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dd6e8af6ba
GCC 5.0 emits an warning when using sizeof on array function parameters
and powerpc internal syscall macros add a check for such cases. More
specifically, on powerpc64 and powerpc32 sysdep.h:
if (__builtin_classify_type (__arg3) != 5 && sizeof (__arg3) > 8) \
__illegally_sized_syscall_arg3 (); \
And for sysdeps/unix/sysv/linux/utimensat.c build GCC emits:
error: ‘sizeof’ on array function parameter ‘tsp’ will return size of
‘const struct timespec *’
This patch uses the address of first struct member instead of the struct
itself in syscall macro.
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/* Change access and modification times of open file. Linux version.
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Copyright (C) 2007-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <fcntl.h>
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#include <string.h>
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#include <time.h>
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#include <sysdep.h>
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/* Change the access time of the file associated with FD to TSP[0] and
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the modification time of FILE to TSP[1].
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Starting with 2.6.22 the Linux kernel has the utimensat syscall which
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can be used to implement futimens. */
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int
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futimens (int fd, const struct timespec tsp[2])
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{
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#ifdef __NR_utimensat
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if (fd < 0)
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{
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__set_errno (EBADF);
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return -1;
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}
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/* Avoid implicit array coercion in syscall macros. */
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return INLINE_SYSCALL (utimensat, 4, fd, NULL, &tsp[0], 0);
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#else
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__set_errno (ENOSYS);
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return -1;
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#endif
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}
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#ifndef __NR_utimensat
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stub_warning (futimens)
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#endif
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