From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>, Jiri Olsa <jolsa@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
Ian Rogers <irogers@google.com>,
Adrian Hunter <adrian.hunter@intel.com>,
linux-perf-users@vger.kernel.org,
Kan Liang <kan.liang@linux.intel.com>,
Zhengjun Xing <zhengjun.xing@linux.intel.com>,
James Clark <james.clark@arm.com>,
Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Subject: [PATCH 04/15] perf stat: Use scnprintf() in prepare_interval()
Date: Wed, 23 Nov 2022 10:01:57 -0800 [thread overview]
Message-ID: <20221123180208.2068936-5-namhyung@kernel.org> (raw)
In-Reply-To: <20221123180208.2068936-1-namhyung@kernel.org>
It should not use sprintf() anymore. Let's pass the buffer size and use the
safer scnprintf() instead.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/util/stat-display.c | 20 ++++++++++----------
1 file changed, 10 insertions(+), 10 deletions(-)
diff --git a/tools/perf/util/stat-display.c b/tools/perf/util/stat-display.c
index 15c88b9b5aa3..744b7a40f59a 100644
--- a/tools/perf/util/stat-display.c
+++ b/tools/perf/util/stat-display.c
@@ -1073,23 +1073,23 @@ static void print_metric_headers(struct perf_stat_config *config,
}
static void prepare_interval(struct perf_stat_config *config,
- char *prefix, struct timespec *ts)
+ char *prefix, size_t len, struct timespec *ts)
{
if (config->iostat_run)
return;
if (config->csv_output)
- sprintf(prefix, "%lu.%09lu%s", (unsigned long) ts->tv_sec,
- ts->tv_nsec, config->csv_sep);
+ scnprintf(prefix, len, "%lu.%09lu%s",
+ (unsigned long) ts->tv_sec, ts->tv_nsec, config->csv_sep);
else if (!config->json_output)
- sprintf(prefix, "%6lu.%09lu ", (unsigned long) ts->tv_sec,
- ts->tv_nsec);
+ scnprintf(prefix, len, "%6lu.%09lu ",
+ (unsigned long) ts->tv_sec, ts->tv_nsec);
else if (!config->metric_only)
- sprintf(prefix, "{\"interval\" : %lu.%09lu, ", (unsigned long)
- ts->tv_sec, ts->tv_nsec);
+ scnprintf(prefix, len, "{\"interval\" : %lu.%09lu, ",
+ (unsigned long) ts->tv_sec, ts->tv_nsec);
else
- sprintf(prefix, "{\"interval\" : %lu.%09lu}", (unsigned long)
- ts->tv_sec, ts->tv_nsec);
+ scnprintf(prefix, len, "{\"interval\" : %lu.%09lu}",
+ (unsigned long) ts->tv_sec, ts->tv_nsec);
}
static void print_header_interval_std(struct perf_stat_config *config,
@@ -1390,7 +1390,7 @@ void evlist__print_counters(struct evlist *evlist, struct perf_stat_config *conf
if (interval) {
prefix = buf;
- prepare_interval(config, prefix, ts);
+ prepare_interval(config, buf, sizeof(buf), ts);
}
print_header(config, _target, evlist, argc, argv);
--
2.38.1.584.g0f3c55d4c2-goog
next prev parent reply other threads:[~2022-11-23 18:02 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-23 18:01 [PATCHSET 00/15] perf stat: Improve perf stat output (v2) Namhyung Kim
2022-11-23 18:01 ` [PATCH 01/15] perf stat: Fix cgroup display in JSON output Namhyung Kim
2022-11-23 23:20 ` Ian Rogers
2022-11-24 12:45 ` Arnaldo Carvalho de Melo
2022-11-23 18:01 ` [PATCH 02/15] perf stat: Move summary prefix printing logic in CSV output Namhyung Kim
2022-11-23 23:20 ` Ian Rogers
2022-11-23 18:01 ` [PATCH 03/15] perf stat: Do not align time prefix " Namhyung Kim
2022-11-23 23:21 ` Ian Rogers
2022-11-23 18:01 ` Namhyung Kim [this message]
2022-11-23 23:22 ` [PATCH 04/15] perf stat: Use scnprintf() in prepare_interval() Ian Rogers
2022-11-23 18:01 ` [PATCH 05/15] perf stat: Remove prefix argument in print_metric_headers() Namhyung Kim
2022-11-23 23:23 ` Ian Rogers
2022-11-30 5:09 ` Ian Rogers
2022-11-30 5:13 ` Ian Rogers
2022-11-30 21:21 ` Namhyung Kim
2022-12-05 12:22 ` Arnaldo Carvalho de Melo
2022-12-05 12:40 ` Arnaldo Carvalho de Melo
2022-11-23 18:01 ` [PATCH 06/15] perf stat: Remove metric_only argument in print_counter_aggrdata() Namhyung Kim
2022-11-23 23:23 ` Ian Rogers
2022-11-23 18:02 ` [PATCH 07/15] perf stat: Pass const char *prefix to display routines Namhyung Kim
2022-11-23 23:24 ` Ian Rogers
2022-11-23 18:02 ` [PATCH 08/15] perf stat: Use struct outstate in evlist__print_counters() Namhyung Kim
2022-11-23 23:24 ` Ian Rogers
2022-11-23 18:02 ` [PATCH 09/15] perf stat: Pass struct outstate to print_metric_begin() Namhyung Kim
2022-11-23 23:25 ` Ian Rogers
2022-11-23 18:02 ` [PATCH 10/15] perf stat: Pass struct outstate to printout() Namhyung Kim
2022-11-23 23:26 ` Ian Rogers
2022-11-23 18:02 ` [PATCH 11/15] perf stat: Do not pass runtime_stat " Namhyung Kim
2022-11-23 23:27 ` Ian Rogers
2022-11-23 18:02 ` [PATCH 12/15] perf stat: Pass through struct outstate Namhyung Kim
2022-11-23 23:27 ` Ian Rogers
2022-11-23 18:02 ` [PATCH 13/15] perf stat: Fix JSON output in metric-only mode Namhyung Kim
2022-11-23 23:28 ` Ian Rogers
2022-11-23 18:02 ` [PATCH 14/15] perf stat: Rename "aggregate-number" to "cpu-count" in JSON Namhyung Kim
2022-11-23 23:30 ` Ian Rogers
2022-11-25 7:50 ` Namhyung Kim
2022-11-27 3:14 ` Ian Rogers
2022-11-29 22:45 ` Namhyung Kim
2022-11-30 5:01 ` Ian Rogers
2022-11-23 18:02 ` [PATCH 15/15] perf stat: Tidy up JSON metric-only output when no metrics Namhyung Kim
2022-11-23 23:31 ` Ian Rogers
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20221123180208.2068936-5-namhyung@kernel.org \
--to=namhyung@kernel.org \
--cc=acme@kernel.org \
--cc=adrian.hunter@intel.com \
--cc=atrajeev@linux.vnet.ibm.com \
--cc=irogers@google.com \
--cc=james.clark@arm.com \
--cc=jolsa@kernel.org \
--cc=kan.liang@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=mingo@kernel.org \
--cc=peterz@infradead.org \
--cc=zhengjun.xing@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).