Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 1 | /* Capstone Disassembler Engine */ |
| 2 | /* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013> */ |
| 3 | |
| 4 | #include <stdio.h> |
| 5 | #include <stdlib.h> |
| 6 | #include <inttypes.h> |
| 7 | |
| 8 | #include <capstone.h> |
| 9 | |
| 10 | struct platform { |
| 11 | cs_arch arch; |
| 12 | cs_mode mode; |
Nguyen Anh Quynh | b42a657 | 2013-11-29 17:40:07 +0800 | [diff] [blame] | 13 | unsigned char *code; |
| 14 | size_t size; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 15 | char *comment; |
| 16 | }; |
| 17 | |
| 18 | static csh handle; |
| 19 | |
Nguyen Anh Quynh | b42a657 | 2013-11-29 17:40:07 +0800 | [diff] [blame] | 20 | static void print_string_hex(char *comment, unsigned char *str, int len) |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 21 | { |
Nguyen Anh Quynh | b42a657 | 2013-11-29 17:40:07 +0800 | [diff] [blame] | 22 | unsigned char *c; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 23 | |
| 24 | printf("%s", comment); |
| 25 | for (c = str; c < str + len; c++) { |
| 26 | printf("0x%02x ", *c & 0xff); |
| 27 | } |
| 28 | |
| 29 | printf("\n"); |
| 30 | } |
| 31 | |
| 32 | static void print_insn_detail(cs_arch mode, cs_insn *ins) |
| 33 | { |
| 34 | cs_mips *mips = &(ins->mips); |
| 35 | |
| 36 | if (mips->op_count) |
| 37 | printf("\top_count: %u\n", mips->op_count); |
| 38 | |
| 39 | int i; |
| 40 | for (i = 0; i < mips->op_count; i++) { |
| 41 | cs_mips_op *op = &(mips->operands[i]); |
| 42 | switch((int)op->type) { |
| 43 | default: |
| 44 | break; |
| 45 | case MIPS_OP_REG: |
| 46 | printf("\t\toperands[%u].type: REG = %s\n", i, cs_reg_name(handle, op->reg)); |
| 47 | break; |
| 48 | case MIPS_OP_IMM: |
| 49 | printf("\t\toperands[%u].type: IMM = 0x%"PRIx64 "\n", i, op->imm); |
| 50 | break; |
| 51 | case MIPS_OP_MEM: |
| 52 | printf("\t\toperands[%u].type: MEM\n", i); |
| 53 | if (op->mem.base != X86_REG_INVALID) |
| 54 | printf("\t\t\toperands[%u].mem.base: REG = %s\n", |
| 55 | i, cs_reg_name(handle, op->mem.base)); |
| 56 | if (op->mem.disp != 0) |
| 57 | printf("\t\t\toperands[%u].mem.disp: 0x%" PRIx64 "\n", i, op->mem.disp); |
| 58 | |
| 59 | break; |
| 60 | } |
| 61 | |
| 62 | } |
| 63 | |
| 64 | printf("\n"); |
| 65 | } |
| 66 | |
| 67 | static void test() |
| 68 | { |
| 69 | //#define MIPS_CODE "\x8f\xa2\x00\x00" |
| 70 | //#define MIPS_CODE "\x00\x00\xa7\xac\x10\x00\xa2\x8f" |
| 71 | //#define MIPS_CODE "\x21\x30\xe6\x70" // clo $6, $7 |
| 72 | //#define MIPS_CODE "\x00\x00\x00\x00" // nop |
| 73 | //#define MIPS_CODE "\xc6\x23\xe9\xe4" // swc1 $f9, 0x23c6($7) |
| 74 | //#define MIPS_CODE "\x21\x38\x00\x01" // move $7, $8 |
| 75 | #define MIPS_CODE "\x0C\x10\x00\x97\x00\x00\x00\x00\x24\x02\x00\x0c\x8f\xa2\x00\x00\x34\x21\x34\x56" |
| 76 | #define MIPS_CODE2 "\x56\x34\x21\x34\xc2\x17\x01\x00" |
| 77 | |
| 78 | struct platform platforms[] = { |
| 79 | { |
| 80 | .arch = CS_ARCH_MIPS, |
| 81 | .mode = CS_MODE_32 + CS_MODE_BIG_ENDIAN, |
Nguyen Anh Quynh | b42a657 | 2013-11-29 17:40:07 +0800 | [diff] [blame] | 82 | .code = (unsigned char *)MIPS_CODE, |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 83 | .size = sizeof(MIPS_CODE) - 1, |
| 84 | .comment = "MIPS-32 (Big-endian)" |
| 85 | }, |
| 86 | { |
| 87 | .arch = CS_ARCH_MIPS, |
| 88 | .mode = CS_MODE_64+ CS_MODE_LITTLE_ENDIAN, |
Nguyen Anh Quynh | b42a657 | 2013-11-29 17:40:07 +0800 | [diff] [blame] | 89 | .code = (unsigned char *)MIPS_CODE2, |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 90 | .size = sizeof(MIPS_CODE2) - 1, |
| 91 | .comment = "MIPS-64-EL (Little-endian)" |
| 92 | }, |
| 93 | }; |
| 94 | |
Nguyen Anh Quynh | b42a657 | 2013-11-29 17:40:07 +0800 | [diff] [blame] | 95 | size_t address = 0x1000; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 96 | cs_insn *insn; |
| 97 | int i; |
| 98 | |
| 99 | for (i = 0; i < sizeof(platforms)/sizeof(platforms[0]); i++) { |
| 100 | if (cs_open(platforms[i].arch, platforms[i].mode, &handle)) |
| 101 | return; |
| 102 | |
Nguyen Anh Quynh | b42a657 | 2013-11-29 17:40:07 +0800 | [diff] [blame] | 103 | size_t count = cs_disasm_dyn(handle, platforms[i].code, platforms[i].size, address, 0, &insn); |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 104 | if (count) { |
| 105 | printf("****************\n"); |
| 106 | printf("Platform: %s\n", platforms[i].comment); |
| 107 | print_string_hex("Code:", platforms[i].code, platforms[i].size); |
| 108 | printf("Disasm:\n"); |
| 109 | |
Nguyen Anh Quynh | b42a657 | 2013-11-29 17:40:07 +0800 | [diff] [blame] | 110 | size_t j; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 111 | for (j = 0; j < count; j++) { |
Nguyen Anh Quynh | 7b7b40c | 2013-12-03 12:24:06 +0800 | [diff] [blame^] | 112 | printf("0x%"PRIx64":\t%s\t%s\n", insn[j].address, insn[j].mnemonic, insn[j].op_str); |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 113 | print_insn_detail(platforms[i].mode, &insn[j]); |
| 114 | } |
Nguyen Anh Quynh | 7b7b40c | 2013-12-03 12:24:06 +0800 | [diff] [blame^] | 115 | printf("0x%"PRIx64":\n", insn[j-1].address + insn[j-1].size); |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 116 | |
| 117 | // free memory allocated by cs_disasm_dyn() |
| 118 | cs_free(insn); |
| 119 | } else { |
| 120 | printf("****************\n"); |
| 121 | printf("Platform: %s\n", platforms[i].comment); |
| 122 | print_string_hex("Code:", platforms[i].code, platforms[i].size); |
| 123 | printf("ERROR: Failed to disasm given code!\n"); |
| 124 | } |
| 125 | |
| 126 | printf("\n"); |
| 127 | |
| 128 | cs_close(handle); |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | int main() |
| 133 | { |
| 134 | test(); |
| 135 | |
| 136 | return 0; |
| 137 | } |