import Unicorn2

This commit is contained in:
Nguyen Anh Quynh
2021-10-03 22:14:44 +08:00
parent 772558119a
commit aaaea14214
837 changed files with 368717 additions and 200912 deletions

View File

@@ -21,12 +21,10 @@
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu-common.h"
#include "qemu/host-utils.h"
#include <math.h>
#include <limits.h>
#include <errno.h>
#include <string.h>
#include "qemu/cutils.h"
void pstrcpy(char *buf, int buf_size, const char *str)
{
@@ -54,104 +52,3 @@ char *pstrcat(char *buf, int buf_size, const char *s)
pstrcpy(buf + len, buf_size - len, s);
return buf;
}
int strstart(const char *str, const char *val, const char **ptr)
{
const char *p, *q;
p = str;
q = val;
while (*q != '\0') {
if (*p != *q)
return 0;
p++;
q++;
}
if (ptr)
*ptr = p;
return 1;
}
int qemu_fls(int i)
{
return 32 - clz32(i);
}
static int64_t suffix_mul(char suffix, int64_t unit)
{
switch (qemu_toupper(suffix)) {
case STRTOSZ_DEFSUFFIX_B:
return 1;
case STRTOSZ_DEFSUFFIX_KB:
return unit;
case STRTOSZ_DEFSUFFIX_MB:
return unit * unit;
case STRTOSZ_DEFSUFFIX_GB:
return unit * unit * unit;
case STRTOSZ_DEFSUFFIX_TB:
return unit * unit * unit * unit;
case STRTOSZ_DEFSUFFIX_PB:
return unit * unit * unit * unit * unit;
case STRTOSZ_DEFSUFFIX_EB:
return unit * unit * unit * unit * unit * unit;
}
return -1;
}
/*
* Convert string to bytes, allowing either B/b for bytes, K/k for KB,
* M/m for MB, G/g for GB or T/t for TB. End pointer will be returned
* in *end, if not NULL. Return -ERANGE on overflow, Return -EINVAL on
* other error.
*/
int64_t strtosz_suffix_unit(const char *nptr, char **end,
const char default_suffix, int64_t unit)
{
int64_t retval = -EINVAL;
char *endptr;
unsigned char c;
int mul_required = 0;
double val, mul, integral, fraction;
errno = 0;
val = strtod(nptr, &endptr);
if (isnan(val) || endptr == nptr || errno != 0) {
goto fail;
}
fraction = modf(val, &integral);
if (fraction != 0) {
mul_required = 1;
}
c = *endptr;
mul = (double)suffix_mul(c, unit);
if (mul >= 0) {
endptr++;
} else {
mul = (double)suffix_mul(default_suffix, unit);
assert(mul >= 0);
}
if (mul == 1 && mul_required) {
goto fail;
}
if ((val * mul >= (double)INT64_MAX) || val < 0) {
retval = -ERANGE;
goto fail;
}
retval = (int64_t)(val * mul);
fail:
if (end) {
*end = endptr;
}
return retval;
}
int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix)
{
return strtosz_suffix_unit(nptr, end, default_suffix, 1024);
}
int64_t strtosz(const char *nptr, char **end)
{
return strtosz_suffix(nptr, end, STRTOSZ_DEFSUFFIX_MB);
}