1 /* $NetBSD: linux_machdep.h,v 1.3 2021/11/30 01:52:06 ryo Exp $ */ 2 3 /*- 4 * Copyright (c) 2021 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 17 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 18 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 26 * POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef _AARCH64_LINUX_MACHDEP_H 30 #define _AARCH64_LINUX_MACHDEP_H 31 32 #include <aarch64/reg.h> 33 #include <compat/linux/common/linux_types.h> 34 #include <compat/linux/common/linux_signal.h> 35 #include <compat/linux/common/linux_siginfo.h> 36 37 /* from $LINUXSRC/arch/arm64/include/uapi/asm/sigcontext.h */ 38 struct linux_aarch64_ctx { 39 uint32_t magic; 40 uint32_t size; 41 }; 42 43 #define FPSIMD_MAGIC 0x46508001 44 struct fpsimd_context { 45 struct linux_aarch64_ctx head; 46 uint32_t fpsr; 47 uint32_t fpcr; 48 union fpelem vregs[32]; 49 }; 50 51 /* from $LINUXSRC/arch/arm64/include/uapi/asm/sigcontext.h */ 52 struct linux_sigcontext { 53 uint64_t fault_address; 54 uint64_t regs[31]; 55 uint64_t sp; 56 uint64_t pc; 57 uint64_t pstate; 58 uint8_t __reserved[4096] __attribute__((__aligned__(16))); 59 }; 60 61 /* from $LINUXSRC/arch/arm64/include/uapi/asm/ucontext.h */ 62 struct linux_ucontext { 63 unsigned long luc_flags; 64 struct linux_ucontext *luc_link; 65 linux_stack_t luc_stack; 66 linux_sigset_t luc_sigmask; 67 uint8_t __reserved[1024 / 8 - sizeof(linux_sigset_t)]; 68 struct linux_sigcontext luc_mcontext; 69 }; 70 71 /* from $LINUXSRC/arch/arm64/kernel/signal.c */ 72 struct linux_rt_sigframe { 73 struct linux_siginfo info; 74 struct linux_ucontext uc; 75 }; 76 77 /* 78 * Not required for COMPAT_LINUX, 79 * but required for COMPAT_LINUX32. 80 */ 81 struct linux_sys_open_args { 82 syscallarg(const char *) path; 83 syscallarg(int) flags; 84 syscallarg(linux_umode_t) mode; 85 }; 86 int linux_sys_open(struct lwp *, const struct linux_sys_open_args *, register_t *); 87 88 struct linux_sys_eventfd_args { 89 syscallarg(unsigned int) initval; 90 }; 91 int linux_sys_eventfd(struct lwp *, const struct linux_sys_eventfd_args *, register_t *); 92 93 struct linux_sys_llseek_args { 94 syscallarg(int) fd; 95 syscallarg(u_int32_t) ohigh; 96 syscallarg(u_int32_t) olow; 97 syscallarg(void *) res; 98 syscallarg(int) whence; 99 }; 100 int linux_sys_llseek(struct lwp *, const struct linux_sys_llseek_args *, register_t *); 101 102 struct linux_sys_unlink_args { 103 syscallarg(const char *) path; 104 }; 105 int linux_sys_unlink(struct lwp *, const struct linux_sys_unlink_args *, register_t *); 106 107 struct linux_sys_mknod_args { 108 syscallarg(const char *) path; 109 syscallarg(linux_umode_t) mode; 110 syscallarg(unsigned) dev; 111 }; 112 int linux_sys_mknod(struct lwp *, const struct linux_sys_mknod_args *, register_t *); 113 114 struct linux_sys_alarm_args { 115 syscallarg(unsigned int) secs; 116 }; 117 int linux_sys_alarm(struct lwp *, const struct linux_sys_alarm_args *, register_t *); 118 119 int linux_sys_pause(struct lwp *, const void *, register_t *); 120 121 #ifdef _KERNEL 122 __BEGIN_DECLS 123 void linux_syscall_intern(struct proc *); 124 __END_DECLS 125 #endif /* !_KERNEL */ 126 127 #if BYTE_ORDER != BIG_ENDIAN 128 #define LINUX_UNAME_ARCH "aarch64" 129 #else 130 #define LINUX_UNAME_ARCH "aarch64_be" 131 #endif 132 #define LINUX_LARGEFILE64 133 134 #endif /* !_AARCH64_LINUX_MACHDEP_H */ 135