toolchain: gcc: add gcc 5.2.0

This was boot tested on mipsel32, arm32 and x86 only. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> SVN-Revision: 46611
2015-08-16 20:20:36 +00:00 · 2015-08-16 20:20:36 +00:00 · 32c3af6a19
commit 32c3af6a19
parent 4ab1830682
33 changed files with 1275 additions and 0 deletions
--- a/toolchain/gcc/Config.in
+++ b/toolchain/gcc/Config.in
@ -20,6 +20,11 @@ choice
 		bool "gcc 4.9.x with Linaro enhancements"
 		depends on BROKEN
 	config GCC_USE_VERSION_5
 		select GCC_VERSION_5
 		bool "gcc 5.x"
 		depends on BROKEN
 endchoice
 config GCC_USE_GRAPHITE
--- a/toolchain/gcc/Config.version
+++ b/toolchain/gcc/Config.version
@ -12,6 +12,7 @@ config GCC_VERSION_4_9_LINARO
 config GCC_VERSION
 	string
 	default "4.6.3"	    if GCC_VERSION_4_6_3
 	default "5.2.0"	    if GCC_VERSION_5
 	default "4.6-linaro"    if GCC_VERSION_4_6_LINARO
 	default "4.8-linaro"    if GCC_VERSION_4_8_LINARO
 	default "4.9-linaro"    if GCC_VERSION_4_9_LINARO
@ -28,3 +29,6 @@ config GCC_VERSION_4_8
 config GCC_VERSION_4_9
 	bool
 	default y	if GCC_VERSION_4_9_LINARO
 config GCC_VERSION_5
 	bool
--- a/toolchain/gcc/common.mk
+++ b/toolchain/gcc/common.mk
@ -67,6 +67,9 @@ else
  ifeq ($(PKG_VERSION),4.8.0)
    PKG_MD5SUM:=e6040024eb9e761c3bea348d1fa5abb0
  endif
  ifeq ($(PKG_VERSION),5.2.0)
    PKG_MD5SUM:=a51bcfeb3da7dd4c623e27207ed43467
  endif
 endif
 PATCH_DIR=../patches/$(GCC_VERSION)
--- a/toolchain/gcc/patches/5.2.0/002-case_insensitive.patch
+++ b/toolchain/gcc/patches/5.2.0/002-case_insensitive.patch
@ -0,0 +1,14 @@
 --- a/include/filenames.h
 +++ b/include/filenames.h
@@ -43,11 +43,6 @@ extern "C" {
 #  define IS_DIR_SEPARATOR(c) IS_DOS_DIR_SEPARATOR (c)
 #  define IS_ABSOLUTE_PATH(f) IS_DOS_ABSOLUTE_PATH (f)
 #else /* not DOSish */
 -#  if defined(__APPLE__)
 -#    ifndef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
 -#      define HAVE_CASE_INSENSITIVE_FILE_SYSTEM 1
 -#    endif
 -#  endif /* __APPLE__ */
 #  define HAS_DRIVE_SPEC(f) (0)
 #  define IS_DIR_SEPARATOR(c) IS_UNIX_DIR_SEPARATOR (c)
 #  define IS_ABSOLUTE_PATH(f) IS_UNIX_ABSOLUTE_PATH (f)
--- a/toolchain/gcc/patches/5.2.0/010-documentation.patch
+++ b/toolchain/gcc/patches/5.2.0/010-documentation.patch
@ -0,0 +1,23 @@
 --- a/gcc/Makefile.in
 +++ b/gcc/Makefile.in
@@ -2941,18 +2941,10 @@ doc/gcc.info: $(TEXI_GCC_FILES)
 doc/gccint.info: $(TEXI_GCCINT_FILES)
 doc/cppinternals.info: $(TEXI_CPPINT_FILES)
 -doc/%.info: %.texi
 -	if [ x$(BUILD_INFO) = xinfo ]; then \
 -		$(MAKEINFO) $(MAKEINFOFLAGS) -I . -I $(gcc_docdir) \
 -			-I $(gcc_docdir)/include -o $@ $<; \
 -	fi
 +doc/%.info:
 # Duplicate entry to handle renaming of gccinstall.info
 -doc/gccinstall.info: $(TEXI_GCCINSTALL_FILES)
 -	if [ x$(BUILD_INFO) = xinfo ]; then \
 -		$(MAKEINFO) $(MAKEINFOFLAGS) -I $(gcc_docdir) \
 -			-I $(gcc_docdir)/include -o $@ $<; \
 -	fi
 +doc/gccinstall.info:
 doc/cpp.dvi: $(TEXI_CPP_FILES)
 doc/gcc.dvi: $(TEXI_GCC_FILES)
--- a/toolchain/gcc/patches/5.2.0/020-no-plt-backport.patch
+++ b/toolchain/gcc/patches/5.2.0/020-no-plt-backport.patch
@ -0,0 +1,28 @@
 --- a/gcc/calls.c
 +++ b/gcc/calls.c
@@ -225,6 +225,12 @@ prepare_call_address (tree fndecl_or_typ
 	       && targetm.small_register_classes_for_mode_p (FUNCTION_MODE))
 	      ? force_not_mem (memory_address (FUNCTION_MODE, funexp))
 	      : memory_address (FUNCTION_MODE, funexp));
 +  else if (flag_pic && !flag_plt && fndecl_or_type
 +	   && TREE_CODE (fndecl_or_type) == FUNCTION_DECL
 +	   && !targetm.binds_local_p (fndecl_or_type))
 +    {
 +      funexp = force_reg (Pmode, funexp);
 +    }
   else if (! sibcallp)
     {
 #ifndef NO_FUNCTION_CSE
 --- a/gcc/common.opt
 +++ b/gcc/common.opt
@@ -1779,6 +1779,10 @@ fpie
 Common Report Var(flag_pie,1) Negative(fPIC)
 Generate position-independent code for executables if possible (small mode)
 +fplt
 +Common Report Var(flag_plt) Init(1)
 +Use PLT for PIC calls (-fno-plt: load the address from GOT at call site)
 +
 fplugin=
 Common Joined RejectNegative Var(common_deferred_options) Defer
 Specify a plugin to load
--- a/toolchain/gcc/patches/5.2.0/100-uclibc-conf.patch
+++ b/toolchain/gcc/patches/5.2.0/100-uclibc-conf.patch
@ -0,0 +1,33 @@
 --- 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
--- a/toolchain/gcc/patches/5.2.0/200-musl_config.patch
+++ b/toolchain/gcc/patches/5.2.0/200-musl_config.patch
@ -0,0 +1,199 @@
 --- a/gcc/config.gcc
 +++ b/gcc/config.gcc
@@ -575,7 +575,7 @@ 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"
 # 32-bit x86 processors supported by --with-arch=.  Each processor
 # MUST be separated by exactly one space.
@@ -720,6 +720,9 @@ 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"
       ;;
 --- a/gcc/config/linux.h
 +++ b/gcc/config/linux.h
@@ -32,10 +32,12 @@ see the files COPYING3 and COPYING.RUNTI
 #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 GNU_USER_TARGET_OS_CPP_BUILTINS()			\
@@ -53,18 +55,21 @@ see the files COPYING3 and COPYING.RUNTI
    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 */
@@ -84,21 +89,92 @@ see the files COPYING3 and COPYING.RUNTI
 #define GNU_USER_DYNAMIC_LINKER						\
   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER,	\
 -			 BIONIC_DYNAMIC_LINKER)
 +			 BIONIC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
 #define GNU_USER_DYNAMIC_LINKER32					\
   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, \
 -			 BIONIC_DYNAMIC_LINKER32)
 +			 BIONIC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32)
 #define GNU_USER_DYNAMIC_LINKER64					\
   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, \
 -			 BIONIC_DYNAMIC_LINKER64)
 +			 BIONIC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64)
 #define GNU_USER_DYNAMIC_LINKERX32					\
   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERX32, UCLIBC_DYNAMIC_LINKERX32, \
 -			 BIONIC_DYNAMIC_LINKERX32)
 +			 BIONIC_DYNAMIC_LINKERX32, MUSL_DYNAMIC_LINKERX32)
 /* Whether we have Bionic libc runtime */
 #undef TARGET_HAS_BIONIC
 #define TARGET_HAS_BIONIC (OPTION_BIONIC)
 +/* musl avoids problematic includes by rearranging the include directories.
 + * Unfortunately, this is mostly duplicated from cppdefault.c */
 +#if DEFAULT_LIBC == LIBC_MUSL
 +#define INCLUDE_DEFAULTS_MUSL_GPP			\
 +    { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1,		\
 +      GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },		\
 +    { GPLUSPLUS_TOOL_INCLUDE_DIR, "G++", 1, 1,		\
 +      GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 1 },		\
 +    { GPLUSPLUS_BACKWARD_INCLUDE_DIR, "G++", 1, 1,	\
 +      GPLUSPLUS_INCLUDE_DIR_ADD_SYSROOT, 0 },
 +
 +#ifdef LOCAL_INCLUDE_DIR
 +#define INCLUDE_DEFAULTS_MUSL_LOCAL			\
 +    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 2 },		\
 +    { LOCAL_INCLUDE_DIR, 0, 0, 1, 1, 0 },
 +#else
 +#define INCLUDE_DEFAULTS_MUSL_LOCAL
 +#endif
 +
 +#ifdef PREFIX_INCLUDE_DIR
 +#define INCLUDE_DEFAULTS_MUSL_PREFIX			\
 +    { PREFIX_INCLUDE_DIR, 0, 0, 1, 0, 0},
 +#else
 +#define INCLUDE_DEFAULTS_MUSL_PREFIX
 +#endif
 +
 +#ifdef CROSS_INCLUDE_DIR
 +#define INCLUDE_DEFAULTS_MUSL_CROSS			\
 +    { CROSS_INCLUDE_DIR, "GCC", 0, 0, 0, 0},
 +#else
 +#define INCLUDE_DEFAULTS_MUSL_CROSS
 +#endif
 +
 +#ifdef TOOL_INCLUDE_DIR
 +#define INCLUDE_DEFAULTS_MUSL_TOOL			\
 +    { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1, 0, 0},
 +#else
 +#define INCLUDE_DEFAULTS_MUSL_TOOL
 +#endif
 +
 +#ifdef NATIVE_SYSTEM_HEADER_DIR
 +#define INCLUDE_DEFAULTS_MUSL_NATIVE			\
 +    { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 },	\
 +    { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
 +#else
 +#define INCLUDE_DEFAULTS_MUSL_NATIVE
 +#endif
 +
 +#if defined (CROSS_DIRECTORY_STRUCTURE) && !defined (TARGET_SYSTEM_ROOT)
 +# undef INCLUDE_DEFAULTS_MUSL_LOCAL
 +# define INCLUDE_DEFAULTS_MUSL_LOCAL
 +# undef INCLUDE_DEFAULTS_MUSL_NATIVE
 +# define INCLUDE_DEFAULTS_MUSL_NATIVE
 +#else
 +# undef INCLUDE_DEFAULTS_MUSL_CROSS
 +# define INCLUDE_DEFAULTS_MUSL_CROSS
 +#endif
 +
 +#undef INCLUDE_DEFAULTS
 +#define INCLUDE_DEFAULTS				\
 +  {							\
 +    INCLUDE_DEFAULTS_MUSL_GPP				\
 +    INCLUDE_DEFAULTS_MUSL_PREFIX			\
 +    INCLUDE_DEFAULTS_MUSL_CROSS				\
 +    INCLUDE_DEFAULTS_MUSL_TOOL				\
 +    INCLUDE_DEFAULTS_MUSL_NATIVE			\
 +    { GCC_INCLUDE_DIR, "GCC", 0, 1, 0, 0 },		\
 +    { 0, 0, 0, 0, 0, 0 }				\
 +  }
 +#endif
 +
 #if (DEFAULT_LIBC == LIBC_UCLIBC) && defined (SINGLE_LIBC) /* uClinux */
 /* This is a *uclinux* target.  We don't define below macros to normal linux
    versions, because doing so would require *uclinux* targets to include
 --- 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
 --- 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)) \
   || defined(__DragonFly__) \
   || defined(__FreeBSD_kernel__)
@@ -218,6 +220,7 @@ 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 */
--- a/toolchain/gcc/patches/5.2.0/201-musl_arm.patch
+++ b/toolchain/gcc/patches/5.2.0/201-musl_arm.patch
@ -0,0 +1,56 @@
 From ec39b7c91facdd74fddea95128502c25ec3948a3 Mon Sep 17 00:00:00 2001
 From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
 Date: Wed, 27 May 2015 13:17:11 +0000
 Subject: [PATCH 11/12] [PATCH 4/13] arm musl support
 On behalf of szabolcs.nagy@arm.com
 2015-05-27  Gregor Richards  <gregor.richards@uwaterloo.ca>
 	* config/arm/linux-eabi.h (MUSL_DYNAMIC_LINKER): Define.
 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223749 138bc75d-0d04-0410-961f-82ee72b054a4
 ---
 gcc/config/arm/linux-eabi.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 --- a/gcc/config/arm/linux-eabi.h
 +++ b/gcc/config/arm/linux-eabi.h
@@ -77,6 +77,23 @@
     %{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \
     %{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}"
 +/* For ARM musl currently supports four dynamic linkers:
 +   - ld-musl-arm.so.1 - for the EABI-derived soft-float ABI
 +   - ld-musl-armhf.so.1 - for the EABI-derived hard-float ABI
 +   - ld-musl-armeb.so.1 - for the EABI-derived soft-float ABI, EB
 +   - ld-musl-armebhf.so.1 - for the EABI-derived hard-float ABI, EB
 +   musl does not support the legacy OABI mode.
 +   All the dynamic linkers live in /lib.
 +   We default to soft-float, EL. */
 +#undef  MUSL_DYNAMIC_LINKER
 +#if TARGET_BIG_ENDIAN_DEFAULT
 +#define MUSL_DYNAMIC_LINKER_E "%{mlittle-endian:;:eb}"
 +#else
 +#define MUSL_DYNAMIC_LINKER_E "%{mbig-endian:eb}"
 +#endif
 +#define MUSL_DYNAMIC_LINKER \
 +  "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.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
 --- a/libitm/config/arm/hwcap.cc
 +++ b/libitm/config/arm/hwcap.cc
@@ -40,7 +40,11 @@ int GTM_hwcap HIDDEN = 0
 #ifdef __linux__
 #include <unistd.h>
 +#ifdef __GLIBC__
 #include <sys/fcntl.h>
 +#else
 +#include <fcntl.h>
 +#endif
 #include <elf.h>
 static void __attribute__((constructor))
--- a/toolchain/gcc/patches/5.2.0/202-musl_mips.patch
+++ b/toolchain/gcc/patches/5.2.0/202-musl_mips.patch
@ -0,0 +1,34 @@
 From 8de85695e46ed2bc57c3482b4f995be3a82c405e Mon Sep 17 00:00:00 2001
 From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
 Date: Fri, 8 May 2015 15:16:50 +0000
 Subject: [PATCH 09/12] [PATCH 6/13] mips musl support
 2015-05-08  Gregor Richards  <gregor.richards@uwaterloo.ca>
 	    Szabolcs Nagy  <szabolcs.nagy@arm.com>
 	* config/mips/linux.h (MUSL_DYNAMIC_LINKER32): Define.
 	(MUSL_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKERN32): Define.
 	(GNU_USER_DYNAMIC_LINKERN32): Update.
 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@222915 138bc75d-0d04-0410-961f-82ee72b054a4
 ---
 gcc/config/mips/linux.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)
 --- a/gcc/config/mips/linux.h
 +++ b/gcc/config/mips/linux.h
@@ -37,7 +37,13 @@ along with GCC; see the file COPYING3.
 #define UCLIBC_DYNAMIC_LINKERN32 \
   "%{mnan=2008:/lib32/ld-uClibc-mipsn8.so.0;:/lib32/ld-uClibc.so.0}"
 +#undef MUSL_DYNAMIC_LINKER32
 +#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-mips%{EL:el}%{msoft-float:-sf}.so.1"
 +#undef MUSL_DYNAMIC_LINKER64
 +#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-mips64%{EL:el}%{msoft-float:-sf}.so.1"
 +#define MUSL_DYNAMIC_LINKERN32 "/lib/ld-musl-mipsn32%{EL:el}%{msoft-float:-sf}.so.1"
 +
 #define BIONIC_DYNAMIC_LINKERN32 "/system/bin/linker32"
 #define GNU_USER_DYNAMIC_LINKERN32 \
   CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERN32, UCLIBC_DYNAMIC_LINKERN32, \
 -                         BIONIC_DYNAMIC_LINKERN32)
 +                         BIONIC_DYNAMIC_LINKERN32, MUSL_DYNAMIC_LINKERN32)
--- a/toolchain/gcc/patches/5.2.0/203-musl_powerpc.patch
+++ b/toolchain/gcc/patches/5.2.0/203-musl_powerpc.patch
@ -0,0 +1,100 @@
 --- a/gcc/config.gcc
 +++ b/gcc/config.gcc
@@ -2410,6 +2410,10 @@ powerpc*-*-linux*)
 	    powerpc*-*-linux*paired*)
 		tm_file="${tm_file} rs6000/750cl.h" ;;
 	esac
 +        case ${target} in
 +            *-linux*-musl*)
 +                enable_secureplt=yes ;;
 +        esac
 	if test x${enable_secureplt} = xyes; then
 		tm_file="rs6000/secureplt.h ${tm_file}"
 	fi
 --- a/gcc/config/rs6000/linux64.h
 +++ b/gcc/config/rs6000/linux64.h
@@ -365,17 +365,21 @@ extern int dot_symbols;
 #endif
 #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
 #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
 +#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-powerpc%{msoft-float:-sf}.so.1"
 +#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-powerpc64.so.1"
 #if DEFAULT_LIBC == LIBC_UCLIBC
 -#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
 +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}"
 #elif DEFAULT_LIBC == LIBC_GLIBC
 -#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
 +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}"
 +#elif DEFAULT_LIBC == LIBC_MUSL
 +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}"
 #else
 #error "Unsupported DEFAULT_LIBC"
 #endif
 #define GNU_USER_DYNAMIC_LINKER32 \
 -  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32)
 +  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32)
 #define GNU_USER_DYNAMIC_LINKER64 \
 -  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64)
 +  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64)
 #undef  DEFAULT_ASM_ENDIAN
 #if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN)
 --- a/gcc/config/rs6000/secureplt.h
 +++ b/gcc/config/rs6000/secureplt.h
@@ -18,3 +18,4 @@ along with GCC; see the file COPYING3.
 <http://www.gnu.org/licenses/>.  */
 #define CC1_SECURE_PLT_DEFAULT_SPEC "-msecure-plt"
 +#define LINK_SECURE_PLT_DEFAULT_SPEC "--secure-plt"
 --- a/gcc/config/rs6000/sysv4.h
 +++ b/gcc/config/rs6000/sysv4.h
@@ -537,6 +537,9 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF
 #ifndef CC1_SECURE_PLT_DEFAULT_SPEC
 #define CC1_SECURE_PLT_DEFAULT_SPEC ""
 #endif
 +#ifndef LINK_SECURE_PLT_DEFAULT_SPEC
 +#define LINK_SECURE_PLT_DEFAULT_SPEC ""
 +#endif
 /* Pass -G xxx to the compiler.  */
 #undef CC1_SPEC
@@ -586,7 +589,8 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF
 /* Override the default target of the linker.  */
 #define	LINK_TARGET_SPEC \
 -  ENDIAN_SELECT("", " --oformat elf32-powerpcle", "")
 +  ENDIAN_SELECT("", " --oformat elf32-powerpcle", "") \
 +  "%{!mbss-plt: %{!msecure-plt: %(link_secure_plt_default)}}"
 /* Any specific OS flags.  */
 #define LINK_OS_SPEC "\
@@ -764,15 +768,18 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF
 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
 #define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
 +#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-powerpc%{msoft-float:-sf}.so.1"
 #if DEFAULT_LIBC == LIBC_UCLIBC
 -#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
 +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}"
 +#elif DEFAULT_LIBC == LIBC_MUSL
 +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}"
 #elif !defined (DEFAULT_LIBC) || DEFAULT_LIBC == LIBC_GLIBC
 -#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
 +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}"
 #else
 #error "Unsupported DEFAULT_LIBC"
 #endif
 #define GNU_USER_DYNAMIC_LINKER \
 -  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER)
 +  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
 #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
   %{rdynamic:-export-dynamic} \
@@ -895,6 +902,7 @@ ncrtn.o%s"
   { "link_os_openbsd",		LINK_OS_OPENBSD_SPEC },			\
   { "link_os_default",		LINK_OS_DEFAULT_SPEC },			\
   { "cc1_secure_plt_default",	CC1_SECURE_PLT_DEFAULT_SPEC },		\
 +  { "link_secure_plt_default",	LINK_SECURE_PLT_DEFAULT_SPEC },		\
   { "cpp_os_ads",		CPP_OS_ADS_SPEC },			\
   { "cpp_os_yellowknife",	CPP_OS_YELLOWKNIFE_SPEC },		\
   { "cpp_os_mvme",		CPP_OS_MVME_SPEC },			\
--- a/toolchain/gcc/patches/5.2.0/204-musl_sh.patch
+++ b/toolchain/gcc/patches/5.2.0/204-musl_sh.patch
@ -0,0 +1,17 @@
 --- a/gcc/config/sh/linux.h
 +++ b/gcc/config/sh/linux.h
@@ -43,7 +43,14 @@ along with GCC; see the file COPYING3.
 #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
 +#if TARGET_BIG_ENDIAN_DEFAULT /* BE */
 +#define MUSL_DYNAMIC_LINKER_E "eb"
 +#else
 +#define MUSL_DYNAMIC_LINKER_E
 +#endif
 +
 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
 +#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-sh" MUSL_DYNAMIC_LINKER_E ".so.1"
 #undef SUBTARGET_LINK_EMUL_SUFFIX
 #define SUBTARGET_LINK_EMUL_SUFFIX "_linux"
--- a/toolchain/gcc/patches/5.2.0/205-musl_x86.patch
+++ b/toolchain/gcc/patches/5.2.0/205-musl_x86.patch
@ -0,0 +1,72 @@
 From 606b5b76926d42d26c08c7400c38afe07e18e3cd Mon Sep 17 00:00:00 2001
 From: ktkachov <ktkachov@138bc75d-0d04-0410-961f-82ee72b054a4>
 Date: Fri, 15 May 2015 13:20:01 +0000
 Subject: [PATCH 10/12] [PATCH 9/13] x86 musl support
 On behalf of Szabolcs Nagy.
 2015-05-15  Gregor Richards  <gregor.richards@uwaterloo.ca>
 	* config/i386/linux.h (MUSL_DYNAMIC_LINKER): Define.
 	* config/i386/linux64.h (MUSL_DYNAMIC_LINKER32): Define.
 	(MUSL_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKERX32): Define.
 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223218 138bc75d-0d04-0410-961f-82ee72b054a4
 ---
 gcc/config/i386/linux.h   | 3 +++
 gcc/config/i386/linux64.h | 7 +++++++
 2 files changed, 10 insertions(+)
 --- a/gcc/config/i386/linux.h
 +++ b/gcc/config/i386/linux.h
@@ -21,3 +21,6 @@ along with GCC; see the file COPYING3.
 #define GNU_USER_LINK_EMULATION "elf_i386"
 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
 +
 +#undef MUSL_DYNAMIC_LINKER
 +#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-i386.so.1"
 --- a/gcc/config/i386/linux64.h
 +++ b/gcc/config/i386/linux64.h
@@ -30,3 +30,10 @@ see the files COPYING3 and COPYING.RUNTI
 #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
 #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
 #define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"
 +
 +#undef MUSL_DYNAMIC_LINKER32
 +#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-i386.so.1"
 +#undef MUSL_DYNAMIC_LINKER64
 +#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-x86_64.so.1"
 +#undef MUSL_DYNAMIC_LINKERX32
 +#define MUSL_DYNAMIC_LINKERX32 "/lib/ld-musl-x32.so.1"
 --- a/libitm/config/linux/x86/tls.h
 +++ b/libitm/config/linux/x86/tls.h
@@ -25,16 +25,19 @@
 #ifndef LIBITM_X86_TLS_H
 #define LIBITM_X86_TLS_H 1
 -#if defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 10)
 +#if defined(__GLIBC_PREREQ)
 +#if __GLIBC_PREREQ(2, 10)
 /* Use slots in the TCB head rather than __thread lookups.
    GLIBC has reserved words 10 through 13 for TM.  */
 #define HAVE_ARCH_GTM_THREAD 1
 #define HAVE_ARCH_GTM_THREAD_DISP 1
 #endif
 +#endif
 #include "config/generic/tls.h"
 -#if defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 10)
 +#if defined(__GLIBC_PREREQ)
 +#if __GLIBC_PREREQ(2, 10)
 namespace GTM HIDDEN {
 #ifdef __x86_64__
@@ -101,5 +104,6 @@ static inline void set_abi_disp(struct a
 } // namespace GTM
 #endif /* >= GLIBC 2.10 */
 +#endif
 #endif // LIBITM_X86_TLS_H
--- a/toolchain/gcc/patches/5.2.0/206-musl_aarch64.patch
+++ b/toolchain/gcc/patches/5.2.0/206-musl_aarch64.patch
@ -0,0 +1,29 @@
 From 3640f7722df1c5e39d1d4980e3dd51fbda45912c Mon Sep 17 00:00:00 2001
 From: jgreenhalgh <jgreenhalgh@138bc75d-0d04-0410-961f-82ee72b054a4>
 Date: Wed, 27 May 2015 16:46:39 +0000
 Subject: [PATCH 12/12] [PATCH 3/13] aarch64 musl support
 gcc/Changelog:
 2015-05-27  Gregor Richards  <gregor.richards@uwaterloo.ca>
 	    Szabolcs Nagy  <szabolcs.nagy@arm.com>
 	* config/aarch64/aarch64-linux.h (MUSL_DYNAMIC_LINKER): Define.
 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@223766 138bc75d-0d04-0410-961f-82ee72b054a4
 ---
 gcc/config/aarch64/aarch64-linux.h | 3 +++
 1 file changed, 3 insertions(+)
 --- a/gcc/config/aarch64/aarch64-linux.h
 +++ b/gcc/config/aarch64/aarch64-linux.h
@@ -23,6 +23,9 @@
 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
 +#undef MUSL_DYNAMIC_LINKER
 +#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
 +
 #undef  ASAN_CC1_SPEC
 #define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"
--- a/toolchain/gcc/patches/5.2.0/207-musl_fixincludes.patch
+++ b/toolchain/gcc/patches/5.2.0/207-musl_fixincludes.patch
@ -0,0 +1,12 @@
 --- a/fixincludes/mkfixinc.sh
 +++ b/fixincludes/mkfixinc.sh
@@ -19,7 +19,8 @@ case $machine in
     powerpc-*-eabi*    | \
     powerpc-*-rtems*   | \
     powerpcle-*-eabisim* | \
 -    powerpcle-*-eabi* )
 +    powerpcle-*-eabi* | \
 +    *-musl* )
 	#  IF there is no include fixing,
 	#  THEN create a no-op fixer and exit
 	(echo "#! /bin/sh" ; echo "exit 0" ) > ${target}
--- a/toolchain/gcc/patches/5.2.0/208-musl_gomp.patch
+++ b/toolchain/gcc/patches/5.2.0/208-musl_gomp.patch
@ -0,0 +1,11 @@
 --- a/libgomp/config/posix/time.c
 +++ b/libgomp/config/posix/time.c
@@ -29,6 +29,8 @@
    The following implementation uses the most simple POSIX routines.
    If present, POSIX 4 clocks should be used instead.  */
 +#define _POSIX_C_SOURCE 199309L /* for clocks */
 +
 #include "libgomp.h"
 #include <unistd.h>
 #if TIME_WITH_SYS_TIME
--- a/toolchain/gcc/patches/5.2.0/209-musl_libstdc++.patch
+++ b/toolchain/gcc/patches/5.2.0/209-musl_libstdc++.patch
@ -0,0 +1,26 @@
 --- a/libstdc++-v3/configure.host
 +++ b/libstdc++-v3/configure.host
@@ -274,6 +274,13 @@ case "${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 [ "$bionic" = "yes" ]; then
@@ -282,6 +289,9 @@ case "${host_os}" in
       os_include_dir="os/gnu-linux"
     fi
     ;;
 +
 +    esac
 +    ;;
   hpux*)
     os_include_dir="os/hpux"
     ;;
--- a/toolchain/gcc/patches/5.2.0/230-musl_libssp.patch
+++ b/toolchain/gcc/patches/5.2.0/230-musl_libssp.patch
@ -0,0 +1,13 @@
 --- a/gcc/gcc.c
 +++ b/gcc/gcc.c
@@ -727,7 +727,9 @@ proper position among the other output f
 #endif
 #ifndef LINK_SSP_SPEC
 -#ifdef TARGET_LIBC_PROVIDES_SSP
 +#if DEFAULT_LIBC == LIBC_MUSL
 +#define LINK_SSP_SPEC "-lssp_nonshared"
 +#elif defined(TARGET_LIBC_PROVIDES_SSP)
 #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
 		       "|fstack-protector-strong|fstack-protector-explicit:}"
 #else
--- a/toolchain/gcc/patches/5.2.0/800-arm_v5te_no_ldrd_strd.patch
+++ b/toolchain/gcc/patches/5.2.0/800-arm_v5te_no_ldrd_strd.patch
@ -0,0 +1,11 @@
 --- a/gcc/config/arm/arm.h
 +++ b/gcc/config/arm/arm.h
@@ -285,7 +285,7 @@ extern void (*arm_lang_output_object_att
 /* Thumb-1 only.  */
 #define TARGET_THUMB1_ONLY		(TARGET_THUMB1 && !arm_arch_notm)
 -#define TARGET_LDRD			(arm_arch5e && ARM_DOUBLEWORD_ALIGN \
 +#define TARGET_LDRD			(arm_arch6 && ARM_DOUBLEWORD_ALIGN \
                                          && !TARGET_THUMB1)
 #define TARGET_CRC32			(arm_arch_crc)
--- a/toolchain/gcc/patches/5.2.0/810-arm-softfloat-libgcc.patch
+++ b/toolchain/gcc/patches/5.2.0/810-arm-softfloat-libgcc.patch
@ -0,0 +1,25 @@
 --- a/libgcc/config/arm/t-linux
 +++ b/libgcc/config/arm/t-linux
@@ -1,6 +1,10 @@
 LIB1ASMSRC = arm/lib1funcs.S
 LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_lnx _clzsi2 _clzdi2 \
 -	_ctzsi2 _arm_addsubdf3 _arm_addsubsf3
 +	_ctzsi2 _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
 # Just for these, we omit the frame pointer since it makes such a big
 # difference.
 --- a/gcc/config/arm/linux-elf.h
 +++ b/gcc/config/arm/linux-elf.h
@@ -60,8 +60,6 @@
    %{shared:-lc} \
    %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
 -#define LIBGCC_SPEC "%{mfloat-abi=soft*:-lfloat} -lgcc"
 -
 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
 #define LINUX_TARGET_LINK_SPEC  "%{h*} \
--- a/toolchain/gcc/patches/5.2.0/820-libgcc_pic.patch
+++ b/toolchain/gcc/patches/5.2.0/820-libgcc_pic.patch
@ -0,0 +1,36 @@
 --- a/libgcc/Makefile.in
 +++ b/libgcc/Makefile.in
@@ -887,11 +887,12 @@ $(libgcov-driver-objects): %$(objext): $
 # 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)";					\
@@ -913,7 +914,7 @@ 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
@@ -1108,6 +1109,10 @@ 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))))
--- a/toolchain/gcc/patches/5.2.0/830-arm_unbreak_armv4t.patch
+++ b/toolchain/gcc/patches/5.2.0/830-arm_unbreak_armv4t.patch
@ -0,0 +1,13 @@
 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.  */
--- a/toolchain/gcc/patches/5.2.0/840-armv4_pass_fix-v4bx_to_ld.patch
+++ b/toolchain/gcc/patches/5.2.0/840-armv4_pass_fix-v4bx_to_ld.patch
@ -0,0 +1,19 @@
 --- a/gcc/config/arm/linux-eabi.h
 +++ b/gcc/config/arm/linux-eabi.h
@@ -94,10 +94,15 @@
 #define MUSL_DYNAMIC_LINKER \
   "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
 +/* 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 EABI_LINK_SPEC					\
 +#define LINK_SPEC EABI_LINK_SPEC TARGET_FIX_V4BX_SPEC			\
   LINUX_OR_ANDROID_LD (LINUX_TARGET_LINK_SPEC,				\
 		       LINUX_TARGET_LINK_SPEC " " ANDROID_LINK_SPEC)
--- a/toolchain/gcc/patches/5.2.0/850-use_shared_libgcc.patch
+++ b/toolchain/gcc/patches/5.2.0/850-use_shared_libgcc.patch
@ -0,0 +1,47 @@
 --- a/gcc/config/arm/linux-eabi.h
 +++ b/gcc/config/arm/linux-eabi.h
@@ -131,10 +131,6 @@
 #define ENDFILE_SPEC \
   LINUX_OR_ANDROID_LD (GNU_USER_TARGET_ENDFILE_SPEC, ANDROID_ENDFILE_SPEC)
 -/* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we
 -   do not use -lfloat.  */
 -#undef LIBGCC_SPEC
 -
 /* Clear the instruction cache from `beg' to `end'.  This is
    implemented in lib1funcs.S, so ensure an error if this definition
    is used.  */
 --- a/gcc/config/linux.h
 +++ b/gcc/config/linux.h
@@ -51,6 +51,10 @@ see the files COPYING3 and COPYING.RUNTI
 	builtin_assert ("system=posix");			\
     } while (0)
 +#ifndef LIBGCC_SPEC
 +#define LIBGCC_SPEC "%{static|static-libgcc:-lgcc}%{!static:%{!static-libgcc:-lgcc_s}}"
 +#endif
 +
 /* Determine which dynamic linker to use depending on whether GLIBC or
    uClibc or Bionic is the default C library and whether
    -muclibc or -mglibc or -mbionic has been passed to change the default.  */
 --- a/libgcc/mkmap-symver.awk
 +++ b/libgcc/mkmap-symver.awk
@@ -132,5 +132,5 @@ function output(lib) {
   else if (inherit[lib])
     printf("} %s;\n", inherit[lib]);
   else
 -    printf ("\n  local:\n\t*;\n};\n");
 +    printf ("\n\t*;\n};\n");
 }
 --- a/gcc/config/rs6000/linux.h
 +++ b/gcc/config/rs6000/linux.h
@@ -56,6 +56,9 @@
 #undef	CPP_OS_DEFAULT_SPEC
 #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
 +#undef LIBGCC_SPEC
 +#define LIBGCC_SPEC "%{!static:%{!static-libgcc:-lgcc_s}} -lgcc"
 +
 #undef  LINK_SHLIB_SPEC
 #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
--- a/toolchain/gcc/patches/5.2.0/851-libgcc_no_compat.patch
+++ b/toolchain/gcc/patches/5.2.0/851-libgcc_no_compat.patch
@ -0,0 +1,12 @@
 --- a/libgcc/config/t-libunwind
 +++ b/libgcc/config/t-libunwind
@@ -2,8 +2,7 @@
 HOST_LIBGCC2_CFLAGS += -DUSE_GAS_SYMVER
 -LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c \
 -  $(srcdir)/unwind-compat.c $(srcdir)/unwind-dw2-fde-compat.c
 +LIB2ADDEH = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
 LIB2ADDEHSTATIC = $(srcdir)/unwind-sjlj.c $(srcdir)/unwind-c.c
 # Override the default value from t-slibgcc-elf-ver and mention -lunwind
--- a/toolchain/gcc/patches/5.2.0/860-use_eh_frame.patch
+++ b/toolchain/gcc/patches/5.2.0/860-use_eh_frame.patch
@ -0,0 +1,43 @@
 --- a/libgcc/unwind-dw2-fde-dip.c
 +++ b/libgcc/unwind-dw2-fde-dip.c
@@ -46,34 +46,13 @@
 #include "unwind-compat.h"
 #include "gthr.h"
 -#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
 -    && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ > 2) \
 -	|| (__GLIBC__ == 2 && __GLIBC_MINOR__ == 2 && defined(DT_CONFIG)))
 -# define USE_PT_GNU_EH_FRAME
 -#endif
 -
 -#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
 -    && defined(__BIONIC__)
 -# define USE_PT_GNU_EH_FRAME
 -#endif
 -
 -#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
 -    && defined(TARGET_DL_ITERATE_PHDR) \
 -    && (defined(__DragonFly__) || defined(__FreeBSD__))
 -# define ElfW __ElfN
 -# define USE_PT_GNU_EH_FRAME
 -#endif
 -
 -#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
 -    && defined(__OpenBSD__)
 -# define ElfW(type) Elf_##type
 -# define USE_PT_GNU_EH_FRAME
 -#endif
 -
 -#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) \
 -    && defined(TARGET_DL_ITERATE_PHDR) \
 -    && defined(__sun__) && defined(__svr4__)
 +#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR)
 # define USE_PT_GNU_EH_FRAME
 +# ifdef __OpenBSD__
 +#  define ElfW(type) Elf_##type
 +# elif defined(__FreeBSD__) && __FreeBSD__ >= 7
 +#  define ElfW __ElfN
 +# endif
 #endif
 #if defined(USE_PT_GNU_EH_FRAME)
--- a/toolchain/gcc/patches/5.2.0/870-ppc_no_crtsavres.patch
+++ b/toolchain/gcc/patches/5.2.0/870-ppc_no_crtsavres.patch
@ -0,0 +1,11 @@
 --- a/gcc/config/rs6000/rs6000.c
 +++ b/gcc/config/rs6000/rs6000.c
@@ -21453,7 +21453,7 @@ rs6000_savres_strategy (rs6000_stack_t *
   /* Define cutoff for using out-of-line functions to save registers.  */
   if (DEFAULT_ABI == ABI_V4 || TARGET_ELF)
     {
 -      if (!optimize_size)
 +      if (1)
 	{
 	  strategy |= SAVE_INLINE_FPRS | REST_INLINE_FPRS;
 	  strategy |= SAVE_INLINE_GPRS | REST_INLINE_GPRS;
--- a/toolchain/gcc/patches/5.2.0/880-no_java_section.patch
+++ b/toolchain/gcc/patches/5.2.0/880-no_java_section.patch
@ -0,0 +1,11 @@
 --- a/gcc/defaults.h
 +++ b/gcc/defaults.h
@@ -380,7 +380,7 @@ see the files COPYING3 and COPYING.RUNTI
 /* If we have named section and we support weak symbols, then use the
    .jcr section for recording java classes which need to be registered
    at program start-up time.  */
 -#if defined (TARGET_ASM_NAMED_SECTION) && SUPPORTS_WEAK
 +#if 0 && defined (TARGET_ASM_NAMED_SECTION) && SUPPORTS_WEAK
 #ifndef JCR_SECTION_NAME
 #define JCR_SECTION_NAME ".jcr"
 #endif
--- a/toolchain/gcc/patches/5.2.0/900-bad-mips16-crt.patch
+++ b/toolchain/gcc/patches/5.2.0/900-bad-mips16-crt.patch
@ -0,0 +1,9 @@
 --- a/libgcc/config/mips/t-mips16
 +++ b/libgcc/config/mips/t-mips16
@@ -43,3 +43,6 @@ SYNC_CFLAGS = -mno-mips16
 # Version these symbols if building libgcc.so.
 SHLIB_MAPFILES += $(srcdir)/config/mips/libgcc-mips16.ver
 +
 +CRTSTUFF_T_CFLAGS += -mno-mips16
 +CRTSTUFF_T_CFLAGS_S += -mno-mips16
--- a/toolchain/gcc/patches/5.2.0/910-mbsd_multi.patch
+++ b/toolchain/gcc/patches/5.2.0/910-mbsd_multi.patch
@ -0,0 +1,222 @@
 	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.
 	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
@@ -122,6 +122,9 @@ static int class_dump_flags;
 /* Whether any standard preincluded header has been preincluded.  */
 static bool done_preinclude;
 +/* 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_cxx11 (int);
@@ -449,6 +452,12 @@ 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;
@@ -1034,6 +1043,47 @@ 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
@@ -431,6 +431,10 @@ Wfloat-conversion
 C ObjC C++ ObjC++ Var(warn_float_conversion) LangEnabledBy(C ObjC C++ ObjC++,Wconversion)
 Warn for implicit type conversions that cause loss of floating point precision
 +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
@@ -1161,6 +1165,9 @@ 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
@@ -561,6 +561,10 @@ 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
@@ -1360,6 +1364,9 @@ 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
@@ -1699,6 +1699,17 @@ 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
@@ -163,6 +163,11 @@ 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
@@ -251,7 +251,7 @@ Objective-C and Objective-C++ Dialects}.
 -Wdisabled-optimization @gol
 -Wno-discarded-qualifiers -Wno-discarded-array-qualifiers @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-signedness  -Wformat-y2k @gol
@@ -5371,6 +5371,22 @@ This option is only supported for C and
 @option{-Wall} and by @option{-Wpedantic}, 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
@@ -7844,7 +7860,7 @@ 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
@@ -629,6 +629,7 @@ 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)
     {
--- a/toolchain/gcc/patches/5.2.0/920-specs_nonfatal_getenv.patch
+++ b/toolchain/gcc/patches/5.2.0/920-specs_nonfatal_getenv.patch
@ -0,0 +1,15 @@
 --- a/gcc/gcc.c
 +++ b/gcc/gcc.c
@@ -8807,8 +8807,10 @@ getenv_spec_function (int argc, const ch
   value = getenv (argv[0]);
   if (!value)
 -    fatal_error (input_location,
 -		 "environment variable %qs not defined", argv[0]);
 +    {
 +      warning (input_location, "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
--- a/toolchain/gcc/patches/5.2.0/930-fix-mips-noexecstack.patch
+++ b/toolchain/gcc/patches/5.2.0/930-fix-mips-noexecstack.patch
@ -0,0 +1,111 @@
 From da45b3fde60095756f5f6030f6012c23a3d34429 Mon Sep 17 00:00:00 2001
 From: Andrew McDonnell <bugs@andrewmcdonnell.net>
 Date: Fri, 3 Oct 2014 19:09:00 +0930
 Subject: Add .note.GNU-stack section
 See http://lists.busybox.net/pipermail/uclibc/2014-October/048671.html
 Below copied from https://gcc.gnu.org/ml/gcc-patches/2014-09/msg02430.html
 Re: [Patch, MIPS] Add .note.GNU-stack section
    From: Steve Ellcey <sellcey at mips dot com>
 On Wed, 2014-09-10 at 10:15 -0700, Eric Christopher wrote:
 >
 >
 > On Wed, Sep 10, 2014 at 9:27 AM, <pinskia@gmail.com> wrote:
 >         This works except you did not update the assembly files in
 >         libgcc or glibc. We (Cavium) have the same patch in our tree
 >         for a few released versions.
 > Mind just checking yours in then Andrew?
 > Thanks!
 > -eric
 I talked to Andrew about what files he changed in GCC and created and
 tested this new patch.  Andrew also mentioned changing some assembly
 files in glibc but I don't see any use of '.section .note.GNU-stack' in
 any assembly files in glibc (for any platform) so I wasn't planning on
 creating a glibc to add them to mips glibc assembly language files.
 OK to check in this patch?
 Steve Ellcey
 sellcey@mips.com
 2014-09-26  Steve Ellcey  <sellcey@mips.com>
 ---
 gcc/config/mips/mips.c          | 3 +++
 libgcc/config/mips/crti.S       | 4 ++++
 libgcc/config/mips/crtn.S       | 3 +++
 libgcc/config/mips/mips16.S     | 4 ++++
 libgcc/config/mips/vr4120-div.S | 4 ++++
 5 files changed, 18 insertions(+)
 --- a/gcc/config/mips/mips.c
 +++ b/gcc/config/mips/mips.c
@@ -19621,6 +19621,9 @@ mips_lra_p (void)
 #undef TARGET_LRA_P
 #define TARGET_LRA_P mips_lra_p
 +#undef TARGET_ASM_FILE_END
 +#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
 +
 struct gcc_target targetm = TARGET_INITIALIZER;
 #include "gt-mips.h"
 --- a/libgcc/config/mips/crti.S
 +++ b/libgcc/config/mips/crti.S
@@ -21,6 +21,10 @@ a copy of the GCC Runtime Library Except
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 +
 +/* An executable stack is *not* required for these functions.  */
 +	.section .note.GNU-stack,"",%progbits
 +
 /* 4 slots for argument spill area.  1 for cpreturn, 1 for stack.
    Return spill offset of 40 and 20.  Aligned to 16 bytes for n32.  */
 --- a/libgcc/config/mips/crtn.S
 +++ b/libgcc/config/mips/crtn.S
@@ -21,6 +21,9 @@ a copy of the GCC Runtime Library Except
 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 <http://www.gnu.org/licenses/>.  */
 +/* An executable stack is *not* required for these functions.  */
 +	.section .note.GNU-stack,"",%progbits
 +
 /* 4 slots for argument spill area.  1 for cpreturn, 1 for stack.
    Return spill offset of 40 and 20.  Aligned to 16 bytes for n32.  */
 --- a/libgcc/config/mips/mips16.S
 +++ b/libgcc/config/mips/mips16.S
@@ -48,6 +48,10 @@ see the files COPYING3 and COPYING.RUNTI
    values using the soft-float calling convention, but do the actual
    operation using the hard floating point instructions.  */
 +/* An executable stack is *not* required for these functions.  */
 +	.section .note.GNU-stack,"",%progbits
 +	.previous
 +
 #if defined _MIPS_SIM && (_MIPS_SIM == _ABIO32 || _MIPS_SIM == _ABIO64)
 /* This file contains 32-bit assembly code.  */
 --- a/libgcc/config/mips/vr4120-div.S
 +++ b/libgcc/config/mips/vr4120-div.S
@@ -26,6 +26,10 @@ see the files COPYING3 and COPYING.RUNTI
    -mfix-vr4120.  div and ddiv do not give the correct result when one
    of the operands is negative.  */
 +/* An executable stack is *not* required for these functions.  */
 +	.section .note.GNU-stack,"",%progbits
 +	.previous
 +
 	.set	nomips16
 #define DIV								\
--- a/toolchain/gcc/patches/5.2.0/940-no-clobber-stamp-bits.patch
+++ b/toolchain/gcc/patches/5.2.0/940-no-clobber-stamp-bits.patch
@ -0,0 +1,11 @@
 --- a/libstdc++-v3/include/Makefile.in
 +++ b/libstdc++-v3/include/Makefile.in
@@ -1382,7 +1382,7 @@ stamp-bits: ${bits_headers}
 	@$(STAMP) stamp-bits
 stamp-bits-sup: stamp-bits ${bits_sup_headers}
 -	@-cd ${bits_builddir} && $(LN_S) $? . 2>/dev/null
 +	@-cd ${bits_builddir} && $(LN_S) $(filter-out stamp-bits,$?) . 2>/dev/null
 	@$(STAMP) stamp-bits-sup
 stamp-c_base: ${c_base_headers}