Re: Cygwin linking rules
От | Andrew Dunstan |
---|---|
Тема | Re: Cygwin linking rules |
Дата | |
Msg-id | 2392b7f2-331c-f324-ae62-79d70023b654@2ndQuadrant.com обсуждение исходный текст |
Ответ на | Re: Cygwin linking rules (Andrew Dunstan <andrew.dunstan@2ndquadrant.com>) |
Ответы |
Re: Cygwin linking rules
(Tom Lane <tgl@sss.pgh.pa.us>)
|
Список | pgsql-hackers |
On 09/29/2018 01:03 PM, Andrew Dunstan wrote: > > > On 09/29/2018 12:09 PM, Andrew Dunstan wrote: >> >> >> On 09/29/2018 11:35 AM, Tom Lane wrote: >>> Most of the buildfarm is now happy with the changes I made to have >>> libpq + ecpg get src/port and src/common files via libraries ... >>> but lorikeet isn't. It gets through the core regression tests fine >>> (so libpq, per se, works), but contrib/dblink fails: >>> >>> ! ERROR: could not establish connection >>> ! DETAIL: libpq is incorrectly linked to backend functions >>> >>> What this means is that libpq is calling the backend version of >>> src/common/link-canary.c rather than the frontend version. >>> Why would it do the right thing normally and the wrong thing in dblink? >>> >>> I can think of a few theories but I lack the ability to investigate: >>> >>> 1. Maybe the dblink.dll build is pulling in libpq.a rather than >>> establishing a reference to libpq.dll. If so, the wrong things would >>> happen because libpq.a won't contain the src/common/ files that >>> libpq needs. (It seems like libpq.a is an active hazard given >>> this. Why are we building it at all?) >>> >>> 2. Maybe we need a --version-script option or something equivalent >>> to get libpq.dll's references to be preferentially resolved internally >>> rather than to the backend. But this doesn't really explain why it >>> worked properly before. >>> >>> >> >> >> >> I will see if I can determine if 1) is the cause. I don't know >> enough, or in fact anything, about 2), so don;t know that I can help >> there without advice. >> >> > > > > It certainly looks like it's not linked to libpq.dll: > > Microsoft (R) COFF/PE Dumper Version 14.15.26726.0 > Copyright (C) Microsoft Corporation. All rights reserved. > > > Dump of file > \cygwin64\home\andrew\\bf64\root\HEAD\inst\lib\postgresql\dblink.dll > > File Type: DLL > > Image has the following dependencies: > > postgres.exe > cygcrypto-1.0.0.dll > cygwin1.dll > cygssl-1.0.0.dll > KERNEL32.dll > > > I'll build an earlier version to do a comparison just to make sure > we're seeing the right thing. > > > Hmm. Getting the same result from REL_10_STABLE. Not sure where to go from here. cheers andrew -- Andrew Dunstan https://www.2ndQuadrant.com PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
В списке pgsql-hackers по дате отправления: