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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-03-04 21:19:21 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2011-03-06 13:10:05 -0300 |
| commit | 60098917c06d154d06ce030c125266eab9e60768 (patch) | |
| tree | cc4f203256504ffd11696418f1ccbabd590ba8f9 /tools/perf/util/ui/browsers/hists.c | |
| parent | d7603d5122d9700fb8f36fa08b04f4e900fef059 (diff) | |
| download | linux-60098917c06d154d06ce030c125266eab9e60768.tar.gz linux-60098917c06d154d06ce030c125266eab9e60768.tar.bz2 linux-60098917c06d154d06ce030c125266eab9e60768.zip | |
perf hists browser: Handle browsing empty hists tree
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/ui/browsers/hists.c')
| -rw-r--r-- | tools/perf/util/ui/browsers/hists.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/tools/perf/util/ui/browsers/hists.c b/tools/perf/util/ui/browsers/hists.c index c27ab35042f1..c98e6f81d285 100644 --- a/tools/perf/util/ui/browsers/hists.c +++ b/tools/perf/util/ui/browsers/hists.c @@ -639,6 +639,9 @@ static void ui_browser__hists_seek(struct ui_browser *self, struct rb_node *nd; bool first = true; + if (self->nr_entries == 0) + return; + switch (whence) { case SEEK_SET: nd = hists__filter_entries(rb_first(self->entries)); @@ -820,8 +823,8 @@ int hists__browse(struct hists *self, const char *helpline, hists__browser_title(self, msg, sizeof(msg), ev_name, dso_filter, thread_filter); while (1) { - const struct thread *thread; - const struct dso *dso; + const struct thread *thread = NULL; + const struct dso *dso = NULL; char *options[16]; int nr_options = 0, choice = 0, i, annotate = -2, zoom_dso = -2, zoom_thread = -2, @@ -829,8 +832,10 @@ int hists__browse(struct hists *self, const char *helpline, key = hist_browser__run(browser, msg); - thread = hist_browser__selected_thread(browser); - dso = browser->selection->map ? browser->selection->map->dso : NULL; + if (browser->he_selection != NULL) { + thread = hist_browser__selected_thread(browser); + dso = browser->selection->map ? browser->selection->map->dso : NULL; + } switch (key) { case NEWT_KEY_TAB: @@ -841,7 +846,8 @@ int hists__browse(struct hists *self, const char *helpline, */ goto out_free_stack; case 'a': - if (browser->selection->map == NULL && + if (browser->selection == NULL || + browser->selection->map == NULL || browser->selection->map->dso->annotate_warned) continue; goto do_annotate; @@ -887,7 +893,8 @@ int hists__browse(struct hists *self, const char *helpline, goto out_free_stack; } - if (browser->selection->sym != NULL && + if (browser->selection != NULL && + browser->selection->sym != NULL && !browser->selection->map->dso->annotate_warned && asprintf(&options[nr_options], "Annotate %s", browser->selection->sym->name) > 0) @@ -906,7 +913,8 @@ int hists__browse(struct hists *self, const char *helpline, (dso->kernel ? "the Kernel" : dso->short_name)) > 0) zoom_dso = nr_options++; - if (browser->selection->map != NULL && + if (browser->selection != NULL && + browser->selection->map != NULL && asprintf(&options[nr_options], "Browse map details") > 0) browse_map = nr_options++; |