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:=$(TARGET_CROSS)
  27   endif
  28
  29   KERNEL_PATCHVER:=$(shell echo $(LINUX_VERSION) | cut -d. -f1,2,3 | cut -d- -f1)
  30   PLATFORM_DIR := $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL)
  31   PATCH_DIR := ./patches$(shell [ -d "./patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
  32   GENERIC_PLATFORM_DIR := $(TOPDIR)/target/linux/generic-$(KERNEL)
  33   GENERIC_PATCH_DIR := $(GENERIC_PLATFORM_DIR)/patches$(shell [ -d "$(GENERIC_PLATFORM_DIR)/patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
  34   KERNEL_BUILD_DIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
  35   LINUX_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
  36
  37   MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
  38   TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
  39
  40   LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
  41
  42   LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
  43   TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
  44   LINUX_SITE:=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
  45            http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
  46            http://www.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
  47            http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING)
  48
  49   PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
  50
  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 $$$$$$$$2; do \
  66                                 getvar mod; \
  67                         done \
  68                 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
  69                 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
  70         }; \
  71         $(3) \
  72         if [ -n "$$$$$$$$modules" ]; then \
  73                 mkdir -p $(2)/etc/modules.d; \
  74                 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
  75                 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
  76                 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
  77                 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
  78                 chmod 0755 $(2)/CONTROL/postinst; \
  79         fi
  80 endef
  81
  82
  83 define KernelPackage
  84   NAME:=$(1)
  85   $(eval $(call Package/Default))
  86   $(eval $(call KernelPackage/Defaults))
  87   $(eval $(call KernelPackage/$(1)))
  88   $(eval $(call KernelPackage/$(1)/$(KERNEL)))
  89   $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
  90
  91   define Package/kmod-$(1)
  92     TITLE:=$(TITLE)
  93     SECTION:=kernel
  94     CATEGORY:=Kernel modules
  95     DEFAULT:=$(KMOD_DEFAULT)
  96     DESCRIPTION:=$(DESCRIPTION)
  97     EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
  98     $(call KernelPackage/$(1))
  99     $(call KernelPackage/$(1)/$(KERNEL))
 100     $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
 101   endef
 102
 103   ifeq ($(findstring m,$(KCONFIG)),m)
 104     ifneq ($(strip $(FILES)),)
 105       define Package/kmod-$(1)/install
 106                 mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
 107                 $(CP) -L $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
 108                 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
 109                 $(call KernelPackage/$(1)/install,$$(1))
 110       endef
 111     endif
 112   endif
 113   $$(eval $$(call BuildPackage,kmod-$(1)))
 114
 115   $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
 116 endef
 117
 118 define AutoLoad
 119   add_module $(1) "$(2)";
 120 endef
 121