34913f3beb
Summary: Adds interception of sigprocmask and pthread_sigmask to esan so that the working set tool can prevent SIGSEGV from being blocked. A blocked SIGSEGV results in crashes due to our lazy shadow page allocation scheme. Adds new sanitizer helper functions internal_sigemptyset and internal_sigismember. Adds a test to workingset-signal-posix.cpp. Reviewers: aizatsky Subscribers: vitalybuka, zhaoqin, kcc, eugenis, llvm-commits, kubabrecka Differential Revision: http://reviews.llvm.org/D22063 llvm-svn: 274672
39 lines
1.3 KiB
C++
39 lines
1.3 KiB
C++
//===-- working_set.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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// This file is a part of EfficiencySanitizer, a family of performance tuners.
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//
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// Header for working-set-specific code.
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//===----------------------------------------------------------------------===//
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#ifndef WORKING_SET_H
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#define WORKING_SET_H
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#include "interception/interception.h"
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#include "sanitizer_common/sanitizer_internal_defs.h"
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namespace __esan {
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void initializeWorkingSet();
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void initializeShadowWorkingSet();
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int finalizeWorkingSet();
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void processRangeAccessWorkingSet(uptr PC, uptr Addr, SIZE_T Size,
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bool IsWrite);
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// Platform-dependent.
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void registerMemoryFaultHandler();
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bool processWorkingSetSignal(int SigNum, void (*Handler)(int),
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void (**Result)(int));
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bool processWorkingSetSigaction(int SigNum, const void *Act, void *OldAct);
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bool processWorkingSetSigprocmask(int How, void *Set, void *OldSet);
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} // namespace __esan
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#endif // WORKING_SET_H
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