The latest version of DRAMSys required several API changes which were
applied in this commit.
Also, the README for the usage of DRAMSys has been updated.
The updated version fixes a bug in DRAMSys that caused some full-system
simulations to loop endlessly.
GitHub Issue: https://github.com/gem5/gem5/issues/1452
CMake is not required to build gem5. It is only required to build
and link the optional DRAMSysm library. Therefore, if the DRAMSys repo
has been cloned but CMake is not present this patch ensures no attempt
at building or linking DRAMSysm is made. A warning is thrown
inform the user of the missing CMake.
Change-Id: I4d22e3a16655fd90f6b109b4e75859628f7d532d
Recent breaking changes in the DRAMSys API require user code to be
updated. These updates have been applied to the gem5 integration.
Furthermore, as DRAMSys started to use CMake dependency management,
it is no longer sensible to maintain two separate build systems for
DRAMSys. The use of the DRAMSys integration in gem5 will therefore
from now on require that CMake is installed on the target machine.
Additionally, support for snapshots have been implemented into DRAMSys
and coupled with gem5's checkpointing API.
