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This change is based on a patch by Timo TerÃs: http://patchwork.ozlabs.org/patch/257187/ This patch, as the original, is an RFC. Currently a minimal armel- is the only target tested. sh[34][a]- support is in crosstool-ng, but not in the 020-musl-support.patch. Please let me know if you have any comments, feedback, and/or suggestions. Signed-off-by: Bryan Hundven <bryanhundven@gmail.com> --- config/libc.in | 11 + config/libc/musl.in | 47 +++ config/libc/musl.in.2 | 2 + patches/gcc/4.8.2/020-musl-support.patch | 381 ++++++++++++++++++++ patches/gcc/4.9.0/020-musl-support.patch | 385 +++++++++++++++++++++ patches/musl/1.0.3/001-fix_linker_regression.patch | 64 ++++ .../1.0.3/002-fix_mips_linker_regression.patch | 88 +++++ patches/musl/1.1.3/001-fix_linker_regression.patch | 64 ++++ .../1.1.3/002-fix_mips_linker_regression.patch | 88 +++++ .../arm-unknown-linux-muslgnueabi/crosstool.config | 10 + samples/arm-unknown-linux-muslgnueabi/reported.by | 3 + scripts/build/arch/arm.sh | 1 + scripts/build/libc/musl.sh | 111 ++++++ scripts/functions | 1 + 14 files changed, 1256 insertions(+) create mode 100644 config/libc/musl.in create mode 100644 config/libc/musl.in.2 create mode 100644 patches/gcc/4.8.2/020-musl-support.patch create mode 100644 patches/gcc/4.9.0/020-musl-support.patch create mode 100644 patches/musl/1.0.3/001-fix_linker_regression.patch create mode 100644 patches/musl/1.0.3/002-fix_mips_linker_regression.patch create mode 100644 patches/musl/1.1.3/001-fix_linker_regression.patch create mode 100644 patches/musl/1.1.3/002-fix_mips_linker_regression.patch create mode 100644 samples/arm-unknown-linux-muslgnueabi/crosstool.config create mode 100644 samples/arm-unknown-linux-muslgnueabi/reported.by create mode 100644 scripts/build/libc/musl.sh diff --git a/config/libc.in b/config/libc.in index 03f5db2..ff9ce9e 100644 --- a/config/libc.in +++ b/config/libc.in @@ -28,6 +28,10 @@ config LIBC_SUPPORT_NPTL bool select LIBC_SUPPORT_THREADS_ANY +config LIBC_SUPPORT_MUSL + bool + select LIBC_SUPPORT_THREADS_ANY + config LIBC_SUPPORT_LINUXTHREADS bool select LIBC_SUPPORT_THREADS_ANY @@ -42,6 +46,7 @@ config LIBC_SUPPORT_THREADS_NONE config THREADS string default "nptl" if THREADS_NPTL + default "musl" if THREADS_MUSL default "linuxthreads" if THREADS_LINUXTHREADS default "win32" if THREADS_WIN32THREADS default "none" if THREADS_NONE || LIBC_none @@ -55,6 +60,7 @@ choice bool prompt "Threading implementation to use:" default THREADS_NPTL if LIBC_SUPPORT_NPTL + default THREADS_MUSL if LIBC_SUPPORT_MUSL default THREADS_LINUXTHREADS if LIBC_SUPPORT_LINUXTHREADS && ! LIBC_SUPPORT_NPTL default THREADS_WIN32 if LIBC_SUPPORT_WIN32THREADS default THREADS_NONE if ! LIBC_SUPPORT_THREADS_ANY @@ -64,6 +70,11 @@ config THREADS_NPTL prompt "nptl" depends on LIBC_SUPPORT_NPTL +config THREADS_MUSL + bool + prompt "musl" + depends on LIBC_SUPPORT_MUSL + config THREADS_LINUXTHREADS bool prompt "linuxthreads" diff --git a/config/libc/musl.in b/config/libc/musl.in new file mode 100644 index 0000000..69f465c --- /dev/null +++ b/config/libc/musl.in @@ -0,0 +1,47 @@ +# musl options + +## depends on ! WINDOWS && ! BARE_METAL +## +## select LIBC_SUPPORT_MUSL +## select CC_CORE_PASSES_NEEDED +## +## help Musl is a new standard library to power a new generation of Linux-based +## help devices. musl is lightweight, fast, simple, free, and strives to be +## help correct in the sense of standards-conformance and safety. + +choice + bool + prompt "musl version" +# Don't remove next line +# CT_INSERT_VERSION_BELOW + +config LIBC_MUSL_V_1_1_3 + bool + prompt "1.1.3 (Mainline)" + select LIBC_MUSL_DEFAULTS + depends on EXPERIMENTAL + +config LIBC_MUSL_V_1_0_3 + bool + prompt "1.0.3 (Stable)" + select LIBC_MUSL_DEFAULTS + +config LIBC_MUSL_V_CUSTOM + bool + prompt "Custom musl" + select LIBC_MUSL_DEFAULTS + depends on EXPERIMENTAL + +endchoice + +config LIBC_MUSL_DEFAULTS + bool + select LIBC_SUPPORT_MUSL + +config LIBC_VERSION + string +# Don't remove next line +# CT_INSERT_VERSION_STRING_BELOW + default "1.1.3" if LIBC_MUSL_V_1_1_3 + default "1.0.3" if LIBC_MUSL_V_1_0_3 + default "custom" if LIBC_MUSL_V_CUSTOM diff --git a/config/libc/musl.in.2 b/config/libc/musl.in.2 new file mode 100644 index 0000000..6fd954c --- /dev/null +++ b/config/libc/musl.in.2 @@ -0,0 +1,2 @@ +# musl second-part options\n + diff --git a/patches/gcc/4.8.2/020-musl-support.patch b/patches/gcc/4.8.2/020-musl-support.patch new file mode 100644 index 0000000..a4e4987 --- /dev/null +++ b/patches/gcc/4.8.2/020-musl-support.patch @@ -0,0 +1,381 @@ +diff --git a/gcc/config.gcc b/gcc/config.gcc +index 92d57dd..9ed4828 100644 +--- a/gcc/config.gcc ++++ b/gcc/config.gcc +@@ -550,7 +550,7 @@ 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 +@@ -653,6 +653,9 @@ 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" + ;; +@@ -2114,6 +2117,10 @@ powerpc*-*-linux*) + 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 --git a/gcc/config/arm/linux-eabi.h b/gcc/config/arm/linux-eabi.h +index 4a425c8..6fa88b9 100644 +--- 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 +diff --git a/gcc/config/i386/linux.h b/gcc/config/i386/linux.h +index 3c95ee0..93725fa 100644 +--- a/gcc/config/i386/linux.h ++++ b/gcc/config/i386/linux.h +@@ -21,3 +21,4 @@ along with GCC; see the file COPYING3. If not see + + #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 --git a/gcc/config/i386/linux64.h b/gcc/config/i386/linux64.h +index b793e08..d6e2bf9 100644 +--- a/gcc/config/i386/linux64.h ++++ b/gcc/config/i386/linux64.h +@@ -30,3 +30,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + #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 --git a/gcc/config/linux.h b/gcc/config/linux.h +index 2be1079..dc88df9 100644 +--- a/gcc/config/linux.h ++++ b/gcc/config/linux.h +@@ -32,10 +32,12 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + #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.RUNTIME respectively. If not, see + 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.RUNTIME respectively. If not, see + + #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. */ +diff --git a/gcc/config/linux.opt b/gcc/config/linux.opt +index 27991be..24f9f68 100644 +--- 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 +diff --git a/gcc/config/mips/linux.h b/gcc/config/mips/linux.h +index 9b4c68d..47994b7 100644 +--- a/gcc/config/mips/linux.h ++++ b/gcc/config/mips/linux.h +@@ -18,3 +18,5 @@ along with GCC; see the file COPYING3. If not see + <http://www.gnu.org/licenses/>. */ + + #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1" ++ ++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips.so.1" +diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h +index 3f28058..35c691b 100644 +--- 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) +diff --git a/gcc/config/rs6000/secureplt.h b/gcc/config/rs6000/secureplt.h +index 39ffb88..5d3817f 100644 +--- a/gcc/config/rs6000/secureplt.h ++++ b/gcc/config/rs6000/secureplt.h +@@ -18,3 +18,4 @@ along with GCC; see the file COPYING3. If not see + <http://www.gnu.org/licenses/>. */ + + #define CC1_SECURE_PLT_DEFAULT_SPEC "-msecure-plt" ++#define LINK_SECURE_PLT_DEFAULT_SPEC "--secure-plt" +diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h +index 0cc8ffb..766d1d9 100644 +--- a/gcc/config/rs6000/sysv4.h ++++ b/gcc/config/rs6000/sysv4.h +@@ -550,6 +550,9 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN) + #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 and set correct endian mode. */ + #define CC1_SPEC "%{G*} %(cc1_cpu)" \ +@@ -566,6 +569,7 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN) + %{msdata: -msdata=default} \ + %{mno-sdata: -msdata=none} \ + %{!mbss-plt: %{!msecure-plt: %(cc1_secure_plt_default)}} \ ++%{!mbss-plt: %{!msecure-plt: %(link_secure_plt_default)}} \ + %{profile: -p}" + + /* Default starting address if specified. */ +@@ -778,15 +782,18 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN) + + #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} \ +@@ -912,6 +919,7 @@ ncrtn.o%s" + { "cc1_endian_little", CC1_ENDIAN_LITTLE_SPEC }, \ + { "cc1_endian_default", CC1_ENDIAN_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 --git a/gcc/ginclude/stddef.h b/gcc/ginclude/stddef.h +index b04dd65..9a4d58b 100644 +--- 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 */ +diff --git a/libgcc/config/rs6000/linux-unwind.h b/libgcc/config/rs6000/linux-unwind.h +index c9273c4..6118a95 100644 +--- a/libgcc/config/rs6000/linux-unwind.h ++++ b/libgcc/config/rs6000/linux-unwind.h +@@ -258,6 +258,7 @@ ppc_fallback_frame_state (struct _Unwind_Context *context, + + return _URC_NO_REASON; + } ++#endif + + #define MD_FROB_UPDATE_CONTEXT frob_update_context + +diff --git a/libgomp/config/posix/time.c b/libgomp/config/posix/time.c +index 37898ec..67cf25f 100644 +--- 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 <unistd.h> + #if TIME_WITH_SYS_TIME +diff --git a/libitm/config/arm/hwcap.cc b/libitm/config/arm/hwcap.cc +index d064917..e5278c9 100644 +--- a/libitm/config/arm/hwcap.cc ++++ b/libitm/config/arm/hwcap.cc +@@ -40,7 +40,11 @@ int GTM_hwcap HIDDEN = 0 + + #ifdef __linux__ + #include <unistd.h> ++#ifdef __GLIBC__ + #include <sys/fcntl.h> ++#else ++#include <fcntl.h> ++#endif + #include <elf.h> + + static void __attribute__((constructor)) +diff --git a/libitm/config/linux/x86/tls.h b/libitm/config/linux/x86/tls.h +index 4e0115f..ba03047 100644 +--- 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 abi_dispatch *x) + + } // namespace GTM + #endif /* >= GLIBC 2.10 */ ++#endif + + #endif // LIBITM_X86_TLS_H +diff --git a/libstdc++-v3/configure.host b/libstdc++-v3/configure.host +index 23b3f52..75e9a55 100644 +--- 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" + ;; diff --git a/patches/gcc/4.9.0/020-musl-support.patch b/patches/gcc/4.9.0/020-musl-support.patch new file mode 100644 index 0000000..a93ff73 --- /dev/null +++ b/patches/gcc/4.9.0/020-musl-support.patch @@ -0,0 +1,385 @@ +diff --git a/gcc/config.gcc b/gcc/config.gcc +index 3c55c88..e526ef3 100644 +--- a/gcc/config.gcc ++++ b/gcc/config.gcc +@@ -594,7 +594,7 @@ 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" + + # 32-bit x86 processors supported by --with-arch=. Each processor + # MUST be separated by exactly one space. +@@ -719,6 +719,9 @@ 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" + ;; +@@ -2323,6 +2326,10 @@ powerpc*-*-linux*) + 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 --git a/gcc/config/arm/linux-eabi.h b/gcc/config/arm/linux-eabi.h +index f1f3448..8c297b9 100644 +--- 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 +diff --git a/gcc/config/i386/linux.h b/gcc/config/i386/linux.h +index 1fb1e03..22144f6 100644 +--- a/gcc/config/i386/linux.h ++++ b/gcc/config/i386/linux.h +@@ -21,3 +21,4 @@ along with GCC; see the file COPYING3. If not see + + #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 --git a/gcc/config/i386/linux64.h b/gcc/config/i386/linux64.h +index a90171e..8d4bf5f 100644 +--- a/gcc/config/i386/linux64.h ++++ b/gcc/config/i386/linux64.h +@@ -30,3 +30,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + #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 --git a/gcc/config/linux.h b/gcc/config/linux.h +index d38ef81..1a1a684 100644 +--- a/gcc/config/linux.h ++++ b/gcc/config/linux.h +@@ -32,10 +32,12 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + #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.RUNTIME respectively. If not, see + 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.RUNTIME respectively. If not, see + + #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) + + /* Whether we have Bionic libc runtime */ + #undef TARGET_HAS_BIONIC +diff --git a/gcc/config/linux.opt b/gcc/config/linux.opt +index 435bd87..0c94f14 100644 +--- 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 +diff --git a/gcc/config/mips/linux.h b/gcc/config/mips/linux.h +index e539422..7141ad9 100644 +--- a/gcc/config/mips/linux.h ++++ b/gcc/config/mips/linux.h +@@ -20,6 +20,9 @@ along with GCC; see the file COPYING3. If not see + #define GLIBC_DYNAMIC_LINKER \ + "%{mnan=2008:/lib/ld-linux-mipsn8.so.1;:/lib/ld.so.1}" + ++#define MUSL_DYNAMIC_LINKER \ ++ "/lib/ld-musl-mips.so.1" ++ + #undef UCLIBC_DYNAMIC_LINKER + #define UCLIBC_DYNAMIC_LINKER \ + "%{mnan=2008:/lib/ld-uClibc-mipsn8.so.0;:/lib/ld-uClibc.so.0}" +diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h +index dbc9a52..c66f4d0 100644 +--- a/gcc/config/rs6000/linux64.h ++++ b/gcc/config/rs6000/linux64.h +@@ -375,17 +375,21 @@ extern int dot_symbols; + #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 --git a/gcc/config/rs6000/secureplt.h b/gcc/config/rs6000/secureplt.h +index 01959e3..ea3f62f 100644 +--- a/gcc/config/rs6000/secureplt.h ++++ b/gcc/config/rs6000/secureplt.h +@@ -18,3 +18,4 @@ along with GCC; see the file COPYING3. If not see + <http://www.gnu.org/licenses/>. */ + + #define CC1_SECURE_PLT_DEFAULT_SPEC "-msecure-plt" ++#define LINK_SECURE_PLT_DEFAULT_SPEC "--secure-plt" +diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h +index d04e6e4..43ced03 100644 +--- a/gcc/config/rs6000/sysv4.h ++++ b/gcc/config/rs6000/sysv4.h +@@ -537,6 +537,9 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN) + #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)" \ +@@ -551,6 +554,7 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN) + %{msdata: -msdata=default} \ + %{mno-sdata: -msdata=none} \ + %{!mbss-plt: %{!msecure-plt: %(cc1_secure_plt_default)}} \ ++%{!mbss-plt: %{!msecure-plt: %(link_secure_plt_default)}} \ + %{profile: -p}" + + /* Default starting address if specified. */ +@@ -763,15 +767,18 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN) + + #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 @@ ncrtn.o%s" + { "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 --git a/gcc/ginclude/stddef.h b/gcc/ginclude/stddef.h +index cfa8df3..5212a27 100644 +--- 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 */ +diff --git a/libgcc/config/rs6000/linux-unwind.h b/libgcc/config/rs6000/linux-unwind.h +index c5b006e..0eadc7a 100644 +--- a/libgcc/config/rs6000/linux-unwind.h ++++ b/libgcc/config/rs6000/linux-unwind.h +@@ -282,6 +282,7 @@ ppc_fallback_frame_state (struct _Unwind_Context *context, + + return _URC_NO_REASON; + } ++#endif + + #define MD_FROB_UPDATE_CONTEXT frob_update_context + +diff --git a/libgomp/config/posix/time.c b/libgomp/config/posix/time.c +index 6000aa3..be926df 100644 +--- 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 <unistd.h> + #if TIME_WITH_SYS_TIME +diff --git a/libitm/config/arm/hwcap.cc b/libitm/config/arm/hwcap.cc +index 11ef0f6..07a9e41 100644 +--- a/libitm/config/arm/hwcap.cc ++++ b/libitm/config/arm/hwcap.cc +@@ -40,7 +40,11 @@ int GTM_hwcap HIDDEN = 0 + + #ifdef __linux__ + #include <unistd.h> ++#ifdef __GLIBC__ + #include <sys/fcntl.h> ++#else ++#include <fcntl.h> ++#endif + #include <elf.h> + + static void __attribute__((constructor)) +diff --git a/libitm/config/linux/x86/tls.h b/libitm/config/linux/x86/tls.h +index 760e6e9..0407883 100644 +--- 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 abi_dispatch *x) + + } // namespace GTM + #endif /* >= GLIBC 2.10 */ ++#endif + + #endif // LIBITM_X86_TLS_H +diff --git a/libstdc++-v3/configure.host b/libstdc++-v3/configure.host +index c168454..0e6aee5 100644 +--- 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" + ;; diff --git a/patches/musl/1.0.3/001-fix_linker_regression.patch b/patches/musl/1.0.3/001-fix_linker_regression.patch new file mode 100644 index 0000000..801cb00 --- /dev/null +++ b/patches/musl/1.0.3/001-fix_linker_regression.patch @@ -0,0 +1,64 @@ +From 9a4ad02214a859e93d2c980e4535378a6a74e3a6 Mon Sep 17 00:00:00 2001 +From: Rich Felker <dalias@aerifal.cx> +Date: Mon, 30 Jun 2014 01:52:54 +0000 +Subject: fix regression in dynamic linker error reporting + +due to a mistake when refactoring the error printing for the dynamic +linker (commit 7c73cacd09a51a87484db5689864743e4984a84d), all messages +were suppressed and replaced by blank lines. +--- +diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c +index bc4f2f6..a08300d 100644 +--- a/src/ldso/dynlink.c ++++ b/src/ldso/dynlink.c +@@ -290,8 +290,7 @@ static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stri + if (!astype) continue; + type = remap_rel(astype); + if (!type) { +- error(errbuf, sizeof errbuf, +- "Error relocating %s: unsupported relocation type %d", ++ error("Error relocating %s: unsupported relocation type %d", + dso->name, astype); + continue; + } +@@ -304,8 +303,7 @@ static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stri + def = find_sym(ctx, name, type==REL_PLT); + if (!def.sym && (sym->st_shndx != SHN_UNDEF + || sym->st_info>>4 != STB_WEAK)) { +- error(errbuf, sizeof errbuf, +- "Error relocating %s: %s: symbol not found", ++ error("Error relocating %s: %s: symbol not found", + dso->name, name); + continue; + } +@@ -366,7 +364,7 @@ static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stri + if (stride<3) addend = reloc_addr[1]; + if (runtime && def.dso->tls_id >= static_tls_cnt) { + struct td_index *new = malloc(sizeof *new); +- if (!new) error(errbuf, sizeof errbuf, ++ if (!new) error( + "Error relocating %s: cannot allocate TLSDESC for %s", + dso->name, sym ? name : "(local)" ); + new->next = dso->td_index; +@@ -839,8 +837,7 @@ static void load_deps(struct dso *p) + if (p->dynv[i] != DT_NEEDED) continue; + dep = load_library(p->strings + p->dynv[i+1], p); + if (!dep) { +- error(errbuf, sizeof errbuf, +- "Error loading shared library %s: %m (needed by %s)", ++ error("Error loading shared library %s: %m (needed by %s)", + p->strings + p->dynv[i+1], p->name); + continue; + } +@@ -890,8 +887,7 @@ static void reloc_all(struct dso *p) + + if (p->relro_start != p->relro_end && + mprotect(p->base+p->relro_start, p->relro_end-p->relro_start, PROT_READ) < 0) { +- error(errbuf, sizeof errbuf, +- "Error relocating %s: RELRO protection failed: %m", ++ error("Error relocating %s: RELRO protection failed: %m", + p->name); + } + +-- +cgit v0.9.0.3-65-g4555 diff --git a/patches/musl/1.0.3/002-fix_mips_linker_regression.patch b/patches/musl/1.0.3/002-fix_mips_linker_regression.patch new file mode 100644 index 0000000..4891b4f --- /dev/null +++ b/patches/musl/1.0.3/002-fix_mips_linker_regression.patch @@ -0,0 +1,88 @@ +From 2d8cc92a7cb4a3256ed07d86843388ffd8a882b1 Mon Sep 17 00:00:00 2001 +From: Rich Felker <dalias@aerifal.cx> +Date: Mon, 30 Jun 2014 05:18:14 +0000 +Subject: fix regression in mips dynamic linker + +this issue caused the address of functions in shared libraries to +resolve to their PLT thunks in the main program rather than their +correct addresses. it was observed causing crashes, though the +mechanism of the crash was not thoroughly investigated. since the +issue is very subtle, it calls for some explanation: + +on all well-behaved archs, GOT entries that belong to the PLT use a +special relocation type, typically called JMP_SLOT, so that the +dynamic linker can avoid having the jump destinations for the PLT +resolve to PLT thunks themselves (they also provide a definition for +the symbol, which must be used whenever the address of the function is +taken so that all DSOs see the same address). + +however, the traditional mips PIC ABI lacked such a JMP_SLOT +relocation type, presumably because, due to the way PIC works, the +address of the PLT thunk was never needed and could always be ignored. + +prior to commit adf94c19666e687a728bbf398f9a88ea4ea19996, the mips +version of reloc.h contained a hack that caused all symbol lookups to +be treated like JMP_SLOT, inhibiting undefined symbols from ever being +used to resolve symbolic relocations. this hack goes all the way back +to commit babf820180368f00742ec65b2050a82380d7c542, when the mips +dynamic linker was first made usable. + +during the recent refactoring to eliminate arch-specific relocation +processing (commit adf94c19666e687a728bbf398f9a88ea4ea19996), this +hack was overlooked and no equivalent functionality was provided in +the new code. + +fixing the problem is not as simple as adding back an equivalent hack, +since there is now also a "non-PIC ABI" that can be used for the main +executable, which actually does use a PLT. the closest thing to +official documentation I could find for this ABI is nonpic.txt, +attached to Message-ID: 20080701202236.GA1534@caradoc.them.org, which +can be found in the gcc mailing list archives and elsewhere. per this +document, undefined symbols corresponding to PLT thunks have the +STO_MIPS_PLT bit set in the symbol's st_other field. thus, I have +added an arch-specific rule for mips, applied at the find_sym level +rather than the relocation level, to reject undefined symbols with the +STO_MIPS_PLT bit clear. + +the previous hack of treating all mips relocations as JMP_SLOT-like, +rather than rejecting the unwanted symbols in find_sym, probably also +caused dlsym to wrongly return PLT thunks in place of the correct +address of a function under at least some conditions. this should now +be fixed, at least for global-scope symbol lookups. +--- +diff --git a/arch/mips/reloc.h b/arch/mips/reloc.h +index 91fa097..4b81d32 100644 +--- a/arch/mips/reloc.h ++++ b/arch/mips/reloc.h +@@ -86,3 +86,4 @@ static void do_arch_relocs(struct dso *this, struct dso *head) + + #define NEED_ARCH_RELOCS 1 + #define DYNAMIC_IS_RO 1 ++#define ARCH_SYM_REJECT_UND(s) (!((s)->st_other & STO_MIPS_PLT)) +diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c +index a08300d..55124ff 100644 +--- a/src/ldso/dynlink.c ++++ b/src/ldso/dynlink.c +@@ -233,6 +233,10 @@ static Sym *gnu_lookup(const char *s, uint32_t h1, struct dso *dso) + #define OK_TYPES (1<<STT_NOTYPE | 1<<STT_OBJECT | 1<<STT_FUNC | 1<<STT_COMMON | 1<<STT_TLS) + #define OK_BINDS (1<<STB_GLOBAL | 1<<STB_WEAK | 1<<STB_GNU_UNIQUE) + ++#ifndef ARCH_SYM_REJECT_UND ++#define ARCH_SYM_REJECT_UND(s) 0 ++#endif ++ + static struct symdef find_sym(struct dso *dso, const char *s, int need_def) + { + uint32_t h = 0, gh = 0; +@@ -249,7 +253,8 @@ static struct symdef find_sym(struct dso *dso, const char *s, int need_def) + } + if (!sym) continue; + if (!sym->st_shndx) +- if (need_def || (sym->st_info&0xf) == STT_TLS) ++ if (need_def || (sym->st_info&0xf) == STT_TLS ++ || ARCH_SYM_REJECT_UND(sym)) + continue; + if (!sym->st_value) + if ((sym->st_info&0xf) != STT_TLS) +-- +cgit v0.9.0.3-65-g4555 diff --git a/patches/musl/1.1.3/001-fix_linker_regression.patch b/patches/musl/1.1.3/001-fix_linker_regression.patch new file mode 100644 index 0000000..801cb00 --- /dev/null +++ b/patches/musl/1.1.3/001-fix_linker_regression.patch @@ -0,0 +1,64 @@ +From 9a4ad02214a859e93d2c980e4535378a6a74e3a6 Mon Sep 17 00:00:00 2001 +From: Rich Felker <dalias@aerifal.cx> +Date: Mon, 30 Jun 2014 01:52:54 +0000 +Subject: fix regression in dynamic linker error reporting + +due to a mistake when refactoring the error printing for the dynamic +linker (commit 7c73cacd09a51a87484db5689864743e4984a84d), all messages +were suppressed and replaced by blank lines. +--- +diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c +index bc4f2f6..a08300d 100644 +--- a/src/ldso/dynlink.c ++++ b/src/ldso/dynlink.c +@@ -290,8 +290,7 @@ static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stri + if (!astype) continue; + type = remap_rel(astype); + if (!type) { +- error(errbuf, sizeof errbuf, +- "Error relocating %s: unsupported relocation type %d", ++ error("Error relocating %s: unsupported relocation type %d", + dso->name, astype); + continue; + } +@@ -304,8 +303,7 @@ static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stri + def = find_sym(ctx, name, type==REL_PLT); + if (!def.sym && (sym->st_shndx != SHN_UNDEF + || sym->st_info>>4 != STB_WEAK)) { +- error(errbuf, sizeof errbuf, +- "Error relocating %s: %s: symbol not found", ++ error("Error relocating %s: %s: symbol not found", + dso->name, name); + continue; + } +@@ -366,7 +364,7 @@ static void do_relocs(struct dso *dso, size_t *rel, size_t rel_size, size_t stri + if (stride<3) addend = reloc_addr[1]; + if (runtime && def.dso->tls_id >= static_tls_cnt) { + struct td_index *new = malloc(sizeof *new); +- if (!new) error(errbuf, sizeof errbuf, ++ if (!new) error( + "Error relocating %s: cannot allocate TLSDESC for %s", + dso->name, sym ? name : "(local)" ); + new->next = dso->td_index; +@@ -839,8 +837,7 @@ static void load_deps(struct dso *p) + if (p->dynv[i] != DT_NEEDED) continue; + dep = load_library(p->strings + p->dynv[i+1], p); + if (!dep) { +- error(errbuf, sizeof errbuf, +- "Error loading shared library %s: %m (needed by %s)", ++ error("Error loading shared library %s: %m (needed by %s)", + p->strings + p->dynv[i+1], p->name); + continue; + } +@@ -890,8 +887,7 @@ static void reloc_all(struct dso *p) + + if (p->relro_start != p->relro_end && + mprotect(p->base+p->relro_start, p->relro_end-p->relro_start, PROT_READ) < 0) { +- error(errbuf, sizeof errbuf, +- "Error relocating %s: RELRO protection failed: %m", ++ error("Error relocating %s: RELRO protection failed: %m", + p->name); + } + +-- +cgit v0.9.0.3-65-g4555 diff --git a/patches/musl/1.1.3/002-fix_mips_linker_regression.patch b/patches/musl/1.1.3/002-fix_mips_linker_regression.patch new file mode 100644 index 0000000..4891b4f --- /dev/null +++ b/patches/musl/1.1.3/002-fix_mips_linker_regression.patch @@ -0,0 +1,88 @@ +From 2d8cc92a7cb4a3256ed07d86843388ffd8a882b1 Mon Sep 17 00:00:00 2001 +From: Rich Felker <dalias@aerifal.cx> +Date: Mon, 30 Jun 2014 05:18:14 +0000 +Subject: fix regression in mips dynamic linker + +this issue caused the address of functions in shared libraries to +resolve to their PLT thunks in the main program rather than their +correct addresses. it was observed causing crashes, though the +mechanism of the crash was not thoroughly investigated. since the +issue is very subtle, it calls for some explanation: + +on all well-behaved archs, GOT entries that belong to the PLT use a +special relocation type, typically called JMP_SLOT, so that the +dynamic linker can avoid having the jump destinations for the PLT +resolve to PLT thunks themselves (they also provide a definition for +the symbol, which must be used whenever the address of the function is +taken so that all DSOs see the same address). + +however, the traditional mips PIC ABI lacked such a JMP_SLOT +relocation type, presumably because, due to the way PIC works, the +address of the PLT thunk was never needed and could always be ignored. + +prior to commit adf94c19666e687a728bbf398f9a88ea4ea19996, the mips +version of reloc.h contained a hack that caused all symbol lookups to +be treated like JMP_SLOT, inhibiting undefined symbols from ever being +used to resolve symbolic relocations. this hack goes all the way back +to commit babf820180368f00742ec65b2050a82380d7c542, when the mips +dynamic linker was first made usable. + +during the recent refactoring to eliminate arch-specific relocation +processing (commit adf94c19666e687a728bbf398f9a88ea4ea19996), this +hack was overlooked and no equivalent functionality was provided in +the new code. + +fixing the problem is not as simple as adding back an equivalent hack, +since there is now also a "non-PIC ABI" that can be used for the main +executable, which actually does use a PLT. the closest thing to +official documentation I could find for this ABI is nonpic.txt, +attached to Message-ID: 20080701202236.GA1534@caradoc.them.org, which +can be found in the gcc mailing list archives and elsewhere. per this +document, undefined symbols corresponding to PLT thunks have the +STO_MIPS_PLT bit set in the symbol's st_other field. thus, I have +added an arch-specific rule for mips, applied at the find_sym level +rather than the relocation level, to reject undefined symbols with the +STO_MIPS_PLT bit clear. + +the previous hack of treating all mips relocations as JMP_SLOT-like, +rather than rejecting the unwanted symbols in find_sym, probably also +caused dlsym to wrongly return PLT thunks in place of the correct +address of a function under at least some conditions. this should now +be fixed, at least for global-scope symbol lookups. +--- +diff --git a/arch/mips/reloc.h b/arch/mips/reloc.h +index 91fa097..4b81d32 100644 +--- a/arch/mips/reloc.h ++++ b/arch/mips/reloc.h +@@ -86,3 +86,4 @@ static void do_arch_relocs(struct dso *this, struct dso *head) + + #define NEED_ARCH_RELOCS 1 + #define DYNAMIC_IS_RO 1 ++#define ARCH_SYM_REJECT_UND(s) (!((s)->st_other & STO_MIPS_PLT)) +diff --git a/src/ldso/dynlink.c b/src/ldso/dynlink.c +index a08300d..55124ff 100644 +--- a/src/ldso/dynlink.c ++++ b/src/ldso/dynlink.c +@@ -233,6 +233,10 @@ static Sym *gnu_lookup(const char *s, uint32_t h1, struct dso *dso) + #define OK_TYPES (1<<STT_NOTYPE | 1<<STT_OBJECT | 1<<STT_FUNC | 1<<STT_COMMON | 1<<STT_TLS) + #define OK_BINDS (1<<STB_GLOBAL | 1<<STB_WEAK | 1<<STB_GNU_UNIQUE) + ++#ifndef ARCH_SYM_REJECT_UND ++#define ARCH_SYM_REJECT_UND(s) 0 ++#endif ++ + static struct symdef find_sym(struct dso *dso, const char *s, int need_def) + { + uint32_t h = 0, gh = 0; +@@ -249,7 +253,8 @@ static struct symdef find_sym(struct dso *dso, const char *s, int need_def) + } + if (!sym) continue; + if (!sym->st_shndx) +- if (need_def || (sym->st_info&0xf) == STT_TLS) ++ if (need_def || (sym->st_info&0xf) == STT_TLS ++ || ARCH_SYM_REJECT_UND(sym)) + continue; + if (!sym->st_value) + if ((sym->st_info&0xf) != STT_TLS) +-- +cgit v0.9.0.3-65-g4555 diff --git a/samples/arm-unknown-linux-muslgnueabi/crosstool.config b/samples/arm-unknown-linux-muslgnueabi/crosstool.config new file mode 100644 index 0000000..8b96eb1 --- /dev/null +++ b/samples/arm-unknown-linux-muslgnueabi/crosstool.config @@ -0,0 +1,10 @@ +CT_EXPERIMENTAL=y +CT_ARCH_ARCH="armv5te" +CT_ARCH_FLOAT_SW=y +CT_ARCH_arm=y +CT_KERNEL_linux=y +CT_BINUTILS_FOR_TARGET=y +CT_LIBC_musl=y +CT_CC_V_4_9_0=y +CT_CC_LANG_CXX=y +# CT_CC_GCC_SJLJ_EXCEPTIONS is not set diff --git a/samples/arm-unknown-linux-muslgnueabi/reported.by b/samples/arm-unknown-linux-muslgnueabi/reported.by new file mode 100644 index 0000000..7ba54a4 --- /dev/null +++ b/samples/arm-unknown-linux-muslgnueabi/reported.by @@ -0,0 +1,3 @@ +reporter_name="Bryan Hundven" +reporter_url="http://bhundven.github.io" +reporter_comment="" diff --git a/scripts/build/arch/arm.sh b/scripts/build/arch/arm.sh index 430bdde..ba87e0c 100644 --- a/scripts/build/arch/arm.sh +++ b/scripts/build/arch/arm.sh @@ -17,6 +17,7 @@ CT_DoArchTupleValues() { case "${CT_LIBC},${CT_ARCH_ARM_EABI}" in *glibc,y) CT_TARGET_SYS=gnueabi;; uClibc,y) CT_TARGET_SYS=uclibcgnueabi;; + musl,y) CT_TARGET_SYS=muslgnueabi;; *,y) CT_TARGET_SYS=eabi;; esac diff --git a/scripts/build/libc/musl.sh b/scripts/build/libc/musl.sh new file mode 100644 index 0000000..af2dba7 --- /dev/null +++ b/scripts/build/libc/musl.sh @@ -0,0 +1,111 @@ +# This file adds functions to build the musl C library +# Copyright 2013 Timo TerÃs +# Licensed under the GPL v2. See COPYING in the root of this package + +do_libc_get() { + local libc_src + + libc_src="http://www.musl-libc.org/releases" + + if [ "${CT_LIBC_MUSL_CUSTOM}" = "y" ]; then + CT_GetCustom "musl" "${CT_LIBC_VERSION}" \ + "${CT_LIBC_MUSL_CUSTOM_LOCATION}" + else # ! custom location + CT_GetFile "musl-${CT_LIBC_VERSION}" "${libc_src}" + fi # ! custom location +} + +do_libc_extract() { + # If using custom directory location, nothing to do. + if [ "${CT_LIBC_MUSL_CUSTOM}" = "y" ]; then + # Abort if the custom directory is not found. + if ! [ -d "${CT_SRC_DIR}/musl-${CT_LIBC_VERSION}" ]; then + CT_Abort "Directory not found: ${CT_SRC_DIR}/musl-${CT_LIBC_VERSION}" + fi + + return 0 + fi + + CT_Extract "musl-${CT_LIBC_VERSION}" + CT_Patch "musl" "${CT_LIBC_VERSION}" +} + +do_libc_check_config() { + : +} + +do_libc_configure() { + CT_DoLog EXTRA "Configuring C library" + local -a extra_cflags + + # From buildroot: + # gcc constant folding bug with weak aliases workaround + # See http://www.openwall.com/lists/musl/2014/05/15/1 + if [ "${CT_CC_GCC_4_9_or_later}" = "y" ]; then + extra_cflags+=("-fno-toplevel-reorder") + fi + + # NOTE: musl handles the build/host/target a little bit differently + # then one would expect: + # build : not used + # host : the machine building musl + # target : the machine musl runs on + CT_DoExecLog CFG \ + CFLAGS="${extra_cflags[@]}" \ + CROSS_COMPILE="${CT_TARGET}-" \ + ./configure \ + --host="${CT_BUILD}" \ + --target="${CT_TARGET}" \ + --prefix="/usr" \ + --disable-gcc-wrapper +} + +do_libc_start_files() { + local ARCH + + CT_DoStep INFO "Installing C library headers" + + # Simply copy files until musl has the ability to build out-of-tree + CT_DoLog EXTRA "Copying sources to build directory" + CT_DoExecLog ALL cp -av "${CT_SRC_DIR}/musl-${CT_LIBC_VERSION}" \ + "${CT_BUILD_DIR}/build-libc-headers" + cd "${CT_BUILD_DIR}/build-libc-headers" + + # musl can be installed without gcc if arch is known + case "${CT_TARGET}" in + arm*) ARCH=arm ;; + i?86*) ARCH=i386 ;; + x86_64*) ARCH=x86_64 ;; + mips-*|mipsel-*) ARCH=mips ;; + microblaze-*) ARCH=microblaze ;; + powerpc-*) ARCH=powerpc ;; + sh-*|sh[34]-*) ARCH=sh ;; + x32-*) ARCH=x32 ;; + *) return 1 ;; + esac + + CT_DoLog EXTRA "Installing headers" + CT_DoExecLog ALL make ARCH="${ARCH}" install-headers DESTDIR="${CT_SYSROOT_DIR}/" + + CT_EndStep +} + +do_libc() { + CT_DoStep INFO "Installing C library" + + # Simply copy files until musl has the ability to build out-of-tree + CT_DoLog EXTRA "Copying sources to build directory" + CT_DoExecLog ALL cp -av "${CT_SRC_DIR}/musl-${CT_LIBC_VERSION}" \ + "${CT_BUILD_DIR}/build-libc" + cd "${CT_BUILD_DIR}/build-libc" + + do_libc_configure + + CT_DoLog EXTRA "Building C library" + CT_DoExecLog ALL make ${JOBSFLAGS} + + CT_DoLog EXTRA "Installing C library" + CT_DoExecLog ALL make install DESTDIR="${CT_SYSROOT_DIR}/" + + CT_EndStep +} diff --git a/scripts/functions b/scripts/functions index b15601a..2cad8f1 100644 --- a/scripts/functions +++ b/scripts/functions @@ -1174,6 +1174,7 @@ CT_DoBuildTargetTuple() { case "${CT_LIBC}" in *glibc) CT_TARGET_SYS=gnu;; uClibc) CT_TARGET_SYS=uclibc;; + musl) CT_TARGET_SYS=musl;; *) CT_TARGET_SYS=elf;; esac -- 2.0.1 -- For unsubscribe information see http://sourceware.org/lists.html#faq
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