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=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 autolearn=no 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 7C7B2C2BA19 for ; Tue, 14 Apr 2020 15:55:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4EEC420732 for ; Tue, 14 Apr 2020 15:55:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728951AbgDNPzE (ORCPT ); Tue, 14 Apr 2020 11:55:04 -0400 Received: from mail.kernel.org ([198.145.29.99]:50494 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732077AbgDNPzB (ORCPT ); Tue, 14 Apr 2020 11:55:01 -0400 Received: from gandalf.local.home (cpe-66-24-58-225.stny.res.rr.com [66.24.58.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id ACB8B206D5; Tue, 14 Apr 2020 15:55:00 +0000 (UTC) Date: Tue, 14 Apr 2020 11:54:58 -0400 From: Steven Rostedt To: Julien Thierry Cc: Matt Helsley , linux-kernel@vger.kernel.org, Josh Poimboeuf , Peter Zijlstra , Ingo Molnar , Miroslav Benes Subject: Re: [RFC][PATCH 00/36] objtool: Make recordmcount a subcommand Message-ID: <20200414115458.093e221b@gandalf.local.home> In-Reply-To: <064f41bd-0dfe-e875-df7c-214184c29fa7@redhat.com> References: <3a3f70df-07b0-91d9-33e1-e997e72b0c5c@redhat.com> <20200414093506.7b91bbbb@gandalf.local.home> <064f41bd-0dfe-e875-df7c-214184c29fa7@redhat.com> X-Mailer: Claws Mail 3.17.3 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 14 Apr 2020 15:17:39 +0100 Julien Thierry wrote: > > I was hoping to have objtool handle all the operations needed that required > > reading elf headers. > > > > That makes sense, however, having each operation as an objtool > subcommand doesn't solve that issue, right? Each invocation of objtool > will re-read the elf object. > > I guess having all the relevant code in objtool as subcommand would be a > first step towards that goal. Exactly. I believe the goal (it's been a while since we discussed this), was that we could "batch" the sub commands into a single command. That way, the executable will be executed once per object file, load all the elf headers, than iterate over all the sub commands that we set on the command line. -- Steve