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| author | Ian Rogers <irogers@google.com> | 2023-10-24 15:23:07 -0700 |
|---|---|---|
| committer | Namhyung Kim <namhyung@kernel.org> | 2023-10-25 13:37:22 -0700 |
| commit | 78c32f4cb12f9430e29402118635dcf972b7d325 (patch) | |
| tree | cb7dfd433eb0341dff198952f969daff3f5d6d1d /tools/perf/util/symbol.c | |
| parent | 75265320d290c5f5891f16967b94883676c46705 (diff) | |
| download | lwn-78c32f4cb12f9430e29402118635dcf972b7d325.tar.gz lwn-78c32f4cb12f9430e29402118635dcf972b7d325.zip | |
libperf rc_check: Add RC_CHK_EQUAL
Comparing pointers with reference count checking is tricky to avoid a
SEGV. Add a convenience macro to simplify and use.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: K Prateek Nayak <kprateek.nayak@amd.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sandipan Das <sandipan.das@amd.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: James Clark <james.clark@arm.com>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: liuwenyu <liuwenyu7@huawei.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Song Liu <song@kernel.org>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Yanteng Si <siyanteng@loongson.cn>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: https://lore.kernel.org/r/20231024222353.3024098-5-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to 'tools/perf/util/symbol.c')
| -rw-r--r-- | tools/perf/util/symbol.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 96587fd7a5a2..822f4dcebfe6 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -877,7 +877,7 @@ static int maps__split_kallsyms(struct maps *kmaps, struct dso *dso, u64 delta, *module++ = '\0'; curr_map_dso = map__dso(curr_map); if (strcmp(curr_map_dso->short_name, module)) { - if (RC_CHK_ACCESS(curr_map) != RC_CHK_ACCESS(initial_map) && + if (!RC_CHK_EQUAL(curr_map, initial_map) && dso->kernel == DSO_SPACE__KERNEL_GUEST && machine__is_default_guest(machine)) { /* @@ -1469,7 +1469,7 @@ static int dso__load_kcore(struct dso *dso, struct map *map, list_del_init(&new_node->node); - if (RC_CHK_ACCESS(new_map) == RC_CHK_ACCESS(replacement_map)) { + if (RC_CHK_EQUAL(new_map, replacement_map)) { struct map *map_ref; map__set_start(map, map__start(new_map)); |