xref: /xnu-11417.140.69/libsyscall/custom/__pipe.s (revision 43a90889846e00bfb5cf1d255cdc0a701a1e05a4)
1*43a90889SApple OSS Distributions/*
2*43a90889SApple OSS Distributions * Copyright (c) 1999-2007 Apple Inc. All rights reserved.
3*43a90889SApple OSS Distributions *
4*43a90889SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*43a90889SApple OSS Distributions *
6*43a90889SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*43a90889SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*43a90889SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*43a90889SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*43a90889SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*43a90889SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*43a90889SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*43a90889SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*43a90889SApple OSS Distributions *
15*43a90889SApple OSS Distributions * Please obtain a copy of the License at
16*43a90889SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*43a90889SApple OSS Distributions *
18*43a90889SApple OSS Distributions * The Original Code and all software distributed under the License are
19*43a90889SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*43a90889SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*43a90889SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*43a90889SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*43a90889SApple OSS Distributions * Please see the License for the specific language governing rights and
24*43a90889SApple OSS Distributions * limitations under the License.
25*43a90889SApple OSS Distributions *
26*43a90889SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*43a90889SApple OSS Distributions */
28*43a90889SApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc.  All rights reserved. */
29*43a90889SApple OSS Distributions
30*43a90889SApple OSS Distributions#include "SYS.h"
31*43a90889SApple OSS Distributions
32*43a90889SApple OSS Distributions#if defined(__i386__)
33*43a90889SApple OSS Distributions
34*43a90889SApple OSS DistributionsPSEUDO_INT(___pipe, pipe, 0)
35*43a90889SApple OSS Distributions	movl	4(%esp),%ecx
36*43a90889SApple OSS Distributions	movl	%eax,(%ecx)
37*43a90889SApple OSS Distributions	movl	%edx,4(%ecx)
38*43a90889SApple OSS Distributions	xorl	%eax,%eax
39*43a90889SApple OSS Distributions	ret
40*43a90889SApple OSS Distributions
41*43a90889SApple OSS Distributions#elif defined(__x86_64__)
42*43a90889SApple OSS Distributions
43*43a90889SApple OSS DistributionsPSEUDO(___pipe, pipe, 0, cerror_nocancel)
44*43a90889SApple OSS Distributions	movl	%eax, (%rdi)
45*43a90889SApple OSS Distributions	movl	%edx, 4(%rdi)
46*43a90889SApple OSS Distributions	xorl	%eax, %eax
47*43a90889SApple OSS Distributions	ret
48*43a90889SApple OSS Distributions	UNWIND_EPILOGUE
49*43a90889SApple OSS Distributions
50*43a90889SApple OSS Distributions#elif defined(__arm__)
51*43a90889SApple OSS Distributions
52*43a90889SApple OSS DistributionsMI_ENTRY_POINT(___pipe)
53*43a90889SApple OSS Distributions	mov		r3,r0              // save fildes across syscall
54*43a90889SApple OSS Distributions	SYSCALL_NONAME(pipe, 0, cerror_nocancel)
55*43a90889SApple OSS Distributions	str     r0, [r3, #0]
56*43a90889SApple OSS Distributions	str     r1, [r3, #4]
57*43a90889SApple OSS Distributions	mov		r0,#0
58*43a90889SApple OSS Distributions	bx		lr
59*43a90889SApple OSS Distributions
60*43a90889SApple OSS Distributions#elif defined(__arm64__)
61*43a90889SApple OSS Distributions
62*43a90889SApple OSS DistributionsMI_ENTRY_POINT(___pipe)
63*43a90889SApple OSS Distributions	mov		x9, x0				// Stash FD array
64*43a90889SApple OSS Distributions	SYSCALL_NONAME(pipe, 0, cerror_nocancel)
65*43a90889SApple OSS Distributions	stp		w0, w1, [x9]		// Save results
66*43a90889SApple OSS Distributions	mov		x0, #0				// Success
67*43a90889SApple OSS Distributions	ret							// Done
68*43a90889SApple OSS Distributions
69*43a90889SApple OSS Distributions#else
70*43a90889SApple OSS Distributions#error Unsupported architecture
71*43a90889SApple OSS Distributions#endif
72