d45c4b7523
Setting disable_partial part way through the checks for various build targets is incorrect and will affect targets based on the order they're checked. This change moves the check earlier, makes it consistent across all builds whether fast is included or not, and stops passing it in as an option to makeEnv since it now applies universally. By disabling partial linking consistently, we avoid missing bugs where only the "fast" version of gem5 doesn't build correctly because of the multitude of g++ bugs having to do with combining LTO and partial linking. This also simplifies the logic in the SConscript by having fewer independently moving parts. Change-Id: Iff69f39868e948d3b9a5b11ea80bbfed19419b59 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/29303 Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Gabe Black <gabeblack@google.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com> Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.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.