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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
package org.chromium.base.library_loader;
import org.chromium.base.annotations.SuppressFBWarnings;
@SuppressFBWarnings
public class NativeLibraries {
/**
* IMPORTANT NOTE: The variables defined here must _not_ be 'final'.
*
* The reason for this is very subtle:
*
* - This template is used to generate several distinct, but similar
* files used in different contexts:
*
* o .../gen/templates/org/chromium/base/library_loader/NativeLibraries.java
*
* This file is used to build base.jar, which is the library
* jar used by chromium projects. However, the
* corresponding NativeLibraries.class file will _not_ be part
* of the final base.jar.
*
* o .../$PROJECT/native_libraries_java/NativeLibraries.java
*
* This file is used to build an APK (e.g. $PROJECT
* could be 'content_shell_apk'). Its content will depend on
* this target's specific build configuration, and differ from
* the source file above.
*
* - During the final link, all .jar files are linked together into
* a single .dex file, and the second version of NativeLibraries.class
* will be put into the final output file, and used at runtime.
*
* - If the variables were defined as 'final', their value would be
* optimized out inside of 'base.jar', and could not be specialized
* for every chromium program. This, however, doesn't apply to arrays of
* strings, which can be defined as final.
*
* This exotic scheme is used to avoid injecting project-specific, or
* even build-specific, values into the base layer. E.g. this is
* how the component build is supported on Android without modifying
* the sources of each and every Chromium-based target.
*/
#if defined(ENABLE_CHROMIUM_LINKER_LIBRARY_IN_ZIP_FILE) && \
!defined(ENABLE_CHROMIUM_LINKER)
#error "Must have ENABLE_CHROMIUM_LINKER to enable library in zip file"
#endif
// Set to true to enable the use of the Chromium Linker.
#if defined(ENABLE_CHROMIUM_LINKER)
public static boolean sUseLinker = true;
#else
public static boolean sUseLinker = false;
#endif
#if defined(ENABLE_CHROMIUM_LINKER_LIBRARY_IN_ZIP_FILE)
public static boolean sUseLibraryInZipFile = true;
#else
public static boolean sUseLibraryInZipFile = false;
#endif
#if defined(ENABLE_CHROMIUM_LINKER_TESTS)
public static boolean sEnableLinkerTests = true;
#else
public static boolean sEnableLinkerTests = false;
#endif
// This is the list of native libraries to be loaded (in the correct order)
// by LibraryLoader.java. The base java library is compiled with no
// array defined, and then the build system creates a version of the file
// with the real list of libraries required (which changes based upon which
// .apk is being built).
// TODO(cjhopman): This is public since it is referenced by NativeTestActivity.java
// directly. The two ways of library loading should be refactored into one.
public static final String[] LIBRARIES =
#if defined(NATIVE_LIBRARIES_LIST)
NATIVE_LIBRARIES_LIST;
#else
{};
#endif
// This is the expected version of the 'main' native library, which is the one that
// implements the initial set of base JNI functions including
// base::android::nativeGetVersionName()
static String sVersionNumber =
#if defined(NATIVE_LIBRARIES_VERSION_NUMBER)
NATIVE_LIBRARIES_VERSION_NUMBER;
#else
"";
#endif
}
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