xref: /xnu-8796.101.5/libsyscall/custom/__ptrace.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 Distributions	.globl	_errno
35*aca3beaaSApple OSS Distributions
36*aca3beaaSApple OSS DistributionsLEAF(___ptrace, 0)
37*aca3beaaSApple OSS Distributions	xorl	%eax,%eax
38*aca3beaaSApple OSS Distributions	REG_TO_EXTERN(%eax,_errno)
39*aca3beaaSApple OSS Distributions	UNIX_SYSCALL_NONAME(ptrace, 4, cerror)
40*aca3beaaSApple OSS Distributions	ret
41*aca3beaaSApple OSS Distributions
42*aca3beaaSApple OSS Distributions#elif defined(__x86_64__)
43*aca3beaaSApple OSS Distributions
44*aca3beaaSApple OSS Distributions	.globl	_errno
45*aca3beaaSApple OSS Distributions
46*aca3beaaSApple OSS DistributionsLEAF(___ptrace, 0)
47*aca3beaaSApple OSS Distributions	xorq	%rax,%rax
48*aca3beaaSApple OSS Distributions	PICIFY(_errno)
49*aca3beaaSApple OSS Distributions	movl	%eax,(%r11)
50*aca3beaaSApple OSS Distributions	UNIX_SYSCALL_NONAME(ptrace, 4, cerror)
51*aca3beaaSApple OSS Distributions	ret
52*aca3beaaSApple OSS Distributions	UNWIND_EPILOGUE
53*aca3beaaSApple OSS Distributions
54*aca3beaaSApple OSS Distributions#elif defined(__arm__)
55*aca3beaaSApple OSS Distributions
56*aca3beaaSApple OSS DistributionsMI_ENTRY_POINT(___ptrace)
57*aca3beaaSApple OSS Distributions	MI_GET_ADDRESS(ip,_errno)
58*aca3beaaSApple OSS Distributions	str	r8, [sp, #-4]!
59*aca3beaaSApple OSS Distributions	mov     r8, #0
60*aca3beaaSApple OSS Distributions	str     r8, [ip]
61*aca3beaaSApple OSS Distributions	ldr	r8, [sp], #4
62*aca3beaaSApple OSS Distributions	SYSCALL_NONAME(ptrace, 4, cerror)
63*aca3beaaSApple OSS Distributions	bx		lr
64*aca3beaaSApple OSS Distributions
65*aca3beaaSApple OSS Distributions#elif defined(__arm64__)
66*aca3beaaSApple OSS Distributions
67*aca3beaaSApple OSS DistributionsMI_ENTRY_POINT(___ptrace)
68*aca3beaaSApple OSS Distributions	MI_GET_ADDRESS(x9,_errno)
69*aca3beaaSApple OSS Distributions	str		wzr, [x9]
70*aca3beaaSApple OSS Distributions	SYSCALL_NONAME(ptrace, 4, cerror)
71*aca3beaaSApple OSS Distributions	ret
72*aca3beaaSApple OSS Distributions
73*aca3beaaSApple OSS Distributions#else
74*aca3beaaSApple OSS Distributions#error Unsupported architecture
75*aca3beaaSApple OSS Distributions#endif
76