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//===-- sanitizer_symbolizer.cc -------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// 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 {
atomic_uintptr_t Symbolizer::symbolizer_;
LowLevelAllocator Symbolizer::symbolizer_allocator_;
Symbolizer *Symbolizer::GetOrNull() {
return reinterpret_cast<Symbolizer *>(
atomic_load(&symbolizer_, memory_order_acquire));
}
Symbolizer *Symbolizer::Get() {
Symbolizer *sym = GetOrNull();
CHECK(sym);
return sym;
}
Symbolizer *Symbolizer::Disable() {
CHECK_EQ(0, atomic_load(&symbolizer_, memory_order_acquire));
Symbolizer *dummy_sym = new(symbolizer_allocator_) Symbolizer;
atomic_store(&symbolizer_, reinterpret_cast<uptr>(dummy_sym),
memory_order_release);
return dummy_sym;
}
} // namespace __sanitizer
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