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// Copyright 2014 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_COMPILER_BACKEND_UNWINDING_INFO_WRITER_H_
#define V8_COMPILER_BACKEND_UNWINDING_INFO_WRITER_H_
#include "src/flags/flags.h"
#if V8_TARGET_ARCH_ARM
#include "src/compiler/backend/arm/unwinding-info-writer-arm.h"
#elif V8_TARGET_ARCH_ARM64
#include "src/compiler/backend/arm64/unwinding-info-writer-arm64.h"
#elif V8_TARGET_ARCH_X64
#include "src/compiler/backend/x64/unwinding-info-writer-x64.h"
#else
// Placeholder for unsupported architectures.
#include "src/base/logging.h"
namespace v8 {
namespace internal {
class EhFrameWriter;
class Zone;
namespace compiler {
class InstructionBlock;
class UnwindingInfoWriter {
public:
explicit UnwindingInfoWriter(Zone* zone) {}
void SetNumberOfInstructionBlocks(int number) {
if (FLAG_perf_prof_unwinding_info) UNIMPLEMENTED();
}
void BeginInstructionBlock(int pc_offset, const InstructionBlock* block) {
if (FLAG_perf_prof_unwinding_info) UNIMPLEMENTED();
}
void EndInstructionBlock(const InstructionBlock* block) {
if (FLAG_perf_prof_unwinding_info) UNIMPLEMENTED();
}
void Finish(int code_size) {}
EhFrameWriter* eh_frame_writer() { return nullptr; }
};
} // namespace compiler
} // namespace internal
} // namespace v8
#endif
#endif // V8_COMPILER_BACKEND_UNWINDING_INFO_WRITER_H_