[dsdp-dd-dev] Make GDB process launching customizable in DSF

[<Ling.5.Wang@xxxxxxxxx>]

Title: Make GDB process launching customizable in DSF

Hi,

I just logged a bug and attached a proposed fix
https://bugs.eclipse.org/bugs/show_bug.cgi?id=240092

for this issue:

Currently with org.eclipse.dd.gdb, the way GDB process is started is kind of
hard coded, making it hard to accommodate some use cases. For instance, to
start GDB process on a remote machine via SSH, or to start GDB process in a
chroot'ed file system like Scratchbox.  In those cases, the user settings in
launch configuration won't usually change, but the underlying command line to
start GDB and the parameters for GDB such as working directory and share
library paths need special handling.

Please review and comment.

Thanks.

- Ling