diff --git a/Android.bp b/Android.bp
index aced8a6..578cc68 100644
--- a/Android.bp
+++ b/Android.bp
@@ -43,26 +43,39 @@ cc_library_headers {
     min_sdk_version: "29",
 }
 
-rust_ffi_shared {
-    name: "libquiche_shared",
+rust_defaults {
+    name: "libquiche_defaults",
     stem: "libquiche",
     host_supported: true,
     crate_name: "quiche",
     cargo_env_compat: true,
     srcs: ["src/lib.rs"],
     edition: "2018",
     features: [
-        "boringssl-vendored",
+        "boringssl",
         "default",
     ],
-    rustlibs: [
+    // Link all crates statically to create a self-contained .so library.
+    rlibs: [
         "liblazy_static",
         "liblibc",
         "liblibm",
         "liblog_rust",
         "libring",
     ],
-    static_libs: [
+    prefer_rlib: true,
+    // For DnsResolver (Mainline module introduced in Q).
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.resolv",
+    ],
+    min_sdk_version: "29",
+}
+
+rust_ffi {
+    name: "libquiche_ffi",
+    defaults: ["libquiche_defaults"],
+    shared_libs: [
         "libcrypto",
         "libssl",
     ],
@@ -69,54 +82,20 @@ rust_ffi_shared {
 
 rust_library {
     name: "libquiche",
-    host_supported: true,
-    crate_name: "quiche",
-    cargo_env_compat: true,
-    srcs: ["src/lib.rs"],
-    edition: "2018",
-    features: [
-        "boringssl-vendored",
-        "default",
-    ],
-    rustlibs: [
-        "liblazy_static",
-        "liblibc",
-        "liblibm",
-        "liblog_rust",
-        "libring",
-    ],
-    static_libs: [
+    defaults: ["libquiche_defaults"],
+    shared_libs: [
         "libcrypto",
         "libssl",
     ],
-    apex_available: [
-        "//apex_available:platform",
-        "com.android.resolv",
-    ],
-    min_sdk_version: "29",
 }
 
-rust_ffi_static {
+// This target is used by doh_unit_test to prevent compatibility issues
+// because doh_unit_test needs to be run on the R platform.
+rust_library_rlib {
     name: "libquiche_static",
-    stem: "libquiche",
-    host_supported: true,
-    crate_name: "quiche",
-    cargo_env_compat: true,
-    srcs: ["src/lib.rs"],
-    edition: "2018",
-    features: [
-        "boringssl-vendored",
-        "default",
-    ],
-    rustlibs: [
-        "liblazy_static",
-        "liblibc",
-        "liblibm",
-        "liblog_rust",
-        "libring",
-    ],
+    defaults: ["libquiche_defaults"],
     static_libs: [
-        "libcrypto",
+        "libcrypto_static",
         "libssl",
     ],
     apex_available: [
@@ -111,17 +90,13 @@ rust_library_rlib {
     min_sdk_version: "29",
 }
 
-rust_test {
-    name: "quiche_test_src_lib",
-    host_supported: true,
+rust_defaults {
+    name: "quiche_test_defaults",
     crate_name: "quiche",
     cargo_env_compat: true,
     srcs: ["src/lib.rs"],
     test_suites: ["general-tests"],
     auto_gen_config: true,
-    test_options: {
-        unit_test: true,
-    },
     edition: "2018",
     features: [
         "boringssl",
@@ -136,10 +132,6 @@ rust_test {
         "libring",
         "liburl",
     ],
-    static_libs: [
-        "libcrypto",
-        "libssl",
-    ],
     data: [
         "examples/cert.crt",
         "examples/cert.key",
@@ -149,3 +118,26 @@ rust_test {
         "examples/rootca.crt",
     ],
 }
+
+rust_test_host {
+    name: "quiche_host_test_src_lib",
+    defaults: ["quiche_test_defaults"],
+    test_options: {
+        unit_test: true,
+    },
+    shared_libs: [
+        "libcrypto",
+        "libssl",
+    ],
+}
+
+rust_test {
+    name: "quiche_device_test_src_lib",
+    defaults: ["quiche_test_defaults"],
+    // To run this test in R platform, it's required to statically link
+    // libcrypto and libssl.
+    static_libs: [
+        "libcrypto_static",
+        "libssl",
+    ],
+}