// SPDX-License-Identifier: GPL-2.0 #include <linux/reboot.h> #include <kunit/test.h> #include <linux/glob.h> #include <linux/moduleparam.h> /* * These symbols point to the .kunit_test_suites section and are defined in * include/asm-generic/vmlinux.lds.h, and consequently must be extern. */ extern struct kunit_suite * const * const __kunit_suites_start[]; extern struct kunit_suite * const * const __kunit_suites_end[]; #if IS_BUILTIN(CONFIG_KUNIT) static char *filter_glob_param; module_param_named(filter_glob, filter_glob_param, charp, 0); MODULE_PARM_DESC(filter_glob, "Filter which KUnit test suites run at boot-time, e.g. list*"); static char *kunit_shutdown; core_param(kunit_shutdown, kunit_shutdown, charp, 0644); static struct kunit_suite * const * kunit_filter_subsuite(struct kunit_suite * const * const subsuite, const char *filter_glob) { int i, n = 0; struct kunit_suite **filtered; n = 0; for (i = 0; subsuite[i] != NULL; ++i) { if (glob_match(filter_glob, subsuite[i]->name)) ++n; } if (n == 0) return NULL; filtered = kmalloc_array(n + 1, sizeof(*filtered), GFP_KERNEL); if (!filtered) return NULL; n = 0; for (i = 0; subsuite[i] != NULL; ++i) { if (glob_match(filter_glob, subsuite[i]->name)) filtered[n++] = subsuite[i]; } filtered[n] = NULL; return filtered; } struct suite_set { struct kunit_suite * const * const *start; struct kunit_suite * const * const *end; }; static struct suite_set kunit_filter_suites(const struct suite_set *suite_set, const char *filter_glob) { int i; struct kunit_suite * const **copy, * const *filtered_subsuite; struct suite_set filtered; const size_t max = suite_set->end - suite_set->start; copy = kmalloc_array(max, sizeof(*filtered.start), GFP_KERNEL); filtered.start = copy; if (!copy) { /* won't be able to run anything, return an empty set */ filtered.end = copy; return filtered; } for (i = 0; i < max; ++i) { filtered_subsuite = kunit_filter_subsuite(suite_set->start[i], filter_glob); if (filtered_subsuite) *copy++ = filtered_subsuite; } filtered.end = copy; return filtered; } static void kunit_handle_shutdown(void) { if (!kunit_shutdown) return; if (!strcmp(kunit_shutdown, "poweroff")) kernel_power_off(); else if (!strcmp(kunit_shutdown, "halt")) kernel_halt(); else if (!strcmp(kunit_shutdown, "reboot")) kernel_restart(NULL); } static void kunit_print_tap_header(struct suite_set *suite_set) { struct kunit_suite * const * const *suites, * const *subsuite; int num_of_suites = 0; for (suites = suite_set->start; suites < suite_set->end; suites++) for (subsuite = *suites; *subsuite != NULL; subsuite++) num_of_suites++; pr_info("TAP version 14\n"); pr_info("1..%d\n", num_of_suites); } int kunit_run_all_tests(void) { struct kunit_suite * const * const *suites; struct suite_set suite_set = { .start = __kunit_suites_start, .end = __kunit_suites_end, }; if (filter_glob_param) suite_set = kunit_filter_suites(&suite_set, filter_glob_param); kunit_print_tap_header(&suite_set); for (suites = suite_set.start; suites < suite_set.end; suites++) __kunit_test_suites_init(*suites); if (filter_glob_param) { /* a copy was made of each array */ for (suites = suite_set.start; suites < suite_set.end; suites++) kfree(*suites); kfree(suite_set.start); } kunit_handle_shutdown(); return 0; } #if IS_BUILTIN(CONFIG_KUNIT_TEST) #include "executor_test.c" #endif #endif /* IS_BUILTIN(CONFIG_KUNIT) */