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author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-02-05 20:13:58 +0000 |
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committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2021-02-11 07:58:31 -0300 |
commit | 1bfbaf7130133ae740c09e12dfdd87df26e03d39 (patch) | |
tree | 6ce35b86fe247629bf6bb2dcdf4413fbaaf5d0a6 /sysdeps/unix/sysv/linux/generic | |
parent | e7702cb56ec99521124befba3c52903842a885c1 (diff) | |
download | glibc-1bfbaf7130133ae740c09e12dfdd87df26e03d39.tar.gz glibc-1bfbaf7130133ae740c09e12dfdd87df26e03d39.tar.xz glibc-1bfbaf7130133ae740c09e12dfdd87df26e03d39.zip |
linux: Consolidate fstatfs implementations
The __NR_fstatfs64 syscall is supported on all architectures but aarch64, mips64, riscv64, and x86_64. And newer ABIs also uses the new fstatfs64 interface (where the struct size is used as first argument). So the default implementation now uses: 1. __NR_fstatfs64 for non-LFS call and handle overflow directly There is no need to handle __NR_fstatfs since all architectures that only support are LFS only. 2. __NR_fstatfs if defined or __NR_fstatfs64 otherwise for LFS call. Alpha is the only outlier, it is a 64-bit architecture which provides non-LFS interface and only provides __NR_fstatfs64 on newer kernels (5.1+). Checked on x86_64-linux-gnu. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'sysdeps/unix/sysv/linux/generic')
-rw-r--r-- | sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c | 35 |
1 files changed, 0 insertions, 35 deletions
diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c b/sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c deleted file mode 100644 index a611f33128..0000000000 --- a/sysdeps/unix/sysv/linux/generic/wordsize-32/fstatfs.c +++ /dev/null @@ -1,35 +0,0 @@ -/* Copyright (C) 2011-2021 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 <sys/statfs.h> -#include <kernel_stat.h> -#include <stddef.h> -#include <sysdep.h> - -#if !STATFS_IS_STATFS64 -#include "overflow.h" - -/* Return information about the filesystem on which FD resides. */ -int -__fstatfs (int fd, struct statfs *buf) -{ - int rc = INLINE_SYSCALL (fstatfs64, 3, fd, sizeof (*buf), buf); - return rc ?: statfs_overflow (buf); -} -weak_alias (__fstatfs, fstatfs) -#endif |