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Re: ERROR: could not load library "...": Exec format error

From: Boszormenyi Zoltan <zb(at)cybertec(dot)at>
To: Korry Douglas <korry(dot)douglas(at)enterprisedb(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: ERROR: could not load library "...": Exec format error
Date: 2010-02-09 16:25:02
Message-ID: 4B718C5E.9070206@cybertec.at (view raw or flat)
Thread:
Lists: pgsql-generalpgsql-hackers
Korry Douglas írta:
>> I have the $SUBJECT problem loading my own
>> module in PostgreSQL. The server is HP-UX/ia64,
>> PostgeSQL 8.4.2 was compiled with HP CC.
>> pl/PgSQL can be loaded fine.
>>
>> ...:/usr/local/pgsql/pgsql-cc-8.4/lib# ldd odbclink.so
>>        libodbc.so.1 => /usr/local/pgsql/runtime/lib/libodbc.so.1
>>        libpthread.so.1 =>      /usr/lib/hpux64/libpthread.so.1
>>        libc.so.1 =>    /usr/lib/hpux64/libc.so.1
>>        libdl.so.1 =>   /usr/lib/hpux64/libdl.so.1
>>
>> "/usr/local/pgsql/runtime" is a link to "/usr/local/pgsql/pgsql-cc-8.4"
>>
>> ...:/usr/local/pgsql/pgsql-cc-8.4/lib# file plpgsql.so odbclink.so
>> plpgsql.so:     ELF-64 shared object file - IA64
>> odbclink.so:    ELF-64 shared object file - IA64
>>
>> The module compilation was done using "USE_PGXS=1 gmake".
>>
>> How can I solve this issue?
>
>
> IIRC, HP/UX doesn't like to dynamic-load shared libraries that use
> thread-local storage. Your shared library (odbclink.so) is linked
> against libpthread.so.1 so you may be running into that problem.  I
> would recommend running the HP/UX equivalent of strace to capture more
> information about the call to dlopen()  (or perhaps shl_load(),
> depending on which version of HP/UX you are using).

Yes, it seems you are right, I have read dlopen(3) in full on HP-UX,
this small detail is documented there. It seems I need to preload
the libraries: odbclink.so, libodbc.so.1 and all the needed libs from
the target ODBC driver... Thanks for the info.

Best regards,
Zoltán Böszörményi

>
>
>             -- Korry
>
>
> -----------------------------------------------------------------------
> Korry Douglas
> Senior Database Dude
> EnterpriseDB Corporation
> The Enterprise Postgres Company
>
> Phone: (804)241-4301
> Mobile: (620) EDB-NERD
>
>


-- 
Bible has answers for everything. Proof:
"But let your communication be, Yea, yea; Nay, nay: for whatsoever is more
than these cometh of evil." (Matthew 5:37) - basics of digital technology.
"May your kingdom come" - superficial description of plate tectonics

----------------------------------
Zoltán Böszörményi
Cybertec Schönig & Schönig GmbH
http://www.postgresql.at/


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