run app under different glibc environment

blas · 04-07-2006, 06:38 AM

Hi

I need to execute a program which uses Linux Threads under FC5, as documented here https://www.redhat.com/archives/fedo.../msg00217.html the new GLIBC 2.4.4-4 doesn't have Linux Threads, FC5 replaced it with the new thread library implementation called "NPTL".
As a result, applications which try to use the old threading methods will experience
"failure to communicate"

Goggling around I found that here is a feature of glibc that allows running an app under a completely different glibc. This feature is used when testing a new glibc. Invoke ld-linux directly and specify "--library-path list

f:directories" (which overrides LD_LIBRARY_PATH for this execve only) before the rest of the command line:

/path/to/old/glibc/ld-linux.so.2 --library-path /path/to/old/glibc:$LD_LIBRARY_PATH app

I have a copy of glibc 2.3.2 under /opt/glibc_antiguo

When I try: /opt/glibc_antiguo/lib/ld-linux.so.2 --library-path /opt/glibc_antiguo/lib /home/ora10g/client10gR2/bin/oemapp console

This is the result:
/home/ora10g/client10gR2/bin/oemapp: error while loading shared libraries: /home/ora10g/client10gR2/bin/oemapp: invalid ELF header

Of course the app is not loaded...

Does anyone know the solution or another workaround to execute an app which needs Linux Threads under FC5?

Thanks in advance
Regards

Lenard · 04-07-2006, 06:59 AM

Install the compat-gcc and related rpm packages, for example;

http://download.fedora.redhat.com/pu...5.fc5.i386.rpm

yum install compat-gcc

blas · 04-07-2006, 07:32 AM

installed compat-gcc but same error

thanks

win32sux · 04-07-2006, 07:41 AM

what does ldd show??

Code:

ldd /home/ora10g/client10gR2/bin/oemapp

blas · 04-07-2006, 07:43 AM

it shows: not a dynamic executable

win32sux · 04-07-2006, 07:48 AM

okay... so is it like a shell script?? which executable(s) is the shell script executing?? how are those executables linked (check with ldd)?? can we see the script??

blas · 04-07-2006, 08:02 AM

yes, it's a shell script. It executes a java app with "java" command

output for: ldd /usr/bin/java

linux-gate.so.1 => (0x00414000)
libc.so.6 => /lib/libc.so.6 (0x00432000)
/lib/ld-linux.so.2 (0x00415000)

script contents: /home/ora10g/bin/oemapp

Code:

#!/bin/sh
#
# Copyright (c) 1998, 2004, Oracle. All rights reserved.
#
# PRODUCT
#       Oracle Enterprise Manager, Version 9.2.0.0.0 Production
#
# FILENAME
#   oemapp
#
# DESCRIPTION
#   This script is used to launch Applications of Oracle
#   Enterprise Manager, Version 9
#

ORACLE_HOME=/home/ora10g/client10gR2
export ORACLE_HOME

ADMIN_WRL=/etc/ORACLE/WALLETS/CA
export ADMIN_WRL

unset JAVA_HOME

#For fixing problem launching netscape in console on Solaris
if [ "$LANG" = "C" ]
then
    unset LANG
fi

if [ "$1" = "trace" -o "$1" = "TRACE" -o "$1" = "debug" -o "$1" = "DEBUG" ]
then
    TRACE="-DTRACING.LEVEL=2 -DTRACING.ENABLED=true"
    shift
fi


CLASSROOT=$ORACLE_HOME/classes
JLIBROOT=$ORACLE_HOME/jlib
NETJLIBROOT=$ORACLE_HOME/network/jlib
OEMCLASSES=$JLIBROOT/oembase-10_1_0.jar:$JLIBROOT/oemtools-10_1_0.jar:$JLIBROOT/oemlt-10_1_0.jar
BALICLASSES=$JLIBROOT/swingall-1_1_1.jar:$JLIBROOT/ewtcompat-3_3_15.jar:$JLIBROOT/ewt3.jar:$JLIBROOT/ewt3-nls.jar:$JLIBROOT/share.jar:/home/ora10g/client10gR2/sysman/jlib/master.jar:/home/ora10g/client10gR2/sysman/jlib/master_zh_CN.jar:/home/ora10g/client10gR2/sysman/jlib/master_fr.jar:/home/ora10g/client10gR2/sysman/jlib/master_de.jar:/home/ora10g/client10gR2/sysman/jlib/master_it.jar:/home/ora10g/client10gR2/sysman/jlib/master_ja.jar:/home/ora10g/client10gR2/sysman/jlib/master_ko.jar:/home/ora10g/client10gR2/sysman/jlib/master_pt_BR.jar:/home/ora10g/client10gR2/sysman/jlib/master_es.jar
HELPCLASSES=$JLIBROOT/help4.jar:$JLIBROOT/help4-nls.jar:$JLIBROOT/oracle_ice5.jar
DBUICLASSES=$JLIBROOT/dbui2.jar:$JLIBROOT/dbui2-nls.jar
KODIAKCLASSES=$JLIBROOT/kodiak.jar
JDBCCLASSES=$ORACLE_HOME/jdbc/lib/ojdbc14.jar:$ORACLE_HOME/jdbc/lib/nls_charset12.zip:$ORACLE_HOME/jlib/orai18n.jar
SECURITYCLASSES=$JLIBROOT/javax-ssl-1_1.jar:$JLIBROOT/jssl-1_1.jar
OSDNETCLASSES=$JLIBROOT/netcfg.jar:$JLIBROOT/o3logon.jar:$JLIBROOT/verifier14.jar
OSDPKICLASSES=$NETJLIBROOT/ewm-1_1.jar:$JLIBROOT/ojpse_2_1_5.jar
#OAMCLASSES=
NETMGRCLASSES=$NETJLIBROOT/netmgrm.jar:$NETJLIBROOT/netmgr.jar:$ORACLE_HOME/network/tools
XMLCLASSES=$ORACLE_HOME/lib/xmlparserv2.jar
NETCHARTCLASSES=$ORACLE_HOME/sysman/jlib/netchart360.jar
OLAPCLASSES=$JLIBROOT/cvd.zip:$JLIBROOT/jndi.jar:$JLIBROOT/jewt4.jar:$JLIBROOT/jewt4-nls.jar
MISCCLASSES=$ORACLE_HOME/assistants/jlib/assistantsCommon.jar:$JLIBROOT/jle2.jar:$JLIBROOT/jle2-nls.jar:$JLIBROOT/ldap.jar:$ORACLE_HOME/owm/jlib/owm-3_0.jar:$JLIBROOT/ldapjclnt10.jar
QSMACLASSES=$ORACLE_HOME/rdbms/jlib/qsma.jar

CLASSPATHADD=$BALICLASSES:$HELPCLASSES:$DBUICLASSES:$JDBCCLASSES:$CLASSROOT:$OEMCLASSES:$KODIAKCLASSES:$SECURITYCLASSES:$OSDNETCLASSES:$OSDPKICLASSES:$NETMGRCLASSES:$XMLCLASSES:$NETCHARTCLASSES:$OLAPCLASSES:$MISCCLASSES:$QSMACLASSES

# hook for classpath additions
if [ "$ORACLE_OEM_CLASSPATH" != "" ]
then
    CLASSPATHADD=$ORACLE_OEM_CLASSPATH:$CLASSPATHADD
fi


unset CLASSPATH # jre won't find core api's if CLASSPATH is set.
LD_LIBRARY_PATH=$ORACLE_HOME/lib32:$ORACLE_HOME/lib:$ORACLE_HOME/network/lib:$LD_LIBRARY_PATH
export LD_LIBRARY_PATH

# Shared library path for HP
SHLIB_PATH=$ORACLE_HOME/lib32:$ORACLE_HOME/network/lib32:$ORACLE_HOME/lib:$ORACLE_HOME/network/lib:$SHLIB_PATH
export SHLIB_PATH

# Shared library path for AIX
if [ "`uname`" = "AIX" ]
then
    LIBPATH=$ORACLE_HOME/lib32:$ORACLE_HOME/lib:$ORB_HOME/lib:$ORACLE_HOME/network/lib:$LIBPATH
    export LIBPATH
    JRENATIVEOPTION=
    export JRENATIVEOPTION
else
    JRENATIVEOPTION=-native
    export JRENATIVEOPTION
fi


PATH=/home/ora10g/client10gR2/jdk/jre//bin:$PATH
export PATH

if [ "$ORACLE_OEM_JAVAMX" = "" ]
then
    ORACLE_OEM_JAVAMX=-mx128m
fi

if [ "$ORACLE_OEM_JAVARUNTIME" = "" ]
then
#    JRE="jre $JRENATIVEOPTION -nojit $ORACLE_OEM_JAVAMX $TRACE"
# jre is not supported in jdk 1.3
    JRE="java $ORACLE_OEM_JAVAMX $TRACE"
    CLASSPATH_QUAL=cp
else
    JRE="$ORACLE_OEM_JAVARUNTIME/bin/java $JRENATIVEOPTION $ORACLE_OEM_JAVAMX $TRACE"
    CLASSPATH_QUAL=classpath
    CLASSPATHADD=$CLASSPATHADD:$ORACLE_OEM_JAVARUNTIME/lib/classes.zip
fi


# Increase the number of file descriptors
if [ `uname` != "HP-UX" ]
then
    if [ `uname` != "OSF1" ]
    then
        ulimit -S -n `ulimit -H -n` > /dev/null
    else
        ulimit -S -n 4096 > /dev/null
    fi
fi


ME=`basename $0`
USAGE="Usage: $ME <application_name>"

APPLICATION=$1


if [ "$1" = "ocmcli" ]
then
    exec $JRE -DADMIN_WRL=$ADMIN_WRL -DORACLE_HOME=$ORACLE_HOME -DORBdisableLocator=true -Djdbc.backward_compatible_to_816=true $JREOPTIONS_STRING -$CLASSPATH_QUAL $CLASSPATHADD oracle.sysman.vtx.vtxOemApp.OemApp $APPLICATION "$2" "$3" "$4" "$5" "$6" "$7" "$8" "$9"
else
    exec $JRE -DADMIN_WRL=$ADMIN_WRL -DORACLE_HOME=$ORACLE_HOME -DORBdisableLocator=true -Djdbc.backward_compatible_to_816=true $JREOPTIONS_STRING -$CLASSPATH_QUAL $CLASSPATHADD oracle.sysman.vtx.vtxOemApp.OemApp $APPLICATION $2 $3 $4 $5 $6 $7 $8 $9
fi

blas · 05-02-2006, 06:32 AM

can anyone please help me with this issue?