eliminate use of cached pid from thread structure

[musl] / src / thread / cancel_impl.c

diff --git a/src/thread/cancel_impl.c b/src/thread/cancel_impl.c
index c835813..069b279 100644 (file)
--- a/src/thread/cancel_impl.c
+++ b/src/thread/cancel_impl.c
@@ -20,7 +20,7 @@ long (__syscall_cp)(syscall_arg_t nr,
        pthread_t self;
        long r;
 
-       if (!libc.main_thread || (self = __pthread_self())->canceldisable)
+       if (!libc.has_thread_pointer || (self = __pthread_self())->canceldisable)
                return __syscall(nr, u, v, w, x, y, z);
 
        r = __syscall_cp_asm(&self->cancel, nr, u, v, w, x, y, z);
@@ -52,12 +52,13 @@ static void cancel_handler(int sig, siginfo_t *si, void *ctx)
                __cancel();
        }
 
-       __syscall(SYS_tgkill, self->pid, self->tid, SIGCANCEL);
+       __syscall(SYS_tkill, self->tid, SIGCANCEL);
 }
 
 void __testcancel()
 {
-       pthread_t self = pthread_self();
+       if (!libc.has_thread_pointer) return;
+       pthread_t self = __pthread_self();
        if (self->cancel && !self->canceldisable)
                __cancel();
 }