From: Uriel Guajardo urielguajardo@google.com
Integrates UBSAN into the KUnit testing framework. It fails KUnit tests whenever it reports undefined behavior.
When CONFIG_KUNIT=n, nothing is printed or even formatted, so this has no behavioral impact outside of tests.
kunit_fail_current_test() effectively does a pr_err() as well, so there's some slight duplication, but it also ensures an error is recorded in the debugfs entry for the running KUnit test.
Print a shorter version of the message to make it less spammy.
Co-developed-by: Daniel Latypov dlatypov@google.com Signed-off-by: Uriel Guajardo urielguajardo@google.com Signed-off-by: Daniel Latypov dlatypov@google.com --- lib/ubsan.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/lib/ubsan.c b/lib/ubsan.c index bec38c64d6a6..1ec7d6f1fe63 100644 --- a/lib/ubsan.c +++ b/lib/ubsan.c @@ -14,6 +14,7 @@ #include <linux/types.h> #include <linux/sched.h> #include <linux/uaccess.h> +#include <kunit/test-bug.h>
#include "ubsan.h"
@@ -141,6 +142,8 @@ static void ubsan_prologue(struct source_location *loc, const char *reason) "========================================\n"); pr_err("UBSAN: %s in %s:%d:%d\n", reason, loc->file_name, loc->line & LINE_MASK, loc->column & COLUMN_MASK); + + kunit_fail_current_test("%s in %s", reason, loc->file_name); }
static void ubsan_epilogue(void)