🚀 go-pugleaf

In article <4ciqma$mm9@floyd.informatik.uni-kiel.de> rb@informatik.uni-kiel.d400.de (Ralf Behnke) writes:

> >: we use the Mocka Modula-2 compiler in an advance
> >: software laboratory course and wonder how
> >: to debug the programs...gdb seems not to
> >: understand the code.
> 
> It seems that it depends on the version of the compiler and the operating
> system:
> 
> On Solaris I am not able to debug MOCKA-programs: gdb is not able to read
> the symbols from the executable.

In the newest MOCKA-Solaris version (since Nov 95) debugging with gdb
is possible. 

> On Linux it is different: 
> 
> using a very old linux system I was able to debug the programs
> on a newer system gdb can read the symbols, but "info functions" 
> ends with a segmentation fault.
> 
> BTW: Does somebody know the reason for this latter behaviour? Is 
> this a problem of gdb or of the MOCKA-System?

I can see no problem with gdb 4.13 (old slackware) as well as with gdb
4.14 (new slackware-ELF).

The newest gdb 4.15.1 cannot understand enumeration types any longer,
it ends with a segmentation fault (detected on SunOS 4.1 and Solaris,
but I think as well on Linux). (Every MOCKA program contains a enum
type BOOLEAN in the standard stabs entries.) 

I reported this bug to bug-gdb@prep.ai.mit.edu. So please wait for a
newer gdb or use gdb 4.14.

--
Holger Hopp <hopp@ira.uka.de>
Institut fuer Programmstrukturen und Datenorganisation
Fakultaet fuer Informatik, Universitaet Karlsruhe, D-76128 Karlsruhe (Germany)