_UNSPEC)>0) {
+- if (iplit.family == AF_INET) {
+- memcpy(&ns[nns].sin.sin_addr, iplit.addr, 4);
+- ns[nns].sin.sin_port = htons(53);
+- ns[nns++].sin.sin_family = AF_INET;
+- } else {
+- sl = sizeof sa.sin6;
+- memcpy(&ns[nns].sin6.sin6_addr, iplit.addr, 16);
+- ns[nns].sin6.sin6_port = htons(53);
+- ns[nns].sin6.sin6_scope_id = iplit.scopeid;
+- ns[nns++].sin6.sin6_family = family = AF_INET6;
+- }
++ nns = conf->nns;
++ for (nns=0; nns<conf->nns; nns++) {
++ const struct address *iplit = &conf->ns[nns];
++ if (iplit->family == AF_INET) {
++ memcpy(&ns[nns].sin.sin_addr, iplit->addr, 4);
++ ns[nns].sin.sin_port = htons(53);
++ ns[nns].sin.sin_family = AF_INET;
++ } else {
++ sl = sizeof sa.sin6;
++ memcpy(&ns[nns].sin6.sin6_addr, iplit->addr, 16);
++ ns[nns].sin6.sin6_port = htons(53);
++ ns[nns].sin6.sin6_scope_id = iplit->scopeid;
++ ns[nns].sin6.sin6_family = family = AF_INET6;
+ }
+ }
+- if (f) __fclose_ca(f);
+- if (!nns) {
+- ns[0].sin.sin_family = AF_INET;
+- ns[0].sin.sin_port = htons(53);
+- ns[0].sin.sin_addr.s_addr = htonl(0x7f000001);
+- nns=1;
+- }
+
+ /* Get local address and open/bind a socket */
+ sa.sin.sin_family = family;
+@@ -207,3 +175,11 @@ out:
+
+ return 0;
+ }
++
++int __res_msend(int nqueries, const unsigned char *const *queries,
++ const int *qlens, unsigned char *const *answers, int *alens, int asize)
++{
++ struct resolvconf conf;
++ if (__get_resolv_conf(&conf, 0, 0) < 0) return -1;
++ return __res_msend_rc(nqueries, queries, qlens, answers, alens, asize, &conf);
++}
+--- /dev/null
++++ b/src/network/resolvconf.c
+@@ -0,0 +1,93 @@
++#include "lookup.h"
++#include "stdio_impl.h"
++#include <ctype.h>
++#include <errno.h>
++#include <string.h>
++#include <netinet/in.h>
++
++int __get_resolv_conf(struct resolvconf *conf, char *search, size_t search_sz)
++{
++ char line[256];
++ unsigned char _buf[256];
++ FILE *f, _f;
++ int nns = 0;
++
++ conf->ndots = 1;
++ conf->timeout = 5;
++ conf->attempts = 2;
++ if (search) *search = 0;
++
++ f = __fopen_rb_ca("/etc/resolv.conf", &_f, _buf, sizeof _buf);
++ if (!f) switch (errno) {
++ case ENOENT:
++ case ENOTDIR:
++ case EACCES:
++ goto no_resolv_conf;
++ default:
++ return -1;
++ }
++
++ while (fgets(line, sizeof line, f)) {
++ char *p, *z;
++ if (!strchr(line, '\n') && !feof(f)) {
++ /* Ignore lines that get truncated rather than
++ * potentially misinterpreting them. */
++ int c;
++ do c = getc(f);
++ while (c != '\n' && c != EOF);
++ continue;
++ }
++ if (!strncmp(line, "options", 7) && isspace(line[7])) {
++ p = strstr(line, "ndots:");
++ if (p && isdigit(p[6])) {
++ p += 6;
++ unsigned long x = strtoul(p, &z, 10);
++ if (z != p) conf->ndots = x > 15 ? 15 : x;
++ }
++ p = strstr(line, "attempts:");
++ if (p && isdigit(p[6])) {
++ p += 6;
++ unsigned long x = strtoul(p, &z, 10);
++ if (z != p) conf->attempts = x > 10 ? 10 : x;
++ }
++ p = strstr(line, "timeout:");
++ if (p && (isdigit(p[8]) || p[8]=='.')) {
++ p += 8;
++ unsigned long x = strtoul(p, &z, 10);
++ if (z != p) conf->timeout = x > 60 ? 60 : x;
++ }
++ continue;
++ }
++ if (!strncmp(line, "nameserver", 10) && isspace(line[10])) {
++ if (nns >= MAXNS) continue;
++ for (p=line+11; isspace(*p); p++);
++ for (z=p; *z && !isspace(*z); z++);
++ *z=0;
++ if (__lookup_ipliteral(conf->ns+nns, p, AF_UNSPEC) > 0)
++ nns++;
++ continue;
++ }
++
++ if (!search) continue;
++ if ((strncmp(line, "domain", 6) && strncmp(line, "search", 6))
++ || !isspace(line[6]))
++ continue;
++ for (p=line+7; isspace(*p); p++);
++ size_t l = strlen(p);
++ /* This can never happen anyway with chosen buffer sizes. */
++ if (l >= search_sz) continue;
++ memcpy(search, p, l+1);
++ }
++
++ __fclose_ca(f);
++
++no_resolv_conf:
++ if (!nns) {
++ __lookup_ipliteral(conf->ns, "127.0.0.1", AF_UNSPEC);
++ nns = 1;
++ }
++
++ conf->nns = nns;
++
++ return 0;
++}
+--- a/src/search/tsearch_avl.c
++++ b/src/search/tsearch_avl.c
+@@ -77,38 +77,45 @@ static struct node *find(struct node *n,
+ return find(n->right, k, cmp);
+ }
+
+-static struct node *insert(struct node **n, const void *k,
+- int (*cmp)(const void *, const void *), int *new)
++static struct node *insert(struct node *n, const void *k,
++ int (*cmp)(const void *, const void *), struct node **found)
+ {
+- struct node *r = *n;
++ struct node *r;
+ int c;
+
+- if (!r) {
+- *n = r = malloc(sizeof **n);
+- if (r) {
+- r->key = k;
+- r->left = r->right = 0;
+- r->height = 1;
++ if (!n) {
++ n = malloc(sizeof *n);
++ if (n) {
++ n->key = k;
++ n->left = n->right = 0;
++ n->height = 1;
+ }
+- *new = 1;
+- return r;
++ *found = n;
++ return n;
++ }
++ c = cmp(k, n->key);
++ if (c == 0) {
++ *found = n;
++ return 0;
++ }
++ r = insert(c < 0 ? n->left : n->right, k, cmp, found);
++ if (r) {
++ if (c < 0)
++ n->left = r;
++ else
++ n->right = r;
++ r = balance(n);
+ }
+- c = cmp(k, r->key);
+- if (c == 0)
+- return r;
+- if (c < 0)
+- r = insert(&r->left, k, cmp, new);
+- else
+- r = insert(&r->right, k, cmp, new);
+- if (*new)
+- *n = balance(*n);
+ return r;
+ }
+
+-static struct node *movr(struct node *n, struct node *r) {
+- if (!n)
+- return r;
+- n->right = movr(n->right, r);
++static struct node *remove_rightmost(struct node *n, struct node **rightmost)
++{
++ if (!n->right) {
++ *rightmost = n;
++ return n->left;
++ }
++ n->right = remove_rightmost(n->right, rightmost);
+ return balance(n);
+ }
+
+@@ -122,7 +129,13 @@ static struct node *remove(struct node *
+ c = cmp(k, (*n)->key);
+ if (c == 0) {
+ struct node *r = *n;
+- *n = movr(r->left, r->right);
++ if (r->left) {
++ r->left = remove_rightmost(r->left, n);
++ (*n)->left = r->left;
++ (*n)->right = r->right;
++ *n = balance(*n);
++ } else
++ *n = r->right;
+ free(r);
+ return parent;
+ }
+@@ -138,6 +151,8 @@ static struct node *remove(struct node *
+ void *tdelete(const void *restrict key, void **restrict rootp,
+ int(*compar)(const void *, const void *))
+ {
++ if (!rootp)
++ return 0;
+ struct node *n = *rootp;
+ struct node *ret;
+ /* last argument is arbitrary non-null pointer
+@@ -150,17 +165,21 @@ void *tdelete(const void *restrict key,
+ void *tfind(const void *key, void *const *rootp,
+ int(*compar)(const void *, const void *))
+ {
++ if (!rootp)
++ return 0;
+ return find(*rootp, key, compar);
+ }
+
+ void *tsearch(const void *key, void **rootp,
+ int (*compar)(const void *, const void *))
+ {
+- int new = 0;
+- struct node *n = *rootp;
++ struct node *update;
+ struct node *ret;
+- ret = insert(&n, key, compar, &new);
+- *rootp = n;
++ if (!rootp)
++ return 0;
++ update = insert(*rootp, key, compar, &ret);
++ if (update)
++ *rootp = update;
+ return ret;
+ }
+
+--- a/src/setjmp/arm/longjmp.s
++++ b/src/setjmp/arm/longjmp.s
+@@ -1,3 +1,4 @@
++.syntax unified
+ .global _longjmp
+ .global longjmp
+ .type _longjmp,%function
+@@ -20,7 +21,11 @@ longjmp:
+ ldc p2, cr4, [ip], #48
+ 2: tst r1,#0x40
+ beq 2f
+- .word 0xecbc8b10 /* vldmia ip!, {d8-d15} */
++ .fpu vfp
++ vldmia ip!, {d8-d15}
++ .fpu softvfp
++ .eabi_attribute 10, 0
++ .eabi_attribute 27, 0
+ 2: tst r1,#0x200
+ beq 3f
+ ldcl p1, cr10, [ip], #8
+@@ -29,9 +34,7 @@ longjmp:
+ ldcl p1, cr13, [ip], #8
+ ldcl p1, cr14, [ip], #8
+ ldcl p1, cr15, [ip], #8
+-3: tst lr,#1
+- moveq pc,lr
+- bx lr
++3: bx lr
+
+ .hidden __hwcap
+ 1: .word __hwcap-1b
+--- a/src/setjmp/arm/setjmp.s
++++ b/src/setjmp/arm/setjmp.s
+@@ -1,3 +1,4 @@
++.syntax unified
+ .global __setjmp
+ .global _setjmp
+ .global setjmp
+@@ -22,7 +23,11 @@ setjmp:
+ stc p2, cr4, [ip], #48
+ 2: tst r1,#0x40
+ beq 2f
+- .word 0xecac8b10 /* vstmia ip!, {d8-d15} */
++ .fpu vfp
++ vstmia ip!, {d8-d15}
++ .fpu softvfp
++ .eabi_attribute 10, 0
++ .eabi_attribute 27, 0
+ 2: tst r1,#0x200
+ beq 3f
+ stcl p1, cr10, [ip], #8
+@@ -31,9 +36,7 @@ setjmp:
+ stcl p1, cr13, [ip], #8
+ stcl p1, cr14, [ip], #8
+ stcl p1, cr15, [ip], #8
+-3: tst lr,#1
+- moveq pc,lr
+- bx lr
++3: bx lr
+
+ .hidden __hwcap
+ 1: .word __hwcap-1b
+--- a/src/setjmp/mips-sf/longjmp.s
++++ /dev/null
+@@ -1,25 +0,0 @@
+-.set noreorder
+-
+-.global _longjmp
+-.global longjmp
+-.type _longjmp,@function
+-.type longjmp,@function
+-_longjmp:
+-longjmp:
+- move $2, $5
+- bne $2, $0, 1f
+- nop
+- addu $2, $2, 1
+-1: lw $ra, 0($4)
+- lw $sp, 4($4)
+- lw $16, 8($4)
+- lw $17, 12($4)
+- lw $18, 16($4)
+- lw $19, 20($4)
+- lw $20, 24($4)
+- lw $21, 28($4)
+- lw $22, 32($4)
+- lw $23, 36($4)
+- lw $30, 40($4)
+- jr $ra
+- lw $28, 44($4)
+--- a/src/setjmp/mips-sf/longjmp.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-longjmp.s
+--- a/src/setjmp/mips-sf/setjmp.s
++++ /dev/null
+@@ -1,25 +0,0 @@
+-.set noreorder
+-
+-.global __setjmp
+-.global _setjmp
+-.global setjmp
+-.type __setjmp,@function
+-.type _setjmp,@function
+-.type setjmp,@function
+-__setjmp:
+-_setjmp:
+-setjmp:
+- sw $ra, 0($4)
+- sw $sp, 4($4)
+- sw $16, 8($4)
+- sw $17, 12($4)
+- sw $18, 16($4)
+- sw $19, 20($4)
+- sw $20, 24($4)
+- sw $21, 28($4)
+- sw $22, 32($4)
+- sw $23, 36($4)
+- sw $30, 40($4)
+- sw $28, 44($4)
+- jr $ra
+- li $2, 0
+--- a/src/setjmp/mips-sf/setjmp.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-setjmp.s
+--- /dev/null
++++ b/src/setjmp/mips/longjmp.S
+@@ -0,0 +1,40 @@
++.set noreorder
++
++.global _longjmp
++.global longjmp
++.type _longjmp,@function
++.type longjmp,@function
++_longjmp:
++longjmp:
++ move $2, $5
++ bne $2, $0, 1f
++ nop
++ addu $2, $2, 1
++1:
++#ifndef __mips_soft_float
++ lwc1 $20, 56($4)
++ lwc1 $21, 60($4)
++ lwc1 $22, 64($4)
++ lwc1 $23, 68($4)
++ lwc1 $24, 72($4)
++ lwc1 $25, 76($4)
++ lwc1 $26, 80($4)
++ lwc1 $27, 84($4)
++ lwc1 $28, 88($4)
++ lwc1 $29, 92($4)
++ lwc1 $30, 96($4)
++ lwc1 $31, 100($4)
++#endif
++ lw $ra, 0($4)
++ lw $sp, 4($4)
++ lw $16, 8($4)
++ lw $17, 12($4)
++ lw $18, 16($4)
++ lw $19, 20($4)
++ lw $20, 24($4)
++ lw $21, 28($4)
++ lw $22, 32($4)
++ lw $23, 36($4)
++ lw $30, 40($4)
++ jr $ra
++ lw $28, 44($4)
+--- a/src/setjmp/mips/longjmp.s
++++ /dev/null
+@@ -1,37 +0,0 @@
+-.set noreorder
+-
+-.global _longjmp
+-.global longjmp
+-.type _longjmp,@function
+-.type longjmp,@function
+-_longjmp:
+-longjmp:
+- move $2, $5
+- bne $2, $0, 1f
+- nop
+- addu $2, $2, 1
+-1: lwc1 $20, 56($4)
+- lwc1 $21, 60($4)
+- lwc1 $22, 64($4)
+- lwc1 $23, 68($4)
+- lwc1 $24, 72($4)
+- lwc1 $25, 76($4)
+- lwc1 $26, 80($4)
+- lwc1 $27, 84($4)
+- lwc1 $28, 88($4)
+- lwc1 $29, 92($4)
+- lwc1 $30, 96($4)
+- lwc1 $31, 100($4)
+- lw $ra, 0($4)
+- lw $sp, 4($4)
+- lw $16, 8($4)
+- lw $17, 12($4)
+- lw $18, 16($4)
+- lw $19, 20($4)
+- lw $20, 24($4)
+- lw $21, 28($4)
+- lw $22, 32($4)
+- lw $23, 36($4)
+- lw $30, 40($4)
+- jr $ra
+- lw $28, 44($4)
+--- /dev/null
++++ b/src/setjmp/mips/setjmp.S
+@@ -0,0 +1,39 @@
++.set noreorder
++
++.global __setjmp
++.global _setjmp
++.global setjmp
++.type __setjmp,@function
++.type _setjmp,@function
++.type setjmp,@function
++__setjmp:
++_setjmp:
++setjmp:
++ sw $ra, 0($4)
++ sw $sp, 4($4)
++ sw $16, 8($4)
++ sw $17, 12($4)
++ sw $18, 16($4)
++ sw $19, 20($4)
++ sw $20, 24($4)
++ sw $21, 28($4)
++ sw $22, 32($4)
++ sw $23, 36($4)
++ sw $30, 40($4)
++ sw $28, 44($4)
++#ifndef __mips_soft_float
++ swc1 $20, 56($4)
++ swc1 $21, 60($4)
++ swc1 $22, 64($4)
++ swc1 $23, 68($4)
++ swc1 $24, 72($4)
++ swc1 $25, 76($4)
++ swc1 $26, 80($4)
++ swc1 $27, 84($4)
++ swc1 $28, 88($4)
++ swc1 $29, 92($4)
++ swc1 $30, 96($4)
++ swc1 $31, 100($4)
++#endif
++ jr $ra
++ li $2, 0
+--- a/src/setjmp/mips/setjmp.s
++++ /dev/null
+@@ -1,37 +0,0 @@
+-.set noreorder
+-
+-.global __setjmp
+-.global _setjmp
+-.global setjmp
+-.type __setjmp,@function
+-.type _setjmp,@function
+-.type setjmp,@function
+-__setjmp:
+-_setjmp:
+-setjmp:
+- sw $ra, 0($4)
+- sw $sp, 4($4)
+- sw $16, 8($4)
+- sw $17, 12($4)
+- sw $18, 16($4)
+- sw $19, 20($4)
+- sw $20, 24($4)
+- sw $21, 28($4)
+- sw $22, 32($4)
+- sw $23, 36($4)
+- sw $30, 40($4)
+- sw $28, 44($4)
+- swc1 $20, 56($4)
+- swc1 $21, 60($4)
+- swc1 $22, 64($4)
+- swc1 $23, 68($4)
+- swc1 $24, 72($4)
+- swc1 $25, 76($4)
+- swc1 $26, 80($4)
+- swc1 $27, 84($4)
+- swc1 $28, 88($4)
+- swc1 $29, 92($4)
+- swc1 $30, 96($4)
+- swc1 $31, 100($4)
+- jr $ra
+- li $2, 0
+--- a/src/setjmp/mipsel-sf/longjmp.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../mips-sf/longjmp.s
+--- a/src/setjmp/mipsel-sf/setjmp.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../mips-sf/setjmp.s
+--- a/src/setjmp/sh-nofpu/longjmp.s
++++ /dev/null
+@@ -1,22 +0,0 @@
+-.global _longjmp
+-.global longjmp
+-.type _longjmp, @function
+-.type longjmp, @function
+-_longjmp:
+-longjmp:
+- mov.l @r4+, r8
+- mov.l @r4+, r9
+- mov.l @r4+, r10
+- mov.l @r4+, r11
+- mov.l @r4+, r12
+- mov.l @r4+, r13
+- mov.l @r4+, r14
+- mov.l @r4+, r15
+- lds.l @r4+, pr
+-
+- tst r5, r5
+- movt r0
+- add r5, r0
+-
+- rts
+- nop
+--- a/src/setjmp/sh-nofpu/longjmp.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-longjmp.s
+--- a/src/setjmp/sh-nofpu/setjmp.s
++++ /dev/null
+@@ -1,24 +0,0 @@
+-.global ___setjmp
+-.hidden ___setjmp
+-.global __setjmp
+-.global _setjmp
+-.global setjmp
+-.type __setjmp, @function
+-.type _setjmp, @function
+-.type setjmp, @function
+-___setjmp:
+-__setjmp:
+-_setjmp:
+-setjmp:
+- add #36, r4
+- sts.l pr, @-r4
+- mov.l r15 @-r4
+- mov.l r14, @-r4
+- mov.l r13, @-r4
+- mov.l r12, @-r4
+- mov.l r11, @-r4
+- mov.l r10, @-r4
+- mov.l r9, @-r4
+- mov.l r8, @-r4
+- rts
+- mov #0, r0
+--- a/src/setjmp/sh-nofpu/setjmp.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-setjmp.s
+--- /dev/null
++++ b/src/setjmp/sh/longjmp.S
+@@ -0,0 +1,28 @@
++.global _longjmp
++.global longjmp
++.type _longjmp, @function
++.type longjmp, @function
++_longjmp:
++longjmp:
++ mov.l @r4+, r8
++ mov.l @r4+, r9
++ mov.l @r4+, r10
++ mov.l @r4+, r11
++ mov.l @r4+, r12
++ mov.l @r4+, r13
++ mov.l @r4+, r14
++ mov.l @r4+, r15
++ lds.l @r4+, pr
++#if __SH_FPU_ANY__ || __SH4__
++ fmov.s @r4+, fr12
++ fmov.s @r4+, fr13
++ fmov.s @r4+, fr14
++ fmov.s @r4+, fr15
++#endif
++
++ tst r5, r5
++ movt r0
++ add r5, r0
++
++ rts
++ nop
+--- a/src/setjmp/sh/longjmp.s
++++ /dev/null
+@@ -1,26 +0,0 @@
+-.global _longjmp
+-.global longjmp
+-.type _longjmp, @function
+-.type longjmp, @function
+-_longjmp:
+-longjmp:
+- mov.l @r4+, r8
+- mov.l @r4+, r9
+- mov.l @r4+, r10
+- mov.l @r4+, r11
+- mov.l @r4+, r12
+- mov.l @r4+, r13
+- mov.l @r4+, r14
+- mov.l @r4+, r15
+- lds.l @r4+, pr
+- fmov.s @r4+, fr12
+- fmov.s @r4+, fr13
+- fmov.s @r4+, fr14
+- fmov.s @r4+, fr15
+-
+- tst r5, r5
+- movt r0
+- add r5, r0
+-
+- rts
+- nop
+--- /dev/null
++++ b/src/setjmp/sh/setjmp.S
+@@ -0,0 +1,32 @@
++.global ___setjmp
++.hidden ___setjmp
++.global __setjmp
++.global _setjmp
++.global setjmp
++.type __setjmp, @function
++.type _setjmp, @function
++.type setjmp, @function
++___setjmp:
++__setjmp:
++_setjmp:
++setjmp:
++#if __SH_FPU_ANY__ || __SH4__
++ add #52, r4
++ fmov.s fr15, @-r4
++ fmov.s fr14, @-r4
++ fmov.s fr13, @-r4
++ fmov.s fr12, @-r4
++#else
++ add #36, r4
++#endif
++ sts.l pr, @-r4
++ mov.l r15, @-r4
++ mov.l r14, @-r4
++ mov.l r13, @-r4
++ mov.l r12, @-r4
++ mov.l r11, @-r4
++ mov.l r10, @-r4
++ mov.l r9, @-r4
++ mov.l r8, @-r4
++ rts
++ mov #0, r0
+--- a/src/setjmp/sh/setjmp.s
++++ /dev/null
+@@ -1,28 +0,0 @@
+-.global ___setjmp
+-.hidden ___setjmp
+-.global __setjmp
+-.global _setjmp
+-.global setjmp
+-.type __setjmp, @function
+-.type _setjmp, @function
+-.type setjmp, @function
+-___setjmp:
+-__setjmp:
+-_setjmp:
+-setjmp:
+- add #52, r4
+- fmov.s fr15, @-r4
+- fmov.s fr14, @-r4
+- fmov.s fr13, @-r4
+- fmov.s fr12, @-r4
+- sts.l pr, @-r4
+- mov.l r15, @-r4
+- mov.l r14, @-r4
+- mov.l r13, @-r4
+- mov.l r12, @-r4
+- mov.l r11, @-r4
+- mov.l r10, @-r4
+- mov.l r9, @-r4
+- mov.l r8, @-r4
+- rts
+- mov #0, r0
+--- a/src/setjmp/sheb-nofpu/longjmp.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../sh-nofpu/longjmp.s
+--- a/src/setjmp/sheb-nofpu/setjmp.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../sh-nofpu/setjmp.s
+--- a/src/signal/arm/restore.s
++++ b/src/signal/arm/restore.s
+@@ -1,3 +1,5 @@
++.syntax unified
++
+ .global __restore
+ .type __restore,%function
+ __restore:
+--- a/src/signal/arm/sigsetjmp.s
++++ b/src/signal/arm/sigsetjmp.s
+@@ -1,3 +1,4 @@
++.syntax unified
+ .global sigsetjmp
+ .global __sigsetjmp
+ .type sigsetjmp,%function
+--- a/src/signal/sigaction.c
++++ b/src/signal/sigaction.c
+@@ -17,10 +17,6 @@ void __get_handler_set(sigset_t *set)
+ int __libc_sigaction(int sig, const struct sigaction *restrict sa, struct sigaction *restrict old)
+ {
+ struct k_sigaction ksa, ksa_old;
+- if (sig >= (unsigned)_NSIG) {
+- errno = EINVAL;
+- return -1;
+- }
+ if (sa) {
+ if ((uintptr_t)sa->sa_handler > 1UL) {
+ a_or_l(handler_set+(sig-1)/(8*sizeof(long)),
+@@ -57,7 +53,7 @@ int __libc_sigaction(int sig, const stru
+
+ int __sigaction(int sig, const struct sigaction *restrict sa, struct sigaction *restrict old)
+ {
+- if (sig-32U < 3) {
++ if (sig-32U < 3 || sig-1U >= _NSIG-1) {
+ errno = EINVAL;
+ return -1;
+ }
+--- a/src/signal/sigsetjmp_tail.c
++++ b/src/signal/sigsetjmp_tail.c
+@@ -2,9 +2,7 @@
+ #include <signal.h>
+ #include "syscall.h"
+
+-#ifdef SHARED
+ __attribute__((__visibility__("hidden")))
+-#endif
+ int __sigsetjmp_tail(sigjmp_buf jb, int ret)
+ {
+ void *p = jb->__ss;
+--- a/src/stdio/getdelim.c
++++ b/src/stdio/getdelim.c
+@@ -27,17 +27,18 @@ ssize_t getdelim(char **restrict s, size
+ for (;;) {
+ z = memchr(f->rpos, delim, f->rend - f->rpos);
+ k = z ? z - f->rpos + 1 : f->rend - f->rpos;
+- if (i+k >= *n) {
++ if (i+k+1 >= *n) {
+ if (k >= SIZE_MAX/2-i) goto oom;
+- *n = i+k+2;
+- if (*n < SIZE_MAX/4) *n *= 2;
+- tmp = realloc(*s, *n);
++ size_t m = i+k+2;
++ if (!z && m < SIZE_MAX/4) m += m/2;
++ tmp = realloc(*s, m);
+ if (!tmp) {
+- *n = i+k+2;
+- tmp = realloc(*s, *n);
++ m = i+k+2;
++ tmp = realloc(*s, m);
+ if (!tmp) goto oom;
+ }
+ *s = tmp;
++ *n = m;
+ }
+ memcpy(*s+i, f->rpos, k);
+ f->rpos += k;
+--- /dev/null
++++ b/src/string/arm/__aeabi_memclr.c
+@@ -0,0 +1,9 @@
++#include <string.h>
++#include "libc.h"
++
++void __aeabi_memclr(void *dest, size_t n)
++{
++ memset(dest, 0, n);
++}
++weak_alias(__aeabi_memclr, __aeabi_memclr4);
++weak_alias(__aeabi_memclr, __aeabi_memclr8);
+--- /dev/null
++++ b/src/string/arm/__aeabi_memcpy.c
+@@ -0,0 +1,9 @@
++#include <string.h>
++#include "libc.h"
++
++void __aeabi_memcpy(void *restrict dest, const void *restrict src, size_t n)
++{
++ memcpy(dest, src, n);
++}
++weak_alias(__aeabi_memcpy, __aeabi_memcpy4);
++weak_alias(__aeabi_memcpy, __aeabi_memcpy8);
+--- /dev/null
++++ b/src/string/arm/__aeabi_memmove.c
+@@ -0,0 +1,9 @@
++#include <string.h>
++#include "libc.h"
++
++void __aeabi_memmove(void *dest, const void *src, size_t n)
++{
++ memmove(dest, src, n);
++}
++weak_alias(__aeabi_memmove, __aeabi_memmove4);
++weak_alias(__aeabi_memmove, __aeabi_memmove8);
+--- /dev/null
++++ b/src/string/arm/__aeabi_memset.c
+@@ -0,0 +1,9 @@
++#include <string.h>
++#include "libc.h"
++
++void __aeabi_memset(void *dest, size_t n, int c)
++{
++ memset(dest, c, n);
++}
++weak_alias(__aeabi_memset, __aeabi_memset4);
++weak_alias(__aeabi_memset, __aeabi_memset8);
+--- /dev/null
++++ b/src/string/arm/memcpy.c
+@@ -0,0 +1,3 @@
++#if __ARMEB__
++#include "../memcpy.c"
++#endif
+--- /dev/null
++++ b/src/string/arm/memcpy_le.S
+@@ -0,0 +1,383 @@
++#ifndef __ARMEB__
++
++/*
++ * Copyright (C) 2008 The Android Open Source Project
++ * All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * * Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ * * Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in
++ * the documentation and/or other materials provided with the
++ * distribution.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
++ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
++ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
++ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
++ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
++ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
++ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
++ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
++ * SUCH DAMAGE.
++ */
++
++
++/*
++ * Optimized memcpy() for ARM.
++ *
++ * note that memcpy() always returns the destination pointer,
++ * so we have to preserve R0.
++ */
++
++/*
++ * This file has been modified from the original for use in musl libc.
++ * The main changes are: addition of .type memcpy,%function to make the
++ * code safely callable from thumb mode, adjusting the return
++ * instructions to be compatible with pre-thumb ARM cpus, and removal
++ * of prefetch code that is not compatible with older cpus.
++ */
++
++.syntax unified
++
++.global memcpy
++.type memcpy,%function
++memcpy:
++ /* The stack must always be 64-bits aligned to be compliant with the
++ * ARM ABI. Since we have to save R0, we might as well save R4
++ * which we can use for better pipelining of the reads below
++ */
++ .fnstart
++ .save {r0, r4, lr}
++ stmfd sp!, {r0, r4, lr}
++ /* Making room for r5-r11 which will be spilled later */
++ .pad #28
++ sub sp, sp, #28
++
++ /* it simplifies things to take care of len<4 early */
++ cmp r2, #4
++ blo copy_last_3_and_return
++
++ /* compute the offset to align the source
++ * offset = (4-(src&3))&3 = -src & 3
++ */
++ rsb r3, r1, #0
++ ands r3, r3, #3
++ beq src_aligned
++
++ /* align source to 32 bits. We need to insert 2 instructions between
++ * a ldr[b|h] and str[b|h] because byte and half-word instructions
++ * stall 2 cycles.
++ */
++ movs r12, r3, lsl #31
++ sub r2, r2, r3 /* we know that r3 <= r2 because r2 >= 4 */
++ ldrbmi r3, [r1], #1
++ ldrbcs r4, [r1], #1
++ ldrbcs r12,[r1], #1
++ strbmi r3, [r0], #1
++ strbcs r4, [r0], #1
++ strbcs r12,[r0], #1
++
++src_aligned:
++
++ /* see if src and dst are aligned together (congruent) */
++ eor r12, r0, r1
++ tst r12, #3
++ bne non_congruent
++
++ /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
++ * frame. Don't update sp.
++ */
++ stmea sp, {r5-r11}
++
++ /* align the destination to a cache-line */
++ rsb r3, r0, #0
++ ands r3, r3, #0x1C
++ beq congruent_aligned32
++ cmp r3, r2
++ andhi r3, r2, #0x1C
++
++ /* conditionnaly copies 0 to 7 words (length in r3) */
++ movs r12, r3, lsl #28
++ ldmcs r1!, {r4, r5, r6, r7} /* 16 bytes */
++ ldmmi r1!, {r8, r9} /* 8 bytes */
++ stmcs r0!, {r4, r5, r6, r7}
++ stmmi r0!, {r8, r9}
++ tst r3, #0x4
++ ldrne r10,[r1], #4 /* 4 bytes */
++ strne r10,[r0], #4
++ sub r2, r2, r3
++
++congruent_aligned32:
++ /*
++ * here source is aligned to 32 bytes.
++ */
++
++cached_aligned32:
++ subs r2, r2, #32
++ blo less_than_32_left
++
++ /*
++ * We preload a cache-line up to 64 bytes ahead. On the 926, this will
++ * stall only until the requested world is fetched, but the linefill
++ * continues in the the background.
++ * While the linefill is going, we write our previous cache-line
++ * into the write-buffer (which should have some free space).
++ * When the linefill is done, the writebuffer will
++ * start dumping its content into memory
++ *
++ * While all this is going, we then load a full cache line into
++ * 8 registers, this cache line should be in the cache by now
++ * (or partly in the cache).
++ *
++ * This code should work well regardless of the source/dest alignment.
++ *
++ */
++
++ /* Align the preload register to a cache-line because the cpu does
++ * "critical word first" (the first word requested is loaded first).
++ */
++ @ bic r12, r1, #0x1F
++ @ add r12, r12, #64
++
++1: ldmia r1!, { r4-r11 }
++ subs r2, r2, #32
++
++ /*
++ * NOTE: if r12 is more than 64 ahead of r1, the following ldrhi
++ * for ARM9 preload will not be safely guarded by the preceding subs.
++ * When it is safely guarded the only possibility to have SIGSEGV here
++ * is because the caller overstates the length.
++ */
++ @ ldrhi r3, [r12], #32 /* cheap ARM9 preload */
++ stmia r0!, { r4-r11 }
++ bhs 1b
++
++ add r2, r2, #32
++
++less_than_32_left:
++ /*
++ * less than 32 bytes left at this point (length in r2)
++ */
++
++ /* skip all this if there is nothing to do, which should
++ * be a common case (if not executed the code below takes
++ * about 16 cycles)
++ */
++ tst r2, #0x1F
++ beq 1f
++
++ /* conditionnaly copies 0 to 31 bytes */
++ movs r12, r2, lsl #28
++ ldmcs r1!, {r4, r5, r6, r7} /* 16 bytes */
++ ldmmi r1!, {r8, r9} /* 8 bytes */
++ stmcs r0!, {r4, r5, r6, r7}
++ stmmi r0!, {r8, r9}
++ movs r12, r2, lsl #30
++ ldrcs r3, [r1], #4 /* 4 bytes */
++ ldrhmi r4, [r1], #2 /* 2 bytes */
++ strcs r3, [r0], #4
++ strhmi r4, [r0], #2
++ tst r2, #0x1
++ ldrbne r3, [r1] /* last byte */
++ strbne r3, [r0]
++
++ /* we're done! restore everything and return */
++1: ldmfd sp!, {r5-r11}
++ ldmfd sp!, {r0, r4, lr}
++ bx lr
++
++ /********************************************************************/
++
++non_congruent:
++ /*
++ * here source is aligned to 4 bytes
++ * but destination is not.
++ *
++ * in the code below r2 is the number of bytes read
++ * (the number of bytes written is always smaller, because we have
++ * partial words in the shift queue)
++ */
++ cmp r2, #4
++ blo copy_last_3_and_return
++
++ /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
++ * frame. Don't update sp.
++ */
++ stmea sp, {r5-r11}
++
++ /* compute shifts needed to align src to dest */
++ rsb r5, r0, #0
++ and r5, r5, #3 /* r5 = # bytes in partial words */
++ mov r12, r5, lsl #3 /* r12 = right */
++ rsb lr, r12, #32 /* lr = left */
++
++ /* read the first word */
++ ldr r3, [r1], #4
++ sub r2, r2, #4
++
++ /* write a partial word (0 to 3 bytes), such that destination
++ * becomes aligned to 32 bits (r5 = nb of words to copy for alignment)
++ */
++ movs r5, r5, lsl #31
++ strbmi r3, [r0], #1
++ movmi r3, r3, lsr #8
++ strbcs r3, [r0], #1
++ movcs r3, r3, lsr #8
++ strbcs r3, [r0], #1
++ movcs r3, r3, lsr #8
++
++ cmp r2, #4
++ blo partial_word_tail
++
++ /* Align destination to 32 bytes (cache line boundary) */
++1: tst r0, #0x1c
++ beq 2f
++ ldr r5, [r1], #4
++ sub r2, r2, #4
++ orr r4, r3, r5, lsl lr
++ mov r3, r5, lsr r12
++ str r4, [r0], #4
++ cmp r2, #4
++ bhs 1b
++ blo partial_word_tail
++
++ /* copy 32 bytes at a time */
++2: subs r2, r2, #32
++ blo less_than_thirtytwo
++
++ /* Use immediate mode for the shifts, because there is an extra cycle
++ * for register shifts, which could account for up to 50% of
++ * performance hit.
++ */
++
++ cmp r12, #24
++ beq loop24
++ cmp r12, #8
++ beq loop8
++
++loop16:
++ ldr r12, [r1], #4
++1: mov r4, r12
++ ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
++ subs r2, r2, #32
++ ldrhs r12, [r1], #4
++ orr r3, r3, r4, lsl #16
++ mov r4, r4, lsr #16
++ orr r4, r4, r5, lsl #16
++ mov r5, r5, lsr #16
++ orr r5, r5, r6, lsl #16
++ mov r6, r6, lsr #16
++ orr r6, r6, r7, lsl #16
++ mov r7, r7, lsr #16
++ orr r7, r7, r8, lsl #16
++ mov r8, r8, lsr #16
++ orr r8, r8, r9, lsl #16
++ mov r9, r9, lsr #16
++ orr r9, r9, r10, lsl #16
++ mov r10, r10, lsr #16
++ orr r10, r10, r11, lsl #16
++ stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
++ mov r3, r11, lsr #16
++ bhs 1b
++ b less_than_thirtytwo
++
++loop8:
++ ldr r12, [r1], #4
++1: mov r4, r12
++ ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
++ subs r2, r2, #32
++ ldrhs r12, [r1], #4
++ orr r3, r3, r4, lsl #24
++ mov r4, r4, lsr #8
++ orr r4, r4, r5, lsl #24
++ mov r5, r5, lsr #8
++ orr r5, r5, r6, lsl #24
++ mov r6, r6, lsr #8
++ orr r6, r6, r7, lsl #24
++ mov r7, r7, lsr #8
++ orr r7, r7, r8, lsl #24
++ mov r8, r8, lsr #8
++ orr r8, r8, r9, lsl #24
++ mov r9, r9, lsr #8
++ orr r9, r9, r10, lsl #24
++ mov r10, r10, lsr #8
++ orr r10, r10, r11, lsl #24
++ stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
++ mov r3, r11, lsr #8
++ bhs 1b
++ b less_than_thirtytwo
++
++loop24:
++ ldr r12, [r1], #4
++1: mov r4, r12
++ ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
++ subs r2, r2, #32
++ ldrhs r12, [r1], #4
++ orr r3, r3, r4, lsl #8
++ mov r4, r4, lsr #24
++ orr r4, r4, r5, lsl #8
++ mov r5, r5, lsr #24
++ orr r5, r5, r6, lsl #8
++ mov r6, r6, lsr #24
++ orr r6, r6, r7, lsl #8
++ mov r7, r7, lsr #24
++ orr r7, r7, r8, lsl #8
++ mov r8, r8, lsr #24
++ orr r8, r8, r9, lsl #8
++ mov r9, r9, lsr #24
++ orr r9, r9, r10, lsl #8
++ mov r10, r10, lsr #24
++ orr r10, r10, r11, lsl #8
++ stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
++ mov r3, r11, lsr #24
++ bhs 1b
++
++less_than_thirtytwo:
++ /* copy the last 0 to 31 bytes of the source */
++ rsb r12, lr, #32 /* we corrupted r12, recompute it */
++ add r2, r2, #32
++ cmp r2, #4
++ blo partial_word_tail
++
++1: ldr r5, [r1], #4
++ sub r2, r2, #4
++ orr r4, r3, r5, lsl lr
++ mov r3, r5, lsr r12
++ str r4, [r0], #4
++ cmp r2, #4
++ bhs 1b
++
++partial_word_tail:
++ /* we have a partial word in the input buffer */
++ movs r5, lr, lsl #(31-3)
++ strbmi r3, [r0], #1
++ movmi r3, r3, lsr #8
++ strbcs r3, [r0], #1
++ movcs r3, r3, lsr #8
++ strbcs r3, [r0], #1
++
++ /* Refill spilled registers from the stack. Don't update sp. */
++ ldmfd sp, {r5-r11}
++
++copy_last_3_and_return:
++ movs r2, r2, lsl #31 /* copy remaining 0, 1, 2 or 3 bytes */
++ ldrbmi r2, [r1], #1
++ ldrbcs r3, [r1], #1
++ ldrbcs r12,[r1]
++ strbmi r2, [r0], #1
++ strbcs r3, [r0], #1
++ strbcs r12,[r0]
++
++ /* we're done! restore sp and spilled registers and return */
++ add sp, sp, #28
++ ldmfd sp!, {r0, r4, lr}
++ bx lr
++
++#endif
+--- a/src/string/armel/memcpy.s
++++ /dev/null
+@@ -1,381 +0,0 @@
+-/*
+- * Copyright (C) 2008 The Android Open Source Project
+- * All rights reserved.
+- *
+- * Redistribution and use in source and binary forms, with or without
+- * modification, are permitted provided that the following conditions
+- * are met:
+- * * Redistributions of source code must retain the above copyright
+- * notice, this list of conditions and the following disclaimer.
+- * * Redistributions in binary form must reproduce the above copyright
+- * notice, this list of conditions and the following disclaimer in
+- * the documentation and/or other materials provided with the
+- * distribution.
+- *
+- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+- * SUCH DAMAGE.
+- */
+-
+-
+-/*
+- * Optimized memcpy() for ARM.
+- *
+- * note that memcpy() always returns the destination pointer,
+- * so we have to preserve R0.
+- */
+-
+-/*
+- * This file has been modified from the original for use in musl libc.
+- * The main changes are: addition of .type memcpy,%function to make the
+- * code safely callable from thumb mode, adjusting the return
+- * instructions to be compatible with pre-thumb ARM cpus, and removal
+- * of prefetch code that is not compatible with older cpus.
+- */
+-
+-.global memcpy
+-.type memcpy,%function
+-memcpy:
+- /* The stack must always be 64-bits aligned to be compliant with the
+- * ARM ABI. Since we have to save R0, we might as well save R4
+- * which we can use for better pipelining of the reads below
+- */
+- .fnstart
+- .save {r0, r4, lr}
+- stmfd sp!, {r0, r4, lr}
+- /* Making room for r5-r11 which will be spilled later */
+- .pad #28
+- sub sp, sp, #28
+-
+- /* it simplifies things to take care of len<4 early */
+- cmp r2, #4
+- blo copy_last_3_and_return
+-
+- /* compute the offset to align the source
+- * offset = (4-(src&3))&3 = -src & 3
+- */
+- rsb r3, r1, #0
+- ands r3, r3, #3
+- beq src_aligned
+-
+- /* align source to 32 bits. We need to insert 2 instructions between
+- * a ldr[b|h] and str[b|h] because byte and half-word instructions
+- * stall 2 cycles.
+- */
+- movs r12, r3, lsl #31
+- sub r2, r2, r3 /* we know that r3 <= r2 because r2 >= 4 */
+- .word 0x44d13001 /* ldrbmi r3, [r1], #1 */
+- .word 0x24d14001 /* ldrbcs r4, [r1], #1 */
+- .word 0x24d1c001 /* ldrbcs r12,[r1], #1 */
+- .word 0x44c03001 /* strbmi r3, [r0], #1 */
+- .word 0x24c04001 /* strbcs r4, [r0], #1 */
+- .word 0x24c0c001 /* strbcs r12,[r0], #1 */
+-
+-src_aligned:
+-
+- /* see if src and dst are aligned together (congruent) */
+- eor r12, r0, r1
+- tst r12, #3
+- bne non_congruent
+-
+- /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
+- * frame. Don't update sp.
+- */
+- stmea sp, {r5-r11}
+-
+- /* align the destination to a cache-line */
+- rsb r3, r0, #0
+- ands r3, r3, #0x1C
+- beq congruent_aligned32
+- cmp r3, r2
+- andhi r3, r2, #0x1C
+-
+- /* conditionnaly copies 0 to 7 words (length in r3) */
+- movs r12, r3, lsl #28
+- ldmcs r1!, {r4, r5, r6, r7} /* 16 bytes */
+- ldmmi r1!, {r8, r9} /* 8 bytes */
+- stmcs r0!, {r4, r5, r6, r7}
+- stmmi r0!, {r8, r9}
+- tst r3, #0x4
+- ldrne r10,[r1], #4 /* 4 bytes */
+- strne r10,[r0], #4
+- sub r2, r2, r3
+-
+-congruent_aligned32:
+- /*
+- * here source is aligned to 32 bytes.
+- */
+-
+-cached_aligned32:
+- subs r2, r2, #32
+- blo less_than_32_left
+-
+- /*
+- * We preload a cache-line up to 64 bytes ahead. On the 926, this will
+- * stall only until the requested world is fetched, but the linefill
+- * continues in the the background.
+- * While the linefill is going, we write our previous cache-line
+- * into the write-buffer (which should have some free space).
+- * When the linefill is done, the writebuffer will
+- * start dumping its content into memory
+- *
+- * While all this is going, we then load a full cache line into
+- * 8 registers, this cache line should be in the cache by now
+- * (or partly in the cache).
+- *
+- * This code should work well regardless of the source/dest alignment.
+- *
+- */
+-
+- /* Align the preload register to a cache-line because the cpu does
+- * "critical word first" (the first word requested is loaded first).
+- */
+- @ bic r12, r1, #0x1F
+- @ add r12, r12, #64
+-
+-1: ldmia r1!, { r4-r11 }
+- subs r2, r2, #32
+-
+- /*
+- * NOTE: if r12 is more than 64 ahead of r1, the following ldrhi
+- * for ARM9 preload will not be safely guarded by the preceding subs.
+- * When it is safely guarded the only possibility to have SIGSEGV here
+- * is because the caller overstates the length.
+- */
+- @ ldrhi r3, [r12], #32 /* cheap ARM9 preload */
+- stmia r0!, { r4-r11 }
+- bhs 1b
+-
+- add r2, r2, #32
+-
+-less_than_32_left:
+- /*
+- * less than 32 bytes left at this point (length in r2)
+- */
+-
+- /* skip all this if there is nothing to do, which should
+- * be a common case (if not executed the code below takes
+- * about 16 cycles)
+- */
+- tst r2, #0x1F
+- beq 1f
+-
+- /* conditionnaly copies 0 to 31 bytes */
+- movs r12, r2, lsl #28
+- ldmcs r1!, {r4, r5, r6, r7} /* 16 bytes */
+- ldmmi r1!, {r8, r9} /* 8 bytes */
+- stmcs r0!, {r4, r5, r6, r7}
+- stmmi r0!, {r8, r9}
+- movs r12, r2, lsl #30
+- ldrcs r3, [r1], #4 /* 4 bytes */
+- .word 0x40d140b2 /* ldrhmi r4, [r1], #2 */ /* 2 bytes */
+- strcs r3, [r0], #4
+- .word 0x40c040b2 /* strhmi r4, [r0], #2 */
+- tst r2, #0x1
+- .word 0x15d13000 /* ldrbne r3, [r1] */ /* last byte */
+- .word 0x15c03000 /* strbne r3, [r0] */
+-
+- /* we're done! restore everything and return */
+-1: ldmfd sp!, {r5-r11}
+- ldmfd sp!, {r0, r4, lr}
+- tst lr, #1
+- moveq pc, lr
+- bx lr
+-
+- /********************************************************************/
+-
+-non_congruent:
+- /*
+- * here source is aligned to 4 bytes
+- * but destination is not.
+- *
+- * in the code below r2 is the number of bytes read
+- * (the number of bytes written is always smaller, because we have
+- * partial words in the shift queue)
+- */
+- cmp r2, #4
+- blo copy_last_3_and_return
+-
+- /* Use post-incriment mode for stm to spill r5-r11 to reserved stack
+- * frame. Don't update sp.
+- */
+- stmea sp, {r5-r11}
+-
+- /* compute shifts needed to align src to dest */
+- rsb r5, r0, #0
+- and r5, r5, #3 /* r5 = # bytes in partial words */
+- mov r12, r5, lsl #3 /* r12 = right */
+- rsb lr, r12, #32 /* lr = left */
+-
+- /* read the first word */
+- ldr r3, [r1], #4
+- sub r2, r2, #4
+-
+- /* write a partial word (0 to 3 bytes), such that destination
+- * becomes aligned to 32 bits (r5 = nb of words to copy for alignment)
+- */
+- movs r5, r5, lsl #31
+- .word 0x44c03001 /* strbmi r3, [r0], #1 */
+- movmi r3, r3, lsr #8
+- .word 0x24c03001 /* strbcs r3, [r0], #1 */
+- movcs r3, r3, lsr #8
+- .word 0x24c03001 /* strbcs r3, [r0], #1 */
+- movcs r3, r3, lsr #8
+-
+- cmp r2, #4
+- blo partial_word_tail
+-
+- /* Align destination to 32 bytes (cache line boundary) */
+-1: tst r0, #0x1c
+- beq 2f
+- ldr r5, [r1], #4
+- sub r2, r2, #4
+- orr r4, r3, r5, lsl lr
+- mov r3, r5, lsr r12
+- str r4, [r0], #4
+- cmp r2, #4
+- bhs 1b
+- blo partial_word_tail
+-
+- /* copy 32 bytes at a time */
+-2: subs r2, r2, #32
+- blo less_than_thirtytwo
+-
+- /* Use immediate mode for the shifts, because there is an extra cycle
+- * for register shifts, which could account for up to 50% of
+- * performance hit.
+- */
+-
+- cmp r12, #24
+- beq loop24
+- cmp r12, #8
+- beq loop8
+-
+-loop16:
+- ldr r12, [r1], #4
+-1: mov r4, r12
+- ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
+- subs r2, r2, #32
+- ldrhs r12, [r1], #4
+- orr r3, r3, r4, lsl #16
+- mov r4, r4, lsr #16
+- orr r4, r4, r5, lsl #16
+- mov r5, r5, lsr #16
+- orr r5, r5, r6, lsl #16
+- mov r6, r6, lsr #16
+- orr r6, r6, r7, lsl #16
+- mov r7, r7, lsr #16
+- orr r7, r7, r8, lsl #16
+- mov r8, r8, lsr #16
+- orr r8, r8, r9, lsl #16
+- mov r9, r9, lsr #16
+- orr r9, r9, r10, lsl #16
+- mov r10, r10, lsr #16
+- orr r10, r10, r11, lsl #16
+- stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+- mov r3, r11, lsr #16
+- bhs 1b
+- b less_than_thirtytwo
+-
+-loop8:
+- ldr r12, [r1], #4
+-1: mov r4, r12
+- ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
+- subs r2, r2, #32
+- ldrhs r12, [r1], #4
+- orr r3, r3, r4, lsl #24
+- mov r4, r4, lsr #8
+- orr r4, r4, r5, lsl #24
+- mov r5, r5, lsr #8
+- orr r5, r5, r6, lsl #24
+- mov r6, r6, lsr #8
+- orr r6, r6, r7, lsl #24
+- mov r7, r7, lsr #8
+- orr r7, r7, r8, lsl #24
+- mov r8, r8, lsr #8
+- orr r8, r8, r9, lsl #24
+- mov r9, r9, lsr #8
+- orr r9, r9, r10, lsl #24
+- mov r10, r10, lsr #8
+- orr r10, r10, r11, lsl #24
+- stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+- mov r3, r11, lsr #8
+- bhs 1b
+- b less_than_thirtytwo
+-
+-loop24:
+- ldr r12, [r1], #4
+-1: mov r4, r12
+- ldmia r1!, { r5,r6,r7, r8,r9,r10,r11}
+- subs r2, r2, #32
+- ldrhs r12, [r1], #4
+- orr r3, r3, r4, lsl #8
+- mov r4, r4, lsr #24
+- orr r4, r4, r5, lsl #8
+- mov r5, r5, lsr #24
+- orr r5, r5, r6, lsl #8
+- mov r6, r6, lsr #24
+- orr r6, r6, r7, lsl #8
+- mov r7, r7, lsr #24
+- orr r7, r7, r8, lsl #8
+- mov r8, r8, lsr #24
+- orr r8, r8, r9, lsl #8
+- mov r9, r9, lsr #24
+- orr r9, r9, r10, lsl #8
+- mov r10, r10, lsr #24
+- orr r10, r10, r11, lsl #8
+- stmia r0!, {r3,r4,r5,r6, r7,r8,r9,r10}
+- mov r3, r11, lsr #24
+- bhs 1b
+-
+-less_than_thirtytwo:
+- /* copy the last 0 to 31 bytes of the source */
+- rsb r12, lr, #32 /* we corrupted r12, recompute it */
+- add r2, r2, #32
+- cmp r2, #4
+- blo partial_word_tail
+-
+-1: ldr r5, [r1], #4
+- sub r2, r2, #4
+- orr r4, r3, r5, lsl lr
+- mov r3, r5, lsr r12
+- str r4, [r0], #4
+- cmp r2, #4
+- bhs 1b
+-
+-partial_word_tail:
+- /* we have a partial word in the input buffer */
+- movs r5, lr, lsl #(31-3)
+- .word 0x44c03001 /* strbmi r3, [r0], #1 */
+- movmi r3, r3, lsr #8
+- .word 0x24c03001 /* strbcs r3, [r0], #1 */
+- movcs r3, r3, lsr #8
+- .word 0x24c03001 /* strbcs r3, [r0], #1 */
+-
+- /* Refill spilled registers from the stack. Don't update sp. */
+- ldmfd sp, {r5-r11}
+-
+-copy_last_3_and_return:
+- movs r2, r2, lsl #31 /* copy remaining 0, 1, 2 or 3 bytes */
+- .word 0x44d12001 /* ldrbmi r2, [r1], #1 */
+- .word 0x24d13001 /* ldrbcs r3, [r1], #1 */
+- .word 0x25d1c000 /* ldrbcs r12,[r1] */
+- .word 0x44c02001 /* strbmi r2, [r0], #1 */
+- .word 0x24c03001 /* strbcs r3, [r0], #1 */
+- .word 0x25c0c000 /* strbcs r12,[r0] */
+-
+- /* we're done! restore sp and spilled registers and return */
+- add sp, sp, #28
+- ldmfd sp!, {r0, r4, lr}
+- tst lr, #1
+- moveq pc, lr
+- bx lr
+--- a/src/string/armel/memcpy.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-memcpy.s
+--- a/src/string/armhf/memcpy.sub
++++ /dev/null
+@@ -1 +0,0 @@
+-../armel/memcpy.s
+--- a/src/thread/__syscall_cp.c
++++ b/src/thread/__syscall_cp.c
+@@ -1,9 +1,7 @@
+ #include "pthread_impl.h"
+ #include "syscall.h"
+
+-#ifdef SHARED
+ __attribute__((__visibility__("hidden")))
+-#endif
+ long __syscall_cp_c();
+
+ static long sccp(syscall_arg_t nr,
+--- a/src/thread/__tls_get_addr.c
++++ b/src/thread/__tls_get_addr.c
+@@ -1,16 +1,16 @@
+ #include <stddef.h>
+ #include "pthread_impl.h"
++#include "libc.h"
++
++__attribute__((__visibility__("hidden")))
++void *__tls_get_new(size_t *);
+
+ void *__tls_get_addr(size_t *v)
+ {
+ pthread_t self = __pthread_self();
+-#ifdef SHARED
+- __attribute__((__visibility__("hidden")))
+- void *__tls_get_new(size_t *);
+ if (v[0]<=(size_t)self->dtv[0])
+ return (char *)self->dtv[v[0]]+v[1]+DTP_OFFSET;
+ return __tls_get_new(v);
+-#else
+- return (char *)self->dtv[1]+v[1]+DTP_OFFSET;
+-#endif
+ }
++
++weak_alias(__tls_get_addr, __tls_get_new);
+--- a/src/thread/aarch64/syscall_cp.s
++++ b/src/thread/aarch64/syscall_cp.s
+@@ -17,7 +17,7 @@
+ __syscall_cp_asm:
+ __cp_begin:
+ ldr w0,[x0]
+- cbnz w0,1f
++ cbnz w0,__cp_cancel
+ mov x8,x1
+ mov x0,x2
+ mov x1,x3
+@@ -28,6 +28,5 @@ __cp_begin:
+ svc 0
+ __cp_end:
+ ret
+-
+- // cbnz might not be able to jump far enough
+-1: b __cancel
++__cp_cancel:
++ b __cancel
+--- /dev/null
++++ b/src/thread/arm/__set_thread_area.c
+@@ -0,0 +1,49 @@
++#include <stdint.h>
++#include <elf.h>
++#include "pthread_impl.h"
++#include "libc.h"
++
++#define HWCAP_TLS (1 << 15)
++
++extern const unsigned char __attribute__((__visibility__("hidden")))
++ __a_barrier_dummy[], __a_barrier_oldkuser[],
++ __a_barrier_v6[], __a_barrier_v7[],
++ __a_cas_dummy[], __a_cas_v6[], __a_cas_v7[],
++ __a_gettp_dummy[];
++
++#define __a_barrier_kuser 0xffff0fa0
++#define __a_cas_kuser 0xffff0fc0
++#define __a_gettp_kuser 0xffff0fe0
++
++extern uintptr_t __attribute__((__visibility__("hidden")))
++ __a_barrier_ptr, __a_cas_ptr, __a_gettp_ptr;
++
++#define SET(op,ver) (__a_##op##_ptr = \
++ (uintptr_t)__a_##op##_##ver - (uintptr_t)__a_##op##_dummy)
++
++int __set_thread_area(void *p)
++{
++#if !__ARM_ARCH_7A__ && !__ARM_ARCH_7R__ && __ARM_ARCH < 7
++ if (__hwcap & HWCAP_TLS) {
++ size_t *aux;
++ SET(cas, v7);
++ SET(barrier, v7);
++ for (aux=libc.auxv; *aux; aux+=2) {
++ if (*aux != AT_PLATFORM) continue;
++ const char *s = (void *)aux[1];
++ if (s[0]!='v' || s[1]!='6' || s[2]-'0'<10u) break;
++ SET(cas, v6);
++ SET(barrier, v6);
++ break;
++ }
++ } else {
++ int ver = *(int *)0xffff0ffc;
++ SET(gettp, kuser);
++ SET(cas, kuser);
++ SET(barrier, kuser);
++ if (ver < 2) a_crash();
++ if (ver < 3) SET(barrier, oldkuser);
++ }
++#endif
++ return __syscall(0xf0005, p);
++}
+--- a/src/thread/arm/__set_thread_area.s
++++ /dev/null
+@@ -1 +0,0 @@
+-/* Replaced by C code in arch/arm/src */
+--- a/src/thread/arm/__unmapself.s
++++ b/src/thread/arm/__unmapself.s
+@@ -1,3 +1,4 @@
++.syntax unified
+ .text
+ .global __unmapself
+ .type __unmapself,%function
+--- /dev/null
++++ b/src/thread/arm/atomics.s
+@@ -0,0 +1,111 @@
++.syntax unified
++.text
++
++.global __a_barrier
++.hidden __a_barrier
++.type __a_barrier,%function
++__a_barrier:
++ ldr ip,1f
++ ldr ip,[pc,ip]
++ add pc,pc,ip
++1: .word __a_barrier_ptr-1b
++.global __a_barrier_dummy
++.hidden __a_barrier_dummy
++__a_barrier_dummy:
++ bx lr
++.global __a_barrier_oldkuser
++.hidden __a_barrier_oldkuser
++__a_barrier_oldkuser:
++ push {r0,r1,r2,r3,ip,lr}
++ mov r1,r0
++ mov r2,sp
++ ldr ip,=0xffff0fc0
++ mov lr,pc
++ mov pc,ip
++ pop {r0,r1,r2,r3,ip,lr}
++ bx lr
++.global __a_barrier_v6
++.hidden __a_barrier_v6
++__a_barrier_v6:
++ mcr p15,0,r0,c7,c10,5
++ bx lr
++.global __a_barrier_v7
++.hidden __a_barrier_v7
++__a_barrier_v7:
++ .word 0xf57ff05b /* dmb ish */
++ bx lr
++
++.global __a_cas
++.hidden __a_cas
++.type __a_cas,%function
++__a_cas:
++ ldr ip,1f
++ ldr ip,[pc,ip]
++ add pc,pc,ip
++1: .word __a_cas_ptr-1b
++.global __a_cas_dummy
++.hidden __a_cas_dummy
++__a_cas_dummy:
++ mov r3,r0
++ ldr r0,[r2]
++ subs r0,r3,r0
++ streq r1,[r2]
++ bx lr
++.global __a_cas_v6
++.hidden __a_cas_v6
++__a_cas_v6:
++ mov r3,r0
++ mcr p15,0,r0,c7,c10,5
++1: .word 0xe1920f9f /* ldrex r0,[r2] */
++ subs r0,r3,r0
++ .word 0x01820f91 /* strexeq r0,r1,[r2] */
++ teqeq r0,#1
++ beq 1b
++ mcr p15,0,r0,c7,c10,5
++ bx lr
++.global __a_cas_v7
++.hidden __a_cas_v7
++__a_cas_v7:
++ mov r3,r0
++ .word 0xf57ff05b /* dmb ish */
++1: .word 0xe1920f9f /* ldrex r0,[r2] */
++ subs r0,r3,r0
++ .word 0x01820f91 /* strexeq r0,r1,[r2] */
++ teqeq r0,#1
++ beq 1b
++ .word 0xf57ff05b /* dmb ish */
++ bx lr
++
++.global __aeabi_read_tp
++.type __aeabi_read_tp,%function
++__aeabi_read_tp:
++
++.global __a_gettp
++.hidden __a_gettp
++.type __a_gettp,%function
++__a_gettp:
++ ldr r0,1f
++ ldr r0,[pc,r0]
++ add pc,pc,r0
++1: .word __a_gettp_ptr-1b
++.global __a_gettp_dummy
++.hidden __a_gettp_dummy
++__a_gettp_dummy:
++ mrc p15,0,r0,c13,c0,3
++ bx lr
++
++.data
++.global __a_barrier_ptr
++.hidden __a_barrier_ptr
++__a_barrier_ptr:
++ .word 0
++
++.global __a_cas_ptr
++.hidden __a_cas_ptr
++__a_cas_ptr:
++ .word 0
++
++.global __a_gettp_ptr
++.hidden __a_gettp_ptr
++__a_gettp_ptr:
++ .word 0
+--- a/src/thread/arm/clone.s
++++ b/src/thread/arm/clone.s
+@@ -1,3 +1,4 @@
++.syntax unified
+ .text
+ .global __clone
+ .type __clone,%function
+@@ -15,8 +16,6 @@ __clone:
+ tst r0,r0
+ beq 1f
+ ldmfd sp!,{r4,r5,r6,r7}
+- tst lr,#1
+- moveq pc,lr
+ bx lr
+
+ 1: mov r0,r6
+--- a/src/thread/arm/syscall_cp.s
++++ b/src/thread/arm/syscall_cp.s
+@@ -1,3 +1,4 @@
++.syntax unified
+ .global __cp_begin
+ .hidden __cp_begin
+ .global __cp_end
+@@ -22,8 +23,6 @@ __cp_begin:
+ svc 0
+ __cp_end:
+ ldmfd sp!,{r4,r5,r6,r7,lr}
+- tst lr,#1
+- moveq pc,lr
+ bx lr
+ __cp_cancel:
+ ldmfd sp!,{r4,r5,r6,r7,lr}
+--- a/src/thread/microblaze/syscall_cp.s
++++ b/src/thread/microblaze/syscall_cp.s
+@@ -11,7 +11,7 @@
+ __syscall_cp_asm:
+ __cp_begin:
+ lwi r5, r5, 0
+- bnei r5, __cancel
++ bnei r5, __cp_cancel
+ addi r12, r6, 0
+ add r5, r7, r0
+ add r6, r8, r0
+@@ -23,3 +23,5 @@ __cp_begin:
+ __cp_end:
+ rtsd r15, 8
+ nop
++__cp_cancel:
++ bri __cancel
+--- a/src/thread/or1k/syscall_cp.s
++++ b/src/thread/or1k/syscall_cp.s
+@@ -12,7 +12,7 @@ __syscall_cp_asm:
+ __cp_begin:
+ l.lwz r3, 0(r3)
+ l.sfeqi r3, 0
+- l.bnf __cancel
++ l.bnf __cp_cancel
+ l.ori r11, r4, 0
+ l.ori r3, r5, 0
+ l.ori r4, r6, 0
+@@ -24,3 +24,6 @@ __cp_begin:
+ __cp_end:
+ l.jr r9
+ l.nop
++__cp_cancel:
++ l.j __cancel
++ l.nop
+--- a/src/thread/powerpc/syscall_cp.s
++++ b/src/thread/powerpc/syscall_cp.s
+@@ -38,7 +38,7 @@ __cp_begin:
+ cmpwi cr7, 0, 0 #compare r0 with 0, store result in cr7.
+ beq+ cr7, 1f #jump to label 1 if r0 was 0
+
+- b __cancel #else call cancel
++ b __cp_cancel #else call cancel
+ 1:
+ #ok, the cancel flag was not set
+ # syscall: number goes to r0, the rest 3-8
+@@ -55,3 +55,5 @@ __cp_end:
+ #else negate result.
+ neg 3, 3
+ blr
++__cp_cancel:
++ b __cancel
+--- a/src/thread/pthread_cancel.c
++++ b/src/thread/pthread_cancel.c
+@@ -1,12 +1,11 @@
++#define _GNU_SOURCE
+ #include <string.h>
+ #include "pthread_impl.h"
+ #include "syscall.h"
+ #include "libc.h"
+
+-#ifdef SHARED
+ __attribute__((__visibility__("hidden")))
+-#endif
+-long __cancel(), __cp_cancel(), __syscall_cp_asm(), __syscall_cp_c();
++long __cancel(), __syscall_cp_asm(), __syscall_cp_c();
+
+ long __cancel()
+ {
+@@ -17,12 +16,6 @@ long __cancel()
+ return -ECANCELED;
+ }
+
+-/* If __syscall_cp_asm has adjusted the stack pointer, it must provide a
+- * definition of __cp_cancel to undo those adjustments and call __cancel.
+- * Otherwise, __cancel provides a definition for __cp_cancel. */
+-
+-weak_alias(__cancel, __cp_cancel);
+-
+ long __syscall_cp_asm(volatile void *, syscall_arg_t,
+ syscall_arg_t, syscall_arg_t, syscall_arg_t,
+ syscall_arg_t, syscall_arg_t, syscall_arg_t);
+@@ -52,24 +45,22 @@ static void _sigaddset(sigset_t *set, in
+ set->__bits[s/8/sizeof *set->__bits] |= 1UL<<(s&8*sizeof *set->__bits-1);
+ }
+
+-#ifdef SHARED
+ __attribute__((__visibility__("hidden")))
+-#endif
+-extern const char __cp_begin[1], __cp_end[1];
++extern const char __cp_begin[1], __cp_end[1], __cp_cancel[1];
+
+ static void cancel_handler(int sig, siginfo_t *si, void *ctx)
+ {
+ pthread_t self = __pthread_self();
+ ucontext_t *uc = ctx;
+- const char *ip = ((char **)&uc->uc_mcontext)[CANCEL_REG_IP];
++ uintptr_t pc = uc->uc_mcontext.MC_PC;
+
+ a_barrier();
+ if (!self->cancel || self->canceldisable == PTHREAD_CANCEL_DISABLE) return;
+
+ _sigaddset(&uc->uc_sigmask, SIGCANCEL);
+
+- if (self->cancelasync || ip >= __cp_begin && ip < __cp_end) {
+- ((char **)&uc->uc_mcontext)[CANCEL_REG_IP] = (char *)__cp_cancel;
++ if (self->cancelasync || pc >= (uintptr_t)__cp_begin && pc < (uintptr_t)__cp_end) {
++ uc->uc_mcontext.MC_PC = (uintptr_t)__cp_cancel;
+ return;
+ }
+
+--- /dev/null
++++ b/src/thread/sh/__set_thread_area.c
+@@ -0,0 +1,40 @@
++#include "pthread_impl.h"
++#include "libc.h"
++#include <elf.h>
++
++/* Also perform sh-specific init */
++
++#define CPU_HAS_LLSC 0x0040
++#define CPU_HAS_CAS_L 0x0400
++
++__attribute__((__visibility__("hidden")))
++extern const char __sh_cas_gusa[], __sh_cas_llsc[], __sh_cas_imask[], __sh_cas_cas_l[];
++
++__attribute__((__visibility__("hidden")))
++const void *__sh_cas_ptr;
++
++__attribute__((__visibility__("hidden")))
++unsigned __sh_nommu;
++
++int __set_thread_area(void *p)
++{
++ size_t *aux;
++ __asm__ __volatile__ ( "ldc %0, gbr" : : "r"(p) : "memory" );
++#ifndef __SH4A__
++ __sh_cas_ptr = __sh_cas_gusa;
++#if !defined(__SH3__) && !defined(__SH4__)
++ for (aux=libc.auxv; *aux; aux+=2) {
++ if (*aux != AT_PLATFORM) continue;
++ const char *s = (void *)aux[1];
++ if (s[0]!='s' || s[1]!='h' || s[2]!='2' || s[3]-'0'<10u) break;
++ __sh_cas_ptr = __sh_cas_imask;
++ __sh_nommu = 1;
++ }
++#endif
++ if (__hwcap & CPU_HAS_CAS_L)
++ __sh_cas_ptr = __sh_cas_cas_l;
++ else if (__hwcap & CPU_HAS_LLSC)
++ __sh_cas_ptr = __sh_cas_llsc;
++#endif
++ return 0;
++}
+--- /dev/null
++++ b/src/thread/sh/__unmapself.c
+@@ -0,0 +1,24 @@
++#include "pthread_impl.h"
++
++void __unmapself_sh_mmu(void *, size_t);
++void __unmapself_sh_nommu(void *, size_t);
++
++#if !defined(__SH3__) && !defined(__SH4__)
++#define __unmapself __unmapself_sh_nommu
++#include "dynlink.h"
++#undef CRTJMP
++#define CRTJMP(pc,sp) __asm__ __volatile__( \
++ "mov.l @%0+,r0 ; mov.l @%0,r12 ; jmp @r0 ; mov %1,r15" \
++ : : "r"(pc), "r"(sp) : "r0", "memory" )
++#include "../__unmapself.c"
++#undef __unmapself
++extern __attribute__((__visibility__("hidden"))) unsigned __sh_nommu;
++#else
++#define __sh_nommu 0
++#endif
++
++void __unmapself(void *base, size_t size)
++{
++ if (__sh_nommu) __unmapself_sh_nommu(base, size);
++ else __unmapself_sh_mmu(base, size);
++}
+--- a/src/thread/sh/__unmapself.s
++++ /dev/null
+@@ -1,22 +0,0 @@
+-.text
+-.global __unmapself_sh_mmu
+-.type __unmapself_sh_mmu, @function
+-__unmapself_sh_mmu:
+- mov #91, r3 ! SYS_munmap
+- trapa #31
+-
+- or r0, r0
+- or r0, r0
+- or r0, r0
+- or r0, r0
+- or r0, r0
+-
+- mov #1, r3 ! SYS_exit
+- mov #0, r4
+- trapa #31
+-
+- or r0, r0
+- or r0, r0
+- or r0, r0
+- or r0, r0
+- or r0, r0
+--- /dev/null
++++ b/src/thread/sh/__unmapself_mmu.s
+@@ -0,0 +1,22 @@
++.text
++.global __unmapself_sh_mmu
++.type __unmapself_sh_mmu, @function
++__unmapself_sh_mmu:
++ mov #91, r3 ! SYS_munmap
++ trapa #31
++
++ or r0, r0
++ or r0, r0
++ or r0, r0
++ or r0, r0
++ or r0, r0
++
++ mov #1, r3 ! SYS_exit
++ mov #0, r4
++ trapa #31
++
++ or r0, r0
++ or r0, r0
++ or r0, r0
++ or r0, r0
++ or r0, r0
+--- /dev/null
++++ b/src/thread/sh/atomics.s
+@@ -0,0 +1,65 @@
++/* Contract for all versions is same as cas.l r2,r3,@r0
++ * pr and r1 are also clobbered (by jsr & r1 as temp).
++ * r0,r2,r4-r15 must be preserved.
++ * r3 contains result (==r2 iff cas succeeded). */
++
++ .align 2
++.global __sh_cas_gusa
++.hidden __sh_cas_gusa
++__sh_cas_gusa:
++ mov.l r5,@-r15
++ mov.l r4,@-r15
++ mov r0,r4
++ mova 1f,r0
++ mov r15,r1
++ mov #(0f-1f),r15
++0: mov.l @r4,r5
++ cmp/eq r5,r2
++ bf 1f
++ mov.l r3,@r4
++1: mov r1,r15
++ mov r5,r3
++ mov r4,r0
++ mov.l @r15+,r4
++ rts
++ mov.l @r15+,r5
++
++.global __sh_cas_llsc
++.hidden __sh_cas_llsc
++__sh_cas_llsc:
++ mov r0,r1
++ synco
++0: movli.l @r1,r0
++ cmp/eq r0,r2
++ bf 1f
++ mov r3,r0
++ movco.l r0,@r1
++ bf 0b
++ mov r2,r0
++1: synco
++ mov r0,r3
++ rts
++ mov r1,r0
++
++.global __sh_cas_imask
++.hidden __sh_cas_imask
++__sh_cas_imask:
++ mov r0,r1
++ stc sr,r0
++ mov.l r0,@-r15
++ or #0xf0,r0
++ ldc r0,sr
++ mov.l @r1,r0
++ cmp/eq r0,r2
++ bf 1f
++ mov.l r3,@r1
++1: ldc.l @r15+,sr
++ mov r0,r3
++ rts
++ mov r1,r0
++
++.global __sh_cas_cas_l
++.hidden __sh_cas_cas_l
++__sh_cas_cas_l:
++ rts
++ .word 0x2323 /* cas.l r2,r3,@r0 */
+--- a/src/thread/sh/syscall_cp.s
++++ b/src/thread/sh/syscall_cp.s
+@@ -14,17 +14,8 @@ __syscall_cp_asm:
+ __cp_begin:
+ mov.l @r4, r4
+ tst r4, r4
+- bt 2f
+-
+- mov.l L1, r0
+- braf r0
+- nop
+-1:
+-
+-.align 2
+-L1: .long __cancel@PLT-(1b-.)
+-
+-2: mov r5, r3
++ bf __cp_cancel
++ mov r5, r3
+ mov r6, r4
+ mov r7, r5
+ mov.l @r15, r6
+@@ -43,3 +34,12 @@ __cp_end:
+
+ rts
+ nop
++
++__cp_cancel:
++ mov.l 2f, r0
++ braf r0
++ nop
++1:
++
++.align 2
++2: .long __cancel@PCREL-(1b-.)
+--- a/src/thread/x32/syscall_cp.s
++++ b/src/thread/x32/syscall_cp.s
+@@ -14,7 +14,7 @@ __syscall_cp_internal:
+ __cp_begin:
+ mov (%rdi),%eax
+ test %eax,%eax
+- jnz __cancel
++ jnz __cp_cancel
+ mov %rdi,%r11
+ mov %rsi,%rax
+ mov %rdx,%rdi
+@@ -27,3 +27,5 @@ __cp_begin:
+ syscall
+ __cp_end:
+ ret
++__cp_cancel:
++ jmp __cancel
+--- /dev/null
++++ b/src/thread/x32/syscall_cp_fixup.c
+@@ -0,0 +1,38 @@
++#include <sys/syscall.h>
++
++__attribute__((__visibility__("hidden")))
++long __syscall_cp_internal(volatile void*, long long, long long, long long, long long,
++ long long, long long, long long);
++
++struct __timespec { long long tv_sec; long tv_nsec; };
++struct __timespec_kernel { long long tv_sec; long long tv_nsec; };
++#define __tsc(X) ((struct __timespec*)(unsigned long)(X))
++#define __fixup(X) do { if(X) { \
++ ts->tv_sec = __tsc(X)->tv_sec; \
++ ts->tv_nsec = __tsc(X)->tv_nsec; \
++ (X) = (unsigned long)ts; } } while(0)
++
++__attribute__((__visibility__("hidden")))
++long __syscall_cp_asm (volatile void * foo, long long n, long long a1, long long a2, long long a3,
++ long long a4, long long a5, long long a6)
++{
++ struct __timespec_kernel ts[1];
++ switch (n) {
++ case SYS_mq_timedsend: case SYS_mq_timedreceive: case SYS_pselect6:
++ __fixup(a5);
++ break;
++ case SYS_futex:
++ if((a2 & (~128 /* FUTEX_PRIVATE_FLAG */)) == 0 /* FUTEX_WAIT */)
++ __fixup(a4);
++ break;
++ case SYS_clock_nanosleep:
++ case SYS_rt_sigtimedwait: case SYS_ppoll:
++ __fixup(a3);
++ break;
++ case SYS_nanosleep:
++ __fixup(a1);
++ break;
++ }
++ return __syscall_cp_internal(foo, n, a1, a2, a3, a4, a5, a6);
++}
++
+--- a/src/thread/x86_64/syscall_cp.s
++++ b/src/thread/x86_64/syscall_cp.s
+@@ -14,7 +14,7 @@ __syscall_cp_asm:
+ __cp_begin:
+ mov (%rdi),%eax
+ test %eax,%eax
+- jnz __cancel
++ jnz __cp_cancel
+ mov %rdi,%r11
+ mov %rsi,%rax
+ mov %rdx,%rdi
+@@ -27,3 +27,5 @@ __cp_begin:
+ syscall
+ __cp_end:
+ ret
++__cp_cancel:
++ jmp __cancel
+--- a/src/time/clock_gettime.c
++++ b/src/time/clock_gettime.c
+@@ -5,37 +5,54 @@
+ #include "libc.h"
+ #include "atomic.h"
+
+-static int sc_clock_gettime(clockid_t clk, struct timespec *ts)
++#ifdef VDSO_CGT_SYM
++
++void *__vdsosym(const char *, const char *);
++
++static void *volatile vdso_func;
++
++static int cgt_init(clockid_t clk, struct timespec *ts)
+ {
+- int r = __syscall(SYS_clock_gettime, clk, ts);
+- if (!r) return r;
+- if (r == -ENOSYS) {
+- if (clk == CLOCK_REALTIME) {
+- __syscall(SYS_gettimeofday, ts, 0);
+- ts->tv_nsec = (int)ts->tv_nsec * 1000;
+- return 0;
+- }
+- r = -EINVAL;
+- }
+- errno = -r;
+- return -1;
++ void *p = __vdsosym(VDSO_CGT_VER, VDSO_CGT_SYM);
++ int (*f)(clockid_t, struct timespec *) =
++ (int (*)(clockid_t, struct timespec *))p;
++ a_cas_p(&vdso_func, (void *)cgt_init, p);
++ return f ? f(clk, ts) : -ENOSYS;
+ }
+
+-void *__vdsosym(const char *, const char *);
++static void *volatile vdso_func = (void *)cgt_init;
++
++#endif
+
+ int __clock_gettime(clockid_t clk, struct timespec *ts)
+ {
++ int r;
++
+ #ifdef VDSO_CGT_SYM
+- static int (*volatile cgt)(clockid_t, struct timespec *);
+- if (!cgt) {
+- void *f = __vdsosym(VDSO_CGT_VER, VDSO_CGT_SYM);
+- if (!f) f = (void *)sc_clock_gettime;
+- a_cas_p(&cgt, 0, f);
++ int (*f)(clockid_t, struct timespec *) =
++ (int (*)(clockid_t, struct timespec *))vdso_func;
++ if (f) {
++ r = f(clk, ts);
++ if (!r) return r;
++ if (r == -EINVAL) return __syscall_ret(r);
++ /* Fall through on errors other than EINVAL. Some buggy
++ * vdso implementations return ENOSYS for clocks they
++ * can't handle, rather than making the syscall. This
++ * also handles the case where cgt_init fails to find
++ * a vdso function to use. */
+ }
+- return cgt(clk, ts);
+-#else
+- return sc_clock_gettime(clk, ts);
+ #endif
++
++ r = __syscall(SYS_clock_gettime, clk, ts);
++ if (r == -ENOSYS) {
++ if (clk == CLOCK_REALTIME) {
++ __syscall(SYS_gettimeofday, ts, 0);
++ ts->tv_nsec = (int)ts->tv_nsec * 1000;
++ return 0;
++ }
++ r = -EINVAL;
++ }
++ return __syscall_ret(r);
+ }
+
+ weak_alias(__clock_gettime, clock_gettime);
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-31 00:02:24 +0000