1 files changed, 26 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/libpthread/pthread_sys_alloc.c b/mdk-stage1/dietlibc/libpthread/pthread_sys_alloc.c
new file mode 100644
index 000000000..9f7d23d79
--- /dev/null
+++ b/mdk-stage1/dietlibc/libpthread/pthread_sys_alloc.c
@@ -0,0 +1,26 @@
+#include <unistd.h>
+
+#include <pthread.h>
+#include "thread_internal.h"
+
+static pthread_mutex_t mutex_alloc = PTHREAD_MUTEX_INITIALIZER;
+
+void free(void *ptr)
+{
+  __NO_ASYNC_CANCEL_BEGIN;
+  pthread_mutex_lock(&mutex_alloc);
+  __libc_free(ptr);
+  pthread_mutex_unlock(&mutex_alloc);
+  __NO_ASYNC_CANCEL_END;
+}
+
+void *malloc(size_t size)
+{
+  register void *ret;
+  __NO_ASYNC_CANCEL_BEGIN;
+  pthread_mutex_lock(&mutex_alloc);
+  ret=__libc_malloc(size);
+  pthread_mutex_unlock(&mutex_alloc);
+  __NO_ASYNC_CANCEL_END;
+  return ret;
+}