Re: [PATCH] gdb: Introduce user-friendly namespace identifier for "info shared"

[Simon Marchi <simark@simark.ca>]

> The issue here is handling dlclose calls. When svr4 detects a dlclose
> call, it will clear the solib_lists object, and read all the SOs
> again. So if the dlclose call has deactivated a namespace, we don't
> have an easy way to identify which namespaces were deactivated, and
> the way to handle this is to deactivate them all and reactivate them
> in svr4_maybe_add_namespace.
> 
> And we need all the data to reactivate namespaces to be stored in
> svr4_info, because if the target is a gdbserver, we're reading
> everything through svr4_current_sos_via_xfer_libraries, and it doesn't
> sound like a good idea to modify the xml parsing code to pass some
> context that would only be useful for solib-svr4.
> 
> While writing this, I realized I might be able to simplify this,
> having just a set of namespace IDs that are active, which will make
> the synchronization much simpler.

Ok you lost me there :).  I'll see in the next patch version.

Simon