| /* |
| * 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 <android/dlext.h> |
| |
| // These functions are exported by the loader |
| // TODO(dimitry): replace these with reference to libc.so |
| |
| extern "C" { |
| |
| __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_set_application_target_sdk_version(int target); |
| |
| __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*)); |
| |
| __attribute__((__weak__, visibility("default"))) |
| struct android_namespace_t* __loader_android_get_exported_namespace(const char* name); |
| |
| // Proxy calls to bionic loader |
| __attribute__((__weak__)) |
| void android_get_LD_LIBRARY_PATH(char* buffer, size_t buffer_size) { |
| __loader_android_get_LD_LIBRARY_PATH(buffer, buffer_size); |
| } |
| |
| __attribute__((__weak__)) |
| void android_update_LD_LIBRARY_PATH(const char* ld_library_path) { |
| __loader_android_update_LD_LIBRARY_PATH(ld_library_path); |
| } |
| |
| __attribute__((__weak__)) |
| void android_set_application_target_sdk_version(int target) { |
| __loader_android_set_application_target_sdk_version(target); |
| } |
| |
| __attribute__((__weak__)) |
| 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); |
| } |
| |
| __attribute__((__weak__)) |
| 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); |
| } |
| |
| __attribute__((__weak__)) |
| 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); |
| } |
| |
| __attribute__((__weak__)) |
| void android_dlwarning(void* obj, void (*f)(void*, const char*)) { |
| __loader_android_dlwarning(obj, f); |
| } |
| |
| __attribute__((__weak__)) |
| struct android_namespace_t* android_get_exported_namespace(const char* name) { |
| return __loader_android_get_exported_namespace(name); |
| } |
| |
| #if defined(__arm__) |
| // An arm32 unwinding table has an R_ARM_NONE relocation to |
| // __aeabi_unwind_cpp_pr0. This shared library will never invoke the unwinder, |
| // so it doesn't actually need the routine. Define a dummy version here, |
| // because the real version calls libc functions (e.g. memcpy, abort), which |
| // would create a dependency cycle with libc.so. |
| __attribute__((visibility("hidden"))) |
| void __aeabi_unwind_cpp_pr0() { |
| __builtin_trap(); |
| } |
| #endif |
| |
| } // extern "C" |