gem5 ARM Bare-Metal Example

This git repository shows a simple example for an ARM Bare-Metal implementation with gem5. It can be used as a starting point for bare metal projects with this simulator. For more information on gem5 please look at: gem5.org.

To install the toolchain on Mac OSX you can yous macports:

    sudo port install arm-none-eabi-gcc
    sudo port install arm-none-eabi-gdb

or Homebrew:

    brew tap PX4/homebrew-px4
    brew update
    brew install gcc-arm-none-eabi

on Linux based systems (e.g. Ubuntu/Debian):

    apt-get install gcc-arm-none-eabi

To compile the example software set a proper path to you bare metal toolchain in common/Makefile, then run:

    cd Simple
    make

To run the software in gem5 do the following steps:

    export GEM5_PATH="/path/to/gem5/repository"
    export TEST_BIN_PATH="/path/to/gem5.bare-metal"

    ${GEM5_PATH}/build/ARM/gem5.opt \
    ${GEM5_PATH}/configs/example/fs.py \
    --bare-metal \
    --kernel=${TEST_BIN_PATH}/Simple/main.elf \
    --machine-type=VExpress_GEM5_V1

Note1: To build and run the interrupt example, simply repeat the steps above replacing "Simple" by "Interrupt". Note2: tested with gem5 v21.0.0.0 and v21.1.0.0.

Licence

Copyright (c) 2015, University of Kaiserslautern
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:

1. Redistributions of source code must retain the above copyright notice,
   this list of conditions and the following disclaimer.

2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

3. Neither the name of the copyright holder nor the names of its
   contributors may be used to endorse or promote products derived from
   this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Authors: Matthias Jung

tukl-msd / gem5.bare-metal

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gem5 ARM Bare-Metal Example

Licence