diff --git a/core/dex_preopt_config.mk b/core/dex_preopt_config.mk
index 767e99a..4d308aa 100644
--- a/core/dex_preopt_config.mk
+++ b/core/dex_preopt_config.mk
@@ -45,7 +45,11 @@
     product/app/% \
     product/priv-app/% \
 
-# The default values for pre-opting: always preopt PIC.
+# The default values for pre-opting. To support the runtime module we ensure no dex files
+# get stripped.
+ifeq ($(PRODUCT_DEX_PREOPT_NEVER_ALLOW_STRIPPING),)
+  PRODUCT_DEX_PREOPT_NEVER_ALLOW_STRIPPING := true
+endif
 # Conditional to building on linux, as dex2oat currently does not work on darwin.
 ifeq ($(HOST_OS),linux)
   WITH_DEXPREOPT ?= true
@@ -134,6 +138,7 @@
   $(call add_json_str,  DefaultCompilerFilter,              $(PRODUCT_DEX_PREOPT_DEFAULT_COMPILER_FILTER))
   $(call add_json_str,  SystemServerCompilerFilter,         $(PRODUCT_SYSTEM_SERVER_COMPILER_FILTER))
   $(call add_json_bool, GenerateDmFiles,                    $(PRODUCT_DEX_PREOPT_GENERATE_DM_FILES))
+  $(call add_json_bool, NeverAllowStripping,                $(PRODUCT_DEX_PREOPT_NEVER_ALLOW_STRIPPING))
   $(call add_json_bool, NoDebugInfo,                        $(filter false,$(WITH_DEXPREOPT_DEBUG_INFO)))
   $(call add_json_bool, AlwaysSystemServerDebugInfo,        $(filter true,$(PRODUCT_SYSTEM_SERVER_DEBUG_INFO)))
   $(call add_json_bool, NeverSystemServerDebugInfo,         $(filter false,$(PRODUCT_SYSTEM_SERVER_DEBUG_INFO)))
diff --git a/core/dex_preopt_odex_install.mk b/core/dex_preopt_odex_install.mk
index f5d1491..4106b75 100644
--- a/core/dex_preopt_odex_install.mk
+++ b/core/dex_preopt_odex_install.mk
@@ -119,6 +119,17 @@
 my_dexpreopt_archs :=
 
 ifdef LOCAL_DEX_PREOPT
+  ifeq (,$(filter PRESIGNED,$(LOCAL_CERTIFICATE)))
+    # Store uncompressed dex files preopted in /system
+    ifeq ($(BOARD_USES_SYSTEM_OTHER_ODEX),true)
+      ifeq ($(call install-on-system-other, $(my_module_path)),)
+        LOCAL_UNCOMPRESS_DEX := true
+      endif  # install-on-system-other
+    else  # BOARD_USES_SYSTEM_OTHER_ODEX
+      LOCAL_UNCOMPRESS_DEX := true
+    endif
+  endif
+
   ifeq ($(LOCAL_MODULE_CLASS),JAVA_LIBRARIES)
     my_module_multilib := $(LOCAL_MULTILIB)
     # If the module is not an SDK library and it's a system server jar, only preopt the primary arch.
diff --git a/core/product.mk b/core/product.mk
index 0baa9f2..a1c3bdb 100644
--- a/core/product.mk
+++ b/core/product.mk
@@ -180,6 +180,7 @@
     PRODUCT_DEX_PREOPT_PROFILE_DIR \
     PRODUCT_DEX_PREOPT_BOOT_IMAGE_PROFILE_LOCATION \
     PRODUCT_DEX_PREOPT_GENERATE_DM_FILES \
+    PRODUCT_DEX_PREOPT_NEVER_ALLOW_STRIPPING \
     PRODUCT_USE_PROFILE_FOR_BOOT_IMAGE \
     PRODUCT_SYSTEM_SERVER_COMPILER_FILTER \
     PRODUCT_SANITIZER_MODULE_CONFIGS \
diff --git a/core/product_config.mk b/core/product_config.mk
index 01fbc0a..8919354 100644
--- a/core/product_config.mk
+++ b/core/product_config.mk
@@ -408,6 +408,8 @@
     $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_DEX_PREOPT_BOOT_FLAGS))
 PRODUCT_DEX_PREOPT_PROFILE_DIR := \
     $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_DEX_PREOPT_PROFILE_DIR))
+PRODUCT_DEX_PREOPT_NEVER_ALLOW_STRIPPING := \
+    $(strip $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_DEX_PREOPT_NEVER_ALLOW_STRIPPING))
 
 # Boot image options.
 PRODUCT_USE_PROFILE_FOR_BOOT_IMAGE := \