stevehicks has asked for the wisdom of the Perl Monks concerning the following question:

Hi I have been trying for 2 days to install and use Net::Pcap, but regardless of what I try I get the following error : 
ld.so.1: perl-static: fatal: relocation error: file /app/orc/mdscripts
+/PerlModules/lib/auto/Net/Pcap/Pcap.so: symbol pcap_open_live: refere
+nced symbol not found
Killed

[download]
I am on a Solaris10 x86 machine : 
bash-3.00$ uname -a
SunOS enocln99 5.10 Generic_137112-07 i86pc i386 i86pc
bash-3.00$

[download]
using ActiveState Perl 5.10.0.1004 : 
bash-3.00$ perl -V
Set up gcc environment - 3.4.3 (csl-sol210-3_4-branch+sol_rpath)
Summary of my perl5 (revision 5 version 10 subversion 0) configuration
+:
  Platform:
    osname=solaris, osvers=2.10, archname=x86-solaris-thread-multi
    uname='sunos ginsu 5.10 generic_125101-10 i86pc i386 i86pc '
    config_args='-ders -Dcc=cc -Dusethreads -Duseithreads -Ud_sigsetjm
+p -Uinstallusrbinperl -Ulocincpth= -Uloclibpth= -Ud_strerror_r -Ud_si
+gnbit -Accflags=-DUSE_SITECUSTOMIZE -Duselargefiles -Accflags=-DPRIVL
+IB_LAST_IN_INC -Dprefix=/opt/ActivePerl-5.10 -Dprivlib=/opt/ActivePer
+l-5.10/lib -Darchlib=/opt/ActivePerl-5.10/lib -Dsiteprefix=/opt/Activ
+ePerl-5.10/site -Dsitelib=/opt/ActivePerl-5.10/site/lib -Dsitearch=/o
+pt/ActivePerl-5.10/site/lib -Dsed=/usr/bin/sed -Duseshrplib -Dcf_by=A
+ctiveState -Dcf_email=support@ActiveState.com'
    hint=recommended, useposix=true, d_sigaction=define
    useithreads=define, usemultiplicity=define
    useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=und
+ef
    use64bitint=undef, use64bitall=undef, uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='gcc', ccflags ='-D_REENTRANT -DUSE_SITECUSTOMIZE -DPRIVLIB_LAS
+T_IN_INC -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DPERL_USE_SAFE_P
+UTENV -fno-strict-aliasing -pipe',
    optimize='-O',
    cppflags='-D_REENTRANT -DUSE_SITECUSTOMIZE -DPRIVLIB_LAST_IN_INC -
+fno-strict-aliasing -pipe'
    ccversion='', gccversion='3.4.3 (csl-sol210-3_4-branch+sol_rpath)'
+, gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=1
+2
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t',
+ lseeksize=8
    alignbytes=4, prototype=define
  Linker and Libraries:
    ld='gcc', ldflags =' -L/usr/lib -L/usr/ccs/lib -L/opt/SUNWspro/pro
+d/lib -L/lib '
    libpth=/usr/lib /usr/ccs/lib /opt/SUNWspro/prod/lib /lib
    libs=-lsocket -lnsl -ldl -lm -lpthread -lc
    perllibs=-lsocket -lnsl -ldl -lm -lpthread -lc
    libc=, so=so, useshrplib=true, libperl=libperl.so
    gnulibc_version=''
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='  -R /op
+t/ActivePerl-5.10/lib/CORE'
    cccdlflags='-fPIC', lddlflags='-G -L/usr/lib -L/usr/ccs/lib -L/opt
+/SUNWspro/prod/lib -L/lib'


Characteristics of this binary (from libperl): 
  Compile-time options: MULTIPLICITY PERL_DONT_CREATE_GVSV
                        PERL_IMPLICIT_CONTEXT PERL_MALLOC_WRAP
                        PERL_USE_SAFE_PUTENV USE_ITHREADS USE_LARGE_FI
+LES
                        USE_PERLIO USE_REENTRANT_API USE_SITECUSTOMIZE
  Locally applied patches:
        ActivePerl Build 1004 [287188]
        33741 avoids segfaults invoking S_raise_signal() (on Linux)
        32809 Load 'loadable object' with non-default file extension
        32728 64-bit fix for Time::Local
  Built under solaris
  Compiled at Sep  3 2008 11:06:56
  %ENV:
    PERL5LIB="/app/orc/mdscripts/PerlModules/lib"
  @INC:
    /app/orc/mdscripts/PerlModules/lib
    /opt/ActivePerl-5.10/site/lib
    /opt/ActivePerl-5.10/lib
    .
bash-3.00$

[download]
I have installed the libpcap library from SunFreeware.com, which has both forms of the library : 
bash-3.00$ find /usr/local -name \*cap\*|egrep -v share
/usr/local/bin/captoinfo
/usr/local/bin/infotocap
/usr/local/bin/pcap-config
/usr/local/doc/ncurses/doc/html/ada/terminal_interface-curses-termcap_
+_adb.htm
/usr/local/doc/ncurses/doc/html/ada/terminal_interface-curses-termcap_
+_ads.htm
/usr/local/doc/ncurses/doc/html/man/captoinfo.1m.html
/usr/local/doc/ncurses/doc/html/man/curs_termcap.3x.html
/usr/local/doc/ncurses/doc/html/man/infotocap.1m.html
/usr/local/doc/libpcap
/usr/local/man/man1/captoinfo.1m
/usr/local/man/man1/infotocap.1m
/usr/local/man/man3/curs_termcap.3x
/usr/local/lib/libpcap.a
/usr/local/lib/libpcap.so
/usr/local/include/ncurses/termcap.h
/usr/local/include/pcap
/usr/local/include/pcap/pcap.h
/usr/local/include/pcap-bpf.h
/usr/local/include/pcap-namedb.h
/usr/local/include/pcap.h
bash-3.00$

[download]
Here's the compile of Net::Pcap(install steps not shown) : 
bash-3.00$ perl Makefile.PL PREFIX=~/mdscripts/PerlModules
Set up gcc environment - 3.4.3 (csl-sol210-3_4-branch+sol_rpath)
looking for -lpcap... yes
checking for pcap_lib_version() in -lpcap... no
        - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
You appear to have an old version of the pcap library. 

This module need a recent version of the pcap library in order to prov
+ide 
access to all its features. You can still compile it with your old pca
+p 
library but some functions won't be available, and trying to use them 
+in 
Perl programs will generate errors. Programs only using the old functi
+ons 
should perform as previously. If not, don't hesitate to fill a bug. 

You can get the latest sources of the pcap library at http://www.tcpdu
+mp.org/

If you install the pcap library using a system package, make sure to a
+lso 
install the corresponding -devel package, which contains the C headers
+ needed 
to compile this module. 
        - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
trying to detect actually available functions... ok
Checking if your kit is complete...
Looks good
Note (probably harmless): No library found for -lpcap
Writing Makefile for Net::Pcap
bash-3.00$ 
bash-3.00$ 
bash-3.00$ make
cp Pcap.pm blib/lib/Net/Pcap.pm
AutoSplitting blib/lib/Net/Pcap.pm (blib/lib/auto/Net/Pcap)
/opt/ActivePerl-5.10/bin/perl /opt/ActivePerl-5.10/lib/ExtUtils/xsubpp
+  -typemap /opt/ActivePerl-5.10/lib/ExtUtils/typemap -typemap typemap
+  Pcap.xs > Pcap.xsc && mv Pcap.xsc Pcap.c
gcc -c   -Wall -O   -DVERSION=\"0.14\" -DXS_VERSION=\"0.14\" -fPIC "-I
+/opt/ActivePerl-5.10/lib/CORE"  -DHAVE_BLANK -DHAVE_PCAP_ACTIVATE -DH
+AVE_PCAP_BREAKLOOP -DHAVE_PCAP_CAN_SET_RFMON -DHAVE_PCAP_COMPILE_NOPC
+AP -DHAVE_PCAP_CREATE -DHAVE_PCAP_DATALINK_EXT -DHAVE_PCAP_DATALINK_N
+AME_TO_VAL -DHAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION -DHAVE_PCAP_DATALI
+NK_VAL_TO_NAME -DHAVE_PCAP_DUMP_FILE -DHAVE_PCAP_DUMP_FLUSH -DHAVE_PC
+AP_DUMP_FOPEN -DHAVE_PCAP_DUMP_FTELL -DHAVE_PCAP_FINDALLDEVS -DHAVE_P
+CAP_FOPEN_OFFLINE -DHAVE_PCAP_FREEALLDEVS -DHAVE_PCAP_FREE_DATALINKS 
+-DHAVE_PCAP_GETNONBLOCK -DHAVE_PCAP_GET_SELECTABLE_FD -DHAVE_PCAP_INJ
+ECT -DHAVE_PCAP_LIB_VERSION -DHAVE_PCAP_LIST_DATALINKS -DHAVE_PCAP_NE
+XT_EX -DHAVE_PCAP_OFFLINE_FILTER -DHAVE_PCAP_OPEN_DEAD -DHAVE_PCAP_SE
+NDPACKET -DHAVE_PCAP_SETDIRECTION -DHAVE_PCAP_SETNONBLOCK -DHAVE_PCAP
+_SET_BUFFER_SIZE -DHAVE_PCAP_SET_DATALINK -DHAVE_PCAP_SET_PROMISC -DH
+AVE_PCAP_SET_RFMON -DHAVE_PCAP_SET_SNAPLEN -DHAVE_PCAP_SET_TIMEOUT -D
+HAVE_PCAP_STATUSTOSTR Pcap.c
In file included from Pcap.xs:43:
stubs.inc:322:2: warning: #warning "the function pcap_createsrcstr() i
+s not available"
stubs.inc:337:2: warning: #warning "the function pcap_parsesrcstr() is
+ not available"
stubs.inc:352:2: warning: #warning "the function pcap_open() is not av
+ailable"
stubs.inc:373:2: warning: #warning "the function pcap_setbuff() is not
+ available"
stubs.inc:388:2: warning: #warning "the function pcap_setuserbuffer() 
+is not available"
stubs.inc:403:2: warning: #warning "the function pcap_setmode() is not
+ available"
stubs.inc:418:2: warning: #warning "the function pcap_setmintocopy() i
+s not available"
stubs.inc:433:2: warning: #warning "the function pcap_sendqueue_alloc(
+) is not available"
stubs.inc:455:2: warning: #warning "the function pcap_sendqueue_destro
+y() is not available"
stubs.inc:469:2: warning: #warning "the function pcap_sendqueue_queue(
+) is not available"
stubs.inc:484:2: warning: #warning "the function pcap_sendqueue_transm
+it() is not available"
stubs.inc:499:2: warning: #warning "the function pcap_event() is not a
+vailable"
stubs.inc:514:2: warning: #warning "the function pcap_setsampling() is
+ not available"
Pcap.c: In function `XS_Net__Pcap_strerror':
Pcap.c:1574: warning: assignment discards qualifiers from pointer targ
+et type
Running Mkbootstrap for Net::Pcap ()
chmod 644 Pcap.bs
rm -f blib/arch/auto/Net/Pcap/Pcap.so
gcc  -G -L/usr/local/lib -L/usr/lib -L/usr/ccs/lib -L/opt/SUNWspro/pro
+d/lib -L/lib Pcap.o  -o blib/arch/auto/Net/Pcap/Pcap.so   \
        \
  
chmod 755 blib/arch/auto/Net/Pcap/Pcap.so
cp Pcap.bs blib/arch/auto/Net/Pcap/Pcap.bs
chmod 644 blib/arch/auto/Net/Pcap/Pcap.bs
cp bin/pcapinfo blib/script/pcapinfo
/opt/ActivePerl-5.10/bin/perl "-MExtUtils::MY" -e "MY->fixin(shift)" b
+lib/script/pcapinfo
Set up gcc environment - 3.4.3 (csl-sol210-3_4-branch+sol_rpath)
Manifying blib/man1/pcapinfo.1
Manifying blib/man3/Net::Pcap.3
bash-3.00$ echo $?   
0
bash-3.00$ 
bash-3.00$

[download]
So everything looks like it's gone ok, but I get the error previously mentioned : 
ld.so.1: perl-static: fatal: relocation error: file /app/orc/mdscripts
+/PerlModules/lib/auto/Net/Pcap/Pcap.so: symbol pcap_open_live: refere
+nced symbol not found
Killed

[download]
I'm at my wit's end. I have tried : But whatever I do it doesn't work. Any ideas ??

Replies are listed 'Best First'.
Re: Net::Pcap + Solaris10 x86 : runtime error madness
by jettero (Monsignor) on May 27, 2009 at 12:40 UTC
    It seems to be compiling using the /usr/local/lib version. But I think the bootloader is picking up the older version (or a version otherwise without the pcap_open_live symbol). See if you can change your lib load order to pick up the /usr/local/lib (presumably the version you compiled yourself) first.

    That, or see if you can get Net::Pcap to compile statically. I had some luck with this while working with disagreeable libs in win32: 

        perl Makefile.PL LINKTYPE=static    # recommended

    [download]

    (Quoted from ExtUtils::MakeMaker.)

    UPDATE/response: maybe, maybe not. Suppose there's shared versions of the lib hanging around. It's better to make sure /usr/local/lib is at the top of the libpath and to use LINKTYPE=static to make sure you're pulling in a .a instead of a .so

    -Paul

[reply]
[d/l]
      You only need to compile libpcap statically
[reply]
Re: Net::Pcap + Solaris10 x86 : runtime error madness
by almut (Canon) on May 27, 2009 at 15:34 UTC 
    gcc  -G -L/usr/local/lib -L/usr/lib -L/usr/ccs/lib -L/opt/SUNWspro/pro
+d/lib -L/lib Pcap.o  -o blib/arch/auto/Net/Pcap/Pcap.so   \
        \

    [download]

    This shows that Pcap.so hasn't actually been linked against libpcap (no -lpcap on that command line, for whatever reason...).

    In case you don't really want to solve the underlying problem with the older version apparently being found, no proper Makefile being written etc., but would rather just want to get it working this time for this build attempt, you could try to manually issue the proper link command (from the directory where Pcap.o lives): 

    gcc -G Pcap.o -o blib/arch/auto/Net/Pcap/Pcap.so /usr/local/lib/libpca
+p.a

    [download]

    (and then run make test; make install)

[reply]
[d/l]
[select]
      I did the standard build steps for Net::Pcap and then issued this command : 
      gcc  -L/usr/lib -L/usr/ccs/lib -L/opt/SUNWspro/prod/lib -L/lib -L/app/
+orc/mdscripts/Binaries/lib -G Pcap.o  -o blib/arch/auto/Net/Pcap/Pcap
+.so /app/orc/mdscripts/Binaries/lib/libpcap.a

      [download]
      then I copied the resultant shared library into place and it works a dream. Thankyou very much indeed, you guys are the BEST !!
[reply]
[d/l]

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