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[35.238.199.243]) by smtp.gmail.com with ESMTPSA id v10sm11522730ilj.40.2020.07.06.14.03.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Jul 2020 14:03:53 -0700 (PDT) From: Uriel Guajardo To: brendanhiggins@google.com, catalin.marinas@arm.com, akpm@linux-foundtation.org Cc: changbin.du@intel.com, rdunlap@infradead.org, masahiroy@kernel.org, 0x7f454c46@gmail.com, urielguajardo@google.com, krzk@kernel.org, kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com, linux-mm@kvack.org Subject: [PATCH 1/2] kunit: support kunit failures from debugging tools Date: Mon, 6 Jul 2020 21:03:26 +0000 Message-Id: <20200706210327.3313498-2-urielguajardojr@gmail.com> X-Mailer: git-send-email 2.27.0.212.ge8ba1cc988-goog In-Reply-To: <20200706210327.3313498-1-urielguajardojr@gmail.com> References: <20200706210327.3313498-1-urielguajardojr@gmail.com> MIME-Version: 1.0 X-Rspamd-Queue-Id: 92D7F20002CBBDA5 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Uriel Guajardo Dynamic analyis tools can now fail the currently running kunit test case by calling kunit_fail_current_test(). A new header file is created so that no circular dependencies are created with external tools. This patch requires "kunit: KASAN integration", which places the currently running kunit test in task_struct. [1] [1] https://lore.kernel.org/linux-kselftest/20200606040349.246780-2-david= gow@google.com Signed-off-by: Uriel Guajardo --- include/kunit/test-bug.h | 15 +++++++++++++++ include/kunit/test.h | 1 + lib/kunit/test.c | 10 ++++++---- 3 files changed, 22 insertions(+), 4 deletions(-) create mode 100644 include/kunit/test-bug.h diff --git a/include/kunit/test-bug.h b/include/kunit/test-bug.h new file mode 100644 index 000000000000..69ec3dd91c52 --- /dev/null +++ b/include/kunit/test-bug.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Base unit test (KUnit) API. + * + * Copyright (C) 2020, Google LLC. + * Author: Uriel Guajardo + */ + +#if IS_ENABLED(CONFIG_KUNIT) +extern void kunit_fail_current_test(void); +#else +static inline void kunit_fail_current_test(void) +{ +} +#endif diff --git a/include/kunit/test.h b/include/kunit/test.h index 1dc3d118f64b..c46715c739b5 100644 --- a/include/kunit/test.h +++ b/include/kunit/test.h @@ -11,6 +11,7 @@ =20 #include #include +#include #include #include #include diff --git a/lib/kunit/test.c b/lib/kunit/test.c index ef3bfb9fae48..8580ed831a8f 100644 --- a/lib/kunit/test.c +++ b/lib/kunit/test.c @@ -16,6 +16,12 @@ #include "string-stream.h" #include "try-catch-impl.h" =20 +void kunit_fail_current_test(void) +{ + if (current->kunit_test) + kunit_set_failure(current->kunit_test); +} + static void kunit_print_tap_version(void) { static bool kunit_has_printed_tap_version; @@ -284,9 +290,7 @@ static void kunit_try_run_case(void *data) struct kunit_suite *suite =3D ctx->suite; struct kunit_case *test_case =3D ctx->test_case; =20 -#if (IS_ENABLED(CONFIG_KASAN) && IS_ENABLED(CONFIG_KUNIT)) current->kunit_test =3D test; -#endif /* IS_ENABLED(CONFIG_KASAN) && IS_ENABLED(CONFIG_KUNIT) */ =20 /* * kunit_run_case_internal may encounter a fatal error; if it does, @@ -603,9 +607,7 @@ void kunit_cleanup(struct kunit *test) spin_unlock(&test->lock); kunit_remove_resource(test, res); } -#if (IS_ENABLED(CONFIG_KASAN) && IS_ENABLED(CONFIG_KUNIT)) current->kunit_test =3D NULL; -#endif /* IS_ENABLED(CONFIG_KASAN) && IS_ENABLED(CONFIG_KUNIT)*/ } EXPORT_SYMBOL_GPL(kunit_cleanup); =20 --=20 2.27.0.212.ge8ba1cc988-goog