openwrt/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 ifeq ($(DUMP),1)
   8   KERNEL:=<KERNEL>
   9   BOARD:=<BOARD>
  10   LINUX_VERSION:=<LINUX_VERSION>
  11 else
  12
  13   include $(TOPDIR)/.kernel.mk
  14   include $(INCLUDE_DIR)/target.mk
  15
  16   # check to see if .kernel.mk matches target.mk
  17   ifeq ($(CONFIG_BOARD)-$(CONFIG_KERNEL),$(BOARD)-$(KERNEL))
  18      LINUX_VERSION:=$(CONFIG_LINUX_VERSION)
  19      RELEASE:=$(CONFIG_RELEASE)
  20   else
  21   # oops, old .kernel.config; rebuild it (hiding the misleading errors this produces)
  22     $(warning rebuilding .kernel.mk)
  23     $(TOPDIR)/.kernel.mk: FORCE
  24         @$(MAKE) -C $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL) $@ &>/dev/null
  25   endif
  26
  27   ifeq ($(KERNEL),2.6)
  28     LINUX_KMOD_SUFFIX=ko
  29   else
  30     LINUX_KMOD_SUFFIX=o
  31   endif
  32
  33   LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
  34         -e 's/mipsel/mips/' \
  35         -e 's/mipseb/mips/' \
  36         -e 's/powerpc/ppc/' \
  37         -e 's/sh[234]/sh/' \
  38         -e 's/armeb/arm/' \
  39   )
  40
  41   KERNELNAME=
  42   ifneq (,$(findstring x86,$(BOARD)))
  43     KERNELNAME="bzImage"
  44   endif
  45   ifneq (,$(findstring ppc,$(BOARD)))
  46     KERNELNAME="uImage"
  47   endif
  48
  49   ifneq (,$(findstring uml,$(BOARD)))
  50     LINUX_KARCH:=um
  51     KERNEL_CC:=$(HOSTCC)
  52     KERNEL_CROSS:=
  53   else
  54     KERNEL_CC:=$(TARGET_CC)
  55     KERNEL_CROSS:=$(TARGET_CROSS)
  56   endif
  57
  58   KERNEL_BUILD_DIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
  59   LINUX_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
  60
  61   MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
  62   MODULES_DIR := $(KERNEL_BUILD_DIR)/modules/$(MODULES_SUBDIR)
  63   TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
  64   KMOD_BUILD_DIR := $(KERNEL_BUILD_DIR)/linux-modules
  65
  66   LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
  67 endif
  68
  69 # FIXME: remove this crap
  70 define KMOD_template
  71 ifeq ($$(strip $(4)),)
  72 KDEPEND_$(1):=m
  73 else
  74 KDEPEND_$(1):=$($(4))
  75 endif
  76
  77 IDEPEND_$(1):=kernel ($(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)) $(foreach pkg,$(5),", $(pkg)")
  78
  79 PKG_$(1) := $(PACKAGE_DIR)/kmod-$(2)_$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)_$(ARCH).ipk
  80 I_$(1) := $(KMOD_BUILD_DIR)/ipkg/$(2)
  81
  82 ifeq ($$(KDEPEND_$(1)),m)
  83 ifneq ($$(CONFIG_PACKAGE_KMOD_$(1)),)
  84 TARGETS += $$(PKG_$(1))
  85 endif
  86 ifeq ($$(CONFIG_PACKAGE_KMOD_$(1)),y)
  87 INSTALL_TARGETS += $$(PKG_$(1))
  88 endif
  89 endif
  90
  91 $$(PKG_$(1)): $(LINUX_DIR)/.modules_done
  92         rm -rf $$(I_$(1))
  93         $(SCRIPT_DIR)/make-ipkg-dir.sh $$(I_$(1)) ../control/kmod-$(2).control $(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE) $(ARCH)
  94         echo "Depends: $$(IDEPEND_$(1))" >> $$(I_$(1))/CONTROL/control
  95 ifneq ($(strip $(3)),)
  96         mkdir -p $$(I_$(1))/lib/modules/$(LINUX_VERSION)
  97         $(CP) $(3) $$(I_$(1))/lib/modules/$(LINUX_VERSION)
  98 endif
  99 ifneq ($(6),)
 100         mkdir -p $$(I_$(1))/etc/modules.d
 101         for module in $(7); do \
 102                 echo $$$$module >> $$(I_$(1))/etc/modules.d/$(6)-$(2); \
 103         done
 104         echo "#!/bin/sh" >> $$(I_$(1))/CONTROL/postinst
 105         echo "[ -z \"\$$$$IPKG_INSTROOT\" ] || exit" >> $$(I_$(1))/CONTROL/postinst
 106         echo ". /etc/functions.sh" >> $$(I_$(1))/CONTROL/postinst
 107         echo "load_modules /etc/modules.d/$(6)-$(2)" >> $$(I_$(1))/CONTROL/postinst
 108         chmod 0755 $$(I_$(1))/CONTROL/postinst
 109 endif
 110         $(8)
 111         $(IPKG_BUILD) $$(I_$(1)) $(PACKAGE_DIR)
 112 endef
 113