[Lazarus] External: SIGSEGV

[Bogusław Brandys]

cc_ at freemail.hu wrote:
> 
> 
> Hi,
> 
>  
> 
>  
> 
> I have tried to google for "External: SIGSEGV" exception, but nothing 
> what came up helped.
> 

It's from gdb debugger . Search for "SIGSEV gdb" and I'm sure you will 
find much more.


> 
> Is there any detailed explanation about when this exception occurs?
> 
>  
> 
> In my program it  pops up when reading an unassigned (nil) object property:
> 
>  
> 
>   MyObject2_Var:= MyObject1.MyObject2;   (MyObject1.MyObject2 is nil)
> 
>  
> 
> The strange thing is that the assignment is in a try ... except block, 
> and the debugger does not stop at the breakpoints in the exception    
> handling part.


It may be a bug in gdb ..I don't know, but if debugger is trying to 
access some memory which MyObject2_Var is pointing to and it's not 
accessible then....



>  
> 
> I am totally clueless.
> 
Me too sometimes. Debugging with Lazarus under windows really need a 
total rebuild with native debugger, but it looks like hopeless wish now...

Regards
Boguslaw

> 
> Thanks for reading
> 
>  
> 
>   - Leslie -
> 
>  
> 
> 
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