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The build for .fast was set up to produce a stripped executable, and the unstripped executable was instead named .fast.unstripped. I think the assumption that a stripped executable is faster than an unstripped executable is flawed, since the parts of the binary that are removed, debug symbols, are not loaded into memory anyway, so while the program is executing it shouldn't be any different or take up any additional memory. This also made .fast a special case compared to the other build types, like .opt, .debug, etc. Instead, this change makes .fast unstripped like all the other binaries, and also makes it possible to request a stripped version of *any* binary the build can produce with a .stripped suffix. Change-Id: I2de82e0951d9f41c30594f32fba50acdd14ed69c Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/48120 Reviewed-by: Bobby R. Bruce <bbruce@ucdavis.edu> Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu> 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.