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 X-Spam-Level: X-Spam-Status: No, score=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B71BC433E6 for ; Tue, 12 Jan 2021 15:48:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4F8CE23134 for ; Tue, 12 Jan 2021 15:48:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405100AbhALPro (ORCPT ); Tue, 12 Jan 2021 10:47:44 -0500 Received: from mail.kernel.org ([198.145.29.99]:44854 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391909AbhALPrn (ORCPT ); Tue, 12 Jan 2021 10:47:43 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 50F622312F; Tue, 12 Jan 2021 15:47:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1610466423; bh=q+Pofp8jRp2xcjOfvDsfHdXfGkS6TiOxj2EkcvZcE/Q=; h=From:To:Cc:Subject:Date:From; b=nB+GV/Ao2FJGa2/qsd2aioGTA73tsL+Fy/ISjrGuCxwlH3VH2Dptb5oF/HLziXRZv 0A/cNKn9jDxot8d7A1iO9c5LtFQ2Wk5Fy57NM4dDhtMqG8L7c5hLrdXeYk0mSIr4GG F6xbxhfqw3a+mKXEZjQTMEcwZM+Fug8Mpus8ZWb3eVd1SQ6XgUEpIoHwBkjUAvbpMr hCaQMpC5KNeTRkGN6AqE9X+EvnCRaGhCiIwdZH4c3osj8yWXfGrrzpcu7p40dPo3n1 2ZQqpWsI6Q5XNMJ7Os++Lt4j5/craDsVmER3KFWEqsu098FZKF+qhMoaP/xBvutnyY sIgydXBZWPbgw== From: Arnd Bergmann To: Russell King , Nathan Chancellor , Nick Desaulniers , Kees Cook Cc: Arnd Bergmann , Catalin Marinas , Vladimir Murzin , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com Subject: [PATCH] ARM: fix link warning with XIP + frame-pointer Date: Tue, 12 Jan 2021 16:46:40 +0100 Message-Id: <20210112154658.850192-1-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arnd Bergmann When frame pointers are used instead of the ARM unwinder, and the kernel is built using clang with an external assembler and CONFIG_XIP_KERNEL, every file produces two warnings like: arm-linux-gnueabi-ld: warning: orphan section `.ARM.extab' from `net/mac802154/util.o' being placed in section `.ARM.extab' arm-linux-gnueabi-ld: warning: orphan section `.ARM.exidx' from `net/mac802154/util.o' being placed in section `.ARM.exidx' The same fix was already merged for the normal (non-XIP) linker script, with a longer description. Fixes: c39866f268f8 ("arm/build: Always handle .ARM.exidx and .ARM.extab sections") Signed-off-by: Arnd Bergmann --- arch/arm/kernel/vmlinux-xip.lds.S | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/kernel/vmlinux-xip.lds.S b/arch/arm/kernel/vmlinux-xip.lds.S index 4d0b0cd9222e..ddb70c65d525 100644 --- a/arch/arm/kernel/vmlinux-xip.lds.S +++ b/arch/arm/kernel/vmlinux-xip.lds.S @@ -43,6 +43,10 @@ SECTIONS ARM_DISCARD *(.alt.smp.init) *(.pv_table) +#ifndef CONFIG_ARM_UNWIND + *(.ARM.exidx) *(.ARM.exidx.*) + *(.ARM.extab) *(.ARM.extab.*) +#endif } . = XIP_VIRT_ADDR(CONFIG_XIP_PHYS_ADDR); -- 2.29.2