Re: Sparc RELA incorrect addend

[Neil Mayes <neil.mayes@googlemail.com>]

Hi,

On closer inspection it's a little worse. I have a local global
variable which is located in .data @ 0x020005AC whereas the rela tells
me its within the .text section. Symbol value == 0x02000000 (.text
vitual address) with an addend == 0x020005AC, which is actually the
absolute address. Looking through binutils I can see for a global
symbol there is the following comment:

/* To avoid generating warning messages about truncated relocations,
set the relocation's address to be the same as the start of this
section.  */

It's strange that it's not got the correct section ID as well as an
incorrect addend. If I turn it into a global global everything is OK
with addend set to zero.

This is using GNU ld (GNU Binutils) 2.18
  Supported emulations:
   elf32_sparc

Thanks,
Neil



2009/2/17 Neil Mayes <neil.mayes@googlemail.com>:
> Hi,
>
> I am implementing a dynamic task loader for RTEMS using a Sparc ERC32.
> I have been looking in what is invloved and what I need to do in order
> to relocate the code however I have seen the relocations which use an
> addend are incorrect, the addend is the absolute value not the offset
> from the symbol value. I have had a look at the bugs but can't find
> this one.
>
> Has anyone any knowledge of this issue?
>
> I am using GCC version 4.2.2
>
> Thanks,
> Neil
>