Re: A few comments

Hi Paulo --

DDD-3.3.12 was released about 15 years ago and all work on it paused. 
Development on DDD restarted about three years ago.

The current version of DDD, available on Fedora, is 3.4.0.  There have 
been many bug fixes and improvements.  Version 3.4.1 will be released 
shortly.  More information is available at 
https://www.gnu.org/software/ddd/

Please install DDD-3.4.0 (or build DDD-3.4.1 from the source repository) 
and see if that addresses your issues.  Make sure you have the latest 
version of GDB as well.  Some of the issues you mention may be caused by 
  GDB, not DDD.

There has been no testing of DDD-3.4 with languages other than C and 
C++.  Please submit bug reports or feature requests related to using DDD 
with Fortran.  The bug tracker is here:
https://savannah.gnu.org/bugs/?group=ddd

As the warning mention in your PS says, you should avoid running any 
software, particularly debuggers, as root.


On 6/28/24 17:24, Paulo Nogueira wrote:
> 
> 
>   Hello,
> 
>   Although I have used DDD quite a number of times, and it must
>   be said that almost every feature works, there seem to be, in
>   my experience, some rather persistent and nontrivial problems.
>   Whether these problems are due wholly to DDD, created by the
>   distro (Fedora) I have been using, or to some configuration on
>   my computer is unclear. There is always the possibility of
>   reporting them as bugs, but I am rather unsure about that
>   since this kind of problems should have been reported before.
> 
>   These are the problems I have been experiencing for some time
>   with DDD+GFortran (typically compiled with flags -O0 -g, but
>   -Og does not seem to be an improvement, at least when I tried
>   it in a brief session, hence returned to -O0 -g):
> 
>   1) the positions of the boxes in the Data window may often
>   change (and even overlap) after restarting DDD;
> 
>   2) some of the boxes may disappear, or the respective
>   titles/headers may change from the name of the variable to
>   some kind of characterization of the variable itself;
> 
>   3) the number of such boxes may _double_ after each restart;
> 
>   4) the number of breakpoints may also increase after each
>   restart (one may get multiple breakpoints for the same line
>   of source code);
> 
>   5) DDD claims not to know about some parameters defined in
>   the modules used by some given subroutine -- only when asked
>   to display their values, mind;
> 
>   6) DDD can freeze for no apparent reason, and has to be
>   launched anew;
> 
>   7) gdb can also become unresponsive, and has to be stopped;
> 
>   8) DDD can save (overwrite) the original init file with
>    some extended file that does not work properly;
> 
>   9) the height of the usable area of the Data window seems to
>    have an upper bound (in pixels?) but nowhere can I find a
>    description of that parameter -- thus, one cannot make
>    effective use of the larger displays (the Data window can be
>    enlarged, but the non-gridded, grey lower part is unusable).
> 
>   I would very much appreciate your comments on these issues.
>   Recently, I have been using version 3.3.12.
> 
>   As a suggestion, I would like to put forward the following
>   idea: allowing some small number of sub-programs (functions
>   and subroutines, in Fortran) to have their own Data windows.
>   If problems (1) and (6) were solved for the current (global)
>   Data window, this suggestion would be less relevant. Even
>   in that case, however, having "sub-Data-windows" could be
>   helpful, so as not to mix variables from different subroutines
>   (with the same name, say).
> 
>   Another suggestion: an init parameter to let the boxes in the
>   Data window to be "pinned" by default, and "re-pinned" with
>   new coordinates if moved by the user.
> 
>   Kind regards,
>    Paulo Nogueira
> 
> 
>    PS  there is a message about "being run by the root user"
>      and formatting warning messages, but I suppose there is
>      no relation to the above issues
> 
> 

-- 
Michael Eager