Public bug reported:
Binary package hint: firebird2.1-classic
firebird-2.1 classic is compiled with -fno-stack-protector,
so any third-party UDF compiled with default gcc options are not loaded by
firebird at runtime.
and firebird said:
-function TANH is not defined
-module name or entrypoint could not be found
i think that
When i compile same UDF source with -fno-stack-protector, udf loads and
work perfectly.
How i guess that:
I wrote simple .c file:
int main()
{
return 0;
}
and run command:
root# gcc qwe.c rfunc
/usr/bin/ld: a.out: hidden symbol `__stack_chk_fail_local' in
/usr/lib/libc_nonshared.a(stack_chk_fail_local.oS) is referenced by DSO
/usr/bin/ld: final link failed: Nonrepresentable section on output
collect2: ld returned 1 exit status
Because earlier i reported about very BUGGY stak protector i decide to
off this feature in UDF makefile. and YES! now UDF worked !
r...@quadsrv:/usr/lib/firebird/2.1/UDF/tmp# lsb_release -rd
Description: Ubuntu 8.10
Release: 8.10
r...@quadsrv:/usr/lib/firebird/2.1/UDF/tmp# LANG=C apt-cache policy
firebird2.1-classic
firebird2.1-classic:
Installed: 2.1.0.17798-0.ds2-1
Candidate: 2.1.0.17798-0.ds2-1
Version table:
*** 2.1.0.17798-0.ds2-1 0
500 http://ru.archive.ubuntu.com intrepid/universe Packages
100 /var/lib/dpkg/status
** Affects: firebird2.1 (Ubuntu)
Importance: Undecided
Status: New
--
firebird 2.1 compiled without stack protector, so UDF open failed
https://bugs.launchpad.net/bugs/363694
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