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/* $NetBSD: db_trace.c,v 1.4 1995/07/05 18:51:41 pk Exp $ */
/*
* Mach Operating System
* Copyright (c) 1991,1990 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#include "param.h"
#include "proc.h"
#include <machine/db_machdep.h>
#include <ddb/db_access.h>
#include <ddb/db_sym.h>
#define INKERNEL(va) (((vm_offset_t)(va)) >= USRSTACK)
void
db_stack_trace_cmd(addr, have_addr, count, modif)
db_expr_t addr;
int have_addr;
db_expr_t count;
char *modif;
{
struct frame *frame;
boolean_t kernel_only = TRUE;
{
register char c, *cp = modif;
while ((c = *cp++) != 0)
if (c == 'u')
kernel_only = FALSE;
}
if (count == -1)
count = 65535;
if (!have_addr)
frame = (struct frame *)DDB_TF->tf_out[6];
else
frame = (struct frame *)addr;
while (count--) {
int i;
db_expr_t offset;
db_sym_t sym;
char *name;
db_addr_t pc;
pc = frame->fr_pc;
if (!INKERNEL(pc))
break;
db_find_sym_and_offset(pc, &name, &offset);
if (name == NULL)
name = "?";
db_printf("%s(", name);
/*
* Switch to frame that contains arguments
*/
frame = frame->fr_fp;
/*
* Print %i0..%i5, hope these still reflect the
* actual arguments somewhat...
*/
for (i=0; i < 5; i++)
db_printf("%x, ", frame->fr_arg[i]);
db_printf("%x) at ", frame->fr_arg[i]);
db_printsym(pc, DB_STGY_PROC);
db_printf("\n");
}
}
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