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   KERNEL_BUILD_DIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
  33   LINUX_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
  34
  35   MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
  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   TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
  42   LINUX_SITE:=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
  43            http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
  44            http://www.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
  45            http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING)
  46
  47   PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
  48 endif
  49 GENERIC_PLATFORM_DIR := $(TOPDIR)/target/linux/generic-$(KERNEL)
  50 GENERIC_PATCH_DIR := $(GENERIC_PLATFORM_DIR)/patches$(shell [ -d "$(GENERIC_PLATFORM_DIR)/patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
  51
  52
  53 define KernelPackage/Defaults
  54   FILES:=
  55   AUTOLOAD:=
  56 endef
  57
  58 define ModuleAutoLoad
  59         export modules=; \
  60         add_module() { \
  61                 mkdir -p $(2)/etc/modules.d; \
  62                 ( \
  63                         for mod in $$$$$$$$2; do \
  64                                 getvar mod; \
  65                         done \
  66                 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
  67                 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
  68         }; \
  69         $(3) \
  70         if [ -n "$$$$$$$$modules" ]; then \
  71                 mkdir -p $(2)/etc/modules.d; \
  72                 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
  73                 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
  74                 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
  75                 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
  76                 chmod 0755 $(2)/CONTROL/postinst; \
  77         fi
  78 endef
  79
  80
  81 define KernelPackage
  82   NAME:=$(1)
  83   $(eval $(call Package/Default))
  84   $(eval $(call KernelPackage/Defaults))
  85   $(eval $(call KernelPackage/$(1)))
  86   $(eval $(call KernelPackage/$(1)/$(KERNEL)))
  87   $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
  88
  89   define Package/kmod-$(1)
  90     TITLE:=$(TITLE)
  91     SECTION:=kernel
  92     CATEGORY:=Kernel modules
  93     DESCRIPTION:=$(DESCRIPTION)
  94     EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
  95     $(call KernelPackage/$(1))
  96     $(call KernelPackage/$(1)/$(KERNEL))
  97     $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
  98   endef
  99
 100   ifeq ($(filter y,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),)
 101     ifneq ($(strip $(FILES)),)
 102       define Package/kmod-$(1)/install
 103                   mkdir -p $$(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
 112   $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
 113 endef
 114
 115 define AutoLoad
 116   add_module $(1) "$(2)";
 117 endef
 118