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authordim <dim@FreeBSD.org>2012-04-29 11:04:31 +0000
committerdim <dim@FreeBSD.org>2012-04-29 11:04:31 +0000
commit81a3e2b46db5474df3633b850805e5e981a6cbb4 (patch)
tree698e4c5df1fba3867e4ca78763a6760206f74894 /include
parent6b0b09e72a82ff0e99c864ca023a9eb62f72d629 (diff)
downloadFreeBSD-src-81a3e2b46db5474df3633b850805e5e981a6cbb4.zip
FreeBSD-src-81a3e2b46db5474df3633b850805e5e981a6cbb4.tar.gz
Add a convenience macro for the returns_twice attribute, and apply it to
the prototypes of the appropriate functions (getcontext, savectx, setjmp, sigsetjmp and vfork). MFC after: 2 weeks
Diffstat (limited to 'include')
-rw-r--r--include/setjmp.h6
-rw-r--r--include/unistd.h2
2 files changed, 4 insertions, 4 deletions
diff --git a/include/setjmp.h b/include/setjmp.h
index 49d4ed5..bf03f6f 100644
--- a/include/setjmp.h
+++ b/include/setjmp.h
@@ -46,16 +46,16 @@
__BEGIN_DECLS
#if __BSD_VISIBLE || __XSI_VISIBLE >= 600
void _longjmp(jmp_buf, int) __dead2;
-int _setjmp(jmp_buf);
+int _setjmp(jmp_buf) __returns_twice;
#endif
void longjmp(jmp_buf, int) __dead2;
#if __BSD_VISIBLE
void longjmperror(void);
#endif
-int setjmp(jmp_buf);
+int setjmp(jmp_buf) __returns_twice;
#if __BSD_VISIBLE || __POSIX_VISIBLE || __XSI_VISIBLE
void siglongjmp(sigjmp_buf, int) __dead2;
-int sigsetjmp(sigjmp_buf, int);
+int sigsetjmp(sigjmp_buf, int) __returns_twice;
#endif
__END_DECLS
diff --git a/include/unistd.h b/include/unistd.h
index 90694ed..9b2f2ec 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -479,7 +479,7 @@ char *getwd(char *); /* obsoleted by getcwd() */
useconds_t
ualarm(useconds_t, useconds_t);
int usleep(useconds_t);
-pid_t vfork(void);
+pid_t vfork(void) __returns_twice;
#endif
#if __BSD_VISIBLE
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