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thorpej
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/* $NetBSD: regdump.c,v 1.1 1997/02/14 19:55:18 gwr Exp $ */
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/*
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* Copyright (c) 1988 University of Utah.
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* Copyright (c) 1982, 1986, 1990, 1993
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* The Regents of the University of California. 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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* the Systems Programming Group of the University of Utah Computer
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* Science Department.
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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: Utah Hdr: machdep.c 1.74 92/12/20
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* from: @(#)machdep.c 8.10 (Berkeley) 4/20/94
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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/proc.h>
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#include <machine/cpu.h>
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#include <machine/frame.h>
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#include <machine/reg.h>
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#include <machine/psl.h>
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#include <machine/machdep.h>
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static void dumpmem __P((int *, int, int));
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static char *hexstr __P((int, int));
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/*
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* Print a register and stack dump.
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*/
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void
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regdump(tf, sbytes)
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struct trapframe *tf; /* must not be register */
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int sbytes;
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{
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static int doingdump = 0;
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register int i;
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int s;
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if (doingdump)
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return;
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s = splhigh();
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doingdump = 1;
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printf("pid = %d, pc = %s, ",
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curproc ? curproc->p_pid : -1, hexstr(tf->tf_pc, 8));
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printf("ps = %s, ", hexstr(tf->tf_sr, 4));
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printf("sfc = %s, ", hexstr(getsfc(), 4));
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printf("dfc = %s\n", hexstr(getdfc(), 4));
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printf("Registers:\n ");
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for (i = 0; i < 8; i++)
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printf(" %d", i);
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printf("\ndreg:");
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for (i = 0; i < 8; i++)
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printf(" %s", hexstr(tf->tf_regs[i], 8));
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printf("\nareg:");
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for (i = 0; i < 8; i++)
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printf(" %s", hexstr(tf->tf_regs[i+8], 8));
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if (sbytes > 0) {
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if (tf->tf_sr & PSL_S) {
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printf("\n\nKernel stack (%s):",
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hexstr((int)(((int *)&tf)-1), 8));
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dumpmem(((int *)&tf)-1, sbytes, 0);
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} else {
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printf("\n\nUser stack (%s):", hexstr(tf->tf_regs[SP], 8));
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dumpmem((int *)tf->tf_regs[SP], sbytes, 1);
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}
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}
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doingdump = 0;
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splx(s);
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}
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static void
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dumpmem(ptr, sz, ustack)
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register int *ptr;
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int sz, ustack;
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{
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register int i, val;
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register int limit;
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/* Stay in the same page */
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limit = ((int)ptr) | (NBPG-3);
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for (i = 0; i < sz; i++) {
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if ((i & 7) == 0)
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printf("\n%s: ", hexstr((int)ptr, 6));
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else
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printf(" ");
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if (ustack == 1) {
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if ((val = fuword(ptr++)) == -1)
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break;
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} else {
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if (((int) ptr) >= limit)
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break;
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val = *ptr++;
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}
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printf("%s", hexstr(val, 8));
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}
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printf("\n");
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}
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static char *
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hexstr(val, len)
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register int val;
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int len;
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{
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static char nbuf[9];
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register int x, i;
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if (len > 8)
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return("");
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nbuf[len] = '\0';
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for (i = len-1; i >= 0; --i) {
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x = val & 0xF;
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/* Isn't this a cool trick? */
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nbuf[i] = "0123456789ABCDEF"[x];
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val >>= 4;
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}
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return(nbuf);
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}
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