Dexlayout cleanup and refactoring.

Created option to output to a mem map in preparation of hooking
dexlayout into dex2oat.

Test: mm test-art-host-gtest-dexlayout_test
Bug: 29921113
Change-Id: Id42ef15cb8f83cc8d05b025b7647a4338e9b96b0
diff --git a/dexlayout/Android.bp b/dexlayout/Android.bp
index b9266f7..9ee9ebd 100644
--- a/dexlayout/Android.bp
+++ b/dexlayout/Android.bp
@@ -12,28 +12,46 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-art_cc_binary {
-    name: "dexlayout",
+art_cc_defaults {
+    name: "libart-dexlayout-defaults",
     host_supported: true,
     srcs: [
-        "dexlayout_main.cc",
         "dexlayout.cc",
         "dex_ir.cc",
         "dex_ir_builder.cc",
         "dex_visualize.cc",
         "dex_writer.cc",
     ],
+    export_include_dirs: ["."],
+    shared_libs: ["libbase"],
+    static_libs: ["libz"],
+}
+
+art_cc_library {
+    name: "libart-dexlayout",
+    defaults: ["libart-dexlayout-defaults"],
+    shared_libs: ["libart"],
+}
+
+art_cc_library {
+    name: "libartd-dexlayout",
+    defaults: ["libart-dexlayout-defaults"],
+    shared_libs: ["libartd"],
+}
+
+art_cc_binary {
+    name: "dexlayout",
+    host_supported: true,
+    srcs: ["dexlayout_main.cc"],
     cflags: ["-Wall"],
     shared_libs: [
         "libart",
-        "libbase",
+        "libart-dexlayout",
     ],
 }
 
 art_cc_test {
     name: "art_dexlayout_tests",
-    defaults: [
-        "art_gtest_defaults",
-    ],
+    defaults: ["art_gtest_defaults"],
     srcs: ["dexlayout_test.cc"],
 }