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Use RTLD_NOW, not RTLD_LAZY, as binding mode for dlopen() on all platforms.

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This restores the Linux behavior to what it was in PG 7.0 and 7.1, and
causes other platforms to agree.  (Other well-tested platforms like HPUX
were doing it this way already.)  Per pghackers discussion over the past
month or so.
This commit is contained in:
Tom Lane
2002-02-12 23:41:25 +00:00
parent baa0bb97b0
commit fa046b6a92
17 changed files with 266 additions and 79 deletions
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20
src/backend/port/dynloader/linux.h
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@@ -1,12 +1,13 @@
/*-------------------------------------------------------------------------
*
* Dynamic loader interface for Linux
* linux.h
* Port-specific prototypes for Linux
*
*
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: linux.h,v 1.16 2001/11/05 17:46:27 momjian Exp $
* $Id: linux.h,v 1.17 2002/02/12 23:40:29 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -35,7 +36,20 @@ do { \
#else /* HAVE_DLOPEN */
#define pg_dlopen(f) dlopen((f), RTLD_LAZY | RTLD_GLOBAL)
/*
* In some older systems, the RTLD_NOW flag isn't defined and the mode
* argument to dlopen must always be 1. The RTLD_GLOBAL flag is wanted
* if available, but it doesn't exist everywhere.
* If it doesn't exist, set it to 0 so it has no effect.
*/
#ifndef RTLD_NOW
#define RTLD_NOW 1
#endif
#ifndef RTLD_GLOBAL
#define RTLD_GLOBAL 0
#endif
#define pg_dlopen(f) dlopen((f), RTLD_NOW | RTLD_GLOBAL)
#define pg_dlsym dlsym
#define pg_dlclose dlclose
#define pg_dlerror dlerror