5b08ae2372
Updates for READMEs of /util/cxx_config, /util/systemc, /util/tlm. Some minor corrections, mostly with respect to MAC/OSX Signed-off-by: Jason Lowe-Power <jason@lowepower.com>
53 lines
1.6 KiB
Text
53 lines
1.6 KiB
Text
This directory contains a demo of C++ configuration of gem5. The intention
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is to provide a mechanism to allow pre-generated config.ini files generated
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by Python-based gem5 to be reloaded in library-base versions of gem5
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embedded in other systems using C++ calls for simulation control.
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This demo implements a few of the simulation control mechanisms of the Python
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gem5 on top of a C++ configured system.
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Read main.cc for more details of the implementation.
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To build:
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First build gem5 as a library with cxx-config support and (optionally)
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without python. Also build a normal gem5 (cxx-config not needed, Python
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needed):
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> cd ../..
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> scons build/ARM/gem5.opt
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> scons --with-cxx-config --without-python build/ARM/libgem5_opt.so
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> cd util/cxx_config
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Note: For MAC / OSX this command should be used:
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> scons --with-cxx-config --without-python build/ARM/libgem5_opt.dylib
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Set a proper LD_LIBRARY_PATH e.g. for bash:
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> export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/path/to/gem5/build/ARM/"
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or for MAC / OSX:
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> export DYLD_LIBRARY_PATH="$DYLD_LIBRARY_PATH:/path/to/gem5/build/ARM/"
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Then edit Makefile to set the paths for PYTHON and run make
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> make
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Make a config file for the C++-configured gem5 using normal gem5
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> ../../build/ARM/gem5.opt ../../configs/example/se.py -c \
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> ../../tests/test-progs/hello/bin/arm/linux/hello
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The binary 'gem5.opt.cxx' can now be used to load in the generated config
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file from the previous normal gem5 run.
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Try:
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> ./gem5.opt.cxx m5out/config.ini
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This should print:
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> Hello world!
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The .ini file can also be read by the Python .ini file reader example:
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> ../../build/ARM/gem5.opt ../../configs/example/read_config.py m5out/config.ini
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