From mboxrd@z Thu Jan  1 00:00:00 1970
From: Roland McGrath <roland@gnu.ai.mit.edu>
To: hjl@nynexst.com
Cc: robf@www.willows.com, raeburn@cygnus.com, gas2@cygnus.com, ian@cygnus.com, eric@aib.com
Subject: Re: ld, ld.so and -symbolic
Date: Sun, 18 Jun 1995 10:16:00 -0000
Message-id: <199506181716.NAA13804@churchy.gnu.ai.mit.edu>
References: <9506172001.AA19867@titanic.nynexst.com>
X-SW-Source: 1995/msg00110.html

In ELF there is a simple feature that if a DT_SYMBOLIC element appears in a
shared object's dynamic section, then when resolving references within that
shared object, the dynamic linker will give that object's own definitions
first precedence, followed by the executable and other loaded shared
objects (the normal order being the executable followed by all loaded
shared objects).  I believe GNU ld already has a -symbolic switch that
creates the DT_SYMBOLIC element when building a shared object (though I
could be mistaken).