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This "UnitTest" actually links against all of gem5, and can be used to look at a binary and find either what symbol goes with an address, or what address goes with a symbol. While that could be a useful thing to want to do, there are other ways to do that with external tools. Also, other than by seeing if this tool compiles and manually seeing if it returns reasonable results, this doesn't really actually test anything. Finally, this is one of the old style "UnitTest"s, quotes intentional, since while it may try to do a fairly specific thing, it actually exercises an arbitrarily large portion of gem5 as a whole to do it, does not self report success or failure, contain any test cases or input data or expected output, and is not run automatically as part of our testing suite. Tests for the underlying classes in the Loader namespace would be/are more appropriate, and make this test unnecessary. Change-Id: I48db315d3da440fd26be0a81cc8e07affcacda46 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/45165 Reviewed-by: Giacomo Travaglini <giacomo.travaglini@arm.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Giacomo Travaglini <giacomo.travaglini@arm.com> Tested-by: kokoro <noreply+kokoro@google.com>
This is the gem5 simulator. The main website can be found at http://www.gem5.org A good starting point is http://www.gem5.org/about, and for more information about building the simulator and getting started please see http://www.gem5.org/documentation and http://www.gem5.org/documentation/learning_gem5/introduction. To build gem5, you will need the following software: g++ or clang, Python (gem5 links in the Python interpreter), SCons, SWIG, zlib, m4, and lastly protobuf if you want trace capture and playback support. Please see http://www.gem5.org/documentation/general_docs/building for more details concerning the minimum versions of the aforementioned tools. Once you have all dependencies resolved, type 'scons build/<ARCH>/gem5.opt' where ARCH is one of ARM, NULL, MIPS, POWER, SPARC, or X86. This will build an optimized version of the gem5 binary (gem5.opt) for the the specified architecture. See http://www.gem5.org/documentation/general_docs/building for more details and options. The basic source release includes these subdirectories: - configs: example simulation configuration scripts - ext: less-common external packages needed to build gem5 - src: source code of the gem5 simulator - system: source for some optional system software for simulated systems - tests: regression tests - util: useful utility programs and files To run full-system simulations, you will need compiled system firmware (console and PALcode for Alpha), kernel binaries and one or more disk images. If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.