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author | Koen Vandeputte <koen.vandeputte@ncentric.com> | 2019-10-14 12:59:09 +0200 |
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committer | Koen Vandeputte <koen.vandeputte@ncentric.com> | 2019-10-15 16:11:28 +0200 |
commit | 4d5b62263c6367dae888c6833b013dffda155c16 (patch) | |
tree | 8173e1d698d8a9d665a33511ada58677b6075d01 /toolchain/musl/patches/020-mips-dlsym_donot_return_address_from_undef_sym.patch | |
parent | 57b834281b586839b5e2cb00d7907de50c68ebcc (diff) | |
download | upstream-4d5b62263c6367dae888c6833b013dffda155c16.tar.gz upstream-4d5b62263c6367dae888c6833b013dffda155c16.tar.bz2 upstream-4d5b62263c6367dae888c6833b013dffda155c16.zip |
toolchain/musl: bump to version 1.1.24
1.1.24 release notes
new features:
- GLOB_TILDE extension to glob
- non-stub catgets localization API, using netbsd binary catalog format
- posix_spawn file actions for [f]chdir (extension, pending future standard)
- secure_getenv function (extension)
- copy_file_range syscall wrapper (Linux extension)
- header-level support for new linux features in 5.2
performance:
- new fast path for lrint (generic C version) on 32-bit archs
major internal changes:
- functions involving time are overhauled to be time64-ready in 32-bit archs
- x32 uses the new time64 code paths to replace nasty hacks in syscall glue
compatibility & conformance:
- support for powerpc[64] unaligned relocation types
- powerpc[64] and sh sys/user.h no longer clash with kernel asm/ptrace.h
- select no longer modifies timeout on failure (or at all)
- mips64 stat results are no longer limited to 32-bit time range
- optreset (BSD extension) now has a public declaration
- support for clang inconsistencies in wchar_t type vs some 32-bit archs
- mips r6 syscall asm no longer has invalid lo/hi register clobbers
- vestigial asm declarations of __tls_get_new are removed (broke some tooling)
- riscv64 mcontext_t mismatch glibc's member naming is corrected
bugs fixed:
- glob failed to match broken symlinks consistently
- invalid use of interposed calloc to allocate initial TLS
- various dlsym symbol resolution logic errors
- semctl with SEM_STAT_ANY didn't work
- pthread_create with explicit scheduling was subject to priority inversion
- pthread_create failure path had data race for thread count
- timer_create with SIGEV_THREAD notification had data race getting timer id
- wide printf family failed to support l modifier for float formats
arch-specific bugs fixed:
- x87 floating point stack imbalance in math asm (i386-only CVE-2019-14697)
- x32 clock_adjtime, getrusage, wait3, wait4 produced junk (struct mismatches)
- lseek broken on x32 and mipsn32 with large file offsets
- riscv64 atomics weren't compiler barriers
- riscv64 atomics had broken asm constraints (missing earlyclobber flag)
- arm clone() was broken when compiled as thumb if start function returned
- mipsr6 setjmp/longjmp did not preserve fpu register state correctly
Refreshed all patches.
Removed upstreamed.
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Diffstat (limited to 'toolchain/musl/patches/020-mips-dlsym_donot_return_address_from_undef_sym.patch')
-rw-r--r-- | toolchain/musl/patches/020-mips-dlsym_donot_return_address_from_undef_sym.patch | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/toolchain/musl/patches/020-mips-dlsym_donot_return_address_from_undef_sym.patch b/toolchain/musl/patches/020-mips-dlsym_donot_return_address_from_undef_sym.patch deleted file mode 100644 index b3559471f3..0000000000 --- a/toolchain/musl/patches/020-mips-dlsym_donot_return_address_from_undef_sym.patch +++ /dev/null @@ -1,136 +0,0 @@ ->From a57cd35acf26ba6202ed6534a57f496464f431a1 Mon Sep 17 00:00:00 2001 -From: Szabolcs Nagy <nsz@port70.net> -Date: Sat, 10 Aug 2019 23:14:40 +0000 -Subject: [PATCH] make relocation time symbol lookup and dlsym consistent - -Using common code path for all symbol lookups fixes three dlsym issues: - -- st_shndx of STT_TLS symbols were not checked and thus an undefined - tls symbol reference could be incorrectly treated as a definition - (the sysv hash lookup returns undefined symbols, gnu does not, so should - be rare in practice). - -- symbol binding was not checked so a hidden symbol may be returned - (in principle STB_LOCAL symbols may appear in the dynamic symbol table - for hidden symbols, but linkers most likely don't produce it). - -- mips specific behaviour was not applied (ARCH_SYM_REJECT_UND) so - undefined symbols may be returned on mips. - -always_inline is used to avoid relocation performance regression, the -code generation for find_sym should not be affected. ---- - ldso/dynlink.c | 84 +++++++++++++++++++------------------------------- - 1 file changed, 31 insertions(+), 53 deletions(-) - ---- a/ldso/dynlink.c -+++ b/ldso/dynlink.c -@@ -283,12 +283,16 @@ static Sym *gnu_lookup_filtered(uint32_t - #define ARCH_SYM_REJECT_UND(s) 0 - #endif - --static struct symdef find_sym(struct dso *dso, const char *s, int need_def) -+#if defined(__GNUC__) -+__attribute__((always_inline)) -+#endif -+static inline struct symdef find_sym2(struct dso *dso, const char *s, int need_def, int use_deps) - { - uint32_t h = 0, gh = gnu_hash(s), gho = gh / (8*sizeof(size_t)), *ght; - size_t ghm = 1ul << gh % (8*sizeof(size_t)); - struct symdef def = {0}; -- for (; dso; dso=dso->syms_next) { -+ struct dso **deps = use_deps ? dso->deps : 0; -+ for (; dso; dso=use_deps ? *deps++ : dso->syms_next) { - Sym *sym; - if ((ght = dso->ghashtab)) { - sym = gnu_lookup_filtered(gh, ght, dso, s, gho, ghm); -@@ -313,6 +317,11 @@ static struct symdef find_sym(struct dso - return def; - } - -+static struct symdef find_sym(struct dso *dso, const char *s, int need_def) -+{ -+ return find_sym2(dso, s, need_def, 0); -+} -+ - static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stride) - { - unsigned char *base = dso->base; -@@ -2118,58 +2127,27 @@ static void *addr2dso(size_t a) - - 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((tls_mod_off_t []){def.dso->tls_id, def.sym->st_value-DTP_OFFSET}); -- 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)) -+ int use_deps = 0; -+ if (p == head || p == RTLD_DEFAULT) { -+ p = head; -+ } else if (p == RTLD_NEXT) { -+ p = addr2dso((size_t)ra); -+ if (!p) p=head; -+ p = p->next; -+ } else if (__dl_invalid_handle(p)) { -+ return 0; -+ } else -+ use_deps = 1; -+ struct symdef def = find_sym2(p, s, 0, use_deps); -+ if (!def.sym) { -+ error("Symbol not found: %s", s); - 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((tls_mod_off_t []){p->tls_id, sym->st_value-DTP_OFFSET}); -- 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); -- 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((tls_mod_off_t []){p->deps[i]->tls_id, sym->st_value-DTP_OFFSET}); -- 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; -+ if ((def.sym->st_info&0xf) == STT_TLS) -+ return __tls_get_addr((tls_mod_off_t []){def.dso->tls_id, def.sym->st_value-DTP_OFFSET}); -+ 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); - } - - int dladdr(const void *addr_arg, Dl_info *info) |