1(* Capstone Disassembly Engine 2* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2014 *) 3 4open Printf 5open Capstone 6open Arm 7open Arm_const 8 9 10let print_string_hex comment str = 11 printf "%s" comment; 12 for i = 0 to (Array.length str - 1) do 13 printf "0x%02x " str.(i) 14 done; 15 printf "\n" 16 17 18let _ARM_CODE = "\xED\xFF\xFF\xEB\x04\xe0\x2d\xe5\x00\x00\x00\x00\xe0\x83\x22\xe5\xf1\x02\x03\x0e\x00\x00\xa0\xe3\x02\x30\xc1\xe7\x00\x00\x53\xe3";; 19let _ARM_CODE2 = "\xd1\xe8\x00\xf0\xf0\x24\x04\x07\x1f\x3c\xf2\xc0\x00\x00\x4f\xf0\x00\x01\x46\x6c";; 20let _THUMB_CODE2 = "\x4f\xf0\x00\x01\xbd\xe8\x00\x88\xd1\xe8\x00\xf0";; 21let _THUMB_CODE = "\x70\x47\xeb\x46\x83\xb0\xc9\x68\x1f\xb1";; 22 23 24let all_tests = [ 25 (CS_ARCH_ARM, [CS_MODE_ARM], _ARM_CODE, "ARM"); 26 (CS_ARCH_ARM, [CS_MODE_THUMB], _THUMB_CODE, "Thumb"); 27 (CS_ARCH_ARM, [CS_MODE_THUMB], _ARM_CODE2, "Thumb-mixed"); 28 (CS_ARCH_ARM, [CS_MODE_THUMB], _THUMB_CODE2, "Thumb-2"); 29];; 30 31 32let print_op handle i op = 33 ( match op.value with 34 | ARM_OP_INVALID _ -> (); (* this would never happens *) 35 | ARM_OP_REG reg -> printf "\t\top[%d]: REG = %s\n" i (cs_reg_name handle reg); 36 | ARM_OP_CIMM imm -> printf "\t\top[%d]: C-IMM = %u\n" i imm; 37 | ARM_OP_PIMM imm -> printf "\t\top[%d]: P-IMM = %u\n" i imm; 38 | ARM_OP_IMM imm -> printf "\t\top[%d]: IMM = 0x%x\n" i imm; 39 | ARM_OP_FP fp -> printf "\t\top[%d]: FP = %f\n" i fp; 40 | ARM_OP_MEM mem -> ( printf "\t\top[%d]: MEM\n" i; 41 if mem.base != 0 then 42 printf "\t\t\toperands[%u].mem.base: REG = %s\n" i (cs_reg_name handle mem.base); 43 if mem.index != 0 then 44 printf "\t\t\toperands[%u].mem.index: REG = %s\n" i (cs_reg_name handle mem.index); 45 if mem.scale != 1 then 46 printf "\t\t\toperands[%u].mem.scale: %d\n" i mem.scale; 47 if mem.disp != 0 then 48 printf "\t\t\toperands[%u].mem.disp: 0x%x\n" i mem.disp; 49 if mem.lshift != 0 then 50 printf "\t\t\toperands[%u].mem.lshift: 0x%x\n" i mem.lshift; 51 ); 52 | ARM_OP_SETEND sd -> printf "\t\top[%d]: SETEND = %u\n" i sd; 53 ); 54 55 if op.shift.shift_type != _ARM_SFT_INVALID && op.shift.shift_value > 0 then 56 printf "\t\t\tShift: type = %u, value = %u\n" 57 op.shift.shift_type op.shift.shift_value; 58 ();; 59 60 61let print_detail handle insn = 62 match insn.arch with 63 | CS_INFO_ARM arm -> ( 64 if arm.cc != _ARM_CC_AL && arm.cc != _ARM_CC_INVALID then 65 printf "\tCode condition: %u\n" arm.cc; 66 67 if arm.update_flags then 68 printf "\tUpdate-flags: True\n"; 69 70 if arm.writeback then 71 printf "\tWriteback: True\n"; 72 73 (* print all operands info (type & value) *) 74 if (Array.length arm.operands) > 0 then ( 75 printf "\top_count: %d\n" (Array.length arm.operands); 76 Array.iteri (print_op handle) arm.operands; 77 ); 78 printf "\n"; 79 ); 80 | _ -> (); 81 ;; 82 83 84let print_insn handle insn = 85 printf "0x%x\t%s\t%s\n" insn.address insn.mnemonic insn.op_str; 86 print_detail handle insn 87 88 89let print_arch x = 90 let (arch, mode, code, comment) = x in 91 let handle = cs_open arch mode in 92 let err = cs_option handle CS_OPT_DETAIL _CS_OPT_ON in 93 match err with 94 | _ -> (); 95 let insns = cs_disasm handle code 0x1000L 0L in 96 printf "*************\n"; 97 printf "Platform: %s\n" comment; 98 List.iter (print_insn handle) insns; 99 match cs_close handle with 100 | 0 -> (); 101 | _ -> printf "Failed to close handle"; 102 ;; 103 104 105List.iter print_arch all_tests;; 106