Propagate unique_host_soname to cc_library prebuilts.

Test: m nothing
Test: Check on go/Android.bp that cc_prebuilt_library supports
  unique_host_soname
Bug: 158743135
Change-Id: Ie02a5cae057fb9092c226d8c5b7f63e1f66ad066

cc/library_sdk_member.go

@@ -124,6 +124,14 @@ func (mt *librarySdkMemberType) AddPrebuiltModule(ctx android.SdkMemberContext,
 	if stl != nil {
 		pbm.AddProperty("stl", proptools.String(stl))
 	}
+
+	if lib, ok := ccModule.linker.(*libraryDecorator); ok {
+		uhs := lib.Properties.Unique_host_soname
+		if uhs != nil {
+			pbm.AddProperty("unique_host_soname", proptools.Bool(uhs))
+		}
+	}
+
 	return pbm
 }
 

sdk/cc_sdk_test.go

@@ -1976,3 +1976,83 @@ sdk_snapshot {
 }
 `))
 }
+
+func TestUniqueHostSoname(t *testing.T) {
+	// b/145598135 - Generating host snapshots for anything other than linux is not supported.
+	SkipIfNotLinux(t)
+
+	result := testSdkWithCc(t, `
+		sdk {
+			name: "mysdk",
+			host_supported: true,
+			native_shared_libs: ["mylib"],
+		}
+
+		cc_library {
+			name: "mylib",
+			host_supported: true,
+			unique_host_soname: true,
+		}
+	`)
+
+	result.CheckSnapshot("mysdk", "",
+		checkAndroidBpContents(`
+// This is auto-generated. DO NOT EDIT.
+
+cc_prebuilt_library_shared {
+    name: "mysdk_mylib@current",
+    sdk_member_name: "mylib",
+    host_supported: true,
+    installable: false,
+    unique_host_soname: true,
+    target: {
+        android_arm64: {
+            srcs: ["android/arm64/lib/mylib.so"],
+        },
+        android_arm: {
+            srcs: ["android/arm/lib/mylib.so"],
+        },
+        linux_glibc_x86_64: {
+            srcs: ["linux_glibc/x86_64/lib/mylib-host.so"],
+        },
+        linux_glibc_x86: {
+            srcs: ["linux_glibc/x86/lib/mylib-host.so"],
+        },
+    },
+}
+
+cc_prebuilt_library_shared {
+    name: "mylib",
+    prefer: false,
+    host_supported: true,
+    unique_host_soname: true,
+    target: {
+        android_arm64: {
+            srcs: ["android/arm64/lib/mylib.so"],
+        },
+        android_arm: {
+            srcs: ["android/arm/lib/mylib.so"],
+        },
+        linux_glibc_x86_64: {
+            srcs: ["linux_glibc/x86_64/lib/mylib-host.so"],
+        },
+        linux_glibc_x86: {
+            srcs: ["linux_glibc/x86/lib/mylib-host.so"],
+        },
+    },
+}
+
+sdk_snapshot {
+    name: "mysdk@current",
+    host_supported: true,
+    native_shared_libs: ["mysdk_mylib@current"],
+}
+`),
+		checkAllCopyRules(`
+.intermediates/mylib/android_arm64_armv8-a_shared/mylib.so -> android/arm64/lib/mylib.so
+.intermediates/mylib/android_arm_armv7-a-neon_shared/mylib.so -> android/arm/lib/mylib.so
+.intermediates/mylib/linux_glibc_x86_64_shared/mylib-host.so -> linux_glibc/x86_64/lib/mylib-host.so
+.intermediates/mylib/linux_glibc_x86_shared/mylib-host.so -> linux_glibc/x86/lib/mylib-host.so
+`),
+	)
+}