malloc lock helpers

1 files changed, 18 insertions, 0 deletions

diff --git a/lib/libc_r/thread/thread_malloc_lock.c b/lib/libc_r/thread/thread_malloc_lock.c
new file mode 100644
index 00000000000..68f899983cb
--- /dev/null
+++ b/lib/libc_r/thread/thread_malloc_lock.c
@@ -0,0 +1,18 @@
+#include <pthread.h>
+#include "pthread_private.h"
+#include "thread_private.h"
+#include "spinlock.h"
+
+static spinlock_t malloc_lock = _SPINLOCK_INITIALIZER;
+
+void
+_thread_malloc_lock()
+{
+	_SPINLOCK(&malloc_lock);
+}
+
+void
+_thread_malloc_unlock()
+{
+	_SPINUNLOCK(&malloc_lock);
+}