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Add support for tracing other processes with trace /t.

This commit is contained in:
mark 1999-03-01 05:48:31 +00:00
parent 19893da01b
commit d4a3aa46b4
1 changed files with 31 additions and 10 deletions
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41
sys/arch/arm32/arm32/db_trace.c
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@ -1,4 +1,4 @@
/* $NetBSD: db_trace.c,v 1.8 1999/01/20 13:56:35 mycroft Exp $ */
/* $NetBSD: db_trace.c,v 1.9 1999/03/01 05:48:31 mark Exp $ */
/*
* Copyright (c) 1996 Scott K. Stevens
@ -30,6 +30,7 @@
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/user.h>
#include <machine/db_machdep.h>
#include <ddb/db_access.h>
@ -46,13 +47,15 @@ db_stack_trace_cmd(addr, have_addr, count, modif)
char *modif;
{
struct frame *frame, *lastframe;
char c, *cp = modif;
boolean_t kernel_only = TRUE;
boolean_t trace_thread = FALSE;
{
register char c, *cp = modif;
while ((c = *cp++) != 0)
if (c == 'u')
kernel_only = FALSE;
while ((c = *cp++) != 0) {
if (c == 'u')
kernel_only = FALSE;
if (c == 't')
trace_thread = TRUE;
}
if (count == -1)
@ -67,10 +70,28 @@ db_stack_trace_cmd(addr, have_addr, count, modif)
if (!have_addr)
frame = (struct frame *)(DDB_REGS->tf_r11
- (sizeof(struct frame) - sizeof(u_int)));
else
frame = (struct frame *)(addr - (sizeof(struct frame)
- sizeof(u_int)));
else {
if (trace_thread) {
struct proc *p;
struct user *u;
db_printf ("trace: pid %d ", (int)addr);
p = pfind(addr);
if (p == NULL) {
db_printf("not found\n");
return;
}
if (!(p->p_flag & P_INMEM)) {
db_printf("swapped out\n");
return;
}
u = p->p_addr;
frame = (struct frame *) (u->u_pcb.pcb_r11
- (sizeof(struct frame) - sizeof(u_int)));
db_printf("at %p\n", frame);
} else
frame = (struct frame *)(addr - (sizeof(struct frame)
- sizeof(u_int)));
}
lastframe = NULL;
while (count--) {