src/backend/port/dynloader/unixware.h

   1 /*
   2  * $PostgreSQL$
   3  *
   4  *-------------------------------------------------------------------------
   5  *
   6  * unixware.h
   7  *        port-specific prototypes for Intel x86/UNIXWARE 7
   8  *
   9  *
  10  * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group
  11  * Portions Copyright (c) 1994, Regents of the University of California
  12  *
  13  * unixware.h,v 1.2 1995/03/17 06:40:18 andrew Exp
  14  *
  15  *-------------------------------------------------------------------------
  16   */
  17 #ifndef PORT_PROTOS_H
  18 #define PORT_PROTOS_H
  19
  20 #include <dlfcn.h>
  21 #include "utils/dynamic_loader.h"
  22
  23 /*
  24  * Dynamic Loader on Intel x86/Intel SVR4.
  25  *
  26  * this dynamic loader uses the system dynamic loading interface for shared
  27  * libraries (ie. dlopen/dlsym/dlclose). The user must specify a shared
  28  * library as the file to be dynamically loaded.
  29  */
  30
  31 /*
  32  * In some older systems, the RTLD_NOW flag isn't defined and the mode
  33  * argument to dlopen must always be 1.  The RTLD_GLOBAL flag is wanted
  34  * if available, but it doesn't exist everywhere.
  35  * If it doesn't exist, set it to 0 so it has no effect.
  36  */
  37 #ifndef RTLD_NOW
  38 #define RTLD_NOW 1
  39 #endif
  40 #ifndef RTLD_GLOBAL
  41 #define RTLD_GLOBAL 0
  42 #endif
  43
  44 #define pg_dlopen(f)    dlopen((f), RTLD_NOW | RTLD_GLOBAL)
  45 #define pg_dlsym                dlsym
  46 #define pg_dlclose              dlclose
  47 #define pg_dlerror              dlerror
  48
  49 #endif   /* PORT_PROTOS_H */