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From: stark@sbcs.sunysb.edu (Eugene Stark)
Newsgroups: gnu.emacs,comp.sys.hp
Subject: Re: making Gnu Emacs on HP9000/340
Message-ID: <3391@sbcs.sunysb.edu>
Date: 23 Aug 89 13:56:26 GMT
References: <722@eecae.ee.msu.edu>
Sender: news@sbcs.sunysb.edu
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In-reply-to: harperb@eecae.ee.msu.edu's message of 22 Aug 89 17:06:24 GMT

In article <722@eecae.ee.msu.edu> harperb@eecae.ee.msu.edu (Brett Harper) writes:

>   I am currently trying to make Gnu Emacs 18.54 under HP-UX 6.5.  Things
>   seem to be going ok (with a few compilation warnings) until the linking
>   stage, when the following externals come up missing:
>      flag_fpa
>      fpa_loc
>      float_loc
>
>   Does anyone have any idea what these are, are better yet where they are?
>   I am using m-hp9000s300.h and s-hpux.h as recommended in etc/MACHINES.
>   If I should be making a different version of emacs, I can do that too.

I did this several months ago, and came across the same problem.
These things are variables and constants that are defined in a new C
run-time file that I think is called "end.o" or something, but I have
really forgotten now.  In any case, lacking the source to the HP C runtime
start up files, I looked at the object code with a debugger, and eventually
created the following file, which I called "hack.s":

	global float_loc
	set float_loc,0xFFFFB000

	global fpa_loc
	set fpa_loc,0xFFF08000

	bss
	global flag_fpa
flag_fpa:
	space 4*1

Linking this file in at the end of emacs makes things work.  I don't
really like to do stuff like this, but since HP chose not to supply source
for crt0.o and end.o, it was necessary to guess.

						Gene Stark
						SUNY at Stony Brook