perf evlist: Introduce append_tp_filter_pid() and append_tp_filter_pids() (1827ab5b) · Commits · 戴 / test

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 <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-daynpknni44ywuzi8iua57nn@git.kernel.org Signed-off-by:

Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/util/evlist.c

+14 −0

Original line number	Diff line number	Diff line
		@@ -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;

tools/perf/util/evlist.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -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);

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