New command line tool 'idmap'

Introduce a new tool 'idmap' to handle generation and verification of
idmap files. The tool is modelled on 'dexopt', and is intended to be
used similarly, notably by 'installd'.
See cmds/idmap/idmap.cpp for further documentation on 'idmap'.

Note: this commit is interdependent on a commit in project build/ to add
'idmap' to PRODUCT_PACKAGES.

Note: the changes to androidfw are only stubs. The actual implementation
will be provided in Runtime resource overlay, iteration 2.

Change-Id: I7131b74ece1e46c8a9c0a31d103e686aa07da2bb

1 files changed, 8 insertions, 0 deletions

diff --git a/include/androidfw/AssetManager.h b/include/androidfw/AssetManager.h
index a010957..e0c6183 100644
--- a/include/androidfw/AssetManager.h
+++ b/include/androidfw/AssetManager.h
@@ -69,6 +69,7 @@ struct ResTable_config;
  */
 class AssetManager : public AAssetManager {
 public:
+    static const char* RESOURCES_FILENAME;
     typedef enum CacheMode {
         CACHE_UNKNOWN = 0,
         CACHE_OFF,          // don't try to cache file locations
@@ -218,6 +219,13 @@ public:
      */
     void getLocales(Vector<String8>* locales) const;
 
+    /**
+     * Generate idmap data to translate resources IDs between a package and a
+     * corresponding overlay package.
+     */
+    bool createIdmap(const char* targetApkPath, const char* overlayApkPath,
+        uint32_t targetCrc, uint32_t overlayCrc, uint32_t** outData, uint32_t* outSize);
+
 private:
     struct asset_path
     {