diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/pthread_kill.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/pthread_kill.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/sysdeps/unix/sysv/linux/pthread_kill.c b/sysdeps/unix/sysv/linux/pthread_kill.c index bcb3009675..3a6171b815 100644 --- a/sysdeps/unix/sysv/linux/pthread_kill.c +++ b/sysdeps/unix/sysv/linux/pthread_kill.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2002-2016 Free Software Foundation, Inc. +/* Copyright (C) 2002-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. @@ -21,6 +21,7 @@ #include <pthreadP.h> #include <tls.h> #include <sysdep.h> +#include <unistd.h> int @@ -49,15 +50,9 @@ __pthread_kill (pthread_t threadid, int signo) /* We have a special syscall to do the work. */ INTERNAL_SYSCALL_DECL (err); - /* One comment: The PID field in the TCB can temporarily be changed - (in fork). But this must not affect this code here. Since this - function would have to be called while the thread is executing - fork, it would have to happen in a signal handler. But this is - no allowed, pthread_kill is not guaranteed to be async-safe. */ - int val; - val = INTERNAL_SYSCALL (tgkill, err, 3, THREAD_GETMEM (THREAD_SELF, pid), - tid, signo); + pid_t pid = __getpid (); + int val = INTERNAL_SYSCALL_CALL (tgkill, err, pid, tid, signo); return (INTERNAL_SYSCALL_ERROR_P (val, err) ? INTERNAL_SYSCALL_ERRNO (val, err) : 0); } |