There are a large number of files in the tree that define _GNU_SOURCE
despite not actually using features hidden behind this flag. This patch
removes all these definitions in one fell swoop...
Add rilmodem test engine. This engine is an improvement on the rilmodem
test server that allows us to test generic interactions with the
rilmodem driver. Instead of just be able to check content of received/
sent bytes on the rild socket, we can now specify a set of steps for a
test that include interactions with the atom. The step types are
- TST_ACTION_SEND: The harness sends a parcel
- TST_ACTION_CALL: The harness calls a driver function
- TST_EVENT_RECEIVE: The driver sends a parcel
- TST_EVENT_CALL: The driver calls a harness (atom) function