From 1827ab5ba8e1d0354cc36b3692444306ced01471 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 7 Oct 2019 17:00:34 -0300 Subject: [PATCH] perf evlist: Introduce append_tp_filter_pid() and append_tp_filter_pids() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit We'll need this to support 'perf trace e tracepoint --filter=expr', as the command line tracepoint filter is attache to the preceding evsel, just like in 'perf record' and when we go to set pid filters, which we do at the minimum to filter 'perf trace' own syscalls, we need to append, not set the tp filter. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Luis Cláudio Gonçalves Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-daynpknni44ywuzi8iua57nn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/evlist.c | 14 ++++++++++++++ tools/perf/util/evlist.h | 3 +++ 2 files changed, 17 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 1650d242a1c8..e33b46aca5cb 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -1128,6 +1128,20 @@ int perf_evlist__set_tp_filter_pid(struct evlist *evlist, pid_t pid) return perf_evlist__set_tp_filter_pids(evlist, 1, &pid); } +int perf_evlist__append_tp_filter_pids(struct evlist *evlist, size_t npids, pid_t *pids) +{ + char *filter = asprintf__tp_filter_pids(npids, pids); + int ret = perf_evlist__append_tp_filter(evlist, filter); + + free(filter); + return ret; +} + +int perf_evlist__append_tp_filter_pid(struct evlist *evlist, pid_t pid) +{ + return perf_evlist__append_tp_filter_pids(evlist, 1, &pid); +} + bool perf_evlist__valid_sample_type(struct evlist *evlist) { struct evsel *pos; diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index c58fd1908bfc..13051409fd22 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -142,6 +142,9 @@ int perf_evlist__set_tp_filter_pids(struct evlist *evlist, size_t npids, pid_t * int perf_evlist__append_tp_filter(struct evlist *evlist, const char *filter); +int perf_evlist__append_tp_filter_pid(struct evlist *evlist, pid_t pid); +int perf_evlist__append_tp_filter_pids(struct evlist *evlist, size_t npids, pid_t *pids); + struct evsel * perf_evlist__find_tracepoint_by_id(struct evlist *evlist, int id); -- 2.30.2