RFA: Use _Unwind_Ptr (Was: Re: RFC / RFA: dwarf2 unwinding for targets with call-part-clobbered registers)

Richard Henderson rth@redhat.com
Wed Jul 9 21:26:00 GMT 2003


On Wed, Jul 09, 2003 at 01:34:20PM +0100, Joern Rennecke wrote:
> Do we have any targets besides sh64-elf -mb -m5-32media which are
> big endian, use dwarf2 unwinding, and have a wider _Unwind_Word than
> _Unwind_Ptr ?

MIPS n32.

But in that case we always save registers on the stack in word_mode,
so reading word_mode produces correct results.  Indeed, your change
will most certainly *break* MIPS.  I think we need something a bit
more complex than what you're currently proposing.


r~



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