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[atm] drop backported patches as they cause regressions and oopses
[openwrt.git] / include / kernel-build.mk
diff --git a/include/kernel-build.mk b/include/kernel-build.mk
index 6fae4ac..cf8737c 100644 (file)
--- a/include/kernel-build.mk
+++ b/include/kernel-build.mk
@@ -1,225 +1,133 @@
-# 
-# Copyright (C) 2006 OpenWrt.org
+#
+# Copyright (C) 2006-2007 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
 #
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
 #
--include $(INCLUDE_DIR)/modules-$(KERNEL).mk
+include $(INCLUDE_DIR)/host.mk
+include $(INCLUDE_DIR)/prereq.mk
 
 
-LINUX_SOURCE:=linux-$(LINUX_VERSION).tar.bz2
-LINUX_SITE=http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
-           http://www.us.kernel.org/pub/linux/kernel/v$(KERNEL) \
-           http://www.kernel.org/pub/linux/kernel/v$(KERNEL) \
-           http://www.de.kernel.org/pub/linux/kernel/v$(KERNEL)
+ifneq ($(DUMP),1)
+  all: compile
+endif
 
 
-KERNEL_IDIR:=$(KERNEL_BUILD_DIR)/kernel-ipkg
-KERNEL_IPKG:=$(KERNEL_BUILD_DIR)/kernel_$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)_$(ARCH).ipk
-TARGETS += $(KERNEL_IPKG)
-INSTALL_TARGETS += $(KERNEL_IPKG)
+export QUILT=1
+STAMP_PREPARED:=$(LINUX_DIR)/.prepared
+STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
+include $(INCLUDE_DIR)/download.mk
+include $(INCLUDE_DIR)/quilt.mk
+include $(INCLUDE_DIR)/kernel-defaults.mk
 
 
-$(TARGETS): $(PACKAGE_DIR)
+define Kernel/Prepare
+       $(call Kernel/Prepare/Default)
+endef
 
 
-$(LINUX_DIR):
-       mkdir -p $@
+define Kernel/Configure
+       $(call Kernel/Configure/Default)
+endef
 
 
-$(PACKAGE_DIR):
-       mkdir -p $@
+define Kernel/CompileModules
+       $(call Kernel/CompileModules/Default)
+endef
 
 
-$(DL_DIR)/$(LINUX_SOURCE):
-       -mkdir -p $(DL_DIR)
-       $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
+define Kernel/CompileImage
+       $(call Kernel/CompileImage/Default)
+endef
 
 
-$(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE)
-       -mkdir -p $(KERNEL_BUILD_DIR)
-       bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS) -
-       touch $@
-
-ifeq ($(KERNEL),2.4)
-$(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
-       $(SED) "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),g;" \
-         $(LINUX_DIR)/Makefile  \
-         $(LINUX_DIR)/arch/*/Makefile
-       $(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
-       $(MAKE) -C $(LINUX_DIR) ARCH=$(LINUX_KARCH) oldconfig include/linux/compile.h include/linux/version.h
-       touch $@
-
-$(LINUX_DIR)/.depend_done: $(LINUX_DIR)/.configured
-       $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) dep
-       touch $@
-
-$(LINUX_DIR)/vmlinux: $(LINUX_DIR)/.depend_done
-else
-$(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
-       $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) oldconfig prepare scripts
-       touch $@
-endif
+define Kernel/Clean
+       $(call Kernel/Clean/Default)
+endef
 
 
-ramdisk-config: $(LINUX_DIR)/.configured FORCE
-       mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
-       grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
-ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
-       echo 'CONFIG_INITRAMFS_SOURCE="../../root"' >> $(LINUX_DIR)/.config
-       echo 'CONFIG_INITRAMFS_ROOT_UID=0' >> $(LINUX_DIR)/.config
-       echo 'CONFIG_INITRAMFS_ROOT_GID=0' >> $(LINUX_DIR)/.config
-       mkdir -p $(BUILD_DIR)/root/etc/init.d
-       $(CP) ../generic-2.6/files/init $(BUILD_DIR)/root/
-else
-       rm -f $(BUILD_DIR)/root/init $(BUILD_DIR)/root/etc/init.d/S00initramfs
-       echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
-endif
+define Download/kernel
+  URL:=$(LINUX_SITE)
+  FILE:=$(LINUX_SOURCE)
+  MD5SUM:=$(LINUX_KERNEL_MD5SUM)
+endef
 
 
-$(LINUX_DIR)/vmlinux: $(STAMP_DIR)/.linux-compile pkg-install ramdisk-config
-       $(MAKE) -C $(LINUX_DIR) CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) PATH=$(TARGET_PATH)
-
-$(LINUX_KERNEL): $(LINUX_DIR)/vmlinux
-       $(TARGET_CROSS)objcopy -O binary -R .reginfo -R .note -R .comment -R .mdebug -S $< $@
-       touch -c $(LINUX_KERNEL)
-
-$(LINUX_DIR)/.modules_done:
-       rm -rf $(KERNEL_BUILD_DIR)/modules
-       $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" ARCH=$(LINUX_KARCH) PATH="$(TARGET_PATH)" modules
-       $(MAKE) -C "$(LINUX_DIR)" CROSS_COMPILE="$(KERNEL_CROSS)" DEPMOD=true INSTALL_MOD_PATH=$(KERNEL_BUILD_DIR)/modules modules_install
-       touch $(LINUX_DIR)/.modules_done
-
-modules: $(LINUX_DIR)/.modules_done
-packages: $(TARGETS)
-
-$(STAMP_DIR)/.linux-compile:
-       @$(MAKE) modules
-       @$(MAKE) packages
-       ln -sf $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) $(BUILD_DIR)/linux
-       touch $@
-
-$(KERNEL_IPKG):
-       rm -rf $(KERNEL_IDIR)
-       mkdir -p $(KERNEL_IDIR)/etc
-       $(SCRIPT_DIR)/make-ipkg-dir.sh $(KERNEL_IDIR) ../control/kernel.control $(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE) $(ARCH)
-       if [ -f ./config/$(BOARD).modules ]; then \
-               cp ./config/$(BOARD).modules $(KERNEL_IDIR)/etc/modules; \
-       fi
-       $(IPKG_BUILD) $(KERNEL_IDIR) $(KERNEL_BUILD_DIR)
-
-$(TOPDIR)/.kernel.mk:
-       echo "BOARD:=$(BOARD)" > $@
-       echo "LINUX_VERSION:=$(LINUX_VERSION)" >> $@
-       echo "LINUX_RELEASE:=$(LINUX_RELEASE)" >> $@
-
-pkg-install: FORCE
-       @{ [ "$(INSTALL_TARGETS)" != "" ] && $(IPKG) install $(INSTALL_TARGETS) || true; }
-
-source: $(DL_DIR)/$(LINUX_SOURCE)
-prepare: $(LINUX_DIR)/.configured
-       @mkdir -p $(STAMP_DIR) $(PACKAGE_DIR)
-
-compile: prepare $(STAMP_DIR)/.linux-compile
-
-install: compile $(LINUX_KERNEL)
-
-mostlyclean: FORCE
-       rm -f $(STAMP_DIR)/.linux-compile
-       rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.modules_done
-       rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.drivers-unpacked
-       $(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
-       rm -f $(LINUX_KERNEL)
-
-rebuild: FORCE
-       -$(MAKE) mostlyclean
-       if [ -f $(LINUX_KERNEL) ]; then \
-               $(MAKE) clean; \
-       fi
-       $(MAKE) compile $(MAKE_TRACE)
-
-clean: FORCE
-       rm -f $(STAMP_DIR)/.linux-compile
-       rm -rf $(KERNEL_BUILD_DIR)
-       rm -f $(TARGETS)
+ifdef CONFIG_COLLECT_KERNEL_DEBUG
+  define Kernel/CollectDebug
+       rm -rf $(KERNEL_BUILD_DIR)/debug
+       mkdir -p $(KERNEL_BUILD_DIR)/debug/modules
+       $(CP) $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/debug/
+       -$(CP) \
+               $(STAGING_DIR_ROOT)/lib/modules/$(LINUX_VERSION)/* \
+               $(KERNEL_BUILD_DIR)/debug/modules/
+       $(FIND) $(KERNEL_BUILD_DIR)/debug -type f | $(XARGS) $(KERNEL_CROSS)strip --only-keep-debug
+       $(TAR) c -C $(KERNEL_BUILD_DIR) debug | bzip2 -c -9 > $(BIN_DIR)/kernel-debug.tar.bz2
+  endef
+endif
 
 
+define BuildKernel
+  $(if $(QUILT),$(Build/Quilt))
+  $(if $(LINUX_SITE),$(call Download,kernel))
 
 
-define AutoLoad
-add_module $(1) "$(2)";
-endef
+  $(STAMP_PREPARED): $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
+       -rm -rf $(KERNEL_BUILD_DIR)
+       -mkdir -p $(KERNEL_BUILD_DIR)
+       $(Kernel/Prepare)
+       touch $$@
 
 
-define KernelPackage/Defaults
-  VERSION:=$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)
-  DEPENDS:=
-  MAINTAINER:=OpenWrt Developers Team <openwrt-devel@openwrt.org>
-  SOURCE:=$(patsubst $(TOPDIR)/%,%,${shell pwd})
-  PKGARCH:=$(ARCH)
-  PRIORITY:=optional
-  KCONFIG:=
-  FILES:=
-  BUILD:=
-  MODULES:=
-  TITLE:=
-  DESCRIPTION:=
-endef
+  $(KERNEL_BUILD_DIR)/symtab.txt: FORCE
+       find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \
+               xargs $(TARGET_CROSS)nm | \
+               awk '$$$$1 == "U" { print $$$$2 } ' | \
+               sort -u > $$@
 
 
-define KernelPackage
-  NAME:=$(1)
-  $(eval $(call KernelPackage/Defaults))
-  $(eval $(call KernelPackage/$(1)))
-  $(eval $(call KernelPackage/$(1)/$(KERNEL)))
-  
-  PKG_$(1) := $(PACKAGE_DIR)/kmod-$(1)_$(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE)_$(ARCH).ipk
-  I_$(1) := $(KMOD_BUILD_DIR)/ipkg/$(1)
-  
-  IDEPEND_$(1):='kernel ($(LINUX_VERSION)-$(BOARD)-$(LINUX_RELEASE))' $(DEPENDS)
-  
-  ifeq ($$(strip $(KCONFIG)),)
-    KDEPEND_$(1):=m
-  else
-    KDEPEND_$(1):=$($(KCONFIG))
-  endif
-  ifeq ($$(KDEPEND_$(1)),m)
-    ifneq ($(CONFIG_PACKAGE_kmod-$(1)),)
-      packages: $$(PKG_$(1))
-    endif
-    ifeq ($(CONFIG_PACKAGE_kmod-$(1)),y)
-      install-kmod-$(1): FORCE
-               $(IPKG) install $$(PKG_$(1))
-      pkg-install: install-kmod-$(1)
-    endif
-  endif
-
-  $$(PKG_$(1)): $(LINUX_DIR)/.modules_done
-       rm -rf $$(I_$(1))
-       install -d -m0755 $$(I_$(1))/CONTROL
-       echo "Package: kmod-$(1)" > $$(I_$(1))/CONTROL/control
-       echo "Version: $(VERSION)" >> $$(I_$(1))/CONTROL/control
+  $(KERNEL_BUILD_DIR)/symtab.h: $(KERNEL_BUILD_DIR)/symtab.txt
        ( \
        ( \
-               DEPENDS=; \
-               for depend in $$(filter-out @%,$$(IDEPEND_$(1))); do \
-                       DEPENDS=$$$${DEPENDS:+$$$$DEPENDS, }$$$${depend##+}; \
-               done; \
-               echo "Depends: $$$$DEPENDS" >> $$(I_$(1))/CONTROL/control; \
-       )
-       echo "Source: $(SOURCE)" >> $$(I_$(1))/CONTROL/control
-       echo "Section: kernel" >> $$(I_$(1))/CONTROL/control
-       echo "Priority: $(PRIORITY)" >> $$(I_$(1))/CONTROL/control
-       echo "Maintainer: $(MAINTAINER)" >> $$(I_$(1))/CONTROL/control
-       echo "Architecture: $(PKGARCH)" >> $$(I_$(1))/CONTROL/control
-       echo "Description: $(DESCRIPTION)" | sed -e 's,\\,\n ,g' >> $$(I_$(1))/CONTROL/control
-  ifneq ($(strip $(FILES)),)
-       mkdir -p $$(I_$(1))/lib/modules/$(LINUX_VERSION)
-       $(CP) $(FILES) $$(I_$(1))/lib/modules/$(LINUX_VERSION)/
-  endif
-  ifneq ($(MODULES),)
-       export modules=; \
-       add_module() { \
-               mkdir -p $$(I_$(1))/etc/modules.d; \
-               echo "$$$$2" > $$(I_$(1))/etc/modules.d/$$$$1-$(1); \
-               modules="$$$${modules:+$$$$modules }$$$$1-$(1)"; \
-       }; \
-       $(MODULES) \
-       mkdir -p $$(I_$(1))/etc/modules.d; \
-       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 $$$$modules" >> $$(I_$(1))/CONTROL/postinst; \
-       chmod 0755 $$(I_$(1))/CONTROL/postinst;
-  endif
-       $(IPKG_BUILD) $$(I_$(1)) $(PACKAGE_DIR)
-endef
+               echo '#define SYMTAB_KEEP \'; \
+               cat $(KERNEL_BUILD_DIR)/symtab.txt | \
+                       awk '{print "*(__ksymtab." $$$$1 ") \\" }'; \
+               echo; \
+               echo '#define SYMTAB_KEEP_GPL \'; \
+               cat $(KERNEL_BUILD_DIR)/symtab.txt | \
+                       awk '{print "*(__ksymtab_gpl." $$$$1 ") \\" }'; \
+               echo; \
+               echo '#define SYMTAB_KEEP_STR \'; \
+               cat $(KERNEL_BUILD_DIR)/symtab.txt | \
+                       awk '{print "*(__ksymtab_strings." $$$$1 ") \\" }'; \
+               echo; \
+       ) > $$@
+
+  $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config
+       $(Kernel/Configure)
+       touch $$@
+
+  $(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
+       $(Kernel/CompileModules)
+       touch $$@
+
+  $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) $(if $(CONFIG_STRIP_KERNEL_EXPORTS),$(KERNEL_BUILD_DIR)/symtab.h) FORCE
+       $(Kernel/CompileImage)
+       $(Kernel/CollectDebug)
+       touch $$@
+       
+  mostlyclean: FORCE
+       $(Kernel/Clean)
+
+  define BuildKernel
+  endef
+
+  download: $(DL_DIR)/$(LINUX_SOURCE)
+  prepare: $(STAMP_CONFIGURED)
+  compile: $(LINUX_DIR)/.modules
+       $(MAKE) -C image compile TARGET_BUILD=
+
+  oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
+       rm -f $(STAMP_CONFIGURED)
+       $(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
+       $(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
+       $(LINUX_RECONF_DIFF) $(LINUX_DIR)/.config > $(LINUX_RECONFIG_TARGET)
+
+  install: $(LINUX_DIR)/.image
+       +$(MAKE) -C image compile install TARGET_BUILD=
+
+  clean: FORCE
+       rm -rf $(KERNEL_BUILD_DIR)
 
 
--include $(INCLUDE_DIR)/modules.mk
+  image-prereq:
+       @+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
 
 
+  prereq: image-prereq
+
+endef
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