DragonFly On-Line Manual Pages

DLFCN(3)              DragonFly Library Functions Manual              DLFCN(3)

NAME
     dlopen, fdlopen, dlclose, dlinfo, dladdr, dlsym, dlfunc, dlvsym,
     dl_iterate_phdr, dlerror -- programmatic interface to the dynamic linker

LIBRARY
     This function is not in a library.  It is included in every dynamically
     linked program automatically.

SYNOPSIS
     #include <dlfcn.h>

     void *
     dlopen(const char *name, int mode);

     void *
     fdlopen(int fd, int mode);

     int
     dlclose(void *handle);

     int
     dlinfo(void * restrict handle, int request, void * restrict p);

     int
     dladdr(const void * restrict addr, Dl_info * restrict info);

     void *
     dlsym(void * restrict handle, const char * restrict name);

     dlfunc_t
     dlfunc(void * restrict handle, const char * restrict name);

     void *
     dlvsym(void * restrict handle, const char * restrict name,
         const char * restrict version);

     char *
     dlerror(void);

     #include <link.h>

     int
     dl_iterate_phdr(int (*callback)(struct dl_phdr_info *, size_t, void *),
         void * data);

DESCRIPTION
     These functions provide an interface to the run-time linker
     ld-elf.so.2(1).  They allow new shared objects to be loaded into the
     process' address space under program control.

SEE ALSO
     ld(1), rtld(1), dladdr(3), dlclose(3), dlerror(3), dlfunc(3), dlinfo(3),
     dl_iterate_phdr(3), dlopen(3), dlsym(3), dlvsym(3), fdlopen(3), link(5)

HISTORY
     Some of the dl* functions first appeared in SunOS 4.

DragonFly 5.1                  February 22, 2018                 DragonFly 5.1