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 include $(INCLUDE_DIR)/kernel-version.mk
   9
  10 ifeq ($(DUMP),1)
  11   KERNEL?=<KERNEL>
  12   BOARD?=<BOARD>
  13   LINUX_VERSION?=<LINUX_VERSION>
  14 else
  15   include $(INCLUDE_DIR)/target.mk
  16
  17   export GCC_HONOUR_COPTS=s
  18
  19   ifeq ($(KERNEL),2.6)
  20     LINUX_KMOD_SUFFIX=ko
  21   else
  22     LINUX_KMOD_SUFFIX=o
  23   endif
  24
  25   ifneq (,$(findstring uml,$(BOARD)))
  26     KERNEL_CC:=$(HOSTCC)
  27     KERNEL_CROSS:=
  28   else
  29     KERNEL_CC:=$(TARGET_CC)
  30     KERNEL_CROSS:=$(TARGET_CROSS)
  31   endif
  32
  33   PLATFORM_DIR := $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL)
  34   PATCH_DIR ?= ./patches$(shell [ -d "./patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
  35   KERNEL_BUILD_DIR ?= $(BUILD_DIR_BASE)/linux-$(KERNEL)-$(BOARD)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
  36   LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
  37
  38   MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
  39   TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
  40
  41   LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
  42
  43   LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
  44   TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
  45   LINUX_SITE:=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
  46            http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
  47            http://www.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING) \
  48            http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)$(TESTING)
  49
  50   PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
  51 endif
  52 GENERIC_PLATFORM_DIR := $(TOPDIR)/target/linux/generic-$(KERNEL)
  53 GENERIC_PATCH_DIR := $(GENERIC_PLATFORM_DIR)/patches$(shell [ -d "$(GENERIC_PLATFORM_DIR)/patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
  54
  55
  56 define KernelPackage/Defaults
  57   FILES:=
  58   AUTOLOAD:=
  59 endef
  60
  61 define ModuleAutoLoad
  62         export modules=; \
  63         add_module() { \
  64                 mkdir -p $(2)/etc/modules.d; \
  65                 ( \
  66                         for mod in $$$$$$$$2; do \
  67                                 getvar mod; \
  68                         done \
  69                 ) > $(2)/etc/modules.d/$$$$$$$$1-$(1); \
  70                 modules="$$$$$$$${modules:+$$$$$$$$modules }$$$$$$$$1-$(1)"; \
  71         }; \
  72         $(3) \
  73         if [ -n "$$$$$$$$modules" ]; then \
  74                 mkdir -p $(2)/etc/modules.d; \
  75                 echo "#!/bin/sh" > $(2)/CONTROL/postinst; \
  76                 echo "[ -z \"\$$$$$$$$IPKG_INSTROOT\" ] || exit 0" >> $(2)/CONTROL/postinst; \
  77                 echo ". /etc/functions.sh" >> $(2)/CONTROL/postinst; \
  78                 echo "load_modules $$$$$$$$modules" >> $(2)/CONTROL/postinst; \
  79                 chmod 0755 $(2)/CONTROL/postinst; \
  80         fi
  81 endef
  82
  83
  84 define KernelPackage
  85   NAME:=$(1)
  86   $(eval $(call Package/Default))
  87   $(eval $(call KernelPackage/Defaults))
  88   $(eval $(call KernelPackage/$(1)))
  89   $(eval $(call KernelPackage/$(1)/$(KERNEL)))
  90   $(eval $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL)))
  91
  92   define Package/kmod-$(1)
  93     TITLE:=$(TITLE)
  94     SECTION:=kernel
  95     CATEGORY:=Kernel modules
  96     DESCRIPTION:=$(DESCRIPTION)
  97     EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
  98     $(call KernelPackage/$(1))
  99     $(call KernelPackage/$(1)/$(KERNEL))
 100     $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
 101   endef
 102
 103   ifdef KernelPackage/$(1)/description
 104     define Package/kmod-$(1)/description
 105 $(call KernelPackage/$(1)/description)
 106     endef
 107   endif
 108
 109   ifneq ($(if $(KCONFIG),$(filter m,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
 110     ifneq ($(strip $(FILES)),)
 111       define Package/kmod-$(1)/install
 112                   mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
 113                   $(CP) -L $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
 114                   $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
 115                   $(call KernelPackage/$(1)/install,$$(1))
 116       endef
 117     endif
 118   endif
 119   $$(eval $$(call BuildPackage,kmod-$(1)))
 120
 121   $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
 122 endef
 123
 124 define AutoLoad
 125   add_module $(1) "$(2)";
 126 endef
 127