Add _pthread_mutex_init_calloc_cb() to libthr and libkse, so that malloc(3)

(part of libc) can use pthreads mutexes without causing infinite recursion
during initialization.

1 files changed, 4 insertions, 3 deletions

diff --git a/lib/libkse/sys/lock.c b/lib/libkse/sys/lock.c
index 2ac8c0c..7c111bc 100644
--- a/lib/libkse/sys/lock.c
+++ b/lib/libkse/sys/lock.c
@@ -54,11 +54,12 @@ _lock_destroy(struct lock *lck)
 
 int
 _lock_init(struct lock *lck, enum lock_type ltype,
-    lock_handler_t *waitfunc, lock_handler_t *wakeupfunc)
+    lock_handler_t *waitfunc, lock_handler_t *wakeupfunc,
+    void *(calloc_cb)(size_t, size_t))
 {
 	if (lck == NULL)
 		return (-1);
-	else if ((lck->l_head = malloc(sizeof(struct lockreq))) == NULL)
+	else if ((lck->l_head = calloc_cb(1, sizeof(struct lockreq))) == NULL)
 		return (-1);
 	else {
 		lck->l_type = ltype;
@@ -80,7 +81,7 @@ _lock_reinit(struct lock *lck, enum lock_type ltype,
 	if (lck == NULL)
 		return (-1);
 	else if (lck->l_head == NULL)
-		return (_lock_init(lck, ltype, waitfunc, wakeupfunc));
+		return (_lock_init(lck, ltype, waitfunc, wakeupfunc, calloc));
 	else {
 		lck->l_head->lr_locked = 0;
 		lck->l_head->lr_watcher = NULL;