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=-19.0 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 39E23C433E6 for ; Tue, 2 Mar 2021 15:29:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 086AE64EFC for ; Tue, 2 Mar 2021 15:29:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1578839AbhCBP10 (ORCPT ); Tue, 2 Mar 2021 10:27:26 -0500 Received: from mail.kernel.org ([198.145.29.99]:60566 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351020AbhCBNDN (ORCPT ); Tue, 2 Mar 2021 08:03:13 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id ADE2B64FC2; Tue, 2 Mar 2021 11:59:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1614686370; bh=bMJ+4KZFTTAhfNQfKVq3Q4hG5xnb/if3LpJydkC4iKM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LjLBb9JPj7IYYaX1BrLQLz9IUTasQgx7n7Yle3H59zSQuRN9ixbEfs1TkytUYo1Ip +ns2bQcC1wqD6PXM4n4tjbwQCZVv43BACy41UhCv30IeJq0NSEhQpH75MRASH/E5UY WRLqyFWbzilji4ELbFUdRGO7d+beTtVCQW4hUydd5C4cCvdl72oU6ozxYFeQQDGA/g nSApA0mLm1/i0wxR2lPjaZymEAB/ZhCxyRjh9DO9mXn0v2oPpsPgzOJWXlMAciL0P6 piiFS4Vbi1YWM7rJE3/JeBfBvR8o807xKhRuMsB2/buvQWQtFszbetNglXQsLwPXX0 5rA9lTjMGCuXg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Sami Tolvanen , Kees Cook , Sasha Levin Subject: [PATCH AUTOSEL 4.9 06/10] x86, build: use objtool mcount Date: Tue, 2 Mar 2021 06:59:17 -0500 Message-Id: <20210302115921.63636-6-sashal@kernel.org> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210302115921.63636-1-sashal@kernel.org> References: <20210302115921.63636-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sami Tolvanen [ Upstream commit 6dafca97803309c3cb5148d449bfa711e41ddef2 ] Select HAVE_OBJTOOL_MCOUNT if STACK_VALIDATION is selected to use objtool to generate __mcount_loc sections for dynamic ftrace with Clang and gcc <5 (later versions of gcc use -mrecord-mcount). Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook Signed-off-by: Sasha Levin --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 80636caee07c..b03d075ee9ee 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -101,6 +101,7 @@ config X86 select HAVE_CONTEXT_TRACKING if X86_64 select HAVE_COPY_THREAD_TLS select HAVE_C_RECORDMCOUNT + select HAVE_OBJTOOL_MCOUNT if STACK_VALIDATION select HAVE_DEBUG_KMEMLEAK select HAVE_DEBUG_STACKOVERFLOW select HAVE_DMA_API_DEBUG -- 2.30.1