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authorArnaldo Carvalho de Melo <acme@redhat.com>2023-04-18 17:33:48 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2023-04-19 10:52:54 -0300
commitfe693d951e3c303b4fb6c712f8affecbe9e8b001 (patch)
tree8e38165abc611742b25d7a1f2bfed3406c361193 /tools/perf/tests
parent3ad1be6faef9a482c3098928220fcafaa51a1283 (diff)
perf maps: Add maps__refcnt() accessor to allow checking maps pointer
To remove one more direct access to 'struct maps' so that we can intercept accesses to its instantiations and refcount check it to catch use after free, etc. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/tests')
-rw-r--r--tools/perf/tests/thread-maps-share.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/tools/perf/tests/thread-maps-share.c b/tools/perf/tests/thread-maps-share.c
index 84edd82c519e..caf8fbe7c440 100644
--- a/tools/perf/tests/thread-maps-share.c
+++ b/tools/perf/tests/thread-maps-share.c
@@ -43,7 +43,7 @@ static int test__thread_maps_share(struct test_suite *test __maybe_unused, int s
leader && t1 && t2 && t3 && other);
maps = leader->maps;
- TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&maps->refcnt), 4);
+ TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(maps__refcnt(maps)), 4);
/* test the maps pointer is shared */
TEST_ASSERT_VAL("maps don't match", maps == t1->maps);
@@ -71,25 +71,25 @@ static int test__thread_maps_share(struct test_suite *test __maybe_unused, int s
machine__remove_thread(machine, other_leader);
other_maps = other->maps;
- TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&other_maps->refcnt), 2);
+ TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(maps__refcnt(other_maps)), 2);
TEST_ASSERT_VAL("maps don't match", other_maps == other_leader->maps);
/* release thread group */
thread__put(leader);
- TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&maps->refcnt), 3);
+ TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(maps__refcnt(maps)), 3);
thread__put(t1);
- TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&maps->refcnt), 2);
+ TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(maps__refcnt(maps)), 2);
thread__put(t2);
- TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&maps->refcnt), 1);
+ TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(maps__refcnt(maps)), 1);
thread__put(t3);
/* release other group */
thread__put(other_leader);
- TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(&other_maps->refcnt), 1);
+ TEST_ASSERT_EQUAL("wrong refcnt", refcount_read(maps__refcnt(other_maps)), 1);
thread__put(other);