<dlfcn.h>(0P)                                       POSIX Programmer's Manual                                      <dlfcn.h>(0P)



NAME
       dlfcn.h - dynamic linking

SYNOPSIS
       #include <dlfcn.h>

DESCRIPTION
       The <dlfcn.h> header shall define at least the following macros for use in the construction of a dlopen() mode argument:

       RTLD_LAZY
              Relocations are performed at an implementation-defined time.

       RTLD_NOW
              Relocations are performed when the object is loaded.

       RTLD_GLOBAL
              All symbols are available for relocation processing of other modules.

       RTLD_LOCAL
              All symbols are not made available for relocation processing by other modules.


       The following shall be declared as functions and may also be defined as macros. Function prototypes shall be provided.


              int    dlclose(void *);
              char  *dlerror(void);
              void  *dlopen(const char *, int);
              void  *dlsym(void *restrict, const char *restrict);

       The following sections are informative.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       The System Interfaces volume of IEEE Std 1003.1-2001, dlopen(), dlclose(), dlsym(), dlerror()

COPYRIGHT
       Portions  of  this  text are reprinted and reproduced in electronic form from IEEE Std 1003.1, 2003 Edition, Standard for
       Information Technology -- Portable Operating System Interface (POSIX), The Open Group Base Specifications Issue 6,  Copy-
       right (C) 2001-2003 by the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the event of any
       discrepancy between this version and the original IEEE and The Open Group Standard, the original IEEE and The Open  Group
       Standard   is   the   referee   document.   The   original   Standard   can   be   obtained  online  at  http://www.open-
       group.org/unix/online.html .



IEEE/The Open Group                                           2003                                                 <dlfcn.h>(0P)