This is the mail archive of the
mailing list for the binutils project.
Re: ld corrupting .cfi_label uses
>>> On 08.03.17 at 22:52, <firstname.lastname@example.org> wrote:
> On Wed, Mar 08, 2017 at 07:33:07AM -0700, Jan Beulich wrote:
>> >>> On 08.03.17 at 15:12, <email@example.com> wrote:
>> > On Fri, Mar 03, 2017 at 01:37:17AM -0700, Jan Beulich wrote:
>> >> My problem here is that I don't see any way to know whether
>> >> there are symbols (including local ones, but excluding the
>> >> section one) or relocations referring to a particular section
>> >> (other than going through the raw object file of course), for
>> >> easy checking in _bfd_elf_write_section_eh_frame(), or
>> >> even better already in _bfd_elf_parse_eh_frame_entry().
>> > Here's a prototype patch. It hasn't had much testing, and needs a few
>> > testcases added, particularly for labels in odd parts of a CIE or FDE.
>> > If you could run with this, that would be good.
>> Thanks for doing this, but going over the patch I can't seem to spot
>> where (generally section symbol relative) relocations are being
>> taken care of. Am I simply overlooking something? I ask because
>> that's the main problem for my use case, whereas symbols don't
>> really matter for the moment (I simply didn't have a need to create
>> any so far).
> The S_FORCE_RELOC change will result in relocations against local
> symbols not being converted to relocations against a section symbol,
> and it should also result in a reloc beins emitted even for references
> within .eh_frame. (The latter is one of the things I haven't tested.
> There will be a reloc if the reference crosses a frag, I'm not so sure
> if within the same frag. Also, the section test may need to be
I'm sorry for not having got back to you on this so far. The issue
I've run into here is in a sideband project of mine, and for now I
can't really predict when I'll be able to spend some more time on