linux_machdep.h revision 1.36
1 /* $NetBSD: linux_machdep.h,v 1.36 2008/11/12 12:36:10 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 1995, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Frank van der Linden. 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 _I386_LINUX_MACHDEP_H 33 #define _I386_LINUX_MACHDEP_H 34 35 #include <compat/linux/common/linux_types.h> 36 #include <compat/linux/common/linux_signal.h> 37 #include <compat/linux/common/linux_siginfo.h> 38 39 /* 40 * The Linux sigcontext, pretty much a standard 386 trapframe. 41 */ 42 struct linux_fpreg { 43 uint16_t mant[4]; 44 uint16_t expo; 45 }; 46 47 struct linux_fpxreg { 48 uint16_t mant[4]; 49 uint16_t expo; 50 uint16_t pad[3]; 51 }; 52 53 struct linux_xmmreg { 54 uint32_t reg[4]; 55 }; 56 57 struct linux_fpstate { 58 uint32_t cw; 59 uint32_t sw; 60 uint32_t tag; 61 uint32_t ipoff; 62 uint32_t cssel; 63 uint32_t dataoff; 64 uint32_t datasel; 65 struct linux_fpreg st[8]; 66 uint16_t status; 67 uint16_t magic; 68 uint32_t fxsr_env[6]; 69 uint32_t mxcsr; 70 uint32_t reserved; 71 struct linux_fpxreg fxsr_st[8]; 72 struct linux_xmmreg xmm[8]; 73 uint32_t padding[56]; 74 }; 75 76 77 struct linux_sigcontext { 78 int sc_gs; 79 int sc_fs; 80 int sc_es; 81 int sc_ds; 82 int sc_edi; 83 int sc_esi; 84 int sc_ebp; 85 int sc_esp; 86 int sc_ebx; 87 int sc_edx; 88 int sc_ecx; 89 int sc_eax; 90 int sc_trapno; 91 int sc_err; 92 int sc_eip; 93 int sc_cs; 94 int sc_eflags; 95 int sc_esp_at_signal; 96 int sc_ss; 97 struct linux_fpstate *sc_387; 98 /* XXX check this */ 99 linux_old_sigset_t sc_mask; 100 int sc_cr2; 101 }; 102 103 struct linux_libc_fpreg { 104 unsigned short significand[4]; 105 unsigned short exponent; 106 }; 107 108 struct linux_libc_fpstate { 109 unsigned long cw; 110 unsigned long sw; 111 unsigned long tag; 112 unsigned long ipoff; 113 unsigned long cssel; 114 unsigned long dataoff; 115 unsigned long datasel; 116 struct linux_libc_fpreg _st[8]; 117 unsigned long status; 118 }; 119 120 struct linux_ucontext { 121 unsigned long uc_flags; 122 struct ucontext *uc_link; 123 struct linux_sigaltstack uc_stack; 124 struct linux_sigcontext uc_mcontext; 125 linux_sigset_t uc_sigmask; 126 struct linux_libc_fpstate uc_fpregs_mem; 127 }; 128 129 /* 130 * We make the stack look like Linux expects it when calling a signal 131 * handler, but use the BSD way of calling the handler and sigreturn(). 132 * This means that we need to pass the pointer to the handler too. 133 * It is appended to the frame to not interfere with the rest of it. 134 */ 135 struct linux_rt_sigframe { 136 int sf_sig; 137 struct linux_siginfo *sf_sip; 138 struct linux_ucontext *sf_ucp; 139 struct linux_siginfo sf_si; 140 struct linux_ucontext sf_uc; 141 sig_t sf_handler; 142 }; 143 144 struct linux_sigframe { 145 int sf_sig; 146 struct linux_sigcontext sf_sc; 147 sig_t sf_handler; 148 }; 149 150 struct linux_user_desc { 151 unsigned int entry_number; 152 unsigned int base_addr; 153 unsigned int limit; 154 unsigned int seg_32bit:1; 155 unsigned int contents:2; 156 unsigned int read_exec_only:1; 157 unsigned int limit_in_pages:1; 158 unsigned int seg_not_present:1; 159 unsigned int useable:1; 160 }; 161 162 struct linux_desc_struct { 163 unsigned long a, b; 164 }; 165 166 167 #define LINUX_LOWERWORD 0x0000ffff 168 169 #define LINUX_GLIBC_TLS_SEL 6 170 171 /* 172 * Macros which does the same thing as those in Linux include/asm-um/ldt-i386.h. 173 * These convert Linux user space descriptor to machine one. 174 */ 175 #define LINUX_LDT_entry_a(info) \ 176 ((((info)->base_addr & LINUX_LOWERWORD) << 16) | \ 177 ((info)->limit & LINUX_LOWERWORD)) 178 179 #define LINUX_ENTRY_B_READ_EXEC_ONLY 9 180 #define LINUX_ENTRY_B_CONTENTS 10 181 #define LINUX_ENTRY_B_SEG_NOT_PRESENT 15 182 #define LINUX_ENTRY_B_BASE_ADDR 16 183 #define LINUX_ENTRY_B_USEABLE 20 184 #define LINUX_ENTRY_B_SEG32BIT 22 185 #define LINUX_ENTRY_B_LIMIT 23 186 187 #define LINUX_LDT_entry_b(info) \ 188 (((info)->base_addr & 0xff000000) | \ 189 ((info)->limit & 0xf0000) | \ 190 ((info)->contents << LINUX_ENTRY_B_CONTENTS) | \ 191 (((info)->seg_not_present == 0) << LINUX_ENTRY_B_SEG_NOT_PRESENT) |\ 192 (((info)->base_addr & 0x00ff0000) >> LINUX_ENTRY_B_BASE_ADDR) | \ 193 (((info)->read_exec_only == 0) << LINUX_ENTRY_B_READ_EXEC_ONLY) |\ 194 ((info)->seg_32bit << LINUX_ENTRY_B_SEG32BIT) | \ 195 ((info)->useable << LINUX_ENTRY_B_USEABLE) | \ 196 ((info)->limit_in_pages << LINUX_ENTRY_B_LIMIT) | 0x7000) 197 198 #define LINUX_LDT_empty(info) \ 199 ((info)->base_addr == 0 && \ 200 (info)->limit == 0 && \ 201 (info)->contents == 0 && \ 202 (info)->seg_not_present == 1 && \ 203 (info)->read_exec_only == 1 && \ 204 (info)->seg_32bit == 0 && \ 205 (info)->limit_in_pages == 0 && \ 206 (info)->useable == 0) 207 208 /* 209 * Macros for converting segments. 210 * They do the same as those in arch/i386/kernel/process.c in Linux. 211 */ 212 #define LINUX_GET_BASE(desc) \ 213 ((((desc)->a >> 16) & LINUX_LOWERWORD) | \ 214 (((desc)->b << 16) & 0x00ff0000) | \ 215 ((desc)->b & 0xff000000)) 216 217 #define LINUX_GET_LIMIT(desc) \ 218 (((desc)->a & LINUX_LOWERWORD) | \ 219 ((desc)->b & 0xf0000)) 220 221 #define LINUX_GET_32BIT(desc) \ 222 (((desc)->b >> LINUX_ENTRY_B_SEG32BIT) & 1) 223 #define LINUX_GET_CONTENTS(desc) \ 224 (((desc)->b >> LINUX_ENTRY_B_CONTENTS) & 3) 225 #define LINUX_GET_WRITABLE(desc) \ 226 (((desc)->b >> LINUX_ENTRY_B_READ_EXEC_ONLY) & 1) 227 #define LINUX_GET_LIMIT_PAGES(desc) \ 228 (((desc)->b >> LINUX_ENTRY_B_LIMIT) & 1) 229 #define LINUX_GET_PRESENT(desc) \ 230 (((desc)->b >> LINUX_ENTRY_B_SEG_NOT_PRESENT) & 1) 231 #define LINUX_GET_USEABLE(desc) \ 232 (((desc)->b >> LINUX_ENTRY_B_USEABLE) & 1) 233 234 /* 235 * Used in ugly patch to fake device numbers. 236 */ 237 /* Major device numbers for new style ptys. */ 238 #define LINUX_PTC_MAJOR 2 239 #define LINUX_PTS_MAJOR 3 240 /* Major device numbers of VT device on both Linux and NetBSD. */ 241 #define LINUX_CONS_MAJOR 4 242 243 /* 244 * Linux ioctl calls for the keyboard. 245 */ 246 #define LINUX_KDGKBMODE 0x4b44 247 #define LINUX_KDSKBMODE 0x4b45 248 #define LINUX_KDMKTONE 0x4b30 249 #define LINUX_KDSETMODE 0x4b3a 250 #define LINUX_KDGETMODE 0x4b3b 251 #define LINUX_KDENABIO 0x4b36 252 #define LINUX_KDDISABIO 0x4b37 253 #define LINUX_KDGETLED 0x4b31 254 #define LINUX_KDSETLED 0x4b32 255 #define LINUX_KDGKBTYPE 0x4b33 256 #define LINUX_KDGKBENT 0x4b46 257 #define LINUX_KIOCSOUND 0x4b2f 258 259 /* 260 * Mode for KDSKBMODE which we don't have (we just use plain mode for this) 261 */ 262 #define LINUX_K_MEDIUMRAW 2 263 264 /* 265 * VT ioctl calls in Linux (the ones that the pcvt emulation in wscons can handle) 266 */ 267 #define LINUX_VT_OPENQRY 0x5600 268 #define LINUX_VT_GETMODE 0x5601 269 #define LINUX_VT_SETMODE 0x5602 270 #define LINUX_VT_GETSTATE 0x5603 271 #define LINUX_VT_RELDISP 0x5605 272 #define LINUX_VT_ACTIVATE 0x5606 273 #define LINUX_VT_WAITACTIVE 0x5607 274 #define LINUX_VT_DISALLOCATE 0x5608 275 276 /* 277 * This range used by VMWare (XXX) 278 */ 279 #define LINUX_VMWARE_NONE 200 280 #define LINUX_VMWARE_LAST 237 281 282 /* 283 * Range of ioctls to just pass on, so that modules (like VMWare) can 284 * handle them. 285 */ 286 #define LINUX_IOCTL_MIN_PASS LINUX_VMWARE_NONE 287 #define LINUX_IOCTL_MAX_PASS (LINUX_VMWARE_LAST+8) 288 289 #define LINUX_UNAME_ARCH linux_get_uname_arch() 290 #define LINUX_NPTL 291 292 #ifdef _KERNEL 293 __BEGIN_DECLS 294 void linux_syscall_intern(struct proc *); 295 const char *linux_get_uname_arch(void); 296 __END_DECLS 297 #endif /* !_KERNEL */ 298 299 #endif /* _I386_LINUX_MACHDEP_H */ 300
Indexes created Mon Sep 29 03:10:08 GMT 2025