gcc/libsanitizer/hwasan/hwasan_poisoning.cpp
H.J. Lu 90e46074e6 libsanitizer: Merge with upstream
Merged revision: 7704fedfff6ef5676adb6415f3be0ac927d1a746
2021-07-20 14:21:51 -07:00

29 lines
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//===-- hwasan_poisoning.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
//
//===----------------------------------------------------------------------===//
//
// This file is a part of HWAddressSanitizer.
//
//===----------------------------------------------------------------------===//
#include "hwasan_poisoning.h"
#include "hwasan_mapping.h"
#include "interception/interception.h"
#include "sanitizer_common/sanitizer_common.h"
#include "sanitizer_common/sanitizer_linux.h"
namespace __hwasan {
uptr TagMemory(uptr p, uptr size, tag_t tag) {
uptr start = RoundDownTo(p, kShadowAlignment);
uptr end = RoundUpTo(p + size, kShadowAlignment);
return TagMemoryAligned(start, end - start, tag);
}
} // namespace __hwasan