1 /* Capstone Disassembler Engine */
2 /* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013> */
3
4 #include <stdio.h>
5 #include <stdlib.h>
6
7 #include <platform.h>
8 #include <capstone.h>
9
10 struct platform {
11 cs_arch arch;
12 cs_mode mode;
13 unsigned char *code;
14 size_t size;
15 char *comment;
16 };
17
18 static csh handle;
19
print_string_hex(char * comment,unsigned char * str,size_t len)20 static void print_string_hex(char *comment, unsigned char *str, size_t len)
21 {
22 unsigned char *c;
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
print_insn_detail(cs_insn * ins)32 static void print_insn_detail(cs_insn *ins)
33 {
34 int i;
35 cs_mips *mips;
36
37 // detail can be NULL on "data" instruction if SKIPDATA option is turned ON
38 if (ins->detail == NULL)
39 return;
40
41 mips = &(ins->detail->mips);
42 if (mips->op_count)
43 printf("\top_count: %u\n", mips->op_count);
44
45 for (i = 0; i < mips->op_count; i++) {
46 cs_mips_op *op = &(mips->operands[i]);
47 switch((int)op->type) {
48 default:
49 break;
50 case MIPS_OP_REG:
51 printf("\t\toperands[%u].type: REG = %s\n", i, cs_reg_name(handle, op->reg));
52 break;
53 case MIPS_OP_IMM:
54 printf("\t\toperands[%u].type: IMM = 0x%" PRIx64 "\n", i, op->imm);
55 break;
56 case MIPS_OP_MEM:
57 printf("\t\toperands[%u].type: MEM\n", i);
58 if (op->mem.base != X86_REG_INVALID)
59 printf("\t\t\toperands[%u].mem.base: REG = %s\n",
60 i, cs_reg_name(handle, op->mem.base));
61 if (op->mem.disp != 0)
62 printf("\t\t\toperands[%u].mem.disp: 0x%" PRIx64 "\n", i, op->mem.disp);
63
64 break;
65 }
66
67 }
68
69 printf("\n");
70 }
71
test()72 static void test()
73 {
74 //#define MIPS_CODE "\x8f\xa2\x00\x00"
75 //#define MIPS_CODE "\x00\x00\xa7\xac\x10\x00\xa2\x8f"
76 //#define MIPS_CODE "\x21\x30\xe6\x70" // clo $6, $7
77 //#define MIPS_CODE "\x00\x00\x00\x00" // nop
78 //#define MIPS_CODE "\xc6\x23\xe9\xe4" // swc1 $f9, 0x23c6($7)
79 //#define MIPS_CODE "\x21\x38\x00\x01" // move $7, $8
80 #define MIPS_CODE "\x0C\x10\x00\x97\x00\x00\x00\x00\x24\x02\x00\x0c\x8f\xa2\x00\x00\x34\x21\x34\x56"
81 //#define MIPS_CODE "\x04\x11\x00\x01" // bal 0x8
82 #define MIPS_CODE2 "\x56\x34\x21\x34\xc2\x17\x01\x00"
83 #define MIPS_32R6M "\x00\x07\x00\x07\x00\x11\x93\x7c\x01\x8c\x8b\x7c\x00\xc7\x48\xd0"
84 #define MIPS_32R6 "\xec\x80\x00\x19\x7c\x43\x22\xa0"
85
86 struct platform platforms[] = {
87 {
88 CS_ARCH_MIPS,
89 (cs_mode)(CS_MODE_MIPS32 + CS_MODE_BIG_ENDIAN),
90 (unsigned char *)MIPS_CODE,
91 sizeof(MIPS_CODE) - 1,
92 "MIPS-32 (Big-endian)"
93 },
94 {
95 CS_ARCH_MIPS,
96 (cs_mode)(CS_MODE_MIPS64 + CS_MODE_LITTLE_ENDIAN),
97 (unsigned char *)MIPS_CODE2,
98 sizeof(MIPS_CODE2) - 1,
99 "MIPS-64-EL (Little-endian)"
100 },
101 {
102 CS_ARCH_MIPS,
103 (cs_mode)(CS_MODE_MIPS32R6 + CS_MODE_MICRO + CS_MODE_BIG_ENDIAN),
104 (unsigned char*)MIPS_32R6M,
105 sizeof(MIPS_32R6M) - 1,
106 "MIPS-32R6 | Micro (Big-endian)"
107 },
108 {
109 CS_ARCH_MIPS,
110 (cs_mode)(CS_MODE_MIPS32R6 + CS_MODE_BIG_ENDIAN),
111 (unsigned char*)MIPS_32R6,
112 sizeof(MIPS_32R6) - 1,
113 "MIPS-32R6 (Big-endian)"
114 },
115 };
116
117 uint64_t address = 0x1000;
118 cs_insn *insn;
119 int i;
120 size_t count;
121
122 for (i = 0; i < sizeof(platforms)/sizeof(platforms[0]); i++) {
123 cs_err err = cs_open(platforms[i].arch, platforms[i].mode, &handle);
124 if (err) {
125 printf("Failed on cs_open() with error returned: %u\n", err);
126 continue;
127 }
128
129 cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON);
130
131 count = cs_disasm(handle, platforms[i].code, platforms[i].size, address, 0, &insn);
132 if (count) {
133 size_t j;
134
135 printf("****************\n");
136 printf("Platform: %s\n", platforms[i].comment);
137 print_string_hex("Code:", platforms[i].code, platforms[i].size);
138 printf("Disasm:\n");
139
140 for (j = 0; j < count; j++) {
141 printf("0x%" PRIx64 ":\t%s\t%s\n", insn[j].address, insn[j].mnemonic, insn[j].op_str);
142 print_insn_detail(&insn[j]);
143 }
144 printf("0x%" PRIx64 ":\n", insn[j-1].address + insn[j-1].size);
145
146 // free memory allocated by cs_disasm()
147 cs_free(insn, count);
148 } else {
149 printf("****************\n");
150 printf("Platform: %s\n", platforms[i].comment);
151 print_string_hex("Code:", platforms[i].code, platforms[i].size);
152 printf("ERROR: Failed to disasm given code!\n");
153 }
154
155 printf("\n");
156
157 cs_close(&handle);
158 }
159 }
160
main()161 int main()
162 {
163 test();
164
165 return 0;
166 }
167