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/* $OpenBSD: process_machdep.c,v 1.14 2007/07/20 20:52:51 kettenis Exp $ */
/*
* Copyright (c) 1999-2004 Michael Shalayeff
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR OR HIS RELATIVES 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 MIND, 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.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/ptrace.h>
#include <sys/user.h>
#include <machine/cpufunc.h>
#include <machine/frame.h>
int
process_read_regs(p, regs)
struct proc *p;
struct reg *regs;
{
struct trapframe *tf = p->p_md.md_regs;
regs->r_regs[ 0] = tf->tf_sar;
regs->r_regs[ 1] = tf->tf_r1;
regs->r_regs[ 2] = tf->tf_rp;
regs->r_regs[ 3] = tf->tf_r3;
regs->r_regs[ 4] = tf->tf_r4;
regs->r_regs[ 5] = tf->tf_r5;
regs->r_regs[ 6] = tf->tf_r6;
regs->r_regs[ 7] = tf->tf_r7;
regs->r_regs[ 8] = tf->tf_r8;
regs->r_regs[ 9] = tf->tf_r9;
regs->r_regs[10] = tf->tf_r10;
regs->r_regs[11] = tf->tf_r11;
regs->r_regs[12] = tf->tf_r12;
regs->r_regs[13] = tf->tf_r13;
regs->r_regs[14] = tf->tf_r14;
regs->r_regs[15] = tf->tf_r15;
regs->r_regs[16] = tf->tf_r16;
regs->r_regs[17] = tf->tf_r17;
regs->r_regs[18] = tf->tf_r18;
regs->r_regs[19] = tf->tf_t4;
regs->r_regs[20] = tf->tf_t3;
regs->r_regs[21] = tf->tf_t2;
regs->r_regs[22] = tf->tf_t1;
regs->r_regs[23] = tf->tf_arg3;
regs->r_regs[24] = tf->tf_arg2;
regs->r_regs[25] = tf->tf_arg1;
regs->r_regs[26] = tf->tf_arg0;
regs->r_regs[27] = tf->tf_dp;
regs->r_regs[28] = tf->tf_ret0;
regs->r_regs[29] = tf->tf_ret1;
regs->r_regs[30] = tf->tf_sp;
regs->r_regs[31] = tf->tf_r31;
regs->r_pc = tf->tf_iioq_head;
regs->r_npc = tf->tf_iioq_tail;
return (0);
}
int
process_read_fpregs(p, fpregs)
struct proc *p;
struct fpreg *fpregs;
{
extern paddr_t fpu_curpcb;
extern u_int fpu_enable;
if (p->p_md.md_regs->tf_cr30 == fpu_curpcb) {
mtctl(fpu_enable, CR_CCR);
fpu_save((vaddr_t)p->p_addr->u_pcb.pcb_fpregs);
mtctl(0, CR_CCR);
}
bcopy(p->p_addr->u_pcb.pcb_fpregs, fpregs, 32 * 8);
pdcache(HPPA_SID_KERNEL, (vaddr_t)p->p_addr->u_pcb.pcb_fpregs, 32 * 8);
return (0);
}
#ifdef PTRACE
int
process_write_regs(p, regs)
struct proc *p;
struct reg *regs;
{
struct trapframe *tf = p->p_md.md_regs;
tf->tf_sar = regs->r_regs[ 0];
tf->tf_r1 = regs->r_regs[ 1];
tf->tf_rp = regs->r_regs[ 2];
tf->tf_r3 = regs->r_regs[ 3];
tf->tf_r4 = regs->r_regs[ 4];
tf->tf_r5 = regs->r_regs[ 5];
tf->tf_r6 = regs->r_regs[ 6];
tf->tf_r7 = regs->r_regs[ 7];
tf->tf_r8 = regs->r_regs[ 8];
tf->tf_r9 = regs->r_regs[ 9];
tf->tf_r10 = regs->r_regs[10];
tf->tf_r11 = regs->r_regs[11];
tf->tf_r12 = regs->r_regs[12];
tf->tf_r13 = regs->r_regs[13];
tf->tf_r14 = regs->r_regs[14];
tf->tf_r15 = regs->r_regs[15];
tf->tf_r16 = regs->r_regs[16];
tf->tf_r17 = regs->r_regs[17];
tf->tf_r18 = regs->r_regs[18];
tf->tf_t4 = regs->r_regs[19];
tf->tf_t3 = regs->r_regs[20];
tf->tf_t2 = regs->r_regs[21];
tf->tf_t1 = regs->r_regs[22];
tf->tf_arg3 = regs->r_regs[23];
tf->tf_arg2 = regs->r_regs[24];
tf->tf_arg1 = regs->r_regs[25];
tf->tf_arg0 = regs->r_regs[26];
tf->tf_dp = regs->r_regs[27];
tf->tf_ret0 = regs->r_regs[28];
tf->tf_ret1 = regs->r_regs[29];
tf->tf_sp = regs->r_regs[30];
tf->tf_r31 = regs->r_regs[31];
tf->tf_iioq_head = regs->r_pc | HPPA_PC_PRIV_USER;
tf->tf_iioq_tail = regs->r_npc | HPPA_PC_PRIV_USER;
return (0);
}
int
process_write_fpregs(p, fpregs)
struct proc *p;
struct fpreg *fpregs;
{
extern paddr_t fpu_curpcb;
if (p->p_md.md_regs->tf_cr30 == fpu_curpcb) {
fpu_exit();
fpu_curpcb = 0;
}
bcopy(fpregs, p->p_addr->u_pcb.pcb_fpregs, 32 * 8);
fdcache(HPPA_SID_KERNEL, (vaddr_t)p->p_addr->u_pcb.pcb_fpregs, 32 * 8);
return (0);
}
/* process_sstep() is in trap.c */
int
process_set_pc(p, addr)
struct proc *p;
caddr_t addr;
{
p->p_md.md_regs->tf_iioq_head = (register_t)addr | HPPA_PC_PRIV_USER;
p->p_md.md_regs->tf_iioq_tail = p->p_md.md_regs->tf_iioq_head + 4;
return (0);
}
#endif /* PTRACE */
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