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