mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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77 lines
2.8 KiB
C++
77 lines
2.8 KiB
C++
/*
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* Copyright (C) 2013 Apple Inc. All rights reserved.
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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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#include "Disassembler.h"
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#if USE(ARM_LLVM_DISASSEMBLER)
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#include "MacroAssemblerCodeRef.h"
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#include <llvm-c/Disassembler.h>
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#include <llvm-c/Target.h>
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namespace JSC {
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bool tryToDisassemble(const MacroAssemblerCodePtr& codePtr, size_t size, const char* prefix, PrintStream& out)
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{
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LLVMInitializeAllTargetInfos();
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LLVMInitializeAllTargetMCs();
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LLVMInitializeAllDisassemblers();
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const char* triple = "armv7-unknown-linux-gnueabihf";
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LLVMDisasmContextRef disassemblyContext = LLVMCreateDisasm(triple, 0, 0, 0, 0);
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RELEASE_ASSERT(disassemblyContext);
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char pcString[20];
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char instructionString[100];
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uint8_t* pc = static_cast<uint8_t*>(codePtr.executableAddress());
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uint8_t* end = pc + size;
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while (pc < end) {
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snprintf(
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pcString, sizeof(pcString), "0x%lx",
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static_cast<unsigned long>(bitwise_cast<uintptr_t>(pc)));
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size_t instructionSize = LLVMDisasmInstruction(
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disassemblyContext, pc, end - pc, bitwise_cast<uintptr_t>(pc),
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instructionString, sizeof(instructionString));
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if (!instructionSize)
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snprintf(instructionString, sizeof(instructionString), "unknown instruction");
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out.printf("%s%16s: [0x%08lx] %s\n", prefix, pcString, *(reinterpret_cast<unsigned long*>(pc)), instructionString);
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pc += 4;
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}
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LLVMDisasmDispose(disassemblyContext);
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return true;
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}
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} // namespace JSC
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#endif // USE(ARM_LLVM_DISASSEMBLER)
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