diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/pthread_sigqueue.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/pthread_sigqueue.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/sysdeps/unix/sysv/linux/pthread_sigqueue.c b/sysdeps/unix/sysv/linux/pthread_sigqueue.c index 7694d5467c..d8061efdba 100644 --- a/sysdeps/unix/sysv/linux/pthread_sigqueue.c +++ b/sysdeps/unix/sysv/linux/pthread_sigqueue.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2009-2016 Free Software Foundation, Inc. +/* Copyright (C) 2009-2018 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2009. @@ -49,27 +49,22 @@ pthread_sigqueue (pthread_t threadid, int signo, const union sigval value) if (signo == SIGCANCEL || signo == SIGTIMER || signo == SIGSETXID) return EINVAL; + pid_t pid = getpid (); + /* Set up the siginfo_t structure. */ siginfo_t info; memset (&info, '\0', sizeof (siginfo_t)); info.si_signo = signo; info.si_code = SI_QUEUE; - info.si_pid = THREAD_GETMEM (THREAD_SELF, pid); + info.si_pid = pid; info.si_uid = getuid (); info.si_value = value; /* 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_sigqueue is not guaranteed to be async-safe. */ - int val = INTERNAL_SYSCALL (rt_tgsigqueueinfo, err, 4, - THREAD_GETMEM (THREAD_SELF, pid), - tid, signo, &info); - + int val = INTERNAL_SYSCALL_CALL (rt_tgsigqueueinfo, err, pid, tid, signo, + &info); return (INTERNAL_SYSCALL_ERROR_P (val, err) ? INTERNAL_SYSCALL_ERRNO (val, err) : 0); #else |