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=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,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 941E5C3B19F for ; Fri, 14 Feb 2020 16:39:42 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 6AF91217F4 for ; Fri, 14 Feb 2020 16:39:42 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="XaqTvneu"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="cQbBLQGr" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6AF91217F4 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-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=817sNlawext6y+63UzUFKTsH0FTtW9r2FxKs4Od6cGo=; b=XaqTvneuKsglIk vU6nsWOGVj9cEWqCChxzymDqAxt5ybzz7Iohn9eCXlCtKH/Qk1FkfCE27vF0v5IDDAb4gqJZUOv+w YsZj8N9EUPT2s/YXaQJCTHc9AC6hEPKZ/lIgkxozvQvyIau/TEm/1WUo7+lY/S5fAO2Bs43olDUMw P2Da6n4bZE3UgAAuRVy4BBBqbvpH0EFqzI4V3fBcQAQGQA5bbWyeXLG5YMWhOPDokvvLbrbC6OmYc +iNoy68TAhJkii9CipuL9p/r+QCpMByjdzjUWxwHBUsP6s4jQB9a8PUCm4pjlY02/wy7a6qYqXjQ7 77krUPHlh81FiNh2TRNQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1j2e08-0000D0-JW; Fri, 14 Feb 2020 16:39:36 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1j2da8-0004pP-OB for linux-arm-kernel@lists.infradead.org; Fri, 14 Feb 2020 16:12:47 +0000 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (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 A896D246AD; Fri, 14 Feb 2020 16:12:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581696764; bh=lWAgD2Omqn54//9A3l2dvEl/1ZU//HbLZ4rJgI2VEQo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cQbBLQGrEpjriyaKr18Q8UiXxx01vv8/33yUNJaGcev/r1e7Ak7Y9UxJfy5FGHKEs UdJN3BwFPXeN4n2AlYwkCkV8A9ElmZjHzhtijH7iFK1iDtK0BcdnF9H1Ct33oiMr4S S/4jlAxBdcNnhKATtcwlEPxWkSYMMSg7mC+2MdQg= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 044/252] ARM: 8952/1: Disable kmemleak on XIP kernels Date: Fri, 14 Feb 2020 11:08:19 -0500 Message-Id: <20200214161147.15842-44-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200214161147.15842-1-sashal@kernel.org> References: <20200214161147.15842-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200214_081245_901712_71905B26 X-CRM114-Status: GOOD ( 12.03 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Sasha Levin , Russell King , Vincenzo Frascino , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Vincenzo Frascino [ Upstream commit bc420c6ceefbb86cbbc8c00061bd779c17fa6997 ] Kmemleak relies on specific symbols to register the read only data during init (e.g. __start_ro_after_init). Trying to build an XIP kernel on arm results in the linking error reported below because when this option is selected read only data after init are not allowed since .data is read only (.rodata). arm-linux-gnueabihf-ld: mm/kmemleak.o: in function `kmemleak_init': kmemleak.c:(.init.text+0x148): undefined reference to `__end_ro_after_init' arm-linux-gnueabihf-ld: kmemleak.c:(.init.text+0x14c): undefined reference to `__end_ro_after_init' arm-linux-gnueabihf-ld: kmemleak.c:(.init.text+0x150): undefined reference to `__start_ro_after_init' arm-linux-gnueabihf-ld: kmemleak.c:(.init.text+0x156): undefined reference to `__start_ro_after_init' arm-linux-gnueabihf-ld: kmemleak.c:(.init.text+0x162): undefined reference to `__start_ro_after_init' arm-linux-gnueabihf-ld: kmemleak.c:(.init.text+0x16a): undefined reference to `__start_ro_after_init' linux/Makefile:1078: recipe for target 'vmlinux' failed Fix the issue enabling kmemleak only on non XIP kernels. Signed-off-by: Vincenzo Frascino Signed-off-by: Russell King Signed-off-by: Sasha Levin --- arch/arm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 185e552f14610..9f03befdfbf06 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -61,7 +61,7 @@ config ARM select HAVE_EBPF_JIT if !CPU_ENDIAN_BE32 select HAVE_CONTEXT_TRACKING select HAVE_C_RECORDMCOUNT - select HAVE_DEBUG_KMEMLEAK + select HAVE_DEBUG_KMEMLEAK if !XIP_KERNEL select HAVE_DMA_CONTIGUOUS if MMU select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32 && MMU select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel