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