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From: Adriaan van Os
Subject: New (gpc-20060325)
Date: 29 Mar 2006, 12:19:00

>> Waldek Hebisch wrote:
>>
>>>  Adriaan van Os wrote:
>>>>  Waldek Hebisch wrote:
>>>>>  BTW: if the same happens with standalone program (without  
>>>>> modules)
>>>>>  I should be able to reproduce it.
>>>>
>>>>  Sorry, not clear to me what you mean.
>>>
>>>  I have build a cross-compiler targetting Mac OSX. However, I do not
>>>  have the complete toolchain (only bare compiler). Without full
>>>  toolchain I can not compile RTS (the problem really is  
>>> configure) and
>>>  also I can not compile anything using GPC module.
>>>
>>>  If you have a testcase which does not use GPC module (directy or
>>>  indirectly) I should be able to compile it. In fact, if a  
>>> program uses
>>>  no extra modules (units) at all debugging becomes easier.
>>>
>>>  I have tried the cross-compiler on various test programs and ATM it
>>>  happily produced stabs debug info.
>>
>> OK, I understand, I will look for a testcase (or try to isolate the
>> problem).
>
> Some observations:
>
> 1. the problem does not occur when running gpc directly rather than  
> with make, even when passing the same compiler switches (this  
> sounds like random behaviour and makes me think there is an  
> uninitialized variable somewhere in the compiler source code)
>
> 2. the problems disappears when I remove Turbo3 from the USES  
> clause in aturbo3test.pas
>
> 3. the problem persists when I reduce the Turbo3 unit to nothing but
>
> import
>
>        System (MemAvail => System_MemAvail,
>                MaxAvail => System_MaxAvail);
>
> Will try to further narrow this down in units/System.pas.

The problem disappears when I change

	type PMemList = ^PMemList;

to

	type PMemList = ^Pointer;

in the function MemAvail in units/system.pas. I think that explains  
it. Apparently the stabs symbol generator doesn't like the

	type PMemList = ^PMemList

declaration.

Regards,

Adriaan van Os

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