mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
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0a4b9c0e44
- support kernel config overlays in env/ - allow overriding the target kernel config with CONFIG_TARGET=platform|subtarget|env git-svn-id: svn://svn.openwrt.org/openwrt/trunk@26498 3c298f89-4303-0410-b956-a3cf2f4a3e73
134 lines
3.4 KiB
Makefile
134 lines
3.4 KiB
Makefile
#
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# Copyright (C) 2006-2007 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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include $(INCLUDE_DIR)/host.mk
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include $(INCLUDE_DIR)/prereq.mk
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ifneq ($(DUMP),1)
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all: compile
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endif
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export QUILT=1
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STAMP_PREPARED:=$(LINUX_DIR)/.prepared
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STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
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include $(INCLUDE_DIR)/download.mk
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include $(INCLUDE_DIR)/quilt.mk
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include $(INCLUDE_DIR)/kernel-defaults.mk
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define Kernel/Prepare
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$(call Kernel/Prepare/Default)
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endef
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define Kernel/Configure
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$(call Kernel/Configure/Default)
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endef
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define Kernel/CompileModules
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$(call Kernel/CompileModules/Default)
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endef
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define Kernel/CompileImage
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$(call Kernel/CompileImage/Default)
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endef
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define Kernel/Clean
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$(call Kernel/Clean/Default)
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endef
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define Download/kernel
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URL:=$(LINUX_SITE)
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FILE:=$(LINUX_SOURCE)
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MD5SUM:=$(LINUX_KERNEL_MD5SUM)
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endef
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ifdef CONFIG_COLLECT_KERNEL_DEBUG
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define Kernel/CollectDebug
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rm -rf $(KERNEL_BUILD_DIR)/debug
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mkdir -p $(KERNEL_BUILD_DIR)/debug/modules
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$(CP) $(LINUX_DIR)/vmlinux $(KERNEL_BUILD_DIR)/debug/
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-$(CP) \
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$(STAGING_DIR_ROOT)/lib/modules/$(LINUX_VERSION)/* \
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$(KERNEL_BUILD_DIR)/debug/modules/
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$(FIND) $(KERNEL_BUILD_DIR)/debug -type f | $(XARGS) $(KERNEL_CROSS)strip --only-keep-debug
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$(TAR) c -C $(KERNEL_BUILD_DIR) debug | bzip2 -c -9 > $(BIN_DIR)/kernel-debug.tar.bz2
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endef
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endif
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define BuildKernel
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$(if $(QUILT),$(Build/Quilt))
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$(if $(LINUX_SITE),$(call Download,kernel))
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$(STAMP_PREPARED): $(DL_DIR)/$(LINUX_SOURCE)
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-rm -rf $(KERNEL_BUILD_DIR)
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-mkdir -p $(KERNEL_BUILD_DIR)
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$(Kernel/Prepare)
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touch $$@
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$(KERNEL_BUILD_DIR)/symtab.txt: FORCE
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find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \
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xargs $(TARGET_CROSS)nm | \
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awk '$$$$1 == "U" { print $$$$2 } ' | \
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sort -u > $$@
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$(KERNEL_BUILD_DIR)/symtab.h: $(KERNEL_BUILD_DIR)/symtab.txt
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( \
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echo '#define SYMTAB_KEEP \'; \
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cat $(KERNEL_BUILD_DIR)/symtab.txt | \
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awk '{print "*(__ksymtab." $$$$1 ") \\" }'; \
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echo; \
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echo '#define SYMTAB_KEEP_GPL \'; \
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cat $(KERNEL_BUILD_DIR)/symtab.txt | \
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awk '{print "*(__ksymtab_gpl." $$$$1 ") \\" }'; \
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echo; \
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echo '#define SYMTAB_KEEP_STR \'; \
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cat $(KERNEL_BUILD_DIR)/symtab.txt | \
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awk '{print "*(__ksymtab_strings." $$$$1 ") \\" }'; \
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echo; \
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) > $$@
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$(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config
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$(Kernel/Configure)
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touch $$@
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$(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
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$(Kernel/CompileModules)
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touch $$@
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$(LINUX_DIR)/.image: $(STAMP_CONFIGURED) $(if $(CONFIG_STRIP_KERNEL_EXPORTS),$(KERNEL_BUILD_DIR)/symtab.h) FORCE
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$(Kernel/CompileImage)
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$(Kernel/CollectDebug)
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touch $$@
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mostlyclean: FORCE
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$(Kernel/Clean)
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define BuildKernel
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endef
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download: $(DL_DIR)/$(LINUX_SOURCE)
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prepare: $(STAMP_CONFIGURED)
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compile: $(LINUX_DIR)/.modules
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$(MAKE) -C image compile TARGET_BUILD=
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oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
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rm -f $(STAMP_CONFIGURED)
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$(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
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$(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
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$(LINUX_RECONF_DIFF) $(LINUX_DIR)/.config > $(LINUX_RECONFIG_TARGET)
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install: $(LINUX_DIR)/.image
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+$(MAKE) -C image compile install TARGET_BUILD=
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clean: FORCE
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rm -rf $(KERNEL_BUILD_DIR)
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image-prereq:
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@+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
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prereq: image-prereq
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endef
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