Home Original page

merging executables

Jan Hoogerbrugge hoogerbrugge@hotmail.com
Fri Feb 15 05:16:00 GMT 2002 
Hi,

I want to use libbfd to merge multiple ELF executables into one. Just 
copying the sections of a few input files to an output file. I wrote the 
following code, which does not work for some reason. It core dumps in 
bfd_copy_private_section_data. Any idea why??

Cheers,
Jan
-----

#include <strings.h>
#include <stdio.h>
#include <stdlib.h>
#include <bfd.h>
#include <assert.h>

main(int argc, char *argv[])
{
        char sec_out_name[1024];
        bfd *bfd_in, *bfd_out;
        asection *sec_in, *sec_out;
        int i;

        bfd_init();

        bfd_out = bfd_openw(argv[1], "elf32-big");

        assert(bfd_out != NULL);

        for(i = 2; i < argc; i++)
        {
                bfd_in = bfd_openr(argv[i], "elf32-big");

                assert(bfd_in != NULL);

                bfd_check_format(bfd_in, bfd_object);

                for(sec_in = bfd_in->sections; sec_in; sec_in = 
sec_in->next)
                {
                        sprintf(sec_out_name, "%s_%d", sec_in->name, i - 1);

                        sec_out = bfd_make_section_anyway(bfd_out, 
strdup(sec_out_name));

                        assert(sec_out != NULL);

                        bfd_copy_private_section_data(bfd_in, sec_in,
                                                      bfd_out, sec_out);
                }

                bfd_close(bfd_in);
        }

        bfd_close(bfd_out);

        return 0;
}


_________________________________________________________________
Join the worldÂ’s largest e-mail service with MSN Hotmail. 
http://www.hotmail.com
More information about the Binutils mailing list