platform_bionic/linker/linker_sdk_versions.cpp

/*
 * Copyright (C) 2015 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 <atomic>

#include <android/api-level.h>
#include <android/fdsan.h>

#include "private/bionic_globals.h"

#include "linker.h"

static std::atomic<int> g_target_sdk_version(__ANDROID_API__);

void set_application_target_sdk_version(int target) {
  // translate current sdk_version to platform sdk_version
  if (target == 0) {
    target = __ANDROID_API__;
  }
  g_target_sdk_version = target;

  if (target < 30) {
    android_fdsan_set_error_level_from_property(ANDROID_FDSAN_ERROR_LEVEL_WARN_ONCE);
  }
  if (__libc_shared_globals()->set_target_sdk_version_hook) {
    __libc_shared_globals()->set_target_sdk_version_hook(target);
  }
}

int get_application_target_sdk_version() {
  return g_target_sdk_version;
}