// 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; }