libdl.c revision 22d629211d72adaf46f3fc48f59540f8e5798b1e 
1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <dlfcn.h>
18/* These are stubs for functions that are actually defined
19 * in the dynamic linker (dlfcn.c), and hijacked at runtime.
20 */
21void *dlopen(const char *filename, int flag) { return 0; }
22const char *dlerror(void) { return 0; }
23void *dlsym(void *handle, const char *symbol) { return 0; }
24int dladdr(const void *addr, Dl_info *info) { return 0; }
25int dlclose(void *handle) { return 0; }
26
27#if defined(__arm__)
28
29void *dl_unwind_find_exidx(void *pc, int *pcount) { return 0; }
30
31#elif defined(__i386__) || defined(__mips__)
32
33/* we munge the cb definition so we don't have to include any headers here.
34 * It won't affect anything since these are just symbols anyway */
35int dl_iterate_phdr(int (*cb)(void *info, void *size, void *data), void *data) { return 0; }
36
37#else
38#error Unsupported architecture. Only mips, arm and x86 are supported.
39#endif
40