| From: | "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au> |
|---|---|
| To: | "David Terrell" <dbt(at)meat(dot)net>, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | "Brent Verner" <brent(at)rcfile(dot)org>, "Murray Prior Hobbs" <murray(at)efone(dot)com>, "Lamar Owen" <lamar(dot)owen(at)wgcr(dot)org>, <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: RTLD_LAZY considered harmful (Re: pltlc and pltlcu problems) |
| Date: | 2002-01-21 08:21:26 |
| Message-ID: | GNELIHDDFBOCMGBFGEFOGEBPCBAA.chriskl@familyhealth.com.au |
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| Lists: | pgsql-hackers pgsql-sql |
> 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
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