xref: /xnu-8792.41.9/libsyscall/custom/__ptrace.s (revision 5c2921b07a2480ab43ec66f5b9e41cb872bc554f)
1*5c2921b0SApple OSS Distributions/*
2*5c2921b0SApple OSS Distributions * Copyright (c) 1999-2007 Apple Inc. All rights reserved.
3*5c2921b0SApple OSS Distributions *
4*5c2921b0SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*5c2921b0SApple OSS Distributions *
6*5c2921b0SApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*5c2921b0SApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*5c2921b0SApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*5c2921b0SApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*5c2921b0SApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*5c2921b0SApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*5c2921b0SApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*5c2921b0SApple OSS Distributions * terms of an Apple operating system software license agreement.
14*5c2921b0SApple OSS Distributions *
15*5c2921b0SApple OSS Distributions * Please obtain a copy of the License at
16*5c2921b0SApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*5c2921b0SApple OSS Distributions *
18*5c2921b0SApple OSS Distributions * The Original Code and all software distributed under the License are
19*5c2921b0SApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*5c2921b0SApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*5c2921b0SApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*5c2921b0SApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*5c2921b0SApple OSS Distributions * Please see the License for the specific language governing rights and
24*5c2921b0SApple OSS Distributions * limitations under the License.
25*5c2921b0SApple OSS Distributions *
26*5c2921b0SApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*5c2921b0SApple OSS Distributions */
28*5c2921b0SApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc.  All rights reserved. */
29*5c2921b0SApple OSS Distributions
30*5c2921b0SApple OSS Distributions#include "SYS.h"
31*5c2921b0SApple OSS Distributions
32*5c2921b0SApple OSS Distributions#if defined(__i386__)
33*5c2921b0SApple OSS Distributions
34*5c2921b0SApple OSS Distributions	.globl	_errno
35*5c2921b0SApple OSS Distributions
36*5c2921b0SApple OSS DistributionsLEAF(___ptrace, 0)
37*5c2921b0SApple OSS Distributions	xorl	%eax,%eax
38*5c2921b0SApple OSS Distributions	REG_TO_EXTERN(%eax,_errno)
39*5c2921b0SApple OSS Distributions	UNIX_SYSCALL_NONAME(ptrace, 4, cerror)
40*5c2921b0SApple OSS Distributions	ret
41*5c2921b0SApple OSS Distributions
42*5c2921b0SApple OSS Distributions#elif defined(__x86_64__)
43*5c2921b0SApple OSS Distributions
44*5c2921b0SApple OSS Distributions	.globl	_errno
45*5c2921b0SApple OSS Distributions
46*5c2921b0SApple OSS DistributionsLEAF(___ptrace, 0)
47*5c2921b0SApple OSS Distributions	xorq	%rax,%rax
48*5c2921b0SApple OSS Distributions	PICIFY(_errno)
49*5c2921b0SApple OSS Distributions	movl	%eax,(%r11)
50*5c2921b0SApple OSS Distributions	UNIX_SYSCALL_NONAME(ptrace, 4, cerror)
51*5c2921b0SApple OSS Distributions	ret
52*5c2921b0SApple OSS Distributions	UNWIND_EPILOGUE
53*5c2921b0SApple OSS Distributions
54*5c2921b0SApple OSS Distributions#elif defined(__arm__)
55*5c2921b0SApple OSS Distributions
56*5c2921b0SApple OSS DistributionsMI_ENTRY_POINT(___ptrace)
57*5c2921b0SApple OSS Distributions	MI_GET_ADDRESS(ip,_errno)
58*5c2921b0SApple OSS Distributions	str	r8, [sp, #-4]!
59*5c2921b0SApple OSS Distributions	mov     r8, #0
60*5c2921b0SApple OSS Distributions	str     r8, [ip]
61*5c2921b0SApple OSS Distributions	ldr	r8, [sp], #4
62*5c2921b0SApple OSS Distributions	SYSCALL_NONAME(ptrace, 4, cerror)
63*5c2921b0SApple OSS Distributions	bx		lr
64*5c2921b0SApple OSS Distributions
65*5c2921b0SApple OSS Distributions#elif defined(__arm64__)
66*5c2921b0SApple OSS Distributions
67*5c2921b0SApple OSS DistributionsMI_ENTRY_POINT(___ptrace)
68*5c2921b0SApple OSS Distributions	MI_GET_ADDRESS(x9,_errno)
69*5c2921b0SApple OSS Distributions	str		wzr, [x9]
70*5c2921b0SApple OSS Distributions	SYSCALL_NONAME(ptrace, 4, cerror)
71*5c2921b0SApple OSS Distributions	ret
72*5c2921b0SApple OSS Distributions
73*5c2921b0SApple OSS Distributions#else
74*5c2921b0SApple OSS Distributions#error Unsupported architecture
75*5c2921b0SApple OSS Distributions#endif
76