2 #include <dlfcn/dlfcn.h>
3 #include <link.h> /* For ElfW. */
5 /* Internally used flag. */
6 #define __RTLD_DLOPEN 0x80000000
7 #define __RTLD_SPROF 0x40000000
8 #define __RTLD_OPENEXEC 0x20000000
10 /* Now define the internal interfaces. */
11 extern void *__dlvsym (void *__handle, __const char *__name,
12 __const char *__version);
14 #define __libc_dlopen(name) __libc_dlopen_mode (name, RTLD_LAZY)
15 extern void *__libc_dlopen_mode (__const char *__name, int __mode);
16 extern void *__libc_dlsym (void *__map, __const char *__name);
17 extern int __libc_dlclose (void *__map);
18 libc_hidden_proto (__libc_dlopen_mode)
19 libc_hidden_proto (__libc_dlsym)
20 libc_hidden_proto (__libc_dlclose)
22 /* Locate shared object containing the given address. */
24 extern int _dl_addr (const void *address, Dl_info *info,
25 struct link_map **mapp, const ElfW(Sym) **symbolp)
27 libc_hidden_proto (_dl_addr)
30 /* Open the shared object NAME, relocate it, and run its initializer if it
31 hasn't already been run. MODE is as for `dlopen' (see <dlfcn.h>). If
32 the object is already opened, returns its existing map. */
33 extern void *_dl_open (const char *name, int mode, const void *caller)
35 libc_hidden_proto (_dl_open)
37 /* Close an object previously opened by _dl_open. */
38 extern void _dl_close (void *map)
40 libc_hidden_proto (_dl_close)
42 /* Look up NAME in shared object HANDLE (which may be RTLD_DEFAULT or
43 RTLD_NEXT). WHO is the calling function, for RTLD_NEXT. Returns
44 the symbol value, which may be NULL. */
45 extern void *_dl_sym (void *handle, const char *name, void *who)
48 /* Look up version VERSION of symbol NAME in shared object HANDLE
49 (which may be RTLD_DEFAULT or RTLD_NEXT). WHO is the calling
50 function, for RTLD_NEXT. Returns the symbol value, which may be
52 extern void *_dl_vsym (void *handle, const char *name, const char *version,
56 /* Call OPERATE, catching errors from `dl_signal_error'. If there is no
57 error, *ERRSTRING is set to null. If there is an error, *ERRSTRING is
58 set to a string constructed from the strings passed to _dl_signal_error,
59 and the error code passed is the return value and *OBJNAME is set to
60 the object name which experienced the problems. ERRSTRING if nonzero
61 points to a malloc'ed string which the caller has to free after use.
62 ARGS is passed as argument to OPERATE. */
63 extern int _dl_catch_error (const char **objname, const char **errstring,
64 void (*operate) (void *),
68 /* Helper function for <dlfcn.h> functions. Runs the OPERATE function via
69 _dl_catch_error. Returns zero for success, nonzero for failure; and
70 arranges for `dlerror' to return the error details.
71 ARGS is passed as argument to OPERATE. */
72 extern int _dlerror_run (void (*operate) (void *), void *args)