second step options: factor out common parts of irq_session_component.cc options: use on foc arm no proxy threads Fixes #1456
Ref #1443
Implement the missing Irq_session_component destructor. Fix #1460
This patch changes the top-level directory layout as a preparatory step for improving the tools for managing 3rd-party source codes. The rationale is described in the issue referenced below. Issue #1082
