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/* $NetBSD: linux_machdep.h,v 1.12 2011/11/21 22:00:42 njoly Exp $ */
/*-
* Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Eric Haszlakiewicz.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _ALPHA_LINUX_MACHDEP_H
#define _ALPHA_LINUX_MACHDEP_H
#include <compat/linux/common/linux_types.h>
#include <compat/linux/common/linux_signal.h>
#include <compat/linux/common/linux_siginfo.h>
/*
* The Linux sigcontext, pretty much a standard alpha trapframe.
*/
struct linux_sigcontext {
long sc_onstack;
long sc_mask;
long sc_pc;
long sc_ps;
long sc_regs[32];
long sc_ownedfp;
long sc_fpregs[32];
unsigned long sc_fpcr;
unsigned long sc_fp_control;
unsigned long sc_reserved1, sc_reserved2;
unsigned long sc_ssize;
char * sc_sbase;
unsigned long sc_traparg_a0;
unsigned long sc_traparg_a1;
unsigned long sc_traparg_a2;
unsigned long sc_fp_trap_pc;
unsigned long sc_fp_trigger_sum;
unsigned long sc_fp_trigger_inst;
};
struct linux_ucontext {
u_long uc_flags;
struct linux_ucontext *uc_link;
linux_old_sigset_t uc_osf_sigmask;
linux_stack_t uc_stack;
struct linux_sigcontext uc_mcontext;
linux_sigset_t uc_sigmask;
};
/*
* We make the stack look like Linux expects it when calling a signal
* handler, but use the BSD way of calling the handler and sigreturn().
*/
#define LINUX_INSN_MOV_R30_R16 0x47fe0410
#define LINUX_INSN_LDI_R0 0x201f0000
#define LINUX_INSN_CALLSYS 0x00000083
struct linux_sigframe {
struct linux_sigcontext sf_sc;
unsigned long extramask[LINUX__NSIG_WORDS-1];
unsigned int retcode[3];
};
struct linux_rt_sigframe {
struct linux_siginfo info;
struct linux_ucontext uc;
unsigned int retcode[3];
};
#ifdef _KERNEL
__BEGIN_DECLS
void setup_linux_rt_sigframe(struct trapframe *, const ksiginfo_t *,
const sigset_t *);
void setup_linux_sigframe(struct trapframe *, const ksiginfo_t *,
const sigset_t *);
int linux_restore_sigcontext(struct lwp *, struct linux_sigcontext,
sigset_t *);
void linux_syscall_intern(struct proc *);
__END_DECLS
#endif /* !_KERNEL */
#endif /* _ALPHA_LINUX_MACHDEP_H */
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