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117 lines
3.4 KiB
117 lines
3.4 KiB
(* 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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