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> |
Yegor Derevenets | ced9d24 | 2014-09-21 17:27:11 +0200 | [diff] [blame] | 5 | #include "../inttypes.h" |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 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 | |
Mr. eXoDia | 9be1f93 | 2014-08-26 12:46:15 +0200 | [diff] [blame] | 19 | static void print_string_hex(char *comment, unsigned char *str, size_t len) |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 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 | |
kratolp | 5c0d9a4 | 2014-10-17 14:52:03 +0200 | [diff] [blame] | 31 | static const char* get_bc_name(int bc) |
| 32 | { |
| 33 | switch(bc) { |
| 34 | default: |
| 35 | case PPC_BC_INVALID: |
| 36 | return ("invalid"); |
| 37 | case PPC_BC_LT: |
| 38 | return ("lt"); |
| 39 | case PPC_BC_LE: |
| 40 | return ("le"); |
| 41 | case PPC_BC_EQ: |
| 42 | return ("eq"); |
| 43 | case PPC_BC_GE: |
| 44 | return ("ge"); |
| 45 | case PPC_BC_GT: |
| 46 | return ("gt"); |
| 47 | case PPC_BC_NE: |
| 48 | return ("ne"); |
| 49 | case PPC_BC_UN: |
| 50 | return ("un"); |
| 51 | case PPC_BC_NU: |
| 52 | return ("nu"); |
| 53 | case PPC_BC_SO: |
| 54 | return ("so"); |
| 55 | case PPC_BC_NS: |
| 56 | return ("ns"); |
| 57 | } |
| 58 | } |
| 59 | |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 60 | static void print_insn_detail(cs_insn *ins) |
| 61 | { |
Nguyen Anh Quynh | 54015f4 | 2014-04-10 00:02:04 +0800 | [diff] [blame] | 62 | cs_ppc *ppc; |
Nguyen Anh Quynh | 5b556e5 | 2014-04-11 10:15:26 +0800 | [diff] [blame] | 63 | int i; |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 64 | |
Nguyen Anh Quynh | 54015f4 | 2014-04-10 00:02:04 +0800 | [diff] [blame] | 65 | // detail can be NULL on "data" instruction if SKIPDATA option is turned ON |
| 66 | if (ins->detail == NULL) |
| 67 | return; |
| 68 | |
| 69 | ppc = &(ins->detail->ppc); |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 70 | if (ppc->op_count) |
| 71 | printf("\top_count: %u\n", ppc->op_count); |
| 72 | |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 73 | for (i = 0; i < ppc->op_count; i++) { |
| 74 | cs_ppc_op *op = &(ppc->operands[i]); |
| 75 | switch((int)op->type) { |
| 76 | default: |
| 77 | break; |
| 78 | case PPC_OP_REG: |
| 79 | printf("\t\toperands[%u].type: REG = %s\n", i, cs_reg_name(handle, op->reg)); |
| 80 | break; |
| 81 | case PPC_OP_IMM: |
| 82 | printf("\t\toperands[%u].type: IMM = 0x%x\n", i, op->imm); |
| 83 | break; |
| 84 | case PPC_OP_MEM: |
| 85 | printf("\t\toperands[%u].type: MEM\n", i); |
| 86 | if (op->mem.base != X86_REG_INVALID) |
| 87 | printf("\t\t\toperands[%u].mem.base: REG = %s\n", |
| 88 | i, cs_reg_name(handle, op->mem.base)); |
| 89 | if (op->mem.disp != 0) |
| 90 | printf("\t\t\toperands[%u].mem.disp: 0x%x\n", i, op->mem.disp); |
| 91 | |
| 92 | break; |
kratolp | 5c0d9a4 | 2014-10-17 14:52:03 +0200 | [diff] [blame] | 93 | case PPC_OP_CRX: |
| 94 | printf("\t\toperands[%u].type: CRX\n", i); |
| 95 | printf("\t\t\toperands[%u].crx.scale: %d\n", i, op->crx.scale); |
| 96 | printf("\t\t\toperands[%u].crx.reg: %s\n", i, cs_reg_name(handle, op->crx.reg)); |
| 97 | printf("\t\t\toperands[%u].crx.cond: %s\n", i, get_bc_name(op->crx.cond)); |
| 98 | break; |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 99 | } |
| 100 | } |
| 101 | |
| 102 | if (ppc->bc != 0) |
Nguyen Anh Quynh | f122ae0 | 2014-01-05 21:45:30 +0800 | [diff] [blame] | 103 | printf("\tBranch code: %u\n", ppc->bc); |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 104 | |
Nguyen Anh Quynh | 91e532d | 2014-01-05 09:15:42 +0800 | [diff] [blame] | 105 | if (ppc->bh != 0) |
Nguyen Anh Quynh | f122ae0 | 2014-01-05 21:45:30 +0800 | [diff] [blame] | 106 | printf("\tBranch hint: %u\n", ppc->bh); |
Nguyen Anh Quynh | 91e532d | 2014-01-05 09:15:42 +0800 | [diff] [blame] | 107 | |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 108 | if (ppc->update_cr0) |
| 109 | printf("\tUpdate-CR0: True\n"); |
| 110 | |
| 111 | printf("\n"); |
| 112 | } |
| 113 | |
| 114 | static void test() |
| 115 | { |
kratolp | 5c0d9a4 | 2014-10-17 14:52:03 +0200 | [diff] [blame] | 116 | #define PPC_CODE "\x43\x20\x0c\x07\x41\x56\xff\x17\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\x40\x82\x00\x14" |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 117 | |
| 118 | struct platform platforms[] = { |
| 119 | { |
Axel 0vercl0k Souchet | e116c51 | 2014-05-09 21:17:02 +0100 | [diff] [blame] | 120 | CS_ARCH_PPC, |
| 121 | CS_MODE_BIG_ENDIAN, |
| 122 | (unsigned char*)PPC_CODE, |
| 123 | sizeof(PPC_CODE) - 1, |
| 124 | "PPC-64", |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 125 | } |
| 126 | }; |
| 127 | |
| 128 | uint64_t address = 0x1000; |
| 129 | cs_insn *insn; |
| 130 | int i; |
Nguyen Anh Quynh | 5b556e5 | 2014-04-11 10:15:26 +0800 | [diff] [blame] | 131 | size_t count; |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 132 | |
| 133 | for (i = 0; i < sizeof(platforms)/sizeof(platforms[0]); i++) { |
Nguyen Anh Quynh | ceae16d | 2014-01-19 16:04:23 +0800 | [diff] [blame] | 134 | cs_err err = cs_open(platforms[i].arch, platforms[i].mode, &handle); |
| 135 | if (err) { |
| 136 | printf("Failed on cs_open() with error returned: %u\n", err); |
Nguyen Anh Quynh | 4914691 | 2014-02-22 16:54:44 +0800 | [diff] [blame] | 137 | continue; |
Nguyen Anh Quynh | ceae16d | 2014-01-19 16:04:23 +0800 | [diff] [blame] | 138 | } |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 139 | |
Nguyen Anh Quynh | 39b812d | 2014-01-07 23:36:26 +0800 | [diff] [blame] | 140 | cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON); |
| 141 | |
Nguyen Anh Quynh | 0beb0d4 | 2014-08-27 22:55:29 +0800 | [diff] [blame] | 142 | count = cs_disasm(handle, platforms[i].code, platforms[i].size, address, 0, &insn); |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 143 | if (count) { |
Nguyen Anh Quynh | 5b556e5 | 2014-04-11 10:15:26 +0800 | [diff] [blame] | 144 | size_t j; |
| 145 | |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 146 | printf("****************\n"); |
| 147 | printf("Platform: %s\n", platforms[i].comment); |
| 148 | print_string_hex("Code:", platforms[i].code, platforms[i].size); |
| 149 | printf("Disasm:\n"); |
| 150 | |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 151 | for (j = 0; j < count; j++) { |
| 152 | printf("0x%"PRIx64":\t%s\t%s\n", insn[j].address, insn[j].mnemonic, insn[j].op_str); |
| 153 | print_insn_detail(&insn[j]); |
| 154 | } |
| 155 | printf("0x%"PRIx64":\n", insn[j-1].address + insn[j-1].size); |
| 156 | |
Nguyen Anh Quynh | 0beb0d4 | 2014-08-27 22:55:29 +0800 | [diff] [blame] | 157 | // free memory allocated by cs_disasm() |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 158 | cs_free(insn, count); |
| 159 | } else { |
| 160 | printf("****************\n"); |
| 161 | printf("Platform: %s\n", platforms[i].comment); |
| 162 | print_string_hex("Code:", platforms[i].code, platforms[i].size); |
| 163 | printf("ERROR: Failed to disasm given code!\n"); |
| 164 | } |
| 165 | |
| 166 | printf("\n"); |
| 167 | |
Nguyen Anh Quynh | 226d7dc | 2014-02-27 22:20:39 +0800 | [diff] [blame] | 168 | cs_close(&handle); |
Nguyen Anh Quynh | f1d489b | 2014-01-05 00:00:05 +0800 | [diff] [blame] | 169 | } |
| 170 | } |
| 171 | |
| 172 | int main() |
| 173 | { |
| 174 | test(); |
| 175 | |
| 176 | return 0; |
| 177 | } |