jdk8-mips64-public: common/bin/difflib.sh@c8d320b48626 (annotated)

common/bin/difflib.sh@c8d320b48626 (annotated)

common/bin/difflib.sh

Tue, 03 Jul 2012 16:11:12 -0700

author: erikj
date: Tue, 03 Jul 2012 16:11:12 -0700
changeset 458: c8d320b48626
parent 445: efd26e051e50
permissions: -rw-r--r--

7181504: Update of latest build-infra Makefiles
Reviewed-by: ohair

 #!/bin/bash
 #
 # Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 #
 # This code is free software; you can redistribute it and/or modify it
 # under the terms of the GNU General Public License version 2 only, as
 # published by the Free Software Foundation.
 #
 # This code 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
 # version 2 for more details (a copy is included in the LICENSE file that
 # accompanied this code).
 #
 # You should have received a copy of the GNU General Public License version
 # 2 along with this work; if not, write to the Free Software Foundation,
 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 #
 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
 # Simple tool to diff two shared libraries.
 # Criterias: two shared libraries are considered equal if:
 # the file sizes are the same AND the symbols outputs from the nm command are equal
 if [ $# -lt 2 ]
 then
   echo "Diff two shared libs. Return codes:"
   echo "0 - no diff"
   echo "1 - Identical symbols AND size, BUT not bytewise identical"
   echo "2 - Identical symbols BUT NEW size"
   echo "3 - Differences, content BUT SAME size"
   echo "4 - Differences, content AND size"
   echo "10 - Could not perform diff"
   echo "Use 'quiet' to disable any output."
   echo "Syntax: $0 file1 file2 [quiet]"
   exit 10
 fi
 if [ ! -f $1 ]
 then
   echo $1 does not exist
   exit 10
 fi
 if [ ! -f $2 ]
 then
   echo $2 does not exist
   exit 10
 fi
 if [ "`uname`" == "SunOS" ]; then
     if [ -f "`which gnm`" ]; then
         NM=gnm
 # Jonas 2012-05-29: solaris native nm produces radically different output than gnm
 #                   so if using that...we need different filter than "cut -f 2-"
 #
     elif [ -f "`which nm`" ]; then
         NM=nm
     else
         echo "No nm command found"
         exit 10
     fi
     LDD=ldd
 elif [ $OSTYPE == "cygwin" ]; then
     NM="$VS100COMNTOOLS/../../VC/bin/amd64/dumpbin.exe"
     NM_ARGS=/exports
     LDD=
 elif [ "`uname`" == "Darwin" ]; then
     NM=nm
     LDD="otool -L"
 else
     NM=nm
     LDD=ldd
 fi
 # Should the differences be viewed?
 VIEW=
 # You can do export DIFF=meld to view
 # any differences using meld instead.
 if [ -n "$DIFF" ]; then
     DIFF="$DIFF"
 else
     DIFF=diff
 fi
 OLD=$(cd $(dirname $1) && pwd)/$(basename $1)
 NEW=$(cd $(dirname $2) && pwd)/$(basename $2)
 OLD_SIZE=$(ls -l "$OLD" | awk '{ print $5 }')
 NEW_SIZE=$(ls -l "$NEW" | awk '{ print $5 }')
 if [ $# -gt 3 ]
 then
     ROOT1=$(cd $3 && pwd)
     ROOT2=$(cd $4 && pwd)
     OLD_NAME=$(echo $OLD | sed "s|$ROOT1/||")
     NEW_NAME=$(echo $NEW | sed "s|$ROOT2/||")
     if [ "x$5" == "xview" ]; then VIEW=view; fi
 else
     ROOT1=$(dirname $OLD)/
     ROOT2=$(dirname $NEW)/
     OLD_NAME=$OLD
     NEW_NAME=$NEW
     if [ "x$3" == "xview" ]; then VIEW=view; fi
 fi
 OLD_SUFFIX="${OLD##*.}"
 NEW_SUFFIX="${NEW##*.}"
 if [ "$OLD_SUFFIX" != "$NEW_SUFFIX" ]; then
     echo The files do not have the same suffix type!
     exit 10
 fi
 if [ "$OLD_SUFFIX" != "so" ] && [ "$OLD_SUFFIX" != "dylib" ] && [ "$OLD_SUFFIX" != "dll" ]; then
     echo The files have to be .so, .dylib or .dll! They are $OLD_SUFFIX
     exit 10
 fi
 TYPE="$OLD_SUFFIX"
 if cmp $OLD $NEW > /dev/null
 then
     # The files were bytewise identical.
     echo Identical: $OLD_NAME
     exit 0
 fi
 OLD_SYMBOLS=$COMPARE_ROOT/nm.$OLD_NAME.old
 NEW_SYMBOLS=$COMPARE_ROOT/nm.$NEW_NAME.new
 mkdir -p $(dirname $OLD_SYMBOLS)
 mkdir -p $(dirname $NEW_SYMBOLS)
 if [ $OSTYPE == "cygwin" ]; then
     "$NM" $NM_ARGS $OLD | grep " = " > $OLD_SYMBOLS
     "$NM" $NM_ARGS $NEW | grep " = " > $NEW_SYMBOLS
     "$NM" $NM_ARGS $OLD > $OLD_SYMBOLS.full
     "$NM" $NM_ARGS $NEW > $NEW_SYMBOLS.full
 else
     # Strip the addresses, just compare the ordering of the symbols.
     $NM $OLD | cut -f 2- -d ' ' > $OLD_SYMBOLS
     $NM $NEW | cut -f 2- -d ' ' > $NEW_SYMBOLS
     # But store the full information for easy diff access.
     $NM $OLD  > $OLD_SYMBOLS.full
     $NM $NEW  > $NEW_SYMBOLS.full
 fi
 DIFFS=$(LANG=C diff $OLD_SYMBOLS $NEW_SYMBOLS)
 RESULT=0
 if [ "${LDD}" ]
 then
     NAME=`basename $OLD`
     TMP=$COMPARE_ROOT/ldd/ldd.${NAME}
     rm -rf "${TMP}"
     mkdir -p "${TMP}"
     (cd "${TMP}" && cp $OLD . && ${LDD} ${NAME} | awk '{ print $1;}' | sort | tee dep.old | uniq > dep.uniq.old)
     (cd "${TMP}" && cp $NEW . && ${LDD} ${NAME} | awk '{ print $1;}' | sort | tee dep.new | uniq > dep.uniq.new)
     (cd "${TMP}" && rm -f ${NAME})
     DIFFS_DEP=$(LANG=C diff "${TMP}/dep.old" "${TMP}/dep.new")
     DIFFS_UNIQ_DEP=$(LANG=C diff "${TMP}/dep.uniq.old" "${TMP}/dep.uniq.new")
     DEP_MSG=
     if [ -z "${DIFFS_UNIQ_DEP}" -a -z "${DIFFS_DEP}" ]; then
        DEP_MSG="Identical dependencies"
     elif [ -z "${DIFFS_UNIQ_DEP}" ]; then
        DEP_MSG="Redundant duplicate dependencies added"
        RES=1
     else
        DEP_MSG="DIFFERENT dependencies"
        RES=1
     fi
 fi
 if [ -n "$DIFFS" ]; then
    if [ $OLD_SIZE -ne $NEW_SIZE ]
    then
        echo Differences, content AND size     : $DEP_MSG : $OLD_NAME
        RESULT=4
    else
        echo Differences, content BUT SAME size: $DEP_MSG : $OLD_NAME
        RESULT=3
    fi
    if [ "x$VIEW" == "xview" ]; then
        LANG=C $DIFF $OLD_SYMBOLS $NEW_SYMBOLS
    fi
 else
    if [ $OLD_SIZE -ne $NEW_SIZE ]
    then
        echo Identical symbols BUT NEW size    : $DEP_MSG : $OLD_NAME
        RESULT=2
    else
        echo Identical symbols AND size, BUT not bytewise identical: $DEP_MSG : $OLD_NAME
        RESULT=1
    fi
 fi
 exit $RESULT

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common/bin/difflib.sh@c8d320b48626 (annotated)

common/bin/difflib.sh