Re: Dynamic compilation/linking

whatis@ucsd.edu (Steve Boswell) writes:


>I'm currently working on an extendible compiler, so I can experiment with
>different language ideas. It's based on C, for its low-level abilities.
>I'd like to compile a given piece of code into machine code and have it in
>some buffer in memory, then call it. Additionally I'd like to be able to
>read code in from disk and run it.


I've been looking around in the man-pages on our SunOs 4.1 system for any
information on this subject. Well burried in section 3, without many
references to it, four functions are mentioned: dlopen, dlclose, dlerror
and dlsym. These function should apparantly be a simple interface to
dynamically loading object files. However I haven't been able to get my
example to run, I suspect it has something to do with my inability to get
'ld' run on the file with a '-A' option. Have anybody had any experiences
with theese functions and 'ld'?


Torben Bang Nielsen
Copenhagen, Denmark
tbn@csd.cri.dk
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