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   PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
  47
  48 endif
  49
  50
  51 define KernelPackage/Defaults
  52   FILES:=
  53   KCONFIG:=m
  54   AUTOLOAD:=
  55 endef
  56
  57 define ModuleAutoLoad
  58         export modules=; \
  59         add_module() { \
  60                 mkdir -p $(2)/etc/modules.d; \
  61                 ( \
  62                         for mod in $$$$$$$$2; do \
  63                                 getvar mod; \
  64                         done \
  65                 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
  66                 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
  67         }; \
  68         $(3) \
  69         if [ -n "$$$$$$$$modules" ]; then \
  70                 mkdir -p $(2)/etc/modules.d; \
  71                 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
  72                 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
  73                 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
  74                 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
  75                 chmod 0755 $(2)/CONTROL/postinst; \
  76         fi
  77 endef
  78
  79
  80 define KernelPackage
  81   NAME:=$(1)
  82   $(eval $(call Package/Default))
  83   $(eval $(call KernelPackage/Defaults))
  84   $(eval $(call KernelPackage/$(1)))
  85   $(eval $(call KernelPackage/$(1)/$(KERNEL)))
  86   $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
  87
  88   define Package/kmod-$(1)
  89     TITLE:=$(TITLE)
  90     SECTION:=kernel
  91     CATEGORY:=Kernel modules
  92     DEFAULT:=$(KMOD_DEFAULT)
  93     DESCRIPTION:=$(DESCRIPTION)
  94     EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
  95     $(call KernelPackage/$(1))
  96     $(call KernelPackage/$(1)/$(KERNEL))
  97     $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
  98   endef
  99
 100   ifeq ($(findstring m,$(KCONFIG)),m)
 101     ifneq ($(strip $(FILES)),)
 102       define Package/kmod-$(1)/install
 103                 mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
 104                 $(CP) -L $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
 105                 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
 106                 $(call KernelPackage/$(1)/install,$$(1))
 107       endef
 108     endif
 109   endif
 110   $$(eval $$(call BuildPackage,kmod-$(1)))
 111 endef
 112
 113 define AutoLoad
 114   add_module $(1) "$(2)";
 115 endef
 116