Implement standalone lsan interceptors for OS X

Summary:
Mimicks the existing tsan and asan implementations of
Darwin interception.

Reviewers: kubamracek, kcc, glider

Subscribers: llvm-commits, mgorny

Differential Revision: https://reviews.llvm.org/D31889

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@299979 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 11 insertions, 0 deletions

diff --git a/lib/lsan/lsan_allocator.h b/lib/lsan/lsan_allocator.h
index bd19211c4..e5def17d4 100644
--- a/lib/lsan/lsan_allocator.h
+++ b/lib/lsan/lsan_allocator.h
@@ -36,6 +36,8 @@ void GetAllocatorCacheRange(uptr *begin, uptr *end);
 void AllocatorThreadFinish();
 void InitializeAllocator();
 
+const bool kAlwaysClearMemory = true;
+
 struct ChunkMetadata {
   u8 allocated : 8;  // Must be first.
   ChunkTag tag : 2;
@@ -72,6 +74,15 @@ typedef SizeClassAllocator64<AP64> PrimaryAllocator;
 typedef SizeClassAllocatorLocalCache<PrimaryAllocator> AllocatorCache;
 
 AllocatorCache *GetAllocatorCache();
+
+void *lsan_memalign(uptr alignment, uptr size, const StackTrace &stack);
+void *lsan_malloc(uptr size, const StackTrace &stack);
+void lsan_free(void *p);
+void *lsan_realloc(void *p, uptr size, const StackTrace &stack);
+void *lsan_calloc(uptr nmemb, uptr size, const StackTrace &stack);
+void *lsan_valloc(uptr size, const StackTrace &stack);
+uptr lsan_mz_size(const void *p);
+
 }  // namespace __lsan
 
 #endif  // LSAN_ALLOCATOR_H