[Patch, microblaze]: Enable DWARF exception handling support

[David Holsgrove]

Add DWARF exception handling support for MicroBlaze.

Changelog

2013-03-18  Edgar E. Iglesias <edgar.iglesias@xilinx.com>
            David Holsgrove <david.holsgrove@xilinx.com>

 * common/config/microblaze/microblaze-common.c: Remove
   TARGET_EXCEPT_UNWIND_INFO definition.
 * config/microblaze/microblaze-protos.h: Add microblaze_eh_return prototype.
 * gcc/config/microblaze/microblaze.c: (microblaze_must_save_register,
   microblaze_expand_epilogue, microblaze_return_addr): Handle
   calls_eh_return
   (microblaze_eh_return): New function.
 * gcc/config/microblaze/microblaze.h: Define RETURN_ADDR_OFFSET,
   EH_RETURN_DATA_REGNO, MB_EH_STACKADJ_REGNUM, EH_RETURN_STACKADJ_RTX,
   ASM_PREFERRED_EH_DATA_FORMAT
 * gcc/config/microblaze/microblaze.md: Define eh_return pattern.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>

-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-Patch-microblaze-Enable-DWARF-exception-handling-sup.patch
Type: application/octet-stream
Size: 6337 bytes
Desc: 0001-Patch-microblaze-Enable-DWARF-exception-handling-sup.patch
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20130318/1c5dbe44/attachment.obj>