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authorMickaël Salaün <mic@digikod.net>2024-05-11 19:14:43 +0200
committerMickaël Salaün <mic@digikod.net>2024-05-11 19:18:46 +0200
commit24cf65a6226643f0f4be16fb2f9c0575b0edd967 (patch)
tree1b0cc8346ce0f2af4c70f47239211b91d6602562
parent821bc4a8fd2454ff6d719aae7cac93f60567fe65 (diff)
selftests/harness: Share _metadata between forked processes
Unconditionally share _metadata between all forked processes, which enables to actually catch errors which were previously ignored. This is required for a following commit replacing vfork() with clone3() and CLONE_VFORK (i.e. not sharing the full memory) . It should also be useful to share _metadata to extend expectations to test process's forks. For instance, this change identified a wrong expectation in pidfd_setns_test. Because this _metadata is used by the new XFAIL_ADD(), use a global pointer initialized in TEST_F(). This is OK because only XFAIL_ADD() use it, and XFAIL_ADD() already depends on TEST_F(). Cc: Jakub Kicinski <kuba@kernel.org> Cc: Shuah Khan <skhan@linuxfoundation.org> Cc: Will Drewry <wad@chromium.org> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20240511171445.904356-9-mic@digikod.net Signed-off-by: Mickaël Salaün <mic@digikod.net>
-rw-r--r--tools/testing/selftests/kselftest_harness.h26
1 files changed, 15 insertions, 11 deletions
diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
index 201040207c85..28415798fa60 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -430,19 +430,19 @@ static inline pid_t clone3_vfork(void)
kill(getpid(), WTERMSIG(status)); \
__test_check_assert(_metadata); \
} \
- static struct __test_metadata \
- _##fixture_name##_##test_name##_object = { \
- .name = #test_name, \
- .fn = &wrapper_##fixture_name##_##test_name, \
- .fixture = &_##fixture_name##_fixture_object, \
- .termsig = signal, \
- .timeout = tmout, \
- .teardown_parent = false, \
- }; \
+ static struct __test_metadata *_##fixture_name##_##test_name##_object; \
static void __attribute__((constructor)) \
_register_##fixture_name##_##test_name(void) \
{ \
- __register_test(&_##fixture_name##_##test_name##_object); \
+ struct __test_metadata *object = mmap(NULL, sizeof(*object), \
+ PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS, -1, 0); \
+ object->name = #test_name; \
+ object->fn = &wrapper_##fixture_name##_##test_name; \
+ object->fixture = &_##fixture_name##_fixture_object; \
+ object->termsig = signal; \
+ object->timeout = tmout; \
+ _##fixture_name##_##test_name##_object = object; \
+ __register_test(object); \
} \
static void fixture_name##_##test_name( \
struct __test_metadata __attribute__((unused)) *_metadata, \
@@ -850,11 +850,12 @@ struct __test_xfail {
{ \
.fixture = &_##fixture_name##_fixture_object, \
.variant = &_##fixture_name##_##variant_name##_object, \
- .test = &_##fixture_name##_##test_name##_object, \
}; \
static void __attribute__((constructor)) \
_register_##fixture_name##_##variant_name##_##test_name##_xfail(void) \
{ \
+ _##fixture_name##_##variant_name##_##test_name##_xfail.test = \
+ _##fixture_name##_##test_name##_object; \
__register_xfail(&_##fixture_name##_##variant_name##_##test_name##_xfail); \
}
@@ -1181,6 +1182,9 @@ void __run_test(struct __fixture_metadata *f,
/* reset test struct */
t->exit_code = KSFT_PASS;
t->trigger = 0;
+ t->aborted = false;
+ t->setup_completed = false;
+ memset(t->env, 0, sizeof(t->env));
memset(t->results->reason, 0, sizeof(t->results->reason));
if (asprintf(&test_name, "%s%s%s.%s", f->name,