Multiprogram teaser

[Stan Shebs]

Marc Khouzam wrote:
> Multi-program, gives me the impression that the debugged processes 
> will be started by GDB itself.  I believe that is what Stan is 
> aiming at, right?  This would also fit in Eclipse/DSF, but is not
> in our short term planning.  But maybe later...
>
>   
By "multiprogram" I mean that there can be several different 
executables, each with its own code, symbols, etc. There's no assumption 
about how GDB interacts with the running targets created from the 
executables; it could launch, attach, do target remote, etc.

It's orthogonal to "multiprocess" debugging because you could have one 
executable and be debugging a half-dozen processes created by multiple 
runs of the executable. You could also have a single process whose 
address space includes several different executables, each at a 
different address.

"Multiprocess" is often taken to mean "multiprogram" as well, presumably 
because the case of one executable and multiple processes is not that 
interesting in practice.

GUIwise, I expect that each program will want its own window, since most 
state and context is not going to be shared with other programs. Ideally 
there would be a program/process list with checkboxes so you can 
simul-continue a chosen subset of processes. The list may get long - 
imagine Tom's example of GCC testsuite running under a multiprocess GDB 
that catches every cc1, gas, ld, etc run - that's dozens of programs and 
thousands of processes!

Stan