1 files changed, 9 insertions, 12 deletions
diff --git a/libsanitizer/asan/asan_allocator.h b/libsanitizer/asan/asan_allocator.h
index 1f83dcd6780..763f4a58ef9 100644
--- a/libsanitizer/asan/asan_allocator.h
+++ b/libsanitizer/asan/asan_allocator.h
@@ -33,10 +33,11 @@ void InitializeAllocator();
 class AsanChunkView {
  public:
   explicit AsanChunkView(AsanChunk *chunk) : chunk_(chunk) {}
-  bool IsValid() { return chunk_ != 0; }
-  uptr Beg();       // first byte of user memory.
-  uptr End();       // last byte of user memory.
-  uptr UsedSize();  // size requested by the user.
+  bool IsValid();   // Checks if AsanChunkView points to a valid allocated
+                    // or quarantined chunk.
+  uptr Beg();       // First byte of user memory.
+  uptr End();       // Last byte of user memory.
+  uptr UsedSize();  // Size requested by the user.
   uptr AllocTid();
   uptr FreeTid();
   void GetAllocStack(StackTrace *stack);
@@ -88,16 +89,12 @@ class AsanChunkFifoList: public IntrusiveList<AsanChunk> {
 };
 
 struct AsanThreadLocalMallocStorage {
-  explicit AsanThreadLocalMallocStorage(LinkerInitialized x)
-      { }
-  AsanThreadLocalMallocStorage() {
-    CHECK(REAL(memset));
-    REAL(memset)(this, 0, sizeof(AsanThreadLocalMallocStorage));
-  }
-
   uptr quarantine_cache[16];
   uptr allocator2_cache[96 * (512 * 8 + 16)];  // Opaque.
   void CommitBack();
+ private:
+  // These objects are allocated via mmap() and are zero-initialized.
+  AsanThreadLocalMallocStorage() {}
 };
 
 void *asan_memalign(uptr alignment, uptr size, StackTrace *stack,
@@ -112,7 +109,7 @@ void *asan_pvalloc(uptr size, StackTrace *stack);
 
 int asan_posix_memalign(void **memptr, uptr alignment, uptr size,
                           StackTrace *stack);
-uptr asan_malloc_usable_size(void *ptr, StackTrace *stack);
+uptr asan_malloc_usable_size(void *ptr, uptr pc, uptr bp);
 
 uptr asan_mz_size(const void *ptr);
 void asan_mz_force_lock();