xref: /xnu-8796.121.2/libsyscall/custom/__ptrace.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 Distributions	.globl	_errno
35*c54f35caSApple OSS Distributions
36*c54f35caSApple OSS DistributionsLEAF(___ptrace, 0)
37*c54f35caSApple OSS Distributions	xorl	%eax,%eax
38*c54f35caSApple OSS Distributions	REG_TO_EXTERN(%eax,_errno)
39*c54f35caSApple OSS Distributions	UNIX_SYSCALL_NONAME(ptrace, 4, cerror)
40*c54f35caSApple OSS Distributions	ret
41*c54f35caSApple OSS Distributions
42*c54f35caSApple OSS Distributions#elif defined(__x86_64__)
43*c54f35caSApple OSS Distributions
44*c54f35caSApple OSS Distributions	.globl	_errno
45*c54f35caSApple OSS Distributions
46*c54f35caSApple OSS DistributionsLEAF(___ptrace, 0)
47*c54f35caSApple OSS Distributions	xorq	%rax,%rax
48*c54f35caSApple OSS Distributions	PICIFY(_errno)
49*c54f35caSApple OSS Distributions	movl	%eax,(%r11)
50*c54f35caSApple OSS Distributions	UNIX_SYSCALL_NONAME(ptrace, 4, cerror)
51*c54f35caSApple OSS Distributions	ret
52*c54f35caSApple OSS Distributions	UNWIND_EPILOGUE
53*c54f35caSApple OSS Distributions
54*c54f35caSApple OSS Distributions#elif defined(__arm__)
55*c54f35caSApple OSS Distributions
56*c54f35caSApple OSS DistributionsMI_ENTRY_POINT(___ptrace)
57*c54f35caSApple OSS Distributions	MI_GET_ADDRESS(ip,_errno)
58*c54f35caSApple OSS Distributions	str	r8, [sp, #-4]!
59*c54f35caSApple OSS Distributions	mov     r8, #0
60*c54f35caSApple OSS Distributions	str     r8, [ip]
61*c54f35caSApple OSS Distributions	ldr	r8, [sp], #4
62*c54f35caSApple OSS Distributions	SYSCALL_NONAME(ptrace, 4, cerror)
63*c54f35caSApple OSS Distributions	bx		lr
64*c54f35caSApple OSS Distributions
65*c54f35caSApple OSS Distributions#elif defined(__arm64__)
66*c54f35caSApple OSS Distributions
67*c54f35caSApple OSS DistributionsMI_ENTRY_POINT(___ptrace)
68*c54f35caSApple OSS Distributions	MI_GET_ADDRESS(x9,_errno)
69*c54f35caSApple OSS Distributions	str		wzr, [x9]
70*c54f35caSApple OSS Distributions	SYSCALL_NONAME(ptrace, 4, cerror)
71*c54f35caSApple OSS Distributions	ret
72*c54f35caSApple OSS Distributions
73*c54f35caSApple OSS Distributions#else
74*c54f35caSApple OSS Distributions#error Unsupported architecture
75*c54f35caSApple OSS Distributions#endif
76