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In SPARC and SE mode, system calls are triggered by a trap exception with the appropriate trap number, and then a handler within the Workload (formerly the Process) object recognizes the trap number and triggers the system call. For Linux, this special handling happens in the Linux specific Workload, and other types of traps are passed through to the base SPARC SE Workload class. For Solaris however, no special handling is implemented. That means that it's actually impossible for a Solaris SE mode program to actually trigger a system call, and so while there is some code written for Solaris SE mode, this feature does not actually work at all. Also, while it's relatively easy to build binaries for Linux on various architectures using, for instance, the crosstool-ng configs in util/, there is no ready made option that I could find for building a SPARC Solaris cross compiler which would run on x86 linux. Given that the support that exists isn't actually hooked up properly, SPARC is not one of the most popular ISAs within gem5, Solaris is not a widely used operating system, we have (to my knowledge) no test binary to run, and setting up a cross compiler would be non-trivial, it makes the most sense to me to remove this support. Change-Id: I896b5abc4bf337bd4e4c06c49de7111a3b2b784c Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/33996 Reviewed-by: Gabe Black <gabe.black@gmail.com> Maintainer: Gabe Black <gabe.black@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.