X-Git-Url: https://git.archive.openwrt.org/?a=blobdiff_plain;f=include%2Fkernel-build.mk;h=2ae80e54e2ef51ef64df12b0fa6d9a1b626c493b;hb=f656f41c9311bf0a9cec064df82e55b25d97ef95;hp=089753e3a787b77c14ecfed3170f8b46bfa7a359;hpb=c66be709968b5485402ae887bde59404695ca3c2;p=openwrt.git

diff --git a/include/kernel-build.mk b/include/kernel-build.mk
index 089753e3a7..2ae80e54e2 100644
--- a/include/kernel-build.mk
+++ b/include/kernel-build.mk
@@ -11,6 +11,7 @@ ifneq ($(DUMP),1)
   all: compile
 endif
 
+export QUILT=1
 STAMP_PREPARED:=$(LINUX_DIR)/.prepared
 STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
 include $(INCLUDE_DIR)/download.mk
@@ -43,17 +44,68 @@ define Download/kernel
   MD5SUM:=$(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)
+  $(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 '$$$$1 == "U" { print $$$$2 } ' | \
+		sort -u > $(KERNEL_BUILD_DIR)/mod_symtab.txt
+	$(TARGET_CROSS)nm -n $(LINUX_DIR)/vmlinux.o | grep ' r __ksymtab' | sed -e 's,........ r __ksymtab_,,' > $(KERNEL_BUILD_DIR)/kernel_symtab.txt
+	grep -f $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_include.txt
+	grep -vf $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_exclude.txt
+	( \
+		echo '#define SYMTAB_KEEP \'; \
+		cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+			awk '{print "*(__ksymtab." $$$$1 ") \\" }'; \
+		echo; \
+		echo '#define SYMTAB_KEEP_GPL \'; \
+		cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+			awk '{print "*(__ksymtab_gpl." $$$$1 ") \\" }'; \
+		echo; \
+		echo '#define SYMTAB_KEEP_STR \'; \
+		cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+			awk '{print "*(__ksymtab_strings." $$$$1 ") \\" }'; \
+		echo; \
+		echo '#define SYMTAB_DISCARD \'; \
+		cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+			awk '{print "*(__ksymtab." $$$$1 ") \\" }'; \
+		echo; \
+		echo '#define SYMTAB_DISCARD_GPL \'; \
+		cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+			awk '{print "*(__ksymtab_gpl." $$$$1 ") \\" }'; \
+		echo; \
+		echo '#define SYMTAB_DISCARD_STR \'; \
+		cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+			awk '{print "*(__ksymtab_strings." $$$$1 ") \\" }'; \
+		echo; \
+	) > $$@
+
+  $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config
 	$(Kernel/Configure)
 	touch $$@
 
@@ -61,8 +113,9 @@ 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
@@ -76,13 +129,11 @@ define BuildKernel
   compile: $(LINUX_DIR)/.modules
 	$(MAKE) -C image compile TARGET_BUILD=
 
-  oldconfig menuconfig: $(STAMP_PREPARED) FORCE
-	[ -e "$(LINUX_CONFIG)" ] || touch "$(LINUX_CONFIG)"
-	$(LINUX_CONFCMD) > $(LINUX_DIR)/.config
-	touch $(LINUX_CONFIG)
+  oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
+	rm -f $(STAMP_CONFIGURED)
+	$(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
 	$(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
-	$(SCRIPT_DIR)/kconfig.pl '>' $(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=