sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.S

   1 /* Copyright (C) 1993, 1994, 1997 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Brendan Kehoe (brendan@zen.org).
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #include <sysdep.h>
  21 #define _ERRNO_H
  22 #include <bits/errno.h>
  23
  24 ENTRY(syscall_error)
  25         /* If it was a syscall that got interrupted, but can
  26            be restarted, drop EINTR in.  */
  27         cmp %o0, ERESTART
  28         be,a notint
  29         mov EINTR, %o0
  30
  31 notint:
  32 #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
  33         /* We translate the system's EWOULDBLOCK error into EAGAIN.
  34            The GNU C library always defines EWOULDBLOCK==EAGAIN.
  35            EWOULDBLOCK_sys is the original number.  */
  36         cmp %o0, EWOULDBLOCK_sys
  37         be,a notblock
  38         mov EAGAIN, %o0
  39 #endif
  40
  41 notblock:/* Store it in errno... */
  42         sethi %hi(C_SYMBOL_NAME(errno)), %g1
  43         st %o0, [%g1 + %lo(C_SYMBOL_NAME(errno))]
  44
  45         /* And just kick back a -1.  */
  46         retl
  47         mov -1, %o0