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# HG changeset patch
# Parent 6738fd6f6fcc2a72f2ba527bda3325642af26885
Support for arm-linux-musl.
Upstream-Status: backport [partial]
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Index: gcc-5.1.0/gcc/config/arm/linux-eabi.h
===================================================================
--- gcc-5.1.0.orig/gcc/config/arm/linux-eabi.h
+++ gcc-5.1.0/gcc/config/arm/linux-eabi.h
@@ -81,6 +81,23 @@
#undef TARGET_FIX_V4BX_SPEC
#define TARGET_FIX_V4BX_SPEC "%{mcpu=arm8|mcpu=arm810|mcpu=strongarm*|march=armv4: --fix-v4bx}"
+/* For ARM musl currently supports four dynamic linkers:
+ - ld-musl-arm.so.1 - for the EABI-derived soft-float ABI
+ - ld-musl-armhf.so.1 - for the EABI-derived hard-float ABI
+ - ld-musl-armeb.so.1 - for the EABI-derived soft-float ABI, EB
+ - ld-musl-armebhf.so.1 - for the EABI-derived hard-float ABI, EB
+ musl does not support the legacy OABI mode.
+ All the dynamic linkers live in /lib.
+ We default to soft-float, EL. */
+#undef MUSL_DYNAMIC_LINKER
+#if TARGET_BIG_ENDIAN_DEFAULT
+#define MUSL_DYNAMIC_LINKER_E "%{mlittle-endian:;:eb}"
+#else
+#define MUSL_DYNAMIC_LINKER_E "%{mbig-endian:eb}"
+#endif
+#define MUSL_DYNAMIC_LINKER \
+ SYSTEMLIBS_DIR "ld-musl-arm" MUSL_DYNAMIC_LINKER_E "%{mfloat-abi=hard:hf}.so.1"
+
/* At this point, bpabi.h will have clobbered LINK_SPEC. We want to
use the GNU/Linux version, not the generic BPABI version. */
#undef LINK_SPEC
Index: gcc-5.1.0/libitm/config/arm/hwcap.cc
===================================================================
--- gcc-5.1.0.orig/libitm/config/arm/hwcap.cc
+++ gcc-5.1.0/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))
Index: gcc-5.1.0/gcc/config/i386/linux.h
===================================================================
--- gcc-5.1.0.orig/gcc/config/i386/linux.h
+++ gcc-5.1.0/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 SYSTEMLIBS_DIR "ld-linux.so.2"
+#define MUSL_DYNAMIC_LINKER SYSTEMLIBS_DIR "ld-musl-i386.so.1"
Index: gcc-5.1.0/gcc/config/i386/linux64.h
===================================================================
--- gcc-5.1.0.orig/gcc/config/i386/linux64.h
+++ gcc-5.1.0/gcc/config/i386/linux64.h
@@ -30,3 +30,8 @@ see the files COPYING3 and COPYING.RUNTI
#define GLIBC_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-linux.so.2"
#define GLIBC_DYNAMIC_LINKER64 SYSTEMLIBS_DIR "ld-linux-x86-64.so.2"
#define GLIBC_DYNAMIC_LINKERX32 SYSTEMLIBS_DIR "ld-linux-x32.so.2"
+
+#define MUSL_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-musl-i386.so.1"
+#define MUSL_DYNAMIC_LINKER64 SYSTEMLIBS_DIR "ld-musl-x86_64.so.1"
+#define MUSL_DYNAMIC_LINKERX32 SYSTEMLIBS_DIR "ld-musl-x32.so.1"
+
Index: gcc-5.1.0/gcc/config/mips/linux.h
===================================================================
--- gcc-5.1.0.orig/gcc/config/mips/linux.h
+++ gcc-5.1.0/gcc/config/mips/linux.h
@@ -21,6 +21,10 @@ along with GCC; see the file COPYING3.
#define GNU_USER_LINK_EMULATION64 "elf64%{EB:b}%{EL:l}tsmip"
#define GNU_USER_LINK_EMULATIONN32 "elf32%{EB:b}%{EL:l}tsmipn32"
+#define MUSL_DYNAMIC_LINKERN32 SYSTEMLIBS_DIR "ld-musl-mips.so.1"
+#define MUSL_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-musl-mips.so.1"
+#define MUSL_DYNAMIC_LINKER64 SYSTEMLIBS_DIR "ld-musl-mips.so.1"
+
#define GLIBC_DYNAMIC_LINKER32 \
"%{mnan=2008:" SYSTEMLIBS_DIR "ld-linux-mipsn8.so.1;:" SYSTEMLIBS_DIR "ld.so.1}"
#define GLIBC_DYNAMIC_LINKER64 \
@@ -40,4 +44,4 @@ along with GCC; see the file COPYING3.
#define BIONIC_DYNAMIC_LINKERN32 "/system/bin/linker32"
#define GNU_USER_DYNAMIC_LINKERN32 \
CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKERN32, UCLIBC_DYNAMIC_LINKERN32, \
- BIONIC_DYNAMIC_LINKERN32)
+ BIONIC_DYNAMIC_LINKERN32, MUSL_DYNAMIC_LINKERN32)
Index: gcc-5.1.0/gcc/config/rs6000/linux64.h
===================================================================
--- gcc-5.1.0.orig/gcc/config/rs6000/linux64.h
+++ gcc-5.1.0/gcc/config/rs6000/linux64.h
@@ -365,17 +365,22 @@ extern int dot_symbols;
#endif
#define UCLIBC_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-uClibc.so.0"
#define UCLIBC_DYNAMIC_LINKER64 SYSTEMLIBS_DIR "ld64-uClibc.so.0"
+#define MUSL_DYNAMIC_LINKER32 SYSTEMLIBS_DIR "ld-musl-powerpc.so.1"
+#define MUSL_DYNAMIC_LINKER64 SYSTEMLIBS_DIR "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)
Index: gcc-5.1.0/gcc/config/rs6000/sysv4.h
===================================================================
--- gcc-5.1.0.orig/gcc/config/rs6000/sysv4.h
+++ gcc-5.1.0/gcc/config/rs6000/sysv4.h
@@ -769,15 +769,19 @@ 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} \
Index: gcc-5.1.0/libitm/config/linux/x86/tls.h
===================================================================
--- gcc-5.1.0.orig/libitm/config/linux/x86/tls.h
+++ gcc-5.1.0/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
Index: gcc-5.1.0/gcc/config/aarch64/aarch64-linux.h
===================================================================
--- gcc-5.1.0.orig/gcc/config/aarch64/aarch64-linux.h
+++ gcc-5.1.0/gcc/config/aarch64/aarch64-linux.h
@@ -22,6 +22,7 @@
#define GCC_AARCH64_LINUX_H
#define GLIBC_DYNAMIC_LINKER SYSTEMLIBS_DIR "ld-linux-aarch64%{mbig-endian:_be}%{mabi=ilp32:_ilp32}.so.1"
+#define MUSL_DYNAMIC_LINKER SYSTEMLIBS_DIR "ld-musl-aarch64.so.1"
#undef ASAN_CC1_SPEC
#define ASAN_CC1_SPEC "%{%:sanitize(address):-funwind-tables}"
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