1 /* Capstone Disassembler Engine */ 2 /* By Nguyen Anh Quynh <aquynh (at) gmail.com>, 2013-2014 */ 3 4 #include <stdio.h> 5 6 #include <platform.h> 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, size_t 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(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() 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 } 140
