From 24bff2dc0f77b1f186b7bdf30060caf3df191a68 Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Mon, 12 Mar 2012 16:13:30 +0100 Subject: [PATCH] perf report: Fix annotate double quit issue in branch view mode This patch fixes perf report to not go back two levels when pressing the 'q' key while annotating in branch view mode. When pressing 'q' in annotate mode and if the branch source and target belong to different functions, perf now brings up the annotation popup menu again to offer the option to annotate the other branch source or target. As part of the code restructuring in perf_evsel__hists_browse() we also fix a memory leak on options[] in case of error. Signed-off-by: Stephane Eranian Cc: peterz@infradead.org Cc: acme@redhat.com Cc: asharma@fb.com Cc: ravitillo@lbl.gov Cc: vweaver1@eecs.utk.edu Cc: khandual@linux.vnet.ibm.com Cc: dsahern@gmail.com Link: http://lkml.kernel.org/r/1331565210-10865-3-git-send-email-eranian@google.com Signed-off-by: Ingo Molnar --- tools/perf/util/ui/browsers/hists.c | 38 +++++++++++++++++++++++------ 1 file changed, 31 insertions(+), 7 deletions(-) diff --git a/tools/perf/util/ui/browsers/hists.c b/tools/perf/util/ui/browsers/hists.c index 40fd42470447..de8ece8bcce3 100644 --- a/tools/perf/util/ui/browsers/hists.c +++ b/tools/perf/util/ui/browsers/hists.c @@ -856,6 +856,16 @@ static int hists__browser_title(struct hists *self, char *bf, size_t size, return printed; } +static inline void free_popup_options(char **options, int n) +{ + int i; + + for (i = 0; i < n; ++i) { + free(options[i]); + options[i] = NULL; + } +} + static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, const char *helpline, const char *ev_name, bool left_exits, @@ -866,6 +876,8 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, struct hist_browser *browser = hist_browser__new(self); struct branch_info *bi; struct pstack *fstack; + char *options[16]; + int nr_options = 0; int key = -1; if (browser == NULL) @@ -877,14 +889,17 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, ui_helpline__push(helpline); + memset(options, 0, sizeof(options)); + while (1) { const struct thread *thread = NULL; const struct dso *dso = NULL; - char *options[16]; - int nr_options = 0, choice = 0, i, + int choice = 0, annotate = -2, zoom_dso = -2, zoom_thread = -2, annotate_f = -2, annotate_t = -2, browse_map = -2; + nr_options = 0; + key = hist_browser__run(browser, ev_name, timer, arg, delay_secs); if (browser->he_selection != NULL) { @@ -1023,17 +1038,16 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, browse_map = nr_options++; add_exit_option: options[nr_options++] = (char *)"Exit"; - +retry_popup_menu: choice = ui__popup_menu(nr_options, options); - for (i = 0; i < nr_options - 1; ++i) - free(options[i]); - if (choice == nr_options - 1) break; - if (choice == -1) + if (choice == -1) { + free_popup_options(options, nr_options - 1); continue; + } if (choice == annotate || choice == annotate_t || choice == annotate_f) { struct hist_entry *he; @@ -1064,9 +1078,18 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, err = hist_entry__tui_annotate(he, evsel->idx, timer, arg, delay_secs); he->used = false; + /* + * offer option to annotate the other branch source or target + * (if they exists) when returning from annotate + */ + if ((err == 'q' || err == CTRL('c')) + && annotate_t != -2 && annotate_f != -2) + goto retry_popup_menu; + ui_browser__update_nr_entries(&browser->b, browser->hists->nr_entries); if (err) ui_browser__handle_resize(&browser->b); + } else if (choice == browse_map) map__browse(browser->selection->map); else if (choice == zoom_dso) { @@ -1112,6 +1135,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, pstack__delete(fstack); out: hist_browser__delete(browser); + free_popup_options(options, nr_options - 1); return key; }