1 /* Load a shared object at run time.
2 Copyright (C) 1995-2017 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
26 #if !defined SHARED && IS_IN (libdl)
29 dlmopen (Lmid_t nsid
, const char *file
, int mode
)
31 return __dlmopen (nsid
, file
, mode
, RETURN_ADDRESS (0));
33 static_link_warning (dlmopen
)
41 /* The arguments for dlopen_doit. */
44 /* The return value of dlopen_doit. */
46 /* Address of the caller. */
51 dlmopen_doit (void *a
)
53 struct dlmopen_args
*args
= (struct dlmopen_args
*) a
;
55 /* Non-shared code has no support for multiple namespaces. */
56 if (args
->nsid
!= LM_ID_BASE
)
59 /* If trying to open the link map for the main executable the namespace
60 must be the main one. */
61 if (args
->file
== NULL
)
63 _dl_signal_error (EINVAL
, NULL
, NULL
, N_("invalid namespace"));
65 /* It makes no sense to use RTLD_GLOBAL when loading a DSO into
66 a namespace other than the base namespace. */
67 if (__glibc_unlikely (args
->mode
& RTLD_GLOBAL
))
68 _dl_signal_error (EINVAL
, NULL
, NULL
, N_("invalid mode"));
71 args
->new = GLRO(dl_open
) (args
->file
?: "", args
->mode
| __RTLD_DLOPEN
,
73 args
->nsid
, __dlfcn_argc
, __dlfcn_argv
,
79 __dlmopen (Lmid_t nsid
, const char *file
, int mode DL_CALLER_DECL
)
82 if (__glibc_unlikely (_dlfcn_hook
!= NULL
))
83 return _dlfcn_hook
->dlmopen (nsid
, file
, mode
, RETURN_ADDRESS (0));
86 struct dlmopen_args args
;
90 args
.caller
= DL_CALLER
;
93 return _dlerror_run (dlmopen_doit
, &args
) ? NULL
: args
.new;
95 if (_dlerror_run (dlmopen_doit
, &args
))
98 __libc_register_dl_open_hook ((struct link_map
*) args
.new);
99 __libc_register_dlfcn_hook ((struct link_map
*) args
.new);
105 strong_alias (__dlmopen
, dlmopen
)