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perf addr_location: Add init/exit/copy functions

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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>
This commit is contained in:
Ian Rogers
2023-06-08 16:28:03 -07:00
committed by Arnaldo Carvalho de Melo
parent 620be847f4
commit 0dd5041c9a
35 changed files with 368 additions and 166 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
tools/perf/util/data-convert-json.c
View File

@@ -154,12 +154,14 @@ static int process_sample_event(struct perf_tool *tool,
{
struct convert_json *c = container_of(tool, struct convert_json, tool);
FILE *out = c->out;
struct addr_location al, tal;
struct addr_location al;
u64 sample_type = __evlist__combined_sample_type(evsel->evlist);
u8 cpumode = PERF_RECORD_MISC_USER;
addr_location__init(&al);
if (machine__resolve(machine, &al, sample) < 0) {
pr_err("Sample resolution failed!\n");
addr_location__exit(&al);
return -1;
}
@@ -190,6 +192,7 @@ static int process_sample_event(struct perf_tool *tool,
for (i = 0; i < sample->callchain->nr; ++i) {
u64 ip = sample->callchain->ips[i];
struct addr_location tal;
if (ip >= PERF_CONTEXT_MAX) {
switch (ip) {
@@ -215,8 +218,10 @@ static int process_sample_event(struct perf_tool *tool,
else
fputc(',', out);
addr_location__init(&tal);
ok = thread__find_symbol(al.thread, cpumode, ip, &tal);
output_sample_callchain_entry(tool, ip, ok ? &tal : NULL);
addr_location__exit(&tal);
}
} else {
output_sample_callchain_entry(tool, sample->ip, &al);
@@ -245,6 +250,7 @@ static int process_sample_event(struct perf_tool *tool,
}
#endif
output_json_format(out, false, 2, "}");
addr_location__exit(&al);
return 0;
}