include/kernel.mk

   1 #
   2 # Copyright (C) 2006 OpenWrt.org
   3 #
   4 # This is free software, licensed under the GNU General Public License v2.
   5 # See /LICENSE for more information.
   6 #
   7 ifeq ($(DUMP),1)
   8   KERNEL:=<KERNEL>
   9   BOARD:=<BOARD>
  10   LINUX_VERSION:=<LINUX_VERSION>
  11 else
  12
  13   include $(TOPDIR)/.kernel.mk
  14   include $(INCLUDE_DIR)/target.mk
  15
  16   # check to see if .kernel.mk matches target.mk
  17   ifeq ($(CONFIG_BOARD)-$(CONFIG_KERNEL),$(BOARD)-$(KERNEL))
  18      LINUX_VERSION:=$(CONFIG_LINUX_VERSION)
  19      LINUX_RELEASE:=$(CONFIG_LINUX_RELEASE)
  20      LINUX_KARCH:=$(CONFIG_LINUX_KARCH)
  21   else
  22   # oops, old .kernel.config; rebuild it (hiding the misleading errors this produces)
  23     $(warning rebuilding .kernel.mk)
  24     $(TOPDIR)/.kernel.mk: FORCE
  25         @$(MAKE) -C $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL) $@ &>/dev/null
  26   endif
  27
  28   ifeq ($(KERNEL),2.6)
  29     LINUX_KMOD_SUFFIX=ko
  30   else
  31     LINUX_KMOD_SUFFIX=o
  32   endif
  33
  34   ifneq (,$(findstring uml,$(BOARD)))
  35     KERNEL_CC:=$(HOSTCC)
  36     KERNEL_CROSS:=
  37   else
  38     KERNEL_CC:=$(TARGET_CC)
  39     KERNEL_CROSS:=$(TARGET_CROSS)
  40   endif
  41
  42   KERNEL_BUILD_DIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
  43   LINUX_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
  44
  45   MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
  46   MODULES_DIR := $(KERNEL_BUILD_DIR)/modules/$(MODULES_SUBDIR)
  47   TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
  48   KMOD_BUILD_DIR := $(KERNEL_BUILD_DIR)/linux-modules
  49
  50   LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
  51 endif
  52
  53
  54 define KernelPackage/Defaults
  55   FILES:=
  56   KCONFIG:=m
  57   AUTOLOAD:=
  58 endef
  59
  60 define ModuleAutoLoad
  61         export modules=; \
  62         add_module() { \
  63                 mkdir -p $(2)/etc/modules.d; \
  64                 ( \
  65                         for mod in $$$$$$$$2; do \
  66                                 getvar mod; \
  67                         done \
  68                 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
  69                 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
  70         }; \
  71         $(3) \
  72         if [ -n "$$$$$$$$modules" ]; then \
  73                 mkdir -p $(2)/etc/modules.d; \
  74                 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
  75                 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
  76                 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
  77                 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
  78                 chmod 0755 $(2)/CONTROL/postinst; \
  79         fi
  80 endef
  81
  82
  83 define KernelPackage
  84   NAME:=$(1)
  85   $(eval $(call KernelPackage/Defaults))
  86   $(eval $(call KernelPackage/$(1)))
  87   $(eval $(call KernelPackage/$(1)/$(KERNEL)))
  88   $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
  89
  90   define Package/kmod-$(1)
  91     TITLE:=$(TITLE)
  92     SECTION:=kernel
  93     CATEGORY:=Kernel modules
  94     DEFAULT:=m
  95     DESCRIPTION:=$(DESCRIPTION)
  96     EXTRA_DEPENDS:='kernel (=$(PKG_VERSION)-$(PKG_RELEASE))'
  97     $(call KernelPackage/$(1))
  98     $(call KernelPackage/$(1)/$(KERNEL))
  99     $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
 100   endef
 101
 102   ifeq ($(findstring m,$(KCONFIG)),m)
 103     ifneq ($(strip $(FILES)),)
 104       define Package/kmod-$(1)/install
 105                 mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
 106                 $(CP) $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
 107                 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
 108                 $(call KernelPackage/$(1)/install,$$(1))
 109       endef
 110     endif
 111   endif
 112   $$(eval $$(call BuildPackage,kmod-$(1)))
 113 endef
 114
 115 define AutoLoad
 116   add_module $(1) "$(2)";
 117 endef
 118
 119
 120 # FIXME: remove this crap
 121 define KMOD_template
 122 ifeq ($$(strip $(4)),)
 123 KDEPEND_$(1):=m
 124 else
 125 KDEPEND_$(1):=$($(4))
 126 endif
 127
 128 IDEPEND_$(1):=kernel ($(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)) $(foreach pkg,$(5),", $(pkg)")
 129
 130 PKG_$(1) := $(PACKAGE_DIR)/kmod-$(2)_$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)_$(ARCH).ipk
 131 I_$(1) := $(KMOD_BUILD_DIR)/ipkg/$(2)
 132
 133 ifeq ($$(KDEPEND_$(1)),m)
 134 ifneq ($$(CONFIG_PACKAGE_KMOD_$(1)),)
 135 TARGETS += $$(PKG_$(1))
 136 endif
 137 ifeq ($$(CONFIG_PACKAGE_KMOD_$(1)),y)
 138 INSTALL_TARGETS += $$(PKG_$(1))
 139 endif
 140 endif
 141
 142 $$(PKG_$(1)): $(LINUX_DIR)/.modules_done
 143         rm -rf $$(I_$(1))
 144         $(SCRIPT_DIR)/make-ipkg-dir.sh $$(I_$(1)) ../control/kmod-$(2).control $(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE) $(ARCH)
 145         echo "Depends: $$(IDEPEND_$(1))" >> $$(I_$(1))/CONTROL/control
 146 ifneq ($(strip $(3)),)
 147         mkdir -p $$(I_$(1))/lib/modules/$(LINUX_VERSION)
 148         $(CP) $(3) $$(I_$(1))/lib/modules/$(LINUX_VERSION)
 149 endif
 150 ifneq ($(6),)
 151         mkdir -p $$(I_$(1))/etc/modules.d
 152         for module in $(7); do \
 153                 echo $$$$module >> $$(I_$(1))/etc/modules.d/$(6)-$(2); \
 154         done
 155         echo "#!/bin/sh" >> $$(I_$(1))/CONTROL/postinst
 156         echo "[ -z \"\$$$$IPKG_INSTROOT\" ] || exit" >> $$(I_$(1))/CONTROL/postinst
 157         echo ". /etc/functions.sh" >> $$(I_$(1))/CONTROL/postinst
 158         echo "load_modules /etc/modules.d/$(6)-$(2)" >> $$(I_$(1))/CONTROL/postinst
 159         chmod 0755 $$(I_$(1))/CONTROL/postinst
 160 endif
 161         $(8)
 162         $(IPKG_BUILD) $$(I_$(1)) $(PACKAGE_DIR)
 163 endef
 164