glibc/sysdeps/unix/sysv/linux/alpha/statfs.c
Adhemerval Zanella f6e616435d linux: Consolidate statfs implementations
The __NR_statfs64 syscall is supported on all architectures but
aarch64, mips64, riscv64, and x86_64.  And newer ABIs also uses
the new statfs64 interface (where the struct size is used as
second argument).

So the default implementation now uses:

  1. __NR_statfs64 for non-LFS call and handle overflow directly
     There is no need to handle __NR_statfs since all architectures
     that only support are LFS only.

  2. __NR_statfs if defined or __NR_statfs64 otherwise for LFS
     call.

Alpha is the only outlier, since it is a 64-bit architecture which
provides non-LFS interface and only provides __NR_statfs64 on
newer kernels (v5.1+).

Checked on x86_64-linux-gnu.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2021-02-11 08:00:11 -03:00

31 lines
1.1 KiB
C

/* Return information about the filesystem on which FILE resides. Linux/alpha.
Copyright (C) 1996-2021 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/statfs.h>
#include <sysdep.h>
#include <kernel_stat.h>
/* Return information about the filesystem on which FILE resides. */
int
__statfs (const char *file, struct statfs *buf)
{
return INLINE_SYSCALL_CALL (statfs, file, buf);
}
libc_hidden_def (__statfs)
weak_alias (__statfs, statfs)