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=-12.8 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 434C8C4346E for ; Thu, 24 Sep 2020 07:14:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D6A4B2396D for ; Thu, 24 Sep 2020 07:14:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="bDRiwy+O" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726993AbgIXHOP (ORCPT ); Thu, 24 Sep 2020 03:14:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46972 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726929AbgIXHOP (ORCPT ); Thu, 24 Sep 2020 03:14:15 -0400 Received: from mail-pg1-x544.google.com (mail-pg1-x544.google.com [IPv6:2607:f8b0:4864:20::544]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4EB0DC0613CE for ; Thu, 24 Sep 2020 00:14:15 -0700 (PDT) Received: by mail-pg1-x544.google.com with SMTP id l71so1354215pge.4 for ; Thu, 24 Sep 2020 00:14:15 -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=bDRiwy+OBmf9+dYoD0f6rZFMOQ5EIJ4Gj9fz1X8mEeMvEPNyzevLyIaaNPhAWtOHzF xE/Res2P+sLHlqQnnfN4rfk5q9lyM7x5UGs/FIKoJdpiEmqlZQgDqb0x7wdLaIE7Tmn1 F1Kab+CvwFDkXtahnmViPvWRhqZLKglR9+1LjoRP4ZIPMEOoQcYVpp7G+Dc6GFv+yY59 YiEmXFSS9kp+aLv8U5olm//VkbX3uAMnkgfB1Ea3pbKNyJLkonXJrz2ab4XF+ZOoXwW3 gfujKiLKlrLr4XV/l9Z7X2uuaYCAl9TfnLNtEvjZ2yJC8rWvGxxZZhrq//CxVkL4etZ9 sXXA== 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=XWy2h8XNqxYERUrgV1EBsw+D6dECDPchp3MPqy15tgyadYqL8LlnWnINtXTPLmQ54t WGqVZ4Edr+2uTSFjA3KWI1yUD8OBX9IrztuHFP/tvw03bzBdIrD7TD5SiC8Xy4djog7h dylJSsKFulWAc/2bKo35UhK92khSa9cfAjy2xwsJmUcE5nY4Wyg6c2hr4ikZIgrFIqdQ m5wCkokfhz9rpK90TNoOAz+jL0veKhSDGYIqshL4iDXlBj7eIJjYiW/TkqCrU+K7whEm /wNMSymQ1hM9ATBiH+hlWFe8unlv8FsmQbvtPuI0KR0wi6XUDddE+XDJKehUMsJxvOTU MsGw== X-Gm-Message-State: AOAM532Whr+IRC+JJXF89OZxmmbbE9UAXb+1l2r6W4B6fVOkt+mUCQNW xtLXdSR1njuGp3t0QKEz+C0= X-Google-Smtp-Source: ABdhPJx76/l2E/HyukrgHAeLcdQc2Ypx9BzDY/iDm8vH17cL8MGrc7Kg8/O/vBwyEGStE8W+Emy/Hg== X-Received: by 2002:a63:c64c:: with SMTP id x12mr2837301pgg.138.1600931654773; Thu, 24 Sep 2020 00:14:14 -0700 (PDT) Received: from earth-mac.local (219x123x138x129.ap219.ftth.ucom.ne.jp. [219.123.138.129]) by smtp.gmail.com with ESMTPSA id v205sm1762846pfc.110.2020.09.24.00.14.13 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Thu, 24 Sep 2020 00:14:14 -0700 (PDT) Received: by earth-mac.local (Postfix, from userid 501) id 575762037C203D; Thu, 24 Sep 2020 16:14:12 +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 v6 04/21] um: host: implement os_initcalls and os_exitcalls Date: Thu, 24 Sep 2020 16:12:44 +0900 Message-Id: <278b23a9e7f1cb0de260f2c6fe9f5919fb51cce9.1600922528.git.thehajime@gmail.com> 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)