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/* $OpenBSD: hppa.c,v 1.8 2003/05/30 20:53:29 mickey Exp $ */
/*
* Copyright (c) 2002-2003 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/ptrace.h>
#include <machine/reg.h>
#include "pmdb.h"
static const char *md_reg_names[] = {
"%sar", "%r1", "%rp", "%r3", "%r4", "%r5", "%r6", "%r7",
"%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15",
"%r16", "%r17", "%r18", "%r19", "%r20", "%r21", "%r22", "%r23",
"%r24", "%r25", "%r26", "%r27", "%r28", "%r29", "%r30", "%r31",
"%pc", "%npc"
};
struct md_def md_def = { md_reg_names, 34, 32 };
void
md_def_init(void)
{
/* no need to do anything */
}
int
md_getframe(struct pstate *ps, int frame, struct md_frame *fram)
{
reg fr[16];
struct reg r;
reg fp, pc, rp;
int i;
if (process_getregs(ps, &r))
return (-1);
rp = r.r_regs[2];
fp = r.r_regs[3];
pc = r.r_pc;
for (i = 0; i < frame; i++) {
if (!fp)
return (-1);
if (process_read(ps, fp-15*4, &fr, sizeof(fr)) < 0)
return (-1);
pc = rp;
fp = fr[15];
rp = fr[10];
}
fram->pc = pc;
fram->fp = fp;
if (frame != 0) {
fram->nargs = 4; /* XXX real number is in the symtab */
fram->args[3] = fr[3];
fram->args[2] = fr[4];
fram->args[1] = fr[5];
fram->args[0] = fr[6];
}
return (0);
}
int
md_getregs(struct pstate *ps, reg *regs)
{
struct reg r;
if (process_getregs(ps, &r))
return (-1);
memcpy(regs, &r, sizeof(r));
return (0);
}
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