xref: /src/sys/arch/arm/include/netbsd32_machdep.h

/*	$NetBSD: netbsd32_machdep.h,v 1.4 2021/11/06 20:42:56 thorpej Exp $	*/

/*-
 * Copyright (c) 2012 The NetBSD Foundation, Inc.
 * All rights reserved.
 *
 * This code is derived from software contributed to The NetBSD Foundation
 * by Matt Thomas <matt (at) 3am-software.com>.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _ARM_NETBSD32_H_
#define _ARM_NETBSD32_H_

#include <sys/types.h>

#ifdef __aarch64__
#error You have wandered from the path of righteousness.
#endif

#define	NETBSD32_POINTER_TYPE			uint32_t
typedef struct { NETBSD32_POINTER_TYPE i32; }	netbsd32_pointer_t;

#ifdef __ARM_EABI__
#define NETBSD32_INT64_ALIGN			__attribute__((__aligned__(4)))
#else
#define NETBSD32_INT64_ALIGN			__attribute__((__aligned__(8)))
#endif

typedef netbsd32_pointer_t			netbsd32_sigcontextp_t;

/* Support varying ABI names for netbsd32 */
#define	PROC_MACHINE_ARCH32(P)	((P)->p_md.md_march)

/*
 * The sigcode is ABI neutral.
 */
#define	netbsd32_sigcode			sigcode
#define	netbsd32_esigcode			esigcode

/*
 * Using the entirety of COMPAT_NETBSD32 to support the OABI was
 * a gigantic mistake, but here we are.
 */
#define	__HAVE_MD_NETBSD32_SENDSIG

/*
 * Note: syscall_intern and setregs do not care about COMPAT_NETBSD32.
 */
#define	netbsd32_syscall_intern			syscall_intern
#define	netbsd32_setregs			setregs

#define	VM_MAXUSER_ADDRESS32	VM_MAXUSER_ADDRESS
#define	NETBSD32_MID_MACHINE	MID_MACHINE
#define	USRSTACK32		USRSTACK
#define	MAXTSIZ32		MAXTSIZ
#define	DFLDSIZ32		DFLDSIZ
#define	MAXDSIZ32		MAXDSIZ
#define	DFLSSIZ32		DFLSSIZ
#define	MAXSSIZ32		MAXSSIZ

#endif /* _ARM_NETBSD32_H_ */