uml: clean up the kernel config and add squashfs+ext4/f2fs support

Replaces plain ext4 images

Signed-off-by: Felix Fietkau <nbd@nbd.name>

config/Config-images.in

@@ -252,7 +252,7 @@ menu "Target Images"
 
 	config TARGET_ROOTFS_PARTSIZE
 		int "Root filesystem partition size (in MB)"
-		depends on GRUB_IMAGES || TARGET_ROOTFS_EXT4FS || TARGET_rb532 || TARGET_mvebu
+		depends on GRUB_IMAGES || TARGET_ROOTFS_EXT4FS || TARGET_rb532 || TARGET_mvebu || TARGET_uml
 		default 2048 if TARGET_x86
 		default 256 if ! TARGET_x86
 		help

target/linux/uml/Makefile

@@ -20,7 +20,7 @@ ARCH:=$(shell uname -m | sed \
 )
 BOARD:=uml
 BOARDNAME:=User Mode Linux
-FEATURES:=ext4 audio
+FEATURES:=squashfs ext4 audio
 MAINTAINER:=Florian Fainelli <florian@openwrt.org>
 
 KERNEL_PATCHVER:=4.4
@@ -35,7 +35,7 @@ endef
 
 LINUX_TARGET_CONFIG:=$(CURDIR)/config/$(ARCH)
 
-DEFAULT_PACKAGES += wpad-mini kmod-mac80211-hwsim
+DEFAULT_PACKAGES += wpad-mini kmod-mac80211-hwsim mkf2fs e2fsprogs
 
 endif
 

target/linux/uml/config/i386

@@ -7,6 +7,7 @@ CONFIG_ARCH_HAS_SC_SIGNALS=y
 CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA=y
 CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
 CONFIG_BLK_DEV_COW_COMMON=y
+CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_UBD=y
 CONFIG_BLK_DEV_UBD_SYNC=y
 CONFIG_CLONE_BACKWARDS=y
@@ -18,7 +19,6 @@ CONFIG_CPU_SUP_CYRIX_32=y
 CONFIG_CPU_SUP_INTEL=y
 CONFIG_CPU_SUP_TRANSMETA_32=y
 CONFIG_CPU_SUP_UMC_32=y
-CONFIG_CRAMFS=y
 # CONFIG_CRASHLOG is not set
 CONFIG_CRC16=y
 CONFIG_CRYPTO_CRC32C=y
@@ -37,6 +37,11 @@ CONFIG_DNOTIFY=y
 # CONFIG_EARLY_PRINTK is not set
 # CONFIG_EMBEDDED is not set
 CONFIG_EXT4_FS=y
+# CONFIG_F2FS_CHECK_FS is not set
+CONFIG_F2FS_FS=y
+# CONFIG_F2FS_FS_SECURITY is not set
+CONFIG_F2FS_FS_XATTR=y
+CONFIG_F2FS_STAT_FS=y
 CONFIG_FS_MBCACHE=y
 CONFIG_GENERIC_BUG=y
 CONFIG_GENERIC_CLOCKEVENTS=y
@@ -62,6 +67,8 @@ CONFIG_IOSCHED_CFQ=y
 CONFIG_IRQ_WORK=y
 CONFIG_ISO9660_FS=y
 CONFIG_JBD2=y
+# CONFIG_JFFS2_CMODE_PRIORITY is not set
+# CONFIG_JFFS2_FS is not set
 CONFIG_KALLSYMS=y
 CONFIG_KERNEL_STACK_ORDER=2
 CONFIG_LD_SCRIPT_STATIC=y
@@ -115,12 +122,6 @@ CONFIG_PRINT_QUOTA_WARNING=y
 # CONFIG_PROCESSOR_SELECT is not set
 CONFIG_PROC_PAGE_MONITOR=y
 CONFIG_PTY_CHAN=y
-CONFIG_QFMT_V1=y
-CONFIG_QFMT_V2=y
-CONFIG_QUOTA=y
-CONFIG_QUOTACTL=y
-# CONFIG_QUOTA_NETLINK_INTERFACE is not set
-CONFIG_QUOTA_TREE=y
 # CONFIG_RCU_STALL_COMMON is not set
 CONFIG_RD_BZIP2=y
 CONFIG_RD_GZIP=y
@@ -140,7 +141,6 @@ CONFIG_SSL_CHAN="pty"
 CONFIG_STACKTRACE=y
 CONFIG_STATIC_LINK=y
 CONFIG_STDERR_CONSOLE=y
-# CONFIG_SUNXI_SRAM is not set
 CONFIG_TICK_CPU_ACCOUNTING=y
 # CONFIG_TRACE_IRQFLAGS_SUPPORT is not set
 CONFIG_TTY_CHAN=y

target/linux/uml/config/x86_64

@@ -7,6 +7,7 @@ CONFIG_ARCH_DEFCONFIG="arch/um/configs/x86_64_defconfig"
 # CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA is not set
 CONFIG_BINFMT_MISC=m
 CONFIG_BLK_DEV_COW_COMMON=y
+CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_UBD=y
 CONFIG_BLK_DEV_UBD_SYNC=y
 CONFIG_CON_CHAN="xterm"
@@ -14,7 +15,6 @@ CONFIG_CON_ZERO_CHAN="fd:0,fd:1"
 CONFIG_CPU_SUP_AMD=y
 CONFIG_CPU_SUP_CENTAUR=y
 CONFIG_CPU_SUP_INTEL=y
-CONFIG_CRAMFS=y
 # CONFIG_CRASHLOG is not set
 CONFIG_CRC16=y
 # CONFIG_CRYPTO_AES_X86_64 is not set
@@ -37,6 +37,11 @@ CONFIG_DEFAULT_IOSCHED="cfq"
 CONFIG_DNOTIFY=y
 # CONFIG_EARLY_PRINTK is not set
 CONFIG_EXT4_FS=y
+# CONFIG_F2FS_CHECK_FS is not set
+CONFIG_F2FS_FS=y
+# CONFIG_F2FS_FS_SECURITY is not set
+CONFIG_F2FS_FS_XATTR=y
+CONFIG_F2FS_STAT_FS=y
 CONFIG_FS_MBCACHE=y
 CONFIG_GENERIC_BUG=y
 CONFIG_GENERIC_CLOCKEVENTS=y
@@ -63,6 +68,7 @@ CONFIG_IOSCHED_CFQ=y
 CONFIG_IRQ_WORK=y
 CONFIG_ISO9660_FS=y
 CONFIG_JBD2=y
+# CONFIG_JFFS2_FS is not set
 CONFIG_KALLSYMS=y
 CONFIG_KERNEL_STACK_ORDER=2
 CONFIG_LD_SCRIPT_STATIC=y
@@ -89,16 +95,9 @@ CONFIG_PHYS_ADDR_T_64BIT=y
 CONFIG_PORT_CHAN=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_POSIX_MQUEUE_SYSCTL=y
-# CONFIG_PRINT_QUOTA_WARNING is not set
 # CONFIG_PROCESSOR_SELECT is not set
 CONFIG_PROC_PAGE_MONITOR=y
 CONFIG_PTY_CHAN=y
-CONFIG_QFMT_V1=y
-CONFIG_QFMT_V2=y
-CONFIG_QUOTA=y
-CONFIG_QUOTACTL=y
-# CONFIG_QUOTA_NETLINK_INTERFACE is not set
-CONFIG_QUOTA_TREE=y
 # CONFIG_RCU_STALL_COMMON is not set
 CONFIG_RD_BZIP2=y
 CONFIG_RD_GZIP=y
@@ -118,7 +117,6 @@ CONFIG_SSL_CHAN="pty"
 CONFIG_STACKTRACE=y
 CONFIG_STATIC_LINK=y
 CONFIG_STDERR_CONSOLE=y
-# CONFIG_SUNXI_SRAM is not set
 CONFIG_TICK_CPU_ACCOUNTING=y
 # CONFIG_TRACE_IRQFLAGS_SUPPORT is not set
 CONFIG_TTY_CHAN=y

target/linux/uml/image/Makefile

@@ -11,7 +11,12 @@ define Image/Prepare
 	cp $(LINUX_DIR)/linux $(KDIR)/vmlinux.elf
 endef
 
+define Image/Build/squashfs
+	dd if=/dev/zero of=$(KDIR)/root.squashfs bs=1024k count=0 seek=$(CONFIG_TARGET_ROOTFS_PARTSIZE)
+endef
+
 define Image/Build
+	$(call Image/Build/$(1))
 	cp $(KDIR)/root.$(1) $(BIN_DIR)/$(IMG_PREFIX)-$(1).img
 	cp $(KDIR)/vmlinux.elf $(BIN_DIR)/$(IMG_PREFIX)-vmlinux
 endef