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[85.214.156.166]) by gmr-mx.google.com with ESMTPS id 5b1f17b1804b1-49fe19aa3b9si100685e9.2.2026.09.23.05.03.56 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Wed, 23 Sep 2026 05:03:56 -0700 (PDT) Received-SPF: pass (google.com: domain of alaur@ilbers.de designates 85.214.156.166 as permitted sender) client-ip=85.214.156.166; Received: from ws-310.promwad.corp (62.122.174.6.serverel.net [62.122.174.6] (may be forged)) (authenticated bits=0) by shymkent.ilbers.de (8.15.2/8.15.2/Debian-8+deb9u1) with ESMTPA id 68NC3kGv013004 for ; Wed, 23 Sep 2026 14:03:55 +0200 From: Aleksey Laurynovich To: isar-users@googlegroups.com Subject: [PATCH] fix: Add toolchain fixes to linux-cip 4.4 kernel on Noble Date: Wed, 23 Sep 2026 14:03:30 +0200 Message-ID: <20260923120346.3256438-1-alaur@ilbers.de> X-Mailer: git-send-email 2.43.0 MIME-Version: 1.0 X-Spam-Status: No, score=-4.6 required=5.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_BLOCKED,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-Original-Sender: alaur@ilbers.de X-Original-Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of alaur@ilbers.de designates 85.214.156.166 as permitted sender) smtp.mailfrom=alaur@ilbers.de Precedence: list Mailing-list: list isar-users@googlegroups.com; contact isar-users+owners@googlegroups.com List-ID: X-Google-Group-Id: 914930254986 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= Older kernel (4.4.x) has three toolchain issues on Ubuntu Noble: - dtc yylloc multiple definition (fixed by HOSTCFLAGS+=-fcommon) - ld rejects -Wl,-Bsymbolic-functions (fixed by clearing LDFLAGS) - arm64 proc.S uses deprecated .section syntax rejected by binutils 2.42 (fixed by patching to use modern 'ax' flags) The issue can be reproduced with the command: $ bitbake mc:qemuarm64-noble:linux-cip-arm64 Signed-off-by: Aleksey Laurynovich --- ...rm64-proc.S-fix-binutils-2.42-section-syntax.patch | 11 +++++++++++ .../recipes-kernel/linux/linux-cip_4.4.166-cip29.bb | 6 ++++++ 2 files changed, 17 insertions(+) create mode 100644 meta-isar/recipes-kernel/linux/files/0001-arm64-proc.S-fix-binutils-2.42-section-syntax.patch diff --git a/meta-isar/recipes-kernel/linux/files/0001-arm64-proc.S-fix-binutils-2.42-section-syntax.patch b/meta-isar/recipes-kernel/linux/files/0001-arm64-proc.S-fix-binutils-2.42-section-syntax.patch new file mode 100644 index 00000000..f464ac40 --- /dev/null +++ b/meta-isar/recipes-kernel/linux/files/0001-arm64-proc.S-fix-binutils-2.42-section-syntax.patch @@ -0,0 +1,11 @@ +--- a/arch/arm64/mm/proc.S ++++ b/arch/arm64/mm/proc.S +@@ -152,7 +152,7 @@ + alternative_endif + ENDPROC(cpu_do_switch_mm) + +- .section ".text.init", #alloc, #execinstr ++ .section ".text.init", "ax" + + /* + * __cpu_setup diff --git a/meta-isar/recipes-kernel/linux/linux-cip_4.4.166-cip29.bb b/meta-isar/recipes-kernel/linux/linux-cip_4.4.166-cip29.bb index e2e51304..4b606dee 100644 --- a/meta-isar/recipes-kernel/linux/linux-cip_4.4.166-cip29.bb +++ b/meta-isar/recipes-kernel/linux/linux-cip_4.4.166-cip29.bb @@ -9,8 +9,14 @@ PN .= "-${DISTRO_ARCH}" inherit linux-kernel +# Older kernel dtc has yylloc multiple definition, fixed by -fcommon +KERNEL_EXTRA_BUILDARGS += "HOSTCFLAGS+=-fcommon" +# Older kernel passes -Wl,-Bsymbolic-functions to cross-linker which rejects it +KERNEL_EXTRA_BUILDARGS += "LDFLAGS=" + SRC_URI += " \ git://git.kernel.org/pub/scm/linux/kernel/git/cip/linux-cip.git;protocol=https;branch=linux-4.4.y-cip;destsuffix=${P} \ + file://0001-arm64-proc.S-fix-binutils-2.42-section-syntax.patch \ " SRCREV = "af3adf9f9c633ac0e1d68487d7fad22285dda8a3"