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On Windows aarch64 and x64 builds, stack walking relies on RtlLookupFunctionEntry. This can lead to deadlock, which we avoid in x64 builds by adding stack walking suppressions. We must do the same in aarch64 builds to avoid the same deadlock situation, but we are missing some stack walk suppression paths. Let's fix that. Differential Revision: https://phabricator.services.mozilla.com/D181435
35 lines
1.1 KiB
C
35 lines
1.1 KiB
C
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_StackWalk_windows_h
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#define mozilla_StackWalk_windows_h
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#include "mozilla/Types.h"
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#if defined(_M_AMD64) || defined(_M_ARM64)
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/**
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* Allow stack walkers to work around the egregious win64 dynamic lookup table
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* list API by locking around SuspendThread to avoid deadlock.
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*
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* See comment in StackWalk.cpp
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*/
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struct MOZ_RAII AutoSuppressStackWalking {
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MFBT_API AutoSuppressStackWalking();
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MFBT_API ~AutoSuppressStackWalking();
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};
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# if defined(IMPL_MFBT)
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void SuppressStackWalking();
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void DesuppressStackWalking();
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# endif // defined(IMPL_MFBT)
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MFBT_API void RegisterJitCodeRegion(uint8_t* aStart, size_t size);
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MFBT_API void UnregisterJitCodeRegion(uint8_t* aStart, size_t size);
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#endif // _M_AMD64 || _M_ARM64
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#endif // mozilla_StackWalk_windows_h
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