Rather than providing headers for inclusion which replace any offered by the system nolibc is provided in the form of a header which should be added to the build via the compiler command line. In order to build with nolibc we need to not include the standard C headers, especially not stdio.h where the definitions of stdout, stdin and stderr will actively conflict with nolibc.
Add an include guard which suppresses the inclusion of the standard headers when building with nolibc, allowing us to build tests using the nolibc headers. This allows us to avoid open coding of KTAP output for selftests that need to use nolibc in order to test interfaces that are controlled by libc.
Signed-off-by: Mark Brown broonie@kernel.org --- tools/testing/selftests/kselftest.h | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/tools/testing/selftests/kselftest.h b/tools/testing/selftests/kselftest.h index 33a0dbd26bd3..829be379545a 100644 --- a/tools/testing/selftests/kselftest.h +++ b/tools/testing/selftests/kselftest.h @@ -43,11 +43,13 @@ #ifndef __KSELFTEST_H #define __KSELFTEST_H
+#ifndef NOLIBC #include <errno.h> #include <stdlib.h> #include <unistd.h> #include <stdarg.h> #include <stdio.h> +#endif
#ifndef ARRAY_SIZE #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))