Wed Jun 17 21:04:25 2009 UTC ()
Make kobj_stat() return ENOSYS instead of panicking ("not modular")
on non-MODULAR kernels. Make a few kobj_stat() callers check for
a non-zero return code and deal gracefully.
(dyoung)
diff -r1.48 -r1.49 src/sys/kern/kern_module.c
diff -r1.38 -r1.39 src/sys/kern/subr_kobj.c
diff -r1.11 -r1.12 src/sys/sys/kobj.h
--- src/sys/kern/kern_module.c 2009/06/09 20:35:02 1.48
+++ src/sys/kern/kern_module.c 2009/06/17 21:04:25 1.49
@@ -1,4 +1,4 @@
-/* $NetBSD: kern_module.c,v 1.48 2009/06/09 20:35:02 jnemeth Exp $ */
+/* $NetBSD: kern_module.c,v 1.49 2009/06/17 21:04:25 dyoung Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -34,7 +34,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_module.c,v 1.48 2009/06/09 20:35:02 jnemeth Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_module.c,v 1.49 2009/06/17 21:04:25 dyoung Exp $");
#ifdef _KERNEL_OPT
#include "opt_ddb.h"
@@ -1072,7 +1072,8 @@
if (mod->mod_kobj == NULL) {
continue;
}
- kobj_stat(mod->mod_kobj, &maddr, &msize);
+ if (kobj_stat(mod->mod_kobj, &maddr, &msize) != 0)
+ continue;
if (addr < maddr || addr >= maddr + msize) {
continue;
}
@@ -1112,12 +1113,11 @@
src = "unknown";
break;
}
- if (mod->mod_kobj != NULL) {
- kobj_stat(mod->mod_kobj, &maddr, &msize);
- } else {
+ if (mod->mod_kobj == NULL) {
maddr = 0;
msize = 0;
- }
+ } else if (kobj_stat(mod->mod_kobj, &maddr, &msize) != 0)
+ continue;
(*pr)("%16s %16lx %8ld %8s\n", mod->mod_info->mi_name,
(long)maddr, (long)msize, src);
}
--- src/sys/kern/subr_kobj.c 2009/05/26 08:34:23 1.38
+++ src/sys/kern/subr_kobj.c 2009/06/17 21:04:25 1.39
@@ -1,4 +1,4 @@
-/* $NetBSD: subr_kobj.c,v 1.38 2009/05/26 08:34:23 jnemeth Exp $ */
+/* $NetBSD: subr_kobj.c,v 1.39 2009/06/17 21:04:25 dyoung Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -63,7 +63,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: subr_kobj.c,v 1.38 2009/05/26 08:34:23 jnemeth Exp $");
+__KERNEL_RCSID(0, "$NetBSD: subr_kobj.c,v 1.39 2009/06/17 21:04:25 dyoung Exp $");
#include "opt_modular.h"
@@ -622,7 +622,7 @@
*
* Return size and load address of an object.
*/
-void
+int
kobj_stat(kobj_t ko, vaddr_t *address, size_t *size)
{
@@ -632,6 +632,7 @@
if (size != NULL) {
*size = ko->ko_size;
}
+ return 0;
}
/*
@@ -1126,11 +1127,11 @@
panic("not modular");
}
-void
+int
kobj_stat(kobj_t ko, vaddr_t *base, size_t *size)
{
- panic("not modular");
+ return ENOSYS;
}
int
--- src/sys/sys/kobj.h 2009/05/26 08:34:22 1.11
+++ src/sys/sys/kobj.h 2009/06/17 21:04:25 1.12
@@ -1,4 +1,4 @@
-/* $NetBSD: kobj.h,v 1.11 2009/05/26 08:34:22 jnemeth Exp $ */
+/* $NetBSD: kobj.h,v 1.12 2009/06/17 21:04:25 dyoung Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -36,7 +36,7 @@
int kobj_load_mem(kobj_t *, void *, ssize_t);
int kobj_affix(kobj_t, const char *);
void kobj_unload(kobj_t);
-void kobj_stat(kobj_t, vaddr_t *, size_t *);
+int kobj_stat(kobj_t, vaddr_t *, size_t *);
int kobj_find_section(kobj_t, const char *, void **, size_t *);
/* MI-MD interface. */