mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-08 09:51:46 +00:00
84 lines
3.0 KiB
C++
84 lines
3.0 KiB
C++
/*
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* Copyright (C) 2018 Yusuke Suzuki <utatane.tea@gmail.com>.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "config.h"
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#if ENABLE(DISASSEMBLER) && USE(CAPSTONE)
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#include "MacroAssemblerCodeRef.h"
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#include "Options.h"
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#include <capstone/capstone.h>
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namespace JSC {
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bool tryToDisassemble(const MacroAssemblerCodePtr<DisassemblyPtrTag>& codePtr, size_t size, const char* prefix, PrintStream& out)
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{
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csh handle;
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cs_insn* instructions;
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#if CPU(X86)
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if (cs_open(CS_ARCH_X86, CS_MODE_32, &handle) != CS_ERR_OK)
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return false;
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#elif CPU(X86_64)
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if (cs_open(CS_ARCH_X86, CS_MODE_64, &handle) != CS_ERR_OK)
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return false;
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#elif CPU(ARM_THUMB2)
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if (cs_open(CS_ARCH_ARM, CS_MODE_THUMB, &handle) != CS_ERR_OK)
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return false;
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#elif CPU(ARM64)
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if (cs_open(CS_ARCH_ARM64, CS_MODE_ARM, &handle) != CS_ERR_OK)
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return false;
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#elif CPU(MIPS)
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if (cs_open(CS_ARCH_MIPS, CS_MODE_MIPS32, &handle) != CS_ERR_OK)
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return false;
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#else
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return false;
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#endif
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#if CPU(X86) || CPU(X86_64)
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if (cs_option(handle, CS_OPT_SYNTAX, CS_OPT_SYNTAX_ATT) != CS_ERR_OK) {
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cs_close(&handle);
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return false;
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}
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#endif
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size_t count = cs_disasm(handle, codePtr.dataLocation<unsigned char*>(), size, codePtr.dataLocation<uintptr_t>(), 0, &instructions);
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if (count > 0) {
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for (size_t i = 0; i < count; ++i) {
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auto& instruction = instructions[i];
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char pcString[20];
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snprintf(pcString, sizeof(pcString), "0x%llx", static_cast<unsigned long long>(instruction.address));
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out.printf("%s%16s: %s %s\n", prefix, pcString, instruction.mnemonic, instruction.op_str);
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}
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cs_free(instructions, count);
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}
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cs_close(&handle);
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return true;
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}
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} // namespace JSC
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#endif // ENABLE(DISASSEMBLER) && USE(CAPSTONE)
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