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It appears that scons bugs are not on tigris.org any more and are now on github, although fortunately old bugs seem to have been ported over and have the same numbering. This CL updates URLs which were in comments in the gem5 source, specifically in scons scripts, to point to the corresponding github version. I also checked to see if these bugs were still open, or if we could remove our workarounds for them. 1. 2356 is still open, and has been fairly recently assigned. 2. 2611 is marked as fixed. We might be able to implement the workaround in its last comment from August of 2019. 3. 2811 has been marked fixed, and as best I can tell the fix first appeared in around version 3.0 of scons. If/when that is our minimum version, we can remove the workaround in site_scons/site_tools/default.py. That is mostly fixing an annoying spurious rebuild by scons which does not affect correctness, so even if we remove that workaround we shouldn't break earlier versions, although it would be obnoxious for people that are affected by it and best avoided. Change-Id: I0d74820f399044c6f80148bf3022d07d7bf6f4e5 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/32114 Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Maintainer: Jason Lowe-Power <power.jg@gmail.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.