dlfcn.h(0p) — Linux manual page

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

PROLOG

       This manual page is part of the POSIX Programmer's Manual.  The
       Linux implementation of this interface may differ (consult the
       corresponding Linux manual page for details of Linux behavior),
       or the interface may not be implemented on Linux.

NAME

       dlfcn.h — dynamic linking

SYNOPSIS

       #include <dlfcn.h>

DESCRIPTION

       The <dlfcn.h> header shall define at least the following symbolic
       constants 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 POSIX.1‐2017, dlclose(3p),
       dlerror(3p), dlopen(3p), dlsym(3p)

COPYRIGHT

       Portions of this text are reprinted and reproduced in electronic
       form from IEEE Std 1003.1-2017, Standard for Information
       Technology -- Portable Operating System Interface (POSIX), The
       Open Group Base Specifications Issue 7, 2018 Edition, Copyright
       (C) 2018 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.opengroup.org/unix/online.html .

       Any typographical or formatting errors that appear in this page
       are most likely to have been introduced during the conversion of
       the source files to man page format. To report such errors, see
       https://www.kernel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group               2017                       dlfcn.h(0P)

Pages that refer to this page: dlclose(3p), dlerror(3p), dlopen(3p), dlsym(3p)

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