glibc/sysdeps/unix/sysv/linux/generic/stat-check.c
Alistair Francis c82005921e sysdeps/stat: Handle 64-bit ino_t types on 32-bit hosts
On a 32-bit platform with a 64-bit ino_t type (__INO_T_MATCHES_INO64_T
defined) we want to update the stat struct to remove the padding as it
isn't required. As we don't have the padding we also need to update the
overflow checker to not access the undefined members.
2019-10-23 12:43:31 -07:00

30 lines
1.2 KiB
C

/* Static assert for __blkcnt64_t when __INO_T_MATCHES_INO64_T is defined.
Copyright (C) 2019 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 <bits/typesizes.h>
/* This is due to the layout code in bits/stat.h and the overflow handling in
wordsize-32/overflow.h, requiring either all or none of the three types
concerned to have padding. */
#if defined __INO_T_MATCHES_INO64_T
_Static_assert (sizeof (__blkcnt_t) == sizeof (__blkcnt64_t),
"__blkcnt_t and __blkcnt64_t must match");
#endif