Re: Broken objdump in binutils-2.23.1 for DJGPP (coff-go32) ( bfd_find_nearest_line_discriminator).

[Tristan Gingold <gingold at adacore dot com>]

On Dec 13, 2012, at 10:16 PM, Juan Manuel Guerrero wrote:

> A couple of days ago I compiled binutils-2.23.1 for DJGPP (coff-go32).
> The produced objdump program does not work as it used to work in binutils-2.22.
> If the -S and/or -l options are given no debug information like line numbers or
> code lines are shown.  Only assembler code is displayed.  An inspection of
> objdump.c shows that in function show_line the line:
> if (! bfd_find_nearest_line (abfd, section, syms, addr_offset, &filename,
> has been changed to:
>  if (! bfd_find_nearest_line_discriminator (abfd, section, syms, addr_offset,
> 
> A futher inspection of libbfd.c shoows that _bfd_generic_find_nearest_line_discriminator
> always returns false inhibiting the output of line numbers and code lines.
> An inspection of the bfd repository shows that coff_find_nearest_line_discriminator
> has been implemented in coffgen.c revision 1.85 (2012-10-18).
> Was it intentional that this fix was not committet into binutils-2.23.1?
> There may be other users of plain COFF systems that will have broken objdump
> and addr2line programs.

You should check with the head version.
Indeed, addr2line has been broken on several (most non-ELF ?) targets, and some have
been already fixed.

Tristan.