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-rw-r--r--package/gcc/patches/4.8.3/musl-cross.patch633
-rw-r--r--package/gcc/patches/4.8.3/musl-stubs.patch49
-rw-r--r--package/gcc/patches/4.8.3/patch-libatomic_Makefile_in12
-rw-r--r--toolchain/gcc/Makefile.inc4
-rw-r--r--toolchain/gcc/patches/4.8.3/cflags.patch231
-rw-r--r--toolchain/gcc/patches/4.8.3/miscompile.sparc154
-rw-r--r--toolchain/gcc/patches/4.8.3/musl-cross.patch633
-rw-r--r--toolchain/gcc/patches/4.8.3/musl-stubs.patch49
8 files changed, 1763 insertions, 2 deletions
diff --git a/package/gcc/patches/4.8.3/musl-cross.patch b/package/gcc/patches/4.8.3/musl-cross.patch
new file mode 100644
index 000000000..4150dfcdf
--- /dev/null
+++ b/package/gcc/patches/4.8.3/musl-cross.patch
@@ -0,0 +1,633 @@
+diff -Nur gcc-4.8.3.orig/fixincludes/mkfixinc.sh gcc-4.8.3/fixincludes/mkfixinc.sh
+--- gcc-4.8.3.orig/fixincludes/mkfixinc.sh 2012-10-28 22:42:48.000000000 +0100
++++ gcc-4.8.3/fixincludes/mkfixinc.sh 2014-05-23 08:22:46.987415702 +0200
+@@ -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}
+diff -Nur gcc-4.8.3.orig/gcc/config/aarch64/aarch64-linux.h gcc-4.8.3/gcc/config/aarch64/aarch64-linux.h
+--- gcc-4.8.3.orig/gcc/config/aarch64/aarch64-linux.h 2013-08-13 15:22:18.000000000 +0200
++++ gcc-4.8.3/gcc/config/aarch64/aarch64-linux.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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}"
+
+diff -Nur gcc-4.8.3.orig/gcc/config/arm/linux-eabi.h gcc-4.8.3/gcc/config/arm/linux-eabi.h
+--- gcc-4.8.3.orig/gcc/config/arm/linux-eabi.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/arm/linux-eabi.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/i386/linux64.h gcc-4.8.3/gcc/config/i386/linux64.h
+--- gcc-4.8.3.orig/gcc/config/i386/linux64.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/i386/linux64.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/i386/linux.h gcc-4.8.3/gcc/config/i386/linux.h
+--- gcc-4.8.3.orig/gcc/config/i386/linux.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/i386/linux.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/linux.h gcc-4.8.3/gcc/config/linux.h
+--- gcc-4.8.3.orig/gcc/config/linux.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/linux.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/linux.opt gcc-4.8.3/gcc/config/linux.opt
+--- gcc-4.8.3.orig/gcc/config/linux.opt 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/linux.opt 2014-05-23 08:22:46.987415702 +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-4.8.3.orig/gcc/config/microblaze/linux.h gcc-4.8.3/gcc/config/microblaze/linux.h
+--- gcc-4.8.3.orig/gcc/config/microblaze/linux.h 2013-03-14 16:43:23.000000000 +0100
++++ gcc-4.8.3/gcc/config/microblaze/linux.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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 }
+diff -Nur gcc-4.8.3.orig/gcc/config/mips/linux.h gcc-4.8.3/gcc/config/mips/linux.h
+--- gcc-4.8.3.orig/gcc/config/mips/linux.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/mips/linux.h 2014-05-23 08:22:48.643418636 +0200
+@@ -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"
+diff -Nur gcc-4.8.3.orig/gcc/config/rs6000/linux64.h gcc-4.8.3/gcc/config/rs6000/linux64.h
+--- gcc-4.8.3.orig/gcc/config/rs6000/linux64.h 2014-04-04 17:10:24.000000000 +0200
++++ gcc-4.8.3/gcc/config/rs6000/linux64.h 2014-05-23 08:22:48.643418636 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/rs6000/secureplt.h gcc-4.8.3/gcc/config/rs6000/secureplt.h
+--- gcc-4.8.3.orig/gcc/config/rs6000/secureplt.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/rs6000/secureplt.h 2014-05-23 08:22:48.643418636 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/rs6000/sysv4.h gcc-4.8.3/gcc/config/rs6000/sysv4.h
+--- gcc-4.8.3.orig/gcc/config/rs6000/sysv4.h 2014-04-04 16:50:31.000000000 +0200
++++ gcc-4.8.3/gcc/config/rs6000/sysv4.h 2014-05-23 08:22:48.643418636 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/sh/linux.h gcc-4.8.3/gcc/config/sh/linux.h
+--- gcc-4.8.3.orig/gcc/config/sh/linux.h 2013-03-14 04:01:53.000000000 +0100
++++ gcc-4.8.3/gcc/config/sh/linux.h 2014-05-23 08:22:48.643418636 +0200
+@@ -43,7 +43,14 @@
+
+ #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+
++#if TARGET_ENDIAN_DEFAULT == 0 /* 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"
+diff -Nur gcc-4.8.3.orig/gcc/config.gcc gcc-4.8.3/gcc/config.gcc
+--- gcc-4.8.3.orig/gcc/config.gcc 2014-05-06 17:29:04.000000000 +0200
++++ gcc-4.8.3/gcc/config.gcc 2014-05-23 08:22:49.895420854 +0200
+@@ -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"
+ ;;
+@@ -2135,6 +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 ${tm_file}"
+ fi
+diff -Nur gcc-4.8.3.orig/gcc/configure gcc-4.8.3/gcc/configure
+--- gcc-4.8.3.orig/gcc/configure 2014-04-28 12:05:29.000000000 +0200
++++ gcc-4.8.3/gcc/configure 2014-05-23 08:22:49.903420868 +0200
+@@ -26821,6 +26821,9 @@
+ else
+ gcc_cv_libc_provides_ssp=no
+ case "$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.
+@@ -26854,6 +26857,7 @@
+ # <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 "$LINENO" "__stack_chk_fail" "ac_cv_func___stack_chk_fail"
+@@ -26936,6 +26940,9 @@
+ gcc_cv_target_dl_iterate_phdr=no
+ fi
+ ;;
++ *-linux-musl*)
++ gcc_cv_target_dl_iterate_phdr=yes
++ ;;
+ esac
+
+ if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+diff -Nur gcc-4.8.3.orig/gcc/configure.ac gcc-4.8.3/gcc/configure.ac
+--- gcc-4.8.3.orig/gcc/configure.ac 2014-04-28 12:05:29.000000000 +0200
++++ gcc-4.8.3/gcc/configure.ac 2014-05-23 08:22:49.903420868 +0200
+@@ -4750,6 +4750,9 @@
+ gcc_cv_libc_provides_ssp,
+ [gcc_cv_libc_provides_ssp=no
+ case "$target" in
++ *-*-musl*)
++ # All versions of musl provide stack protector
++ gcc_cv_libc_provides_ssp=yes;;
+ *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
+ [# glibc 2.4 and later provides __stack_chk_fail and
+ # either __stack_chk_guard, or TLS access to stack guard canary.
+@@ -4783,6 +4786,7 @@
+ # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
+ # simply assert that glibc does provide this, which is true for all
+ # realistically usable GNU/Hurd configurations.
++ # All supported versions of musl provide it as well
+ gcc_cv_libc_provides_ssp=yes;;
+ *-*-darwin* | *-*-freebsd*)
+ AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
+@@ -4848,6 +4852,9 @@
+ gcc_cv_target_dl_iterate_phdr=no
+ fi
+ ;;
++ *-linux-musl*)
++ gcc_cv_target_dl_iterate_phdr=yes
++ ;;
+ esac
+ GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR])
+ if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+diff -Nur gcc-4.8.3.orig/gcc/ginclude/stddef.h gcc-4.8.3/gcc/ginclude/stddef.h
+--- gcc-4.8.3.orig/gcc/ginclude/stddef.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/ginclude/stddef.h 2014-05-23 08:22:49.903420868 +0200
+@@ -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 */
+diff -Nur gcc-4.8.3.orig/libgcc/unwind-dw2-fde-dip.c gcc-4.8.3/libgcc/unwind-dw2-fde-dip.c
+--- gcc-4.8.3.orig/libgcc/unwind-dw2-fde-dip.c 2013-02-04 20:06:20.000000000 +0100
++++ gcc-4.8.3/libgcc/unwind-dw2-fde-dip.c 2014-05-23 08:22:49.955420959 +0200
+@@ -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)))
+-# 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__)
++#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) && defined(TARGET_DL_ITERATE_PHDR)
+ # define USE_PT_GNU_EH_FRAME
++# ifdef __OpenBSD__
++# define ElfW(type) Elf_##typ
++# elif defined(__FreeBSD__) && __FreeBSD__ >= 7
++# define ElfW __ElfN
++# endif
+ #endif
+
+ #if defined(USE_PT_GNU_EH_FRAME)
+diff -Nur gcc-4.8.3.orig/libgomp/config/posix/time.c gcc-4.8.3/libgomp/config/posix/time.c
+--- gcc-4.8.3.orig/libgomp/config/posix/time.c 2013-01-14 19:18:49.000000000 +0100
++++ gcc-4.8.3/libgomp/config/posix/time.c 2014-05-23 08:22:49.975420996 +0200
+@@ -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 -Nur gcc-4.8.3.orig/libitm/config/arm/hwcap.cc gcc-4.8.3/libitm/config/arm/hwcap.cc
+--- gcc-4.8.3.orig/libitm/config/arm/hwcap.cc 2013-02-03 18:46:11.000000000 +0100
++++ gcc-4.8.3/libitm/config/arm/hwcap.cc 2014-05-23 08:22:49.979421003 +0200
+@@ -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))
+diff -Nur gcc-4.8.3.orig/libitm/config/linux/x86/tls.h gcc-4.8.3/libitm/config/linux/x86/tls.h
+--- gcc-4.8.3.orig/libitm/config/linux/x86/tls.h 2013-02-03 18:46:11.000000000 +0100
++++ gcc-4.8.3/libitm/config/linux/x86/tls.h 2014-05-23 08:22:49.999421038 +0200
+@@ -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
+diff -Nur gcc-4.8.3.orig/libstdc++-v3/configure.host gcc-4.8.3/libstdc++-v3/configure.host
+--- gcc-4.8.3.orig/libstdc++-v3/configure.host 2013-06-19 03:18:38.000000000 +0200
++++ gcc-4.8.3/libstdc++-v3/configure.host 2014-05-23 08:22:50.015421065 +0200
+@@ -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"
+ ;;
diff --git a/package/gcc/patches/4.8.3/musl-stubs.patch b/package/gcc/patches/4.8.3/musl-stubs.patch
new file mode 100644
index 000000000..35050fd9c
--- /dev/null
+++ b/package/gcc/patches/4.8.3/musl-stubs.patch
@@ -0,0 +1,49 @@
+diff -Nur gcc-4.8.2.orig/gcc/config/m68k/linux.h gcc-4.8.2/gcc/config/m68k/linux.h
+--- gcc-4.8.2.orig/gcc/config/m68k/linux.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.2/gcc/config/m68k/linux.h 2014-02-24 10:19:00.214399704 +0100
+@@ -72,6 +72,7 @@
+ done. */
+
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-m68k.so.1"
+
+ #undef LINK_SPEC
+ #define LINK_SPEC "-m m68kelf %{shared} \
+diff -Nur gcc-4.8.2.orig/gcc/config/mips/linux64.h gcc-4.8.2/gcc/config/mips/linux64.h
+--- gcc-4.8.2.orig/gcc/config/mips/linux64.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.2/gcc/config/mips/linux64.h 2014-02-24 10:19:47.238583895 +0100
+@@ -27,6 +27,9 @@
+ #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_LINKER32 "/lib/ld-musl-mips.so.1"
++#define MUSL_DYNAMIC_LINKERN32 "/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)
+diff -Nur gcc-4.8.2.orig/gcc/config/sparc/linux64.h gcc-4.8.2/gcc/config/sparc/linux64.h
+--- gcc-4.8.2.orig/gcc/config/sparc/linux64.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.2/gcc/config/sparc/linux64.h 2014-02-24 10:20:49.414827006 +0100
+@@ -94,6 +94,9 @@
+
+ #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+ #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-sparc.so.1"
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-sparc.so.1"
++
+
+ #ifdef SPARC_BI_ARCH
+
+diff -Nur gcc-4.8.2.orig/gcc/config/sparc/linux.h gcc-4.8.2/gcc/config/sparc/linux.h
+--- gcc-4.8.2.orig/gcc/config/sparc/linux.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.2/gcc/config/sparc/linux.h 2014-02-24 10:21:14.342924339 +0100
+@@ -84,6 +84,7 @@
+ done. */
+
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-sparc.so.1"
+
+ #undef LINK_SPEC
+ #define LINK_SPEC "-m elf32_sparc %{shared:-shared} \
diff --git a/package/gcc/patches/4.8.3/patch-libatomic_Makefile_in b/package/gcc/patches/4.8.3/patch-libatomic_Makefile_in
new file mode 100644
index 000000000..e67a62dd3
--- /dev/null
+++ b/package/gcc/patches/4.8.3/patch-libatomic_Makefile_in
@@ -0,0 +1,12 @@
+--- gcc-4.8.2.orig/libatomic/Makefile.in 2013-10-16 09:27:58.000000000 +0200
++++ gcc-4.8.2/libatomic/Makefile.in 2014-01-01 11:37:38.000000000 +0100
+@@ -298,7 +298,8 @@ PAT_N = $(word 2,$(PAT_SPLIT))
+ PAT_S = $(word 3,$(PAT_SPLIT))
+ IFUNC_DEF = -DIFUNC_ALT=$(PAT_S)
+ IFUNC_OPT = $(word $(PAT_S),$(IFUNC_OPTIONS))
+-M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
++@AMDEP_TRUE@M_DEPS = -MT $@ -MD -MP -MF $(DEPDIR)/$(@F).Ppo
++@AMDEP_FALSE@M_DEPS =
+ M_SIZE = -DN=$(PAT_N)
+ M_IFUNC = $(if $(PAT_S),$(IFUNC_DEF) $(IFUNC_OPT))
+ M_FILE = $(PAT_BASE)_n.c
diff --git a/toolchain/gcc/Makefile.inc b/toolchain/gcc/Makefile.inc
index b292e3331..31040bb56 100644
--- a/toolchain/gcc/Makefile.inc
+++ b/toolchain/gcc/Makefile.inc
@@ -2,8 +2,8 @@
# material, please see the LICENCE file in the top-level directory.
PKG_NAME:= gcc
-PKG_VERSION:= 4.8.2
-PKG_MD5SUM:= deca88241c1135e2ff9fa5486ab5957b
+PKG_VERSION:= 4.8.3
+PKG_MD5SUM:= e2c60f5ef918be2db08df96c7d97d0c4
PKG_RELEASE:= 1
PKG_SITES:= ${MASTER_SITE_GNU:=gcc/gcc-${PKG_VERSION}/}
DISTFILES:= ${PKG_NAME}-${PKG_VERSION}.tar.gz
diff --git a/toolchain/gcc/patches/4.8.3/cflags.patch b/toolchain/gcc/patches/4.8.3/cflags.patch
new file mode 100644
index 000000000..4f9de8069
--- /dev/null
+++ b/toolchain/gcc/patches/4.8.3/cflags.patch
@@ -0,0 +1,231 @@
+diff -Nur gcc-4.8.2.orig/gcc/c-family/c.opt gcc-4.8.2/gcc/c-family/c.opt
+--- gcc-4.8.2.orig/gcc/c-family/c.opt 2013-01-19 06:25:25.000000000 +0100
++++ gcc-4.8.2/gcc/c-family/c.opt 2014-02-23 20:22:48.000000000 +0100
+@@ -379,6 +379,10 @@
+ C ObjC RejectNegative Warning Alias(Werror=, implicit-function-declaration)
+ This switch is deprecated; use -Werror=implicit-function-declaration instead
+
++Werror-maybe-reset
++C ObjC C++ ObjC++
++; Documented in common.opt
++
+ Wfloat-equal
+ C ObjC C++ ObjC++ Var(warn_float_equal) Warning
+ Warn if testing floating point numbers for equality
+@@ -949,6 +953,9 @@
+ fhonor-std
+ C++ ObjC++ Ignore Warn(switch %qs is no longer supported)
+
++fhonour-copts
++C ObjC C++ ObjC++ RejectNegative
++
+ fhosted
+ C ObjC
+ Assume normal C execution environment
+diff -Nur gcc-4.8.2.orig/gcc/c-family/c-opts.c gcc-4.8.2/gcc/c-family/c-opts.c
+--- gcc-4.8.2.orig/gcc/c-family/c-opts.c 2013-02-18 20:42:56.000000000 +0100
++++ gcc-4.8.2/gcc/c-family/c-opts.c 2014-02-23 20:22:48.000000000 +0100
+@@ -104,6 +104,9 @@
+ /* Whether any standard preincluded header has been preincluded. */
+ static bool done_preinclude;
+
++/* Check if a port honours COPTS. */
++static int honour_copts = 0;
++
+ static void handle_OPT_d (const char *);
+ static void set_std_cxx98 (int);
+ static void set_std_cxx11 (int);
+@@ -491,6 +494,12 @@
+ flag_no_builtin = !value;
+ break;
+
++ case OPT_fhonour_copts:
++ if (c_language == clk_c) {
++ honour_copts++;
++ }
++ break;
++
+ case OPT_fconstant_string_class_:
+ constant_string_class_name = arg;
+ break;
+@@ -1027,6 +1036,47 @@
+ return false;
+ }
+
++ if (c_language == clk_c) {
++ char *ev = getenv ("GCC_HONOUR_COPTS");
++ int evv;
++ if (ev == NULL)
++ evv = -1;
++ else if ((*ev == '0') || (*ev == '\0'))
++ evv = 0;
++ else if (*ev == '1')
++ evv = 1;
++ else if (*ev == '2')
++ evv = 2;
++ else if (*ev == 's')
++ evv = -1;
++ else {
++ warning (0, "unknown GCC_HONOUR_COPTS value, assuming 1");
++ evv = 1; /* maybe depend this on something like MIRBSD_NATIVE? */
++ }
++ if (evv == 1) {
++ if (honour_copts == 0) {
++ error ("someone does not honour COPTS at all in lenient mode");
++ return false;
++ } else if (honour_copts != 1) {
++ warning (0, "someone does not honour COPTS correctly, passed %d times",
++ honour_copts);
++ }
++ } else if (evv == 2) {
++ if (honour_copts == 0) {
++ error ("someone does not honour COPTS at all in strict mode");
++ return false;
++ } else if (honour_copts != 1) {
++ error ("someone does not honour COPTS correctly, passed %d times",
++ honour_copts);
++ return false;
++ }
++ } else if (evv == 0) {
++ if (honour_copts != 1)
++ inform (0, "someone does not honour COPTS correctly, passed %d times",
++ honour_copts);
++ }
++ }
++
+ return true;
+ }
+
+diff -Nur gcc-4.8.2.orig/gcc/common.opt gcc-4.8.2/gcc/common.opt
+--- gcc-4.8.2.orig/gcc/common.opt 2013-03-14 10:13:36.000000000 +0100
++++ gcc-4.8.2/gcc/common.opt 2014-02-23 20:22:48.000000000 +0100
+@@ -541,6 +541,10 @@
+ Common Joined
+ Treat specified warning as error
+
++Werror-maybe-reset
++Common
++If environment variable GCC_NO_WERROR is set, act as -Wno-error
++
+ Wextra
+ Common Var(extra_warnings) Warning
+ Print extra (possibly unwanted) warnings
+@@ -1242,6 +1246,9 @@
+ Common Report Var(flag_guess_branch_prob) Optimization
+ Enable guessing of branch probabilities
+
++fhonour-copts
++Common RejectNegative
++
+ ; Nonzero means ignore `#ident' directives. 0 means handle them.
+ ; Generate position-independent code for executables if possible
+ ; On SVR4 targets, it also controls whether or not to emit a
+diff -Nur gcc-4.8.2.orig/gcc/doc/cppopts.texi gcc-4.8.2/gcc/doc/cppopts.texi
+--- gcc-4.8.2.orig/gcc/doc/cppopts.texi 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.2/gcc/doc/cppopts.texi 2014-02-23 20:22:48.000000000 +0100
+@@ -163,6 +163,11 @@
+ Make all warnings into hard errors. Source code which triggers warnings
+ will be rejected.
+
++ at item -Werror-maybe-reset
++ at opindex Werror-maybe-reset
++Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
++variable is set to anything other than 0 or empty.
++
+ @item -Wsystem-headers
+ @opindex Wsystem-headers
+ Issue warnings for code in system headers. These are normally unhelpful
+diff -Nur gcc-4.8.2.orig/gcc/doc/invoke.texi gcc-4.8.2/gcc/doc/invoke.texi
+--- gcc-4.8.2.orig/gcc/doc/invoke.texi 2013-06-19 21:55:50.000000000 +0200
++++ gcc-4.8.2/gcc/doc/invoke.texi 2014-02-23 20:22:48.000000000 +0100
+@@ -240,7 +240,7 @@
+ -Wconversion -Wcoverage-mismatch -Wno-cpp -Wno-deprecated @gol
+ -Wno-deprecated-declarations -Wdisabled-optimization @gol
+ -Wno-div-by-zero -Wdouble-promotion -Wempty-body -Wenum-compare @gol
+--Wno-endif-labels -Werror -Werror=* @gol
++-Wno-endif-labels -Werror -Werror=* -Werror-maybe-reset @gol
+ -Wfatal-errors -Wfloat-equal -Wformat -Wformat=2 @gol
+ -Wno-format-contains-nul -Wno-format-extra-args -Wformat-nonliteral @gol
+ -Wformat-security -Wformat-y2k @gol
+@@ -4807,6 +4807,22 @@
+ @option{-Wall} and by @option{-Wpedantic}, which can be disabled with
+ @option{-Wno-pointer-sign}.
+
++ at item -Werror-maybe-reset
++ at opindex Werror-maybe-reset
++Act like @samp{-Wno-error} if the @env{GCC_NO_WERROR} environment
++variable is set to anything other than 0 or empty.
++
++ at item -fhonour-copts
++ at opindex fhonour-copts
++If @env{GCC_HONOUR_COPTS} is set to 1, abort if this option is not
++given at least once, and warn if it is given more than once.
++If @env{GCC_HONOUR_COPTS} is set to 2, abort if this option is not
++given exactly once.
++If @env{GCC_HONOUR_COPTS} is set to 0 or unset, warn if this option
++is not given exactly once.
++The warning is quelled if @env{GCC_HONOUR_COPTS} is set to @samp{s}.
++This flag and environment variable only affect the C language.
++
+ @item -Wstack-protector
+ @opindex Wstack-protector
+ @opindex Wno-stack-protector
+@@ -6918,7 +6934,7 @@
+ second branch or a point immediately following it, depending on whether
+ the condition is known to be true or false.
+
+-Enabled at levels @option{-O2}, @option{-O3}, @option{-Os}.
++Enabled at levels @option{-O3}.
+
+ @item -fsplit-wide-types
+ @opindex fsplit-wide-types
+diff -Nur gcc-4.8.2.orig/gcc/java/jvspec.c gcc-4.8.2/gcc/java/jvspec.c
+--- gcc-4.8.2.orig/gcc/java/jvspec.c 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.2/gcc/java/jvspec.c 2014-02-23 20:22:48.000000000 +0100
+@@ -626,6 +626,7 @@
+ class name. Append dummy `.c' that can be stripped by set_input so %b
+ is correct. */
+ set_input (concat (main_class_name, "main.c", NULL));
++ putenv ("GCC_HONOUR_COPTS=s"); /* XXX hack! */
+ err = do_spec (jvgenmain_spec);
+ if (err == 0)
+ {
+diff -Nur gcc-4.8.2.orig/gcc/opts.c gcc-4.8.2/gcc/opts.c
+--- gcc-4.8.2.orig/gcc/opts.c 2013-03-05 07:01:13.000000000 +0100
++++ gcc-4.8.2/gcc/opts.c 2014-02-23 20:22:48.000000000 +0100
+@@ -468,8 +468,6 @@
+ { OPT_LEVELS_2_PLUS, OPT_fschedule_insns2, NULL, 1 },
+ #endif
+ { OPT_LEVELS_2_PLUS, OPT_fregmove, NULL, 1 },
+- { OPT_LEVELS_2_PLUS, OPT_fstrict_aliasing, NULL, 1 },
+- { OPT_LEVELS_2_PLUS, OPT_fstrict_overflow, NULL, 1 },
+ { OPT_LEVELS_2_PLUS, OPT_freorder_blocks, NULL, 1 },
+ { OPT_LEVELS_2_PLUS, OPT_freorder_functions, NULL, 1 },
+ { OPT_LEVELS_2_PLUS, OPT_ftree_vrp, NULL, 1 },
+@@ -488,6 +486,8 @@
+ { OPT_LEVELS_2_PLUS, OPT_fhoist_adjacent_loads, NULL, 1 },
+
+ /* -O3 optimizations. */
++ { OPT_LEVELS_3_PLUS, OPT_fstrict_aliasing, NULL, 1 },
++ { OPT_LEVELS_3_PLUS, OPT_fstrict_overflow, NULL, 1 },
+ { OPT_LEVELS_3_PLUS, OPT_ftree_loop_distribute_patterns, NULL, 1 },
+ { OPT_LEVELS_3_PLUS, OPT_fpredictive_commoning, NULL, 1 },
+ /* Inlining of functions reducing size is a good idea with -Os
+@@ -1423,6 +1423,17 @@
+ opts, opts_set, loc, dc);
+ break;
+
++ case OPT_Werror_maybe_reset:
++ {
++ char *ev = getenv ("GCC_NO_WERROR");
++ if ((ev != NULL) && (*ev != '0'))
++ warnings_are_errors = 0;
++ }
++ break;
++
++ case OPT_fhonour_copts:
++ break;
++
+ case OPT_Wlarger_than_:
+ opts->x_larger_than_size = value;
+ opts->x_warn_larger_than = value != -1;
diff --git a/toolchain/gcc/patches/4.8.3/miscompile.sparc b/toolchain/gcc/patches/4.8.3/miscompile.sparc
new file mode 100644
index 000000000..b7ac26396
--- /dev/null
+++ b/toolchain/gcc/patches/4.8.3/miscompile.sparc
@@ -0,0 +1,154 @@
+diff -Nur gcc-4.8.3.orig/gcc/tree-ssa-forwprop.c gcc-4.8.3/gcc/tree-ssa-forwprop.c
+--- gcc-4.8.3.orig/gcc/tree-ssa-forwprop.c 2013-02-25 16:31:31.000000000 +0100
++++ gcc-4.8.3/gcc/tree-ssa-forwprop.c 2014-05-23 15:12:47.004949946 +0200
+@@ -688,6 +688,130 @@
+ recompute_tree_invariant_for_addr_expr (gimple_assign_rhs1 (stmt));
+ }
+
++ /* DEF_RHS contains the address of the 0th element in an array.
++ USE_STMT uses type of DEF_RHS to compute the address of an
++ arbitrary element within the array. The (variable) byte offset
++ of the element is contained in OFFSET.
++
++ We walk back through the use-def chains of OFFSET to verify that
++ it is indeed computing the offset of an element within the array
++ and extract the index corresponding to the given byte offset.
++
++ We then try to fold the entire address expression into a form
++ &array[index].
++
++ If we are successful, we replace the right hand side of USE_STMT
++ with the new address computation. */
++
++ static bool
++ forward_propagate_addr_into_variable_array_index (tree offset,
++ tree def_rhs,
++ gimple_stmt_iterator *use_stmt_gsi)
++ {
++ tree index, tunit;
++ gimple offset_def, use_stmt = gsi_stmt (*use_stmt_gsi);
++ tree new_rhs, tmp;
++
++ if (TREE_CODE (TREE_OPERAND (def_rhs, 0)) == ARRAY_REF)
++ tunit = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (def_rhs)));
++ else if (TREE_CODE (TREE_TYPE (TREE_OPERAND (def_rhs, 0))) == ARRAY_TYPE)
++ tunit = TYPE_SIZE_UNIT (TREE_TYPE (TREE_TYPE (TREE_TYPE (def_rhs))));
++ else
++ return false;
++ if (!host_integerp (tunit, 1))
++ return false;
++
++ /* Get the offset's defining statement. */
++ offset_def = SSA_NAME_DEF_STMT (offset);
++
++ /* Try to find an expression for a proper index. This is either a
++ multiplication expression by the element size or just the ssa name we came
++ along in case the element size is one. In that case, however, we do not
++ allow multiplications because they can be computing index to a higher
++ level dimension (PR 37861). */
++ if (integer_onep (tunit))
++ {
++ if (is_gimple_assign (offset_def)
++ && gimple_assign_rhs_code (offset_def) == MULT_EXPR)
++ return false;
++
++ index = offset;
++ }
++ else
++ {
++ /* The statement which defines OFFSET before type conversion
++ must be a simple GIMPLE_ASSIGN. */
++ if (!is_gimple_assign (offset_def))
++ return false;
++
++ /* The RHS of the statement which defines OFFSET must be a
++ multiplication of an object by the size of the array elements.
++ This implicitly verifies that the size of the array elements
++ is constant. */
++ if (gimple_assign_rhs_code (offset_def) == MULT_EXPR
++ && TREE_CODE (gimple_assign_rhs2 (offset_def)) == INTEGER_CST
++ && tree_int_cst_equal (gimple_assign_rhs2 (offset_def), tunit))
++ {
++ /* The first operand to the MULT_EXPR is the desired index. */
++ index = gimple_assign_rhs1 (offset_def);
++ }
++ /* If we have idx * tunit + CST * tunit re-associate that. */
++ else if ((gimple_assign_rhs_code (offset_def) == PLUS_EXPR
++ || gimple_assign_rhs_code (offset_def) == MINUS_EXPR)
++ && TREE_CODE (gimple_assign_rhs1 (offset_def)) == SSA_NAME
++ && TREE_CODE (gimple_assign_rhs2 (offset_def)) == INTEGER_CST
++ && (tmp = div_if_zero_remainder (EXACT_DIV_EXPR,
++ gimple_assign_rhs2 (offset_def),
++ tunit)) != NULL_TREE)
++ {
++ gimple offset_def2 = SSA_NAME_DEF_STMT (gimple_assign_rhs1 (offset_def));
++ if (is_gimple_assign (offset_def2)
++ && gimple_assign_rhs_code (offset_def2) == MULT_EXPR
++ && TREE_CODE (gimple_assign_rhs2 (offset_def2)) == INTEGER_CST
++ && tree_int_cst_equal (gimple_assign_rhs2 (offset_def2), tunit))
++ {
++ index = fold_build2 (gimple_assign_rhs_code (offset_def),
++ TREE_TYPE (offset),
++ gimple_assign_rhs1 (offset_def2), tmp);
++ }
++ else
++ return false;
++ }
++ else
++ return false;
++ }
++
++ /* Replace the pointer addition with array indexing. */
++ index = force_gimple_operand_gsi (use_stmt_gsi, index, true, NULL_TREE,
++ true, GSI_SAME_STMT);
++ if (TREE_CODE (TREE_OPERAND (def_rhs, 0)) == ARRAY_REF)
++ {
++ new_rhs = unshare_expr (def_rhs);
++ TREE_OPERAND (TREE_OPERAND (new_rhs, 0), 1) = index;
++ }
++ else
++ {
++ new_rhs = build4 (ARRAY_REF, TREE_TYPE (TREE_TYPE (TREE_TYPE (def_rhs))),
++ unshare_expr (TREE_OPERAND (def_rhs, 0)),
++ index, integer_zero_node, NULL_TREE);
++ new_rhs = build_fold_addr_expr (new_rhs);
++ if (!useless_type_conversion_p (TREE_TYPE (gimple_assign_lhs (use_stmt)),
++ TREE_TYPE (new_rhs)))
++ {
++ new_rhs = force_gimple_operand_gsi (use_stmt_gsi, new_rhs, true,
++ NULL_TREE, true, GSI_SAME_STMT);
++ new_rhs = fold_convert (TREE_TYPE (gimple_assign_lhs (use_stmt)),
++ new_rhs);
++ }
++ }
++ gimple_assign_set_rhs_from_tree (use_stmt_gsi, new_rhs);
++ fold_stmt (use_stmt_gsi);
++ tidy_after_forward_propagate_addr (gsi_stmt (*use_stmt_gsi));
++ return true;
++ }
++
++
++
+ /* NAME is a SSA_NAME representing DEF_RHS which is of the form
+ ADDR_EXPR <whatever>.
+
+@@ -977,6 +1101,19 @@
+ tidy_after_forward_propagate_addr (use_stmt);
+ return true;
+ }
++ /* Try to optimize &x[0] p+ OFFSET where OFFSET is defined by
++ converting a multiplication of an index by the size of the
++ array elements, then the result is converted into the proper
++ type for the arithmetic. */
++ if (TREE_CODE (rhs2) == SSA_NAME
++ && (TREE_CODE (array_ref) != ARRAY_REF
++ || integer_zerop (TREE_OPERAND (array_ref, 1)))
++ && useless_type_conversion_p (TREE_TYPE (name), TREE_TYPE (def_rhs))
++ /* Avoid problems with IVopts creating PLUS_EXPRs with a
++ different type than their operands. */
++ && useless_type_conversion_p (TREE_TYPE (lhs), TREE_TYPE (def_rhs)))
++ return forward_propagate_addr_into_variable_array_index (rhs2, def_rhs,
++ use_stmt_gsi);
+
+ return false;
+ }
diff --git a/toolchain/gcc/patches/4.8.3/musl-cross.patch b/toolchain/gcc/patches/4.8.3/musl-cross.patch
new file mode 100644
index 000000000..4150dfcdf
--- /dev/null
+++ b/toolchain/gcc/patches/4.8.3/musl-cross.patch
@@ -0,0 +1,633 @@
+diff -Nur gcc-4.8.3.orig/fixincludes/mkfixinc.sh gcc-4.8.3/fixincludes/mkfixinc.sh
+--- gcc-4.8.3.orig/fixincludes/mkfixinc.sh 2012-10-28 22:42:48.000000000 +0100
++++ gcc-4.8.3/fixincludes/mkfixinc.sh 2014-05-23 08:22:46.987415702 +0200
+@@ -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}
+diff -Nur gcc-4.8.3.orig/gcc/config/aarch64/aarch64-linux.h gcc-4.8.3/gcc/config/aarch64/aarch64-linux.h
+--- gcc-4.8.3.orig/gcc/config/aarch64/aarch64-linux.h 2013-08-13 15:22:18.000000000 +0200
++++ gcc-4.8.3/gcc/config/aarch64/aarch64-linux.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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}"
+
+diff -Nur gcc-4.8.3.orig/gcc/config/arm/linux-eabi.h gcc-4.8.3/gcc/config/arm/linux-eabi.h
+--- gcc-4.8.3.orig/gcc/config/arm/linux-eabi.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/arm/linux-eabi.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/i386/linux64.h gcc-4.8.3/gcc/config/i386/linux64.h
+--- gcc-4.8.3.orig/gcc/config/i386/linux64.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/i386/linux64.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/i386/linux.h gcc-4.8.3/gcc/config/i386/linux.h
+--- gcc-4.8.3.orig/gcc/config/i386/linux.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/i386/linux.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/linux.h gcc-4.8.3/gcc/config/linux.h
+--- gcc-4.8.3.orig/gcc/config/linux.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/linux.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/linux.opt gcc-4.8.3/gcc/config/linux.opt
+--- gcc-4.8.3.orig/gcc/config/linux.opt 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/linux.opt 2014-05-23 08:22:46.987415702 +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-4.8.3.orig/gcc/config/microblaze/linux.h gcc-4.8.3/gcc/config/microblaze/linux.h
+--- gcc-4.8.3.orig/gcc/config/microblaze/linux.h 2013-03-14 16:43:23.000000000 +0100
++++ gcc-4.8.3/gcc/config/microblaze/linux.h 2014-05-23 08:22:46.987415702 +0200
+@@ -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 }
+diff -Nur gcc-4.8.3.orig/gcc/config/mips/linux.h gcc-4.8.3/gcc/config/mips/linux.h
+--- gcc-4.8.3.orig/gcc/config/mips/linux.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/mips/linux.h 2014-05-23 08:22:48.643418636 +0200
+@@ -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"
+diff -Nur gcc-4.8.3.orig/gcc/config/rs6000/linux64.h gcc-4.8.3/gcc/config/rs6000/linux64.h
+--- gcc-4.8.3.orig/gcc/config/rs6000/linux64.h 2014-04-04 17:10:24.000000000 +0200
++++ gcc-4.8.3/gcc/config/rs6000/linux64.h 2014-05-23 08:22:48.643418636 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/rs6000/secureplt.h gcc-4.8.3/gcc/config/rs6000/secureplt.h
+--- gcc-4.8.3.orig/gcc/config/rs6000/secureplt.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/config/rs6000/secureplt.h 2014-05-23 08:22:48.643418636 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/rs6000/sysv4.h gcc-4.8.3/gcc/config/rs6000/sysv4.h
+--- gcc-4.8.3.orig/gcc/config/rs6000/sysv4.h 2014-04-04 16:50:31.000000000 +0200
++++ gcc-4.8.3/gcc/config/rs6000/sysv4.h 2014-05-23 08:22:48.643418636 +0200
+@@ -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 -Nur gcc-4.8.3.orig/gcc/config/sh/linux.h gcc-4.8.3/gcc/config/sh/linux.h
+--- gcc-4.8.3.orig/gcc/config/sh/linux.h 2013-03-14 04:01:53.000000000 +0100
++++ gcc-4.8.3/gcc/config/sh/linux.h 2014-05-23 08:22:48.643418636 +0200
+@@ -43,7 +43,14 @@
+
+ #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+
++#if TARGET_ENDIAN_DEFAULT == 0 /* 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"
+diff -Nur gcc-4.8.3.orig/gcc/config.gcc gcc-4.8.3/gcc/config.gcc
+--- gcc-4.8.3.orig/gcc/config.gcc 2014-05-06 17:29:04.000000000 +0200
++++ gcc-4.8.3/gcc/config.gcc 2014-05-23 08:22:49.895420854 +0200
+@@ -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"
+ ;;
+@@ -2135,6 +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 ${tm_file}"
+ fi
+diff -Nur gcc-4.8.3.orig/gcc/configure gcc-4.8.3/gcc/configure
+--- gcc-4.8.3.orig/gcc/configure 2014-04-28 12:05:29.000000000 +0200
++++ gcc-4.8.3/gcc/configure 2014-05-23 08:22:49.903420868 +0200
+@@ -26821,6 +26821,9 @@
+ else
+ gcc_cv_libc_provides_ssp=no
+ case "$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.
+@@ -26854,6 +26857,7 @@
+ # <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 "$LINENO" "__stack_chk_fail" "ac_cv_func___stack_chk_fail"
+@@ -26936,6 +26940,9 @@
+ gcc_cv_target_dl_iterate_phdr=no
+ fi
+ ;;
++ *-linux-musl*)
++ gcc_cv_target_dl_iterate_phdr=yes
++ ;;
+ esac
+
+ if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+diff -Nur gcc-4.8.3.orig/gcc/configure.ac gcc-4.8.3/gcc/configure.ac
+--- gcc-4.8.3.orig/gcc/configure.ac 2014-04-28 12:05:29.000000000 +0200
++++ gcc-4.8.3/gcc/configure.ac 2014-05-23 08:22:49.903420868 +0200
+@@ -4750,6 +4750,9 @@
+ gcc_cv_libc_provides_ssp,
+ [gcc_cv_libc_provides_ssp=no
+ case "$target" in
++ *-*-musl*)
++ # All versions of musl provide stack protector
++ gcc_cv_libc_provides_ssp=yes;;
+ *-*-linux* | *-*-kfreebsd*-gnu | *-*-knetbsd*-gnu)
+ [# glibc 2.4 and later provides __stack_chk_fail and
+ # either __stack_chk_guard, or TLS access to stack guard canary.
+@@ -4783,6 +4786,7 @@
+ # <http://gcc.gnu.org/ml/gcc/2008-10/msg00130.html>) and for now
+ # simply assert that glibc does provide this, which is true for all
+ # realistically usable GNU/Hurd configurations.
++ # All supported versions of musl provide it as well
+ gcc_cv_libc_provides_ssp=yes;;
+ *-*-darwin* | *-*-freebsd*)
+ AC_CHECK_FUNC(__stack_chk_fail,[gcc_cv_libc_provides_ssp=yes],
+@@ -4848,6 +4852,9 @@
+ gcc_cv_target_dl_iterate_phdr=no
+ fi
+ ;;
++ *-linux-musl*)
++ gcc_cv_target_dl_iterate_phdr=yes
++ ;;
+ esac
+ GCC_TARGET_TEMPLATE([TARGET_DL_ITERATE_PHDR])
+ if test x$gcc_cv_target_dl_iterate_phdr = xyes; then
+diff -Nur gcc-4.8.3.orig/gcc/ginclude/stddef.h gcc-4.8.3/gcc/ginclude/stddef.h
+--- gcc-4.8.3.orig/gcc/ginclude/stddef.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.3/gcc/ginclude/stddef.h 2014-05-23 08:22:49.903420868 +0200
+@@ -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 */
+diff -Nur gcc-4.8.3.orig/libgcc/unwind-dw2-fde-dip.c gcc-4.8.3/libgcc/unwind-dw2-fde-dip.c
+--- gcc-4.8.3.orig/libgcc/unwind-dw2-fde-dip.c 2013-02-04 20:06:20.000000000 +0100
++++ gcc-4.8.3/libgcc/unwind-dw2-fde-dip.c 2014-05-23 08:22:49.955420959 +0200
+@@ -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)))
+-# 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__)
++#if !defined(inhibit_libc) && defined(HAVE_LD_EH_FRAME_HDR) && defined(TARGET_DL_ITERATE_PHDR)
+ # define USE_PT_GNU_EH_FRAME
++# ifdef __OpenBSD__
++# define ElfW(type) Elf_##typ
++# elif defined(__FreeBSD__) && __FreeBSD__ >= 7
++# define ElfW __ElfN
++# endif
+ #endif
+
+ #if defined(USE_PT_GNU_EH_FRAME)
+diff -Nur gcc-4.8.3.orig/libgomp/config/posix/time.c gcc-4.8.3/libgomp/config/posix/time.c
+--- gcc-4.8.3.orig/libgomp/config/posix/time.c 2013-01-14 19:18:49.000000000 +0100
++++ gcc-4.8.3/libgomp/config/posix/time.c 2014-05-23 08:22:49.975420996 +0200
+@@ -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 -Nur gcc-4.8.3.orig/libitm/config/arm/hwcap.cc gcc-4.8.3/libitm/config/arm/hwcap.cc
+--- gcc-4.8.3.orig/libitm/config/arm/hwcap.cc 2013-02-03 18:46:11.000000000 +0100
++++ gcc-4.8.3/libitm/config/arm/hwcap.cc 2014-05-23 08:22:49.979421003 +0200
+@@ -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))
+diff -Nur gcc-4.8.3.orig/libitm/config/linux/x86/tls.h gcc-4.8.3/libitm/config/linux/x86/tls.h
+--- gcc-4.8.3.orig/libitm/config/linux/x86/tls.h 2013-02-03 18:46:11.000000000 +0100
++++ gcc-4.8.3/libitm/config/linux/x86/tls.h 2014-05-23 08:22:49.999421038 +0200
+@@ -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
+diff -Nur gcc-4.8.3.orig/libstdc++-v3/configure.host gcc-4.8.3/libstdc++-v3/configure.host
+--- gcc-4.8.3.orig/libstdc++-v3/configure.host 2013-06-19 03:18:38.000000000 +0200
++++ gcc-4.8.3/libstdc++-v3/configure.host 2014-05-23 08:22:50.015421065 +0200
+@@ -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"
+ ;;
diff --git a/toolchain/gcc/patches/4.8.3/musl-stubs.patch b/toolchain/gcc/patches/4.8.3/musl-stubs.patch
new file mode 100644
index 000000000..35050fd9c
--- /dev/null
+++ b/toolchain/gcc/patches/4.8.3/musl-stubs.patch
@@ -0,0 +1,49 @@
+diff -Nur gcc-4.8.2.orig/gcc/config/m68k/linux.h gcc-4.8.2/gcc/config/m68k/linux.h
+--- gcc-4.8.2.orig/gcc/config/m68k/linux.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.2/gcc/config/m68k/linux.h 2014-02-24 10:19:00.214399704 +0100
+@@ -72,6 +72,7 @@
+ done. */
+
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-m68k.so.1"
+
+ #undef LINK_SPEC
+ #define LINK_SPEC "-m m68kelf %{shared} \
+diff -Nur gcc-4.8.2.orig/gcc/config/mips/linux64.h gcc-4.8.2/gcc/config/mips/linux64.h
+--- gcc-4.8.2.orig/gcc/config/mips/linux64.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.2/gcc/config/mips/linux64.h 2014-02-24 10:19:47.238583895 +0100
+@@ -27,6 +27,9 @@
+ #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_LINKER32 "/lib/ld-musl-mips.so.1"
++#define MUSL_DYNAMIC_LINKERN32 "/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)
+diff -Nur gcc-4.8.2.orig/gcc/config/sparc/linux64.h gcc-4.8.2/gcc/config/sparc/linux64.h
+--- gcc-4.8.2.orig/gcc/config/sparc/linux64.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.2/gcc/config/sparc/linux64.h 2014-02-24 10:20:49.414827006 +0100
+@@ -94,6 +94,9 @@
+
+ #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
+ #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-sparc.so.1"
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-sparc.so.1"
++
+
+ #ifdef SPARC_BI_ARCH
+
+diff -Nur gcc-4.8.2.orig/gcc/config/sparc/linux.h gcc-4.8.2/gcc/config/sparc/linux.h
+--- gcc-4.8.2.orig/gcc/config/sparc/linux.h 2013-01-10 21:38:27.000000000 +0100
++++ gcc-4.8.2/gcc/config/sparc/linux.h 2014-02-24 10:21:14.342924339 +0100
+@@ -84,6 +84,7 @@
+ done. */
+
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-sparc.so.1"
+
+ #undef LINK_SPEC
+ #define LINK_SPEC "-m elf32_sparc %{shared:-shared} \
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-24 16:20:02 +0000