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authorRich Felker <dalias@aerifal.cx>2012-09-06 23:34:10 -0400
committerRich Felker <dalias@aerifal.cx>2012-09-06 23:34:10 -0400
commit0c05bd3a9c165cf2f0b9d6fa23a1f96532ddcdb3 (patch)
tree124c1d65e338abece7cf55c95cbc8195be94fe2f /src/unistd
parent453059571c9dc84dd168631eced25ec2d7afd98e (diff)
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further use of _Noreturn, for non-plain-C functions
note that POSIX does not specify these functions as _Noreturn, because POSIX is aligned with C99, not the new C11 standard. when POSIX is eventually updated to C11, it will almost surely give these functions the _Noreturn attribute. for now, the actual _Noreturn keyword is not used anyway when compiling with a c99 compiler, which is what POSIX requires; the GCC __attribute__ is used instead if it's available, however. in a few places, I've added infinite for loops at the end of _Noreturn functions to silence compiler warnings. presumably __buildin_unreachable could achieve the same thing, but it would only work on newer GCCs and would not be portable. the loops should have near-zero code size cost anyway. like the previous _Noreturn commit, this one is based on patches contributed by philomath.
Diffstat (limited to 'src/unistd')
-rw-r--r--src/unistd/_exit.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/unistd/_exit.c b/src/unistd/_exit.c
index d2e84c4c..76994823 100644
--- a/src/unistd/_exit.c
+++ b/src/unistd/_exit.c
@@ -1,7 +1,7 @@
#include <unistd.h>
#include <stdlib.h>
-void _exit(int status)
+_Noreturn void _exit(int status)
{
_Exit(status);
}