From patchwork Fri May 12 17:58:12 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella Netto X-Patchwork-Id: 20440 Received: (qmail 45942 invoked by alias); 12 May 2017 17:58:39 -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 44654 invoked by uid 89); 12 May 2017 17:58:36 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-24.9 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_SPAM, SPF_PASS autolearn=ham version=3.3.2 spammy=17, 8 X-HELO: mail-qk0-f177.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=mwLQOzuA9wxRgxXiKmmw2KHLAjSLRj9a1+3EmHjDoic=; b=WNSJOZHPrw04w5iDgf4RB7iHeBADsQMSsBcWIpfYQpE4TBdlXCpYEYXh8hXHa3T3Rt NDDwBRH3kXMevN0DL1lTcX/3EFQ398zLmLfNq3HBs6ChPqPCQjBAwXfPn1Gqo2UObAOE vzKsDNpQAl7mQRcfvsdiJhORIRjczbJNbQvtUAP3HyuAYFwGa5MA3hrZeGaiyyysYzrM gBt4wRQl+cxHCFNPO5cCztnndO2r+FvD2lY7xuJRq9Hsh2waKGWpWlzkHdIRZq846hZc zD1hGw78fYkTaVP7RLb6ri+at/h6Z63XDJ2xwMkTc2QCSazWyGZJIsxTdLchXtJtPAZX fWAg== X-Gm-Message-State: AODbwcDURwCq/KOlhXozl7j1eZk/FYatIme6L7nKkE7o+9zdoLk2YE+J bfx0DFRU2F/pkEww22s2wQ== X-Received: by 10.55.76.69 with SMTP id z66mr4881621qka.1.1494611914989; Fri, 12 May 2017 10:58:34 -0700 (PDT) From: Adhemerval Zanella To: libc-alpha@sourceware.org Subject: [PATCH 11/13] linux: Consolidate Linux open_by_handle_at syscall Date: Fri, 12 May 2017 14:58:12 -0300 Message-Id: <1494611894-9282-11-git-send-email-adhemerval.zanella@linaro.org> In-Reply-To: <1494611894-9282-1-git-send-email-adhemerval.zanella@linaro.org> References: <1494611894-9282-1-git-send-email-adhemerval.zanella@linaro.org> This patch consolidates the open_by_handle_at Linux syscall generation on sysdeps/unix/sysv/linux/fdatasync.c. It basically removes it from architectures auto-generation list. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add open_by_handle_at. (CFLAGS-open_by_handle_at.c): New flag. * sysdeps/unix/sysv/linux/open_by_handle_at.c: New file. * sysdeps/unix/sysv/linux/syscalls.list (open_by_handle_at): New file. --- ChangeLog | 7 ++++++ sysdeps/unix/sysv/linux/Makefile | 3 ++- sysdeps/unix/sysv/linux/open_by_handle_at.c | 37 +++++++++++++++++++++++++++++ sysdeps/unix/sysv/linux/syscalls.list | 1 - 4 files changed, 46 insertions(+), 2 deletions(-) create mode 100644 sysdeps/unix/sysv/linux/open_by_handle_at.c diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 578f9e4..9e03a04 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -17,7 +17,8 @@ include $(firstword $(wildcard $(sysdirs:=/sysctl.mk))) sysdep_routines += clone umount umount2 readahead \ setfsuid setfsgid epoll_pwait signalfd \ eventfd eventfd_read eventfd_write prlimit \ - personality epoll_wait tee vmsplice splice + personality epoll_wait tee vmsplice splice \ + open_by_handle_at CFLAGS-gethostid.c = -fexceptions CFLAGS-tst-writev.c += "-DARTIFICIAL_LIMIT=(0x80000000-sysconf(_SC_PAGESIZE))" diff --git a/sysdeps/unix/sysv/linux/open_by_handle_at.c b/sysdeps/unix/sysv/linux/open_by_handle_at.c new file mode 100644 index 0000000..e69f041 --- /dev/null +++ b/sysdeps/unix/sysv/linux/open_by_handle_at.c @@ -0,0 +1,37 @@ +/* Obtain handle for an open file via a handle. Linux implementation. + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include +#include + +int +open_by_handle_at (int mount_fd, struct file_handle *handle, int flags) +{ +#ifdef __NR_open_by_handle_at + return SYSCALL_CANCEL (open_by_handle_at, mount_fd, handle, flags); +#else + __set_errno (ENOSYS); + return -1; +#endif +} + +#ifndef __NR_open_by_handle_at +stub_warning (open_by_handle_at) +#endif diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list index b40825a..a8d1299 100644 --- a/sysdeps/unix/sysv/linux/syscalls.list +++ b/sysdeps/unix/sysv/linux/syscalls.list @@ -106,7 +106,6 @@ timerfd_gettime EXTRA timerfd_gettime i:ip timerfd_gettime fanotify_init EXTRA fanotify_init i:ii fanotify_init name_to_handle_at EXTRA name_to_handle_at i:isppi name_to_handle_at -open_by_handle_at EXTRA open_by_handle_at Ci:ipi open_by_handle_at setns EXTRA setns i:ii setns