Root/include/kernel-defaults.mk

Source at commit 5bdb3e2cb76a8b68f51dd09c7e0c56d517945dac created 12 years 8 months ago.
By kaloz, [cns3xxx]: preliminary 3.0 support
1#
2# Copyright (C) 2006-2011 OpenWrt.org
3#
4# This is free software, licensed under the GNU General Public License v2.
5# See /LICENSE for more information.
6#
7
8KERNEL_MAKEOPTS := -C $(LINUX_DIR) \
9    CROSS_COMPILE="$(KERNEL_CROSS)" \
10    ARCH="$(LINUX_KARCH)" \
11    KBUILD_HAVE_NLS=no \
12    CONFIG_SHELL="$(BASH)"
13
14ifdef CONFIG_STRIP_KERNEL_EXPORTS
15  KERNEL_MAKEOPTS += \
16    EXTRA_LDSFLAGS="-I$(KERNEL_BUILD_DIR) -include symtab.h"
17endif
18
19INITRAMFS_EXTRA_FILES ?= $(GENERIC_PLATFORM_DIR)/image/initramfs-base-files.txt
20
21ifneq (,$(KERNEL_CC))
22  KERNEL_MAKEOPTS += CC="$(KERNEL_CC)"
23endif
24
25# defined in quilt.mk
26Kernel/Patch:=$(Kernel/Patch/Default)
27ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"")
28  ifeq ($(strip $(CONFIG_KERNEL_GIT_CLONE_URI)),"")
29    define Kernel/Prepare/Default
30    bzcat $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
31    $(Kernel/Patch)
32    touch $(LINUX_DIR)/.quilt_used
33    endef
34  else
35    ifeq ($(strip $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)),"")
36define Kernel/Prepare/Default
37    git clone $(CONFIG_KERNEL_GIT_CLONE_URI) $(LINUX_DIR)
38    endef
39  else
40    define Kernel/Prepare/Default
41    git clone --reference $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY) $(CONFIG_KERNEL_GIT_CLONE_URI) $(LINUX_DIR)
42    endef
43  endif
44endif
45else
46  define Kernel/Prepare/Default
47    mkdir -p $(KERNEL_BUILD_DIR)
48    if [ -d $(LINUX_DIR) ]; then \
49        rmdir $(LINUX_DIR); \
50    fi
51    ln -s $(CONFIG_EXTERNAL_KERNEL_TREE) $(LINUX_DIR)
52  endef
53endif
54
55ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
56    define Kernel/SetInitramfs
57        mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
58        grep -v -e INITRAMFS -e CONFIG_RD_ -e CONFIG_BLK_DEV_INITRD $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
59        echo 'CONFIG_BLK_DEV_INITRD=y' >> $(LINUX_DIR)/.config
60        echo 'CONFIG_INITRAMFS_SOURCE="$(strip $(TARGET_DIR) $(INITRAMFS_EXTRA_FILES))"' >> $(LINUX_DIR)/.config
61        echo 'CONFIG_INITRAMFS_ROOT_UID=$(shell id -u)' >> $(LINUX_DIR)/.config
62        echo 'CONFIG_INITRAMFS_ROOT_GID=$(shell id -g)' >> $(LINUX_DIR)/.config
63        echo "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_NONE),CONFIG_INITRAMFS_COMPRESSION_NONE=y,# CONFIG_INITRAMFS_COMPRESSION_NONE is not set)" >> $(LINUX_DIR)/.config
64        echo -e "$(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)" >> $(LINUX_DIR)/.config
65        echo -e "$(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)" >> $(LINUX_DIR)/.config
66        echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZMA),CONFIG_INITRAMFS_COMPRESSION_LZMA=y\nCONFIG_RD_LZMA=y,# CONFIG_INITRAMFS_COMPRESSION_LZMA is not set\n# CONFIG_RD_LZMA is not set)" >> $(LINUX_DIR)/.config
67        echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZO),CONFIG_INITRAMFS_COMPRESSION_LZO=y\nCONFIG_RD_LZO=y,# CONFIG_INITRAMFS_COMPRESSION_LZO is not set\n# CONFIG_RD_LZO is not set)" >> $(LINUX_DIR)/.config
68        echo -e "$(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_XZ),CONFIG_INITRAMFS_COMPRESSION_XZ=y\nCONFIG_RD_XZ=y,# CONFIG_INITRAMFS_COMPRESSION_XZ is not set\n# CONFIG_RD_XZ is not set)" >> $(LINUX_DIR)/.config
69    endef
70  else
71    define Kernel/SetInitramfs
72        mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
73        grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
74        echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
75    endef
76endif
77
78define Kernel/Configure/Default
79    $(LINUX_CONF_CMD) > $(LINUX_DIR)/.config.target
80# copy CONFIG_KERNEL_* settings over to .config.target
81    awk '/^(#[[:space:]]+)?CONFIG_KERNEL/{sub("CONFIG_KERNEL_","CONFIG_");print}' $(TOPDIR)/.config >> $(LINUX_DIR)/.config.target
82    echo "# CONFIG_KALLSYMS_EXTRA_PASS is not set" >> $(LINUX_DIR)/.config.target
83    echo "# CONFIG_KALLSYMS_ALL is not set" >> $(LINUX_DIR)/.config.target
84    echo "# CONFIG_KPROBES is not set" >> $(LINUX_DIR)/.config.target
85    $(SCRIPT_DIR)/metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config > $(LINUX_DIR)/.config.override
86    $(SCRIPT_DIR)/kconfig.pl 'm+' '+' $(LINUX_DIR)/.config.target /dev/null $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config
87    $(call Kernel/SetInitramfs)
88    -$(_SINGLE)$(MAKE) $(KERNEL_MAKEOPTS) oldconfig prepare scripts
89    rm -rf $(KERNEL_BUILD_DIR)/modules
90endef
91
92define Kernel/CompileModules/Default
93    rm -f $(LINUX_DIR)/vmlinux $(LINUX_DIR)/System.map
94    +$(MAKE) $(KERNEL_MAKEOPTS) modules
95endef
96
97OBJCOPY_STRIP = -R .reginfo -R .notes -R .note -R .comment -R .mdebug -R .note.gnu.build-id
98
99define Kernel/CompileImage/Default
100    $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS),,rm -f $(TARGET_DIR)/init)
101    +$(MAKE) $(KERNEL_MAKEOPTS) $(KERNELNAME)
102    $(KERNEL_CROSS)objcopy -O binary $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(LINUX_KERNEL)
103    $(KERNEL_CROSS)objcopy $(OBJCOPY_STRIP) -S $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux.elf
104endef
105
106define Kernel/Clean/Default
107    rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.configured
108    rm -f $(LINUX_KERNEL)
109    $(_SINGLE)$(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
110endef
111
112
113

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