linux_machdep.h revision 1.1.2.3
1 1.1.2.3 bouyer /* $NetBSD: linux_machdep.h,v 1.1.2.3 2001/04/21 17:46:18 bouyer Exp $ */ 2 1.1.2.2 bouyer 3 1.1.2.2 bouyer /*- 4 1.1.2.2 bouyer * Copyright (c) 1995, 2000, 2001 The NetBSD Foundation, Inc. 5 1.1.2.2 bouyer * All rights reserved. 6 1.1.2.2 bouyer * 7 1.1.2.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.1.2.2 bouyer * by Frank van der Linden and Emmanuel Dreyfus. 9 1.1.2.2 bouyer * 10 1.1.2.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.1.2.2 bouyer * modification, are permitted provided that the following conditions 12 1.1.2.2 bouyer * are met: 13 1.1.2.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.1.2.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.1.2.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.1.2.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.1.2.2 bouyer * 3. All advertising materials mentioning features or use of this software 19 1.1.2.2 bouyer * must display the following acknowledgement: 20 1.1.2.2 bouyer * This product includes software developed by the NetBSD 21 1.1.2.2 bouyer * Foundation, Inc. and its contributors. 22 1.1.2.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.1.2.2 bouyer * contributors may be used to endorse or promote products derived 24 1.1.2.2 bouyer * from this software without specific prior written permission. 25 1.1.2.2 bouyer * 26 1.1.2.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.1.2.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.1.2.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.1.2.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.1.2.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.1.2.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.1.2.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.1.2.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.1.2.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.1.2.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.1.2.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 37 1.1.2.2 bouyer */ 38 1.1.2.2 bouyer 39 1.1.2.2 bouyer #ifndef _POWERPC_LINUX_MACHDEP_H 40 1.1.2.2 bouyer #define _POWERPC_LINUX_MACHDEP_H 41 1.1.2.2 bouyer 42 1.1.2.2 bouyer #include <compat/linux/common/linux_signal.h> 43 1.1.2.2 bouyer /* 44 1.1.2.2 bouyer * From Linux's include/asm-ppc/ptrace.h 45 1.1.2.2 bouyer * Needed for sigcontext 46 1.1.2.2 bouyer */ 47 1.1.2.2 bouyer struct linux_pt_regs { 48 1.1.2.2 bouyer unsigned long lgpr[32]; 49 1.1.2.2 bouyer unsigned long lnip; 50 1.1.2.2 bouyer unsigned long lmsr; 51 1.1.2.2 bouyer unsigned long lorig_gpr3; /* Used for restarting system calls */ 52 1.1.2.2 bouyer unsigned long lctr; 53 1.1.2.2 bouyer unsigned long llink; 54 1.1.2.2 bouyer unsigned long lxer; 55 1.1.2.2 bouyer unsigned long lccr; 56 1.1.2.2 bouyer unsigned long lmq; /* 601 only (not used at present) */ 57 1.1.2.2 bouyer /* Used on APUS to hold IPL value. */ 58 1.1.2.2 bouyer unsigned long ltrap; /* Reason for being here */ 59 1.1.2.2 bouyer unsigned long ldar; /* Fault registers */ 60 1.1.2.2 bouyer unsigned long ldsisr; 61 1.1.2.2 bouyer unsigned long lresult; /* Result of a system call */ 62 1.1.2.2 bouyer }; 63 1.1.2.2 bouyer 64 1.1.2.2 bouyer /* 65 1.1.2.2 bouyer * From Linux's include/asm-ppc/sigcontext.h 66 1.1.2.2 bouyer * Linux/ppc calls that struct sigcontect_struct 67 1.1.2.2 bouyer */ 68 1.1.2.2 bouyer struct linux_sigcontext { 69 1.1.2.2 bouyer unsigned long _unused[4]; 70 1.1.2.2 bouyer int lsignal; 71 1.1.2.2 bouyer unsigned long lhandler; 72 1.1.2.2 bouyer unsigned long lmask; 73 1.1.2.2 bouyer struct linux_pt_regs *lregs; 74 1.1.2.2 bouyer }; 75 1.1.2.2 bouyer 76 1.1.2.2 bouyer /* 77 1.1.2.2 bouyer * From Linux's include/asm-ppc/elf.h 78 1.1.2.2 bouyer */ 79 1.1.2.2 bouyer #define LINUX_ELF_NGREG 48 /* includes nip, msr, lr, etc. */ 80 1.1.2.2 bouyer #define LINUX_ELF_NFPREG 33 /* includes fpscr */ 81 1.1.2.2 bouyer typedef unsigned long linux_elf_greg_t; 82 1.1.2.2 bouyer typedef linux_elf_greg_t linux_elf_gregset_t[LINUX_ELF_NGREG]; 83 1.1.2.2 bouyer 84 1.1.2.2 bouyer /* 85 1.1.2.2 bouyer * From Linux's include/asm-ppc/ptrace.h 86 1.1.2.2 bouyer */ 87 1.1.2.2 bouyer #define LINUX__SIGNAL_FRAMESIZE 64 88 1.1.2.2 bouyer 89 1.1.2.2 bouyer /* 90 1.1.2.2 bouyer * We make the stack look like Linux expects it when calling a signal 91 1.1.2.2 bouyer * handler, but use the BSD way of calling the handler and sigreturn(). 92 1.1.2.2 bouyer * This means that we need to pass the pointer to the handler too. 93 1.1.2.2 bouyer * It is appended to the frame to not interfere with the rest of it. 94 1.1.2.2 bouyer * 95 1.1.2.2 bouyer * The following is from Linux's arch/ppc/kern/signal.c: 96 1.1.2.2 bouyer * 97 1.1.2.2 bouyer * > When we have signals to deliver, we set up on the 98 1.1.2.2 bouyer * > user stack, going down from the original stack pointer: 99 1.1.2.2 bouyer * > a sigregs struct 100 1.1.2.2 bouyer * > one or more sigcontext structs with 101 1.1.2.2 bouyer * > a gap of LINUX__SIGNAL_FRAMESIZE bytes 102 1.1.2.2 bouyer * > 103 1.1.2.2 bouyer * > Each of these things must be a multiple of 16 bytes in size. 104 1.1.2.2 bouyer * 105 1.1.2.2 bouyer * linux_sigregs is a linux_sigframe on other Linux ports. Linux/PowerPC 106 1.1.2.2 bouyer * defines a rt_sigframe struct, but it is only used for RT signals. for 107 1.1.2.2 bouyer * non RT signals, struct sigregs is used instead. 108 1.1.2.2 bouyer * 109 1.1.2.2 bouyer * About the ltramp filed: that trampoline code is not used. Instead, the 110 1.1.2.2 bouyer * sigcode (7 bytes long) trampoline code, copied by exec() on program startup 111 1.1.2.2 bouyer * is used. However, Linux binaries might expect it to be here. 112 1.1.2.2 bouyer */ 113 1.1.2.2 bouyer struct linux_sigregs { 114 1.1.2.2 bouyer linux_elf_gregset_t lgp_regs; 115 1.1.2.2 bouyer double lfp_regs[LINUX_ELF_NFPREG]; 116 1.1.2.2 bouyer unsigned long ltramp[2]; 117 1.1.2.2 bouyer /* 118 1.1.2.2 bouyer * Programs using the rs6000/xcoff abi can save up to 19 gp regs 119 1.1.2.2 bouyer * and 18 fp regs below sp before decrementing it. 120 1.1.2.2 bouyer */ 121 1.1.2.2 bouyer int labigap[56]; 122 1.1.2.2 bouyer }; 123 1.1.2.2 bouyer 124 1.1.2.2 bouyer /* 125 1.1.2.2 bouyer * The following is not from Linux, we define it for convenience. It is the 126 1.1.2.2 bouyer * size of the abigap field of linux_sigregs. 127 1.1.2.2 bouyer */ 128 1.1.2.2 bouyer #define LINUX_ABIGAP (56*sizeof(int)) 129 1.1.2.2 bouyer 130 1.1.2.2 bouyer /* 131 1.1.2.2 bouyer * linux sigframe in a nutshell (however we don't use it): 132 1.1.2.2 bouyer * 133 1.1.2.2 bouyer * struct linux_sigframe { 134 1.1.2.2 bouyer * char _gap[LINUX__SIGNAL_FRAMESIZE]; 135 1.1.2.2 bouyer * struct sigcontext lsc; 136 1.1.2.3 bouyer * struct linux_sigregs lsg; 137 1.1.2.2 bouyer * }; 138 1.1.2.2 bouyer */ 139 1.1.2.2 bouyer 140 1.1.2.2 bouyer /* 141 1.1.2.2 bouyer * From Linux's include/asm-ppc/ucontext.h 142 1.1.2.2 bouyer */ 143 1.1.2.2 bouyer struct linux_ucontext { 144 1.1.2.2 bouyer unsigned long luc_flags; 145 1.1.2.2 bouyer struct linux_ucontext *luc_link; 146 1.1.2.2 bouyer linux_stack_t luc_stack; 147 1.1.2.2 bouyer struct linux_sigcontext luc_context; 148 1.1.2.2 bouyer linux_sigset_t luc_sigmask; /* mask last for extensibility */ 149 1.1.2.2 bouyer }; 150 1.1.2.2 bouyer 151 1.1.2.2 bouyer /* 152 1.1.2.2 bouyer * From Linux's arch/ppc/kernel/signal.c, the real rt_sigframe 153 1.1.2.2 bouyer */ 154 1.1.2.2 bouyer struct linux_rt_sigframe 155 1.1.2.2 bouyer { 156 1.1.2.2 bouyer unsigned long _unused[2]; 157 1.1.2.2 bouyer struct linux_siginfo *lpinfo; 158 1.1.2.2 bouyer void *lpuc; 159 1.1.2.2 bouyer struct linux_siginfo linfo; 160 1.1.2.2 bouyer struct linux_ucontext luc; 161 1.1.2.2 bouyer }; 162 1.1.2.2 bouyer 163 1.1.2.2 bouyer #ifdef _KERNEL 164 1.1.2.2 bouyer __BEGIN_DECLS 165 1.1.2.2 bouyer void linux_sendsig __P((sig_t, int, sigset_t *, u_long)); 166 1.1.2.2 bouyer dev_t linux_fakedev __P((dev_t)); 167 1.1.2.2 bouyer __END_DECLS 168 1.1.2.2 bouyer #endif /* _KERNEL */ 169 1.1.2.2 bouyer 170 1.1.2.2 bouyer /* 171 1.1.2.2 bouyer * Major device numbers of VT device on both Linux and NetBSD. Used in 172 1.1.2.2 bouyer * ugly patch to fake device numbers. 173 1.1.2.2 bouyer * 174 1.1.2.2 bouyer * LINUX_CONS_MAJOR is from Linux's include/linux/major.h 175 1.1.2.2 bouyer */ 176 1.1.2.2 bouyer #define LINUX_CONS_MAJOR 4 177 1.1.2.2 bouyer #define NETBSD_WSCONS_MAJOR 47 178 1.1.2.2 bouyer 179 1.1.2.2 bouyer /* 180 1.1.2.2 bouyer * Linux ioctl calls for the keyboard. 181 1.1.2.2 bouyer * 182 1.1.2.2 bouyer * From Linux's include/linux/kd.h 183 1.1.2.2 bouyer */ 184 1.1.2.2 bouyer #define LINUX_KDGKBMODE 0x4b44 185 1.1.2.2 bouyer #define LINUX_KDSKBMODE 0x4b45 186 1.1.2.2 bouyer #define LINUX_KDMKTONE 0x4b30 187 1.1.2.2 bouyer #define LINUX_KDSETMODE 0x4b3a 188 1.1.2.2 bouyer #define LINUX_KDENABIO 0x4b36 189 1.1.2.2 bouyer #define LINUX_KDDISABIO 0x4b37 190 1.1.2.2 bouyer #define LINUX_KDGETLED 0x4b31 191 1.1.2.2 bouyer #define LINUX_KDSETLED 0x4b32 192 1.1.2.2 bouyer #define LINUX_KDGKBTYPE 0x4B33 193 1.1.2.2 bouyer #define LINUX_KDGKBENT 0x4B46 194 1.1.2.2 bouyer 195 1.1.2.2 bouyer /* 196 1.1.2.2 bouyer * Mode for KDSKBMODE which we don't have (we just use plain mode for this) 197 1.1.2.2 bouyer * 198 1.1.2.2 bouyer * From Linux's include/linux/kd.h 199 1.1.2.2 bouyer */ 200 1.1.2.2 bouyer #define LINUX_K_MEDIUMRAW 2 201 1.1.2.2 bouyer 202 1.1.2.2 bouyer /* 203 1.1.2.2 bouyer * VT ioctl calls in Linux (the ones that the pcvt emulation in 204 1.1.2.2 bouyer * wscons can handle) 205 1.1.2.2 bouyer * 206 1.1.2.2 bouyer * From Linux's include/linux/vt.h 207 1.1.2.2 bouyer */ 208 1.1.2.2 bouyer #define LINUX_VT_OPENQRY 0x5600 209 1.1.2.2 bouyer #define LINUX_VT_GETMODE 0x5601 210 1.1.2.2 bouyer #define LINUX_VT_SETMODE 0x5602 211 1.1.2.2 bouyer #define LINUX_VT_GETSTATE 0x5603 212 1.1.2.2 bouyer #define LINUX_VT_RELDISP 0x5605 213 1.1.2.2 bouyer #define LINUX_VT_ACTIVATE 0x5606 214 1.1.2.2 bouyer #define LINUX_VT_WAITACTIVE 0x5607 215 1.1.2.2 bouyer #define LINUX_VT_DISALLOCATE 0x5608 216 1.1.2.2 bouyer 217 1.1.2.2 bouyer /* 218 1.1.2.2 bouyer * This range used by VMWare (XXX) 219 1.1.2.2 bouyer * 220 1.1.2.2 bouyer * From Linux's include/linux/vt.h 221 1.1.2.2 bouyer * XXX It's not sure this s needed for powerpc 222 1.1.2.2 bouyer */ 223 1.1.2.2 bouyer #define LINUX_VMWARE_NONE 200 224 1.1.2.2 bouyer #define LINUX_VMWARE_LAST 237 225 1.1.2.2 bouyer 226 1.1.2.2 bouyer /* 227 1.1.2.2 bouyer * Range of ioctls to just pass on, so that LKMs (like VMWare) can 228 1.1.2.2 bouyer * handle them. 229 1.1.2.2 bouyer * 230 1.1.2.2 bouyer * From Linux's include/linux/vt.h 231 1.1.2.2 bouyer */ 232 1.1.2.2 bouyer #define LINUX_IOCTL_MIN_PASS LINUX_VMWARE_NONE 233 1.1.2.2 bouyer #define LINUX_IOCTL_MAX_PASS (LINUX_VMWARE_LAST+8) 234 1.1.2.2 bouyer 235 1.1.2.2 bouyer #ifdef _KERNEL 236 1.1.2.2 bouyer __BEGIN_DECLS /* XXX from NetBSD/i386. Not arch dependent? */ 237 1.1.2.2 bouyer void linux_syscall_intern __P((struct proc *)); 238 1.1.2.2 bouyer __END_DECLS 239 1.1.2.2 bouyer #endif /* !_KERNEL */ 240 1.1.2.2 bouyer 241 1.1.2.2 bouyer #endif /* _POWERPC_LINUX_MACHDEP_H */ 242
Indexes created Tue Sep 30 20:09:53 GMT 2025