linuxthreads/sysdeps/unix/sysv/linux/sparc/fork.h

   1 /* Copyright (C) 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>, 2002.
   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
  22 #define ARCH_FORK() \
  23 ({                                                                      \
  24   register long __o0 __asm__ ("o0");                                    \
  25   register long __o1 __asm__ ("o1");                                    \
  26   register long __g1 __asm__ ("g1") = __NR_fork;                        \
  27   __asm __volatile (__SYSCALL_STRING                                    \
  28                     : "=r" (__g1), "=r" (__o0), "=r" (__o1)             \
  29                     : "0" (__g1)                                        \
  30                     : __SYSCALL_CLOBBERS);                              \
  31   __o0 == -1 ? __o0 : (__o0 & (__o1 - 1));                              \
  32 })
  33
  34 #include_next <fork.h>