1 (* Capstone Disassembly Engine 2 * By Nguyen Anh Quynh <aquynh (a] gmail.com>, 2013-2014 *) 3 4 open Printf 5 open Capstone 6 open Arm 7 open Arm_const 8 9 10 let 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 18 let _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";; 19 let _ARM_CODE2 = "\xd1\xe8\x00\xf0\xf0\x24\x04\x07\x1f\x3c\xf2\xc0\x00\x00\x4f\xf0\x00\x01\x46\x6c";; 20 let _THUMB_CODE2 = "\x4f\xf0\x00\x01\xbd\xe8\x00\x88\xd1\xe8\x00\xf0";; 21 let _THUMB_CODE = "\x70\x47\xeb\x46\x83\xb0\xc9\x68\x1f\xb1";; 22 23 24 let 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 32 let 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 ); 50 | ARM_OP_SETEND sd -> printf "\t\top[%d]: SETEND = %u\n" i sd; 51 ); 52 53 if op.shift.shift_type != _ARM_SFT_INVALID && op.shift.shift_value > 0 then 54 printf "\t\t\tShift: type = %u, value = %u\n" 55 op.shift.shift_type op.shift.shift_value; 56 ();; 57 58 59 let print_detail handle insn = 60 match insn.arch with 61 | CS_INFO_ARM arm -> ( 62 if arm.cc != _ARM_CC_AL && arm.cc != _ARM_CC_INVALID then 63 printf "\tCode condition: %u\n" arm.cc; 64 65 if arm.update_flags then 66 printf "\tUpdate-flags: True\n"; 67 68 if arm.writeback then 69 printf "\tWriteback: True\n"; 70 71 (* print all operands info (type & value) *) 72 if (Array.length arm.operands) > 0 then ( 73 printf "\top_count: %d\n" (Array.length arm.operands); 74 Array.iteri (print_op handle) arm.operands; 75 ); 76 printf "\n"; 77 ); 78 | _ -> (); 79 ;; 80 81 82 let print_insn handle insn = 83 printf "0x%x\t%s\t%s\n" insn.address insn.mnemonic insn.op_str; 84 print_detail handle insn 85 86 87 let print_arch x = 88 let (arch, mode, code, comment) = x in 89 let handle = cs_open arch mode in 90 let err = cs_option handle CS_OPT_DETAIL _CS_OPT_ON in 91 match err with 92 | _ -> (); 93 let insns = cs_disasm handle code 0x1000L 0L in 94 printf "*************\n"; 95 printf "Platform: %s\n" comment; 96 List.iter (print_insn handle) insns; 97 match cs_close handle with 98 | 0 -> (); 99 | _ -> printf "Failed to close handle"; 100 ;; 101 102 103 List.iter print_arch all_tests;; 104
