1 files changed, 74 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/hwasan/hwasan_memintrinsics.cpp b/contrib/llvm-project/compiler-rt/lib/hwasan/hwasan_memintrinsics.cpp
new file mode 100644
index 000000000000..16d6f9085924
--- /dev/null
+++ b/contrib/llvm-project/compiler-rt/lib/hwasan/hwasan_memintrinsics.cpp
@@ -0,0 +1,74 @@
+//===-- 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(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(to, 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(to, from, size);
+}
+
+void *__hwasan_memset_match_all(void *block, int c, uptr size,
+                                u8 match_all_tag) {
+  if (GetTagFromPointer(reinterpret_cast<uptr>(block)) != match_all_tag)
+    CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
+        reinterpret_cast<uptr>(block), size);
+  return memset(block, c, size);
+}
+
+void *__hwasan_memcpy_match_all(void *to, const void *from, uptr size,
+                                u8 match_all_tag) {
+  if (GetTagFromPointer(reinterpret_cast<uptr>(to)) != match_all_tag)
+    CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
+        reinterpret_cast<uptr>(to), size);
+  if (GetTagFromPointer(reinterpret_cast<uptr>(from)) != match_all_tag)
+    CheckAddressSized<ErrorAction::Recover, AccessType::Load>(
+        reinterpret_cast<uptr>(from), size);
+  return memcpy(to, from, size);
+}
+
+void *__hwasan_memmove_match_all(void *to, const void *from, uptr size,
+                                 u8 match_all_tag) {
+  if (GetTagFromPointer(reinterpret_cast<uptr>(to)) != match_all_tag)
+    CheckAddressSized<ErrorAction::Recover, AccessType::Store>(
+        reinterpret_cast<uptr>(to), size);
+  if (GetTagFromPointer(reinterpret_cast<uptr>(from)) != match_all_tag)
+    CheckAddressSized<ErrorAction::Recover, AccessType::Load>(
+        reinterpret_cast<uptr>(from), size);
+  return memmove(to, from, size);
+}