Re: [ZEND-ENGINE-CVS] cvs: ZendEngine2(PHP_5_3) / zend.c zend_execute_API.c zend_vm_def.h zend_vm_execute.h php-src NEWS

Another idea: In case xdebug overwrites zend_execute() it can set 
EG(return_value_ptr_ptr) to point to some local variable then call 
original executor and then print pass return_value to caller or destroy 
it dependent on previous value of EG(return_value_ptr_ptr).

Thanks. Dmitry.

Derick Rethans wrote:
> On Fri, 11 Apr 2008, Dmitry Stogov wrote:
> 
>> Sorry, but I think mainly about PHP performance, and of course I didn't know
>> that you trace return_values it in xdebug.
>>
>> After the patch, in case if return value is not used we set
>> EG(return_value_ptr_ptr) to NULL before call to nested execute().
>> I assume you can just check for (EG(return_value_ptr_ptr)==NULL) before write
>> it. Will it work for you?
> 
> I'm already doing that, so not went really wrong. I am just wondering 
> whether it would be possible to always have those return values there 
> through some kind of option.
> 
> regards,
> Derick
>