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

   1 /* Copyright (C) 1993, 1994 Free Software Foundation, Inc.
   2    Contributed by Brendan Kehoe (brendan@zen.org).
   3
   4 The GNU C Library is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU Library General Public License as
   6 published by the Free Software Foundation; either version 2 of the
   7 License, or (at your option) any later version.
   8
   9 The GNU C Library is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 Library General Public License for more details.
  13
  14 You should have received a copy of the GNU Library General Public
  15 License along with the GNU C Library; see the file COPYING.LIB.  If
  16 not, write to the Free Software Foundation, Inc., 675 Mass Ave,
  17 Cambridge, MA 02139, USA.  */
  18
  19 #include <sysdep.h>
  20 #define _ERRNO_H
  21 #include <errnos.h>
  22
  23 ENTRY(syscall_error)
  24         /* If it was a syscall that got interrupted, but can
  25            be restarted, drop EINTR in.  */
  26         cmp %o0, ERESTART
  27         be,a notint
  28         mov EINTR, %o0
  29
  30 notint:
  31 #if defined (EWOULDBLOCK_sys) && EWOULDBLOCK_sys != EAGAIN
  32         /* We translate the system's EWOULDBLOCK error into EAGAIN.
  33            The GNU C library always defines EWOULDBLOCK==EAGAIN.
  34            EWOULDBLOCK_sys is the original number.  */
  35         cmp %o0, EWOULDBLOCK_sys
  36         be,a notblock
  37         mov EAGAIN, %o0
  38 #endif
  39
  40 notblock:/* Store it in errno... */
  41         sethi %hi(C_SYMBOL_NAME(errno)), %g1
  42         st %o0, [%g1 + %lo(C_SYMBOL_NAME(errno))]
  43
  44         /* And just kick back a -1.  */
  45         retl
  46         mov -1, %o0