Re: RTLD_LAZY considered harmful (Re: pltlc and pltlcu problems)

Christopher Kings-Lynne <chriskl@familyhealth.com.au>

From: "Christopher Kings-Lynne" <chriskl@familyhealth.com.au>

To: "David Terrell" <dbt@meat.net>, "Tom Lane" <tgl@sss.pgh.pa.us>

Cc: "Brent Verner" <brent@rcfile.org>, "Murray Prior Hobbs" <murray@efone.com>, "Lamar Owen" <lamar.owen@wgcr.org>, <pgsql-hackers@postgresql.org>

Date: 2002-01-21T08:21:26Z

Lists: pgsql-hackers

> On Sun, Jan 20, 2002 at 01:40:17PM -0500, Tom Lane wrote:
> > What I would *like* to do is make the same change in all the
> > port/dynloader files that reference RTLD_LAZY:
> > 	src/backend/port/dynloader/openbsd.h
>
> I can't speak for other platforms but openbsd only has RTLD_LAZY.

FreeBSD supports both:

     RTLD_LAZY   Each external function reference is resolved when the func-
                 tion is first called.

     RTLD_NOW    All external function references are bound immediately by
                 dlopen().

     RTLD_LAZY is normally preferred, for reasons of efficiency.  However,
     RTLD_NOW is useful to ensure that any undefined symbols are discovered

Chris