Re: FW: dwarf2 error(microblaze)

[naga raj <gnuuser dot raj at gmail dot com>]

Hi Mike

On Wed, Jun 22, 2011 at 8:38 PM, Michael Eager <eager@eagerm.com> wrote:
> On 06/22/2011 05:13 AM, naga raj wrote:
>
>> Investigating the same issue further. I found that issue is in linker.
>>
>> ? My issue is that, after compiler generates assembly instructions,
>> ? linker is relaxing few of the instruction and up to this part it is
>> fine.
>> ? But my linker is not decreasing relaxed instructions space as a
>> result debug_loc locations in the dwarf2 debugging information is
>> displaying ?the address ranges that are generated by
>> compiler(including relaxed instruction spaces).
>> ? So due to this my debugging information is getting corrupted with
>> wrong addresses.
>
> Sounds like a possible cause.
>
>> ? I know this is a known issue in linker relaxation, but as a newbie
>> to binutils I could not figure it out where to change in my code.
>
> What known issue?
>
>> ? I am using Xilinx Microblaze target with Binutils version 2.21.
>>
>> ?Please help in resolving this issue. Please point me to any material
>> or existing port(patch).
>
> There's no existing patch; this appears to be a new problem.
>
> The relaxation code is in binutils/bfd/elf32-microblaze.c in
> microblaze_elf_relax_section(). ?You will need to find out if
> it isn't handling the relocations correctly, not moving code
> correctly, incorrectly adjusting the fixup value, or perhaps
> some other reason why the relaxed address is computed incorrectly.

Thanks for information. I will look in to it and get back to you if required.
> --
> Michael Eager ? ?eager@eagercon.com
> 1960 Park Blvd., Palo Alto, CA 94306 ?650-325-8077
>

Thanks
Nagaraju