I am trying to debug a program in Ubuntu gnome.

In Windows the program runs starts as a console program which has the ability to open a GUI.

In Linux only the GUI comes up. When I run the program directly from the gnome-terminal I get the console output.

How do I configure Lazarus to do the same - start up the console then run the GUI?

At least 0.9.31 has a console window in the "View" menu, "Debug windows"

Not sure about 0.9.30.

There may be an option in the debugger-tab, of the options dialog: ConsoleTTY.
If so, open a terminal (any terminal), run "tty" (should return /dev/ppy/n), and enter the result.

In Lazarus versions 0.9.28, just run Lazarus from a console

How do I configure Lazarus to do the same - start up the console then run the GUI?

Check Run->Run Parameters->Launching application

R.

True, that is another way => but it may not always work with the debugger

I have tried this method and it works. How do I check that it is working with the debugger?

Set a breakpoint?
If it stops, then it is ok.

There was an old report that it did not work with "xterm" (and/or maybe other terminals?).
As gdb would then debug the starter-app

Make sure you have gdb set as debugger in the environment options.

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.lazarus.freepascal.org/pipermail/lazarus/attachments/20111001/a4ae0cce/attachment.html>

In the project options uncheck the "win32 GUI application". Then it will be run inside a terminal on linux when started from the IDE. This will not interfere with debugging. But it will also make the compiled program always have a black DOS box in windows, even when run outside the IDE. (The difference in the binary affects only the windows binary, on all other platforms this option only affects how it is started when run from within the IDE).

Maybe this option should be inverted and renamed to: "program needs console window". This will also affect whether on windows an attempt to writeln() will crash your application due to missing stdout.

The IDE is using TProcess to start the application and the type of terminal (xterm or other) that comes up is not configurable in the IDE, it is TProcess (with the show console flag) automatically trying to decide what is the default terminal app on your system.

2011/10/1 Frank Church :

> Check Run->Run Parameters->Launching application I have tried this method and it works. How do I check that it is working with the debugger?

The debugger will then "debug" xterm instead of your program and neither breakpoints nor anything else will work, the debugger will essentially be useless.

Can you check menu "run" "run params". Make sure no starter app is selected.

To watch your apps output, use "View" "debug windows" "console output"

Maybe this option should be inverted and renamed to: "program needs console window". This will also affect whether on windows an attempt to writeln() will crash your application due to missing stdout.

+1

The current wording is very inprecise/confusing, should be rephrased in any case.

DoDi

+1
-Michael