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   GENERIC_PLATFORM_DIR := $(TOPDIR)/target/linux/generic-$(KERNEL)
  31   KERNEL_BUILD_DIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
  32   LINUX_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
  33
  34   MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
  35   MODULES_DIR := $(KERNEL_BUILD_DIR)/modules/$(MODULES_SUBDIR)
  36   TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
  37
  38   LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
  39
  40   LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
  41   LINUX_SITE:=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
  42            http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
  43            http://www.kernel.org/pub/linux/kernel/v$(KERNEL) \
  44            http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)
  45
  46 endif
  47
  48
  49 define KernelPackage/Defaults
  50   FILES:=
  51   KCONFIG:=m
  52   AUTOLOAD:=
  53 endef
  54
  55 define ModuleAutoLoad
  56         export modules=; \
  57         add_module() { \
  58                 mkdir -p $(2)/etc/modules.d; \
  59                 ( \
  60                         for mod in $$$$$$$$2; do \
  61                                 getvar mod; \
  62                         done \
  63                 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
  64                 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
  65         }; \
  66         $(3) \
  67         if [ -n "$$$$$$$$modules" ]; then \
  68                 mkdir -p $(2)/etc/modules.d; \
  69                 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
  70                 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
  71                 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
  72                 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
  73                 chmod 0755 $(2)/CONTROL/postinst; \
  74         fi
  75 endef
  76
  77
  78 define KernelPackage
  79   NAME:=$(1)
  80   $(eval $(call Package/Default))
  81   $(eval $(call KernelPackage/Defaults))
  82   $(eval $(call KernelPackage/$(1)))
  83   $(eval $(call KernelPackage/$(1)/$(KERNEL)))
  84   $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
  85
  86   define Package/kmod-$(1)
  87     TITLE:=$(TITLE)
  88     SECTION:=kernel
  89     CATEGORY:=Kernel modules
  90     DEFAULT:=$(KMOD_DEFAULT)
  91     DESCRIPTION:=$(DESCRIPTION)
  92     EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
  93     $(call KernelPackage/$(1))
  94     $(call KernelPackage/$(1)/$(KERNEL))
  95     $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
  96   endef
  97
  98   ifeq ($(findstring m,$(KCONFIG)),m)
  99     ifneq ($(strip $(FILES)),)
 100       define Package/kmod-$(1)/install
 101                 mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
 102                 $(CP) $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
 103                 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
 104                 $(call KernelPackage/$(1)/install,$$(1))
 105       endef
 106     endif
 107   endif
 108   $$(eval $$(call BuildPackage,kmod-$(1)))
 109 endef
 110
 111 define AutoLoad
 112   add_module $(1) "$(2)";
 113 endef
 114