diff options
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-6.1.inc | 1 | ||||
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-6.1/0047-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch | 85 |
2 files changed, 86 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-6.1.inc b/meta/recipes-devtools/gcc/gcc-6.1.inc index afeeff4c51..0426028d79 100644 --- a/meta/recipes-devtools/gcc/gcc-6.1.inc +++ b/meta/recipes-devtools/gcc/gcc-6.1.inc @@ -78,6 +78,7 @@ SRC_URI = "\ file://0044-gcc-final.c-fdebug-prefix-map-support-to-remap-sourc.patch \ file://0045-libgcc-Add-knob-to-use-ldbl-128-on-ppc.patch \ file://0046-Link-libgcc-using-LDFLAGS-not-just-SHLIB_LDFLAGS.patch \ + file://0047-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch \ ${BACKPORTS} \ file://CVE-2016-4490.patch \ " diff --git a/meta/recipes-devtools/gcc/gcc-6.1/0047-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch b/meta/recipes-devtools/gcc/gcc-6.1/0047-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch new file mode 100644 index 0000000000..ed6cd6905c --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-6.1/0047-libgcc_s-Use-alias-for-__cpu_indicator_init-instead-.patch @@ -0,0 +1,85 @@ +From 0a9ed0479203cb7e69c3745b0c259007410f39ba Mon Sep 17 00:00:00 2001 +From: Szabolcs Nagy <nsz@port70.net> +Date: Sat, 24 Oct 2015 20:09:53 +0000 +Subject: [PATCH 47/47] libgcc_s: Use alias for __cpu_indicator_init instead of + symver + +Adapter from + +https://gcc.gnu.org/ml/gcc-patches/2015-05/msg00899.html + +This fix was debated but hasnt been applied gcc upstream since +they expect musl to support '@' in symbol versioning which is +a sun/gnu versioning extention. This patch however avoids the +need for the '@' symbols at all + +libgcc/Changelog: + +2015-05-11 Szabolcs Nagy <szabolcs.nagy@arm.com> + + * config/i386/cpuinfo.c (__cpu_indicator_init_local): Add. + (__cpu_indicator_init@GCC_4.8.0, __cpu_model@GCC_4.8.0): Remove. + + * config/i386/t-linux (HOST_LIBGCC2_CFLAGS): Remove -DUSE_ELF_SYMVER. + +gcc/Changelog: + +2015-05-11 Szabolcs Nagy <szabolcs.nagy@arm.com> + + * config/i386/i386.c (ix86_expand_builtin): Make __builtin_cpu_init + call __cpu_indicator_init_local instead of __cpu_indicator_init. + +Signed-off-by: Khem Raj <raj.khem@gmail.com> +--- +Upstream-Status: Rejected + + gcc/config/i386/i386.c | 4 ++-- + libgcc/config/i386/cpuinfo.c | 6 +++--- + libgcc/config/i386/t-linux | 2 +- + 3 files changed, 6 insertions(+), 6 deletions(-) + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index 861a029..1c97d72 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -40323,10 +40323,10 @@ ix86_expand_builtin (tree exp, rtx target, rtx subtarget, + { + case IX86_BUILTIN_CPU_INIT: + { +- /* Make it call __cpu_indicator_init in libgcc. */ ++ /* Make it call __cpu_indicator_init_local in libgcc.a. */ + tree call_expr, fndecl, type; + type = build_function_type_list (integer_type_node, NULL_TREE); +- fndecl = build_fn_decl ("__cpu_indicator_init", type); ++ fndecl = build_fn_decl ("__cpu_indicator_init_local", type); + call_expr = build_call_expr (fndecl, 0); + return expand_expr (call_expr, target, mode, EXPAND_NORMAL); + } +diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c +index 8c2248d..6c82f15 100644 +--- a/libgcc/config/i386/cpuinfo.c ++++ b/libgcc/config/i386/cpuinfo.c +@@ -485,7 +485,7 @@ __cpu_indicator_init (void) + return 0; + } + +-#if defined SHARED && defined USE_ELF_SYMVER +-__asm__ (".symver __cpu_indicator_init, __cpu_indicator_init@GCC_4.8.0"); +-__asm__ (".symver __cpu_model, __cpu_model@GCC_4.8.0"); ++#ifndef SHARED ++int __cpu_indicator_init_local (void) ++ __attribute__ ((weak, alias ("__cpu_indicator_init"))); + #endif +diff --git a/libgcc/config/i386/t-linux b/libgcc/config/i386/t-linux +index 11bb46e..4f47f7b 100644 +--- a/libgcc/config/i386/t-linux ++++ b/libgcc/config/i386/t-linux +@@ -3,4 +3,4 @@ + # t-slibgcc-elf-ver and t-linux + SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/i386/libgcc-glibc.ver + +-HOST_LIBGCC2_CFLAGS += -mlong-double-80 -DUSE_ELF_SYMVER ++HOST_LIBGCC2_CFLAGS += -mlong-double-80 +-- +2.9.0 + |