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llvm-project/compiler-rt/lib/asan/asan_premap_shadow.h

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[asan] Use dynamic shadow on 32-bit Android, try 2. Summary: This change reverts r318575 and changes FindDynamicShadowStart() to keep the memory range it found mapped PROT_NONE to make sure it is not reused. We also skip MemoryRangeIsAvailable() check, because it is (a) unnecessary, and (b) would fail anyway. Reviewers: pcc, vitalybuka, kcc Subscribers: srhines, kubamracek, mgorny, llvm-commits, hiraditya Differential Revision: https://reviews.llvm.org/D40203 llvm-svn: 318666
2017-11-21 01:41:57 +08:00
//===-- asan_mapping.h ------------------------------------------*- C++ -*-===//
//
Update the file headers across all of the LLVM projects in the monorepo to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
2019-01-19 16:50:56 +08:00
// 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
[asan] Use dynamic shadow on 32-bit Android, try 2. Summary: This change reverts r318575 and changes FindDynamicShadowStart() to keep the memory range it found mapped PROT_NONE to make sure it is not reused. We also skip MemoryRangeIsAvailable() check, because it is (a) unnecessary, and (b) would fail anyway. Reviewers: pcc, vitalybuka, kcc Subscribers: srhines, kubamracek, mgorny, llvm-commits, hiraditya Differential Revision: https://reviews.llvm.org/D40203 llvm-svn: 318666
2017-11-21 01:41:57 +08:00
//
//===----------------------------------------------------------------------===//
//
// This file is a part of AddressSanitizer, an address sanity checker.
//
// Premap shadow range with an ifunc resolver.
//===----------------------------------------------------------------------===//
#ifndef ASAN_PREMAP_SHADOW_H
#define ASAN_PREMAP_SHADOW_H
#if ASAN_PREMAP_SHADOW
namespace __asan {
// Conservative upper limit.
uptr PremapShadowSize();
bool PremapShadowFailed();
}
#endif
extern "C" INTERFACE_ATTRIBUTE void __asan_shadow();
extern "C" decltype(__asan_shadow)* __asan_premap_shadow();
#endif // ASAN_PREMAP_SHADOW_H