--- a/gcc/config.gcc +++ b/gcc/config.gcc @@ -551,7 +551,7 @@ case ${target} in esac # Common C libraries. -tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3" +tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4" # Common parts for widely ported systems. case ${target} in @@ -654,6 +654,9 @@ case ${target} in *-*-*uclibc*) tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC" ;; + *-*-*musl*) + tm_defines="$tm_defines DEFAULT_LIBC=LIBC_MUSL" + ;; *) tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC" ;; --- a/gcc/config/arm/linux-eabi.h +++ b/gcc/config/arm/linux-eabi.h @@ -77,6 +77,10 @@ %{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \ %{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}" +/* musl has no "classic" (i.e. broken) mode */ +#undef MUSL_DYNAMIC_LINKER +#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-arm.so.1" + /* At this point, bpabi.h will have clobbered LINK_SPEC. We want to use the GNU/Linux version, not the generic BPABI version. */ #undef LINK_SPEC --- a/gcc/config/i386/linux.h +++ b/gcc/config/i386/linux.h @@ -21,3 +21,4 @@ along with GCC; see the file COPYING3. #define GNU_USER_LINK_EMULATION "elf_i386" #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2" +#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-i386.so.1" --- a/gcc/config/i386/linux64.h +++ b/gcc/config/i386/linux64.h @@ -30,3 +30,7 @@ see the files COPYING3 and COPYING.RUNTI #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2" #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2" #define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2" + +#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-i386.so.1" +#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-x86_64.so.1" +#define MUSL_DYNAMIC_LINKERX32 "/lib/ld-musl-x32.so.1" --- a/gcc/config/linux.h +++ b/gcc/config/linux.h @@ -32,10 +32,12 @@ see the files COPYING3 and COPYING.RUNTI #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC) #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC) #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC) +#define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL) #else #define OPTION_GLIBC (linux_libc == LIBC_GLIBC) #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC) #define OPTION_BIONIC (linux_libc == LIBC_BIONIC) +#define OPTION_MUSL (linux_libc == LIBC_MUSL) #endif #define GNU_USER_TARGET_OS_CPP_BUILTINS() \ @@ -53,18 +55,21 @@ see the files COPYING3 and COPYING.RUNTI uClibc or Bionic is the default C library and whether -muclibc or -mglibc or -mbionic has been passed to change the default. */ -#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LD1, LD2, LD3) \ - "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:" LD1 "}}" +#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LIBC4, LD1, LD2, LD3, LD4) \ + "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:%{" LIBC4 ":" LD4 ";:" LD1 "}}}" #if DEFAULT_LIBC == LIBC_GLIBC -#define CHOOSE_DYNAMIC_LINKER(G, U, B) \ - CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", G, U, B) +#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \ + CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", "mmusl", G, U, B, M) #elif DEFAULT_LIBC == LIBC_UCLIBC -#define CHOOSE_DYNAMIC_LINKER(G, U, B) \ - CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", U, G, B) +#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \ + CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", "mmusl", U, G, B, M) #elif DEFAULT_LIBC == LIBC_BIONIC -#define CHOOSE_DYNAMIC_LINKER(G, U, B) \ - CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", B, G, U) +#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \ + CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", "mmusl", B, G, U, M) +#elif DEFAULT_LIBC == LIBC_MUSL +#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \ + CHOOSE_DYNAMIC_LINKER1 ("mmusl", "mglibc", "muclibc", "mbionic", M, G, U, B) #else #error "Unsupported DEFAULT_LIBC" #endif /* DEFAULT_LIBC */ @@ -84,16 +89,16 @@ see the files COPYING3 and COPYING.RUNTI #define GNU_USER_DYNAMIC_LINKER \ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, \ - BIONIC_DYNAMIC_LINKER) + BIONIC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER) #define GNU_USER_DYNAMIC_LINKER32 \ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, \ - BIONIC_DYNAMIC_LINKER32) + BIONIC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32) #define GNU_USER_DYNAMIC_LINKER64 \ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, \ - BIONIC_DYNAMIC_LINKER64) + BIONIC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64) #define GNU_USER_DYNAMIC_LINKERX32 \ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERX32, UCLIBC_DYNAMIC_LINKERX32, \ - BIONIC_DYNAMIC_LINKERX32) + BIONIC_DYNAMIC_LINKERX32, MUSL_DYNAMIC_LINKERX32) /* Determine whether the entire c99 runtime is present in the runtime library. */ --- a/gcc/config/linux.opt +++ b/gcc/config/linux.opt @@ -30,3 +30,7 @@ Use GNU C library muclibc Target Report RejectNegative Var(linux_libc,LIBC_UCLIBC) Negative(mbionic) Use uClibc C library + +mmusl +Target Report RejectNegative Var(linux_libc,LIBC_MUSL) Negative(mglibc) +Use musl C library --- a/gcc/config/mips/linux.h +++ b/gcc/config/mips/linux.h @@ -18,3 +18,5 @@ along with GCC; see the file COPYING3. . */ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1" + +#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips.so.1" --- a/gcc/config/rs6000/linux64.h +++ b/gcc/config/rs6000/linux64.h @@ -354,17 +354,21 @@ extern int dot_symbols; #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld64.so.1" #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0" #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0" +#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-powerpc.so.1" +#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-powerpc64.so.1" #if DEFAULT_LIBC == LIBC_UCLIBC -#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}" +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}" #elif DEFAULT_LIBC == LIBC_GLIBC -#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}" +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}" +#elif DEFAULT_LIBC == LIBC_MUSL +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}" #else #error "Unsupported DEFAULT_LIBC" #endif #define GNU_USER_DYNAMIC_LINKER32 \ - CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32) + CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32) #define GNU_USER_DYNAMIC_LINKER64 \ - CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64) + CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64) #undef DEFAULT_ASM_ENDIAN #if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN) --- a/gcc/config/rs6000/sysv4.h +++ b/gcc/config/rs6000/sysv4.h @@ -778,15 +778,18 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEF #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1" #define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0" +#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-powerpc.so.1" #if DEFAULT_LIBC == LIBC_UCLIBC -#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}" +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}" +#elif DEFAULT_LIBC == LIBC_MUSL +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}" #elif !defined (DEFAULT_LIBC) || DEFAULT_LIBC == LIBC_GLIBC -#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}" +#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}" #else #error "Unsupported DEFAULT_LIBC" #endif #define GNU_USER_DYNAMIC_LINKER \ - CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER) + CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER) #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \ %{rdynamic:-export-dynamic} \ --- a/gcc/ginclude/stddef.h +++ b/gcc/ginclude/stddef.h @@ -181,6 +181,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t; #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 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t; #define ___int_size_t_h #define _GCC_SIZE_T #define _SIZET_ +#define __DEFINED_size_t /* musl */ #if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \ || defined(__FreeBSD_kernel__) /* __size_t is a typedef on FreeBSD 5, must not trash it. */ @@ -214,6 +216,7 @@ typedef __SIZE_TYPE__ size_t; typedef long ssize_t; #endif /* __BEOS__ */ #endif /* !(defined (__GNUG__) && defined (size_t)) */ +#endif /* __DEFINED_size_t */ #endif /* __size_t */ #endif /* _SIZET_ */ #endif /* _GCC_SIZE_T */ --- a/libgomp/config/posix/time.c +++ b/libgomp/config/posix/time.c @@ -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 #if TIME_WITH_SYS_TIME --- a/libitm/config/arm/hwcap.cc +++ b/libitm/config/arm/hwcap.cc @@ -40,7 +40,11 @@ int GTM_hwcap HIDDEN = 0 #ifdef __linux__ #include +#ifdef __GLIBC__ #include +#else +#include +#endif #include static void __attribute__((constructor)) --- a/libitm/config/linux/x86/tls.h +++ b/libitm/config/linux/x86/tls.h @@ -25,16 +25,19 @@ #ifndef LIBITM_X86_TLS_H #define LIBITM_X86_TLS_H 1 -#if defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 10) +#if defined(__GLIBC_PREREQ) +#if __GLIBC_PREREQ(2, 10) /* Use slots in the TCB head rather than __thread lookups. GLIBC has reserved words 10 through 13 for TM. */ #define HAVE_ARCH_GTM_THREAD 1 #define HAVE_ARCH_GTM_THREAD_DISP 1 #endif +#endif #include "config/generic/tls.h" -#if defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 10) +#if defined(__GLIBC_PREREQ) +#if __GLIBC_PREREQ(2, 10) namespace GTM HIDDEN { #ifdef __x86_64__ @@ -101,5 +104,6 @@ static inline void set_abi_disp(struct a } // namespace GTM #endif /* >= GLIBC 2.10 */ +#endif #endif // LIBITM_X86_TLS_H --- a/libstdc++-v3/configure.host +++ b/libstdc++-v3/configure.host @@ -264,6 +264,13 @@ case "${host_os}" in os_include_dir="os/bsd/freebsd" ;; gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu) + # check for musl by target + case "${host_os}" in + *-musl*) + os_include_dir="os/generic" + ;; + *) + if [ "$uclibc" = "yes" ]; then os_include_dir="os/uclibc" elif [ "$bionic" = "yes" ]; then @@ -272,6 +279,9 @@ case "${host_os}" in os_include_dir="os/gnu-linux" fi ;; + + esac + ;; hpux*) os_include_dir="os/hpux" ;; --- a/gcc/config/mips/linux64.h +++ b/gcc/config/mips/linux64.h @@ -27,6 +27,9 @@ along with GCC; see the file COPYING3. #define GLIBC_DYNAMIC_LINKERN32 "/lib32/ld.so.1" #define UCLIBC_DYNAMIC_LINKERN32 "/lib32/ld-uClibc.so.0" #define BIONIC_DYNAMIC_LINKERN32 "/system/bin/linker32" +#define MUSL_DYNAMIC_LINKERN32 "/lib/ld-musl-mips.so.1" +#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-mips.so.1" +#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-mips.so.1" #define GNU_USER_DYNAMIC_LINKERN32 \ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERN32, UCLIBC_DYNAMIC_LINKERN32, \ - BIONIC_DYNAMIC_LINKERN32) + BIONIC_DYNAMIC_LINKERN32, MUSL_DYNAMIC_LINKERN32) --- a/gcc/config/sparc/linux64.h +++ b/gcc/config/sparc/linux64.h @@ -95,6 +95,9 @@ along with GCC; see the file COPYING3. #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 #undef SUBTARGET_EXTRA_SPECS