[scudo] [GWP-ASan] Add GWP-ASan variant of scudo benchmarks. am: 6583baa3f2

Original change: https://android-review.googlesource.com/c/platform/external/scudo/+/1705746

Change-Id: Ie1c04cb59d4f0201e1a4a9deb23b86f8a892fdfb

2 files changed, 13 insertions, 5 deletions

diff --git a/standalone/benchmarks/malloc_benchmark.cpp b/standalone/benchmarks/malloc_benchmark.cpp
index ce48dc02f7a..661fff45a8d 100644
--- a/standalone/benchmarks/malloc_benchmark.cpp
+++ b/standalone/benchmarks/malloc_benchmark.cpp
@@ -13,15 +13,22 @@
 #include "benchmark/benchmark.h"
 
 #include <memory>
+#include <vector>
+
+void *CurrentAllocator;
+template <typename Config> void PostInitCallback() {
+  reinterpret_cast<scudo::Allocator<Config> *>(CurrentAllocator)->initGwpAsan();
+}
 
 template <typename Config> static void BM_malloc_free(benchmark::State &State) {
-  using AllocatorT = scudo::Allocator<Config>;
+  using AllocatorT = scudo::Allocator<Config, PostInitCallback<Config>>;
   auto Deleter = [](AllocatorT *A) {
     A->unmapTestOnly();
     delete A;
   };
   std::unique_ptr<AllocatorT, decltype(Deleter)> Allocator(new AllocatorT,
                                                            Deleter);
+  CurrentAllocator = Allocator.get();
   Allocator->reset();
 
   const size_t NBytes = State.range(0);
@@ -55,18 +62,19 @@ BENCHMARK_TEMPLATE(BM_malloc_free, scudo::FuchsiaConfig)
 
 template <typename Config>
 static void BM_malloc_free_loop(benchmark::State &State) {
-  using AllocatorT = scudo::Allocator<Config>;
+  using AllocatorT = scudo::Allocator<Config, PostInitCallback<Config>>;
   auto Deleter = [](AllocatorT *A) {
     A->unmapTestOnly();
     delete A;
   };
   std::unique_ptr<AllocatorT, decltype(Deleter)> Allocator(new AllocatorT,
                                                            Deleter);
+  CurrentAllocator = Allocator.get();
   Allocator->reset();
 
   const size_t NumIters = State.range(0);
   size_t PageSize = scudo::getPageSizeCached();
-  void *Ptrs[NumIters];
+  std::vector<void *> Ptrs(NumIters);
 
   for (auto _ : State) {
     size_t SizeLog2 = 0;
diff --git a/standalone/combined.h b/standalone/combined.h
index 146408a26bf..03a85ec3310 100644
--- a/standalone/combined.h
+++ b/standalone/combined.h
@@ -51,8 +51,7 @@ public:
   typedef typename Params::template TSDRegistryT<ThisT> TSDRegistryT;
 
   void callPostInitCallback() {
-    static pthread_once_t OnceControl = PTHREAD_ONCE_INIT;
-    pthread_once(&OnceControl, PostInitCallback);
+    pthread_once(&PostInitNonce, PostInitCallback);
   }
 
   struct QuarantineCallback {
@@ -952,6 +951,7 @@ private:
   SecondaryT Secondary;
   QuarantineT Quarantine;
   TSDRegistryT TSDRegistry;
+  pthread_once_t PostInitNonce = PTHREAD_ONCE_INIT;
 
 #ifdef GWP_ASAN_HOOKS
   gwp_asan::GuardedPoolAllocator GuardedAlloc;