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Date: Fri, 5 Jan 1996 18:24:42 -0800 (PST)
From: Donald Burr <d_burr@ix.netcom.com>
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To: Steve Gibbard <scg@lawtech.com>
cc: questions@freebsd.org
Subject: Re: Problem building a new kernel
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On Fri, 5 Jan 1996, Steve Gibbard wrote:

> I'm trying to build a new kernel on my FreeBSD 2.1.0 machine.  The config
> and the make depend worked fine, but the make failed with the following
> error message: 
> 
> loading kernel
> kern_sysctl.o: Undefined symbol `_hw_float' referenced from text segment
> *** Error code 1

This makes the (approximately) 6.02e23'rd time I've seen this asked...

YOU DISABLED THE "npx0" DEVICE IN YOUR KERNEL CONFIG FILE.  THE "npx0" 
DEVICE IN THE KERNEL IS **NOT** OPTIONAL.  EVEN IF YOU DO NOT HAVE A 
FLOATING POINT UNIT IN YOUR COMPUTER, THIS IS STILL REQUIRED, BECAUSE IT 
INTERFACES TO THE SOFTWARE EMULATION CODE.

So, in short, put this line back in:

device		npx0 	at isa? port "IO_NPX" irq 13 vector npxintr

#define		SOAPBOX_MODE

I've asked this before, and I've seen others ask it too, but shouldn't 
there be a comment in the GENERIC and LINT kernel files (distributed with 
the kernel) to the effect of "the npx0 device is mandatory!!!"...

...OR, if the user disables it, either:

a) print a warning/error message when the user runs config, or
b) munge up the source code so that, if npx0 is commented out, it'll 
still work (and refer to the software emulator?)

#undef		SOAPBOX_MODE

Donald Burr [d_burr@ix.netcom.com], PO Box 91212, Santa Barbara CA 93190-1212
TEL (805)564-1871 / FAX 564-2315 / WWW http://www.geopages.com/WallStreet/2072
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