Clean up deleted files.
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mycroft
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/*
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* Copyright (c) 1993 The Regents of the University of California.
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* Copyright (c) 1993 Jan-Simon Pendry
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Jan-Simon Pendry.
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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 University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* From:
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* Id: procfs_i386.c,v 4.1 1993/12/17 10:47:45 jsp Rel
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*
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* And then from:
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* Id: process_machdep.c,v 1.2 1994/01/09 15:02:24 mycroft Exp
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*
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* $Id: proc_machdep.c,v 1.4 1994/08/01 19:34:00 phil Exp $
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*/
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/* Modified by Phil Nelson for the pc532 port. 1/12/94 */
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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/time.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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#include <machine/frame.h>
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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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if ((p->p_flag & P_INMEM) == 0)
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return (EIO);
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regs->r_r0 = p->p_md.md_regs[REG_R0];
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regs->r_r1 = p->p_md.md_regs[REG_R1];
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regs->r_r2 = p->p_md.md_regs[REG_R2];
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regs->r_r3 = p->p_md.md_regs[REG_R3];
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regs->r_r4 = p->p_md.md_regs[REG_R4];
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regs->r_r5 = p->p_md.md_regs[REG_R5];
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regs->r_r6 = p->p_md.md_regs[REG_R6];
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regs->r_r7 = p->p_md.md_regs[REG_R7];
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regs->r_sb = p->p_md.md_regs[REG_SB];
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regs->r_sp = p->p_md.md_regs[REG_SP];
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regs->r_fp = p->p_md.md_regs[REG_FP];
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regs->r_pc = p->p_md.md_regs[REG_PC];
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regs->r_psr = p->p_md.md_regs[REG_PSR] >> 16;
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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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int psr;
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if ((p->p_flag & P_INMEM) == 0)
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return (EIO);
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psr = regs->r_psr;
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if ((psr & PSL_USERSET) != PSL_USERSET)
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return (EPERM);
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p->p_md.md_regs[REG_R0] = regs->r_r0;
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p->p_md.md_regs[REG_R1] = regs->r_r1;
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p->p_md.md_regs[REG_R2] = regs->r_r2;
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p->p_md.md_regs[REG_R3] = regs->r_r3;
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p->p_md.md_regs[REG_R4] = regs->r_r4;
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p->p_md.md_regs[REG_R5] = regs->r_r5;
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p->p_md.md_regs[REG_R6] = regs->r_r6;
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p->p_md.md_regs[REG_R7] = regs->r_r7;
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p->p_md.md_regs[REG_SB] = regs->r_sb;
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p->p_md.md_regs[REG_SP] = regs->r_sp;
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p->p_md.md_regs[REG_FP] = regs->r_fp;
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p->p_md.md_regs[REG_PC] = regs->r_pc;
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p->p_md.md_regs[REG_PSR] = psr << 16;
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return (0);
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}
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int
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process_sstep(p, sstep)
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struct proc *p;
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int sstep;
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{
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if ((p->p_flag & P_INMEM) == 0)
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return (EIO);
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if (sstep)
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p->p_md.md_regs[REG_PSR] |= (PSL_T << 16);
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else
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p->p_md.md_regs[REG_PSR] &= ~(PSL_T << 16);
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return (0);
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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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if ((p->p_flag & P_INMEM) == 0)
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return (EIO);
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p->p_md.md_regs[REG_PC] = addr;
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return (0);
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}
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