2 #include <dlfcn/dlfcn.h>
4 /* Internally used flag. */
5 #define __RTLD_DLOPEN 0x80000000
7 /* Now define the internal interfaces. */
8 extern void *__dlvsym (void *__handle
, __const
char *__name
,
9 __const
char *__version
);
11 extern void *__libc_dlopen (__const
char *__name
);
12 extern void *__libc_dlsym (void *__map
, __const
char *__name
);
13 extern int __libc_dlclose (void *__map
);
15 /* Locate shared object containing the given address. */
16 extern int _dl_addr (const void *address
, Dl_info
*info
)
19 /* Open the shared object NAME, relocate it, and run its initializer if it
20 hasn't already been run. MODE is as for `dlopen' (see <dlfcn.h>). If
21 the object is already opened, returns its existing map. */
22 extern void *_dl_open (const char *name
, int mode
, const void *caller
)
25 /* Close an object previously opened by _dl_open. */
26 extern void _dl_close (void *map
)
29 /* Look up NAME in shared object HANDLE (which may be RTLD_DEFAULT or
30 RTLD_NEXT). WHO is the calling function, for RTLD_NEXT. Returns
31 the symbol value, which may be NULL. */
32 extern void *_dl_sym (void *handle
, const char *name
, void *who
)
35 /* Look up version VERSION of symbol NAME in shared object HANDLE
36 (which may be RTLD_DEFAULT or RTLD_NEXT). WHO is the calling
37 function, for RTLD_NEXT. Returns the symbol value, which may be
39 extern void *_dl_vsym (void *handle
, const char *name
, const char *version
,
43 /* Call OPERATE, catching errors from `dl_signal_error'. If there is no
44 error, *ERRSTRING is set to null. If there is an error, *ERRSTRING is
45 set to a string constructed from the strings passed to _dl_signal_error,
46 and the error code passed is the return value and *OBJNAME is set to
47 the object name which experienced the problems. ERRSTRING if nonzero
48 points to a malloc'ed string which the caller has to free after use.
49 ARGS is passed as argument to OPERATE. */
50 extern int _dl_catch_error (const char **objname
, const char **errstring
,
51 void (*operate
) (void *),
55 /* Helper function for <dlfcn.h> functions. Runs the OPERATE function via
56 _dl_catch_error. Returns zero for success, nonzero for failure; and
57 arranges for `dlerror' to return the error details.
58 ARGS is passed as argument to OPERATE. */
59 extern int _dlerror_run (void (*operate
) (void *), void *args
)