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//===-- sanitizer_symbolizer.cc -------------------------------------------===//
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is shared between AddressSanitizer and ThreadSanitizer
// run-time libraries.
//===----------------------------------------------------------------------===//
#include "sanitizer_platform.h"
#include "sanitizer_internal_defs.h"
#include "sanitizer_placement_new.h"
#include "sanitizer_symbolizer.h"
namespace __sanitizer {
Symbolizer *Symbolizer::symbolizer_;
StaticSpinMutex Symbolizer::init_mu_;
LowLevelAllocator Symbolizer::symbolizer_allocator_;
Symbolizer *Symbolizer::GetOrNull() {
SpinMutexLock l(&init_mu_);
return symbolizer_;
}
Symbolizer *Symbolizer::Get() {
SpinMutexLock l(&init_mu_);
RAW_CHECK_MSG(symbolizer_ != 0, "Using uninitialized symbolizer!");
return symbolizer_;
}
Symbolizer *Symbolizer::Disable() {
CHECK_EQ(0, symbolizer_);
// Initialize a dummy symbolizer.
symbolizer_ = new(symbolizer_allocator_) Symbolizer;
return symbolizer_;
}
void Symbolizer::AddHooks(Symbolizer::StartSymbolizationHook start_hook,
Symbolizer::EndSymbolizationHook end_hook) {
CHECK(start_hook_ == 0 && end_hook_ == 0);
start_hook_ = start_hook;
end_hook_ = end_hook;
}
Symbolizer::Symbolizer() : start_hook_(0), end_hook_(0) {}
Symbolizer::SymbolizerScope::SymbolizerScope(const Symbolizer *sym)
: sym_(sym) {
if (sym_->start_hook_)
sym_->start_hook_();
}
Symbolizer::SymbolizerScope::~SymbolizerScope() {
if (sym_->end_hook_)
sym_->end_hook_();
}
} // namespace __sanitizer
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