From 0a9ed0479203cb7e69c3745b0c259007410f39ba Mon Sep 17 00:00:00 2001 From: Szabolcs Nagy 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 * 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 * 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 --- 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