xref: /xnu-8796.121.2/libsyscall/custom/__pipe.s (revision c54f35ca767986246321eb901baf8f5ff7923f6a)
1*c54f35caSApple OSS Distributions/*
2*c54f35caSApple OSS Distributions * Copyright (c) 1999-2007 Apple Inc. All rights reserved.
3*c54f35caSApple OSS Distributions *
4*c54f35caSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*c54f35caSApple OSS Distributions *
6*c54f35caSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*c54f35caSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*c54f35caSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*c54f35caSApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*c54f35caSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*c54f35caSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*c54f35caSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*c54f35caSApple OSS Distributions * terms of an Apple operating system software license agreement.
14*c54f35caSApple OSS Distributions *
15*c54f35caSApple OSS Distributions * Please obtain a copy of the License at
16*c54f35caSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*c54f35caSApple OSS Distributions *
18*c54f35caSApple OSS Distributions * The Original Code and all software distributed under the License are
19*c54f35caSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*c54f35caSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*c54f35caSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*c54f35caSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*c54f35caSApple OSS Distributions * Please see the License for the specific language governing rights and
24*c54f35caSApple OSS Distributions * limitations under the License.
25*c54f35caSApple OSS Distributions *
26*c54f35caSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*c54f35caSApple OSS Distributions */
28*c54f35caSApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc.  All rights reserved. */
29*c54f35caSApple OSS Distributions
30*c54f35caSApple OSS Distributions#include "SYS.h"
31*c54f35caSApple OSS Distributions
32*c54f35caSApple OSS Distributions#if defined(__i386__)
33*c54f35caSApple OSS Distributions
34*c54f35caSApple OSS DistributionsPSEUDO_INT(___pipe, pipe, 0)
35*c54f35caSApple OSS Distributions	movl	4(%esp),%ecx
36*c54f35caSApple OSS Distributions	movl	%eax,(%ecx)
37*c54f35caSApple OSS Distributions	movl	%edx,4(%ecx)
38*c54f35caSApple OSS Distributions	xorl	%eax,%eax
39*c54f35caSApple OSS Distributions	ret
40*c54f35caSApple OSS Distributions
41*c54f35caSApple OSS Distributions#elif defined(__x86_64__)
42*c54f35caSApple OSS Distributions
43*c54f35caSApple OSS DistributionsPSEUDO(___pipe, pipe, 0, cerror_nocancel)
44*c54f35caSApple OSS Distributions	movl	%eax, (%rdi)
45*c54f35caSApple OSS Distributions	movl	%edx, 4(%rdi)
46*c54f35caSApple OSS Distributions	xorl	%eax, %eax
47*c54f35caSApple OSS Distributions	ret
48*c54f35caSApple OSS Distributions	UNWIND_EPILOGUE
49*c54f35caSApple OSS Distributions
50*c54f35caSApple OSS Distributions#elif defined(__arm__)
51*c54f35caSApple OSS Distributions
52*c54f35caSApple OSS DistributionsMI_ENTRY_POINT(___pipe)
53*c54f35caSApple OSS Distributions	mov		r3,r0              // save fildes across syscall
54*c54f35caSApple OSS Distributions	SYSCALL_NONAME(pipe, 0, cerror_nocancel)
55*c54f35caSApple OSS Distributions	str     r0, [r3, #0]
56*c54f35caSApple OSS Distributions	str     r1, [r3, #4]
57*c54f35caSApple OSS Distributions	mov		r0,#0
58*c54f35caSApple OSS Distributions	bx		lr
59*c54f35caSApple OSS Distributions
60*c54f35caSApple OSS Distributions#elif defined(__arm64__)
61*c54f35caSApple OSS Distributions
62*c54f35caSApple OSS DistributionsMI_ENTRY_POINT(___pipe)
63*c54f35caSApple OSS Distributions	mov		x9, x0				// Stash FD array
64*c54f35caSApple OSS Distributions	SYSCALL_NONAME(pipe, 0, cerror_nocancel)
65*c54f35caSApple OSS Distributions	stp		w0, w1, [x9]		// Save results
66*c54f35caSApple OSS Distributions	mov		x0, #0				// Success
67*c54f35caSApple OSS Distributions	ret							// Done
68*c54f35caSApple OSS Distributions
69*c54f35caSApple OSS Distributions#else
70*c54f35caSApple OSS Distributions#error Unsupported architecture
71*c54f35caSApple OSS Distributions#endif
72