[Qt] Fwd: Change in qt45.pas

[Vincent Snijders]

Den Jean,

This is the conversation I had with Martin about the change in qt45.pas.

Vincent


---------- Forwarded message ----------
From: Martin <lazarus at mfriebe.de>
Date: 2011/4/14
Subject: Re: Change in qt45.pas
To: Vincent Snijders <vincent.snijders at gmail.com>


On 14/04/2011 12:21, Vincent Snijders wrote:
>
> 2011/4/14 Martin<lazarus at mfriebe.de>:
>>
>> On 14/04/2011 07:50, Vincent Snijders wrote:
>>>
>>> Hi Martin,
>>>
>>> I don't know if you are subscribed to the qt list, but can you give
>>> more information about
>>>
>>> http://svn.freepascal.org/cgi-bin/viewvc.cgi?view=rev&root=lazarus&revision=25368
>>>
>>> See
>>> http://lists.lazarus.freepascal.org/pipermail/qt/2011-April/001670.html
>>> and further in that thread.
>>
>> No I am not on the QT list. Thanks for forwarding.
>>
>> http://bugs.freepascal.org/view.php?id=16448
>>
>> That's all I could find... Don't remember much unfortunately.
>
> Seems to be another range check, that you fixed there:
> http://svn.freepascal.org/cgi-bin/viewvc.cgi?diff_format=l&view=rev&root=lazarus&revision=25385
>
> Vincent

Hm, it's the only think I could find. And it had the revision number
in the "fixed in rev".

All I remember (and that only after I found the bur report), is that I
had problems with various range check errors.
So apparently, I must have eventually traced a call to this function,
that had a nil pointer.

Setting breakpoints shows the code is still reached, but gdb cannot
backtrace through the qt libs...
#0 GETPTRINTARRAYADDR(0xa00fd24) at qt\qt45.pas:13870
#1 ?? at :0
#2 ?? at :0
#3 ?? at :0

stepping out all the way, eventually got me here:
#0 GETACTIONBYINDEX(0xeb68c60, 0) at qt\qtwidgets.pas:3520
#1 INSERTMENU(0xeb68c60, 0, 0xc638438) at qt\qtwidgets.pas:11416
#2 ATTACHMENU(0xf0d94a0, 0xf1292a8) at qt\qtwsmenus.pp:101
#3 CREATEHANDLE(0xf1292a8) at include\menuitem.inc:134
#4 HANDLENEEDED(0xf1292a8) at include\menuitem.inc:628
#5 INSERT(0xf128ac8, 0, 0xf1292a8) at include\menuitem.inc:785
#6 UPDATEMENUSTRUCTURE(0xe967a78) at menuintf.pas:1152
#7 SETMENUITEM(0xe967a78, 0xf128ac8) at menuintf.pas:1595
#8 SETUPMAINMENU(0x2e6df8) at main.pp:2350
#9 CREATE(0x2e6df8, 0xb57ae8, 0x2a6e90) at main.pp:1377
#10 main at lazarus.pp:107


This is during IDE start up

Martin