xref: /xnu-11215.81.4/libsyscall/custom/__ptrace.s (revision d4514f0bc1d3f944c22d92e68b646ac3fb40d452)
1*d4514f0bSApple OSS Distributions/*
2*d4514f0bSApple OSS Distributions * Copyright (c) 1999-2007 Apple Inc. All rights reserved.
3*d4514f0bSApple OSS Distributions *
4*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*d4514f0bSApple OSS Distributions *
6*d4514f0bSApple OSS Distributions * This file contains Original Code and/or Modifications of Original Code
7*d4514f0bSApple OSS Distributions * as defined in and that are subject to the Apple Public Source License
8*d4514f0bSApple OSS Distributions * Version 2.0 (the 'License'). You may not use this file except in
9*d4514f0bSApple OSS Distributions * compliance with the License. The rights granted to you under the License
10*d4514f0bSApple OSS Distributions * may not be used to create, or enable the creation or redistribution of,
11*d4514f0bSApple OSS Distributions * unlawful or unlicensed copies of an Apple operating system, or to
12*d4514f0bSApple OSS Distributions * circumvent, violate, or enable the circumvention or violation of, any
13*d4514f0bSApple OSS Distributions * terms of an Apple operating system software license agreement.
14*d4514f0bSApple OSS Distributions *
15*d4514f0bSApple OSS Distributions * Please obtain a copy of the License at
16*d4514f0bSApple OSS Distributions * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*d4514f0bSApple OSS Distributions *
18*d4514f0bSApple OSS Distributions * The Original Code and all software distributed under the License are
19*d4514f0bSApple OSS Distributions * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*d4514f0bSApple OSS Distributions * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*d4514f0bSApple OSS Distributions * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*d4514f0bSApple OSS Distributions * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*d4514f0bSApple OSS Distributions * Please see the License for the specific language governing rights and
24*d4514f0bSApple OSS Distributions * limitations under the License.
25*d4514f0bSApple OSS Distributions *
26*d4514f0bSApple OSS Distributions * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*d4514f0bSApple OSS Distributions */
28*d4514f0bSApple OSS Distributions/* Copyright (c) 1992 NeXT Computer, Inc.  All rights reserved. */
29*d4514f0bSApple OSS Distributions
30*d4514f0bSApple OSS Distributions#include "SYS.h"
31*d4514f0bSApple OSS Distributions
32*d4514f0bSApple OSS Distributions#if defined(__i386__)
33*d4514f0bSApple OSS Distributions
34*d4514f0bSApple OSS Distributions	.globl	_errno
35*d4514f0bSApple OSS Distributions
36*d4514f0bSApple OSS DistributionsLEAF(___ptrace, 0)
37*d4514f0bSApple OSS Distributions	xorl	%eax,%eax
38*d4514f0bSApple OSS Distributions	REG_TO_EXTERN(%eax,_errno)
39*d4514f0bSApple OSS Distributions	UNIX_SYSCALL_NONAME(ptrace, 4, cerror)
40*d4514f0bSApple OSS Distributions	ret
41*d4514f0bSApple OSS Distributions
42*d4514f0bSApple OSS Distributions#elif defined(__x86_64__)
43*d4514f0bSApple OSS Distributions
44*d4514f0bSApple OSS Distributions	.globl	_errno
45*d4514f0bSApple OSS Distributions
46*d4514f0bSApple OSS DistributionsLEAF(___ptrace, 0)
47*d4514f0bSApple OSS Distributions	xorq	%rax,%rax
48*d4514f0bSApple OSS Distributions	PICIFY(_errno)
49*d4514f0bSApple OSS Distributions	movl	%eax,(%r11)
50*d4514f0bSApple OSS Distributions	UNIX_SYSCALL_NONAME(ptrace, 4, cerror)
51*d4514f0bSApple OSS Distributions	ret
52*d4514f0bSApple OSS Distributions	UNWIND_EPILOGUE
53*d4514f0bSApple OSS Distributions
54*d4514f0bSApple OSS Distributions#elif defined(__arm__)
55*d4514f0bSApple OSS Distributions
56*d4514f0bSApple OSS DistributionsMI_ENTRY_POINT(___ptrace)
57*d4514f0bSApple OSS Distributions	MI_GET_ADDRESS(ip,_errno)
58*d4514f0bSApple OSS Distributions	str	r8, [sp, #-4]!
59*d4514f0bSApple OSS Distributions	mov     r8, #0
60*d4514f0bSApple OSS Distributions	str     r8, [ip]
61*d4514f0bSApple OSS Distributions	ldr	r8, [sp], #4
62*d4514f0bSApple OSS Distributions	SYSCALL_NONAME(ptrace, 4, cerror)
63*d4514f0bSApple OSS Distributions	bx		lr
64*d4514f0bSApple OSS Distributions
65*d4514f0bSApple OSS Distributions#elif defined(__arm64__)
66*d4514f0bSApple OSS Distributions
67*d4514f0bSApple OSS DistributionsMI_ENTRY_POINT(___ptrace)
68*d4514f0bSApple OSS Distributions	MI_GET_ADDRESS(x9,_errno)
69*d4514f0bSApple OSS Distributions	str		wzr, [x9]
70*d4514f0bSApple OSS Distributions	SYSCALL_NONAME(ptrace, 4, cerror)
71*d4514f0bSApple OSS Distributions	ret
72*d4514f0bSApple OSS Distributions
73*d4514f0bSApple OSS Distributions#else
74*d4514f0bSApple OSS Distributions#error Unsupported architecture
75*d4514f0bSApple OSS Distributions#endif
76