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      1 /*	$NetBSD: linux32_machdep.h,v 1.1 2021/11/25 03:08:04 ryo Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2021 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Ryo Shimizu.
      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 _AARCH64_LINUX32_MACHDEP_H_
     33 #define _AARCH64_LINUX32_MACHDEP_H_
     34 
     35 #include <compat/linux32/arch/aarch64/linux32_missing.h>
     36 #include <compat/linux32/arch/aarch64/linux32_siginfo.h>
     37 #include <compat/linux32/arch/aarch64/linux32_signal.h>
     38 
     39 struct linux32_sigcontext {
     40 	uint32_t trap_no;
     41 	uint32_t error_code;
     42 	uint32_t oldmask;
     43 	uint32_t arm_r0;
     44 	uint32_t arm_r1;
     45 	uint32_t arm_r2;
     46 	uint32_t arm_r3;
     47 	uint32_t arm_r4;
     48 	uint32_t arm_r5;
     49 	uint32_t arm_r6;
     50 	uint32_t arm_r7;
     51 	uint32_t arm_r8;
     52 	uint32_t arm_r9;
     53 	uint32_t arm_r10;
     54 	uint32_t arm_fp;
     55 	uint32_t arm_ip;
     56 	uint32_t arm_sp;
     57 	uint32_t arm_lr;
     58 	uint32_t arm_pc;
     59 	uint32_t arm_cpsr;
     60 	uint32_t fault_address;
     61 };
     62 
     63 struct linux32_user_vfp {
     64 	uint64_t fpregs[32];
     65 	uint32_t fpscr;
     66 };
     67 
     68 struct linux32_user_vfp_exc {
     69 	uint32_t fpexc;
     70 	uint32_t fpinst;
     71 	uint32_t fpinst2;
     72 };
     73 
     74 struct linux32_vfp_sigframe {
     75 	uint32_t magic;
     76 	uint32_t size;
     77 	struct linux32_user_vfp ufp;
     78 	struct linux32_user_vfp_exc ufp_exc;
     79 } __aligned(8);
     80 
     81 struct linux32_aux_sigframe {
     82 	/* struct iwmmxt_sigframe iwmmxt; */	/* XXX: not supported */
     83 	struct linux32_vfp_sigframe vfp;
     84 	uint32_t end_magic;
     85 } __aligned(8);
     86 
     87 struct linux32_ucontext {
     88 	uint32_t luc_flags;
     89 	struct linux32_ucontext *luc_link;
     90 	linux32_stack_t luc_stack;
     91 	struct linux32_sigcontext luc_mcontext;
     92 
     93 	linux32_sigset_t luc_sigmask;
     94 	int luc__unused[32 - (sizeof(linux32_sigset_t) / sizeof(int))];
     95 
     96 	uint32_t luc_regspace[128] __aligned(8);
     97 };
     98 
     99 struct linux32_sigframe {
    100 	struct linux32_ucontext uc;
    101 	uint32_t retcode[4];
    102 };
    103 
    104 struct linux32_rt_sigframe {
    105 	struct linux32_siginfo info;
    106 	struct linux32_sigframe sig;
    107 };
    108 
    109 #undef LINUX_UNAME_ARCH
    110 #define LINUX_UNAME_ARCH	"armv7l"
    111 
    112 #ifdef _KERNEL
    113 __BEGIN_DECLS
    114 void linux32_syscall_intern(struct proc *);
    115 __END_DECLS
    116 #endif /* !_KERNEL */
    117 
    118 #endif /* _AARCH64_LINUX32_MACHDEP_H_ */
    119