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Subject[GIT PULL] Kselftest update for Linux 5.18-rc2
Date
Hi Linus,

Please pull the following Kselftest update for Linux 5.18-rc2.

This Kselftest fixes update for Linux 5.18-rc2 consists of build,
run-times fixes to tests:

- header dependencies
- missing tear-downs to release allocated resources in assert paths
- missing error messages when build fails
- coccicheck and unused variable warnings

diff is attached.

thanks,
-- Shuah

----------------------------------------------------------------
The following changes since commit 3123109284176b1532874591f7c81f3837bbdc17:

Linux 5.18-rc1 (2022-04-03 14:08:21 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest tags/linux-kselftest-fixes-5.18-rc2

for you to fetch changes up to 79ee8aa31d518c1fd5f3b1b1ac39dd1fb4dc7039:

selftests/harness: Pass variant to teardown (2022-04-04 13:37:48 -0600)

----------------------------------------------------------------
linux-kselftest-fixes-5.18-rc2

This Kselftest fixes update for Linux 5.18-rc2 consists of build,
run-times fixes to tests:

- header dependencies
- missing tear-downs to release allocated resources in assert paths
- missing error messages when build fails
- coccicheck and unused variable warnings

----------------------------------------------------------------
Axel Rasmussen (2):
selftests: fix header dependency for pid_namespace selftests
selftests: fix an unused variable warning in pidfd selftest

Geliang Tang (1):
selftests: x86: add 32bit build warnings for SUSE

Guo Zhengkui (2):
selftests/vDSO: fix array_size.cocci warning
selftests/proc: fix array_size.cocci warning

Kees Cook (1):
selftests/harness: Run TEARDOWN for ASSERT failures

Willem de Bruijn (1):
selftests/harness: Pass variant to teardown

tools/testing/selftests/kselftest_harness.h | 59 +++++++++++++++-------
tools/testing/selftests/pid_namespace/Makefile | 6 +--
tools/testing/selftests/pidfd/pidfd_wait.c | 1 -
tools/testing/selftests/proc/proc-pid-vm.c | 6 ++-
.../testing/selftests/vDSO/vdso_test_correctness.c | 9 ++--
tools/testing/selftests/x86/Makefile | 4 ++
6 files changed, 54 insertions(+), 31 deletions(-)
----------------------------------------------------------------
diff --git a/tools/testing/selftests/kselftest_harness.h b/tools/testing/selftests/kselftest_harness.h
index 11779405dc80..25f4d54067c0 100644
--- a/tools/testing/selftests/kselftest_harness.h
+++ b/tools/testing/selftests/kselftest_harness.h
@@ -64,6 +64,7 @@
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
+#include <setjmp.h>

#include "kselftest.h"

@@ -183,7 +184,10 @@
struct __test_metadata *_metadata, \
struct __fixture_variant_metadata *variant) \
{ \
- test_name(_metadata); \
+ _metadata->setup_completed = true; \
+ if (setjmp(_metadata->env) == 0) \
+ test_name(_metadata); \
+ __test_check_assert(_metadata); \
} \
static struct __test_metadata _##test_name##_object = \
{ .name = #test_name, \
@@ -287,7 +291,9 @@
#define FIXTURE_TEARDOWN(fixture_name) \
void fixture_name##_teardown( \
struct __test_metadata __attribute__((unused)) *_metadata, \
- FIXTURE_DATA(fixture_name) __attribute__((unused)) *self)
+ FIXTURE_DATA(fixture_name) __attribute__((unused)) *self, \
+ const FIXTURE_VARIANT(fixture_name) \
+ __attribute__((unused)) *variant)

/**
* FIXTURE_VARIANT() - Optionally called once per fixture
@@ -302,9 +308,9 @@
* ...
* };
*
- * Defines type of constant parameters provided to FIXTURE_SETUP() and TEST_F()
- * as *variant*. Variants allow the same tests to be run with different
- * arguments.
+ * Defines type of constant parameters provided to FIXTURE_SETUP(), TEST_F() and
+ * FIXTURE_TEARDOWN as *variant*. Variants allow the same tests to be run with
+ * different arguments.
*/
#define FIXTURE_VARIANT(fixture_name) struct _fixture_variant_##fixture_name

@@ -356,10 +362,7 @@
* Defines a test that depends on a fixture (e.g., is part of a test case).
* Very similar to TEST() except that *self* is the setup instance of fixture's
* datatype exposed for use by the implementation.
- *
- * Warning: use of ASSERT_* here will skip TEARDOWN.
*/
-/* TODO(wad) register fixtures on dedicated test lists. */
#define TEST_F(fixture_name, test_name) \
__TEST_F_IMPL(fixture_name, test_name, -1, TEST_TIMEOUT_DEFAULT)

@@ -381,12 +384,17 @@
/* fixture data is alloced, setup, and torn down per call. */ \
FIXTURE_DATA(fixture_name) self; \
memset(&self, 0, sizeof(FIXTURE_DATA(fixture_name))); \
- fixture_name##_setup(_metadata, &self, variant->data); \
- /* Let setup failure terminate early. */ \
- if (!_metadata->passed) \
- return; \
- fixture_name##_##test_name(_metadata, &self, variant->data); \
- fixture_name##_teardown(_metadata, &self); \
+ if (setjmp(_metadata->env) == 0) { \
+ fixture_name##_setup(_metadata, &self, variant->data); \
+ /* Let setup failure terminate early. */ \
+ if (!_metadata->passed) \
+ return; \
+ _metadata->setup_completed = true; \
+ fixture_name##_##test_name(_metadata, &self, variant->data); \
+ } \
+ if (_metadata->setup_completed) \
+ fixture_name##_teardown(_metadata, &self, variant->data); \
+ __test_check_assert(_metadata); \
} \
static struct __test_metadata \
_##fixture_name##_##test_name##_object = { \
@@ -683,7 +691,7 @@
*/
#define OPTIONAL_HANDLER(_assert) \
for (; _metadata->trigger; _metadata->trigger = \
- __bail(_assert, _metadata->no_print, _metadata->step))
+ __bail(_assert, _metadata))

#define __INC_STEP(_metadata) \
/* Keep "step" below 255 (which is used for "SKIP" reporting). */ \
@@ -830,6 +838,9 @@ struct __test_metadata {
bool timed_out; /* did this test timeout instead of exiting? */
__u8 step;
bool no_print; /* manual trigger when TH_LOG_STREAM is not available */
+ bool aborted; /* stopped test due to failed ASSERT */
+ bool setup_completed; /* did setup finish? */
+ jmp_buf env; /* for exiting out of test early */
struct __test_results *results;
struct __test_metadata *prev, *next;
};
@@ -848,16 +859,26 @@ static inline void __register_test(struct __test_metadata *t)
__LIST_APPEND(t->fixture->tests, t);
}

-static inline int __bail(int for_realz, bool no_print, __u8 step)
+static inline int __bail(int for_realz, struct __test_metadata *t)
{
+ /* if this is ASSERT, return immediately. */
if (for_realz) {
- if (no_print)
- _exit(step);
- abort();
+ t->aborted = true;
+ longjmp(t->env, 1);
}
+ /* otherwise, end the for loop and continue. */
return 0;
}

+static inline void __test_check_assert(struct __test_metadata *t)
+{
+ if (t->aborted) {
+ if (t->no_print)
+ _exit(t->step);
+ abort();
+ }
+}
+
struct __test_metadata *__active_test;
static void __timeout_handler(int sig, siginfo_t *info, void *ucontext)
{
diff --git a/tools/testing/selftests/pid_namespace/Makefile b/tools/testing/selftests/pid_namespace/Makefile
index dcaefa224ca0..edafaca1aeb3 100644
--- a/tools/testing/selftests/pid_namespace/Makefile
+++ b/tools/testing/selftests/pid_namespace/Makefile
@@ -1,8 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
CFLAGS += -g -I../../../../usr/include/

-TEST_GEN_PROGS := regression_enomem
+TEST_GEN_PROGS = regression_enomem

-include ../lib.mk
+LOCAL_HDRS += $(selfdir)/pidfd/pidfd.h

-$(OUTPUT)/regression_enomem: regression_enomem.c ../pidfd/pidfd.h
+include ../lib.mk
diff --git a/tools/testing/selftests/pidfd/pidfd_wait.c b/tools/testing/selftests/pidfd/pidfd_wait.c
index 17999e082aa7..070c1c876df1 100644
--- a/tools/testing/selftests/pidfd/pidfd_wait.c
+++ b/tools/testing/selftests/pidfd/pidfd_wait.c
@@ -95,7 +95,6 @@ TEST(wait_states)
.flags = CLONE_PIDFD | CLONE_PARENT_SETTID,
.exit_signal = SIGCHLD,
};
- int ret;
pid_t pid;
siginfo_t info = {
.si_signo = 0,
diff --git a/tools/testing/selftests/proc/proc-pid-vm.c b/tools/testing/selftests/proc/proc-pid-vm.c
index 18a3bde8bc96..28604c9f805c 100644
--- a/tools/testing/selftests/proc/proc-pid-vm.c
+++ b/tools/testing/selftests/proc/proc-pid-vm.c
@@ -46,6 +46,8 @@
#include <sys/time.h>
#include <sys/resource.h>

+#include "../kselftest.h"
+
static inline long sys_execveat(int dirfd, const char *pathname, char **argv, char **envp, int flags)
{
return syscall(SYS_execveat, dirfd, pathname, argv, envp, flags);
@@ -368,7 +370,7 @@ int main(void)
};
int i;

- for (i = 0; i < sizeof(S)/sizeof(S[0]); i++) {
+ for (i = 0; i < ARRAY_SIZE(S); i++) {
assert(memmem(buf, rv, S[i], strlen(S[i])));
}

@@ -417,7 +419,7 @@ int main(void)
};
int i;

- for (i = 0; i < sizeof(S)/sizeof(S[0]); i++) {
+ for (i = 0; i < ARRAY_SIZE(S); i++) {
assert(memmem(buf, rv, S[i], strlen(S[i])));
}
}
diff --git a/tools/testing/selftests/vDSO/vdso_test_correctness.c b/tools/testing/selftests/vDSO/vdso_test_correctness.c
index c4aea794725a..e691a3cf1491 100644
--- a/tools/testing/selftests/vDSO/vdso_test_correctness.c
+++ b/tools/testing/selftests/vDSO/vdso_test_correctness.c
@@ -20,6 +20,7 @@
#include <limits.h>

#include "vdso_config.h"
+#include "../kselftest.h"

static const char **name;

@@ -306,10 +307,8 @@ static void test_clock_gettime(void)
return;
}

- for (int clock = 0; clock < sizeof(clocknames) / sizeof(clocknames[0]);
- clock++) {
+ for (int clock = 0; clock < ARRAY_SIZE(clocknames); clock++)
test_one_clock_gettime(clock, clocknames[clock]);
- }

/* Also test some invalid clock ids */
test_one_clock_gettime(-1, "invalid");
@@ -370,10 +369,8 @@ static void test_clock_gettime64(void)
return;
}

- for (int clock = 0; clock < sizeof(clocknames) / sizeof(clocknames[0]);
- clock++) {
+ for (int clock = 0; clock < ARRAY_SIZE(clocknames); clock++)
test_one_clock_gettime64(clock, clocknames[clock]);
- }

/* Also test some invalid clock ids */
test_one_clock_gettime64(-1, "invalid");
diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile
index 53df7d3893d3..0388c4d60af0 100644
--- a/tools/testing/selftests/x86/Makefile
+++ b/tools/testing/selftests/x86/Makefile
@@ -92,6 +92,10 @@ warn_32bit_failure:
echo "If you are using a Fedora-like distribution, try:"; \
echo ""; \
echo " yum install glibc-devel.*i686"; \
+ echo ""; \
+ echo "If you are using a SUSE-like distribution, try:"; \
+ echo ""; \
+ echo " zypper install gcc-32bit glibc-devel-static-32bit"; \
exit 0;
endif
\
 
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