system/prelink: Added (ELF prelinking utility)

Signed-off-by: Robby Workman <rworkman@slackbuilds.org>

system/prelink/README

@@ -0,0 +1,13 @@
+Prelink is a program that modifies ELF shared libraries and ELF dynamically 
+linked binaries in such a way that the time needed for the dynamic linker to 
+perform relocations at startup significantly decreases.  Due to fewer 
+relocations, the run-time memory consumption decreases as well (especially 
+the number of unshareable pages).  The prelinking information is only used 
+at startup time if none of the dependent libraries have changed since 
+prelinking; otherwise, programs are relocated normally.
+
+There is a script in the prelink documentation directory that is suitable 
+for a cron job.  Before setting up a cron job, first run prelink on the 
+system and then read the script and modify it as needed.
+
+This requires libelf.

system/prelink/doinst.sh

@@ -0,0 +1,14 @@
+config() {
+  NEW="$1"
+  OLD="$(dirname $NEW)/$(basename $NEW .new)"
+  # If there's no config file by that name, mv it over:
+  if [ ! -r $OLD ]; then
+    mv $NEW $OLD
+  elif [ "$(cat $OLD | md5sum)" = "$(cat $NEW | md5sum)" ]; then
+    # toss the redundant copy
+    rm $NEW
+  fi
+  # Otherwise, we leave the .new copy for the admin to consider...
+}
+
+config /etc/prelink.conf.new

system/prelink/prelink.SlackBuild

@@ -0,0 +1,107 @@
+#!/bin/sh
+
+# Slackware build package for prelink
+
+# Copyright 2010  Ozan Türkyılmaz İstanbul, TUR
+# 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.
+
+PRGNAM=prelink
+VERSION=${VERSION:-20100106}
+BUILD=${BUILD:-1}
+TAG=${TAG:-_SBo}
+
+if [ -z "$ARCH" ]; then
+	case "$( uname -m )" in
+		i?86) ARCH=i486 ;;
+		arm*) ARCH=arm ;;
+		*) ARCH=$( uname -m ) ;;
+	esac
+fi
+
+CWD=$(pwd)
+TPM=${TMP:-/tmp/SBo}
+PKG=$TMP/package-$PRGNAM
+OUTPUT=${OUTPUT:-/tmp}
+
+if [ "$ARCH" = "i486" ]; then
+	SLKCFLAGS="-O2 -march=i486 -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
+tar xvf $CWD/$PRGNAM-$VERSION.tar.bz2
+cd $PRGNAM
+chown -R root:root .
+find . \
+\( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
+ -exec chmod 755 {} \; -o \
+\( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
+ -exec chmod 644 {} \;
+
+CFLAGS="$SLKFLAGS" \
+CXXFLAGS="$SLKFLAGS" \
+./configure \
+ --prefix=/usr \
+ --libdir=/usr/lib${LIBDIRSUFFIX} \
+ --sysconfdir=/etc \
+ --localstatedir=/var \
+ --mandir=/usr/man \
+ --build=$ARCH-slackware-linux
+
+make
+make -C doc
+make install DESTDIR=$PKG
+
+find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF \
+ | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true
+
+find $PKG/usr/man -type f -exec gzip -9 {} \;
+for i in $( find $PKG/usr/man -type l ) ; do ln -s $( readlint $i ).gz $i.gz ; rm $i ; done
+
+mkdir -p $PKG/etc
+cat $CWD/prelink.conf > $PKG/etc/prelink.conf.new
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a \
+ AUTHORS COPYING ChangeLog INSTALL NEWS README THANKS TODO doc/*.pdf \
+ $PKG/usr/doc/$PRGNAM-$VERSION
+cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild
+cat $CWD/prelink.cron > $PKG/usr/doc/$PRGNAM-$VERSION/prelink.cron
+
+mkdir -p $PKG/install
+cat $CWD/slack-desc > $PKG/install/slack-desc
+cat $CWD/doinst.sh > $PKG/install/doinst.sh
+
+cd $PKG
+/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}

system/prelink/prelink.conf

@@ -0,0 +1,33 @@
+# This config file contains a list of directories both with binaries
+# and libraries prelink should consider by default.
+# If a directory name is prefixed with `-l ', the directory hierarchy
+# will be walked as long as filesystem boundaries are not crossed.
+# If a directory name is prefixed with `-h ', symbolic links in a
+# directory hierarchy are followed.
+# Directories or files with `-b ' prefix will be blacklisted.
+# For more details check man prelink
+# This config file is from Debian package of prelink.
+-b *.la
+-b *.png
+-b *.py
+-b *.pl
+-b *.pm
+-b *.sh
+-b *.xml
+-b *.xslt
+-b *.a
+-b *.js
+-b /lib/modules
+-b /usr/lib/locale
+-l /usr/local/sbin
+-l /sbin
+-l /usr/sbin
+-l /usr/local/bin
+-l /bin
+-l /usr/bin
+-l /usr/X11R6/bin
+-l /usr/games
+-l /usr/local/lib
+-l /lib
+-l /usr/lib
+-l /usr/X11R6/lib

system/prelink/prelink.cron

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+#!/bin/sh
+
+renice +19 -p $$ > /dev/null 2>&1
+
+#By default, we'll do quick cron runs of prelink
+PRELINK_OPTS="-amRq"
+#If you don't want to do this, then use this opts.
+#PRELINK_OPT="-amR"
+
+/usr/sbin/prelink $PRELINK_OPTS

system/prelink/prelink.info

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+PRGNAM="prelink"
+VERSION="20100106"
+HOMEPAGE="http://people.redhat.com/jakub/prelink/"
+DOWNLOAD="http://people.redhat.com/jakub/prelink/prelink-20100106.tar.bz2"
+MD5SUM="56e2a1b5a478795352bf6e4d2bc6e0ab"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+MAINTAINER="Ozan Türkyılmaz"
+EMAIL="ozan.turkyilmaz@gmail.com"
+APPROVED="rworkman"

system/prelink/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------------------------------------------------------|
+prelink: prelink (ELF prelinking utility)
+prelink:
+prelink: prelink is a program which modifies shared ELF libraries and 
+prelink: dynamically linked ELF binaries so that the time the dynamic 
+prelink: linker needs for their relocation at startup is significantly 
+prelink: decreased.  Also, due to fewer relocations, the run-time 
+prelink: memory consumption of libraries/binaries is decreased.
+prelink:
+prelink: Homepage: http://people.redhat.com/jakub/prelink/
+prelink:
+prelink: