John Polstra 926ea445fe Revamp the symbol lookup algorithm to cope better with objects ... loaded separately by dlopen that have global symbols with identical names. Viewing each dlopened object as a DAG which is linked by its DT_NEEDED entries in the dynamic table, the search order is as follows: * If the referencing object was linked with -Bsymbolic, search it internally. * Search all dlopened DAGs containing the referencing object. * Search all objects loaded at program start up. * Search all objects which were dlopened() using the RTLD_GLOBAL flag (which is now supported too). The search terminates as soon as a strong definition is found. Lacking that, the first weak definition is used. These rules match those of Solaris, as best I could determine them from its vague manual pages and the results of experiments I performed. PR: misc/12438		1999-08-30 01:48:19 +00:00
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alpha	Revamp the symbol lookup algorithm to cope better with objects	1999-08-30 01:48:19 +00:00
amd64	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
i386	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
debug.c	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
debug.h	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
Makefile	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
malloc.c	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
map_object.c	Revamp the symbol lookup algorithm to cope better with objects	1999-08-30 01:48:19 +00:00
rtld.1	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
rtld.c	Revamp the symbol lookup algorithm to cope better with objects	1999-08-30 01:48:19 +00:00
rtld.h	Revamp the symbol lookup algorithm to cope better with objects	1999-08-30 01:48:19 +00:00
xmalloc.c	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00