diff --git a/Android.mk b/Android.mk
index c12f74a..9bfbab5 100644
--- a/Android.mk
+++ b/Android.mk
@@ -680,6 +680,7 @@
 	bouncycastle \
 	okhttp \
 	ext \
+	icu4j \
 	framework \
 	telephony-common \
 	voip-common
diff --git a/cmds/bootanimation/Android.mk b/cmds/bootanimation/Android.mk
index 2ee586f..7c8842c 100644
--- a/cmds/bootanimation/Android.mk
+++ b/cmds/bootanimation/Android.mk
@@ -27,6 +27,8 @@
 
 LOCAL_MODULE:= bootanimation
 
+LOCAL_INIT_RC := bootanim.rc
+
 ifdef TARGET_32_BIT_SURFACEFLINGER
 LOCAL_32_BIT_ONLY := true
 endif
diff --git a/cmds/bootanimation/bootanim.rc b/cmds/bootanimation/bootanim.rc
new file mode 100644
index 0000000..ee0d0b8
--- /dev/null
+++ b/cmds/bootanimation/bootanim.rc
@@ -0,0 +1,6 @@
+service bootanim /system/bin/bootanimation
+    class core
+    user graphics
+    group graphics audio
+    disabled
+    oneshot
diff --git a/core/java/android/content/pm/ApplicationInfo.java b/core/java/android/content/pm/ApplicationInfo.java
index 3b6c9bd..9b1a490 100644
--- a/core/java/android/content/pm/ApplicationInfo.java
+++ b/core/java/android/content/pm/ApplicationInfo.java
@@ -492,12 +492,14 @@
 
     /**
      * String retrieved from the seinfo tag found in selinux policy. This value
-     * is useful in setting an SELinux security context on the process as well
-     * as its data directory.
+     * can be overridden with a value set through the mac_permissions.xml policy
+     * construct. This value is useful in setting an SELinux security context on
+     * the process as well as its data directory. The String default is being used
+     * here to represent a catchall label when no policy matches.
      *
      * {@hide}
      */
-    public String seinfo;
+    public String seinfo = "default";
 
     /**
      * Paths to all shared libraries this application is linked against.  This
diff --git a/core/java/android/os/RecoverySystem.java b/core/java/android/os/RecoverySystem.java
index 52b10be..2a2ad26 100644
--- a/core/java/android/os/RecoverySystem.java
+++ b/core/java/android/os/RecoverySystem.java
@@ -68,7 +68,7 @@
     /** Send progress to listeners no more often than this (in ms). */
     private static final long PUBLISH_PROGRESS_INTERVAL_MS = 500;
 
-    /** Used to communicate with recovery.  See bootable/recovery/recovery.c. */
+    /** Used to communicate with recovery.  See bootable/recovery/recovery.cpp. */
     private static File RECOVERY_DIR = new File("/cache/recovery");
     private static File COMMAND_FILE = new File(RECOVERY_DIR, "command");
     private static File UNCRYPT_FILE = new File(RECOVERY_DIR, "uncrypt_file");
@@ -506,18 +506,32 @@
         String[] names = RECOVERY_DIR.list();
         for (int i = 0; names != null && i < names.length; i++) {
             if (names[i].startsWith(LAST_PREFIX)) continue;
-            File f = new File(RECOVERY_DIR, names[i]);
-            if (!f.delete()) {
-                Log.e(TAG, "Can't delete: " + f);
-            } else {
-                Log.i(TAG, "Deleted: " + f);
-            }
+            recursiveDelete(new File(RECOVERY_DIR, names[i]));
         }
 
         return log;
     }
 
     /**
+     * Internally, delete a given file or directory recursively.
+     */
+    private static void recursiveDelete(File name) {
+        if (name.isDirectory()) {
+            String[] files = name.list();
+            for (int i = 0; files != null && i < files.length; i++) {
+                File f = new File(name, files[i]);
+                recursiveDelete(f);
+            }
+        }
+
+        if (!name.delete()) {
+            Log.e(TAG, "Can't delete: " + name);
+        } else {
+            Log.i(TAG, "Deleted: " + name);
+        }
+    }
+
+    /**
      * Internally, recovery treats each line of the command file as a separate
      * argv, so we only need to protect against newlines and nulls.
      */
diff --git a/core/jni/com_android_internal_os_Zygote.cpp b/core/jni/com_android_internal_os_Zygote.cpp
index 2bfeadb..adb19be 100644
--- a/core/jni/com_android_internal_os_Zygote.cpp
+++ b/core/jni/com_android_internal_os_Zygote.cpp
@@ -356,8 +356,8 @@
     return;
   }
   jsize count = env->GetArrayLength(fdsToClose);
-  jint *ar = env->GetIntArrayElements(fdsToClose, 0);
-  if (!ar) {
+  ScopedIntArrayRO ar(env, fdsToClose);
+  if (ar.get() == NULL) {
       ALOGE("Bad fd array");
       RuntimeAbort(env);
   }
diff --git a/docs/html/guide/topics/renderscript/compute.jd b/docs/html/guide/topics/renderscript/compute.jd
index 2e7ce56..b6a6cd7 100644
--- a/docs/html/guide/topics/renderscript/compute.jd
+++ b/docs/html/guide/topics/renderscript/compute.jd
@@ -215,7 +215,7 @@
 
 <ul>
   <li>{@code renderscript.target} - Specifies the bytecode version to be generated. We
-    recommend you set this value the highest available API level and set {@code
+    recommend you set this value to your minimum required API level and set {@code
     renderscript.support.mode} to {@code true}. Valid values for this setting are any integer value
     from 11 to the most recently released API level. If your minimum SDK version specified in your
     application manifest is set to a higher value, this value is ignored and the target value is set
diff --git a/libs/androidfw/Android.mk b/libs/androidfw/Android.mk
index 2f28700..f682fb8 100644
--- a/libs/androidfw/Android.mk
+++ b/libs/androidfw/Android.mk
@@ -40,10 +40,9 @@
 # For the host
 # =====================================================
 include $(CLEAR_VARS)
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
 LOCAL_MODULE:= libandroidfw
-LOCAL_MODULE_TAGS := optional
+LOCAL_MODULE_HOST_OS := darwin linux windows
 LOCAL_CFLAGS += -DSTATIC_ANDROIDFW_FOR_TOOLS
 LOCAL_CFLAGS += -Wall -Werror -Wunused -Wunreachable-code
 LOCAL_SRC_FILES:= $(hostSources)
@@ -56,13 +55,10 @@
 # =====================================================
 
 include $(CLEAR_VARS)
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
 LOCAL_MODULE:= libandroidfw
-LOCAL_MODULE_TAGS := optional
 LOCAL_SRC_FILES:= $(deviceSources)
 LOCAL_C_INCLUDES := \
-    external/zlib \
     system/core/include
 LOCAL_STATIC_LIBRARIES := libziparchive libbase
 LOCAL_SHARED_LIBRARIES := \
diff --git a/libs/androidfw/AssetManager.cpp b/libs/androidfw/AssetManager.cpp
index 1c39ffe..623ea89 100644
--- a/libs/androidfw/AssetManager.cpp
+++ b/libs/androidfw/AssetManager.cpp
@@ -34,7 +34,7 @@
 #include <utils/String8.h>
 #include <utils/threads.h>
 #include <utils/Timers.h>
-#ifdef HAVE_ANDROID_OS
+#ifdef __ANDROID__
 #include <cutils/trace.h>
 #endif
 
@@ -54,7 +54,7 @@
     _rc; })
 #endif
 
-#ifdef HAVE_ANDROID_OS
+#ifdef __ANDROID__
 #define MY_TRACE_BEGIN(x) ATRACE_BEGIN(x)
 #define MY_TRACE_END() ATRACE_END()
 #else
@@ -229,7 +229,7 @@
         *cookie = static_cast<int32_t>(mAssetPaths.size());
     }
 
-#ifdef HAVE_ANDROID_OS
+#ifdef __ANDROID__
     // Load overlays, if any
     asset_path oap;
     for (size_t idx = 0; mZipSet.getOverlay(ap.path, idx, &oap); idx++) {
@@ -657,7 +657,7 @@
                 ALOGV("Creating shared resources for %s", ap.path.string());
                 sharedRes = new ResTable();
                 sharedRes->add(ass, idmap, nextEntryIdx + 1, false);
-#ifdef HAVE_ANDROID_OS
+#ifdef __ANDROID__
                 const char* data = getenv("ANDROID_DATA");
                 LOG_ALWAYS_FATAL_IF(data == NULL, "ANDROID_DATA not set");
                 String8 overlaysListPath(data);
diff --git a/libs/androidfw/ResourceTypes.cpp b/libs/androidfw/ResourceTypes.cpp
index 8363810..6c9b529 100644
--- a/libs/androidfw/ResourceTypes.cpp
+++ b/libs/androidfw/ResourceTypes.cpp
@@ -721,7 +721,7 @@
                     AutoMutex lock(mDecodeLock);
 
                     if (mCache == NULL) {
-#ifndef HAVE_ANDROID_OS
+#ifndef __ANDROID__
                         if (kDebugStringPoolNoisy) {
                             ALOGI("CREATING STRING CACHE OF %zu bytes",
                                     mHeader->stringCount*sizeof(char16_t**));
diff --git a/libs/androidfw/tests/BackupData_test.cpp b/libs/androidfw/tests/BackupData_test.cpp
index 92af7fe..e25b616 100644
--- a/libs/androidfw/tests/BackupData_test.cpp
+++ b/libs/androidfw/tests/BackupData_test.cpp
@@ -108,7 +108,7 @@
     EXPECT_EQ(DATA1[i], dataBytes[i])
              << "data character " << i << " should be equal";
   }
-  delete dataBytes;
+  delete[] dataBytes;
   delete writer;
   delete reader;
 }
diff --git a/libs/hwui/FontRenderer.cpp b/libs/hwui/FontRenderer.cpp
index c1b50c1..bc75dab 100644
--- a/libs/hwui/FontRenderer.cpp
+++ b/libs/hwui/FontRenderer.cpp
@@ -773,7 +773,7 @@
 #endif
 
     float *gaussian = new float[2 * intRadius + 1];
-    Blur::generateGaussianWeights(gaussian, intRadius);
+    Blur::generateGaussianWeights(gaussian, radius);
 
     uint8_t* scratch = new uint8_t[width * height];
     Blur::horizontal(gaussian, intRadius, *image, scratch, width, height);
diff --git a/libs/hwui/utils/Blur.cpp b/libs/hwui/utils/Blur.cpp
index 877a422..e66cecc 100644
--- a/libs/hwui/utils/Blur.cpp
+++ b/libs/hwui/utils/Blur.cpp
@@ -60,7 +60,9 @@
     return radius > 0 ? 0.3f * radius + 0.6f : 0.0f;
 }
 
-void Blur::generateGaussianWeights(float* weights, int32_t radius) {
+void Blur::generateGaussianWeights(float* weights, float radius) {
+    int32_t intRadius = convertRadiusToInt(radius);
+
     // Compute gaussian weights for the blur
     // e is the euler's number
     static float e = 2.718281828459045f;
@@ -68,7 +70,7 @@
     // g(x) = ( 1 / sqrt( 2 * pi ) * sigma) * e ^ ( -x^2 / 2 * sigma^2 )
     // x is of the form [-radius .. 0 .. radius]
     // and sigma varies with radius.
-    float sigma = legacyConvertRadiusToSigma((float) radius);
+    float sigma = legacyConvertRadiusToSigma(radius);
 
     // Now compute the coefficints
     // We will store some redundant values to save some math during
@@ -78,16 +80,16 @@
     float coeff2 = - 1.0f / (2.0f * sigma * sigma);
 
     float normalizeFactor = 0.0f;
-    for (int32_t r = -radius; r <= radius; r ++) {
+    for (int32_t r = -intRadius; r <= intRadius; r ++) {
         float floatR = (float) r;
-        weights[r + radius] = coeff1 * pow(e, floatR * floatR * coeff2);
-        normalizeFactor += weights[r + radius];
+        weights[r + intRadius] = coeff1 * pow(e, floatR * floatR * coeff2);
+        normalizeFactor += weights[r + intRadius];
     }
 
     //Now we need to normalize the weights because all our coefficients need to add up to one
     normalizeFactor = 1.0f / normalizeFactor;
-    for (int32_t r = -radius; r <= radius; r ++) {
-        weights[r + radius] *= normalizeFactor;
+    for (int32_t r = -intRadius; r <= intRadius; r ++) {
+        weights[r + intRadius] *= normalizeFactor;
     }
 }
 
diff --git a/libs/hwui/utils/Blur.h b/libs/hwui/utils/Blur.h
index b145333..3f21832 100644
--- a/libs/hwui/utils/Blur.h
+++ b/libs/hwui/utils/Blur.h
@@ -34,7 +34,7 @@
     // accounts for that error and snaps to the appropriate integer boundary.
     static uint32_t convertRadiusToInt(float radius);
 
-    static void generateGaussianWeights(float* weights, int32_t radius);
+    static void generateGaussianWeights(float* weights, float radius);
     static void horizontal(float* weights, int32_t radius, const uint8_t* source,
         uint8_t* dest, int32_t width, int32_t height);
     static void vertical(float* weights, int32_t radius, const uint8_t* source,
diff --git a/packages/WallpaperCropper/AndroidManifest.xml b/packages/WallpaperCropper/AndroidManifest.xml
index 81d1085..e558d7e 100644
--- a/packages/WallpaperCropper/AndroidManifest.xml
+++ b/packages/WallpaperCropper/AndroidManifest.xml
@@ -21,7 +21,10 @@
         <uses-permission android:name="android.permission.SET_WALLPAPER" />
         <uses-permission android:name="android.permission.SET_WALLPAPER_HINTS" />
 
-        <application android:requiredForAllUsers="true">
+        <application
+            android:requiredForAllUsers="true"
+            android:largeHeap="true">
+
         <activity
             android:name="WallpaperCropActivity"
             android:theme="@style/Theme.WallpaperCropper"
diff --git a/services/core/java/com/android/server/pm/SELinuxMMAC.java b/services/core/java/com/android/server/pm/SELinuxMMAC.java
index d517642..376ed02 100644
--- a/services/core/java/com/android/server/pm/SELinuxMMAC.java
+++ b/services/core/java/com/android/server/pm/SELinuxMMAC.java
@@ -139,9 +139,6 @@
                     case "signer":
                         policies.add(readSignerOrThrow(parser));
                         break;
-                    case "default":
-                        policies.add(readDefaultOrThrow(parser));
-                        break;
                     default:
                         skip(parser);
                 }
@@ -236,45 +233,6 @@
     }
 
     /**
-     * Loop over a default element looking for seinfo child tags. A {@link Policy}
-     * instance will be created and returned in the process. All other tags encountered
-     * will be skipped.
-     *
-     * @param parser an XmlPullParser object representing a default element.
-     * @return the constructed {@link Policy} instance
-     * @throws IOException
-     * @throws XmlPullParserException
-     * @throws IllegalArgumentException if any of the validation checks fail while
-     *         parsing tag values.
-     * @throws IllegalStateException if any of the invariants fail when constructing
-     *         the {@link Policy} instance.
-     */
-    private static Policy readDefaultOrThrow(XmlPullParser parser) throws IOException,
-            XmlPullParserException {
-
-        parser.require(XmlPullParser.START_TAG, null, "default");
-        Policy.PolicyBuilder pb = new Policy.PolicyBuilder();
-        pb.setAsDefaultPolicy();
-
-        while (parser.next() != XmlPullParser.END_TAG) {
-            if (parser.getEventType() != XmlPullParser.START_TAG) {
-                continue;
-            }
-
-            String tagName = parser.getName();
-            if ("seinfo".equals(tagName)) {
-                String seinfo = parser.getAttributeValue(null, "value");
-                pb.setGlobalSeinfoOrThrow(seinfo);
-                readSeinfo(parser);
-            } else {
-                skip(parser);
-            }
-        }
-
-        return pb.build();
-    }
-
-    /**
      * Loop over a package element looking for seinfo child tags. If found return the
      * value attribute of the seinfo tag, otherwise return null. All other tags encountered
      * will be skipped.
@@ -340,35 +298,28 @@
 
     /**
      * Applies a security label to a package based on an seinfo tag taken from a matched
-     * policy. All signature based policy stanzas are consulted first and, if no match
-     * is found, the default policy stanza is then consulted. The security label is
-     * attached to the ApplicationInfo instance of the package in the event that a matching
-     * policy was found.
+     * policy. All signature based policy stanzas are consulted and, if no match is
+     * found, the default seinfo label of 'default' (set in ApplicationInfo object) is
+     * used. The security label is attached to the ApplicationInfo instance of the package
+     * in the event that a matching policy was found.
      *
      * @param pkg object representing the package to be labeled.
-     * @return boolean which determines whether a non null seinfo label was assigned
-     *         to the package. A null value simply represents that no policy matched.
      */
-    public static boolean assignSeinfoValue(PackageParser.Package pkg) {
+    public static void assignSeinfoValue(PackageParser.Package pkg) {
         synchronized (sPolicies) {
             for (Policy policy : sPolicies) {
                 String seinfo = policy.getMatchedSeinfo(pkg);
                 if (seinfo != null) {
                     pkg.applicationInfo.seinfo = seinfo;
-                    if (DEBUG_POLICY_INSTALL) {
-                        Slog.i(TAG, "package (" + pkg.packageName + ") labeled with " +
-                               "seinfo=" + seinfo);
-                    }
-                    return true;
+                    break;
                 }
             }
         }
 
         if (DEBUG_POLICY_INSTALL) {
-            Slog.i(TAG, "package (" + pkg.packageName + ") doesn't match any policy; " +
-                   "seinfo will remain null");
+            Slog.i(TAG, "package (" + pkg.packageName + ") labeled with " +
+                    "seinfo=" + pkg.applicationInfo.seinfo);
         }
-        return false;
     }
 
     /**
@@ -509,30 +460,16 @@
  *         .build();
  * }
  * </pre>
- * <p>
- * The following is an example of how to use {@link Policy.PolicyBuilder} to create a
- * default based Policy instance.
- * </p>
- * <pre>
- * {@code
- * Policy policy = new Policy.PolicyBuilder()
- *         .setAsDefaultPolicy()
- *         .setGlobalSeinfoOrThrow("default")
- *         .build();
- * }
- * </pre>
  */
 final class Policy {
 
     private final String mSeinfo;
-    private final boolean mDefaultStanza;
     private final Set<Signature> mCerts;
     private final Map<String, String> mPkgMap;
 
     // Use the PolicyBuilder pattern to instantiate
     private Policy(PolicyBuilder builder) {
         mSeinfo = builder.mSeinfo;
-        mDefaultStanza = builder.mDefaultStanza;
         mCerts = Collections.unmodifiableSet(builder.mCerts);
         mPkgMap = Collections.unmodifiableMap(builder.mPkgMap);
     }
@@ -548,15 +485,6 @@
     }
 
     /**
-     * Return whether this policy object represents a default stanza.
-     *
-     * @return A boolean indicating if this object represents a default policy stanza.
-     */
-    public boolean isDefaultStanza() {
-        return mDefaultStanza;
-    }
-
-    /**
      * Return whether this policy object contains package name mapping refinements.
      *
      * @return A boolean indicating if this object has inner package name mappings.
@@ -587,10 +515,6 @@
     @Override
     public String toString() {
         StringBuilder sb = new StringBuilder();
-        if (mDefaultStanza) {
-            sb.append("defaultStanza=true ");
-        }
-
         for (Signature cert : mCerts) {
             sb.append("cert=" + cert.toCharsString().substring(0, 11) + "... ");
         }
@@ -612,22 +536,15 @@
      * is determined using the following steps:
      * </p>
      * <ul>
-     *   <li> If this Policy instance is defined as a default stanza:
-     *       <ul><li>Return the global seinfo value</li></ul>
+     *   <li> All certs used to sign the apk and all certs stored with this policy
+     *     instance are tested for set equality. If this fails then null is returned.
      *   </li>
-     *   <li> If this Policy instance is defined as a signer stanza:
-     *     <ul>
-     *       <li> All certs used to sign the apk and all certs stored with this policy
-     *         instance are tested for set equality. If this fails then null is returned.
-     *       </li>
-     *       <li> If all certs match then an appropriate inner package stanza is
-     *         searched based on package name alone. If matched, the stored seinfo
-     *         value for that mapping is returned.
-     *       </li>
-     *       <li> If all certs matched and no inner package stanza matches then return
-     *         the global seinfo value. The returned value can be null in this case.
-     *       </li>
-     *     </ul>
+     *   <li> If all certs match then an appropriate inner package stanza is
+     *     searched based on package name alone. If matched, the stored seinfo
+     *     value for that mapping is returned.
+     *   </li>
+     *   <li> If all certs matched and no inner package stanza matches then return
+     *     the global seinfo value. The returned value can be null in this case.
      *   </li>
      * </ul>
      * <p>
@@ -639,37 +556,34 @@
      *         A value of null can also be returned if no match occured.
      */
     public String getMatchedSeinfo(PackageParser.Package pkg) {
-        if (!mDefaultStanza) {
-            // Check for exact signature matches across all certs.
-            Signature[] certs = mCerts.toArray(new Signature[0]);
-            if (!Signature.areExactMatch(certs, pkg.mSignatures)) {
-                return null;
-            }
-
-            // Check for inner package name matches given that the
-            // signature checks already passed.
-            String seinfoValue = mPkgMap.get(pkg.packageName);
-            if (seinfoValue != null) {
-                return seinfoValue;
-            }
+        // Check for exact signature matches across all certs.
+        Signature[] certs = mCerts.toArray(new Signature[0]);
+        if (!Signature.areExactMatch(certs, pkg.mSignatures)) {
+            return null;
         }
 
-        // Return the global seinfo value (even if it's null).
+        // Check for inner package name matches given that the
+        // signature checks already passed.
+        String seinfoValue = mPkgMap.get(pkg.packageName);
+        if (seinfoValue != null) {
+            return seinfoValue;
+        }
+
+        // Return the global seinfo value.
         return mSeinfo;
     }
 
     /**
      * A nested builder class to create {@link Policy} instances. A {@link Policy}
      * class instance represents one valid policy stanza found in a mac_permissions.xml
-     * file. A valid policy stanza is defined to be either a signer or default stanza
-     * which obeys the rules outlined in external/sepolicy/mac_permissions.xml. The
-     * {@link #build} method ensures a set of invariants are upheld enforcing the correct
-     * stanza structure before returning a valid Policy object.
+     * file. A valid policy stanza is defined to be a signer stanza which obeys the rules
+     * outlined in external/sepolicy/mac_permissions.xml. The {@link #build} method
+     * ensures a set of invariants are upheld enforcing the correct stanza structure
+     * before returning a valid Policy object.
      */
     public static final class PolicyBuilder {
 
         private String mSeinfo;
-        private boolean mDefaultStanza;
         private final Set<Signature> mCerts;
         private final Map<String, String> mPkgMap;
 
@@ -679,19 +593,6 @@
         }
 
         /**
-         * Sets this stanza as a default stanza. All policy stanzas are assumed to
-         * be signer stanzas unless this method is explicitly called. Default stanzas
-         * are treated differently with respect to allowable child tags, ordering and
-         * when and how policy decisions are enforced.
-         *
-         * @return The reference to this PolicyBuilder.
-         */
-        public PolicyBuilder setAsDefaultPolicy() {
-            mDefaultStanza = true;
-            return this;
-        }
-
-        /**
          * Adds a signature to the set of certs used for validation checks. The purpose
          * being that all contained certs will need to be matched against all certs
          * contained with an apk.
@@ -713,11 +614,8 @@
 
         /**
          * Set the global seinfo tag for this policy stanza. The global seinfo tag
-         * represents the seinfo element that is used in one of two ways depending on
-         * its context. When attached to a signer tag the global seinfo represents an
-         * assignment when there isn't a further inner package refinement in policy.
-         * When used with a default tag, it represents the only allowable assignment
-         * value.
+         * when attached to a signer tag represents the assignment when there isn't a
+         * further inner package refinement in policy.
          *
          * @param seinfo the seinfo value given as a String.
          * @return The reference to this PolicyBuilder.
@@ -743,9 +641,7 @@
         /**
          * Create a package name to seinfo value mapping. Each mapping represents
          * the seinfo value that will be assigned to the described package name.
-         * These localized mappings allow the global seinfo to be overriden. This
-         * mapping provides no value when used in conjunction with a default stanza;
-         * enforced through the {@link #build} method.
+         * These localized mappings allow the global seinfo to be overriden.
          *
          * @param pkgName the android package name given to the app
          * @param seinfo the seinfo value that will be assigned to the passed pkgName
@@ -802,51 +698,25 @@
          * about the expected structure of a policy stanza.
          * Those invariants are:
          * </p>
-         *    <ul>
-         *      <li> If a default stanza
-         *        <ul>
-         *          <li> an attached global seinfo tag must be present </li>
-         *          <li> no signatures and no package names can be present </li>
-         *        </ul>
-         *      </li>
-         *      <li> If a signer stanza
-         *        <ul>
-         *           <li> at least one cert must be found </li>
-         *           <li> either a global seinfo value is present OR at least one
-         *           inner package mapping must be present BUT not both. </li>
-         *        </ul>
-         *      </li>
-         *    </ul>
-         *
+         * <ul>
+         *   <li> at least one cert must be found </li>
+         *   <li> either a global seinfo value is present OR at least one
+         *     inner package mapping must be present BUT not both. </li>
+         * </ul>
          * @return an instance of {@link Policy} with the options set from this builder
          * @throws IllegalStateException if an invariant is violated.
          */
         public Policy build() {
             Policy p = new Policy(this);
 
-            if (p.mDefaultStanza) {
-                if (p.mSeinfo == null) {
-                    String err = "Missing global seinfo tag with default stanza.";
-                    throw new IllegalStateException(err);
-                }
-                if (p.mCerts.size() != 0) {
-                    String err = "Certs not allowed with default stanza.";
-                    throw new IllegalStateException(err);
-                }
-                if (!p.mPkgMap.isEmpty()) {
-                    String err = "Inner package mappings not allowed with default stanza.";
-                    throw new IllegalStateException(err);
-                }
-            } else {
-                if (p.mCerts.size() == 0) {
-                    String err = "Missing certs with signer tag. Expecting at least one.";
-                    throw new IllegalStateException(err);
-                }
-                if (!(p.mSeinfo == null ^ p.mPkgMap.isEmpty())) {
-                    String err = "Only seinfo tag XOR package tags are allowed within " +
-                            "a signer stanza.";
-                    throw new IllegalStateException(err);
-                }
+            if (p.mCerts.isEmpty()) {
+                String err = "Missing certs with signer tag. Expecting at least one.";
+                throw new IllegalStateException(err);
+            }
+            if (!(p.mSeinfo == null ^ p.mPkgMap.isEmpty())) {
+                String err = "Only seinfo tag XOR package tags are allowed within " +
+                        "a signer stanza.";
+                throw new IllegalStateException(err);
             }
 
             return p;
@@ -861,7 +731,6 @@
  * <ul>
  *   <li> signer stanzas with inner package mappings </li>
  *   <li> signer stanzas with global seinfo tags </li>
- *   <li> default stanza </li>
  * </ul>
  * This comparison also checks for duplicate entries on the input selectors. Any
  * found duplicates will be flagged and can be checked with {@link #foundDuplicate}.
@@ -878,11 +747,6 @@
     @Override
     public int compare(Policy p1, Policy p2) {
 
-        // Give precedence to signature stanzas over default stanzas
-        if (p1.isDefaultStanza() != p2.isDefaultStanza()) {
-            return p1.isDefaultStanza() ? 1 : -1;
-        }
-
         // Give precedence to stanzas with inner package mappings
         if (p1.hasInnerPackages() != p2.hasInnerPackages()) {
             return p1.hasInnerPackages() ? -1 : 1;
@@ -890,7 +754,7 @@
 
         // Check for duplicate entries
         if (p1.getSignatures().equals(p2.getSignatures())) {
-            // Checks if default stanza or a signer w/o inner package names
+            // Checks if signer w/o inner package names
             if (p1.hasGlobalSeinfo()) {
                 duplicateFound = true;
                 Slog.e(SELinuxMMAC.TAG, "Duplicate policy entry: " + p1.toString());
diff --git a/services/core/java/com/android/server/updates/SELinuxPolicyInstallReceiver.java b/services/core/java/com/android/server/updates/SELinuxPolicyInstallReceiver.java
index 04774d4..1ac2622 100644
--- a/services/core/java/com/android/server/updates/SELinuxPolicyInstallReceiver.java
+++ b/services/core/java/com/android/server/updates/SELinuxPolicyInstallReceiver.java
@@ -37,7 +37,7 @@
     private static final String TAG = "SELinuxPolicyInstallReceiver";
 
     private static final String sepolicyPath = "sepolicy";
-    private static final String fileContextsPath = "file_contexts";
+    private static final String fileContextsPath = "file_contexts.bin";
     private static final String propertyContextsPath = "property_contexts";
     private static final String seappContextsPath = "seapp_contexts";
     private static final String versionPath = "selinux_version";
diff --git a/services/core/java/com/android/server/wm/WindowManagerService.java b/services/core/java/com/android/server/wm/WindowManagerService.java
index 85b2a41..97a38925 100644
--- a/services/core/java/com/android/server/wm/WindowManagerService.java
+++ b/services/core/java/com/android/server/wm/WindowManagerService.java
@@ -639,6 +639,7 @@
     final InputManagerService mInputManager;
     final DisplayManagerInternal mDisplayManagerInternal;
     final DisplayManager mDisplayManager;
+    final Display[] mDisplays;
 
     // Who is holding the screen on.
     Session mHoldingScreenOn;
@@ -851,8 +852,8 @@
 
         mFxSession = new SurfaceSession();
         mDisplayManager = (DisplayManager)context.getSystemService(Context.DISPLAY_SERVICE);
-        Display[] displays = mDisplayManager.getDisplays();
-        for (Display display : displays) {
+        mDisplays = mDisplayManager.getDisplays();
+        for (Display display : mDisplays) {
             createDisplayContentLocked(display);
         }
 
@@ -7599,7 +7600,9 @@
     }
 
     public void displayReady() {
-        displayReady(Display.DEFAULT_DISPLAY);
+        for (Display display : mDisplays) {
+            displayReady(display.getDisplayId());
+        }
 
         synchronized(mWindowMap) {
             final DisplayContent displayContent = getDefaultDisplayContentLocked();
diff --git a/tools/aapt/Android.mk b/tools/aapt/Android.mk
index 94a74c4..92eb262 100644
--- a/tools/aapt/Android.mk
+++ b/tools/aapt/Android.mk
@@ -53,7 +53,6 @@
     tests/Pseudolocales_test.cpp \
     tests/ResourceFilter_test.cpp
 
-aaptHostLdLibs :=
 aaptHostStaticLibs := \
     libandroidfw \
     libpng \
@@ -67,17 +66,13 @@
 aaptCFlags := -DAAPT_VERSION=\"$(BUILD_NUMBER_FROM_FILE)\"
 aaptCFlags += -Wall -Werror
 
-ifeq ($(HOST_OS),linux)
-    aaptHostLdLibs += -lrt -ldl -lpthread
-endif
+aaptHostLdLibs_linux := -lrt -ldl -lpthread
 
 # Statically link libz for MinGW (Win SDK under Linux),
 # and dynamically link for all others.
-ifneq ($(strip $(USE_MINGW)),)
-    aaptHostStaticLibs += libz
-else
-    aaptHostLdLibs += -lz
-endif
+aaptHostStaticLibs_windows := libz
+aaptHostLdLibs_linux += -lz
+aaptHostLdLibs_darwin := -lz
 
 
 # ==========================================================
@@ -86,13 +81,13 @@
 include $(CLEAR_VARS)
 
 LOCAL_MODULE := libaapt
-LOCAL_CFLAGS += -Wno-format-y2k -DSTATIC_ANDROIDFW_FOR_TOOLS $(aaptCFlags)
-LOCAL_CPPFLAGS += $(aaptCppFlags)
-ifeq (darwin,$(HOST_OS))
-LOCAL_CFLAGS += -D_DARWIN_UNLIMITED_STREAMS
-endif
+LOCAL_MODULE_HOST_OS := darwin linux windows
+LOCAL_CFLAGS := -Wno-format-y2k -DSTATIC_ANDROIDFW_FOR_TOOLS $(aaptCFlags)
+LOCAL_CPPFLAGS := $(aaptCppFlags)
+LOCAL_CFLAGS_darwin := -D_DARWIN_UNLIMITED_STREAMS
 LOCAL_SRC_FILES := $(aaptSources)
-LOCAL_STATIC_LIBRARIES += $(aaptHostStaticLibs)
+LOCAL_STATIC_LIBRARIES := $(aaptHostStaticLibs)
+LOCAL_STATIC_LIBRARIES_windows := $(aaptHostStaticLibs_windows)
 
 include $(BUILD_HOST_STATIC_LIBRARY)
 
@@ -102,11 +97,14 @@
 include $(CLEAR_VARS)
 
 LOCAL_MODULE := aapt
-LOCAL_CFLAGS += $(aaptCFlags)
-LOCAL_CPPFLAGS += $(aaptCppFlags)
-LOCAL_LDLIBS += $(aaptHostLdLibs)
+LOCAL_MODULE_HOST_OS := darwin linux windows
+LOCAL_CFLAGS := $(aaptCFlags)
+LOCAL_CPPFLAGS := $(aaptCppFlags)
+LOCAL_LDLIBS_darwin := $(aaptHostLdLibs_darwin)
+LOCAL_LDLIBS_linux := $(aaptHostLdLibs_linux)
 LOCAL_SRC_FILES := $(aaptMain)
-LOCAL_STATIC_LIBRARIES += libaapt $(aaptHostStaticLibs)
+LOCAL_STATIC_LIBRARIES := libaapt $(aaptHostStaticLibs)
+LOCAL_STATIC_LIBRARIES_windows := $(aaptHostStaticLibs_windows)
 
 include $(BUILD_HOST_EXECUTABLE)
 
@@ -115,15 +113,16 @@
 # Build the host tests: libaapt_tests
 # ==========================================================
 include $(CLEAR_VARS)
-LOCAL_ADDITIONAL_DEPENDENCIES := $(LOCAL_PATH)/Android.mk
 
 LOCAL_MODULE := libaapt_tests
-LOCAL_CFLAGS += $(aaptCFlags)
-LOCAL_CPPFLAGS += $(aaptCppFlags)
-LOCAL_LDLIBS += $(aaptHostLdLibs)
-LOCAL_SRC_FILES += $(aaptTests)
-LOCAL_C_INCLUDES += $(LOCAL_PATH)
-LOCAL_STATIC_LIBRARIES += libaapt $(aaptHostStaticLibs)
+LOCAL_CFLAGS := $(aaptCFlags)
+LOCAL_CPPFLAGS := $(aaptCppFlags)
+LOCAL_LDLIBS_darwin := $(aaptHostLdLibs_darwin)
+LOCAL_LDLIBS_linux := $(aaptHostLdLibs_linux)
+LOCAL_SRC_FILES := $(aaptTests)
+LOCAL_C_INCLUDES := $(LOCAL_PATH)
+LOCAL_STATIC_LIBRARIES := libaapt $(aaptHostStaticLibs)
+LOCAL_STATIC_LIBRARIES_windows := $(aaptHostStaticLibs_windows)
 
 include $(BUILD_HOST_NATIVE_TEST)
 
diff --git a/tools/aapt/CacheUpdater.h b/tools/aapt/CacheUpdater.h
index fade53a..10a1bbc 100644
--- a/tools/aapt/CacheUpdater.h
+++ b/tools/aapt/CacheUpdater.h
@@ -12,7 +12,7 @@
 #include <sys/stat.h>
 #include <stdio.h>
 #include "Images.h"
-#ifdef HAVE_MS_C_RUNTIME
+#ifdef _WIN32
 #include <direct.h>
 #endif
 
@@ -81,7 +81,7 @@
                 // Advance to the next segment of the path
                 existsPath.appendPath(toCreate.walkPath(&remains));
                 toCreate = remains;
-#ifdef HAVE_MS_C_RUNTIME
+#ifdef _WIN32
                 _mkdir(existsPath.string());
 #else
                 mkdir(existsPath.string(), S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP);
diff --git a/tools/aapt/Command.cpp b/tools/aapt/Command.cpp
index 8a0a39c..d12ab3b 100644
--- a/tools/aapt/Command.cpp
+++ b/tools/aapt/Command.cpp
@@ -215,7 +215,7 @@
             goto bail;
         }
 
-#ifdef HAVE_ANDROID_OS
+#ifdef __ANDROID__
         static const bool kHaveAndroidOs = true;
 #else
         static const bool kHaveAndroidOs = false;
@@ -633,7 +633,7 @@
     Asset* asset = NULL;
 
     if (strcmp("resources", option) == 0) {
-#ifndef HAVE_ANDROID_OS
+#ifndef __ANDROID__
         res.print(bundle->getValues());
 #endif
 
diff --git a/tools/aapt/Resource.cpp b/tools/aapt/Resource.cpp
index beb94fd..aa7778f 100644
--- a/tools/aapt/Resource.cpp
+++ b/tools/aapt/Resource.cpp
@@ -2682,7 +2682,7 @@
                 if (s > last && (*s == '.' || *s == 0)) {
                     String8 part(last, s-last);
                     dest.appendPath(part);
-#ifdef HAVE_MS_C_RUNTIME
+#ifdef _WIN32
                     _mkdir(dest.string());
 #else
                     mkdir(dest.string(), S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP);
diff --git a/tools/aapt/XMLNode.cpp b/tools/aapt/XMLNode.cpp
index bf31bc1..1860147 100644
--- a/tools/aapt/XMLNode.cpp
+++ b/tools/aapt/XMLNode.cpp
@@ -12,7 +12,7 @@
 #include <errno.h>
 #include <string.h>
 
-#ifndef HAVE_MS_C_RUNTIME
+#ifndef _WIN32
 #define O_BINARY 0
 #endif
 
diff --git a/tools/aidl/AST.h b/tools/aidl/AST.h
index ead5e7a..0640b2a6a 100644
--- a/tools/aidl/AST.h
+++ b/tools/aidl/AST.h
@@ -1,5 +1,5 @@
-#ifndef AIDL_AST_H
-#define AIDL_AST_H
+#ifndef AIDL_AST_H_
+#define AIDL_AST_H_
 
 #include <string>
 #include <vector>
@@ -7,7 +7,9 @@
 #include <stdarg.h>
 #include <stdio.h>
 
-using namespace std;
+using std::set;
+using std::string;
+using std::vector;
 
 class Type;
 
@@ -368,4 +370,4 @@
     virtual void Write(FILE* to);
 };
 
-#endif // AIDL_AST_H
+#endif // AIDL_AST_H_
diff --git a/tools/aidl/Android.mk b/tools/aidl/Android.mk
index efd60a2..354563a 100644
--- a/tools/aidl/Android.mk
+++ b/tools/aidl/Android.mk
@@ -6,24 +6,65 @@
 ifeq ($(TARGET_BUILD_APPS)$(filter true,$(TARGET_BUILD_PDK)),)
 
 LOCAL_PATH:= $(call my-dir)
+
+# Logic shared between aidl and its unittests
 include $(CLEAR_VARS)
+LOCAL_MODULE := libaidl-common
+
+LOCAL_CLANG_CFLAGS := -Wall -Werror
+# Tragically, the code is riddled with unused parameters.
+LOCAL_CLANG_CFLAGS += -Wno-unused-parameter
+# yacc dumps a lot of code *just in case*.
+LOCAL_CLANG_CFLAGS += -Wno-unused-function
+LOCAL_CLANG_CFLAGS += -Wno-unneeded-internal-declaration
+# yacc is a tool from a more civilized age.
+LOCAL_CLANG_CFLAGS += -Wno-deprecated-register
+# yacc also has a habit of using char* over const char*.
+LOCAL_CLANG_CFLAGS += -Wno-writable-strings
 
 LOCAL_SRC_FILES := \
-	aidl_language_l.l \
-	aidl_language_y.y \
-	aidl.cpp \
-	aidl_language.cpp \
-	options.cpp \
-	search_path.cpp \
-	AST.cpp \
-	Type.cpp \
-	generate_java.cpp \
-	generate_java_binder.cpp \
-	generate_java_rpc.cpp
+    AST.cpp \
+    Type.cpp \
+    aidl.cpp \
+    aidl_language.cpp \
+    aidl_language_l.l \
+    aidl_language_y.y \
+    generate_java.cpp \
+    generate_java_binder.cpp \
+    generate_java_rpc.cpp \
+    options.cpp \
+    search_path.cpp \
 
-LOCAL_CFLAGS := -g
+include $(BUILD_HOST_STATIC_LIBRARY)
+
+
+# aidl executable
+include $(CLEAR_VARS)
 LOCAL_MODULE := aidl
 
+LOCAL_MODULE_HOST_OS := darwin linux windows
+LOCAL_CFLAGS := -Wall -Werror
+LOCAL_SRC_FILES := main.cpp
+LOCAL_STATIC_LIBRARIES := libaidl-common
 include $(BUILD_HOST_EXECUTABLE)
 
+
+# Unit tests
+include $(CLEAR_VARS)
+LOCAL_MODULE := aidl_unittests
+
+LOCAL_CFLAGS := -g -DUNIT_TEST -Wall -Werror
+LOCAL_SRC_FILES := \
+    options_unittest.cpp \
+    test_main.cpp \
+    tests/test.cpp \
+
+LOCAL_STATIC_LIBRARIES := \
+    libaidl-common \
+    libgmock_host \
+    libgtest_host \
+
+LOCAL_LDLIBS := -lrt
+include $(BUILD_HOST_NATIVE_TEST)
+
 endif # No TARGET_BUILD_APPS or TARGET_BUILD_PDK
diff --git a/tools/aidl/Type.h b/tools/aidl/Type.h
index ae12720..cf6eaff 100644
--- a/tools/aidl/Type.h
+++ b/tools/aidl/Type.h
@@ -1,11 +1,12 @@
-#ifndef AIDL_TYPE_H
-#define AIDL_TYPE_H
+#ifndef AIDL_TYPE_H_
+#define AIDL_TYPE_H_
 
 #include "AST.h"
 #include <string>
 #include <vector>
 
-using namespace std;
+using std::string;
+using std::vector;
 
 class Type
 {
@@ -539,4 +540,4 @@
 
 void register_base_types();
 
-#endif // AIDL_TYPE_H
+#endif // AIDL_TYPE_H_
diff --git a/tools/aidl/aidl.cpp b/tools/aidl/aidl.cpp
index 368e73d..d77f2b1 100644
--- a/tools/aidl/aidl.cpp
+++ b/tools/aidl/aidl.cpp
@@ -15,7 +15,7 @@
 #include <string.h>
 #include <map>
 
-#ifdef HAVE_MS_C_RUNTIME
+#ifdef _WIN32
 #include <io.h>
 #include <direct.h>
 #include <sys/stat.h>
@@ -31,7 +31,10 @@
 #define MIN_USER_SET_METHOD_ID                0
 #define MAX_USER_SET_METHOD_ID                16777214
 
-using namespace std;
+using std::map;
+using std::set;
+using std::string;
+using std::vector;
 
 static void
 test_document(document_item_type* d)
@@ -162,11 +165,6 @@
 {
 }
 
-static ParserCallbacks g_importCallbacks = {
-    &main_document_parsed,
-    &import_import_parsed
-};
-
 // ==========================================================
 static int
 check_filename(const char* filename, const char* package, buffer_type* name)
@@ -754,7 +752,7 @@
         if (path[i] == OS_PATH_SEPARATOR) {
             string p = path.substr(0, i);
             if (access(path.data(), F_OK) != 0) {
-#ifdef HAVE_MS_C_RUNTIME
+#ifdef _WIN32
                 _mkdir(p.data());
 #else
                 mkdir(p.data(), S_IRUSR|S_IWUSR|S_IXUSR|S_IRGRP|S_IXGRP);
@@ -938,7 +936,7 @@
 }
 
 // ==========================================================
-static int
+int
 compile_aidl(Options& options)
 {
     int err = 0, N;
@@ -1068,7 +1066,7 @@
     return err;
 }
 
-static int
+int
 preprocess_aidl(const Options& options)
 {
     vector<string> lines;
@@ -1113,7 +1111,7 @@
     // write preprocessed file
     int fd = open( options.outputFileName.c_str(), 
                    O_RDWR|O_CREAT|O_TRUNC|O_BINARY,
-#ifdef HAVE_MS_C_RUNTIME
+#ifdef _WIN32
                    _S_IREAD|_S_IWRITE);
 #else    
                    S_IRUSR|S_IWUSR|S_IRGRP);
@@ -1140,24 +1138,3 @@
     close(fd);
     return 0;
 }
-
-// ==========================================================
-int
-main(int argc, const char **argv)
-{
-    Options options;
-    int result = parse_options(argc, argv, &options);
-    if (result) {
-        return result;
-    }
-
-    switch (options.task)
-    {
-        case COMPILE_AIDL:
-            return compile_aidl(options);
-        case PREPROCESS_AIDL:
-            return preprocess_aidl(options);
-    }
-    fprintf(stderr, "aidl: internal error\n");
-    return 1;
-}
diff --git a/tools/aidl/aidl.h b/tools/aidl/aidl.h
new file mode 100644
index 0000000..98b15f3
--- /dev/null
+++ b/tools/aidl/aidl.h
@@ -0,0 +1,9 @@
+#ifndef AIDL_AIDL_H_
+#define AIDL_AIDL_H_
+
+#include "options.h"
+
+int compile_aidl(Options& options);
+int preprocess_aidl(const Options& options);
+
+#endif  // AIDL_AIDL_H_
diff --git a/tools/aidl/aidl_language.cpp b/tools/aidl/aidl_language.cpp
index cd6a3bd..5fab6c2 100644
--- a/tools/aidl/aidl_language.cpp
+++ b/tools/aidl/aidl_language.cpp
@@ -3,7 +3,7 @@
 #include <string.h>
 #include <stdlib.h>
 
-#ifdef HAVE_MS_C_RUNTIME
+#ifdef _WIN32
 int isatty(int  fd)
 {
     return (fd == 0);
diff --git a/tools/aidl/aidl_language.h b/tools/aidl/aidl_language.h
index de1370c..1be5a9b 100644
--- a/tools/aidl/aidl_language.h
+++ b/tools/aidl/aidl_language.h
@@ -1,5 +1,5 @@
-#ifndef DEVICE_TOOLS_AIDL_AIDL_LANGUAGE_H
-#define DEVICE_TOOLS_AIDL_AIDL_LANGUAGE_H
+#ifndef AIDL_AIDL_LANGUAGE_H_
+#define AIDL_AIDL_LANGUAGE_H_
 
 
 typedef enum {
@@ -169,4 +169,4 @@
 #endif
 
 
-#endif // DEVICE_TOOLS_AIDL_AIDL_LANGUAGE_H
+#endif // AIDL_AIDL_LANGUAGE_H_
diff --git a/tools/aidl/generate_java.h b/tools/aidl/generate_java.h
index 4bfcfeb..413a5b3 100644
--- a/tools/aidl/generate_java.h
+++ b/tools/aidl/generate_java.h
@@ -1,12 +1,13 @@
-#ifndef GENERATE_JAVA_H
-#define GENERATE_JAVA_H
+#ifndef AIDL_GENERATE_JAVA_H_
+#define AIDL_GENERATE_JAVA_H_
 
 #include "aidl_language.h"
 #include "AST.h"
 
 #include <string>
 
-using namespace std;
+using std::string;
+using std::vector;
 
 int generate_java(const string& filename, const string& originalSrc,
                 interface_type* iface);
@@ -29,5 +30,5 @@
     int m_index;
 };
 
-#endif // GENERATE_JAVA_H
+#endif // AIDL_GENERATE_JAVA_H_
 
diff --git a/tools/aidl/main.cpp b/tools/aidl/main.cpp
new file mode 100644
index 0000000..7cc2198
--- /dev/null
+++ b/tools/aidl/main.cpp
@@ -0,0 +1,23 @@
+#include "aidl.h"
+#include "options.h"
+
+#include <stdio.h>
+
+int
+main(int argc, const char **argv)
+{
+    Options options;
+    int result = parse_options(argc, argv, &options);
+    if (result) {
+        return result;
+    }
+
+    switch (options.task) {
+        case COMPILE_AIDL:
+            return compile_aidl(options);
+        case PREPROCESS_AIDL:
+            return preprocess_aidl(options);
+    }
+    fprintf(stderr, "aidl: internal error\n");
+    return 1;
+}
diff --git a/tools/aidl/options.cpp b/tools/aidl/options.cpp
index 7b2daeb..52b0972 100644
--- a/tools/aidl/options.cpp
+++ b/tools/aidl/options.cpp
@@ -48,10 +48,6 @@
         return 0;
     }
 
-    options->task = COMPILE_AIDL;
-    options->failOnParcelable = false;
-    options->autoDepFile = false;
-
     // OPTIONS
     while (i < argc) {
         const char* s = argv[i];
diff --git a/tools/aidl/options.h b/tools/aidl/options.h
index 387e37d..65d0961 100644
--- a/tools/aidl/options.h
+++ b/tools/aidl/options.h
@@ -1,11 +1,12 @@
-#ifndef DEVICE_TOOLS_AIDL_H
-#define DEVICE_TOOLS_AIDL_H
+#ifndef AIDL_OPTIONS_H_
+#define AIDL_OPTIONS_H_
 
 #include <string.h>
 #include <string>
 #include <vector>
 
-using namespace std;
+using std::string;
+using std::vector;
 
 enum {
     COMPILE_AIDL,
@@ -15,15 +16,15 @@
 // This struct is the parsed version of the command line options
 struct Options
 {
-    int task;
-    bool failOnParcelable;
+    int task{COMPILE_AIDL};
+    bool failOnParcelable{false};
     vector<string> importPaths;
     vector<string> preprocessedFiles;
     string inputFileName;
     string outputFileName;
     string outputBaseFolder;
     string depFileName;
-    bool autoDepFile;
+    bool autoDepFile{false};
 
     vector<string> filesToPreprocess;
 };
@@ -33,4 +34,4 @@
 // It also prints the usage statement on failure.
 int parse_options(int argc, const char* const* argv, Options *options);
 
-#endif // DEVICE_TOOLS_AIDL_H
+#endif // AIDL_OPTIONS_H_
diff --git a/tools/aidl/options_test.cpp b/tools/aidl/options_test.cpp
index bd106ce..7ac527d 100644
--- a/tools/aidl/options_test.cpp
+++ b/tools/aidl/options_test.cpp
@@ -3,7 +3,8 @@
 
 const bool VERBOSE = false;
 
-using namespace std;
+using std::string;
+using std::vector;
 
 struct Answer {
     const char* argv[8];
diff --git a/tools/aidl/options_unittest.cpp b/tools/aidl/options_unittest.cpp
new file mode 100644
index 0000000..fec7f87
--- /dev/null
+++ b/tools/aidl/options_unittest.cpp
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2015, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string>
+#include <vector>
+
+#include <gtest/gtest.h>
+
+#include "options.h"
+
+using std::vector;
+using std::string;
+
+const char kPreprocessCommandOutputFile[] = "output_file_name";
+const char kPreprocessCommandInput1[] = "input1";
+const char kPreprocessCommandInput2[] = "input2";
+const char kPreprocessCommandInput3[] = "input3";
+const char* kPreprocessCommand[] = {
+    "aidl", "--preprocess",
+    kPreprocessCommandOutputFile,
+    kPreprocessCommandInput1,
+    kPreprocessCommandInput2,
+    kPreprocessCommandInput3,
+};
+
+TEST(OptionsTests, ParsesPreprocess) {
+  Options options;
+  const int argc = sizeof(kPreprocessCommand) / sizeof(*kPreprocessCommand);
+  EXPECT_EQ(parse_options(argc, kPreprocessCommand, &options), 0);
+  EXPECT_EQ(options.task, PREPROCESS_AIDL);
+  EXPECT_EQ(options.failOnParcelable, false);
+  EXPECT_EQ(options.importPaths.size(), 0u);
+  EXPECT_EQ(options.preprocessedFiles.size(), 0u);
+  EXPECT_EQ(options.inputFileName, string{""});
+  EXPECT_EQ(options.outputFileName, string{kPreprocessCommandOutputFile});
+  EXPECT_EQ(options.autoDepFile, false);
+  const vector<string> expected_input{kPreprocessCommandInput1,
+                                      kPreprocessCommandInput2,
+                                      kPreprocessCommandInput3};
+  EXPECT_EQ(options.filesToPreprocess, expected_input);
+}
diff --git a/tools/aidl/os.h b/tools/aidl/os.h
index 79d2c35..752ed47 100644
--- a/tools/aidl/os.h
+++ b/tools/aidl/os.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef _FRAMEWORKS_BASE_TOOLS_AIDL_OS_SEP_H_
-#define _FRAMEWORKS_BASE_TOOLS_AIDL_OS_SEP_H_
+#ifndef AIDL_OS_H_
+#define AIDL_OS_H_
 
 #if defined(_WIN32)
 #define OS_PATH_SEPARATOR '\\'
@@ -23,4 +23,4 @@
 #define OS_PATH_SEPARATOR '/'
 #endif
 
-#endif
+#endif  // AIDL_OS_H_
diff --git a/tools/aidl/search_path.cpp b/tools/aidl/search_path.cpp
index 29dbe26..029e216 100644
--- a/tools/aidl/search_path.cpp
+++ b/tools/aidl/search_path.cpp
@@ -4,7 +4,7 @@
 #include "os.h"
 #include <string.h>
 
-#ifdef HAVE_MS_C_RUNTIME
+#ifdef _WIN32
 #include <io.h>
 #endif
 
@@ -42,7 +42,7 @@
         }
         f.append(expected);
 
-#ifdef HAVE_MS_C_RUNTIME
+#ifdef _WIN32
         /* check that the file exists and is not write-only */
         if (0 == _access(f.c_str(), 0) &&  /* mode 0=exist */
             0 == _access(f.c_str(), 4) ) { /* mode 4=readable */
diff --git a/tools/aidl/search_path.h b/tools/aidl/search_path.h
index 2bf94b1..de10d9b 100644
--- a/tools/aidl/search_path.h
+++ b/tools/aidl/search_path.h
@@ -1,12 +1,15 @@
-#ifndef DEVICE_TOOLS_AIDL_SEARCH_PATH_H
-#define DEVICE_TOOLS_AIDL_SEARCH_PATH_H
+#ifndef AIDL_SEARCH_PATH_H_
+#define AIDL_SEARCH_PATH_H_
 
 #include <stdio.h>
 
 #if __cplusplus
 #include <vector>
 #include <string>
-using namespace std;
+
+using std::string;
+using std::vector;
+
 extern "C" {
 #endif
 
@@ -19,5 +22,4 @@
 void set_import_paths(const vector<string>& importPaths);
 #endif
 
-#endif // DEVICE_TOOLS_AIDL_SEARCH_PATH_H
-
+#endif // AIDL_SEARCH_PATH_H_
diff --git a/tools/aidl/test_main.cpp b/tools/aidl/test_main.cpp
new file mode 100644
index 0000000..4d820af7
--- /dev/null
+++ b/tools/aidl/test_main.cpp
@@ -0,0 +1,6 @@
+#include <gtest/gtest.h>
+
+int main(int argc, char **argv) {
+  ::testing::InitGoogleTest(&argc, argv);
+  return RUN_ALL_TESTS();
+}
diff --git a/tools/aidl/tests/test.cpp b/tools/aidl/tests/test.cpp
new file mode 100644
index 0000000..15ae294
--- /dev/null
+++ b/tools/aidl/tests/test.cpp
@@ -0,0 +1,3 @@
+#include <gtest/gtest.h>
+
+TEST(DummyCase, DummyTest) {}
diff --git a/tools/split-select/Android.mk b/tools/split-select/Android.mk
index d9ddf08..239bed5 100644
--- a/tools/split-select/Android.mk
+++ b/tools/split-select/Android.mk
@@ -43,7 +43,6 @@
     external/zlib \
     frameworks/base/tools
 
-hostLdLibs :=
 hostStaticLibs := \
     libaapt \
     libandroidfw \
@@ -57,17 +56,13 @@
 
 cFlags := -Wall -Werror
 
-ifeq ($(HOST_OS),linux)
-    hostLdLibs += -lrt -ldl -lpthread
-endif
+hostLdLibs_linux := -lrt -ldl -lpthread
 
 # Statically link libz for MinGW (Win SDK under Linux),
 # and dynamically link for all others.
-ifneq ($(strip $(USE_MINGW)),)
-    hostStaticLibs += libz
-else
-    hostLdLibs += -lz
-endif
+hostStaticLibs_windows := libz
+hostLdLibs_darwin := -lz
+hostLdLibs_linux += -lz
 
 
 # ==========================================================
@@ -75,11 +70,12 @@
 # ==========================================================
 include $(CLEAR_VARS)
 LOCAL_MODULE := libsplit-select
+LOCAL_MODULE_HOST_OS := darwin linux windows
 
 LOCAL_SRC_FILES := $(sources)
 
-LOCAL_C_INCLUDES += $(cIncludes)
-LOCAL_CFLAGS += $(cFlags) -D_DARWIN_UNLIMITED_STREAMS
+LOCAL_C_INCLUDES := $(cIncludes)
+LOCAL_CFLAGS := $(cFlags) -D_DARWIN_UNLIMITED_STREAMS
 
 include $(BUILD_HOST_STATIC_LIBRARY)
 
@@ -93,10 +89,12 @@
 
 LOCAL_SRC_FILES := $(testSources)
 
-LOCAL_C_INCLUDES += $(cIncludes)
-LOCAL_STATIC_LIBRARIES += libsplit-select $(hostStaticLibs)
-LOCAL_LDLIBS += $(hostLdLibs)
-LOCAL_CFLAGS += $(cFlags)
+LOCAL_C_INCLUDES := $(cIncludes)
+LOCAL_STATIC_LIBRARIES := libsplit-select $(hostStaticLibs)
+LOCAL_STATIC_LIBRARIES_windows := $(hostStaticLibs_windows)
+LOCAL_LDLIBS_darwin := $(hostLdLibs_darwin)
+LOCAL_LDLIBS_linux := $(hostLdLibs_linux)
+LOCAL_CFLAGS := $(cFlags)
 
 include $(BUILD_HOST_NATIVE_TEST)
 
@@ -105,13 +103,16 @@
 # ==========================================================
 include $(CLEAR_VARS)
 LOCAL_MODULE := split-select
+LOCAL_MODULE_HOST_OS := darwin linux windows
 
 LOCAL_SRC_FILES := $(main)
 
-LOCAL_C_INCLUDES += $(cIncludes)
-LOCAL_STATIC_LIBRARIES += libsplit-select $(hostStaticLibs)
-LOCAL_LDLIBS += $(hostLdLibs)
-LOCAL_CFLAGS += $(cFlags)
+LOCAL_C_INCLUDES := $(cIncludes)
+LOCAL_STATIC_LIBRARIES := libsplit-select $(hostStaticLibs)
+LOCAL_STATIC_LIBRARIES_windows := $(hostStaticLibs_windows)
+LOCAL_LDLIBS_darwin := $(hostLdLibs_darwin)
+LOCAL_LDLIBS_linux := $(hostLdLibs_linux)
+LOCAL_CFLAGS := $(cFlags)
 
 include $(BUILD_HOST_EXECUTABLE)