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Turn the functions within it into virtual methods on the ISA classes. Eliminate the implementation in MIPS, which was just copy pasted from Alpha long ago. Fix some minor style issues in ARM. Remove templating. Switch from using an "XC" type parameter to using the ThreadContext * installed in all ISA classes. The ARM version of these functions actually depend on the ExecContext delaying writes to MiscRegs to work correctly. More insiduously than that, they also depend on the conicidental ThreadContext like availability of certain functions like contextId and getCpuPtr which come from the class which happened to implement the type passed into XC. To accomodate that, those functions need both a real ThreadContext, and another object which is either an ExecContext or a ThreadContext depending on how the method is called. Jira Issue: https://gem5.atlassian.net/browse/GEM5-1053 Change-Id: I68f95f7283f831776ba76bc5481bfffd18211bc4 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/50087 Maintainer: Gabe Black <gabe.black@gmail.com> Reviewed-by: 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, 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.