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
   8 ifeq ($(DUMP),1)
   9   KERNEL?=<KERNEL>
  10   BOARD?=<BOARD>
  11   LINUX_VERSION?=<LINUX_VERSION>
  12 else
  13   include $(INCLUDE_DIR)/target.mk
  14
  15   ifeq ($(KERNEL),2.6)
  16     LINUX_KMOD_SUFFIX=ko
  17   else
  18     LINUX_KMOD_SUFFIX=o
  19   endif
  20
  21   ifneq (,$(findstring uml,$(BOARD)))
  22     KERNEL_CC:=$(HOSTCC)
  23     KERNEL_CROSS:=
  24   else
  25     KERNEL_CC:=$(TARGET_CC)
  26     KERNEL_CROSS:=$(TARGET_CROSS)
  27   endif
  28
  29   PLATFORM_DIR := $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL)
  30   KERNEL_BUILD_DIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
  31   LINUX_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
  32
  33   MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
  34   MODULES_DIR := $(KERNEL_BUILD_DIR)/modules/$(MODULES_SUBDIR)
  35   TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
  36
  37   LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
  38
  39   LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
  40   LINUX_SITE:=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
  41            http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
  42            http://www.kernel.org/pub/linux/kernel/v$(KERNEL) \
  43            http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)
  44
  45 endif
  46
  47
  48 define KernelPackage/Defaults
  49   FILES:=
  50   KCONFIG:=m
  51   AUTOLOAD:=
  52 endef
  53
  54 define ModuleAutoLoad
  55         export modules=; \
  56         add_module() { \
  57                 mkdir -p $(2)/etc/modules.d; \
  58                 ( \
  59                         for mod in $$$$$$$$2; do \
  60                                 getvar mod; \
  61                         done \
  62                 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
  63                 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
  64         }; \
  65         $(3) \
  66         if [ -n "$$$$$$$$modules" ]; then \
  67                 mkdir -p $(2)/etc/modules.d; \
  68                 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
  69                 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
  70                 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
  71                 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
  72                 chmod 0755 $(2)/CONTROL/postinst; \
  73         fi
  74 endef
  75
  76
  77 define KernelPackage
  78   NAME:=$(1)
  79   $(eval $(call Package/Default))
  80   $(eval $(call KernelPackage/Defaults))
  81   $(eval $(call KernelPackage/$(1)))
  82   $(eval $(call KernelPackage/$(1)/$(KERNEL)))
  83   $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
  84
  85   define Package/kmod-$(1)
  86     TITLE:=$(TITLE)
  87     SECTION:=kernel
  88     CATEGORY:=Kernel modules
  89     DEFAULT:=$(KMOD_DEFAULT)
  90     DESCRIPTION:=$(DESCRIPTION)
  91     EXTRA_DEPENDS:='kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))'
  92     $(call KernelPackage/$(1))
  93     $(call KernelPackage/$(1)/$(KERNEL))
  94     $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
  95   endef
  96
  97   ifeq ($(findstring m,$(KCONFIG)),m)
  98     ifneq ($(strip $(FILES)),)
  99       define Package/kmod-$(1)/install
 100                 mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
 101                 $(CP) $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
 102                 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
 103                 $(call KernelPackage/$(1)/install,$$(1))
 104       endef
 105     endif
 106   endif
 107   $$(eval $$(call BuildPackage,kmod-$(1)))
 108 endef
 109
 110 define AutoLoad
 111   add_module $(1) "$(2)";
 112 endef
 113