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-rw-r--r--config/Config-images.in21
-rw-r--r--include/image-commands.mk27
-rw-r--r--include/kernel-defaults.mk26
-rwxr-xr-xscripts/mkits.sh28
-rwxr-xr-xscripts/target-metadata.pl1
-rw-r--r--target/Config.in3
6 files changed, 100 insertions, 6 deletions
diff --git a/config/Config-images.in b/config/Config-images.in
index 957d3af18f..080fee2cce 100644
--- a/config/Config-images.in
+++ b/config/Config-images.in
@@ -35,9 +35,11 @@ menu "Target Images"
bool "lzma"
config TARGET_INITRAMFS_COMPRESSION_LZO
+ depends on !TARGET_ROOTFS_INITRAMFS_SEPERATE
bool "lzo"
config TARGET_INITRAMFS_COMPRESSION_LZ4
+ depends on !TARGET_ROOTFS_INITRAMFS_SEPERATE
bool "lz4"
config TARGET_INITRAMFS_COMPRESSION_XZ
@@ -56,11 +58,20 @@ menu "Target Images"
Kernel uses specified external cpio as INITRAMFS_SOURCE.
config TARGET_INITRAMFS_FORCE
- bool "Force"
- depends on TARGET_ROOTFS_INITRAMFS
- default n
- help
- Ignore the initramfs passed by the bootloader.
+ bool "Force"
+ depends on TARGET_ROOTFS_INITRAMFS
+ default n
+ help
+ Ignore the initramfs passed by the bootloader.
+
+ config TARGET_ROOTFS_INITRAMFS_SEPERATE
+ bool "seperate ramdisk"
+ depends on TARGET_ROOTFS_INITRAMFS && !TARGET_INITRAMFS_FORCE
+ default y if USES_SEPERATE_INITRAMFS
+ help
+ Generate seperate initrd.cpio instead of embedding it.
+ This is useful for generating images with a dedicated
+ ramdisk e.g. in U-Boot's uImage and uImage.FIT formats.
comment "Root filesystem archives"
diff --git a/include/image-commands.mk b/include/image-commands.mk
index 3377680a07..d4ec51ca7c 100644
--- a/include/image-commands.mk
+++ b/include/image-commands.mk
@@ -196,11 +196,22 @@ define Build/eva-image
mv $@.new $@
endef
+define Build/initrd_compression
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_BZIP2),.bzip2) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_GZIP),.gzip) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZMA),.lzma) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_XZ),.xz) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_ZSTD),.zstd)
+endef
+
define Build/fit
$(TOPDIR)/scripts/mkits.sh \
-D $(DEVICE_NAME) -o $@.its -k $@ \
$(if $(word 2,$(1)),-d $(word 2,$(1))) -C $(word 1,$(1)) \
$(if $(findstring with-rootfs,$(word 3,$(1))),-r $(IMAGE_ROOTFS)) \
+ $(if $(findstring with-initrd,$(word 3,$(1))), \
+ $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS_SEPERATE), \
+ -i $(KERNEL_BUILD_DIR)/initrd.cpio$(strip $(call Build/initrd_compression)))) \
-a $(KERNEL_LOADADDR) -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
$(if $(DEVICE_FDT_NUM),-n $(DEVICE_FDT_NUM)) \
-c $(if $(DEVICE_DTS_CONFIG),$(DEVICE_DTS_CONFIG),"config@1") \
@@ -450,6 +461,22 @@ define Build/uImage
mv $@.new $@
endef
+define Build/uImage-with-ramdisk
+ mkimage \
+ -A $(LINUX_KARCH) \
+ -O linux \
+ -T kernel \
+ -C $(word 1,$(1)) \
+ -a $(KERNEL_LOADADDR) \
+ -e $(if $(KERNEL_ENTRY),$(KERNEL_ENTRY),$(KERNEL_LOADADDR)) \
+ -i $(KERNEL_BUILD_DIR)/initrd.cpio.$(strip $(call Build/initrd_compression)) \
+ -n '$(if $(UIMAGE_NAME),$(UIMAGE_NAME),$(call toupper,$(LINUX_KARCH)) $(VERSION_DIST) Linux-$(LINUX_VERSION))' \
+ $(if $(UIMAGE_MAGIC),-M $(UIMAGE_MAGIC)) \
+ $(wordlist 2,$(words $(1)),$(1)) \
+ -d $@ $@.new
+ mv $@.new $@
+endef
+
define Build/xor-image
$(STAGING_DIR_HOST)/bin/xorimage -i $@ -o $@.xor $(1)
mv $@.xor $@
diff --git a/include/kernel-defaults.mk b/include/kernel-defaults.mk
index 8293956f6b..4b39296f8c 100644
--- a/include/kernel-defaults.mk
+++ b/include/kernel-defaults.mk
@@ -48,6 +48,13 @@ else
endif
ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
+ ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS_SEPERATE),y)
+ define Kernel/SetInitramfs/PreConfigure
+ grep -v -e CONFIG_BLK_DEV_INITRD $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
+ echo 'CONFIG_BLK_DEV_INITRD=y' >> $(LINUX_DIR)/.config
+ echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
+ endef
+ else
ifeq ($(strip $(CONFIG_EXTERNAL_CPIO)),"")
define Kernel/SetInitramfs/PreConfigure
grep -v -e INITRAMFS -e CONFIG_RD_ -e CONFIG_BLK_DEV_INITRD $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
@@ -60,14 +67,19 @@ ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
echo 'CONFIG_INITRAMFS_SOURCE="$(call qstrip,$(CONFIG_EXTERNAL_CPIO))"' >> $(LINUX_DIR)/.config
endef
endif
+endif
define Kernel/SetInitramfs
rm -f $(LINUX_DIR)/.config.prev
mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
$(call Kernel/SetInitramfs/PreConfigure)
+ ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS_SEPERATE),y)
echo 'CONFIG_INITRAMFS_ROOT_UID=$(shell id -u)' >> $(LINUX_DIR)/.config
echo 'CONFIG_INITRAMFS_ROOT_GID=$(shell id -g)' >> $(LINUX_DIR)/.config
echo "$(if $(CONFIG_TARGET_INITRAMFS_FORCE),CONFIG_INITRAMFS_FORCE=y,# CONFIG_INITRAMFS_FORCE is not set)" >> $(LINUX_DIR)/.config
+ else
+ echo "# CONFIG_INITRAMFS_FORCE is not set" >> $(LINUX_DIR)/.config
+ endif
echo "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_NONE),CONFIG_INITRAMFS_COMPRESSION_NONE=y,# CONFIG_INITRAMFS_COMPRESSION_NONE is not set)" >> $(LINUX_DIR)/.config
echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_GZIP),CONFIG_INITRAMFS_COMPRESSION_GZIP=y\nCONFIG_RD_GZIP=y,# CONFIG_INITRAMFS_COMPRESSION_GZIP is not set\n# CONFIG_RD_GZIP is not set)" >> $(LINUX_DIR)/.config
echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_BZIP2),CONFIG_INITRAMFS_COMPRESSION_BZIP2=y\nCONFIG_RD_BZIP2=y,# CONFIG_INITRAMFS_COMPRESSION_BZIP2 is not set\n# CONFIG_RD_BZIP2 is not set)" >> $(LINUX_DIR)/.config
@@ -147,6 +159,20 @@ define Kernel/CompileImage/Initramfs
$(CP) $(GENERIC_PLATFORM_DIR)/other-files/init $(TARGET_DIR)/init
$(if $(SOURCE_DATE_EPOCH),touch -hcd "@$(SOURCE_DATE_EPOCH)" $(TARGET_DIR)/init)
rm -rf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/usr/initramfs_data.cpio*
+ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS_SEPERATE),y)
+ifeq ($(CONFIG_EXTERNAL_CPIO),y)
+ $(CP) $(CONFIG_EXTERNAL_CPIO) $(KERNEL_BUILD_DIR)/initrd.cpio
+else
+ ( cd $(TARGET_DIR); find . | cpio -o -H newc -R root:root > $(KERNEL_BUILD_DIR)/initrd.cpio )
+endif
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_BZIP2),bzip2 -9 -c < $(KERNEL_BUILD_DIR)/initrd.cpio > $(KERNEL_BUILD_DIR)/initrd.cpio.bzip2)
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_GZIP),gzip -f -S .gzip -9n $(KERNEL_BUILD_DIR)/initrd.cpio)
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZMA),$(STAGING_DIR_HOST)/bin/lzma e -lc1 -lp2 -pb2 $(KERNEL_BUILD_DIR)/initrd.cpio $(KERNEL_BUILD_DIR)/initrd.cpio.lzma)
+# ? $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZO),)
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_XZ),$(STAGING_DIR_HOST)/bin/xz -9 -fz --check=crc32 $(KERNEL_BUILD_DIR)/initrd.cpio)
+# ? $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZ4),)
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_ZSTD),$(STAGING_DIR_HOST)/bin/zstd -T0 -f -o $(KERNEL_BUILD_DIR)/initrd.cpio.zstd $(KERNEL_BUILD_DIR)/initrd.cpio)
+endif
+$(KERNEL_MAKE) $(KERNEL_MAKEOPTS_IMAGE) $(if $(KERNELNAME),$(KERNELNAME),all)
$(call Kernel/CopyImage,-initramfs)
endef
diff --git a/scripts/mkits.sh b/scripts/mkits.sh
index 59ff3a2d15..ecaba8e965 100755
--- a/scripts/mkits.sh
+++ b/scripts/mkits.sh
@@ -24,6 +24,7 @@ usage() {
printf "\n\t-a ==> set load address to 'addr' (hex)"
printf "\n\t-e ==> set entry point to 'entry' (hex)"
printf "\n\t-f ==> set device tree compatible string"
+ printf "\n\t-i ==> include initrd Blob 'initrd'"
printf "\n\t-v ==> set kernel version to 'version'"
printf "\n\t-k ==> include kernel image 'kernel'"
printf "\n\t-D ==> human friendly Device Tree Blob 'name'"
@@ -37,10 +38,11 @@ usage() {
FDTNUM=1
ROOTFSNUM=1
+INITRDNUM=1
HASH=sha1
LOADABLES=
-while getopts ":A:a:c:C:D:d:e:f:k:n:o:v:r:S" OPTION
+while getopts ":A:a:c:C:D:d:e:f:i:k:n:o:v:r:S" OPTION
do
case $OPTION in
A ) ARCH=$OPTARG;;
@@ -51,6 +53,7 @@ do
d ) DTB=$OPTARG;;
e ) ENTRY_ADDR=$OPTARG;;
f ) COMPATIBLE=$OPTARG;;
+ i ) INITRD=$OPTARG;;
k ) KERNEL=$OPTARG;;
n ) FDTNUM=$OPTARG;;
o ) OUTPUT=$OPTARG;;
@@ -96,6 +99,27 @@ if [ -n "${DTB}" ]; then
FDT_PROP="fdt = \"fdt@$FDTNUM\";"
fi
+if [ -n "${INITRD}" ]; then
+ INITRD_NODE="
+ initrd@$INITRDNUM {
+ description = \"${ARCH_UPPER} OpenWrt ${DEVICE} initrd\";
+ ${COMPATIBLE_PROP}
+ data = /incbin/(\"${INITRD}\");
+ type = \"ramdisk\";
+ arch = \"${ARCH}\";
+ os = \"linux\";
+ hash@1 {
+ algo = \"crc32\";
+ };
+ hash@2 {
+ algo = \"${HASH}\";
+ };
+ };
+"
+ INITRD_PROP="ramdisk=\"initrd@${INITRDNUM}\";"
+fi
+
+
if [ -n "${ROOTFS}" ]; then
dd if="${ROOTFS}" of="${ROOTFS}.pagesync" bs=4096 conv=sync
ROOTFS_NODE="
@@ -141,6 +165,7 @@ DATA="/dts-v1/;
algo = \"$HASH\";
};
};
+${INITRD_NODE}
${FDT_NODE}
${ROOTFS_NODE}
};
@@ -153,6 +178,7 @@ ${ROOTFS_NODE}
${FDT_PROP}
${LOADABLES:+loadables = ${LOADABLES};}
${COMPATIBLE_PROP}
+ ${INITRD_PROP}
};
};
};"
diff --git a/scripts/target-metadata.pl b/scripts/target-metadata.pl
index 78f77b16d5..4128d54461 100755
--- a/scripts/target-metadata.pl
+++ b/scripts/target-metadata.pl
@@ -33,6 +33,7 @@ sub target_config_features(@) {
/^fpu$/ and $ret .= "\tselect HAS_FPU\n";
/^spe_fpu$/ and $ret .= "\tselect HAS_SPE_FPU\n";
/^ramdisk$/ and $ret .= "\tselect USES_INITRAMFS\n";
+ /^seperate_ramdisk$/ and $ret .= "\tselect USES_INITRAMFS\n\tselect USES_SEPERATE_INITRAMFS\n";
/^powerpc64$/ and $ret .= "\tselect powerpc64\n";
/^nommu$/ and $ret .= "\tselect NOMMU\n";
/^mips16$/ and $ret .= "\tselect HAS_MIPS16\n";
diff --git a/target/Config.in b/target/Config.in
index 43de4710df..9dbc5ffe46 100644
--- a/target/Config.in
+++ b/target/Config.in
@@ -51,6 +51,9 @@ config USES_DEVICETREE
config USES_INITRAMFS
bool
+config USES_SEPERATE_INITRAMFS
+ bool
+
config USES_SQUASHFS
bool
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 06:54:55 +0000