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authorTom Lane <tgl@sss.pgh.pa.us>2002-02-12 23:41:25 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2002-02-12 23:41:25 +0000
commitfa046b6a92431a91f91a981bb2995e7091552477 (patch)
tree8048a4ce16e41b2d344ed468457d55e3b9989e5f /src/backend/port/dynloader/unixware.h
parentbaa0bb97b0a6f40993a8e340b55b14c9317f60a1 (diff)
downloadpostgresql-fa046b6a92431a91f91a981bb2995e7091552477.tar.gz
postgresql-fa046b6a92431a91f91a981bb2995e7091552477.zip
Use RTLD_NOW, not RTLD_LAZY, as binding mode for dlopen() on all platforms.
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.
Diffstat (limited to 'src/backend/port/dynloader/unixware.h')
-rw-r--r--src/backend/port/dynloader/unixware.h20
1 files changed, 16 insertions, 4 deletions
diff --git a/src/backend/port/dynloader/unixware.h b/src/backend/port/dynloader/unixware.h
index 691273fdbdc..2edea13cf87 100644
--- a/src/backend/port/dynloader/unixware.h
+++ b/src/backend/port/dynloader/unixware.h
@@ -17,16 +17,28 @@
#include <dlfcn.h>
#include "utils/dynamic_loader.h"
- /* dynloader.c */
/*
* Dynamic Loader on Intel x86/Intel SVR4.
*
* this dynamic loader uses the system dynamic loading interface for shared
* libraries (ie. dlopen/dlsym/dlclose). The user must specify a shared
* library as the file to be dynamically loaded.
- *
- */
-#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