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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 73058C4332F for ; Tue, 12 Oct 2021 08:49:22 +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 4769A61056 for ; Tue, 12 Oct 2021 08:49:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 4769A61056 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=XJGsacBwAc2aoyJz0oU2lNQgBX9kqHL6sJm2AanCnoc=; b=hZmJ70/QvrOlnM 7bkKMakuukc0sNB1CESJ8mESQImg1V/dDTQ+Yiu6QUMdpmtzPwVBNIxMBkPm4OkungFqYQ8An/6UW lJ+oDMMdeHmUCGJG36aWEr0cI6HmtBkxeJWAyXTegu7VxAk/2d5iXaEC+CveoQfQZn7Qfsxs653NT N0XPLrKAlBzOlpw6qsqdVpsp2yBLIocKNCaKxXETct87eCDVbHNpHGt0grRa4h3/NMh33ozL75AMs Rc7WCmA5HSztiv7ZUqy37Hyc5mXSXgnAN9x392uiOHCmExSC13xG+HkffizEeslRVlhuL17QMgCAK otPh232mu5esGJVIosvg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1maDRP-00C49O-DE; Tue, 12 Oct 2021 08:47:19 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1maDRC-00C477-Ph for linux-arm-kernel@lists.infradead.org; Tue, 12 Oct 2021 08:47:08 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 9111161050; Tue, 12 Oct 2021 08:47:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1634028426; bh=RwI+4/mNu7kHzEY5nASHdnF3vRm2cNh3JaAEODmnuGQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZnuBK2rBoXvpsq3AAJbdgxZW3nN6jiZnyWCheauxqDteyp8OnmqRQEXOrPsxsyYVP fE2UPew80wdqKI1/npKHaydNEI8bRMOcyeS4JT3afRpn9kHSZZPgzwVjrm8ISgZ2TD VZxX0+OzAlYRfjUHuB72RSxj177xty7SF7N8rhjoFnv1oW46XBf34S2oXiRQgzOklH ezMQY8GWGZ87DELjhr8c8k93lguh+KwcDs0rjynyWCj7IaQADu4vazq3hfOyvUjq/J 7RW/7Bp5YCNFkqW/17YalMW/xv4muz8XOr46crxWuDzagK7IuToT/yvIOzHJLGmC7y p+ALLaWv1xGKA== From: Will Deacon To: catalin.marinas@arm.com, Sumit Garg Cc: kernel-team@android.com, Will Deacon , linux-kernel@vger.kernel.org, llvm@lists.linux.dev, samitolvanen@google.com, mingo@redhat.com, rostedt@goodmis.org, daniel.thompson@linaro.org, ndesaulniers@google.com, ben.dai@unisoc.com, nathan@kernel.org, keescook@chromium.org, mark.rutland@arm.com, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v3] arm64: ftrace: use function_nocfi for _mcount as well Date: Tue, 12 Oct 2021 09:46:56 +0100 Message-Id: <163402708986.2334492.16010786137157285586.b4-ty@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20211011125059.3378646-1-sumit.garg@linaro.org> References: <20211011125059.3378646-1-sumit.garg@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211012_014706_870028_1B620F67 X-CRM114-Status: UNSURE ( 8.26 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, 11 Oct 2021 18:20:59 +0530, Sumit Garg wrote: > Commit 800618f955a9 ("arm64: ftrace: use function_nocfi for ftrace_call") > only fixed address of ftrace_call but address of _mcount needs to be > fixed as well. Use function_nocfi() to get the actual address of _mcount > function as with CONFIG_CFI_CLANG, the compiler replaces function pointers > with jump table addresses which breaks dynamic ftrace as the address of > _mcount is replaced with the address of _mcount.cfi_jt. > > [...] Applied to arm64 (for-next/misc), thanks! [1/1] arm64: ftrace: use function_nocfi for _mcount as well https://git.kernel.org/arm64/c/de56379f21c7 Cheers, -- Will https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel