academic/gem5: Added (open-source system-level & CPU simulator)

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

academic/gem5/README

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+  The gem5 simulator is a modular platform for computer-system 
+architecture research, encompassing system-level architecture as 
+well as processor microarchitecture. gem5 is a community led project
+ with an open governance model.
+
+  gem5 was originally conceived for computer architecture research
+in academia, but it has grown to be used in computer system design
+by academia, industry for research, and in teaching. 
+
+By default it's build the X86 simulator, you can set to other
+architectures with a environment variable as following:
+ - MIPS=yes
+ - POWER=yes
+ - RISCV=yes
+ - SPARC=yes
+
+Optional:
+ - protobuf-c (for tracing support)
+ - hdf5
+

academic/gem5/gem5.SlackBuild

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+#!/bin/bash
+
+# Slackware build script for gem5
+
+# Copyright 2022 William PC - Seattle, USA
+# All rights reserved.
+#
+# Redistribution and use of this script, with or without modification, is
+# permitted provided that the following conditions are met:
+#
+# 1. Redistributions of this script must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR "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 AUTHOR 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 NEGLIGENCE OR
+#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+cd $(dirname $0) ; CWD=$(pwd)
+
+PRGNAM=gem5
+VERSION=${VERSION:-20.1.0.5}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+PKGTYPE=${PKGTYPE:-tgz}
+
+
+if [ -z "$ARCH" ]; then
+  case "$( uname -m )" in
+    i?86) ARCH=i586 ;;
+    arm*) ARCH=arm ;;
+       *) ARCH=$( uname -m ) ;;
+  esac
+fi
+
+# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
+# the name of the created package would be, and then exit. This information
+# could be useful to other scripts.
+if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
+  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
+  exit 0
+fi
+
+TMP=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i586" ]; then
+  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "i686" ]; then
+  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
+  LIBDIRSUFFIX=""
+elif [ "$ARCH" = "x86_64" ]; then
+  SLKCFLAGS="-O2 -fPIC"
+  LIBDIRSUFFIX="64"
+else
+  SLKCFLAGS="-O2"
+  LIBDIRSUFFIX=""
+fi
+
+set -e
+
+rm -rf $PKG
+mkdir -p $TMP $PKG $OUTPUT
+cd $TMP
+rm -rf $PRGNAM-$VERSION
+tar xvf $CWD/$PRGNAM-$VERSION.tar.gz
+cd $PRGNAM-$VERSION
+
+chown -R root:root .
+find -L . \
+ \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
+  -o -perm 511 \) -exec chmod 755 {} \; -o \
+ \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
+  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;
+
+
+if [ "${ARM:-no}" == "yes" ]; then
+  GEM5_ISA="ARM"
+  SCONS_OPTS="USE_SYSTEMC=no"
+fi
+
+if [ "${MIPS:-no}" == "yes" ]; then
+  GEM5_ISA="$GEM5_ISA MIPS"
+fi
+
+if [ "${POWER:-no}" == "yes" ]; then
+  GEM5_ISA="$GEM5_ISA POWER"
+fi
+
+if [ "${RISCV:-no}" == "yes" ]; then
+  GEM5_ISA="$GEM5_ISA RISCV"
+fi
+
+if [ "${RISCV:-no}" == "yes" ]; then
+  GEM5_ISA="$GEM5_ISA SPARC"
+fi
+
+if [ ! "${X86:-yes}" == "no" ]; then
+  GEM5_ISA="$GEM5_ISA X86"
+elif [ -z $GEM5_ISA ]; then
+  echo "At least one ISA must be enabled"
+  echo "The following ISA are available"
+  echo "X86 ARM MIPS POWER RISCV SPARC"
+fi
+
+if [ "${DEBUG:-no}" == "yes" ]; then
+  VARIANT=debug
+elif [ "${OPT:-no}" == "yes" ]; then
+  VARIANT=opt
+else
+  VARIANT=fast
+fi
+
+for gem5_isa in $GEM5_ISA; do
+  CCFLAGS_EXTRA="$SLKCFLAGS" \
+  scons $SCONS_OPTS build/$gem5_isa/gem5.$VARIANT
+done
+
+INSTALL_DIR=$PKG/opt/gem5-$VERSION
+
+# install binary
+mkdir -p $INSTALL_DIR/bin
+for gem5_isa in $GEM5_ISA; do
+  cp -a build/$gem5_isa/gem5.$VARIANT \
+        $INSTALL_DIR/bin/gem5-$gem5_isa\.$VARIANT
+done
+
+# install auxiliar files/tools
+cp -a configs $INSTALL_DIR
+cp -a system $INSTALL_DIR
+cp -a tests $INSTALL_DIR
+cp -a util $INSTALL_DIR
+
+
+# Don't ship .la files:
+rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la
+
+find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
+  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+find $PKG -depth -type d -empty -delete || true
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a CODE-OF-CONDUCT.md CONTRIBUTING.md COPYING LICENSE \
+       MAINTAINERS RELEASE-NOTES.md $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE

academic/gem5/gem5.info

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+PRGNAM="gem5"
+VERSION="20.1.0.5"
+HOMEPAGE="https://www.gem5.org"
+DOWNLOAD="https://github.com/gem5/gem5/archive/v20.1.0.5/gem5-20.1.0.5.tar.gz"
+MD5SUM="323f9a6eab649fbf7e12746695c0aeed"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+REQUIRES=""
+MAINTAINER="William PC"
+EMAIL="w_calandrini[at]hotmail[dot]com"

academic/gem5/slack-desc

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+# HOW TO EDIT THIS FILE:
+# The "handy ruler" below makes it easier to edit a package description.
+# Line up the first '|' above the ':' following the base package name, and
+# the '|' on the right side marks the last column you can put a character in.
+# You must make exactly 11 lines for the formatting to be correct.  It's also
+# customary to leave one space after the ':' except on otherwise blank lines.
+
+    |-----handy-ruler------------------------------------------------------|
+gem5: gem5 (gem5 is an open-source system-level and processor simulator)
+gem5:
+gem5:   The gem5 simulator is a modular platform for computer-system 
+gem5: architecture research, encompassing system-level architecture as 
+gem5: well as processor microarchitecture. gem5 is a community led project
+gem5:  with an open governance model.
+gem5:   gem5 was originally conceived for computer architecture research
+gem5: in academia, but it has grown to be used in computer system design
+gem5: by academia, industry for research, and in teaching.
+gem5:
+gem5: