From nobody Mon Apr 6 21:32:23 2026 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 66F34C38145 for ; Fri, 2 Sep 2022 14:30:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236814AbiIBOaq (ORCPT ); Fri, 2 Sep 2022 10:30:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51426 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237328AbiIBO1i (ORCPT ); Fri, 2 Sep 2022 10:27:38 -0400 Received: from desiato.infradead.org (desiato.infradead.org [IPv6:2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3FEB51581A0 for ; Fri, 2 Sep 2022 06:54:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Type:MIME-Version:References: Subject:Cc:To:From:Date:Message-ID:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:In-Reply-To; bh=SRnNkt6hDAocphBeeJEDz/2BjTiGPSIHa9g4nx269kU=; b=W9YsMVXO3ZSwz6cwrIMHRc5R+H pAPx70Q9qxyZ4fHSzemN4QHmvkXMfcQL6Pd4mRJnWXEb08hmQzO4PFwU69vObFim3DrYxmYO5vD2s stA7RoiwHu2GeCsAzgQPTvI/Xy+WDViFH13I0vwsnolDFYCQsYLfSrOXxigfTMMLU4haPFxzf4puZ s3soTbw7D/RaFGQgaB3zcLWoqrXYBUnJD47l0B1u2AgHU/V07gmXXHLnW2TJ1ZP+kK7syF7J7pdW8 DgaBgOZYOLYvEukw11aUvwv4E6h3dh7w98TnzwwK6+qf6Ls2fXnHMj0fblhbshti9zZF72nRLxzRP Vie5G/ng==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1oU77O-008g8c-2B; Fri, 02 Sep 2022 13:54:10 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 39EB2302ADB; Fri, 2 Sep 2022 15:53:54 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id 45F262B8EFB4D; Fri, 2 Sep 2022 15:53:53 +0200 (CEST) Message-ID: <20220902130950.722045248@infradead.org> User-Agent: quilt/0.66 Date: Fri, 02 Sep 2022 15:07:07 +0200 From: Peter Zijlstra To: Thomas Gleixner Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, x86@kernel.org, Linus Torvalds , Tim Chen , Josh Poimboeuf , Andrew Cooper , Pawan Gupta , Johannes Wikner , Alyssa Milburn , Jann Horn , "H.J. Lu" , Joao Moreira , Joseph Nuzman , Steven Rostedt , Juergen Gross , Masami Hiramatsu , Alexei Starovoitov , Daniel Borkmann , K Prateek Nayak , Eric Dumazet Subject: [PATCH v2 42/59] x86/entry: Make some entry symbols global References: <20220902130625.217071627@infradead.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Thomas Gleixner paranoid_entry(), error_entry() and xen_error_entry() have to be exempted from call accounting by thunk patching because they are before UNTRAIN_RET. Expose them so they are available in the alternative code. Signed-off-by: Thomas Gleixner Signed-off-by: Peter Zijlstra (Intel) --- arch/x86/entry/entry_64.S | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -327,7 +327,8 @@ SYM_CODE_END(ret_from_fork) #endif .endm =20 -SYM_CODE_START_LOCAL(xen_error_entry) +SYM_CODE_START(xen_error_entry) + ANNOTATE_NOENDBR UNWIND_HINT_FUNC PUSH_AND_CLEAR_REGS save_ret=3D1 ENCODE_FRAME_POINTER 8 @@ -906,7 +907,8 @@ SYM_CODE_END(xen_failsafe_callback) * R14 - old CR3 * R15 - old SPEC_CTRL */ -SYM_CODE_START_LOCAL(paranoid_entry) +SYM_CODE_START(paranoid_entry) + ANNOTATE_NOENDBR UNWIND_HINT_FUNC PUSH_AND_CLEAR_REGS save_ret=3D1 ENCODE_FRAME_POINTER 8 @@ -1041,7 +1043,8 @@ SYM_CODE_END(paranoid_exit) /* * Switch GS and CR3 if needed. */ -SYM_CODE_START_LOCAL(error_entry) +SYM_CODE_START(error_entry) + ANNOTATE_NOENDBR UNWIND_HINT_FUNC =20 PUSH_AND_CLEAR_REGS save_ret=3D1