xref: /xnu-8796.101.5/libsyscall/custom/__pipe.s (revision aca3beaa3dfbd42498b42c5e5ce20a938e6554e5)
1*aca3beaaSApple OSS Distributions/*
2*aca3beaaSApple OSS Distributions * Copyright (c) 1999-2007 Apple Inc. All rights reserved.
3*aca3beaaSApple OSS Distributions *
4*aca3beaaSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*aca3beaaSApple OSS Distributions *
6*aca3beaaSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*aca3beaaSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*aca3beaaSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*aca3beaaSApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*aca3beaaSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*aca3beaaSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*aca3beaaSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*aca3beaaSApple OSS Distributions * terms of an Apple operating system software license agreement.
14*aca3beaaSApple OSS Distributions *
15*aca3beaaSApple OSS Distributions * Please obtain a copy of the License at
16*aca3beaaSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*aca3beaaSApple OSS Distributions *
18*aca3beaaSApple OSS Distributions * The Original Code and all software distributed under the License are
19*aca3beaaSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*aca3beaaSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*aca3beaaSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*aca3beaaSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*aca3beaaSApple OSS Distributions * Please see the License for the specific language governing rights and
24*aca3beaaSApple OSS Distributions * limitations under the License.
25*aca3beaaSApple OSS Distributions *
26*aca3beaaSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*aca3beaaSApple OSS Distributions */
28*aca3beaaSApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc.  All rights reserved. */
29*aca3beaaSApple OSS Distributions
30*aca3beaaSApple OSS Distributions#include "SYS.h"
31*aca3beaaSApple OSS Distributions
32*aca3beaaSApple OSS Distributions#if defined(__i386__)
33*aca3beaaSApple OSS Distributions
34*aca3beaaSApple OSS DistributionsPSEUDO_INT(___pipe, pipe, 0)
35*aca3beaaSApple OSS Distributions	movl	4(%esp),%ecx
36*aca3beaaSApple OSS Distributions	movl	%eax,(%ecx)
37*aca3beaaSApple OSS Distributions	movl	%edx,4(%ecx)
38*aca3beaaSApple OSS Distributions	xorl	%eax,%eax
39*aca3beaaSApple OSS Distributions	ret
40*aca3beaaSApple OSS Distributions
41*aca3beaaSApple OSS Distributions#elif defined(__x86_64__)
42*aca3beaaSApple OSS Distributions
43*aca3beaaSApple OSS DistributionsPSEUDO(___pipe, pipe, 0, cerror_nocancel)
44*aca3beaaSApple OSS Distributions	movl	%eax, (%rdi)
45*aca3beaaSApple OSS Distributions	movl	%edx, 4(%rdi)
46*aca3beaaSApple OSS Distributions	xorl	%eax, %eax
47*aca3beaaSApple OSS Distributions	ret
48*aca3beaaSApple OSS Distributions	UNWIND_EPILOGUE
49*aca3beaaSApple OSS Distributions
50*aca3beaaSApple OSS Distributions#elif defined(__arm__)
51*aca3beaaSApple OSS Distributions
52*aca3beaaSApple OSS DistributionsMI_ENTRY_POINT(___pipe)
53*aca3beaaSApple OSS Distributions	mov		r3,r0              // save fildes across syscall
54*aca3beaaSApple OSS Distributions	SYSCALL_NONAME(pipe, 0, cerror_nocancel)
55*aca3beaaSApple OSS Distributions	str     r0, [r3, #0]
56*aca3beaaSApple OSS Distributions	str     r1, [r3, #4]
57*aca3beaaSApple OSS Distributions	mov		r0,#0
58*aca3beaaSApple OSS Distributions	bx		lr
59*aca3beaaSApple OSS Distributions
60*aca3beaaSApple OSS Distributions#elif defined(__arm64__)
61*aca3beaaSApple OSS Distributions
62*aca3beaaSApple OSS DistributionsMI_ENTRY_POINT(___pipe)
63*aca3beaaSApple OSS Distributions	mov		x9, x0				// Stash FD array
64*aca3beaaSApple OSS Distributions	SYSCALL_NONAME(pipe, 0, cerror_nocancel)
65*aca3beaaSApple OSS Distributions	stp		w0, w1, [x9]		// Save results
66*aca3beaaSApple OSS Distributions	mov		x0, #0				// Success
67*aca3beaaSApple OSS Distributions	ret							// Done
68*aca3beaaSApple OSS Distributions
69*aca3beaaSApple OSS Distributions#else
70*aca3beaaSApple OSS Distributions#error Unsupported architecture
71*aca3beaaSApple OSS Distributions#endif
72