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Tue, 6 Jun 2023 00:17:13 -0700 Received: from rnnvmail201.nvidia.com (10.129.68.8) by rnnvmail205.nvidia.com (10.129.68.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.37; Tue, 6 Jun 2023 00:17:12 -0700 Received: from sandstorm.nvidia.com (10.127.8.14) by mail.nvidia.com (10.129.68.8) with Microsoft SMTP Server id 15.2.986.37 via Frontend Transport; Tue, 6 Jun 2023 00:17:12 -0700 From: John Hubbard To: Andrew Morton CC: David Hildenbrand , Peter Xu , "Shuah Khan" , Nathan Chancellor , , , LKML , John Hubbard , "Muhammad Usama Anjum" , Jonathan Corbet , Subject: [PATCH v3 11/11] selftests: error out if kernel header files are not yet built Date: Tue, 6 Jun 2023 00:16:37 -0700 Message-ID: <20230606071637.267103-12-jhubbard@nvidia.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230606071637.267103-1-jhubbard@nvidia.com> References: <20230606071637.267103-1-jhubbard@nvidia.com> MIME-Version: 1.0 X-NVConfidentiality: public X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT086:EE_|PH7PR12MB5830:EE_ X-MS-Office365-Filtering-Correlation-Id: 3ee2a593-f893-404f-6ef1-08db665e14a8 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Jun 2023 07:17:26.1192 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3ee2a593-f893-404f-6ef1-08db665e14a8 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT086.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH7PR12MB5830 X-Spam-Status: No, score=-1.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO, RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE, T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1767938300473279951?= X-GMAIL-MSGID: =?utf-8?q?1767938300473279951?= As per a discussion with Muhammad Usama Anjum [1], the following is how one is supposed to build selftests: make headers && make -C tools/testing/selftests/mm Change the selftest build system's lib.mk to fail out with a helpful message if that prerequisite "make headers" has not been done yet. [1] https://lore.kernel.org/all/bf910fa5-0c96-3707-cce4-5bcc656b6274@collabora.com/ Cc: David Hildenbrand Cc: Peter Xu Cc: Muhammad Usama Anjum Cc: Jonathan Corbet Cc: linux-doc@vger.kernel.org Signed-off-by: John Hubbard Reviewed-by: Muhammad Usama Anjum Tested-by: Muhammad Usama Anjum --- tools/testing/selftests/lib.mk | 36 +++++++++++++++++++++++++++++++--- 1 file changed, 33 insertions(+), 3 deletions(-) diff --git a/tools/testing/selftests/lib.mk b/tools/testing/selftests/lib.mk index 05400462c779..b8ea03b9a015 100644 --- a/tools/testing/selftests/lib.mk +++ b/tools/testing/selftests/lib.mk @@ -44,10 +44,22 @@ endif selfdir = $(realpath $(dir $(filter %/lib.mk,$(MAKEFILE_LIST)))) top_srcdir = $(selfdir)/../../.. -ifeq ($(KHDR_INCLUDES),) -KHDR_INCLUDES := -isystem $(top_srcdir)/usr/include +ifneq ($(KBUILD_OUTPUT),) + # Make's built-in functions such as $(abspath ...), $(realpath ...) cannot + # expand a shell special character '~'. We use a somewhat tedious way here. + abs_objtree := $(shell cd $(top_srcdir) && mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) && pwd) + $(if $(abs_objtree),, \ + $(error failed to create output directory "$(KBUILD_OUTPUT)")) + # $(realpath ...) resolves symlinks + abs_objtree := $(realpath $(abs_objtree)) + KHDR_DIR := ${abs_objtree}/usr/include +else + abs_srctree := $(shell cd $(top_srcdir) && pwd) + KHDR_DIR := ${abs_srctree}/usr/include endif +KHDR_INCLUDES := -isystem $(KHDR_DIR) + # The following are built by lib.mk common compile rules. # TEST_CUSTOM_PROGS should be used by tests that require # custom build rule and prevent common build rule use. @@ -58,7 +70,25 @@ TEST_GEN_PROGS := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS)) TEST_GEN_PROGS_EXTENDED := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_PROGS_EXTENDED)) TEST_GEN_FILES := $(patsubst %,$(OUTPUT)/%,$(TEST_GEN_FILES)) -all: $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) $(TEST_GEN_FILES) +all: kernel_header_files $(TEST_GEN_PROGS) $(TEST_GEN_PROGS_EXTENDED) \ + $(TEST_GEN_FILES) + +kernel_header_files: + @ls $(KHDR_DIR)/linux/*.h >/dev/null 2>/dev/null; \ + if [ $$? -ne 0 ]; then \ + RED='\033[1;31m'; \ + NOCOLOR='\033[0m'; \ + echo; \ + echo -e "$${RED}error$${NOCOLOR}: missing kernel header files."; \ + echo "Please run this and try again:"; \ + echo; \ + echo " cd $(top_srcdir)"; \ + echo " make headers"; \ + echo; \ + exit 1; \ + fi + +.PHONY: kernel_header_files define RUN_TESTS BASE_DIR="$(selfdir)"; \