aosp12/bionic/libdl/libdl_android.cpp

119 lines
4.8 KiB
C++

/*
* 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);
}
} // extern "C"