[lldb-dev] Inquiry for performance monitors

[Pavel Labath via lldb-dev]

On 4 February 2016 at 12:49, Abhishek Aggarwal <abhiinnitald at gmail.com> wrote:
> Hello Pavel
>
> As per my understanding, instead of doing it by expression evaluation
> if the code (to enable pt and gathering the raw traces) is written on
> lldb-server side, then also lldb-server will have to wait for the
> inferior to stop in order to encapsulate all the traces in packets and
> send them to client for analysis.
>
> Is it possible that client can request the lldb-server to send it a
> part of the raw traces while the inferior is still running?
>

Hi,

This is certainly possible. The server already sends us the stdout
from the inferior this way. There is even some support for gathering
"profile data" in the client (see
GDBRemoteCommunicationClient.cpp:1286), presumably gathering data from
debugserver, as lldb-server does not send such packets. If needed, we
can send the same packets from lldb-server. Or, if these are not
suitable, we can add another kind of packets -- the protocol through
which they communicate is fully under our control.

cheers,
pl