[gdal-dev] Debugging on Windows Using Visual Studio

Ivan Lucena ivan.lucena at pmldnet.com
Tue Dec 23 02:41:10 EST 2008


Joel,

You could try to update the source code tree in your makegdal80.vcproj 
file by running makegdal_gen.bat. Be aware that it will overwrite your 
project's debugging and nmake options. The OPTFLAGS and the .pdb 
generation will not be affect by that but I think that by updating the 
source code tree VS will be able to perform step-into (F11) better. Not 
sure.

Regards,

Ivan


Joel Odom wrote:
> Problem solved.  For the benefit of the group and the searchable list
> archives, I'll describe here what was going on.
> 
> My build on Windows, using makegdal80.sln, was generating a gdal15.dll
> with symbols and gdal15.pdb file.  For whatever reason, these files
> did not contain sufficient information for me to step in to the code
> in a debug session.  After poking around for some time, I found that
> the OPTFLAGS in nmake.opt were set to the optimized build.  I'm not
> sure why I was seeing the debug symbols loading, but changing OPTFLAGS
> to generate a gdal.pdb (along with the gdal15.pdb) gave me the debug
> information I needed.  (In 1.6.0, the OPTFLAGS is set for debug when
> DEBUG is defined, which seems to make more sense.)
> 
> 
> 
> On Fri, Dec 19, 2008 at 11:22 AM, Joel Odom <joelodom at gmail.com> wrote:
>> More notes on the issue below.
>>
>>
>> ---------- Forwarded message ----------
>> From: Joel Odom <joelodom at gmail.com>
>> Date: Fri, Dec 19, 2008 at 11:21 AM
>> Subject: Re: [gdal-dev] Debugging on Windows Using Visual Studio
>> To: Frank Warmerdam <warmerdam at pobox.com>
>>
>>
>> I'm building from makegdal80.sln.  I'm also starting my debug sessions
>> from this same solution.  I'm getting symbols in gdal15.dll and the
>> .pdb file, but I still can't set a break point anywhere.  It's like
>> the debug symbols don't map correctly to the source code.
>>
>> I'm wondering if there is some flag in the makefile options that is
>> not being set, so the program debug information is incomplete?  I am
>> able to set a break point in my dll that calls gdal, but not anywhere
>> in the gdal methods.  Again, this is all in VS 2005.  I'll post an
>> answer here if I figure out the problem before I give up, but if
>> anyone has any ideas, I'd appreciate it.
>>
>>
>>
>> On Fri, Dec 19, 2008 at 11:10 AM, Frank Warmerdam <warmerdam at pobox.com> wrote:
>>> Joel Odom wrote:
>>>> Bruce.  I'm trying to debug an app that uses GDAL from unmanaged C++
>>>> on Visual Studio 2005.  I've tried for an hour or two to step into
>>>> gdal, running debug sessions both from the project file from which I
>>>> build gdal and from the app that calls into GDAL, but even when I run
>>>> from the gdal solution itself, it still doesn't let me step through
>>>> source code, even though the modules window says gdal15.dll is loaded
>>>> with symbols from the same location as my .pdb file.
>>> Joel,
>>>
>>> I have generally not had problems with this.  Did you build GDAL using
>>> the nmake files or the solution?  I've had good luck debugging the
>>> utilities and into GDAL itself with visual studio. I normally run things
>>> from the commandline and pop into visual studio when things crash (even
>>> triggering crashes at select points).
>>>
>>> This is usually with visual studio 2003.
>>>
>>> Best regards,
>>> --
>>> ---------------------------------------+--------------------------------------
>>> I set the clouds in motion - turn up   | Frank Warmerdam,
>>> warmerdam at pobox.com
>>> light and sound - activate the windows | http://pobox.com/~warmerdam
>>> and watch the world go round - Rush    | Geospatial Programmer for Rent
>>>
>>>
>>
>>
>> --
>> http://giscoder.blogspot.com/
>>
>>
>>
>> --
>> http://giscoder.blogspot.com/
>>
> 
> 
> 



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