LEON2 and C++ exception handling

Chris Johns chrisj at rtems.org
Mon Aug 14 07:35:57 UTC 2017

On 14/8/17 4:04 pm, Mike Looijmans wrote:
> On 12-08-17 03:29, Chris Johns wrote:
>> On 11/8/17 10:14 pm, Mike Looijmans wrote:
>>> Is there maybe some other
>>> entry/register/variable that my boot code needs to pass to RTEMS?
>> Exceptions need valid tables registered with the unwinder to work or you end up
>> in the terminate call.
>> The SPARC architecture uses what is normally named dwarf2 tables that GCC places
>> in '.eh_frame' or '.gcc_except_table.*' sections. The tables linked into the
>> executable are registered with the exception handler code in libgcc and for C++
>> are processed using '__gcc_personality_v0' personality function. I cannot
>> remember how they are registered by default.
>> I hope this helps.
> Well, if I understand correctly, this just means that exception handling on
> LEON2 is just not implemented in RTEMS.

No, they should work. If you target's executable layout is not correct they will
not work.


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