{"id":811228,"url":"http://patchwork.ozlabs.org/api/patches/811228/?format=json","web_url":"http://patchwork.ozlabs.org/project/glibc/patch/20170907224219.12483-29-albert.aribaud@3adev.fr/","project":{"id":41,"url":"http://patchwork.ozlabs.org/api/projects/41/?format=json","name":"GNU C Library","link_name":"glibc","list_id":"libc-alpha.sourceware.org","list_email":"libc-alpha@sourceware.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20170907224219.12483-29-albert.aribaud@3adev.fr>","list_archive_url":null,"date":"2017-09-07T22:41:55","name":"[RFC,28/52] Y2038: add function __time_t64","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"21da469afbb9af67f5e4d31cd5a27ba9c0b38425","submitter":{"id":65557,"url":"http://patchwork.ozlabs.org/api/people/65557/?format=json","name":"Albert ARIBAUD (3ADEV)","email":"albert.aribaud@3adev.fr"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/glibc/patch/20170907224219.12483-29-albert.aribaud@3adev.fr/mbox/","series":[{"id":2074,"url":"http://patchwork.ozlabs.org/api/series/2074/?format=json","web_url":"http://patchwork.ozlabs.org/project/glibc/list/?series=2074","date":"2017-09-07T22:41:27","name":"Make GLIBC Y2038-proof","version":1,"mbox":"http://patchwork.ozlabs.org/series/2074/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/811228/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/811228/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":["patchwork-incoming@bilbo.ozlabs.org","mailing list libc-alpha@sourceware.org"],"Authentication-Results":["ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=sourceware.org\n\t(client-ip=209.132.180.131; helo=sourceware.org;\n\tenvelope-from=libc-alpha-return-84346-incoming=patchwork.ozlabs.org@sourceware.org;\n\treceiver=)","ozlabs.org; dkim=pass (1024-bit key;\n\tsecure) header.d=sourceware.org header.i=@sourceware.org\n\theader.b=\"D5LYycSI\"; dkim-atps=neutral","sourceware.org; auth=none"],"Received":["from sourceware.org (server1.sourceware.org [209.132.180.131])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xpFw36wcbz9sDB\n\tfor ;\n\tFri, 8 Sep 2017 08:47:47 +1000 (AEST)","(qmail 87566 invoked by alias); 7 Sep 2017 22:44:29 -0000","(qmail 86974 invoked by uid 89); 7 Sep 2017 22:44:28 -0000"],"DomainKey-Signature":"a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:from:to:cc:subject:date:message-id:in-reply-to\n\t:references; q=dns; s=default; b=bo1w/qzGNr4L9h36CfNortNA7AU23jC\n\t89+K1Kg4ElRyAfHGBopRxOk0+ySL5UbPh1EVqUNcOKrMB06MMoVabtmly1P4MV33\n\tnduxY6PfMDgp+HAluEiHfgpchFaKPl06s4m8FYToWt8+mHjCRV8pynCCe2LLf9MQ\n\ta8k0+imilf2w=","DKIM-Signature":"v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id\n\t:list-unsubscribe:list-subscribe:list-archive:list-post\n\t:list-help:sender:from:to:cc:subject:date:message-id:in-reply-to\n\t:references; s=default; bh=S21fxJLnrv6K7+uyEUAt7QMLQvs=; b=D5LYy\n\tcSILV8N0SyAVGg6v0D88Zm9Qnyo/iuIerU82hXNDNRW8J8WOQ+43Tjbjme9Ogrgk\n\tJWDahcl/DvPSF6OGJwPXWYGbHA9hpeAezwmlh6/4YjzmFmNw6dj7YiOTrAsXP2uL\n\tbw0enjYZCT1bbrYBOy4YtGVt01vsIaOYB9+ico=","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":",\n\t","Sender":"libc-alpha-owner@sourceware.org","X-Virus-Found":"No","X-Spam-SWARE-Status":"No, score=-26.6 required=5.0 tests=BAYES_00, GIT_PATCH_0,\n\tGIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3,\n\tKAM_LAZY_DOMAIN_SECURITY,\n\tRCVD_IN_DNSWL_LOW autolearn=ham version=3.3.2 spammy=","X-HELO":"smtp6-g21.free.fr","From":"\"Albert ARIBAUD (3ADEV)\" ","To":"libc-alpha@sourceware.org","Cc":"\"Albert ARIBAUD (3ADEV)\" ","Subject":"[RFC PATCH 28/52] Y2038: add function __time_t64","Date":"Fri, 8 Sep 2017 00:41:55 +0200","Message-Id":"<20170907224219.12483-29-albert.aribaud@3adev.fr>","In-Reply-To":"<20170907224219.12483-28-albert.aribaud@3adev.fr>","References":"<20170907224219.12483-1-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-2-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-3-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-4-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-5-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-6-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-7-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-8-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-9-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-10-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-11-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-12-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-13-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-14-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-15-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-16-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-17-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-18-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-19-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-20-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-21-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-22-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-23-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-24-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-25-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-26-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-27-albert.aribaud@3adev.fr>\n\t<20170907224219.12483-28-albert.aribaud@3adev.fr>"},"content":"These implementations use only 32-bit time kernel syscalls.\n\nTherefore, stime() will always set errno to EOVERFLOW and return -1 for dates beyond Y2038.\n\nSigned-off-by: Albert ARIBAUD (3ADEV) \n---\n sysdeps/posix/time.c | 26 ++++++++++++++++++++++++++\n sysdeps/unix/sysv/linux/time.c | 22 ++++++++++++++++++++++\n time/Versions | 1 +\n time/time.c | 13 +++++++++++++\n 4 files changed, 62 insertions(+)","diff":"diff --git a/sysdeps/posix/time.c b/sysdeps/posix/time.c\nindex 32ca177514..a4c4a03c55 100644\n--- a/sysdeps/posix/time.c\n+++ b/sysdeps/posix/time.c\n@@ -38,3 +38,29 @@ time (time_t *t)\n return result;\n }\n libc_hidden_def (time)\n+\n+/* 64-bit time version */\n+\n+extern int __y2038_linux_support;\n+\n+__time64_t\n+__time_t64 (__time64_t *t)\n+{\n+ struct timeval tv32;\n+ __time64_t result;\n+\n+ if (__y2038_linux_support)\n+ {\n+ /* TODO: implement using 64-bit time syscall */\n+ }\n+\n+ if (__gettimeofday (&tv32, (struct timezone *) NULL))\n+ result = (__time64_t) -1;\n+ else\n+ result = (__time64_t) tv32.tv_sec;\n+\n+ if (t != NULL)\n+ *t = result;\n+\n+ return result;\n+}\ndiff --git a/sysdeps/unix/sysv/linux/time.c b/sysdeps/unix/sysv/linux/time.c\nindex 72d4040cbc..b6c7e61844 100644\n--- a/sysdeps/unix/sysv/linux/time.c\n+++ b/sysdeps/unix/sysv/linux/time.c\n@@ -34,6 +34,28 @@ time (time_t *t)\n }\n libc_hidden_def (time)\n \n+/* 64-BIT TIME VERSION */\n+\n+extern int __y2038_linux_support;\n+\n+__time64_t\n+__time_t64 (__time64_t *t)\n+{\n+ INTERNAL_SYSCALL_DECL (err);\n+ __time64_t res;\n+\n+ if (__y2038_linux_support)\n+ {\n+ /* TODO: implement using 64-bit time syscall */\n+ }\n+\n+ res = INTERNAL_SYSCALL (time, err, 1, NULL);\n+ /* There cannot be any error. */\n+ if (t != NULL)\n+ *t = res;\n+ return res;\n+}\n+\n #else\n \n # include \ndiff --git a/time/Versions b/time/Versions\nindex 3fe860862a..02dc8d6146 100644\n--- a/time/Versions\n+++ b/time/Versions\n@@ -71,5 +71,6 @@ libc {\n \n GLIBC_Y2038 {\n __timespec_get64;\n+ __time_t64;\n }\n }\ndiff --git a/time/time.c b/time/time.c\nindex e375035265..a487068468 100644\n--- a/time/time.c\n+++ b/time/time.c\n@@ -31,3 +31,16 @@ time (time_t *timer)\n libc_hidden_def (time)\n \n stub_warning (time)\n+\n+/* 64-bit time version */\n+\n+__time64_t\n+__time_t64 (__time64_ *timer)\n+{\n+ __set_errno (ENOSYS);\n+\n+ if (timer != NULL)\n+ *timer = (__time64_t) -1;\n+ return (__time64_t) -1;\n+}\n+libc_hidden_def (__time_t64)\n","prefixes":["RFC","28/52"]}