110 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
			
		
		
	
	
			110 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
| // Copyright 2014 The Chromium Authors. All rights reserved.
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| // Use of this source code is governed by a BSD-style license that can be
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| // found in the LICENSE file.
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| 
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| package org.chromium.base.library_loader;
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| 
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| public class NativeLibraries {
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|     /**
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|      * IMPORTANT NOTE: The variables defined here must _not_ be 'final'.
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|      *
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|      * The reason for this is very subtle:
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|      *
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|      * - This template is used to generate several distinct, but similar
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|      *   files used in different contexts:
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|      *
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|      *   o .../gen/templates/org/chromium/base/library_loader/NativeLibraries.java
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|      *
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|      *     This file is used to build base.jar, which is the library
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|      *     jar used by chromium projects. However, the
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|      *     corresponding NativeLibraries.class file will _not_ be part
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|      *     of the final base.jar.
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|      *
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|      *   o .../$PROJECT/native_libraries_java/NativeLibraries.java
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|      *
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|      *     This file is used to build an APK (e.g. $PROJECT
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|      *     could be 'content_shell_apk'). Its content will depend on
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|      *     this target's specific build configuration, and differ from
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|      *     the source file above.
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|      *
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|      * - During the final link, all .jar files are linked together into
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|      *   a single .dex file, and the second version of NativeLibraries.class
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|      *   will be put into the final output file, and used at runtime.
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|      *
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|      * - If the variables were defined as 'final', their value would be
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|      *   optimized out inside of 'base.jar', and could not be specialized
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|      *   for every chromium program. This, however, doesn't apply to arrays of
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|      *   strings, which can be defined as final.
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|      *
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|      * This exotic scheme is used to avoid injecting project-specific, or
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|      * even build-specific, values into the base layer. E.g. this is
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|      * how the component build is supported on Android without modifying
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|      * the sources of each and every Chromium-based target.
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|      */
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| 
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|     public static final int CPU_FAMILY_UNKNOWN = 0;
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|     public static final int CPU_FAMILY_ARM = 1;
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|     public static final int CPU_FAMILY_MIPS = 2;
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|     public static final int CPU_FAMILY_X86 = 3;
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| 
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| #if defined(ENABLE_CHROMIUM_LINKER_LIBRARY_IN_ZIP_FILE) && \
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|     !defined(ENABLE_CHROMIUM_LINKER)
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| #error "Must have ENABLE_CHROMIUM_LINKER to enable library in zip file"
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| #endif
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| 
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|     // Set to true to enable the use of the Chromium Linker.
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| #if defined(ENABLE_CHROMIUM_LINKER)
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|     public static boolean sUseLinker = true;
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| #else
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|     public static boolean sUseLinker = false;
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| #endif
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| 
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| #if defined(ENABLE_CHROMIUM_LINKER_LIBRARY_IN_ZIP_FILE)
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|     public static boolean sUseLibraryInZipFile = true;
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| #else
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|     public static boolean sUseLibraryInZipFile = false;
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| #endif
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| 
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| #if defined(ENABLE_CHROMIUM_LINKER_TESTS)
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|     public static boolean sEnableLinkerTests = true;
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| #else
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|     public static boolean sEnableLinkerTests = false;
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| #endif
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| 
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|     // This is the list of native libraries to be loaded (in the correct order)
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|     // by LibraryLoader.java.  The base java library is compiled with no
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|     // array defined, and then the build system creates a version of the file
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|     // with the real list of libraries required (which changes based upon which
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|     // .apk is being built).
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|     // TODO(cjhopman): This is public since it is referenced by NativeTestActivity.java
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|     // directly. The two ways of library loading should be refactored into one.
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|     public static final String[] LIBRARIES =
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| #if defined(NATIVE_LIBRARIES_LIST)
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|       NATIVE_LIBRARIES_LIST;
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| #else
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|       {};
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| #endif
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| 
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|     // This is the expected version of the 'main' native library, which is the one that
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|     // implements the initial set of base JNI functions including
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|     // base::android::nativeGetVersionName()
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|     static String sVersionNumber =
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| #if defined(NATIVE_LIBRARIES_VERSION_NUMBER)
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|       NATIVE_LIBRARIES_VERSION_NUMBER;
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| #else
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|       "";
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| #endif
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| 
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|     public static int sCpuFamily =
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| #if defined(ANDROID_APP_CPU_FAMILY_ARM)
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|         CPU_FAMILY_ARM;
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| #elif defined(ANDROID_APP_CPU_FAMILY_X86)
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|         CPU_FAMILY_X86;
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| #elif defined(ANDROID_APP_CPU_FAMILY_MIPS)
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|         CPU_FAMILY_MIPS;
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| #else
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|         CPU_FAMILY_UNKNOWN;
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| #endif
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| 
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| }
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