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/*
* 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 "linker.h"
#include "linker_translate_path.h"
#include "linker_utils.h"
#if defined(__LP64__)
static const char* const kSystemLibDir = "/system/lib64";
static const char* const kI18nApexLibDir = "/apex/com.android.i18n/lib64";
#else
static const char* const kSystemLibDir = "/system/lib";
static const char* const kI18nApexLibDir = "/apex/com.android.i18n/lib";
#endif
// Workaround for dlopen(/system/lib(64)/<soname>) when .so is in /apex. http://b/121248172
/**
* Translate /system path to /apex path if needed
* The workaround should work only when targetSdkVersion < Q.
*
* param out_name_to_apex pointing to /apex path
* return true if translation is needed
*/
bool translateSystemPathToApexPath(const char* name, std::string* out_name_to_apex) {
static const char* const kSystemToArtApexLibs[] = {
"libicuuc.so",
"libicui18n.so",
};
// New mapping for new apex should be added below
// Nothing to do if target sdk version is Q or above
if (get_application_target_sdk_version() >= 29) {
return false;
}
// If the path isn't /system/lib, there's nothing to do.
if (name == nullptr || dirname(name) != kSystemLibDir) {
return false;
}
const char* base_name = basename(name);
for (const char* soname : kSystemToArtApexLibs) {
if (strcmp(base_name, soname) == 0) {
*out_name_to_apex = std::string(kI18nApexLibDir) + "/" + base_name;
return true;
}
}
return false;
}
// End Workaround for dlopen(/system/lib/<soname>) when .so is in /apex.
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