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Message-Id: <20211202162654.29704-1-cristian.marussi@arm.com>
Date: Thu, 2 Dec 2021 16:26:52 +0000
From: Cristian Marussi <cristian.marussi@....com>
To: linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: cyphar@...har.com, shuah@...nel.org,
Cristian Marussi <cristian.marussi@....com>
Subject: [PATCH 1/3] selftests: openat2: Print also errno in failure messages
In E_func() macro, on error, print also errno in order to aid debugging.
Signed-off-by: Cristian Marussi <cristian.marussi@....com>
---
tools/testing/selftests/openat2/helpers.h | 11 ++++++-----
1 file 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__)
--
2.17.1
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