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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include <assert.h> | 5 #include <assert.h> |
6 #include <stdio.h> | 6 #include <stdio.h> |
7 #include <stdarg.h> | 7 #include <stdarg.h> |
8 #include <string.h> | 8 #include <string.h> |
9 | 9 |
10 #include "src/v8.h" | 10 #include "src/v8.h" |
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1727 GetOutput()); | 1727 GetOutput()); |
1728 } | 1728 } |
1729 | 1729 |
1730 } } // namespace v8::internal | 1730 } } // namespace v8::internal |
1731 | 1731 |
1732 | 1732 |
1733 namespace disasm { | 1733 namespace disasm { |
1734 | 1734 |
1735 | 1735 |
1736 const char* NameConverter::NameOfAddress(byte* addr) const { | 1736 const char* NameConverter::NameOfAddress(byte* addr) const { |
1737 v8::internal::OS::SNPrintF(tmp_buffer_, "%p", addr); | 1737 v8::internal::SNPrintF(tmp_buffer_, "%p", addr); |
1738 return tmp_buffer_.start(); | 1738 return tmp_buffer_.start(); |
1739 } | 1739 } |
1740 | 1740 |
1741 | 1741 |
1742 const char* NameConverter::NameOfConstant(byte* addr) const { | 1742 const char* NameConverter::NameOfConstant(byte* addr) const { |
1743 return NameOfAddress(addr); | 1743 return NameOfAddress(addr); |
1744 } | 1744 } |
1745 | 1745 |
1746 | 1746 |
1747 const char* NameConverter::NameOfCPURegister(int reg) const { | 1747 const char* NameConverter::NameOfCPURegister(int reg) const { |
1748 unsigned ureg = reg; // Avoid warnings about signed/unsigned comparisons. | 1748 unsigned ureg = reg; // Avoid warnings about signed/unsigned comparisons. |
1749 if (ureg >= v8::internal::kNumberOfRegisters) { | 1749 if (ureg >= v8::internal::kNumberOfRegisters) { |
1750 return "noreg"; | 1750 return "noreg"; |
1751 } | 1751 } |
1752 if (ureg == v8::internal::kZeroRegCode) { | 1752 if (ureg == v8::internal::kZeroRegCode) { |
1753 return "xzr"; | 1753 return "xzr"; |
1754 } | 1754 } |
1755 v8::internal::OS::SNPrintF(tmp_buffer_, "x%u", ureg); | 1755 v8::internal::SNPrintF(tmp_buffer_, "x%u", ureg); |
1756 return tmp_buffer_.start(); | 1756 return tmp_buffer_.start(); |
1757 } | 1757 } |
1758 | 1758 |
1759 | 1759 |
1760 const char* NameConverter::NameOfByteCPURegister(int reg) const { | 1760 const char* NameConverter::NameOfByteCPURegister(int reg) const { |
1761 UNREACHABLE(); // ARM64 does not have the concept of a byte register | 1761 UNREACHABLE(); // ARM64 does not have the concept of a byte register |
1762 return "nobytereg"; | 1762 return "nobytereg"; |
1763 } | 1763 } |
1764 | 1764 |
1765 | 1765 |
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1779 //------------------------------------------------------------------------------ | 1779 //------------------------------------------------------------------------------ |
1780 | 1780 |
1781 class BufferDisassembler : public v8::internal::Disassembler { | 1781 class BufferDisassembler : public v8::internal::Disassembler { |
1782 public: | 1782 public: |
1783 explicit BufferDisassembler(v8::internal::Vector<char> out_buffer) | 1783 explicit BufferDisassembler(v8::internal::Vector<char> out_buffer) |
1784 : out_buffer_(out_buffer) { } | 1784 : out_buffer_(out_buffer) { } |
1785 | 1785 |
1786 ~BufferDisassembler() { } | 1786 ~BufferDisassembler() { } |
1787 | 1787 |
1788 virtual void ProcessOutput(v8::internal::Instruction* instr) { | 1788 virtual void ProcessOutput(v8::internal::Instruction* instr) { |
1789 v8::internal::OS::SNPrintF(out_buffer_, "%s", GetOutput()); | 1789 v8::internal::SNPrintF(out_buffer_, "%s", GetOutput()); |
1790 } | 1790 } |
1791 | 1791 |
1792 private: | 1792 private: |
1793 v8::internal::Vector<char> out_buffer_; | 1793 v8::internal::Vector<char> out_buffer_; |
1794 }; | 1794 }; |
1795 | 1795 |
1796 Disassembler::Disassembler(const NameConverter& converter) | 1796 Disassembler::Disassembler(const NameConverter& converter) |
1797 : converter_(converter) {} | 1797 : converter_(converter) {} |
1798 | 1798 |
1799 | 1799 |
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1823 decoder.AppendVisitor(&disasm); | 1823 decoder.AppendVisitor(&disasm); |
1824 | 1824 |
1825 for (byte* pc = start; pc < end; pc += v8::internal::kInstructionSize) { | 1825 for (byte* pc = start; pc < end; pc += v8::internal::kInstructionSize) { |
1826 decoder.Decode(reinterpret_cast<v8::internal::Instruction*>(pc)); | 1826 decoder.Decode(reinterpret_cast<v8::internal::Instruction*>(pc)); |
1827 } | 1827 } |
1828 } | 1828 } |
1829 | 1829 |
1830 } // namespace disasm | 1830 } // namespace disasm |
1831 | 1831 |
1832 #endif // V8_TARGET_ARCH_ARM64 | 1832 #endif // V8_TARGET_ARCH_ARM64 |
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