From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 80B4737F8A7; Mon, 4 May 2026 09:33:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777887222; cv=none; b=bgc4b3xK7qLRoakmMqTpGuyE24ip6I4huXef4THXNZpdGjCLJkeEfyLlBqa7fS/U7tzMGQ8NJcho3N/YUHfVq2UFRUXHPEZ4LNg3+RzzVctLU9SDvD0DSi731r5ggttLvIkVZRzVQcR2xB3ugpfwTNXUMGkc6Aj9WvJBCPsHtr4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777887222; c=relaxed/simple; bh=X2NN2sojneity7IMySlccOZ5k53NgDydZFJmaouxqdA=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=P0RZT4drm+YX2uU+ICnlmIEH1eoHNbPR5V9EnvgCF0+7oYHkwU09gap42EnqqWpLRfAdjahaJMQ10cd1ie18poixzK85mqJ5MQcLsyspa+PJzKsz6T5ITPay5IgAMcP6HGu6UFJmycTzVjms8IaBBsh2520dXg9Mjya5eO3fKcw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=NC+00Yvn; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=YjAiuNtu; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="NC+00Yvn"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="YjAiuNtu" From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1777887219; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ft5tjVlJemnVxdKrQOWR07GWUrenfDbo6YKiLlRQjYg=; b=NC+00YvnEebssrgHehzlz8bX7d+X1xp33wCP3F4/hOYN8p9eHYVnXdW9p4aP28p0zVsJt9 KeKHZP/hTwB7uHL5RRZhma/aQBpVrdIOJh1JTyz/NAxYkUX/wdjJdZYhI8xbOZJHmUdQa6 NOimy2qPsefv3aMws9u7uUwsUXTWN0MagCH2NggrHygMmRa+2AdYfvPKVvUA88IDNb1aQy Z4UF9aa9F9JaaLJtPRjudkod2k2pqxoZu9KITzPUWycNwzWDJTGBV70ah0fZbcD1owZru8 jzHvynCd/7HagURExUsddqcXdodk2pS0roZJu0rMOXpXX/Qce4KiKQ4KwZvlQA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1777887219; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ft5tjVlJemnVxdKrQOWR07GWUrenfDbo6YKiLlRQjYg=; b=YjAiuNtuewrsNsYXNQ5rzmlr51bXN+FcRHyyKsBkqi8MmLFxxEc/o7iKpcKU16CH1ILplT wmFhEZ+1YxCEjKCA== Date: Mon, 04 May 2026 11:33:25 +0200 Subject: [PATCH v6 09/11] kunit: uapi: Add example for UAPI tests Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260504-kunit-kselftests-v6-9-712d3d526d97@linutronix.de> References: <20260504-kunit-kselftests-v6-0-712d3d526d97@linutronix.de> In-Reply-To: <20260504-kunit-kselftests-v6-0-712d3d526d97@linutronix.de> To: Nathan Chancellor , Andrew Morton , Willy Tarreau , =?utf-8?q?Thomas_Wei=C3=9Fschuh?= , Brendan Higgins , Shuah Khan , Jonathan Corbet , Nicolas Schier , Kees Cook , Alexander Viro , Christian Brauner , Jan Kara , Christoph Hellwig , Luis Chamberlain , David Gow , Rae Moar Cc: linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com, linux-doc@vger.kernel.org, workflows@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= , Christophe Leroy , Nicolas Schier X-Developer-Signature: v=1; a=ed25519-sha256; t=1777887211; l=3560; i=thomas.weissschuh@linutronix.de; s=20240209; h=from:subject:message-id; bh=X2NN2sojneity7IMySlccOZ5k53NgDydZFJmaouxqdA=; b=d+F6BfdlzPGVKpRtvndevjxQUwuA2kdiKjOKE+xclSjrFppN4PZlwNeh8L5VMEutjdqDzgLmY LaFBlIeV+GPAc2hVsx4yFUiV9oZx8OMoKI//hL7q4tmqR6l1KjH9PQg X-Developer-Key: i=thomas.weissschuh@linutronix.de; a=ed25519; pk=pfvxvpFUDJV2h2nY0FidLUml22uGLSjByFbM6aqQQws= Extend the example to show how to run a userspace executable. Signed-off-by: Thomas Weißschuh Reviewed-by: David Gow --- MAINTAINERS | 1 + lib/kunit/Makefile | 10 ++++++++++ lib/kunit/kunit-example-test.c | 15 +++++++++++++++ lib/kunit/kunit-example-uapi.c | 22 ++++++++++++++++++++++ 4 files changed, 48 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index e29ca56f7334..b7358d89df70 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -14399,6 +14399,7 @@ KUNIT UAPI TESTING FRAMEWORK (in addition to KERNEL UNIT TESTING FRAMEWORK) M: Thomas Weißschuh S: Maintained F: include/kunit/uapi.h +F: lib/kunit/kunit-example-uapi.c F: lib/kunit/kunit-uapi.c KVM PARAVIRT (KVM/paravirt) diff --git a/lib/kunit/Makefile b/lib/kunit/Makefile index 6059621a2d32..2434470e9985 100644 --- a/lib/kunit/Makefile +++ b/lib/kunit/Makefile @@ -1,3 +1,5 @@ +include $(srctree)/init/Makefile.nolibc + obj-$(CONFIG_KUNIT) += kunit.o kunit-objs += test.o \ @@ -31,3 +33,11 @@ obj-$(CONFIG_KUNIT_TEST) += assert_test.o endif obj-$(CONFIG_KUNIT_EXAMPLE_TEST) += kunit-example-test.o + +userprogs += kunit-example-uapi +kunit-example-uapi-userccflags := -static $(NOLIBC_USERCFLAGS) + +ifdef CONFIG_KUNIT_UAPI +CFLAGS_kunit-example-test.o := -Wa,-I$(obj) +$(obj)/kunit-example-test.o: $(obj)/kunit-example-uapi +endif diff --git a/lib/kunit/kunit-example-test.c b/lib/kunit/kunit-example-test.c index 0bae7b7ca0b0..febabc995405 100644 --- a/lib/kunit/kunit-example-test.c +++ b/lib/kunit/kunit-example-test.c @@ -8,6 +8,7 @@ #include #include +#include /* * This is the most fundamental element of KUnit, the test case. A test case @@ -489,6 +490,19 @@ static void example_params_test_with_init_dynamic_arr(struct kunit *test) KUNIT_EXPECT_EQ(test, param_val - param_val, 0); } +/* + * This test shows the usage of UAPI tests. + */ +static void example_uapi_test(struct kunit *test) +{ + KUNIT_UAPI_EMBED_BLOB(kunit_example_uapi, "kunit-example-uapi"); + + if (IS_ENABLED(CONFIG_KUNIT_UAPI)) + kunit_uapi_run_kselftest(test, &kunit_example_uapi); + else + kunit_skip(test, "CONFIG_KUNIT_UAPI is not enabled"); +} + /* * Here we make a list of all the test cases we want to add to the test suite * below. @@ -514,6 +528,7 @@ static struct kunit_case example_test_cases[] = { kunit_array_gen_params, example_param_init_dynamic_arr, example_param_exit_dynamic_arr), KUNIT_CASE_SLOW(example_slow_test), + KUNIT_CASE(example_uapi_test), {} }; diff --git a/lib/kunit/kunit-example-uapi.c b/lib/kunit/kunit-example-uapi.c new file mode 100644 index 000000000000..5875b0d680d4 --- /dev/null +++ b/lib/kunit/kunit-example-uapi.c @@ -0,0 +1,22 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * KUnit Userspace example test. + * + * Copyright (C) 2026, Linutronix GmbH. + * Author: Thomas Weißschuh + * + * This is *userspace* code. + */ + +#include "../../tools/testing/selftests/kselftest.h" + +int main(void) +{ + ksft_print_header(); + ksft_set_plan(4); + ksft_test_result_pass("userspace test 1\n"); + ksft_test_result_pass("userspace test 2\n"); + ksft_test_result_skip("userspace test 3: some reason\n"); + ksft_test_result_pass("userspace test 4\n"); + ksft_finished(); +} -- 2.53.0