From 74ebed9424bafa673c7f646b48f845cf035c6a71 Mon Sep 17 00:00:00 2001 From: John Birrell Date: Tue, 9 Jun 1998 23:08:41 +0000 Subject: POSIX says that pthread_exit() is not allowed to be called from a cleanup destructor, so trap this case to prevent me from being being burnt again by applications that try to do this. With this change, an application (like one using a mis-configured ACE) will exit the process after displaying a message quoting the POSIX section that the application has violated. --- lib/libpthread/thread/thr_exit.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'lib/libpthread') diff --git a/lib/libpthread/thread/thr_exit.c b/lib/libpthread/thread/thr_exit.c index 4bc7da90bf1f..0083f2b01694 100644 --- a/lib/libpthread/thread/thr_exit.c +++ b/lib/libpthread/thread/thr_exit.c @@ -102,6 +102,16 @@ pthread_exit(void *status) long l; pthread_t pthread; + /* Check if this thread is already in the process of exiting: */ + if ((_thread_run->flags & PTHREAD_EXITING) != 0) { + char msg[128]; + snprintf(msg,"Thread %p has called pthread_exit() from a destructor. POSIX 1003.1 1996 s16.2.5.2 does not allow this!",_thread_run); + PANIC(msg); + } + + /* Flag this thread as exiting: */ + _thread_run->flags |= PTHREAD_EXITING; + /* Save the return value: */ _thread_run->ret = status; -- cgit v1.2.3