X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=blobdiff_plain;f=src%2Fthread%2Fpthread_create.c;h=cdf36ff249063bbd6b053ec7247afae3adf29e13;hp=6f1bb0e8172b3c8045b4fa0867071c3118dd1e6c;hb=66def4e776a0c6d68559309aa043163f77b148a5;hpb=fd80cfa00b34ec81b3049b98c66f6a45301ca6c4 diff --git a/src/thread/pthread_create.c b/src/thread/pthread_create.c index 6f1bb0e8..cdf36ff2 100644 --- a/src/thread/pthread_create.c +++ b/src/thread/pthread_create.c @@ -4,6 +4,7 @@ static void dummy_1(pthread_t self) { } weak_alias(dummy_1, __pthread_tsd_run_dtors); +weak_alias(dummy_1, __sigtimer_handler); #ifdef __pthread_unwind_next #undef __pthread_unwind_next @@ -47,13 +48,9 @@ static void docancel(struct pthread *self) static void cancel_handler(int sig, siginfo_t *si, void *ctx) { struct pthread *self = __pthread_self(); - if (!self->cancel) { - if (si->si_code == SI_TIMER && libc.sigtimer) - libc.sigtimer(sig, si, ctx); - return; - } - if (self->canceldisable) return; - if (self->cancelasync || (self->cancelpoint==1 && PC_AT_SYS(ctx))) + if (si->si_code == SI_TIMER) __sigtimer_handler(self); + if (self->cancel && !self->canceldisable && + (self->cancelasync || (self->cancelpoint==1 && PC_AT_SYS(ctx)))) docancel(self); } @@ -83,13 +80,12 @@ static void rsyscall_handler(int sig, siginfo_t *si, void *ctx) { struct pthread *self = __pthread_self(); - if (si->si_code > 0 || si->si_pid != self->pid || - rs.cnt == libc.threads_minus_1) return; + if (!rs.hold || rs.cnt == libc.threads_minus_1) return; /* Threads which have already decremented themselves from the * thread count must not increment rs.cnt or otherwise act. */ if (self->dead) { - __wait(&rs.hold, 0, 1, 1); + sigfillset(&((ucontext_t *)ctx)->uc_sigmask); return; } @@ -121,9 +117,9 @@ static int rsyscall(int nr, long a, long b, long c, long d, long e, long f) rs.arg[0] = a; rs.arg[1] = b; rs.arg[2] = c; rs.arg[3] = d; rs.arg[4] = d; rs.arg[5] = f; - rs.hold = 1; rs.err = 0; rs.cnt = 0; + rs.hold = 1; /* Dispatch signals until all threads respond */ for (i=libc.threads_minus_1; i; i--) @@ -155,13 +151,18 @@ static void init_threads() libc.lockfile = __lockfile; libc.cancelpt = cancelpt; libc.rsyscall = rsyscall; + + sigfillset(&sa.sa_mask); + sa.sa_sigaction = rsyscall_handler; + __libc_sigaction(SIGSYSCALL, &sa, 0); + + sigemptyset(&sa.sa_mask); sa.sa_sigaction = cancel_handler; __libc_sigaction(SIGCANCEL, &sa, 0); + sigaddset(&sa.sa_mask, SIGSYSCALL); sigaddset(&sa.sa_mask, SIGCANCEL); - sa.sa_sigaction = rsyscall_handler; - __libc_sigaction(SIGSYSCALL, &sa, 0); - sigprocmask(SIG_UNBLOCK, &sa.sa_mask, 0); + __libc_sigprocmask(SIG_UNBLOCK, &sa.sa_mask, 0); } static int start(void *p)