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authorJoseph Myers <joseph@codesourcery.com>2012-02-06 18:05:54 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-02-06 18:05:54 +0000
commit314054eaef2aec965d2f1bced7e86abca118463e (patch)
treec03cbc61bd1fa1c67fff971903fafca1088a3df3 /sysdeps
parentd8e0ca509a83e832123f6ab508fce620159fb2dc (diff)
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Match x86 PIC thunk names to compiler version.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/i386/sysdep.h19
1 files changed, 16 insertions, 3 deletions
diff --git a/sysdeps/i386/sysdep.h b/sysdeps/i386/sysdep.h
index 2c0aafa75b..1dbb8e12a9 100644
--- a/sysdeps/i386/sysdep.h
+++ b/sysdeps/i386/sysdep.h
@@ -20,10 +20,23 @@
 
 #include <sysdeps/generic/sysdep.h>
 
-#ifdef __ASSEMBLER__
-# define GET_PC_THUNK(reg) __i686.get_pc_thunk.reg
+#include <features.h> /* For __GNUC_PREREQ.  */
+
+/* It is desirable that the names of PIC thunks match those used by
+   GCC so that multiple copies are eliminated by the linker.  */
+
+#ifdef	__ASSEMBLER__
+# if __GNUC_PREREQ (4, 7)
+#  define GET_PC_THUNK(reg) __x86.get_pc_thunk.reg
+# else
+#  define GET_PC_THUNK(reg) __i686.get_pc_thunk.reg
+# endif
 #else
-# define GET_PC_THUNK_STR(reg) "__i686.get_pc_thunk." #reg
+# if __GNUC_PREREQ (4, 7)
+#  define GET_PC_THUNK_STR(reg) "__x86.get_pc_thunk." #reg
+# else
+#  define GET_PC_THUNK_STR(reg) "__i686.get_pc_thunk." #reg
+# endif
 #endif
 
 #ifdef	__ASSEMBLER__