62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
//===-- sanitizer_symbolizer.cc -------------------------------------------===//
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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 shared between AddressSanitizer and ThreadSanitizer
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// run-time libraries.
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//===----------------------------------------------------------------------===//
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#include "sanitizer_platform.h"
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#include "sanitizer_internal_defs.h"
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#include "sanitizer_placement_new.h"
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#include "sanitizer_symbolizer.h"
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namespace __sanitizer {
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Symbolizer *Symbolizer::symbolizer_;
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StaticSpinMutex Symbolizer::init_mu_;
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LowLevelAllocator Symbolizer::symbolizer_allocator_;
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Symbolizer *Symbolizer::GetOrNull() {
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SpinMutexLock l(&init_mu_);
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return symbolizer_;
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}
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Symbolizer *Symbolizer::Get() {
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SpinMutexLock l(&init_mu_);
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RAW_CHECK_MSG(symbolizer_ != 0, "Using uninitialized symbolizer!");
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return symbolizer_;
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}
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Symbolizer *Symbolizer::Disable() {
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CHECK_EQ(0, symbolizer_);
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// Initialize a dummy symbolizer.
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symbolizer_ = new(symbolizer_allocator_) Symbolizer;
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return symbolizer_;
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}
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void Symbolizer::AddHooks(Symbolizer::StartSymbolizationHook start_hook,
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Symbolizer::EndSymbolizationHook end_hook) {
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CHECK(start_hook_ == 0 && end_hook_ == 0);
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start_hook_ = start_hook;
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end_hook_ = end_hook;
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}
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Symbolizer::Symbolizer() : start_hook_(0), end_hook_(0) {}
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Symbolizer::SymbolizerScope::SymbolizerScope(const Symbolizer *sym)
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: sym_(sym) {
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if (sym_->start_hook_)
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sym_->start_hook_();
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}
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Symbolizer::SymbolizerScope::~SymbolizerScope() {
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if (sym_->end_hook_)
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sym_->end_hook_();
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}
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} // namespace __sanitizer
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