Re: Removing link-time cross-module refs in contrib - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Removing link-time cross-module refs in contrib
Date
Msg-id 11071.1475523612@sss.pgh.pa.us
Whole thread Raw
In response to Re: Removing link-time cross-module refs in contrib  (Andres Freund <andres@anarazel.de>)
Responses Re: Removing link-time cross-module refs in contrib
List pgsql-hackers
Andres Freund <andres@anarazel.de> writes:
> On 2016-10-03 14:49:20 -0400, Tom Lane wrote:
>> ... ignoring unresolved symbols in shlibs is the default
>> on Linux, and while you can make it throw errors, that just leads to
>> errors for all the references into the core backend.  Not very helpful.
>> AFAICS, GNU ld lacks any equivalent to macOS' -bundle_loader switch,
>> which is what we'd need to make this usable.

> Hm. I wonder if it's actually possible to link against the main backend,
> when compiling as a position-independent-executable...

I tried that, didn't work.

>> A workable compromise for Linux might be to enable -Wl,-z,now which
>> changes unresolved symbol resolution from lazy to on-load.

> Hm, I think that's the default already no?

Oh, maybe, I was looking for compile switches.  Will test.
        regards, tom lane



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