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perf hists browser: Split popup menu actions - part 2

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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 <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1429687101-4360-9-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Namhyung Kim 2015-04-22 16:18:19 +09:00 committed by Arnaldo Carvalho de Melo
parent bc7cad429b
commit ea7cd59233
1 changed files with 215 additions and 141 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

356
tools/perf/ui/browsers/hists.c
View File

@ -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;
do {
struct popup_action *act;
if (choice == -1) {
free_popup_options(options, nr_options - 1);
continue;
}
if (choice == annotate || choice == annotate_t || choice == annotate_f) {
struct hist_entry *he;
he = hist_browser__selected_entry(browser);
if (he == NULL)
continue;
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;
}
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)
choice = ui__popup_menu(nr_options, options);
if (choice == -1 || choice >= nr_options)
break;
}
act = &actions[choice];
key = act->fn(browser, act);
} while (key == 1);
if (key == K_SWITCH_INPUT_DATA)
break;
}
out_free_stack:
pstack__delete(browser->pstack);