sysdeps/unix/sysv/linux/sparc/sparc32/vfork.S

   1 /* Copyright (C) 2004-2019 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>, 2004.
   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, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <sysdep.h>
  20 #include <tcb-offsets.h>
  21
  22         .text
  23         .globl          __syscall_error
  24 ENTRY(__libc_vfork)
  25         LOADSYSCALL(vfork)
  26         ta      0x10
  27         bcc     2f
  28          mov    %o7, %g1
  29         call    __syscall_error
  30          mov    %g1, %o7
  31 2:      sub     %o1, 1, %o1
  32         andcc   %o0, %o1, %o0
  33 1:      retl
  34          nop
  35 END(__libc_vfork)
  36
  37 #if IS_IN (libc)
  38 weak_alias (__libc_vfork, vfork)
  39 strong_alias (__libc_vfork, __vfork)
  40 libc_hidden_def (__vfork)
  41 #endif