[RFC] Use address_from_register in dwarf2-frame.c:read_addr_from_reg

Ulrich Weigand uweigand@de.ibm.com
Thu Aug 28 11:51:00 GMT 2014


Maciej W. Rozycki wrote:
> On Wed, 27 Aug 2014, Ulrich Weigand wrote:
> > I guess it isn't too hard to support gdbarch_convert_register_p in that
> > routine as well; I just didn't have any target to test on.
> > 
> > Can you try whether something along the following lines works for you?
> 
>  I'll see if I can push it through testing, though it may take a few days 
> as some of MIPS hardware I use (and especially 64-bit one) is slooow (and 
> I already have a test run under way).

Thanks!
 
>  I'd expect the issue to be consistent across all ILP32 64-bit ABIs BTW, 
> that is e.g. x32 x86-64 as well.

Well, I guess that depends on whether the hardware expects 32-bit pointer
values to be sign-extended when loaded in 64-bit registers or not.  I don't
think x32 x86-64 requires this sign-extension (but I'm certainly not an
expert here) ...

Bye,
Ulrich

-- 
  Dr. Ulrich Weigand
  GNU/Linux compilers and toolchain
  Ulrich.Weigand@de.ibm.com



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