Section alignment not set when libbfd is built for all targets

[Anthony DeRosa]

Hello all,

I am trying to build libbfd.a for *all* targets using the following commands:

tar -xjf binutils-2.21.1a.tar.bz2
cd binutils-2.21.1/bfd/
./configure --enable-targets=all --enable-64-bit-bfd
make

The build completes successfully, and I am able to link against the library.

The problem is, when I dump the section information of a given elf,
the alignment_power field of all sections is always zero (0).  (Note
the other section fields I have checked are correct, i.e., vma, lma,
name, size, etc.).

This problem does not happen when I link with a version of libbfd that
was built as part of binutils with a specific target (or use the
libbfd installed on my operating system).

Am I building incorrectly?

Below is a very simple test program that demonstrates the problem.

Usage is: ./program_below <some_elf>

-------------------------------------------

#include <stdlib.h>
#include <stdint.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>

#include <bfd.h>

int
main (int argc, char **argv)
{
    bfd *abfd;
    char *filename = NULL;
    char **matching;
    asection* section;


    if (argc < 2) {
        exit(1);
    }

    filename = argv[1];

    abfd = bfd_openr (filename, NULL);
    if (abfd == NULL) {
        printf("Failed to open\n");
        exit(1);
    }

    if (!bfd_check_format_matches (abfd, bfd_object, &matching)) {

        if (bfd_get_error () == bfd_error_file_ambiguously_recognized) {
            //list_matching_formats (matching);
            free (matching);
            exit(1);
        }
    }

    section = abfd->sections;

    while (section != NULL) {
        printf("%s 2**%u\n", section->name, section->alignment_power);
        section = section->next;
    }

    return 0;
}

-------------------------------------------

Thanks,

Anthony