This directory contains a demo of C++ configuration of gem5. The intention is to provide a mechanism to allow pre-generated config.ini files generated by Python-based gem5 to be reloaded in library-base versions of gem5 embedded in other systems using C++ calls for simulation control. This demo implements a few of the simulation control mechanisms of the Python gem5 on top of a C++ configured system. Read main.cc for more details of the implementation. To build: First build gem5 as a library with cxx-config support and (optionally) without python. Also build a normal gem5 (cxx-config not needed, Python needed): > cd ../.. > scons build/ARM/gem5.opt > scons --with-cxx-config --without-python build/ARM/libgem5_opt.so > cd util/cxx_config Then edit Makefile to set the paths for PYTHON and run make > make Make a config file for the C++-configured gem5 using normal gem5 > ../../build/ARM/gem5.opt ../../configs/example/se.py -c \ > ../../tests/test-progs/hello/bin/arm/linux/hello The binary 'gem5.opt.cxx' can now be used to load in the generated config file from the previous normal gem5 run. Try: > ./gem5.opt.cxx m5out/config.ini This should print: > Hello world! The .ini file can also be read by the Python .ini file reader example: > ../../build/ARM/gem5.opt ../../configs/example/read_config.py m5out/config.ini