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=-1.0 required=3.0 tests=MAILING_LIST_MULTI,SPF_PASS 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 668C4C65C20 for ; Mon, 8 Oct 2018 17:44:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2B4AD2145D for ; Mon, 8 Oct 2018 17:44:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2B4AD2145D 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-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726488AbeJIA5o (ORCPT ); Mon, 8 Oct 2018 20:57:44 -0400 Received: from mx2.suse.de ([195.135.220.15]:37626 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726291AbeJIA5o (ORCPT ); Mon, 8 Oct 2018 20:57:44 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 50A20AD75; Mon, 8 Oct 2018 17:44:53 +0000 (UTC) Date: Mon, 8 Oct 2018 19:44:51 +0200 (CEST) From: Jiri Kosina To: Ard Biesheuvel cc: Andy Lutomirski , Peter Zijlstra , Steven Rostedt , LKML , Linus Torvalds , Ingo Molnar , Andrew Morton , Thomas Gleixner , Masami Hiramatsu , Mathieu Desnoyers , Matthew Helsley , "Rafael J. Wysocki" , David Woodhouse , Paolo Bonzini , Josh Poimboeuf , Jason Baron , Andrew Lutomirski Subject: Re: [POC][RFC][PATCH 1/2] jump_function: Addition of new feature "jump_function" In-Reply-To: Message-ID: References: <20181006015110.653946300@goodmis.org> <20181006015720.634688468@goodmis.org> <20181006121211.GA5663@hirez.programming.kicks-ass.net> <20181006093905.46276505@vmware.local.home> <20181008072134.GB5663@hirez.programming.kicks-ass.net> <20181008155757.GC5663@hirez.programming.kicks-ass.net> <20181008163953.GD5663@hirez.programming.kicks-ass.net> User-Agent: Alpine 2.21 (LSU 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 8 Oct 2018, Ard Biesheuvel wrote: > Does that mean that architectures could opt out of doing the whole > objtool + relocation processing thing, and instead take the hit of > going through the trampoline for all calls? There are architectures that aren't [currently] supported by objtool at all anyway. -- Jiri Kosina SUSE Labs