Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 1 | /* Capstone Disassembler Engine */ |
| 2 | /* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013> */ |
| 3 | |
| 4 | #include <stdio.h> |
| 5 | #include <stdlib.h> |
| 6 | #include <string.h> |
| 7 | #include <capstone.h> |
| 8 | |
| 9 | #include "cs_priv.h" |
| 10 | |
| 11 | #include "MCRegisterInfo.h" |
| 12 | |
| 13 | #include "arch/X86/X86Disassembler.h" |
| 14 | #include "arch/X86/X86InstPrinter.h" |
| 15 | #include "arch/X86/mapping.h" |
| 16 | |
| 17 | #include "arch/ARM/ARMDisassembler.h" |
| 18 | #include "arch/ARM/ARMInstPrinter.h" |
| 19 | #include "arch/ARM/mapping.h" |
| 20 | |
| 21 | #include "arch/Mips/MipsDisassembler.h" |
| 22 | #include "arch/Mips/MipsInstPrinter.h" |
| 23 | #include "arch/Mips/mapping.h" |
| 24 | |
| 25 | #include "arch/AArch64/AArch64Disassembler.h" |
| 26 | #include "arch/AArch64/AArch64InstPrinter.h" |
| 27 | #include "arch/AArch64/mapping.h" |
| 28 | |
| 29 | #include "utils.h" |
| 30 | |
Nguyen Anh Quynh | 5dbe12a | 2013-12-03 12:27:46 +0800 | [diff] [blame] | 31 | // Package version |
| 32 | #define PKG_MAJOR 1 |
| 33 | #define PKG_MINOR 0 |
| 34 | |
| 35 | // API version |
| 36 | #define API_MAJOR 1 |
| 37 | #define API_MINOR 5 |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 38 | |
| 39 | cs_err cs_errno(csh handle) |
| 40 | { |
| 41 | if (!handle) |
| 42 | return CS_ERR_CSH; |
| 43 | |
| 44 | cs_struct *ud = (cs_struct *)(uintptr_t)handle; |
| 45 | |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 46 | return ud->errnum; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 47 | } |
| 48 | |
| 49 | void cs_version(int *major, int *minor) |
| 50 | { |
Nguyen Anh Quynh | 5dbe12a | 2013-12-03 12:27:46 +0800 | [diff] [blame] | 51 | *major = API_MAJOR; |
| 52 | *minor = API_MINOR; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 53 | } |
| 54 | |
| 55 | cs_err cs_open(cs_arch arch, cs_mode mode, csh *handle) |
| 56 | { |
| 57 | cs_struct *ud; |
| 58 | |
| 59 | ud = calloc(1, sizeof(*ud)); |
| 60 | if (!ud) { |
| 61 | // memory insufficient |
| 62 | return CS_ERR_MEM; |
| 63 | } |
| 64 | |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 65 | ud->errnum = CS_ERR_OK; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 66 | ud->arch = arch; |
| 67 | ud->mode = mode; |
| 68 | ud->big_endian = mode & CS_MODE_BIG_ENDIAN; |
| 69 | ud->reg_name = NULL; |
| 70 | |
| 71 | switch (ud->arch) { |
| 72 | case CS_ARCH_X86: |
Nguyen Anh Quynh | 01aba00 | 2013-12-03 21:00:09 +0800 | [diff] [blame^] | 73 | // by default, we use Intel syntax |
| 74 | ud->printer = X86_Intel_printInst; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 75 | ud->printer_info = NULL; |
| 76 | ud->disasm = X86_getInstruction; |
| 77 | ud->reg_name = X86_reg_name; |
| 78 | ud->insn_id = X86_get_insn_id; |
| 79 | ud->insn_name = X86_insn_name; |
| 80 | break; |
| 81 | case CS_ARCH_ARM: { |
| 82 | MCRegisterInfo *mri = malloc(sizeof(*mri)); |
| 83 | |
| 84 | ARM_init(mri); |
| 85 | |
| 86 | ud->printer = ARM_printInst; |
| 87 | ud->printer_info = mri; |
| 88 | ud->reg_name = ARM_reg_name; |
| 89 | ud->insn_id = ARM_get_insn_id; |
| 90 | ud->insn_name = ARM_insn_name; |
| 91 | ud->post_printer = ARM_post_printer; |
| 92 | |
| 93 | if (ud->mode & CS_MODE_THUMB) |
| 94 | ud->disasm = Thumb_getInstruction; |
| 95 | else |
| 96 | ud->disasm = ARM_getInstruction; |
| 97 | break; |
| 98 | } |
| 99 | case CS_ARCH_MIPS: { |
| 100 | MCRegisterInfo *mri = malloc(sizeof(*mri)); |
| 101 | |
| 102 | Mips_init(mri); |
| 103 | ud->printer = Mips_printInst; |
| 104 | ud->printer_info = mri; |
| 105 | ud->getinsn_info = mri; |
| 106 | ud->reg_name = Mips_reg_name; |
| 107 | ud->insn_id = Mips_get_insn_id; |
| 108 | ud->insn_name = Mips_insn_name; |
| 109 | |
| 110 | if (ud->mode & CS_MODE_32) |
| 111 | ud->disasm = Mips_getInstruction; |
| 112 | else |
| 113 | ud->disasm = Mips64_getInstruction; |
| 114 | |
| 115 | if (ud->mode & CS_MODE_MICRO) |
| 116 | ud->micro_mips = true; |
| 117 | |
| 118 | break; |
| 119 | } |
| 120 | case CS_ARCH_ARM64: { |
| 121 | MCRegisterInfo *mri = malloc(sizeof(*mri)); |
| 122 | |
| 123 | AArch64_init(mri); |
| 124 | ud->printer = AArch64_printInst; |
| 125 | ud->printer_info = mri; |
| 126 | ud->getinsn_info = mri; |
| 127 | ud->disasm = AArch64_getInstruction; |
| 128 | ud->reg_name = AArch64_reg_name; |
| 129 | ud->insn_id = AArch64_get_insn_id; |
| 130 | ud->insn_name = AArch64_insn_name; |
| 131 | ud->post_printer = AArch64_post_printer; |
| 132 | break; |
| 133 | } |
| 134 | default: // unsupported architecture |
| 135 | free(ud); |
| 136 | return CS_ERR_ARCH; |
| 137 | } |
| 138 | |
| 139 | *handle = (uintptr_t)ud; |
| 140 | |
| 141 | return CS_ERR_OK; |
| 142 | } |
| 143 | |
| 144 | cs_err cs_close(csh handle) |
| 145 | { |
| 146 | if (!handle) |
| 147 | return CS_ERR_CSH; |
| 148 | |
| 149 | cs_struct *ud = (cs_struct *)(uintptr_t)handle; |
| 150 | |
| 151 | switch (ud->arch) { |
| 152 | case CS_ARCH_X86: |
| 153 | break; |
| 154 | case CS_ARCH_ARM: |
| 155 | case CS_ARCH_MIPS: |
| 156 | case CS_ARCH_ARM64: |
| 157 | free(ud->printer_info); |
| 158 | break; |
| 159 | default: // unsupported architecture |
| 160 | return CS_ERR_HANDLE; |
| 161 | } |
| 162 | |
| 163 | memset(ud, 0, sizeof(*ud)); |
| 164 | free(ud); |
| 165 | |
| 166 | return CS_ERR_OK; |
| 167 | } |
| 168 | |
| 169 | // fill insn with mnemonic & operands info |
| 170 | static void fill_insn(cs_struct *handle, cs_insn *insn, char *buffer, MCInst *mci, |
| 171 | PostPrinter_t printer) |
| 172 | { |
| 173 | memcpy(insn, &mci->pub_insn, sizeof(*insn)); |
| 174 | |
| 175 | // map internal instruction opcode to public insn ID |
Nguyen Anh Quynh | ad61c49 | 2013-11-30 16:23:31 +0800 | [diff] [blame] | 176 | if (handle->insn_id) |
| 177 | handle->insn_id(insn, MCInst_getOpcode(mci)); |
| 178 | |
| 179 | // alias instruction might have ID saved in OpcodePub |
Nguyen Anh Quynh | 6b7abe3 | 2013-11-30 00:54:24 +0800 | [diff] [blame] | 180 | if (MCInst_getOpcodePub(mci)) |
Nguyen Anh Quynh | ad61c49 | 2013-11-30 16:23:31 +0800 | [diff] [blame] | 181 | insn->id = MCInst_getOpcodePub(mci); |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 182 | |
| 183 | if (printer) |
| 184 | printer(insn->id, insn, buffer); |
| 185 | |
| 186 | // fill in mnemonic & operands |
| 187 | char *tab = strchr(buffer, '\t'); |
| 188 | if (tab) { |
| 189 | *tab = '\0'; |
| 190 | strncpy(insn->op_str, tab + 1, sizeof(insn->op_str) - 1); |
| 191 | insn->op_str[sizeof(insn->op_str) - 1] = '\0'; |
| 192 | } else |
| 193 | insn->op_str[0] = '\0'; |
| 194 | |
| 195 | strncpy(insn->mnemonic, buffer, sizeof(insn->mnemonic) - 1); |
| 196 | insn->mnemonic[sizeof(insn->mnemonic) - 1] = '\0'; |
| 197 | } |
| 198 | |
Nguyen Anh Quynh | 01aba00 | 2013-12-03 21:00:09 +0800 | [diff] [blame^] | 199 | cs_err cs_option(csh ud, unsigned int option) |
| 200 | { |
| 201 | cs_struct *handle = (cs_struct *)(uintptr_t)ud; |
| 202 | if (!handle) |
| 203 | return CS_ERR_CSH; |
| 204 | |
| 205 | if (option & CS_OPT_X86_INTEL) |
| 206 | handle->printer = X86_Intel_printInst; |
| 207 | |
| 208 | if (option & CS_OPT_X86_ATT) |
| 209 | handle->printer = X86_ATT_printInst; |
| 210 | |
| 211 | return CS_ERR_OK; |
| 212 | } |
| 213 | |
pancake | c04f873 | 2013-12-03 02:51:46 +0100 | [diff] [blame] | 214 | size_t cs_disasm(csh ud, unsigned char *buffer, size_t size, uint64_t offset, size_t count, cs_insn *insn) |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 215 | { |
| 216 | cs_struct *handle = (cs_struct *)(uintptr_t)ud; |
| 217 | MCInst mci; |
| 218 | uint16_t insn_size; |
Nguyen Anh Quynh | b42a657 | 2013-11-29 17:40:07 +0800 | [diff] [blame] | 219 | size_t c = 0; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 220 | |
| 221 | if (!handle) { |
| 222 | // FIXME: handle this case? |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 223 | // handle->errnum = CS_ERR_HANDLE; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 224 | return 0; |
| 225 | } |
| 226 | |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 227 | handle->errnum = CS_ERR_OK; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 228 | |
| 229 | while (size > 0) { |
| 230 | MCInst_Init(&mci); |
| 231 | |
| 232 | bool r = handle->disasm(ud, buffer, size, &mci, &insn_size, offset, handle->getinsn_info); |
| 233 | if (r) { |
| 234 | SStream ss; |
| 235 | SStream_Init(&ss); |
| 236 | |
| 237 | mci.pub_insn.size = insn_size; |
| 238 | mci.pub_insn.address = offset; |
| 239 | mci.mode = handle->mode; |
| 240 | handle->printer(&mci, &ss, handle->printer_info); |
| 241 | |
| 242 | fill_insn(handle, insn, ss.buffer, &mci, handle->post_printer); |
| 243 | |
| 244 | c++; |
| 245 | insn++; |
| 246 | buffer += insn_size; |
| 247 | size -= insn_size; |
| 248 | offset += insn_size; |
| 249 | |
| 250 | if (count > 0) { |
| 251 | if (c == count) |
| 252 | return c; |
| 253 | } |
| 254 | } else // face a broken instruction? |
| 255 | return c; |
| 256 | } |
| 257 | |
| 258 | return c; |
| 259 | } |
| 260 | |
| 261 | // dynamicly allocate memory to contain disasm insn |
| 262 | // NOTE: caller must free() the allocated memory itself to avoid memory leaking |
pancake | c04f873 | 2013-12-03 02:51:46 +0100 | [diff] [blame] | 263 | size_t cs_disasm_dyn(csh ud, unsigned char *buffer, size_t size, uint64_t offset, size_t count, cs_insn **insn) |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 264 | { |
| 265 | cs_struct *handle = (cs_struct *)(uintptr_t)ud; |
| 266 | MCInst mci; |
| 267 | uint16_t insn_size; |
Nguyen Anh Quynh | b42a657 | 2013-11-29 17:40:07 +0800 | [diff] [blame] | 268 | size_t c = 0, f = 0; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 269 | cs_insn insn_cache[64]; |
| 270 | void *total = NULL; |
Nguyen Anh Quynh | b42a657 | 2013-11-29 17:40:07 +0800 | [diff] [blame] | 271 | size_t total_size = 0; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 272 | |
| 273 | if (!handle) { |
| 274 | // FIXME: how to handle this case: |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 275 | // handle->errnum = CS_ERR_HANDLE; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 276 | return 0; |
| 277 | } |
| 278 | |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 279 | handle->errnum = CS_ERR_OK; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 280 | |
| 281 | while (size > 0) { |
| 282 | MCInst_Init(&mci); |
| 283 | |
| 284 | bool r = handle->disasm(ud, buffer, size, &mci, &insn_size, offset, handle->getinsn_info); |
| 285 | if (r) { |
| 286 | SStream ss; |
| 287 | SStream_Init(&ss); |
| 288 | |
| 289 | mci.pub_insn.size = insn_size; |
| 290 | mci.pub_insn.address = offset; |
| 291 | mci.mode = handle->mode; |
| 292 | handle->printer(&mci, &ss, handle->printer_info); |
| 293 | |
| 294 | fill_insn(handle, &insn_cache[f], ss.buffer, &mci, handle->post_printer); |
| 295 | f++; |
| 296 | |
| 297 | if (f == ARR_SIZE(insn_cache)) { |
| 298 | // resize total to contain newly disasm insns |
| 299 | total_size += sizeof(insn_cache); |
| 300 | void *tmp = realloc(total, total_size); |
| 301 | if (tmp == NULL) { // insufficient memory |
| 302 | free(total); |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 303 | handle->errnum = CS_ERR_MEM; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 304 | return 0; |
| 305 | } |
| 306 | |
| 307 | total = tmp; |
| 308 | memcpy(total + total_size - sizeof(insn_cache), insn_cache, sizeof(insn_cache)); |
| 309 | // reset f back to 0 |
| 310 | f = 0; |
| 311 | } |
| 312 | |
| 313 | c++; |
| 314 | buffer += insn_size; |
| 315 | size -= insn_size; |
| 316 | offset += insn_size; |
| 317 | |
| 318 | if (count > 0 && c == count) |
| 319 | break; |
| 320 | } else // encounter a broken instruction |
| 321 | break; |
| 322 | } |
| 323 | |
| 324 | if (f) { |
| 325 | // resize total to contain newly disasm insns |
| 326 | void *tmp = realloc(total, total_size + f * sizeof(insn_cache[0])); |
| 327 | if (tmp == NULL) { // insufficient memory |
| 328 | free(total); |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 329 | handle->errnum = CS_ERR_MEM; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 330 | return 0; |
| 331 | } |
| 332 | |
| 333 | total = tmp; |
| 334 | memcpy(total + total_size, insn_cache, f * sizeof(insn_cache[0])); |
| 335 | } |
| 336 | |
| 337 | *insn = total; |
| 338 | |
| 339 | return c; |
| 340 | } |
| 341 | |
| 342 | void cs_free(void *m) |
| 343 | { |
| 344 | free(m); |
| 345 | } |
| 346 | |
| 347 | // return friendly name of regiser in a string |
| 348 | char *cs_reg_name(csh ud, unsigned int reg) |
| 349 | { |
| 350 | cs_struct *handle = (cs_struct *)(uintptr_t)ud; |
| 351 | |
| 352 | if (!handle || handle->reg_name == NULL) { |
| 353 | return NULL; |
| 354 | } |
| 355 | |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 356 | return handle->reg_name(reg); |
| 357 | } |
| 358 | |
| 359 | char *cs_insn_name(csh ud, unsigned int insn) |
| 360 | { |
| 361 | cs_struct *handle = (cs_struct *)(uintptr_t)ud; |
| 362 | |
| 363 | if (!handle || handle->insn_name == NULL) { |
| 364 | return NULL; |
| 365 | } |
| 366 | |
| 367 | return handle->insn_name(insn); |
| 368 | } |
| 369 | |
| 370 | static bool arr_exist(unsigned int *arr, int max, unsigned int id) |
| 371 | { |
| 372 | int i; |
| 373 | |
| 374 | for (i = 0; i < max; i++) { |
| 375 | if (arr[i] == id) |
| 376 | return true; |
| 377 | } |
| 378 | |
| 379 | return false; |
| 380 | } |
| 381 | |
| 382 | bool cs_insn_group(csh handle, cs_insn *insn, unsigned int group_id) |
| 383 | { |
| 384 | if (!handle) |
| 385 | return false; |
| 386 | |
Nguyen Anh Quynh | f35e2ad | 2013-12-03 11:10:26 +0800 | [diff] [blame] | 387 | return arr_exist(insn->groups, insn->groups_count, group_id); |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 388 | } |
| 389 | |
| 390 | bool cs_reg_read(csh handle, cs_insn *insn, unsigned int reg_id) |
| 391 | { |
| 392 | if (!handle) |
| 393 | return false; |
| 394 | |
Nguyen Anh Quynh | f35e2ad | 2013-12-03 11:10:26 +0800 | [diff] [blame] | 395 | return arr_exist(insn->regs_read, insn->regs_read_count, reg_id); |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 396 | } |
| 397 | |
| 398 | bool cs_reg_write(csh handle, cs_insn *insn, unsigned int reg_id) |
| 399 | { |
| 400 | if (!handle) |
| 401 | return false; |
| 402 | |
Nguyen Anh Quynh | f35e2ad | 2013-12-03 11:10:26 +0800 | [diff] [blame] | 403 | return arr_exist(insn->regs_write, insn->regs_write_count, reg_id); |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 404 | } |
| 405 | |
| 406 | int cs_op_count(csh ud, cs_insn *insn, unsigned int op_type) |
| 407 | { |
| 408 | if (!ud) |
| 409 | return -1; |
| 410 | |
| 411 | cs_struct *handle = (cs_struct *)(uintptr_t)ud; |
| 412 | unsigned int count = 0, i; |
| 413 | |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 414 | handle->errnum = CS_ERR_OK; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 415 | |
| 416 | switch (handle->arch) { |
| 417 | default: |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 418 | handle->errnum = CS_ERR_HANDLE; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 419 | return -1; |
| 420 | case CS_ARCH_ARM: |
| 421 | for (i = 0; i < insn->arm.op_count; i++) |
| 422 | if (insn->arm.operands[i].type == op_type) |
| 423 | count++; |
| 424 | break; |
| 425 | case CS_ARCH_ARM64: |
| 426 | for (i = 0; i < insn->arm64.op_count; i++) |
| 427 | if (insn->arm64.operands[i].type == op_type) |
| 428 | count++; |
| 429 | break; |
| 430 | case CS_ARCH_X86: |
| 431 | for (i = 0; i < insn->x86.op_count; i++) |
| 432 | if (insn->x86.operands[i].type == op_type) |
| 433 | count++; |
| 434 | break; |
| 435 | case CS_ARCH_MIPS: |
| 436 | for (i = 0; i < insn->mips.op_count; i++) |
| 437 | if (insn->mips.operands[i].type == op_type) |
| 438 | count++; |
| 439 | break; |
| 440 | } |
| 441 | |
| 442 | return count; |
| 443 | } |
| 444 | |
| 445 | int cs_op_index(csh ud, cs_insn *insn, unsigned int op_type, |
| 446 | unsigned int post) |
| 447 | { |
| 448 | if (!ud) |
| 449 | return -1; |
| 450 | |
| 451 | cs_struct *handle = (cs_struct *)(uintptr_t)ud; |
| 452 | unsigned int count = 0, i; |
| 453 | |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 454 | handle->errnum = CS_ERR_OK; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 455 | |
| 456 | switch (handle->arch) { |
| 457 | default: |
Nguyen Anh Quynh | 3eb9ac9 | 2013-11-27 15:24:47 +0800 | [diff] [blame] | 458 | handle->errnum = CS_ERR_HANDLE; |
Nguyen Anh Quynh | 26ee41a | 2013-11-27 12:11:31 +0800 | [diff] [blame] | 459 | return -1; |
| 460 | case CS_ARCH_ARM: |
| 461 | for (i = 0; i < insn->arm.op_count; i++) { |
| 462 | if (insn->arm.operands[i].type == op_type) |
| 463 | count++; |
| 464 | if (count == post) |
| 465 | return i; |
| 466 | } |
| 467 | break; |
| 468 | case CS_ARCH_ARM64: |
| 469 | for (i = 0; i < insn->arm64.op_count; i++) { |
| 470 | if (insn->arm64.operands[i].type == op_type) |
| 471 | count++; |
| 472 | if (count == post) |
| 473 | return i; |
| 474 | } |
| 475 | break; |
| 476 | case CS_ARCH_X86: |
| 477 | for (i = 0; i < insn->x86.op_count; i++) { |
| 478 | if (insn->x86.operands[i].type == op_type) |
| 479 | count++; |
| 480 | if (count == post) |
| 481 | return i; |
| 482 | } |
| 483 | break; |
| 484 | case CS_ARCH_MIPS: |
| 485 | for (i = 0; i < insn->mips.op_count; i++) { |
| 486 | if (insn->mips.operands[i].type == op_type) |
| 487 | count++; |
| 488 | if (count == post) |
| 489 | return i; |
| 490 | } |
| 491 | break; |
| 492 | } |
| 493 | |
| 494 | return -1; |
| 495 | } |