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Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +08001/* Capstone Disassembler Engine */
2/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013> */
3
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +08004#include <stddef.h>
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +08005#include <stdio.h>
6#include <stdlib.h>
7#include <string.h>
8#include <capstone.h>
9
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +080010#include "utils.h"
Nguyen Anh Quynhc7404072014-01-05 11:35:47 +080011#include "MCRegisterInfo.h"
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +080012
Nguyen Anh Quynh5ee2b452014-03-07 08:40:35 +080013#ifdef USE_SYS_DYN_MEM
Nguyen Anh Quynh472a4a42014-03-06 09:13:04 +080014#define INSN_CACHE_SIZE 32
Nguyen Anh Quynha836b752014-03-06 03:36:03 +080015#else
Nguyen Anh Quynh5ee2b452014-03-07 08:40:35 +080016// reduce stack variable size for kernel/firmware
Nguyen Anh Quynha836b752014-03-06 03:36:03 +080017#define INSN_CACHE_SIZE 8
18#endif
Nguyen Anh Quynhc34959b2014-01-22 09:46:42 +080019
Nguyen Anh Quynhd3ffe372014-04-09 23:49:30 +080020// default SKIPDATA mnemonic
Nguyen Anh Quynhc75a9092014-04-10 10:26:49 +080021#define SKIPDATA_MNEM ".byte"
Nguyen Anh Quynhd3ffe372014-04-09 23:49:30 +080022
Nguyen Anh Quynh42c6b1a2013-12-30 00:15:25 +080023cs_err (*arch_init[MAX_ARCH])(cs_struct *) = { NULL };
Nguyen Anh Quynhee143c82014-01-03 21:51:59 +080024cs_err (*arch_option[MAX_ARCH]) (cs_struct *, cs_opt_type, size_t value) = { NULL };
25void (*arch_destroy[MAX_ARCH]) (cs_struct *) = { NULL };
Nguyen Anh Quynhf1851802013-12-21 12:16:47 +080026
Nguyen Anh Quynhc272e9d2014-01-19 12:03:22 +080027extern void ARM_enable(void);
28extern void AArch64_enable(void);
29extern void Mips_enable(void);
30extern void X86_enable(void);
31extern void PPC_enable(void);
Nguyen Anh Quynh05e27132014-03-10 11:58:57 +080032extern void Sparc_enable(void);
Nguyen Anh Quynh48a14ca2014-03-23 08:35:45 +080033extern void SystemZ_enable(void);
danghvu701b8502014-01-09 11:06:44 +070034
Nguyen Anh Quynhc272e9d2014-01-19 12:03:22 +080035static void archs_enable(void)
Nguyen Anh Quynh625b5bc2014-01-09 14:33:56 +080036{
Nguyen Anh Quynhc272e9d2014-01-19 12:03:22 +080037 static bool initialized = false;
38
39 if (initialized)
40 return;
41
danghvub33bd2c2014-01-09 12:22:56 +070042#ifdef CAPSTONE_HAS_ARM
Nguyen Anh Quynhc272e9d2014-01-19 12:03:22 +080043 ARM_enable();
danghvub33bd2c2014-01-09 12:22:56 +070044#endif
45#ifdef CAPSTONE_HAS_ARM64
Nguyen Anh Quynhc272e9d2014-01-19 12:03:22 +080046 AArch64_enable();
danghvub33bd2c2014-01-09 12:22:56 +070047#endif
48#ifdef CAPSTONE_HAS_MIPS
Nguyen Anh Quynhc272e9d2014-01-19 12:03:22 +080049 Mips_enable();
danghvub33bd2c2014-01-09 12:22:56 +070050#endif
danghvub33bd2c2014-01-09 12:22:56 +070051#ifdef CAPSTONE_HAS_POWERPC
Nguyen Anh Quynhc272e9d2014-01-19 12:03:22 +080052 PPC_enable();
danghvub33bd2c2014-01-09 12:22:56 +070053#endif
Nguyen Anh Quynh05e27132014-03-10 11:58:57 +080054#ifdef CAPSTONE_HAS_SPARC
55 Sparc_enable();
56#endif
Nguyen Anh Quynh48a14ca2014-03-23 08:35:45 +080057#ifdef CAPSTONE_HAS_SYSZ
58 SystemZ_enable();
59#endif
Nguyen Anh Quynh05e27132014-03-10 11:58:57 +080060#ifdef CAPSTONE_HAS_X86
61 X86_enable();
62#endif
Nguyen Anh Quynhc272e9d2014-01-19 12:03:22 +080063
64 initialized = true;
danghvub33bd2c2014-01-09 12:22:56 +070065}
66
Nguyen Anh Quynh39a42ed2013-12-22 10:40:58 +080067unsigned int all_arch = 0;
Nguyen Anh Quynhf1851802013-12-21 12:16:47 +080068
Nguyen Anh Quynh59492c22014-01-05 23:41:31 +080069#ifdef USE_SYS_DYN_MEM
Nguyen Anh Quynha8eb7a52014-01-11 12:55:31 +080070cs_malloc_t cs_mem_malloc = malloc;
71cs_calloc_t cs_mem_calloc = calloc;
72cs_realloc_t cs_mem_realloc = realloc;
73cs_free_t cs_mem_free = free;
Nguyen Anh Quynhedeeb042014-01-15 20:44:03 +080074cs_vsnprintf_t cs_vsnprintf = vsnprintf;
Nguyen Anh Quynh59492c22014-01-05 23:41:31 +080075#else
Nguyen Anh Quynha8eb7a52014-01-11 12:55:31 +080076cs_malloc_t cs_mem_malloc = NULL;
77cs_calloc_t cs_mem_calloc = NULL;
78cs_realloc_t cs_mem_realloc = NULL;
79cs_free_t cs_mem_free = NULL;
Nguyen Anh Quynhedeeb042014-01-15 20:44:03 +080080cs_vsnprintf_t cs_vsnprintf = NULL;
Nguyen Anh Quynh59492c22014-01-05 23:41:31 +080081#endif
Nguyen Anh Quynhb8806782013-12-22 15:20:07 +080082
Nguyen Anh Quynhb90cb992013-12-28 13:59:09 +080083unsigned int cs_version(int *major, int *minor)
Nguyen Anh Quynh36df4bb2013-12-10 13:31:20 +080084{
Nguyen Anh Quynhc46c35d2014-03-05 00:21:53 +080085 archs_enable();
86
Nguyen Anh Quynh08777472013-12-22 14:16:28 +080087 if (major != NULL && minor != NULL) {
88 *major = CS_API_MAJOR;
89 *minor = CS_API_MINOR;
90 }
Nguyen Anh Quynh39a42ed2013-12-22 10:40:58 +080091
92 return (CS_API_MAJOR << 8) + CS_API_MINOR;
93}
94
Nguyen Anh Quynhb2870e42014-02-22 23:41:16 +080095bool cs_support(int query)
Nguyen Anh Quynh39a42ed2013-12-22 10:40:58 +080096{
Nguyen Anh Quynhc46c35d2014-03-05 00:21:53 +080097 archs_enable();
98
Nguyen Anh Quynhb2870e42014-02-22 23:41:16 +080099 if (query == CS_ARCH_ALL)
Nguyen Anh Quynh39a42ed2013-12-22 10:40:58 +0800100 return all_arch == ((1 << CS_ARCH_ARM) | (1 << CS_ARCH_ARM64) |
Nguyen Anh Quynh42c6b1a2013-12-30 00:15:25 +0800101 (1 << CS_ARCH_MIPS) | (1 << CS_ARCH_X86) |
Nguyen Anh Quynh48a14ca2014-03-23 08:35:45 +0800102 (1 << CS_ARCH_PPC) | (1 << CS_ARCH_SPARC) |
103 (1 << CS_ARCH_SYSZ));
Nguyen Anh Quynh39a42ed2013-12-22 10:40:58 +0800104
Nguyen Anh Quynh48d58322014-02-27 13:54:28 +0800105 if ((unsigned int)query < CS_ARCH_MAX)
Nguyen Anh Quynhb2870e42014-02-22 23:41:16 +0800106 return all_arch & (1 << query);
107
108 if (query == CS_SUPPORT_DIET) {
109#ifdef CAPSTONE_DIET
110 return true;
111#else
112 return false;
113#endif
114 }
115
Nguyen Anh Quynh59b54892014-03-27 10:54:44 +0800116 if (query == CS_SUPPORT_X86_REDUCE) {
117#if defined(CAPSTONE_HAS_X86) && defined(CAPSTONE_X86_REDUCE)
Nguyen Anh Quynh95181482014-03-25 23:20:41 +0800118 return true;
119#else
120 return false;
121#endif
122 }
123
Nguyen Anh Quynhb2870e42014-02-22 23:41:16 +0800124 // unsupported query
125 return false;
Nguyen Anh Quynh36df4bb2013-12-10 13:31:20 +0800126}
127
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800128cs_err cs_errno(csh handle)
129{
130 if (!handle)
131 return CS_ERR_CSH;
132
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800133 struct cs_struct *ud = (struct cs_struct *)(uintptr_t)handle;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800134
Nguyen Anh Quynh3eb9ac92013-11-27 15:24:47 +0800135 return ud->errnum;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800136}
137
Nguyen Anh Quynh34f96382014-01-03 22:49:07 +0800138const char *cs_strerror(cs_err code)
139{
140 switch(code) {
141 default:
142 return "Unknown error code";
143 case CS_ERR_OK:
144 return "OK (CS_ERR_OK)";
145 case CS_ERR_MEM:
146 return "Out of memory (CS_ERR_MEM)";
147 case CS_ERR_ARCH:
148 return "Invalid architecture (CS_ERR_ARCH)";
149 case CS_ERR_HANDLE:
150 return "Invalid handle (CS_ERR_HANDLE)";
151 case CS_ERR_CSH:
152 return "Invalid csh (CS_ERR_CSH)";
153 case CS_ERR_MODE:
154 return "Invalid mode (CS_ERR_MODE)";
155 case CS_ERR_OPTION:
156 return "Invalid option (CS_ERR_OPTION)";
157 case CS_ERR_DETAIL:
158 return "Details are unavailable (CS_ERR_DETAIL)";
Nguyen Anh Quynhc52352d2014-01-06 09:06:30 +0800159 case CS_ERR_MEMSETUP:
160 return "Dynamic memory management uninitialized (CS_ERR_MEMSETUP)";
Nguyen Anh Quynh4f220282014-02-09 00:19:15 +0800161 case CS_ERR_VERSION:
162 return "Different API version between core & binding (CS_ERR_VERSION)";
Nguyen Anh Quynhf7cdbdf2014-02-24 16:47:36 +0800163 case CS_ERR_DIET:
164 return "Information irrelevant in diet engine (CS_ERR_DIET)";
Nguyen Anh Quynh34f96382014-01-03 22:49:07 +0800165 }
166}
167
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800168cs_err cs_open(cs_arch arch, cs_mode mode, csh *handle)
169{
Nguyen Anh Quynhedeeb042014-01-15 20:44:03 +0800170 if (!cs_mem_malloc || !cs_mem_calloc || !cs_mem_realloc || !cs_mem_free || !cs_vsnprintf)
Nguyen Anh Quynhc52352d2014-01-06 09:06:30 +0800171 // Error: before cs_open(), dynamic memory management must be initialized
172 // with cs_option(CS_OPT_MEM)
173 return CS_ERR_MEMSETUP;
174
Nguyen Anh Quynhc272e9d2014-01-19 12:03:22 +0800175 archs_enable();
176
Nguyen Anh Quynh8f7ab492014-01-06 09:52:57 +0800177 if (arch < CS_ARCH_MAX && arch_init[arch]) {
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800178 struct cs_struct *ud;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800179
Nguyen Anh Quynha8eb7a52014-01-11 12:55:31 +0800180 ud = cs_mem_calloc(1, sizeof(*ud));
Nguyen Anh Quynh8f7ab492014-01-06 09:52:57 +0800181 if (!ud) {
182 // memory insufficient
183 return CS_ERR_MEM;
184 }
185
Nguyen Anh Quynh9a197b32013-12-22 13:41:38 +0800186 ud->errnum = CS_ERR_OK;
187 ud->arch = arch;
188 ud->mode = mode;
189 ud->big_endian = mode & CS_MODE_BIG_ENDIAN;
Nguyen Anh Quynh39b812d2014-01-07 23:36:26 +0800190 // by default, do not break instruction into details
191 ud->detail = CS_OPT_OFF;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800192
Nguyen Anh Quynhd3ffe372014-04-09 23:49:30 +0800193 // default skipdata setup
194 ud->skipdata_setup.mnemonic = SKIPDATA_MNEM;
195
Nguyen Anh Quynh06b3c052014-01-21 15:26:02 +0800196 cs_err err = arch_init[ud->arch](ud);
197 if (err) {
198 cs_mem_free(ud);
199 *handle = 0;
200 return err;
201 }
Nguyen Anh Quynh8f7ab492014-01-06 09:52:57 +0800202
203 *handle = (uintptr_t)ud;
204
205 return CS_ERR_OK;
Nguyen Anh Quynh9a197b32013-12-22 13:41:38 +0800206 } else {
207 *handle = 0;
208 return CS_ERR_ARCH;
209 }
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800210}
211
Nguyen Anh Quynh226d7dc2014-02-27 22:20:39 +0800212cs_err cs_close(csh *handle)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800213{
Nguyen Anh Quynhef3d04d2014-02-27 23:42:49 +0800214 if (*handle == 0)
Nguyen Anh Quynh226d7dc2014-02-27 22:20:39 +0800215 // invalid handle
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800216 return CS_ERR_CSH;
217
Nguyen Anh Quynh226d7dc2014-02-27 22:20:39 +0800218 struct cs_struct *ud = (struct cs_struct *)(*handle);
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800219
Nguyen Anh Quynhfbe10a52014-02-27 23:59:08 +0800220 if (ud->printer_info)
221 cs_mem_free(ud->printer_info);
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800222
Nguyen Anh Quynh9fac5122014-01-07 10:56:04 +0800223 // arch_destroy[ud->arch](ud);
Nguyen Anh Quynhb2654062014-01-03 17:08:58 +0800224
Nguyen Anh Quynha8eb7a52014-01-11 12:55:31 +0800225 cs_mem_free(ud->insn_cache);
Nguyen Anh Quynhee143c82014-01-03 21:51:59 +0800226 memset(ud, 0, sizeof(*ud));
Nguyen Anh Quynha8eb7a52014-01-11 12:55:31 +0800227 cs_mem_free(ud);
Nguyen Anh Quynhee143c82014-01-03 21:51:59 +0800228
Nguyen Anh Quynhc8e07852014-02-28 09:38:11 +0800229 // invalidate this handle by ZERO out its value.
230 // this is to make sure it is unusable after cs_close()
Nguyen Anh Quynh226d7dc2014-02-27 22:20:39 +0800231 *handle = 0;
232
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800233 return CS_ERR_OK;
234}
235
Nguyen Anh Quynh8f13f3c2013-12-04 22:57:04 +0800236#define MIN(x, y) ((x) < (y) ? (x) : (y))
237
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800238// fill insn with mnemonic & operands info
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800239static void fill_insn(struct cs_struct *handle, cs_insn *insn, char *buffer, MCInst *mci,
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800240 PostPrinter_t postprinter, const uint8_t *code)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800241{
Nguyen Anh Quynha209e672013-12-14 00:23:41 +0800242 if (handle->detail) {
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800243 // avoiding copy insn->detail
244 memcpy(insn, &mci->flat_insn, sizeof(*insn) - sizeof(insn->detail));
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800245
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800246 // NOTE: copy details in 2 chunks, since union is always put at address divisible by 8
247 // copy from @regs_read until @arm
248 memcpy(insn->detail, (void *)(&(mci->flat_insn)) + offsetof(cs_insn_flat, regs_read),
249 offsetof(cs_detail, arm) - offsetof(cs_detail, regs_read));
250 // then copy from @arm until end
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800251 memcpy((void *)((uintptr_t)(insn->detail) + offsetof(cs_detail, arm)),
252 (void *)((uintptr_t)(&(mci->flat_insn)) + offsetof(cs_insn_flat, arm)),
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800253 sizeof(cs_detail) - offsetof(cs_detail, arm));
Nguyen Anh Quynha209e672013-12-14 00:23:41 +0800254 } else {
255 insn->address = mci->address;
Alex Ionescu46018db2014-01-22 09:45:00 -0800256 insn->size = (uint16_t)mci->insn_size;
Nguyen Anh Quynha209e672013-12-14 00:23:41 +0800257 }
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800258
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800259 // fill the instruction bytes
260 memcpy(insn->bytes, code, MIN(sizeof(insn->bytes), insn->size));
261
Nguyen Anh Quynh4d3e8522013-12-14 10:45:09 +0800262 // map internal instruction opcode to public insn ID
263 if (handle->insn_id)
Nguyen Anh Quynh1acfd0b2014-01-06 10:56:59 +0800264 handle->insn_id(handle, insn, MCInst_getOpcode(mci));
Nguyen Anh Quynh4d3e8522013-12-14 10:45:09 +0800265
266 // alias instruction might have ID saved in OpcodePub
267 if (MCInst_getOpcodePub(mci))
268 insn->id = MCInst_getOpcodePub(mci);
269
270 // post printer handles some corner cases (hacky)
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800271 if (postprinter)
272 postprinter((csh)handle, insn, buffer);
Nguyen Anh Quynh4d3e8522013-12-14 10:45:09 +0800273
Nguyen Anh Quynhfc83a432014-02-22 23:26:27 +0800274#ifndef CAPSTONE_DIET
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800275 // fill in mnemonic & operands
Nguyen Anh Quynhdefb9bc2013-12-12 14:00:12 +0800276 // find first space or tab
277 char *sp = buffer;
278 for (sp = buffer; *sp; sp++)
279 if (*sp == ' '||*sp == '\t')
280 break;
281 if (*sp) {
282 *sp = '\0';
Nguyen Anh Quynh86dc3932013-12-12 14:43:39 +0800283 // find the next non-space char
284 sp++;
285 for (; ((*sp == ' ') || (*sp == '\t')); sp++);
286 strncpy(insn->op_str, sp, sizeof(insn->op_str) - 1);
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800287 insn->op_str[sizeof(insn->op_str) - 1] = '\0';
288 } else
289 insn->op_str[0] = '\0';
290
291 strncpy(insn->mnemonic, buffer, sizeof(insn->mnemonic) - 1);
292 insn->mnemonic[sizeof(insn->mnemonic) - 1] = '\0';
Nguyen Anh Quynhfc83a432014-02-22 23:26:27 +0800293#endif
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800294}
295
Nguyen Anh Quynhd3ffe372014-04-09 23:49:30 +0800296// how many bytes will we skip when encountering data (CS_OPT_SKIPDATA)?
297static uint8_t skipdata_size(cs_struct *handle)
298{
299 switch(handle->arch) {
300 default:
301 // should never reach
302 return -1;
303 case CS_ARCH_ARM:
304 case CS_ARCH_ARM64:
305 case CS_ARCH_MIPS:
306 case CS_ARCH_PPC:
307 case CS_ARCH_SPARC:
308 case CS_ARCH_SYSZ:
309 // skip 2 bytes due to instruction alignment
310 return 2;
311 case CS_ARCH_X86:
312 // X86 has no restriction on instruction alignment
313 return 1;
314 }
315}
316
Nguyen Anh Quynhda8adad2013-12-04 09:44:07 +0800317cs_err cs_option(csh ud, cs_opt_type type, size_t value)
Nguyen Anh Quynh01aba002013-12-03 21:00:09 +0800318{
Nguyen Anh Quynhc46c35d2014-03-05 00:21:53 +0800319 archs_enable();
320
Nguyen Anh Quynh24bf0d92014-01-05 11:19:04 +0800321 // cs_option() can be called with NULL handle just for CS_OPT_MEM
322 // This is supposed to be executed before all other APIs (even cs_open())
323 if (type == CS_OPT_MEM) {
324 cs_opt_mem *mem = (cs_opt_mem *)value;
325
Nguyen Anh Quynha8eb7a52014-01-11 12:55:31 +0800326 cs_mem_malloc = mem->malloc;
327 cs_mem_calloc = mem->calloc;
328 cs_mem_realloc = mem->realloc;
329 cs_mem_free = mem->free;
Nguyen Anh Quynhedeeb042014-01-15 20:44:03 +0800330 cs_vsnprintf = mem->vsnprintf;
Nguyen Anh Quynh24bf0d92014-01-05 11:19:04 +0800331
332 return CS_ERR_OK;
333 }
334
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800335 struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud;
danghvu2b192962013-12-19 22:40:28 -0600336 if (!handle)
337 return CS_ERR_CSH;
Nguyen Anh Quynh01aba002013-12-03 21:00:09 +0800338
Nguyen Anh Quynhd3ffe372014-04-09 23:49:30 +0800339 switch(type) {
340 default:
341 break;
342 case CS_OPT_DETAIL:
343 handle->detail = value;
344 return CS_ERR_OK;
345 case CS_OPT_SKIPDATA:
346 handle->skipdata = (value == CS_OPT_ON);
347 if (handle->skipdata) {
348 if (handle->skipdata_size == 0) {
349 // set the default skipdata size
350 handle->skipdata_size = skipdata_size(handle);
351 }
352 }
353 return CS_ERR_OK;
354 case CS_OPT_SKIPDATA_SETUP:
355 if (value)
356 handle->skipdata_setup = *((cs_opt_skipdata *)value);
357 return CS_ERR_OK;
Nguyen Anh Quynh7d02c922013-12-21 09:59:31 +0800358 }
Nguyen Anh Quynha209e672013-12-14 00:23:41 +0800359
Nguyen Anh Quynhd3458392013-12-22 11:10:56 +0800360 return arch_option[handle->arch](handle, type, value);
Nguyen Anh Quynh01aba002013-12-03 21:00:09 +0800361}
362
Nguyen Anh Quynh7772d852014-01-21 11:49:25 +0800363// get previous instruction, which can be in the cache, or in total buffer
364static cs_insn *get_prev_insn(cs_insn *cache, unsigned int f, void *total, size_t total_size)
365{
366 if (f == 0) {
367 if (total == NULL)
368 return NULL;
Nguyen Anh Quynhc34959b2014-01-22 09:46:42 +0800369 // get the trailing insn from total buffer, which is at
370 // the end of the latest cache trunk
Alex Ionescu46018db2014-01-22 09:45:00 -0800371 return (cs_insn *)((void*)((uintptr_t)total + total_size - sizeof(cs_insn)));
Nguyen Anh Quynh7772d852014-01-21 11:49:25 +0800372 } else
373 return &cache[f - 1];
374}
375
Nguyen Anh Quynhd3ffe372014-04-09 23:49:30 +0800376static void skipdata_opstr(char *opstr, const uint8_t *buffer, size_t size)
377{
378 char *p = opstr;
379 int len;
380 size_t i;
381
382 if (!size) {
383 opstr[0] = '\0';
384 return;
385 }
386
387 len = sprintf(p, "0x%02x", buffer[0]);
388 p+= len;
389
390 for(i = 1; i < size; i++) {
391 len = sprintf(p, ", 0x%02x", buffer[i]);
392 p+= len;
393 }
394}
395
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800396// dynamicly allocate memory to contain disasm insn
397// NOTE: caller must free() the allocated memory itself to avoid memory leaking
Nguyen Anh Quynh04c19be2013-12-25 13:26:22 +0800398size_t cs_disasm_ex(csh ud, const uint8_t *buffer, size_t size, uint64_t offset, size_t count, cs_insn **insn)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800399{
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800400 struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800401 MCInst mci;
402 uint16_t insn_size;
Nguyen Anh Quynh7772d852014-01-21 11:49:25 +0800403 size_t c = 0;
404 unsigned int f = 0;
Nguyen Anh Quynhc34959b2014-01-22 09:46:42 +0800405 cs_insn insn_cache[INSN_CACHE_SIZE];
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800406 void *total = NULL;
Nguyen Anh Quynhb42a6572013-11-29 17:40:07 +0800407 size_t total_size = 0;
Nguyen Anh Quynh034a7482014-03-06 22:40:08 +0800408 bool r;
Nguyen Anh Quynhd3ffe372014-04-09 23:49:30 +0800409 void *tmp;
410 size_t skipdata_bytes;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800411
Nguyen Anh Quynh5848aaa2014-02-27 11:10:41 +0800412 if (!handle) {
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800413 // FIXME: how to handle this case:
Nguyen Anh Quynh3eb9ac92013-11-27 15:24:47 +0800414 // handle->errnum = CS_ERR_HANDLE;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800415 return 0;
416 }
417
Nguyen Anh Quynh3eb9ac92013-11-27 15:24:47 +0800418 handle->errnum = CS_ERR_OK;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800419
Nguyen Anh Quynh11b05192014-01-22 11:04:25 +0800420 // reset previous prefix for X86
421 handle->prev_prefix = 0;
422
Nguyen Anh Quynh4d3e8522013-12-14 10:45:09 +0800423 memset(insn_cache, 0, sizeof(insn_cache));
424
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800425 while (size > 0) {
danghvu2b192962013-12-19 22:40:28 -0600426 MCInst_Init(&mci);
Nguyen Anh Quynh42c6b1a2013-12-30 00:15:25 +0800427 mci.csh = handle;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800428
Nguyen Anh Quynh034a7482014-03-06 22:40:08 +0800429 r = handle->disasm(ud, buffer, size, &mci, &insn_size, offset, handle->getinsn_info);
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800430 if (r) {
431 SStream ss;
432 SStream_Init(&ss);
433
Nguyen Anh Quynha209e672013-12-14 00:23:41 +0800434 // relative branches need to know the address & size of current insn
435 mci.insn_size = insn_size;
436 mci.address = offset;
437
Nguyen Anh Quynh4d3e8522013-12-14 10:45:09 +0800438 if (handle->detail) {
Nguyen Anh Quynh4d3e8522013-12-14 10:45:09 +0800439 // save all the information for non-detailed mode
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800440 mci.flat_insn.address = offset;
441 mci.flat_insn.size = insn_size;
442 // allocate memory for @detail pointer
Nguyen Anh Quynha8eb7a52014-01-11 12:55:31 +0800443 insn_cache[f].detail = cs_mem_calloc(1, sizeof(cs_detail));
Nguyen Anh Quynha209e672013-12-14 00:23:41 +0800444 }
445
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800446 handle->printer(&mci, &ss, handle->printer_info);
447
Joxean114df0e2013-12-04 07:11:32 +0100448 fill_insn(handle, &insn_cache[f], ss.buffer, &mci, handle->post_printer, buffer);
Nguyen Anh Quynha209e672013-12-14 00:23:41 +0800449
Nguyen Anh Quynh7772d852014-01-21 11:49:25 +0800450 if (!handle->check_combine || !handle->check_combine(handle, &insn_cache[f])) {
451 f++;
Nguyen Anh Quynh7772d852014-01-21 11:49:25 +0800452 if (f == ARR_SIZE(insn_cache)) {
453 // resize total to contain newly disasm insns
Nguyen Anh Quynhc34959b2014-01-22 09:46:42 +0800454 total_size += (sizeof(cs_insn) * INSN_CACHE_SIZE);
Nguyen Anh Quynh034a7482014-03-06 22:40:08 +0800455 tmp = cs_mem_realloc(total, total_size);
Nguyen Anh Quynh7772d852014-01-21 11:49:25 +0800456 if (tmp == NULL) { // insufficient memory
457 cs_mem_free(total);
458 handle->errnum = CS_ERR_MEM;
459 return 0;
460 }
461
462 total = tmp;
Alex Ionescu46018db2014-01-22 09:45:00 -0800463 memcpy((void*)((uintptr_t)total + total_size - sizeof(insn_cache)), insn_cache, sizeof(insn_cache));
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800464
Nguyen Anh Quynh7772d852014-01-21 11:49:25 +0800465 // reset f back to 0
466 f = 0;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800467 }
468
Nguyen Anh Quynh7772d852014-01-21 11:49:25 +0800469 c++;
470 } else {
Nguyen Anh Quynh94020d82014-01-25 14:22:15 +0800471 // combine this instruction with previous prefix "instruction"
Nguyen Anh Quynh7772d852014-01-21 11:49:25 +0800472 cs_insn *prev = get_prev_insn(insn_cache, f, total, total_size);
473 handle->combine(handle, &insn_cache[f], prev);
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800474 }
475
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800476 buffer += insn_size;
477 size -= insn_size;
478 offset += insn_size;
479
Nguyen Anh Quynh94020d82014-01-25 14:22:15 +0800480 if (count > 0) {
481 // x86 hacky
482 if (!handle->prev_prefix) {
483 if (c == count)
484 break;
485 } else {
486 // only combine 1 prefix with regular instruction
Nguyen Anh Quynh8ce50e42014-01-27 18:15:28 +0800487 if (c == count + 1) {
488 // the last insn is redundant
489 c--;
490 f--;
491 // free allocated detail pointer of the last redundant instruction
492 if (handle->detail)
493 cs_mem_free(insn_cache[f].detail);
494
Nguyen Anh Quynh94020d82014-01-25 14:22:15 +0800495 break;
Nguyen Anh Quynh8ce50e42014-01-27 18:15:28 +0800496 }
Nguyen Anh Quynh94020d82014-01-25 14:22:15 +0800497 }
498 }
Nguyen Anh Quynh8f13f3c2013-12-04 22:57:04 +0800499 } else {
500 // encounter a broken instruction
Nguyen Anh Quynhd3ffe372014-04-09 23:49:30 +0800501 // if there is no request to skip data, or remaining data is too small,
502 // then bail out
503 if (!handle->skipdata || handle->skipdata_size > size)
504 break;
505
506 if (handle->skipdata_setup.callback) {
507 skipdata_bytes = handle->skipdata_setup.callback(offset,
508 handle->skipdata_setup.user_data);
509 if (skipdata_bytes > size)
510 // remaining data is not enough
511 break;
512
513 if (!skipdata_bytes)
514 // user requested not to skip data, so bail out
515 break;
516 } else
517 skipdata_bytes = handle->skipdata_size;
518
519 // we have to skip some amount of data, depending on arch & mode
520 insn_cache[f].id = 0; // invalid ID for this "data" instruction
521 insn_cache[f].address = offset;
522 insn_cache[f].size = skipdata_bytes;
523 memcpy(insn_cache[f].bytes, buffer, skipdata_bytes);
524 strncpy(insn_cache[f].mnemonic, handle->skipdata_setup.mnemonic,
525 sizeof(insn_cache[f].mnemonic) - 1);
526 skipdata_opstr(insn_cache[f].op_str, buffer, skipdata_bytes);
527 insn_cache[f].detail = NULL;
528
529 f++;
530 if (f == ARR_SIZE(insn_cache)) {
531 // resize total to contain newly disasm insns
532
533 total_size += (sizeof(cs_insn) * INSN_CACHE_SIZE);
534 tmp = cs_mem_realloc(total, total_size);
535 if (tmp == NULL) { // insufficient memory
536 cs_mem_free(total);
537 handle->errnum = CS_ERR_MEM;
538 return 0;
539 }
540
541 total = tmp;
542 memcpy((void*)((uintptr_t)total + total_size - sizeof(insn_cache)), insn_cache, sizeof(insn_cache));
543
544 // reset f back to 0
545 f = 0;
546 }
547
548 buffer += skipdata_bytes;
549 size -= skipdata_bytes;
550 offset += skipdata_bytes;
551 c++;
Nguyen Anh Quynh8f13f3c2013-12-04 22:57:04 +0800552 }
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800553 }
554
555 if (f) {
556 // resize total to contain newly disasm insns
Nguyen Anh Quynha8eb7a52014-01-11 12:55:31 +0800557 void *tmp = cs_mem_realloc(total, total_size + f * sizeof(insn_cache[0]));
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800558 if (tmp == NULL) { // insufficient memory
Nguyen Anh Quynha8eb7a52014-01-11 12:55:31 +0800559 cs_mem_free(total);
Nguyen Anh Quynh3eb9ac92013-11-27 15:24:47 +0800560 handle->errnum = CS_ERR_MEM;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800561 return 0;
562 }
563
564 total = tmp;
Alex Ionescu46018db2014-01-22 09:45:00 -0800565 memcpy((void*)((uintptr_t)total + total_size), insn_cache, f * sizeof(insn_cache[0]));
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800566
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800567 }
568
569 *insn = total;
570
571 return c;
572}
573
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800574void cs_free(cs_insn *insn, size_t count)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800575{
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800576 size_t i;
577
578 // free all detail pointers
579 for (i = 0; i < count; i++)
Nguyen Anh Quynha8eb7a52014-01-11 12:55:31 +0800580 cs_mem_free(insn[i].detail);
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800581
582 // then free pointer to cs_insn array
Nguyen Anh Quynha8eb7a52014-01-11 12:55:31 +0800583 cs_mem_free(insn);
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800584}
585
586// return friendly name of regiser in a string
pancakef0e4eed2013-12-11 22:14:42 +0100587const char *cs_reg_name(csh ud, unsigned int reg)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800588{
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800589 struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800590
591 if (!handle || handle->reg_name == NULL) {
592 return NULL;
593 }
594
Nguyen Anh Quynha253c7a2013-12-09 10:26:18 +0800595 return handle->reg_name(ud, reg);
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800596}
597
pancakef0e4eed2013-12-11 22:14:42 +0100598const char *cs_insn_name(csh ud, unsigned int insn)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800599{
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800600 struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800601
602 if (!handle || handle->insn_name == NULL) {
603 return NULL;
604 }
605
Nguyen Anh Quynha253c7a2013-12-09 10:26:18 +0800606 return handle->insn_name(ud, insn);
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800607}
608
Nguyen Anh Quynh70083562013-12-20 22:02:20 +0800609static bool arr_exist(unsigned char *arr, unsigned char max, unsigned int id)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800610{
611 int i;
612
613 for (i = 0; i < max; i++) {
614 if (arr[i] == id)
615 return true;
616 }
617
618 return false;
619}
620
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800621bool cs_insn_group(csh ud, cs_insn *insn, unsigned int group_id)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800622{
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800623 if (!ud)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800624 return false;
625
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800626 struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud;
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800627 if (!handle->detail) {
628 handle->errnum = CS_ERR_DETAIL;
629 return false;
630 }
631
632 return arr_exist(insn->detail->groups, insn->detail->groups_count, group_id);
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800633}
634
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800635bool cs_reg_read(csh ud, cs_insn *insn, unsigned int reg_id)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800636{
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800637 if (!ud)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800638 return false;
639
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800640 struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud;
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800641 if (!handle->detail) {
642 handle->errnum = CS_ERR_DETAIL;
643 return false;
644 }
645
646 return arr_exist(insn->detail->regs_read, insn->detail->regs_read_count, reg_id);
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800647}
648
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800649bool cs_reg_write(csh ud, cs_insn *insn, unsigned int reg_id)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800650{
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800651 if (!ud)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800652 return false;
653
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800654 struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud;
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800655 if (!handle->detail) {
656 handle->errnum = CS_ERR_DETAIL;
657 return false;
658 }
659
660 return arr_exist(insn->detail->regs_write, insn->detail->regs_write_count, reg_id);
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800661}
662
663int cs_op_count(csh ud, cs_insn *insn, unsigned int op_type)
664{
665 if (!ud)
666 return -1;
667
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800668 struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud;
Nguyen Anh Quynh24e12272014-01-15 21:27:23 +0800669 if (!handle->detail) {
670 handle->errnum = CS_ERR_DETAIL;
671 return -1;
672 }
673
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800674 unsigned int count = 0, i;
675
Nguyen Anh Quynh3eb9ac92013-11-27 15:24:47 +0800676 handle->errnum = CS_ERR_OK;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800677
678 switch (handle->arch) {
679 default:
Nguyen Anh Quynh3eb9ac92013-11-27 15:24:47 +0800680 handle->errnum = CS_ERR_HANDLE;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800681 return -1;
682 case CS_ARCH_ARM:
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800683 for (i = 0; i < insn->detail->arm.op_count; i++)
Alex Ionescu46018db2014-01-22 09:45:00 -0800684 if (insn->detail->arm.operands[i].type == (arm_op_type)op_type)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800685 count++;
686 break;
687 case CS_ARCH_ARM64:
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800688 for (i = 0; i < insn->detail->arm64.op_count; i++)
Alex Ionescu46018db2014-01-22 09:45:00 -0800689 if (insn->detail->arm64.operands[i].type == (arm64_op_type)op_type)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800690 count++;
691 break;
692 case CS_ARCH_X86:
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800693 for (i = 0; i < insn->detail->x86.op_count; i++)
Alex Ionescu46018db2014-01-22 09:45:00 -0800694 if (insn->detail->x86.operands[i].type == (x86_op_type)op_type)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800695 count++;
696 break;
697 case CS_ARCH_MIPS:
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800698 for (i = 0; i < insn->detail->mips.op_count; i++)
Alex Ionescu46018db2014-01-22 09:45:00 -0800699 if (insn->detail->mips.operands[i].type == (mips_op_type)op_type)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800700 count++;
701 break;
Nguyen Anh Quynh42c6b1a2013-12-30 00:15:25 +0800702 case CS_ARCH_PPC:
703 for (i = 0; i < insn->detail->ppc.op_count; i++)
Alex Ionescu46018db2014-01-22 09:45:00 -0800704 if (insn->detail->ppc.operands[i].type == (ppc_op_type)op_type)
Nguyen Anh Quynh42c6b1a2013-12-30 00:15:25 +0800705 count++;
706 break;
Nguyen Anh Quynh05e27132014-03-10 11:58:57 +0800707 case CS_ARCH_SPARC:
708 for (i = 0; i < insn->detail->sparc.op_count; i++)
709 if (insn->detail->sparc.operands[i].type == (sparc_op_type)op_type)
710 count++;
711 break;
Nguyen Anh Quynh48a14ca2014-03-23 08:35:45 +0800712 case CS_ARCH_SYSZ:
713 for (i = 0; i < insn->detail->sysz.op_count; i++)
714 if (insn->detail->sysz.operands[i].type == (sysz_op_type)op_type)
715 count++;
716 break;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800717 }
718
719 return count;
720}
721
722int cs_op_index(csh ud, cs_insn *insn, unsigned int op_type,
723 unsigned int post)
724{
725 if (!ud)
726 return -1;
727
Nguyen Anh Quynha82a0892014-01-23 23:42:40 +0800728 struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud;
Nguyen Anh Quynh24e12272014-01-15 21:27:23 +0800729 if (!handle->detail) {
730 handle->errnum = CS_ERR_DETAIL;
731 return -1;
732 }
733
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800734 unsigned int count = 0, i;
735
Nguyen Anh Quynh3eb9ac92013-11-27 15:24:47 +0800736 handle->errnum = CS_ERR_OK;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800737
738 switch (handle->arch) {
739 default:
Nguyen Anh Quynh3eb9ac92013-11-27 15:24:47 +0800740 handle->errnum = CS_ERR_HANDLE;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800741 return -1;
742 case CS_ARCH_ARM:
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800743 for (i = 0; i < insn->detail->arm.op_count; i++) {
Alex Ionescu46018db2014-01-22 09:45:00 -0800744 if (insn->detail->arm.operands[i].type == (arm_op_type)op_type)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800745 count++;
746 if (count == post)
747 return i;
748 }
749 break;
750 case CS_ARCH_ARM64:
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800751 for (i = 0; i < insn->detail->arm64.op_count; i++) {
Alex Ionescu46018db2014-01-22 09:45:00 -0800752 if (insn->detail->arm64.operands[i].type == (arm64_op_type)op_type)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800753 count++;
754 if (count == post)
755 return i;
756 }
757 break;
758 case CS_ARCH_X86:
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800759 for (i = 0; i < insn->detail->x86.op_count; i++) {
Alex Ionescu46018db2014-01-22 09:45:00 -0800760 if (insn->detail->x86.operands[i].type == (x86_op_type)op_type)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800761 count++;
762 if (count == post)
763 return i;
764 }
765 break;
766 case CS_ARCH_MIPS:
Nguyen Anh Quynh4fe224b2013-12-24 16:49:36 +0800767 for (i = 0; i < insn->detail->mips.op_count; i++) {
Alex Ionescu46018db2014-01-22 09:45:00 -0800768 if (insn->detail->mips.operands[i].type == (mips_op_type)op_type)
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800769 count++;
770 if (count == post)
771 return i;
772 }
773 break;
Nguyen Anh Quynh42c6b1a2013-12-30 00:15:25 +0800774 case CS_ARCH_PPC:
775 for (i = 0; i < insn->detail->ppc.op_count; i++) {
Alex Ionescu46018db2014-01-22 09:45:00 -0800776 if (insn->detail->ppc.operands[i].type == (ppc_op_type)op_type)
Nguyen Anh Quynh42c6b1a2013-12-30 00:15:25 +0800777 count++;
778 if (count == post)
779 return i;
780 }
781 break;
Nguyen Anh Quynh05e27132014-03-10 11:58:57 +0800782 case CS_ARCH_SPARC:
783 for (i = 0; i < insn->detail->sparc.op_count; i++) {
784 if (insn->detail->sparc.operands[i].type == (sparc_op_type)op_type)
785 count++;
786 if (count == post)
787 return i;
788 }
789 break;
Nguyen Anh Quynh48a14ca2014-03-23 08:35:45 +0800790 case CS_ARCH_SYSZ:
791 for (i = 0; i < insn->detail->sysz.op_count; i++) {
792 if (insn->detail->sysz.operands[i].type == (sysz_op_type)op_type)
793 count++;
794 if (count == post)
795 return i;
796 }
797 break;
Nguyen Anh Quynh26ee41a2013-11-27 12:11:31 +0800798 }
799
800 return -1;
801}