Horton
Menu

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

Bruce Momjian <pgman@candle.pha.pa.us>

View thread
From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Peter Eisentraut <peter_e@gmx.net>
Cc: Christopher Kings-Lynne <chriskl@familyhealth.com.au>, David Terrell <dbt@meat.net>, Tom Lane <tgl@sss.pgh.pa.us>, Brent Verner <brent@rcfile.org>, Murray Prior Hobbs <murray@efone.com>, Lamar Owen <lamar.owen@wgcr.org>, pgsql-hackers@postgresql.org
Date: 2002-01-21T16:54:44Z
Lists: pgsql-hackers 
Peter Eisentraut wrote:
> Bruce Momjian writes:
> 
> > Interesting LAZY has better efficiency.  Seems we should just keep LAZY
> > as our default for future releases and tell people if they link to bad
> > object files, they should expect trouble.
> 
> In practice, we load object files only if we call the function, so symbol
> resolution happens either way briefly after loading.  RTLD_NOW includes
> some overhead because it checks symbols that we might not end up needing,
> but for the typical PostgreSQL extension module, that should really not
> matter.

OK, I was just throwing out the point in case it was significant.

-- 
  Bruce Momjian                        |  http://candle.pha.pa.us
  pgman@candle.pha.pa.us               |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026