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perf script: Unify the expressions indicating "unknown"

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The perf script command uses various expressions to indicate "unknown".

It is unfriendly for user scripts to parse it. So, this patch unifies
the expressions to "[unknown]".

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: yrl.pp-manager.tt@hitachi.com
Link: http://lkml.kernel.org/r/20120130044257.2384.62905.stgit@linux3
Signed-off-by: Akihiro Nagai <akihiro.nagai.hw@hitachi.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Akihiro Nagai 2012-01-30 13:42:57 +09:00 • committed by Arnaldo Carvalho de Melo
parent f9d3699656
commit 547a92e0ae
6 changed files with 42 additions and 39 deletions
Download patch file Download diff file Expand all files Collapse all files

20
tools/perf/builtin-script.c
View file

@ -300,7 +300,7 @@ static void print_sample_start(struct perf_sample *sample,
} else
evname = __event_name(attr->type, attr->config);
printf("%s: ", evname ? evname : "(unknown)");
printf("%s: ", evname ? evname : "[unknown]");
}
}
@ -323,7 +323,6 @@ static void print_sample_addr(union perf_event *event,
{
struct addr_location al;
u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
const char *symname, *dsoname;
printf("%16" PRIx64, sample->addr);
@ -343,21 +342,14 @@ static void print_sample_addr(union perf_event *event,
al.sym = map__find_symbol(al.map, al.addr, NULL);
if (PRINT_FIELD(SYM)) {
if (al.sym && al.sym->name)
symname = al.sym->name;
else
symname = "";
printf(" %16s", symname);
printf(" ");
symbol__fprintf_symname(al.sym, stdout);
}
if (PRINT_FIELD(DSO)) {
if (al.map && al.map->dso && al.map->dso->name)
dsoname = al.map->dso->name;
else
dsoname = "";
printf(" (%s)", dsoname);
printf(" (");
map__fprintf_dsoname(al.map, stdout);
printf(")");
}
}