171 lines
5.1 KiB
C
171 lines
5.1 KiB
C
/* $NetBSD: linux_machdep.h,v 1.2 1999/04/19 20:58:38 kleink Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by ITOH Yasufumi.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _M68K_LINUX_MACHDEP_H
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#define _M68K_LINUX_MACHDEP_H
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#include <m68k/frame.h>
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#include <compat/linux/common/linux_signal.h>
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/*
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* Signal stack definitions for old signal interface.
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*/
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struct linux_sigcontext {
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linux_old_sigset_t sc_mask; /* signal mask to restore */
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u_int sc_sp; /* usp to restore */
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u_int sc_d0;
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u_int sc_d1;
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u_int sc_a0;
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u_int sc_a1;
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u_short sc_ps; /* processor status (sr reg) */
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u_int sc_pc;
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/*
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* The Linux sigstate (state of hardware).
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*/
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struct linux_sigstate {
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u_short ss_format:4, /* frame # */
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ss_vector:12; /* vector offset */
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struct linux_fpframe {
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u_int fpf_regs[2][3]; /* only fp0 and fp1 */
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u_int fpf_fpcr;
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u_int fpf_fpsr;
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u_int fpf_fpiar;
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union FPF_u1 FPF_u1;
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union FPF_u2 FPF_u2;
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} ss_fpstate; /* 68881/68882 state info */
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union F_u ss_frame; /* original exception frame */
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} sc_ss;
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};
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/*
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* The Linux compatible signal frame
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* On Linux, the sigtramp code is on the frame structure.
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*/
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struct linux_sigframe {
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void *sf_psigtramp;
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int sf_signum; /* signo for handler */
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int sf_code; /* Linux stores vector offset here */
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struct linux_sigcontext *sf_scp; /* context ptr for handler */
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int sf_sigtramp[2];
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struct linux_sigc2 {
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#if LINUX__NSIG_WORDS > 1
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/* This breaks backward compatibility, but Linux 2.1 has.... */
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u_long c_extrasigmask[LINUX__NSIG_WORDS - 1];
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#endif
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struct linux_sigcontext c_sc; /* actual context */
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} sf_c;
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};
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#define LINUX_SF_SIGTRAMP0 0xDEFC0014 /* addaw #20,sp */
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#define LINUX_SF_SIGTRAMP1 (0x70004E40 | (LINUX_SYS_sigreturn << 16))
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/* moveq #LINUX_SYS_sigreturn,d0; trap #0 */
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/*
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* Signal stack definitions for new RT signal interface.
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*/
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typedef struct linux_gregset {
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u_int gr_regs[16]; /* d0-d7/a0-a6/usp */
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u_int gr_pc;
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u_int gr_sr;
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} linux_gregset_t;
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typedef struct linux_fpregset {
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u_int fpr_fpcr;
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u_int fpr_fpsr;
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u_int fpr_fpiar;
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u_int fpr_regs[8][3]; /* fp0-fp7 */
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} linux_fpregset_t;
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struct linux_mcontext {
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int mc_version;
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linux_gregset_t mc_gregs;
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linux_fpregset_t mc_fpregs;
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};
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#define LINUX_MCONTEXT_VERSION 2
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struct linux_ucontext {
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u_long uc_flags; /* 0 */
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struct linux_ucontext *uc_link; /* 0 */
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linux_stack_t uc_stack;
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struct linux_mcontext uc_mc;
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struct linux_rt_sigstate {
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struct linux_rt_fpframe {
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union FPF_u1 FPF_u1;
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union FPF_u2 FPF_u2;
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} ss_fpstate;
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unsigned int ss_unused1:16,
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ss_format:4,
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ss_vector:12;
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union F_u ss_frame; /* original exception frame */
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int ss_unused2[4];
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} uc_ss;
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linux_sigset_t uc_sigmask;
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};
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/*
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* The Linux compatible RT signal frame
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* On Linux, the sigtramp code is on the frame structure.
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*/
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struct linux_rt_sigframe {
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void *sf_psigtramp;
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int sf_signum;
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struct linux_siginfo *sf_pinfo;
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void *sf_puc;
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struct linux_siginfo sf_info;
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struct linux_ucontext sf_uc;
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int sf_sigtramp[2];
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};
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#define LINUX_RT_SF_SIGTRAMP0 (0x203C0000 | (LINUX_SYS_rt_sigreturn >> 16))
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#define LINUX_RT_SF_SIGTRAMP1 (0x00004E40 | (LINUX_SYS_rt_sigreturn << 16))
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/* movel #LINUX_SYS_rt_sigreturn,#d0; trap #0 */
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#ifdef _KERNEL
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/* linux_machdep.c */
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void linux_sendsig __P((sig_t, int, sigset_t *, u_long));
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dev_t linux_fakedev __P((dev_t));
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#endif /* _KERNEL */
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#endif /* _M68K_LINUX_MACHDEP_H */
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