X-Git-Url: http://git.openwrt.org/?p=openwrt%2Fopenwrt.git;a=blobdiff_plain;f=include%2Fkernel-build.mk;h=7d1e23c6eaa10972de071f28cbbb40047c49de15;hp=65907600c983584b275e717df49e7bb092b2bdc3;hb=c6fe325587b1955f84c339a2ae17da28dc4e6bec;hpb=a9d683ca912b2c4837b2e65909c09ca01babe3df diff --git a/include/kernel-build.mk b/include/kernel-build.mk index 65907600c9..7d1e23c6ea 100644 --- a/include/kernel-build.mk +++ b/include/kernel-build.mk @@ -4,19 +4,17 @@ # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. # -include $(INCLUDE_DIR)/host.mk include $(INCLUDE_DIR)/prereq.mk - -ifneq ($(DUMP),1) - override MAKEFLAGS= -endif +include $(INCLUDE_DIR)/depends.mk ifneq ($(DUMP),1) all: compile endif -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 include $(INCLUDE_DIR)/kernel-defaults.mk @@ -34,26 +32,106 @@ endef define Kernel/CompileImage $(call Kernel/CompileImage/Default) + $(call Kernel/CompileImage/Initramfs) endef define Kernel/Clean $(call Kernel/Clean/Default) endef -define BuildKernel - ifneq ($(LINUX_SITE),) - $(DL_DIR)/$(LINUX_SOURCE): - -mkdir -p $(DL_DIR) - $(SCRIPT_DIR)/download.pl $(DL_DIR) $(LINUX_SOURCE) $(LINUX_KERNEL_MD5SUM) $(LINUX_SITE) +define Download/kernel + URL:=$(LINUX_SITE) + FILE:=$(LINUX_SOURCE) + HASH:=$(LINUX_KERNEL_HASH) +endef + +KERNEL_GIT_OPTS:= +ifneq ($(strip $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)),"") + KERNEL_GIT_OPTS+=--reference $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY) +endif + +ifneq ($(strip $(CONFIG_KERNEL_GIT_BRANCH)),"") + KERNEL_GIT_OPTS+=--branch $(CONFIG_KERNEL_GIT_BRANCH) +endif + +define Download/git-kernel + URL:=$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)) + PROTO:=git + VERSION:=$(CONFIG_KERNEL_GIT_BRANCH) + FILE:=$(LINUX_SOURCE) + SUBDIR:=linux-$(LINUX_VERSION) + OPTS:=$(KERNEL_GIT_OPTS) +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 \ + $(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 - $(STAMP_PREPARED): $(DL_DIR)/$(LINUX_SOURCE) +define BuildKernel + $(if $(QUILT),$(Build/Quilt)) + $(if $(LINUX_SITE),$(call Download,kernel)) + $(if $(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),$(call Download,git-kernel)) + + .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 $$@ - $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_CONFIG) $(GENERIC_LINUX_CONFIG) $(TOPDIR)/.config + $(KERNEL_BUILD_DIR)/symtab.h: FORCE + rm -f $(KERNEL_BUILD_DIR)/symtab.h + touch $(KERNEL_BUILD_DIR)/symtab.h + +$(MAKE) $(KERNEL_MAKEOPTS) vmlinux + find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \ + xargs $(TARGET_CROSS)nm | \ + awk '$$$$1 == "U" { print $$$$2 } ' | \ + sort -u > $(KERNEL_BUILD_DIR)/mod_symtab.txt + $(TARGET_CROSS)nm -n $(LINUX_DIR)/vmlinux.o | grep ' [rR] __ksymtab' | sed -e 's,........ [rR] __ksymtab_,,' > $(KERNEL_BUILD_DIR)/kernel_symtab.txt + grep -Ff $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_include.txt + grep -Fvf $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_exclude.txt + ( \ + echo '#define SYMTAB_KEEP \'; \ + cat $(KERNEL_BUILD_DIR)/sym_include.txt | \ + awk '{print "KEEP(*(___ksymtab+" $$$$1 ")) \\" }'; \ + echo; \ + echo '#define SYMTAB_KEEP_GPL \'; \ + cat $(KERNEL_BUILD_DIR)/sym_include.txt | \ + awk '{print "KEEP(*(___ksymtab_gpl+" $$$$1 ")) \\" }'; \ + echo; \ + echo '#define SYMTAB_DISCARD \'; \ + cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \ + awk '{print "*(___ksymtab+" $$$$1 ") \\" }'; \ + echo; \ + echo '#define SYMTAB_DISCARD_GPL \'; \ + cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \ + awk '{print "*(___ksymtab_gpl+" $$$$1 ") \\" }'; \ + echo; \ + ) > $$@ + + $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config FORCE $(Kernel/Configure) touch $$@ @@ -61,8 +139,9 @@ define BuildKernel $(Kernel/CompileModules) touch $$@ - $(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 $$@ mostlyclean: FORCE @@ -71,32 +150,26 @@ define BuildKernel define BuildKernel endef - download: $(DL_DIR)/$(LINUX_SOURCE) - prepare: $(STAMP_CONFIGURED) + download: $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE)) + prepare: $(STAMP_PREPARED) compile: $(LINUX_DIR)/.modules $(MAKE) -C image compile TARGET_BUILD= - oldconfig menuconfig: $(STAMP_PREPARED) FORCE - $(Kernel/Configure) - $(LINUX_CONFCMD) > $(LINUX_DIR)/.config - $(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $@ - $(SCRIPT_DIR)/kconfig.pl '>' $(GENERIC_LINUX_CONFIG) $(LINUX_DIR)/.config > $(LINUX_CONFIG) + oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE + rm -f $(LINUX_DIR)/.config.prev + rm -f $(STAMP_CONFIGURED) + $(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config + $(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) HOST_LOADLIBES="-L$(STAGING_DIR_HOST)/lib -lncurses" $$@ + $(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