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#!/usr/bin/dash
#
# Copyright (c) 2003, 2005, 2006, 2008, 2011, 2012 Jason Tishler
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# See the COPYING file for full license information.
#
# Written by Jason Tishler <jason@tishler.net>
#
# $Id$
#
# Define constants
tp1=${0%/*}
tp2=${tp1:-.}
PATH=$(cd $tp2 && pwd):/usr/bin:/bin
ProgramName=${0##*/}
ProgramOptions='48b:io:ps:tT:v'
DefaultBaseAddress=0x70000000
DefaultOffset=0
DefaultTouch=
DefaultNoDyn=
DefaultVerbose=
DefaultFileList=
DefaultSuffixes='dll|so|oct'
DatabaseFlag=-s
# Define functions
usage()
{
echo "usage: ${ProgramName} [-b BaseAddress] [-o Offset] [-s DllSuffix] [-T FileList | -] [-4|-8] [-p] [-t] [-i] [-v]"
exit 1
}
cleanup()
{
rm -f "${TmpFile}"
exit ${ExitCode}
}
# Set traps
trap cleanup 1 2 15
# Set defaults
BaseAddress=""
Offset="${DefaultOffset}"
Touch="${DefaultTouch}"
NoDyn="${DefaultNoDyn}"
Verbose="${DefaultVerbose}"
FileList="${DefaultFileList}"
Suffixes="${DefaultSuffixes}"
db_file_i386="/etc/rebase.db.i386"
db_file_x86_64="/etc/rebase.db.x86_64"
check_for_dash_only="yes"
case `uname -m` in
i[3456]86)
db_file="${db_file_i386}";
Mach="-4"
;;
x86_64)
Mach="-8"
db_file="${db_file_x86_64}"
;;
esac
# Determine platform
Platform=`uname -s`
case $Platform in
*MINGW* | *mingw* ) Platform=mingw ;;
*CYGWIN* | *cygwin* ) Platform=cygwin ;;
*MSYS* | *msys* ) Platform=msys ;;
* )
echo "Unsupported platform: $Platform" 1>&2
exit 1
;;
esac
# On x86_64 Cygwin, set DefaultAddressBase to 0x4:00000000
case $Platform in
cygwin | msys )
[ `uname -m` = "x86_64" ] && DefaultBaseAddress=0x400000000
;;
* )
;;
esac
# Parse command line arguments
while getopts "${ProgramOptions}" Option "$@"
do
case "${Option}" in
4)
db_file="${db_file_i386}";
Mach="-4"
;;
8)
Mach="-8"
db_file="${db_file_x86_64}"
;;
b)
BaseAddress="${OPTARG}";;
o)
Offset="${OPTARG}";;
p)
check_for_dash_only="no";;
s)
Suffixes="${Suffixes}|${OPTARG}";;
t)
Touch="-t";;
T)
FileList="${OPTARG}";;
i)
DatabaseFlag=;;
v)
Verbose="-v";;
\?)
usage;;
esac
done
# Verify only ash or dash processes are running
if [ "${check_for_dash_only}" != "no" ]
then
ProcessResult=0
case $Platform in
mingw|msys )
/usr/bin/ps -s | /usr/bin/gawk '\
# Count number of running ash or dash. \
/\/usr\/bin\/(d)?ash(\.exe)?$/{ ash_cnt++; } \
# Count number of ps and gawk. \
/\/usr\/bin\/ps(\.exe)?$/{ cnt++; } \
/\/usr\/bin\/gawk(\.exe)?$/{ cnt++; } \
END{ \
# Uncomment for testing: \
# printf "TOTAL: %d CNT: %d ASH_CNT: %d\n", NR, cnt, ash_cnt; \
# Only one of ps and gawk each may run. \
if (cnt > 2) \
exit 0; \
# The total number of allowed processes is one less than the \
# number of input lines. The extra line is the ps header output. \
if (NR - cnt - ash_cnt > 1) \
exit 0; \
# All is well. \
exit 1; \
}'
ProcessResult=$?
;;
cygwin )
grep -E -q -i -v '/d?ash(.exe)?$' /proc/[0-9]*/exename
ProcessResult=$?
;;
esac
if [ $ProcessResult -eq 0 -a -z "${RebaseDebug}" ]
then
echo "${ProgramName}: only ash or dash processes are allowed during rebasing"
echo " Exit all Cygwin processes and stop all Cygwin services."
echo " Execute ash (or dash) from Start/Run... or a cmd or command window."
echo " Execute '/usr/bin/rebaseall' from ash (or dash)."
exit 2
fi
fi
# Check if rebase database already exists.
database_exists="no"
[ -f "${db_file}" ] && database_exists="yes"
# If BaseAddress has not been specified, and the rebase database doesn't exist
# yet, set BaseAddress to default, unless ignore database has been specified.
if [ -z "${BaseAddress}" -a "${database_exists}" != "yes" -a -n "${DatabaseFlag}" ]
then
BaseAddress=$DefaultBaseAddress
fi
# Set temp directory
TmpDir="${TMP:-${TEMP:-/tmp}}"
# Validate temp directory
if [ ! -d "$TmpDir" ]
then
echo "$ProgramName: '$TmpDir' is not a directory"
exit 2
fi
if [ ! -w "$TmpDir" ]
then
echo "$ProgramName: '$TmpDir' is not writable"
exit 2
fi
# Validate user supplied file list, if necessary
if [ -n "$FileList" -a ! -r "$FileList" -a "$FileList" != - ]
then
echo "$ProgramName: '$FileList' is not readable"
exit 2
fi
# Set temp file
TmpFile="$TmpDir/rebase.lst"
# Prepend user supplied file list, if any
if [ -n "${FileList}" ]
then
cat "${FileList}" >"${TmpFile}"
else
[ -f "${TmpFile}" ] && rm -f "${TmpFile}"
touch "${TmpFile}"
fi
# Create rebase list
case $Platform in
cygwin)
find /etc/setup -name '*.lst.gz' | xargs gzip -d -c |
grep -E "\.($Suffixes)\$" |
sed -e '/\/cygwin1\.dll$/d' -e '/\/cyglsa.*\.dll$/d' \
-e '/sys-root\/mingw/d' -e 's/^/\//' \
-e '/\/d\?ash\.exe$/d' -e '/\/rebase\.exe$/d' >>"${TmpFile}"
# some interpreters include a method for installing addons outside of the
# package manager, such as CPAN and RubyGems.
for d in /usr/lib/perl5/site_perl /usr/lib/py*/site-packages \
/usr/lib/py*/lib-dynload \
/usr/lib/php /usr/lib/R/site-library /usr/lib/rub*/gems \
/usr/lib/octave/site
do
if [ -d $d ]
then
find $d -type f | grep -E "\.($Suffixes)\$" >>"${TmpFile}"
fi
done
# Unconditionally add the -n flag so rebased DLLs get the
# dynamicbase flag removed.
NoDyn='-n'
;;
mingw|msys)
for f in /usr/bin /usr/lib
do
find $f -type f |
grep -E "\.($Suffixes)\$" |
sed -e '/\/msys-2\.0.*\.dll$/d' -e '/\/cygwin1\.dll$/d' \
-e '/\/cyglsa.*\.dll$/d' -e '/\/d\?ash\.exe$/d' \
-e '/\/rebase\.exe$/d' >>"$TmpFile"
done
# some interpreters include a method for installing addons outside of the
# package manager, such as CPAN and RubyGems.
for d in /usr/lib/perl5/site_perl /usr/lib/py*/site-packages \
/usr/lib/php /usr/lib/R/site-library /usr/lib/rub*/gems \
/usr/lib/octave/site
do
if [ -d $d ]
then
find $d -type f | grep -E "\.($Suffixes)\$" >>"${TmpFile}"
fi
done
# Unconditionally add the -n flag so rebased DLLs get the
# dynamicbase flag removed.
NoDyn='-n'
;;
esac
if [ -z "${BaseAddress}" ]
then
rebase "${Verbose}" "${Touch}" "${NoDyn}" "${DatabaseFlag}" "${Mach}" -T "${TmpFile}"
else
rebase "${Verbose}" "${Touch}" "${NoDyn}" "${DatabaseFlag}" "${Mach}" -b "${BaseAddress}" -o "${Offset}" -T "${TmpFile}"
fi
ExitCode=$?
# Clean up
cleanup