Download

Getting gem5

The latest gem5 source code (including the encumbered files) is available via our Mercurial repository host at http://repo.gem5.org. It is strongly recommend that you get a copy of gem5 by using Mercurial. You can get more info about the repository and Mercurial here. Steps for getting a copy of the source code:

• Install mercurial (hg). This is available in the mercurial package on Ubuntu and Redhat and OS X Fink.

• For the stable repository: hg clone http://repo.gem5.org/gem5-stable or the development repository hg clone http://repo.gem5.org/gem5. The stable repository is updated about once every 6 months, while the development repository is updated reguarly and occasionally breaks.

• After you clone the repository you can update it by typing hg pull and hg update. Read the documentation on this page for more info on using Mercurial.

If you want to download gem5 without installing Mercurial, you can get a tarball. But it will be more difficult to merge in changes when you need to update to new version. The stable repository is available via this link. The development repository is available via this link.

Useful Software not in Mercurial

Full-System Stuff

You would need one or more of the following files to full system simulations using gem5. If you download these files, read this page for instructions on how to install these files.

• Alpha
  • Full System Files -- Pre-compiled Linux kernels, PALcode/Console code, and a filesystem
    • Unchanged since M5 2.0 beta 3. If you already have these you don't need them again.
  • linux-dist -- Everything you need to create your own disk image and compile everything in it from scratch
• ARM
  • ARM Full-System Files -- Pre-compiled kernel and disk images for 32-bit and 64-bit ARM simulation. Updated October 2014. There kernels all support PCIe devices and the 64-bit kernels support >2GB of DRAM.
  • Legacy ARM Full System Files -- A collection of previous ARM files that have been distributed. Anyone getting started with ARM and gem5 should use the above link.
  • BBench for gem5 -- Full-system Android files and BBench, a web-browser benchmark.
  • AsimBench for gem5 -- Full-system Android files for AsimBench, a benchmark suite containing various types of mobile applications.
• X86
  • Full System Files -- The kernel used for regressions, an SMP version of it, and a disk image
  • config files -- Config files for both of the above kernels, 2.6.25.1 and 2.6.28.4
• (The mkblankimage.sh script to create a blank disk image that used to be downloadable here is now included in the m5 repository, in the util directory.)

Benchmarks

• For information about running Android on gem5 and using the web browser benchmark, see BBench-gem5.
• For information about running the AsimBench benchmark on Android with gem5, see AsimBench for more information.
• For information about using the DaCapo benchmarks on gem5 see the DaCapo benchmarks page for more information.
• SPLASH benchmarks -- See the Splash benchmarks page for more information.

Pre-compiled Cross-compilers

Externally supplied cross compilers:

• ARM cross compilers from CodeSourcery -- These are high-quality cross compilers that are updated frequently
• Ubuntu users can simply install the crossbuild-essential-armhf and libc6-dev-armhf-armel-cross packages
• MIPS cross compilers from CodeSourcery

All generated with crosstool for x86 linux hosts/linux targets

• Alpha: gcc-3.4.3, gcc-4.3.2, glibc-2.6.1 (NPTL,x86/64), gcc-4.3.2, glibc-2.6.1 (NPTL,x86/32)
• SPARC64