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bb91e02efd
Chained origins make plain memory stores async-signal-unsafe. We already disable it inside signal handlers. This change grabs all origin-related locks before fork() and releases them after fork() to avoid a deadlock in the child process. llvm-svn: 217140
30 lines
938 B
C++
30 lines
938 B
C++
//===-- msan_chained_origin_depot.h --------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// A storage for chained origins.
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//===----------------------------------------------------------------------===//
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#ifndef MSAN_CHAINED_ORIGIN_DEPOT_H
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#define MSAN_CHAINED_ORIGIN_DEPOT_H
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#include "sanitizer_common/sanitizer_common.h"
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namespace __msan {
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StackDepotStats *ChainedOriginDepotGetStats();
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bool ChainedOriginDepotPut(u32 here_id, u32 prev_id, u32 *new_id);
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// Retrieves a stored stack trace by the id.
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u32 ChainedOriginDepotGet(u32 id, u32 *other);
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void ChainedOriginDepotLockAll();
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void ChainedOriginDepotUnlockAll();
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} // namespace __msan
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#endif // MSAN_CHAINED_ORIGIN_DEPOT_H
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