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perf annotate: Introduce scnprintf ins_ops method

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And implement the jump one, where if the operands string is not passed,
a compact form that uses just the target address is used.

Right now this is toggled via the 'o' option in the annotate browser,
switching from:

    0.00 :         ffffffff811661e8:       je     ffffffff81166204 <mem_cgroup_count_vm_event+0x44>
    0.00 :         ffffffff811661ea:       cmp    $0xb,%esi
    0.00 :         ffffffff811661ed:       je     ffffffff811661f8 <mem_cgroup_count_vm_event+0x38>

To:

    0.00 :         28:       je     44
    0.00 :         2a:       cmp    $0xb,%esi
    0.00 :         2d:       je     38

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
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-o88q46yh4kxgpd1chk5gvjl5@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 10:16:27 -03:00
parent d86b0597c4
commit 28548d78ad
3 changed files with 25 additions and 2 deletions
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13
tools/perf/ui/browsers/annotate.c
View file

@ -83,7 +83,7 @@ static void annotate_browser__write(struct ui_browser *self, void *entry, int ro
else if (dl->offset == -1)
slsmg_write_nstring(dl->line, width - 18);
else {
char bf[64];
char bf[256], *line = dl->line;
u64 addr = dl->offset;
int printed, color = -1;
@ -96,7 +96,16 @@ static void annotate_browser__write(struct ui_browser *self, void *entry, int ro
slsmg_write_nstring(bf, printed);
if (change_color)
ui_browser__set_color(self, color);
slsmg_write_nstring(dl->line, width - 18 - printed);
if (dl->ins && dl->ins->ops->scnprintf) {
dl->ins->ops->scnprintf(dl->ins, bf, sizeof(bf),
!ab->use_offset ? dl->operands : NULL,
dl->target);
line = bf;
slsmg_write_nstring(" ", 7);
printed += 7;
}
slsmg_write_nstring(line, width - 18 - printed);
}
if (current_entry)

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

@ -44,8 +44,18 @@ static int jump_ops__parse_target(const char *operands, u64 *target)
return 0;
}
static int jump_ops__scnprintf(struct ins *ins, char *bf, size_t size,
const char *operands, u64 target)
{
if (operands)
return scnprintf(bf, size, "%-6.6s %s", ins->name, operands);
return scnprintf(bf, size, "%-6.6s %" PRIx64, ins->name, target);
}
static struct ins_ops jump_ops = {
.parse_target = jump_ops__parse_target,
.scnprintf = jump_ops__scnprintf,
};
bool ins__is_jump(const struct ins *ins)

4
tools/perf/util/annotate.h
View file

@ -7,8 +7,12 @@
#include <linux/list.h>
#include <linux/rbtree.h>
struct ins;
struct ins_ops {
int (*parse_target)(const char *operands, u64 *target);
int (*scnprintf)(struct ins *ins, char *bf, size_t size,
const char *operands, u64 target);
};
struct ins {