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perf annotate browser: Align jump labels

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Find out at browser startup the max width and use it when rendering jump
labels on the screen.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
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-7dxjiwqb77wz6f5lc05e0i0x@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2012-04-19 13:15:24 -03:00
parent b793a40185
commit 61e04b332e
3 changed files with 25 additions and 4 deletions
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17
tools/perf/ui/browsers/annotate.c
View file

@ -31,6 +31,7 @@ struct annotate_browser {
bool hide_src_code;
bool use_offset;
bool searching_backwards;
u8 offset_width;
char search_bf[128];
};
@ -92,10 +93,17 @@ static void annotate_browser__write(struct ui_browser *self, void *entry, int ro
if (!ab->use_offset)
addr += ab->start;
if (bdl->jump_target || !ab->use_offset)
printed = scnprintf(bf, sizeof(bf), " %" PRIx64 ":", addr);
else
printed = scnprintf(bf, sizeof(bf), " ");
if (!ab->use_offset) {
printed = scnprintf(bf, sizeof(bf), "%" PRIx64 ":", addr);
} else {
if (bdl->jump_target) {
printed = scnprintf(bf, sizeof(bf), "%*" PRIx64 ":",
ab->offset_width, addr);
} else {
printed = scnprintf(bf, sizeof(bf), "%*s ",
ab->offset_width, " ");
}
}
if (change_color)
color = ui_browser__set_color(self, HE_COLORSET_ADDR);
@ -687,6 +695,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
annotate_browser__mark_jump_targets(&browser, size);
browser.offset_width = hex_width(size);
browser.b.nr_entries = browser.nr_entries;
browser.b.entries = &notes->src->source,
browser.b.width += 18; /* Percentage */

10
tools/perf/util/util.c
View file

@ -148,3 +148,13 @@ int readn(int fd, void *buf, size_t n)
return buf - buf_start;
}
size_t hex_width(u64 v)
{
size_t n = 1;
while ((v >>= 4))
++n;
return n;
}

2
tools/perf/util/util.h
View file

@ -265,4 +265,6 @@ bool is_power_of_2(unsigned long n)
return (n != 0 && ((n & (n - 1)) == 0));
}
size_t hex_width(u64 v);
#endif