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=-6.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 47EEFC48BDF for ; Tue, 15 Jun 2021 04:57:05 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 C64F660FE4 for ; Tue, 15 Jun 2021 04:57:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C64F660FE4 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:48336 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lt18J-0000zl-S8 for qemu-devel@archiver.kernel.org; Tue, 15 Jun 2021 00:57:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34748) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lt16A-0007F0-3h for qemu-devel@nongnu.org; Tue, 15 Jun 2021 00:54:50 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:39168) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lt167-00020v-VY for qemu-devel@nongnu.org; Tue, 15 Jun 2021 00:54:49 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1623732885; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=X7ZwkCArWkvRxX33fkAF2wP9i4AcJI4Axrc53/lfCoU=; b=SgcAz5aw9BDGtnrwm1UFPs/jXRoW4t5GYVKJZvGR47GX5A/q2ftyrojwlES17sESoSzUHe lA/neSr3515WB88NQHNlCKF0I78vAiVRDOAQwF2CAXr4iEVqvPNpSeYNP3BoxfD/ZjAuMT hMUCszdQ6rlD1Yv1KjE8SuAmYJwnWUs= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-142-lIsYAvUxOnu0dGgQCaiR7g-1; Tue, 15 Jun 2021 00:54:44 -0400 X-MC-Unique: lIsYAvUxOnu0dGgQCaiR7g-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 382D7107ACF6 for ; Tue, 15 Jun 2021 04:54:43 +0000 (UTC) Received: from sirius.home.kraxel.org (ovpn-112-38.ams2.redhat.com [10.36.112.38]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 03D3A60C0F; Tue, 15 Jun 2021 04:54:43 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id 6BEA918000B2; Tue, 15 Jun 2021 06:54:41 +0200 (CEST) Date: Tue, 15 Jun 2021 06:54:41 +0200 From: Gerd Hoffmann To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Subject: Re: [PATCH v2 03/18] modules: add qemu-modinfo utility Message-ID: <20210615045441.2rgea2hxalb3pb5z@sirius.home.kraxel.org> References: <20210610055755.538119-1-kraxel@redhat.com> <20210610055755.538119-4-kraxel@redhat.com> <20210610130424.fj6fsufnunccmhmx@sirius.home.kraxel.org> <1636b96e-9073-b145-3fcc-3370fa2d7506@redhat.com> <20210614150159.6ilpce4dqxi7rju4@sirius.home.kraxel.org> MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=170.10.133.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.2, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Paolo Bonzini , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" > > Problem with that approach is that it doesn't work for module > > dependencies ... > > > > Comments on the idea? Suggestions for the module dependency problem? > > Could maybe libbfd be used to find module (symbol) dependencies > > automatically without writing a full dynamic linker? > > Is there any value in exploring use of libclang ? It gives us a real > C parser that we can use to extract information from the C source. In > libvirt we have experimental patches (not yet merged) using libclang to > auto-generate XML parser helpers from struct annotations. It is quite > nice compared to any other hacks for extracting information from C > source files without using a proper parser. libclang can be accessed > from Python3 via its bindings and IIUC should be usable on all our > build platforms Could you do something along the lines of ... (1) find constructors (2) find type_register() calls in the constructor and the TypeInfo structs passed to those calls. (3) inspect the TypeInfo structs to figure the QOM type names. ... with libclang? take care, Gerd