Imported Upstream version 6.10.0.49

Former-commit-id: 1d6753294b2993e1fbf92de9366bb9544db4189b

external/llvm-project/libcxxabi/src/fallback_malloc.h

@@ -0,0 +1,29 @@
+//===------------------------- fallback_malloc.h --------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef _FALLBACK_MALLOC_H
+#define _FALLBACK_MALLOC_H
+
+#include "__cxxabi_config.h"
+#include <cstddef> // for size_t
+
+namespace __cxxabiv1 {
+
+// Allocate some memory from _somewhere_
+_LIBCXXABI_HIDDEN void * __aligned_malloc_with_fallback(size_t size);
+
+// Allocate and zero-initialize memory from _somewhere_
+_LIBCXXABI_HIDDEN void * __calloc_with_fallback(size_t count, size_t size);
+
+_LIBCXXABI_HIDDEN void __aligned_free_with_fallback(void *ptr);
+_LIBCXXABI_HIDDEN void __free_with_fallback(void *ptr);
+
+} // namespace __cxxabiv1
+
+#endif