From patchwork Sun Apr 26 13:31:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukasz Majewski X-Patchwork-Id: 1277052 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=sourceware.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=sourceware.org; envelope-from=libc-alpha-bounces@sourceware.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=denx.de Received: from sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 49982G17Rxz9sPF for ; Sun, 26 Apr 2020 23:31:34 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 2CD0F386F468; Sun, 26 Apr 2020 13:31:30 +0000 (GMT) X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-out.m-online.net (mail-out.m-online.net [212.18.0.9]) by sourceware.org (Postfix) with ESMTPS id 8FA80385DC1B for ; Sun, 26 Apr 2020 13:31:27 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 8FA80385DC1B Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=denx.de Authentication-Results: sourceware.org; spf=none smtp.mailfrom=lukma@denx.de Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 49982568ZLz1qrLN; Sun, 26 Apr 2020 15:31:25 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 49982553DSz1qrhr; Sun, 26 Apr 2020 15:31:25 +0200 (CEST) X-Virus-Scanned: amavisd-new at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id 46sVUloaSVTG; Sun, 26 Apr 2020 15:31:24 +0200 (CEST) X-Auth-Info: WV63nsPmf03fCzOiGsaZ6JvSTZCQ6WiK3YC2g+YKrFA= Received: from localhost.localdomain (85-222-111-42.dynamic.chello.pl [85.222.111.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Sun, 26 Apr 2020 15:31:24 +0200 (CEST) From: Lukasz Majewski To: Joseph Myers , Adhemerval Zanella Subject: [PATCH 00/10] y2038: Convert clock_adjtime related syscalls to support 64 bit time Date: Sun, 26 Apr 2020 15:31:00 +0200 Message-Id: <20200426133110.5312-1-lukma@denx.de> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-Spam-Status: No, score=-22.5 required=5.0 tests=BAYES_00, GIT_PATCH_3, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: GNU C Library , Andreas Schwab , Alistair Francis Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" This patch series converts clock_adjtime to support 64 bit time (by using clock_adjtime64) when __ASSUME_TIME64_SYSCALLS is defined. This change required introduction of two new internal types - struct __ntptimeval64 and struct __timex64 to accomodate 64 bit time on architectures with __TIMESIZE != 64 and __WORDSIZE == 32. In several places in the glibc the struct timeval has been replaced with struct __timeval64. As a result new, 64 bit supporting functions: __adjtime64 __adjtimex64 __ntp_gettime64 __ntp_gettimex64 were introduced. The introduced struct __timex64 is a copy of Linux kernel's struct __kernel_timex (v5.6) introduced for properly handling data for clock_adjtime64 syscall. As the struct's __kernel_timex size is the same as for archs with __WORDSIZE == 64, proper padding and data types conversion (i.e. long to long long) had to be added for architectures with __WORDSIZE == 32 && __TIMESIZE != 64. Moreover, the clock_adjtime64 syscall handling in Linux kernel has been broken up till v5.4. Lukasz Majewski (10): y2038: include: Move struct __timeval64 definition to a separate file y2038: Introduce struct __timex64 - new internal glibc type y2038: Provide conversion helpers for struct __timex64 y2038: linux: Provide __clock_adjtime64 implementation y2038: linux: Provide ___adjtimex64 implementation y2038: linux: Provide __adjtime64 implementation y2038: Introduce struct __ntptimeval64 - new internal glibc type y2038: Provide conversion helpers for struct __ntptimeval64 y2038: linux: Provide __ntp_gettime64 implementation y2038: linux: Provide __ntp_gettimex64 implementation include/struct___timeval64.h | 17 ++ include/sys/time.h | 9 ++ include/time.h | 15 +- sysdeps/unix/sysv/linux/Makefile | 2 +- sysdeps/unix/sysv/linux/adjtime.c | 26 +++- sysdeps/unix/sysv/linux/adjtimex.c | 21 ++- sysdeps/unix/sysv/linux/clock_adjtime.c | 64 ++++++++ sysdeps/unix/sysv/linux/include/sys/timex.h | 162 ++++++++++++++++++++ sysdeps/unix/sysv/linux/ntp_gettime.c | 24 ++- sysdeps/unix/sysv/linux/ntp_gettimex.c | 24 ++- sysdeps/unix/sysv/linux/syscalls.list | 1 - 11 files changed, 337 insertions(+), 28 deletions(-) create mode 100644 include/struct___timeval64.h create mode 100644 sysdeps/unix/sysv/linux/clock_adjtime.c