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-rw-r--r--lib/kunit/Makefile3
-rw-r--r--lib/kunit/hooks-impl.h27
-rw-r--r--lib/kunit/hooks.c21
-rw-r--r--lib/kunit/test.c15
4 files changed, 58 insertions, 8 deletions
diff --git a/lib/kunit/Makefile b/lib/kunit/Makefile
index 29aff6562b42..deeb46cc879b 100644
--- a/lib/kunit/Makefile
+++ b/lib/kunit/Makefile
@@ -11,6 +11,9 @@ ifeq ($(CONFIG_KUNIT_DEBUGFS),y)
kunit-objs += debugfs.o
endif
+# KUnit 'hooks' are built-in even when KUnit is built as a module.
+lib-y += hooks.o
+
obj-$(CONFIG_KUNIT_TEST) += kunit-test.o
# string-stream-test compiles built-in only.
diff --git a/lib/kunit/hooks-impl.h b/lib/kunit/hooks-impl.h
new file mode 100644
index 000000000000..d911f40f76db
--- /dev/null
+++ b/lib/kunit/hooks-impl.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Declarations for hook implementations.
+ *
+ * These will be set as the function pointers in struct kunit_hook_table,
+ * found in include/kunit/test-bug.h.
+ *
+ * Copyright (C) 2023, Google LLC.
+ * Author: David Gow <davidgow@google.com>
+ */
+
+#ifndef _KUNIT_HOOKS_IMPL_H
+#define _KUNIT_HOOKS_IMPL_H
+
+#include <kunit/test-bug.h>
+
+/* List of declarations. */
+void __kunit_fail_current_test_impl(const char *file, int line, const char *fmt, ...);
+
+/* Code to set all of the function pointers. */
+static inline void kunit_install_hooks(void)
+{
+ /* Install the KUnit hook functions. */
+ kunit_hooks.fail_current_test = __kunit_fail_current_test_impl;
+}
+
+#endif /* _KUNIT_HOOKS_IMPL_H */
diff --git a/lib/kunit/hooks.c b/lib/kunit/hooks.c
new file mode 100644
index 000000000000..365d98d4953c
--- /dev/null
+++ b/lib/kunit/hooks.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * KUnit 'Hooks' implementation.
+ *
+ * This file contains code / structures which should be built-in even when
+ * KUnit itself is built as a module.
+ *
+ * Copyright (C) 2022, Google LLC.
+ * Author: David Gow <davidgow@google.com>
+ */
+
+
+#include <kunit/test-bug.h>
+
+DEFINE_STATIC_KEY_FALSE(kunit_running);
+EXPORT_SYMBOL(kunit_running);
+
+/* Function pointers for hooks. */
+struct kunit_hooks_table kunit_hooks;
+EXPORT_SYMBOL(kunit_hooks);
+
diff --git a/lib/kunit/test.c b/lib/kunit/test.c
index 890ba5b3a981..51cae59d8aae 100644
--- a/lib/kunit/test.c
+++ b/lib/kunit/test.c
@@ -17,17 +17,14 @@
#include <linux/sched.h>
#include "debugfs.h"
+#include "hooks-impl.h"
#include "string-stream.h"
#include "try-catch-impl.h"
-DEFINE_STATIC_KEY_FALSE(kunit_running);
-EXPORT_SYMBOL_GPL(kunit_running);
-
-#if IS_BUILTIN(CONFIG_KUNIT)
/*
- * Fail the current test and print an error message to the log.
+ * Hook to fail the current test and print an error message to the log.
*/
-void __kunit_fail_current_test(const char *file, int line, const char *fmt, ...)
+void __kunit_fail_current_test_impl(const char *file, int line, const char *fmt, ...)
{
va_list args;
int len;
@@ -54,8 +51,6 @@ void __kunit_fail_current_test(const char *file, int line, const char *fmt, ...)
kunit_err(current->kunit_test, "%s:%d: %s", file, line, buffer);
kunit_kfree(current->kunit_test, buffer);
}
-EXPORT_SYMBOL_GPL(__kunit_fail_current_test);
-#endif
/*
* Enable KUnit tests to run.
@@ -778,6 +773,9 @@ EXPORT_SYMBOL_GPL(kunit_cleanup);
static int __init kunit_init(void)
{
+ /* Install the KUnit hook functions. */
+ kunit_install_hooks();
+
kunit_debugfs_init();
#ifdef CONFIG_MODULES
return register_module_notifier(&kunit_mod_nb);
@@ -789,6 +787,7 @@ late_initcall(kunit_init);
static void __exit kunit_exit(void)
{
+ memset(&kunit_hooks, 0, sizeof(kunit_hooks));
#ifdef CONFIG_MODULES
unregister_module_notifier(&kunit_mod_nb);
#endif