MD glue for COMPAT_NETBSD32 on SH-5.
This commit is contained in:
scw
parent
6166cc6e93
commit
c774ffbae4
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# $NetBSD: Makefile,v 1.6 2002/09/28 11:16:38 scw Exp $
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# $NetBSD: Makefile,v 1.7 2002/10/23 13:26:37 scw Exp $
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KDIR= /sys/arch/evbsh5/include
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INCSDIR= /usr/include/evbsh5
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@ -13,6 +13,7 @@ INCS= ansi.h aout_machdep.h asm.h \
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int_const.h int_fmtio.h int_limits.h int_mwgwtypes.h int_types.h \
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limits.h lock.h \
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math.h \
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netbsd32_machdep.h \
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param.h pcb.h pci_machdep.h pmap.h pmc.h proc.h profile.h ptrace.h \
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reg.h \
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setjmp.h signal.h stdarg.h \
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/* $NetBSD: netbsd32_machdep.h,v 1.1 2002/10/23 13:26:38 scw Exp $ */
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#include <sh5/netbsd32_machdep.h>
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@ -1,4 +1,4 @@
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# $NetBSD: Makefile,v 1.7 2002/09/28 11:16:36 scw Exp $
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# $NetBSD: Makefile,v 1.8 2002/10/23 13:26:35 scw Exp $
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KDIR= /sys/arch/sh5/include
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INCSDIR= /usr/include/sh5
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@ -13,6 +13,7 @@ INCS= ansi.h aout_machdep.h asm.h \
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int_const.h int_fmtio.h int_limits.h int_mwgwtypes.h int_types.h \
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limits.h lock.h \
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math.h \
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netbsd32_machdep.h \
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param.h pcb.h pmap.h pmc.h proc.h profile.h pte.h ptrace.h \
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pci_machdep.h \
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reg.h \
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/* $NetBSD: netbsd32_machdep.h,v 1.1 2002/10/23 13:26:36 scw Exp $ */
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/*
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* Copyright 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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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 for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* 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 WASABI SYSTEMS, INC
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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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/*
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* The world's simplest COMPAT_NETBSD32 shim ...
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*/
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#ifndef _SH5_NETBSD32_MACHDEP_H
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#define _SH5_NETBSD32_MACHDEP_H
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#include <sys/types.h>
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#include <sys/proc.h>
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#include <compat/netbsd32/netbsd32.h>
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typedef int netbsd32_pointer_t;
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#define NETBSD32PTR64(p32) ((void *)(long)(int)(p32))
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#define register32_t register_t
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typedef netbsd32_pointer_t netbsd32_sigcontextp_t;
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#define netbsd32_sigcontext sigcontext
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#define netbsd32_sigcode sigcode
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#define netbsd32_esigcode esigcode
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#define netbsd32_sendsig sendsig
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#define netbsd32_syscall_intern syscall_intern
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extern void netbsd32_setregs(struct proc *, struct exec_package *, u_long);
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#endif /* _SH5_NETBSD32_MACHDEP_H */
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@ -0,0 +1,170 @@
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/* $NetBSD: netbsd32_machdep.c,v 1.1 2002/10/23 13:26:37 scw Exp $ */
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/*
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* Copyright 2002 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Steve C. Woodford for Wasabi Systems, Inc.
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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 for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* 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 WASABI SYSTEMS, INC
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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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#ifdef _KERNEL_OPT
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#include "opt_compat_netbsd.h"
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#endif
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/exec.h>
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#include <sys/kernel.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <sys/signal.h>
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#include <sys/signalvar.h>
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#include <sys/mount.h>
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#include <sys/syscallargs.h>
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#include <net/if.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <netinet/in_var.h>
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#include <netinet/igmp.h>
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#include <netinet/igmp_var.h>
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#include <netinet/ip_mroute.h>
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#include <compat/netbsd32/netbsd32.h>
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#include <compat/netbsd32/netbsd32_ioctl.h>
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#include <compat/netbsd32/netbsd32_syscallargs.h>
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#include <machine/cpu.h>
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#include <machine/reg.h>
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char machine_arch32[] = "sh5";
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int
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netbsd32___sigreturn14(struct proc *p, void *v, register_t *retval)
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{
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struct netbsd32___sigreturn14_args /* {
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syscallarg(struct sigcontext *) sigcntxp;
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} */ *uap = v;
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struct sys___sigreturn14_args csra;
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netbsd32_sigcontextp_t scp;
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scp = (netbsd32_sigcontextp_t) SCARG(uap, sigcntxp);
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SCARG(&csra, sigcntxp) = (struct sigcontext *)(intptr_t)scp;
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return (sys___sigreturn14(p, &csra, retval));
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}
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/*ARGSUSED*/
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int
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cpu_coredump32(struct proc *p, struct vnode *vp,
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struct ucred *cred, struct core32 *chdr)
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{
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return (0);
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}
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int
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netbsd32_sysarch(struct proc *p, void *v, register_t *retval)
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{
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struct netbsd32_sysarch_args /* {
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syscallarg(int) op;
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syscallarg(netbsd32_voidp) parms;
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} */ *uap = v;
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switch (SCARG(uap, op)) {
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default:
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printf("(%s) netbsd32_sysarch(%d)\n", MACHINE, SCARG(uap, op));
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return EINVAL;
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}
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}
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void
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netbsd32_setregs(struct proc *p, struct exec_package *pack, u_long stack)
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{
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struct trapframe *tf = p->p_md.md_regs;
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register_t sstack;
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int argc;
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/* Ensure stack pointer is sign-extended */
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sstack = (register_t)(long)stack;
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/* This cannot fail, as copyargs() has already used copyout() on it */
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#ifdef DIAGNOSTIC
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if (copyin((caddr_t)(uintptr_t)sstack, &argc, sizeof(argc)) != 0)
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panic("setregs: argc copyin failed!");
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#else
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(void) copyin((caddr_t)(uintptr_t)sstack, &argc, sizeof(argc));
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#endif
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memset(tf, 0, sizeof(*tf));
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tf->tf_state.sf_spc = pack->ep_entry;
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tf->tf_state.sf_ssr = SH5_CONREG_SR_MMU;
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tf->tf_state.sf_flags = SF_FLAGS_CALLEE_SAVED;
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tf->tf_caller.r2 = (register_t) argc; /* argc */
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tf->tf_caller.r3 = (register_t) (sstack + sizeof(int)); /* argv */
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tf->tf_caller.r4 = (register_t) (sstack + ((argc + 2) * sizeof(int)));
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/*
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* r5 and r6 are reserved for the `cleanup' and `obj' parameters
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* passed by the dynamic loader. The kernel always sets them to 0.
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*/
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tf->tf_caller.r7 = (register_t)(long)p->p_psstr;
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/* Align the stack as required by the SH-5 ABI */
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tf->tf_caller.r15 = (register_t) (sstack & ~0xf);
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/* Give the new process a clean set of FP regs */
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memset(&p->p_addr->u_pcb.pcb_ctx.sf_fpregs, 0, sizeof(struct fpregs));
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/*
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* I debated with myself about the following for a wee while.
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*
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* Disable FPU Exceptions for arithmetic operations on de-normalised
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* numbers. While this is contrary to the IEEE-754, it's how things
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* work in NetBSD/i386.
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*
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* Since most applications are likely to have been developed on i386
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* platforms, most application programmers would never see this
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* fault in their code. The in-tree top(1) program is one such
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* offender, under certain circumstances.
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*
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* With FPSCR.DN set, denormalised numbers are quietly flushed to zero.
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*/
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p->p_addr->u_pcb.pcb_ctx.sf_fpregs.fpscr = 0x20000;
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sh5_fprestore(SH5_CONREG_USR_FPRS_MASK << SH5_CONREG_USR_FPRS_SHIFT,
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&p->p_addr->u_pcb);
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}
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