diff options
Diffstat (limited to 'sys/arch/mvme88k/m88k/process_machdep.c')
| -rw-r--r-- | sys/arch/mvme88k/m88k/process_machdep.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/sys/arch/mvme88k/m88k/process_machdep.c b/sys/arch/mvme88k/m88k/process_machdep.c new file mode 100644 index 00000000000..62a3ba89dfb --- /dev/null +++ b/sys/arch/mvme88k/m88k/process_machdep.c @@ -0,0 +1,155 @@ +/* $NetBSD: process_machdep.c,v 1.5 1994/11/20 20:54:37 deraadt Exp $ */ + +/* + * Copyright (c) 1993 The Regents of the University of California. + * Copyright (c) 1993 Jan-Simon Pendry + * All rights reserved. + * + * This code is derived from software contributed to Berkeley by + * Jan-Simon Pendry. + * + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the University of + * California, Berkeley and its contributors. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. + * + * from: Id: procfs_i386.c,v 4.1 1993/12/17 10:47:45 jsp Rel + */ + +/* + * This file may seem a bit stylized, but that so that it's easier to port. + * Functions to be implemented here are: + * + * process_read_regs(proc, regs) + * Get the current user-visible register set from the process + * and copy it into the regs structure (<machine/reg.h>). + * The process is stopped at the time read_regs is called. + * + * process_write_regs(proc, regs) + * Update the current register set from the passed in regs + * structure. Take care to avoid clobbering special CPU + * registers or privileged bits in the PSL. + * The process is stopped at the time write_regs is called. + * + * process_sstep(proc) + * Arrange for the process to trap after executing a single instruction. + * + * process_set_pc(proc) + * Set the process's program counter. + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/time.h> +#include <sys/kernel.h> +#include <sys/proc.h> +#include <sys/user.h> +#include <sys/vnode.h> +#include <machine/psl.h> +#include <machine/reg.h> +#if 0 +#include <machine/frame.h> +#endif +#include <sys/ptrace.h> + +int +process_read_regs(p, regs) + struct proc *p; + struct reg *regs; +{ +#if 0 + /* NOTE: struct reg == struct trapframe */ + bcopy(p->p_md.md_tf, (caddr_t)regs, sizeof(struct reg)); +#endif + return (0); +} + +int +process_write_regs(p, regs) + struct proc *p; + struct reg *regs; +{ +#if 0 + int psr = p->p_md.md_tf->tf_psr & ~PSR_ICC; + bcopy((caddr_t)regs, p->p_md.md_tf, sizeof(struct reg)); + p->p_md.md_tf->tf_psr = psr | (regs->r_psr & PSR_ICC); +#endif + return (0); +} + +int +process_sstep(p, sstep) + struct proc *p; +{ +#if 0 + if (sstep) + return EINVAL; +#endif + return (0); +} + +int +process_set_pc(p, addr) + struct proc *p; + caddr_t addr; +{ +#if 0 + p->p_md.md_tf->tf_pc = (u_int)addr; + p->p_md.md_tf->tf_npc = (u_int)addr + 4; +#endif + return (0); +} + +int +process_read_fpregs(p, regs) +struct proc *p; +struct fpreg *regs; +{ +#if 0 + extern struct fpstate initfpstate; + struct fpstate *statep = &initfpstate; + + /* NOTE: struct fpreg == struct fpstate */ + if (p->p_md.md_fpstate) + statep = p->p_md.md_fpstate; + bcopy(statep, regs, sizeof(struct fpreg)); +#endif + return 0; +} + +int +process_write_fpregs(p, regs) +struct proc *p; +struct fpreg *regs; +{ +#if 0 + if (p->p_md.md_fpstate == NULL) + return EINVAL; + + bcopy(regs, p->p_md.md_fpstate, sizeof(struct fpreg)); +#endif + return 0; +} |