[Buildroot] RFC Building Linux under Buildroot.
Ulf Samuelsson
ulf at atmel.com
Wed Apr 18 08:45:02 UTC 2007
I enclose the Makefile.in and Config.in I use to Build Linux.
I have them in my targets/linux directory.
Would like to have comments on that before I generate a real patch.
Think it makes for easier reading than the patch.
Basically I would like to bbe able to select the most
common choices using checkboxes, but also allow full flexiubility
by providing a text version as well.
target/linux/Config.in
-----------------------------------------------------------------------
menu "Linux Options"
comment "linux kernel for target device"
config BR2_PACKAGE_LINUX
bool "linux kernel"
default n
help
The Linux kernel.
http://www.kernel.org/
Note: Requires kernel-headers >= 2.6.19 since the other
kernel headers are just that (headers) and not full
kernels. This is a feature.
menu "Linux Binary Type"
choice
prompt "Linux Binary Type"
depends on BR2_PACKAGE_LINUX
default BR2_LINUX_BIN_UIMAGE
help
Select the specific Linux binary type you want to use
config BR2_LINUX_BIN_BZIMAGE
bool "bzImage"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.19.2
config BR2_LINUX_BIN_ZIMAGE
bool "zImage"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.19.2
config BR2_LINUX_BIN_VMLINUX
bool "vmlinux"
depends BR2_PACKAGE_LINUX
help
Build vmlinux binary
config BR2_LINUX_BIN_UIMAGE
bool "uImage"
depends BR2_PACKAGE_LINUX
help
Build uImage binary
config BR2_LINUX_BIN_CUSTOM
bool "<custom> Linux binary"
depends BR2_PACKAGE_LINUX
help
Build custom Linux binary format
endchoice
config BR2_LINUX_BIN_CUSTOM_BIN
string "custom kernel binary format"
depends on BR2_LINUX_BIN_CUSTOM
default ""
help
Which Linux binary format?
config BR2_PACKAGE_LINUX_FORMAT
string #"kernel binary format"
depends on BR2_PACKAGE_LINUX
default "bzImage" if BR2_LINUX_BIN_BZIMAGE
default "vmlinux" if BR2_LINUX_BIN_VMLINUX
default "zImage" if BR2_LINUX_BIN_ZIMAGE
default $(BR2_LINUX_BIN_CUSTOM_BIN) if BR2_LINUX_BIN_CUSTOM
help
kernel binary format.
Popular values include:
- bzImage
- zImage
- vmlinux
and other, architecture dependant formats.
Note that the default format is supposed to be set by your
board-description, if any.
i386 and compatible default to bzImage if nothing was given
above.
If the above setting is empty, you can change the default
board-imposed value by passing LINUX26_FORMAT=<string> to
make.
endmenu
menu "Linux Kernel Version"
choice
prompt "Linux Kernel Version"
depends on BR2_PACKAGE_LINUX
default BR2_LINUX_2_6_20_4
help
Select the specific Linux version you want to use
config BR2_LINUX_2_6_21_RC5
bool "Linux 2.6.21-rc5"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.21-rc5
config BR2_LINUX_2_6_20_4
bool "Linux 2.6.20.4"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.20.4
config BR2_LINUX_2_6_20
bool "Linux 2.6.20"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.20
config BR2_LINUX_2_6_19_2
bool "Linux 2.6.19.2"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.19.2
config BR2_LINUX_2_6_19
bool "Linux 2.6.19"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.19
config BR2_LINUX_2_6_18
bool "Linux 2.6.18"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.18
config BR2_LINUX_2_6_17
bool "Linux 2.6.17"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.17
config BR2_LINUX_2_6_16
bool "Linux 2.6.16"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.16
config BR2_LINUX_2_6_15
bool "Linux 2.6.15"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.15
config BR2_LINUX_2_6_21
bool "Linux 2.6.21"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.21
config BR2_LINUX_2_6_22
bool "Linux 2.6.22"
depends BR2_PACKAGE_LINUX
help
Linux 2.6.22
config BR2_LINUX_CUSTOM
bool "Linux <custom> version"
depends BR2_PACKAGE_LINUX
help
Linux <your selection>
endchoice
config BR2_CUSTOM_DOWNLOAD_LINUX26_VERSION
string "Linux Tarball version"
depends on BR2_LINUX_CUSTOM
default "linux-2.6.21"
config BR2_CUSTOM_LINUX26_VERSION
string "Linux Version"
depends on BR2_LINUX_CUSTOM
default "linux-2.6.21-version"
config BR2_CUSTOM_LINUX26_RC_PATCH
string "RC patch (if needed)"
depends on BR2_LINUX_CUSTOM
default "patch-2.6.21.1.bz2"
endmenu
menu "Patches"
config BR2_LINUX_BSP_PATCH
string "Atmel additional patch to apply"
default "linux-2.6.20.4-atmel.patch.bz2" if BR2_TARGET_AVR32
default "linux-2.6.20.4-atmel.patch.bz2" if BR2_TARGET_AT91
config BR2_LINUX_BSP_PATCH
string "Additional patch to apply"
depends on ! (BR2_TARGET_AVR32 || BR2_TARGET_AT91)
default ""
endmenu
config BR2_DOWNLOAD_LINUX26_VERSION
string #"Selected Tarball:"
default "2.6.15" if BR2_LINUX_2_6_15
default "2.6.16" if BR2_LINUX_2_6_16
default "2.6.17" if BR2_LINUX_2_6_17
default "2.6.18" if BR2_LINUX_2_6_18
default "2.6.19" if BR2_LINUX_2_6_19
default "2.6.19.2" if BR2_LINUX_2_6_19_2
default "2.6.20" if BR2_LINUX_2_6_20
default "2.6.20.4" if BR2_LINUX_2_6_20_4
default "2.6.20" if BR2_LINUX_2_6_21_RC5
default "2.6.21" if BR2_LINUX_2_6_21
default "2.6.22" if BR2_LINUX_2_6_22
default $(BR2_CUSTOM_DOWNLOAD_LINUX26_VERSION) if BR2_LINUX_CUSTOM
config BR2_LINUX26_VERSION
string #"Selected Version:"
default "2.6.15" if BR2_LINUX_2_6_15
default "2.6.16" if BR2_LINUX_2_6_16
default "2.6.17" if BR2_LINUX_2_6_17
default "2.6.18" if BR2_LINUX_2_6_18
default "2.6.19" if BR2_LINUX_2_6_19
default "2.6.19.2" if BR2_LINUX_2_6_19_2
default "2.6.20" if BR2_LINUX_2_6_20
default "2.6.20.4" if BR2_LINUX_2_6_20_4
default "2.6.21-rc5" if BR2_LINUX_2_6_21_RC5
default "2.6.21" if BR2_LINUX_2_6_21
default "2.6.22" if BR2_LINUX_2_6_22
default $(BR2_CUSTOM_LINUX26_VERSION) if BR2_LINUX_CUSTOM
config BR2_LINUX26_RC_PATCH
string #"Selected Patch:"
default "" if BR2_LINUX_2_6_15
default "" if BR2_LINUX_2_6_16
default "" if BR2_LINUX_2_6_17
default "" if BR2_LINUX_2_6_18
default "" if BR2_LINUX_2_6_19
default "" if BR2_LINUX_2_6_19_2
default "" if BR2_LINUX_2_6_20
default "" if BR2_LINUX_2_6_20_4
default "patch-2.6.21-rc5.bz2" if BR2_LINUX_2_6_21_RC5
default "" if BR2_LINUX_2_6_21
default "" if BR2_LINUX_2_6_22
default $(BR2_CUSTOM_LINUX26_RC_PATCH) if BR2_LINUX_CUSTOM
comment "linux kernel configuration for target device"
config BR2_LINUX26_DEFCONFIG
bool "Build <board>_defconfig "
depends BR2_PACKAGE_LINUX
default n
help
Configure Linux by make <board>_defconfig
menu "Configuration file"
depends on BR2_PACKAGE_LINUX && ! BR2_LINUX26_DEFCONFIG
config BR2_PACKAGE_LINUX_KCONFIG
string ".config file"
depends on BR2_PACKAGE_LINUX && ! BR2_LINUX26_DEFCONFIG
default
"$(BR2_BOARD_PATH)/$(BR2_BOARD_NAME)-linux-$(LINUX26_VERSION).config"
help
kernel's .config to use to build a kernel for the target.
If the above setting is empty, you can change the default
board-imposed value by passing LINUX26_KCONFIG=<path> to
make.
config BR2_LINUX_CUSTOMIZE
bool "Customize Linux configuration before build"
depends BR2_PACKAGE_LINUX
default n
help
Configure Linux by make xconfig
endmenu
comment "Destinations for linux kernel binaries"
config BR2_LINUX_IN_ROOTFS
bool "Copy kernel to root file system"
depends BR2_PACKAGE_LINUX
default n
help
Copy kernel to <root>/boot directory
menu "Secondary copy"
config BR2_LINUX_COPYTO
string "also copy the image to..."
depends BR2_PACKAGE_LINUX
default "/tftpboot"
help
Copy kernel to secondary location
endmenu
endmenu
=========================
target/linux/Makefile.in
#############################################################
#
# Linux kernel 2.6 target
#
#############################################################
ifneq ($(filter $(TARGETS),linux26),)
ifeq ($(LINUX_HEADERS_VERSION),) # -------------------
# Version of Linux to download and then apply patches to
# XXX: andersee, i do not understand why we need this (BF)
ifeq ($(DOWNLOAD_LINUX26_VERSION),)
DOWNLOAD_LINUX26_VERSION=2.6.19.2
endif
# Version of Linux after applying any patches
LINUX26_VERSION=$(DOWNLOAD_LINUX26_VERSION)
else # ---------------------------------------------------
# Define DOWNLOAD_LINUX26_VERSION unless defined
ifeq ($(strip $(DOWNLOAD_LINUX26_VERSION)),)
DOWNLOAD_LINUX26_VERSION=$(LINUX_HEADERS_VERSION)
endif
# Define LINUX26_VERSION unless defined
ifeq ($(strip $(LINUX26_VERSION)),)
LINUX26_VERSION=$(LINUX_HEADERS_VERSION)
endif
endif # ---------------------------------------------------
# Handle case when we want to build using an "rc" patch
# Example: to build 2.6.21-rc1 you need to:
# * Download linux-2.6.20
# * Apply patch-2.6.21-rc1
LINUX26_SOURCE:=linux-$(DOWNLOAD_LINUX26_VERSION).tar.bz2
LINUX26_SITE=http://ftp.kernel.org/pub/linux/kernel/v2.6
LINUX26_BZCAT:=$(BZCAT)
# Linux kernel binary
ifeq ($(strip $(LINUX26_FORMAT)),)
#LINUX26_FORMAT=bzImage
#LINUX26_FORMAT=vmlinux
LINUX26_FORMAT=zImage
endif
# Linux kernel configuration file
ifeq ($(strip $(LINUX26_KCONFIG)),)
LINUX26_KCONFIG=$(BR2_BOARD_PATH)/linux26.config
endif
# File name for the Linux kernel binary
ifeq ($(strip $(LINUX26_KERNEL)),)
#LINUX26_KERNEL=linux-kernel-$(LINUX26_VERSION)-$(KERNEL_ARCH)
LINUX26_KERNEL:=$(BOARD_NAME)-linux-$(LINUX26_VERSION)-$(DATE).gz
endif
ifeq ($(strip $(LINUX26_BINLOC)),)
LINUX26_BINLOC=$(LINUX26_FORMAT)
endif
# Put binary in root file system
ifeq ($(strip $(BR2_LINUX_IN_ROOTFS)),y)
ifeq ($(strip $(LINUX26_TARGET)),)
LINUX26_TARGET:=$(TARGET_DIR)/boot/$(LINUX26_BINLOC)
endif
else
LINUX26_TARGET:=$(BINARIES_DIR)/$(LINUX26_KERNEL)
endif
endif
ifeq ($(strip $(LINUX26_BUILD_DIR)),)
LINUX26_BUILD_DIR=$(TARGET_BUILD_DIR)
endif
ifeq ($(strip $(BR2_LINUX26_DEFCONFIG)),y)
LINUX26_DEFCONFIG=$(BOARD_NAME)_defconfig
endif
# Version of Linux AFTER patches
LINUX26_DIR=$(LINUX26_BUILD_DIR)/linux-$(LINUX26_VERSION)
# for packages that need it
LINUX_VERSION=$(LINUX26_VERSION)
LINUX_DIR=$(LINUX26_DIR)
LINUX_KERNEL=$(LINUX26_KERNEL)
# kernel patches
ifeq ($(strip $(subst ",, $(LINUX26_PATCH_DIR))),)
LINUX26_PATCH_DIR:=$(BR2_BOARD_PATH)/kernel-patches/
endif
PATCH_DIR=$(strip $(subst ",, $(LINUX26_PATCH_DIR)))
LINUX26_MAKE_FLAGS = $(TARGET_CONFIGURE_OPTS) ARCH=$(KERNEL_ARCH) \
PATH=$(TARGET_PATH) INSTALL_MOD_PATH=$(TARGET_DIR) \
CROSS_COMPILE=$(KERNEL_CROSS)
$(LINUX26_KCONFIG):
@if [ ! -f "$(LINUX26_KCONFIG)" ] ; then \
echo ""; \
echo "You should create a .config for your kernel"; \
echo "and install it as $(LINUX26_KCONFIG)"; \
echo ""; \
sleep 5; \
fi;
# Check if we have a release candidate.
# This makes life complex
# To build linux-2.6.21-rc2 you need to:
# * Download linux.2.6.20.tar.bz2
# * Download patch-2.6.21-rc2.bz2
# I:E you have to download the *previous* major version
ifneq ($(LINUX26_RC_PATCH),)
# We have a "release candidate"
LINUX26_RC_PATCH_SOURCE:=
$(TARGET_BUILD_DIR)/linux-patch/$(LINUX26_RC_PATCH)
# Create rule to download the patch
$(LINUX26_RC_PATCH_SOURCE):
mkdir -p $(TARGET_BUILD_DIR)/linux-patch/
$(WGET) -P $(TARGET_BUILD_DIR)/linux-patch
$(LINUX26_SITE)/$(LINUX26_RC_PATCH)
# $(LINUX26_BZCAT)
$(TARGET_BUILD_DIR)/linux-patch/$(LINUX26_RC_PATCH).bz2
else
# We have a vanilla style linux kernel
LINUX26_RC_PATCH_SOURCE:=
endif
ifneq ($(strip $(LINUX_HEADERS_SOURCE)),$(strip $(LINUX26_SOURCE)))
$(DL_DIR)/$(LINUX26_SOURCE):
$(WGET) -P $(DL_DIR) $(LINUX26_SITE)/$(LINUX26_SOURCE)
endif
$(LINUX26_DIR)/.unpacked: $(DL_DIR)/$(LINUX26_SOURCE)
$(LINUX26_RC_PATCH_SOURCE)
rm -rf $(LINUX26_DIR)
$(LINUX26_BZCAT) $(DL_DIR)/$(LINUX26_SOURCE) | tar -C
$(LINUX26_BUILD_DIR) $(TAR_OPTIONS) -
ifneq ($(DOWNLOAD_LINUX26_VERSION),$(LINUX26_VERSION))
# Rename the dir from the downloaded version to the AFTER patch version
mv -f $(LINUX26_BUILD_DIR)/linux-$(DOWNLOAD_LINUX26_VERSION)
$(LINUX26_DIR)
endif
ifneq ($(LINUX26_RC_PATCH),)
-(cd $(LINUX26_DIR); $(LINUX26_BZCAT) $(LINUX26_RC_PATCH_SOURCE) |
patch -p1)
endif
-(cd $(TOOL_BUILD_DIR); ln -snf $(LINUX26_DIR) linux)
rm -f $(LINUX26_DIR)/.kernelrelease
echo $(LINUX26_VERSION) > $(LINUX26_DIR)/.kernelrelease
touch $@
$(LINUX26_DIR)/.patched: $(LINUX26_DIR)/.unpacked
echo $(PATCH_DIR)
toolchain/patch-kernel.sh $(LINUX26_DIR) $(LINUX26_PATCH_DIR)
touch $@
$(LINUX26_DIR)/.configured: $(LINUX26_DIR)/.patched $(LINUX26_KCONFIG)
ifeq ($(strip $(BR2_LINUX26_DEFCONFIG)),y)
make -C $(LINUX26_DIR) $(BOARD_NAME)_defconfig
else
cp -dpf $(LINUX26_KCONFIG) $(LINUX26_DIR)/.config
endif
ifeq ($(strip $(BR2_LINUX_CUSTOMIZE)),y)
make xconfig
endif
$(SED) '/CONFIG_AEABI/d' $(LINUX26_DIR)/.config
ifeq ($(BR2_ARM_EABI),y)
echo "CONFIG_AEABI=y" >> $(LINUX26_DIR)/.config
$(SED) '/CONFIG_OABI_COMPAT/d' $(LINUX26_DIR)/.config
echo "# CONFIG_OABI_COMPAT is not set" >> $(LINUX26_DIR)/.config
else
echo "# CONFIG_AEABI is not set" >> $(LINUX26_DIR)/.config
endif
$(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) oldconfig
include/linux/version.h
touch $@
$(LINUX26_DIR)/.depend_done: $(LINUX26_DIR)/.configured
$(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) prepare
touch $@
$(LINUX26_DIR)/$(LINUX26_FORMAT): $(LINUX26_DIR)/.depend_done
$(STAGING_DIR)/include/linux/version.h
$(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) $(LINUX26_FORMAT)
$(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) modules
touch -c $@
#-----------------------------------------------------------------------------------
# Rule can be enabled by setting
# LINUX26_TARGET:= $(TARGET_DIR)/boot/$(LINUX26_BINLOC)
#
$(TARGET_DIR)/boot/$(LINUX26_FORMAT): $(LINUX26_DIR)/$(LINUX26_FORMAT)
[ -d $(TARGET_DIR)/boot/ ] || mkdir $(TARGET_DIR)/boot
cp -a $(LINUX26_DIR)/$(LINUX26_FORMAT) $(LINUX26_DIR)/System.map
$(TARGET_DIR)/boot/$(LINUX26_FORMAT)
touch -c $@
#-----------------------------------------------------------------------------------
# Rule can be enabled by setting
# LINUX26_TARGET:= $(BINARIES_DIR)/$(LINUX26_KERNEL)
# LINUX26_FORMAT:= vmlinux
$(BINARIES_DIR)/$(LINUX26_KERNEL): $(TARGET_BUILD_DIR)/uImage
cp -dpf $(TARGET_BUILD_DIR)/uImage $(BINARIES_DIR)/$(LINUX26_KERNEL)
cp -dpf $(TARGET_BUILD_DIR)/uImage /tftpboot/$(LINUX26_KERNEL)
mkdir -p $(TARGET_DIR)/boot/
cp -dpf $(LINUX26_DIR)/.config
$(TARGET_DIR)/boot/$(BOARD_NAME)-linux-$(LINUX26_VERSION).config
cp -dpf .config $(TARGET_DIR)/boot/$(BOARD_NAME)-buildroot.config
cp -dpf $(BUSYBOX_DIR)/.config $(TARGET_DIR)/boot/busybox.config
$(TARGET_BUILD_DIR)/linux.bin: $(LINUX26_DIR)/vmlinux
${KERNEL_CROSS}objcopy -O binary -S $(LINUX26_DIR)/vmlinux
$(TARGET_BUILD_DIR)/linux.bin
$(TARGET_BUILD_DIR)/uImage: $(TARGET_BUILD_DIR)/linux.bin
gzip -v9 -c $(TARGET_BUILD_DIR)/linux.bin >
$(TARGET_BUILD_DIR)/linux.bin.gz
/usr/local/bin/mkimage -A arm \
-O linux \
-C gzip \
-a 0x20008000 \
-e 0x20008000 \
-d $(TARGET_BUILD_DIR)/linux.bin.gz \
$(TARGET_BUILD_DIR)/uImage
rm -f $(TARGET_BUILD_DIR)/linux.bin.gz
#-----------------------------------------------------------------------------------
$(TARGET_DIR)/lib/modules/$(LINUX26_VERSION)/modules.dep:
$(LINUX26_TARGET) $(TARGET_DIR)/sbin/modprobe
rm -rf $(TARGET_DIR)/lib/modules/$(LINUX26_VERSION)
rm -f $(TARGET_DIR)/sbin/cardmgr
$(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) \
DEPMOD=$(STAGING_DIR)/bin/$(GNU_TARGET_NAME)-depmod26 \
INSTALL_MOD_PATH=$(TARGET_DIR) modules_install
(cd $(TARGET_DIR)/lib/modules; \
rm -f drivers; \
ln -s $(LINUX26_VERSION)/kernel/drivers .)
chmod a+x target/depmod.pl
target/depmod.pl \
-b $(TARGET_DIR)/lib/modules/$(DOWNLOAD_LINUX26_VERSION) \
-k $(LINUX_DIR)/$(LINUX_BINLOC) \
-F $(LINUX_DIR)/System.map \
> $(TARGET_DIR)/lib/modules/$(shell cat
$(LINUX_DIR)/include/config/kernel.release 2> /dev/null)/modules.dep
rm -f $(TARGET_DIR)/lib/modules/$(LINUX26_VERSION)/build
touch -c $@
$(STAGING_DIR)/include/linux/version.h: $(LINUX26_DIR)/.configured
mkdir -p $(STAGING_DIR)/include
tar -ch -C $(LINUX26_DIR)/include -f - linux | tar -xf - -C
$(STAGING_DIR)/include/
tar -ch -C $(LINUX26_DIR)/include -f - asm | tar -xf - -C
$(STAGING_DIR)/include/
linux26-menuconfig: $(LINUX26_DIR)/.patched host-sed
[ -f $(LINUX26_DIR)/.config ] || cp $(LINUX26_KCONFIG)
$(LINUX26_DIR)/.config
$(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) menuconfig
-[ -f $(LINUX26_DIR)/.config ] && touch $(LINUX26_DIR)/.configured
linux26: cross-depmod26
$(TARGET_DIR)/lib/modules/$(LINUX26_VERSION)/modules.dep
$(LINUX26_TARGET)
linux26-source: $(DL_DIR)/$(LINUX26_SOURCE)
# This has been renamed so we do _NOT_ by default run this on 'make
clean'
linux26clean:
rm -f $(LINUX26_KERNEL)
-$(MAKE) PATH=$(TARGET_PATH) -C $(LINUX26_DIR) clean
linux26-dirclean:
rm -rf $(LINUX26_DIR)
linux-update:
cp -dpf $(LINUX26_DIR)/.config $(LINUX26_KCONFIG)
linux-test:
@echo "BR2_PACKAGE_LINUX" $(BR2_PACKAGE_LINUX)
@echo "BR2_CUSTOM_DOWNLOAD_LINUX26_VERSION"
$(BR2_CUSTOM_DOWNLOAD_LINUX26_VERSION)
@echo "BR2_CUSTOM_LINUX26_VERSION" $(BR2_CUSTOM_LINUX26_VERSION)
@echo "BR2_CUSTOM_LINUX26_RC_PATCH" $(BR2_CUSTOM_LINUX26_RC_PATCH)
@echo "BR2_LINUX_BSP_PATCH" $(BR2_LINUX_BSP_PATCH)
@echo "BR2_DOWNLOAD_LINUX26_VERSION" $(BR2_DOWNLOAD_LINUX26_VERSION)
@echo "BR2_LINUX26_VERSION" $(BR2_LINUX26_VERSION)
@echo "BR2_LINUX26_RC_PATCH" $(BR2_LINUX26_RC_PATCH)
@echo "BR2_PACKAGE_LINUX_KCONFIG" $(BR2_PACKAGE_LINUX_KCONFIG)
@echo "BR2_LINUX_BIN_CUSTOM" $(BR2_LINUX_BIN_CUSTOM)
@echo "BR2_PACKAGE_LINUX_FORMAT" $(BR2_PACKAGE_LINUX_FORMAT)
@echo "BR2_LINUX_IN_ROOTFS" $(BR2_LINUX_IN_ROOTFS)
Best Regards
Ulf Samuelsson
More information about the buildroot
mailing list