DLFCN.H(7) Miscellaneous Information Manual DLFCN.H(7)

dlfcn.h — dynamic linking


#include <dlfcn.h>

The <dlfcn.h> header shall define at least the following macros for use in the construction of a dlopen(3) argument:

Relocations are performed at an implementation-defined time.
Relocations are performed when the object is loaded.
All symbols are available for relocation processing of other modules.
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);

None.

None.

None.

The System Interfaces volume of IEEE Std 1003.1-2001 (“POSIX.1”), dlopen(3), dlclose(3), dlsym(3), dlerror(3)

First released in Issue 5.

The keyword is added to the prototype for dlsym(3).

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December 6, 2001 posix.fail