22fa3dde07
When a library is present in a namespace via the secondary_namespaces list (i.e. the executable, LD_PRELOAD, DF_1_GLOBAL, or android_create_namespace inheritance), then we want to search that library's symbols, but not the symbols of its dependencies. Otherwise, we want to search the dependencies to handle cross-NS dependency. Bug: http://b/148569846 Test: bionic unit tests Change-Id: If798d69de28ed5c0f1a155e4ff85c7e08934e531
37 lines
1.7 KiB
C++
37 lines
1.7 KiB
C++
/*
|
|
* Copyright (C) 2020 The Android Open Source Project
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
|
|
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
|
|
__attribute__((weak)) extern "C" void public_function();
|
|
__attribute__((weak)) extern "C" void internal_function();
|
|
|
|
extern "C" void app_function() {
|
|
printf("public_function is %s\n", public_function == nullptr ? "null" : "non-null");
|
|
printf("internal_function is %s\n", internal_function == nullptr ? "null" : "non-null");
|
|
}
|