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| // SPDX-License-Identifier: GPL-2.0
| #include <stdio.h>
| #include "pmu.h"
| #include "topdown.h"
|
| int topdown_filter_events(const char **attr, char **str, bool use_group)
| {
| int off = 0;
| int i;
| int len = 0;
| char *s;
|
| for (i = 0; attr[i]; i++) {
| if (pmu_have_event("cpu", attr[i])) {
| len += strlen(attr[i]) + 1;
| attr[i - off] = attr[i];
| } else
| off++;
| }
| attr[i - off] = NULL;
|
| *str = malloc(len + 1 + 2);
| if (!*str)
| return -1;
| s = *str;
| if (i - off == 0) {
| *s = 0;
| return 0;
| }
| if (use_group)
| *s++ = '{';
| for (i = 0; attr[i]; i++) {
| strcpy(s, attr[i]);
| s += strlen(s);
| *s++ = ',';
| }
| if (use_group) {
| s[-1] = '}';
| *s = 0;
| } else
| s[-1] = 0;
| return 0;
| }
|
| __weak bool arch_topdown_check_group(bool *warn)
| {
| *warn = false;
| return false;
| }
|
| __weak void arch_topdown_group_warn(void)
| {
| }
|
| __weak bool arch_topdown_sample_read(struct evsel *leader __maybe_unused)
| {
| return false;
| }
|
|
