82 lines
3.2 KiB
C
82 lines
3.2 KiB
C
/***************************************************************************************************
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Zyan Disassembler Library (Zydis)
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Original Author : Florian Bernd, Joel Hoener
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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***************************************************************************************************/
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/**
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* @file
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* Demonstrates disassembling using the decoder and formatter API.
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*
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* Compared to the disassemble API, they are a bit more complicated to use, but provide much more
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* control about the decoding and formatting process.
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*/
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#include <stdio.h>
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#include <inttypes.h>
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#include <Zydis/Zydis.h>
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int main()
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{
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ZyanU8 data[] =
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{
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0x51, 0x8D, 0x45, 0xFF, 0x50, 0xFF, 0x75, 0x0C, 0xFF, 0x75,
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0x08, 0xFF, 0x15, 0xA0, 0xA5, 0x48, 0x76, 0x85, 0xC0, 0x0F,
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0x88, 0xFC, 0xDA, 0x02, 0x00
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};
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// Initialize decoder context
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ZydisDecoder decoder;
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ZydisDecoderInit(&decoder, ZYDIS_MACHINE_MODE_LONG_64, ZYDIS_STACK_WIDTH_64);
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// Initialize formatter. Only required when you actually plan to do instruction
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// formatting ("disassembling"), like we do here
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ZydisFormatter formatter;
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ZydisFormatterInit(&formatter, ZYDIS_FORMATTER_STYLE_INTEL);
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// Loop over the instructions in our buffer.
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// The runtime-address (instruction pointer) is chosen arbitrary here in order to better
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// visualize relative addressing
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ZyanU64 runtime_address = 0x007FFFFFFF400000;
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ZyanUSize offset = 0;
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const ZyanUSize length = sizeof(data);
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ZydisDecodedInstruction instruction;
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ZydisDecodedOperand operands[ZYDIS_MAX_OPERAND_COUNT];
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while (ZYAN_SUCCESS(ZydisDecoderDecodeFull(&decoder, data + offset, length - offset,
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&instruction, operands)))
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{
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// Print current instruction pointer.
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printf("%016" PRIX64 " ", runtime_address);
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// Format & print the binary instruction structure to human-readable format
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char buffer[256];
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ZydisFormatterFormatInstruction(&formatter, &instruction, operands,
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instruction.operand_count_visible, buffer, sizeof(buffer), runtime_address, ZYAN_NULL);
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puts(buffer);
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offset += instruction.length;
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runtime_address += instruction.length;
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}
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return 0;
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}
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