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[185.136.65.228]) by gmr-mx.google.com with ESMTPS id 98e67ed59e1d1-2db6c1a8676si423512a91.0.2024.09.13.08.16.57 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Fri, 13 Sep 2024 08:16:57 -0700 (PDT) Received-SPF: pass (google.com: domain of fm-1321639-20240913151655fb9b2b5143e662e67a-7vglud@rts-flowmailer.siemens.com designates 185.136.65.228 as permitted sender) client-ip=185.136.65.228; Received: by mta-65-228.siemens.flowmailer.net with ESMTPSA id 20240913151655fb9b2b5143e662e67a for ; Fri, 13 Sep 2024 17:16:55 +0200 X-Patchwork-Original-From: "'Felix Moessbauer' via isar-users" From: "MOESSBAUER, Felix" To: isar-users@googlegroups.com Cc: jan.kiszka@siemens.com, Felix Moessbauer Subject: [PATCH 1/2] make kernel module build reproducible Date: Fri, 13 Sep 2024 17:16:41 +0200 Message-Id: <20240913151642.374093-1-felix.moessbauer@siemens.com> MIME-Version: 1.0 X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-1321639:519-21489:flowmailer X-Original-Sender: felix.moessbauer@siemens.com X-Original-Authentication-Results: gmr-mx.google.com; dkim=pass header.i=@siemens.com header.s=fm1 header.b=BVUJhlrE; spf=pass (google.com: domain of fm-1321639-20240913151655fb9b2b5143e662e67a-7vglud@rts-flowmailer.siemens.com designates 185.136.65.228 as permitted sender) smtp.mailfrom=fm-1321639-20240913151655fb9b2b5143e662e67a-7VGLuD@rts-flowmailer.siemens.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=siemens.com X-Original-From: Felix Moessbauer Reply-To: Felix Moessbauer Precedence: list Mailing-list: list isar-users@googlegroups.com; contact isar-users+owners@googlegroups.com List-ID: X-Spam-Checked-In-Group: isar-users@googlegroups.com X-Google-Group-Id: 914930254986 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-Spam-Status: No, score=-4.9 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,RCVD_IN_RP_CERTIFIED, RCVD_IN_RP_RNBL,RCVD_IN_RP_SAFE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on shymkent.ilbers.de X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= The debug information of kernel modules contain absolute file paths into the builder schroot. To fix this, we inject a debug-prefix-map, similar to how it is already done for the kernel build. While doing that, we also enable the user to inject other KCFLAGS and KAFLAGS as well. Signed-off-by: Felix Moessbauer --- meta/recipes-kernel/linux-module/files/debian/rules.tmpl | 2 +- meta/recipes-kernel/linux-module/module.inc | 6 ++++++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/meta/recipes-kernel/linux-module/files/debian/rules.tmpl b/meta/recipes-kernel/linux-module/files/debian/rules.tmpl index bc4e09cb..7511a17d 100755 --- a/meta/recipes-kernel/linux-module/files/debian/rules.tmpl +++ b/meta/recipes-kernel/linux-module/files/debian/rules.tmpl @@ -49,7 +49,7 @@ override_dh_auto_clean: $(MAKE) -C $(KDIR) M=${MODULE_DIR} clean override_dh_auto_build: - $(MAKE) -C $(KDIR) M=${MODULE_DIR} $(PARALLEL_MAKE) modules + $(MAKE) -C $(KDIR) M=${MODULE_DIR} $(PARALLEL_MAKE) KCFLAGS="${KCFLAGS}" KAFLAGS="${KAFLAGS}" modules ifneq ($(filter pkg.sign,$(DEB_BUILD_PROFILES)),) find . -name "*.ko" -print -exec $(KDIR)/scripts/sign-file ${SIGNATURE_HASHFN} ${SIGNATURE_KEYFILE} ${SIGNATURE_CERTFILE} {} \; endif diff --git a/meta/recipes-kernel/linux-module/module.inc b/meta/recipes-kernel/linux-module/module.inc index 229e6a5c..344dc50f 100644 --- a/meta/recipes-kernel/linux-module/module.inc +++ b/meta/recipes-kernel/linux-module/module.inc @@ -48,6 +48,8 @@ TEMPLATE_VARS += " \ KERNEL_TYPE \ KERNEL_IMAGE_PKG \ KERNEL_HEADERS_PKG \ + KCFLAGS \ + KAFLAGS \ MODULE_DIR \ DEBIAN_BUILD_DEPENDS \ SIGNATURE_KEYFILE \ @@ -55,6 +57,10 @@ TEMPLATE_VARS += " \ SIGNATURE_HASHFN \ PN" +# Add custom cflags to the kernel build +KCFLAGS ?= "-fdebug-prefix-map=${CURDIR}=. -fmacro-prefix-map=${CURDIR}=." +KAFLAGS ?= "-fdebug-prefix-map=${CURDIR}=." + do_prepare_build() { rm -rf ${S}/debian cp -r ${WORKDIR}/debian ${S}/