Show OS-specific error when entrypont is not found in dynamic library [CORE6069]

[firebird-automations]

Submitted by: @AlexPeshkoff

Displaying that information to user will help to diagnose and fix various problems related to use of dynamically loaded modules.

Commits: 08e6b18

====== Test Details ======

Have no idea how to implement this test using provided in FB 4.0 UDR example library:

create or alter procedure gen_rows (start_n integer not null, end_n integer not null ) returns ( n integer not null )
external name 'udrcpp_example!give_me_rows'
engine udr
;
commit;

-- returns :

Statement failed, SQLSTATE = HY000
Entry point not found

-- for all versions of FB 4.0.x (i.e. there is no difference in output before and after this ticket was fixed)

[firebird-automations]

Modified by: @AlexPeshkoff

description: Displaying that information to user will help to diagnose and fix various problems related to use of various dynamically loaded modules. => Displaying that information to user will help to diagnose and fix various problems related to use of dynamically loaded modules.

[firebird-automations]

Modified by: @AlexPeshkoff

Version: 4.0 Beta 1 [ 10750 ] =>

[firebird-automations]

Modified by: @AlexPeshkoff

assignee: Alexander Peshkov [ alexpeshkoff ]

[firebird-automations]

Modified by: @AlexPeshkoff

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: 4.0 Beta 2 [ 10888 ]

[firebird-automations]

Modified by: @pavel-zotov

status: Resolved [ 5 ] => Resolved [ 5 ]

QA Status: No test => Deferred

Test Details: Have no idea how to implement this test using provided in FB 4.0 UDR example library:

create or alter procedure gen_rows (start_n integer not null, end_n integer not null ) returns ( n integer not null )
external name 'udrcpp_example!give_me_rows'
engine udr
;
commit;

-- returns :

Statement failed, SQLSTATE = HY000
Entry point not found

-- for all versions of FB 4.0.x (i.e. there is no difference in output before and after this ticket was fixed)

[firebird-automations]

Modified by: @pavel-zotov

status: Resolved [ 5 ] => Closed [ 6 ]