Nguyen Anh Quynh | c80d840 | 2014-05-26 23:02:48 +0800 | [diff] [blame] | 1 | /* Capstone Disassembler Engine */ |
| 2 | /* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2014 */ |
| 3 | |
| 4 | #include <stdio.h> |
| 5 | #include <inttypes.h> |
| 6 | |
| 7 | #include <capstone.h> |
| 8 | |
| 9 | struct platform { |
| 10 | cs_arch arch; |
| 11 | cs_mode mode; |
| 12 | unsigned char *code; |
| 13 | size_t size; |
| 14 | char *comment; |
| 15 | }; |
| 16 | |
| 17 | static csh handle; |
| 18 | |
| 19 | static void print_string_hex(char *comment, unsigned char *str, int len) |
| 20 | { |
| 21 | unsigned char *c; |
| 22 | |
| 23 | printf("%s", comment); |
| 24 | for (c = str; c < str + len; c++) { |
| 25 | printf("0x%02x ", *c & 0xff); |
| 26 | } |
| 27 | |
| 28 | printf("\n"); |
| 29 | } |
| 30 | |
| 31 | static void print_insn_detail(cs_insn *ins) |
| 32 | { |
| 33 | cs_xcore *xcore; |
| 34 | int i; |
| 35 | |
| 36 | // detail can be NULL on "data" instruction if SKIPDATA option is turned ON |
| 37 | if (ins->detail == NULL) |
| 38 | return; |
| 39 | |
| 40 | xcore = &(ins->detail->xcore); |
| 41 | if (xcore->op_count) |
| 42 | printf("\top_count: %u\n", xcore->op_count); |
| 43 | |
| 44 | for (i = 0; i < xcore->op_count; i++) { |
| 45 | cs_xcore_op *op = &(xcore->operands[i]); |
| 46 | switch((int)op->type) { |
| 47 | default: |
| 48 | break; |
| 49 | case XCORE_OP_REG: |
| 50 | printf("\t\toperands[%u].type: REG = %s\n", i, cs_reg_name(handle, op->reg)); |
| 51 | break; |
| 52 | case XCORE_OP_IMM: |
| 53 | printf("\t\toperands[%u].type: IMM = 0x%x\n", i, op->imm); |
| 54 | break; |
| 55 | case XCORE_OP_MEM: |
| 56 | printf("\t\toperands[%u].type: MEM\n", i); |
| 57 | if (op->mem.base != XCORE_REG_INVALID) |
| 58 | printf("\t\t\toperands[%u].mem.base: REG = %s\n", |
| 59 | i, cs_reg_name(handle, op->mem.base)); |
| 60 | if (op->mem.index != XCORE_REG_INVALID) |
| 61 | printf("\t\t\toperands[%u].mem.index: REG = %s\n", |
| 62 | i, cs_reg_name(handle, op->mem.index)); |
| 63 | if (op->mem.disp != 0) |
| 64 | printf("\t\t\toperands[%u].mem.disp: 0x%x\n", i, op->mem.disp); |
| 65 | if (op->mem.direct != 1) |
| 66 | printf("\t\t\toperands[%u].mem.direct: -1\n", i); |
| 67 | |
| 68 | |
| 69 | break; |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | printf("\n"); |
| 74 | } |
| 75 | |
| 76 | static void test() |
| 77 | { |
| 78 | #define XCORE_CODE "\xfe\x0f\xfe\x17\x13\x17\xc6\xfe\xec\x17\x97\xf8\xec\x4f\x1f\xfd\xec\x37\x07\xf2\x45\x5b\xf9\xfa\x02\x06\x1b\x10\x09\xfd\xec\xa7" |
| 79 | |
| 80 | struct platform platforms[] = { |
| 81 | { |
| 82 | CS_ARCH_XCORE, |
| 83 | CS_MODE_BIG_ENDIAN, |
| 84 | (unsigned char*)XCORE_CODE, |
| 85 | sizeof(XCORE_CODE) - 1, |
| 86 | "XCore", |
| 87 | }, |
| 88 | }; |
| 89 | |
| 90 | uint64_t address = 0x1000; |
| 91 | cs_insn *insn; |
| 92 | int i; |
| 93 | size_t count; |
| 94 | |
| 95 | for (i = 0; i < sizeof(platforms)/sizeof(platforms[0]); i++) { |
| 96 | cs_err err = cs_open(platforms[i].arch, platforms[i].mode, &handle); |
| 97 | if (err) { |
| 98 | printf("Failed on cs_open() with error returned: %u\n", err); |
| 99 | continue; |
| 100 | } |
| 101 | |
| 102 | cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON); |
| 103 | |
| 104 | count = cs_disasm_ex(handle, platforms[i].code, platforms[i].size, address, 0, &insn); |
| 105 | if (count) { |
| 106 | size_t j; |
| 107 | |
| 108 | printf("****************\n"); |
| 109 | printf("Platform: %s\n", platforms[i].comment); |
| 110 | print_string_hex("Code:", platforms[i].code, platforms[i].size); |
| 111 | printf("Disasm:\n"); |
| 112 | |
| 113 | for (j = 0; j < count; j++) { |
| 114 | printf("0x%"PRIx64":\t%s\t%s\n", insn[j].address, insn[j].mnemonic, insn[j].op_str); |
| 115 | print_insn_detail(&insn[j]); |
| 116 | } |
| 117 | printf("0x%"PRIx64":\n", insn[j-1].address + insn[j-1].size); |
| 118 | |
| 119 | // free memory allocated by cs_disasm_ex() |
| 120 | cs_free(insn, count); |
| 121 | } else { |
| 122 | printf("****************\n"); |
| 123 | printf("Platform: %s\n", platforms[i].comment); |
| 124 | print_string_hex("Code:", platforms[i].code, platforms[i].size); |
| 125 | printf("ERROR: Failed to disasm given code!\n"); |
| 126 | } |
| 127 | |
| 128 | printf("\n"); |
| 129 | |
| 130 | cs_close(&handle); |
| 131 | } |
| 132 | } |
| 133 | |
| 134 | int main() |
| 135 | { |
| 136 | test(); |
| 137 | |
| 138 | return 0; |
| 139 | } |