Re: [PATCH v5 08/11] perf/tools: Refactoring metricgroup__add_metric function

kajoljain
2020-03-18T11:42:55Z

On 3/17/20 8:39 PM, Jiri Olsa wrote:
> On Tue, Mar 17, 2020 at 11:53:30AM +0530, Kajol Jain wrote:
>> This patch refactor metricgroup__add_metric function where
>> some part of it move to function metricgroup__add_metric_param.
>> No logic change.
>
> can't compile this change:
>
> [jolsa@krava perf]$ make JOBS=1
> BUILD: Doing 'make -j1' parallel build
> CC util/metricgroup.o
> util/metricgroup.c: In function ‘metricgroup__add_metric_param’:
> util/metricgroup.c:486:6: error: too many arguments to function ‘expr__find_other’
> 486 | if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, 1) < 0)
> | ^~~~~~~~~~~~~~~~
> In file included from util/metricgroup.c:14:
> util/expr.h:25:5: note: declared here
> 25 | int expr__find_other(const char *expr, const char *one, const char ***other,
> | ^~~~~~~~~~~~~~~~
> mv: cannot stat 'util/.metricgroup.o.tmp': No such file or directory
> make[4]: *** [/home/jolsa/kernel/linux-perf/tools/build/Makefile.build:97: util/metricgroup.o] Error 1
> make[3]: *** [/home/jolsa/kernel/linux-perf/tools/build/Makefile.build:139: util] Error 2
> make[2]: *** [Makefile.perf:616: perf-in.o] Error 2
> make[1]: *** [Makefile.perf:225: sub-make] Error 2
> make: *** [Makefile:70: all] Error 2

Hi Jiri,
I made a mistake while arranging the patches in the series. I'll re-arrange it
and send it again.

Thanks,
Kajol

>
> jirka
>
>>
>> Signed-off-by: Kajol Jain <kjain@linux.ibm.com>
>> ---
>> tools/perf/util/metricgroup.c | 63 +++++++++++++++++++++--------------
>> 1 file changed, 38 insertions(+), 25 deletions(-)
>>
>> diff --git a/tools/perf/util/metricgroup.c b/tools/perf/util/metricgroup.c
>> index c3a8c701609a..b4919bcfbd8b 100644
>> --- a/tools/perf/util/metricgroup.c
>> +++ b/tools/perf/util/metricgroup.c
>> @@ -474,6 +474,41 @@ static bool metricgroup__has_constraint(struct pmu_event *pe)
>> return false;
>> }
>>
>> +static int metricgroup__add_metric_param(struct strbuf *events,
>> + struct list_head *group_list, struct pmu_event *pe)
>> +{
>> +
>> + const char **ids;
>> + int idnum;
>> + struct egroup *eg;
>> + int ret = -EINVAL;
>> +
>> + if (expr__find_other(pe->metric_expr, NULL, &ids, &idnum, 1) < 0)
>> + return ret;
>> +
>> + if (events->len > 0)
>> + strbuf_addf(events, ",");
>> +
>> + if (metricgroup__has_constraint(pe))
>> + metricgroup__add_metric_non_group(events, ids, idnum);
>> + else
>> + metricgroup__add_metric_weak_group(events, ids, idnum);
>> +
>> + eg = malloc(sizeof(*eg));
>> + if (!eg)
>> + ret = -ENOMEM;
>> +
>> + eg->ids = ids;
>> + eg->idnum = idnum;
>> + eg->metric_name = pe->metric_name;
>> + eg->metric_expr = pe->metric_expr;
>> + eg->metric_unit = pe->unit;
>> + list_add_tail(&eg->nd, group_list);
>> + ret = 0;
>> +
>> + return ret;
>> +}
>> +
>> static int metricgroup__add_metric(const char *metric, struct strbuf *events,
>> struct list_head *group_list)
>> {
>> @@ -493,35 +528,13 @@ static int metricgroup__add_metric(const char *metric, struct strbuf *events,
>> continue;
>> if (match_metric(pe->metric_group, metric) ||
>> match_metric(pe->metric_name, metric)) {
>> - const char **ids;
>> - int idnum;
>> - struct egroup *eg;
>>
>> pr_debug("metric expr %s for %s\n", pe->metric_expr, pe->metric_name);
>>
>> - if (expr__find_other(pe->metric_expr,
>> - NULL, &ids, &idnum) < 0)
>> + ret = metricgroup__add_metric_param(events,
>> + group_list, pe);
>> + if (ret == -EINVAL)
>> continue;
>> - if (events->len > 0)
>> - strbuf_addf(events, ",");
>> -
>> - if (metricgroup__has_constraint(pe))
>> - metricgroup__add_metric_non_group(events, ids, idnum);
>> - else
>> - metricgroup__add_metric_weak_group(events, ids, idnum);
>> -
>> - eg = malloc(sizeof(struct egroup));
>> - if (!eg) {
>> - ret = -ENOMEM;
>> - break;
>> - }
>> - eg->ids = ids;
>> - eg->idnum = idnum;
>> - eg->metric_name = pe->metric_name;
>> - eg->metric_expr = pe->metric_expr;
>> - eg->metric_unit = pe->unit;
>> - list_add_tail(&eg->nd, group_list);
>> - ret = 0;
>> }
>> }
>> return ret;
>> --
>> 2.18.1
>>
>