[Patch libgcc AArch64 12/17] Enable hfmode soft-float conversions and truncations
[official-gcc.git] / libiberty / sigsetmask.c
blobf7a24246d1fdb15eacb414c35a6cdd98d95e6c4b
1 /* Version of sigsetmask.c
2 Written by Steve Chamberlain (sac@cygnus.com).
3 Contributed by Cygnus Support.
4 This file is in the public doamin. */
6 /*
8 @deftypefn Supplemental int sigsetmask (int @var{set})
10 Sets the signal mask to the one provided in @var{set} and returns
11 the old mask (which, for libiberty's implementation, will always
12 be the value @code{1}).
14 @end deftypefn
18 #include <ansidecl.h>
19 /* Including <sys/types.h> seems to be needed by ISC. */
20 #include <sys/types.h>
21 #include <signal.h>
23 extern void abort (void) ATTRIBUTE_NORETURN;
25 #ifdef SIG_SETMASK
26 int
27 sigsetmask (int set)
29 sigset_t new_sig;
30 sigset_t old_sig;
32 sigemptyset (&new_sig);
33 if (set != 0) {
34 abort(); /* FIXME, we don't know how to translate old mask to new */
36 sigprocmask(SIG_SETMASK, &new_sig, &old_sig);
37 return 1; /* FIXME, we always return 1 as old value. */
39 #endif