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Re: [cdt-dev] Possible to use the qtc-debugging-helper (Either DSF/CDI)

<minor_rant>
oooh. I know one that might work better. IDB (Intel Debugger) which Intel supports on OS X through their C/C++ compilers, except that they only support it through Xcode which is _very_ reasonable to do for OS X. I Just wonder how much trouble it would be since Intel sells an Eclipse Integration/plugin for IDB to use under Linux.
</minor_rant>
And YES. I would shell out the money in a Heart-beat.

___________________________________________________________
Mike Jackson


On Apr 9, 2010, at 1:45 PM, <Warren.Paul@xxxxxxxxx> wrote:

Maybe I'm misunderstanding the main issue, probably because I'm mostly Mac-ignorant. Michael's comment was

"I forgot to mention that I am on "that troublesome platform, OS X", where the only GDB that seems to work is the one from Apple which is like version 6.3 or something like that so using the Python Pretty Printers will not work for this particular platform."

I took this to mean you can't use GDB 7.0 (DSF or CDI) on Mac.

+1 on your call for end-user feedback.

Thanks,
Warren


-----Original Message-----
From: cdt-dev-bounces@xxxxxxxxxxx
[mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of ext
Marc-Andre Laperle
Sent: Friday, April 09, 2010 12:23 PM
To: CDT General developers list.
Subject: Re: [cdt-dev] Possible to use the
qtc-debugging-helper (Either DSF/CDI)

I could give the TCF agent a shot for 7.1/8.0, but I feel that
contributing to a third debugger will be counter productive. I
want to help with what's best for the users. DSF-GDB works
well on Mac with version 7.0 and CDI is also pretty good so I
think it's tempting to maintain it for a while. What's the
plan for EDC? Would it replace DSF-GDB as the primary debugger
some day? Would a Mac agent benefit a product outside CDT ?
I'm trying to prioritize here.

Speaking of prioritizing, I think CDT 7.1/8.0 needs a clear
plan early on. If CDT wants to be an end-user IDE, it has to
bring back a balance between the what the companies and
end-users want. The summit will be great for CDT as a platform
but there should be more input from end-users. A mailing list
and bugzilla are hardly a good place for user input. I think a
poll on the CDT site would be a good start. It could be
advertised on Doug's blog (Planet Eclipse exposure) and Twitter, etc.

It could be something like this:

"What would you like to be the focus in the next major CDT release?
Select up to 3 items.

-Improvements to the UI, usability and user documentation
-Integration with other build systems -Integration with other
compilers and debuggers -More Refactorings and Source
generation -More debugging features -Improvements to the build
system -Improvements to the editor and source navigation
-General bug fixes -More code analysis -Better APIs for CDT
vendors -Better documentation in CDT code -Better performance
-Better stability

Please add some details to what you selected. For example, if
you selected 'Integration with other build systems', please
specify which build systems.
<a text area>"

What do you think?

Marc-Andre

On 10-04-09 11:37 AM, Warren.Paul@xxxxxxxxx wrote:
As I said, our team will add Qt support to the EDC
formatter, so the only missing piece for you then would be the
Mac TCF agent.  I'm not sure if anyone has considered writing
such an agent yet or not, but this is probably the right forum
to ask the question.  :)  I'm not a Mac guy so I can't say how
much work that would be, but if the OS has any debug support
(run control, memory/register access, breakpoints, etc), it
shouldn't be too much effort.

Thanks,
Warren



-----Original Message-----
From: cdt-dev-bounces@xxxxxxxxxxx
[mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of ext
Michael Jackson
Sent: Friday, April 09, 2010 10:06 AM
To: CDT General developers list.
Subject: Re: [cdt-dev] Possible to use the qtc-debugging-helper
(Either DSF/CDI)

Thanks for the info. At _some_ level it would seem to be
possible to
add the functionality (even if it is a plugin of some
kind). It would
seem that the qtc-debugging-helper library sends back a
response to a
gdb request for the "value"
or maybe the QtCreator gdb wrapper figures out that the
user wants to
look at a QString and then asks the library to dump the values and
such based on the pointer? Dunno. Can't really follow along. I may
inquire on the QtCreator Mailing list garner some more info.

--
Mike Jackson<www.bluequartz.net>

On Apr 9, 2010, at 10:36 AM,<Warren.Paul@xxxxxxxxx>  wrote:


We've designed a powerful variable formatter in EDC which does the
basics like being able to change the display in the details

pain, but

also optionally allowing the children of the variable to be

changed as

well.  It also will allow (not fully implemented yet)
modifying the
value in formatted form.  We will have support for Qt
types in this
solution (also not yet implemented).

Unfortunately I don't think this does much to help you out
since EDC
doesn't currently work on Mac, only Windows and Linux.  It
would be
great to have someone do a TCF debug agent on Mac though.
:)  Maybe
you can focus your time on that and we'll provide the Qt
formatting
aspect?

I should mention that we really wanted to and tried to make this
feature non-EDC specific, but there were some technically

reasons why

it wouldn't work that I can't recall right now. :)  It may be that
only some of it is EDC specific, I'm not sure.  David Dubrow might
chime in if he's listening.

Thanks,
Warren



-----Original Message-----
From: cdt-dev-bounces@xxxxxxxxxxx
[mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of ext

Michael Jackson

Sent: Friday, April 09, 2010 9:20 AM
To: CDT General developers list.
Subject: Re: [cdt-dev] Possible to use the qtc-debugging-helper
(Either DSF/CDI)

I forgot to mention that I am on "that troublesome platform, OS X"
where the only GDB that seems to work is the one from Apple

which is

like version 6.3 or something like that so using the
Python Pretty
Printers will not work for this particular platform.

Now obviously since QtCreator does this sort of thing DSF

GDB should

be able to be made to do it also. I just have absolutely NO idea
where I would start looking. Even a hacked together proof

of concept

would motivate me to spend some late nights getting something
together.

--
Mike Jackson<www.bluequartz.net>

On Apr 9, 2010, at 10:13 AM, Elmenthaler, Jens wrote:


If you use gdb, you might want to check the python
pretty printers
being supported by gdb 7.0 and later.

It effectively means to translate your qtc-debugging-helper

library to

python pretty printers, but this might be valuable anyway.

Both gdb integrations (DSF GDB would require the
upcoming CDT 7.0)
have basic support for the pretty printers. Basic support

means the

info provided by the pretty printers appears in the

details pane of

variables and expressions view. But the children and

variables are not

the ones provided by the pretty printers.

I'm working on fully enabling them in the variables and

expressions

view (bug302121). That, however, will only work in DSF GDB.

Jens.


-----Original Message-----
From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-
bounces@xxxxxxxxxxx] On Behalf Of Michael Jackson
Sent: Freitag, 9. April 2010 16:04
To: CDT General developers list.
Subject: [cdt-dev] Possible to use the

qtc-debugging-helper (Either

DSF/CDI)


 I do a bunch of Qt programming and I prefer to use

Eclipse CDT to

do my programming. The major hurdle that I have currently

is trying

to
debug Qt based code. Due to the design of the Qt classes when
trying to get the "value" of things like a QString gdb will just

send back a

pointer address that isn't really helpful. With Qt-Creator the
engineers at Nokia have implemented the qtc-debugging-helper
library which your project can link against.

 What I was wondering would be what type of code
updates to CDT
(Either in CDI or DSF) would have to go into place in oder to
effectively use the code contained in the qtc-debugging-helper
library? Looking through the qtc-debugging-helper library

it seems

there are "pretty-printers" for the Qt Classes which
can then be
piped back to the IDE making the request to display
more helpful
values of a class rather then the internal pointer.

 I am motivated enough to start hacking in CDT to at least
figure out if this type of thing is even possible. Even better

would be some

help from Nokia to point me in the right direction ;-) ***

Thanks
___________________________________________________________
Mike Jackson                      www.bluequartz.net
Principal Software Engineer       mike.jackson@xxxxxxxxxxxxxx
BlueQuartz Software               Dayton, Ohio

*** I know this is basically helping out a rival product

(QtCreator

vs
Eclipse CDT) but I think would still be seen as a
Win-Win for all
parties.
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