Commit-ID: 60098917c06d154d06ce030c125266eab9e60768 Gitweb: http://git.kernel.org/tip/60098917c06d154d06ce030c125266eab9e60768 Author: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> AuthorDate: Fri, 4 Mar 2011 21:19:21 -0300 Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> CommitDate: Sun, 6 Mar 2011 13:10:05 -0300 perf hists browser: Handle browsing empty hists tree Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx> Cc: Ingo Molnar <mingo@xxxxxxx> Cc: Mike Galbraith <efault@xxxxxx> Cc: Paul Mackerras <paulus@xxxxxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Stephane Eranian <eranian@xxxxxxxxxx> Cc: Tom Zanussi <tzanussi@xxxxxxxxx> LKML-Reference: <new-submission> Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx> --- 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 c27ab35..c98e6f8 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++; -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html