From patchwork Mon May 20 10:27:21 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukasz Majewski X-Patchwork-Id: 1101930 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=sourceware.org (client-ip=209.132.180.131; helo=sourceware.org; envelope-from=libc-alpha-return-102096-incoming=patchwork.ozlabs.org@sourceware.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=denx.de Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.b="SYp72Xg4"; dkim-atps=neutral Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 456w890wp1z9s3Z for ; Mon, 20 May 2019 20:27:52 +1000 (AEST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=pAlViE3YbFStEjGj2Dnti6TiRzhPw5N PB7ldMR8kAbhoItE3UQtNEGeMKHV2gqRPdTDHyiy2qpPdCDj+U6hjOvNtvfD5RXO qUXyv1bUU6w+/yen8n4gjpO9Rs+l+uNrGjFXmWJmTnkd7QBZ9dcnFnPQvORIgGM/ /d7jloJgT7ug= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:date:message-id:in-reply-to :references; s=default; bh=v3bMeyK4x71hgBdJjQ5mawu5bQc=; b=SYp72 Xg45AAbPwcc8qSMI5nqmjrMxipw+6ynViEyZc032B4Fv725/rYrX4xKFHvUMwTMs msPXed5iReWt0ei69GXBWiQ8tr5XIxrDbKUIumGV2KZe4E3ADtnSYo2FPKKwmchN y91/xEcEzkEz6AG6pXh8oGN2wv9exqeE4+x4F8= Received: (qmail 122647 invoked by alias); 20 May 2019 10:27:47 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 122639 invoked by uid 89); 20 May 2019 10:27:46 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-19.7 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, KAM_NUMSUBJECT, RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 spammy=clearing, H*r:192.168.8, 56, bitfield X-HELO: mail-out.m-online.net From: Lukasz Majewski To: libc-alpha@sourceware.org Cc: Stepan Golosunov , Arnd Bergmann , Paul Eggert , Joseph Myers , Lukasz Majewski Subject: [PATCH v4 1/3] y2038: Introduce internal for glibc struct __timespec64 Date: Mon, 20 May 2019 12:27:21 +0200 Message-Id: <20190520102723.5380-2-lukma@denx.de> In-Reply-To: <20190520102723.5380-1-lukma@denx.de> References: <20190414220841.20243-1-lukma@denx.de> <20190520102723.5380-1-lukma@denx.de> This type is a glibc's type similar to struct timespec but whose tv_sec field is a __time64_t rather than a time_t, which makes it Y2038-proof and usable to pass between user code and Y2038-proof kernel syscalls (e.g. clock_gettime()). To support passing this structure to the kernel - the tv_pad, 32 bit int, has been introduced. The placement of it depends on endianness of the SoC. Tested on x86_64 and ARM. * include/time.h: Add struct __timespec64 definition --- Changes for v4: - Change tv_pad's type from named bitfield to 32 bit int Changes for v3: - Replace __TIMESIZE with __WORDSIZE (as architectures with __TIMESIZE==64 will need to use this struct with 32 bit tv_nsec field). - Update in-code comment Changes for v2: - None --- include/time.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/include/time.h b/include/time.h index ac3163c2a5..7dabb7a568 100644 --- a/include/time.h +++ b/include/time.h @@ -5,6 +5,7 @@ # include # include # include