Hi,
I've written a library for reading/manipulating/writing elf files [1]
which I would like to be able to call from C code. I have successfully
compiled the ASDF package defining the library into a libelf.a library
using the following command.
(asdf:make-build :elf :type :lib :move-here "/home/eschulte/src/elf/")
While this seems to have been successful, and while I have been able to
manipulate generic ECL lisp objects from within C code, I can not figure
out how to access the lisp functions defined in this static library from
a file of C code.
My latest attempt is the following run.c file.
#include <ecl/ecl.h>
// first build a library with
// (asdf:make-build :elf :type :lib :move-here "/home/eschulte/src/elf/")
int main(int argc, char** argv){
cl_boot(argc, argv);
cl_object elf = (make_simple_base_string((char*)"ELF"));
cl_make_package(1, elf);
si_select_package(elf);
cl_eval(cl_list(2,
c_string_to_object("show-memory-layout"),
cl_eval(cl_list(2,
c_string_to_object("read-elf"),
c_string_to_object("\"hello32\"")))));
cl_shutdown();
return 0;
}
I can compile this file with the following
$ gcc -o run run.c -L. -lelf -lecl
however upon execution I get the following output in which the elf
package does not seem to be present.
,----
| READ-ELF
| Condition of type: UNDEFINED-FUNCTION
| The function ELF::READ-ELF is undefined.
|
| No restarts available.
|
| Top level.
| >
`----
Ideally I'd like to be able to call the lisp functions defined in the
elf package as C functions directly in C, however I have no idea what
their names are, or how to access them from the world of C.
And advice would be greatly appreciated.
Thanks -- Eric
Footnotes:
[1] http://gitweb.adaptive.cs.unm.edu/elf.git
--
Eric Schulte
http://cs.unm.edu/~eschulte/
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