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From: Adhemerval Zanella <azanella@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc/azanella/y2038] Linux: Consolidate xmknod Date: Thu, 30 Jul 2020 13:26:58 +0000 (GMT) [thread overview] Message-ID: <20200730132658.A3337388A836@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=7b4c3de6578fc27f8bd33c8a0fbe51b52f2ff038 commit 7b4c3de6578fc27f8bd33c8a0fbe51b52f2ff038 Author: Adhemerval Zanella <adhemerval.zanella@linaro.org> Date: Wed Jul 15 18:42:42 2020 +0000 Linux: Consolidate xmknod The __NR_mknodat syscall is supported on all kernels, so the generic implementation is used as default. Checked on x86_64-linux-gnu and i686-linux-gnu. Diff: --- sysdeps/unix/sysv/linux/generic/xmknod.c | 54 -------------------------------- sysdeps/unix/sysv/linux/xmknod.c | 8 ++--- 2 files changed, 3 insertions(+), 59 deletions(-) diff --git a/sysdeps/unix/sysv/linux/generic/xmknod.c b/sysdeps/unix/sysv/linux/generic/xmknod.c deleted file mode 100644 index a51fcbee22..0000000000 --- a/sysdeps/unix/sysv/linux/generic/xmknod.c +++ /dev/null @@ -1,54 +0,0 @@ -/* Copyright (C) 2011-2020 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. - - 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 - <https://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <fcntl.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/sysmacros.h> - -#include <sysdep.h> -#include <sys/syscall.h> - -/* Create a device file named PATH, with permission and special bits MODE - and device number DEV (which can be constructed from major and minor - device numbers with the `makedev' macro above). */ -int -__xmknod (int vers, const char *path, mode_t mode, dev_t *dev) -{ - unsigned long long int k_dev; - - if (vers != _MKNOD_VER) - { - __set_errno (EINVAL); - return -1; - } - - /* We must convert the value to dev_t type used by the kernel. */ - k_dev = (*dev) & ((1ULL << 32) - 1); - if (k_dev != *dev) - { - __set_errno (EINVAL); - return -1; - } - - return INLINE_SYSCALL (mknodat, 4, AT_FDCWD, path, mode, - (unsigned int) k_dev); -} -weak_alias (__xmknod, _xmknod) -libc_hidden_def (__xmknod) diff --git a/sysdeps/unix/sysv/linux/xmknod.c b/sysdeps/unix/sysv/linux/xmknod.c index 5d0ae97c34..42809d4c57 100644 --- a/sysdeps/unix/sysv/linux/xmknod.c +++ b/sysdeps/unix/sysv/linux/xmknod.c @@ -16,13 +16,10 @@ License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ -#include <errno.h> -#include <sys/types.h> #include <sys/stat.h> #include <sys/sysmacros.h> - +#include <fcntl.h> #include <sysdep.h> -#include <sys/syscall.h> /* Create a device file named PATH, with permission and special bits MODE and device number DEV (which can be constructed from major and minor @@ -40,7 +37,8 @@ __xmknod (int vers, const char *path, mode_t mode, dev_t *dev) if (k_dev != *dev) return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL); - return INLINE_SYSCALL (mknod, 3, path, mode, (unsigned int) k_dev); + return INLINE_SYSCALL_CALL (mknodat, AT_FDCWD, path, mode, + (unsigned int) k_dev); } weak_alias (__xmknod, _xmknod)
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