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=-12.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT 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 AD8DBC41604 for ; Tue, 6 Oct 2020 09:45:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 38E11206F7 for ; Tue, 6 Oct 2020 09:45:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cxvW8cm8" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725939AbgJFJpE (ORCPT ); Tue, 6 Oct 2020 05:45:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48362 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725906AbgJFJpE (ORCPT ); Tue, 6 Oct 2020 05:45:04 -0400 Received: from mail-pf1-x444.google.com (mail-pf1-x444.google.com [IPv6:2607:f8b0:4864:20::444]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A5C6BC061755 for ; Tue, 6 Oct 2020 02:45:04 -0700 (PDT) Received: by mail-pf1-x444.google.com with SMTP id w21so8690066pfc.7 for ; Tue, 06 Oct 2020 02:45:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=Bfz1YZ5dIoN2aGR7YJ8XQT/WwiC9kxrzNC++l1jbOuI=; b=cxvW8cm8JXCSsB77mHpkG90iYna+vvl/bxfaG9GOp8LUL/5OTf4zu+4YBT9J+spHTR 5LVQC2Shsnht7t3HCLEAs9joxOBy5aBMhN5oHYtc96YTVJXOO2QpXcMGaG3qtewaAtkz XZSYaddfkGZ/vZqMbiZkoUw81Qk9rc+6BpbjIc6wkDW1dYK7HkkieIIE503fwg2yKTCz WLlvzz7a9eysSa2RjiZf3Cit40DVH2UhwrnGUlxhia02lCmi7t/QrxFlxd5SH6bGB5iA s5l08juAWB55buEw6955mqbuRZfsAb3WeCMMP3+9XoRgt+ySAQbUWZrDv0WzrUDicUL8 sCNQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=Bfz1YZ5dIoN2aGR7YJ8XQT/WwiC9kxrzNC++l1jbOuI=; b=Oc2Yq1e1yE6/hpz9mgntoOnUL+dPze/zfDENr5XFCrUDPR16gHXaTR2UP/Dxsl3ucO 68XGEbupiTp634fANCO9tGtKoD4+678RmpMLD7L1OT6cTYctWPzkAV6BnJ/9udlravct idsSV3LDC7SZonags/pE0lrz/txC6cidwOk/1xT+pJL1+qShhZirNnl3qY8TOVrHFCko AfLZmDegzBg82u6+PoJ7heQNJsBMSPOvJiQN4jwiaSSUmH0YuhTuowZNLByF8dalhCU3 QHHQXftQDw308VjsMNExP/BMV6j/0kLZsYAdam8iQnSKnUbtSJjQA/IhEWbxaivFf0WC 0QkA== X-Gm-Message-State: AOAM530O+uG3Zb23i+HZkyriNy3xu8TgBrG26y3tDUxT183lMs5CIvLz 6JgulHJb461LkJNbnzXQVig= X-Google-Smtp-Source: ABdhPJxp+VgOeK6IOBqA5KJH7DWJ7aLshWZY0GhcvSUPMT2RLzqI4UXNNoxCW1ir+rOFhynEUPxEdw== X-Received: by 2002:a63:595a:: with SMTP id j26mr3479617pgm.406.1601977504088; Tue, 06 Oct 2020 02:45:04 -0700 (PDT) Received: from earth-mac.local (219x123x138x129.ap219.ftth.ucom.ne.jp. [219.123.138.129]) by smtp.gmail.com with ESMTPSA id i17sm2829224pfa.29.2020.10.06.02.45.03 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 06 Oct 2020 02:45:03 -0700 (PDT) Received: by earth-mac.local (Postfix, from userid 501) id 077F620390F49A; Tue, 6 Oct 2020 18:45:01 +0900 (JST) From: Hajime Tazaki To: linux-um@lists.infradead.org, jdike@addtoit.com, richard@nod.at, anton.ivanov@cambridgegreys.com Cc: tavi.purdila@gmail.com, retrage01@gmail.com, linux-kernel-library@freelists.org, linux-arch@vger.kernel.org, Octavian Purdila Subject: [RFC v7 04/21] um: host: implement os_initcalls and os_exitcalls Date: Tue, 6 Oct 2020 18:44:13 +0900 Message-Id: X-Mailer: git-send-email 2.20.1 (Apple Git-117) In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org From: Octavian Purdila This patch implements the init and exit calls for host code. It uses the automatic __start_
and __stop_
variables that are defined by gcc / ld when using custom sections. Note that this patch should be merged with "um: move arch/um/os-Linux dir to tools/um" but for now it is separate to make the review easier. Signed-off-by: Octavian Purdila --- tools/um/uml/util.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/tools/um/uml/util.c b/tools/um/uml/util.c index ecf2f390fad2..4011b36fee7e 100644 --- a/tools/um/uml/util.c +++ b/tools/um/uml/util.c @@ -186,3 +186,29 @@ void os_warn(const char *fmt, ...) vfprintf(stderr, fmt, list); va_end(list); } + +extern void (*__start_os_exitcalls)(void); +extern void (*__stop_os_exitcalls)(void); + +void os_exitcalls(void) +{ + exitcall_t *call; + + call = &__stop_os_exitcalls; + while (--call >= &__start_os_exitcalls) + (*call)(); +} + +extern int (*__start_os_initcalls)(void); +extern int (*__stop_os_initcalls)(void); + +int os_initcalls(void) +{ + initcall_t *call; + + call = &__stop_os_initcalls; + while (--call >= &__start_os_initcalls) + (*call)(); + + return 0; +} -- 2.21.0 (Apple Git-122.2)