The following reply was made to PR kern/32450; it has been noted by GNATS.

From: Quentin Garnier <cube@cubidou.net>
To: gnats-bugs@netbsd.org
Cc: netbsdMLpost@quake.ca
Subject: Re: kern/32450: non-pci, pure 486-happy isa kernel doesn't depend/make
Date: Wed, 4 Jan 2006 08:45:37 +0100

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 On Wed, Jan 04, 2006 at 03:15:00AM +0000, netbsdMLpostNO@SPAM.quake.ca wrot=
 e:
 > >Number:         32450
 > >Category:       kern
 > >Synopsis:       building kernel without a large chunk of options (pci/et=
 c) fails.
 > >Confidential:   no
 > >Severity:       serious
 > >Priority:       medium
 > >Responsible:    kern-bug-people
 > >State:          open
 > >Class:          sw-bug
 > >Submitter-Id:   net
 > >Arrival-Date:   Wed Jan 04 03:15:00 +0000 2006
 > >Originator:     Marc Tooley
 > >Release:        NetBSD 3.99.15
 > >Organization:
 > >Environment:
 > System: NetBSD warp.sudog.com 3.99.15 NetBSD 3.99.15 (warp) #2: Mon Jan 2=
  11:57:09 PST 2006 root@warp.sudog.com:/usr/src-current/sys/arch/i386/compi=
 le/warp i386
 > Architecture: i386
 > Machine: i386
 > >Description:
 > 	The build environment is -current as of today or a day or two ago.=20
 > 	Essentially, using the kernel config listed below causes it to choke
 > 	because the wdc_isa code depends on functions which are listed in
 > 	sys/dev/ic/wdc.c which itself ends up not being included in the Makefile
 > 	and dependencies. The functions in specific are:
 >=20
 > 	#      link  BATTLE/netbsd
 > 	ld -T ../../../../arch/i386/conf/kern.ldscript -Ttext c0100000 -e start =
 -X -o netbsd ${SYSTEM_OBJ} ${EXTRA_OBJ} vers.o
 > 	wdc_isa.o(.text+0x119): In function `wdc_isa_probe':
 > 	: undefined reference to `wdc_init_shadow_regs'
 > 	wdc_isa.o(.text+0x155): In function `wdc_isa_probe':
 > 	: undefined reference to `wdcprobe'
 > 	wdc_isa.o(.text+0x336): In function `wdc_isa_attach':
 > 	: undefined reference to `wdc_init_shadow_regs'
 > 	wdc_isa.o(.text+0x34a): In function `wdc_isa_attach':
 > 	: undefined reference to `wdcintr'
 > 	wdc_isa.o(.text+0x376): In function `wdc_isa_attach':
 > 	: undefined reference to `wdcattach'
 > 	*** Error code 1
 >=20
 > 	It would appear that some recent work done to introduce these shadow
 > 	registers may have inadvertently made them dependent on options
 > 	which are there to support pci machines? Or perhaps I'm missing
 > 	something. It wouldn't be the first time.
 >=20
 > >How-To-Repeat:
 > 	. Update to 3.99.15 (most recent I could find) as of.. hrm.. Dec 31 05
 > 	anyway..
 > 	. Rebuild config, and install it.
 > 	. Use the following kernel config:
 >=20
 > 	include 	"arch/i386/conf/std.i386"
 > 	options 	INCLUDE_CONFIG_FILE	# embed config file in kernel binary
 > 	maxusers	4		# estimated number of users
 > 	options 	I486_CPU
 > 	options 	RTC_OFFSET=3D0	# hardware clock is this many mins. west of GMT
 > 	file-system 	FFS		# UFS
 > 	options 	INET		# IP + ICMP + TCP + UDP
 > 	options 	IPFILTER_LOG	# ipmon(8) log support
 > 	options 	WSDISPLAY_CUSTOM_OUTPUT	# color customization from wsconsctl(8)
 > 	options 	WS_KERNEL_FG=3DWSCOL_GREEN
 > 	options 	WSDISPLAY_CUSTOM_BORDER	# border customization from wsconsctl(8)
 > 	options 	WSDISPLAY_COMPAT_RAWKBD		# can get raw scancodes
 > 	options 	PCKBD_CNATTACH_MAY_FAIL
 > 	options 	PCDISPLAY_SOFTCURSOR
 > 	config		netbsd	root on ? type ?
 > 	mainbus0 at root
 > 	cpu* at mainbus?
 > 	isa0	at mainbus?
 > 	isapnp0 at isa?
 > 	npx0	at isa? port 0xf0 irq 13	# x86 math coprocessor
 > 	pckbc0		at isa?			# pc keyboard controller
 > 	pckbd*		at pckbc?		# PC keyboard
 > 	vga0		at isa?
 > 	wsdisplay*	at vga? console ?
 > 	wskbd*		at pckbd? console ?
 > 	pcppi0		at isa?
 > 	sysbeep0	at pcppi?
 > 	com0	at isa? port 0x3f8 irq 4	# Standard PC serial ports
 > 	com1	at isa? port 0x2f8 irq 3
 > 	lpt0	at isa? port 0x378 irq 7	# standard PC parallel ports
 > 	wdc0	at isa? port 0x1f0 irq 14 flags 0x00
 > 	fdc0	at isa? port 0x3f0 irq 6 drq 2	# standard PC floppy controllers
 > 	fd*	at fdc? drive ?			# the drives themselves
 > 	ep*	at isa? port ? irq ?			# 3C509 ethernet cards
 > 	iy0	at isa? port 0x360 irq ?		# EtherExpress PRO 10 ISA
 > 	ne1	at isa? port 0x300 irq 10
 > 	include	"arch/i386/conf/GENERIC.local"
 > 	pseudo-device	bpfilter	8	# Berkeley packet filter
 > 	pseudo-device	ipfilter		# IP filter (firewall) and NAT
 > 	pseudo-device	loop			# network loopback
 > 	pseudo-device	sl		2	# Serial Line IP
 > 	pseudo-device	tun		4	# network tunneling over tty
 > 	pseudo-device	pty			# pseudo-terminals
 > 	pseudo-device	rnd			# /dev/random and in-kernel generator
 > 	pseudo-device	clockctl		# user control of clock subsystem
 > 	pseudo-device	wsmux			# mouse & keyboard multiplexor
 > 	pseudo-device	wsfont
 > 	pseudo-device	ksyms			# /dev/ksyms
 >=20
 > 	cd /usr/src-current/sys/arch/i386/conf
 > 	config MYKERN
 > 	cd ../compile/MYKERN
 > 	make depend && make
 >=20
 > 	... and eventually end up with the error messages up above about
 > 	shadow registers.
 >=20
 > >Fix:
 > 	I wish I knew. I modified the Makefile to include the dev/ic/wdc.c
 > 	file but then it started whining about missing atabus symbols during
 > 	the final link.
 
 You don't have a 'wd* at wdc?' line, that's probably the immediate cause
 of the error.  Nevertheless, it shouldn't happen.  But at least as it
 is, the wdc line is useless.
 
 --=20
 Quentin Garnier - cube@cubidou.net - cube@NetBSD.org
 "When I find the controls, I'll go where I like, I'll know where I want
 to be, but maybe for now I'll stay right here on a silent sea."
 KT Tunstall, Silent Sea, Eye to the Telescope, 2004.
 
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