xref: /netbsd-src/sys/arch/arm/include/netbsd32_machdep.h (revision 3758c7a856ac957fce1bfc439a40b51e6420706e)
1 /*	$NetBSD: netbsd32_machdep.h,v 1.4 2021/11/06 20:42:56 thorpej Exp $	*/
2 
3 /*-
4  * Copyright (c) 2012 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Matt Thomas <matt@3am-software.com>.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #ifndef _ARM_NETBSD32_H_
33 #define _ARM_NETBSD32_H_
34 
35 #include <sys/types.h>
36 
37 #ifdef __aarch64__
38 #error You have wandered from the path of righteousness.
39 #endif
40 
41 #define	NETBSD32_POINTER_TYPE			uint32_t
42 typedef struct { NETBSD32_POINTER_TYPE i32; }	netbsd32_pointer_t;
43 
44 #ifdef __ARM_EABI__
45 #define NETBSD32_INT64_ALIGN			__attribute__((__aligned__(4)))
46 #else
47 #define NETBSD32_INT64_ALIGN			__attribute__((__aligned__(8)))
48 #endif
49 
50 typedef netbsd32_pointer_t			netbsd32_sigcontextp_t;
51 
52 /* Support varying ABI names for netbsd32 */
53 #define	PROC_MACHINE_ARCH32(P)	((P)->p_md.md_march)
54 
55 /*
56  * The sigcode is ABI neutral.
57  */
58 #define	netbsd32_sigcode			sigcode
59 #define	netbsd32_esigcode			esigcode
60 
61 /*
62  * Using the entirety of COMPAT_NETBSD32 to support the OABI was
63  * a gigantic mistake, but here we are.
64  */
65 #define	__HAVE_MD_NETBSD32_SENDSIG
66 
67 /*
68  * Note: syscall_intern and setregs do not care about COMPAT_NETBSD32.
69  */
70 #define	netbsd32_syscall_intern			syscall_intern
71 #define	netbsd32_setregs			setregs
72 
73 #define	VM_MAXUSER_ADDRESS32	VM_MAXUSER_ADDRESS
74 #define	NETBSD32_MID_MACHINE	MID_MACHINE
75 #define	USRSTACK32		USRSTACK
76 #define	MAXTSIZ32		MAXTSIZ
77 #define	DFLDSIZ32		DFLDSIZ
78 #define	MAXDSIZ32		MAXDSIZ
79 #define	DFLSSIZ32		DFLSSIZ
80 #define	MAXSSIZ32		MAXSSIZ
81 
82 #endif /* _ARM_NETBSD32_H_ */
83