image.mk: add Build step combined-image
[openwrt/svn-archive/archive.git] / include / kernel-build.mk
index 678cf18..9abfd54 100644 (file)
@@ -7,14 +7,11 @@
 include $(INCLUDE_DIR)/host.mk
 include $(INCLUDE_DIR)/prereq.mk
 
-ifneq ($(DUMP),1)
-  override MAKEFLAGS=
-endif
-
 ifneq ($(DUMP),1)
   all: compile
 endif
 
+export QUILT=1
 STAMP_PREPARED:=$(LINUX_DIR)/.prepared
 STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
 include $(INCLUDE_DIR)/download.mk
@@ -35,6 +32,7 @@ endef
 
 define Kernel/CompileImage
        $(call Kernel/CompileImage/Default)
+       $(call Kernel/CompileImage/Initramfs)
 endef
 
 define Kernel/Clean
@@ -47,17 +45,62 @@ define Download/kernel
   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
   $(if $(QUILT),$(Build/Quilt))
   $(if $(LINUX_SITE),$(call Download,kernel))
 
-  $(STAMP_PREPARED): $(DL_DIR)/$(LINUX_SOURCE)
+  .NOTPARALLEL:
+
+  $(STAMP_PREPARED): $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
        -rm -rf $(KERNEL_BUILD_DIR)
        -mkdir -p $(KERNEL_BUILD_DIR)
        $(Kernel/Prepare)
        touch $$@
 
-  $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_CONFIG) $(GENERIC_LINUX_CONFIG) $(TOPDIR)/.config
+  $(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 $$@
 
@@ -65,8 +108,9 @@ define BuildKernel
        $(Kernel/CompileModules)
        touch $$@
 
-  $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) FORCE
+  $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) $(if $(CONFIG_STRIP_KERNEL_EXPORTS),$(KERNEL_BUILD_DIR)/symtab.h) FORCE
        $(Kernel/CompileImage)
+       $(Kernel/CollectDebug)
        touch $$@
        
   mostlyclean: FORCE
@@ -75,32 +119,25 @@ define BuildKernel
   define BuildKernel
   endef
 
-  download: $(DL_DIR)/$(LINUX_SOURCE)
+  download: $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
   prepare: $(STAMP_CONFIGURED)
   compile: $(LINUX_DIR)/.modules
        $(MAKE) -C image compile TARGET_BUILD=
 
-  oldconfig menuconfig: $(STAMP_PREPARED) FORCE
-       $(LINUX_CONFCMD) > $(LINUX_DIR)/.config
-       $(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
-       $(SCRIPT_DIR)/kconfig.pl '>' $(GENERIC_LINUX_CONFIG) $(LINUX_DIR)/.config > $(LINUX_CONFIG)
-       $(Kernel/Configure)
+  oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
+       rm -f $(STAMP_CONFIGURED)
+       $(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
+       $(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
+       $(LINUX_RECONF_DIFF) $(LINUX_DIR)/.config > $(LINUX_RECONFIG_TARGET)
 
   install: $(LINUX_DIR)/.image
-       TARGET_BUILD="" $(MAKE) -C image compile install
+       +$(MAKE) -C image compile install TARGET_BUILD=
 
   clean: FORCE
        rm -rf $(KERNEL_BUILD_DIR)
 
-  rebuild: FORCE
-       @$(MAKE) mostlyclean
-       @if [ -f $(LINUX_KERNEL) ]; then \
-               $(MAKE) clean; \
-       fi
-       @$(MAKE) compile
-
   image-prereq:
-       $(SUBMAKE) -s -C image prereq TARGET_BUILD=
+       @+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
 
   prereq: image-prereq