diff options
author | Mark Brown <broonie@kernel.org> | 2023-09-28 17:38:11 +0300 |
---|---|---|
committer | Tan En De <ende.tan@starfivetech.com> | 2024-05-22 18:56:04 +0300 |
commit | db13945f4cdf468e9b7e7f4d78c76555595169b7 (patch) | |
tree | f02d8f14056e810de3a06f59f687b590308189af | |
parent | 039775eb4a17191487d20dca5381d87d6efd41cf (diff) | |
download | linux-db13945f4cdf468e9b7e7f4d78c76555595169b7.tar.xz |
kselftest: Add a ksft_perror() helper
[ Upstream commit 907f33028871fa7c9a3db1efd467b78ef82cce20 ]
The standard library perror() function provides a convenient way to print
an error message based on the current errno but this doesn't play nicely
with KTAP output. Provide a helper which does an equivalent thing in a KTAP
compatible format.
nolibc doesn't have a strerror() and adding the table of strings required
doesn't seem like a good fit for what it's trying to do so when we're using
that only print the errno.
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
-rw-r--r-- | tools/testing/selftests/kselftest.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h index e8eecbc83a60..ad7b97e16f37 100644 --- a/tools/testing/selftests/kselftest.h +++ b/tools/testing/selftests/kselftest.h @@ -48,6 +48,7 @@ #include <stdlib.h> #include <unistd.h> #include <stdarg.h> +#include <string.h> #include <stdio.h> #include <sys/utsname.h> #endif @@ -156,6 +157,19 @@ static inline void ksft_print_msg(const char *msg, ...) va_end(args); } +static inline void ksft_perror(const char *msg) +{ +#ifndef NOLIBC + ksft_print_msg("%s: %s (%d)\n", msg, strerror(errno), errno); +#else + /* + * nolibc doesn't provide strerror() and it seems + * inappropriate to add one, just print the errno. + */ + ksft_print_msg("%s: %d)\n", msg, errno); +#endif +} + static inline void ksft_test_result_pass(const char *msg, ...) { int saved_errno = errno; |