[src/trunk]: src/usr.sbin/crash/arch i386 does not have a variable min addres...

[christos <christos%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ae9031fb5e12
branches:  trunk
changeset: 365344:ae9031fb5e12
user:      christos <christos%NetBSD.org@localhost>
date:      Sun Aug 12 16:00:41 2018 +0000

description:
i386 does not have a variable min address (yet)

diffstat:

 usr.sbin/crash/arch/x86.c |  10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)

diffs (48 lines):

diff -r 91f9ebb62d3f -r ae9031fb5e12 usr.sbin/crash/arch/x86.c
--- a/usr.sbin/crash/arch/x86.c Sun Aug 12 15:55:26 2018 +0000
+++ b/usr.sbin/crash/arch/x86.c Sun Aug 12 16:00:41 2018 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: x86.c,v 1.3 2018/08/12 15:55:26 christos Exp $ */
+/*     $NetBSD: x86.c,v 1.4 2018/08/12 16:00:41 christos Exp $ */
 
 /*-
  * Copyright (c) 2009 The NetBSD Foundation, Inc.
@@ -31,7 +31,7 @@
 
 #include <sys/cdefs.h>
 #ifndef lint
-__RCSID("$NetBSD: x86.c,v 1.3 2018/08/12 15:55:26 christos Exp $");
+__RCSID("$NetBSD: x86.c,v 1.4 2018/08/12 16:00:41 christos Exp $");
 #endif /* not lint */
 
 #include <ddb/ddb.h>
@@ -47,11 +47,15 @@
 
 #include "extern.h"
 
+#ifdef VM_MIN_KERNEL_ADDRESS_DEFAULT
 vaddr_t vm_min_kernel_address = VM_MIN_KERNEL_ADDRESS_DEFAULT;
+#endif
 
 static struct nlist nl[] = {
        { .n_name = "_dumppcb" },
+#ifdef VM_MIN_KERNEL_ADDRESS_DEFAULT
        { .n_name = "vm_min_kernel_address" },
+#endif
        { .n_name = NULL },
 };
 
@@ -68,11 +72,13 @@
            sizeof(pcb)) {
                errx(EXIT_FAILURE, "cannot read dumppcb: %s", kvm_geterr(kd));
        }
+#ifdef VM_MIN_KERNEL_ADDRESS_DEFAULT
        if ((size_t)kvm_read(kd, nl[1].n_value, &vm_min_kernel_address,
            sizeof(vm_min_kernel_address)) != sizeof(vm_min_kernel_address)) {
                errx(EXIT_FAILURE, "cannot read vm_min_kernel_address: %s",
                    kvm_geterr(kd));
        }
+#endif
         ddb_regs.tf_sp = pcb.pcb_sp;
         ddb_regs.tf_bp = pcb.pcb_bp;
         if (ddb_regs.tf_bp != 0 && ddb_regs.tf_sp != 0) {