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authorIan Rogers <irogers@google.com>2023-06-09 02:28:03 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2023-06-12 21:57:53 +0300
commit0dd5041c9a0eaf8c5c3fd46df4ee60f877799f44 (patch)
treeb963c4b2639a6f52ed6c38d71f2c11a84a51b43e /tools/perf/builtin-timechart.c
parent620be847f459fce62f673311d035cd298581b1eb (diff)
downloadlinux-0dd5041c9a0eaf8c5c3fd46df4ee60f877799f44.tar.xz
perf addr_location: Add init/exit/copy functions
struct addr_location holds references to multiple reference counted objects. Add init/exit functions to make maintenance of those more consistent with the rest of the code and to try to avoid leaks. Modification of thread reference counts isn't included in this change. Committer notes: I needed to initialize result to sample->ip to make sure is set to something, fixing a compile time error, mostly keeping the previous logic as build_alloc_func_list() already does debugging/error prints about what went wrong if it takes the 'goto out'. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Ali Saidi <alisaidi@amazon.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: Brian Robbins <brianrob@linux.microsoft.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: Dmitrii Dolgov <9erthalion6@gmail.com> Cc: Fangrui Song <maskray@google.com> Cc: German Gomez <german.gomez@arm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ivan Babrou <ivan@cloudflare.com> Cc: James Clark <james.clark@arm.com> Cc: Jing Zhang <renyu.zj@linux.alibaba.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: K Prateek Nayak <kprateek.nayak@amd.com> Cc: Kan Liang <kan.liang@linux.intel.com> Cc: Leo Yan <leo.yan@linaro.org> Cc: Liam Howlett <liam.howlett@oracle.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ravi Bangoria <ravi.bangoria@amd.com> Cc: Sean Christopherson <seanjc@google.com> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: Wenyu Liu <liuwenyu7@huawei.com> Cc: Will Deacon <will@kernel.org> Cc: Yang Jihong <yangjihong1@huawei.com> Cc: Ye Xingchen <ye.xingchen@zte.com.cn> Cc: Yuan Can <yuancan@huawei.com> Cc: coresight@lists.linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: https://lore.kernel.org/r/20230608232823.4027869-7-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-timechart.c')
-rw-r--r--tools/perf/builtin-timechart.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index 829d99fecfd0..19d4542ea18a 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -498,7 +498,6 @@ static const char *cat_backtrace(union perf_event *event,
char *p = NULL;
size_t p_len;
u8 cpumode = PERF_RECORD_MISC_USER;
- struct addr_location tal;
struct ip_callchain *chain = sample->callchain;
FILE *f = open_memstream(&p, &p_len);
@@ -507,6 +506,7 @@ static const char *cat_backtrace(union perf_event *event,
return NULL;
}
+ addr_location__init(&al);
if (!chain)
goto exit;
@@ -518,6 +518,7 @@ static const char *cat_backtrace(union perf_event *event,
for (i = 0; i < chain->nr; i++) {
u64 ip;
+ struct addr_location tal;
if (callchain_param.order == ORDER_CALLEE)
ip = chain->ips[i];
@@ -544,20 +545,22 @@ static const char *cat_backtrace(union perf_event *event,
* Discard all.
*/
zfree(&p);
- goto exit_put;
+ goto exit;
}
continue;
}
+ addr_location__init(&tal);
tal.filtered = 0;
if (thread__find_symbol(al.thread, cpumode, ip, &tal))
fprintf(f, "..... %016" PRIx64 " %s\n", ip, tal.sym->name);
else
fprintf(f, "..... %016" PRIx64 "\n", ip);
+
+ addr_location__exit(&tal);
}
-exit_put:
- addr_location__put(&al);
exit:
+ addr_location__exit(&al);
fclose(f);
return p;