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foreign loading C++ code
Allegro currently is set up for foreign loading of C or Fortran. I would
like to foreign load C++ code. Some questions:
1. Has anybody done this? If so, what problems occured? Was the effort
2. Does Franz plan to suport foreign loading of C++? If so, when?
3. One problem that I can think of is static initialization and destruction.
The Cfront C++ compiler handles static initialization by generating a
function with a name like _sti_xxxx for each file that is compiled.
Ordinarily, the C++ linker arranges for the static init functions that are
in a particular executable to be called at startup. Obviously when foreign
loading into lisp this does not happen.
It is easy enough to call the static initialization functions from lisp.
The problem is knowing what their names are. I have been working around the
problem by building a dummy executable and then doing something like
nm dummy | grep _sti_
to find the names. This technique is rather clumsy. One step towards a
solution would be a lisp function that lets me map through the entry points
in a lisp so as to find the ones that correspond to static initializers.
Any suggestions on how to do this?
Reasoning Systems Inc.