msm8953-common: Add initial AB fstab

BoardConfigCommon.mk

@@ -183,7 +183,11 @@ TARGET_USE_SDCLANG := true
 TARGET_RIL_VARIANT := caf
 
 # Recovery
+ifeq ($(AB_OTA_UPDATER), true)
+TARGET_RECOVERY_FSTAB := $(VENDOR_PATH)/rootdir/fstab_AB.qcom
+else
 TARGET_RECOVERY_FSTAB := $(VENDOR_PATH)/rootdir/recovery/fstab.qcom
+endif
 
 # SELinux
 include device/qcom/sepolicy/sepolicy.mk

rootdir/Android.mk

@@ -6,7 +6,11 @@ include $(CLEAR_VARS)
 LOCAL_MODULE       := fstab.qcom
 LOCAL_MODULE_TAGS  := optional eng
 LOCAL_MODULE_CLASS := ETC
+ifeq ($(AB_OTA_UPDATER), true)
+LOCAL_SRC_FILES    := fstab_AB.qcom
+else
 LOCAL_SRC_FILES    := fstab.qcom
+endif
 LOCAL_MODULE_PATH  := $(TARGET_OUT_VENDOR_ETC)
 include $(BUILD_PREBUILT)
 

rootdir/fstab_AB.qcom

+# Android fstab file.
+# The filesystem that contains the filesystem checker binary (typically /system) cannot
+# specify MF_CHECK, and must come before any filesystems that do specify MF_CHECK
+
+#<src>						<mnt_point>		<type>	<mnt_flags and options>						<fs_mgr_flags>
+/dev/block/bootdevice/by-name/system		/			ext4	ro,barrier=1,discard						wait,slotselect
+/dev/block/bootdevice/by-name/userdata		/data			f2fs	nosuid,nodev,noatime,inline_xattr,data_flush			wait,check,encryptable=footer,formattable,length=-16384
+/dev/block/bootdevice/by-name/userdata		/data			ext4	nosuid,nodev,noatime,noauto_da_alloc				wait,check,encryptable=footer,formattable,length=-16384
+/dev/block/bootdevice/by-name/persist		/persist		ext4	nosuid,nodev							wait,check
+/dev/block/bootdevice/by-name/dsp		/dsp			ext4	ro,nosuid,nodev							wait
+/dev/block/bootdevice/by-name/modem		/firmware		vfat	ro,shortname=lower,uid=1000,gid=1000,dmask=227,fmask=337,context=u:object_r:firmware_file:s0 wait,slotselect
+/dev/block/bootdevice/by-name/misc		/misc			emmc	defaults							defaults
+/dev/block/bootdevice/by-name/config		/frp			emmc	defaults							defaults
+
+/devices/soc/7864900.sdhci/mmc_host*		auto			auto	defaults							wait,voldmanaged=sdcard1:auto,noemulatedsd,encryptable=userdata
+/devices/soc/7000000.ssusb/7000000.dwc3/xhci-hcd.0.auto*     auto	auto    defaults							wait,voldmanaged=usb:auto