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      1  1.12     njoly /*	$NetBSD: linux_machdep.h,v 1.12 2011/11/21 22:00:42 njoly Exp $	*/
      2   1.1       erh 
      3   1.1       erh /*-
      4   1.4   mycroft  * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
      5   1.1       erh  * All rights reserved.
      6   1.1       erh  *
      7   1.1       erh  * This code is derived from software contributed to The NetBSD Foundation
      8   1.1       erh  * by Eric Haszlakiewicz.
      9   1.1       erh  *
     10   1.1       erh  * Redistribution and use in source and binary forms, with or without
     11   1.1       erh  * modification, are permitted provided that the following conditions
     12   1.1       erh  * are met:
     13   1.1       erh  * 1. Redistributions of source code must retain the above copyright
     14   1.1       erh  *    notice, this list of conditions and the following disclaimer.
     15   1.1       erh  * 2. Redistributions in binary form must reproduce the above copyright
     16   1.1       erh  *    notice, this list of conditions and the following disclaimer in the
     17   1.1       erh  *    documentation and/or other materials provided with the distribution.
     18   1.1       erh  *
     19   1.1       erh  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20   1.1       erh  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21   1.1       erh  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22   1.1       erh  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23   1.1       erh  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24   1.1       erh  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25   1.1       erh  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26   1.1       erh  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27   1.1       erh  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28   1.1       erh  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29   1.1       erh  * POSSIBILITY OF SUCH DAMAGE.
     30   1.1       erh  */
     31   1.1       erh 
     32   1.1       erh #ifndef _ALPHA_LINUX_MACHDEP_H
     33   1.1       erh #define _ALPHA_LINUX_MACHDEP_H
     34   1.1       erh 
     35  1.10       chs #include <compat/linux/common/linux_types.h>
     36   1.6  christos #include <compat/linux/common/linux_signal.h>
     37  1.10       chs #include <compat/linux/common/linux_siginfo.h>
     38   1.6  christos 
     39   1.1       erh /*
     40   1.1       erh  * The Linux sigcontext, pretty much a standard alpha trapframe.
     41   1.1       erh  */
     42   1.1       erh struct linux_sigcontext {
     43   1.1       erh 	long		sc_onstack;
     44   1.1       erh 	long		sc_mask;
     45   1.1       erh 	long		sc_pc;
     46   1.1       erh 	long		sc_ps;
     47   1.1       erh 	long		sc_regs[32];
     48   1.1       erh 	long		sc_ownedfp;
     49   1.1       erh 	long		sc_fpregs[32];
     50   1.1       erh 	unsigned long	sc_fpcr;
     51   1.1       erh 	unsigned long	sc_fp_control;
     52   1.1       erh 	unsigned long	sc_reserved1, sc_reserved2;
     53   1.1       erh 	unsigned long	sc_ssize;
     54   1.1       erh 	char *		sc_sbase;
     55   1.1       erh 	unsigned long	sc_traparg_a0;
     56   1.1       erh 	unsigned long	sc_traparg_a1;
     57   1.1       erh 	unsigned long	sc_traparg_a2;
     58   1.1       erh 	unsigned long	sc_fp_trap_pc;
     59   1.1       erh 	unsigned long	sc_fp_trigger_sum;
     60   1.1       erh 	unsigned long	sc_fp_trigger_inst;
     61   1.1       erh };
     62   1.1       erh 
     63   1.1       erh struct linux_ucontext {
     64   1.1       erh 	u_long			uc_flags;
     65   1.1       erh 	struct linux_ucontext	*uc_link;
     66   1.1       erh 	linux_old_sigset_t	uc_osf_sigmask;
     67   1.1       erh 	linux_stack_t		uc_stack;
     68   1.1       erh 	struct linux_sigcontext	uc_mcontext;
     69   1.1       erh 	linux_sigset_t		uc_sigmask;
     70   1.1       erh };
     71   1.1       erh 
     72   1.1       erh /*
     73   1.1       erh  * We make the stack look like Linux expects it when calling a signal
     74   1.1       erh  * handler, but use the BSD way of calling the handler and sigreturn().
     75   1.1       erh  */
     76   1.1       erh 
     77   1.1       erh #define LINUX_INSN_MOV_R30_R16	0x47fe0410
     78   1.1       erh #define LINUX_INSN_LDI_R0	0x201f0000
     79   1.1       erh #define LINUX_INSN_CALLSYS	0x00000083
     80   1.1       erh 
     81   1.1       erh struct linux_sigframe {
     82   1.1       erh 	struct		linux_sigcontext sf_sc;
     83   1.1       erh 	unsigned long	extramask[LINUX__NSIG_WORDS-1];
     84   1.1       erh 	unsigned int	retcode[3];
     85   1.1       erh };
     86   1.1       erh 
     87   1.1       erh struct linux_rt_sigframe {
     88   1.1       erh 	struct linux_siginfo	info;
     89   1.1       erh 	struct linux_ucontext	uc;
     90   1.1       erh 	unsigned int		retcode[3];
     91   1.1       erh };
     92   1.1       erh 
     93   1.1       erh #ifdef _KERNEL
     94   1.1       erh __BEGIN_DECLS
     95  1.12     njoly void setup_linux_rt_sigframe(struct trapframe *, const ksiginfo_t *,
     96  1.12     njoly     const sigset_t *);
     97  1.12     njoly void setup_linux_sigframe(struct trapframe *, const ksiginfo_t *,
     98  1.12     njoly     const sigset_t *);
     99   1.9      matt int linux_restore_sigcontext(struct lwp *, struct linux_sigcontext,
    100  1.12     njoly     sigset_t *);
    101   1.9      matt void linux_syscall_intern(struct proc *);
    102   1.1       erh __END_DECLS
    103   1.1       erh #endif /* !_KERNEL */
    104   1.1       erh 
    105   1.1       erh #endif /* _ALPHA_LINUX_MACHDEP_H */
    106