diff --git a/fs_mgr/Android.bp b/fs_mgr/Android.bp
index eb737bb..34c64d2 100644
--- a/fs_mgr/Android.bp
+++ b/fs_mgr/Android.bp
@@ -26,14 +26,14 @@
     ],
 }
 
-cc_library {
-    // Do not ever allow this library to be vendor_available as a shared library.
-    // It does not have a stable interface.
-    name: "libfs_mgr",
+cc_defaults {
+    name: "libfs_mgr_defaults",
     defaults: ["fs_mgr_defaults"],
-    recovery_available: true,
     export_include_dirs: ["include"],
     include_dirs: ["system/vold"],
+    cflags: [
+        "-D_FILE_OFFSET_BITS=64",
+    ],
     srcs: [
         "file_wait.cpp",
         "fs_mgr.cpp",
@@ -43,6 +43,7 @@
         "fs_mgr_overlayfs.cpp",
         "fs_mgr_roots.cpp",
         "fs_mgr_vendor_overlay.cpp",
+        ":libfiemap_srcs",
     ],
     shared_libs: [
         "libbase",
@@ -88,6 +89,42 @@
             ],
         },
     },
+    header_libs: [
+        "libfiemap_headers",
+    ],
+    export_header_lib_headers: [
+        "libfiemap_headers",
+    ],
+}
+
+// Two variants of libfs_mgr are provided: libfs_mgr and libfs_mgr_binder.
+// Use libfs_mgr in recovery, first-stage-init, or when libfiemap or overlayfs
+// is not used.
+//
+// Use libfs_mgr_binder when not in recovery/first-stage init, or when overlayfs
+// or libfiemap is needed. In this case, libfiemap will proxy over binder to
+// gsid.
+cc_library {
+    // Do not ever allow this library to be vendor_available as a shared library.
+    // It does not have a stable interface.
+    name: "libfs_mgr",
+    recovery_available: true,
+    defaults: [
+        "libfs_mgr_defaults",
+    ],
+    srcs: [
+        ":libfiemap_passthrough_srcs",
+    ],
+}
+
+cc_library {
+    // Do not ever allow this library to be vendor_available as a shared library.
+    // It does not have a stable interface.
+    name: "libfs_mgr_binder",
+    defaults: [
+        "libfs_mgr_defaults",
+        "libfiemap_binder_defaults",
+    ],
 }
 
 cc_library_static {
diff --git a/fs_mgr/libfiemap/Android.bp b/fs_mgr/libfiemap/Android.bp
index 8dbbf4c..fdc1583 100644
--- a/fs_mgr/libfiemap/Android.bp
+++ b/fs_mgr/libfiemap/Android.bp
@@ -20,15 +20,8 @@
     export_include_dirs: ["include"],
 }
 
-cc_defaults {
-    name: "libfiemap_defaults",
-    defaults: ["fs_mgr_defaults"],
-    cflags: [
-        "-D_FILE_OFFSET_BITS=64",
-        "-Wall",
-        "-Werror",
-    ],
-
+filegroup {
+    name: "libfiemap_srcs",
     srcs: [
         "fiemap_writer.cpp",
         "image_manager.cpp",
@@ -36,55 +29,32 @@
         "split_fiemap_writer.cpp",
         "utility.cpp",
     ],
-
-    static_libs: [
-        "libdm",
-        "libext2_uuid",
-        "libext4_utils",
-        "liblp",
-        "libfs_mgr",
-    ],
-
-    shared_libs: [
-        "libbase",
-    ],
-
-    header_libs: [
-        "libfiemap_headers",
-        "liblog_headers",
-    ],
-
-    export_shared_lib_headers: [
-        "libbase",
-    ],
-
-    export_header_lib_headers: [
-        "libfiemap_headers",
-    ],
 }
 
-// Open up a binder IImageManager interface.
-cc_library_static {
-    name: "libfiemap_binder",
-    defaults: ["libfiemap_defaults"],
+filegroup {
+    name: "libfiemap_binder_srcs",
     srcs: [
         "binder.cpp",
     ],
+}
+
+cc_defaults {
+    name: "libfiemap_binder_defaults",
+    srcs: [":libfiemap_binder_srcs"],
     whole_static_libs: [
         "gsi_aidl_interface-cpp",
         "libgsi",
     ],
     shared_libs: [
         "libbinder",
+        "libutils",
     ],
 }
 
 // Open up a passthrough IImageManager interface. Use libfiemap_binder whenever
 // possible. This should only be used when binder is not available.
-cc_library_static {
-    name: "libfiemap_passthrough",
-    defaults: ["libfiemap_defaults"],
-    recovery_available: true,
+filegroup {
+    name: "libfiemap_passthrough_srcs",
     srcs: [
         "passthrough.cpp",
     ],
@@ -92,10 +62,10 @@
 
 cc_test {
     name: "fiemap_writer_test",
-    defaults: ["libfiemap_defaults"],
     static_libs: [
         "libbase",
         "libdm",
+        "libfs_mgr",
         "liblog",
     ],
 
@@ -112,7 +82,6 @@
 
 cc_test {
     name: "fiemap_image_test",
-    defaults: ["libfiemap_defaults"],
     static_libs: [
         "libdm",
         "libext4_utils",
@@ -120,6 +89,7 @@
         "liblp",
     ],
     shared_libs: [
+        "libbase",
         "libcrypto",
         "libcrypto_utils",
         "libcutils",
diff --git a/fs_mgr/libsnapshot/Android.bp b/fs_mgr/libsnapshot/Android.bp
index 30d01a6..eadcecc 100644
--- a/fs_mgr/libsnapshot/Android.bp
+++ b/fs_mgr/libsnapshot/Android.bp
@@ -30,7 +30,6 @@
     static_libs: [
         "libcutils",
         "libdm",
-        "libfs_mgr",
         "libfstab",
         "liblp",
         "update_metadata-protos",
@@ -93,8 +92,8 @@
         "libsnapshot_hal_deps",
     ],
     srcs: [":libsnapshot_sources"],
-    whole_static_libs: [
-        "libfiemap_binder",
+    static_libs: [
+        "libfs_mgr_binder"
     ],
 }
 
@@ -103,8 +102,8 @@
     defaults: ["libsnapshot_defaults"],
     srcs: [":libsnapshot_sources"],
     recovery_available: true,
-    whole_static_libs: [
-        "libfiemap_passthrough",
+    static_libs: [
+        "libfs_mgr",
     ],
 }
 
@@ -116,8 +115,8 @@
     ],
     srcs: [":libsnapshot_sources"],
     recovery_available: true,
-    whole_static_libs: [
-        "libfiemap_passthrough",
+    static_libs: [
+        "libfs_mgr",
     ],
 }
 
@@ -144,6 +143,7 @@
         "libstorage_literals_headers",
     ],
     static_libs: [
+        "libfs_mgr",
         "libgtest",
         "libgmock",
     ],
@@ -170,6 +170,7 @@
         "android.hardware.boot@1.1",
         "libfs_mgr",
         "libgmock",
+        "libgsi",
         "liblp",
         "libsnapshot",
         "libsnapshot_test_helpers",
@@ -189,7 +190,6 @@
     static_libs: [
         "libdm",
         "libext2_uuid",
-        "libfiemap_binder",
         "libfstab",
         "libsnapshot",
     ],
@@ -200,7 +200,7 @@
         "libbinder",
         "libbinderthreadstate",
         "libext4_utils",
-        "libfs_mgr",
+        "libfs_mgr_binder",
         "libhidlbase",
         "liblog",
         "liblp",