4 files changed, 48 insertions, 0 deletions
diff --git a/prebuilt/Android.mk b/prebuilt/Android.mk
index 9302c118e..f79204208 100644
--- a/prebuilt/Android.mk
+++ b/prebuilt/Android.mk
@@ -491,6 +491,18 @@ ifeq ($(TW_INCLUDE_DUMLOCK), true)
 	include $(BUILD_PREBUILT)
 endif
 
+ifeq ($(TW_USE_TOOLBOX), true)
+    include $(CLEAR_VARS)
+    LOCAL_MODULE := mkshrc_twrp
+    LOCAL_MODULE_TAGS := eng
+    LOCAL_MODULE_CLASS := ETC
+    LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/etc
+    LOCAL_SRC_FILES := $(LOCAL_MODULE)
+    LOCAL_POST_INSTALL_CMD := \
+        $(hide) mv $(TARGET_RECOVERY_ROOT_OUT)/etc/mkshrc_twrp $(TARGET_RECOVERY_ROOT_OUT)/etc/mkshrc
+    include $(BUILD_PREBUILT)
+endif
+
 #TWRP App "placeholder"
 include $(CLEAR_VARS)
 LOCAL_MODULE := me.twrp.twrpapp.apk
@@ -499,3 +511,18 @@ LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES
 LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/sbin
 LOCAL_SRC_FILES := $(LOCAL_MODULE)
 include $(BUILD_PREBUILT)
+
+ifeq ($(TW_INCLUDE_CRYPTO), true)
+    ifneq ($(TW_CRYPTO_USE_SYSTEM_VOLD),)
+        ifneq ($(shell test $(PLATFORM_SDK_VERSION) -ge 28; echo $$?),0)
+            # Prebuilt vdc_pie for pre-Pie SDK Platforms
+            include $(CLEAR_VARS)
+            LOCAL_MODULE := vdc_pie
+            LOCAL_MODULE_TAGS := eng
+            LOCAL_MODULE_CLASS := RECOVERY_EXECUTABLES
+            LOCAL_MODULE_PATH := $(TARGET_RECOVERY_ROOT_OUT)/sbin
+            LOCAL_SRC_FILES := vdc_pie-$(TARGET_ARCH)
+            include $(BUILD_PREBUILT)
+        endif
+    endif
+endif
diff --git a/prebuilt/mkshrc_twrp b/prebuilt/mkshrc_twrp
new file mode 100755
index 000000000..c103d6c56
--- /dev/null
+++ b/prebuilt/mkshrc_twrp
@@ -0,0 +1,21 @@
+# Copyright (c) 2010, 2012, 2013, 2014
+#	Thorsten Glaser <tg@mirbsd.org>
+# This file is provided under the same terms as mksh.
+#-
+# Minimal /system/etc/mkshrc for Android
+#
+# Support: https://launchpad.net/mksh
+
+: ${HOSTNAME:=$(getprop ro.product.device)}
+: ${HOSTNAME:=android}
+: ${TMPDIR:=/tmp}
+export HOSTNAME TMPDIR
+
+if (( USER_ID )); then PS1='$'; else PS1='#'; fi
+PS4='[$EPOCHREALTIME] '; PS1='${|
+	local e=$?
+
+	(( e )) && REPLY+="$e|"
+
+	return $e
+}$HOSTNAME:${PWD:-?} '"$PS1 "
diff --git a/prebuilt/vdc_pie-arm b/prebuilt/vdc_pie-arm
new file mode 100755
index 000000000..cf05cad53
--- /dev/null
+++ b/prebuilt/vdc_pie-arm
diff --git a/prebuilt/vdc_pie-arm64 b/prebuilt/vdc_pie-arm64
new file mode 100755
index 000000000..46231402f
--- /dev/null
+++ b/prebuilt/vdc_pie-arm64