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@@ -0,0 +1,321 @@
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1
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+--- a/gcc/config.gcc
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++++ b/gcc/config.gcc
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+@@ -549,7 +549,7 @@ case ${target} in
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+ esac
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+
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+ # Common C libraries.
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+-tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3"
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++tm_defines="$tm_defines LIBC_GLIBC=1 LIBC_UCLIBC=2 LIBC_BIONIC=3 LIBC_MUSL=4"
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+
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+ # Common parts for widely ported systems.
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+ case ${target} in
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+@@ -652,6 +652,9 @@ case ${target} in
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+ *-*-*uclibc*)
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+ tm_defines="$tm_defines DEFAULT_LIBC=LIBC_UCLIBC"
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+ ;;
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++ *-*-*musl*)
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++ tm_defines="$tm_defines DEFAULT_LIBC=LIBC_MUSL"
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++ ;;
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+ *)
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+ tm_defines="$tm_defines DEFAULT_LIBC=LIBC_GLIBC"
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+ ;;
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+--- a/gcc/config/arm/linux-eabi.h
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++++ b/gcc/config/arm/linux-eabi.h
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+@@ -77,6 +77,10 @@
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+ %{mfloat-abi=soft*:" GLIBC_DYNAMIC_LINKER_SOFT_FLOAT "} \
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+ %{!mfloat-abi=*:" GLIBC_DYNAMIC_LINKER_DEFAULT "}"
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+
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++/* musl has no "classic" (i.e. broken) mode */
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++#undef MUSL_DYNAMIC_LINKER
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++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-arm.so.1"
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++
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+ /* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
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+ use the GNU/Linux version, not the generic BPABI version. */
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+ #undef LINK_SPEC
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+--- a/gcc/config/i386/linux.h
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++++ b/gcc/config/i386/linux.h
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+@@ -21,3 +21,4 @@ along with GCC; see the file COPYING3.
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+
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+ #define GNU_USER_LINK_EMULATION "elf_i386"
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+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
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++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-i386.so.1"
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+--- a/gcc/config/i386/linux64.h
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++++ b/gcc/config/i386/linux64.h
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+@@ -30,3 +30,7 @@ see the files COPYING3 and COPYING.RUNTI
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+ #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
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+ #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux-x86-64.so.2"
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+ #define GLIBC_DYNAMIC_LINKERX32 "/libx32/ld-linux-x32.so.2"
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++
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++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-i386.so.1"
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++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-x86_64.so.1"
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++#define MUSL_DYNAMIC_LINKERX32 "/lib/ld-musl-x32.so.1"
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+--- a/gcc/config/linux.h
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++++ b/gcc/config/linux.h
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+@@ -32,10 +32,12 @@ see the files COPYING3 and COPYING.RUNTI
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+ #define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC)
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+ #define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
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+ #define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
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++#define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL)
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+ #else
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+ #define OPTION_GLIBC (linux_libc == LIBC_GLIBC)
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+ #define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
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+ #define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
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++#define OPTION_MUSL (linux_libc == LIBC_MUSL)
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+ #endif
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+
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+ #define GNU_USER_TARGET_OS_CPP_BUILTINS() \
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+@@ -53,18 +55,21 @@ see the files COPYING3 and COPYING.RUNTI
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+ uClibc or Bionic is the default C library and whether
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+ -muclibc or -mglibc or -mbionic has been passed to change the default. */
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+
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+-#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LD1, LD2, LD3) \
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+- "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:" LD1 "}}"
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++#define CHOOSE_DYNAMIC_LINKER1(LIBC1, LIBC2, LIBC3, LIBC4, LD1, LD2, LD3, LD4) \
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++ "%{" LIBC2 ":" LD2 ";:%{" LIBC3 ":" LD3 ";:%{" LIBC4 ":" LD4 ";:" LD1 "}}}"
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+
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+ #if DEFAULT_LIBC == LIBC_GLIBC
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+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
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+- CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", G, U, B)
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++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
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++ CHOOSE_DYNAMIC_LINKER1 ("mglibc", "muclibc", "mbionic", "mmusl", G, U, B, M)
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+ #elif DEFAULT_LIBC == LIBC_UCLIBC
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+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
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+- CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", U, G, B)
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84
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++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
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++ CHOOSE_DYNAMIC_LINKER1 ("muclibc", "mglibc", "mbionic", "mmusl", U, G, B, M)
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+ #elif DEFAULT_LIBC == LIBC_BIONIC
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+-#define CHOOSE_DYNAMIC_LINKER(G, U, B) \
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+- CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", B, G, U)
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89
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++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
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++ CHOOSE_DYNAMIC_LINKER1 ("mbionic", "mglibc", "muclibc", "mmusl", B, G, U, M)
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++#elif DEFAULT_LIBC == LIBC_MUSL
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92
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++#define CHOOSE_DYNAMIC_LINKER(G, U, B, M) \
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++ CHOOSE_DYNAMIC_LINKER1 ("mmusl", "mglibc", "muclibc", "mbionic", M, G, U, B)
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+ #else
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+ #error "Unsupported DEFAULT_LIBC"
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+ #endif /* DEFAULT_LIBC */
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+@@ -84,16 +89,16 @@ see the files COPYING3 and COPYING.RUNTI
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+
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+ #define GNU_USER_DYNAMIC_LINKER \
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+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, \
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+- BIONIC_DYNAMIC_LINKER)
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++ BIONIC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
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+ #define GNU_USER_DYNAMIC_LINKER32 \
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+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, \
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+- BIONIC_DYNAMIC_LINKER32)
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++ BIONIC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32)
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+ #define GNU_USER_DYNAMIC_LINKER64 \
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+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, \
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+- BIONIC_DYNAMIC_LINKER64)
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++ BIONIC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64)
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+ #define GNU_USER_DYNAMIC_LINKERX32 \
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+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERX32, UCLIBC_DYNAMIC_LINKERX32, \
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+- BIONIC_DYNAMIC_LINKERX32)
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++ BIONIC_DYNAMIC_LINKERX32, MUSL_DYNAMIC_LINKERX32)
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+
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+ /* Determine whether the entire c99 runtime
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+ is present in the runtime library. */
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+--- a/gcc/config/linux.opt
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++++ b/gcc/config/linux.opt
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+@@ -30,3 +30,7 @@ Use GNU C library
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+ muclibc
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+ Target Report RejectNegative Var(linux_libc,LIBC_UCLIBC) Negative(mbionic)
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+ Use uClibc C library
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++
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++mmusl
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++Target Report RejectNegative Var(linux_libc,LIBC_MUSL) Negative(mglibc)
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++Use musl C library
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+--- a/gcc/config/mips/linux.h
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++++ b/gcc/config/mips/linux.h
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+@@ -18,3 +18,5 @@ along with GCC; see the file COPYING3.
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+ <http://www.gnu.org/licenses/>. */
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+
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+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
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++
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++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-mips.so.1"
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+--- a/gcc/config/rs6000/linux64.h
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++++ b/gcc/config/rs6000/linux64.h
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+@@ -364,17 +364,21 @@ extern int dot_symbols;
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+ #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld64.so.1"
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+ #define UCLIBC_DYNAMIC_LINKER32 "/lib/ld-uClibc.so.0"
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+ #define UCLIBC_DYNAMIC_LINKER64 "/lib/ld64-uClibc.so.0"
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++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-powerpc.so.1"
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++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-powerpc64.so.1"
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+ #if DEFAULT_LIBC == LIBC_UCLIBC
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+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
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++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}"
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+ #elif DEFAULT_LIBC == LIBC_GLIBC
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+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
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++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}"
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++#elif DEFAULT_LIBC == LIBC_MUSL
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++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}"
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+ #else
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+ #error "Unsupported DEFAULT_LIBC"
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154
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+ #endif
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155
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+ #define GNU_USER_DYNAMIC_LINKER32 \
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+- CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32)
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157
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++ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER32, UCLIBC_DYNAMIC_LINKER32, MUSL_DYNAMIC_LINKER32)
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158
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+ #define GNU_USER_DYNAMIC_LINKER64 \
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159
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+- CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64)
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160
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++ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER64, UCLIBC_DYNAMIC_LINKER64, MUSL_DYNAMIC_LINKER64)
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161
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+
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162
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+
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163
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+ #define LINK_OS_LINUX_SPEC32 "-m elf32ppclinux %{!shared: %{!static: \
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164
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+--- a/gcc/config/rs6000/sysv4.h
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165
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++++ b/gcc/config/rs6000/sysv4.h
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166
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+@@ -789,15 +789,18 @@ extern int fixuplabelno;
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167
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+
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168
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+ #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
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169
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+ #define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
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170
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++#define MUSL_DYNAMIC_LINKER "/lib/ld-musl-powerpc.so.1"
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171
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+ #if DEFAULT_LIBC == LIBC_UCLIBC
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172
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+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:" G ";:" U "}"
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173
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++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{mmusl:" M ";:" U "}}"
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174
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++#elif DEFAULT_LIBC == LIBC_MUSL
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175
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++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{mglibc:" G ";:%{muclibc:" U ";:" M "}}"
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176
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+ #elif !defined (DEFAULT_LIBC) || DEFAULT_LIBC == LIBC_GLIBC
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177
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+-#define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:" U ";:" G "}"
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178
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++#define CHOOSE_DYNAMIC_LINKER(G, U, M) "%{muclibc:" U ";:%{mmusl:" M ";:" G "}}"
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179
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+ #else
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180
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+ #error "Unsupported DEFAULT_LIBC"
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181
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+ #endif
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182
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+ #define GNU_USER_DYNAMIC_LINKER \
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183
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+- CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER)
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184
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++ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER, MUSL_DYNAMIC_LINKER)
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185
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+
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186
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+ #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
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187
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+ %{rdynamic:-export-dynamic} \
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188
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+--- a/gcc/ginclude/stddef.h
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189
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++++ b/gcc/ginclude/stddef.h
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190
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+@@ -181,6 +181,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t;
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191
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+ #ifndef _GCC_SIZE_T
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192
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+ #ifndef _SIZET_
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193
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+ #ifndef __size_t
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194
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++#ifndef __DEFINED_size_t /* musl */
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195
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+ #define __size_t__ /* BeOS */
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196
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+ #define __SIZE_T__ /* Cray Unicos/Mk */
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197
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+ #define _SIZE_T
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198
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+@@ -197,6 +198,7 @@ typedef __PTRDIFF_TYPE__ ptrdiff_t;
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199
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+ #define ___int_size_t_h
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200
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+ #define _GCC_SIZE_T
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201
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+ #define _SIZET_
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202
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++#define __DEFINED_size_t /* musl */
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203
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+ #if (defined (__FreeBSD__) && (__FreeBSD__ >= 5)) \
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204
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+ || defined(__FreeBSD_kernel__)
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205
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+ /* __size_t is a typedef on FreeBSD 5, must not trash it. */
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206
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+@@ -214,6 +216,7 @@ typedef __SIZE_TYPE__ size_t;
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207
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+ typedef long ssize_t;
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208
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+ #endif /* __BEOS__ */
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209
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+ #endif /* !(defined (__GNUG__) && defined (size_t)) */
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210
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++#endif /* __DEFINED_size_t */
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211
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+ #endif /* __size_t */
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212
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+ #endif /* _SIZET_ */
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213
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+ #endif /* _GCC_SIZE_T */
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214
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+--- a/libgomp/config/posix/time.c
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215
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++++ b/libgomp/config/posix/time.c
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216
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+@@ -28,6 +28,8 @@
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217
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+ The following implementation uses the most simple POSIX routines.
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218
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+ If present, POSIX 4 clocks should be used instead. */
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219
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+
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220
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++#define _POSIX_C_SOURCE 199309L /* for clocks */
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221
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++
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222
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+ #include "libgomp.h"
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223
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+ #include <unistd.h>
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224
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+ #if TIME_WITH_SYS_TIME
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225
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+--- a/libitm/config/arm/hwcap.cc
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226
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++++ b/libitm/config/arm/hwcap.cc
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227
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+@@ -40,7 +40,11 @@ int GTM_hwcap HIDDEN = 0
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228
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+
|
|
229
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+ #ifdef __linux__
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|
230
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+ #include <unistd.h>
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231
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++#ifdef __GLIBC__
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232
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+ #include <sys/fcntl.h>
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|
233
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++#else
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|
234
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++#include <fcntl.h>
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235
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++#endif
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236
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+ #include <elf.h>
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|
237
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+
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|
238
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+ static void __attribute__((constructor))
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|
239
|
+--- a/libitm/config/linux/x86/tls.h
|
|
240
|
++++ b/libitm/config/linux/x86/tls.h
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|
241
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+@@ -25,16 +25,19 @@
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|
242
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+ #ifndef LIBITM_X86_TLS_H
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243
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+ #define LIBITM_X86_TLS_H 1
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|
244
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+
|
|
245
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+-#if defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 10)
|
|
246
|
++#if defined(__GLIBC_PREREQ)
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|
247
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++#if __GLIBC_PREREQ(2, 10)
|
|
248
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+ /* Use slots in the TCB head rather than __thread lookups.
|
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249
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+ GLIBC has reserved words 10 through 13 for TM. */
|
|
250
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+ #define HAVE_ARCH_GTM_THREAD 1
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251
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+ #define HAVE_ARCH_GTM_THREAD_DISP 1
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|
252
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+ #endif
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|
253
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++#endif
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|
254
|
+
|
|
255
|
+ #include "config/generic/tls.h"
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|
256
|
+
|
|
257
|
+-#if defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 10)
|
|
258
|
++#if defined(__GLIBC_PREREQ)
|
|
259
|
++#if __GLIBC_PREREQ(2, 10)
|
|
260
|
+ namespace GTM HIDDEN {
|
|
261
|
+
|
|
262
|
+ #ifdef __x86_64__
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|
263
|
+@@ -101,5 +104,6 @@ static inline void set_abi_disp(struct a
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|
264
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+
|
|
265
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+ } // namespace GTM
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266
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+ #endif /* >= GLIBC 2.10 */
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267
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++#endif
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268
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+
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269
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+ #endif // LIBITM_X86_TLS_H
|
|
270
|
+--- a/libstdc++-v3/configure.host
|
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271
|
++++ b/libstdc++-v3/configure.host
|
|
272
|
+@@ -264,6 +264,13 @@ case "${host_os}" in
|
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273
|
+ os_include_dir="os/bsd/freebsd"
|
|
274
|
+ ;;
|
|
275
|
+ gnu* | linux* | kfreebsd*-gnu | knetbsd*-gnu)
|
|
276
|
++ # check for musl by target
|
|
277
|
++ case "${host_os}" in
|
|
278
|
++ *-musl*)
|
|
279
|
++ os_include_dir="os/generic"
|
|
280
|
++ ;;
|
|
281
|
++ *)
|
|
282
|
++
|
|
283
|
+ if [ "$uclibc" = "yes" ]; then
|
|
284
|
+ os_include_dir="os/uclibc"
|
|
285
|
+ elif [ "$bionic" = "yes" ]; then
|
|
286
|
+@@ -272,6 +279,9 @@ case "${host_os}" in
|
|
287
|
+ os_include_dir="os/gnu-linux"
|
|
288
|
+ fi
|
|
289
|
+ ;;
|
|
290
|
++
|
|
291
|
++ esac
|
|
292
|
++ ;;
|
|
293
|
+ hpux*)
|
|
294
|
+ os_include_dir="os/hpux"
|
|
295
|
+ ;;
|
|
296
|
+--- a/gcc/config/mips/linux64.h
|
|
297
|
++++ b/gcc/config/mips/linux64.h
|
|
298
|
+@@ -27,6 +27,9 @@ along with GCC; see the file COPYING3.
|
|
299
|
+ #define GLIBC_DYNAMIC_LINKERN32 "/lib32/ld.so.1"
|
|
300
|
+ #define UCLIBC_DYNAMIC_LINKERN32 "/lib32/ld-uClibc.so.0"
|
|
301
|
+ #define BIONIC_DYNAMIC_LINKERN32 "/system/bin/linker32"
|
|
302
|
++#define MUSL_DYNAMIC_LINKERN32 "/lib/ld-musl-mips.so.1"
|
|
303
|
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-mips.so.1"
|
|
304
|
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-mips.so.1"
|
|
305
|
+ #define GNU_USER_DYNAMIC_LINKERN32 \
|
|
306
|
+ CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERN32, UCLIBC_DYNAMIC_LINKERN32, \
|
|
307
|
+- BIONIC_DYNAMIC_LINKERN32)
|
|
308
|
++ BIONIC_DYNAMIC_LINKERN32, MUSL_DYNAMIC_LINKERN32)
|
|
309
|
+--- a/gcc/config/sparc/linux64.h 2013-09-10 10:02:45.663973856 +0100
|
|
310
|
++++ b/gcc/config/sparc/linux64.h 2013-09-10 10:03:17.871972435 +0100
|
|
311
|
+@@ -104,6 +104,9 @@
|
|
312
|
+ #define GLIBC_DYNAMIC_LINKER32 "/lib/ld-linux.so.2"
|
|
313
|
+ #define GLIBC_DYNAMIC_LINKER64 "/lib64/ld-linux.so.2"
|
|
314
|
+
|
|
315
|
++#define MUSL_DYNAMIC_LINKER32 "/lib/ld-musl-sparc.so.1"
|
|
316
|
++#define MUSL_DYNAMIC_LINKER64 "/lib/ld-musl-sparc.so.1"
|
|
317
|
++
|
|
318
|
+ #ifdef SPARC_BI_ARCH
|
|
319
|
+
|
|
320
|
+ #undef SUBTARGET_EXTRA_SPECS
|
|
321
|
+
|