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README:
Updated for release 1.1. Clarified several minor things (I hope).
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This is release m5_1.1 of the M5 simulator. This file contains brief "getting started" information and release notes. For more information, see http://m5.eecs.umich.edu. If you have questions, please send mail to m5sim-users@lists.sourceforge.net. WHAT'S INCLUDED (AND NOT) ------------------------- Since you're reading this file, presumably you've managed to untar the distribution. The archive you've unpacked has three subdirectories: - m5: the simulator itself - m5-test: regression tests and scripts to run them - ext: less-common external packages needed to build m5 - alpha-system: source for Alpha console and PALcode M5 is a capable, full-system simulator that current supports both Linux 2.4/2.6 and the proprietary Compaq/HP Tru64 version of Unix. We are able to distribute Linux bootdisks, but we are unable to distribute bootable disk images of Tru64 Unix. If you have a Tru64 license and are interested in obtaining disk images, contact us at m5-dev@eecs.umich.edu. WHAT'S NEEDED ------------- - GCC (version 3.3 or 3.4 recommended) - Python 2.3 or newer - SCons 0.96.1 (see http://www.scons.org) WHAT'S RECOMMENDED ------------------ - MySQL (for statistics complex statistics storage/retrieval) - Python-MysqlDB (for statistics analysis) GETTING STARTED --------------- There are two different build targets and three optimizations levels: Target: ------- ALPHA_SE - Syscall emulation simulation ALPHA_FS - Full system simulation Optimization: ------------- m5.debug - debug version of the code with tracing and without optimization m5.opt - optimized version of code with tracing m5.fast - optimized version of the code without tracing and asserts Different targets are built in different subdirectories of m5/build. Binaries with the same target but different optimization levels share the same directory. Note that you can build m5 in any directory you choose by copying the SConstruct file there and creating symbolic links to the 'm5' and 'ext' directories. The following steps will build and test the simulator. The variable "$top" refers to the top directory where you've unpacked the files, i.e., the one containing the m5, m5-test, and ext directories. If you have a multiprocessor system, you should give scons a "-j N" argument (like make) to run N jobs in parallel. To build and test the syscall-emulation simulator: 1. In $top/m5/build, run "scons ALPHA_SE/m5.opt". 2. In $top/m5-test, run "./do-tests.pl -B ALPHA_SE". The tests should end with "finished do-tests successfully!" Note: if you're running under Cygwin several tests will fail with an "EIO icount mismatch". This is due to the lack of fesetround() under Cygwin causing differences in floating-point rounding. To build and test the full-system simualator: 1. Download the full-system binary package from XXX. This package includes disk images and kernel, palcode, and console binaries for Linux and FreeBSD. 2. Edit SYSTEMDIR in $top/m5-test/SysPaths.py to point to your local copy of the binaries. 3. In $top/m5/build, run "scons ALPHA_FS/m5.opt". 4. In $top/m5-test, run "./do-tests.pl -B ALPHA_FS".