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 <capstone/platform.h>
8 #include <capstone/capstone.h>
9
10 struct platform {
11 cs_arch arch;
12 cs_mode mode;
13 unsigned char *code;
14 size_t size;
15 const char *comment;
16 };
17
18 static csh handle;
19
print_string_hex(const char * comment,unsigned char * str,size_t len)20 static void print_string_hex(const 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 != MIPS_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 #define MIPS_64SD "\x70\x00\xb2\xff"
86
87 struct platform platforms[] = {
88 {
89 CS_ARCH_MIPS,
90 (cs_mode)(CS_MODE_MIPS32 | CS_MODE_BIG_ENDIAN),
91 (unsigned char *)MIPS_CODE,
92 sizeof(MIPS_CODE) - 1,
93 "MIPS-32 (Big-endian)"
94 },
95 {
96 CS_ARCH_MIPS,
97 (cs_mode)(CS_MODE_MIPS64 | CS_MODE_LITTLE_ENDIAN),
98 (unsigned char *)MIPS_CODE2,
99 sizeof(MIPS_CODE2) - 1,
100 "MIPS-64-EL (Little-endian)"
101 },
102 {
103 CS_ARCH_MIPS,
104 (cs_mode)(CS_MODE_MIPS32R6 | CS_MODE_MICRO | CS_MODE_BIG_ENDIAN),
105 (unsigned char*)MIPS_32R6M,
106 sizeof(MIPS_32R6M) - 1,
107 "MIPS-32R6 | Micro (Big-endian)"
108 },
109 {
110 CS_ARCH_MIPS,
111 (cs_mode)(CS_MODE_MIPS32R6 | CS_MODE_BIG_ENDIAN),
112 (unsigned char*)MIPS_32R6,
113 sizeof(MIPS_32R6) - 1,
114 "MIPS-32R6 (Big-endian)"
115 },
116 {
117 CS_ARCH_MIPS,
118 (cs_mode)(CS_MODE_MIPS64 | CS_MODE_MIPS2 | CS_MODE_LITTLE_ENDIAN),
119 (unsigned char *)MIPS_64SD,
120 sizeof(MIPS_64SD) - 1,
121 "MIPS-64-EL + Mips II (Little-endian)"
122 },
123 {
124 CS_ARCH_MIPS,
125 (cs_mode)(CS_MODE_MIPS64 | CS_MODE_LITTLE_ENDIAN),
126 (unsigned char *)MIPS_64SD,
127 sizeof(MIPS_64SD) - 1,
128 "MIPS-64-EL (Little-endian)"
129 },
130 };
131
132 uint64_t address = 0x1000;
133 cs_insn *insn;
134 int i;
135 size_t count;
136
137 for (i = 0; i < sizeof(platforms)/sizeof(platforms[0]); i++) {
138 cs_err err = cs_open(platforms[i].arch, platforms[i].mode, &handle);
139 if (err) {
140 printf("Failed on cs_open() with error returned: %u\n", err);
141 abort();
142 }
143
144 cs_option(handle, CS_OPT_DETAIL, CS_OPT_ON);
145
146 count = cs_disasm(handle, platforms[i].code, platforms[i].size, address, 0, &insn);
147 if (count) {
148 size_t j;
149
150 printf("****************\n");
151 printf("Platform: %s\n", platforms[i].comment);
152 print_string_hex("Code:", platforms[i].code, platforms[i].size);
153 printf("Disasm:\n");
154
155 for (j = 0; j < count; j++) {
156 printf("0x%" PRIx64 ":\t%s\t%s\n", insn[j].address, insn[j].mnemonic, insn[j].op_str);
157 print_insn_detail(&insn[j]);
158 }
159 printf("0x%" PRIx64 ":\n", insn[j-1].address + insn[j-1].size);
160
161 // free memory allocated by cs_disasm()
162 cs_free(insn, count);
163 } else {
164 printf("****************\n");
165 printf("Platform: %s\n", platforms[i].comment);
166 print_string_hex("Code:", platforms[i].code, platforms[i].size);
167 printf("ERROR: Failed to disasm given code!\n");
168 abort();
169 }
170
171 printf("\n");
172
173 cs_close(&handle);
174 }
175 }
176
main()177 int main()
178 {
179 test();
180
181 return 0;
182 }
183