All contents original from https:\/\/github.com\/dependablecomputinglab<\/p>\n
This article is just a backup incase myself later using.<\/p>\n
for Ubuntu Download This is a example for ARM architecture<\/p>\n This is example for building gem5 for ARM ISA<\/p>\n All simulation statistics are saved as file m5out\/stats.txt<\/p>\n You can get benchmark by:<\/p>\n In our case, we will download MiBench<\/em>, then cross-compile to get benchmark.<\/p>\n Initially, you can see Makefile<\/em> in directory ‘mibench\/automotive\/qsort<\/em>‘ looks like:<\/p>\n Replace all<\/strong> ‘gcc<\/em>‘ to ‘arm-linux-gnueabi-gcc<\/em>‘, so the Makefile<\/em> looks like:<\/p>\n To build, execute<\/p>\n NOTE<\/strong> When you cross-compile, you must use ‘-static<\/strong>‘ option. If there is no ‘-static<\/strong>‘ option in Makefile<\/em>, you have to insert it. You have to insert ‘-static<\/strong>‘ option. Then, Makefile<\/em> will look like:<\/p>\n $ <gem5 binary<\/em>> [gem5 options<\/em>] <gem5 script<\/em>> [gem5 script options<\/em>]<\/p>\n For example, if you want to simulate qsort_large<\/em>,<\/p>\n NOTE<\/strong> The diff<\/em> is a program in linux. For example, clone this repository and execute:<\/p>\n If you use ‘-u<\/strong>‘ option like this:<\/p>\n Redirection may make you happy! Try this:<\/p>\n You can see the file goodbye.diff<\/em>.<\/p>\n <\/p>\n","protected":false},"excerpt":{"rendered":" All contents original from https:\/\/github.com\/dependablecomputinglab This article is just a backup incase myself later using. Gem5 Installation step 1: install prerequisites for Ubuntu $ sudo apt-get update $ sudo apt-get upgrade $ sudo apt-get install -y git build-essential g++ zlib1g-dev scons m4 swig python-dev step 2: Download & Build Download<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[],"class_list":["post-126","post","type-post","status-publish","format-standard","hentry","category-techniques"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.wanggengyu.com\/index.php?rest_route=\/wp\/v2\/posts\/126","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wanggengyu.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wanggengyu.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wanggengyu.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wanggengyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=126"}],"version-history":[{"count":1,"href":"https:\/\/www.wanggengyu.com\/index.php?rest_route=\/wp\/v2\/posts\/126\/revisions"}],"predecessor-version":[{"id":684,"href":"https:\/\/www.wanggengyu.com\/index.php?rest_route=\/wp\/v2\/posts\/126\/revisions\/684"}],"wp:attachment":[{"href":"https:\/\/www.wanggengyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=126"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wanggengyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=126"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wanggengyu.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=126"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\n
\n$ sudo apt-get update
\n$ sudo apt-get upgrade
\n$ sudo apt-get install -y git build-essential g++ zlib1g-dev scons m4 swig python-dev
\n<\/code><\/p>\nstep 2: Download & Build<\/h3>\n
\n
\n
\n$ cd ~
\n~$ git clone https:\/\/github.com\/gem5\/gem5
\n<\/code>
\nBuild<\/p>\n\n
$ cd ~\/gem5
\n~\/gem5$ scons build\/ARM\/gem5.opt<\/code><\/p>\nstep 3: Run benchmark<\/h3>\n
\n
\n$ cd ~
\n~$ git clone https:\/\/github.com\/gem5\/gem5
\n<\/code><\/p>\n<\/h4>\n
Simulation Process<\/h2>\n
\n
<\/a>STEP1: Get Benchmark<\/h3>\n
\n
<\/a>Download MiBench<\/em><\/strong><\/h4>\n
$ git clone https:\/\/github.com\/embecosm\/mibench.git<\/pre>\n<\/div>\n
<\/a>Install Cross-compiler<\/h4>\n
$ sudo apt-get install gcc-arm-linux-gnueabi<\/pre>\n<\/div>\n
<\/a>Cross-compile to build binary<\/h4>\n
...\r\ngcc -static qsort_large.c -O3 -o qsort_large -lm \r\n...<\/pre>\n<\/div>\n
...\r\narm-linux-gnueabi-gcc -static qsort_large.c -O3 -o qsort_large -lm \r\n...<\/pre>\n<\/div>\n
$ make<\/pre>\n<\/div>\n
\nFor example, if your Makefile<\/em> looks like:<\/p>\n...\r\narm-linux-gnueabi-gcc qsort_large.c -O3 -o qsort_large -lm\r\n...<\/pre>\n<\/div>\n
...\r\narm-linux-gnueabi-gcc -static qsort_large.c -O3 -o qsort_large -lm \r\n...<\/pre>\n<\/div>\n
<\/a>STEP2: Perform Simulation<\/h3>\n
<\/a>Useful gem5<\/em> script options<\/h4>\n
\n
$ .\/build\/ARM\/gem5.opt -re configs\/example\/se.py --cpu-type=atomic -c <<\/span>path to qsort_large><\/span> -o <<\/span>path to input_large.dat><\/span><\/pre>\n<\/div>\n
\nIf you want to put multiple input to binary, you have to use quotation marks(“) and white spaces.
\nFor example, if your fft<\/em> binary is in ~\/mibench\/telecom\/FFT<\/em>,<\/p>\n$ .\/build\/ARM\/gem5.opt -re configs\/example\/se.py --cpu-type=timing -c ~<\/span>\/mibench\/telecom\/FFT\/fft -o \"<\/span>100 64\"<\/span><\/span><\/pre>\n<\/div>\n<\/a>STEP3: Analyzing Simulation Statistics<\/h3>\n
<\/a>Find difference between two files with diff<\/em><\/h4>\n
\nThe diff<\/em> compares two files, line by line<\/strong>.
\nYou can use diff<\/em> by executing: $ diff [options<\/em>] <file1<\/em>> <file2<\/em>><\/strong><\/p>\n$ diff goodbye1.txt goodbye2.txt<\/pre>\n<\/div>\n
$ diff -u goodbye1.txt goodbye2.txt<\/pre>\n<\/div>\n
$ diff -u goodbye1.txt goodbye2.txt ><\/span> goodbye.diff<\/pre>\n<\/div>\n