dccede3a61
This forces a test in the gcc Makefile to pick the right answer, where its own check will not. Without this fix, installing libsanitizer fails to build while installing the c++ headers because it can't find a definition for PATH_MAX. Disabling building libsanitizer seems to work around the problem, but other problems crop up later when using the cross compiler, specifically when trying to build the googletest library. The chrome authors apparently ran into a similar problem when building the native client tool chain as described in this bug: https://bugs.chromium.org/p/nativeclient/issues/detail?id=3190 The CL which fixed the issue is here: https://codereview.chromium.org/11462002/patch/1/2. With a similar fix applied to build_cross_gcc.py, the cross compilers build without issue, and are then able to build the googletest library without issue. Change-Id: Ia6869d3dc523cb0d964e82bb300f8b092693739b Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27489 Tested-by: Gem5 Cloud Project GCB service account <345032938727@cloudbuild.gserviceaccount.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Ciro Santilli <ciro.santilli@arm.com> Maintainer: Bobby R. Bruce <bbruce@ucdavis.edu>
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.