target/linux/Makefile.in

   1 #############################################################
   2 #
   3 # Linux kernel 2.6 target
   4 #
   5 #############################################################
   6
   7 # XXX This crap should be in project!
   8 ifeq ($(BOARD_PATH),)
   9 BOARD_PATH:=$(strip $(subst ",,$(BR2_BOARD_PATH)))
  10 #"))
  11 endif
  12
  13 # Linux kernel configuration file
  14 # Has to be set by the target/device
  15 # If it is not set by the target/device, then pick the one from .config
  16 ifndef LINUX26_KCONFIG
  17 ifneq ($(strip $(subst ",,$(BR2_PACKAGE_LINUX_KCONFIG))),)
  18 LINUX26_KCONFIG:=$(strip $(subst ",,$(BR2_PACKAGE_LINUX_KCONFIG)))
  19 #"))
  20 #"))
  21 else
  22 # LINUX26_KCONFIG=$(BOARD_PATH)/linux26.config
  23 endif
  24 endif
  25
  26 ifndef LINUX26_FORMAT
  27 ifneq ($(strip $(subst ",,$(BR2_PACKAGE_LINUX_FORMAT))),)
  28 LINUX26_FORMAT:=$(strip $(subst ",,$(BR2_PACKAGE_LINUX_FORMAT)))
  29 #"))
  30 #"))
  31 else
  32 LINUX26_FORMAT:=zImage
  33 endif
  34 endif
  35
  36
  37 ifneq ($(filter $(TARGETS),linux26),)
  38
  39 ifeq ($(DOWNLOAD_LINUX26_VERSION),)
  40 # User did not define linux version, try using headers
  41 ifeq ($(LINUX_HEADERS_VERSION),)
  42 # We did not have headers (this is for real???)
  43 # Version of linuc before patches
  44 DOWNLOAD_LINUX26_VERSION=2.6.22.1
  45 # Version of Linux after applying any patches
  46 LINUX26_VERSION=2.6.22.1
  47 else
  48 # OK, we have headers, use them...
  49 DOWNLOAD_LINUX26_VERSION=$(LINUX_HEADERS_VERSION)
  50 LINUX26_VERSION=$(LINUX_HEADERS_VERSION)
  51 endif
  52 endif
  53
  54 LINUX26_SOURCE=linux-$(DOWNLOAD_LINUX26_VERSION).tar.bz2
  55 LINUX26_BZCAT:=$(BZCAT)
  56 LINUX26_SITE=$(BR2_KERNEL_MIRROR)/linux/kernel/v2.6
  57
  58
  59 # Has to be set by the target/device
  60 ifndef LINUX26_BINLOC
  61 # default:
  62 ifeq ($(LINUX26_FORMAT),vmlinux)
  63 LINUX26_BINLOC=$(LINUX26_FORMAT)
  64 else
  65 LINUX26_BINLOC=arch/$(KERNEL_ARCH)/boot/$(LINUX26_FORMAT)
  66 endif
  67 endif
  68
  69 # File name for the Linux kernel binary
  70 ifndef LINUX26_KERNEL
  71 LINUX26_KERNEL=$(BINARIES_DIR)/linux-kernel-$(LINUX26_VERSION)-$(KERNEL_ARCH)
  72 endif
  73
  74 # Version of Linux AFTER patches
  75 LINUX26_DIR=$(PROJECT_BUILD_DIR)/linux-$(LINUX26_VERSION)
  76
  77 # for packages that need it
  78 LINUX_VERSION:=$(LINUX26_VERSION)
  79 LINUX_DIR=$(LINUX26_DIR)
  80 LINUX_KERNEL=$(LINUX26_KERNEL)
  81
  82 # kernel patches
  83 ifeq ($(strip $(LINUX26_PATCH_DIR)),)
  84 ifneq ($(BOARD_PATH),)
  85 LINUX26_PATCH_DIR:=$(BOARD_PATH)/kernel-patches/
  86 #"))
  87 endif
  88 endif
  89 # XXX FIXME: using -fstack-protector-all -mcmodel=kernel
  90 # should be perfectly fine but perhaps needs a config symbol set in
  91 # the kernel.config
  92 __LINUX26_NO_PIC=-fPIC -fpic -DPIC -fwrapv -ftrapv \
  93         -fstack-protector -fstack-protector-all
  94 LINUX26_MAKE_FLAGS = HOSTCC="$(HOSTCC)" HOSTCFLAGS="$(HOSTCFLAGS)" \
  95         ARCH=$(KERNEL_ARCH) \
  96         CFLAGS_KERNEL="$(filter-out $(__LINUX26_NO_PIC),$(TARGET_CFLAGS))" \
  97         INSTALL_MOD_PATH=$(TARGET_DIR) \
  98         CROSS_COMPILE=$(KERNEL_CROSS) \
  99         LDFLAGS="$(TARGET_LDFLAGS)" \
 100         LZMA="$(LZMA)"
 101
 102 $(LINUX26_KCONFIG):
 103         @if [ ! -f "$(LINUX26_KCONFIG)" ] ; then \
 104                 echo ""; \
 105                 echo "You should create a .config for your kernel"; \
 106                 echo "and install it as $(LINUX26_KCONFIG)"; \
 107                 echo ""; \
 108                 sleep 5; \
 109         fi
 110
 111 # Doesn't make sense to warn about a missing kernel config
 112 # when we are about to configure.
 113 ifeq (=$(BR2_KERNEL_LINUX)$(BR2_PACKAGE_LINUX_KCONFIG)=,=y=)
 114 ifeq ($(filter -menuconfig linux26-source linux26-unpacked,$(MAKECMDGOALS)),)
 115 ifeq ($(BR2_KERNEL_LINUX)$(realpath $(LINUX26_KCONFIG)),y)
 116 $(error you do not have a linux kernel configuration file)
 117 endif
 118 endif
 119 endif
 120
 121
 122 ifneq ($(strip $(LINUX26_VERSION)),$(strip $(LINUX_HEADERS_VERSION)))
 123 $(DL_DIR)/$(LINUX26_SOURCE):
 124          $(WGET) -P $(DL_DIR) $(LINUX26_SITE)/$(LINUX26_SOURCE)
 125 endif # ($(LINUX26_VERSION),$(LINUX_HEADERS_VERSION))
 126
 127 $(LINUX26_DIR)/.unpacked: $(DL_DIR)/$(LINUX26_SOURCE)
 128         rm -rf $(LINUX26_DIR)
 129         @echo "*** Unpacking kernel source"
 130         $(LINUX26_BZCAT) $(DL_DIR)/$(LINUX26_SOURCE) | tar -C $(PROJECT_BUILD_DIR) $(TAR_OPTIONS) -
 131 ifneq ($(DOWNLOAD_LINUX26_VERSION),$(LINUX26_VERSION))
 132         # Rename the dir from the downloaded version to the AFTER patch version
 133         mv -f $(PROJECT_BUILD_DIR)/linux-$(DOWNLOAD_LINUX26_VERSION) $(LINUX26_DIR)
 134 endif
 135         touch $@
 136
 137 $(LINUX26_DIR)/.patched: $(LINUX26_DIR)/.unpacked $(LINUX_HEADERS_DEPENDS)
 138         toolchain/patch-kernel.sh $(LINUX26_DIR) toolchain/kernel-headers \
 139                 linux-$(LINUX26_VERSION)-\*.patch{,.gz,.bz2}
 140 ifeq ($(BR2_KERNEL_HEADERS_IPMI),y)
 141         toolchain/patch-kernel.sh $(LINUX26_DIR) toolchain/kernel-headers/ipmi \
 142                 linux-$(LINUX26_VERSION)-\*.patch{,.gz,.bz2}
 143 endif
 144 ifeq ($(BR2_KERNEL_HEADERS_LZMA),y)
 145         toolchain/patch-kernel.sh $(LINUX26_DIR) toolchain/kernel-headers/lzma \
 146                 linux-$(LINUX26_VERSION)-\*.patch{,.gz,.bz2}
 147 endif
 148 ifeq ($(BR2_KERNEL_HEADERS_RT),y)
 149         toolchain/patch-kernel.sh $(LINUX26_DIR) $(DL_DIR) $(LINUX_RT_SOURCE)
 150 endif
 151 ifeq ($(BR2_KERNEL_HEADERS_PATCH_DIR),y)
 152         toolchain/patch-kernel.sh $(LINUX26_DIR) $(KERNEL_HEADERS_PATCH_DIR) \
 153                 linux-$(LINUX26_VERSION)-\*.patch{,.gz,.bz2}
 154 endif
 155 ifeq ($(BR2_PACKAGE_OPENSWAN),y)
 156         toolchain/patch-kernel.sh $(LINUX26_DIR) package/openswan \
 157                 linux-$(LINUX26_VERSION)-\*.patch{,.gz,.bz2}
 158 endif
 159 ifneq ($(LINUX26_PATCH_DIR),)
 160         if [ -d $(LINUX26_PATCH_DIR) ] ; then \
 161                 toolchain/patch-kernel.sh $(LINUX26_DIR) $(LINUX26_PATCH_DIR) linux-$(LINUX26_VERSION)\*.patch ; \
 162         fi
 163 endif
 164         touch $@
 165
 166 $(LINUX26_DIR)/.configured: $(LINUX26_DIR)/.patched $(LINUX26_KCONFIG)
 167         cp -dpf $(LINUX26_KCONFIG) $(LINUX26_DIR)/.config
 168         $(SED) '/CONFIG_AEABI=y/d' $(LINUX26_DIR)/.config
 169 ifeq ($(BR2_ARM_EABI),y)
 170         echo "CONFIG_AEABI=y" >> $(LINUX26_DIR)/.config
 171         $(SED) '/CONFIG_OABI_COMPAT/d' $(LINUX26_DIR)/.config
 172         echo "# CONFIG_OABI_COMPAT is not set" >> $(LINUX26_DIR)/.config
 173 else
 174         echo "# CONFIG_AEABI is not set" >> $(LINUX26_DIR)/.config
 175 endif
 176         $(SED) '/CONFIG_CPU_BIG_ENDIAN/d' \
 177                 -e '/CONFIG_CPU_LITTLE_ENDIAN/d' $(LINUX26_DIR)/.config
 178 ifeq ($(BR2_mips),y)
 179         echo "CONFIG_CPU_BIG_ENDIAN=y" >> $(LINUX26_DIR)/.config
 180 endif
 181 ifeq ($(BR2_mipsel),y)
 182         echo "CONFIG_CPU_LITTLE_ENDIAN=y" >> $(LINUX26_DIR)/.config
 183 endif
 184         $(SED) '/CONFIG_IPV6=y/d' $(LINUX26_DIR)/.config
 185 ifeq ($(BR2_INET_IPV6),y)
 186         echo "CONFIG_IPV6=y" >> $(LINUX26_DIR)/.config
 187 else
 188         echo "# CONFIG_IPV6 is not set" >> $(LINUX26_DIR)/.config
 189 endif
 190         $(SED) '/CONFIG_INITRAMFS_SOURCE/d' $(LINUX26_DIR)/.config
 191         $(SED) '/INITRAMFS_ROOT_.ID/d' $(LINUX26_DIR)/.config
 192 ifeq ($(BR2_TARGET_ROOTFS_INITRAMFS),y)
 193         echo "CONFIG_INITRAMFS_SOURCE=\"$(INITRAMFS_TARGET)\"" >> \
 194                 $(LINUX26_DIR)/.config
 195         echo "CONFIG_INITRAMFS_ROOT_UID=0" >> $(LINUX26_DIR)/.config
 196         echo "CONFIG_INITRAMFS_ROOT_GID=0" >> $(LINUX26_DIR)/.config
 197 else
 198         echo "CONFIG_INITRAMFS_SOURCE=\"\"" >> $(LINUX26_DIR)/.config
 199 endif
 200 ifeq ($(BR2_PACKAGE_BUSYBOX_INITRAMFS),y)
 201         # precedence for a small initramfs
 202         $(SED) '/CONFIG_INITRAMFS_SOURCE/d' $(LINUX26_DIR)/.config
 203         $(SED) '/INITRAMFS_ROOT_.ID/d' $(LINUX26_DIR)/.config
 204         echo "CONFIG_INITRAMFS_SOURCE=\"$(BB_INITRAMFS_TARGET)\"" >> \
 205                 $(LINUX26_DIR)/.config
 206         echo "CONFIG_INITRAMFS_ROOT_UID=0" >> $(LINUX26_DIR)/.config
 207         echo "CONFIG_INITRAMFS_ROOT_GID=0" >> $(LINUX26_DIR)/.config
 208 endif
 209         $(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) oldconfig
 210         touch $@
 211
 212 $(LINUX26_DIR)/.depend_done: $(LINUX26_DIR)/.configured
 213         $(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) prepare
 214         touch $@
 215
 216 $(LINUX26_KERNEL): $(INITRAMFS_TARGET) $(BB_INITRAMFS_TARGET) \
 217                 $(LINUX26_DIR)/.depend_done
 218         $(MAKE) $(LINUX26_MAKE_FLAGS) \
 219                 -C $(LINUX26_DIR) $(LINUX26_FORMAT)
 220         cat $(LINUX26_DIR)/$(LINUX26_BINLOC) > $(LINUX26_KERNEL)
 221         touch -c $@
 222
 223 $(TARGET_DIR)/lib/modules/$(LINUX26_VERSION)/modules.dep: $(LINUX26_DIR)/.configured
 224         rm -rf $(TARGET_DIR)/lib/modules/$(LINUX26_VERSION)
 225         rm -f $(TARGET_DIR)/sbin/cardmgr
 226         $(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) modules
 227         $(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) \
 228                 DEPMOD=$(STAGING_DIR)/bin/$(GNU_TARGET_NAME)-depmod26 \
 229                 INSTALL_MOD_PATH=$(TARGET_DIR) modules_install
 230         rm -f $(TARGET_DIR)/lib/modules/$(LINUX26_VERSION)/build
 231         rm -f $(TARGET_DIR)/lib/modules/$(LINUX26_VERSION)/source
 232         $(STAGING_DIR)/bin/$(GNU_TARGET_NAME)-depmod26 -b $(TARGET_DIR) $(LINUX_HEADERS_VERSION)
 233         touch -c $@
 234
 235 linux26-menuconfig: host-sed dirs $(LINUX26_DIR)/.patched
 236         -[ -f $(LINUX26_DIR)/.config ] || cp $(LINUX26_KCONFIG) $(LINUX26_DIR)/.config
 237         $(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) menuconfig
 238         -[ -f $(LINUX26_DIR)/.config ] && touch $(LINUX26_DIR)/.configured
 239
 240 linux26-xconfig: host-sed dirs $(LINUX26_DIR)/.patched
 241         -[ -f $(LINUX26_DIR)/.config ] || cp $(LINUX26_KCONFIG) $(LINUX26_DIR)/.config
 242         $(MAKE) $(LINUX26_MAKE_FLAGS) -C $(LINUX26_DIR) xconfig
 243         -[ -f $(LINUX26_DIR)/.config ] && touch $(LINUX26_DIR)/.configured
 244
 245 linux26: $(LINUX26_KERNEL)
 246
 247 $(LINUX26_DIR)/.modules_installed: $(TARGET_DIR)/lib/modules/$(LINUX26_VERSION)/modules.dep
 248         touch $@
 249
 250 linux26-modules: cross-depmod26 $(LINUX26_DIR)/.modules_installed
 251
 252 linux26-source: $(DL_DIR)/$(LINUX26_SOURCE)
 253
 254 linux26-unpacked: $(LINUX26_DIR)/.patched
 255
 256 linux26-config: host-sed dirs $(LINUX26_DIR)/.configured
 257
 258 linux26-update:
 259         cp -dpf $(LINUX26_DIR)/.config $(LINUX26_KCONFIG)
 260
 261 # force rebuild
 262 linux26-force:
 263         touch $(LINUX26_DIR)/.configured
 264
 265 # This has been renamed so we do _NOT_ by default run this on 'make clean'
 266 linux26clean:
 267         rm -f $(LINUX26_KERNEL) $(LINUX26_DIR)/.configured
 268         -$(MAKE) PATH=$(TARGET_PATH) -C $(LINUX26_DIR) clean
 269
 270 linux26-dirclean:
 271         rm -rf $(LINUX26_DIR)
 272
 273 endif