The Open Group Base Specifications Issue 6
IEEE Std 1003.1, 2004 Edition
Copyright © 2001-2004 The IEEE and The Open Group, All Rights reserved.
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NAME

dlfcn.h - dynamic linking

SYNOPSIS

[XSI] [Option Start] #include <dlfcn.h> [Option End]

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()

CHANGE HISTORY

First released in Issue 5.

Issue 6

The restrict keyword is added to the prototype for dlsym().

End of informative text.
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