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Merge remote-tracking branch 'tip/perf/urgent' into perf/core

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Merge reason: We are going to queue up a dependent patch:

"perf tools: Move parse event automated tests to separated object"

That depends on:

commit e7c72d8
perf tools: Add 'G' and 'H' modifiers to event parsing

Conflicts:
	tools/perf/builtin-stat.c

Conflicted with the recent 'perf_target' patches when checking the
result of perf_evsel open routines to see if a retry is needed to cope
with older kernels where the exclude guest/host perf_event_attr bits
were not used.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo
2012-05-18 13:13:33 -03:00
parent 16fa7e8200 9b63776fa3
commit 16ee6576e2
351 changed files with 3529 additions and 2088 deletions
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35
tools/perf/builtin-stat.c
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@@ -282,6 +282,8 @@ static int create_perf_stat_counter(struct perf_evsel *evsel,
{
struct perf_event_attr *attr = &evsel->attr;
struct xyarray *group_fd = NULL;
bool exclude_guest_missing = false;
int ret;
if (group && evsel != first)
group_fd = first->fd;
@@ -292,16 +294,39 @@ static int create_perf_stat_counter(struct perf_evsel *evsel,
attr->inherit = !no_inherit;
if (perf_target__has_cpu(&target))
return perf_evsel__open_per_cpu(evsel, evsel_list->cpus,
group, group_fd);
retry:
if (exclude_guest_missing)
evsel->attr.exclude_guest = evsel->attr.exclude_host = 0;
if (perf_target__has_cpu(&target)) {
ret = perf_evsel__open_per_cpu(evsel, evsel_list->cpus,
group, group_fd);
if (ret)
goto check_ret;
return 0;
}
if (!perf_target__has_task(&target) && (!group || evsel == first)) {
attr->disabled = 1;
attr->enable_on_exec = 1;
}
return perf_evsel__open_per_thread(evsel, evsel_list->threads,
group, group_fd);
ret = perf_evsel__open_per_thread(evsel, evsel_list->threads,
group, group_fd);
if (!ret)
return 0;
/* fall through */
check_ret:
if (ret && errno == EINVAL) {
if (!exclude_guest_missing &&
(evsel->attr.exclude_guest || evsel->attr.exclude_host)) {
pr_debug("Old kernel, cannot exclude "
"guest or host samples.\n");
exclude_guest_missing = true;
goto retry;
}
}
return ret;
}
/*