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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 5DFC8C71145 for ; Thu, 24 Aug 2023 05:55:23 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qZ3IX-0002YM-EV; Thu, 24 Aug 2023 01:54:25 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qZ3IW-0002Y9-GZ for qemu-devel@nongnu.org; Thu, 24 Aug 2023 01:54:24 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qZ3IS-0000Xp-EZ for qemu-devel@nongnu.org; Thu, 24 Aug 2023 01:54:24 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1692856458; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jpgbh+1g4UlCGAndm6EgiOuGYQAZDsGP7BnVnoFa+wA=; b=XC7/ClIyH4JYZ0qrJEjEEOl8zfzfxBBTVRCuD5CWP0uFEpLUFhJdCCP+7QFlekxCw/bAdn i1tP3cT3W35mBYT/qTZnZOjGbYTJrEulHnKIr5K8n1KNT3omopipHWnFOXKppdWbsYaWao Dv49l2rg3hCdd3p3ZtMMCq1NDqxcldc= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-664-bvBV7N93O7GEUNv-LClPfQ-1; Thu, 24 Aug 2023 01:54:16 -0400 X-MC-Unique: bvBV7N93O7GEUNv-LClPfQ-1 Received: from smtp.corp.redhat.com (int-mx10.intmail.prod.int.rdu2.redhat.com [10.11.54.10]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 13D9F185A791; Thu, 24 Aug 2023 05:54:16 +0000 (UTC) Received: from blackfin.pond.sub.org (unknown [10.39.192.86]) by smtp.corp.redhat.com (Postfix) with ESMTPS id CA1D2492C13; Thu, 24 Aug 2023 05:54:15 +0000 (UTC) Received: by blackfin.pond.sub.org (Postfix, from userid 1000) id C524F21E690D; Thu, 24 Aug 2023 07:54:14 +0200 (CEST) From: Markus Armbruster To: Liu Jaloo Cc: qemu-devel@nongnu.org Subject: Re: constructor vs. __constructor__ References: Date: Thu, 24 Aug 2023 07:54:14 +0200 In-Reply-To: (Liu Jaloo's message of "Thu, 24 Aug 2023 11:24:00 +0800") Message-ID: <87jztlt27t.fsf@pond.sub.org> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.10 Received-SPF: pass client-ip=170.10.133.124; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Liu Jaloo writes: > What's the difference between "__attribute__((constructor))" and > "__attribute__((__constructor__))" in qemu source? Reading the fine manual helps: You may optionally specify attribute names with =E2=80=98__=E2=80=99 pr= eceding and following the name. This allows you to use them in header files without being concerned about a possible macro of the same name. For example, you may use the attribute name __noreturn__ instead of noreturn. https://gcc.gnu.org/onlinedocs/gcc/Attribute-Syntax.html