problem with exec-file when targetting remote machine

Kris Warkentin
2003-03-24T20:07:34Z

This problem comes up when using the QNX remote protocol but it's probably
more generic than that. I'm not asking for a fix but more for some guidance
as to what might be happening.

The long and short of it is that if I attach to a process on a remote
machine after having read the symbols, everything works fine. I run gdb,
load symbols, set a breakpoint on main, run and get:

Breakpoint 1, main (argc=1, argv=0x803fcc4) at NetController.cpp:62
62 int lSuccessCode = 0; // Success

as one might expect. If, however, exec-file has been set, either explicitly
or implicitly by calling "gdb myapp" from the command line, I get something
like:

Breakpoint 1, 0x40380000 in ?? ()
(gdb) bt
#0 0x40380000 in ?? ()
#1 0x00000001 in ?? ()

Note that this doesn't happen with everything - it seems to be mostly with
large projects, particularily C++. There's obviously some data being read
by gdb based on what the exec-file is set as that is causing a problem.

Can anyone give me an idea as to what gdb might be doing differently when
exec-file has been set?

cheers,

Kris