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// Copyright 2013 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_ARM64_DISASM_ARM64_H_
#define V8_ARM64_DISASM_ARM64_H_
#include "src/arm64/assembler-arm64.h"
#include "src/arm64/decoder-arm64.h"
#include "src/arm64/instructions-arm64.h"
#include "src/common/globals.h"
#include "src/utils/utils.h"
namespace v8 {
namespace internal {
class V8_EXPORT_PRIVATE DisassemblingDecoder : public DecoderVisitor {
public:
DisassemblingDecoder();
DisassemblingDecoder(char* text_buffer, int buffer_size);
virtual ~DisassemblingDecoder();
char* GetOutput();
// Declare all Visitor functions.
#define DECLARE(A) void Visit##A(Instruction* instr);
VISITOR_LIST(DECLARE)
#undef DECLARE
protected:
virtual void ProcessOutput(Instruction* instr);
// Default output functions. The functions below implement a default way of
// printing elements in the disassembly. A sub-class can override these to
// customize the disassembly output.
// Prints the name of a register.
virtual void AppendRegisterNameToOutput(const CPURegister& reg);
void Format(Instruction* instr, const char* mnemonic, const char* format);
void Substitute(Instruction* instr, const char* string);
int SubstituteField(Instruction* instr, const char* format);
int SubstituteRegisterField(Instruction* instr, const char* format);
int SubstituteImmediateField(Instruction* instr, const char* format);
int SubstituteLiteralField(Instruction* instr, const char* format);
int SubstituteBitfieldImmediateField(Instruction* instr, const char* format);
int SubstituteShiftField(Instruction* instr, const char* format);
int SubstituteExtendField(Instruction* instr, const char* format);
int SubstituteConditionField(Instruction* instr, const char* format);
int SubstitutePCRelAddressField(Instruction* instr, const char* format);
int SubstituteBranchTargetField(Instruction* instr, const char* format);
int SubstituteLSRegOffsetField(Instruction* instr, const char* format);
int SubstitutePrefetchField(Instruction* instr, const char* format);
int SubstituteBarrierField(Instruction* instr, const char* format);
bool RdIsZROrSP(Instruction* instr) const {
return (instr->Rd() == kZeroRegCode);
}
bool RnIsZROrSP(Instruction* instr) const {
return (instr->Rn() == kZeroRegCode);
}
bool RmIsZROrSP(Instruction* instr) const {
return (instr->Rm() == kZeroRegCode);
}
bool RaIsZROrSP(Instruction* instr) const {
return (instr->Ra() == kZeroRegCode);
}
bool IsMovzMovnImm(unsigned reg_size, uint64_t value);
void ResetOutput();
void AppendToOutput(const char* string, ...);
char* buffer_;
uint32_t buffer_pos_;
uint32_t buffer_size_;
bool own_buffer_;
};
class V8_EXPORT_PRIVATE PrintDisassembler : public DisassemblingDecoder {
public:
explicit PrintDisassembler(FILE* stream) : stream_(stream) { }
~PrintDisassembler() { }
virtual void ProcessOutput(Instruction* instr);
private:
FILE *stream_;
};
} // namespace internal
} // namespace v8
#endif // V8_ARM64_DISASM_ARM64_H_