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When looking for the next element of cpu_queue compare the pointer to the 

address of the head, not to the head itself.  Not sure if the cast of the
arg to db_value_name() is right, but works on i386 and compiles on sparc64.

Stack traces from ddb work again on i386.
This commit is contained in:
hannken 2011-02-20 10:24:45 +00:00
parent aa4c71d781
commit 4e993c9545
1 changed files with 5 additions and 3 deletions
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8
sys/ddb/db_cpu.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: db_cpu.c,v 1.3 2009/03/09 06:07:05 mrg Exp $ */
/* $NetBSD: db_cpu.c,v 1.4 2011/02/20 10:24:45 hannken Exp $ */
/*-
* Copyright (c) 2009 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: db_cpu.c,v 1.3 2009/03/09 06:07:05 mrg Exp $");
__KERNEL_RCSID(0, "$NetBSD: db_cpu.c,v 1.4 2011/02/20 10:24:45 hannken Exp $");
#ifndef _KERNEL
#include <stdbool.h>
@ -43,12 +43,14 @@ __KERNEL_RCSID(0, "$NetBSD: db_cpu.c,v 1.3 2009/03/09 06:07:05 mrg Exp $");
#include <ddb/ddb.h>
static struct cpu_info *head;
static void *head_addr;
struct cpu_info *
db_cpu_first(void)
{
head = db_read_ptr("cpu_queue");
(void) db_value_of_name("cpu_queue", (db_expr_t *)&head_addr);
return head;
}
@ -58,7 +60,7 @@ db_cpu_next(struct cpu_info *ci)
db_read_bytes((db_addr_t)&ci->ci_data.cpu_qchain.cqe_next,
sizeof(ci), (char *)&ci);
if (ci == head) {
if (ci == head_addr) {
ci = NULL;
}
return ci;