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      1 /*	$NetBSD: linux_machdep.h,v 1.15 2024/10/01 16:35:42 riastradh Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2005 Emmanuel Dreyfus, all rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. All advertising materials mentioning features or use of this software
     15  *    must display the following acknowledgement:
     16  *	This product includes software developed by Emmanuel Dreyfus
     17  * 4. The name of the author may not be used to endorse or promote
     18  *    products derived from this software without specific prior written
     19  *    permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
     22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     23  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
     25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 #ifndef _AMD64_LINUX_MACHDEP_H
     35 #define _AMD64_LINUX_MACHDEP_H
     36 
     37 #define LINUX_STATFS_64BIT	/* Needed for full 64bit struct statfs */
     38 
     39 #include <compat/linux/common/linux_types.h>
     40 #include <compat/linux/common/linux_signal.h>
     41 #include <compat/linux/common/linux_siginfo.h>
     42 
     43 /* From <asm/sigcontext.h> */
     44 /* Matches the cpu's fxsave format */
     45 struct linux__fpstate {
     46 	u_int16_t cwd;
     47 	u_int16_t swd;
     48 	u_int16_t twd;
     49 	u_int16_t fop;
     50 	u_int64_t rip;
     51 	u_int64_t rdp;
     52 	u_int32_t mxcsr;
     53 	u_int32_t mxcsr_mask;
     54 	u_int32_t st_space[32];
     55 	u_int32_t xmm_space[64];
     56 	u_int32_t reserved2[24];
     57 };
     58 __CTASSERT(sizeof (struct linux__fpstate) == 512);
     59 
     60 /* From <asm/sigcontext.h> */
     61 struct linux_sigcontext {
     62 	u_int64_t r8;
     63 	u_int64_t r9;
     64 	u_int64_t r10;
     65 	u_int64_t r11;
     66 	u_int64_t r12;
     67 	u_int64_t r13;
     68 	u_int64_t r14;
     69 	u_int64_t r15;
     70 	u_int64_t rdi;
     71 	u_int64_t rsi;
     72 	u_int64_t rbp;
     73 	u_int64_t rbx;
     74 	u_int64_t rdx;
     75 	u_int64_t rax;
     76 	u_int64_t rcx;
     77 	u_int64_t rsp;
     78 	u_int64_t rip;
     79 	u_int64_t eflags;
     80 	u_int16_t cs;
     81 	u_int16_t gs;
     82 	u_int16_t fs;
     83 	u_int16_t pad0;
     84 	u_int64_t err;
     85 	u_int64_t trapno;
     86 	u_int64_t oldmask;
     87 	u_int64_t cr2;
     88 	struct linux__fpstate *fpstate;
     89 	u_int64_t reserved1[8];
     90 };
     91 
     92 /* From <asm/ucontext.h> */
     93 struct linux_ucontext {
     94 	u_int64_t luc_flags;
     95 	struct linux_ucontext *luc_link;
     96 	linux_stack_t luc_stack;
     97 	struct linux_sigcontext luc_mcontext;
     98 	linux_sigset_t luc_sigmask;
     99 };
    100 
    101 /* From linux/arch/x86_64/kernel/signal.c */
    102 struct linux_rt_sigframe {
    103 	char *pretcode;
    104 	struct linux_ucontext uc;
    105 	struct linux_siginfo info;
    106 };
    107 
    108 #ifdef _KERNEL
    109 __BEGIN_DECLS
    110 void linux_syscall_intern(struct proc *);
    111 __END_DECLS
    112 #endif /* !_KERNEL */
    113 
    114 #define LINUX_VSYSCALL_START	0xffffffffff600000
    115 #define LINUX_VSYSCALL_SIZE	1024
    116 #define LINUX_VSYSCALL_MAXNR	3
    117 
    118 #define LINUX_UNAME_ARCH MACHINE_ARCH
    119 #define LINUX_LARGEFILE64
    120 #define LINUX_IPC_FORCE64
    121 
    122 #define LINUX_LWP_SETPRIVATE	linux_lwp_setprivate
    123 
    124 /*
    125  * Used in ugly patch to fake device numbers.
    126  */
    127 /* Major device numbers for new style ptys. */
    128 #define LINUX_PTC_MAJOR                2
    129 #define LINUX_PTS_MAJOR                3
    130 /* Major device numbers of VT device on both Linux and NetBSD. */
    131 #define LINUX_CONS_MAJOR       4
    132 
    133 #endif /* _AMD64_LINUX_MACHDEP_H */
    134