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Re: [RFA] bfd/elf-eh-frame.c: return address column of CIE
On Thu, Aug 22, 2002 at 09:01:53PM +0100, Nick Clifton wrote:
> Hi Kaz,
>
> > The DWARF 2 draft says that the return address register column of
> > CIE of an eh_frame has the unsigned byte type. I've seen also that
> > gcc puts it as an unsigned byte. So
> > _bfd_elf_discard_section_eh_frame shouldn't use read_uleb128 when
> > reading it.
>
> Thanks for spotting it.
>
> > 2002-08-18 Kaz Kojima <kkojima@rr.iij4u.or.jp>
> >
> > * elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Use a simple
> > byte read when reading the return address register column.
>
> Approved and applied.
Unfortunately it is wrong, at least my Dwarf3-draft7-011029.pdf
says:
7. return_address_register
An unsigned LEB128 constant that indicates which column in the rule table represents the
return address of the function. Note that this column might not correspond to an actual
machine register.
In DWARF V2, this field is a ubyte.
Jakub