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perf annotate browser: Use -> to navigate on assembly lines

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And add better explanations when the line isn't actionable, like non
assembly lines and on other instructions.

Suggested-by: Ingo Molnar <mingo@elte.hu>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-375n844b5wra7lgq08ou153j@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2011-10-06 09:45:29 -03:00
parent e39622ceb1
commit 234a5375f6
1 changed files with 21 additions and 6 deletions
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27
tools/perf/util/ui/browsers/annotate.c
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@ -184,8 +184,8 @@ static int annotate_browser__run(struct annotate_browser *self, int evidx,
int key;
if (ui_browser__show(&self->b, sym->name,
"<-, -> or ESC: exit, TAB/shift+TAB: "
"cycle hottest lines, H: Hottest") < 0)
"<- or ESC: exit, TAB/shift+TAB: "
"cycle hottest lines, H: Hottest, -> Line action") < 0)
return -1;
ui_browser__add_exit_keys(&self->b, exit_keys);
@ -245,24 +245,39 @@ static int annotate_browser__run(struct annotate_browser *self, int evidx,
nd = self->curr_hot;
break;
case NEWT_KEY_ENTER:
if (self->selection != NULL) {
case NEWT_KEY_RIGHT:
if (self->selection == NULL) {
ui_helpline__puts("Huh? No selection. Report to linux-kernel@vger.kernel.org");
continue;
}
if (self->selection->offset == -1) {
ui_helpline__puts("Actions are only available for assembly lines.");
continue;
} else {
char *s = strstr(self->selection->line, "callq ");
struct annotation *notes;
struct symbol *target;
u64 ip;
if (s == NULL)
if (s == NULL) {
ui_helpline__puts("Actions are only available for the 'callq' instruction.");
continue;
}
s = strchr(s, ' ');
if (s++ == NULL)
if (s++ == NULL) {
ui_helpline__puts("Invallid callq instruction.");
continue;
}
ip = strtoull(s, NULL, 16);
ip = ms->map->map_ip(ms->map, ip);
target = map__find_symbol(ms->map, ip, NULL);
if (target == NULL)
if (target == NULL) {
ui_helpline__puts("The called function was not found.");
continue;
}
notes = symbol__annotation(target);
pthread_mutex_lock(&notes->lock);