This adds an interface for a backend-specific notion of time, e.g. CPU
cycles since simulator start, and a concrete implementation for the
Bochs backend. This is needed to record CPU idle times (e.g., HLT
instruction), and for target backends capable of more timing-accurate
execution.
This change also modifies the tracing plugin to add the time to all
trace events.
Change-Id: I93ac1d54c07f32b0b8f84f333417741d8e9c8288
- This commit only enables linking against QEMU. The abstraction layer is
completely dysfunctional at this time.
- QEMU's build system needs to be patched in order to create a static
library. This patch is currently not included in the Fail* repository.
- QEMU's JIT compilation may complicate or even preclude the implementation
of some of Fail*'s backend abstractions. Only a minimal subset (serial
I/O, memory, memory writes, save/restore) is planned for the first phase.
git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1615 8c4709b5-6ec9-48aa-a5cd-a96041d1645a
