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From: levy@ttrdc.UUCP (Daniel R. Levy)
Newsgroups: net.lang.c,net.unix-wizards,net.arch
Subject: Re: (3b2) functions in data space
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Date: Tue, 18-Mar-86 04:20:24 EST
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Posted: Tue Mar 18 04:20:24 1986
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Small addendum to my previous posting:

I must give credit to Ehud Reiter (harvard!reiter) for the idea
on how to do this (he answered my question as to how it was accomplished in
Fortran, and I tried it in both f77 and C, and it worked).

I am sure that I am indeed running the data space rather than just capturing
a pointer to the text space, since in another version of the test program I
did a dump of the buffer, which compared identically to a dis(1) disas-
sembly of the LINKED executable section that I copied.

Maybe it would be a good idea to have a "dummy function" which would be copied
into an array then modified as needed, to avoid the nitty gritty problems of
the final linking?  (I noticed that a disassembly of the object [.o] file
was a little different than the linked version, having places where ld(1)
evidently must "fill in the blanks" to have a valid sequence of code when
all external symbols are resolved.)
-- 
 -------------------------------    Disclaimer:  The views contained herein are
|       dan levy | yvel nad      |  my own and are not at all those of my em-
|         an engihacker @        |  ployer or the administrator of any computer
| at&t computer systems division |  upon which I may hack.
|        skokie, illinois        |
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