Debugging C++ frontend using CLion IDE

Debugging C++ frontend using CLion IDE

[Berke Yavas]

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Hi,

I am trying to set up my environment for the upcoming google summer of
code. One thing I haven't figured out yet, how can I debug C++ frontend(or
any other language frontend) with CLion. If anybody managed to do this(or
using another IDE), could you please share your settings with me?

Best regards,
Berke

Re: Debugging C++ frontend using CLion IDE

[Charalampos Mitrodimas]

Hi Berke,

> Hi,
>
> I am trying to set up my environment for the upcoming google summer of
> code. One thing I haven't figured out yet, how can I debug C++ frontend(or
> any other language frontend) with CLion. If anybody managed to do this(or
> using another IDE), could you please share your settings with me?

It might be best to proceed with something that is already documented by 
the GCC GNU team. The best way for you to learn how to step through the 
code is in the documentation.

See: https://gcc-newbies-guide.readthedocs.io/en/latest/debugging.html


Thanks,

Charalampos

>
> Best regards,
> Berke

Re: Debugging C++ frontend using CLion IDE

[Charalampos Mitrodimas]

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Hi Berke,

> Hi,
>
> I am trying to set up my environment for the upcoming google summer of
> code. One thing I haven't figured out yet, how can I debug C++ frontend(or
> any other language frontend) with CLion. If anybody managed to do this(or
> using another IDE), could you please share your settings with me?

It might be best to proceed with something that is already documented by
the GCC GNU team. The best way for you to learn how to step through the
code is in the documentation.

See: https://gcc-newbies-guide.readthedocs.io/en/latest/debugging.html


Thanks,

Charalampos

>
> Best regards,
> Berke

Re: Debugging C++ frontend using CLion IDE

[Paul Smith]

On Wed, 2023-03-01 at 20:59 +0300, Berke Yavas via Gcc wrote:
> One thing I haven't figured out yet, how can I debug C++ frontend(or
> any other language frontend) with CLion. If anybody managed to do
> this (or using another IDE), could you please share your settings
> with me?

Since CLion is (a) not free (by either definition), and (b) requires
projects to use CMake (at least it did last time I checked), it's
highly unlikely you'll find too many GNU projects that have any
information about how to configure it.

I'm not sure what IDEs other devs use: probably vim or Emacs mostly.

Re: Debugging C++ frontend using CLion IDE

[Tim Lange]

Hi Berke,

I had the same problem last year. Many IDEs don't really work for 
developing gcc. Most here probably use either emacs or vim. If you want 
to use an IDE, you might have to do some hacks.

The oldschool indentation style of gcc (mix of tab and spaces) is not 
widely supported. IDEs/Editors that support displaying this identation 
style are GNOME Builder (but that doesn't support the way gcc is 
built), Eclipse, VS Code (since Dec 22) and vim/emacs of course.
For VS Code, you need to apply 'unexpand' to the source files as it 
does not support converting 8 spaces to 1 tab automatically. There are 
plugins for Code to run customs commands on save.

To keep your IDE snappy, you should exclude everything that you won't 
need from the indexing, especially the test directory.

At last, for debugging, I had good experiences with launching a 
gdbserver, i.e. replacing "-wrapper gdb" with "-wrapper 
gdbserver,localhost:2345". Then you can connect your IDE to that 
gdbserver and fully use the IDE interface to debug. You can configure 
running gcc with a gdbserver as a pre-task to automate this.

- Tim

PS: When I tried CLion last year, I neither could get the build system 
working nor the indentation. So you might want to look at one of the 
other IDEs but I don't if something changed in the time.

On Mi, Mär 1 2023 at 20:59:17 +0300, Berke Yavas via Gcc 
<gcc@gcc.gnu.org> wrote:
> Hi,
> 
> I am trying to set up my environment for the upcoming google summer of
> code. One thing I haven't figured out yet, how can I debug C++ 
> frontend(or
> any other language frontend) with CLion. If anybody managed to do 
> this(or
> using another IDE), could you please share your settings with me?
> 
> Best regards,
> Berke