Add C stubs to allow prints early in the boot code.

sys/arch/i386/stand/lib/Makefile

@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.32 2011/05/20 22:29:56 joerg Exp $
+#	$NetBSD: Makefile,v 1.33 2011/06/02 18:53:00 dsl Exp $
 
 S?=	${.CURDIR}/../../../..
 
@@ -46,7 +46,7 @@ SRCS+= pread.c menuutils.c parseutils.c
 SRCS+= bootinfo.c bootinfo_biosgeom.c bootinfo_memmap.c
 SRCS+= startprog.S multiboot.S
 SRCS+= biosgetsystime.S cpufunc.S bootmenu.c
-SRCS+= realprot.S message.S message32.S dump_eax.S pvcopy.S putstr.S
+SRCS+= realprot.S message.S message32.S dump_eax.S pvcopy.S putstr.S putstr32.S
 SRCS+= rasops.c vbe.c biosvbe.S
 .if (${I386_INCLUDE_DISK} == "yes")
 SRCS+= biosdisk.c biosdisk_ll.c bios_disk.S

sys/arch/i386/stand/lib/putstr32.S

@@ -0,0 +1,69 @@
+/*	$NetBSD: putstr32.S,v 1.1 2011/06/02 18:53:00 dsl Exp $	*/
+
+/*-
+ * Copyright (c) 20011 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by David Laight.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <machine/asm.h>
+
+/*
+ * Diagnostic print routines callable from 32bit C code during early
+ * parts of the boot process.
+ */
+
+/*
+ * void putstr(const char *)
+ *
+ * display message on serial port
+ */
+
+	.globl	_C_LABEL(putstr32)
+_C_LABEL(putstr32):
+	.code32
+	push	%esi
+	movl	8(%esp), %esi
+
+	call	message32
+
+	pop	%esi
+	ret
+
+/*
+ * void putint(int)
+ *
+ * display value on serial port as 8 hex digits followed by a space
+ */
+
+	.globl	_C_LABEL(putint32)
+_C_LABEL(putint32):
+	.code32
+	movl	4(%esp), %eax
+
+	call	dump_eax32
+
+	ret