| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <dlfcn.h> |
| #include <link.h> |
| #include <stdlib.h> |
| #include <stdbool.h> |
| #include <android/dlext.h> |
| |
| // These functions are exported by the loader |
| // TODO(dimitry): replace these with reference to libc.so |
| |
| __attribute__((__weak__, visibility("default"))) |
| void* __loader_dlopen(const char* filename, int flags, const void* caller_addr); |
| |
| __attribute__((__weak__, visibility("default"))) |
| void* __loader_dlerror(); |
| |
| __attribute__((__weak__, visibility("default"))) |
| void* __loader_dlsym(void* handle, const char* symbol, const void* caller_addr); |
| |
| __attribute__((__weak__, visibility("default"))) |
| void* __loader_dlvsym(void* handle, |
| const char* symbol, |
| const char* version, |
| const void* caller_addr); |
| |
| __attribute__((__weak__, visibility("default"))) |
| int __loader_dladdr(const void* addr, Dl_info* info); |
| |
| __attribute__((__weak__, visibility("default"))) |
| int __loader_dlclose(void* handle); |
| |
| #if defined(__arm__) |
| __attribute__((__weak__, visibility("default"))) |
| _Unwind_Ptr __loader_dl_unwind_find_exidx(_Unwind_Ptr pc, int* pcount); |
| #endif |
| |
| __attribute__((__weak__, visibility("default"))) |
| int __loader_dl_iterate_phdr(int (*cb)(struct dl_phdr_info* info, size_t size, void* data), |
| void* data); |
| |
| __attribute__((__weak__, visibility("default"))) |
| void __loader_android_get_LD_LIBRARY_PATH(char* buffer, size_t buffer_size); |
| |
| __attribute__((__weak__, visibility("default"))) |
| void __loader_android_update_LD_LIBRARY_PATH(const char* ld_library_path); |
| |
| __attribute__((__weak__, visibility("default"))) |
| void* __loader_android_dlopen_ext(const char* filename, |
| int flag, |
| const android_dlextinfo* extinfo, |
| const void* caller_addr); |
| |
| __attribute__((__weak__, visibility("default"))) |
| void __loader_android_set_application_target_sdk_version(uint32_t target); |
| |
| __attribute__((__weak__, visibility("default"))) |
| uint32_t __loader_android_get_application_target_sdk_version(); |
| |
| __attribute__((__weak__, visibility("default"))) |
| bool __loader_android_init_anonymous_namespace(const char* shared_libs_sonames, |
| const char* library_search_path); |
| |
| __attribute__((__weak__, visibility("default"))) |
| struct android_namespace_t* __loader_android_create_namespace( |
| const char* name, |
| const char* ld_library_path, |
| const char* default_library_path, |
| uint64_t type, |
| const char* permitted_when_isolated_path, |
| struct android_namespace_t* parent, |
| const void* caller_addr); |
| |
| __attribute__((__weak__, visibility("default"))) |
| bool __loader_android_link_namespaces( |
| struct android_namespace_t* namespace_from, |
| struct android_namespace_t* namespace_to, |
| const char* shared_libs_sonames); |
| |
| __attribute__((__weak__, visibility("default"))) |
| void __loader_android_dlwarning(void* obj, void (*f)(void*, const char*)); |
| |
| // Proxy calls to bionic loader |
| void* dlopen(const char* filename, int flag) { |
| const void* caller_addr = __builtin_return_address(0); |
| return __loader_dlopen(filename, flag, caller_addr); |
| } |
| |
| char* dlerror() { |
| return __loader_dlerror(); |
| } |
| |
| void* dlsym(void* handle, const char* symbol) { |
| const void* caller_addr = __builtin_return_address(0); |
| return __loader_dlsym(handle, symbol, caller_addr); |
| } |
| |
| void* dlvsym(void* handle, const char* symbol, const char* version) { |
| const void* caller_addr = __builtin_return_address(0); |
| return __loader_dlvsym(handle, symbol, version, caller_addr); |
| } |
| |
| int dladdr(const void* addr, Dl_info* info) { |
| return __loader_dladdr(addr, info); |
| } |
| |
| int dlclose(void* handle) { |
| return __loader_dlclose(handle); |
| } |
| |
| #if defined(__arm__) |
| _Unwind_Ptr dl_unwind_find_exidx(_Unwind_Ptr pc, int* pcount) { |
| return __loader_dl_unwind_find_exidx(pc, pcount); |
| } |
| #endif |
| |
| int dl_iterate_phdr(int (*cb)(struct dl_phdr_info* info, size_t size, void* data), void* data) { |
| return __loader_dl_iterate_phdr(cb, data); |
| } |
| |
| void android_get_LD_LIBRARY_PATH(char* buffer, size_t buffer_size) { |
| __loader_android_get_LD_LIBRARY_PATH(buffer, buffer_size); |
| } |
| |
| void android_update_LD_LIBRARY_PATH(const char* ld_library_path) { |
| __loader_android_update_LD_LIBRARY_PATH(ld_library_path); |
| } |
| |
| void* android_dlopen_ext(const char* filename, int flag, const android_dlextinfo* extinfo) { |
| const void* caller_addr = __builtin_return_address(0); |
| return __loader_android_dlopen_ext(filename, flag, extinfo, caller_addr); |
| } |
| |
| void android_set_application_target_sdk_version(uint32_t target) { |
| __loader_android_set_application_target_sdk_version(target); |
| } |
| uint32_t android_get_application_target_sdk_version() { |
| return __loader_android_get_application_target_sdk_version(); |
| } |
| |
| bool android_init_anonymous_namespace(const char* shared_libs_sonames, |
| const char* library_search_path) { |
| return __loader_android_init_anonymous_namespace(shared_libs_sonames, library_search_path); |
| } |
| |
| struct android_namespace_t* android_create_namespace(const char* name, |
| const char* ld_library_path, |
| const char* default_library_path, |
| uint64_t type, |
| const char* permitted_when_isolated_path, |
| struct android_namespace_t* parent) { |
| const void* caller_addr = __builtin_return_address(0); |
| return __loader_android_create_namespace(name, |
| ld_library_path, |
| default_library_path, |
| type, |
| permitted_when_isolated_path, |
| parent, |
| caller_addr); |
| } |
| |
| bool android_link_namespaces(struct android_namespace_t* namespace_from, |
| struct android_namespace_t* namespace_to, |
| const char* shared_libs_sonames) { |
| return __loader_android_link_namespaces(namespace_from, namespace_to, shared_libs_sonames); |
| } |
| |
| void android_dlwarning(void* obj, void (*f)(void*, const char*)) { |
| __loader_android_dlwarning(obj, f); |
| } |