perf tools: Add support for event post configuration
Add support to overload any global settings for event and force user
specified term value. It will be useful for new time and backtrace
terms.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1438162936-59698-2-git-send-email-kan.liang@intel.com
Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 71f6905..048d61d 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -207,6 +207,7 @@
evsel->unit = "";
evsel->scale = 1.0;
INIT_LIST_HEAD(&evsel->node);
+ INIT_LIST_HEAD(&evsel->config_terms);
perf_evsel__object.init(evsel);
evsel->sample_size = __perf_evsel__sample_size(attr->sample_type);
perf_evsel__calc_id_pos(evsel);
@@ -586,6 +587,19 @@
}
}
+static void apply_config_terms(struct perf_event_attr *attr __maybe_unused,
+ struct list_head *config_terms)
+{
+ struct perf_evsel_config_term *term;
+
+ list_for_each_entry(term, config_terms, list) {
+ switch (term->type) {
+ default:
+ break;
+ }
+ }
+}
+
/*
* The enable_on_exec/disabled value strategy:
*
@@ -777,6 +791,12 @@
attr->use_clockid = 1;
attr->clockid = opts->clockid;
}
+
+ /*
+ * Apply event specific term settings,
+ * it overloads any global configuration.
+ */
+ apply_config_terms(attr, &evsel->config_terms);
}
static int perf_evsel__alloc_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
@@ -900,6 +920,16 @@
zfree(&evsel->id);
}
+static void perf_evsel__free_config_terms(struct perf_evsel *evsel)
+{
+ struct perf_evsel_config_term *term, *h;
+
+ list_for_each_entry_safe(term, h, &evsel->config_terms, list) {
+ list_del(&term->list);
+ free(term);
+ }
+}
+
void perf_evsel__close_fd(struct perf_evsel *evsel, int ncpus, int nthreads)
{
int cpu, thread;
@@ -919,6 +949,7 @@
assert(list_empty(&evsel->node));
perf_evsel__free_fd(evsel);
perf_evsel__free_id(evsel);
+ perf_evsel__free_config_terms(evsel);
close_cgroup(evsel->cgrp);
cpu_map__put(evsel->cpus);
thread_map__put(evsel->threads);