## Stage 1 platforms that require particular configuration
if [ "${STAGE_INIT}" = 'stage1' ]; then
	case "${platform}" in
		*-linux-musl)
			# MUSL libc platforms do not support GCC sanitizer (which relies on glibc features)
			BUILD_CC_GCC_CONFIGURE_EXTRA="${BUILD_CC_GCC_CONFIGURE_EXTRA} --disable-libsanitizer --disable-target-libsanitizer"



			;;
	esac
fi

### Do pre-compilation steps
for prescript in scripts/pre/*; do
	if [ ! -x "${prescript}" ]; then

## Stage 1 platforms that require particular configuration
if [ "${STAGE_INIT}" = 'stage1' ]; then
	case "${platform}" in
		*-linux-musl)
			# MUSL libc platforms do not support GCC sanitizer (which relies on glibc features)
			BUILD_CC_GCC_CONFIGURE_EXTRA="${BUILD_CC_GCC_CONFIGURE_EXTRA} --disable-libsanitizer --disable-target-libsanitizer"

			# MUSL libc platforms do not support GCC mudflap (which relies on glibc features)
			BUILD_CC_GCC_CONFIGURE_EXTRA="${BUILD_CC_GCC_CONFIGURE_EXTRA} --disable-mudflap --disable-libmudflap"
			;;
	esac
fi

### Do pre-compilation steps
for prescript in scripts/pre/*; do
	if [ ! -x "${prescript}" ]; then

# HG changeset patch
# Parent ec1984833740e9cb3223001a8fa26c03b5dcc93c
Use the generic implementation of libstdc++ primitives when we're on musl, not the glibc one.

diff -r ec1984833740 libstdc++-v3/configure.host
--- a/libstdc++-v3/configure.host	Thu Jan 29 13:38:28 2015 -0500
+++ b/libstdc++-v3/configure.host	Thu Jan 29 13:41:38 2015 -0500
@@ -263,6 +263,13 @@
     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
@@ -271,6 +278,9 @@
       os_include_dir="os/gnu-linux"
     fi
     ;;
+
+    esac
+    ;;
   hpux*)
     os_include_dir="os/hpux"
     ;;
# HG changeset patch
# Parent 5bf31f896f61f266585ff2c7f6bf0a3b4b1eb05b
Adding -mmusl as a musl libc specifier, and the necessary hacks for it to know how to find musl's dynamic linker.

diff -r 5bf31f896f61 gcc/config.gcc
--- a/gcc/config.gcc	Thu Jan 29 13:41:37 2015 -0500
+++ b/gcc/config.gcc	Thu Jan 29 13:41:40 2015 -0500
@@ -550,7 +550,7 @@
 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 ${target} in
@@ -653,6 +653,9 @@
     *-*-*uclibc*)
       tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC"
       ;;
+    *-*-*musl*)
+      tm_defines="$tm_defines DEFAULT_LIBC=LIBC_MUSL"
+      ;;
     *)
       tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC"
       ;;
diff -r 5bf31f896f61 gcc/config/linux.h
--- a/gcc/config/linux.h	Thu Jan 29 13:41:37 2015 -0500
+++ b/gcc/config/linux.h	Thu Jan 29 13:41:40 2015 -0500
@@ -32,10 +32,12 @@
 #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 @@
    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 +89,21 @@
 
 #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)
 
 /* Determine whether the entire c99 runtime
    is present in the runtime library.  */
 #undef TARGET_C99_FUNCTIONS
-#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
+#define TARGET_C99_FUNCTIONS (OPTION_GLIBC || OPTION_MUSL)
 
 /* Whether we have sincos that follows the GNU extension.  */
 #undef TARGET_HAS_SINCOS
@@ -107,3 +112,74 @@
 /* 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
diff -r 5bf31f896f61 gcc/config/linux.opt
--- a/gcc/config/linux.opt	Thu Jan 29 13:41:37 2015 -0500
+++ b/gcc/config/linux.opt	Thu Jan 29 13:41:40 2015 -0500
@@ -30,3 +30,7 @@
 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 -r 5bf31f896f61 gcc/ginclude/stddef.h
--- a/gcc/ginclude/stddef.h	Thu Jan 29 13:41:37 2015 -0500
+++ b/gcc/ginclude/stddef.h	Thu Jan 29 13:41:40 2015 -0500
@@ -181,6 +181,7 @@
 #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
@@ -197,6 +198,7 @@
 #define ___int_size_t_h
 #define _GCC_SIZE_T
 #define _SIZET_
+#define __DEFINED_size_t /* musl */
 #if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \
   || defined(__FreeBSD_kernel__)
 /* __size_t is a typedef on FreeBSD 5, must not trash it. */
@@ -214,6 +216,7 @@
 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 */
# HG changeset patch
# Parent 4445b9b84fe64451e022a77b1e8ac480210a31da
A fix for libgomp to correctly request a POSIX version for time support.

diff -r 4445b9b84fe6 libgomp/config/posix/time.c
--- a/libgomp/config/posix/time.c	Thu Jan 29 13:41:40 2015 -0500
+++ b/libgomp/config/posix/time.c	Thu Jan 29 13:41:42 2015 -0500
@@ -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 -r 96e24a32862b libgcc/unwind-dw2-fde-dip.c
--- a/libgcc/unwind-dw2-fde-dip.c	Thu Jan 29 13:41:42 2015 -0500
+++ b/libgcc/unwind-dw2-fde-dip.c	Thu Jan 29 13:41:44 2015 -0500
@@ -46,33 +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)))
+#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) && defined(TARGET_DL_ITERATE_PHDR)
 # 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(__FreeBSD__) && __FreeBSD__ >= 7
-# 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__)
-# 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)
diff -r 552906ada59b gcc/configure
--- a/gcc/configure	Thu Jan 29 13:41:44 2015 -0500
+++ b/gcc/configure	Thu Jan 29 13:41:46 2015 -0500
@@ -26852,6 +26852,9 @@
 else
   gcc_cv_libc_provides_ssp=no
     case "$target" in
+       *-*-musl*)
+         # All versions of musl provide stack protector
+	 gcc_cv_libc_provides_ssp=yes;;
        *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
       # glibc 2.4 and later provides __stack_chk_fail and
       # either __stack_chk_guard, or TLS access to stack guard canary.
@@ -26885,6 +26888,7 @@
 	 # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
 	 # simply assert that glibc does provide this, which is true for all
 	 # realistically usable GNU/Hurd configurations.
+	 # All supported versions of musl provide it as well
 	 gcc_cv_libc_provides_ssp=yes;;
        *-*-darwin* | *-*-freebsd*)
 	 ac_fn_c_check_func "$LINENO" "__stack_chk_fail" "ac_cv_func___stack_chk_fail"
@@ -26967,6 +26971,9 @@
       gcc_cv_target_dl_iterate_phdr=no
     fi
     ;;
+  *-linux-musl*)
+    gcc_cv_target_dl_iterate_phdr=yes
+    ;;
 esac
 
 if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
diff -r 552906ada59b gcc/configure.ac
--- a/gcc/configure.ac	Thu Jan 29 13:41:44 2015 -0500
+++ b/gcc/configure.ac	Thu Jan 29 13:41:46 2015 -0500
@@ -4776,6 +4776,9 @@
       gcc_cv_libc_provides_ssp,
       [gcc_cv_libc_provides_ssp=no
     case "$target" in
+       *-*-musl*)
+         # All versions of musl provide stack protector
+	 gcc_cv_libc_provides_ssp=yes;;
        *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
       [# glibc 2.4 and later provides __stack_chk_fail and
       # either __stack_chk_guard, or TLS access to stack guard canary.
@@ -4809,6 +4812,7 @@
 	 # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
 	 # simply assert that glibc does provide this, which is true for all
 	 # realistically usable GNU/Hurd configurations.
+	 # All supported versions of musl provide it as well
 	 gcc_cv_libc_provides_ssp=yes;;
        *-*-darwin* | *-*-freebsd*)
 	 AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
@@ -4874,6 +4878,9 @@
       gcc_cv_target_dl_iterate_phdr=no
     fi
     ;;
+  *-linux-musl*)
+    gcc_cv_target_dl_iterate_phdr=yes
+    ;;
 esac
 GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR])
 if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
# HG changeset patch
# Parent 3428eef84c75b837b884abf7344fbd0261d5a646
Get rid of ever-broken fixincludes on musl.

diff -r 3428eef84c75 fixincludes/mkfixinc.sh
--- a/fixincludes/mkfixinc.sh	Thu Jan 29 13:41:46 2015 -0500
+++ b/fixincludes/mkfixinc.sh	Thu Jan 29 13:41:48 2015 -0500
@@ -19,7 +19,8 @@
     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}
# HG changeset patch
# Parent e2d9d64d6835b26cc5cb052112cfebce6280b00a
Support for i386-linux-musl and x86_64-linux-musl.

diff -r e2d9d64d6835 gcc/config/i386/linux.h
--- a/gcc/config/i386/linux.h	Thu Jan 29 13:41:48 2015 -0500
+++ b/gcc/config/i386/linux.h	Thu Jan 29 13:41:51 2015 -0500
@@ -21,3 +21,4 @@
 
 #define GNU_USER_LINK_EMULATION "elf_i386"
 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-i386.so.1"
diff -r e2d9d64d6835 gcc/config/i386/linux64.h
--- a/gcc/config/i386/linux64.h	Thu Jan 29 13:41:48 2015 -0500
+++ b/gcc/config/i386/linux64.h	Thu Jan 29 13:41:51 2015 -0500
@@ -30,3 +30,7 @@
 #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"
+
+#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-i386.so.1"
+#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-x86_64.so.1"
+#define MUSL_DYNAMIC_LINKERX32 "/lib/ld-musl-x32.so.1"
diff -r e2d9d64d6835 libitm/config/linux/x86/tls.h
--- a/libitm/config/linux/x86/tls.h	Thu Jan 29 13:41:48 2015 -0500
+++ b/libitm/config/linux/x86/tls.h	Thu Jan 29 13:41:51 2015 -0500
@@ -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 @@
 
 } // namespace GTM
 #endif /* >= GLIBC 2.10 */
+#endif
 
 #endif // LIBITM_X86_TLS_H
# HG changeset patch
# Parent f7c8746386c494e1c21dd4e6ae3697c371fbe661
Support for arm-linux-musl.

diff -r f7c8746386c4 gcc/config/arm/linux-eabi.h
--- a/gcc/config/arm/linux-eabi.h	Thu Jan 29 13:41:50 2015 -0500
+++ b/gcc/config/arm/linux-eabi.h	Thu Jan 29 13:41:53 2015 -0500
@@ -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
diff -r f7c8746386c4 libitm/config/arm/hwcap.cc
--- a/libitm/config/arm/hwcap.cc	Thu Jan 29 13:41:50 2015 -0500
+++ b/libitm/config/arm/hwcap.cc	Thu Jan 29 13:41:53 2015 -0500
@@ -40,7 +40,11 @@
 
 #ifdef __linux__
 #include <unistd.h>
+#ifdef __GLIBC__
 #include <sys/fcntl.h>
+#else
+#include <fcntl.h>
+#endif
 #include <elf.h>
 
 static void __attribute__((constructor))
# HG changeset patch
# Parent 2951aeba3ac9a3f39653cbd56dff41c8f1569b2f
Support for mips-linux-musl.

diff -r 2951aeba3ac9 gcc/config/mips/linux.h
--- a/gcc/config/mips/linux.h	Thu Jan 29 13:41:53 2015 -0500
+++ b/gcc/config/mips/linux.h	Thu Jan 29 13:41:55 2015 -0500
@@ -18,3 +18,10 @@
 <http://www.gnu.org/licenses/>.  */
 
 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+
+#if TARGET_ENDIAN_DEFAULT == 0 /* LE */
+#define MUSL_DYNAMIC_LINKER_E "%{EB:;:el}"
+#else
+#define MUSL_DYNAMIC_LINKER_E "%{EL:el}"
+#endif
+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips" MUSL_DYNAMIC_LINKER_E ".so.1"
# HG changeset patch
# Parent 7626e1f2b51fb2ee53358cab627ef4d3206cd75a
Support for powerpc-linux-musl.

diff -r 7626e1f2b51f gcc/config.gcc
--- a/gcc/config.gcc	Thu Jan 29 13:41:55 2015 -0500
+++ b/gcc/config.gcc	Thu Jan 29 13:41:57 2015 -0500
@@ -2138,6 +2138,10 @@
 	    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
diff -r 7626e1f2b51f gcc/config/rs6000/linux64.h
--- a/gcc/config/rs6000/linux64.h	Thu Jan 29 13:41:55 2015 -0500
+++ b/gcc/config/rs6000/linux64.h	Thu Jan 29 13:41:57 2015 -0500
@@ -374,17 +374,21 @@
 #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.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)
diff -r 7626e1f2b51f gcc/config/rs6000/secureplt.h
--- a/gcc/config/rs6000/secureplt.h	Thu Jan 29 13:41:55 2015 -0500
+++ b/gcc/config/rs6000/secureplt.h	Thu Jan 29 13:41:57 2015 -0500
@@ -18,3 +18,4 @@
 <http://www.gnu.org/licenses/>.  */
 
 #define CC1_SECURE_PLT_DEFAULT_SPEC "-msecure-plt"
+#define LINK_SECURE_PLT_DEFAULT_SPEC "--secure-plt"
diff -r 7626e1f2b51f gcc/config/rs6000/sysv4.h
--- a/gcc/config/rs6000/sysv4.h	Thu Jan 29 13:41:55 2015 -0500
+++ b/gcc/config/rs6000/sysv4.h	Thu Jan 29 13:41:57 2015 -0500
@@ -537,6 +537,9 @@
 #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.  */
 #define	CC1_SPEC "%{G*} %(cc1_cpu)" \
@@ -585,7 +588,8 @@
 
 /* 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 "\
@@ -763,15 +767,18 @@
 
 #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.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} \
@@ -894,6 +901,7 @@
   { "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 },			\
diff -r 2fdeb2c3a347 gcc/config/aarch64/aarch64-linux.h
--- a/gcc/config/aarch64/aarch64-linux.h	Thu Jan 29 13:41:57 2015 -0500
+++ b/gcc/config/aarch64/aarch64-linux.h	Thu Jan 29 13:41:59 2015 -0500
@@ -21,7 +21,11 @@
 #ifndef GCC_AARCH64_LINUX_H
 #define GCC_AARCH64_LINUX_H
 
+/* The AArch64 port currently supports two dynamic linkers:
+   - ld-linux-aarch64.so.1 - GLIBC dynamic linker
+   - ld-musl-aarch64.so.1 - musl libc dynamic linker  */
 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-aarch64.so.1"
+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-aarch64.so.1"
 
 #define CPP_SPEC "%{pthread:-D_REENTRANT}"
 
# HG changeset patch
# Parent eb020f66032d779cbaeda8acb97a73d3108189f5
Microblaze support (again).

diff -r eb020f66032d gcc/config/microblaze/linux.h
--- a/gcc/config/microblaze/linux.h	Thu Jan 29 13:41:59 2015 -0500
+++ b/gcc/config/microblaze/linux.h	Thu Jan 29 13:42:01 2015 -0500
@@ -25,7 +25,22 @@
 #undef TLS_NEEDS_GOT
 #define TLS_NEEDS_GOT 1
 
-#define DYNAMIC_LINKER "/lib/ld.so.1"
+#if TARGET_BIG_ENDIAN_DEFAULT == 0 /* LE */
+#define MUSL_DYNAMIC_LINKER_E "%{EB:;:el}"
+#else
+#define MUSL_DYNAMIC_LINKER_E "%{EL:el}"
+#endif
+
+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-microblaze" MUSL_DYNAMIC_LINKER_E ".so.1"
+#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+
+#if DEFAULT_LIBC == LIBC_MUSL
+#define DYNAMIC_LINKER MUSL_DYNAMIC_LINKER
+#else
+#define DYNAMIC_LINKER GLIBC_DYNAMIC_LINKER
+#endif
+
+
 #undef  SUBTARGET_EXTRA_SPECS
 #define SUBTARGET_EXTRA_SPECS \
   { "dynamic_linker", DYNAMIC_LINKER }
From 478ee0c03a08e2ef9371fd88d516738936943e78 Mon Sep 17 00:00:00 2001
From: David Holsgrove <david.holsgrove@xilinx.com>
Date: Fri, 28 Sep 2012 16:32:03 +1000
Subject: [PATCH 06/11] [Patch, microblaze]: Add SIZE_TYPE and PTRDIFF_TYPE to
 microblaze.h

Fixes warnings like;

warning: format '%zX' expects argument of type 'size_t',
but argument 3 has type 'unsigned int' [-Wformat]

Changelog

2013-03-18  David Holsgrove <david.holsgrove@xilinx.com>

 * gcc/config/microblaze/microblaze.h: Define SIZE_TYPE
   and PTRDIFF_TYPE.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
---
 gcc/config/microblaze/microblaze.h |    6 ++++++
 1 file changed, 6 insertions(+)

diff -r d9fb78d89e6f gcc/config/microblaze/microblaze.h
--- a/gcc/config/microblaze/microblaze.h	Thu Jan 29 13:42:01 2015 -0500
+++ b/gcc/config/microblaze/microblaze.h	Thu Jan 29 13:42:04 2015 -0500
@@ -219,6 +219,12 @@
 #undef PTRDIFF_TYPE
 #define PTRDIFF_TYPE "int"
 
+#undef SIZE_TYPE
+#define SIZE_TYPE "unsigned int"
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "int"
+
 #define CONSTANT_ALIGNMENT(EXP, ALIGN)					\
   ((TREE_CODE (EXP) == STRING_CST  || TREE_CODE (EXP) == CONSTRUCTOR)	\
    && (ALIGN) < BITS_PER_WORD						\
diff -r c7fbc78957f6 gcc/config/sh/linux.h
--- a/gcc/config/sh/linux.h	Fri Sep 28 16:32:03 2012 +1000
+++ b/gcc/config/sh/linux.h	Thu Jan 29 13:42:06 2015 -0500
@@ -43,7 +43,14 @@
 
 #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"
Fix for https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53119
wrong warning when using the universal zero initializer {0}

Backported to GCC 4.8.3

Subject: 2014-06-05  S. Gilles  <sgilles@terpmail.umd.edu>
X-Git-Url: http://repo.or.cz/w/official-gcc.git/commitdiff_plain/95cdf3fdf2d440eb7775def8e35ab970651c33d9?hp=14a3093e9943937cbc63dfbf4d51ca60f8325b29
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@211289 138bc75d-0d04-0410-961f-82ee72b054a4

diff -r be309b9bafc4 gcc/c/c-typeck.c
--- a/gcc/c/c-typeck.c	Thu Jan 29 13:42:06 2015 -0500
+++ b/gcc/c/c-typeck.c	Thu Jan 29 13:42:08 2015 -0500
@@ -62,9 +62,9 @@
    if expr.original_code == SIZEOF_EXPR.  */
 tree c_last_sizeof_arg;
 
-/* Nonzero if we've already printed a "missing braces around initializer"
-   message within this initializer.  */
-static int missing_braces_mentioned;
+/* Nonzero if we might need to print a "missing braces around
+   initializer" message within this initializer.  */
+static int found_missing_braces;
 
 static int require_constant_value;
 static int require_constant_elements;
@@ -6379,6 +6379,9 @@
 /* 1 if this constructor is erroneous so far.  */
 static int constructor_erroneous;
 
+/* 1 if this constructor is the universal zero initializer { 0 }.  */
+static int constructor_zeroinit;
+
 /* Structure for managing pending initializer elements, organized as an
    AVL tree.  */
 
@@ -6540,7 +6543,7 @@
   constructor_stack = 0;
   constructor_range_stack = 0;
 
-  missing_braces_mentioned = 0;
+  found_missing_braces = 0;
 
   spelling_base = 0;
   spelling_size = 0;
@@ -6635,6 +6638,7 @@
   constructor_type = type;
   constructor_incremental = 1;
   constructor_designated = 0;
+  constructor_zeroinit = 1;
   designator_depth = 0;
   designator_erroneous = 0;
 
@@ -6832,11 +6836,8 @@
 	set_nonincremental_init (braced_init_obstack);
     }
 
-  if (implicit == 1 && warn_missing_braces && !missing_braces_mentioned)
-    {
-      missing_braces_mentioned = 1;
-      warning_init (OPT_Wmissing_braces, "missing braces around initializer");
-    }
+  if (implicit == 1)
+    found_missing_braces = 1;
 
   if (TREE_CODE (constructor_type) == RECORD_TYPE
 	   || TREE_CODE (constructor_type) == UNION_TYPE)
@@ -6969,16 +6970,23 @@
 	}
     }
 
+  if (vec_safe_length (constructor_elements) != 1)
+    constructor_zeroinit = 0;
+
+  /* Warn when some structs are initialized with direct aggregation.  */
+  if (!implicit && found_missing_braces && warn_missing_braces
+      && !constructor_zeroinit)
+    {
+      warning_init (OPT_Wmissing_braces,
+		    "missing braces around initializer");
+    }
+
   /* Warn when some struct elements are implicitly initialized to zero.  */
   if (warn_missing_field_initializers
       && constructor_type
       && TREE_CODE (constructor_type) == RECORD_TYPE
       && constructor_unfilled_fields)
     {
-	bool constructor_zeroinit =
-	 (vec_safe_length (constructor_elements) == 1
-	  && integer_zerop ((*constructor_elements)[0].value));
-
 	/* Do not warn for flexible array members or zero-length arrays.  */
 	while (constructor_unfilled_fields
 	       && (!DECL_SIZE (constructor_unfilled_fields)
@@ -8093,6 +8101,9 @@
   designator_depth = 0;
   designator_erroneous = 0;
 
+  if (!implicit && value.value && !integer_zerop (value.value))
+    constructor_zeroinit = 0;
+
   /* Handle superfluous braces around string cst as in
      char x[] = {"foo"}; */
   if (string_flag
Do not use weak references on any targets for gthread. Necessary on musl, safe elsewhere.

diff -r d6371c4d8f65 libgcc/gthr.h
--- a/libgcc/gthr.h	Thu Jan 29 19:10:06 2015 -0500
+++ b/libgcc/gthr.h	Thu Jan 29 19:10:12 2015 -0500
@@ -136,10 +136,8 @@
 /* The pe-coff weak support isn't fully compatible to ELF's weak.
    For static libraries it might would work, but as we need to deal
    with shared versions too, we disable it for mingw-targets.  */
-#ifdef __MINGW32__
 #undef GTHREAD_USE_WEAK
 #define GTHREAD_USE_WEAK 0
-#endif
 
 #ifndef GTHREAD_USE_WEAK
 #define GTHREAD_USE_WEAK 1

#! /usr/bin/env sh

case "$1" in
	4.8.[456789])
		exit 0
		;;
esac

exit 1