1 /* $NetBSD: linux_machdep.h,v 1.6 2002/02/15 16:47:58 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Eric Haszlakiewicz. 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _ALPHA_LINUX_MACHDEP_H 40 #define _ALPHA_LINUX_MACHDEP_H 41 42 #include <compat/linux/common/linux_signal.h> 43 44 /* 45 * The Linux sigcontext, pretty much a standard alpha trapframe. 46 */ 47 struct linux_sigcontext { 48 long sc_onstack; 49 long sc_mask; 50 long sc_pc; 51 long sc_ps; 52 long sc_regs[32]; 53 long sc_ownedfp; 54 long sc_fpregs[32]; 55 unsigned long sc_fpcr; 56 unsigned long sc_fp_control; 57 unsigned long sc_reserved1, sc_reserved2; 58 unsigned long sc_ssize; 59 char * sc_sbase; 60 unsigned long sc_traparg_a0; 61 unsigned long sc_traparg_a1; 62 unsigned long sc_traparg_a2; 63 unsigned long sc_fp_trap_pc; 64 unsigned long sc_fp_trigger_sum; 65 unsigned long sc_fp_trigger_inst; 66 }; 67 68 struct linux_ucontext { 69 u_long uc_flags; 70 struct linux_ucontext *uc_link; 71 linux_old_sigset_t uc_osf_sigmask; 72 linux_stack_t uc_stack; 73 struct linux_sigcontext uc_mcontext; 74 linux_sigset_t uc_sigmask; 75 }; 76 77 /* 78 * We make the stack look like Linux expects it when calling a signal 79 * handler, but use the BSD way of calling the handler and sigreturn(). 80 */ 81 82 #define LINUX_INSN_MOV_R30_R16 0x47fe0410 83 #define LINUX_INSN_LDI_R0 0x201f0000 84 #define LINUX_INSN_CALLSYS 0x00000083 85 86 struct linux_sigframe { 87 struct linux_sigcontext sf_sc; 88 unsigned long extramask[LINUX__NSIG_WORDS-1]; 89 unsigned int retcode[3]; 90 }; 91 92 struct linux_rt_sigframe { 93 struct linux_siginfo info; 94 struct linux_ucontext uc; 95 unsigned int retcode[3]; 96 }; 97 98 #ifdef _KERNEL 99 __BEGIN_DECLS 100 void setup_linux_rt_sigframe __P((struct trapframe *, int, sigset_t *)); 101 void setup_linux_sigframe __P((struct trapframe *, int, sigset_t *)); 102 int linux_restore_sigcontext __P((struct proc *, struct linux_sigcontext, 103 sigset_t *)); 104 void linux_syscall_intern __P((struct proc *)); 105 __END_DECLS 106 #endif /* !_KERNEL */ 107 108 #endif /* _ALPHA_LINUX_MACHDEP_H */ 109