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The arch implies gem5 lib, and not the other way around. Or in other words, if, for example, x86 is the ISA, the having the tag 'x86 isa' would imply that that file also has the tag 'gem5 lib'. Having the tag 'gem5 lib' would not imply 'x86 isa'. This worked out because when testing for a single tag, we were using with_any_tags, and 'gem5 lib' would expand to 'gem5 lib' and 'x86 isa'. Then we would match files which were non-specific and used 'gem5 lib', or files which had more specifically used 'x86 isa' only. Files which used, for instance, 'arm isa', would not meet either criteria of the implied "or". Change-Id: I301d1bbbbcac1594371584d4b0d5d291b7b77fc4 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/51827 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Daniel Carvalho <odanrc@yahoo.com.br> Maintainer: Daniel Carvalho <odanrc@yahoo.com.br>
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, 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 these tools. Once you have all dependencies resolved, type 'scons build/<CONFIG>/gem5.opt' where CONFIG is one of the options in build_opts like ARM, NULL, MIPS, POWER, SPARC, X86, Garnet_standalone, etc. This will build an optimized version of the gem5 binary (gem5.opt) with the the specified configuration. See http://www.gem5.org/documentation/general_docs/building for more details and options. The main source tree includes these subdirectories: - build_opts: pre-made default configurations for gem5 - build_tools: tools used internally by gem5's build process. - configs: example simulation configuration scripts - ext: less-common external packages needed to build gem5 - include: include files for use in other programs - site_scons: modular components of the build system - 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 may need compiled system firmware, kernel binaries and one or more disk images, depending on gem5's configuration and what type of workload you're trying to run. Many of those resources can be downloaded from http://resources.gem5.org, and/or from the git repository here: https://gem5.googlesource.com/public/gem5-resources/ If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.