1 /* $NetBSD: linux_machdep.h,v 1.10 2005/11/11 23:22:08 chs 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_types.h> 43 #include <compat/linux/common/linux_signal.h> 44 #include <compat/linux/common/linux_siginfo.h> 45 46 /* 47 * The Linux sigcontext, pretty much a standard alpha trapframe. 48 */ 49 struct linux_sigcontext { 50 long sc_onstack; 51 long sc_mask; 52 long sc_pc; 53 long sc_ps; 54 long sc_regs[32]; 55 long sc_ownedfp; 56 long sc_fpregs[32]; 57 unsigned long sc_fpcr; 58 unsigned long sc_fp_control; 59 unsigned long sc_reserved1, sc_reserved2; 60 unsigned long sc_ssize; 61 char * sc_sbase; 62 unsigned long sc_traparg_a0; 63 unsigned long sc_traparg_a1; 64 unsigned long sc_traparg_a2; 65 unsigned long sc_fp_trap_pc; 66 unsigned long sc_fp_trigger_sum; 67 unsigned long sc_fp_trigger_inst; 68 }; 69 70 struct linux_ucontext { 71 u_long uc_flags; 72 struct linux_ucontext *uc_link; 73 linux_old_sigset_t uc_osf_sigmask; 74 linux_stack_t uc_stack; 75 struct linux_sigcontext uc_mcontext; 76 linux_sigset_t uc_sigmask; 77 }; 78 79 /* 80 * We make the stack look like Linux expects it when calling a signal 81 * handler, but use the BSD way of calling the handler and sigreturn(). 82 */ 83 84 #define LINUX_INSN_MOV_R30_R16 0x47fe0410 85 #define LINUX_INSN_LDI_R0 0x201f0000 86 #define LINUX_INSN_CALLSYS 0x00000083 87 88 struct linux_sigframe { 89 struct linux_sigcontext sf_sc; 90 unsigned long extramask[LINUX__NSIG_WORDS-1]; 91 unsigned int retcode[3]; 92 }; 93 94 struct linux_rt_sigframe { 95 struct linux_siginfo info; 96 struct linux_ucontext uc; 97 unsigned int retcode[3]; 98 }; 99 100 #ifdef _KERNEL 101 __BEGIN_DECLS 102 void setup_linux_rt_sigframe(struct trapframe *, int, const sigset_t *); 103 void setup_linux_sigframe(struct trapframe *, int, const sigset_t *); 104 int linux_restore_sigcontext(struct lwp *, struct linux_sigcontext, 105 sigset_t *); 106 void linux_syscall_intern(struct proc *); 107 __END_DECLS 108 #endif /* !_KERNEL */ 109 110 #endif /* _ALPHA_LINUX_MACHDEP_H */ 111