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Consolidate rename Linux implementation

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This patch consolidates the Linux rename implementation on
sysdeps/unix/sysv/linux/rename.c.  Current code try to use
__NR_rename if is defined and apply the same strategy for
__NR_renameat and __NR_renameat2.

Check on x86_64 and aarch64.

	* sysdeps/unix/sysv/linux/rename.c: New file.
	* sysdeps/unix/sysv/linux/generic/rename.c: Remove file.
This commit is contained in:
Adhemerval Zanella
2016-11-11 09:02:46 -02:00
parent 2bf6e649d6
commit 7fe1e1d60a
2 changed files with 15 additions and 4 deletions
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35
sysdeps/unix/sysv/linux/rename.c Normal file
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/* Linux implementation for rename function.
Copyright (C) 2016 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
<http://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <fcntl.h>
#include <sysdep.h>
#include <errno.h>
/* Rename the file OLD to NEW. */
int
rename (const char *old, const char *new)
{
#if defined (__NR_rename)
return INLINE_SYSCALL_CALL (rename, old, new);
#elif defined (__NR_renameat)
return INLINE_SYSCALL_CALL (renameat, AT_FDCWD, old, AT_FDCWD, new);
#else
return INLINE_SYSCALL_CALL (renameat2, AT_FDCWD, old, AT_FDCWD, new, 0);
#endif
}