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image: support generating per device targz rootfs

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Currently, for targets that use the CONFIG_TARGET_ROOTFS_TARGZ a single
rootfs tarball is generated for the subtarget based of $(TARGET_DIR).

However, this means that it does not respect DEVICE_PACKAGES like other
rootfs images.

So, lets augment CONFIG_TARGET_ROOTFS_TARGZ by adding a proper targz fstype
so that per device rootfs is generated under lock.

This is required so that devices that use custom sysupgrade archives like
Methode devices, can actually include a per device rootfs so when building
for multiple devices and with CONFIG_TARGET_PER_DEVICE_ROOTFS set the built
image actually includes the listed DEVICE_PACKAGES.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
This commit is contained in:
Robert Marko 2026-02-09 12:25:56 +01:00
parent 61c9337d80
commit d89cb72c23
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GPG key ID: 66D805C09F36AFA5
1 changed files with 7 additions and 0 deletions
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7
include/image.mk
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@ -117,6 +117,7 @@ fs-types-$(CONFIG_TARGET_ROOTFS_JFFS2_NAND) += $(addprefix jffs2-nand-,$(NAND_BL
fs-types-$(CONFIG_TARGET_ROOTFS_EXT4FS) += ext4
fs-types-$(CONFIG_TARGET_ROOTFS_UBIFS) += ubifs
fs-types-$(CONFIG_TARGET_ROOTFS_EROFS) += erofs
fs-types-$(CONFIG_TARGET_ROOTFS_TARGZ) += targz
fs-subtypes-$(CONFIG_TARGET_ROOTFS_JFFS2) += $(addsuffix -raw,$(addprefix jffs2-,$(JFFS2_BLOCKSIZE)))
TARGET_FILESYSTEMS := $(fs-types-y)
@ -329,6 +330,12 @@ define Image/mkfs/erofs
$@ $(call mkfs_target_dir,$(1))
endef
define Image/mkfs/targz
$(TAR) -cp --numeric-owner --owner=0 --group=0 --mode=a-s --sort=name \
$(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
-C $(call mkfs_target_dir,$(1)) . | gzip -9n > $@
endef
define Image/Manifest
$(if $(CONFIG_USE_APK), \
$(call apk,$(TARGET_DIR_ORIG)) list --quiet --manifest --no-network \