mirror of
				https://sourceware.org/git/glibc.git
				synced 2025-11-03 20:53:13 +03:00 
			
		
		
		
	
		
			
				
	
	
		
			62 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			62 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/* Copyright (C) 1997-2012 Free Software Foundation, Inc.
 | 
						|
   This file is part of the GNU C Library.
 | 
						|
   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 | 
						|
 | 
						|
   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 <errno.h>
 | 
						|
#include <unistd.h>
 | 
						|
 | 
						|
#include <sysdep-cancel.h>
 | 
						|
#include <sys/syscall.h>
 | 
						|
#include <bp-checks.h>
 | 
						|
 | 
						|
#include <kernel-features.h>
 | 
						|
 | 
						|
 | 
						|
ssize_t
 | 
						|
__libc_pread64 (fd, buf, count, offset)
 | 
						|
     int fd;
 | 
						|
     void *buf;
 | 
						|
     size_t count;
 | 
						|
     off64_t offset;
 | 
						|
{
 | 
						|
  ssize_t result;
 | 
						|
 | 
						|
  if (SINGLE_THREAD_P)
 | 
						|
    {
 | 
						|
      /* On PPC32 64bit values are aligned in odd/even register pairs.  */
 | 
						|
      result = INLINE_SYSCALL (pread, 6, fd, CHECK_N (buf, count), count,
 | 
						|
			       0, (long) (offset >> 32),
 | 
						|
			       (long) offset);
 | 
						|
 | 
						|
      return result;
 | 
						|
    }
 | 
						|
 | 
						|
  int oldtype = LIBC_CANCEL_ASYNC ();
 | 
						|
 | 
						|
  /* On PPC32 64bit values are aligned in odd/even register pairs.  */
 | 
						|
  result = INLINE_SYSCALL (pread, 6, fd, CHECK_N (buf, count), count,
 | 
						|
			   0, (long) (offset >> 32),
 | 
						|
			   (long) offset);
 | 
						|
 | 
						|
  LIBC_CANCEL_RESET (oldtype);
 | 
						|
 | 
						|
  return result;
 | 
						|
}
 | 
						|
 | 
						|
weak_alias (__libc_pread64, __pread64)
 | 
						|
weak_alias (__libc_pread64, pread64)
 |