text: /* Copyright (C) 1997,1998,1999,2000,2002,2005,2006,2011
  	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, write to the Free
     Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
     02111-1307 USA.  */
  
  #include <sys/types.h>
  #include <errno.h>
  #include <unistd.h>
  
  #include <sysdep.h>
  #include <sys/syscall.h>
  #include <bp-checks.h>
  
  #include <kernel-features.h>
  
  #ifdef __NR_truncate64
  #ifndef __ASSUME_TRUNCATE64_SYSCALL
  /* The variable is shared between all wrappers around *truncate64 calls.  */
  int __have_no_truncate64;
  #endif
  
  
  /* Truncate the file referenced by FD to LENGTH bytes.  */
  int
  truncate64 (path, length)
       const char *path;
       off64_t length;
  {
  #ifndef __ASSUME_TRUNCATE64_SYSCALL
    if (! __have_no_truncate64)
  #endif
      {
  #ifndef __ASSUME_TRUNCATE64_SYSCALL
        int saved_errno = errno;
  #endif
        /* On PPC32 64bit values are aligned in odd/even register pairs.  */
        int result = INLINE_SYSCALL (truncate64, 4, CHECK_STRING (path), 0,
  				   (long) (length >> 32),
  				   (long) length);
  
  #ifndef __ASSUME_TRUNCATE64_SYSCALL
        if (result != -1 || errno != ENOSYS)
  #endif
  	return result;
  
  #ifndef __ASSUME_TRUNCATE64_SYSCALL
        __set_errno (saved_errno);
        __have_no_truncate64 = 1;
  #endif
      }
  
  #ifndef __ASSUME_TRUNCATE64_SYSCALL
    if ((off_t) length != length)
      {
        __set_errno (EINVAL);
        return -1;
      }
    return __truncate (path, (off_t) length);
  #endif
  }
  
  #else
  /* Use the generic implementation.  */
  # include <misc/truncate64.c>
  #endif
  