perf annotate: Introduce scnprintf ins_ops method
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>
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index a4296fd..ed1f89d 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -44,8 +44,18 @@
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)