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Re: [RFD] How to fix FRAME_CHAIN_VALID redefinition in config/i386/tm-i386v4.h ?
>
> Or we could fix this particular problem by making FRAME_CHAIN_VALID
> into a multi-arch method (just in case, and for hppa (?) which seemed
> to have a useful redefinition, though I don't see why it was needed),
> defaulting it to func_frame_chain_valid for all targets. No one ever
> gave me a reason not to do this when I asked.
Er, FRAME_CHAIN_VALID is a multi-arch method.
>> I suspect a combination of the first three is the best. The moment the
>> heuristic is pushed down to the target we end up with inconsistent,
>> target dependant, behavour.
>
>
> There's some interesting code along these lines in what Richard
> committed for ARM. He parses things like glibc's .note.ABI-tag
> section, as well as ELF_OSABI fields where set.
The situtation is very similar to COERCE_FLOAT_TO_DOUBLE. The problem
should be solved in a generic way. However, until then each target gets
to come up with a local solution.
Andrew