[09/10] linux: Remove overflow.h
Commit Message
The header is not used anywhere, the required functions are provided
by other implementations.
---
.../sysv/linux/generic/wordsize-32/overflow.h | 69 -------------------
1 file changed, 69 deletions(-)
delete mode 100644 sysdeps/unix/sysv/linux/generic/wordsize-32/overflow.h
Comments
On 2/8/21 4:49 PM, Adhemerval Zanella via Libc-alpha wrote:
> The header is not used anywhere, the required functions are provided
> by other implementations.
LGTM.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
> ---
> .../sysv/linux/generic/wordsize-32/overflow.h | 69 -------------------
> 1 file changed, 69 deletions(-)
> delete mode 100644 sysdeps/unix/sysv/linux/generic/wordsize-32/overflow.h
>
> diff --git a/sysdeps/unix/sysv/linux/generic/wordsize-32/overflow.h b/sysdeps/unix/sysv/linux/generic/wordsize-32/overflow.h
> deleted file mode 100644
> index f2a58d654f..0000000000
> --- a/sysdeps/unix/sysv/linux/generic/wordsize-32/overflow.h
> +++ /dev/null
> @@ -1,69 +0,0 @@
> -/* Overflow tests for stat, statfs, and lseek functions.
> - 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/stat.h>
> -#include <sys/statfs.h>
> -#include <sys/types.h>
> -
> -/* Test for overflows of structures where we ask the kernel to fill them
> - in with standard 64-bit syscalls but return them through APIs that
> - only expose the low 32 bits of some fields. */
> -
> -static inline off_t lseek_overflow (loff_t res)
> -{
> - off_t retval = (off_t) res;
> - if (retval == res)
> - return retval;
> -
> - __set_errno (EOVERFLOW);
> - return (off_t) -1;
> -}
> -
> -static inline int stat_overflow (struct stat *buf)
> -{
> -#if defined __INO_T_MATCHES_INO64_T
> - return 0;
> -#else
> - if (buf->__st_ino_pad == 0 && buf->__st_size_pad == 0
> - && buf->__st_blocks_pad == 0)
> - return 0;
> -
> - __set_errno (EOVERFLOW);
> - return -1;
> -#endif
> -}
> -
> -/* Note that f_files and f_ffree may validly be a sign-extended -1. */
> -static inline int statfs_overflow (struct statfs *buf)
> -{
> -#if __STATFS_MATCHES_STATFS64
> - return 0;
> -#else
> - if (buf->__f_blocks_pad == 0 && buf->__f_bfree_pad == 0
> - && buf->__f_bavail_pad == 0
> - && (buf->__f_files_pad == 0
> - || (buf->f_files == -1U && buf->__f_files_pad == -1))
> - && (buf->__f_ffree_pad == 0
> - || (buf->f_ffree == -1U && buf->__f_ffree_pad == -1)))
> - return 0;
> -
> - __set_errno (EOVERFLOW);
> - return -1;
> -#endif
> -}
>
deleted file mode 100644
@@ -1,69 +0,0 @@
-/* Overflow tests for stat, statfs, and lseek functions.
- 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/stat.h>
-#include <sys/statfs.h>
-#include <sys/types.h>
-
-/* Test for overflows of structures where we ask the kernel to fill them
- in with standard 64-bit syscalls but return them through APIs that
- only expose the low 32 bits of some fields. */
-
-static inline off_t lseek_overflow (loff_t res)
-{
- off_t retval = (off_t) res;
- if (retval == res)
- return retval;
-
- __set_errno (EOVERFLOW);
- return (off_t) -1;
-}
-
-static inline int stat_overflow (struct stat *buf)
-{
-#if defined __INO_T_MATCHES_INO64_T
- return 0;
-#else
- if (buf->__st_ino_pad == 0 && buf->__st_size_pad == 0
- && buf->__st_blocks_pad == 0)
- return 0;
-
- __set_errno (EOVERFLOW);
- return -1;
-#endif
-}
-
-/* Note that f_files and f_ffree may validly be a sign-extended -1. */
-static inline int statfs_overflow (struct statfs *buf)
-{
-#if __STATFS_MATCHES_STATFS64
- return 0;
-#else
- if (buf->__f_blocks_pad == 0 && buf->__f_bfree_pad == 0
- && buf->__f_bavail_pad == 0
- && (buf->__f_files_pad == 0
- || (buf->f_files == -1U && buf->__f_files_pad == -1))
- && (buf->__f_ffree_pad == 0
- || (buf->f_ffree == -1U && buf->__f_ffree_pad == -1)))
- return 0;
-
- __set_errno (EOVERFLOW);
- return -1;
-#endif
-}