libraries/electric-fence: Added (A malloc(3) debugger)

Signed-off-by: Niels Horn <niels.horn@slackbuilds.org>

libraries/electric-fence/README

@@ -0,0 +1,30 @@
+Electric Fence is a debugger that uses virtual memory hardware to detect
+illegal memory accesses. It can detect two common programming bugs:
+software that overruns or underruns the boundaries of a malloc() memory
+allocation, and software that touches a memory allocation that has been
+released by free().
+
+Unlike other malloc() debuggers, Electric Fence will detect read accesses
+as well as writes, and it will stop and pinpoint the exact instruction
+that causes an error. It is not as thorough as Purify, however.
+
+In order to debug a program it needs to be linked with Electric Fence's
+library or dynamic linking needs to be used; README.Debian explains that
+in detail.
+
+In addition to the static library (libefence.a), this package also
+contains a shared library of electric fence (libefence.so). Thus, you
+don't need to recompile your programs any more, all you need to do is:
+
+LD_PRELOAD=libefence.so ./your-buggy-program
+
+and libefence's malloc will be used.
+
+If you're using c++, and you and want to statically link your c++
+programs, you shouldn't use g++ to link libefence.a, but rather:
+    gcc -o myprog myprog.o -lstdc++ -lg++ -lefence
+(if you use g++, the order is different, and efence's malloc doesn't
+get used)
+
+Be sure to read the `libefence` manpage which describes how to set
+various environment variables which alter lebefence's behavior

libraries/electric-fence/electric-fence.SlackBuild

@@ -0,0 +1,110 @@
+#!/bin/sh
+
+# Slackware build script for Electric Fence
+
+# Copyright 2009-2010  Sean Donner (sean.donner@gmail.com)
+# 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=electric-fence
+VERSION=${VERSION:-2.1.16}
+BUILD=${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=$(pwd)
+TMP=${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 $PRGNAM-$VERSION
+tar xfvz $CWD/${PRGNAM}_$VERSION.tar.gz
+cd $PRGNAM-$VERSION
+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 {} \;
+
+# Compile and install static library
+make CFLAGS="${SLKCFLAGS//-fPIC/}" CXXFLAGS="${SLKCFLAGS//-fPIC/}"
+install -D -m 644 libefence.a $PKG/usr/lib${LIBDIRSUFFIX}/libefence.a
+
+# Compile and install shared object library
+rm *.o
+make CFLAGS="$SLKCFLAGS -fPIC -fPIC" CXXFLAGS="$SLKCFLAGS -fPIC"
+gcc -shared -Wl,-soname,libefence.so.0 -o libefence.so.0.0 efence.o page.o print.o -lc -lpthread
+install -D -m 755 libefence.so.0.0 $PKG/usr/lib${LIBDIRSUFFIX}/libefence.so.0.0
+
+# Install manpage
+install -D -m 644 libefence.3 $PKG/usr/man/man3/libefence.3
+
+# Create library symlinks
+( cd $PKG/usr/lib${LIBDIRSUFFIX}
+  ln -s libefence.so.0.0 libefence.so.0
+  ln -s libefence.so.0   libefence.so
+)
+
+# Strip debugging
+  find $PKG -exec file {} + | sed -n '/ELF.*executable\|shared object/s/:.*$//p' | \
+  	xargs strip --strip-unneeded 2> /dev/null || true
+  find $PKG -exec file {} + | sed -n '/current ar archive/s/:.*$//p' | \
+  	xargs strip --strip-debug 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 $( readlink $i ).gz $i.gz ; rm $i ; done
+
+mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
+cp -a COPYING README debian/changelog debian/README.gdb \
+   $PKG/usr/doc/$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:-tgz}

libraries/electric-fence/electric-fence.info

@@ -0,0 +1,10 @@
+PRGNAM="electric-fence"
+VERSION="2.1.16"
+HOMEPAGE="http://packages.debian.org/sid/electric-fence"
+DOWNLOAD="http://ftp.debian.org/debian/pool/main/e/electric-fence/electric-fence_2.1.16.tar.gz"
+MD5SUM="9b0055bb54604fb77712d2096442ad53"
+DOWNLOAD_x86_64=""
+MD5SUM_x86_64=""
+MAINTAINER="Sean Donner"
+EMAIL="sean.donner@gmail.com"
+APPROVED="Niels Horn"

libraries/electric-fence/slack-desc

@@ -0,0 +1,19 @@
+# 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 ':'.
+
+              |-----handy-ruler------------------------------------------------------|
+electric-fence: Electric Fence (A malloc(3) debugger)
+electric-fence:
+electric-fence: Electric Fence is a debugger that uses virtual memory hardware to
+electric-fence: detect illegal memory accesses. It can detect two common programming
+electric-fence: bugs: software that overruns or underruns the boundaries of a malloc()
+electric-fence: memory allocation, and software that touches a memory allocation that
+electric-fence: has been released by free().
+electric-fence:
+electric-fence:
+electric-fence:
+electric-fence: