[patch] C6X unwinding/exception handling

Mon Oct 10 10:33:00 GMT 2011

On 10/09/2011 12:09 PM, Matthias Klose wrote:
> This did break libobjc and libjava on arm-linux-gnueabi.
>> libobjc now has an undefined reference to _Unwind_decode_target2, which can be
> avoided with
>> --- libobjc/exception.c.orig 2011年07月21日 15:33:57.000000000 +0000
> +++ libobjc/exception.c 2011年10月09日 10:53:12.554940776 +0000
> @@ -182,7 +182,7 @@
> _Unwind_Ptr ptr;
>> ptr = (_Unwind_Ptr) (info->TType - (i * 4));
> - ptr = _Unwind_decode_target2 (ptr);
> + ptr = _Unwind_decode_typeinfo_ptr (info->ttype_base, (_Unwind_Word) ptr);
>> /* NULL ptr means catch-all. Note that if the class is not found,
> this will abort the program. */
>> libjava fails to build, the same change doesn't work for libjava/exception.cc,
> because the struct lsda_header_info in exception.cc is missing the ttype_base
> member. Any suggestions?

Is this fixable without backing out Paul Brooks' patch?
Andrew.