1 files changed, 35 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/msan/msan_allocator.h b/contrib/llvm-project/compiler-rt/lib/msan/msan_allocator.h
new file mode 100644
index 000000000000..109e24dc509a
--- /dev/null
+++ b/contrib/llvm-project/compiler-rt/lib/msan/msan_allocator.h
@@ -0,0 +1,35 @@
+//===-- msan_allocator.h ----------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a part of MemorySanitizer.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MSAN_ALLOCATOR_H
+#define MSAN_ALLOCATOR_H
+
+#include "sanitizer_common/sanitizer_common.h"
+
+namespace __msan {
+
+struct MsanThreadLocalMallocStorage {
+  // Allocator cache contains atomic_uint64_t which must be 8-byte aligned.
+  alignas(8) uptr allocator_cache[96 * (512 * 8 + 16)];  // Opaque.
+  void Init();
+  void CommitBack();
+
+ private:
+  // These objects are allocated via mmap() and are zero-initialized.
+  MsanThreadLocalMallocStorage() {}
+};
+
+void LockAllocator();
+void UnlockAllocator();
+
+} // namespace __msan
+#endif // MSAN_ALLOCATOR_H