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=-9.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 2CA0FECDE49 for ; Mon, 22 Oct 2018 10:20:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E86892088F for ; Mon, 22 Oct 2018 10:20:16 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="kHfzBRkp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E86892088F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728954AbeJVSiJ (ORCPT ); Mon, 22 Oct 2018 14:38:09 -0400 Received: from mail.kernel.org ([198.145.29.99]:49080 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728448AbeJVSiI (ORCPT ); Mon, 22 Oct 2018 14:38:08 -0400 Received: from sasha-vm.mshome.net (unknown [167.98.65.38]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 5A1E720890; Mon, 22 Oct 2018 10:20:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1540203613; bh=NRimIiSNjP5AwnX94Z59lY2o2MkPlkwBMk2vgEdCQlY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kHfzBRkp2jIUEI0gsaZNbdqD5jjwOcE18OsLhQkkdXIp3c+h7wHNwytXmWWKt8QyZ DOx1WhWERFUiZQ5JyZvZe/KJUl4RUkPGDKl+goxq0DVho5NYxXe1KBLdTjXJMPu5Pg qFfD5xs1qHHHoa/g5ocTVlAFwZl+9PIzs7nQfXa4= From: Sasha Levin To: stable@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Peter Oberparleiter , Stephen Rothwell , Sasha Levin Subject: [PATCH AUTOSEL 4.18 24/27] vmlinux.lds.h: Fix incomplete .text.exit discards Date: Mon, 22 Oct 2018 06:19:21 -0400 Message-Id: <20181022101924.40531-24-sashal@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20181022101924.40531-1-sashal@kernel.org> References: <20181022101924.40531-1-sashal@kernel.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Peter Oberparleiter [ Upstream commit 8dcf86caa1e3daf4a6ccf38e97f4f752b411f829 ] Enabling CONFIG_GCOV_PROFILE_ALL=y causes linker errors on ARM: `.text.exit' referenced in section `.ARM.exidx.text.exit': defined in discarded section `.text.exit' `.text.exit' referenced in section `.fini_array.00100': defined in discarded section `.text.exit' And related errors on NDS32: `.text.exit' referenced in section `.dtors.65435': defined in discarded section `.text.exit' The gcov compiler flags cause certain compiler versions to generate additional destructor-related sections that are not yet handled by the linker script, resulting in references between discarded and non-discarded sections. Since destructors are not used in the Linux kernel, fix this by discarding these additional sections. Reported-by: Arnd Bergmann Tested-by: Arnd Bergmann Acked-by: Arnd Bergmann Reported-by: Greentime Hu Tested-by: Masami Hiramatsu Signed-off-by: Peter Oberparleiter Signed-off-by: Stephen Rothwell Signed-off-by: Sasha Levin --- arch/arm/kernel/vmlinux.lds.h | 2 ++ include/asm-generic/vmlinux.lds.h | 4 ++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/vmlinux.lds.h b/arch/arm/kernel/vmlinux.lds.h index ae5fdff18406..8247bc15addc 100644 --- a/arch/arm/kernel/vmlinux.lds.h +++ b/arch/arm/kernel/vmlinux.lds.h @@ -49,6 +49,8 @@ #define ARM_DISCARD \ *(.ARM.exidx.exit.text) \ *(.ARM.extab.exit.text) \ + *(.ARM.exidx.text.exit) \ + *(.ARM.extab.text.exit) \ ARM_CPU_DISCARD(*(.ARM.exidx.cpuexit.text)) \ ARM_CPU_DISCARD(*(.ARM.extab.cpuexit.text)) \ ARM_EXIT_DISCARD(EXIT_TEXT) \ diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index e373e2e10f6a..a11f86014352 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -617,8 +617,8 @@ #define EXIT_DATA \ *(.exit.data .exit.data.*) \ - *(.fini_array) \ - *(.dtors) \ + *(.fini_array .fini_array.*) \ + *(.dtors .dtors.*) \ MEM_DISCARD(exit.data*) \ MEM_DISCARD(exit.rodata*) -- 2.17.1