Workaround ASan not knowing about reallocarray.

Ensure we call realloc@plt rather than (as was previously happening)
inlining realloc into reallocarray, which makes the allocation invisible
to ASan.

Bug: http://b/129989984
Test: objdump

(cherry picked from commit 390be50067c03524b420cae83fd97992f26fa754)

Change-Id: I0676b70cb9a7d7323252eabfff055c0e806915ef

1 files changed, 1 insertions, 1 deletions

diff --git a/libc/bionic/malloc_common.cpp b/libc/bionic/malloc_common.cpp
index 60ee138c7..9dc4d12d1 100644
--- a/libc/bionic/malloc_common.cpp
+++ b/libc/bionic/malloc_common.cpp
@@ -155,7 +155,7 @@ extern "C" void* aligned_alloc(size_t alignment, size_t size) {
   return result;
 }
 
-extern "C" void* realloc(void* old_mem, size_t bytes) {
+extern "C" __attribute__((__noinline__)) void* realloc(void* old_mem, size_t bytes) {
   auto dispatch_table = GetDispatchTable();
   if (__predict_false(dispatch_table != nullptr)) {
     return dispatch_table->realloc(old_mem, bytes);