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      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 (at) 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