45 lines
1.3 KiB
Text
45 lines
1.3 KiB
Text
|
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
|