1 files changed, 24 insertions, 0 deletions
diff --git a/lib/asan/lit_tests/malloc_hook.cc b/lib/asan/lit_tests/malloc_hook.cc
new file mode 100644
index 000000000000..6435d105ee26
--- /dev/null
+++ b/lib/asan/lit_tests/malloc_hook.cc
@@ -0,0 +1,24 @@
+// RUN: %clangxx_asan -O2 %s -o %t
+// RUN: %t 2>&1 | FileCheck %s
+#include <stdlib.h>
+#include <unistd.h>
+
+extern "C" {
+// Note: avoid calling functions that allocate memory in malloc/free
+// to avoid infinite recursion.
+void __asan_malloc_hook(void *ptr, size_t sz) {
+  write(1, "MallocHook\n", sizeof("MallocHook\n"));
+}
+void __asan_free_hook(void *ptr) {
+  write(1, "FreeHook\n", sizeof("FreeHook\n"));
+}
+}  // extern "C"
+
+int main() {
+  volatile int *x = new int;
+  // CHECK: MallocHook
+  *x = 0;
+  delete x;
+  // CHECK: FreeHook
+  return 0;
+}