Creating branches/google/stable and tags/google/stable/2019-05-14 from r360103google/stable

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/branches/google/stable@360714 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 44 insertions, 0 deletions

diff --git a/lib/hwasan/hwasan_memintrinsics.cpp b/lib/hwasan/hwasan_memintrinsics.cpp
new file mode 100644
index 000000000..e82d77a1b
--- /dev/null
+++ b/lib/hwasan/hwasan_memintrinsics.cpp
@@ -0,0 +1,44 @@
+//===-- hwasan_memintrinsics.cpp --------------------------------*- 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
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file is a part of HWAddressSanitizer and contains HWASAN versions of
+/// memset, memcpy and memmove
+///
+//===----------------------------------------------------------------------===//
+
+#include <string.h>
+#include "hwasan.h"
+#include "hwasan_checks.h"
+#include "hwasan_flags.h"
+#include "hwasan_interface_internal.h"
+#include "sanitizer_common/sanitizer_libc.h"
+
+using namespace __hwasan;
+
+void *__hwasan_memset(void *block, int c, uptr size) {
+  CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
+      reinterpret_cast<uptr>(block), size);
+  return memset(UntagPtr(block), c, size);
+}
+
+void *__hwasan_memcpy(void *to, const void *from, uptr size) {
+  CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
+      reinterpret_cast<uptr>(to), size);
+  CheckAddressSized<ErrorAction::Recover, AccessType::Load>(
+      reinterpret_cast<uptr>(from), size);
+  return memcpy(UntagPtr(to), UntagPtr(from), size);
+}
+
+void *__hwasan_memmove(void *to, const void *from, uptr size) {
+  CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
+      reinterpret_cast<uptr>(to), size);
+  CheckAddressSized<ErrorAction::Recover, AccessType::Load>(
+      reinterpret_cast<uptr>(from), size);
+  return memmove(UntagPtr(to), UntagPtr(from), size);
+}