From patchwork Wed Jan 22 09:28:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 11345415 X-Patchwork-Delegate: paulburton@kernel.org Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 66235109A for ; Wed, 22 Jan 2020 09:53:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4481324690 for ; Wed, 22 Jan 2020 09:53:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579686821; bh=Q5653fpa3ijpZTYcOhg1IEB8ey1XF1cto6FMBRl6nvo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=odTEx/Sju4csee2EFwd/Dyr2/mPGznZ5LD1skQG04/YT6HrPw/Ege4h36dWVDV/6j BSyXL4ecpSPLUgF6ETPDnYxI2bwnwXPY8qvK9WryJGS0LymZU99FmXQ52HiRfXPPKK mgYfwOeZ4H4TVQbjxYdSitoeX1i68L7Ml7kqe2V8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731131AbgAVJfK (ORCPT ); Wed, 22 Jan 2020 04:35:10 -0500 Received: from mail.kernel.org ([198.145.29.99]:50078 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731123AbgAVJfK (ORCPT ); Wed, 22 Jan 2020 04:35:10 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 077C32071E; Wed, 22 Jan 2020 09:35:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1579685709; bh=Q5653fpa3ijpZTYcOhg1IEB8ey1XF1cto6FMBRl6nvo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=H/fTuUWyy64Y/0xUb3mYdpHc+JPfPM8NTVb9YAysBY3HTMzNSSKuOO7tcZ3K1gVXv 66hhLmd5MD3VApw3579ohGiQkPPiqUOfMSd03Op8mnvdb3grINZUWgS/xhdaNtJh4E 6xe31hGN9/0CNs2oXPd3K1vUEH8PnkTVMgE/hI2M= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jouni Hogander , Paul Burton , Lukas Bulwahn , linux-mips@vger.kernel.org, Sasha Levin Subject: [PATCH 4.9 46/97] MIPS: Prevent link failure with kcov instrumentation Date: Wed, 22 Jan 2020 10:28:50 +0100 Message-Id: <20200122092803.929005812@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200122092755.678349497@linuxfoundation.org> References: <20200122092755.678349497@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: linux-mips-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org From: Jouni Hogander [ Upstream commit a4a3893114a41e365274d5fab5d9ff5acc235ff0 ] __sanitizer_cov_trace_pc() is not linked in and causing link failure if KCOV_INSTRUMENT is enabled. Fix this by disabling instrumentation for compressed image. Signed-off-by: Jouni Hogander Signed-off-by: Paul Burton Cc: Lukas Bulwahn Cc: linux-mips@vger.kernel.org Signed-off-by: Sasha Levin --- arch/mips/boot/compressed/Makefile | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile index ad31c76c7a29..2f77e250b91d 100644 --- a/arch/mips/boot/compressed/Makefile +++ b/arch/mips/boot/compressed/Makefile @@ -29,6 +29,9 @@ KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS) +# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in. +KCOV_INSTRUMENT := n + # decompressor objects (linked with vmlinuz) vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o