X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fopenwrt.git;a=blobdiff_plain;f=include%2Fkernel-build.mk;h=f1372df7ce7eb5955bf75861c92e28508f67ae85;hp=648e65848a41cc8e78ad61949a682a34a3594d66;hb=f3923dab7b79e436292ce51c2cdc358dac2c81f3;hpb=fd8142403e749b00e701f1c6831e8fc48f19c374

diff --git a/include/kernel-build.mk b/include/kernel-build.mk
index 648e65848a..f1372df7ce 100644
--- a/include/kernel-build.mk
+++ b/include/kernel-build.mk
@@ -6,13 +6,14 @@
 #
 include $(INCLUDE_DIR)/host.mk
 include $(INCLUDE_DIR)/prereq.mk
+include $(INCLUDE_DIR)/depends.mk
 
 ifneq ($(DUMP),1)
   all: compile
 endif
 
-export QUILT=1
-STAMP_PREPARED:=$(LINUX_DIR)/.prepared
+KERNEL_FILE_DEPENDS=$(GENERIC_PATCH_DIR) $(PATCH_DIR) $(GENERIC_FILES_DIR) $(FILES_DIR)
+STAMP_PREPARED=$(LINUX_DIR)/.prepared$(if $(QUILT)$(DUMP),,_$(shell $(call find_md5,$(KERNEL_FILE_DEPENDS),)))
 STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
 include $(INCLUDE_DIR)/download.mk
 include $(INCLUDE_DIR)/quilt.mk
@@ -32,6 +33,7 @@ endef
 
 define Kernel/CompileImage
 	$(call Kernel/CompileImage/Default)
+	$(call Kernel/CompileImage/Initramfs)
 endef
 
 define Kernel/Clean
@@ -53,43 +55,65 @@ ifdef CONFIG_COLLECT_KERNEL_DEBUG
 		$(STAGING_DIR_ROOT)/lib/modules/$(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
+	$(TAR) c -C $(KERNEL_BUILD_DIR) debug \
+		$(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
+		| bzip2 -c -9 > $(BIN_DIR)/kernel-debug.tar.bz2
   endef
 endif
 
+ifeq ($(DUMP)$(filter prereq clean refresh update,$(MAKECMDGOALS)),)
+  ifneq ($(if $(QUILT),,$(CONFIG_AUTOREBUILD)),)
+    define Kernel/Autoclean
+      $(PKG_BUILD_DIR)/.dep_files: $(STAMP_PREPARED)
+      $(call rdep,$(KERNEL_FILE_DEPENDS),$(STAMP_PREPARED),$(PKG_BUILD_DIR)/.dep_files,-x "*/.dep_*")
+    endef
+  endif
+endif
+
 define BuildKernel
   $(if $(QUILT),$(Build/Quilt))
   $(if $(LINUX_SITE),$(call Download,kernel))
 
-  $(STAMP_PREPARED): $(DL_DIR)/$(LINUX_SOURCE)
+  .NOTPARALLEL:
+
+  $(Kernel/Autoclean)
+  $(STAMP_PREPARED): $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
 	-rm -rf $(KERNEL_BUILD_DIR)
 	-mkdir -p $(KERNEL_BUILD_DIR)
 	$(Kernel/Prepare)
 	touch $$@
 
-  $(KERNEL_BUILD_DIR)/symtab.txt: FORCE
+  $(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)/symtab.h: $(KERNEL_BUILD_DIR)/symtab.txt
+		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)/symtab.txt | \
-			awk '{print "*(__ksymtab." $$$$1 ") \\" }'; \
+		cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+			awk '{print "KEEP(*(___ksymtab+" $$$$1 ")) \\" }'; \
 		echo; \
 		echo '#define SYMTAB_KEEP_GPL \'; \
-		cat $(KERNEL_BUILD_DIR)/symtab.txt | \
-			awk '{print "*(__ksymtab_gpl." $$$$1 ") \\" }'; \
+		cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+			awk '{print "KEEP(*(___ksymtab_gpl+" $$$$1 ")) \\" }'; \
+		echo; \
+		echo '#define SYMTAB_DISCARD \'; \
+		cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+			awk '{print "*(___ksymtab+" $$$$1 ") \\" }'; \
 		echo; \
-		echo '#define SYMTAB_KEEP_STR \'; \
-		cat $(KERNEL_BUILD_DIR)/symtab.txt | \
-			awk '{print "*(__ksymtab_strings." $$$$1 ") \\" }'; \
+		echo '#define SYMTAB_DISCARD_GPL \'; \
+		cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+			awk '{print "*(___ksymtab_gpl+" $$$$1 ") \\" }'; \
 		echo; \
 	) > $$@
 
-  $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_CONFIG) $(GENERIC_LINUX_CONFIG) $(TOPDIR)/.config
+  $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config FORCE
 	$(Kernel/Configure)
 	touch $$@
 
@@ -108,19 +132,17 @@ 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) $(STAMP_CHECKED) FORCE
-	[ -e "$(LINUX_CONFIG)" ] || touch "$(LINUX_CONFIG)"
-	$(LINUX_CONFCMD) > $(LINUX_DIR)/.config
-	touch $(LINUX_CONFIG)
+  oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
+	rm -f $(LINUX_DIR)/.config.prev
+	rm -f $(STAMP_CONFIGURED)
+	$(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
 	$(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
-	$(SCRIPT_DIR)/kconfig.pl '>' $(if $(LINUX_SUBCONFIG),'+' $(GENERIC_LINUX_CONFIG) $(LINUX_CONFIG),$(GENERIC_LINUX_CONFIG)) \
-		$(LINUX_DIR)/.config > $(if $(LINUX_SUBCONFIG),$(LINUX_SUBCONFIG),$(LINUX_CONFIG))
-	$(Kernel/Configure)
+	$(LINUX_RECONF_DIFF) $(LINUX_DIR)/.config > $(LINUX_RECONFIG_TARGET)
 
   install: $(LINUX_DIR)/.image
 	+$(MAKE) -C image compile install TARGET_BUILD=