import Unicorn2
This commit is contained in:
@@ -21,12 +21,10 @@
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu-common.h"
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#include "qemu/host-utils.h"
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#include <math.h>
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#include <limits.h>
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#include <errno.h>
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#include <string.h>
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#include "qemu/cutils.h"
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void pstrcpy(char *buf, int buf_size, const char *str)
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{
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@@ -54,104 +52,3 @@ char *pstrcat(char *buf, int buf_size, const char *s)
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pstrcpy(buf + len, buf_size - len, s);
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return buf;
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}
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int strstart(const char *str, const char *val, const char **ptr)
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{
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const char *p, *q;
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p = str;
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q = val;
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while (*q != '\0') {
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if (*p != *q)
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return 0;
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p++;
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q++;
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}
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if (ptr)
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*ptr = p;
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return 1;
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}
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int qemu_fls(int i)
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{
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return 32 - clz32(i);
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}
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static int64_t suffix_mul(char suffix, int64_t unit)
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{
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switch (qemu_toupper(suffix)) {
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case STRTOSZ_DEFSUFFIX_B:
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return 1;
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case STRTOSZ_DEFSUFFIX_KB:
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return unit;
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case STRTOSZ_DEFSUFFIX_MB:
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return unit * unit;
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case STRTOSZ_DEFSUFFIX_GB:
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return unit * unit * unit;
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case STRTOSZ_DEFSUFFIX_TB:
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return unit * unit * unit * unit;
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case STRTOSZ_DEFSUFFIX_PB:
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return unit * unit * unit * unit * unit;
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case STRTOSZ_DEFSUFFIX_EB:
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return unit * unit * unit * unit * unit * unit;
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}
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return -1;
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}
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/*
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* Convert string to bytes, allowing either B/b for bytes, K/k for KB,
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* M/m for MB, G/g for GB or T/t for TB. End pointer will be returned
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* in *end, if not NULL. Return -ERANGE on overflow, Return -EINVAL on
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* other error.
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*/
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int64_t strtosz_suffix_unit(const char *nptr, char **end,
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const char default_suffix, int64_t unit)
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{
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int64_t retval = -EINVAL;
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char *endptr;
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unsigned char c;
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int mul_required = 0;
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double val, mul, integral, fraction;
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errno = 0;
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val = strtod(nptr, &endptr);
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if (isnan(val) || endptr == nptr || errno != 0) {
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goto fail;
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}
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fraction = modf(val, &integral);
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if (fraction != 0) {
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mul_required = 1;
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}
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c = *endptr;
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mul = (double)suffix_mul(c, unit);
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if (mul >= 0) {
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endptr++;
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} else {
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mul = (double)suffix_mul(default_suffix, unit);
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assert(mul >= 0);
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}
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if (mul == 1 && mul_required) {
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goto fail;
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}
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if ((val * mul >= (double)INT64_MAX) || val < 0) {
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retval = -ERANGE;
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goto fail;
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}
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retval = (int64_t)(val * mul);
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fail:
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if (end) {
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*end = endptr;
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}
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return retval;
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}
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int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix)
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{
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return strtosz_suffix_unit(nptr, end, default_suffix, 1024);
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}
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int64_t strtosz(const char *nptr, char **end)
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{
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return strtosz_suffix(nptr, end, STRTOSZ_DEFSUFFIX_MB);
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}
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