Re: [PATCH/RFC] Implement the ability to set the current working directory in GDBserver

[Philippe Waroquiers <philippe.waroquiers@skynet.be>]

On Thu, 2017-08-31 at 17:40 -0400, Sergio Durigan Junior wrote:
> >> +     This is done by using the "cd" command in GDB, which instructs it
> >> +     to tell GDBserver about this directory change the next time an
> >> +     inferior is run.  If you want to make GDBserver enter the
> >> +     directory your GDB is currently in, you can do a "cd ." in GDB.
> >
> > Couldn't GDB do this "cd ." step under the hood, without bothering
> > users with that?
> 
> The problem is that we don't really know if the user will want to change
> gdbserver's current directory or not.  If we always assume so, this will
> lead to many breakages as the directory tree will not be always the same
> on host and target.  That's why 'user_set_cwd' is initially false.
> However, there's the case when the user may want to change gdbserver's
> directory to the same directory GDB is in.  That's why I included this
> explanation in the docs.
> 
> The more I think about this, the less I'm satisfied with the current
> solution.  But I can't really think of a better alternative that doesn't
> involve having a separate command to manipulate gdbserver's cwd.
Why not have options such as:
    cd -s xxxx 
         only change the gdb server directory 
    cd -g xxxx
         only change the gdb directory
    cd xxxx
         change both gdb and gdb server directory
       (synonym of cd -s -g xxxx)


Philippe