capstone/utils.c
Rot127 104f693c11 Architecture updater (auto-sync) - Updating ARM (#1949)
* Add auto-sync updater.

* Update Capstone core with auto-sync changes.

* Update ARM via auto-sync.

* Make changes to arch modules which are introduced by auto-sync.

* Update tests for ARM.

* Fix build warnings for make

* Remove meson.build

* Print shift amount in decimal

* Patch non LLVM register alias.

* Change type of immediate operand to unsiged (due to: #771)

* Replace all occurances of a register with its alias.

* Fix printing of signed imms

* Print rotate amount in decimal

* CHange imm type to int64_t to match LLVM imm type.

* Fix search for register names, by completing string first.

* Print ModImm operands always in decimal

* Use number format of previous capstone version.

* Correct implicit writes and update_flags according to SBit.

* Add missing test for RegImmShift

* Reverse incorrect comparision.

* Set shift information for move instructions.

* Set mem access for all memory operands

* Set subtracted flag if offset is negative.

* Add flag for post-index memory operands.

* Add detail op for BX_RET and MOVPCLR

* Use instruction post_index operand.

* Add VPOP and VPUSH as unique CS IDs.

* Add shifting info for MOVsr.

* Add TODOs.

* Add in LLVM hardcoded operands to detail.

* Move detail editing from InstPrinter to Mapping

* Formatting

* Add removed check.

* Add writeback register and constraints to RFEI instructions.

* Translate shift immediate

* Print negative immediates

* Remove duplicate invalid entry

* Add CS groups to instructions

* Fix write attriutes of stores.

* Add missing names of added instructions

* Fix LLVM bug

* Add more post_index flags

* http -> https

* Make generated functions static

* Remove tab prefix for alias instructions.

* Set ValidateMCOperand to NULL.

* Fix AddrMode3Operand operands

* Allow getting system and banked register name via API

* Add writeback to STC/LDC instructions.

* Fix (hopefully) last case where disp is negative and subtracted = true

* Remove accidentially introduced regressions
2023-07-19 17:56:27 +08:00

110 lines
2.1 KiB
C

/* Capstone Disassembly Engine */
/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2019 */
#if defined(CAPSTONE_HAS_OSXKERNEL)
#include <Availability.h>
#include <libkern/libkern.h>
#else
#include <stdlib.h>
#endif
#include <string.h>
#include "utils.h"
// count number of positive members in a list.
// NOTE: list must be guaranteed to end in 0
unsigned int count_positive(const uint16_t *list)
{
unsigned int c;
for (c = 0; list[c] > 0; c++);
return c;
}
// count number of positive members in a list.
// NOTE: list must be guaranteed to end in 0
unsigned int count_positive8(const unsigned char *list)
{
unsigned int c;
for (c = 0; list[c] > 0; c++);
return c;
}
char *cs_strdup(const char *str)
{
size_t len = strlen(str) + 1;
void *new = cs_mem_malloc(len);
if (new == NULL)
return NULL;
return (char *)memmove(new, str, len);
}
// we need this since Windows doesn't have snprintf()
int cs_snprintf(char *buffer, size_t size, const char *fmt, ...)
{
int ret;
va_list ap;
va_start(ap, fmt);
ret = cs_vsnprintf(buffer, size, fmt, ap);
va_end(ap);
return ret;
}
bool arr_exist8(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;
}
bool arr_exist(uint16_t *arr, unsigned char max, unsigned int id)
{
int i;
for (i = 0; i < max; i++) {
if (arr[i] == id)
return true;
}
return false;
}
/// Reads 4 bytes in the endian order specified in MI->cs->mode.
uint32_t readBytes32(MCInst *MI, const uint8_t *Bytes)
{
assert(MI && Bytes);
uint32_t Insn;
if (MODE_IS_BIG_ENDIAN(MI->csh->mode))
Insn = (Bytes[3] << 0) | (Bytes[2] << 8) | (Bytes[1] << 16) |
((uint32_t)Bytes[0] << 24);
else
Insn = ((uint32_t)Bytes[3] << 24) | (Bytes[2] << 16) |
(Bytes[1] << 8) | (Bytes[0] << 0);
return Insn;
}
/// Reads 2 bytes in the endian order specified in MI->cs->mode.
uint16_t readBytes16(MCInst *MI, const uint8_t *Bytes)
{
assert(MI && Bytes);
uint16_t Insn;
if (MODE_IS_BIG_ENDIAN(MI->csh->mode))
Insn = (Bytes[0] << 8) | Bytes[1];
else
Insn = (Bytes[1] << 8) | Bytes[0];
return Insn;
}