1 files changed, 25 insertions, 15 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/msan/msan_allocator.cpp b/contrib/llvm-project/compiler-rt/lib/msan/msan_allocator.cpp
index 72a7f980d39f..0b2dd2b2f188 100644
--- a/contrib/llvm-project/compiler-rt/lib/msan/msan_allocator.cpp
+++ b/contrib/llvm-project/compiler-rt/lib/msan/msan_allocator.cpp
@@ -178,18 +178,20 @@ void MsanThreadLocalMallocStorage::CommitBack() {
   allocator.DestroyCache(GetAllocatorCache(this));
 }
 
-static void *MsanAllocate(StackTrace *stack, uptr size, uptr alignment,
+static void *MsanAllocate(BufferedStackTrace *stack, uptr size, uptr alignment,
                           bool zeroise) {
-  if (size > max_malloc_size) {
+  if (UNLIKELY(size > max_malloc_size)) {
     if (AllocatorMayReturnNull()) {
       Report("WARNING: MemorySanitizer failed to allocate 0x%zx bytes\n", size);
       return nullptr;
     }
+    GET_FATAL_STACK_TRACE_IF_EMPTY(stack);
     ReportAllocationSizeTooBig(size, max_malloc_size, stack);
   }
   if (UNLIKELY(IsRssLimitExceeded())) {
     if (AllocatorMayReturnNull())
       return nullptr;
+    GET_FATAL_STACK_TRACE_IF_EMPTY(stack);
     ReportRssLimitExceeded(stack);
   }
   MsanThread *t = GetCurrentThread();
@@ -206,6 +208,7 @@ static void *MsanAllocate(StackTrace *stack, uptr size, uptr alignment,
     SetAllocatorOutOfMemory();
     if (AllocatorMayReturnNull())
       return nullptr;
+    GET_FATAL_STACK_TRACE_IF_EMPTY(stack);
     ReportOutOfMemory(size, stack);
   }
   Metadata *meta =
@@ -229,7 +232,7 @@ static void *MsanAllocate(StackTrace *stack, uptr size, uptr alignment,
   return allocated;
 }
 
-void MsanDeallocate(StackTrace *stack, void *p) {
+void MsanDeallocate(BufferedStackTrace *stack, void *p) {
   CHECK(p);
   UnpoisonParam(1);
   RunFreeHooks(p);
@@ -259,8 +262,8 @@ void MsanDeallocate(StackTrace *stack, void *p) {
   }
 }
 
-static void *MsanReallocate(StackTrace *stack, void *old_p, uptr new_size,
-                            uptr alignment) {
+static void *MsanReallocate(BufferedStackTrace *stack, void *old_p,
+                            uptr new_size, uptr alignment) {
   Metadata *meta = reinterpret_cast<Metadata*>(allocator.GetMetaData(old_p));
   uptr old_size = meta->requested_size;
   uptr actually_allocated_size = allocator.GetActuallyAllocatedSize(old_p);
@@ -284,10 +287,11 @@ static void *MsanReallocate(StackTrace *stack, void *old_p, uptr new_size,
   return new_p;
 }
 
-static void *MsanCalloc(StackTrace *stack, uptr nmemb, uptr size) {
+static void *MsanCalloc(BufferedStackTrace *stack, uptr nmemb, uptr size) {
   if (UNLIKELY(CheckForCallocOverflow(size, nmemb))) {
     if (AllocatorMayReturnNull())
       return nullptr;
+    GET_FATAL_STACK_TRACE_IF_EMPTY(stack);
     ReportCallocOverflow(nmemb, size, stack);
   }
   return MsanAllocate(stack, nmemb * size, sizeof(u64), true);
@@ -320,15 +324,15 @@ static uptr AllocationSizeFast(const void *p) {
   return reinterpret_cast<Metadata *>(allocator.GetMetaData(p))->requested_size;
 }
 
-void *msan_malloc(uptr size, StackTrace *stack) {
+void *msan_malloc(uptr size, BufferedStackTrace *stack) {
   return SetErrnoOnNull(MsanAllocate(stack, size, sizeof(u64), false));
 }
 
-void *msan_calloc(uptr nmemb, uptr size, StackTrace *stack) {
+void *msan_calloc(uptr nmemb, uptr size, BufferedStackTrace *stack) {
   return SetErrnoOnNull(MsanCalloc(stack, nmemb, size));
 }
 
-void *msan_realloc(void *ptr, uptr size, StackTrace *stack) {
+void *msan_realloc(void *ptr, uptr size, BufferedStackTrace *stack) {
   if (!ptr)
     return SetErrnoOnNull(MsanAllocate(stack, size, sizeof(u64), false));
   if (size == 0) {
@@ -338,26 +342,29 @@ void *msan_realloc(void *ptr, uptr size, StackTrace *stack) {
   return SetErrnoOnNull(MsanReallocate(stack, ptr, size, sizeof(u64)));
 }
 
-void *msan_reallocarray(void *ptr, uptr nmemb, uptr size, StackTrace *stack) {
+void *msan_reallocarray(void *ptr, uptr nmemb, uptr size,
+                        BufferedStackTrace *stack) {
   if (UNLIKELY(CheckForCallocOverflow(size, nmemb))) {
     errno = errno_ENOMEM;
     if (AllocatorMayReturnNull())
       return nullptr;
+    GET_FATAL_STACK_TRACE_IF_EMPTY(stack);
     ReportReallocArrayOverflow(nmemb, size, stack);
   }
   return msan_realloc(ptr, nmemb * size, stack);
 }
 
-void *msan_valloc(uptr size, StackTrace *stack) {
+void *msan_valloc(uptr size, BufferedStackTrace *stack) {
   return SetErrnoOnNull(MsanAllocate(stack, size, GetPageSizeCached(), false));
 }
 
-void *msan_pvalloc(uptr size, StackTrace *stack) {
+void *msan_pvalloc(uptr size, BufferedStackTrace *stack) {
   uptr PageSize = GetPageSizeCached();
   if (UNLIKELY(CheckForPvallocOverflow(size, PageSize))) {
     errno = errno_ENOMEM;
     if (AllocatorMayReturnNull())
       return nullptr;
+    GET_FATAL_STACK_TRACE_IF_EMPTY(stack);
     ReportPvallocOverflow(size, stack);
   }
   // pvalloc(0) should allocate one page.
@@ -365,31 +372,34 @@ void *msan_pvalloc(uptr size, StackTrace *stack) {
   return SetErrnoOnNull(MsanAllocate(stack, size, PageSize, false));
 }
 
-void *msan_aligned_alloc(uptr alignment, uptr size, StackTrace *stack) {
+void *msan_aligned_alloc(uptr alignment, uptr size, BufferedStackTrace *stack) {
   if (UNLIKELY(!CheckAlignedAllocAlignmentAndSize(alignment, size))) {
     errno = errno_EINVAL;
     if (AllocatorMayReturnNull())
       return nullptr;
+    GET_FATAL_STACK_TRACE_IF_EMPTY(stack);
     ReportInvalidAlignedAllocAlignment(size, alignment, stack);
   }
   return SetErrnoOnNull(MsanAllocate(stack, size, alignment, false));
 }
 
-void *msan_memalign(uptr alignment, uptr size, StackTrace *stack) {
+void *msan_memalign(uptr alignment, uptr size, BufferedStackTrace *stack) {
   if (UNLIKELY(!IsPowerOfTwo(alignment))) {
     errno = errno_EINVAL;
     if (AllocatorMayReturnNull())
       return nullptr;
+    GET_FATAL_STACK_TRACE_IF_EMPTY(stack);
     ReportInvalidAllocationAlignment(alignment, stack);
   }
   return SetErrnoOnNull(MsanAllocate(stack, size, alignment, false));
 }
 
 int msan_posix_memalign(void **memptr, uptr alignment, uptr size,
-                        StackTrace *stack) {
+                        BufferedStackTrace *stack) {
   if (UNLIKELY(!CheckPosixMemalignAlignment(alignment))) {
     if (AllocatorMayReturnNull())
       return errno_EINVAL;
+    GET_FATAL_STACK_TRACE_IF_EMPTY(stack);
     ReportInvalidPosixMemalignAlignment(alignment, stack);
   }
   void *ptr = MsanAllocate(stack, size, alignment, false);