Re: regarding transparent data ranges (in tracepoint support)

[ankit thukral <ankit_plug@yahoo.com>]

--- Jim Blandy <jimb@redhat.com> wrote:
> 
> ankit thukral <ankit_plug@yahoo.com> writes:
> 
> > hi all,
> >      i read about the transparent data ranges and
> > learned that data in these ranges are not supposed
> to
> > be collected by the remote stub since they belong
> to
> > read-only segment of the debuggee.my problem is :
> a
> > TSTART would start the debuggee and it may so
> happen
> > that the debuggee finishes executing.at this
> point,if
> > the GDB requests for some data in the transparent
> data
> > range,then how can the remote stub provide it with
> one
> > since the debuggee has exited ?
> 
> If the target is a gdbserver, then it would need to
> read the bytes
> from the executable file.  This is easy to do with
> BFD, but if I
> remember right, gdbserver doesn't use BFD at the
> moment; not sure how
> to get around that.
> 
> If the target is an embedded system, then presumably
> the transparent
> data ranges correspond to ROM regions, so the data
> is still there.



  how about setting a (internal) breakpoint in the
debuggee which would prevent it from exiting even
though it has finished executing main(),and then
entertain GDB requests for the transparent (or
read-only) memory regions by reading from the memory
of the debuggee???




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