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| author | Adrian Hunter <adrian.hunter@intel.com> | 2015-09-25 16:15:49 +0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2015-09-28 17:08:48 -0300 |
| commit | 03cd1fed2b8730271d3a8dbabd87989abddc33c4 (patch) | |
| tree | 598fa85343b188b3a72de6e6a8d09b9411d31d54 | |
| parent | 96b40f3c05f36e061fd4dde920b9e9c795a88b69 (diff) | |
| download | linux-03cd1fed2b8730271d3a8dbabd87989abddc33c4.tar.gz linux-03cd1fed2b8730271d3a8dbabd87989abddc33c4.tar.bz2 linux-03cd1fed2b8730271d3a8dbabd87989abddc33c4.zip | |
perf script: Add a setting for maximum stack depth
Add a setting for maximum stack depth in preparation for allowing for
synthesized callchains.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1443186956-18718-19-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
| -rw-r--r-- | tools/perf/builtin-script.c | 6 | ||||
| -rw-r--r-- | tools/perf/util/session.c | 2 |
2 files changed, 5 insertions, 3 deletions
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 092843968791..a65b498df097 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -33,6 +33,8 @@ static bool nanosecs; static const char *cpu_list; static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS); +static unsigned int scripting_max_stack = PERF_MAX_STACK_DEPTH; + enum perf_output_field { PERF_OUTPUT_COMM = 1U << 0, PERF_OUTPUT_TID = 1U << 1, @@ -475,7 +477,7 @@ static void print_sample_bts(union perf_event *event, } } perf_evsel__print_ip(evsel, sample, al, print_opts, - PERF_MAX_STACK_DEPTH); + scripting_max_stack); } /* print branch_to information */ @@ -552,7 +554,7 @@ static void process_event(union perf_event *event, struct perf_sample *sample, perf_evsel__print_ip(evsel, sample, al, output[attr->type].print_ip_opts, - PERF_MAX_STACK_DEPTH); + scripting_max_stack); } if (PRINT_FIELD(IREGS)) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 15c84cad213a..84a02eae4394 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1800,7 +1800,7 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, struct perf_sample *sample, if (thread__resolve_callchain(al->thread, evsel, sample, NULL, NULL, - PERF_MAX_STACK_DEPTH) != 0) { + stack_depth) != 0) { if (verbose) error("Failed to resolve callchain. Skipping\n"); return; |