[toolchain] gcc: remove support for 4.6.2

There are no good reasons for keeping this version around when 4.6.3 and
4.6-linaro are there.

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@35805 3c298f89-4303-0410-b956-a3cf2f4a3e73

18 files changed, 1 insertions, 946 deletions

diff --git a/toolchain/gcc/Config.in b/toolchain/gcc/Config.in
index b5218aee3b..f83f83c5c5 100644
--- a/toolchain/gcc/Config.in
+++ b/toolchain/gcc/Config.in
@@ -11,9 +11,6 @@ choice
 		bool "gcc 4.4.7"
 		depends avr32
 
-	config GCC_VERSION_4_6_2
-		bool "gcc 4.6.2"
-
 	config GCC_VERSION_4_6_3
 		bool "gcc 4.6.3"
 
diff --git a/toolchain/gcc/Config.version b/toolchain/gcc/Config.version
index a473430395..9c843630ff 100644
--- a/toolchain/gcc/Config.version
+++ b/toolchain/gcc/Config.version
@@ -14,7 +14,6 @@ config GCC_DEFAULT_VERSION_4_6_LINARO
 config GCC_VERSION
 	string
 	default "4.4.7"	    if GCC_VERSION_4_4_7
-	default "4.6.2"	    if GCC_VERSION_4_6_2
 	default "4.6.3"	    if GCC_VERSION_4_6_3
 	default "4.7.2"	    if GCC_VERSION_4_7_2
 	default "4.5-linaro"    if GCC_VERSION_4_5_LINARO
@@ -33,7 +32,7 @@ config GCC_VERSION_4_5
 
 config GCC_VERSION_4_6
 	bool
-	default y       if (GCC_VERSION_4_6_2 || GCC_VERSION_4_6_3 || GCC_VERSION_4_6_LINARO)
+	default y       if (GCC_VERSION_4_6_3 || GCC_VERSION_4_6_LINARO)
 
 config GCC_VERSION_4_7
 	bool
diff --git a/toolchain/gcc/common.mk b/toolchain/gcc/common.mk
index 92873a0229..973b0d6b2d 100644
--- a/toolchain/gcc/common.mk
+++ b/toolchain/gcc/common.mk
@@ -66,9 +66,6 @@ else
   ifeq ($(PKG_VERSION),4.4.7)
     PKG_MD5SUM:=295709feb4441b04e87dea3f1bab4281
   endif
-  ifeq ($(PKG_VERSION),4.6.2)
-    PKG_MD5SUM:=028115c4fbfb6cfd75d6369f4a90d87e
-  endif
   ifeq ($(PKG_VERSION),4.6.3)
     PKG_MD5SUM:=773092fe5194353b02bb0110052a972e
   endif
diff --git a/toolchain/gcc/patches/4.6.2/000-gcc-bug-54369.patch b/toolchain/gcc/patches/4.6.2/000-gcc-bug-54369.patch
deleted file mode 100644
index b91f0eb62e..0000000000
--- a/toolchain/gcc/patches/4.6.2/000-gcc-bug-54369.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-Author: ebotcazou
-Date: Sun Sep  2 10:37:49 2012
-New Revision: 190860
-
-URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190860
-Log:
-    PR rtl-optimization/54369
-    * config/mips/mips.c (mips_reorg): Invoke cleanup_barriers before
-    calling dbr_schedule.
-    * config/sparc/sparc.c (sparc_reorg): Likewise.
-
-Modified:
-    branches/gcc-4_6-branch/gcc/ChangeLog
-    branches/gcc-4_6-branch/gcc/config/mips/mips.c
-    branches/gcc-4_6-branch/gcc/config/sparc/sparc.c
----
---- gcc-4_6-branch/gcc/config/mips/mips.c	2012/09/02 10:36:54	190859
-+++ gcc-4_6-branch/gcc/config/mips/mips.c	2012/09/02 10:37:49	190860
-@@ -15083,7 +15083,10 @@
-     }
- 
-   if (optimize > 0 && flag_delayed_branch)
--    dbr_schedule (get_insns ());
-+    {
-+      cleanup_barriers ();
-+      dbr_schedule (get_insns ());
-+    }
-   mips_reorg_process_insns ();
-   if (!TARGET_MIPS16
-       && TARGET_EXPLICIT_RELOCS
---- gcc-4_6-branch/gcc/config/sparc/sparc.c	2012/09/02 10:36:54	190859
-+++ gcc-4_6-branch/gcc/config/sparc/sparc.c	2012/09/02 10:37:49	190860
-@@ -9456,7 +9456,10 @@
-   /* We need to have the (essentially) final form of the insn stream in order
-      to properly detect the various hazards.  Run delay slot scheduling.  */
-   if (optimize > 0 && flag_delayed_branch)
--    dbr_schedule (get_insns ());
-+    {
-+      cleanup_barriers ();
-+      dbr_schedule (get_insns ());
-+    }
- 
-   /* Now look for specific patterns in the insn stream.  */
-   for (insn = get_insns (); insn; insn = next)
-
diff --git a/toolchain/gcc/patches/4.6.2/002-siginfo_t.patch b/toolchain/gcc/patches/4.6.2/002-siginfo_t.patch
deleted file mode 100644
index a19b7f2215..0000000000
--- a/toolchain/gcc/patches/4.6.2/002-siginfo_t.patch
+++ /dev/null
@@ -1,157 +0,0 @@
-There is one usage in boehm-gc/os_dep.c, but it is only used if
-SUNOS5SIGS is defined, which it is only if one of SUNOS5, DRSNX, HPUX, or
-FREEBSD is defined, which are all not using Linux-based glibc ports.
-
-Likewise, gcc/ada/init.c has a struct __siginfo occurence, but only for
-__FreeBSD__.
-
-config/rs6000/linux-unwind.h uses ``char siginfo[128]'', and
-config/s390/linux-unwind.h also uses a constant.
-
-I tested the following patch for sh-linux-gnu.  This only covers one
-configuration, but the change is pretty mechanic anyway and every place
-that used to refer to struct siginfo already must have had <signal.h> in
-its include path, which is the same file that declares siginfo_t.
-
-OK to commit?  This should probably also go into any active release
-branches, to keep them buildable once this glibc change ripples through?
-
-gcc/
-        * config/alpha/linux-unwind.h (alpha_fallback_frame_state): Use
-        siginfo_t instead of struct siginfo.
-        * config/bfin/linux-unwind.h (bfin_fallback_frame_state): Likewise.
-        * config/i386/linux-unwind.h (x86_fallback_frame_state): Likewise.
-        * config/ia64/linux-unwind.h (ia64_fallback_frame_state)
-        (ia64_handle_unwabi): Likewise.
-        * config/mips/linux-unwind.h (mips_fallback_frame_state): Likewise.
-        * config/pa/linux-unwind.h (pa32_fallback_frame_state): Likewise.
-        * config/sh/linux-unwind.h (shmedia_fallback_frame_state)
-        (sh_fallback_frame_state): Likewise.
-        * config/tilepro/linux-unwind.h (tile_fallback_frame_state): Likewise.
-        * config/xtensa/linux-unwind.h (xtensa_fallback_frame_state): Likewise.
-
----
-diff -urN gcc-linaro-4.6-2012.02/gcc/config/alpha/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/alpha/linux-unwind.h
---- gcc-linaro-4.6-2012.02/gcc/config/alpha/linux-unwind.h	2012-02-07 11:33:31.000000000 +0100
-+++ gcc-linaro-4.6-2012.02.new/gcc/config/alpha/linux-unwind.h	2012-09-13 10:25:52.919072751 +0200
-@@ -49,7 +49,7 @@
-   else if (pc[1] == 0x201f015f)		/* lda $0,NR_rt_sigreturn */
-     {
-       struct rt_sigframe {
--	struct siginfo info;
-+	siginfo_t info;
- 	struct ucontext uc;
-       } *rt_ = context->cfa;
-       sc = &rt_->uc.uc_mcontext;
-diff -urN gcc-linaro-4.6-2012.02/gcc/config/bfin/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/bfin/linux-unwind.h
---- gcc-linaro-4.6-2012.02/gcc/config/bfin/linux-unwind.h	2012-02-07 11:33:31.000000000 +0100
-+++ gcc-linaro-4.6-2012.02.new/gcc/config/bfin/linux-unwind.h	2012-09-13 10:26:14.819073313 +0200
-@@ -48,10 +48,10 @@
-     {
-       struct rt_sigframe {
- 	int sig;
--	struct siginfo *pinfo;
-+	siginfo_t *pinfo;
- 	void *puc;
- 	char retcode[8];
--	struct siginfo info;
-+	siginfo_t info;
- 	struct ucontext uc;
-       } *rt_ = context->cfa;
- 
-diff -urN gcc-linaro-4.6-2012.02/gcc/config/i386/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/i386/linux-unwind.h
---- gcc-linaro-4.6-2012.02/gcc/config/i386/linux-unwind.h	2012-02-07 11:33:31.000000000 +0100
-+++ gcc-linaro-4.6-2012.02.new/gcc/config/i386/linux-unwind.h	2012-09-13 10:26:41.891074005 +0200
-@@ -133,9 +133,9 @@
-     {
-       struct rt_sigframe {
- 	int sig;
--	struct siginfo *pinfo;
-+	siginfo_t *pinfo;
- 	void *puc;
--	struct siginfo info;
-+	siginfo_t info;
- 	struct ucontext uc;
-       } *rt_ = context->cfa;
-       /* The void * cast is necessary to avoid an aliasing warning.
-diff -urN gcc-linaro-4.6-2012.02/gcc/config/ia64/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/ia64/linux-unwind.h
---- gcc-linaro-4.6-2012.02/gcc/config/ia64/linux-unwind.h	2012-02-07 11:33:31.000000000 +0100
-+++ gcc-linaro-4.6-2012.02.new/gcc/config/ia64/linux-unwind.h	2012-09-13 10:26:59.251074450 +0200
-@@ -47,7 +47,7 @@
-       struct sigframe {
- 	char scratch[16];
- 	unsigned long sig_number;
--	struct siginfo *info;
-+	siginfo_t *info;
- 	struct sigcontext *sc;
-       } *frame_ = (struct sigframe *)context->psp;
-       struct sigcontext *sc = frame_->sc;
-@@ -137,7 +137,7 @@
-       struct sigframe {
- 	char scratch[16];
- 	unsigned long sig_number;
--	struct siginfo *info;
-+	siginfo_t *info;
- 	struct sigcontext *sc;
-       } *frame = (struct sigframe *)context->psp;
-       struct sigcontext *sc = frame->sc;
-diff -urN gcc-linaro-4.6-2012.02/gcc/config/mips/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/mips/linux-unwind.h
---- gcc-linaro-4.6-2012.02/gcc/config/mips/linux-unwind.h	2012-02-07 11:33:31.000000000 +0100
-+++ gcc-linaro-4.6-2012.02.new/gcc/config/mips/linux-unwind.h	2012-09-13 10:27:17.947074929 +0200
-@@ -75,7 +75,7 @@
-       struct rt_sigframe {
- 	u_int32_t ass[4];  /* Argument save space for o32.  */
- 	u_int32_t trampoline[2];
--	struct siginfo info;
-+	siginfo_t info;
- 	_sig_ucontext_t uc;
-       } *rt_ = context->cfa;
-       sc = &rt_->uc.uc_mcontext;
-diff -urN gcc-linaro-4.6-2012.02/gcc/config/pa/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/pa/linux-unwind.h
---- gcc-linaro-4.6-2012.02/gcc/config/pa/linux-unwind.h	2012-02-07 11:33:31.000000000 +0100
-+++ gcc-linaro-4.6-2012.02.new/gcc/config/pa/linux-unwind.h	2012-09-13 10:27:27.491075173 +0200
-@@ -63,7 +63,7 @@
-   int i;
-   struct sigcontext *sc;
-   struct rt_sigframe {
--    struct siginfo info;
-+    siginfo_t info;
-     struct ucontext uc;
-   } *frame;
- 
-diff -urN gcc-linaro-4.6-2012.02/gcc/config/sh/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/sh/linux-unwind.h
---- gcc-linaro-4.6-2012.02/gcc/config/sh/linux-unwind.h	2012-02-07 11:33:31.000000000 +0100
-+++ gcc-linaro-4.6-2012.02.new/gcc/config/sh/linux-unwind.h	2012-09-13 10:27:58.551075969 +0200
-@@ -80,9 +80,9 @@
- 	   && (*(unsigned long *) (pc+11)  == 0x6ff0fff0))
-     {
-       struct rt_sigframe {
--	struct siginfo *pinfo;
-+	siginfo_t *pinfo;
- 	void *puc;
--	struct siginfo info;
-+	siginfo_t info;
- 	struct ucontext uc;
-       } *rt_ = context->cfa;
-       /* The void * cast is necessary to avoid an aliasing warning.
-@@ -179,7 +179,7 @@
- 		&& (*(unsigned short *) (pc+14)  == 0x00ad))))
-     {
-       struct rt_sigframe {
--	struct siginfo info;
-+	siginfo_t info;
- 	struct ucontext uc;
-       } *rt_ = context->cfa;
-       /* The void * cast is necessary to avoid an aliasing warning.
-diff -urN gcc-linaro-4.6-2012.02/gcc/config/xtensa/linux-unwind.h gcc-linaro-4.6-2012.02.new/gcc/config/xtensa/linux-unwind.h
---- gcc-linaro-4.6-2012.02/gcc/config/xtensa/linux-unwind.h	2012-02-07 11:33:31.000000000 +0100
-+++ gcc-linaro-4.6-2012.02.new/gcc/config/xtensa/linux-unwind.h	2012-09-13 10:28:13.827076359 +0200
-@@ -62,7 +62,7 @@
-   struct sigcontext *sc;
- 
-   struct rt_sigframe {
--    struct siginfo info;
-+    siginfo_t info;
-     struct ucontext uc;
-   } *rt_;
- 
diff --git a/toolchain/gcc/patches/4.6.2/100-uclibc-conf.patch b/toolchain/gcc/patches/4.6.2/100-uclibc-conf.patch
deleted file mode 100644
index ff9ad94f62..0000000000
--- a/toolchain/gcc/patches/4.6.2/100-uclibc-conf.patch
+++ /dev/null
@@ -1,33 +0,0 @@
---- a/contrib/regression/objs-gcc.sh
-+++ b/contrib/regression/objs-gcc.sh
-@@ -106,6 +106,10 @@ if [ $H_REAL_TARGET = $H_REAL_HOST -a $H
-  then
-   make all-gdb all-dejagnu all-ld || exit 1
-   make install-gdb install-dejagnu install-ld || exit 1
-+elif [ $H_REAL_TARGET = $H_REAL_HOST -a $H_REAL_TARGET = i686-pc-linux-uclibc ]
-+ then
-+  make all-gdb all-dejagnu all-ld || exit 1
-+  make install-gdb install-dejagnu install-ld || exit 1
- elif [ $H_REAL_TARGET = $H_REAL_HOST ] ; then
-   make bootstrap || exit 1
-   make install || exit 1
---- a/libjava/classpath/ltconfig
-+++ b/libjava/classpath/ltconfig
-@@ -603,7 +603,7 @@ host_os=`echo $host | sed 's/^\([^-]*\)-
- 
- # Transform linux* to *-*-linux-gnu*, to support old configure scripts.
- case $host_os in
--linux-gnu*) ;;
-+linux-gnu*|linux-uclibc*) ;;
- linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
- esac
- 
-@@ -1247,7 +1247,7 @@ linux-gnuoldld* | linux-gnuaout* | linux
-   ;;
- 
- # This must be Linux ELF.
--linux-gnu*)
-+linux*)
-   version_type=linux
-   need_lib_prefix=no
-   need_version=no
diff --git a/toolchain/gcc/patches/4.6.2/200-musl.patch b/toolchain/gcc/patches/4.6.2/200-musl.patch
deleted file mode 100644
index 86a225cf97..0000000000
--- a/toolchain/gcc/patches/4.6.2/200-musl.patch
+++ /dev/null
@@ -1,248 +0,0 @@
-diff --git a/config.sub b/config.sub
---- a/config.sub
-+++ b/config.sub
-@@ -125,6 +125,7 @@ esac
- maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
- case $maybe_os in
-   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
-+  linux-musl* | \
-   linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
-   knetbsd*-gnu* | netbsd*-gnu* | \
-   kopensolaris*-gnu* | \
-@@ -1310,6 +1311,7 @@ case $os in
- 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
- 	      | -mingw32* | -linux-gnu* | -linux-android* \
- 	      | -linux-newlib* | -linux-uclibc* \
-+	      | -linux-musl* \
- 	      | -uxpv* | -beos* | -mpeix* | -udk* \
- 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
- 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
-diff --git a/gcc/config.gcc b/gcc/config.gcc
---- a/gcc/config.gcc
-+++ b/gcc/config.gcc
-@@ -478,7 +478,7 @@ case ${target} in
- esac
- 
- # Common C libraries.
--tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3"
-+tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4"
- 
- # Common parts for widely ported systems.
- case ${target} in
-@@ -591,6 +591,9 @@ case ${target} in
-     *-*-*uclibc*)
-       tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC"
-       ;;
-+    *-*-*musl*)
-+      tm_defines="$tm_defines DEFAULT_LIBC=LIBC_MUSL"
-+      ;;
-     *)
-       tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC"
-       ;;
-diff --git a/gcc/config/arm/linux-eabi.h b/gcc/config/arm/linux-eabi.h
---- a/gcc/config/arm/linux-eabi.h
-+++ b/gcc/config/arm/linux-eabi.h
-@@ -64,6 +64,10 @@
- #undef  GLIBC_DYNAMIC_LINKER
- #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"
- 
-+/* musl has no "classic" (i.e. broken) mode */
-+#undef  MUSL_DYNAMIC_LINKER
-+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-arm.so.1"
-+
- /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
-    use the GNU/Linux version, not the generic BPABI version.  */
- #undef  LINK_SPEC
-diff --git a/gcc/config/i386/linux.h b/gcc/config/i386/linux.h
---- a/gcc/config/i386/linux.h
-+++ b/gcc/config/i386/linux.h
-@@ -93,6 +93,7 @@ along with GCC; see the file COPYING3.  If not see
- /* These macros may be overridden in k*bsd-gnu.h and i386/k*bsd-gnu.h. */
- #define LINK_EMULATION "elf_i386"
- #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
-+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-i386.so.1"
- 
- #undef  ASM_SPEC
- #define ASM_SPEC \
-diff --git a/gcc/config/i386/linux64.h b/gcc/config/i386/linux64.h
---- a/gcc/config/i386/linux64.h
-+++ b/gcc/config/i386/linux64.h
-@@ -65,6 +65,9 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
- #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
- #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
- 
-+#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-i386.so.1"
-+#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-x86_64.so.1"
-+
- #if TARGET_64BIT_DEFAULT
- #define SPEC_32 "m32"
- #define SPEC_64 "!m32"
-diff --git a/gcc/config/linux.h b/gcc/config/linux.h
---- a/gcc/config/linux.h
-+++ b/gcc/config/linux.h
-@@ -33,10 +33,12 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
- #define OPTION_GLIBC  (DEFAULT_LIBC == LIBC_GLIBC)
- #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
- #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
-+#define OPTION_MUSL   (DEFAULT_LIBC == LIBC_MUSL)
- #else
- #define OPTION_GLIBC  (linux_libc == LIBC_GLIBC)
- #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
- #define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
-+#define OPTION_MUSL   (linux_libc == LIBC_MUSL)
- #endif
- 
- #define LINUX_TARGET_OS_CPP_BUILTINS()				\
-@@ -54,18 +56,21 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
-    uClibc or Bionic is the default C library and whether
-    -muclibc or -mglibc or -mbionic has been passed to change the default.  */
- 
--#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LD1, LD2, LD3)	\
--  "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:" LD1 "}}"
-+#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LIBC4, LD1, LD2, LD3, LD4)	\
-+  "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:%{" LIBC4 ":" LD4 ";:" LD1 "}}}"
- 
- #if DEFAULT_LIBC == LIBC_GLIBC
--#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
--  CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", G, U, B)
-+#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
-+  CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", "mmusl", G, U, B, M)
- #elif DEFAULT_LIBC == LIBC_UCLIBC
--#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
--  CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", U, G, B)
-+#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
-+  CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", "mmusl", U, G, B, M)
- #elif DEFAULT_LIBC == LIBC_BIONIC
--#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
--  CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", B, G, U)
-+#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
-+  CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", "mmusl", B, G, U, M)
-+#elif DEFAULT_LIBC == LIBC_MUSL
-+#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
-+  CHOOSE_DYNAMIC_LINKER1 ("mmusl", "mglibc", "muclibc", "mbionic", M, G, U, B)
- #else
- #error "Unsupported DEFAULT_LIBC"
- #endif /* DEFAULT_LIBC */
-@@ -83,13 +88,13 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
- 
- #define LINUX_DYNAMIC_LINKER						\
-   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,	\
--			 BIONIC_DYNAMIC_LINKER)
-+			 BIONIC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
- #define LINUX_DYNAMIC_LINKER32						\
-   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, \
--			 BIONIC_DYNAMIC_LINKER32)
-+			 BIONIC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32)
- #define LINUX_DYNAMIC_LINKER64						\
-   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, \
--			 BIONIC_DYNAMIC_LINKER64)
-+			 BIONIC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64)
- 
- /* Determine whether the entire c99 runtime
-    is present in the runtime library.  */
-diff --git a/gcc/config/linux.opt b/gcc/config/linux.opt
---- a/gcc/config/linux.opt
-+++ b/gcc/config/linux.opt
-@@ -30,3 +30,7 @@ Use GNU C library
- muclibc
- Target Report RejectNegative Var(linux_libc,LIBC_UCLIBC) Negative(mbionic)
- Use uClibc C library
-+
-+mmusl
-+Target Report RejectNegative Var(linux_libc,LIBC_MUSL) Negative(mglibc)
-+Use musl C library
-diff --git a/gcc/config/mips/linux.h b/gcc/config/mips/linux.h
---- a/gcc/config/mips/linux.h
-+++ b/gcc/config/mips/linux.h
-@@ -63,6 +63,8 @@ along with GCC; see the file COPYING3.  If not see
- 
- #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
- 
-+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips.so.1"
-+
- /* Borrowed from sparc/linux.h */
- #undef LINK_SPEC
- #define LINK_SPEC \
-diff --git a/gcc/ginclude/stddef.h b/gcc/ginclude/stddef.h
---- a/gcc/ginclude/stddef.h
-+++ b/gcc/ginclude/stddef.h
-@@ -184,6 +184,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t;
- #ifndef _GCC_SIZE_T
- #ifndef _SIZET_
- #ifndef __size_t
-+#ifndef __DEFINED_size_t /* musl */
- #define __size_t__	/* BeOS */
- #define __SIZE_T__	/* Cray Unicos/Mk */
- #define _SIZE_T
-@@ -200,6 +201,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t;
- #define ___int_size_t_h
- #define _GCC_SIZE_T
- #define _SIZET_
-+#define __DEFINED_size_t /* musl */
- #if defined (__FreeBSD__) && (__FreeBSD__ >= 5)
- /* __size_t is a typedef on FreeBSD 5!, must not trash it. */
- #else
-@@ -214,6 +216,7 @@ typedef __SIZE_TYPE__ size_t;
- typedef long ssize_t;
- #endif /* __BEOS__ */
- #endif /* !(defined (__GNUG__) && defined (size_t)) */
-+#endif /* __DEFINED_size_t */
- #endif /* __size_t */
- #endif /* _SIZET_ */
- #endif /* _GCC_SIZE_T */
-diff --git a/libgomp/config/posix/time.c b/libgomp/config/posix/time.c
---- a/libgomp/config/posix/time.c
-+++ b/libgomp/config/posix/time.c
-@@ -28,6 +28,8 @@
-    The following implementation uses the most simple POSIX routines.
-    If present, POSIX 4 clocks should be used instead.  */
- 
-+#define _POSIX_C_SOURCE 199309L /* for clocks */
-+
- #include "libgomp.h"
- #include <unistd.h>
- #if TIME_WITH_SYS_TIME
-diff --git a/libstdc++-v3/configure.host b/libstdc++-v3/configure.host
---- a/libstdc++-v3/configure.host
-+++ b/libstdc++-v3/configure.host
-@@ -237,6 +237,13 @@ case "${host_os}" in
-     os_include_dir="os/bsd/freebsd"
-     ;;
-   gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
-+    # check for musl by target
-+    case "${host_os}" in
-+      *-musl*)
-+        os_include_dir="os/generic"
-+        ;;
-+      *)
-+
-     if [ "$uclibc" = "yes" ]; then
-       os_include_dir="os/uclibc"
-     elif [ "$bionic" = "yes" ]; then
-@@ -245,6 +252,9 @@ case "${host_os}" in
-       os_include_dir="os/gnu-linux"
-     fi
-     ;;
-+
-+    esac
-+    ;;
-   hpux*)
-     os_include_dir="os/hpux"
-     ;;
-diff --git a/gcc/config/mips/linux64.h b/gcc/config/mips/linux64.h
---- a/gcc/config/mips/linux64.h	2012-11-12 15:28:31.000000000 +0100
-+++ b/gcc/config/mips/linux64.h	2012-11-29 15:11:14.006324944 +0100
-@@ -40,9 +40,12 @@
- #define GLIBC_DYNAMIC_LINKERN32 "/lib32/ld.so.1"
- #define UCLIBC_DYNAMIC_LINKERN32 "/lib32/ld-uClibc.so.0"
- #define BIONIC_DYNAMIC_LINKERN32 "/system/bin/linker32"
-+#define MUSL_DYNAMIC_LINKERN32 "/lib/ld-musl-mips.so.1"
-+#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-mips.so.1"
-+#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-mips.so.1"
- #define LINUX_DYNAMIC_LINKERN32 \
-   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERN32, UCLIBC_DYNAMIC_LINKERN32, \
--			 BIONIC_DYNAMIC_LINKERN32)
-+			 BIONIC_DYNAMIC_LINKERN32, MUSL_DYNAMIC_LINKERN32)
- 
- #undef LINK_SPEC
- #define LINK_SPEC "\
diff --git a/toolchain/gcc/patches/4.6.2/301-missing-execinfo_h.patch b/toolchain/gcc/patches/4.6.2/301-missing-execinfo_h.patch
deleted file mode 100644
index b3f1e68d3b..0000000000
--- a/toolchain/gcc/patches/4.6.2/301-missing-execinfo_h.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/boehm-gc/include/gc.h
-+++ b/boehm-gc/include/gc.h
-@@ -503,7 +503,7 @@ GC_API GC_PTR GC_malloc_atomic_ignore_of
- #if defined(__linux__) || defined(__GLIBC__)
- # include <features.h>
- # if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1 || __GLIBC__ > 2) \
--     && !defined(__ia64__)
-+     && !defined(__ia64__) && !defined(__UCLIBC__)
- #   ifndef GC_HAVE_BUILTIN_BACKTRACE
- #     define GC_HAVE_BUILTIN_BACKTRACE
- #   endif
diff --git a/toolchain/gcc/patches/4.6.2/302-c99-snprintf.patch b/toolchain/gcc/patches/4.6.2/302-c99-snprintf.patch
deleted file mode 100644
index eda1854df1..0000000000
--- a/toolchain/gcc/patches/4.6.2/302-c99-snprintf.patch
+++ /dev/null
@@ -1,11 +0,0 @@
---- a/libstdc++-v3/include/c_global/cstdio
-+++ b/libstdc++-v3/include/c_global/cstdio
-@@ -137,7 +137,7 @@ namespace std
-   using ::vsprintf;
- } // namespace
- 
--#if _GLIBCXX_USE_C99
-+#if _GLIBCXX_USE_C99 || defined __UCLIBC__
- 
- #undef snprintf
- #undef vfscanf
diff --git a/toolchain/gcc/patches/4.6.2/305-libmudflap-susv3-legacy.patch b/toolchain/gcc/patches/4.6.2/305-libmudflap-susv3-legacy.patch
deleted file mode 100644
index 8e2d15f81a..0000000000
--- a/toolchain/gcc/patches/4.6.2/305-libmudflap-susv3-legacy.patch
+++ /dev/null
@@ -1,47 +0,0 @@
---- a/libmudflap/mf-hooks2.c
-+++ b/libmudflap/mf-hooks2.c
-@@ -421,7 +421,7 @@ WRAPPER2(void, bzero, void *s, size_t n)
- {
-   TRACE ("%s\n", __PRETTY_FUNCTION__);
-   MF_VALIDATE_EXTENT(s, n, __MF_CHECK_WRITE, "bzero region");
--  bzero (s, n);
-+  memset (s, 0, n);
- }
- 
- 
-@@ -431,7 +431,7 @@ WRAPPER2(void, bcopy, const void *src, v
-   TRACE ("%s\n", __PRETTY_FUNCTION__);
-   MF_VALIDATE_EXTENT(src, n, __MF_CHECK_READ, "bcopy src");
-   MF_VALIDATE_EXTENT(dest, n, __MF_CHECK_WRITE, "bcopy dest");
--  bcopy (src, dest, n);
-+  memmove (dest, src, n);
- }
- 
- 
-@@ -441,7 +441,7 @@ WRAPPER2(int, bcmp, const void *s1, cons
-   TRACE ("%s\n", __PRETTY_FUNCTION__);
-   MF_VALIDATE_EXTENT(s1, n, __MF_CHECK_READ, "bcmp 1st arg");
-   MF_VALIDATE_EXTENT(s2, n, __MF_CHECK_READ, "bcmp 2nd arg");
--  return bcmp (s1, s2, n);
-+  return n == 0 ? 0 : memcmp (s1, s2, n);
- }
- 
- 
-@@ -450,7 +450,7 @@ WRAPPER2(char *, index, const char *s, i
-   size_t n = strlen (s);
-   TRACE ("%s\n", __PRETTY_FUNCTION__);
-   MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "index region");
--  return index (s, c);
-+  return strchr (s, c);
- }
- 
- 
-@@ -459,7 +459,7 @@ WRAPPER2(char *, rindex, const char *s,
-   size_t n = strlen (s);
-   TRACE ("%s\n", __PRETTY_FUNCTION__);
-   MF_VALIDATE_EXTENT(s, CLAMPADD(n, 1), __MF_CHECK_READ, "rindex region");
--  return rindex (s, c);
-+  return strrchr (s, c);
- }
- 
- /* XXX:  stpcpy, memccpy */
diff --git a/toolchain/gcc/patches/4.6.2/810-arm-softfloat-libgcc.patch b/toolchain/gcc/patches/4.6.2/810-arm-softfloat-libgcc.patch
deleted file mode 100644
index 60cfde4078..0000000000
--- a/toolchain/gcc/patches/4.6.2/810-arm-softfloat-libgcc.patch
+++ /dev/null
@@ -1,26 +0,0 @@
---- a/gcc/config/arm/linux-elf.h
-+++ b/gcc/config/arm/linux-elf.h
-@@ -60,7 +60,7 @@
-    %{shared:-lc} \
-    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
- 
--#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
-+#define LIBGCC_SPEC "-lgcc"
- 
- #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
- 
---- a/gcc/config/arm/t-linux
-+++ b/gcc/config/arm/t-linux
-@@ -23,7 +23,11 @@ TARGET_LIBGCC2_CFLAGS = -fomit-frame-poi
- 
- LIB1ASMSRC = arm/lib1funcs.asm
- LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
--	_arm_addsubdf3 _arm_addsubsf3
-+	_arm_addsubdf3 _arm_addsubsf3 \
-+	_arm_negdf2 _arm_muldivdf3 _arm_cmpdf2 _arm_unorddf2 \
-+	_arm_fixdfsi _arm_fixunsdfsi _arm_truncdfsf2 \
-+	_arm_negsf2 _arm_muldivsf3 _arm_cmpsf2 _arm_unordsf2 \
-+	_arm_fixsfsi _arm_fixunssfsi
- 
- # MULTILIB_OPTIONS = mhard-float/msoft-float
- # MULTILIB_DIRNAMES = hard-float soft-float
diff --git a/toolchain/gcc/patches/4.6.2/820-libgcc_pic.patch b/toolchain/gcc/patches/4.6.2/820-libgcc_pic.patch
deleted file mode 100644
index 3760ac2b9b..0000000000
--- a/toolchain/gcc/patches/4.6.2/820-libgcc_pic.patch
+++ /dev/null
@@ -1,36 +0,0 @@
---- a/libgcc/Makefile.in
-+++ b/libgcc/Makefile.in
-@@ -747,11 +747,12 @@ $(libgcov-objects): %$(objext): $(gcc_sr
- 
- # Static libraries.
- libgcc.a: $(libgcc-objects)
-+libgcc_pic.a: $(libgcc-s-objects)
- libgcov.a: $(libgcov-objects)
- libunwind.a: $(libunwind-objects)
- libgcc_eh.a: $(libgcc-eh-objects)
- 
--libgcc.a libgcov.a libunwind.a libgcc_eh.a:
-+libgcc.a libgcov.a libunwind.a libgcc_eh.a libgcc_pic.a:
- 	-rm -f $@
- 
- 	objects="$(objects)";					\
-@@ -773,7 +774,7 @@ libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_E
- endif
- 
- ifeq ($(enable_shared),yes)
--all: libgcc_eh.a libgcc_s$(SHLIB_EXT)
-+all: libgcc_eh.a libgcc_pic.a libgcc_s$(SHLIB_EXT)
- ifneq ($(LIBUNWIND),)
- all: libunwind$(SHLIB_EXT)
- endif
-@@ -954,6 +955,10 @@ install-shared:
- 	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
- 	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
- 
-+	$(INSTALL_DATA) libgcc_pic.a $(mapfile) $(DESTDIR)$(inst_libdir)/
-+	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_pic.a
-+	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_pic.a
-+
- 	$(subst @multilib_dir@,$(MULTIDIR),$(subst \
- 		@shlib_base_name@,libgcc_s,$(subst \
- 		@shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))
diff --git a/toolchain/gcc/patches/4.6.2/830-arm_unbreak_armv4t.patch b/toolchain/gcc/patches/4.6.2/830-arm_unbreak_armv4t.patch
deleted file mode 100644
index 37f8f2a54d..0000000000
--- a/toolchain/gcc/patches/4.6.2/830-arm_unbreak_armv4t.patch
+++ /dev/null
@@ -1,13 +0,0 @@
-http://sourceware.org/ml/crossgcc/2008-05/msg00009.html
-
---- a/gcc/config/arm/linux-eabi.h
-+++ b/gcc/config/arm/linux-eabi.h
-@@ -45,7 +45,7 @@
-    The ARM10TDMI core is the default for armv5t, so set
-    SUBTARGET_CPU_DEFAULT to achieve this.  */
- #undef  SUBTARGET_CPU_DEFAULT
--#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi
-+#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm9tdmi
- 
- /* TARGET_BIG_ENDIAN_DEFAULT is set in
-    config.gcc for big endian configurations.  */
diff --git a/toolchain/gcc/patches/4.6.2/840-armv4_pass_fix-v4bx_to_ld.patch b/toolchain/gcc/patches/4.6.2/840-armv4_pass_fix-v4bx_to_ld.patch
deleted file mode 100644
index 67c374d9ad..0000000000
--- a/toolchain/gcc/patches/4.6.2/840-armv4_pass_fix-v4bx_to_ld.patch
+++ /dev/null
@@ -1,19 +0,0 @@
---- a/gcc/config/arm/linux-eabi.h
-+++ b/gcc/config/arm/linux-eabi.h
-@@ -64,10 +64,15 @@
- #undef  GLIBC_DYNAMIC_LINKER
- #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"
- 
-+/* For armv4 we pass --fix-v4bx to linker to support EABI */
-+#undef TARGET_FIX_V4BX_SPEC
-+#define TARGET_FIX_V4BX_SPEC " %{mcpu=arm8|mcpu=arm810|mcpu=strongarm*"\
-+  "|march=armv4|mcpu=fa526|mcpu=fa626:--fix-v4bx}"
-+
- /* At this point, bpabi.h will have clobbered LINK_SPEC.  We want to
-    use the GNU/Linux version, not the generic BPABI version.  */
- #undef  LINK_SPEC
--#define LINK_SPEC BE8_LINK_SPEC						\
-+#define LINK_SPEC BE8_LINK_SPEC TARGET_FIX_V4BX_SPEC			\
-   LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC,				\
- 		       LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
- 
diff --git a/toolchain/gcc/patches/4.6.2/910-mbsd_multi.patch b/toolchain/gcc/patches/4.6.2/910-mbsd_multi.patch
deleted file mode 100644
index 3623d38722..0000000000
--- a/toolchain/gcc/patches/4.6.2/910-mbsd_multi.patch
+++ /dev/null
@@ -1,253 +0,0 @@
-
-	This patch brings over a few features from MirBSD:
-	* -fhonour-copts
-	  If this option is not given, it's warned (depending
-	  on environment variables). This is to catch errors
-	  of misbuilt packages which override CFLAGS themselves.
-	* -Werror-maybe-reset
-	  Has the effect of -Wno-error if GCC_NO_WERROR is
-	  set and not '0', a no-operation otherwise. This is
-	  to be able to use -Werror in "make" but prevent
-	  GNU autoconf generated configure scripts from
-	  freaking out.
-	* Make -fno-strict-aliasing and -fno-delete-null-pointer-checks
-	  the default for -O2/-Os, because they trigger gcc bugs
-	  and can delete code with security implications.
-
-	This patch was authored by Thorsten Glaser <tg at mirbsd.de>
-	with copyright assignment to the FSF in effect.
-
---- a/gcc/c-family/c-opts.c
-+++ b/gcc/c-family/c-opts.c
-@@ -103,6 +103,9 @@ static size_t deferred_count;
- /* Number of deferred options scanned for -include.  */
- static size_t include_cursor;
- 
-+/* Check if a port honours COPTS.  */
-+static int honour_copts = 0;
-+
- static void handle_OPT_d (const char *);
- static void set_std_cxx98 (int);
- static void set_std_cxx0x (int);
-@@ -441,6 +444,9 @@ c_common_handle_option (size_t scode, co
-       global_dc->warning_as_error_requested = value;
-       break;
- 
-+    case OPT_Werror_maybe_reset:
-+      break;
-+
-     case OPT_Wformat:
-       set_Wformat (value);
-       break;
-@@ -584,6 +590,12 @@ c_common_handle_option (size_t scode, co
-       flag_no_builtin = !value;
-       break;
- 
-+    case OPT_fhonour_copts:
-+      if (c_language == clk_c) {
-+        honour_copts++;
-+      }
-+      break;
-+
-     case OPT_fconstant_string_class_:
-       constant_string_class_name = arg;
-       break;
-@@ -1058,6 +1070,47 @@ c_common_init (void)
-       return false;
-     }
- 
-+  if (c_language == clk_c) {
-+    char *ev = getenv ("GCC_HONOUR_COPTS");
-+    int evv;
-+    if (ev == NULL)
-+      evv = -1;
-+    else if ((*ev == '0') || (*ev == '\0'))
-+      evv = 0;
-+    else if (*ev == '1')
-+      evv = 1;
-+    else if (*ev == '2')
-+      evv = 2;
-+    else if (*ev == 's')
-+      evv = -1;
-+    else {
-+      warning (0, "unknown GCC_HONOUR_COPTS value, assuming 1");
-+      evv = 1; /* maybe depend this on something like MIRBSD_NATIVE?  */
-+    }
-+    if (evv == 1) {
-+      if (honour_copts == 0) {
-+        error ("someone does not honour COPTS at all in lenient mode");
-+        return false;
-+      } else if (honour_copts != 1) {
-+        warning (0, "someone does not honour COPTS correctly, passed %d times",
-+         honour_copts);
-+      }
-+    } else if (evv == 2) {
-+      if (honour_copts == 0) {
-+        error ("someone does not honour COPTS at all in strict mode");
-+        return false;
-+      } else if (honour_copts != 1) {
-+        error ("someone does not honour COPTS correctly, passed %d times",
-+         honour_copts);
-+        return false;
-+      }
-+    } else if (evv == 0) {
-+      if (honour_copts != 1)
-+        inform (0, "someone does not honour COPTS correctly, passed %d times",
-+         honour_copts);
-+    }
-+  }
-+
-   return true;
- }
- 
---- a/gcc/c-family/c.opt
-+++ b/gcc/c-family/c.opt
-@@ -363,6 +363,10 @@ Werror-implicit-function-declaration
- C ObjC RejectNegative Warning Alias(Werror=, implicit-function-declaration)
- This switch is deprecated; use -Werror=implicit-function-declaration instead
- 
-+Werror-maybe-reset
-+C ObjC C++ ObjC++
-+; Documented in common.opt
-+
- Wfloat-equal
- C ObjC C++ ObjC++ Var(warn_float_equal) Warning
- Warn if testing floating point numbers for equality
-@@ -794,6 +798,9 @@ C++ ObjC++ Optimization Alias(fexception
- fhonor-std
- C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
- 
-+fhonour-copts
-+C ObjC C++ ObjC++ RejectNegative
-+
- fhosted
- C ObjC
- Assume normal C execution environment
---- a/gcc/common.opt
-+++ b/gcc/common.opt
-@@ -520,6 +520,10 @@ Werror=
- Common Joined
- Treat specified warning as error
- 
-+Werror-maybe-reset
-+Common
-+If environment variable GCC_NO_WERROR is set, act as -Wno-error
-+
- Wextra
- Common Var(extra_warnings) Warning
- Print extra (possibly unwanted) warnings
-@@ -1156,6 +1160,9 @@ fguess-branch-probability
- Common Report Var(flag_guess_branch_prob) Optimization
- Enable guessing of branch probabilities
- 
-+fhonour-copts
-+Common RejectNegative
-+
- ; Nonzero means ignore `#ident' directives.  0 means handle them.
- ; Generate position-independent code for executables if possible
- ; On SVR4 targets, it also controls whether or not to emit a
---- a/gcc/opts.c
-+++ b/gcc/opts.c
-@@ -477,8 +477,6 @@ static const struct default_options defa
-     { OPT_LEVELS_2_PLUS, OPT_fschedule_insns2, NULL, 1 },
- #endif
-     { OPT_LEVELS_2_PLUS, OPT_fregmove, NULL, 1 },
--    { OPT_LEVELS_2_PLUS, OPT_fstrict_aliasing, NULL, 1 },
--    { OPT_LEVELS_2_PLUS, OPT_fstrict_overflow, NULL, 1 },
-     { OPT_LEVELS_2_PLUS, OPT_freorder_blocks, NULL, 1 },
-     { OPT_LEVELS_2_PLUS, OPT_freorder_functions, NULL, 1 },
-     { OPT_LEVELS_2_PLUS, OPT_ftree_vrp, NULL, 1 },
-@@ -494,6 +492,8 @@ static const struct default_options defa
-     { OPT_LEVELS_2_PLUS, OPT_falign_functions, NULL, 1 },
- 
-     /* -O3 optimizations.  */
-+    { OPT_LEVELS_3_PLUS, OPT_fstrict_aliasing, NULL, 1 },
-+    { OPT_LEVELS_3_PLUS, OPT_fstrict_overflow, NULL, 1 },
-     { OPT_LEVELS_3_PLUS, OPT_ftree_loop_distribute_patterns, NULL, 1 },
-     { OPT_LEVELS_3_PLUS, OPT_fpredictive_commoning, NULL, 1 },
-     /* Inlining of functions reducing size is a good idea with -Os
-@@ -1399,6 +1399,17 @@ common_handle_option (struct gcc_options
- 			       opts, opts_set, loc, dc);
-       break;
- 
-+    case OPT_Werror_maybe_reset:
-+      {
-+        char *ev = getenv ("GCC_NO_WERROR");
-+        if ((ev != NULL) && (*ev != '0'))
-+          warnings_are_errors = 0;
-+      }
-+      break;
-+
-+    case OPT_fhonour_copts:
-+      break;
-+
-     case OPT_Wlarger_than_:
-       opts->x_larger_than_size = value;
-       opts->x_warn_larger_than = value != -1;
---- a/gcc/doc/cppopts.texi
-+++ b/gcc/doc/cppopts.texi
-@@ -164,6 +164,11 @@ in older programs.  This warning is on b
- Make all warnings into hard errors.  Source code which triggers warnings
- will be rejected.
- 
-+ at item -Werror-maybe-reset
-+ at opindex Werror-maybe-reset
-+Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
-+variable is set to anything other than 0 or empty.
-+
- @item -Wsystem-headers
- @opindex Wsystem-headers
- Issue warnings for code in system headers.  These are normally unhelpful
---- a/gcc/doc/invoke.texi
-+++ b/gcc/doc/invoke.texi
-@@ -240,7 +240,7 @@ Objective-C and Objective-C++ Dialects}.
- -Wconversion  -Wcoverage-mismatch  -Wno-cpp  -Wno-deprecated  @gol
- -Wno-deprecated-declarations -Wdisabled-optimization  @gol
- -Wno-div-by-zero -Wdouble-promotion -Wempty-body  -Wenum-compare @gol
---Wno-endif-labels -Werror  -Werror=* @gol
-+-Wno-endif-labels -Werror  -Werror=* -Werror-maybe-reset @gol
- -Wfatal-errors  -Wfloat-equal  -Wformat  -Wformat=2 @gol
- -Wno-format-contains-nul -Wno-format-extra-args -Wformat-nonliteral @gol
- -Wformat-security  -Wformat-y2k @gol
-@@ -4497,6 +4497,22 @@ This option is only supported for C and
- @option{-Wall} and by @option{-pedantic}, which can be disabled with
- @option{-Wno-pointer-sign}.
- 
-+ at item -Werror-maybe-reset
-+ at opindex Werror-maybe-reset
-+Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
-+variable is set to anything other than 0 or empty.
-+
-+ at item -fhonour-copts
-+ at opindex fhonour-copts
-+If @env{GCC_HONOUR_COPTS} is set to 1, abort if this option is not
-+given at least once, and warn if it is given more than once.
-+If @env{GCC_HONOUR_COPTS} is set to 2, abort if this option is not
-+given exactly once.
-+If @env{GCC_HONOUR_COPTS} is set to 0 or unset, warn if this option
-+is not given exactly once.
-+The warning is quelled if @env{GCC_HONOUR_COPTS} is set to @samp{s}.
-+This flag and environment variable only affect the C language.
-+
- @item -Wstack-protector
- @opindex Wstack-protector
- @opindex Wno-stack-protector
-@@ -6319,7 +6335,7 @@ so, the first branch is redirected to ei
- second branch or a point immediately following it, depending on whether
- the condition is known to be true or false.
- 
--Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
-+Enabled at levels @option{-O3}.
- 
- @item -fsplit-wide-types
- @opindex fsplit-wide-types
---- a/gcc/java/jvspec.c
-+++ b/gcc/java/jvspec.c
-@@ -627,6 +627,7 @@ lang_specific_pre_link (void)
-      class name.  Append dummy `.c' that can be stripped by set_input so %b
-      is correct.  */ 
-   set_input (concat (main_class_name, "main.c", NULL));
-+  putenv ("GCC_HONOUR_COPTS=s"); /* XXX hack!  */
-   err = do_spec (jvgenmain_spec);
-   if (err == 0)
-     {
diff --git a/toolchain/gcc/patches/4.6.2/920-specs_nonfatal_getenv.patch b/toolchain/gcc/patches/4.6.2/920-specs_nonfatal_getenv.patch
deleted file mode 100644
index 5055ae898e..0000000000
--- a/toolchain/gcc/patches/4.6.2/920-specs_nonfatal_getenv.patch
+++ /dev/null
@@ -1,14 +0,0 @@
---- a/gcc/gcc.c
-+++ b/gcc/gcc.c
-@@ -7772,7 +7772,10 @@ getenv_spec_function (int argc, const ch
- 
-   value = getenv (argv[0]);
-   if (!value)
--    fatal_error ("environment variable %qs not defined", argv[0]);
-+    {
-+      warning (0, "environment variable %qs not defined", argv[0]);
-+      value = "";
-+    }
- 
-   /* We have to escape every character of the environment variable so
-      they are not interpreted as active spec characters.  A
diff --git a/toolchain/gcc/patches/4.6.2/993-arm_insn-opinit-RTX_CODE-fixup.patch b/toolchain/gcc/patches/4.6.2/993-arm_insn-opinit-RTX_CODE-fixup.patch
deleted file mode 100644
index 864f972d1c..0000000000
--- a/toolchain/gcc/patches/4.6.2/993-arm_insn-opinit-RTX_CODE-fixup.patch
+++ /dev/null
@@ -1,15 +0,0 @@
---- a/gcc/config/arm/arm-protos.h
-+++ b/gcc/config/arm/arm-protos.h
-@@ -41,11 +41,11 @@ extern unsigned int arm_dbx_register_num
- extern void arm_output_fn_unwind (FILE *, bool);
-   
- 
--#ifdef RTX_CODE
- extern bool arm_vector_mode_supported_p (enum machine_mode);
- extern bool arm_small_register_classes_for_mode_p (enum machine_mode);
- extern int arm_hard_regno_mode_ok (unsigned int, enum machine_mode);
- extern int const_ok_for_arm (HOST_WIDE_INT);
-+#ifdef RTX_CODE
- extern int arm_split_constant (RTX_CODE, enum machine_mode, rtx,
- 			       HOST_WIDE_INT, rtx, rtx, int);
- extern RTX_CODE arm_canonicalize_comparison (RTX_CODE, rtx *, rtx *);
diff --git a/toolchain/gcc/patches/4.6.2/999-coldfire.patch b/toolchain/gcc/patches/4.6.2/999-coldfire.patch
deleted file mode 100644
index 6083e0bf82..0000000000
--- a/toolchain/gcc/patches/4.6.2/999-coldfire.patch
+++ /dev/null
@@ -1,10 +0,0 @@
---- a/gcc/config.gcc
-+++ b/gcc/config.gcc
-@@ -1804,6 +1804,7 @@ m68k-*-linux*)		# Motorola m68k's runnin
- 	if test x$sjlj != x1; then
- 	    tmake_file="$tmake_file m68k/t-slibgcc-elf-ver"
- 	fi
-+	tmake_file="m68k/t-floatlib m68k/t-m68kbare m68k/t-m68kelf"
- 	;;
- m68k-*-rtems*)
- 	default_m68k_cpu=68020