add musl patch from musl-gcc project

2 files changed, 35844 insertions, 360 deletions

diff --git a/toolchain/gcc/patches/4.7.3/musl-cross.patch b/toolchain/gcc/patches/4.7.3/musl-cross.patch
new file mode 100644
index 000000000..4a4d2673b
--- /dev/null
+++ b/toolchain/gcc/patches/4.7.3/musl-cross.patch
@@ -0,0 +1,35844 @@
+diff -Nur gcc-4.7.3.orig/config.sub gcc-4.7.3/config.sub
+--- gcc-4.7.3.orig/config.sub	2012-08-06 16:34:27.000000000 +0200
++++ gcc-4.7.3/config.sub	2013-09-14 13:08:52.000000000 +0200
+@@ -4,7 +4,7 @@
+ #   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
+ #   2011 Free Software Foundation, Inc.
+ 
+-timestamp='2011-10-29'
++timestamp='2011-03-23'
+ 
+ # This file is (in principle) common to ALL GNU software.
+ # The presence of a machine in this file suggests that SOME GNU software
+@@ -125,6 +125,7 @@
+ maybe_os=`echo $1 | sed 's/^\(.*\)-\([^-]*-[^-]*\)$/\2/'`
+ case $maybe_os in
+   nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc | linux-newlib* | \
++  linux-musl* | \
+   linux-uclibc* | uclinux-uclibc* | uclinux-gnu* | kfreebsd*-gnu* | \
+   knetbsd*-gnu* | netbsd*-gnu* | \
+   kopensolaris*-gnu* | \
+@@ -251,17 +252,13 @@
+ 	| alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+ 	| am33_2.0 \
+ 	| arc | arm | arm[bl]e | arme[lb] | armv[2345] | armv[345][lb] | avr | avr32 \
+-        | be32 | be64 \
+ 	| bfin \
+ 	| c4x | clipper \
+ 	| d10v | d30v | dlx | dsp16xx \
+-	| epiphany \
+ 	| fido | fr30 | frv \
+ 	| h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+-	| hexagon \
+ 	| i370 | i860 | i960 | ia64 \
+ 	| ip2k | iq2000 \
+-	| le32 | le64 \
+ 	| lm32 \
+ 	| m32c | m32r | m32rle | m68000 | m68k | m88k \
+ 	| maxq | mb | microblaze | mcore | mep | metag \
+@@ -295,7 +292,7 @@
+ 	| pdp10 | pdp11 | pj | pjl \
+ 	| powerpc | powerpc64 | powerpc64le | powerpcle \
+ 	| pyramid \
+-	| rl78 | rx \
++	| rx \
+ 	| score \
+ 	| sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[34]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+ 	| sh64 | sh64le \
+@@ -304,7 +301,7 @@
+ 	| spu \
+ 	| tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
+ 	| ubicom32 \
+-	| v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
++	| v850 | v850e \
+ 	| we32k \
+ 	| x86 | xc16x | xstormy16 | xtensa \
+ 	| z8k | z80)
+@@ -361,7 +358,6 @@
+ 	| alphapca5[67]-* | alpha64pca5[67]-* | arc-* \
+ 	| arm-*  | armbe-* | armle-* | armeb-* | armv*-* \
+ 	| avr-* | avr32-* \
+-	| be32-* | be64-* \
+ 	| bfin-* | bs2000-* \
+ 	| c[123]* | c30-* | [cjt]90-* | c4x-* \
+ 	| clipper-* | craynv-* | cydra-* \
+@@ -370,10 +366,8 @@
+ 	| f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
+ 	| h8300-* | h8500-* \
+ 	| hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+-	| hexagon-* \
+ 	| i*86-* | i860-* | i960-* | ia64-* \
+ 	| ip2k-* | iq2000-* \
+-	| le32-* | le64-* \
+ 	| lm32-* \
+ 	| m32c-* | m32r-* | m32rle-* \
+ 	| m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+@@ -407,7 +401,7 @@
+ 	| pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+ 	| powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+ 	| pyramid-* \
+-	| rl78-* | romp-* | rs6000-* | rx-* \
++	| romp-* | rs6000-* | rx-* \
+ 	| sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+ 	| shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+ 	| sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
+@@ -415,11 +409,10 @@
+ 	| sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx?-* \
+ 	| tahoe-* \
+ 	| tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+-	| tile*-* \
++	| tile-* | tilegx-* \
+ 	| tron-* \
+ 	| ubicom32-* \
+-	| v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+-	| vax-* \
++	| v850-* | v850e-* | vax-* \
+ 	| we32k-* \
+ 	| x86-* | x86_64-* | xc16x-* | xps100-* \
+ 	| xstormy16-* | xtensa*-* \
+@@ -820,10 +813,6 @@
+ 		basic_machine=i370-ibm
+ 		os=-mvs
+ 		;;
+-	nacl)
+-		basic_machine=le32-unknown
+-		os=-nacl
+-		;;
+ 	ncr3000)
+ 		basic_machine=i486-ncr
+ 		os=-sysv4
+@@ -1132,8 +1121,13 @@
+ 		basic_machine=t90-cray
+ 		os=-unicos
+ 		;;
++	# This must be matched before tile*.
++	tilegx*)
++		basic_machine=tilegx-unknown
++		os=-linux-gnu
++		;;
+ 	tile*)
+-		basic_machine=$basic_machine-unknown
++		basic_machine=tile-unknown
+ 		os=-linux-gnu
+ 		;;
+ 	tx39)
+@@ -1346,6 +1340,7 @@
+ 	      | -cygwin* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+ 	      | -mingw32* | -linux-gnu* | -linux-android* \
+ 	      | -linux-newlib* | -linux-uclibc* \
++	      | -linux-musl* \
+ 	      | -uxpv* | -beos* | -mpeix* | -udk* \
+ 	      | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* | -opened* \
+ 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+diff -Nur gcc-4.7.3.orig/fixincludes/mkfixinc.sh gcc-4.7.3/fixincludes/mkfixinc.sh
+--- gcc-4.7.3.orig/fixincludes/mkfixinc.sh	2011-09-22 16:00:17.000000000 +0200
++++ gcc-4.7.3/fixincludes/mkfixinc.sh	2013-09-14 13:08:52.000000000 +0200
+@@ -20,7 +20,8 @@
+     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}
+diff -Nur gcc-4.7.3.orig/fixincludes/mkfixinc.sh.orig gcc-4.7.3/fixincludes/mkfixinc.sh.orig
+--- gcc-4.7.3.orig/fixincludes/mkfixinc.sh.orig	1970-01-01 01:00:00.000000000 +0100
++++ gcc-4.7.3/fixincludes/mkfixinc.sh.orig	2011-09-22 16:00:17.000000000 +0200
+@@ -0,0 +1,33 @@
++#! /bin/sh
++
++if [ $# -ne 1 ]
++then
++  echo "Usage: $0 <target-mach-triplet>"
++  exit 1
++fi
++
++machine=$1
++target=fixinc.sh
++
++# Check for special fix rules for particular targets
++case $machine in
++    i?86-*-cygwin* | \
++    i?86-*-mingw32* | \
++    x86_64-*-mingw32* | \
++    i?86-*-interix* | \
++    *-*-vxworks* | \
++    powerpc-*-eabisim* | \
++    powerpc-*-eabi*    | \
++    powerpc-*-rtems*   | \
++    powerpcle-*-eabisim* | \
++    powerpcle-*-eabi* )
++	#  IF there is no include fixing,
++	#  THEN create a no-op fixer and exit
++	(echo "#! /bin/sh" ; echo "exit 0" ) > ${target}
++        ;;
++
++    *)
++	cat < ${srcdir}/fixinc.in > ${target} || exit 1
++	;;
++esac
++chmod 755 ${target}
+diff -Nur gcc-4.7.3.orig/gcc/config/arm/linux-eabi.h gcc-4.7.3/gcc/config/arm/linux-eabi.h
+--- gcc-4.7.3.orig/gcc/config/arm/linux-eabi.h	2011-11-02 16:03:19.000000000 +0100
++++ gcc-4.7.3/gcc/config/arm/linux-eabi.h	2013-09-14 13:08:52.000000000 +0200
+@@ -64,6 +64,23 @@
+ #undef  GLIBC_DYNAMIC_LINKER
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3"
+ 
++/* For ARM musl currently supports two 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.
++   musl does not support the legacy OABI (i.e. broken) mode.
++   All the dynamic linkers live in /lib.
++   We default to soft-float, but this can be overridden by changing both
++   MUSL_DYNAMIC_LINKER_DEFAULT and TARGET_DEFAULT_FLOAT_ABI.  */
++#undef  MUSL_DYNAMIC_LINKER
++#define MUSL_DYNAMIC_LINKER_SOFT_FLOAT "/lib/ld-musl-arm.so.1"
++#define MUSL_DYNAMIC_LINKER_HARD_FLOAT "/lib/ld-musl-armhf.so.1"
++#define MUSL_DYNAMIC_LINKER_DEFAULT MUSL_DYNAMIC_LINKER_SOFT_FLOAT
++
++#define MUSL_DYNAMIC_LINKER \
++  "%{mfloat-abi=hard:" MUSL_DYNAMIC_LINKER_HARD_FLOAT "} \
++   %{mfloat-abi=soft*:" MUSL_DYNAMIC_LINKER_SOFT_FLOAT "} \
++   %{!mfloat-abi=*:" MUSL_DYNAMIC_LINKER_DEFAULT "}"
++
+ /* 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 -Nur gcc-4.7.3.orig/gcc/config/i386/linux.h gcc-4.7.3/gcc/config/i386/linux.h
+--- gcc-4.7.3.orig/gcc/config/i386/linux.h	2011-06-03 20:30:39.000000000 +0200
++++ gcc-4.7.3/gcc/config/i386/linux.h	2013-09-14 13:08:52.000000000 +0200
+@@ -22,3 +22,4 @@
+ 
+ #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 -Nur gcc-4.7.3.orig/gcc/config/i386/linux.h.orig gcc-4.7.3/gcc/config/i386/linux.h.orig
+--- gcc-4.7.3.orig/gcc/config/i386/linux.h.orig	1970-01-01 01:00:00.000000000 +0100
++++ gcc-4.7.3/gcc/config/i386/linux.h.orig	2011-06-03 20:30:39.000000000 +0200
+@@ -0,0 +1,24 @@
++/* Definitions for Intel 386 running Linux-based GNU systems with ELF format.
++   Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2001, 2002, 2004, 2005,
++   2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
++   Contributed by Eric Youngdale.
++   Modified for stabs-in-ELF by H.J. Lu.
++
++This file is part of GCC.
++
++GCC is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 3, or (at your option)
++any later version.
++
++GCC is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with GCC; see the file COPYING3.  If not see
++<http://www.gnu.org/licenses/>.  */
++
++#define GNU_USER_LINK_EMULATION "elf_i386"
++#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+diff -Nur gcc-4.7.3.orig/gcc/config/i386/linux64.h gcc-4.7.3/gcc/config/i386/linux64.h
+--- gcc-4.7.3.orig/gcc/config/i386/linux64.h	2011-07-07 17:38:34.000000000 +0200
++++ gcc-4.7.3/gcc/config/i386/linux64.h	2013-09-14 13:08:52.000000000 +0200
+@@ -31,3 +31,7 @@
+ #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 -Nur gcc-4.7.3.orig/gcc/config/i386/linux64.h.orig gcc-4.7.3/gcc/config/i386/linux64.h.orig
+--- gcc-4.7.3.orig/gcc/config/i386/linux64.h.orig	1970-01-01 01:00:00.000000000 +0100
++++ gcc-4.7.3/gcc/config/i386/linux64.h.orig	2011-07-07 17:38:34.000000000 +0200
+@@ -0,0 +1,33 @@
++/* Definitions for AMD x86-64 running Linux-based GNU systems with ELF format.
++   Copyright (C) 2001, 2002, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
++   Free Software Foundation, Inc.
++   Contributed by Jan Hubicka <jh@suse.cz>, based on linux.h.
++
++This file is part of GCC.
++
++GCC is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 3, or (at your option)
++any later version.
++
++GCC is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++GNU General Public License for more details.
++
++Under Section 7 of GPL version 3, you are granted additional
++permissions described in the GCC Runtime Library Exception, version
++3.1, as published by the Free Software Foundation.
++
++You should have received a copy of the GNU General Public License and
++a copy of the GCC Runtime Library Exception along with this program;
++see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
++<http://www.gnu.org/licenses/>.  */
++
++#define GNU_USER_LINK_EMULATION32 "elf_i386"
++#define GNU_USER_LINK_EMULATION64 "elf_x86_64"
++#define GNU_USER_LINK_EMULATIONX32 "elf32_x86_64"
++
++#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"
+diff -Nur gcc-4.7.3.orig/gcc/config/linux.h gcc-4.7.3/gcc/config/linux.h
+--- gcc-4.7.3.orig/gcc/config/linux.h	2012-08-14 15:59:04.000000000 +0200
++++ gcc-4.7.3/gcc/config/linux.h	2013-09-14 13:08:52.000000000 +0200
+@@ -33,10 +33,12 @@
+ #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()			\
+@@ -54,18 +56,21 @@
+    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 */
+@@ -85,21 +90,21 @@
+ 
+ #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
+@@ -108,3 +113,74 @@
+ /* 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 -Nur gcc-4.7.3.orig/gcc/config/linux.opt gcc-4.7.3/gcc/config/linux.opt
+--- gcc-4.7.3.orig/gcc/config/linux.opt	2010-09-29 16:51:52.000000000 +0200
++++ gcc-4.7.3/gcc/config/linux.opt	2013-09-14 13:08:52.000000000 +0200
+@@ -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 -Nur gcc-4.7.3.orig/gcc/config/mips/linux.h gcc-4.7.3/gcc/config/mips/linux.h
+--- gcc-4.7.3.orig/gcc/config/mips/linux.h	2011-07-19 20:00:27.000000000 +0200
++++ gcc-4.7.3/gcc/config/mips/linux.h	2013-09-14 13:08:52.000000000 +0200
+@@ -19,3 +19,5 @@
+ <http://www.gnu.org/licenses/>.  */
+ 
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
++
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips.so.1"
+diff -Nur gcc-4.7.3.orig/gcc/config/mips/linux.h.orig gcc-4.7.3/gcc/config/mips/linux.h.orig
+--- gcc-4.7.3.orig/gcc/config/mips/linux.h.orig	1970-01-01 01:00:00.000000000 +0100
++++ gcc-4.7.3/gcc/config/mips/linux.h.orig	2011-07-19 20:00:27.000000000 +0200
+@@ -0,0 +1,21 @@
++/* Definitions for MIPS running Linux-based GNU systems with ELF format.
++   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
++   2007, 2008, 2010, 2011 Free Software Foundation, Inc.
++
++This file is part of GCC.
++
++GCC is free software; you can redistribute it and/or modify
++it under the terms of the GNU General Public License as published by
++the Free Software Foundation; either version 3, or (at your option)
++any later version.
++
++GCC is distributed in the hope that it will be useful,
++but WITHOUT ANY WARRANTY; without even the implied warranty of
++MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++GNU General Public License for more details.
++
++You should have received a copy of the GNU General Public License
++along with GCC; see the file COPYING3.  If not see
++<http://www.gnu.org/licenses/>.  */
++
++#define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
+diff -Nur gcc-4.7.3.orig/gcc/config/rs6000/linux64.h gcc-4.7.3/gcc/config/rs6000/linux64.h
+--- gcc-4.7.3.orig/gcc/config/rs6000/linux64.h	2012-03-12 17:16:51.000000000 +0100
++++ gcc-4.7.3/gcc/config/rs6000/linux64.h	2013-09-14 13:08:52.000000000 +0200
+@@ -362,17 +362,21 @@
+ #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: \
+diff -Nur gcc-4.7.3.orig/gcc/config/rs6000/linux64.h.orig gcc-4.7.3/gcc/config/rs6000/linux64.h.orig
+--- gcc-4.7.3.orig/gcc/config/rs6000/linux64.h.orig	1970-01-01 01:00:00.000000000 +0100
++++ gcc-4.7.3/gcc/config/rs6000/linux64.h.orig	2012-03-12 17:16:51.000000000 +0100
+@@ -0,0 +1,550 @@
++/* Definitions of target machine for GNU compiler,
++   for 64 bit PowerPC linux.
++   Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
++   2009, 2010, 2011  Free Software Foundation, Inc.
++
++   This file is part of GCC.
++
++   GCC is free software; you can redistribute it and/or modify it
++   under the terms of the GNU General Public License as published
++   by the Free Software Foundation; either version 3, or (at your
++   option) any later version.
++
++   GCC is distributed in the hope that it will be useful, but WITHOUT
++   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
++   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
++   License for more details.
++
++   Under Section 7 of GPL version 3, you are granted additional
++   permissions described in the GCC Runtime Library Exception, version
++   3.1, as published by the Free Software Foundation.
++
++   You should have received a copy of the GNU General Public License and
++   a copy of the GCC Runtime Library Exception along with this program;
++   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
++   <http://www.gnu.org/licenses/>.  */
++
++#ifndef RS6000_BI_ARCH
++
++#undef	DEFAULT_ABI
++#define	DEFAULT_ABI ABI_AIX
++
++#undef	TARGET_64BIT
++#define	TARGET_64BIT 1
++
++#define	DEFAULT_ARCH64_P 1
++#define	RS6000_BI_ARCH_P 0
++
++#else
++
++#define	DEFAULT_ARCH64_P (TARGET_DEFAULT & MASK_64BIT)
++#define	RS6000_BI_ARCH_P 1
++
++#endif
++
++#ifdef IN_LIBGCC2
++#undef TARGET_64BIT
++#ifdef __powerpc64__
++#define TARGET_64BIT 1
++#else
++#define TARGET_64BIT 0
++#endif
++#endif
++
++#undef	TARGET_AIX
++#define	TARGET_AIX TARGET_64BIT
++
++#ifdef HAVE_LD_NO_DOT_SYMS
++/* New ABI uses a local sym for the function entry point.  */
++extern int dot_symbols;
++#undef DOT_SYMBOLS
++#define DOT_SYMBOLS dot_symbols
++#endif
++
++#define TARGET_PROFILE_KERNEL profile_kernel
++
++#define TARGET_USES_LINUX64_OPT 1
++#ifdef HAVE_LD_LARGE_TOC
++#undef TARGET_CMODEL
++#define TARGET_CMODEL rs6000_current_cmodel
++#define SET_CMODEL(opt) rs6000_current_cmodel = opt
++#else
++#define SET_CMODEL(opt) do {} while (0)
++#endif
++
++#undef  PROCESSOR_DEFAULT
++#define PROCESSOR_DEFAULT PROCESSOR_POWER7
++#undef  PROCESSOR_DEFAULT64
++#define PROCESSOR_DEFAULT64 PROCESSOR_POWER7
++
++/* We don't need to generate entries in .fixup, except when
++   -mrelocatable or -mrelocatable-lib is given.  */
++#undef RELOCATABLE_NEEDS_FIXUP
++#define RELOCATABLE_NEEDS_FIXUP \
++  (target_flags & target_flags_explicit & MASK_RELOCATABLE)
++
++#undef	RS6000_ABI_NAME
++#define	RS6000_ABI_NAME "linux"
++
++#define INVALID_64BIT "-m%s not supported in this configuration"
++#define INVALID_32BIT INVALID_64BIT
++
++#undef	SUBSUBTARGET_OVERRIDE_OPTIONS
++#define	SUBSUBTARGET_OVERRIDE_OPTIONS				\
++  do								\
++    {								\
++      if (!global_options_set.x_rs6000_alignment_flags)		\
++	rs6000_alignment_flags = MASK_ALIGN_NATURAL;		\
++      if (TARGET_64BIT)						\
++	{							\
++	  if (DEFAULT_ABI != ABI_AIX)				\
++	    {							\
++	      rs6000_current_abi = ABI_AIX;			\
++	      error (INVALID_64BIT, "call");			\
++	    }							\
++	  dot_symbols = !strcmp (rs6000_abi_name, "aixdesc");	\
++	  if (target_flags & MASK_RELOCATABLE)			\
++	    {							\
++	      target_flags &= ~MASK_RELOCATABLE;		\
++	      error (INVALID_64BIT, "relocatable");		\
++	    }							\
++	  if (target_flags & MASK_EABI)				\
++	    {							\
++	      target_flags &= ~MASK_EABI;			\
++	      error (INVALID_64BIT, "eabi");			\
++	    }							\
++	  if (TARGET_PROTOTYPE)					\
++	    {							\
++	      target_prototype = 0;				\
++	      error (INVALID_64BIT, "prototype");		\
++	    }							\
++	  if ((target_flags & MASK_POWERPC64) == 0)		\
++	    {							\
++	      target_flags |= MASK_POWERPC64;			\
++	      error ("-m64 requires a PowerPC64 cpu");		\
++	    }							\
++	  if ((target_flags_explicit & MASK_MINIMAL_TOC) != 0)	\
++	    {							\
++	      if (global_options_set.x_rs6000_current_cmodel	\
++		  && rs6000_current_cmodel != CMODEL_SMALL)	\
++		error ("-mcmodel incompatible with other toc options"); \
++	      SET_CMODEL (CMODEL_SMALL);			\
++	    }							\
++	  else							\
++	    {							\
++	      if (!global_options_set.x_rs6000_current_cmodel)	\
++		SET_CMODEL (CMODEL_MEDIUM);			\
++	      if (rs6000_current_cmodel != CMODEL_SMALL)	\
++		{						\
++		  TARGET_NO_FP_IN_TOC = 0;			\
++		  TARGET_NO_SUM_IN_TOC = 0;			\
++		}						\
++	    }							\
++	}							\
++      else							\
++	{							\
++	  if (!RS6000_BI_ARCH_P)				\
++	    error (INVALID_32BIT, "32");			\
++	  if (TARGET_PROFILE_KERNEL)				\
++	    {							\
++	      TARGET_PROFILE_KERNEL = 0;			\
++	      error (INVALID_32BIT, "profile-kernel");		\
++	    }							\
++	  if (global_options_set.x_rs6000_current_cmodel)	\
++	    {							\
++	      SET_CMODEL (CMODEL_SMALL);			\
++	      error (INVALID_32BIT, "cmodel");			\
++	    }							\
++	}							\
++    }								\
++  while (0)
++
++#undef	ASM_DEFAULT_SPEC
++#undef	ASM_SPEC
++#undef	LINK_OS_LINUX_SPEC
++
++#ifndef	RS6000_BI_ARCH
++#define	ASM_DEFAULT_SPEC "-mppc64"
++#define	ASM_SPEC	 "%(asm_spec64) %(asm_spec_common)"
++#define	LINK_OS_LINUX_SPEC "%(link_os_linux_spec64)"
++#else
++#if DEFAULT_ARCH64_P
++#define	ASM_DEFAULT_SPEC "-mppc%{!m32:64}"
++#define	ASM_SPEC	 "%{m32:%(asm_spec32)}%{!m32:%(asm_spec64)} %(asm_spec_common)"
++#define	LINK_OS_LINUX_SPEC "%{m32:%(link_os_linux_spec32)}%{!m32:%(link_os_linux_spec64)}"
++#else
++#define	ASM_DEFAULT_SPEC "-mppc%{m64:64}"
++#define	ASM_SPEC	 "%{!m64:%(asm_spec32)}%{m64:%(asm_spec64)} %(asm_spec_common)"
++#define	LINK_OS_LINUX_SPEC "%{!m64:%(link_os_linux_spec32)}%{m64:%(link_os_linux_spec64)}"
++#endif
++#endif
++
++#define ASM_SPEC32 "-a32 \
++%{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \
++%{memb} %{!memb: %{msdata=eabi: -memb}} \
++%{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
++    %{mcall-freebsd: -mbig} \
++    %{mcall-i960-old: -mlittle} \
++    %{mcall-linux: -mbig} \
++    %{mcall-netbsd: -mbig} \
++}}}}"
++
++#define ASM_SPEC64 "-a64"
++
++#define ASM_SPEC_COMMON "%(asm_cpu) \
++%{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
++%{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian}"
++
++#undef	SUBSUBTARGET_EXTRA_SPECS
++#define SUBSUBTARGET_EXTRA_SPECS \
++  { "asm_spec_common",		ASM_SPEC_COMMON },			\
++  { "asm_spec32",		ASM_SPEC32 },				\
++  { "asm_spec64",		ASM_SPEC64 },				\
++  { "link_os_linux_spec32",	LINK_OS_LINUX_SPEC32 },			\
++  { "link_os_linux_spec64",	LINK_OS_LINUX_SPEC64 },
++
++#undef	MULTILIB_DEFAULTS
++#if DEFAULT_ARCH64_P
++#define MULTILIB_DEFAULTS { "m64" }
++#else
++#define MULTILIB_DEFAULTS { "m32" }
++#endif
++
++#ifndef RS6000_BI_ARCH
++
++/* 64-bit PowerPC Linux is always big-endian.  */
++#undef	TARGET_LITTLE_ENDIAN
++#define TARGET_LITTLE_ENDIAN	0
++
++/* 64-bit PowerPC Linux always has a TOC.  */
++#undef  TARGET_TOC
++#define	TARGET_TOC		1
++
++/* Some things from sysv4.h we don't do when 64 bit.  */
++#undef	TARGET_RELOCATABLE
++#define	TARGET_RELOCATABLE	0
++#undef	TARGET_EABI
++#define	TARGET_EABI		0
++#undef	TARGET_PROTOTYPE
++#define	TARGET_PROTOTYPE	0
++#undef RELOCATABLE_NEEDS_FIXUP
++#define RELOCATABLE_NEEDS_FIXUP 0
++
++#endif
++
++/* We use glibc _mcount for profiling.  */
++#define NO_PROFILE_COUNTERS 1
++#define PROFILE_HOOK(LABEL) \
++  do { if (TARGET_64BIT) output_profile_hook (LABEL); } while (0)
++
++/* PowerPC64 Linux word-aligns FP doubles when -malign-power is given.  */
++#undef  ADJUST_FIELD_ALIGN
++#define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
++  ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE)	\
++   ? 128								\
++   : (TARGET_64BIT							\
++      && TARGET_ALIGN_NATURAL == 0					\
++      && TYPE_MODE (strip_array_types (TREE_TYPE (FIELD))) == DFmode)	\
++   ? MIN ((COMPUTED), 32)						\
++   : (COMPUTED))
++
++/* PowerPC64 Linux increases natural record alignment to doubleword if
++   the first field is an FP double, only if in power alignment mode.  */
++#undef  ROUND_TYPE_ALIGN
++#define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED)			\
++  ((TARGET_64BIT							\
++    && (TREE_CODE (STRUCT) == RECORD_TYPE				\
++	|| TREE_CODE (STRUCT) == UNION_TYPE				\
++	|| TREE_CODE (STRUCT) == QUAL_UNION_TYPE)			\
++    && TARGET_ALIGN_NATURAL == 0)					\
++   ? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED)	\
++   : MAX ((COMPUTED), (SPECIFIED)))
++
++/* Use the default for compiling target libs.  */
++#ifdef IN_TARGET_LIBS
++#undef TARGET_ALIGN_NATURAL
++#define TARGET_ALIGN_NATURAL 1
++#endif
++
++/* Indicate that jump tables go in the text section.  */
++#undef  JUMP_TABLES_IN_TEXT_SECTION
++#define JUMP_TABLES_IN_TEXT_SECTION TARGET_64BIT
++
++/* The linux ppc64 ABI isn't explicit on whether aggregates smaller
++   than a doubleword should be padded upward or downward.  You could
++   reasonably assume that they follow the normal rules for structure
++   layout treating the parameter area as any other block of memory,
++   then map the reg param area to registers.  i.e. pad upward.
++   Setting both of the following defines results in this behavior.
++   Setting just the first one will result in aggregates that fit in a
++   doubleword being padded downward, and others being padded upward.
++   Not a bad idea as this results in struct { int x; } being passed
++   the same way as an int.  */
++#define AGGREGATE_PADDING_FIXED TARGET_64BIT
++#define AGGREGATES_PAD_UPWARD_ALWAYS 0
++
++/* Specify padding for the last element of a block move between
++   registers and memory.  FIRST is nonzero if this is the only
++   element.  */
++#define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \
++  (!(FIRST) ? upward : FUNCTION_ARG_PADDING (MODE, TYPE))
++
++/* Linux doesn't support saving and restoring 64-bit regs in a 32-bit
++   process.  */
++#define OS_MISSING_POWERPC64 !TARGET_64BIT
++
++#ifdef SINGLE_LIBC
++#define OPTION_GLIBC  (DEFAULT_LIBC == LIBC_GLIBC)
++#else
++#define OPTION_GLIBC  (linux_libc == LIBC_GLIBC)
++#endif
++
++/* glibc has float and long double forms of math functions.  */
++#undef  TARGET_C99_FUNCTIONS
++#define TARGET_C99_FUNCTIONS (OPTION_GLIBC)
++
++/* Whether we have sincos that follows the GNU extension.  */
++#undef  TARGET_HAS_SINCOS
++#define TARGET_HAS_SINCOS (OPTION_GLIBC)
++
++#undef  TARGET_OS_CPP_BUILTINS
++#define TARGET_OS_CPP_BUILTINS()			\
++  do							\
++    {							\
++      if (TARGET_64BIT)					\
++	{						\
++	  builtin_define ("__PPC__");			\
++	  builtin_define ("__PPC64__");			\
++	  builtin_define ("__powerpc__");		\
++	  builtin_define ("__powerpc64__");		\
++	  builtin_assert ("cpu=powerpc64");		\
++	  builtin_assert ("machine=powerpc64");		\
++	}						\
++      else						\
++	{						\
++	  builtin_define_std ("PPC");			\
++	  builtin_define_std ("powerpc");		\
++	  builtin_assert ("cpu=powerpc");		\
++	  builtin_assert ("machine=powerpc");		\
++	  TARGET_OS_SYSV_CPP_BUILTINS ();		\
++	}						\
++    }							\
++  while (0)
++
++#undef  CPP_OS_DEFAULT_SPEC
++#define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
++
++/* The GNU C++ standard library currently requires _GNU_SOURCE being
++   defined on glibc-based systems. This temporary hack accomplishes this,
++   it should go away as soon as libstdc++-v3 has a real fix.  */
++#undef  CPLUSPLUS_CPP_SPEC
++#define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
++
++#undef  LINK_SHLIB_SPEC
++#define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
++
++#undef  LIB_DEFAULT_SPEC
++#define LIB_DEFAULT_SPEC "%(lib_linux)"
++
++#undef  STARTFILE_DEFAULT_SPEC
++#define STARTFILE_DEFAULT_SPEC "%(startfile_linux)"
++
++#undef	ENDFILE_DEFAULT_SPEC
++#define ENDFILE_DEFAULT_SPEC "%(endfile_linux)"
++
++#undef	LINK_START_DEFAULT_SPEC
++#define LINK_START_DEFAULT_SPEC "%(link_start_linux)"
++
++#undef	LINK_OS_DEFAULT_SPEC
++#define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
++
++#define GLIBC_DYNAMIC_LINKER32 "/lib/ld.so.1"
++#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"
++#if DEFAULT_LIBC == LIBC_UCLIBC
++#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
++#elif DEFAULT_LIBC == LIBC_GLIBC
++#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
++#else
++#error "Unsupported DEFAULT_LIBC"
++#endif
++#define GNU_USER_DYNAMIC_LINKER32 \
++  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32)
++#define GNU_USER_DYNAMIC_LINKER64 \
++  CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64)
++
++
++#define LINK_OS_LINUX_SPEC32 "-m elf32ppclinux %{!shared: %{!static: \
++  %{rdynamic:-export-dynamic} \
++  -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}}"
++
++#define LINK_OS_LINUX_SPEC64 "-m elf64ppc %{!shared: %{!static: \
++  %{rdynamic:-export-dynamic} \
++  -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}}"
++
++#undef  TOC_SECTION_ASM_OP
++#define TOC_SECTION_ASM_OP \
++  (TARGET_64BIT						\
++   ? "\t.section\t\".toc\",\"aw\""			\
++   : "\t.section\t\".got\",\"aw\"")
++
++#undef  MINIMAL_TOC_SECTION_ASM_OP
++#define MINIMAL_TOC_SECTION_ASM_OP \
++  (TARGET_64BIT						\
++   ? "\t.section\t\".toc1\",\"aw\""			\
++   : ((TARGET_RELOCATABLE || flag_pic)			\
++      ? "\t.section\t\".got2\",\"aw\""			\
++      : "\t.section\t\".got1\",\"aw\""))
++
++/* Must be at least as big as our pointer type.  */
++#undef	SIZE_TYPE
++#define	SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
++
++#undef	PTRDIFF_TYPE
++#define	PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
++
++#undef	WCHAR_TYPE
++#define	WCHAR_TYPE (TARGET_64BIT ? "int" : "long int")
++#undef  WCHAR_TYPE_SIZE
++#define WCHAR_TYPE_SIZE 32
++
++/* Override rs6000.h definition.  */
++#undef  ASM_APP_ON
++#define ASM_APP_ON "#APP\n"
++
++/* Override rs6000.h definition.  */
++#undef  ASM_APP_OFF
++#define ASM_APP_OFF "#NO_APP\n"
++
++/* PowerPC no-op instruction.  */
++#undef  RS6000_CALL_GLUE
++#define RS6000_CALL_GLUE (TARGET_64BIT ? "nop" : "cror 31,31,31")
++
++#undef  RS6000_MCOUNT
++#define RS6000_MCOUNT "_mcount"
++
++#ifdef __powerpc64__
++/* _init and _fini functions are built from bits spread across many
++   object files, each potentially with a different TOC pointer.  For
++   that reason, place a nop after the call so that the linker can
++   restore the TOC pointer if a TOC adjusting call stub is needed.  */
++#if DOT_SYMBOLS
++#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC)	\
++  asm (SECTION_OP "\n"					\
++"	bl ." #FUNC "\n"				\
++"	nop\n"						\
++"	.previous");
++#else
++#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC)	\
++  asm (SECTION_OP "\n"					\
++"	bl " #FUNC "\n"					\
++"	nop\n"						\
++"	.previous");
++#endif
++#endif
++
++/* FP save and restore routines.  */
++#undef  SAVE_FP_PREFIX
++#define SAVE_FP_PREFIX (TARGET_64BIT ? "._savef" : "_savefpr_")
++#undef  SAVE_FP_SUFFIX
++#define SAVE_FP_SUFFIX ""
++#undef  RESTORE_FP_PREFIX
++#define RESTORE_FP_PREFIX (TARGET_64BIT ? "._restf" : "_restfpr_")
++#undef  RESTORE_FP_SUFFIX
++#define RESTORE_FP_SUFFIX ""