Re: [PATCH 2/2] Don't lose language determined from the "main" name (fix gdb.ada/minsyms.exp)

[Pedro Alves <palves@redhat.com>]

n 11/21/2017 05:15 PM, Sergio Durigan Junior wrote:
> On Tuesday, November 21 2017, Pedro Alves wrote:
> 
>> On 11/21/2017 04:42 PM, Pedro Alves wrote:
>>> On 11/21/2017 04:23 PM, Sergio Durigan Junior wrote:
>>
>>>> Since this is guaranteed to be an stap probe, WDYT about moving this
>>>> scoped_restore_current_language to
>>>> stap-probe.c:stap_evaluate_probe_argument?  This way we won't be bit by
>>>> this problem in other parts that also evaluate arguments of probes.
>>>>
>>>> Arguably, this should be set for every probe type IMHO, but it's fine if
>>>> we just do it for stap probes for now.
>>>
>>> That sounds like a good idea.  But we could do it in 
>>> evaluate_probe_argument then, which handles all probe types?
>>>
>>> [In your probe C++ification, that translates to evaluate_probe_argument
>>> becoming a  non-virtual method of probe, which then calls into a
>>> protected virtual method that is overridden by the actual probe
>>> implementation (see e.g., the do_xxx methods of class ui_out).]
>>
>> Hmm, maybe what we need instead is to make expression evaluation
>> never set the selected frame (and thus language as side effect)
>> if it wasn't selected/set already.  Like below.  This fixes
>> the testcase too.  I'll run the full testsuite now.  WDYT?
> 
> That does look better, indeed.  I was trying to think if we'd encounter
> any situation where setting the language is on of the desired effects,
> but couldn't think of any.

Alright, I've sent a v2 now.

Thanks,
Pedro Alves