/*      $NetBSD: linux32_machdep.h,v 1.1 2021/11/25 03:08:04 ryo Exp $  */

/*-
* Copyright (c) 2021 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ryo Shimizu.
*
* 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 _AARCH64_LINUX32_MACHDEP_H_
#define _AARCH64_LINUX32_MACHDEP_H_

#include <compat/linux32/arch/aarch64/linux32_missing.h>
#include <compat/linux32/arch/aarch64/linux32_siginfo.h>
#include <compat/linux32/arch/aarch64/linux32_signal.h>

struct linux32_sigcontext {
       uint32_t trap_no;
       uint32_t error_code;
       uint32_t oldmask;
       uint32_t arm_r0;
       uint32_t arm_r1;
       uint32_t arm_r2;
       uint32_t arm_r3;
       uint32_t arm_r4;
       uint32_t arm_r5;
       uint32_t arm_r6;
       uint32_t arm_r7;
       uint32_t arm_r8;
       uint32_t arm_r9;
       uint32_t arm_r10;
       uint32_t arm_fp;
       uint32_t arm_ip;
       uint32_t arm_sp;
       uint32_t arm_lr;
       uint32_t arm_pc;
       uint32_t arm_cpsr;
       uint32_t fault_address;
};

struct linux32_user_vfp {
       uint64_t fpregs[32];
       uint32_t fpscr;
};

struct linux32_user_vfp_exc {
       uint32_t fpexc;
       uint32_t fpinst;
       uint32_t fpinst2;
};

struct linux32_vfp_sigframe {
       uint32_t magic;
       uint32_t size;
       struct linux32_user_vfp ufp;
       struct linux32_user_vfp_exc ufp_exc;
} __aligned(8);

struct linux32_aux_sigframe {
       /* struct iwmmxt_sigframe iwmmxt; */    /* XXX: not supported */
       struct linux32_vfp_sigframe vfp;
       uint32_t end_magic;
} __aligned(8);

struct linux32_ucontext {
       uint32_t luc_flags;
       struct linux32_ucontext *luc_link;
       linux32_stack_t luc_stack;
       struct linux32_sigcontext luc_mcontext;

       linux32_sigset_t luc_sigmask;
       int luc__unused[32 - (sizeof(linux32_sigset_t) / sizeof(int))];

       uint32_t luc_regspace[128] __aligned(8);
};

struct linux32_sigframe {
       struct linux32_ucontext uc;
       uint32_t retcode[4];
};

struct linux32_rt_sigframe {
       struct linux32_siginfo info;
       struct linux32_sigframe sig;
};

#undef LINUX_UNAME_ARCH
#define LINUX_UNAME_ARCH        "armv7l"

#ifdef _KERNEL
__BEGIN_DECLS
void linux32_syscall_intern(struct proc *);
__END_DECLS
#endif /* !_KERNEL */

#endif /* _AARCH64_LINUX32_MACHDEP_H_ */