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authorMans Rullgard <mans@mansr.com>2012-08-08 14:37:57 +0100
committerMans Rullgard <mans@mansr.com>2012-08-09 00:58:20 +0100
commit070a402b60cb4ebc6fd2ba59c13758811815bb19 (patch)
tree2feb29c4a9807cb2a1c8023bf59fb6add356c838 /libavutil/x86
parentc318626ce248e55df032146b16e8e0f4ed1d99fb (diff)
x86: move MANGLE() and related macros to libavutil/x86/asm.h
These x86-specific macros do not belong in generic code. Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavutil/x86')
-rw-r--r--libavutil/x86/asm.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/libavutil/x86/asm.h b/libavutil/x86/asm.h
index b447fabb57..a43ab3c074 100644
--- a/libavutil/x86/asm.h
+++ b/libavutil/x86/asm.h
@@ -95,4 +95,16 @@ typedef int x86_reg;
# define XMM_CLOBBERS_ONLY(...)
#endif
+/* Use to export labels from asm. */
+#define LABEL_MANGLE(a) EXTERN_PREFIX #a
+
+// Use rip-relative addressing if compiling PIC code on x86-64.
+#if ARCH_X86_64 && defined(PIC)
+# define LOCAL_MANGLE(a) #a "(%%rip)"
+#else
+# define LOCAL_MANGLE(a) #a
+#endif
+
+#define MANGLE(a) EXTERN_PREFIX LOCAL_MANGLE(a)
+
#endif /* AVUTIL_X86_ASM_H */