[patch] C6X unwinding/exception handling
Matthias Klose
doko@ubuntu.com
Mon Oct 17 11:01:00 GMT 2011
On 10/10/2011 02:23 PM, Paul Brook wrote:
>> Index: libjava/exception.cc
>> ===================================================================
>> --- libjava/exception.cc (revision 179739)
>> +++ libjava/exception.cc (working copy)
>> @@ -135,6 +135,7 @@
>> {
>> _Unwind_Ptr Start;
>> _Unwind_Ptr LPStart;
>> + _Unwind_Ptr ttype_base;
>> const unsigned char *TType;
>> const unsigned char *action_table;
>> unsigned char ttype_encoding;
>> @@ -184,7 +185,7 @@
>> _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);
>>
>> return reinterpret_cast<void **>(ptr);
>> }
>> @@ -325,6 +326,7 @@
>>
>> // Parse the LSDA header.
>> p = parse_lsda_header (context, language_specific_data, &info);
>> + info.ttype_base = base_of_encoded_value (info.ttype_encoding, context);
>> #ifdef HAVE_GETIPINFO
>> ip = _Unwind_GetIPInfo (context, &ip_before_insn);
>> #else
>
> No. The purpose of my patch was to remove the arm specific code.
>
> The only difference I can see in this bit of code is that libstdc++ uses
> base_of_encoded_value/read_encoded_value_with_base whereas libjava uses
> context/read_encoded_value.
>
> I expect you want something like the patch below (completely untested).
I checked the attached patch, test results at
http://gcc.gnu.org/ml/gcc-testresults/2011-10/msg01377.html
which are the same as with my suggested patch.
Ok for the trunk?
Matthias
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