Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame^] | 1 | /* Capstone Disassembler Engine */ |
| 2 | /* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013> */ |
| 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_ppc *ppc = &(ins->detail->ppc); |
| 34 | |
| 35 | if (ppc->op_count) |
| 36 | printf("\top_count: %u\n", ppc->op_count); |
| 37 | |
| 38 | int i; |
| 39 | for (i = 0; i < ppc->op_count; i++) { |
| 40 | cs_ppc_op *op = &(ppc->operands[i]); |
| 41 | switch((int)op->type) { |
| 42 | default: |
| 43 | break; |
| 44 | case PPC_OP_REG: |
| 45 | printf("\t\toperands[%u].type: REG = %s\n", i, cs_reg_name(handle, op->reg)); |
| 46 | break; |
| 47 | case PPC_OP_IMM: |
| 48 | printf("\t\toperands[%u].type: IMM = 0x%x\n", i, op->imm); |
| 49 | break; |
| 50 | case PPC_OP_MEM: |
| 51 | printf("\t\toperands[%u].type: MEM\n", i); |
| 52 | if (op->mem.base != X86_REG_INVALID) |
| 53 | printf("\t\t\toperands[%u].mem.base: REG = %s\n", |
| 54 | i, cs_reg_name(handle, op->mem.base)); |
| 55 | if (op->mem.disp != 0) |
| 56 | printf("\t\t\toperands[%u].mem.disp: 0x%x\n", i, op->mem.disp); |
| 57 | |
| 58 | break; |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | if (ppc->bc != 0) |
| 63 | printf("\tBranch code: %u\n", ins->detail->ppc.bc); |
| 64 | |
| 65 | if (ppc->update_cr0) |
| 66 | printf("\tUpdate-CR0: True\n"); |
| 67 | |
| 68 | printf("\n"); |
| 69 | } |
| 70 | |
| 71 | static void test() |
| 72 | { |
| 73 | #define PPC_CODE "\x80\x20\x00\x00\x80\x3f\x00\x00\x10\x43\x23\x0e\xd0\x44\x00\x80\x4c\x43\x22\x02\x2d\x03\x00\x80\x7c\x43\x20\x14\x7c\x43\x20\x93\x4f\x20\x00\x21\x4c\xc8\x00\x21" |
| 74 | |
| 75 | struct platform platforms[] = { |
| 76 | { |
| 77 | .arch = CS_ARCH_PPC, |
| 78 | .mode = CS_MODE_BIG_ENDIAN, |
| 79 | .code = (unsigned char*)PPC_CODE, |
| 80 | .size = sizeof(PPC_CODE) - 1, |
| 81 | .comment = "PPC-64", |
| 82 | } |
| 83 | }; |
| 84 | |
| 85 | uint64_t address = 0x1000; |
| 86 | cs_insn *insn; |
| 87 | int i; |
| 88 | |
| 89 | for (i = 0; i < sizeof(platforms)/sizeof(platforms[0]); i++) { |
| 90 | if (cs_open(platforms[i].arch, platforms[i].mode, &handle)) |
| 91 | return; |
| 92 | |
| 93 | size_t count = cs_disasm_ex(handle, platforms[i].code, platforms[i].size, address, 0, &insn); |
| 94 | if (count) { |
| 95 | printf("****************\n"); |
| 96 | printf("Platform: %s\n", platforms[i].comment); |
| 97 | print_string_hex("Code:", platforms[i].code, platforms[i].size); |
| 98 | printf("Disasm:\n"); |
| 99 | |
| 100 | size_t j; |
| 101 | for (j = 0; j < count; j++) { |
| 102 | printf("0x%"PRIx64":\t%s\t%s\n", insn[j].address, insn[j].mnemonic, insn[j].op_str); |
| 103 | print_insn_detail(&insn[j]); |
| 104 | } |
| 105 | printf("0x%"PRIx64":\n", insn[j-1].address + insn[j-1].size); |
| 106 | |
| 107 | // free memory allocated by cs_disasm_ex() |
| 108 | cs_free(insn, count); |
| 109 | } else { |
| 110 | printf("****************\n"); |
| 111 | printf("Platform: %s\n", platforms[i].comment); |
| 112 | print_string_hex("Code:", platforms[i].code, platforms[i].size); |
| 113 | printf("ERROR: Failed to disasm given code!\n"); |
| 114 | } |
| 115 | |
| 116 | printf("\n"); |
| 117 | |
| 118 | cs_close(handle); |
| 119 | } |
| 120 | } |
| 121 | |
| 122 | int main() |
| 123 | { |
| 124 | test(); |
| 125 | |
| 126 | return 0; |
| 127 | } |