image.mk: add Build step combined-image
[openwrt/svn-archive/archive.git] / include / kernel-build.mk
index e063165..9abfd54 100644 (file)
@@ -1,67 +1,20 @@
-# 
+#
 # Copyright (C) 2006-2007 OpenWrt.org
 #
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
 #
-KERNEL_BUILD:=1
-
-include $(INCLUDE_DIR)/kernel-version.mk
 include $(INCLUDE_DIR)/host.mk
-include $(INCLUDE_DIR)/kernel.mk
 include $(INCLUDE_DIR)/prereq.mk
 
-GENERIC_LINUX_CONFIG:=$(GENERIC_PLATFORM_DIR)/config-$(shell [ -f "$(GENERIC_PLATFORM_DIR)/config-$(KERNEL_PATCHVER)" ] && echo "$(KERNEL_PATCHVER)" || echo template ) 
-LINUX_CONFIG_DIR ?= ./config$(shell [ -d "./config-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
-LINUX_CONFIG ?= $(LINUX_CONFIG_DIR)/default
-
-ifneq ($(DUMP),)
-  TMP_CONFIG:=$(TMP_DIR)/.kconfig-$(BOARD)-$(KERNEL)
-  $(TMP_CONFIG): $(GENERIC_LINUX_CONFIG) $(LINUX_CONFIG)
-       $(SCRIPT_DIR)/config.pl + $^ > $@
-  -include $(TMP_CONFIG)
-  .SILENT: $(TMP_CONFIG)
-endif
-
-ifneq ($(CONFIG_ATM),)
-  FEATURES += atm
-endif
-ifneq ($(CONFIG_PCI),)
-  FEATURES += pci
-endif
-ifneq ($(CONFIG_USB),)
-  FEATURES += usb
-endif
-ifneq ($(CONFIG_PCMCIA)$(CONFIG_PCCARD),)
-  FEATURES += pcmcia
-endif
-ifneq ($(CONFIG_VIDEO_DEV),)
-  FEATURES += video
-endif
-
-# remove duplicates
-FEATURES:=$(sort $(FEATURES))
-
-ifeq ($(DUMP),1)
-  all: dumpinfo
-else
+ifneq ($(DUMP),1)
   all: compile
 endif
 
-ifneq (,$(findstring uml,$(BOARD)))
-  LINUX_KARCH:=um
-else
-  LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
-       -e 's/mipsel/mips/' \
-       -e 's/mipseb/mips/' \
-       -e 's/powerpc/ppc/' \
-       -e 's/sh[234]/sh/' \
-       -e 's/armeb/arm/' \
-  )
-endif
-
+export QUILT=1
 STAMP_PREPARED:=$(LINUX_DIR)/.prepared
 STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
+include $(INCLUDE_DIR)/download.mk
 include $(INCLUDE_DIR)/quilt.mk
 include $(INCLUDE_DIR)/kernel-defaults.mk
 
@@ -79,115 +32,113 @@ endef
 
 define Kernel/CompileImage
        $(call Kernel/CompileImage/Default)
+       $(call Kernel/CompileImage/Initramfs)
 endef
 
 define Kernel/Clean
        $(call Kernel/Clean/Default)
 endef
 
+define Download/kernel
+  URL:=$(LINUX_SITE)
+  FILE:=$(LINUX_SOURCE)
+  MD5SUM:=$(LINUX_KERNEL_MD5SUM)
+endef
+
+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 > $(BIN_DIR)/kernel-debug.tar.bz2
+  endef
+endif
+
 define BuildKernel
-  ifneq ($(LINUX_SITE),)
-    $(DL_DIR)/$(LINUX_SOURCE):
-               -mkdir -p $(DL_DIR)
-               $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE)
-  endif
+  $(if $(QUILT),$(Build/Quilt))
+  $(if $(LINUX_SITE),$(call Download,kernel))
+
+  .NOTPARALLEL:
 
-  $(STAMP_PREPARED): $(DL_DIR)/$(LINUX_SOURCE)
+  $(STAMP_PREPARED): $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
        -rm -rf $(KERNEL_BUILD_DIR)
        -mkdir -p $(KERNEL_BUILD_DIR)
-       $(call Kernel/Prepare)
+       $(Kernel/Prepare)
        touch $$@
 
-  $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_CONFIG) $(GENERIC_LINUX_CONFIG) $(TOPDIR)/.config
-       $(call Kernel/Configure)
+  $(KERNEL_BUILD_DIR)/symtab.h: FORCE
+       rm -f $(KERNEL_BUILD_DIR)/symtab.h
+       touch $(KERNEL_BUILD_DIR)/symtab.h
+       +$(MAKE) $(KERNEL_MAKEOPTS) vmlinux
+       find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \
+               xargs $(TARGET_CROSS)nm | \
+               awk '$$$$1 == "U" { print $$$$2 } ' | \
+               sort -u > $(KERNEL_BUILD_DIR)/mod_symtab.txt
+       $(TARGET_CROSS)nm -n $(LINUX_DIR)/vmlinux.o | grep ' [rR] __ksymtab' | sed -e 's,........ [rR] __ksymtab_,,' > $(KERNEL_BUILD_DIR)/kernel_symtab.txt
+       grep -Ff $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_include.txt
+       grep -Fvf $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_exclude.txt
+       ( \
+               echo '#define SYMTAB_KEEP \'; \
+               cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+                       awk '{print "KEEP(*(___ksymtab+" $$$$1 ")) \\" }'; \
+               echo; \
+               echo '#define SYMTAB_KEEP_GPL \'; \
+               cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+                       awk '{print "KEEP(*(___ksymtab_gpl+" $$$$1 ")) \\" }'; \
+               echo; \
+               echo '#define SYMTAB_DISCARD \'; \
+               cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+                       awk '{print "*(___ksymtab+" $$$$1 ") \\" }'; \
+               echo; \
+               echo '#define SYMTAB_DISCARD_GPL \'; \
+               cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+                       awk '{print "*(___ksymtab_gpl+" $$$$1 ") \\" }'; \
+               echo; \
+       ) > $$@
+
+  $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config
+       $(Kernel/Configure)
        touch $$@
 
   $(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
-       $(call Kernel/CompileModules)
+       $(Kernel/CompileModules)
        touch $$@
 
-  $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) FORCE
-       $(call Kernel/CompileImage)
+  $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) $(if $(CONFIG_STRIP_KERNEL_EXPORTS),$(KERNEL_BUILD_DIR)/symtab.h) FORCE
+       $(Kernel/CompileImage)
+       $(Kernel/CollectDebug)
        touch $$@
        
   mostlyclean: FORCE
-       $(call Kernel/Clean)
-
-  ifeq ($(DUMP),1)
-    dumpinfo:
-               @echo 'Target: $(BOARD)-$(KERNEL)'
-               @echo 'Target-Name: $(BOARDNAME) [$(KERNEL)]'
-               @echo 'Target-Path: $(subst $(TOPDIR)/,,$(PWD))'
-               @echo 'Target-Arch: $(ARCH)'
-               @echo 'Target-Features: $(FEATURES)'
-               @echo 'Linux-Version: $(LINUX_VERSION)'
-               @echo 'Linux-Release: $(LINUX_RELEASE)'
-               @echo 'Linux-Kernel-Arch: $(LINUX_KARCH)'
-               @echo 'Target-Description:'
-               @getvar $(call shvar,Target/Description)
-               @echo '@@'
-               @echo 'Default-Packages: $(DEFAULT_PACKAGES)'
-    ifneq ($(DUMPINFO),)
-               @$(DUMPINFO)
-    endif
-  endif
+       $(Kernel/Clean)
 
   define BuildKernel
   endef
-endef
-
-define Profile/Default
-  NAME:=
-  PACKAGES:=
-endef
 
-confname=$(subst .,_,$(subst -,_,$(1)))
-define Profile
-  $(eval $(call Profile/Default))
-  $(eval $(call Profile/$(1)))
-  $(eval $(call shexport,Profile/$(1)/Config))
-  $(eval $(call shexport,Profile/$(1)/Description))
-  DUMPINFO += \
-       echo "Target-Profile: $(1)"; \
-       echo "Target-Profile-Name: $(NAME)"; \
-       echo "Target-Profile-Packages: $(PACKAGES)"; \
-       if [ -f ./config/profile-$(1) ]; then \
-               echo "Target-Profile-Kconfig: yes"; \
-       fi; \
-       echo "Target-Profile-Config: "; \
-       getvar "$(call shvar,Profile/$(1)/Config)"; \
-       echo "@@"; \
-       echo "Target-Profile-Description:"; \
-       getvar "$(call shvar,Profile/$(1)/Description)"; \
-       echo "@@"; \
-       echo;
-  ifeq ($(CONFIG_LINUX_$(call confname,$(KERNEL)_$(1))),y)
-    PROFILE=$(1)
-  endif
-endef
-
-$(eval $(call shexport,Target/Description))
+  download: $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
+  prepare: $(STAMP_CONFIGURED)
+  compile: $(LINUX_DIR)/.modules
+       $(MAKE) -C image compile TARGET_BUILD=
 
-download: $(DL_DIR)/$(LINUX_SOURCE)
-prepare: $(STAMP_CONFIGURED)
-compile: $(LINUX_DIR)/.modules
-oldconfig menuconfig: $(STAMP_PREPARED) FORCE
-       $(SCRIPT_DIR)/config.pl '+' $(GENERIC_LINUX_CONFIG) $(LINUX_CONFIG) > $(LINUX_DIR)/.config
-       $(call Kernel/Configure)
-       $(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $@
-       $(SCRIPT_DIR)/config.pl '>' $(GENERIC_LINUX_CONFIG) $(LINUX_DIR)/.config > $(LINUX_CONFIG)
+  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
+  install: $(LINUX_DIR)/.image
+       +$(MAKE) -C image compile install TARGET_BUILD=
 
-clean: FORCE
-       rm -f $(STAMP_DIR)/.linux-compile
+  clean: FORCE
        rm -rf $(KERNEL_BUILD_DIR)
 
-rebuild: FORCE
-       @$(MAKE) mostlyclean
-       @if [ -f $(LINUX_KERNEL) ]; then \
-               $(MAKE) clean; \
-       fi
-       @$(MAKE) compile
+  image-prereq:
+       @+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
 
+  prereq: image-prereq
 
+endef