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This function catches a couple types of exceptions the functions it calls might throw, but if one that it doesn't catch is thrown, then it will propogate that exception to its own callers, and not initialize the value it was asked to convert. This might be considered desirable behavior since it lets errors propogate and avoids handling them in code that might not know the context of when it's called. On the other hand, it upsets g++ since it thinks that there might be an uninitialized value used elsewhere, even though that value will only be uninitialized if an exception is propogating, and the code that would use it is after a point where that exception would have been caught and execution would have resumed. To satisfy g++ and to also avoid silently hiding errors, this change adds a catch all which will panic if an unexpected exception is raised. Change-Id: Ie94dcef3a50f7902566328a3fa2eac59b3cf9aad Reviewed-on: https://gem5-review.googlesource.com/c/14399 Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Maintainer: Jason Lowe-Power <jason@lowepower.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/Introduction, and for more information about building the simulator and getting started please see http://www.gem5.org/Documentation and http://www.gem5.org/Tutorials. 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/Dependencies 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 ALPHA, 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/Build_System for more details and options. With the simulator built, have a look at http://www.gem5.org/Running_gem5 for more information on how to use gem5. 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. Please see the gem5 download page for these items at http://www.gem5.org/Download If you have questions, please send mail to gem5-users@gem5.org Enjoy using gem5 and please share your modifications and extensions.