Contributors: 10
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Stéphane Eranian |
245 |
58.19% |
1 |
7.14% |
| Kan Liang |
77 |
18.29% |
2 |
14.29% |
| Roberto Agostino Vitillo |
54 |
12.83% |
1 |
7.14% |
| Ian Rogers |
15 |
3.56% |
1 |
7.14% |
| Arnaldo Carvalho de Melo |
14 |
3.33% |
3 |
21.43% |
| Namhyung Kim |
8 |
1.90% |
2 |
14.29% |
| Zheng Zengkai |
3 |
0.71% |
1 |
7.14% |
| Frédéric Weisbecker |
3 |
0.71% |
1 |
7.14% |
| Greg Kroah-Hartman |
1 |
0.24% |
1 |
7.14% |
| Josh Poimboeuf |
1 |
0.24% |
1 |
7.14% |
| Total |
421 |
|
14 |
|
// SPDX-License-Identifier: GPL-2.0
#include <stdbool.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include "util/debug.h"
#include <subcmd/parse-options.h>
#include "util/perf_regs.h"
#include "util/parse-regs-options.h"
static int
__parse_regs(const struct option *opt, const char *str, int unset, bool intr)
{
uint64_t *mode = (uint64_t *)opt->value;
const struct sample_reg *r = NULL;
char *s, *os = NULL, *p;
int ret = -1;
uint64_t mask;
if (unset)
return 0;
/*
* cannot set it twice
*/
if (*mode)
return -1;
if (intr)
mask = arch__intr_reg_mask();
else
mask = arch__user_reg_mask();
/* str may be NULL in case no arg is passed to -I */
if (str) {
/* because str is read-only */
s = os = strdup(str);
if (!s)
return -1;
for (;;) {
p = strchr(s, ',');
if (p)
*p = '\0';
if (!strcmp(s, "?")) {
fprintf(stderr, "available registers: ");
#ifdef HAVE_PERF_REGS_SUPPORT
for (r = sample_reg_masks; r->name; r++) {
if (r->mask & mask)
fprintf(stderr, "%s ", r->name);
}
#endif
fputc('\n', stderr);
/* just printing available regs */
goto error;
}
#ifdef HAVE_PERF_REGS_SUPPORT
for (r = sample_reg_masks; r->name; r++) {
if ((r->mask & mask) && !strcasecmp(s, r->name))
break;
}
#endif
if (!r || !r->name) {
ui__warning("Unknown register \"%s\", check man page or run \"perf record %s?\"\n",
s, intr ? "-I" : "--user-regs=");
goto error;
}
*mode |= r->mask;
if (!p)
break;
s = p + 1;
}
}
ret = 0;
/* default to all possible regs */
if (*mode == 0)
*mode = mask;
error:
free(os);
return ret;
}
int
parse_user_regs(const struct option *opt, const char *str, int unset)
{
return __parse_regs(opt, str, unset, false);
}
int
parse_intr_regs(const struct option *opt, const char *str, int unset)
{
return __parse_regs(opt, str, unset, true);
}