From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
Namhyung Kim <namhyung@kernel.org>,
Jin Yao <yao.jin@linux.intel.com>,
Milian Wolff <milian.wolff@kdab.com>,
Peter Zijlstra <peterz@infradead.org>,
kernel-team@lge.com, Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 18/19] perf srcline: Fix memory leak in addr2inlines()
Date: Fri, 3 Nov 2017 10:55:02 -0300 [thread overview]
Message-ID: <20171103135503.4921-19-acme@kernel.org> (raw)
In-Reply-To: <20171103135503.4921-1-acme@kernel.org>
From: Namhyung Kim <namhyung@kernel.org>
When libbfd is not used, addr2inlines() executes `addr2line -i` and
process output line by line. But it resets filename to NULL in the loop
so getline() allocates additional memory everytime instead of realloc.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: kernel-team@lge.com
Link: http://lkml.kernel.org/r/20171031020654.31163-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/util/srcline.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index c143c3bc1ef8..51dc49c65476 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -456,20 +456,17 @@ static struct inline_node *addr2inlines(const char *dso_name, u64 addr,
while (getline(&filename, &len, fp) != -1) {
char *srcline;
- if (filename_split(filename, &line_nr) != 1) {
- free(filename);
+ if (filename_split(filename, &line_nr) != 1)
goto out;
- }
srcline = srcline_from_fileline(filename, line_nr);
if (inline_list__append(sym, srcline, node) != 0)
goto out;
-
- filename = NULL;
}
out:
pclose(fp);
+ free(filename);
return node;
}
--
2.13.6
next prev parent reply other threads:[~2017-11-03 13:57 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-03 13:54 [GIT PULL 00/19] perf/core improvements and fixes Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 01/19] perf script: Add a few missing conversions to fprintf style Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 02/19] perf script: Use pr_debug where appropriate Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 03/19] perf script: Use event_format__fprintf() Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 04/19] perf evsel: Restore evsel->priv as a tool private area Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 05/19] perf script: Allow creating per-event dump files Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 06/19] tools include uapi: Grab a copy of linux/prctl.h Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 07/19] perf trace beauty prctl: Generate 'option' string table from kernel headers Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 08/19] perf script: Print information about per-event-dump files Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 09/19] perf tools: Rename struct perf_data_file to perf_data Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 10/19] perf tools: Add struct perf_data_file Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 11/19] perf tools: Add perf_data_file__write function Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 12/19] perf stat: Move the shadow stats scale computation in perf_stat__update_shadow_stats Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 13/19] perf stat: Make --per-thread update shadow stats to show metrics Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 14/19] perf callchain: Fix double mapping al->addr for children without self period Arnaldo Carvalho de Melo
2017-11-03 13:54 ` [PATCH 15/19] tools include uapi: Grab a copy of linux/kcmp.h Arnaldo Carvalho de Melo
2017-11-03 13:55 ` [PATCH 16/19] perf trace beauty: Implement pid_fd beautifier Arnaldo Carvalho de Melo
2017-11-03 13:55 ` [PATCH 17/19] perf trace beauty kcmp: Beautify arguments Arnaldo Carvalho de Melo
2017-11-03 13:55 ` Arnaldo Carvalho de Melo [this message]
2017-11-03 13:55 ` [PATCH 19/19] perf srcline: Show correct function name for srcline of callchains Arnaldo Carvalho de Melo
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=20171103135503.4921-19-acme@kernel.org \
--to=acme@kernel.org \
--cc=acme@redhat.com \
--cc=kernel-team@lge.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-perf-users@vger.kernel.org \
--cc=milian.wolff@kdab.com \
--cc=mingo@kernel.org \
--cc=namhyung@kernel.org \
--cc=peterz@infradead.org \
--cc=yao.jin@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).