X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=include%2Fsetjmp.h;h=1976af231b8c4acee1a4115c20afb48d12a85d6a;hb=dc9285ad1dc19349c407072cc48ba70dab86de45;hp=b024c44eb3eda05ab0218813be700b01dbfc5dc2;hpb=e8362c8b51ffa205cf0ada159445c482e85e1a81;p=musl

diff --git a/include/setjmp.h b/include/setjmp.h
index b024c44e..1976af23 100644
--- a/include/setjmp.h
+++ b/include/setjmp.h
@@ -5,31 +5,42 @@
 extern "C" {
 #endif
 
+#include <features.h>
+
 #include <bits/setjmp.h>
 
+typedef struct __jmp_buf_tag {
+	__jmp_buf __jb;
+	unsigned long __fl;
+	unsigned long __ss[128/sizeof(long)];
+} jmp_buf[1];
 
-#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
- || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
-typedef unsigned long sigjmp_buf[(128+sizeof(jmp_buf))/sizeof(long)];
-#ifdef _GNU_SOURCE
-#define jmp_buf sigjmp_buf
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 1)
+#define __setjmp_attr __attribute__((__returns_twice__))
+#else
+#define __setjmp_attr
 #endif
-int sigsetjmp (sigjmp_buf, int);
-void siglongjmp (sigjmp_buf, int);
-#endif
-
 
-#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)
-int _setjmp (jmp_buf);
-void _longjmp (jmp_buf, int);
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
+ || defined(_BSD_SOURCE)
+typedef jmp_buf sigjmp_buf;
+int sigsetjmp (sigjmp_buf, int) __setjmp_attr;
+_Noreturn void siglongjmp (sigjmp_buf, int);
 #endif
 
+#if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \
+ || defined(_BSD_SOURCE)
+int _setjmp (jmp_buf) __setjmp_attr;
+_Noreturn void _longjmp (jmp_buf, int);
+#endif
 
-int setjmp (jmp_buf);
-void longjmp (jmp_buf, int);
+int setjmp (jmp_buf) __setjmp_attr;
+_Noreturn void longjmp (jmp_buf, int);
 
 #define setjmp setjmp
-#define longjmp longjmp
+
+#undef __setjmp_attr
 
 #ifdef __cplusplus
 }