Re: parisc: unwind tables and backtraces broken?

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On Tue, Jul 7, 2009 at 2:33 PM, John David
Anglin<dave@xxxxxxxxxxxxxxxxxx> wrote:
>> Interestingly, this problem showed up to me now since I updated my 32- and
>> 64bit crosscompilers to 4.3.3 (and binutils of course).
>> I used (on 32bit) the gcc-3.3 before and this one doesn't exibited the
>> problem of buggy unwind tables (with the existing/same kernel source code).
>
> GCC doesn't know anything about PA-RISC unwind info.  It's generated by the
> assembler from assembler directives.  So, I think it's unlikely that the
> problem is in GCC.
>
> Your comments about dead-code elimination by the linker make me wonder
> if that isn't the problem.

Helge,

Are you compiling with --gc-sections? Try without?

I've seen at least one problem in the past on another target where
garbage collection would not correctly update debug information.

Cheers,
Carlos.
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