kumquat-buildroot/fs/squashfs/squashfs.mk
Linus Kaschulla d9c144d5f5 fs/squashfs: Add option to compress with extreme options
mksquashfs allows to tweak many compressions parameters. Currently they
can't be changed from kmenu. Leaving out potential space savings.

This adds the option to enable a set of predetermined compression
options. This option is enabled by default for lz4 since lz4 currently
implicitly added the extreme to it in the makefile. So this aids in
keeping backward compatibility.

Signed-off-by: Linus Kaschulla <linus@cosmos-ink.net>
[yann.morin.1998@free.fr:
  - fix check-package
  - change the default code-style, add the legacy comment
  - always add the qstriped string, as it's empty when not used
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2022-05-17 08:01:14 +02:00

38 lines
1.1 KiB
Makefile

################################################################################
#
# Build the squashfs root filesystem image
#
################################################################################
ROOTFS_SQUASHFS_DEPENDENCIES = host-squashfs
ROOTFS_SQUASHFS_ARGS = \
-noappend \
-processors $(PARALLEL_JOBS) \
-b $(call qstrip,$(BR2_TARGET_ROOTFS_SQUASHFS_BS)) \
$(call qstrip,$(BR2_TARGET_ROOTFS_SQUASHFS_COMP_OPTS))
ifeq ($(BR2_TARGET_ROOTFS_SQUASHFS_PAD),)
ROOTFS_SQUASHFS_ARGS += -nopad
endif
ifeq ($(BR2_TARGET_ROOTFS_SQUASHFS4_LZ4),y)
ROOTFS_SQUASHFS_ARGS += -comp lz4
else ifeq ($(BR2_TARGET_ROOTFS_SQUASHFS4_LZO),y)
ROOTFS_SQUASHFS_ARGS += -comp lzo
else ifeq ($(BR2_TARGET_ROOTFS_SQUASHFS4_LZMA),y)
ROOTFS_SQUASHFS_ARGS += -comp lzma
else ifeq ($(BR2_TARGET_ROOTFS_SQUASHFS4_XZ),y)
ROOTFS_SQUASHFS_ARGS += -comp xz
else ifeq ($(BR2_TARGET_ROOTFS_SQUASHFS4_ZSTD),y)
ROOTFS_SQUASHFS_ARGS += -comp zstd
else
ROOTFS_SQUASHFS_ARGS += -comp gzip
endif
define ROOTFS_SQUASHFS_CMD
$(HOST_DIR)/bin/mksquashfs $(TARGET_DIR) $@ $(ROOTFS_SQUASHFS_ARGS)
endef
$(eval $(rootfs))