Add weak definitions for wrapped system calls. In general:

	_foo - wrapped system call
	foo - weak definition to _foo

and for cancellation points:

	_foo - wrapped system call
	__foo - enter cancellation point, call _foo(), leave
	        cancellation point
	foo - weak definition to __foo

Change use of global _thread_run to call a function to get the
currently running thread.

Make all pthread_foo functions weak definitions to _pthread_foo,
where _pthread_foo is the implementation.  This allows an application
to provide its own pthread functions.

Provide slightly different versions of pthread_mutex_lock and
pthread_mutex_init so that we can tell the difference between
a libc mutex and an application mutex.  Threads holding mutexes
internal to libc should never be allowed to exit, call signal
handlers, or cancel.

Approved by:	-arch

1 files changed, 1 insertions, 3 deletions

diff --git a/lib/libkse/thread/thr_priority_queue.c b/lib/libkse/thread/thr_priority_queue.c
index 84c3065..55d742b 100644
--- a/lib/libkse/thread/thr_priority_queue.c
+++ b/lib/libkse/thread/thr_priority_queue.c
@@ -34,7 +34,6 @@
 #include <stdlib.h>
 #include <sys/queue.h>
 #include <string.h>
-#ifdef _THREAD_SAFE
 #include <pthread.h>
 #include "pthread_private.h"
 
@@ -71,7 +70,7 @@ static int _pq_active = 0;
 } while (0)
 #define _PQ_ASSERT_PROTECTED(msg)			\
 	PTHREAD_ASSERT((_thread_kern_in_sched != 0) ||	\
-	    (_thread_run->sig_defer_count > 0) ||	\
+	    ((_get_curthread())->sig_defer_count > 0) ||\
 	    (_sig_in_handler != 0), msg);
 
 #else
@@ -336,4 +335,3 @@ _waitq_clearactive(void)
 	_PQ_ASSERT_ACTIVE("_waitq_clearactive: ! pq_active");
 	_PQ_CLEAR_ACTIVE();
 }
-#endif