synccall signal handler need not handle dead threads anymore

[musl] / src / thread / synccall.c

diff --git a/src/thread/synccall.c b/src/thread/synccall.c
index 2b7eac2..706c8e7 100644 (file)
--- a/src/thread/synccall.c
+++ b/src/thread/synccall.c
@@ -1,5 +1,6 @@
 #include "pthread_impl.h"
 #include <semaphore.h>
+#include <string.h>
 
 static struct chain {
        struct chain *next;
@@ -20,15 +21,6 @@ static void handler(int sig, siginfo_t *si, void *ctx)
 
        sigqueue(self->pid, SIGSYNCCALL, (union sigval){0});
 
-       /* Threads which have already decremented themselves from the
-        * thread count must not act. Block further receipt of signals
-        * and return. */
-       if (self->dead) {
-               memset(&((ucontext_t *)ctx)->uc_sigmask, -1, 8);
-               errno = old_errno;
-               return;
-       }
-
        sem_init(&ch.sem, 0, 0);
        sem_init(&ch.sem2, 0, 0);
 
@@ -61,7 +53,7 @@ void __synccall(void (*func)(void *), void *ctx)
        __inhibit_ptc();
 
        __syscall(SYS_rt_sigprocmask, SIG_BLOCK, SIGALL_SET,
-               &oldmask, __SYSCALL_SSLEN);
+               &oldmask, _NSIG/8);
 
        sem_init(&chaindone, 0, 0);
        sem_init(&chainlock, 0, 1);
@@ -94,7 +86,7 @@ void __synccall(void (*func)(void *), void *ctx)
        __libc_sigaction(SIGSYNCCALL, &sa, 0);
 
        __syscall(SYS_rt_sigprocmask, SIG_SETMASK,
-               &oldmask, 0, __SYSCALL_SSLEN);
+               &oldmask, 0, _NSIG/8);
 
        __release_ptc();
 }