glibc/sysdeps/unix/sysv/linux/fxstat.c
Adhemerval Zanella 22edf4d4b2 Revert "linux: Move {f}xstat{at} to compat symbols"
This reverts commit 20b39d5946 to move
{f}xstat{at} back to default symbols.  ABIs with default symbol version
of 2.33 or newer (such as riscv32) continue to just provide the stat
symbols.

The idea is to not force static libraries built against old glibc
to update against new glibcs (since they reference the old
{f}xstat{at} symbols).

Checked on x86_64-linux-gnu and i686-linux-gnu.
2020-12-02 14:45:22 -03:00

67 lines
1.9 KiB
C

/* fxstat using old-style Unix fstat system call.
Copyright (C) 1991-2020 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 <sys/stat.h>
#include <fcntl.h>
#include <kernel_stat.h>
#include <sysdep.h>
#if !XSTAT_IS_XSTAT64
# include <xstatconv.h>
# include <xstatover.h>
# include <shlib-compat.h>
# if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_33)
/* Get information about the file FD in BUF. */
int
__fxstat (int vers, int fd, struct stat *buf)
{
switch (vers)
{
case _STAT_VER_KERNEL:
{
# if STAT_IS_KERNEL_STAT
/* New kABIs which uses generic pre 64-bit time Linux ABI,
e.g. csky, nios2 */
int r = INLINE_SYSCALL_CALL (fstat64, fd, buf);
return r ?: stat_overflow (buf);
# else
/* Old kABIs with old non-LFS support, e.g. arm, i386, hppa, m68k,
microblaze, s390, sh, powerpc, and sparc. */
return INLINE_SYSCALL_CALL (fstat, fd, buf);
# endif
}
default:
{
# if STAT_IS_KERNEL_STAT
return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
# else
struct stat64 buf64;
int r = INLINE_SYSCALL_CALL (fstat64, fd, &buf64);
return r ?: __xstat32_conv (vers, &buf64, buf);
#endif
}
}
}
# endif /* SHLIB_COMPAT */
#endif /* XSTAT_IS_XSTAT64 */