2010-05-03 11:08:36     Problem linking AgentX and net-snmp trap

2010-05-03 11:08:36     Problem linking AgentX and net-snmp trap

Lorenzo Mariani (ITALY)

Message: 89094   

Hi everyone,

I have some problems with AgentX  (compile but do not link) and problems with net-snmp trap (the same), I'm compiling them with FLAT file type (I will try to compile with FDPIC file type as soon), i'm using bf536 uc with uClinux-dist-2009R1.1-RC4 version

I hope you can help me

Thanks in advance!

here is the "problematic code" (net-snmp)

        snmp_varlist_add_variable(&notification_vars,

                                      objid_snmptrap, 9,

                                      ASN_OBJECT_ID,

                                      (u_char *) notification_oid,

                                      11 * sizeof(oid));

            snmp_varlist_add_variable(&notification_vars,

                                      bdg1_oid, 11,

                                      ASN_OCTET_STR,

                                      (u_char *)&bdg1Vect,

                                      109*sizeof(unsigned char));

            send_trap_vars(-1,-1,notification_vars);

            snmp_free_varbind(notification_vars);

here is the output of eclipse linking

make all

Building target: tvg

Invoking: GCC C Linker

/opt/uClinux/bfin-uclinux/bin/bfin-uclinux-gcc -Wl,-elf2flt -L/home/lorenzo/blackfin/uClinux-dist/user/net-snmp/build/agent/.libs -L/home/marcoge/blackfin/uClinux-dist/user/net-snmp/build/agent/helpers/.libs -L/home/lorenzo/blackfin/uClinux-dist-2009R1.1-RC4/user/net-snmp/build/snmplib/.libs -o"tvg"  ./badges.o ./key.o ./lcdDisplay.o ./lcdMenu.o ./main.o ./pps.o ./snmp.o ./uart1.o ./util.o   -lm -lnetsnmpmibs -lnetsnmpagent -lnetsnmphelpers -lnetsnmp -lpthread

/home/lorenzo/blackfin/uClinux-dist-2009R1.1-RC4/user/net-snmp/build/snmplib/.libs/libnetsnmp.a(system.o): In function `netsnmp_daemonize':

../../net-snmp-5.2.1/snmplib/system.c:178: warning: fork: this function is not implemented on no-mmu systems

/home/lorenzo/blackfin/uClinux-dist/user/net-snmp/build/agent/.libs/libnetsnmpagent.a(snmp_vars.o): In function `init_agent':

../agent/mibgroup/agent_module_inits.h:2: undefined reference to `_should_init'

../agent/mibgroup/agent_module_inits.h:3: undefined reference to `_should_init'

../agent/mibgroup/agent_module_inits.h:4: undefined reference to `_should_init'

../agent/mibgroup/agent_module_inits.h:5: undefined reference to `_should_init'

/home/lorenzo/blackfin/uClinux-dist/user/net-snmp/build/agent/.libs/libnetsnmpagent.a(client.o): In function `agentx_open_session':

../../net-snmp-5.2.1/agent/mibgroup/agentx/client.c:139: undefined reference to `_version_sysoid'

../../net-snmp-5.2.1/agent/mibgroup/agentx/client.c:139: undefined reference to `_version_sysoid'

/home/lorenzo/blackfin/uClinux-dist/user/net-snmp/build/agent/.libs/libnetsnmpagent.a(master_admin.o): In function `remove_agent_caps_list':

../../net-snmp-5.2.1/agent/mibgroup/agentx/master_admin.c:397: undefined reference to `_unregister_sysORTable_sess'

/home/lorenzo/blackfin/uClinux-dist/user/net-snmp/build/agent/.libs/libnetsnmpagent.a(master_admin.o): In function `add_agent_caps_list':

../../net-snmp-5.2.1/agent/mibgroup/agentx/master_admin.c:382: undefined reference to `_register_sysORTable_sess'

/home/lorenzo/blackfin/uClinux-dist/user/net-snmp/build/agent/.libs/libnetsnmpagent.a(master_admin.o): In function `close_agentx_session':

../../net-snmp-5.2.1/agent/mibgroup/agentx/master_admin.c:165: undefined reference to `_unregister_sysORTable_by_session'

../../net-snmp-5.2.1/agent/mibgroup/agentx/master_admin.c:137: undefined reference to `_unregister_sysORTable_by_session'

collect2: ld returned 1 exit status

make: *** [tvg] Errore 1

And for agentx problem:

snmpd -H result:

    master                   specify 'agentx' for AgentX support

    agentxsocket             AgentX bind address

    agentxperms              AgentX socket permissions: socket_perms [directory_perms [username|userid[groupname|groupid]]]

    agentxRetries            AgentX Retries

    agentxTimeout            AgentX Timeout (seconds)

    sysdescr                 description

    syslocation              location

    syscontact               contact-name

    sysname                  node-name

    sysservices              NUMBER

    sysobjectid              OID

    engineID                 string

    engineIDType             num

    engineIDNic              string

  In agentx.conf and agentx.local.conf:

    agentxsocket             AgentX bind address

    agentxperms              AgentX socket permissions: socket_perms [directory_perms [username|userid[groupname|groupid]]]

    agentxRetries            AgentX Retries

    agentxTimeout            AgentX Timeout (seconds)

this is my configuration of the config/.config file

CONFIG_USER_NETSNMP_SNMPD=y

CONFIG_USER_NETSNMP_SNMPD_MINI=y

# CONFIG_USER_NETSNMP_APPS is not set

CONFIG_USER_NETSNMP_BUILDSTATIC=y

# CONFIG_USER_NETSNMP_MANUALS is not set

# CONFIG_USER_NETSNMP_SCRIPTS is not set

# CONFIG_USER_NETSNMP_MIBS is not set

# CONFIG_USER_NETSNMP_NOV1 is not set

# CONFIG_USER_NETSNMP_NOV2C is not set

# CONFIG_USER_NETSNMP_IPV6 is not set

# CONFIG_USER_NETSNMP_NOTRANSPORTS is not set

# CONFIG_USER_NETSNMP_OPENSSL is not set

# CONFIG_USER_NETSNMP_OVRDEFAULTS is not set

CONFIG_USER_NETSNMP_ADDMIBS=y

CONFIG_USER_NETSNMP_ADDITIONALMIBS="my_mib agentx"

TranslateQuoteReplyEditDelete

2010-05-03 14:43:48     Re: Problem linking AgentX and net-snmp trap

Mike Frysinger (UNITED STATES)

Message: 89096   

builds fine for me, but your output doesnt seem to make sense.  there is no "tvg" target which means that is something you defined so it's probably a bug in something you wrote.

FLAT statically links which means library link order is important.

QuoteReplyEditDelete

2010-05-04 02:43:39     Re: Problem linking AgentX and net-snmp trap

Lorenzo Mariani (ITALY)

Message: 89100   

tvg is just the artifact name, so eclipse creates an executable file named tvg

I see about FLAT, so is this order ( -lm -lnetsnmpmibs -lnetsnmpagent -lnetsnmphelpers -lnetsnmp -lpthread ) correct?

Many thanks for your help!