From ea7cd59233097984850adc0e4119644f089be734 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Wed, 22 Apr 2015 16:18:19 +0900 Subject: [PATCH] perf hists browser: Split popup menu actions - part 2 Currently perf_evsel__hists_browse() function spins on a huge loop and handles many key actions. Since it's hard to read and modify, let's split it out into small helper functions. The add_XXX_opt() functions are to register popup menu item on the selected entry. When it adds an item, it also saves related data into struct popup_action and returns 1 so that it can increase the number of items (nr_options). With this change, we can simplify the code just to call selected callback function without considering various conditions. A callback function named do_XXX is called with saved data when the item is selected by user. No functional change intended. Signed-off-by: Namhyung Kim Acked-by: Jiri Olsa Cc: David Ahern Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1429687101-4360-9-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browsers/hists.c | 354 ++++++++++++++++++++------------- 1 file changed, 214 insertions(+), 140 deletions(-) diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index 7d88a1cdf04b..9bd7b38de64c 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -1402,8 +1402,16 @@ close_file_and_continue: return ret; } +struct popup_action { + struct thread *thread; + struct dso *dso; + struct map_symbol ms; + + int (*fn)(struct hist_browser *browser, struct popup_action *act); +}; + static int -do_annotate(struct hist_browser *browser, struct map_symbol *ms) +do_annotate(struct hist_browser *browser, struct popup_action *act) { struct perf_evsel *evsel; struct annotation *notes; @@ -1413,12 +1421,12 @@ do_annotate(struct hist_browser *browser, struct map_symbol *ms) if (!objdump_path && perf_session_env__lookup_objdump(browser->env)) return 0; - notes = symbol__annotation(ms->sym); + notes = symbol__annotation(act->ms.sym); if (!notes->src) return 0; evsel = hists_to_evsel(browser->hists); - err = map_symbol__tui_annotate(ms, evsel, browser->hbt); + err = map_symbol__tui_annotate(&act->ms, evsel, browser->hbt); he = hist_browser__selected_entry(browser); /* * offer option to annotate the other branch source or target @@ -1434,8 +1442,27 @@ do_annotate(struct hist_browser *browser, struct map_symbol *ms) } static int -do_zoom_thread(struct hist_browser *browser, struct thread *thread) +add_annotate_opt(struct hist_browser *browser __maybe_unused, + struct popup_action *act, char **optstr, + struct map *map, struct symbol *sym) { + if (sym == NULL || map->dso->annotate_warned) + return 0; + + if (asprintf(optstr, "Annotate %s", sym->name) < 0) + return 0; + + act->ms.map = map; + act->ms.sym = sym; + act->fn = do_annotate; + return 1; +} + +static int +do_zoom_thread(struct hist_browser *browser, struct popup_action *act) +{ + struct thread *thread = act->thread; + if (browser->hists->thread_filter) { pstack__remove(browser->pstack, &browser->hists->thread_filter); perf_hpp__set_elide(HISTC_THREAD, false); @@ -1456,8 +1483,28 @@ do_zoom_thread(struct hist_browser *browser, struct thread *thread) } static int -do_zoom_dso(struct hist_browser *browser, struct dso *dso) +add_thread_opt(struct hist_browser *browser, struct popup_action *act, + char **optstr, struct thread *thread) +{ + if (thread == NULL) + return 0; + + if (asprintf(optstr, "Zoom %s %s(%d) thread", + browser->hists->thread_filter ? "out of" : "into", + thread->comm_set ? thread__comm_str(thread) : "", + thread->tid) < 0) + return 0; + + act->thread = thread; + act->fn = do_zoom_thread; + return 1; +} + +static int +do_zoom_dso(struct hist_browser *browser, struct popup_action *act) { + struct dso *dso = act->dso; + if (browser->hists->dso_filter) { pstack__remove(browser->pstack, &browser->hists->dso_filter); perf_hpp__set_elide(HISTC_DSO, false); @@ -1479,25 +1526,58 @@ do_zoom_dso(struct hist_browser *browser, struct dso *dso) } static int -do_browse_map(struct hist_browser *browser __maybe_unused, struct map *map) +add_dso_opt(struct hist_browser *browser, struct popup_action *act, + char **optstr, struct dso *dso) { - map__browse(map); + if (dso == NULL) + return 0; + + if (asprintf(optstr, "Zoom %s %s DSO", + browser->hists->dso_filter ? "out of" : "into", + dso->kernel ? "the Kernel" : dso->short_name) < 0) + return 0; + + act->dso = dso; + act->fn = do_zoom_dso; + return 1; +} + +static int +do_browse_map(struct hist_browser *browser __maybe_unused, + struct popup_action *act) +{ + map__browse(act->ms.map); return 0; } +static int +add_map_opt(struct hist_browser *browser __maybe_unused, + struct popup_action *act, char **optstr, struct map *map) +{ + if (map == NULL) + return 0; + + if (asprintf(optstr, "Browse map details") < 0) + return 0; + + act->ms.map = map; + act->fn = do_browse_map; + return 1; +} + static int do_run_script(struct hist_browser *browser __maybe_unused, - struct thread *thread, struct symbol *sym) + struct popup_action *act) { char script_opt[64]; memset(script_opt, 0, sizeof(script_opt)); - if (thread) { + if (act->thread) { scnprintf(script_opt, sizeof(script_opt), " -c %s ", - thread__comm_str(thread)); - } else if (sym) { + thread__comm_str(act->thread)); + } else if (act->ms.sym) { scnprintf(script_opt, sizeof(script_opt), " -S %s ", - sym->name); + act->ms.sym->name); } script_browse(script_opt); @@ -1505,17 +1585,74 @@ do_run_script(struct hist_browser *browser __maybe_unused, } static int -do_switch_data(struct hist_browser *browser __maybe_unused, int key) +add_script_opt(struct hist_browser *browser __maybe_unused, + struct popup_action *act, char **optstr, + struct thread *thread, struct symbol *sym) +{ + if (thread) { + if (asprintf(optstr, "Run scripts for samples of thread [%s]", + thread__comm_str(thread)) < 0) + return 0; + } else if (sym) { + if (asprintf(optstr, "Run scripts for samples of symbol [%s]", + sym->name) < 0) + return 0; + } else { + if (asprintf(optstr, "Run scripts for all samples") < 0) + return 0; + } + + act->thread = thread; + act->ms.sym = sym; + act->fn = do_run_script; + return 1; +} + +static int +do_switch_data(struct hist_browser *browser __maybe_unused, + struct popup_action *act __maybe_unused) { if (switch_data_file()) { ui__warning("Won't switch the data files due to\n" "no valid data file get selected!\n"); - return key; + return 0; } return K_SWITCH_INPUT_DATA; } +static int +add_switch_opt(struct hist_browser *browser, + struct popup_action *act, char **optstr) +{ + if (!is_report_browser(browser->hbt)) + return 0; + + if (asprintf(optstr, "Switch to another data file in PWD") < 0) + return 0; + + act->fn = do_switch_data; + return 1; +} + +static int +do_exit_browser(struct hist_browser *browser __maybe_unused, + struct popup_action *act __maybe_unused) +{ + return 0; +} + +static int +add_exit_opt(struct hist_browser *browser __maybe_unused, + struct popup_action *act, char **optstr) +{ + if (asprintf(optstr, "Exit") < 0) + return 0; + + act->fn = do_exit_browser; + return 1; +} + static void hist_browser__update_nr_entries(struct hist_browser *hb) { u64 nr_entries = 0; @@ -1546,6 +1683,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, struct branch_info *bi; #define MAX_OPTIONS 16 char *options[MAX_OPTIONS]; + struct popup_action actions[MAX_OPTIONS]; int nr_options = 0; int key = -1; char buf[64]; @@ -1600,6 +1738,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, ui_helpline__push(helpline); memset(options, 0, sizeof(options)); + memset(actions, 0, sizeof(actions)); perf_hpp__for_each_format(fmt) perf_hpp__reset_width(fmt, hists); @@ -1610,12 +1749,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, while (1) { struct thread *thread = NULL; struct dso *dso = NULL; - struct map_symbol ms; - int choice = 0, - annotate = -2, zoom_dso = -2, zoom_thread = -2, - annotate_f = -2, annotate_t = -2, browse_map = -2; - int scripts_comm = -2, scripts_symbol = -2, - scripts_all = -2, switch_data = -2; + int choice = 0; nr_options = 0; @@ -1648,22 +1782,23 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, browser->selection->map->dso->annotate_warned) continue; - ms.map = browser->selection->map; - ms.sym = browser->selection->sym; - - do_annotate(browser, &ms); + actions->ms.map = browser->selection->map; + actions->ms.sym = browser->selection->sym; + do_annotate(browser, actions); continue; case 'P': hist_browser__dump(browser); continue; case 'd': - do_zoom_dso(browser, dso); + actions->dso = dso; + do_zoom_dso(browser, actions); continue; case 'V': browser->show_dso = !browser->show_dso; continue; case 't': - do_zoom_thread(browser, thread); + actions->thread = thread; + do_zoom_thread(browser, actions); continue; case '/': if (ui_browser__input_window("Symbol to show", @@ -1676,12 +1811,15 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, } continue; case 'r': - if (is_report_browser(hbt)) - do_run_script(browser, NULL, NULL); + if (is_report_browser(hbt)) { + actions->thread = NULL; + actions->ms.sym = NULL; + do_run_script(browser, actions); + } continue; case 's': if (is_report_browser(hbt)) { - key = do_switch_data(browser, key); + key = do_switch_data(browser, actions); if (key == K_SWITCH_INPUT_DATA) goto out_free_stack; } @@ -1762,129 +1900,65 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, if (bi == NULL) goto skip_annotation; - if (bi->from.sym != NULL && - !bi->from.map->dso->annotate_warned && - asprintf(&options[nr_options], "Annotate %s", bi->from.sym->name) > 0) { - annotate_f = nr_options++; - } - - if (bi->to.sym != NULL && - !bi->to.map->dso->annotate_warned && - (bi->to.sym != bi->from.sym || - bi->to.map->dso != bi->from.map->dso) && - asprintf(&options[nr_options], "Annotate %s", bi->to.sym->name) > 0) { - annotate_t = nr_options++; - } + nr_options += add_annotate_opt(browser, + &actions[nr_options], + &options[nr_options], + bi->from.map, + bi->from.sym); + if (bi->to.sym != bi->from.sym) + nr_options += add_annotate_opt(browser, + &actions[nr_options], + &options[nr_options], + bi->to.map, + bi->to.sym); } else { - if (browser->selection->sym != NULL && - !browser->selection->map->dso->annotate_warned) { - struct annotation *notes; - - notes = symbol__annotation(browser->selection->sym); - - if (notes->src && - asprintf(&options[nr_options], "Annotate %s", - browser->selection->sym->name) > 0) { - annotate = nr_options++; - } - } + nr_options += add_annotate_opt(browser, + &actions[nr_options], + &options[nr_options], + browser->selection->map, + browser->selection->sym); } skip_annotation: - if (thread != NULL && - asprintf(&options[nr_options], "Zoom %s %s(%d) thread", - (browser->hists->thread_filter ? "out of" : "into"), - (thread->comm_set ? thread__comm_str(thread) : ""), - thread->tid) > 0) - zoom_thread = nr_options++; - - if (dso != NULL && - asprintf(&options[nr_options], "Zoom %s %s DSO", - (browser->hists->dso_filter ? "out of" : "into"), - (dso->kernel ? "the Kernel" : dso->short_name)) > 0) - zoom_dso = nr_options++; - - if (browser->selection != NULL && - browser->selection->map != NULL && - asprintf(&options[nr_options], "Browse map details") > 0) - browse_map = nr_options++; + nr_options += add_thread_opt(browser, &actions[nr_options], + &options[nr_options], thread); + nr_options += add_dso_opt(browser, &actions[nr_options], + &options[nr_options], dso); + nr_options += add_map_opt(browser, &actions[nr_options], + &options[nr_options], + browser->selection->map); /* perf script support */ if (browser->he_selection) { - struct symbol *sym; - - if (asprintf(&options[nr_options], "Run scripts for samples of thread [%s]", - thread__comm_str(browser->he_selection->thread)) > 0) - scripts_comm = nr_options++; - - sym = browser->he_selection->ms.sym; - if (sym && sym->namelen && - asprintf(&options[nr_options], "Run scripts for samples of symbol [%s]", - sym->name) > 0) - scripts_symbol = nr_options++; + nr_options += add_script_opt(browser, + &actions[nr_options], + &options[nr_options], + thread, NULL); + nr_options += add_script_opt(browser, + &actions[nr_options], + &options[nr_options], + NULL, browser->selection->sym); } - - if (asprintf(&options[nr_options], "Run scripts for all samples") > 0) - scripts_all = nr_options++; - - if (is_report_browser(hbt) && asprintf(&options[nr_options], - "Switch to another data file in PWD") > 0) - switch_data = nr_options++; + nr_options += add_script_opt(browser, &actions[nr_options], + &options[nr_options], NULL, NULL); + nr_options += add_switch_opt(browser, &actions[nr_options], + &options[nr_options]); add_exit_option: - if (asprintf(&options[nr_options], "Exit") > 0) - nr_options++; -retry_popup_menu: - choice = ui__popup_menu(nr_options, options); + nr_options += add_exit_opt(browser, &actions[nr_options], + &options[nr_options]); - if (choice == nr_options - 1) - break; - - if (choice == -1) { - free_popup_options(options, nr_options - 1); - continue; - } - - if (choice == annotate || choice == annotate_t || choice == annotate_f) { - struct hist_entry *he; + do { + struct popup_action *act; - he = hist_browser__selected_entry(browser); - if (he == NULL) - continue; + choice = ui__popup_menu(nr_options, options); + if (choice == -1 || choice >= nr_options) + break; - if (choice == annotate_f) { - ms.map = he->branch_info->from.map; - ms.sym = he->branch_info->from.sym; - } else if (choice == annotate_t) { - ms.map = he->branch_info->to.map; - ms.sym = he->branch_info->to.sym; - } else { - ms = *browser->selection; - } + act = &actions[choice]; + key = act->fn(browser, act); + } while (key == 1); - if (do_annotate(browser, &ms) == 1) - goto retry_popup_menu; - } else if (choice == browse_map) { - do_browse_map(browser, browser->selection->map); - } else if (choice == zoom_dso) { - do_zoom_dso(browser, dso); - } else if (choice == zoom_thread) { - do_zoom_thread(browser, thread); - } - /* perf scripts support */ - else if (choice == scripts_all || choice == scripts_comm || - choice == scripts_symbol) { - if (choice == scripts_comm) - do_run_script(browser, browser->he_selection->thread, NULL); - if (choice == scripts_symbol) - do_run_script(browser, NULL, browser->he_selection->ms.sym); - if (choice == scripts_all) - do_run_script(browser, NULL, NULL); - } - /* Switch to another data file */ - else if (choice == switch_data) { - key = do_switch_data(browser, key); - if (key == K_SWITCH_INPUT_DATA) - break; - } + if (key == K_SWITCH_INPUT_DATA) + break; } out_free_stack: pstack__delete(browser->pstack); -- 2.20.1