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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2009-11-30 00:24:35 +0100
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2009-11-30 00:24:35 +0100
commit76e00450db45bfc4f2766c67bc861228c1023a75 (patch)
tree30417c3c35253af1837f96c416d7a6813d2574ce /i386
parent5410b66caae0a92ca3c3fb2f2f26e38e5eda402b (diff)
Use gcc builtins for stdarg.h when available
* i386/include/mach/sa/stdarg.h [__GNUC__ >= 3] (va_list): Typedef to __builtin_va_list. (va_start): define to __builtin_va_start. (va_end): define to __builtin_va_end. (va_arg): define to __builtin_va_arg.
Diffstat (limited to 'i386')
-rw-r--r--i386/include/mach/sa/stdarg.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/i386/include/mach/sa/stdarg.h b/i386/include/mach/sa/stdarg.h
index 01b2dc7..ba0f78a 100644
--- a/i386/include/mach/sa/stdarg.h
+++ b/i386/include/mach/sa/stdarg.h
@@ -29,6 +29,16 @@
#ifndef _MACH_SA_STDARG_H_
#define _MACH_SA_STDARG_H_
+#if __GNUC__ >= 3
+
+typedef __builtin_va_list va_list;
+
+#define va_start(v,l) __builtin_va_start(v,l)
+#define va_end(v) __builtin_va_end(v)
+#define va_arg(v,l) __builtin_va_arg(v,l)
+
+#else
+
#define __va_size(type) ((sizeof(type)+3) & ~0x3)
#ifndef _VA_LIST_
@@ -43,4 +53,6 @@ typedef char *va_list;
((pvar) += __va_size(type), \
*((type *)((pvar) - __va_size(type))))
+#endif
+
#endif /* _MACH_SA_STDARG_H_ */