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// SPDX-License-Identifier: GPL-2.0
#include "perf.h"
#include "util/debug.h"
#include <subcmd/parse-options.h>
#include "util/parse-branch-options.h"
#include <stdlib.h>
#define BRANCH_OPT(n, m) \
{ .name = n, .mode = (m) }
#define BRANCH_END { .name = NULL }
struct branch_mode {
const char *name;
int mode;
};
static const struct branch_mode branch_modes[] = {
BRANCH_OPT("u", PERF_SAMPLE_BRANCH_USER),
BRANCH_OPT("k", PERF_SAMPLE_BRANCH_KERNEL),
BRANCH_OPT("hv", PERF_SAMPLE_BRANCH_HV),
BRANCH_OPT("any", PERF_SAMPLE_BRANCH_ANY),
BRANCH_OPT("any_call", PERF_SAMPLE_BRANCH_ANY_CALL),
BRANCH_OPT("any_ret", PERF_SAMPLE_BRANCH_ANY_RETURN),
BRANCH_OPT("ind_call", PERF_SAMPLE_BRANCH_IND_CALL),
BRANCH_OPT("abort_tx", PERF_SAMPLE_BRANCH_ABORT_TX),
BRANCH_OPT("in_tx", PERF_SAMPLE_BRANCH_IN_TX),
BRANCH_OPT("no_tx", PERF_SAMPLE_BRANCH_NO_TX),
BRANCH_OPT("cond", PERF_SAMPLE_BRANCH_COND),
BRANCH_OPT("ind_jmp", PERF_SAMPLE_BRANCH_IND_JUMP),
BRANCH_OPT("call", PERF_SAMPLE_BRANCH_CALL),
BRANCH_OPT("save_type", PERF_SAMPLE_BRANCH_TYPE_SAVE),
BRANCH_END
};
int parse_branch_str(const char *str, __u64 *mode)
{
#define ONLY_PLM \
(PERF_SAMPLE_BRANCH_USER |\
PERF_SAMPLE_BRANCH_KERNEL |\
PERF_SAMPLE_BRANCH_HV)
int ret = 0;
char *p, *s;
char *os = NULL;
const struct branch_mode *br;
if (str == NULL) {
*mode = PERF_SAMPLE_BRANCH_ANY;
return 0;
}
/* because str is read-only */
s = os = strdup(str);
if (!s)
return -1;
for (;;) {
p = strchr(s, ',');
if (p)
*p = '\0';
for (br = branch_modes; br->name; br++) {
if (!strcasecmp(s, br->name))
break;
}
if (!br->name) {
ret = -1;
pr_warning("unknown branch filter %s,"
" check man page\n", s);
goto error;
}
*mode |= br->mode;
if (!p)
break;
s = p + 1;
}
/* default to any branch */
if ((*mode & ~ONLY_PLM) == 0) {
*mode = PERF_SAMPLE_BRANCH_ANY;
}
error:
free(os);
return ret;
}
int
parse_branch_stack(const struct option *opt, const char *str, int unset)
{
__u64 *mode = (__u64 *)opt->value;
if (unset)
return 0;
/*
* cannot set it twice, -b + --branch-filter for instance
*/
if (*mode)
return -1;
return parse_branch_str(str, mode);
}
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