From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C6470CCD195 for ; Mon, 20 Oct 2025 01:24:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To: Subject:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=v7X4C2h2L+kGvezMXwy4G6A4IXMrDu2HuF/hi0zlsSI=; b=lIGalkJUymigq1+NkwWph/spv7 w4jjP3KUweENy7VfC+6XgVV0etK7gv/NCWcmkx/28DcSqBjgxmt8RULY+ZOj+kKALGgeQ/sOyqwCz /+YT5HNwbf9dADjIB4ZwG8YMlA+GWsQki0e3BWTfuMfiuOvjFQCvIJcDLCtpVLRycksJyQXOe9Eqc DguHCV46wHnSjE3OBU1DPfmPJsHa4qJD/uTqbJDA4C9Rkc8oa50uNbJrMZ+EBgg2TabFrQCYzIvC2 y/p0VW0SMw62fhwc3k0qmEkjrN36KdYvZvNRMpDDKspS3CVu1z5hDjx07OEgLaI+ygZ5k02d63RQk 3c/wEeEw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vAedN-0000000Bcdi-1FSp; Mon, 20 Oct 2025 01:24:25 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vAedJ-0000000Bccw-0QP1; Mon, 20 Oct 2025 01:24:21 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:Content-Type: In-Reply-To:MIME-Version:Date:Message-ID:From:References:Cc:To:Subject:Sender :Reply-To:Content-ID:Content-Description; bh=v7X4C2h2L+kGvezMXwy4G6A4IXMrDu2HuF/hi0zlsSI=; b=iAB05hyz20YbLiT5UtEbBAKdRh cy+zWr2u3pXI+xrtyhE/BHjD/wZury6z+a9tv+WthOpzs0hZa2dwvhe6tqnuCuoGIon73ksw9c3Xh /ENopiRDaK6UeSe2h/x9QY/5JdKaXW/lbUb0wpJ6lzfoKGVxFh+yF8Uzr9U9vWRYtCDEc2Si69vI+ FYZ/EbyGceWeKboXfA2pTSASoT65h3OS1JV6gIXR98JVk9qynHHyGynj+2z+qXKlvqyiaw+w9TKXb O0iCSr0JGdG0cPkH+cdF4iuUlTy0wnYoHXR+B4szK6FeCx7gtVNQUbSIJa6s34TlTwjorYgNJphWF Ii3ygGuA==; Received: from mail.loongson.cn ([114.242.206.163]) by casper.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vAedD-0000000AlBm-0p1y; Mon, 20 Oct 2025 01:24:19 +0000 Received: from loongson.cn (unknown [113.200.148.30]) by gateway (Coremail) with SMTP id _____8CxHvAyj_Vo0BkYAA--.51782S3; Mon, 20 Oct 2025 09:24:02 +0800 (CST) Received: from [10.130.10.66] (unknown [113.200.148.30]) by front1 (Coremail) with SMTP id qMiowJCxdOQyj_Vo+iH3AA--.20492S3; Mon, 20 Oct 2025 09:24:02 +0800 (CST) Subject: Re: [PATCH v2] efistub: Only link libstub to final vmlinux To: Josh Poimboeuf , Ard Biesheuvel Cc: Huacai Chen , loongarch@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, linux-efi@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org References: From: Tiezhu Yang Message-ID: Date: Mon, 20 Oct 2025 09:24:01 +0800 User-Agent: Mozilla/5.0 (X11; Linux loongarch64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit X-CM-TRANSID: qMiowJCxdOQyj_Vo+iH3AA--.20492S3 X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29K BjDU0xBIdaVrnRJUUUv2b4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26c xKx2IYs7xG6rWj6s0DM7CIcVAFz4kK6r106r15M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vE j48ve4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxV AFwI0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW8Jr0_Cr1UM28EF7xvwVC2z280aVCY1x02 67AKxVW8Jr0_Cr1UM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2x26I8E6x ACxx1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r1j6r18McIj6I8E 87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IY64vIr41lc7I2V7IY0V AS07AlzVAYIcxG8wCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s02 6c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw 0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvE c7CjxVAFwI0_Jr0_Gr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14 v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Jr0_GrUvcSsGvfC2KfnxnUUI43ZEXa7I U8czVUUUUUU== X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251020_022416_969343_B10714FA X-CRM114-Status: UNSURE ( 7.67 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Josh, Ard and Huacai, On 2025/10/18 上午1:05, Josh Poimboeuf wrote: ... > But IIUC, the libstub code runs *very* early, and wouldn't show up in a > stack trace anyway, because there are no traces of it on the stack once > it branches to head.S code (which doesn't save the link register). Thanks for your discussions. Are you OK with this current patch? Or should I update this patch to remove the changes of arm64 and riscv? Or any other suggestions? Thanks, Tiezhu