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118 lines
3.4 KiB
118 lines
3.4 KiB
3 years ago
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(* Capstone Disassembly Engine
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* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2014 *)
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open Printf
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open Capstone
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open X86
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open X86_const
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let print_string_hex comment str =
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printf "%s" comment;
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for i = 0 to (Array.length str - 1) do
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printf "0x%02x " str.(i)
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done;
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printf "\n"
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let _X86_CODE16 = "\x8d\x4c\x32\x08\x01\xd8\x81\xc6\x34\x12\x00\x00";;
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let _X86_CODE32 = "\x8d\x4c\x32\x08\x01\xd8\x81\xc6\x34\x12\x00\x00";;
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let _X86_CODE64 = "\x55\x48\x8b\x05\xb8\x13\x00\x00";;
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let all_tests = [
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(CS_ARCH_X86, [CS_MODE_16], _X86_CODE16, "X86 16bit (Intel syntax)", 0L);
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(CS_ARCH_X86, [CS_MODE_32], _X86_CODE32, "X86 32bit (ATT syntax)", _CS_OPT_SYNTAX_ATT);
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(CS_ARCH_X86, [CS_MODE_32], _X86_CODE32, "X86 32 (Intel syntax)", 0L);
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(CS_ARCH_X86, [CS_MODE_64], _X86_CODE64, "X86 64 (Intel syntax)", 0L);
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];;
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let print_op handle i op =
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( match op.value with
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| X86_OP_INVALID _ -> (); (* this would never happens *)
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| X86_OP_REG reg -> printf "\t\top[%d]: REG = %s [sz=%d]\n" i (cs_reg_name handle reg) op.size;
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| X86_OP_IMM imm -> printf "\t\top[%d]: IMM = 0x%x [sz=%d]\n" i imm op.size;
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| X86_OP_MEM mem -> ( printf "\t\top[%d]: MEM [sz=%d]\n" i op.size;
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if mem.base != 0 then
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printf "\t\t\toperands[%u].mem.base: REG = %s\n" i (cs_reg_name handle mem.base);
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if mem.index != 0 then
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printf "\t\t\toperands[%u].mem.index: REG = %s\n" i (cs_reg_name handle mem.index);
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if mem.scale != 1 then
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printf "\t\t\toperands[%u].mem.scale: %d\n" i mem.scale;
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if mem.disp != 0 then
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printf "\t\t\toperands[%u].mem.disp: 0x%x\n" i mem.disp;
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);
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);
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();;
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let print_detail handle mode insn =
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match insn.arch with
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| CS_INFO_X86 x86 -> (
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print_string_hex "\tPrefix: " x86.prefix;
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(* print instruction's opcode *)
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print_string_hex "\tOpcode: " x86.opcode;
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(* print operand's size, address size, displacement size & immediate size *)
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printf "\taddr_size: %u\n" x86.addr_size;
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(* print modRM byte *)
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printf "\tmodrm: 0x%x\n" x86.modrm;
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(* print displacement value *)
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if x86.disp != 0 then
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printf "\tdisp: 0x%x\n" x86.disp;
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(* SIB is invalid in 16-bit mode *)
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if not (List.mem CS_MODE_16 mode) then (
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(* print SIB byte *)
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printf "\tsib: 0x%x\n" x86.sib;
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(* print sib index/scale/base (if applicable) *)
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if x86.sib_index != _X86_REG_INVALID then
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printf "\tsib_index: %s, sib_scale: %u, sib_base: %s\n"
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(cs_reg_name handle x86.sib_index)
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x86.sib_scale
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(cs_reg_name handle x86.sib_base);
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);
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(* print all operands info (type & value) *)
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if (Array.length x86.operands) > 0 then (
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printf "\top_count: %d\n" (Array.length x86.operands);
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Array.iteri (print_op handle) x86.operands;
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);
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printf "\n";
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);
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| _ -> ();
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;;
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let print_insn handle mode insn =
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printf "0x%x\t%s\t%s\n" insn.address insn.mnemonic insn.op_str;
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print_detail handle mode insn
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let print_arch x =
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let (arch, mode, code, comment, syntax) = x in
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let handle = cs_open arch mode in (
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if syntax != 0L then (
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let err = cs_option handle CS_OPT_SYNTAX syntax in
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match err with
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| _ -> ();
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);
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let err = cs_option handle CS_OPT_DETAIL _CS_OPT_ON in
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match err with
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| _ -> ();
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let insns = cs_disasm handle code 0x1000L 0L in (
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printf "*************\n";
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printf "Platform: %s\n" comment;
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List.iter (print_insn handle mode) insns;
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);
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match cs_close handle with
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| 0 -> ();
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| _ -> printf "Failed to close handle";
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);;
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List.iter print_arch all_tests;;
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