enable optional building of u-boot for avr32
[openwrt.git] / include / kernel.mk
index 7a36cee..b413d84 100644 (file)
@@ -4,26 +4,17 @@
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
 #
-ifeq ($(DUMP),1)
-  KERNEL:=<KERNEL>
-  BOARD:=<BOARD>
-  LINUX_VERSION:=<LINUX_VERSION>
-else
 
-  include $(TOPDIR)/.kernel.mk
+ifeq ($(__target_inc),)
   include $(INCLUDE_DIR)/target.mk
+endif
 
-  # check to see if .kernel.mk matches target.mk
-  ifeq ($(CONFIG_BOARD)-$(CONFIG_KERNEL),$(BOARD)-$(KERNEL))
-     LINUX_VERSION:=$(CONFIG_LINUX_VERSION)
-     LINUX_RELEASE:=$(CONFIG_LINUX_RELEASE)
-     LINUX_KARCH:=$(CONFIG_LINUX_KARCH)
-  else
-  # oops, old .kernel.config; rebuild it (hiding the misleading errors this produces)
-    $(warning rebuilding .kernel.mk)
-    $(TOPDIR)/.kernel.mk: FORCE
-       @$(MAKE) -C $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL) $@ &>/dev/null
-  endif
+ifeq ($(DUMP),1)
+  KERNEL?=<KERNEL>
+  BOARD?=<BOARD>
+  LINUX_VERSION?=<LINUX_VERSION>
+else
+  export GCC_HONOUR_COPTS=s
 
   ifeq ($(KERNEL),2.6)
     LINUX_KMOD_SUFFIX=ko
@@ -32,28 +23,47 @@ else
   endif
 
   ifneq (,$(findstring uml,$(BOARD)))
-    KERNEL_CC:=$(HOSTCC)
-    KERNEL_CROSS:=
+    KERNEL_CC?=$(HOSTCC)
+    KERNEL_CROSS?=
   else
-    KERNEL_CC:=$(TARGET_CC)
-    KERNEL_CROSS:=$(TARGET_CROSS)
+    KERNEL_CC?=$(TARGET_CC)
+    KERNEL_CROSS?=$(TARGET_CROSS)
   endif
 
-  KERNEL_BUILD_DIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
-  LINUX_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
+  PATCH_DIR ?= ./patches$(shell [ -d "./patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
+  KERNEL_BUILD_DIR ?= $(BUILD_DIR_BASE)/linux-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
+  LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
 
   MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
-  MODULES_DIR := $(KERNEL_BUILD_DIR)/modules/$(MODULES_SUBDIR)
   TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
-  KMOD_BUILD_DIR := $(KERNEL_BUILD_DIR)/linux-modules
 
   LINUX_KERNEL:=$(KERNEL_BUILD_DIR)/vmlinux
+
+  LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
+  TESTING:=$(if $(findstring -rc,$(LINUX_VERSION)),/testing,)
+  LINUX_SITE:=@KERNEL/linux/kernel/v$(KERNEL)$(TESTING) \
+
+  ifneq ($(TARGET_BUILD),1)
+    PKG_BUILD_DIR ?= $(KERNEL_BUILD_DIR)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
+  endif
+endif
+
+ifneq (,$(findstring uml,$(BOARD)))
+  LINUX_KARCH:=um
+else
+  ifeq (,$(LINUX_KARCH))
+    LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
+         -e 's/mipsel/mips/' \
+         -e 's/mipseb/mips/' \
+         -e 's/sh[234]/sh/' \
+         -e 's/armeb/arm/' \
+    )
+  endif
 endif
 
 
 define KernelPackage/Defaults
   FILES:=
-  KCONFIG:=m
   AUTOLOAD:=
 endef
 
@@ -78,10 +88,14 @@ define ModuleAutoLoad
                chmod 0755 $(2)/CONTROL/postinst; \
        fi
 endef
+
+ifeq ($(DUMP)$(TARGET_BUILD),)
+  -include $(LINUX_DIR)/.config
+endif
 
 define KernelPackage
   NAME:=$(1)
+  $(eval $(call Package/Default))
   $(eval $(call KernelPackage/Defaults))
   $(eval $(call KernelPackage/$(1)))
   $(eval $(call KernelPackage/$(1)/$(KERNEL)))
@@ -91,74 +105,42 @@ define KernelPackage
     TITLE:=$(TITLE)
     SECTION:=kernel
     CATEGORY:=Kernel modules
-    DEFAULT:=m
     DESCRIPTION:=$(DESCRIPTION)
-    EXTRA_DEPENDS:='kernel (=$(PKG_VERSION)-$(PKG_RELEASE))'
+    EXTRA_DEPENDS:=kernel (=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))
+    VERSION:=$(LINUX_VERSION)$(if $(PKG_VERSION),+$(PKG_VERSION))-$(BOARD)-$(if $(PKG_RELEASE),$(PKG_RELEASE),$(LINUX_RELEASE))
     $(call KernelPackage/$(1))
     $(call KernelPackage/$(1)/$(KERNEL))
     $(call KernelPackage/$(1)/$(BOARD)-$(KERNEL))
   endef
 
-  ifeq ($(findstring m,$(KCONFIG)),m)
+  ifdef KernelPackage/$(1)/description
+    define Package/kmod-$(1)/description
+$(call KernelPackage/$(1)/description)
+    endef
+  endif
+
+  ifneq ($(if $(KCONFIG),$(filter m,$(foreach c,$(filter-out %=y %=n %=m,$(KCONFIG)),$($(c)))),.),)
     ifneq ($(strip $(FILES)),)
       define Package/kmod-$(1)/install
-               mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
-               $(CP) $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
-               $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
-               $(call KernelPackage/$(1)/install,$$(1))
+                 mkdir -p $$(1)/lib/modules/$(LINUX_VERSION)
+                 $(CP) -L $$(FILES) $$(1)/lib/modules/$(LINUX_VERSION)/
+                 $(call ModuleAutoLoad,$(1),$$(1),$(AUTOLOAD))
+                 $(call KernelPackage/$(1)/install,$$(1))
       endef
     endif
+  $(if $(CONFIG_PACKAGE_kmod-$(1)),
+    else
+      compile: kmod-$(1)-unavailable
+      kmod-$(1)-unavailable:
+               @echo "WARNING: kmod-$(1) is not available in the kernel config"
+  )
   endif
   $$(eval $$(call BuildPackage,kmod-$(1)))
+
+  $$(IPKG_kmod-$(1)): $$(wildcard $$(FILES))
 endef
 
 define AutoLoad
   add_module $(1) "$(2)";
 endef
 
-
-# FIXME: remove this crap
-define KMOD_template
-ifeq ($$(strip $(4)),)
-KDEPEND_$(1):=m
-else
-KDEPEND_$(1):=$($(4))
-endif
-
-IDEPEND_$(1):=kernel ($(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)) $(foreach pkg,$(5),", $(pkg)")
-
-PKG_$(1) := $(PACKAGE_DIR)/kmod-$(2)_$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)_$(ARCH).ipk
-I_$(1) := $(KMOD_BUILD_DIR)/ipkg/$(2)
-
-ifeq ($$(KDEPEND_$(1)),m)
-ifneq ($$(CONFIG_PACKAGE_KMOD_$(1)),)
-TARGETS += $$(PKG_$(1))
-endif
-ifeq ($$(CONFIG_PACKAGE_KMOD_$(1)),y)
-INSTALL_TARGETS += $$(PKG_$(1))
-endif
-endif
-
-$$(PKG_$(1)): $(LINUX_DIR)/.modules_done
-       rm -rf $$(I_$(1))
-       $(SCRIPT_DIR)/make-ipkg-dir.sh $$(I_$(1)) ../control/kmod-$(2).control $(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE) $(ARCH)
-       echo "Depends: $$(IDEPEND_$(1))" >> $$(I_$(1))/CONTROL/control
-ifneq ($(strip $(3)),)
-       mkdir -p $$(I_$(1))/lib/modules/$(LINUX_VERSION)
-       $(CP) $(3) $$(I_$(1))/lib/modules/$(LINUX_VERSION)
-endif
-ifneq ($(6),)
-       mkdir -p $$(I_$(1))/etc/modules.d
-       for module in $(7); do \
-               echo $$$$module >> $$(I_$(1))/etc/modules.d/$(6)-$(2); \
-       done
-       echo "#!/bin/sh" >> $$(I_$(1))/CONTROL/postinst
-       echo "[ -z \"\$$$$IPKG_INSTROOT\" ] || exit" >> $$(I_$(1))/CONTROL/postinst
-       echo ". /etc/functions.sh" >> $$(I_$(1))/CONTROL/postinst
-       echo "load_modules /etc/modules.d/$(6)-$(2)" >> $$(I_$(1))/CONTROL/postinst
-       chmod 0755 $$(I_$(1))/CONTROL/postinst
-endif
-       $(8)
-       $(IPKG_BUILD) $$(I_$(1)) $(PACKAGE_DIR)
-endef
-
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