1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
/* Copyright (C) 1993, 1995, 1997, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by David Mosberger (davidm@cs.arizona.edu).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <features.h>
#include <sys/syscall.h>
#include <sys/regdef.h>
#include <asm/pal.h>
/* __pipe is a special syscall since it returns two values. */
.globl pipe
.align 4
.ent pipe, 0
pipe:
.frame sp, 0, ra
ldgp gp,0(pv)
.prologue 1
lda v0, __NR_pipe
call_pal PAL_callsys
bne a3, $syscall_error
stl r0, 0(a0)
stl r1, 4(a0)
mov zero, v0
ret
$syscall_error:
jmp zero,__syscall_error
.end pipe
libc_hidden_def (pipe)
|