fix reversed argument order x86_64 sigsetjmp's call to sigprocmask

[musl] / include / stdarg.h

diff --git a/include/stdarg.h b/include/stdarg.h
index cb18778..60d4e2a 100644 (file)
--- a/include/stdarg.h
+++ b/include/stdarg.h
@@ -9,22 +9,15 @@ extern "C" {
 
 #include <bits/alltypes.h>
 
-#define __VA_ALIGNED_SIZE(x) ((sizeof(x) + sizeof(int) - 1) & ~(sizeof(int) - 1))
-
-#define va_start(ap, last) ((ap) = (void *)(((char *)&(last)) + __VA_ALIGNED_SIZE(last)))
-#define va_end(ap) ((void)0)
-#define va_copy(dest, src) ((dest) = (src))
-
-#if 0
-#define va_arg(ap, type) \
-       ( ((ap) = (va_list)((char *)(ap) + sizeof(type))), \
-       *(type *)(void *)((char *)(ap) - sizeof(type)) )
+#if __GNUC__ >= 3
+#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)
+#define va_copy(d,s)    __builtin_va_copy(d,s)
+#else
+#include <bits/stdarg.h>
 #endif
 
-#define va_arg(ap, type) \
-       ( ((ap) = (va_list)((char *)(ap) + __VA_ALIGNED_SIZE(type))), \
-       *(type *)(void *)((char *)(ap) - __VA_ALIGNED_SIZE(type)) )
-
 #ifdef __cplusplus
 }
 #endif