1 #!/bin/bash 2 # 3 # Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. 4 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 # 6 # This code is free software; you can redistribute it and/or modify it 7 # under the terms of the GNU General Public License version 2 only, as 8 # published by the Free Software Foundation. 9 # 10 # This code is distributed in the hope that it will be useful, but WITHOUT 11 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 # version 2 for more details (a copy is included in the LICENSE file that 14 # accompanied this code). 15 # 16 # You should have received a copy of the GNU General Public License version 17 # 2 along with this work; if not, write to the Free Software Foundation, 18 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 # 20 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 # or visit www.oracle.com if you need additional information or have any 22 # questions. 23 # 24 25 if [ $# -lt 2 ] 26 then 27 echo "Diff two executables. Return codes:" 28 echo "0 - no diff" 29 echo "1 - Identical symbols AND size, BUT not bytewise identical" 30 echo "2 - Identical symbols BUT NEW size" 31 echo "3 - Differences, content BUT SAME size" 32 echo "4 - Differences, content AND size" 33 echo "10 - Could not perform diff" 34 echo "Use 'quiet' to disable any output." 35 echo "Syntax: $0 file1 file2 [quiet]" 36 exit 10 37 fi 38 39 if [ ! -f $1 ] 40 then 41 echo $1 does not exist 42 exit 10 43 fi 44 45 if [ ! -f $2 ] 46 then 47 echo $2 does not exist 48 exit 10 49 fi 50 51 if [ "`uname`" == "SunOS" ]; then 52 if [ -f "`which nm`" ]; then 53 NM=nm 54 elif [ -f "`which gnm`" ]; then 55 NM=gnm 56 else 57 echo "No nm command found" 58 exit 10 59 fi 60 LDD=ldd 61 elif [ $OSTYPE == "cygwin" ]; then 62 NM="$VS100COMNTOOLS/../../VC/bin/amd64/dumpbin.exe" 63 NM_ARGS=/exports 64 LDD= 65 elif [ "`uname`" == "Darwin" ]; then 66 NM=nm 67 LDD="otool -L" 68 else 69 NM=nm 70 LDD=ldd 71 fi 72 73 # Should the differences be viewed? 74 VIEW= 75 # You can do export DIFF=meld to view 76 # any differences using meld instead. 77 if [ -n "$DIFF" ]; then 78 DIFF="$DIFF" 79 else 80 DIFF=diff 81 fi 82 OLD=$(cd $(dirname $1) && pwd)/$(basename $1) 83 NEW=$(cd $(dirname $2) && pwd)/$(basename $2) 84 85 OLD_SIZE=$(ls -l "$OLD" | awk '{ print $5 }') 86 NEW_SIZE=$(ls -l "$NEW" | awk '{ print $5 }') 87 88 if [ $# -gt 3 ] 89 then 90 ROOT1=$(cd $3 && pwd) 91 ROOT2=$(cd $4 && pwd) 92 OLD_NAME=$(echo $OLD | sed "s|$ROOT1/||") 93 NEW_NAME=$(echo $NEW | sed "s|$ROOT2/||") 94 if [ "x$5" == "xview" ]; then VIEW=view; fi 95 else 96 ROOT1=$(dirname $OLD)/ 97 ROOT2=$(dirname $NEW)/ 98 OLD_NAME=$OLD 99 NEW_NAME=$NEW 100 if [ "x$3" == "xview" ]; then VIEW=view; fi 101 fi 102 103 if cmp $OLD $NEW > /dev/null 104 then 105 # The files were bytewise identical. 106 echo Identical: $OLD_NAME 107 exit 0 108 fi 109 110 OLD_SYMBOLS=$COMPARE_ROOT/$OLD_NAME.old 111 NEW_SYMBOLS=$COMPARE_ROOT/$NEW_NAME.new 112 113 mkdir -p $(dirname $OLD_SYMBOLS) 114 mkdir -p $(dirname $NEW_SYMBOLS) 115 116 if [ $OSTYPE == "cygwin" ]; then 117 "$NM" $NM_ARGS $OLD | grep " = " > $OLD_SYMBOLS 118 "$NM" $NM_ARGS $NEW | grep " = " > $NEW_SYMBOLS 119 "$NM" $NM_ARGS $OLD > $OLD_SYMBOLS.full 120 "$NM" $NM_ARGS $NEW > $NEW_SYMBOLS.full 121 else 122 # Strip the addresses, just compare the ordering of the symbols. 123 $NM $OLD | cut -f 2- -d ' ' > $OLD_SYMBOLS 124 $NM $NEW | cut -f 2- -d ' ' > $NEW_SYMBOLS 125 # But store the full information for easy diff access. 126 $NM $OLD > $OLD_SYMBOLS.full 127 $NM $NEW > $NEW_SYMBOLS.full 128 fi 129 130 DIFFS=$(LANG=C diff $OLD_SYMBOLS $NEW_SYMBOLS) 131 132 if [ "${LDD}" ] 133 then 134 NAME=`basename $OLD` 135 TMP=$COMPARE_ROOT/ldd/ldd.${NAME} 136 rm -rf "${TMP}" 137 mkdir -p "${TMP}" 138 139 (cd "${TMP}" && cp $OLD . && ${LDD} ${NAME} | awk '{ print $1;}' | sort | tee dep.old | uniq > dep.uniq.old) 140 (cd "${TMP}" && cp $NEW . && ${LDD} ${NAME} | awk '{ print $1;}' | sort | tee dep.new | uniq > dep.uniq.new) 141 (cd "${TMP}" && rm -f ${NAME}) 142 143 DIFFS_DEP=$(LANG=C diff "${TMP}/dep.old" "${TMP}/dep.new") 144 DIFFS_UNIQ_DEP=$(LANG=C diff "${TMP}/dep.uniq.old" "${TMP}/dep.uniq.new") 145 146 DEP_MSG= 147 if [ -z "${DIFFS_UNIQ_DEP}" -a -z "${DIFFS_DEP}" ]; then 148 DEP_MSG="Identical dependencies" 149 elif [ -z "${DIFFS_UNIQ_DEP}" ]; then 150 DEP_MSG="Redundant duplicate dependencies added" 151 RES=1 152 else 153 DEP_MSG="DIFFERENT dependencies" 154 RES=1 155 fi 156 fi 157 158 RESULT=0 159 160 if [ -n "$DIFFS" ]; then 161 if [ $OLD_SIZE -ne $NEW_SIZE ] 162 then 163 echo Differences, content AND size : $DEP_MSG : $OLD_NAME 164 RESULT=4 165 else 166 echo Differences, content BUT SAME size: $DEP_MSG : $OLD_NAME 167 RESULT=3 168 fi 169 if [ "x$VIEW" == "xview" ]; then 170 LANG=C $DIFF $OLD_SYMBOLS $NEW_SYMBOLS 171 fi 172 else 173 if [ $OLD_SIZE -ne $NEW_SIZE ] 174 then 175 echo Identical symbols BUT NEW size : $DEP_MSG : $OLD_NAME 176 RESULT=2 177 else 178 echo Identical symbols AND size, BUT not bytewise identical: $DEP_MSG : $OLD_NAME 179 RESULT=1 180 fi 181 fi 182 183 exit $RESULT 184 185 186