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