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fix breakage in cancellation due to signal functions overhaul

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sigaddset was not accepting SIGCANCEL as a valid signal number.
This commit is contained in:
Rich Felker 2011-08-02 19:59:56 -04:00
parent 88c4e72031
commit 344ea14885
1 changed files with 7 additions and 1 deletions
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8
src/thread/cancel_impl.c
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@ -31,6 +31,12 @@ long (__syscall_cp)(long nr, long u, long v, long w, long x, long y, long z)
return r;
}
static void _sigaddset(sigset_t *set, int sig)
{
unsigned s = sig-1;
set->__bits[s/8/sizeof *set->__bits] |= 1UL<<(s&8*sizeof *set->__bits-1);
}
static void cancel_handler(int sig, siginfo_t *si, void *ctx)
{
pthread_t self = __pthread_self();
@ -40,7 +46,7 @@ static void cancel_handler(int sig, siginfo_t *si, void *ctx)
if (!self->cancel || self->canceldisable) return;
sigaddset(&uc->uc_sigmask, SIGCANCEL);
_sigaddset(&uc->uc_sigmask, SIGCANCEL);
if (self->cancelasync || sp == self->cp_sp && ip <= self->cp_ip) {
self->canceldisable = 1;