[Lazarus] Lazarus 1.2.6 and GDB 7.7

[Martin Frb]

On 14/11/2014 10:01, Tony Whyman wrote:
> Is anyone having much luck with Lazarus 1.2.6 and GDB 7.7 (I'm using
> Linux Mint 17/Ubuntu 14.4).
>
> As soon as I start using it with anything more than a simple program and
> still using the default debug settings, the debugger keeps crashing when
> an exception occurs. Here's a typical error
>
> While executing the command:
> "TGDBMIDebuggerInstruction: "-stack-info-depth 33", [ifRequiresThread]
> Thr=1"
> gdb reported:
> "&"/build/buildd/gdb-7.7.1/gdb/buildsym.c:746: internal-error: failed
> internal consistency check\nA problem internal to GDB has been
> detected,\nfurther debugging may prove unreliable.""
 From what I observed, since gdb 7.5.9 those assertions get triggered.  
With older GDB I had not observed issues like this.
In many cases those are either caused by:
1) mixing stabs and dwarf (maybe some package has different settings).
2) smart linking (On some platforms debug info remains for removed code)
> I am also having problems inspecting class variables - as in the
> debugger claims the symbol does not exist.
>

Depends on if and what debug info fpc generates for them.