[Sanitizers] ASan/MSan/LSan allocators set errno on failure.

Summary:
ASan/MSan/LSan allocators set errno on allocation failures according to
malloc/calloc/etc. expected behavior.

MSan allocator was refactored a bit to make its structure more similar
with other allocators.

Also switch Scudo allocator to the internal errno definitions.

TSan allocator changes will follow.

Reviewers: eugenis

Subscribers: llvm-commits, kubamracek

Differential Revision: https://reviews.llvm.org/D35275

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@308344 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 11 insertions, 3 deletions

diff --git a/lib/msan/msan.h b/lib/msan/msan.h
index 0709260ee..fa9c15b88 100644
--- a/lib/msan/msan.h
+++ b/lib/msan/msan.h
@@ -280,10 +280,18 @@ void InitializeInterceptors();
 
 void MsanAllocatorInit();
 void MsanAllocatorThreadFinish();
-void *MsanCalloc(StackTrace *stack, uptr nmemb, uptr size);
-void *MsanReallocate(StackTrace *stack, void *oldp, uptr size,
-                     uptr alignment, bool zeroise);
 void MsanDeallocate(StackTrace *stack, void *ptr);
+
+void *msan_malloc(uptr size, StackTrace *stack);
+void *msan_calloc(uptr nmemb, uptr size, StackTrace *stack);
+void *msan_realloc(void *ptr, uptr size, StackTrace *stack);
+void *msan_valloc(uptr size, StackTrace *stack);
+void *msan_pvalloc(uptr size, StackTrace *stack);
+void *msan_aligned_alloc(uptr alignment, uptr size, StackTrace *stack);
+void *msan_memalign(uptr alignment, uptr size, StackTrace *stack);
+int msan_posix_memalign(void **memptr, uptr alignment, uptr size,
+                        StackTrace *stack);
+
 void InstallTrapHandler();
 void InstallAtExitHandler();