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

[Alexandre Oliva]

On Jul  9, 2003, Joern Rennecke <joern.rennecke@superh.com> wrote:

> For sh64-elf, registers 10 to 14 and 18 are saved as 32 bit, yet their
> reg_raw_mode is DImode.  using reg_raw_mode in
> expand_builtin_init_dwarf_reg_sizes means that extra data is clobbered
> on little endian, and for big endian, the restored values are completely
> garbled.

Talking of dwarf2 EH in sh64-elf...  Do you have any plans on how to
address linking a mixed 32media/compact application with a SHcompact
library?  When throw is compiled in compact mode, it can't possibly
restore SHmedia-only registers.  Are you just going to take this as a
`if it hurts, don't do it' case?

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                 aoliva@{redhat.com, gcc.gnu.org}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist                Professional serial bug killer