Revision 22ead3e0bfdb87516656453336160e0a37b066bf authored by Richard Henderson on 22 October 2017, 00:45:40 UTC, committed by Nguyen Anh Quynh on 22 October 2017, 00:45:40 UTC
* Constify string literals Use -Wwrite-strings to force string literals to be of type "const char[]", then fix up all warning fallout. * Constify common infrastructure Step one in allowing backend data to be readonly. Minimal changes to backends for now; just set all pointers in common structs that aren't modified to const. * Constify AArch64 backend Section size changes within libcapstone.so are -.rodata 602587 -.data.rel.ro 228416 -.data 1003746 +.rodata 769051 +.data.rel.ro 241120 +.data 824578 * Constify ARM backend Section size changes within libcapstone.so are -.rodata 769051 -.data.rel.ro 241120 -.data 824578 +.rodata 959835 +.data.rel.ro 245120 +.data 629506 * Constify Mips backend Section size changes within libcapstone.so are -.rodata 959835 -.data.rel.ro 245120 -.data 629506 +.rodata 1069851 +.data.rel.ro 256416 +.data 508194 * Constify PowerPC backend Section size changes within libcapstone.so are -.rodata 1069851 -.data.rel.ro 256416 -.data 508194 +.rodata 1142715 +.data.rel.ro 272224 +.data 419490 * Constify Sparc backend Section size changes within libcapstone.so are -.rodata 1142715 -.data.rel.ro 272224 -.data 419490 +.rodata 1175227 +.data.rel.ro 277536 +.data 381666 * Constify SystemZ backend Section size changes within libcapstone.so are -.rodata 1175227 -.data.rel.ro 277536 -.data 381666 +.rodata 1221883 +.data.rel.ro 278016 +.data 334498 * Constify X86 backend Section size changes within libcapstone.so are -.rodata 1221883 -.data.rel.ro 278016 -.data 334498 +.rodata 1533531 +.data.rel.ro 281184 +.data 19714 * Constify XCore backend Section size changes within libcapstone.so are -.rodata 1533531 -.data.rel.ro 281184 -.data 19714 +.rodata 1553026 +.data.rel.ro 281280 +.data 40
1 parent 8998a3a
utils.c
/* Capstone Disassembly Engine */
/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2014 */
#if defined(CAPSTONE_HAS_OSXKERNEL)
#include <libkern/libkern.h>
#else
#include <stdlib.h>
#endif
#include <string.h>
#include "utils.h"
// create a cache for fast id lookup
static unsigned short *make_id2insn(const insn_map *insns, unsigned int size)
{
// NOTE: assume that the max id is always put at the end of insns array
unsigned short max_id = insns[size - 1].id;
unsigned short i;
unsigned short *cache = (unsigned short *)cs_mem_malloc(sizeof(*cache) * (max_id + 1));
for (i = 1; i < size; i++)
cache[insns[i].id] = i;
return cache;
}
// look for @id in @insns, given its size in @max. first time call will update @cache.
// return 0 if not found
unsigned short insn_find(const insn_map *insns, unsigned int max, unsigned int id, unsigned short **cache)
{
if (id > insns[max - 1].id)
return 0;
if (*cache == NULL)
*cache = make_id2insn(insns, max);
return (*cache)[id];
}
int name2id(const name_map* map, int max, const char *name)
{
int i;
for (i = 0; i < max; i++) {
if (!strcmp(map[i].name, name)) {
return map[i].id;
}
}
// nothing match
return -1;
}
// count number of positive members in a list.
// NOTE: list must be guaranteed to end in 0
unsigned int count_positive(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 doesnt 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;
}
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