common code
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cgd
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# $Id: files.m68k,v 1.1 1994/01/08 11:15:53 cgd Exp $
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#
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arch/m68k/m68k/process_machdep.c standard
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arch/m68k/m68k/in_cksum.c optional inet
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arch/m68k/m68k/ns_cksum.c optional ns
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arch/m68k/m68k/oc_cksum.s optional inet
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# $Id: files.m68k.oldconf,v 1.1 1994/01/08 11:15:53 cgd Exp $
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#
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arch/m68k/m68k/process_machdep.c standard
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arch/m68k/m68k/in_cksum.c optional inet
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arch/m68k/m68k/ns_cksum.c optional ns
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arch/m68k/m68k/oc_cksum.s optional inet
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/*
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* Copyright (c) 1993 Christopher G. Demetriou
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* All rights reserved.
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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 Christopher G. Demetriou.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: ptrace.h,v 1.1 1994/01/08 11:17:00 cgd Exp $
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*/
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/*
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* m68k-dependent ptrace definitions
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*/
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#define PT_GETREGS (PT_FIRSTMACH + 0)
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#define PT_SETREGS (PT_FIRSTMACH + 1)
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#define PT_GETFPREGS (PT_FIRSTMACH + 2)
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#define PT_SETFPREGS (PT_FIRSTMACH + 3)
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@ -32,17 +32,17 @@
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*
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* from: Utah Hdr: in_cksum.c 1.1 90/07/09
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* from: @(#)in_cksum.c 7.3 (Berkeley) 12/16/90
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* $Id: in_cksum.c,v 1.3 1993/08/01 19:24:43 mycroft Exp $
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* $Id: in_cksum.c,v 1.4 1994/01/08 11:17:23 cgd Exp $
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*/
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/*
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* in_cksum - checksum routine for the Internet Protocol family.
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*/
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#include "sys/param.h"
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#include "sys/mbuf.h"
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#include "netinet/in.h"
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#include "netinet/in_systm.h"
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#include <sys/param.h>
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#include <sys/mbuf.h>
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#include <netinet/in.h>
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#include <netinet/in_systm.h>
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extern int oc_cksum();
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@ -31,11 +31,11 @@
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* SUCH DAMAGE.
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*
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* from: @(#)ns_cksum.c 7.7 (Berkeley) 4/29/91
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* $Id: ns_cksum.c,v 1.2 1993/05/22 07:57:36 cgd Exp $
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* $Id: ns_cksum.c,v 1.3 1994/01/08 11:17:27 cgd Exp $
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*/
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#include "sys/param.h"
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#include "sys/mbuf.h"
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#include <sys/param.h>
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#include <sys/mbuf.h>
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/*
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* Checksum routine for Network Systems Protocol Packets (Big-Endian).
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/*
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* Copyright (c) 1993 Christopher G. Demetriou
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* All rights reserved.
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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 Christopher G. Demetriou.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: process_machdep.c,v 1.1 1994/01/08 11:17:29 cgd Exp $
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*/
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/*
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* This file may seem a bit stylized, but that so that it's easier to port.
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* Functions to be implemented here are:
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*
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* process_read_regs(proc, regs)
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* Get the current user-visible register set from the process
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* and copy it into the regs structure (<machine/reg.h>).
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* The process is stopped at the time read_regs is called.
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*
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* process_write_regs(proc, regs)
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* Update the current register set from the passed in regs
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* structure. Take care to avoid clobbering special CPU
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* registers or privileged bits in the PSL.
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* The process is stopped at the time write_regs is called.
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*
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* process_sstep(proc)
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* Arrange for the process to trap after executing a single instruction.
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*
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* process_fix_sstep(proc)
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* Cleanup process state after executing a single-step instruction.
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*
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* process_set_pc(proc)
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* Set the process's program counter.
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*/
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#include <sys/param.h>
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#include <sys/systm.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/vnode.h>
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#include <sys/ptrace.h>
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#include <machine/psl.h>
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#include <machine/reg.h>
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extern char kstack[]; /* XXX */
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int
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process_read_regs(p, regs)
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struct proc *p;
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struct reg *regs;
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{
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struct frame *frame;
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if ((p->p_flag & SLOAD) == 0)
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return EIO;
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frame = (struct frame *)
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((char *)p->p_addr + ((char *)p->p_regs - (char *)kstack));
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bcopy(frame->f_regs, regs->r_regs, sizeof(frame->f_regs));
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regs->r_sr = frame->f_sr;
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regs->r_pc = frame->f_pc;
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return 0;
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}
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int
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process_write_regs(p, regs)
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struct proc *p;
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struct reg *regs;
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{
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struct frame *frame;
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if ((p->p_flag & SLOAD) == 0)
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return EIO;
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frame = (struct frame *)
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((char *)p->p_addr + ((char *)p->p_regs - (char *)kstack));
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/*
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* in the hp300 machdep.c _write_regs, PC alignment wasn't
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* checked. If an odd address is placed in the PC and the
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* program is allowed to run, it will cause an Address Error
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* which will be transmitted to the process by a SIGBUS.
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* No reasonable debugger would let this happen, but
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* it's not our problem.
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*/
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/*
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* XXX
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* in hp300 machdep.c, it just cleared/set these bits
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* automatically. here, we barf. well-written programs
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* shouldn't munge them.
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*/
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if ((regs->r_sr & PSL_USERCLR) != 0 ||
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(regs->r_sr & PSL_USERSET) != PSL_USERSET)
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return EPERM;
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bcopy(regs->r_regs, frame->f_regs, sizeof(frame->f_regs));
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frame->f_sr = regs->r_sr;
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frame->f_pc = regs->r_pc;
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return 0;
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}
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int
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process_sstep(p)
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struct proc *p;
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{
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int error;
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struct reg r;
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error = process_read_regs(p, &r);
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if (error == 0) {
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r.r_sr |= PSL_T;
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error = process_write_regs(p, &r);
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}
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return (error);
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}
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int
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process_fix_sstep(p)
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struct proc *p;
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{
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return 0;
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}
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int
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process_set_pc(p, addr)
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struct proc *p;
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u_int addr;
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{
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int error;
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struct reg r;
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/*
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* in the hp300 machdep.c _set_pc, PC alignment is guaranteed
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* by chopping off the low order bit of the new pc.
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* If an odd address was placed in the PC and the program
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* is allowed to run, it will cause an Address Error
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* which will be transmitted to the process by a SIGBUS.
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* No reasonable debugger would let this happen, but
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* it's not our problem.
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*/
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error = process_read_regs(p, &r);
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if (error == 0) {
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r.r_pc = addr;
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error = process_write_regs(p, &r);
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}
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return (error);
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}
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