[OpenWrt-Devel] [PATCH 3/4] [toolchain] gcc: update musl patch
dirkneukirchen at web.de
dirkneukirchen at web.de
Wed Jun 25 05:31:13 EDT 2014
From: Dirk Neukirchen <dirkneukirchen at web.de>
taken from musl-cross
https://github.com/GregorR/musl-cross/blob/master/patches/gcc-4.9.0-musl.diff
Signed-off-by: Dirk Neukirchen <dirkneukirchen at web.de>
---
toolchain/gcc/patches/4.9.0/200-musl.patch | 730 ++++++++++++++++++++++-------
1 file changed, 556 insertions(+), 174 deletions(-)
diff --git a/toolchain/gcc/patches/4.9.0/200-musl.patch b/toolchain/gcc/patches/4.9.0/200-musl.patch
index 2e6df47..06381ce 100644
--- a/toolchain/gcc/patches/4.9.0/200-musl.patch
+++ b/toolchain/gcc/patches/4.9.0/200-musl.patch
@@ -1,15 +1,51 @@
---- a/gcc/config.gcc
-+++ b/gcc/config.gcc
-@@ -549,7 +549,7 @@ case ${target} in
+# HG changeset patch
+# Parent 2f9df662aaaba956600bbdb123b6a227c8e64c59
+Use the generic implementation of libstdc++ primitives when we're on musl, not the glibc one.
+
+diff -r 2f9df662aaab libstdc++-v3/configure.host
+--- a/libstdc++-v3/configure.host Tue May 20 11:00:21 2014 -0400
++++ b/libstdc++-v3/configure.host Tue May 20 11:05:42 2014 -0400
+@@ -264,6 +264,13 @@
+ os_include_dir="os/bsd/freebsd"
+ ;;
+ gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
++ # check for musl by target
++ case "${host_os}" in
++ *-musl*)
++ os_include_dir="os/generic"
++ ;;
++ *)
++
+ if [ "$uclibc" = "yes" ]; then
+ os_include_dir="os/uclibc"
+ elif [ "$bionic" = "yes" ]; then
+@@ -272,6 +279,9 @@
+ os_include_dir="os/gnu-linux"
+ fi
+ ;;
++
++ esac
++ ;;
+ hpux*)
+ os_include_dir="os/hpux"
+ ;;
+# HG changeset patch
+# Parent b6f4ce05a3155dbcbc06d72aebdb67e2f8abc094
+Adding -mmusl as a musl libc specifier, and the necessary hacks for it to know how to find musl's dynamic linker.
+
+diff -r b6f4ce05a315 gcc/config.gcc
+--- a/gcc/config.gcc Tue May 20 11:05:42 2014 -0400
++++ b/gcc/config.gcc Tue May 20 11:05:45 2014 -0400
+@@ -594,7 +594,7 @@
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
-@@ -652,6 +652,9 @@ case ${target} in
+ # 32-bit x86 processors supported by --with-arch=. Each processor
+ # MUST be separated by exactly one space.
+@@ -719,6 +719,9 @@
*-*-*uclibc*)
tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC"
;;
@@ -19,39 +55,10 @@
*)
tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC"
;;
---- a/gcc/config/arm/linux-eabi.h
-+++ b/gcc/config/arm/linux-eabi.h
-@@ -77,6 +77,10 @@
- %{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \
- %{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}"
-
-+/* 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
---- a/gcc/config/i386/linux.h
-+++ b/gcc/config/i386/linux.h
-@@ -21,3 +21,4 @@ along with GCC; see the file COPYING3.
-
- #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"
---- a/gcc/config/i386/linux64.h
-+++ b/gcc/config/i386/linux64.h
-@@ -30,3 +30,7 @@ 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"
-+
-+#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"
---- a/gcc/config/linux.h
-+++ b/gcc/config/linux.h
-@@ -32,10 +32,12 @@ see the files COPYING3 and COPYING.RUNTI
+diff -r b6f4ce05a315 gcc/config/linux.h
+--- a/gcc/config/linux.h Tue May 20 11:05:42 2014 -0400
++++ b/gcc/config/linux.h Tue May 20 11:05:45 2014 -0400
+@@ -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)
@@ -64,7 +71,7 @@
#endif
#define GNU_USER_TARGET_OS_CPP_BUILTINS() \
-@@ -53,18 +55,21 @@ see the files COPYING3 and COPYING.RUNTI
+@@ -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. */
@@ -94,7 +101,7 @@
#else
#error "Unsupported DEFAULT_LIBC"
#endif /* DEFAULT_LIBC */
-@@ -84,16 +89,16 @@ see the files COPYING3 and COPYING.RUNTI
+@@ -84,21 +89,92 @@
#define GNU_USER_DYNAMIC_LINKER \
CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, \
@@ -113,11 +120,88 @@
- BIONIC_DYNAMIC_LINKERX32)
+ BIONIC_DYNAMIC_LINKERX32, MUSL_DYNAMIC_LINKERX32)
- /* Determine whether the entire c99 runtime
- is present in the runtime library. */
---- a/gcc/config/linux.opt
-+++ b/gcc/config/linux.opt
-@@ -30,3 +30,7 @@ Use GNU C library
+ /* 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
+diff -r b6f4ce05a315 gcc/config/linux.opt
+--- a/gcc/config/linux.opt Tue May 20 11:05:42 2014 -0400
++++ b/gcc/config/linux.opt Tue May 20 11:05:45 2014 -0400
+@@ -30,3 +30,7 @@
muclibc
Target Report RejectNegative Var(linux_libc,LIBC_UCLIBC) Negative(mbionic)
Use uClibc C library
@@ -125,69 +209,10 @@
+mmusl
+Target Report RejectNegative Var(linux_libc,LIBC_MUSL) Negative(mglibc)
+Use musl C library
---- a/gcc/config/mips/linux.h
-+++ b/gcc/config/mips/linux.h
-@@ -18,3 +18,5 @@ along with GCC; see the file COPYING3.
- <http://www.gnu.org/licenses/>. */
-
- #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
-+
-+#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips.so.1"
---- a/gcc/config/rs6000/linux64.h
-+++ b/gcc/config/rs6000/linux64.h
-@@ -364,17 +364,21 @@ extern int dot_symbols;
- #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld64.so.1"
- #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)
-
-
- #define LINK_OS_LINUX_SPEC32 "-m elf32ppclinux %{!shared: %{!static: \
---- a/gcc/config/rs6000/sysv4.h
-+++ b/gcc/config/rs6000/sysv4.h
-@@ -789,15 +789,18 @@ extern int fixuplabelno;
-
- #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} \
---- a/gcc/ginclude/stddef.h
-+++ b/gcc/ginclude/stddef.h
-@@ -181,6 +181,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t;
+diff -r b6f4ce05a315 gcc/ginclude/stddef.h
+--- a/gcc/ginclude/stddef.h Tue May 20 11:05:42 2014 -0400
++++ b/gcc/ginclude/stddef.h Tue May 20 11:05:45 2014 -0400
+@@ -181,6 +181,7 @@
#ifndef _GCC_SIZE_T
#ifndef _SIZET_
#ifndef __size_t
@@ -195,7 +220,7 @@
#define __size_t__ /* BeOS */
#define __SIZE_T__ /* Cray Unicos/Mk */
#define _SIZE_T
-@@ -197,6 +198,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t;
+@@ -197,6 +198,7 @@
#define ___int_size_t_h
#define _GCC_SIZE_T
#define _SIZET_
@@ -203,7 +228,7 @@
#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 __SIZE_TYPE__ size_t;
+@@ -214,6 +216,7 @@
typedef long ssize_t;
#endif /* __BEOS__ */
#endif /* !(defined (__GNUG__) && defined (size_t)) */
@@ -211,8 +236,13 @@
#endif /* __size_t */
#endif /* _SIZET_ */
#endif /* _GCC_SIZE_T */
---- a/libgomp/config/posix/time.c
-+++ b/libgomp/config/posix/time.c
+# HG changeset patch
+# Parent 65d595ef9fc3cdbbde4894d927593f1b0f5bbcb7
+A fix for libgomp to correctly request a POSIX version for time support.
+
+diff -r 65d595ef9fc3 libgomp/config/posix/time.c
+--- a/libgomp/config/posix/time.c Tue May 20 11:05:45 2014 -0400
++++ b/libgomp/config/posix/time.c Tue May 20 11:05:48 2014 -0400
@@ -28,6 +28,8 @@
The following implementation uses the most simple POSIX routines.
If present, POSIX 4 clocks should be used instead. */
@@ -222,22 +252,154 @@
#include "libgomp.h"
#include <unistd.h>
#if TIME_WITH_SYS_TIME
---- a/libitm/config/arm/hwcap.cc
-+++ b/libitm/config/arm/hwcap.cc
-@@ -40,7 +40,11 @@ int GTM_hwcap HIDDEN = 0
+diff -r 95f4f1d7668b libgcc/unwind-dw2-fde-dip.c
+--- a/libgcc/unwind-dw2-fde-dip.c Tue May 20 11:05:48 2014 -0400
++++ b/libgcc/unwind-dw2-fde-dip.c Tue May 20 11:05:52 2014 -0400
+@@ -46,33 +46,13 @@
+ #include "unwind-compat.h"
+ #include "gthr.h"
- #ifdef __linux__
- #include <unistd.h>
-+#ifdef __GLIBC__
- #include <sys/fcntl.h>
-+#else
-+#include <fcntl.h>
-+#endif
- #include <elf.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
- static void __attribute__((constructor))
---- a/libitm/config/linux/x86/tls.h
-+++ b/libitm/config/linux/x86/tls.h
+ #if defined(USE_PT_GNU_EH_FRAME)
+diff -r ff03fa61c6b3 gcc/configure
+--- a/gcc/configure Tue May 20 11:05:51 2014 -0400
++++ b/gcc/configure Tue May 20 11:05:55 2014 -0400
+@@ -27300,6 +27300,9 @@
+ 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.
+@@ -27332,6 +27335,7 @@
+ # <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 "$LINENO" "__stack_chk_fail" "ac_cv_func___stack_chk_fail"
+@@ -27421,6 +27425,9 @@
+ gcc_cv_target_dl_iterate_phdr=no
+ fi
+ ;;
++ *-linux-musl*)
++ gcc_cv_target_dl_iterate_phdr=yes
++ ;;
+ esac
+
+ if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+diff -r ff03fa61c6b3 gcc/configure.ac
+--- a/gcc/configure.ac Tue May 20 11:05:51 2014 -0400
++++ b/gcc/configure.ac Tue May 20 11:05:55 2014 -0400
+@@ -5001,6 +5001,9 @@
+ gcc_cv_libc_provides_ssp,
+ [gcc_cv_libc_provides_ssp=no
+ case "$target" in
++ *-*-musl*)
++ # All versions of musl provide stack protector
++ gcc_cv_libc_provides_ssp=yes;;
+ *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
+ # glibc 2.4 and later provides __stack_chk_fail and
+ # either __stack_chk_guard, or TLS access to stack guard canary.
+@@ -5027,6 +5030,7 @@
+ # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
+ # simply assert that glibc does provide this, which is true for all
+ # realistically usable GNU/Hurd configurations.
++ # All supported versions of musl provide it as well
+ gcc_cv_libc_provides_ssp=yes;;
+ *-*-darwin* | *-*-freebsd*)
+ AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
+@@ -5093,6 +5097,9 @@
+ gcc_cv_target_dl_iterate_phdr=no
+ fi
+ ;;
++ *-linux-musl*)
++ gcc_cv_target_dl_iterate_phdr=yes
++ ;;
+ esac
+ GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR])
+ if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+# HG changeset patch
+# Parent 26f591b9e77e3df3d0f772b840bd9c13ec24bd4c
+Get rid of ever-broken fixincludes on musl.
+
+diff -r 26f591b9e77e fixincludes/mkfixinc.sh
+--- a/fixincludes/mkfixinc.sh Tue May 20 11:05:55 2014 -0400
++++ b/fixincludes/mkfixinc.sh Tue May 20 11:05:58 2014 -0400
+@@ -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" ) > ${target}
+# HG changeset patch
+# Parent bc117c35705fcc39396c19af046101411f251161
+Support for i386-linux-musl and x86_64-linux-musl.
+
+diff -r bc117c35705f gcc/config/i386/linux.h
+--- a/gcc/config/i386/linux.h Tue May 20 11:05:58 2014 -0400
++++ b/gcc/config/i386/linux.h Tue May 20 11:06:01 2014 -0400
+@@ -21,3 +21,4 @@
+
+ #define GNU_USER_LINK_EMULATION "elf_i386"
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-i386.so.1"
+diff -r bc117c35705f gcc/config/i386/linux64.h
+--- a/gcc/config/i386/linux64.h Tue May 20 11:05:58 2014 -0400
++++ b/gcc/config/i386/linux64.h Tue May 20 11:06:01 2014 -0400
+@@ -30,3 +30,7 @@
+ #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+ #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
+ #define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"
++
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-i386.so.1"
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-x86_64.so.1"
++#define MUSL_DYNAMIC_LINKERX32 "/lib/ld-musl-x32.so.1"
+diff -r bc117c35705f libitm/config/linux/x86/tls.h
+--- a/libitm/config/linux/x86/tls.h Tue May 20 11:05:58 2014 -0400
++++ b/libitm/config/linux/x86/tls.h Tue May 20 11:06:01 2014 -0400
@@ -25,16 +25,19 @@
#ifndef LIBITM_X86_TLS_H
#define LIBITM_X86_TLS_H 1
@@ -260,62 +422,282 @@
namespace GTM HIDDEN {
#ifdef __x86_64__
-@@ -101,5 +104,6 @@ static inline void set_abi_disp(struct a
+@@ -101,5 +104,6 @@
} // namespace GTM
#endif /* >= GLIBC 2.10 */
+#endif
#endif // LIBITM_X86_TLS_H
---- a/libstdc++-v3/configure.host
-+++ b/libstdc++-v3/configure.host
-@@ -264,6 +264,13 @@ case "${host_os}" in
- os_include_dir="os/bsd/freebsd"
- ;;
- gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
-+ # check for musl by target
-+ case "${host_os}" in
-+ *-musl*)
-+ os_include_dir="os/generic"
-+ ;;
-+ *)
+# HG changeset patch
+# Parent 933c4f064622eb96a0b2ab213abd0cddbd977d1a
+Support for arm-linux-musl.
+
+diff -r 933c4f064622 gcc/config/arm/linux-eabi.h
+--- a/gcc/config/arm/linux-eabi.h Tue May 20 11:06:01 2014 -0400
++++ b/gcc/config/arm/linux-eabi.h Tue May 20 11:06:04 2014 -0400
+@@ -77,6 +77,23 @@
+ %{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \
+ %{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}"
+
++/* For ARM musl currently supports four dynamic linkers:
++ - ld-musl-arm.so.1 - for the EABI-derived soft-float ABI
++ - ld-musl-armhf.so.1 - for the EABI-derived hard-float ABI
++ - ld-musl-armeb.so.1 - for the EABI-derived soft-float ABI, EB
++ - ld-musl-armebhf.so.1 - for the EABI-derived hard-float ABI, EB
++ musl does not support the legacy OABI mode.
++ All the dynamic linkers live in /lib.
++ We default to soft-float, EL. */
++#undef MUSL_DYNAMIC_LINKER
++#if TARGET_BIG_ENDIAN_DEFAULT
++#define MUSL_DYNAMIC_LINKER_E "%{mlittle-endian:;:eb}"
++#else
++#define MUSL_DYNAMIC_LINKER_E "%{mbig-endian:eb}"
++#endif
++#define MUSL_DYNAMIC_LINKER \
++ "/lib/ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
+
- if [ "$uclibc" = "yes" ]; then
- os_include_dir="os/uclibc"
- elif [ "$bionic" = "yes" ]; then
-@@ -272,6 +279,9 @@ case "${host_os}" in
- os_include_dir="os/gnu-linux"
- fi
- ;;
+ /* 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 933c4f064622 libitm/config/arm/hwcap.cc
+--- a/libitm/config/arm/hwcap.cc Tue May 20 11:06:01 2014 -0400
++++ b/libitm/config/arm/hwcap.cc Tue May 20 11:06:04 2014 -0400
+@@ -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 03fe896f3acaa911e935a8e999d15c7542ee73d1
+Support for mips-linux-musl.
+
+diff -r 03fe896f3aca gcc/config/mips/linux.h
+--- a/gcc/config/mips/linux.h Tue May 20 11:06:04 2014 -0400
++++ b/gcc/config/mips/linux.h Tue May 20 11:06:08 2014 -0400
+@@ -23,3 +23,10 @@
+ #undef UCLIBC_DYNAMIC_LINKER
+ #define UCLIBC_DYNAMIC_LINKER \
+ "%{mnan=2008:/lib/ld-uClibc-mipsn8.so.0;:/lib/ld-uClibc.so.0}"
+
-+ esac
-+ ;;
- hpux*)
- os_include_dir="os/hpux"
- ;;
---- a/gcc/config/mips/linux64.h
-+++ b/gcc/config/mips/linux64.h
-@@ -27,6 +27,9 @@ along with GCC; see the file COPYING3.
- #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 GNU_USER_DYNAMIC_LINKERN32 \
- CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERN32, UCLIBC_DYNAMIC_LINKERN32, \
-- BIONIC_DYNAMIC_LINKERN32)
-+ BIONIC_DYNAMIC_LINKERN32, MUSL_DYNAMIC_LINKERN32)
---- a/gcc/config/sparc/linux64.h 2013-09-10 10:02:45.663973856 +0100
-+++ b/gcc/config/sparc/linux64.h 2013-09-10 10:03:17.871972435 +0100
-@@ -104,6 +104,9 @@
- #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
- #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"
++#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 6097333f2ab47a4ce37ccfb18b0f07a0cdcfec49
+Support for powerpc-linux-musl.
+
+diff -r 6097333f2ab4 gcc/config.gcc
+--- a/gcc/config.gcc Tue May 20 11:06:08 2014 -0400
++++ b/gcc/config.gcc Tue May 20 11:06:11 2014 -0400
+@@ -2326,6 +2326,10 @@
+ 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 6097333f2ab4 gcc/config/rs6000/linux64.h
+--- a/gcc/config/rs6000/linux64.h Tue May 20 11:06:08 2014 -0400
++++ b/gcc/config/rs6000/linux64.h Tue May 20 11:06:11 2014 -0400
+@@ -375,17 +375,21 @@
+ #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 6097333f2ab4 gcc/config/rs6000/secureplt.h
+--- a/gcc/config/rs6000/secureplt.h Tue May 20 11:06:08 2014 -0400
++++ b/gcc/config/rs6000/secureplt.h Tue May 20 11:06:11 2014 -0400
+@@ -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 6097333f2ab4 gcc/config/rs6000/sysv4.h
+--- a/gcc/config/rs6000/sysv4.h Tue May 20 11:06:08 2014 -0400
++++ b/gcc/config/rs6000/sysv4.h Tue May 20 11:06:11 2014 -0400
+@@ -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 @@
-+#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-sparc.so.1"
-+#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-sparc.so.1"
+ /* 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 813971b9f083 gcc/config/aarch64/aarch64-linux.h
+--- a/gcc/config/aarch64/aarch64-linux.h Tue May 20 11:06:11 2014 -0400
++++ b/gcc/config/aarch64/aarch64-linux.h Tue May 20 11:06:14 2014 -0400
+@@ -23,6 +23,8 @@
+
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-aarch64%{mbig-endian:_be}.so.1"
+
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-aarch64.so.1"
+
- #ifdef SPARC_BI_ARCH
+ #define CPP_SPEC "%{pthread:-D_REENTRANT}"
+
+ #define LINUX_TARGET_LINK_SPEC "%{h*} \
+# HG changeset patch
+# Parent 4a62a6813db995fe195d47ff73234d455975ac30
+Microblaze support (again).
+
+diff -r 4a62a6813db9 gcc/config/microblaze/linux.h
+--- a/gcc/config/microblaze/linux.h Tue May 20 11:06:14 2014 -0400
++++ b/gcc/config/microblaze/linux.h Tue May 20 11:06:17 2014 -0400
+@@ -25,7 +25,22 @@
+ #undef TLS_NEEDS_GOT
+ #define TLS_NEEDS_GOT 1
- #undef SUBTARGET_EXTRA_SPECS
+-#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 at 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 at xilinx.com>
+
+ * gcc/config/microblaze/microblaze.h: Define SIZE_TYPE
+ and PTRDIFF_TYPE.
+
+Signed-off-by: David Holsgrove <david.holsgrove at xilinx.com>
+---
+ gcc/config/microblaze/microblaze.h | 6 ++++++
+ 1 file changed, 6 insertions(+)
+
+diff -r 20d1c995f5de gcc/config/microblaze/microblaze.h
+--- a/gcc/config/microblaze/microblaze.h Tue May 20 11:06:17 2014 -0400
++++ b/gcc/config/microblaze/microblaze.h Tue May 20 11:06:20 2014 -0400
+@@ -218,6 +218,12 @@
+ #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 2f999fc929da 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 Tue May 20 11:06:23 2014 -0400
+@@ -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"
--
2.0.0
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