sysdeps/unix/sysv/linux/ia64/pipe.S

   1 /* Copyright (C) 1999-2016 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by David Mosberger <davidm@hpl.hp.com>
   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 /* __pipe is a special syscall since it returns two values.  */
  20
  21 #include <sysdep.h>
  22
  23 ENTRY(__pipe)
  24        .regstk 1,0,0,0
  25        DO_CALL (SYS_ify (pipe))
  26        cmp.ne p6,p0=-1,r10
  27        ;;
  28 (p6)   st4 [in0]=r8,4
  29 (p6)   mov ret0=0
  30        ;;
  31 (p6)   st4 [in0]=r9
  32 (p6)   ret
  33        br.cond.spnt.few __syscall_error
  34 PSEUDO_END(__pipe)
  35
  36 libc_hidden_def (__pipe)
  37 weak_alias (__pipe, pipe)