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authorCristian Marussi <cristian.marussi@arm.com>2022-01-26 10:27:21 +0000
committerShuah Khan <skhan@linuxfoundation.org>2022-01-27 16:30:49 -0700
commite051cdf655fa016692008a446a060eff06222bb5 (patch)
tree9c815d3d381c2ea7ed1092ee0f583fa61c9602ea /tools
parentb9199181a9ef8252e47e207be8c23e1f50662620 (diff)
selftests: openat2: Print also errno in failure messages
In E_func() macro, on error, print also errno in order to aid debugging. Cc: Aleksa Sarai <cyphar@cyphar.com> Signed-off-by: Cristian Marussi <cristian.marussi@arm.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/openat2/helpers.h11
1 files changed, 6 insertions, 5 deletions
diff --git a/tools/testing/selftests/openat2/helpers.h b/tools/testing/selftests/openat2/helpers.h
index a6ea27344db2..ad5d0ba5b6ce 100644
--- a/tools/testing/selftests/openat2/helpers.h
+++ b/tools/testing/selftests/openat2/helpers.h
@@ -62,11 +62,12 @@ bool needs_openat2(const struct open_how *how);
(similar to chroot(2)). */
#endif /* RESOLVE_IN_ROOT */
-#define E_func(func, ...) \
- do { \
- if (func(__VA_ARGS__) < 0) \
- ksft_exit_fail_msg("%s:%d %s failed\n", \
- __FILE__, __LINE__, #func);\
+#define E_func(func, ...) \
+ do { \
+ errno = 0; \
+ if (func(__VA_ARGS__) < 0) \
+ ksft_exit_fail_msg("%s:%d %s failed - errno:%d\n", \
+ __FILE__, __LINE__, #func, errno); \
} while (0)
#define E_asprintf(...) E_func(asprintf, __VA_ARGS__)