From: Namhyung Kim <namhy...@kernel.org> For tracepoint events, callchains always contain certain functions. Sometimes it'd be better to skip those functions as they have no value.
Signed-off-by: Namhyung Kim <namhy...@kernel.org> Tested-by: Arnaldo Carvalho de Melo <a...@redhat.com> Cc: Andi Kleen <a...@firstfloor.org> Cc: David Ahern <dsah...@gmail.com> Cc: Jiri Olsa <jo...@kernel.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Cc: Stephane Eranian <eran...@google.com> Link: http://lkml.kernel.org/r/20161124011114.7102-2-namhy...@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/builtin-sched.c | 3 ++- tools/perf/util/evsel.h | 1 + tools/perf/util/evsel_fprintf.c | 7 ++++++- 3 files changed, 9 insertions(+), 2 deletions(-) diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c index 829468defa07..43fcc13e402d 100644 --- a/tools/perf/builtin-sched.c +++ b/tools/perf/builtin-sched.c @@ -1876,7 +1876,8 @@ static void timehist_print_sample(struct perf_sched *sched, sample__fprintf_sym(sample, al, 0, EVSEL__PRINT_SYM | EVSEL__PRINT_ONELINE | - EVSEL__PRINT_CALLCHAIN_ARROW, + EVSEL__PRINT_CALLCHAIN_ARROW | + EVSEL__PRINT_SKIP_IGNORED, &callchain_cursor, stdout); out: diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h index 27fa3a343577..6abb89cd27f9 100644 --- a/tools/perf/util/evsel.h +++ b/tools/perf/util/evsel.h @@ -392,6 +392,7 @@ int perf_evsel__fprintf(struct perf_evsel *evsel, #define EVSEL__PRINT_SRCLINE (1<<5) #define EVSEL__PRINT_UNKNOWN_AS_ADDR (1<<6) #define EVSEL__PRINT_CALLCHAIN_ARROW (1<<7) +#define EVSEL__PRINT_SKIP_IGNORED (1<<8) struct callchain_cursor; diff --git a/tools/perf/util/evsel_fprintf.c b/tools/perf/util/evsel_fprintf.c index 53bb614feafb..5a6f52284452 100644 --- a/tools/perf/util/evsel_fprintf.c +++ b/tools/perf/util/evsel_fprintf.c @@ -109,6 +109,7 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment, int print_srcline = print_opts & EVSEL__PRINT_SRCLINE; int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR; int print_arrow = print_opts & EVSEL__PRINT_CALLCHAIN_ARROW; + int print_skip_ignored = print_opts & EVSEL__PRINT_SKIP_IGNORED; char s = print_oneline ? ' ' : '\t'; bool first = true; @@ -124,6 +125,9 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment, if (!node) break; + if (node->sym && node->sym->ignore && print_skip_ignored) + goto next; + printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " "); if (print_arrow && !first) @@ -162,8 +166,9 @@ int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment, if (!print_oneline) printed += fprintf(fp, "\n"); - callchain_cursor_advance(cursor); first = false; +next: + callchain_cursor_advance(cursor); } } -- 2.7.4
