| /* Capstone Disassembly Engine */ |
| /* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2014 */ |
| #if defined (WIN32) || defined (WIN64) || defined (_WIN32) || defined (_WIN64) |
| #pragma warning(disable:4996) |
| #endif |
| #include <stddef.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <capstone.h> |
| |
| #include "utils.h" |
| #include "MCRegisterInfo.h" |
| |
| #ifdef CAPSTONE_USE_SYS_DYN_MEM |
| #define INSN_CACHE_SIZE 32 |
| #else |
| // reduce stack variable size for kernel/firmware |
| #define INSN_CACHE_SIZE 8 |
| #endif |
| |
| // default SKIPDATA mnemonic |
| #define SKIPDATA_MNEM ".byte" |
| |
| cs_err (*arch_init[MAX_ARCH])(cs_struct *) = { NULL }; |
| cs_err (*arch_option[MAX_ARCH]) (cs_struct *, cs_opt_type, size_t value) = { NULL }; |
| void (*arch_destroy[MAX_ARCH]) (cs_struct *) = { NULL }; |
| |
| extern void ARM_enable(void); |
| extern void AArch64_enable(void); |
| extern void Mips_enable(void); |
| extern void X86_enable(void); |
| extern void PPC_enable(void); |
| extern void Sparc_enable(void); |
| extern void SystemZ_enable(void); |
| extern void XCore_enable(void); |
| |
| static void archs_enable(void) |
| { |
| static bool initialized = false; |
| |
| if (initialized) |
| return; |
| |
| #ifdef CAPSTONE_HAS_ARM |
| ARM_enable(); |
| #endif |
| #ifdef CAPSTONE_HAS_ARM64 |
| AArch64_enable(); |
| #endif |
| #ifdef CAPSTONE_HAS_MIPS |
| Mips_enable(); |
| #endif |
| #ifdef CAPSTONE_HAS_POWERPC |
| PPC_enable(); |
| #endif |
| #ifdef CAPSTONE_HAS_SPARC |
| Sparc_enable(); |
| #endif |
| #ifdef CAPSTONE_HAS_SYSZ |
| SystemZ_enable(); |
| #endif |
| #ifdef CAPSTONE_HAS_X86 |
| X86_enable(); |
| #endif |
| #ifdef CAPSTONE_HAS_XCORE |
| XCore_enable(); |
| #endif |
| |
| |
| initialized = true; |
| } |
| |
| unsigned int all_arch = 0; |
| |
| #ifdef CAPSTONE_USE_SYS_DYN_MEM |
| cs_malloc_t cs_mem_malloc = malloc; |
| cs_calloc_t cs_mem_calloc = calloc; |
| cs_realloc_t cs_mem_realloc = realloc; |
| cs_free_t cs_mem_free = free; |
| cs_vsnprintf_t cs_vsnprintf = vsnprintf; |
| #else |
| cs_malloc_t cs_mem_malloc = NULL; |
| cs_calloc_t cs_mem_calloc = NULL; |
| cs_realloc_t cs_mem_realloc = NULL; |
| cs_free_t cs_mem_free = NULL; |
| cs_vsnprintf_t cs_vsnprintf = NULL; |
| #endif |
| |
| CAPSTONE_EXPORT |
| unsigned int cs_version(int *major, int *minor) |
| { |
| archs_enable(); |
| |
| if (major != NULL && minor != NULL) { |
| *major = CS_API_MAJOR; |
| *minor = CS_API_MINOR; |
| } |
| |
| return (CS_API_MAJOR << 8) + CS_API_MINOR; |
| } |
| |
| CAPSTONE_EXPORT |
| bool cs_support(int query) |
| { |
| archs_enable(); |
| |
| if (query == CS_ARCH_ALL) |
| return all_arch == ((1 << CS_ARCH_ARM) | (1 << CS_ARCH_ARM64) | |
| (1 << CS_ARCH_MIPS) | (1 << CS_ARCH_X86) | |
| (1 << CS_ARCH_PPC) | (1 << CS_ARCH_SPARC) | |
| (1 << CS_ARCH_SYSZ) | (1 << CS_ARCH_XCORE)); |
| |
| if ((unsigned int)query < CS_ARCH_MAX) |
| return all_arch & (1 << query); |
| |
| if (query == CS_SUPPORT_DIET) { |
| #ifdef CAPSTONE_DIET |
| return true; |
| #else |
| return false; |
| #endif |
| } |
| |
| if (query == CS_SUPPORT_X86_REDUCE) { |
| #if defined(CAPSTONE_HAS_X86) && defined(CAPSTONE_X86_REDUCE) |
| return true; |
| #else |
| return false; |
| #endif |
| } |
| |
| // unsupported query |
| return false; |
| } |
| |
| CAPSTONE_EXPORT |
| cs_err cs_errno(csh handle) |
| { |
| struct cs_struct *ud; |
| if (!handle) |
| return CS_ERR_CSH; |
| |
| ud = (struct cs_struct *)(uintptr_t)handle; |
| |
| return ud->errnum; |
| } |
| |
| CAPSTONE_EXPORT |
| const char *cs_strerror(cs_err code) |
| { |
| switch(code) { |
| default: |
| return "Unknown error code"; |
| case CS_ERR_OK: |
| return "OK (CS_ERR_OK)"; |
| case CS_ERR_MEM: |
| return "Out of memory (CS_ERR_MEM)"; |
| case CS_ERR_ARCH: |
| return "Invalid architecture (CS_ERR_ARCH)"; |
| case CS_ERR_HANDLE: |
| return "Invalid handle (CS_ERR_HANDLE)"; |
| case CS_ERR_CSH: |
| return "Invalid csh (CS_ERR_CSH)"; |
| case CS_ERR_MODE: |
| return "Invalid mode (CS_ERR_MODE)"; |
| case CS_ERR_OPTION: |
| return "Invalid option (CS_ERR_OPTION)"; |
| case CS_ERR_DETAIL: |
| return "Details are unavailable (CS_ERR_DETAIL)"; |
| case CS_ERR_MEMSETUP: |
| return "Dynamic memory management uninitialized (CS_ERR_MEMSETUP)"; |
| case CS_ERR_VERSION: |
| return "Different API version between core & binding (CS_ERR_VERSION)"; |
| case CS_ERR_DIET: |
| return "Information irrelevant in diet engine (CS_ERR_DIET)"; |
| case CS_ERR_SKIPDATA: |
| return "Information irrelevant for 'data' instruction in SKIPDATA mode (CS_ERR_SKIPDATA)"; |
| } |
| } |
| |
| CAPSTONE_EXPORT |
| cs_err cs_open(cs_arch arch, cs_mode mode, csh *handle) |
| { |
| cs_err err; |
| struct cs_struct *ud; |
| if (!cs_mem_malloc || !cs_mem_calloc || !cs_mem_realloc || !cs_mem_free || !cs_vsnprintf) |
| // Error: before cs_open(), dynamic memory management must be initialized |
| // with cs_option(CS_OPT_MEM) |
| return CS_ERR_MEMSETUP; |
| |
| archs_enable(); |
| |
| if (arch < CS_ARCH_MAX && arch_init[arch]) { |
| ud = cs_mem_calloc(1, sizeof(*ud)); |
| if (!ud) { |
| // memory insufficient |
| return CS_ERR_MEM; |
| } |
| |
| ud->errnum = CS_ERR_OK; |
| ud->arch = arch; |
| ud->mode = mode; |
| ud->big_endian = mode & CS_MODE_BIG_ENDIAN; |
| // by default, do not break instruction into details |
| ud->detail = CS_OPT_OFF; |
| |
| // default skipdata setup |
| ud->skipdata_setup.mnemonic = SKIPDATA_MNEM; |
| |
| err = arch_init[ud->arch](ud); |
| if (err) { |
| cs_mem_free(ud); |
| *handle = 0; |
| return err; |
| } |
| |
| *handle = (uintptr_t)ud; |
| |
| return CS_ERR_OK; |
| } else { |
| *handle = 0; |
| return CS_ERR_ARCH; |
| } |
| } |
| |
| CAPSTONE_EXPORT |
| cs_err cs_close(csh *handle) |
| { |
| struct cs_struct *ud; |
| |
| if (*handle == 0) |
| // invalid handle |
| return CS_ERR_CSH; |
| |
| ud = (struct cs_struct *)(*handle); |
| |
| if (ud->printer_info) |
| cs_mem_free(ud->printer_info); |
| |
| // arch_destroy[ud->arch](ud); |
| |
| cs_mem_free(ud->insn_cache); |
| memset(ud, 0, sizeof(*ud)); |
| cs_mem_free(ud); |
| |
| // invalidate this handle by ZERO out its value. |
| // this is to make sure it is unusable after cs_close() |
| *handle = 0; |
| |
| return CS_ERR_OK; |
| } |
| |
| // fill insn with mnemonic & operands info |
| static void fill_insn(struct cs_struct *handle, cs_insn *insn, char *buffer, MCInst *mci, |
| PostPrinter_t postprinter, const uint8_t *code) |
| { |
| #ifndef CAPSTONE_DIET |
| char *sp, *mnem; |
| #endif |
| |
| // fill the instruction bytes |
| memcpy(insn->bytes, code, MIN(sizeof(insn->bytes), insn->size)); |
| |
| // map internal instruction opcode to public insn ID |
| handle->insn_id(handle, insn, MCInst_getOpcode(mci)); |
| |
| // alias instruction might have ID saved in OpcodePub |
| if (MCInst_getOpcodePub(mci)) |
| insn->id = MCInst_getOpcodePub(mci); |
| |
| // post printer handles some corner cases (hacky) |
| if (postprinter) |
| postprinter((csh)handle, insn, buffer, mci); |
| |
| #ifndef CAPSTONE_DIET |
| // fill in mnemonic & operands |
| // find first space or tab |
| sp = buffer; |
| mnem = insn->mnemonic; |
| if (mci->x86_prefix[0]) { |
| for (sp = buffer; *sp; sp++) { |
| if (*sp == ' '|| *sp == '\t') |
| break; |
| if (*sp == '|') // lock|rep prefix for x86 |
| *sp = ' '; |
| // copy to @mnemonic |
| *mnem = *sp; |
| mnem++; |
| } |
| } else { |
| for (sp = buffer; *sp; sp++) { |
| if (*sp == ' '|| *sp == '\t') |
| break; |
| // copy to @mnemonic |
| *mnem = *sp; |
| mnem++; |
| } |
| } |
| |
| *mnem = '\0'; |
| |
| // copy @op_str |
| if (*sp) { |
| *sp = '\0'; |
| // find the next non-space char |
| sp++; |
| for (; ((*sp == ' ') || (*sp == '\t')); sp++); |
| strncpy(insn->op_str, sp, sizeof(insn->op_str) - 1); |
| insn->op_str[sizeof(insn->op_str) - 1] = '\0'; |
| } else |
| insn->op_str[0] = '\0'; |
| #endif |
| } |
| |
| // how many bytes will we skip when encountering data (CS_OPT_SKIPDATA)? |
| // this very much depends on instruction alignment requirement of each arch. |
| static uint8_t skipdata_size(cs_struct *handle) |
| { |
| switch(handle->arch) { |
| default: |
| // should never reach |
| return -1; |
| case CS_ARCH_ARM: |
| // skip 2 bytes on Thumb mode. |
| if (handle->mode & CS_MODE_THUMB) |
| return 2; |
| // otherwise, skip 4 bytes |
| return 4; |
| case CS_ARCH_ARM64: |
| case CS_ARCH_MIPS: |
| case CS_ARCH_PPC: |
| case CS_ARCH_SPARC: |
| // skip 4 bytes |
| return 4; |
| case CS_ARCH_SYSZ: |
| // SystemZ instruction's length can be 2, 4 or 6 bytes, |
| // so we just skip 2 bytes |
| return 2; |
| case CS_ARCH_X86: |
| // X86 has no restriction on instruction alignment |
| return 1; |
| case CS_ARCH_XCORE: |
| // XCore instruction's length can be 2 or 4 bytes, |
| // so we just skip 2 bytes |
| return 2; |
| } |
| } |
| |
| CAPSTONE_EXPORT |
| cs_err cs_option(csh ud, cs_opt_type type, size_t value) |
| { |
| struct cs_struct *handle; |
| archs_enable(); |
| |
| // cs_option() can be called with NULL handle just for CS_OPT_MEM |
| // This is supposed to be executed before all other APIs (even cs_open()) |
| if (type == CS_OPT_MEM) { |
| cs_opt_mem *mem = (cs_opt_mem *)value; |
| |
| cs_mem_malloc = mem->malloc; |
| cs_mem_calloc = mem->calloc; |
| cs_mem_realloc = mem->realloc; |
| cs_mem_free = mem->free; |
| cs_vsnprintf = mem->vsnprintf; |
| |
| return CS_ERR_OK; |
| } |
| |
| handle = (struct cs_struct *)(uintptr_t)ud; |
| if (!handle) |
| return CS_ERR_CSH; |
| |
| switch(type) { |
| default: |
| break; |
| case CS_OPT_DETAIL: |
| handle->detail = value; |
| return CS_ERR_OK; |
| case CS_OPT_SKIPDATA: |
| handle->skipdata = (value == CS_OPT_ON); |
| if (handle->skipdata) { |
| if (handle->skipdata_size == 0) { |
| // set the default skipdata size |
| handle->skipdata_size = skipdata_size(handle); |
| } |
| } |
| return CS_ERR_OK; |
| case CS_OPT_SKIPDATA_SETUP: |
| if (value) |
| handle->skipdata_setup = *((cs_opt_skipdata *)value); |
| return CS_ERR_OK; |
| } |
| |
| return arch_option[handle->arch](handle, type, value); |
| } |
| |
| // generate @op_str for data instruction of SKIPDATA |
| static void skipdata_opstr(char *opstr, const uint8_t *buffer, size_t size) |
| { |
| char *p = opstr; |
| int len; |
| size_t i; |
| |
| if (!size) { |
| opstr[0] = '\0'; |
| return; |
| } |
| |
| len = sprintf(p, "0x%02x", buffer[0]); |
| p+= len; |
| |
| for(i = 1; i < size; i++) { |
| len = sprintf(p, ", 0x%02x", buffer[i]); |
| p+= len; |
| } |
| } |
| |
| // dynamicly allocate memory to contain disasm insn |
| // NOTE: caller must free() the allocated memory itself to avoid memory leaking |
| CAPSTONE_EXPORT |
| size_t cs_disasm_ex(csh ud, const uint8_t *buffer, size_t size, uint64_t offset, size_t count, cs_insn **insn) |
| { |
| struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud; |
| MCInst mci; |
| uint16_t insn_size; |
| size_t c = 0; |
| unsigned int f = 0; |
| cs_insn *insn_cache; |
| void *total = NULL; |
| size_t total_size = 0; |
| bool r; |
| void *tmp; |
| size_t skipdata_bytes; |
| uint64_t offset_org; |
| |
| if (!handle) { |
| // FIXME: how to handle this case: |
| // handle->errnum = CS_ERR_HANDLE; |
| return 0; |
| } |
| |
| handle->errnum = CS_ERR_OK; |
| |
| // save the original offset for SKIPDATA |
| offset_org = offset; |
| total_size = (sizeof(cs_insn) * INSN_CACHE_SIZE); |
| total = cs_mem_malloc(total_size); |
| insn_cache = total; |
| |
| while (size > 0) { |
| MCInst_Init(&mci); |
| mci.csh = handle; |
| |
| // relative branches need to know the address & size of current insn |
| mci.address = offset; |
| |
| if (handle->detail) { |
| // allocate memory for @detail pointer |
| insn_cache->detail = cs_mem_malloc(sizeof(cs_detail)); |
| } else { |
| insn_cache->detail = NULL; |
| } |
| |
| // save all the information for non-detailed mode |
| mci.flat_insn = insn_cache; |
| mci.flat_insn->address = offset; |
| |
| r = handle->disasm(ud, buffer, size, &mci, &insn_size, offset, handle->getinsn_info); |
| if (r) { |
| SStream ss; |
| SStream_Init(&ss); |
| |
| mci.flat_insn->size = insn_size; |
| handle->printer(&mci, &ss, handle->printer_info); |
| |
| fill_insn(handle, insn_cache, ss.buffer, &mci, handle->post_printer, buffer); |
| |
| f++; |
| if (f == INSN_CACHE_SIZE) { |
| // resize total to contain newly disasm insns |
| total_size += (sizeof(cs_insn) * INSN_CACHE_SIZE); |
| tmp = cs_mem_realloc(total, total_size); |
| if (tmp == NULL) { // insufficient memory |
| cs_mem_free(total); |
| handle->errnum = CS_ERR_MEM; |
| return 0; |
| } |
| |
| total = tmp; |
| insn_cache = (cs_insn *)((char *)total + total_size - (sizeof(cs_insn) * INSN_CACHE_SIZE)); |
| |
| // reset f back to 0 |
| f = 0; |
| } else |
| insn_cache++; |
| |
| c++; |
| if (count > 0 && c == count) |
| break; |
| |
| buffer += insn_size; |
| size -= insn_size; |
| offset += insn_size; |
| } else { |
| // encounter a broken instruction |
| // if there is no request to skip data, or remaining data is too small, |
| // then bail out |
| if (!handle->skipdata || handle->skipdata_size > size) |
| break; |
| |
| if (handle->skipdata_setup.callback) { |
| skipdata_bytes = handle->skipdata_setup.callback(buffer, offset - offset_org, |
| handle->skipdata_setup.user_data); |
| if (skipdata_bytes > size) |
| // remaining data is not enough |
| break; |
| |
| if (!skipdata_bytes) |
| // user requested not to skip data, so bail out |
| break; |
| } else |
| skipdata_bytes = handle->skipdata_size; |
| |
| // we have to skip some amount of data, depending on arch & mode |
| insn_cache->id = 0; // invalid ID for this "data" instruction |
| insn_cache->address = offset; |
| insn_cache->size = skipdata_bytes; |
| memcpy(insn_cache->bytes, buffer, skipdata_bytes); |
| strncpy(insn_cache->mnemonic, handle->skipdata_setup.mnemonic, |
| sizeof(insn_cache->mnemonic) - 1); |
| skipdata_opstr(insn_cache->op_str, buffer, skipdata_bytes); |
| insn_cache->detail = NULL; |
| |
| f++; |
| if (f == INSN_CACHE_SIZE) { |
| // resize total to contain newly disasm insns |
| |
| total_size += (sizeof(cs_insn) * INSN_CACHE_SIZE); |
| tmp = cs_mem_realloc(total, total_size); |
| if (tmp == NULL) { // insufficient memory |
| cs_mem_free(total); |
| handle->errnum = CS_ERR_MEM; |
| return 0; |
| } |
| |
| total = tmp; |
| |
| // reset f back to 0 |
| f = 0; |
| } |
| |
| buffer += skipdata_bytes; |
| size -= skipdata_bytes; |
| offset += skipdata_bytes; |
| c++; |
| } |
| } |
| |
| if (f) { |
| // resize total to contain newly disasm insns |
| void *tmp = cs_mem_realloc(total, total_size - (INSN_CACHE_SIZE - f) * sizeof(*insn_cache)); |
| if (tmp == NULL) { // insufficient memory |
| cs_mem_free(total); |
| handle->errnum = CS_ERR_MEM; |
| return 0; |
| } |
| |
| total = tmp; |
| } |
| |
| *insn = total; |
| |
| return c; |
| } |
| |
| CAPSTONE_EXPORT |
| void cs_free(cs_insn *insn, size_t count) |
| { |
| size_t i; |
| |
| // free all detail pointers |
| for (i = 0; i < count; i++) |
| cs_mem_free(insn[i].detail); |
| |
| // then free pointer to cs_insn array |
| cs_mem_free(insn); |
| } |
| |
| // return friendly name of regiser in a string |
| CAPSTONE_EXPORT |
| const char *cs_reg_name(csh ud, unsigned int reg) |
| { |
| struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud; |
| |
| if (!handle || handle->reg_name == NULL) { |
| return NULL; |
| } |
| |
| return handle->reg_name(ud, reg); |
| } |
| |
| CAPSTONE_EXPORT |
| const char *cs_insn_name(csh ud, unsigned int insn) |
| { |
| struct cs_struct *handle = (struct cs_struct *)(uintptr_t)ud; |
| |
| if (!handle || handle->insn_name == NULL) { |
| return NULL; |
| } |
| |
| return handle->insn_name(ud, insn); |
| } |
| |
| static bool arr_exist(unsigned char *arr, unsigned char max, unsigned int id) |
| { |
| int i; |
| |
| for (i = 0; i < max; i++) { |
| if (arr[i] == id) |
| return true; |
| } |
| |
| return false; |
| } |
| |
| CAPSTONE_EXPORT |
| bool cs_insn_group(csh ud, cs_insn *insn, unsigned int group_id) |
| { |
| struct cs_struct *handle; |
| if (!ud) |
| return false; |
| |
| handle = (struct cs_struct *)(uintptr_t)ud; |
| |
| if (!handle->detail) { |
| handle->errnum = CS_ERR_DETAIL; |
| return false; |
| } |
| |
| if(!insn->id) { |
| handle->errnum = CS_ERR_SKIPDATA; |
| return false; |
| } |
| |
| if(!insn->detail) { |
| handle->errnum = CS_ERR_DETAIL; |
| return false; |
| } |
| |
| return arr_exist(insn->detail->groups, insn->detail->groups_count, group_id); |
| } |
| |
| CAPSTONE_EXPORT |
| bool cs_reg_read(csh ud, cs_insn *insn, unsigned int reg_id) |
| { |
| struct cs_struct *handle; |
| if (!ud) |
| return false; |
| |
| handle = (struct cs_struct *)(uintptr_t)ud; |
| |
| if (!handle->detail) { |
| handle->errnum = CS_ERR_DETAIL; |
| return false; |
| } |
| |
| if(!insn->id) { |
| handle->errnum = CS_ERR_SKIPDATA; |
| return false; |
| } |
| |
| if(!insn->detail) { |
| handle->errnum = CS_ERR_DETAIL; |
| return false; |
| } |
| |
| return arr_exist(insn->detail->regs_read, insn->detail->regs_read_count, reg_id); |
| } |
| |
| CAPSTONE_EXPORT |
| bool cs_reg_write(csh ud, cs_insn *insn, unsigned int reg_id) |
| { |
| struct cs_struct *handle; |
| if (!ud) |
| return false; |
| |
| handle = (struct cs_struct *)(uintptr_t)ud; |
| |
| if (!handle->detail) { |
| handle->errnum = CS_ERR_DETAIL; |
| return false; |
| } |
| |
| if(!insn->id) { |
| handle->errnum = CS_ERR_SKIPDATA; |
| return false; |
| } |
| |
| if(!insn->detail) { |
| handle->errnum = CS_ERR_DETAIL; |
| return false; |
| } |
| |
| return arr_exist(insn->detail->regs_write, insn->detail->regs_write_count, reg_id); |
| } |
| |
| CAPSTONE_EXPORT |
| int cs_op_count(csh ud, cs_insn *insn, unsigned int op_type) |
| { |
| struct cs_struct *handle; |
| unsigned int count = 0, i; |
| if (!ud) |
| return -1; |
| |
| handle = (struct cs_struct *)(uintptr_t)ud; |
| |
| if (!handle->detail) { |
| handle->errnum = CS_ERR_DETAIL; |
| return -1; |
| } |
| |
| if(!insn->id) { |
| handle->errnum = CS_ERR_SKIPDATA; |
| return -1; |
| } |
| |
| if(!insn->detail) { |
| handle->errnum = CS_ERR_DETAIL; |
| return -1; |
| } |
| |
| handle->errnum = CS_ERR_OK; |
| |
| switch (handle->arch) { |
| default: |
| handle->errnum = CS_ERR_HANDLE; |
| return -1; |
| case CS_ARCH_ARM: |
| for (i = 0; i < insn->detail->arm.op_count; i++) |
| if (insn->detail->arm.operands[i].type == (arm_op_type)op_type) |
| count++; |
| break; |
| case CS_ARCH_ARM64: |
| for (i = 0; i < insn->detail->arm64.op_count; i++) |
| if (insn->detail->arm64.operands[i].type == (arm64_op_type)op_type) |
| count++; |
| break; |
| case CS_ARCH_X86: |
| for (i = 0; i < insn->detail->x86.op_count; i++) |
| if (insn->detail->x86.operands[i].type == (x86_op_type)op_type) |
| count++; |
| break; |
| case CS_ARCH_MIPS: |
| for (i = 0; i < insn->detail->mips.op_count; i++) |
| if (insn->detail->mips.operands[i].type == (mips_op_type)op_type) |
| count++; |
| break; |
| case CS_ARCH_PPC: |
| for (i = 0; i < insn->detail->ppc.op_count; i++) |
| if (insn->detail->ppc.operands[i].type == (ppc_op_type)op_type) |
| count++; |
| break; |
| case CS_ARCH_SPARC: |
| for (i = 0; i < insn->detail->sparc.op_count; i++) |
| if (insn->detail->sparc.operands[i].type == (sparc_op_type)op_type) |
| count++; |
| break; |
| case CS_ARCH_SYSZ: |
| for (i = 0; i < insn->detail->sysz.op_count; i++) |
| if (insn->detail->sysz.operands[i].type == (sysz_op_type)op_type) |
| count++; |
| break; |
| case CS_ARCH_XCORE: |
| for (i = 0; i < insn->detail->xcore.op_count; i++) |
| if (insn->detail->xcore.operands[i].type == (xcore_op_type)op_type) |
| count++; |
| break; |
| } |
| |
| return count; |
| } |
| |
| CAPSTONE_EXPORT |
| int cs_op_index(csh ud, cs_insn *insn, unsigned int op_type, |
| unsigned int post) |
| { |
| struct cs_struct *handle; |
| unsigned int count = 0, i; |
| if (!ud) |
| return -1; |
| |
| handle = (struct cs_struct *)(uintptr_t)ud; |
| |
| if (!handle->detail) { |
| handle->errnum = CS_ERR_DETAIL; |
| return -1; |
| } |
| |
| if(!insn->id) { |
| handle->errnum = CS_ERR_SKIPDATA; |
| return -1; |
| } |
| |
| if(!insn->detail) { |
| handle->errnum = CS_ERR_DETAIL; |
| return -1; |
| } |
| |
| handle->errnum = CS_ERR_OK; |
| |
| switch (handle->arch) { |
| default: |
| handle->errnum = CS_ERR_HANDLE; |
| return -1; |
| case CS_ARCH_ARM: |
| for (i = 0; i < insn->detail->arm.op_count; i++) { |
| if (insn->detail->arm.operands[i].type == (arm_op_type)op_type) |
| count++; |
| if (count == post) |
| return i; |
| } |
| break; |
| case CS_ARCH_ARM64: |
| for (i = 0; i < insn->detail->arm64.op_count; i++) { |
| if (insn->detail->arm64.operands[i].type == (arm64_op_type)op_type) |
| count++; |
| if (count == post) |
| return i; |
| } |
| break; |
| case CS_ARCH_X86: |
| for (i = 0; i < insn->detail->x86.op_count; i++) { |
| if (insn->detail->x86.operands[i].type == (x86_op_type)op_type) |
| count++; |
| if (count == post) |
| return i; |
| } |
| break; |
| case CS_ARCH_MIPS: |
| for (i = 0; i < insn->detail->mips.op_count; i++) { |
| if (insn->detail->mips.operands[i].type == (mips_op_type)op_type) |
| count++; |
| if (count == post) |
| return i; |
| } |
| break; |
| case CS_ARCH_PPC: |
| for (i = 0; i < insn->detail->ppc.op_count; i++) { |
| if (insn->detail->ppc.operands[i].type == (ppc_op_type)op_type) |
| count++; |
| if (count == post) |
| return i; |
| } |
| break; |
| case CS_ARCH_SPARC: |
| for (i = 0; i < insn->detail->sparc.op_count; i++) { |
| if (insn->detail->sparc.operands[i].type == (sparc_op_type)op_type) |
| count++; |
| if (count == post) |
| return i; |
| } |
| break; |
| case CS_ARCH_SYSZ: |
| for (i = 0; i < insn->detail->sysz.op_count; i++) { |
| if (insn->detail->sysz.operands[i].type == (sysz_op_type)op_type) |
| count++; |
| if (count == post) |
| return i; |
| } |
| break; |
| case CS_ARCH_XCORE: |
| for (i = 0; i < insn->detail->xcore.op_count; i++) { |
| if (insn->detail->xcore.operands[i].type == (xcore_op_type)op_type) |
| count++; |
| if (count == post) |
| return i; |
| } |
| break; |
| } |
| |
| return -1; |
| } |