Merge "Add misc_info.txt needed to build super.img"
diff --git a/Usage.txt b/Usage.txt
index 558329b..ea4788a 100644
--- a/Usage.txt
+++ b/Usage.txt
@@ -26,12 +26,6 @@
       If no targets are specified, the build system will build the images
       for the configured product and variant.
 
-  An alternative to setting $TARGET_PRODUCT and $TARGET_BUILD_VARIANT,
-  which you may see in build servers, is to execute:
-
-    m PRODUCT-<product>-<variant>
-
-
   A target may be a file path. For example, out/host/linux-x86/bin/adb .
     Note that when giving a relative file path as a target, that path is
     interpreted relative to the root of the source tree (rather than relative
diff --git a/core/Makefile b/core/Makefile
index e2cd3ff..183807c 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1172,7 +1172,8 @@
 .PHONY: notice_files
 
 # Create the rule to combine the files into text and html/xml forms
-# $(1) - xml_excluded_vendor_product|xml_vendor|xml_product|html
+# $(1) - xml_excluded_system_product_odm|xml_excluded_vendor_product_odm
+#        xml_product|xml_odm|xml_system_ext|xml_system|html
 # $(2) - Plain text output file
 # $(3) - HTML/XML output file
 # $(4) - File title
@@ -1197,11 +1198,13 @@
 $(2) : $(3)
 $(3) : $(6) $(BUILD_SYSTEM)/Makefile build/make/tools/generate-notice-files.py
 	build/make/tools/generate-notice-files.py --text-output $(2) \
-	    $(if $(filter $(1),xml_excluded_extra_partitions),-e vendor -e product -e system_ext --xml-output, \
-	      $(if $(filter $(1),xml_vendor),-i vendor --xml-output, \
+	    $(if $(filter $(1),xml_excluded_vendor_product_odm),-e vendor -e product -e system_ext -e odm --xml-output, \
+	      $(if $(filter $(1),xml_excluded_system_product_odm),-e system -e product -e system_ext -e odm --xml-output, \
 	        $(if $(filter $(1),xml_product),-i product --xml-output, \
 	          $(if $(filter $(1),xml_system_ext),-i system_ext --xml-output, \
-	            --html-output)))) $(3) \
+	            $(if $(filter $(1),xml_system),-i system --xml-output, \
+	              $(if $(filter $(1),xml_odm),-i odm --xml-output, \
+	                --html-output)))))) $(3) \
 	    -t $$(PRIVATE_MESSAGE) -s $$(PRIVATE_DIR)/src
 notice_files: $(2) $(3)
 endef
@@ -1254,6 +1257,11 @@
 target_system_ext_notice_file_xml_gz := $(TARGET_OUT_INTERMEDIATES)/NOTICE_SYSTEM_EXT.xml.gz
 installed_system_ext_notice_xml_gz := $(TARGET_OUT_SYSTEM_EXT)/etc/NOTICE.xml.gz
 
+target_odm_notice_file_txt := $(TARGET_OUT_INTERMEDIATES)/NOTICE_ODM.txt
+target_odm_notice_file_xml := $(TARGET_OUT_INTERMEDIATES)/NOTICE_ODM.xml
+target_odm_notice_file_xml_gz := $(TARGET_OUT_INTERMEDIATES)/NOTICE_ODM.xml.gz
+installed_odm_notice_xml_gz := $(TARGET_OUT_ODM)/etc/NOTICE.xml.gz
+
 # Notice files are copied to TARGET_OUT_NOTICE_FILES as a side-effect of their module
 # being built. A notice xml file must depend on all modules that could potentially
 # install a license file relevant to it.
@@ -1262,22 +1270,38 @@
 license_modules := $(filter-out $(TARGET_OUT_FAKE)/%,$(license_modules))
 # testcases are not relevant to the system image.
 license_modules := $(filter-out $(TARGET_OUT_TESTCASES)/%,$(license_modules))
+license_modules_system := $(filter $(TARGET_OUT)/%,$(license_modules))
 license_modules_vendor := $(filter $(TARGET_OUT_VENDOR)/%,$(license_modules))
 license_modules_product := $(filter $(TARGET_OUT_PRODUCT)/%,$(license_modules))
 license_modules_system_ext := $(filter $(TARGET_OUT_SYSTEM_EXT)/%,$(license_modules))
-license_modules_agg := $(license_modules_vendor) $(license_modules_product) $(license_modules_system_ext)
-license_modules_rest := $(filter-out $(license_modules_agg),$(license_modules))
+license_modules_odm := $(filter $(TARGET_OUT_ODM)/%,$(license_modules))
+license_modules_agg := $(license_modules_system) \
+                       $(license_modules_vendor) \
+                       $(license_modules_product) \
+                       $(license_modules_system_ext) \
+                       $(license_modules_odm)
+license_modules_vendor += $(filter-out $(license_modules_agg),$(license_modules))
+system_xml_directories := xml_system
+system_notice_file_message := "Notices for files contained in the system filesystem image in this directory:"
 
-$(eval $(call combine-notice-files, xml_excluded_extra_partitions, \
+# If we are building in a configuration that includes a prebuilt vendor.img, we can't
+# update its notice file, so include those notices in the system partition instead
+ifdef BOARD_PREBUILT_VENDORIMAGE
+license_modules_system += $(filter-out $(license_modules_agg),$(license_modules))
+system_xml_directories := xml_excluded_vendor_product_odm
+system_notice_file_message := "Notices for files contained in all filesystem images except vendor/system_ext/product/odm in this directory:"
+endif
+
+$(eval $(call combine-notice-files, $(system_xml_directories), \
 	        $(target_notice_file_txt), \
 	        $(target_notice_file_xml), \
-	        "Notices for files contained in the filesystem images in this directory:", \
+	        $(system_notice_file_message), \
 	        $(TARGET_OUT_NOTICE_FILES), \
-	        $(license_modules_rest)))
-$(eval $(call combine-notice-files, xml_vendor, \
+	        $(license_modules_system)))
+$(eval $(call combine-notice-files, xml_excluded_system_product_odm, \
 	        $(target_vendor_notice_file_txt), \
 	        $(target_vendor_notice_file_xml), \
-	        "Notices for files contained in the vendor filesystem image in this directory:", \
+	        "Notices for files contained in all filesystem images except system/system_ext/product/odm in this directory:", \
 	        $(TARGET_OUT_NOTICE_FILES), \
 	        $(license_modules_vendor)))
 $(eval $(call combine-notice-files, xml_product, \
@@ -1292,6 +1316,12 @@
 	        "Notices for files contained in the system_ext filesystem image in this directory:", \
 	        $(TARGET_OUT_NOTICE_FILES), \
 	        $(license_modules_system_ext)))
+$(eval $(call combine-notice-files, xml_odm, \
+	        $(target_odm_notice_file_txt), \
+	        $(target_odm_notice_file_xml), \
+	        "Notices for files contained in the odm filesystem image in this directory:", \
+	        $(TARGET_OUT_NOTICE_FILES), \
+	        $(license_modules_odm)))
 
 $(target_notice_file_xml_gz): $(target_notice_file_xml) | $(MINIGZIP)
 	$(hide) $(MINIGZIP) -9 < $< > $@
@@ -1301,6 +1331,8 @@
 	$(hide) $(MINIGZIP) -9 < $< > $@
 $(target_system_ext_notice_file_xml_gz): $(target_system_ext_notice_file_xml) | $(MINIGZIP)
 	$(hide) $(MINIGZIP) -9 < $< > $@
+$(target_odm_notice_file_xml_gz): $(target_odm_notice_file_xml) | $(MINIGZIP)
+	$(hide) $(MINIGZIP) -9 < $< > $@
 $(installed_notice_html_or_xml_gz): $(target_notice_file_xml_gz)
 	$(copy-file-to-target)
 $(installed_vendor_notice_xml_gz): $(target_vendor_notice_file_xml_gz)
@@ -1309,6 +1341,8 @@
 	$(copy-file-to-target)
 $(installed_system_ext_notice_xml_gz): $(target_system_ext_notice_file_xml_gz)
 	$(copy-file-to-target)
+$(installed_odm_notice_xml_gz): $(target_odm_notice_file_xml_gz)
+	$(copy-file-to-target)
 
 # if we've been run my mm, mmm, etc, don't reinstall this every time
 ifeq ($(ONE_SHOT_MAKEFILE),)
@@ -1316,6 +1350,7 @@
   ALL_DEFAULT_INSTALLED_MODULES += $(installed_vendor_notice_xml_gz)
   ALL_DEFAULT_INSTALLED_MODULES += $(installed_product_notice_xml_gz)
   ALL_DEFAULT_INSTALLED_MODULES += $(installed_system_ext_notice_xml_gz)
+  ALL_DEFAULT_INSTALLED_MODULES += $(installed_odm_notice_xml_gz)
 endif
 endif # PRODUCT_NOTICE_SPLIT
 
@@ -2165,7 +2200,8 @@
 	  $(AVBTOOL) add_hash_footer \
 	    --image $@ \
 	    --partition_size $(BOARD_BOOTIMAGE_PARTITION_SIZE) \
-	    --partition_name boot $(PRIVATE_AVB_DEBUG_BOOT_SIGNING_ARGS), \
+	    --partition_name boot $(PRIVATE_AVB_DEBUG_BOOT_SIGNING_ARGS) \
+	    $(BOARD_AVB_BOOT_ADD_HASH_FOOTER_ARGS), \
 	  $(call assert-max-image-size,$@,$(BOARD_BOOTIMAGE_PARTITION_SIZE)))
 
 .PHONY: bootimage_debug-nodeps
@@ -2177,7 +2213,8 @@
 	  $(AVBTOOL) add_hash_footer \
 	    --image $(INSTALLED_DEBUG_BOOTIMAGE_TARGET) \
 	    --partition_size $(BOARD_BOOTIMAGE_PARTITION_SIZE) \
-	    --partition_name boot $(PRIVATE_AVB_DEBUG_BOOT_SIGNING_ARGS), \
+	    --partition_name boot $(PRIVATE_AVB_DEBUG_BOOT_SIGNING_ARGS) \
+	    $(BOARD_AVB_BOOT_ADD_HASH_FOOTER_ARGS), \
 	  $(call assert-max-image-size,$(INSTALLED_DEBUG_BOOTIMAGE_TARGET),$(BOARD_BOOTIMAGE_PARTITION_SIZE)))
 
 endif # TARGET_NO_KERNEL
diff --git a/core/binary.mk b/core/binary.mk
index 5d2f965..531e4c3 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -112,6 +112,8 @@
 my_ndk_sysroot :=
 my_ndk_sysroot_include :=
 my_ndk_sysroot_lib :=
+my_api_level := 10000
+
 ifneq ($(LOCAL_SDK_VERSION),)
   ifdef LOCAL_IS_HOST_MODULE
     $(error $(LOCAL_PATH): LOCAL_SDK_VERSION cannot be used in host module)
@@ -147,20 +149,14 @@
     my_ndk_api := $(call math_max,$(my_ndk_api),$(my_min_sdk_version))
   endif
 
-  my_ndk_api_def := $(my_ndk_api)
   my_ndk_hist_api := $(my_ndk_api)
   ifeq ($(my_ndk_api),current)
-    my_ndk_api_def := __ANDROID_API_FUTURE__
     # The last API level supported by the old prebuilt NDKs.
     my_ndk_hist_api := 24
+  else
+    my_api_level := $(my_ndk_api)
   endif
 
-
-  # Traditionally this has come from android/api-level.h, but with the libc
-  # headers unified it must be set by the build system since we don't have
-  # per-API level copies of that header now.
-  my_cflags += -D__ANDROID_API__=$(my_ndk_api_def)
-
   my_ndk_source_root := \
       $(HISTORICAL_NDK_VERSIONS_ROOT)/$(LOCAL_NDK_VERSION)/sources
   my_ndk_sysroot := \
@@ -283,14 +279,14 @@
 
 ifneq ($(LOCAL_USE_VNDK),)
   # Required VNDK version for vendor modules is BOARD_VNDK_VERSION.
-  my_vndk_version := $(BOARD_VNDK_VERSION)
-  ifeq ($(my_vndk_version),current)
+  my_api_level := $(BOARD_VNDK_VERSION)
+  ifeq ($(my_api_level),current)
     # Build with current PLATFORM_VNDK_VERSION.
     # If PLATFORM_VNDK_VERSION has a CODENAME, it will return
     # __ANDROID_API_FUTURE__.
-    my_vndk_version := $(call codename-or-sdk-to-sdk,$(PLATFORM_VNDK_VERSION))
+    my_api_level := $(call codename-or-sdk-to-sdk,$(PLATFORM_VNDK_VERSION))
   endif
-  my_cflags += -D__ANDROID_API__=$(my_vndk_version) -D__ANDROID_VNDK__
+  my_cflags += -D__ANDROID_VNDK__
 endif
 
 ifndef LOCAL_IS_HOST_MODULE
@@ -1625,6 +1621,16 @@
   my_target_global_ldflags := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)GLOBAL_LDFLAGS)
 endif # my_use_clang_lld
 
+my_target_triple := $($(LOCAL_2ND_ARCH_VAR_PREFIX)CLANG_$(my_prefix)TRIPLE)
+ifndef LOCAL_IS_HOST_MODULE
+  my_target_triple_flag := -target $(my_target_triple)$(my_api_level)
+else
+  my_target_triple_flag := -target $(my_target_triple)
+endif
+my_asflags += $(my_target_triple_flag)
+my_cflags += $(my_target_triple_flag)
+my_ldflags += $(my_target_triple_flag)
+
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_GLOBAL_C_INCLUDES := $(my_target_global_c_includes)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_GLOBAL_C_SYSTEM_INCLUDES := $(my_target_global_c_system_includes)
 $(LOCAL_INTERMEDIATE_TARGETS): PRIVATE_TARGET_GLOBAL_CFLAGS := $(my_target_global_cflags)
diff --git a/core/board_config.mk b/core/board_config.mk
index f7dc557..4045c71 100644
--- a/core/board_config.mk
+++ b/core/board_config.mk
@@ -193,20 +193,29 @@
 # Note that this assumes that the 2ND_CPU_ABI for a 64 bit target
 # is always 32 bits. If this isn't the case, these variables should
 # be overriden in the board configuration.
+#
+# Similarly, TARGET_NATIVE_BRIDGE_2ND_ABI for a 64 bit target is always
+# 32 bits. Note that all CPU_ABIs are preferred over all NATIVE_BRIDGE_ABIs.
+_target_native_bridge_abi_list_32_bit :=
+_target_native_bridge_abi_list_64_bit :=
+
 ifeq (,$(TARGET_CPU_ABI_LIST_64_BIT))
   ifeq (true|true,$(TARGET_IS_64_BIT)|$(TARGET_SUPPORTS_64_BIT_APPS))
     TARGET_CPU_ABI_LIST_64_BIT := $(TARGET_CPU_ABI) $(TARGET_CPU_ABI2)
+    _target_native_bridge_abi_list_64_bit := $(TARGET_NATIVE_BRIDGE_ABI)
   endif
 endif
 
 ifeq (,$(TARGET_CPU_ABI_LIST_32_BIT))
   ifneq (true,$(TARGET_IS_64_BIT))
     TARGET_CPU_ABI_LIST_32_BIT := $(TARGET_CPU_ABI) $(TARGET_CPU_ABI2)
+    _target_native_bridge_abi_list_32_bit := $(TARGET_NATIVE_BRIDGE_ABI)
   else
     ifeq (true,$(TARGET_SUPPORTS_32_BIT_APPS))
       # For a 64 bit target, assume that the 2ND_CPU_ABI
       # is a 32 bit ABI.
       TARGET_CPU_ABI_LIST_32_BIT := $(TARGET_2ND_CPU_ABI) $(TARGET_2ND_CPU_ABI2)
+      _target_native_bridge_abi_list_32_bit := $(TARGET_NATIVE_BRIDGE_2ND_ABI)
     endif
   endif
 endif
@@ -215,14 +224,21 @@
 # of preference) that the target supports. If a TARGET_CPU_ABI_LIST
 # is specified by the board configuration, we use that. If not, we
 # build a list out of the TARGET_CPU_ABIs specified by the config.
+# Add NATIVE_BRIDGE_ABIs at the end to keep order of preference.
 ifeq (,$(TARGET_CPU_ABI_LIST))
   ifeq ($(TARGET_IS_64_BIT)|$(TARGET_PREFER_32_BIT_APPS),true|true)
-    TARGET_CPU_ABI_LIST := $(TARGET_CPU_ABI_LIST_32_BIT) $(TARGET_CPU_ABI_LIST_64_BIT)
+    TARGET_CPU_ABI_LIST := $(TARGET_CPU_ABI_LIST_32_BIT) $(TARGET_CPU_ABI_LIST_64_BIT) \
+                           $(_target_native_bridge_abi_list_32_bit) $(_target_native_bridge_abi_list_64_bit)
   else
-    TARGET_CPU_ABI_LIST := $(TARGET_CPU_ABI_LIST_64_BIT) $(TARGET_CPU_ABI_LIST_32_BIT)
+    TARGET_CPU_ABI_LIST := $(TARGET_CPU_ABI_LIST_64_BIT) $(TARGET_CPU_ABI_LIST_32_BIT) \
+                           $(_target_native_bridge_abi_list_64_bit) $(_target_native_bridge_abi_list_32_bit)
   endif
 endif
 
+# Add NATIVE_BRIDGE_ABIs at the end of 32 and 64 bit CPU_ABIs to keep order of preference.
+TARGET_CPU_ABI_LIST_32_BIT += $(_target_native_bridge_abi_list_32_bit)
+TARGET_CPU_ABI_LIST_64_BIT += $(_target_native_bridge_abi_list_64_bit)
+
 # Strip whitespace from the ABI list string.
 TARGET_CPU_ABI_LIST := $(subst $(space),$(comma),$(strip $(TARGET_CPU_ABI_LIST)))
 TARGET_CPU_ABI_LIST_32_BIT := $(subst $(space),$(comma),$(strip $(TARGET_CPU_ABI_LIST_32_BIT)))
diff --git a/core/combo/TARGET_linux-mips.mk b/core/combo/TARGET_linux-mips.mk
index ba76969..9f14aa2 100644
--- a/core/combo/TARGET_linux-mips.mk
+++ b/core/combo/TARGET_linux-mips.mk
@@ -33,12 +33,6 @@
 TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT := mips32r2-fp
 endif
 
-TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_$(combo_2nd_arch_prefix)ARCH)/$(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT).mk
-ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),)
-$(error Unknown MIPS architecture variant: $(TARGET_$(combo_2nd_arch_prefix)ARCH_VARIANT))
-endif
-
-include $(TARGET_ARCH_SPECIFIC_MAKEFILE)
 include $(BUILD_SYSTEM)/combo/fdo.mk
 
 define $(combo_var_prefix)transform-shared-lib-to-toc
diff --git a/core/combo/TARGET_linux-mips64.mk b/core/combo/TARGET_linux-mips64.mk
index b498d1f..ae17e46 100644
--- a/core/combo/TARGET_linux-mips64.mk
+++ b/core/combo/TARGET_linux-mips64.mk
@@ -33,12 +33,6 @@
 TARGET_ARCH_VARIANT := mips64r6
 endif
 
-TARGET_ARCH_SPECIFIC_MAKEFILE := $(BUILD_COMBOS)/arch/$(TARGET_ARCH)/$(TARGET_ARCH_VARIANT).mk
-ifeq ($(strip $(wildcard $(TARGET_ARCH_SPECIFIC_MAKEFILE))),)
-$(error Unknown MIPS architecture variant: $(TARGET_ARCH_VARIANT))
-endif
-
-include $(TARGET_ARCH_SPECIFIC_MAKEFILE)
 include $(BUILD_SYSTEM)/combo/fdo.mk
 
 define $(combo_var_prefix)transform-shared-lib-to-toc
diff --git a/core/combo/arch/arm/armv7-a-neon.mk b/core/combo/arch/arm/armv7-a-neon.mk
index 01d2235..0c01ac3 100644
--- a/core/combo/arch/arm/armv7-a-neon.mk
+++ b/core/combo/arch/arm/armv7-a-neon.mk
@@ -1,7 +1,6 @@
 # Configuration for Linux on ARM.
 # Generating binaries for the ARMv7-a architecture and higher with NEON
 #
-ARCH_ARM_HAVE_ARMV7A            := true
 ARCH_ARM_HAVE_VFP               := true
 ARCH_ARM_HAVE_VFP_D32           := true
 ARCH_ARM_HAVE_NEON              := true
diff --git a/core/combo/arch/arm/armv8-2a.mk b/core/combo/arch/arm/armv8-2a.mk
index c1d8182..7e2ca18 100644
--- a/core/combo/arch/arm/armv8-2a.mk
+++ b/core/combo/arch/arm/armv8-2a.mk
@@ -3,7 +3,6 @@
 #
 # Many libraries are not aware of armv8-2a, and AArch32 is (almost) a superset
 # of armv7-a-neon. So just let them think we are just like v7.
-ARCH_ARM_HAVE_ARMV7A            := true
 ARCH_ARM_HAVE_VFP               := true
 ARCH_ARM_HAVE_VFP_D32           := true
 ARCH_ARM_HAVE_NEON              := true
diff --git a/core/combo/arch/arm/armv8-a.mk b/core/combo/arch/arm/armv8-a.mk
index 9ef5c49..19bc014 100644
--- a/core/combo/arch/arm/armv8-a.mk
+++ b/core/combo/arch/arm/armv8-a.mk
@@ -3,7 +3,6 @@
 #
 # Many libraries are not aware of armv8-a, and AArch32 is (almost) a superset
 # of armv7-a-neon. So just let them think we are just like v7.
-ARCH_ARM_HAVE_ARMV7A            := true
 ARCH_ARM_HAVE_VFP               := true
 ARCH_ARM_HAVE_VFP_D32           := true
 ARCH_ARM_HAVE_NEON              := true
diff --git a/core/combo/arch/mips/mips32-fp.mk b/core/combo/arch/mips/mips32-fp.mk
deleted file mode 100644
index 4b09bc1..0000000
--- a/core/combo/arch/mips/mips32-fp.mk
+++ /dev/null
@@ -1,5 +0,0 @@
-# Configuration for Android on MIPS.
-# Generating binaries for MIPS32/hard-float/little-endian
-
-ARCH_MIPS_HAS_FPU	:=true
-ARCH_HAVE_ALIGNED_DOUBLES :=true
diff --git a/core/combo/arch/mips/mips32r2-fp-xburst.mk b/core/combo/arch/mips/mips32r2-fp-xburst.mk
deleted file mode 100644
index 83fb12e..0000000
--- a/core/combo/arch/mips/mips32r2-fp-xburst.mk
+++ /dev/null
@@ -1,6 +0,0 @@
-# Configuration for Android on Ingenic xb4780/Xburst MIPS CPU.
-# Generating binaries for MIPS32R2/hard-float/little-endian without
-# support for the Madd family of instructions.
-
-ARCH_MIPS_HAS_FPU :=true
-ARCH_HAVE_ALIGNED_DOUBLES :=true
diff --git a/core/combo/arch/mips/mips32r2-fp.mk b/core/combo/arch/mips/mips32r2-fp.mk
deleted file mode 100644
index 97c14c3..0000000
--- a/core/combo/arch/mips/mips32r2-fp.mk
+++ /dev/null
@@ -1,5 +0,0 @@
-# Configuration for Android on MIPS.
-# Generating binaries for MIPS32R2/hard-float/little-endian
-
-ARCH_MIPS_HAS_FPU	:=true
-ARCH_HAVE_ALIGNED_DOUBLES :=true
diff --git a/core/combo/arch/mips/mips32r2dsp-fp.mk b/core/combo/arch/mips/mips32r2dsp-fp.mk
deleted file mode 100644
index 522b6b9..0000000
--- a/core/combo/arch/mips/mips32r2dsp-fp.mk
+++ /dev/null
@@ -1,7 +0,0 @@
-# Configuration for Android on MIPS.
-# Generating binaries for MIPS32R2/hard-float/little-endian/dsp
-
-ARCH_MIPS_HAS_DSP  	:=true
-ARCH_MIPS_DSP_REV	:=1
-ARCH_MIPS_HAS_FPU       :=true
-ARCH_HAVE_ALIGNED_DOUBLES :=true
diff --git a/core/combo/arch/mips/mips32r2dspr2-fp.mk b/core/combo/arch/mips/mips32r2dspr2-fp.mk
deleted file mode 100644
index 886d378..0000000
--- a/core/combo/arch/mips/mips32r2dspr2-fp.mk
+++ /dev/null
@@ -1,7 +0,0 @@
-# Configuration for Android on MIPS.
-# Generating binaries for MIPS32R2/hard-float/little-endian/dsp
-
-ARCH_MIPS_HAS_DSP  	:=true
-ARCH_MIPS_DSP_REV	:=2
-ARCH_MIPS_HAS_FPU       :=true
-ARCH_HAVE_ALIGNED_DOUBLES :=true
diff --git a/core/combo/arch/mips/mips32r6.mk b/core/combo/arch/mips/mips32r6.mk
deleted file mode 100644
index 7bc6cac..0000000
--- a/core/combo/arch/mips/mips32r6.mk
+++ /dev/null
@@ -1,4 +0,0 @@
-# Configuration for Android on MIPS.
-# Generating binaries for MIPS32R6/hard-float/little-endian
-
-ARCH_MIPS_REV6 := true
diff --git a/core/combo/arch/mips64/mips64r2.mk b/core/combo/arch/mips64/mips64r2.mk
deleted file mode 100644
index 54aa387..0000000
--- a/core/combo/arch/mips64/mips64r2.mk
+++ /dev/null
@@ -1,6 +0,0 @@
-# Configuration for Android on mips64r2.
-
-# This target is for temporary use only, until mips64r6 is supported by Android's qemu.
-
-ARCH_MIPS_HAS_FPU	:=true
-ARCH_HAVE_ALIGNED_DOUBLES :=true
diff --git a/core/combo/arch/mips64/mips64r6.mk b/core/combo/arch/mips64/mips64r6.mk
deleted file mode 100644
index 42d6c9e..0000000
--- a/core/combo/arch/mips64/mips64r6.mk
+++ /dev/null
@@ -1,3 +0,0 @@
-# Configuration for Android on mips64r6.
-
-ARCH_MIPS64_REV6 := true
diff --git a/core/combo/arch/x86/amberlake.mk b/core/combo/arch/x86/amberlake.mk
index 37100a4..a7ae6ed 100644
--- a/core/combo/arch/x86/amberlake.mk
+++ b/core/combo/arch/x86/amberlake.mk
@@ -3,11 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86/atom.mk b/core/combo/arch/x86/atom.mk
index 43a170c..bae7946 100644
--- a/core/combo/arch/x86/atom.mk
+++ b/core/combo/arch/x86/atom.mk
@@ -4,6 +4,3 @@
 #
 # See build/make/core/combo/arch/x86/x86.mk for differences.
 #
-ARCH_X86_HAVE_SSSE3 := true
-ARCH_X86_HAVE_MOVBE := true
-ARCH_X86_HAVE_POPCNT := false   # popcnt is not supported by current Atom CPUs
diff --git a/core/combo/arch/x86/broadwell.mk b/core/combo/arch/x86/broadwell.mk
index 37100a4..a7ae6ed 100644
--- a/core/combo/arch/x86/broadwell.mk
+++ b/core/combo/arch/x86/broadwell.mk
@@ -3,11 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86/haswell.mk b/core/combo/arch/x86/haswell.mk
index 50c27b4..ffa3bac 100644
--- a/core/combo/arch/x86/haswell.mk
+++ b/core/combo/arch/x86/haswell.mk
@@ -1,11 +1,4 @@
 # Configuration for Linux on x86.
 # Generating binaries for Haswell processors.
 #
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86/icelake.mk b/core/combo/arch/x86/icelake.mk
index 76fe212..a7ae6ed 100644
--- a/core/combo/arch/x86/icelake.mk
+++ b/core/combo/arch/x86/icelake.mk
@@ -3,12 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_AVX512 := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86/ivybridge.mk b/core/combo/arch/x86/ivybridge.mk
index 44035d8..a1358e6 100644
--- a/core/combo/arch/x86/ivybridge.mk
+++ b/core/combo/arch/x86/ivybridge.mk
@@ -1,11 +1,4 @@
 # Configuration for Linux on x86.
 # Generating binaries for Ivy Bridge processors.
 #
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := false
diff --git a/core/combo/arch/x86/kabylake.mk b/core/combo/arch/x86/kabylake.mk
index 50518d6..9906259 100644
--- a/core/combo/arch/x86/kabylake.mk
+++ b/core/combo/arch/x86/kabylake.mk
@@ -3,11 +3,4 @@
 # that support AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86/sandybridge.mk b/core/combo/arch/x86/sandybridge.mk
index a4c1bd9..d6552ab 100644
--- a/core/combo/arch/x86/sandybridge.mk
+++ b/core/combo/arch/x86/sandybridge.mk
@@ -1,11 +1,4 @@
 # Configuration for Linux on x86.
 # Generating binaries for SandyBridge processors.
 #
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := false
-ARCH_X86_HAVE_AVX    := false
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := false
diff --git a/core/combo/arch/x86/silvermont.mk b/core/combo/arch/x86/silvermont.mk
index cba1079..8ac2b98 100644
--- a/core/combo/arch/x86/silvermont.mk
+++ b/core/combo/arch/x86/silvermont.mk
@@ -4,10 +4,4 @@
 # See build/make/core/combo/arch/x86/x86-atom.mk for differences.
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86/skylake.mk b/core/combo/arch/x86/skylake.mk
index 03705c0..9906259 100644
--- a/core/combo/arch/x86/skylake.mk
+++ b/core/combo/arch/x86/skylake.mk
@@ -3,13 +3,4 @@
 # that support AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_AVX512 := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
-
diff --git a/core/combo/arch/x86/stoneyridge.mk b/core/combo/arch/x86/stoneyridge.mk
index 30405a1..05ff77a 100644
--- a/core/combo/arch/x86/stoneyridge.mk
+++ b/core/combo/arch/x86/stoneyridge.mk
@@ -1,12 +1,4 @@
 # Configuration for Linux on x86.
 # Generating binaries for Stoney Ridge processors.
 #
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86/tigerlake.mk b/core/combo/arch/x86/tigerlake.mk
index 76fe212..a7ae6ed 100644
--- a/core/combo/arch/x86/tigerlake.mk
+++ b/core/combo/arch/x86/tigerlake.mk
@@ -3,12 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_AVX512 := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86/whiskeylake.mk b/core/combo/arch/x86/whiskeylake.mk
index 37100a4..a7ae6ed 100644
--- a/core/combo/arch/x86/whiskeylake.mk
+++ b/core/combo/arch/x86/whiskeylake.mk
@@ -3,11 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86/x86.mk b/core/combo/arch/x86/x86.mk
index db55ff8..066f66a 100644
--- a/core/combo/arch/x86/x86.mk
+++ b/core/combo/arch/x86/x86.mk
@@ -8,9 +8,3 @@
 # These features are optional and shall not be included in the base platform
 # Otherwise, sdk_x86-eng system images might fail to run on some
 # developer machines.
-ARCH_X86_HAVE_SSSE3 := false
-ARCH_X86_HAVE_MOVBE := false
-ARCH_X86_HAVE_POPCNT := false
-ARCH_X86_HAVE_AVX := false
-ARCH_X86_HAVE_AVX2 := false
-ARCH_X86_HAVE_AVX512 := false
diff --git a/core/combo/arch/x86/x86_64.mk b/core/combo/arch/x86/x86_64.mk
index fc2a087..eff406b 100644
--- a/core/combo/arch/x86/x86_64.mk
+++ b/core/combo/arch/x86/x86_64.mk
@@ -4,9 +4,4 @@
 # The generic 'x86' variant cannot be used, since it resets some flags used
 # by the 'x86_64' variant.
 
-ARCH_X86_HAVE_SSSE3 := true
-ARCH_X86_HAVE_MOVBE := false # Only supported on Atom.
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_SSE4 := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
diff --git a/core/combo/arch/x86_64/amberlake.mk b/core/combo/arch/x86_64/amberlake.mk
index 37100a4..a7ae6ed 100644
--- a/core/combo/arch/x86_64/amberlake.mk
+++ b/core/combo/arch/x86_64/amberlake.mk
@@ -3,11 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86_64/broadwell.mk b/core/combo/arch/x86_64/broadwell.mk
index 37100a4..a7ae6ed 100644
--- a/core/combo/arch/x86_64/broadwell.mk
+++ b/core/combo/arch/x86_64/broadwell.mk
@@ -3,11 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86_64/haswell.mk b/core/combo/arch/x86_64/haswell.mk
index f9c6ebd..faf12fa 100644
--- a/core/combo/arch/x86_64/haswell.mk
+++ b/core/combo/arch/x86_64/haswell.mk
@@ -1,11 +1,4 @@
 # Configuration for Linux on x86_64.
 # Generating binaries for Haswell processors.
 #
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86_64/icelake.mk b/core/combo/arch/x86_64/icelake.mk
index 76fe212..a7ae6ed 100644
--- a/core/combo/arch/x86_64/icelake.mk
+++ b/core/combo/arch/x86_64/icelake.mk
@@ -3,12 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_AVX512 := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86_64/ivybridge.mk b/core/combo/arch/x86_64/ivybridge.mk
index 69011d6..464fa98 100644
--- a/core/combo/arch/x86_64/ivybridge.mk
+++ b/core/combo/arch/x86_64/ivybridge.mk
@@ -1,11 +1,4 @@
 # Configuration for Linux on x86_64.
 # Generating binaries for Ivy Bridge processors.
 #
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := false
diff --git a/core/combo/arch/x86_64/kabylake.mk b/core/combo/arch/x86_64/kabylake.mk
index 37100a4..a7ae6ed 100644
--- a/core/combo/arch/x86_64/kabylake.mk
+++ b/core/combo/arch/x86_64/kabylake.mk
@@ -3,11 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86_64/sandybridge.mk b/core/combo/arch/x86_64/sandybridge.mk
index 2092d19..a09db2a 100644
--- a/core/combo/arch/x86_64/sandybridge.mk
+++ b/core/combo/arch/x86_64/sandybridge.mk
@@ -1,11 +1,4 @@
 # Configuration for Linux on x86_64.
 # Generating binaries for SandyBridge processors.
 #
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := false
-ARCH_X86_HAVE_AVX    := false
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := false
diff --git a/core/combo/arch/x86_64/silvermont.mk b/core/combo/arch/x86_64/silvermont.mk
index cba1079..8ac2b98 100644
--- a/core/combo/arch/x86_64/silvermont.mk
+++ b/core/combo/arch/x86_64/silvermont.mk
@@ -4,10 +4,4 @@
 # See build/make/core/combo/arch/x86/x86-atom.mk for differences.
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86_64/skylake.mk b/core/combo/arch/x86_64/skylake.mk
index 76fe212..a7ae6ed 100644
--- a/core/combo/arch/x86_64/skylake.mk
+++ b/core/combo/arch/x86_64/skylake.mk
@@ -3,12 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_AVX512 := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86_64/stoneyridge.mk b/core/combo/arch/x86_64/stoneyridge.mk
index f7d9583..5950d9a 100644
--- a/core/combo/arch/x86_64/stoneyridge.mk
+++ b/core/combo/arch/x86_64/stoneyridge.mk
@@ -1,12 +1,4 @@
 # Configuration for Linux on x86_64.
 # Generating binaries for Stoney Ridge processors.
 #
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AES_NI := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86_64/tigerlake.mk b/core/combo/arch/x86_64/tigerlake.mk
index 76fe212..a7ae6ed 100644
--- a/core/combo/arch/x86_64/tigerlake.mk
+++ b/core/combo/arch/x86_64/tigerlake.mk
@@ -3,12 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_AVX512 := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86_64/whiskeylake.mk b/core/combo/arch/x86_64/whiskeylake.mk
index 37100a4..a7ae6ed 100644
--- a/core/combo/arch/x86_64/whiskeylake.mk
+++ b/core/combo/arch/x86_64/whiskeylake.mk
@@ -3,11 +3,4 @@
 # that have AVX2 feature flag
 #
 
-ARCH_X86_HAVE_SSSE3  := true
-ARCH_X86_HAVE_SSE4   := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX    := true
-ARCH_X86_HAVE_AVX2   := true
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_MOVBE  := true
diff --git a/core/combo/arch/x86_64/x86_64.mk b/core/combo/arch/x86_64/x86_64.mk
index e7c8928..17413c7 100755
--- a/core/combo/arch/x86_64/x86_64.mk
+++ b/core/combo/arch/x86_64/x86_64.mk
@@ -5,12 +5,4 @@
 # that are run in the emulator under KVM emulation (i.e. running directly on
 # the host development machine's CPU).
 
-ARCH_X86_HAVE_SSSE3 := true
-ARCH_X86_HAVE_MOVBE := false # Only supported on Atom.
-ARCH_X86_HAVE_POPCNT := true
-ARCH_X86_HAVE_SSE4 := true
 ARCH_X86_HAVE_SSE4_1 := true
-ARCH_X86_HAVE_SSE4_2 := true
-ARCH_X86_HAVE_AVX := false
-ARCH_X86_HAVE_AVX2 := false
-ARCH_X86_HAVE_AVX512 := false
diff --git a/core/config.mk b/core/config.mk
index 730e029..7e1475e 100644
--- a/core/config.mk
+++ b/core/config.mk
@@ -101,6 +101,23 @@
 $(KATI_obsolete_export It is a global setting. See $(CHANGES_URL)#export_keyword)
 $(KATI_obsolete_var BUILD_BROKEN_ANDROIDMK_EXPORTS)
 $(KATI_obsolete_var PRODUCT_STATIC_BOOT_CONTROL_HAL,Use shared library module instead. See $(CHANGES_URL)#PRODUCT_STATIC_BOOT_CONTROL_HAL)
+$(KATI_obsolete_var \
+  ARCH_ARM_HAVE_ARMV7A \
+  ARCH_DSP_REV \
+  ARCH_HAVE_ALIGNED_DOUBLES \
+  ARCH_MIPS_HAS_DSP \
+  ARCH_MIPS_HAS_FPU \
+  ARCH_MIPS_REV6 \
+  ARCH_X86_HAVE_AES_NI \
+  ARCH_X86_HAVE_AVX \
+  ARCH_X86_HAVE_AVX2 \
+  ARCH_X86_HAVE_AVX512 \
+  ARCH_X86_HAVE_MOVBE \
+  ARCH_X86_HAVE_POPCNT \
+  ARCH_X86_HAVE_SSE4 \
+  ARCH_X86_HAVE_SSE4_2 \
+  ARCH_X86_HAVE_SSSE3 \
+)
 
 # Used to force goals to build.  Only use for conditionally defined goals.
 .PHONY: FORCE
@@ -312,6 +329,7 @@
 ifeq ($(CALLED_FROM_SETUP),true)
 include $(BUILD_SYSTEM)/ccache.mk
 include $(BUILD_SYSTEM)/goma.mk
+include $(BUILD_SYSTEM)/rbe.mk
 endif
 
 ifdef TARGET_PREFER_32_BIT
@@ -466,7 +484,6 @@
 prebuilt_sdk_tools := prebuilts/sdk/tools
 prebuilt_sdk_tools_bin := $(prebuilt_sdk_tools)/$(HOST_OS)/bin
 
-# Always use prebuilts for ckati and makeparallel
 prebuilt_build_tools := prebuilts/build-tools
 prebuilt_build_tools_wrappers := prebuilts/build-tools/common/bin
 prebuilt_build_tools_jars := prebuilts/build-tools/common/framework
@@ -524,7 +541,6 @@
 FILESLIST := $(SOONG_HOST_OUT_EXECUTABLES)/fileslist
 FILESLIST_UTIL :=$= build/make/tools/fileslist_util.py
 HOST_INIT_VERIFIER := $(HOST_OUT_EXECUTABLES)/host_init_verifier
-MAKEPARALLEL := $(prebuilt_build_tools_bin)/makeparallel
 SOONG_JAVAC_WRAPPER := $(SOONG_HOST_OUT_EXECUTABLES)/soong_javac_wrapper
 SOONG_ZIP := $(SOONG_HOST_OUT_EXECUTABLES)/soong_zip
 MERGE_ZIPS := $(SOONG_HOST_OUT_EXECUTABLES)/merge_zips
diff --git a/core/config_sanitizers.mk b/core/config_sanitizers.mk
index 7a9f23e..2439f79 100644
--- a/core/config_sanitizers.mk
+++ b/core/config_sanitizers.mk
@@ -345,9 +345,6 @@
       my_shared_libraries := $($(LOCAL_2ND_ARCH_VAR_PREFIX)ADDRESS_SANITIZER_RUNTIME_LIBRARY) \
                              $(my_shared_libraries)
     endif
-    ifeq (,$(filter $(LOCAL_MODULE),$(ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES)))
-      my_static_libraries += $(ADDRESS_SANITIZER_CONFIG_EXTRA_STATIC_LIBRARIES)
-    endif
 
     # Do not add unnecessary dependency in shared libraries.
     ifeq ($(LOCAL_MODULE_CLASS),SHARED_LIBRARIES)
diff --git a/core/definitions.mk b/core/definitions.mk
index 0e0da9e..e44f51d 100644
--- a/core/definitions.mk
+++ b/core/definitions.mk
@@ -2444,8 +2444,16 @@
 	$(1) \
 	$(HOST_INIT_VERIFIER) \
 	$(HIDL_INHERITANCE_HIERARCHY) \
-	$(call intermediates-dir-for,ETC,passwd)/passwd
-	$(hide) $(HOST_INIT_VERIFIER) -p $(call intermediates-dir-for,ETC,passwd)/passwd -i $(HIDL_INHERITANCE_HIERARCHY) $$<
+	$(call intermediates-dir-for,ETC,passwd_system)/passwd_system \
+	$(call intermediates-dir-for,ETC,passwd_vendor)/passwd_vendor \
+	$(call intermediates-dir-for,ETC,passwd_odm)/passwd_odm \
+	$(call intermediates-dir-for,ETC,passwd_product)/passwd_product
+	$(hide) $(HOST_INIT_VERIFIER) \
+	  -p $(call intermediates-dir-for,ETC,passwd_system)/passwd_system \
+	  -p $(call intermediates-dir-for,ETC,passwd_vendor)/passwd_vendor \
+	  -p $(call intermediates-dir-for,ETC,passwd_odm)/passwd_odm \
+	  -p $(call intermediates-dir-for,ETC,passwd_product)/passwd_product \
+	  -i $(HIDL_INHERITANCE_HIERARCHY) $$<
 else
 $(2): $(1)
 endif
diff --git a/core/envsetup.mk b/core/envsetup.mk
index 05957cd..3e8fd3f 100644
--- a/core/envsetup.mk
+++ b/core/envsetup.mk
@@ -82,8 +82,6 @@
 
 # ---------------------------------------------------------------
 # The product defaults to generic on hardware
-# NOTE: This will be overridden in product_config.mk if make
-# was invoked with a PRODUCT-xxx-yyy goal.
 ifeq ($(TARGET_PRODUCT),)
 TARGET_PRODUCT := aosp_arm
 endif
@@ -94,6 +92,13 @@
 TARGET_BUILD_VARIANT := eng
 endif
 
+TARGET_BUILD_APPS ?=
+
+.KATI_READONLY := \
+  TARGET_PRODUCT \
+  TARGET_BUILD_VARIANT \
+  TARGET_BUILD_APPS
+
 # ---------------------------------------------------------------
 # Set up configuration for host machine.  We don't do cross-
 # compiles except for arm/mips, so the HOST is whatever we are
diff --git a/core/main.mk b/core/main.mk
index ff670dc..4e16c4a 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -10,22 +10,11 @@
 endif
 
 ifndef KATI
-
-host_prebuilts := linux-x86
-ifeq ($(shell uname),Darwin)
-host_prebuilts := darwin-x86
+$(warning Calling make directly is no longer supported.)
+$(warning Either use 'envsetup.sh; m' or 'build/soong/soong_ui.bash --make-mode')
+$(error done)
 endif
 
-.PHONY: run_soong_ui
-run_soong_ui:
-	+@prebuilts/build-tools/$(host_prebuilts)/bin/makeparallel --ninja build/soong/soong_ui.bash --make-mode $(MAKECMDGOALS)
-
-.PHONY: $(MAKECMDGOALS)
-$(sort $(MAKECMDGOALS)) : run_soong_ui
-	@#empty
-
-else # KATI
-
 $(info [1/1] initializing build system ...)
 
 # Absolute path of the present working direcotry.
@@ -194,6 +183,8 @@
 $(error stopping)
 endif
 
+# These are the valid values of TARGET_BUILD_VARIANT.
+INTERNAL_VALID_VARIANTS := user userdebug eng
 ifneq ($(filter-out $(INTERNAL_VALID_VARIANTS),$(TARGET_BUILD_VARIANT)),)
 $(info ***************************************************************)
 $(info ***************************************************************)
@@ -1244,6 +1235,7 @@
   libnativebridge.so \
   libnativehelper.so \
   libnativeloader.so \
+  libneuralnetworks.so \
   libnpt.so \
   libopenjdk.so \
   libopenjdkjvm.so \
@@ -1892,5 +1884,3 @@
 $(call dist-write-file,$(KATI_PACKAGE_MK_DIR)/dist.mk)
 
 $(info [$(call inc_and_print,subdir_makefiles_inc)/$(subdir_makefiles_total)] writing build rules ...)
-
-endif # KATI
diff --git a/core/misc_prebuilt_internal.mk b/core/misc_prebuilt_internal.mk
index cdd5cd5..cc2683c 100644
--- a/core/misc_prebuilt_internal.mk
+++ b/core/misc_prebuilt_internal.mk
@@ -27,3 +27,5 @@
 
 $(LOCAL_BUILT_MODULE) : $(my_prebuilt_src_file)
 	$(transform-prebuilt-to-target)
+
+built_module := $(LOCAL_BUILT_MODULE)
\ No newline at end of file
diff --git a/core/ninja_config.mk b/core/ninja_config.mk
index 694c696..b1f4b03 100644
--- a/core/ninja_config.mk
+++ b/core/ninja_config.mk
@@ -7,7 +7,7 @@
 KATI_OUTPUT_PATTERNS := $(OUT_DIR)/build%.ninja $(OUT_DIR)/ninja%.sh
 
 # Modifier goals we don't need to pass to Ninja.
-NINJA_EXCLUDE_GOALS := all APP-% PRODUCT-%
+NINJA_EXCLUDE_GOALS := all
 
 # A list of goals which affect parsing of makefiles and we need to pass to Kati.
 PARSE_TIME_MAKE_GOALS := \
@@ -55,7 +55,7 @@
 include $(wildcard vendor/*/build/ninja_config.mk)
 
 # Any Android goals that need to be built.
-ANDROID_GOALS := $(filter-out $(KATI_OUTPUT_PATTERNS) $(CKATI) $(MAKEPARALLEL),\
+ANDROID_GOALS := $(filter-out $(KATI_OUTPUT_PATTERNS),\
     $(sort $(ORIGINAL_MAKECMDGOALS) $(MAKECMDGOALS)))
 # Goals we need to pass to Ninja.
 NINJA_GOALS := $(filter-out $(NINJA_EXCLUDE_GOALS), $(ANDROID_GOALS))
diff --git a/core/product_config.mk b/core/product_config.mk
index 360c79d..1293c94 100644
--- a/core/product_config.mk
+++ b/core/product_config.mk
@@ -78,86 +78,18 @@
 endef
 
 # ---------------------------------------------------------------
-
-# These are the valid values of TARGET_BUILD_VARIANT.  Also, if anything else is passed
-# as the variant in the PRODUCT-$TARGET_BUILD_PRODUCT-$TARGET_BUILD_VARIANT form,
-# it will be treated as a goal, and the eng variant will be used.
-INTERNAL_VALID_VARIANTS := user userdebug eng
-
-# ---------------------------------------------------------------
-# Provide "PRODUCT-<prodname>-<goal>" targets, which lets you build
-# a particular configuration without needing to set up the environment.
-#
+# Check for obsolete PRODUCT- and APP- goals
 ifeq ($(CALLED_FROM_SETUP),true)
 product_goals := $(strip $(filter PRODUCT-%,$(MAKECMDGOALS)))
 ifdef product_goals
-  # Scrape the product and build names out of the goal,
-  # which should be of the form PRODUCT-<productname>-<buildname>.
-  #
-  ifneq ($(words $(product_goals)),1)
-    $(error Only one PRODUCT-* goal may be specified; saw "$(product_goals)")
-  endif
-  goal_name := $(product_goals)
-  product_goals := $(patsubst PRODUCT-%,%,$(product_goals))
-  product_goals := $(subst -, ,$(product_goals))
-  ifneq ($(words $(product_goals)),2)
-    $(error Bad PRODUCT-* goal "$(goal_name)")
-  endif
-
-  # The product they want
-  TARGET_PRODUCT := $(word 1,$(product_goals))
-
-  # The variant they want
-  TARGET_BUILD_VARIANT := $(word 2,$(product_goals))
-
-  ifeq ($(TARGET_BUILD_VARIANT),tests)
-    $(error "tests" has been deprecated as a build variant. Use it as a build goal instead.)
-  endif
-
-  # The build server wants to do make PRODUCT-dream-sdk
-  # which really means TARGET_PRODUCT=dream make sdk.
-  ifneq ($(filter-out $(INTERNAL_VALID_VARIANTS),$(TARGET_BUILD_VARIANT)),)
-    override MAKECMDGOALS := $(MAKECMDGOALS) $(TARGET_BUILD_VARIANT)
-    TARGET_BUILD_VARIANT := userdebug
-    default_goal_substitution :=
-  else
-    default_goal_substitution := droid
-  endif
-
-  # Replace the PRODUCT-* goal with the build goal that it refers to.
-  # Note that this will ensure that it appears in the same relative
-  # position, in case it matters.
-  override MAKECMDGOALS := $(patsubst $(goal_name),$(default_goal_substitution),$(MAKECMDGOALS))
+  $(error The PRODUCT-* goal is no longer supported. Use `TARGET_PRODUCT=<product> m droid` instead)
 endif
-endif # CALLED_FROM_SETUP
-# else: Use the value set in the environment or buildspec.mk.
-
-# ---------------------------------------------------------------
-# Provide "APP-<appname>" targets, which lets you build
-# an unbundled app.
-#
-ifeq ($(CALLED_FROM_SETUP),true)
 unbundled_goals := $(strip $(filter APP-%,$(MAKECMDGOALS)))
 ifdef unbundled_goals
-  ifneq ($(words $(unbundled_goals)),1)
-    $(error Only one APP-* goal may be specified; saw "$(unbundled_goals)")
-  endif
-  TARGET_BUILD_APPS := $(strip $(subst -, ,$(patsubst APP-%,%,$(unbundled_goals))))
-  ifneq ($(filter droid,$(MAKECMDGOALS)),)
-    override MAKECMDGOALS := $(patsubst $(unbundled_goals),,$(MAKECMDGOALS))
-  else
-    override MAKECMDGOALS := $(patsubst $(unbundled_goals),droid,$(MAKECMDGOALS))
-  endif
+  $(error The APP-* goal is no longer supported. Use `TARGET_BUILD_APPS="<app>" m droid` instead)
 endif # unbundled_goals
 endif
 
-# Now that we've parsed APP-* and PRODUCT-*, mark these as readonly
-TARGET_BUILD_APPS ?=
-.KATI_READONLY := \
-  TARGET_PRODUCT \
-  TARGET_BUILD_VARIANT \
-  TARGET_BUILD_APPS
-
 # Default to building dalvikvm on hosts that support it...
 ifeq ($(HOST_OS),linux)
 # ... or if the if the option is already set
diff --git a/core/rbe.mk b/core/rbe.mk
new file mode 100644
index 0000000..766b121
--- /dev/null
+++ b/core/rbe.mk
@@ -0,0 +1,32 @@
+#
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# Notice: this works only with Google's RBE service.
+ifneq ($(filter-out false,$(USE_RBE)),)
+  ifdef RBE_DIR
+    rbe_dir := $(RBE_DIR)
+  else
+    rbe_dir := $(HOME)/rbe
+  endif
+  RBE_WRAPPER := $(rbe_dir)/rewrapper
+
+  # Append rewrapper to existing *_WRAPPER variables so it's possible to
+  # use both ccache and rewrapper.
+  CC_WRAPPER := $(strip $(CC_WRAPPER) $(RBE_WRAPPER))
+  CXX_WRAPPER := $(strip $(CXX_WRAPPER) $(RBE_WRAPPER))
+
+  rbe_dir :=
+endif
diff --git a/core/soong_config.mk b/core/soong_config.mk
index eebe843..3e60a83 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -152,6 +152,7 @@
 $(call add_json_bool, MinimizeJavaDebugInfo,             $(filter true,$(PRODUCT_MINIMIZE_JAVA_DEBUG_INFO)))
 
 $(call add_json_bool, UseGoma,                           $(filter-out false,$(USE_GOMA)))
+$(call add_json_bool, UseRBE,                            $(filter-out false,$(USE_RBE)))
 $(call add_json_bool, Arc,                               $(filter true,$(TARGET_ARC)))
 
 $(call add_json_list, NamespacesToExport,                $(PRODUCT_SOONG_NAMESPACES))
diff --git a/target/product/base_product.mk b/target/product/base_product.mk
index 82557bf..749d2c2 100644
--- a/target/product/base_product.mk
+++ b/target/product/base_product.mk
@@ -16,7 +16,9 @@
 
 # Base modules and settings for the product partition.
 PRODUCT_PACKAGES += \
+    group_product \
     healthd \
     ModuleMetadata \
+    passwd_product \
     product_compatibility_matrix.xml \
     product_manifest.xml \
diff --git a/target/product/base_system.mk b/target/product/base_system.mk
index 162fbed..c256641 100644
--- a/target/product/base_system.mk
+++ b/target/product/base_system.mk
@@ -19,6 +19,9 @@
     abb \
     adbd \
     am \
+    android.hardware.neuralnetworks@1.0 \
+    android.hardware.neuralnetworks@1.1 \
+    android.hardware.neuralnetworks@1.2 \
     android.hidl.allocator@1.0-service \
     android.hidl.base-V1.0-java \
     android.hidl.manager-V1.0-java \
@@ -53,6 +56,7 @@
     com.android.conscrypt \
     com.android.location.provider \
     com.android.resolv \
+    com.android.neuralnetworks \
     com.android.tzdata \
     ContactsProvider \
     content \
@@ -77,6 +81,7 @@
     fsck_msdos \
     fs_config_files_system \
     fs_config_dirs_system \
+    group_system \
     gsid \
     heapprofd \
     heapprofd_client \
@@ -153,7 +158,6 @@
     libnetd_client \
     libnetlink \
     libnetutils \
-    libneuralnetworks \
     libOpenMAXAL \
     libOpenSLES \
     libpdfium \
@@ -210,6 +214,7 @@
     NetworkStack \
     org.apache.http.legacy \
     otacerts \
+    passwd_system \
     perfetto \
     ping \
     ping6 \
@@ -222,6 +227,7 @@
     resize2fs \
     rss_hwm_reset \
     run-as \
+    sanitizer.libraries.txt \
     schedtest \
     screencap \
     sdcard \
@@ -259,6 +265,8 @@
     viewcompiler \
     voip-common \
     vold \
+    vndkcore.libraries.txt \
+    vndkprivate.libraries.txt \
     WallpaperBackup \
     watchdogd \
     wificond \
diff --git a/target/product/base_vendor.mk b/target/product/base_vendor.mk
index bb39cd9..4233c1c 100644
--- a/target/product/base_vendor.mk
+++ b/target/product/base_vendor.mk
@@ -47,7 +47,8 @@
     fs_config_files_nonsystem \
     fs_config_dirs_nonsystem \
     gralloc.default \
-    group \
+    group_odm \
+    group_vendor \
     init_vendor \
     libashmemd_hidl_client \
     libbundlewrapper \
@@ -62,7 +63,8 @@
     libreverbwrapper \
     libril \
     libvisualizer \
-    passwd \
+    passwd_odm \
+    passwd_vendor \
     selinux_policy_nonsystem \
     shell_and_utilities_vendor \
     vndservice \
diff --git a/target/product/gsi/Android.mk b/target/product/gsi/Android.mk
index 5693234..1ef124b 100644
--- a/target/product/gsi/Android.mk
+++ b/target/product/gsi/Android.mk
@@ -38,6 +38,7 @@
 droidcore: check-vndk-list
 
 check-vndk-list-timestamp := $(call intermediates-dir-for,PACKAGING,vndk)/check-list-timestamp
+check-vndk-abi-dump-list-timestamp := $(call intermediates-dir-for,PACKAGING,vndk)/check-abi-dump-list-timestamp
 
 ifeq ($(TARGET_IS_64_BIT)|$(TARGET_2ND_ARCH),true|)
 # TODO(b/110429754) remove this condition when we support 64-bit-only device
@@ -50,6 +51,9 @@
 check-vndk-list: ;
 else
 check-vndk-list: $(check-vndk-list-timestamp)
+ifneq ($(SKIP_ABI_CHECKS),true)
+check-vndk-list: $(check-vndk-abi-dump-list-timestamp)
+endif
 endif
 
 _vndk_check_failure_message := " error: VNDK library list has been changed.\n"
@@ -97,12 +101,51 @@
 endif
 	@chmod a+x $@
 
+#####################################################################
+# Check that all ABI reference dumps have corresponding NDK/VNDK
+# libraries.
+
+# $(1): The directory containing ABI dumps.
+# Return a list of ABI dump paths ending with .so.lsdump.
+define find-abi-dump-paths
+$(if $(wildcard $(1)), \
+  $(addprefix $(1)/, \
+    $(call find-files-in-subdirs,$(1),"*.so.lsdump" -and -type f,.)))
+endef
+
+VNDK_ABI_DUMP_DIR := prebuilts/abi-dumps/vndk/$(PLATFORM_VNDK_VERSION)
+NDK_ABI_DUMP_DIR := prebuilts/abi-dumps/ndk/$(PLATFORM_VNDK_VERSION)
+VNDK_ABI_DUMPS := $(call find-abi-dump-paths,$(VNDK_ABI_DUMP_DIR))
+NDK_ABI_DUMPS := $(call find-abi-dump-paths,$(NDK_ABI_DUMP_DIR))
+
+$(check-vndk-abi-dump-list-timestamp): $(VNDK_ABI_DUMPS) $(NDK_ABI_DUMPS)
+	$(eval added_vndk_abi_dumps := $(strip $(sort $(filter-out \
+	  $(addsuffix .so.lsdump,$(VNDK_SAMEPROCESS_LIBRARIES) $(VNDK_CORE_LIBRARIES)), \
+	  $(notdir $(VNDK_ABI_DUMPS))))))
+	$(if $(added_vndk_abi_dumps), \
+	  echo -e "Found ABI reference dumps for non-VNDK libraries. Run \`find \$${ANDROID_BUILD_TOP}/$(VNDK_ABI_DUMP_DIR) '(' -name $(subst $(space), -or -name ,$(added_vndk_abi_dumps)) ')' -delete\` to delete the dumps.")
+
+	$(eval added_ndk_abi_dumps := $(strip $(sort $(filter-out \
+	  $(addsuffix .so.lsdump,$(NDK_MIGRATED_LIBS) $(LLNDK_LIBRARIES)), \
+	  $(notdir $(NDK_ABI_DUMPS))))))
+	$(if $(added_ndk_abi_dumps), \
+	  echo -e "Found ABI reference dumps for non-NDK libraries. Run \`find \$${ANDROID_BUILD_TOP}/$(NDK_ABI_DUMP_DIR) '(' -name $(subst $(space), -or -name ,$(added_ndk_abi_dumps)) ')' -delete\` to delete the dumps.")
+
+	$(if $(added_vndk_abi_dumps)$(added_ndk_abi_dumps),exit 1)
+	$(hide) mkdir -p $(dir $@)
+	$(hide) touch $@
+
+#####################################################################
+# VNDK package and snapshot.
+
 ifneq ($(BOARD_VNDK_VERSION),)
 
 include $(CLEAR_VARS)
 LOCAL_MODULE := vndk_package
+# Filter LLNDK libs moved to APEX to avoid pulling them into /system/LIB
 LOCAL_REQUIRED_MODULES := \
-    $(LLNDK_LIBRARIES)
+    $(filter-out $(LLNDK_MOVED_TO_APEX_LIBRARIES),$(LLNDK_LIBRARIES)))
+
 ifneq ($(TARGET_SKIP_CURRENT_VNDK),true)
 LOCAL_REQUIRED_MODULES += \
     llndk.libraries.txt \
diff --git a/target/product/gsi/current.txt b/target/product/gsi/current.txt
index e936d45..d954e9f 100644
--- a/target/product/gsi/current.txt
+++ b/target/product/gsi/current.txt
@@ -4,6 +4,7 @@
 LLNDK: libGLESv3.so
 LLNDK: libRS.so
 LLNDK: libandroid_net.so
+LLNDK: libbinder_ndk.so
 LLNDK: libc.so
 LLNDK: libcgrouprc.so
 LLNDK: libdl.so
@@ -194,7 +195,6 @@
 VNDK-core: libgui.so
 VNDK-core: libhardware_legacy.so
 VNDK-core: libhidlallocatorutils.so
-VNDK-core: libhidlcache.so
 VNDK-core: libjpeg.so
 VNDK-core: libkeymaster_messages.so
 VNDK-core: libkeymaster_portable.so
diff --git a/tools/check_builds.sh b/tools/check_builds.sh
deleted file mode 100644
index 7e4ea7c..0000000
--- a/tools/check_builds.sh
+++ /dev/null
@@ -1,92 +0,0 @@
-# Copyright (C) 2009 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the 'License');
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an 'AS IS' BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-#
-# Usage:
-#
-# Source this file into your environment.  Then:
-#
-#    $ golden_builds sdk-sdk generic-eng generic-userdebug dream-eng
-# 
-# will build a set of combos.  This might take a while.  Then you can
-# go make changes, and run:
-#
-#    $ check_builds sdk-sdk generic-eng generic-userdebug dream-eng
-#
-# Go get dinner, and when you get back, there will be a file
-# test-builds/sizes.html that has a pretty chart of which files are
-# in which tree, and how big they are.  In that chart, cells for files
-# that are missing are red, and rows where the file sizes are not all
-# the same will be blue.
-#
-
-TEST_BUILD_DIR=test-builds
-
-function do_builds
-{
-    PREFIX=$1
-    shift
-    while [ -n "$1" ]
-    do
-        rm -rf $TEST_BUILD_DIR/$PREFIX-$1
-        make PRODUCT-$(echo $1 | sed "s/-.*//" )-installclean
-        make -j16 PRODUCT-$1 dist DIST_DIR=$TEST_BUILD_DIR/$PREFIX-$1
-        if [ $? -ne 0 ] ; then
-            echo FAILED
-            return
-        fi
-        shift
-    done
-}
-
-function golden_builds
-{
-    rm -rf $TEST_BUILD_DIR/golden-* $TEST_BUILD_DIR/dist-*
-    do_builds golden "$@"
-}
-
-function compare_builds
-{
-    local inputs=
-    while [ -n "$1" ]
-    do
-        inputs="$inputs $TEST_BUILD_DIR/golden-$1/installed-files.txt"
-        inputs="$inputs $TEST_BUILD_DIR/dist-$1/installed-files.txt"
-        shift
-    done
-    build/make/tools/compare_fileslist.py $inputs > $TEST_BUILD_DIR/sizes.html
-}
-
-function check_builds
-{
-    rm -rf $TEST_BUILD_DIR/dist-*
-    do_builds dist "$@"
-    compare_builds "$@"
-}
-
-function diff_builds
-{
-    local inputs=
-    while [ -n "$1" ]
-    do
-        diff $TEST_BUILD_DIR/golden-$1/installed-files.txt $TEST_BUILD_DIR/dist-$1/installed-files.txt &> /dev/null
-        if [ $? != 0 ]; then
-            echo =========== $1 ===========
-            diff $TEST_BUILD_DIR/golden-$1/installed-files.txt $TEST_BUILD_DIR/dist-$1/installed-files.txt
-        fi
-        shift
-    done
-    build/make/tools/compare_fileslist.py $inputs > $TEST_BUILD_DIR/sizes.html
-}
-
diff --git a/tools/fs_config/Android.bp b/tools/fs_config/Android.bp
index d9a48d7..8c69417 100644
--- a/tools/fs_config/Android.bp
+++ b/tools/fs_config/Android.bp
@@ -20,7 +20,7 @@
         "soong-genrule",
     ],
     srcs: [
-        "fs_config.go"
+        "fs_config.go",
     ],
     pluginFor: ["soong_build"],
 }
@@ -56,13 +56,13 @@
     export_generated_headers: ["oemaids_header_gen"],
 }
 
-// Generate the vendor/etc/passwd text file for the target
-// This file may be empty if no AIDs are defined in
+// Generate the */etc/passwd text files for the target
+// These files may be empty if no AIDs are defined in
 // TARGET_FS_CONFIG_GEN files.
 genrule {
-    name: "passwd_gen",
+    name: "passwd_gen_system",
     tool_files: ["fs_config_generator.py"],
-    cmd: "$(location fs_config_generator.py) passwd --required-prefix=vendor_ --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
+    cmd: "$(location fs_config_generator.py) passwd --partition=system --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
     srcs: [
         ":target_fs_config_gen",
         ":android_filesystem_config_header",
@@ -71,18 +71,90 @@
 }
 
 prebuilt_etc {
-    name: "passwd",
-    vendor: true,
-    src: ":passwd_gen",
+    name: "passwd_system",
+    filename: "passwd",
+    src: ":passwd_gen_system",
 }
 
-// Generate the vendor/etc/group text file for the target
-// This file may be empty if no AIDs are defined in
+genrule {
+    name: "passwd_gen_vendor",
+    tool_files: ["fs_config_generator.py"],
+    cmd: "$(location fs_config_generator.py) passwd --partition=vendor --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
+    srcs: [
+        ":target_fs_config_gen",
+        ":android_filesystem_config_header",
+    ],
+    out: ["passwd"],
+}
+
+prebuilt_etc {
+    name: "passwd_vendor",
+    filename: "passwd",
+    vendor: true,
+    src: ":passwd_gen_vendor",
+}
+
+genrule {
+    name: "passwd_gen_odm",
+    tool_files: ["fs_config_generator.py"],
+    cmd: "$(location fs_config_generator.py) passwd --partition=odm --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
+    srcs: [
+        ":target_fs_config_gen",
+        ":android_filesystem_config_header",
+    ],
+    out: ["passwd"],
+}
+
+prebuilt_etc {
+    name: "passwd_odm",
+    filename: "passwd",
+    device_specific: true,
+    src: ":passwd_gen_odm",
+}
+
+genrule {
+    name: "passwd_gen_product",
+    tool_files: ["fs_config_generator.py"],
+    cmd: "$(location fs_config_generator.py) passwd --partition=product --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
+    srcs: [
+        ":target_fs_config_gen",
+        ":android_filesystem_config_header",
+    ],
+    out: ["passwd"],
+}
+
+prebuilt_etc {
+    name: "passwd_product",
+    filename: "passwd",
+    product_specific: true,
+    src: ":passwd_gen_product",
+}
+
+genrule {
+    name: "passwd_gen_system_ext",
+    tool_files: ["fs_config_generator.py"],
+    cmd: "$(location fs_config_generator.py) passwd --partition=system_ext --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
+    srcs: [
+        ":target_fs_config_gen",
+        ":android_filesystem_config_header",
+    ],
+    out: ["passwd"],
+}
+
+prebuilt_etc {
+    name: "passwd_system_ext",
+    filename: "passwd",
+    system_ext_specific: true,
+    src: ":passwd_gen_system_ext",
+}
+
+// Generate the */etc/group text files for the target
+// These files may be empty if no AIDs are defined in
 // TARGET_FS_CONFIG_GEN files.
 genrule {
-    name: "group_gen",
+    name: "group_gen_system",
     tool_files: ["fs_config_generator.py"],
-    cmd: "$(location fs_config_generator.py) group --required-prefix=vendor_ --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
+    cmd: "$(location fs_config_generator.py) group --partition=system --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
     srcs: [
         ":target_fs_config_gen",
         ":android_filesystem_config_header",
@@ -91,7 +163,79 @@
 }
 
 prebuilt_etc {
-    name: "group",
+    name: "group_system",
+    filename: "group",
+    src: ":group_gen_system",
+}
+
+genrule {
+    name: "group_gen_vendor",
+    tool_files: ["fs_config_generator.py"],
+    cmd: "$(location fs_config_generator.py) group --partition=vendor --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
+    srcs: [
+        ":target_fs_config_gen",
+        ":android_filesystem_config_header",
+    ],
+    out: ["group"],
+}
+
+prebuilt_etc {
+    name: "group_vendor",
+    filename: "group",
     vendor: true,
-    src: ":group_gen",
+    src: ":group_gen_vendor",
+}
+
+genrule {
+    name: "group_gen_odm",
+    tool_files: ["fs_config_generator.py"],
+    cmd: "$(location fs_config_generator.py) group --partition=odm --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
+    srcs: [
+        ":target_fs_config_gen",
+        ":android_filesystem_config_header",
+    ],
+    out: ["group"],
+}
+
+prebuilt_etc {
+    name: "group_odm",
+    filename: "group",
+    device_specific: true,
+    src: ":group_gen_odm",
+}
+
+genrule {
+    name: "group_gen_product",
+    tool_files: ["fs_config_generator.py"],
+    cmd: "$(location fs_config_generator.py) group --partition=product --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
+    srcs: [
+        ":target_fs_config_gen",
+        ":android_filesystem_config_header",
+    ],
+    out: ["group"],
+}
+
+prebuilt_etc {
+    name: "group_product",
+    filename: "group",
+    product_specific: true,
+    src: ":group_gen_product",
+}
+
+genrule {
+    name: "group_gen_system_ext",
+    tool_files: ["fs_config_generator.py"],
+    cmd: "$(location fs_config_generator.py) group --partition=system_ext --aid-header=$(location :android_filesystem_config_header) $(locations :target_fs_config_gen) >$(out)",
+    srcs: [
+        ":target_fs_config_gen",
+        ":android_filesystem_config_header",
+    ],
+    out: ["group"],
+}
+
+prebuilt_etc {
+    name: "group_system_ext",
+    filename: "group",
+    system_ext_specific: true,
+    src: ":group_gen_system_ext",
 }
diff --git a/tools/fs_config/fs_config_generator.py b/tools/fs_config/fs_config_generator.py
index 4400466..e1aafc9 100755
--- a/tools/fs_config/fs_config_generator.py
+++ b/tools/fs_config/fs_config_generator.py
@@ -312,13 +312,12 @@
         re.compile(r'%sUSER' % AID.PREFIX)
     ]
     _AID_DEFINE = re.compile(r'\s*#define\s+%s.*' % AID.PREFIX)
-    _OEM_START_KW = 'START'
-    _OEM_END_KW = 'END'
-    _OEM_RANGE = re.compile('%sOEM_RESERVED_[0-9]*_{0,1}(%s|%s)' %
-                            (AID.PREFIX, _OEM_START_KW, _OEM_END_KW))
+    _RESERVED_RANGE = re.compile(
+        r'#define AID_(.+)_RESERVED_\d*_*(START|END)\s+(\d+)')
+
     # AID lines cannot end with _START or _END, ie AID_FOO is OK
     # but AID_FOO_START is skiped. Note that AID_FOOSTART is NOT skipped.
-    _AID_SKIP_RANGE = ['_' + _OEM_START_KW, '_' + _OEM_END_KW]
+    _AID_SKIP_RANGE = ['_START', '_END']
     _COLLISION_OK = ['AID_APP', 'AID_APP_START', 'AID_USER', 'AID_USER_OFFSET']
 
     def __init__(self, aid_header):
@@ -330,7 +329,7 @@
         self._aid_header = aid_header
         self._aid_name_to_value = {}
         self._aid_value_to_name = {}
-        self._oem_ranges = {}
+        self._ranges = {}
 
         with open(aid_header) as open_file:
             self._parse(open_file)
@@ -355,6 +354,23 @@
                 return 'Error "{}" in file: "{}" on line: {}'.format(
                     msg, self._aid_header, str(lineno))
 
+            range_match = self._RESERVED_RANGE.match(line)
+            if range_match:
+                partition = range_match.group(1).lower()
+                value = int(range_match.group(3), 0)
+
+                if partition == 'oem':
+                    partition = 'vendor'
+
+                if partition in self._ranges:
+                    if isinstance(self._ranges[partition][-1], int):
+                        self._ranges[partition][-1] = (
+                            self._ranges[partition][-1], value)
+                    else:
+                        self._ranges[partition].append(value)
+                else:
+                    self._ranges[partition] = [value]
+
             if AIDHeaderParser._AID_DEFINE.match(line):
                 chunks = line.split()
                 identifier = chunks[1]
@@ -366,9 +382,7 @@
                     continue
 
                 try:
-                    if AIDHeaderParser._is_oem_range(identifier):
-                        self._handle_oem_range(identifier, value)
-                    elif not any(
+                    if not any(
                             identifier.endswith(x)
                             for x in AIDHeaderParser._AID_SKIP_RANGE):
                         self._handle_aid(identifier, value)
@@ -404,67 +418,6 @@
         self._aid_name_to_value[aid.friendly] = aid
         self._aid_value_to_name[value] = aid.friendly
 
-    def _handle_oem_range(self, identifier, value):
-        """Handle an OEM range C #define.
-
-        When encountering special AID defines, notably for the OEM ranges
-        this method handles sanity checking and adding them to the internal
-        maps. For internal use only.
-
-        Args:
-            identifier (str): The name of the #define identifier.
-                ie AID_OEM_RESERVED_START/END.
-            value (str): The value associated with the identifier.
-
-        Raises:
-            ValueError: With message set to indicate the error.
-        """
-
-        try:
-            int_value = int(value, 0)
-        except ValueError:
-            raise ValueError(
-                'Could not convert "%s" to integer value, got: "%s"' %
-                (identifier, value))
-
-        # convert AID_OEM_RESERVED_START or AID_OEM_RESERVED_<num>_START
-        # to AID_OEM_RESERVED or AID_OEM_RESERVED_<num>
-        is_start = identifier.endswith(AIDHeaderParser._OEM_START_KW)
-
-        if is_start:
-            tostrip = len(AIDHeaderParser._OEM_START_KW)
-        else:
-            tostrip = len(AIDHeaderParser._OEM_END_KW)
-
-        # ending _
-        tostrip = tostrip + 1
-
-        strip = identifier[:-tostrip]
-        if strip not in self._oem_ranges:
-            self._oem_ranges[strip] = []
-
-        if len(self._oem_ranges[strip]) > 2:
-            raise ValueError('Too many same OEM Ranges "%s"' % identifier)
-
-        if len(self._oem_ranges[strip]) == 1:
-            tmp = self._oem_ranges[strip][0]
-
-            if tmp == int_value:
-                raise ValueError('START and END values equal %u' % int_value)
-            elif is_start and tmp < int_value:
-                raise ValueError(
-                    'END value %u less than START value %u' % (tmp, int_value))
-            elif not is_start and tmp > int_value:
-                raise ValueError(
-                    'END value %u less than START value %u' % (int_value, tmp))
-
-        # Add START values to the head of the list and END values at the end.
-        # Thus, the list is ordered with index 0 as START and index 1 as END.
-        if is_start:
-            self._oem_ranges[strip].insert(0, int_value)
-        else:
-            self._oem_ranges[strip].append(int_value)
-
     def _process_and_check(self):
         """Process, check and populate internal data structures.
 
@@ -475,36 +428,32 @@
             ValueError: With the message set to indicate the specific error.
         """
 
-        # tuplefy the lists since range() does not like them mutable.
-        self._oem_ranges = [
-            AIDHeaderParser._convert_lst_to_tup(k, v)
-            for k, v in self._oem_ranges.iteritems()
-        ]
-
         # Check for overlapping ranges
-        for i, range1 in enumerate(self._oem_ranges):
-            for range2 in self._oem_ranges[i + 1:]:
-                if AIDHeaderParser._is_overlap(range1, range2):
-                    raise ValueError("Overlapping OEM Ranges found %s and %s" %
-                                     (str(range1), str(range2)))
+        for ranges in self._ranges.values():
+            for i, range1 in enumerate(ranges):
+                for range2 in ranges[i + 1:]:
+                    if AIDHeaderParser._is_overlap(range1, range2):
+                        raise ValueError(
+                            "Overlapping OEM Ranges found %s and %s" %
+                            (str(range1), str(range2)))
 
         # No core AIDs should be within any oem range.
         for aid in self._aid_value_to_name:
-
-            if Utils.in_any_range(aid, self._oem_ranges):
-                name = self._aid_value_to_name[aid]
-                raise ValueError(
-                    'AID "%s" value: %u within reserved OEM Range: "%s"' %
-                    (name, aid, str(self._oem_ranges)))
+            for ranges in self._ranges.values():
+                if Utils.in_any_range(aid, ranges):
+                    name = self._aid_value_to_name[aid]
+                    raise ValueError(
+                        'AID "%s" value: %u within reserved OEM Range: "%s"' %
+                        (name, aid, str(ranges)))
 
     @property
-    def oem_ranges(self):
+    def ranges(self):
         """Retrieves the OEM closed ranges as a list of tuples.
 
         Returns:
             A list of closed range tuples: [ (0, 42), (50, 105) ... ]
         """
-        return self._oem_ranges
+        return self._ranges
 
     @property
     def aids(self):
@@ -516,39 +465,6 @@
         return self._aid_name_to_value.values()
 
     @staticmethod
-    def _convert_lst_to_tup(name, lst):
-        """Converts a mutable list to a non-mutable tuple.
-
-        Used ONLY for ranges and thus enforces a length of 2.
-
-        Args:
-            lst (List): list that should be "tuplefied".
-
-        Raises:
-            ValueError if lst is not a list or len is not 2.
-
-        Returns:
-            Tuple(lst)
-        """
-        if not lst or len(lst) != 2:
-            raise ValueError('Mismatched range for "%s"' % name)
-
-        return tuple(lst)
-
-    @staticmethod
-    def _is_oem_range(aid):
-        """Detects if a given aid is within the reserved OEM range.
-
-        Args:
-            aid (int): The aid to test
-
-        Returns:
-            True if it is within the range, False otherwise.
-        """
-
-        return AIDHeaderParser._OEM_RANGE.match(aid)
-
-    @staticmethod
     def _is_overlap(range_a, range_b):
         """Calculates the overlap of two range tuples.
 
@@ -588,12 +504,12 @@
     _SECTIONS = [('_handle_aid', ('value', )),
                  ('_handle_path', ('mode', 'user', 'group', 'caps'))]
 
-    def __init__(self, config_files, oem_ranges):
+    def __init__(self, config_files, ranges):
         """
         Args:
             config_files ([str]): The list of config.fs files to parse.
                 Note the filename is not important.
-            oem_ranges ([(),()]): range tuples indicating reserved OEM ranges.
+            ranges ({str,[()]): Dictionary of partitions and a list of tuples that correspond to their ranges
         """
 
         self._files = []
@@ -604,7 +520,7 @@
         # (name to file, value to aid)
         self._seen_aids = ({}, {})
 
-        self._oem_ranges = oem_ranges
+        self._ranges = ranges
 
         self._config_files = config_files
 
@@ -669,6 +585,27 @@
             # within the generated file.
             self._aids.sort(key=lambda item: item.normalized_value)
 
+    def _verify_valid_range(self, aid):
+        """Verified an AID entry is in a valid range"""
+
+        ranges = None
+
+        partitions = self._ranges.keys()
+        partitions.sort(key=len, reverse=True)
+        for partition in partitions:
+            if aid.friendly.startswith(partition):
+                ranges = self._ranges[partition]
+                break
+
+        if ranges is None:
+            sys.exit('AID "%s" must be prefixed with a partition name' %
+                     aid.friendly)
+
+        if not Utils.in_any_range(int(aid.value, 0), ranges):
+            emsg = '"value" for aid "%s" not in valid range %s, got: %s'
+            emsg = emsg % (aid.friendly, str(ranges), aid.value)
+            sys.exit(emsg)
+
     def _handle_aid(self, file_name, section_name, config):
         """Verifies an AID entry and adds it to the aid list.
 
@@ -702,15 +639,11 @@
             sys.exit(error_message('Found specified but unset "value"'))
 
         try:
-            aid = AID(section_name, value, file_name, '/vendor/bin/sh')
+            aid = AID(section_name, value, file_name, '/bin/sh')
         except ValueError as exception:
             sys.exit(error_message(exception))
 
-        # Values must be within OEM range
-        if not Utils.in_any_range(int(aid.value, 0), self._oem_ranges):
-            emsg = '"value" not in valid range %s, got: %s'
-            emsg = emsg % (str(self._oem_ranges), value)
-            sys.exit(error_message(emsg))
+        self._verify_valid_range(aid)
 
         # use the normalized int value in the dict and detect
         # duplicate definitions of the same value
@@ -1000,7 +933,7 @@
             args['capability_header'])
         self._base_parser = AIDHeaderParser(args['aid_header'])
         self._oem_parser = FSConfigFileParser(args['fsconfig'],
-                                              self._base_parser.oem_ranges)
+                                              self._base_parser.ranges)
 
         self._partition = args['partition']
         self._all_partitions = args['all_partitions']
@@ -1265,7 +1198,7 @@
 
         hdr_parser = AIDHeaderParser(args['aid_header'])
 
-        parser = FSConfigFileParser(args['fsconfig'], hdr_parser.oem_ranges)
+        parser = FSConfigFileParser(args['fsconfig'], hdr_parser.ranges)
 
         print OEMAidGen._GENERATED
 
@@ -1313,17 +1246,19 @@
             'to parse AIDs and OEM Ranges from')
 
         opt_group.add_argument(
-            '--required-prefix',
-            required=False,
-            help='A prefix that the names are required to contain.')
+            '--partition',
+            required=True,
+            help=
+            'Filter the input file and only output entries for the given partition.'
+        )
 
     def __call__(self, args):
 
         hdr_parser = AIDHeaderParser(args['aid_header'])
 
-        parser = FSConfigFileParser(args['fsconfig'], hdr_parser.oem_ranges)
+        parser = FSConfigFileParser(args['fsconfig'], hdr_parser.ranges)
 
-        required_prefix = args['required_prefix']
+        filter_partition = args['partition']
 
         aids = parser.aids
 
@@ -1331,13 +1266,22 @@
         if not aids:
             return
 
+        aids_by_partition = {}
+        partitions = hdr_parser.ranges.keys()
+        partitions.sort(key=len, reverse=True)
+
         for aid in aids:
-            if required_prefix is None or aid.friendly.startswith(
-                    required_prefix):
+            for partition in partitions:
+                if aid.friendly.startswith(partition):
+                    if partition in aids_by_partition:
+                        aids_by_partition[partition].append(aid)
+                    else:
+                        aids_by_partition[partition] = [aid]
+                    break
+
+        if filter_partition in aids_by_partition:
+            for aid in aids_by_partition[filter_partition]:
                 self._print_formatted_line(aid)
-            else:
-                sys.exit("%s: AID '%s' must start with '%s'" %
-                         (args['fsconfig'], aid.friendly, required_prefix))
 
     def _print_formatted_line(self, aid):
         """Prints the aid to stdout in the passwd format. Internal use only.
diff --git a/tools/makeparallel/.gitignore b/tools/makeparallel/.gitignore
deleted file mode 100644
index a7d6181..0000000
--- a/tools/makeparallel/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-makeparallel
-*.o
-*.d
-test.out
diff --git a/tools/makeparallel/Android.bp b/tools/makeparallel/Android.bp
deleted file mode 100644
index 898db68..0000000
--- a/tools/makeparallel/Android.bp
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2016 Google Inc. All rights reserved
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-cc_binary_host {
-    name: "makeparallel",
-    srcs: [
-        "makeparallel.cpp",
-    ],
-    cflags: ["-Wall", "-Werror"],
-}
diff --git a/tools/makeparallel/Makefile b/tools/makeparallel/Makefile
deleted file mode 100644
index 82a4abf..0000000
--- a/tools/makeparallel/Makefile
+++ /dev/null
@@ -1,93 +0,0 @@
-# Copyright 2015 Google Inc. All rights reserved
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-# Find source file location from path to this Makefile
-MAKEPARALLEL_SRC_PATH := $(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
-ifndef MAKEPARALLEL_SRC_PATH
-  MAKEPARALLEL_SRC_PATH := .
-endif
-
-# Set defaults if they weren't set by the including Makefile
-MAKEPARALLEL_CXX ?= $(CXX)
-MAKEPARALLEL_LD ?= $(CXX)
-MAKEPARALLEL_INTERMEDIATES_PATH ?= .
-MAKEPARALLEL_BIN_PATH ?= .
-
-MAKEPARALLEL_CXX_SRCS := \
-	makeparallel.cpp
-
-MAKEPARALLEL_CXXFLAGS := -Wall -Werror -MMD -MP
-
-MAKEPARALLEL_CXX_SRCS := $(addprefix $(MAKEPARALLEL_SRC_PATH)/,\
-	$(MAKEPARALLEL_CXX_SRCS))
-
-MAKEPARALLEL_CXX_OBJS := $(patsubst $(MAKEPARALLEL_SRC_PATH)/%.cpp,$(MAKEPARALLEL_INTERMEDIATES_PATH)/%.o,$(MAKEPARALLEL_CXX_SRCS))
-
-MAKEPARALLEL := $(MAKEPARALLEL_BIN_PATH)/makeparallel
-
-ifeq ($(shell uname),Linux)
-MAKEPARALLEL_LIBS := -lrt -lpthread
-endif
-
-# Rule to build makeparallel into MAKEPARALLEL_BIN_PATH
-$(MAKEPARALLEL): $(MAKEPARALLEL_CXX_OBJS)
-	@mkdir -p $(dir $@)
-	$(MAKEPARALLEL_LD) -std=c++11 $(MAKEPARALLEL_CXXFLAGS) -o $@ $^ $(MAKEPARALLEL_LIBS)
-
-# Rule to build source files into object files in MAKEPARALLEL_INTERMEDIATES_PATH
-$(MAKEPARALLEL_CXX_OBJS): $(MAKEPARALLEL_INTERMEDIATES_PATH)/%.o: $(MAKEPARALLEL_SRC_PATH)/%.cpp
-	@mkdir -p $(dir $@)
-	$(MAKEPARALLEL_CXX) -c -std=c++11 $(MAKEPARALLEL_CXXFLAGS) -o $@ $<
-
-makeparallel_clean:
-	rm -rf $(MAKEPARALLEL)
-	rm -rf $(MAKEPARALLEL_INTERMEDIATES_PATH)/*.o
-	rm -rf $(MAKEPARALLEL_INTERMEDIATES_PATH)/*.d
-
-.PHONY: makeparallel_clean
-
--include $(MAKEPARALLEL_INTERMEDIATES_PATH)/*.d
-
-.PHONY: makeparallel_test
-MAKEPARALLEL_TEST := MAKEFLAGS= MAKELEVEL= MAKEPARALLEL=$(MAKEPARALLEL) $(MAKE) -f Makefile.test test
-MAKEPARALLEL_NINJA_TEST := MAKEFLAGS= MAKELEVEL= MAKEPARALLEL="$(MAKEPARALLEL) --ninja" $(MAKE) -f Makefile.test test
-makeparallel_test: $(MAKEPARALLEL)
-	@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -j1234
-	@EXPECTED="-j123"  $(MAKEPARALLEL_TEST) -j123
-	@EXPECTED=""       $(MAKEPARALLEL_TEST) -j1
-	@EXPECTED="-j$$(($$(nproc) + 2))"   $(MAKEPARALLEL_TEST) -j
-	@EXPECTED=""       $(MAKEPARALLEL_TEST)
-
-	@EXPECTED="-j1234" $(MAKEPARALLEL_NINJA_TEST) -j1234
-	@EXPECTED="-j123"  $(MAKEPARALLEL_NINJA_TEST) -j123
-	@EXPECTED="-j1"    $(MAKEPARALLEL_NINJA_TEST) -j1
-	@EXPECTED="-j1"    $(MAKEPARALLEL_NINJA_TEST)
-	@EXPECTED=""       $(MAKEPARALLEL_NINJA_TEST) -j
-	@EXPECTED=""       $(MAKEPARALLEL_NINJA_TEST) -j -l
-
-	@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) --no-print-directory -j1234
-	@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) --no-print-directory -k -j1234
-	@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -k -j1234
-	@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -j1234 -k
-	@EXPECTED="-j1234" $(MAKEPARALLEL_TEST) -kt -j1234
-
-	@EXPECTED="-j1234"     $(MAKEPARALLEL_NINJA_TEST) --no-print-directory -j1234
-	@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) --no-print-directory -k -j1234
-	@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) -k -j1234
-	@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) -j1234 -k
-	@EXPECTED="-j1234 -k0" $(MAKEPARALLEL_NINJA_TEST) -kt -j1234
-
-	@EXPECTED=""       $(MAKEPARALLEL_TEST) A=-j1234
-
-	@EXPECTED="-j1234 args" ARGS="args" $(MAKEPARALLEL_TEST) -j1234
diff --git a/tools/makeparallel/Makefile.test b/tools/makeparallel/Makefile.test
deleted file mode 100644
index cf53684..0000000
--- a/tools/makeparallel/Makefile.test
+++ /dev/null
@@ -1,12 +0,0 @@
-MAKEPARALLEL ?= ./makeparallel
-
-.PHONY: test
-test:
-	@+echo MAKEFLAGS=$${MAKEFLAGS};              \
-	result=$$($(MAKEPARALLEL) echo $(ARGS));     \
-	echo result: $${result};                     \
-	if [ "$${result}" = "$(EXPECTED)" ]; then    \
-	  echo SUCCESS && echo;                      \
-	else                                         \
-	  echo FAILED expected $(EXPECTED) && false; \
-	fi
diff --git a/tools/makeparallel/README.md b/tools/makeparallel/README.md
deleted file mode 100644
index 2e5fbf9..0000000
--- a/tools/makeparallel/README.md
+++ /dev/null
@@ -1,54 +0,0 @@
-<!---
-Copyright (C) 2015 The Android Open Source Project
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-     http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
--->
-
-makeparallel
-============
-makeparallel communicates with the [GNU make jobserver](http://make.mad-scientist.net/papers/jobserver-implementation/)
-in order claim all available jobs, and then passes the number of jobs
-claimed to a subprocess with `-j<jobs>`.
-
-The number of available jobs is determined by reading tokens from the jobserver
-until a read would block.  If the makeparallel rule is the only one running the
-number of jobs will be the total size of the jobserver pool, i.e. the value
-passed to make with `-j`.  Any jobs running in parallel with with the
-makeparellel rule will reduce the measured value, and thus reduce the
-parallelism available to the subprocess.
-
-To run a multi-thread or multi-process binary inside GNU make using
-makeparallel, add
-```Makefile
-	+makeparallel subprocess arguments
-```
-to a rule.  For example, to wrap ninja in make, use something like:
-```Makefile
-	+makeparallel ninja -f build.ninja
-```
-
-To determine the size of the jobserver pool, add
-```Makefile
-	+makeparallel echo > make.jobs
-```
-to a rule that is guarantee to run alone (i.e. all other rules are either
-dependencies of the makeparallel rule, or the depend on the makeparallel
-rule.  The output file will contain the `-j<num>` flag passed to the parent
-make process, or `-j1` if no flag was found.  Since GNU make will run
-makeparallel during the execution phase, after all variables have been
-set and evaluated, it is not possible to get the output of makeparallel
-into a make variable.  Instead, use a shell substitution to read the output
-file directly in a recipe.  For example:
-```Makefile
-	echo Make was started with $$(cat make.jobs)
-```
diff --git a/tools/makeparallel/makeparallel.cpp b/tools/makeparallel/makeparallel.cpp
deleted file mode 100644
index 66babdf..0000000
--- a/tools/makeparallel/makeparallel.cpp
+++ /dev/null
@@ -1,421 +0,0 @@
-// Copyright (C) 2015 The Android Open Source Project
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// makeparallel communicates with the GNU make jobserver
-// (http://make.mad-scientist.net/papers/jobserver-implementation/)
-// in order claim all available jobs, and then passes the number of jobs
-// claimed to a subprocess with -j<jobs>.
-
-#include <errno.h>
-#include <fcntl.h>
-#include <getopt.h>
-#include <poll.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/resource.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-
-#include <string>
-#include <vector>
-
-#ifdef __linux__
-#include <error.h>
-#endif
-
-#ifdef __APPLE__
-#include <err.h>
-#define error(code, eval, fmt, ...) errc(eval, code, fmt, ##__VA_ARGS__)
-// Darwin does not interrupt syscalls by default.
-#define TEMP_FAILURE_RETRY(exp) (exp)
-#endif
-
-// Throw an error if fd is not valid.
-static void CheckFd(int fd) {
-  int ret = fcntl(fd, F_GETFD);
-  if (ret < 0) {
-    if (errno == EBADF) {
-      error(errno, 0, "no jobserver pipe, prefix recipe command with '+'");
-    } else {
-      error(errno, errno, "fnctl failed");
-    }
-  }
-}
-
-// Extract flags from MAKEFLAGS that need to be propagated to subproccess
-static std::vector<std::string> ReadMakeflags() {
-  std::vector<std::string> args;
-
-  const char* makeflags_env = getenv("MAKEFLAGS");
-  if (makeflags_env == nullptr) {
-    return args;
-  }
-
-  // The MAKEFLAGS format is pretty useless.  The first argument might be empty
-  // (starts with a leading space), or it might be a set of one-character flags
-  // merged together with no leading space, or it might be a variable
-  // definition.
-
-  std::string makeflags = makeflags_env;
-
-  // Split makeflags into individual args on spaces.  Multiple spaces are
-  // elided, but an initial space will result in a blank arg.
-  size_t base = 0;
-  size_t found;
-  do {
-    found = makeflags.find_first_of(" ", base);
-    args.push_back(makeflags.substr(base, found - base));
-    base = found + 1;
-  } while (found != makeflags.npos);
-
-  // Drop the first argument if it is empty
-  while (args.size() > 0 && args[0].size() == 0) {
-	  args.erase(args.begin());
-  }
-
-  // Prepend a - to the first argument if it does not have one and is not a
-  // variable definition
-  if (args.size() > 0 && args[0][0] != '-') {
-    if (args[0].find('=') == makeflags.npos) {
-      args[0] = '-' + args[0];
-    }
-  }
-
-  return args;
-}
-
-static bool ParseMakeflags(std::vector<std::string>& args,
-    int* in_fd, int* out_fd, bool* parallel, bool* keep_going) {
-
-  std::vector<char*> getopt_argv;
-  // getopt starts reading at argv[1]
-  getopt_argv.reserve(args.size() + 1);
-  getopt_argv.push_back(strdup(""));
-  for (std::string& v : args) {
-    getopt_argv.push_back(strdup(v.c_str()));
-  }
-
-  opterr = 0;
-  optind = 1;
-  while (1) {
-    const static option longopts[] = {
-        {"jobserver-fds", required_argument, 0, 0},
-        {0, 0, 0, 0},
-    };
-    int longopt_index = 0;
-
-    int c = getopt_long(getopt_argv.size(), getopt_argv.data(), "kj",
-        longopts, &longopt_index);
-
-    if (c == -1) {
-      break;
-    }
-
-    switch (c) {
-    case 0:
-      switch (longopt_index) {
-      case 0:
-      {
-        // jobserver-fds
-        if (sscanf(optarg, "%d,%d", in_fd, out_fd) != 2) {
-          error(EXIT_FAILURE, 0, "incorrect format for --jobserver-fds: %s", optarg);
-        }
-        // TODO: propagate in_fd, out_fd
-        break;
-      }
-      default:
-        abort();
-      }
-      break;
-    case 'j':
-      *parallel = true;
-      break;
-    case 'k':
-      *keep_going = true;
-      break;
-    case '?':
-      // ignore unknown arguments
-      break;
-    default:
-      abort();
-    }
-  }
-
-  for (char *v : getopt_argv) {
-    free(v);
-  }
-
-  return true;
-}
-
-// Read a single byte from fd, with timeout in milliseconds.  Returns true if
-// a byte was read, false on timeout.  Throws away the read value.
-// Non-reentrant, uses timer and signal handler global state, plus static
-// variable to communicate with signal handler.
-//
-// Uses a SIGALRM timer to fire a signal after timeout_ms that will interrupt
-// the read syscall if it hasn't yet completed.  If the timer fires before the
-// read the read could block forever, so read from a dup'd fd and close it from
-// the signal handler, which will cause the read to return EBADF if it occurs
-// after the signal.
-// The dup/read/close combo is very similar to the system described to avoid
-// a deadlock between SIGCHLD and read at
-// http://make.mad-scientist.net/papers/jobserver-implementation/
-static bool ReadByteTimeout(int fd, int timeout_ms) {
-  // global variable to communicate with the signal handler
-  static int dup_fd = -1;
-
-  // dup the fd so the signal handler can close it without losing the real one
-  dup_fd = dup(fd);
-  if (dup_fd < 0) {
-    error(errno, errno, "dup failed");
-  }
-
-  // set up a signal handler that closes dup_fd on SIGALRM
-  struct sigaction action = {};
-  action.sa_flags = SA_SIGINFO,
-  action.sa_sigaction = [](int, siginfo_t*, void*) {
-    close(dup_fd);
-  };
-  struct sigaction oldaction = {};
-  int ret = sigaction(SIGALRM, &action, &oldaction);
-  if (ret < 0) {
-    error(errno, errno, "sigaction failed");
-  }
-
-  // queue a SIGALRM after timeout_ms
-  const struct itimerval timeout = {{}, {0, timeout_ms * 1000}};
-  ret = setitimer(ITIMER_REAL, &timeout, NULL);
-  if (ret < 0) {
-    error(errno, errno, "setitimer failed");
-  }
-
-  // start the blocking read
-  char buf;
-  int read_ret = read(dup_fd, &buf, 1);
-  int read_errno = errno;
-
-  // cancel the alarm in case it hasn't fired yet
-  const struct itimerval cancel = {};
-  ret = setitimer(ITIMER_REAL, &cancel, NULL);
-  if (ret < 0) {
-    error(errno, errno, "reset setitimer failed");
-  }
-
-  // remove the signal handler
-  ret = sigaction(SIGALRM, &oldaction, NULL);
-  if (ret < 0) {
-    error(errno, errno, "reset sigaction failed");
-  }
-
-  // clean up the dup'd fd in case the signal never fired
-  close(dup_fd);
-  dup_fd = -1;
-
-  if (read_ret == 0) {
-    error(EXIT_FAILURE, 0, "EOF on jobserver pipe");
-  } else if (read_ret > 0) {
-    return true;
-  } else if (read_errno == EINTR || read_errno == EBADF) {
-    return false;
-  } else {
-    error(read_errno, read_errno, "read failed");
-  }
-  abort();
-}
-
-// Measure the size of the jobserver pool by reading from in_fd until it blocks
-static int GetJobserverTokens(int in_fd) {
-  int tokens = 0;
-  pollfd pollfds[] = {{in_fd, POLLIN, 0}};
-  int ret;
-  while ((ret = TEMP_FAILURE_RETRY(poll(pollfds, 1, 0))) != 0) {
-    if (ret < 0) {
-      error(errno, errno, "poll failed");
-    } else if (pollfds[0].revents != POLLIN) {
-      error(EXIT_FAILURE, 0, "unexpected event %d\n", pollfds[0].revents);
-    }
-
-    // There is probably a job token in the jobserver pipe.  There is a chance
-    // another process reads it first, which would cause a blocking read to
-    // block forever (or until another process put a token back in the pipe).
-    // The file descriptor can't be set to O_NONBLOCK as that would affect
-    // all users of the pipe, including the parent make process.
-    // ReadByteTimeout emulates a non-blocking read on a !O_NONBLOCK socket
-    // using a SIGALRM that fires after a short timeout.
-    bool got_token = ReadByteTimeout(in_fd, 10);
-    if (!got_token) {
-      // No more tokens
-      break;
-    } else {
-      tokens++;
-    }
-  }
-
-  // This process implicitly gets a token, so pool size is measured size + 1
-  return tokens;
-}
-
-// Return tokens to the jobserver pool.
-static void PutJobserverTokens(int out_fd, int tokens) {
-  // Return all the tokens to the pipe
-  char buf = '+';
-  for (int i = 0; i < tokens; i++) {
-    int ret = TEMP_FAILURE_RETRY(write(out_fd, &buf, 1));
-    if (ret < 0) {
-      error(errno, errno, "write failed");
-    } else if (ret == 0) {
-      error(EXIT_FAILURE, 0, "EOF on jobserver pipe");
-    }
-  }
-}
-
-int main(int argc, char* argv[]) {
-  int in_fd = -1;
-  int out_fd = -1;
-  bool parallel = false;
-  bool keep_going = false;
-  bool ninja = false;
-  int tokens = 0;
-
-  if (argc > 1 && strcmp(argv[1], "--ninja") == 0) {
-    ninja = true;
-    argv++;
-    argc--;
-  }
-
-  if (argc < 2) {
-    error(EXIT_FAILURE, 0, "expected command to run");
-  }
-
-  const char* path = argv[1];
-  std::vector<char*> args({argv[1]});
-
-  std::vector<std::string> makeflags = ReadMakeflags();
-  if (ParseMakeflags(makeflags, &in_fd, &out_fd, &parallel, &keep_going)) {
-    if (in_fd >= 0 && out_fd >= 0) {
-      CheckFd(in_fd);
-      CheckFd(out_fd);
-      fcntl(in_fd, F_SETFD, FD_CLOEXEC);
-      fcntl(out_fd, F_SETFD, FD_CLOEXEC);
-      tokens = GetJobserverTokens(in_fd);
-    }
-  }
-
-  std::string jarg;
-  if (parallel) {
-    if (tokens == 0) {
-      if (ninja) {
-        // ninja is parallel by default
-        jarg = "";
-      } else {
-        // make -j with no argument, guess a reasonable parallelism like ninja does
-        jarg = "-j" + std::to_string(sysconf(_SC_NPROCESSORS_ONLN) + 2);
-      }
-    } else {
-      jarg = "-j" + std::to_string(tokens + 1);
-    }
-  }
-
-
-  if (ninja) {
-    if (!parallel) {
-      // ninja is parallel by default, pass -j1 to disable parallelism if make wasn't parallel
-      args.push_back(strdup("-j1"));
-    } else {
-      if (jarg != "") {
-        args.push_back(strdup(jarg.c_str()));
-      }
-    }
-    if (keep_going) {
-      args.push_back(strdup("-k0"));
-    }
-  } else {
-    if (jarg != "") {
-      args.push_back(strdup(jarg.c_str()));
-    }
-  }
-
-  args.insert(args.end(), &argv[2], &argv[argc]);
-
-  args.push_back(nullptr);
-
-  static pid_t pid;
-
-  // Set up signal handlers to forward SIGTERM to child.
-  // Assume that all other signals are sent to the entire process group,
-  // and that we'll wait for our child to exit instead of handling them.
-  struct sigaction action = {};
-  action.sa_flags = SA_RESTART;
-  action.sa_handler = [](int signal) {
-    if (signal == SIGTERM && pid > 0) {
-      kill(pid, signal);
-    }
-  };
-
-  int ret = 0;
-  if (!ret) ret = sigaction(SIGHUP, &action, NULL);
-  if (!ret) ret = sigaction(SIGINT, &action, NULL);
-  if (!ret) ret = sigaction(SIGQUIT, &action, NULL);
-  if (!ret) ret = sigaction(SIGTERM, &action, NULL);
-  if (!ret) ret = sigaction(SIGALRM, &action, NULL);
-  if (ret < 0) {
-    error(errno, errno, "sigaction failed");
-  }
-
-  pid = fork();
-  if (pid < 0) {
-    error(errno, errno, "fork failed");
-  } else if (pid == 0) {
-    // child
-    unsetenv("MAKEFLAGS");
-    unsetenv("MAKELEVEL");
-
-    // make 3.81 sets the stack ulimit to unlimited, which may cause problems
-    // for child processes
-    struct rlimit rlim{};
-    if (getrlimit(RLIMIT_STACK, &rlim) == 0 && rlim.rlim_cur == RLIM_INFINITY) {
-      rlim.rlim_cur = 8*1024*1024;
-      setrlimit(RLIMIT_STACK, &rlim);
-    }
-
-    int ret = execvp(path, args.data());
-    if (ret < 0) {
-      error(errno, errno, "exec %s failed", path);
-    }
-    abort();
-  }
-
-  // parent
-
-  siginfo_t status = {};
-  int exit_status = 0;
-  ret = waitid(P_PID, pid, &status, WEXITED);
-  if (ret < 0) {
-    error(errno, errno, "waitpid failed");
-  } else if (status.si_code == CLD_EXITED) {
-    exit_status = status.si_status;
-  } else {
-    exit_status = -(status.si_status);
-  }
-
-  if (tokens > 0) {
-    PutJobserverTokens(out_fd, tokens);
-  }
-  exit(exit_status);
-}
diff --git a/tools/releasetools/Android.bp b/tools/releasetools/Android.bp
index d4c4673..40cdce8 100644
--- a/tools/releasetools/Android.bp
+++ b/tools/releasetools/Android.bp
@@ -106,6 +106,19 @@
     ],
 }
 
+python_binary_host {
+    name: "merge_builds",
+    defaults: ["releasetools_binary_defaults"],
+    srcs: [
+        "build_super_image.py",
+        "merge_builds.py",
+    ],
+    main: "merge_builds.py",
+    libs: [
+        "releasetools_common",
+    ],
+}
+
 python_defaults {
     name: "releasetools_test_defaults",
     srcs: [
diff --git a/tools/releasetools/add_img_to_target_files.py b/tools/releasetools/add_img_to_target_files.py
index e177828..bdb34b8 100755
--- a/tools/releasetools/add_img_to_target_files.py
+++ b/tools/releasetools/add_img_to_target_files.py
@@ -810,11 +810,11 @@
       banner("recovery (two-step image)")
       # The special recovery.img for two-step package use.
       recovery_two_step_image = common.GetBootableImage(
-          "IMAGES/recovery-two-step.img", "recovery-two-step.img",
+          "OTA/recovery-two-step.img", "recovery-two-step.img",
           OPTIONS.input_tmp, "RECOVERY", two_step_image=True)
       assert recovery_two_step_image, "Failed to create recovery-two-step.img."
       recovery_two_step_image_path = os.path.join(
-          OPTIONS.input_tmp, "IMAGES", "recovery-two-step.img")
+          OPTIONS.input_tmp, "OTA", "recovery-two-step.img")
       if not os.path.exists(recovery_two_step_image_path):
         recovery_two_step_image.WriteToDir(OPTIONS.input_tmp)
         if output_zip:
diff --git a/tools/releasetools/common.py b/tools/releasetools/common.py
index 913601f..1175688 100644
--- a/tools/releasetools/common.py
+++ b/tools/releasetools/common.py
@@ -554,6 +554,64 @@
     logger.info("%-25s = (%s) %s", k, type(v).__name__, v)
 
 
+def MergeDynamicPartitionInfoDicts(framework_dict,
+                                   vendor_dict,
+                                   include_dynamic_partition_list=True,
+                                   size_prefix="",
+                                   size_suffix="",
+                                   list_prefix="",
+                                   list_suffix=""):
+  """Merges dynamic partition info variables.
+
+  Args:
+    framework_dict: The dictionary of dynamic partition info variables from the
+      partial framework target files.
+    vendor_dict: The dictionary of dynamic partition info variables from the
+      partial vendor target files.
+    include_dynamic_partition_list: If true, merges the dynamic_partition_list
+      variable. Not all use cases need this variable merged.
+    size_prefix: The prefix in partition group size variables that precedes the
+      name of the partition group. For example, partition group 'group_a' with
+      corresponding size variable 'super_group_a_group_size' would have the
+      size_prefix 'super_'.
+    size_suffix: Similar to size_prefix but for the variable's suffix. For
+      example, 'super_group_a_group_size' would have size_suffix '_group_size'.
+    list_prefix: Similar to size_prefix but for the partition group's
+      partition_list variable.
+    list_suffix: Similar to size_suffix but for the partition group's
+      partition_list variable.
+
+  Returns:
+    The merged dynamic partition info dictionary.
+  """
+  merged_dict = {}
+  # Partition groups and group sizes are defined by the vendor dict because
+  # these values may vary for each board that uses a shared system image.
+  merged_dict["super_partition_groups"] = vendor_dict["super_partition_groups"]
+  if include_dynamic_partition_list:
+    framework_dynamic_partition_list = framework_dict.get(
+        "dynamic_partition_list", "")
+    vendor_dynamic_partition_list = vendor_dict.get("dynamic_partition_list",
+                                                    "")
+    merged_dict["dynamic_partition_list"] = (
+        "%s %s" % (framework_dynamic_partition_list,
+                   vendor_dynamic_partition_list)).strip()
+  for partition_group in merged_dict["super_partition_groups"].split(" "):
+    # Set the partition group's size using the value from the vendor dict.
+    key = "%s%s%s" % (size_prefix, partition_group, size_suffix)
+    if key not in vendor_dict:
+      raise ValueError("Vendor dict does not contain required key %s." % key)
+    merged_dict[key] = vendor_dict[key]
+
+    # Set the partition group's partition list using a concatenation of the
+    # framework and vendor partition lists.
+    key = "%s%s%s" % (list_prefix, partition_group, list_suffix)
+    merged_dict[key] = (
+        "%s %s" %
+        (framework_dict.get(key, ""), vendor_dict.get(key, ""))).strip()
+  return merged_dict
+
+
 def AppendAVBSigningArgs(cmd, partition):
   """Append signing arguments for avbtool."""
   # e.g., "--key path/to/signing_key --algorithm SHA256_RSA4096"
diff --git a/tools/releasetools/img_from_target_files.py b/tools/releasetools/img_from_target_files.py
index 8fb9871..e4c9852 100755
--- a/tools/releasetools/img_from_target_files.py
+++ b/tools/releasetools/img_from_target_files.py
@@ -103,8 +103,6 @@
       continue
     if not image.endswith(".img"):
       continue
-    if image == "recovery-two-step.img":
-      continue
     if OPTIONS.put_super:
       if image == "super_empty.img":
         continue
diff --git a/tools/releasetools/merge_builds.py b/tools/releasetools/merge_builds.py
new file mode 100644
index 0000000..7724d6f
--- /dev/null
+++ b/tools/releasetools/merge_builds.py
@@ -0,0 +1,138 @@
+#!/usr/bin/env python
+#
+# Copyright (C) 2019 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License. You may obtain a copy of
+# the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations under
+# the License.
+#
+"""Merges two non-dist partial builds together.
+
+Given two partial builds, a framework build and a vendor build, merge the builds
+together so that the images can be flashed using 'fastboot flashall'.
+
+To support both DAP and non-DAP vendor builds with a single framework partial
+build, the framework partial build should always be built with DAP enabled. The
+vendor partial build determines whether the merged result supports DAP.
+
+This script does not require builds to be built with 'make dist'.
+This script assumes that images other than super_empty.img do not require
+regeneration, including vbmeta images.
+TODO(b/137853921): Add support for regenerating vbmeta images.
+
+Usage: merge_builds.py [args]
+
+  --framework_images comma_separated_image_list
+      Comma-separated list of image names that should come from the framework
+      build.
+
+  --product_out_framework product_out_framework_path
+      Path to out/target/product/<framework build>.
+
+  --product_out_vendor product_out_vendor_path
+      Path to out/target/product/<vendor build>.
+"""
+from __future__ import print_function
+
+import logging
+import os
+import sys
+
+import build_super_image
+import common
+
+logger = logging.getLogger(__name__)
+
+OPTIONS = common.OPTIONS
+OPTIONS.framework_images = ("system",)
+OPTIONS.product_out_framework = None
+OPTIONS.product_out_vendor = None
+
+
+def CreateImageSymlinks():
+  for image in OPTIONS.framework_images:
+    image_path = os.path.join(OPTIONS.product_out_framework, "%s.img" % image)
+    symlink_path = os.path.join(OPTIONS.product_out_vendor, "%s.img" % image)
+    if os.path.exists(symlink_path):
+      if os.path.islink(symlink_path):
+        os.remove(symlink_path)
+      else:
+        raise ValueError("Attempting to overwrite built image: %s" %
+                         symlink_path)
+    os.symlink(image_path, symlink_path)
+
+
+def BuildSuperEmpty():
+  framework_dict = common.LoadDictionaryFromFile(
+      os.path.join(OPTIONS.product_out_framework, "misc_info.txt"))
+  vendor_dict = common.LoadDictionaryFromFile(
+      os.path.join(OPTIONS.product_out_vendor, "misc_info.txt"))
+  # Regenerate super_empty.img if both partial builds enable DAP. If only the
+  # the vendor build enables DAP, the vendor build's existing super_empty.img
+  # will be reused. If only the framework build should enable DAP, super_empty
+  # should be included in the --framework_images flag to copy the existing
+  # super_empty.img from the framework build.
+  if (framework_dict.get("use_dynamic_partitions") == "true") and (
+      vendor_dict.get("use_dynamic_partitions") == "true"):
+    merged_dict = dict(vendor_dict)
+    merged_dict.update(
+        common.MergeDynamicPartitionInfoDicts(
+            framework_dict=framework_dict,
+            vendor_dict=vendor_dict,
+            size_prefix="super_",
+            size_suffix="_group_size",
+            list_prefix="super_",
+            list_suffix="_partition_list"))
+    output_super_empty_path = os.path.join(OPTIONS.product_out_vendor,
+                                           "super_empty.img")
+    build_super_image.BuildSuperImage(merged_dict, output_super_empty_path)
+
+
+def MergeBuilds():
+  CreateImageSymlinks()
+  BuildSuperEmpty()
+  # TODO(b/137853921): Add support for regenerating vbmeta images.
+
+
+def main():
+  common.InitLogging()
+
+  def option_handler(o, a):
+    if o == "--framework_images":
+      OPTIONS.framework_images = [i.strip() for i in a.split(",")]
+    elif o == "--product_out_framework":
+      OPTIONS.product_out_framework = a
+    elif o == "--product_out_vendor":
+      OPTIONS.product_out_vendor = a
+    else:
+      return False
+    return True
+
+  args = common.ParseOptions(
+      sys.argv[1:],
+      __doc__,
+      extra_long_opts=[
+          "framework_images=",
+          "product_out_framework=",
+          "product_out_vendor=",
+      ],
+      extra_option_handler=option_handler)
+
+  if (args or OPTIONS.product_out_framework is None or
+      OPTIONS.product_out_vendor is None):
+    common.Usage(__doc__)
+    sys.exit(1)
+
+  MergeBuilds()
+
+
+if __name__ == "__main__":
+  main()
diff --git a/tools/releasetools/merge_target_files.py b/tools/releasetools/merge_target_files.py
index 7343f38..81b95c8 100755
--- a/tools/releasetools/merge_target_files.py
+++ b/tools/releasetools/merge_target_files.py
@@ -402,64 +402,6 @@
             'selabel=u:object_r:install_recovery_exec:s0 capabilities=0x0\n')
 
 
-def merge_dynamic_partition_info_dicts(framework_dict,
-                                       vendor_dict,
-                                       include_dynamic_partition_list=True,
-                                       size_prefix='',
-                                       size_suffix='',
-                                       list_prefix='',
-                                       list_suffix=''):
-  """Merges dynamic partition info variables.
-
-  Args:
-    framework_dict: The dictionary of dynamic partition info variables from the
-      partial framework target files.
-    vendor_dict: The dictionary of dynamic partition info variables from the
-      partial vendor target files.
-    include_dynamic_partition_list: If true, merges the dynamic_partition_list
-      variable. Not all use cases need this variable merged.
-    size_prefix: The prefix in partition group size variables that precedes the
-      name of the partition group. For example, partition group 'group_a' with
-      corresponding size variable 'super_group_a_group_size' would have the
-      size_prefix 'super_'.
-    size_suffix: Similar to size_prefix but for the variable's suffix. For
-      example, 'super_group_a_group_size' would have size_suffix '_group_size'.
-    list_prefix: Similar to size_prefix but for the partition group's
-      partition_list variable.
-    list_suffix: Similar to size_suffix but for the partition group's
-      partition_list variable.
-
-  Returns:
-    The merged dynamic partition info dictionary.
-  """
-  merged_dict = {}
-  # Partition groups and group sizes are defined by the vendor dict because
-  # these values may vary for each board that uses a shared system image.
-  merged_dict['super_partition_groups'] = vendor_dict['super_partition_groups']
-  if include_dynamic_partition_list:
-    framework_dynamic_partition_list = framework_dict.get(
-        'dynamic_partition_list', '')
-    vendor_dynamic_partition_list = vendor_dict.get('dynamic_partition_list',
-                                                    '')
-    merged_dict['dynamic_partition_list'] = (
-        '%s %s' % (framework_dynamic_partition_list,
-                   vendor_dynamic_partition_list)).strip()
-  for partition_group in merged_dict['super_partition_groups'].split(' '):
-    # Set the partition group's size using the value from the vendor dict.
-    key = '%s%s%s' % (size_prefix, partition_group, size_suffix)
-    if key not in vendor_dict:
-      raise ValueError('Vendor dict does not contain required key %s.' % key)
-    merged_dict[key] = vendor_dict[key]
-
-    # Set the partition group's partition list using a concatenation of the
-    # framework and vendor partition lists.
-    key = '%s%s%s' % (list_prefix, partition_group, list_suffix)
-    merged_dict[key] = (
-        '%s %s' %
-        (framework_dict.get(key, ''), vendor_dict.get(key, ''))).strip()
-  return merged_dict
-
-
 def process_misc_info_txt(framework_target_files_temp_dir,
                           vendor_target_files_temp_dir,
                           output_target_files_temp_dir,
@@ -503,7 +445,7 @@
   # Merge misc info keys used for Dynamic Partitions.
   if (merged_dict.get('use_dynamic_partitions') == 'true') and (
       framework_dict.get('use_dynamic_partitions') == 'true'):
-    merged_dynamic_partitions_dict = merge_dynamic_partition_info_dicts(
+    merged_dynamic_partitions_dict = common.MergeDynamicPartitionInfoDicts(
         framework_dict=framework_dict,
         vendor_dict=merged_dict,
         size_prefix='super_',
@@ -566,7 +508,7 @@
   vendor_dynamic_partitions_dict = common.LoadDictionaryFromFile(
       os.path.join(vendor_target_files_dir, *dynamic_partitions_info_path))
 
-  merged_dynamic_partitions_dict = merge_dynamic_partition_info_dicts(
+  merged_dynamic_partitions_dict = common.MergeDynamicPartitionInfoDicts(
       framework_dict=framework_dynamic_partitions_dict,
       vendor_dict=vendor_dynamic_partitions_dict,
       # META/dynamic_partitions_info.txt does not use dynamic_partition_list.
diff --git a/tools/releasetools/ota_from_target_files.py b/tools/releasetools/ota_from_target_files.py
index db7e86c..4472b4a 100755
--- a/tools/releasetools/ota_from_target_files.py
+++ b/tools/releasetools/ota_from_target_files.py
@@ -240,7 +240,7 @@
 POSTINSTALL_CONFIG = 'META/postinstall_config.txt'
 DYNAMIC_PARTITION_INFO = 'META/dynamic_partitions_info.txt'
 AB_PARTITIONS = 'META/ab_partitions.txt'
-UNZIP_PATTERN = ['IMAGES/*', 'META/*', 'RADIO/*']
+UNZIP_PATTERN = ['IMAGES/*', 'META/*', 'OTA/*', 'RADIO/*']
 RETROFIT_DAP_UNZIP_PATTERN = ['OTA/super_*.img', AB_PARTITIONS]
 
 
@@ -681,13 +681,12 @@
 
   recovery_two_step_img_name = "recovery-two-step.img"
   recovery_two_step_img_path = os.path.join(
-      OPTIONS.input_tmp, "IMAGES", recovery_two_step_img_name)
+      OPTIONS.input_tmp, "OTA", recovery_two_step_img_name)
   if os.path.exists(recovery_two_step_img_path):
-    recovery_two_step_img = common.GetBootableImage(
-        recovery_two_step_img_name, recovery_two_step_img_name,
-        OPTIONS.input_tmp, "RECOVERY")
-    common.ZipWriteStr(
-        output_zip, recovery_two_step_img_name, recovery_two_step_img.data)
+    common.ZipWrite(
+        output_zip,
+        recovery_two_step_img_path,
+        arcname=recovery_two_step_img_name)
     logger.info(
         "two-step package: using %s in stage 1/3", recovery_two_step_img_name)
     script.WriteRawImage("/boot", recovery_two_step_img_name)
diff --git a/tools/releasetools/sign_target_files_apks.py b/tools/releasetools/sign_target_files_apks.py
index 4cb3a37..3119afa 100755
--- a/tools/releasetools/sign_target_files_apks.py
+++ b/tools/releasetools/sign_target_files_apks.py
@@ -111,6 +111,7 @@
 import copy
 import errno
 import gzip
+import io
 import itertools
 import logging
 import os
@@ -422,7 +423,8 @@
     if filename.startswith("IMAGES/"):
       continue
 
-    # Skip split super images, which will be re-generated during signing.
+    # Skip OTA-specific images (e.g. split super images), which will be
+    # re-generated during signing.
     if filename.startswith("OTA/") and filename.endswith(".img"):
       continue
 
@@ -746,12 +748,7 @@
     filename: The archive name in the output zip.
     keys: A list of public keys to use during OTA package verification.
   """
-
-  try:
-    from StringIO import StringIO
-  except ImportError:
-    from io import StringIO
-  temp_file = StringIO()
+  temp_file = io.BytesIO()
   certs_zip = zipfile.ZipFile(temp_file, "w")
   for k in keys:
     common.ZipWrite(certs_zip, k)
diff --git a/tools/releasetools/test_common.py b/tools/releasetools/test_common.py
index 3a2198c..bcfb1c1 100644
--- a/tools/releasetools/test_common.py
+++ b/tools/releasetools/test_common.py
@@ -1074,6 +1074,69 @@
       self.assertRaises(
           AssertionError, common.LoadInfoDict, target_files_zip, True)
 
+  def test_MergeDynamicPartitionInfoDicts_ReturnsMergedDict(self):
+    framework_dict = {
+        'super_partition_groups': 'group_a',
+        'dynamic_partition_list': 'system',
+        'super_group_a_list': 'system',
+    }
+    vendor_dict = {
+        'super_partition_groups': 'group_a group_b',
+        'dynamic_partition_list': 'vendor product',
+        'super_group_a_list': 'vendor',
+        'super_group_a_size': '1000',
+        'super_group_b_list': 'product',
+        'super_group_b_size': '2000',
+    }
+    merged_dict = common.MergeDynamicPartitionInfoDicts(
+        framework_dict=framework_dict,
+        vendor_dict=vendor_dict,
+        size_prefix='super_',
+        size_suffix='_size',
+        list_prefix='super_',
+        list_suffix='_list')
+    expected_merged_dict = {
+        'super_partition_groups': 'group_a group_b',
+        'dynamic_partition_list': 'system vendor product',
+        'super_group_a_list': 'system vendor',
+        'super_group_a_size': '1000',
+        'super_group_b_list': 'product',
+        'super_group_b_size': '2000',
+    }
+    self.assertEqual(merged_dict, expected_merged_dict)
+
+  def test_MergeDynamicPartitionInfoDicts_IgnoringFrameworkGroupSize(self):
+    framework_dict = {
+        'super_partition_groups': 'group_a',
+        'dynamic_partition_list': 'system',
+        'super_group_a_list': 'system',
+        'super_group_a_size': '5000',
+    }
+    vendor_dict = {
+        'super_partition_groups': 'group_a group_b',
+        'dynamic_partition_list': 'vendor product',
+        'super_group_a_list': 'vendor',
+        'super_group_a_size': '1000',
+        'super_group_b_list': 'product',
+        'super_group_b_size': '2000',
+    }
+    merged_dict = common.MergeDynamicPartitionInfoDicts(
+        framework_dict=framework_dict,
+        vendor_dict=vendor_dict,
+        size_prefix='super_',
+        size_suffix='_size',
+        list_prefix='super_',
+        list_suffix='_list')
+    expected_merged_dict = {
+        'super_partition_groups': 'group_a group_b',
+        'dynamic_partition_list': 'system vendor product',
+        'super_group_a_list': 'system vendor',
+        'super_group_a_size': '1000',
+        'super_group_b_list': 'product',
+        'super_group_b_size': '2000',
+    }
+    self.assertEqual(merged_dict, expected_merged_dict)
+
 
 class InstallRecoveryScriptFormatTest(test_utils.ReleaseToolsTestCase):
   """Checks the format of install-recovery.sh.
diff --git a/tools/releasetools/test_merge_target_files.py b/tools/releasetools/test_merge_target_files.py
index 1b1c725..1abe83c 100644
--- a/tools/releasetools/test_merge_target_files.py
+++ b/tools/releasetools/test_merge_target_files.py
@@ -22,7 +22,6 @@
                                 DEFAULT_FRAMEWORK_ITEM_LIST,
                                 DEFAULT_VENDOR_ITEM_LIST,
                                 DEFAULT_FRAMEWORK_MISC_INFO_KEYS, copy_items,
-                                merge_dynamic_partition_info_dicts,
                                 process_apex_keys_apk_certs_common)
 
 
@@ -126,69 +125,6 @@
                                 framework_misc_info_keys,
                                 DEFAULT_VENDOR_ITEM_LIST))
 
-  def test_merge_dynamic_partition_info_dicts_ReturnsMergedDict(self):
-    framework_dict = {
-        'super_partition_groups': 'group_a',
-        'dynamic_partition_list': 'system',
-        'super_group_a_list': 'system',
-    }
-    vendor_dict = {
-        'super_partition_groups': 'group_a group_b',
-        'dynamic_partition_list': 'vendor product',
-        'super_group_a_list': 'vendor',
-        'super_group_a_size': '1000',
-        'super_group_b_list': 'product',
-        'super_group_b_size': '2000',
-    }
-    merged_dict = merge_dynamic_partition_info_dicts(
-        framework_dict=framework_dict,
-        vendor_dict=vendor_dict,
-        size_prefix='super_',
-        size_suffix='_size',
-        list_prefix='super_',
-        list_suffix='_list')
-    expected_merged_dict = {
-        'super_partition_groups': 'group_a group_b',
-        'dynamic_partition_list': 'system vendor product',
-        'super_group_a_list': 'system vendor',
-        'super_group_a_size': '1000',
-        'super_group_b_list': 'product',
-        'super_group_b_size': '2000',
-    }
-    self.assertEqual(merged_dict, expected_merged_dict)
-
-  def test_merge_dynamic_partition_info_dicts_IgnoringFrameworkGroupSize(self):
-    framework_dict = {
-        'super_partition_groups': 'group_a',
-        'dynamic_partition_list': 'system',
-        'super_group_a_list': 'system',
-        'super_group_a_size': '5000',
-    }
-    vendor_dict = {
-        'super_partition_groups': 'group_a group_b',
-        'dynamic_partition_list': 'vendor product',
-        'super_group_a_list': 'vendor',
-        'super_group_a_size': '1000',
-        'super_group_b_list': 'product',
-        'super_group_b_size': '2000',
-    }
-    merged_dict = merge_dynamic_partition_info_dicts(
-        framework_dict=framework_dict,
-        vendor_dict=vendor_dict,
-        size_prefix='super_',
-        size_suffix='_size',
-        list_prefix='super_',
-        list_suffix='_list')
-    expected_merged_dict = {
-        'super_partition_groups': 'group_a group_b',
-        'dynamic_partition_list': 'system vendor product',
-        'super_group_a_list': 'system vendor',
-        'super_group_a_size': '1000',
-        'super_group_b_list': 'product',
-        'super_group_b_size': '2000',
-    }
-    self.assertEqual(merged_dict, expected_merged_dict)
-
   def test_process_apex_keys_apk_certs_ReturnsTrueIfNoConflicts(self):
     output_dir = common.MakeTempDir()
     os.makedirs(os.path.join(output_dir, 'META'))
diff --git a/tools/releasetools/test_sign_target_files_apks.py b/tools/releasetools/test_sign_target_files_apks.py
index 0100729..70c147e 100644
--- a/tools/releasetools/test_sign_target_files_apks.py
+++ b/tools/releasetools/test_sign_target_files_apks.py
@@ -15,6 +15,7 @@
 #
 
 import base64
+import io
 import os.path
 import zipfile
 
@@ -22,7 +23,7 @@
 import test_utils
 from sign_target_files_apks import (
     CheckApkAndApexKeysAvailable, EditTags, GetApkFileInfo, ReadApexKeysInfo,
-    ReplaceCerts, ReplaceVerityKeyId, RewriteProps)
+    ReplaceCerts, ReplaceVerityKeyId, RewriteProps, WriteOtacerts)
 
 
 class SignTargetFilesApksTest(test_utils.ReleaseToolsTestCase):
@@ -236,6 +237,22 @@
     }
     self.assertEqual(output_xml, ReplaceCerts(input_xml))
 
+  def test_WriteOtacerts(self):
+    certs = [
+        os.path.join(self.testdata_dir, 'platform.x509.pem'),
+        os.path.join(self.testdata_dir, 'media.x509.pem'),
+        os.path.join(self.testdata_dir, 'testkey.x509.pem'),
+    ]
+    entry_name = 'SYSTEM/etc/security/otacerts.zip'
+    output_file = common.MakeTempFile(suffix='.zip')
+    with zipfile.ZipFile(output_file, 'w') as output_zip:
+      WriteOtacerts(output_zip, entry_name, certs)
+    with zipfile.ZipFile(output_file) as input_zip:
+      self.assertIn(entry_name, input_zip.namelist())
+      otacerts_file = io.BytesIO(input_zip.read(entry_name))
+      with zipfile.ZipFile(otacerts_file) as otacerts_zip:
+        self.assertEqual(3, len(otacerts_zip.namelist()))
+
   def test_CheckApkAndApexKeysAvailable(self):
     input_file = common.MakeTempFile(suffix='.zip')
     with zipfile.ZipFile(input_file, 'w') as input_zip:
diff --git a/tools/releasetools/validate_target_files.py b/tools/releasetools/validate_target_files.py
index 435e7f2..d189499 100755
--- a/tools/releasetools/validate_target_files.py
+++ b/tools/releasetools/validate_target_files.py
@@ -257,7 +257,10 @@
     if verity_key is None:
       verity_key = info_dict['verity_key'] + '.x509.pem'
     for image in ('boot.img', 'recovery.img', 'recovery-two-step.img'):
-      image_path = os.path.join(input_tmp, 'IMAGES', image)
+      if image == 'recovery-two-step.img':
+        image_path = os.path.join(input_tmp, 'OTA', image)
+      else:
+        image_path = os.path.join(input_tmp, 'IMAGES', image)
       if not os.path.exists(image_path):
         continue