glibc/sysdeps/unix/sysv/linux/sparc/sparc64/kstat_cp.h
Adhemerval Zanella cb49c65bb5 linux: Use INTERNAL_SYSCALL on fstatat{64}
Although not required by the standards, some code expects that a
successful stat call should not set errno.  However since aa03f722f3
'linux: Add {f}stat{at} y2038 support', on 32-bit systems with 32-bit
time_t supporrt, stat implementation will first issues __NR_statx and
if it fails with ENOSYS issue the system stat syscall.

On architecture running on kernel without __NR_statx support the
first call will set the errno to ENOSYS, even when the following stat
syscall might not fail.

This patch fixes by using INTERNAL_SYSCALL and only setting the errno
value when function returns.

Checked on i686-linux-gnu, x86_64-linux-gnu, sparc64-linux-gnu,
sparcv9-linux-gnu, powerpc64-linux-gnu, powerpc64le-linux-gnu,
arm-linux-gnueabihf, and aarch64-linux-gnu.
2020-10-16 14:17:44 -03:00

45 lines
1.7 KiB
C

/* Struct kernel_stat64 to stat64. Linux/SPARC version.
Copyright (C) 2020 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
<https://www.gnu.org/licenses/>. */
#include <errno.h>
static inline void
__cp_stat64_kstat64 (struct stat64 *st64, const struct kernel_stat64 *kst64)
{
st64->st_dev = kst64->st_dev;
st64->__pad1 = 0;
st64->st_ino = kst64->st_ino;
st64->st_mode = kst64->st_mode;
st64->st_nlink = kst64->st_nlink;
st64->st_uid = kst64->st_uid;
st64->st_gid = kst64->st_gid;
st64->st_rdev = kst64->st_rdev;
st64->__pad2 = 0;
st64->st_size = kst64->st_size;
st64->st_blksize = kst64->st_blksize;
st64->st_blocks = kst64->st_blocks;
st64->st_atim.tv_sec = kst64->st_atime_sec;
st64->st_atim.tv_nsec = kst64->st_atime_nsec;
st64->st_mtim.tv_sec = kst64->st_mtime_sec;
st64->st_mtim.tv_nsec = kst64->st_mtime_nsec;
st64->st_ctim.tv_sec = kst64->st_ctime_sec;
st64->st_ctim.tv_nsec = kst64->st_ctime_nsec;
st64->__glibc_reserved4 = 0;
st64->__glibc_reserved5 = 0;
}