2020-09-22 02:48:37 +00:00
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# SPDX-License-Identifier: GPL-2.0-only
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2007-09-08 19:55:42 +00:00
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#
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2020-09-22 02:48:37 +00:00
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# Copyright (C) 2006-2020 OpenWrt.org
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2006-11-18 21:12:18 +00:00
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include $(INCLUDE_DIR)/prereq.mk
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2016-08-05 12:08:47 +00:00
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include $(INCLUDE_DIR)/depends.mk
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2006-11-18 21:12:18 +00:00
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2007-09-08 19:55:42 +00:00
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ifneq ($(DUMP),1)
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2006-11-11 23:11:02 +00:00
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all: compile
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endif
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2018-07-14 11:07:34 +00:00
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KERNEL_FILE_DEPENDS=$(GENERIC_BACKPORT_DIR) $(GENERIC_PATCH_DIR) $(GENERIC_HACK_DIR) $(PATCH_DIR) $(GENERIC_FILES_DIR) $(FILES_DIR)
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2016-08-05 12:08:47 +00:00
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STAMP_PREPARED=$(LINUX_DIR)/.prepared$(if $(QUILT)$(DUMP),,_$(shell $(call find_md5,$(KERNEL_FILE_DEPENDS),)))
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2007-06-03 08:28:05 +00:00
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STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
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2007-09-29 00:05:48 +00:00
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include $(INCLUDE_DIR)/download.mk
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2007-06-03 08:28:05 +00:00
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include $(INCLUDE_DIR)/quilt.mk
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2007-03-24 13:42:54 +00:00
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include $(INCLUDE_DIR)/kernel-defaults.mk
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2006-10-10 13:41:00 +00:00
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2006-10-19 06:20:55 +00:00
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define Kernel/Prepare
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$(call Kernel/Prepare/Default)
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endef
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2006-01-10 19:43:00 +00:00
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2006-10-19 06:20:55 +00:00
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define Kernel/Configure
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$(call Kernel/Configure/Default)
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endef
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2006-01-10 19:43:00 +00:00
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2006-10-19 06:20:55 +00:00
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define Kernel/CompileModules
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$(call Kernel/CompileModules/Default)
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endef
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define Kernel/CompileImage
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$(call Kernel/CompileImage/Default)
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2013-06-27 19:58:20 +00:00
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$(call Kernel/CompileImage/Initramfs)
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2006-10-19 06:20:55 +00:00
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endef
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2006-01-10 19:43:00 +00:00
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2006-10-19 06:20:55 +00:00
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define Kernel/Clean
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$(call Kernel/Clean/Default)
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endef
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2007-09-29 00:05:48 +00:00
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define Download/kernel
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URL:=$(LINUX_SITE)
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FILE:=$(LINUX_SOURCE)
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2016-12-16 16:32:10 +00:00
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HASH:=$(LINUX_KERNEL_HASH)
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2007-09-29 00:05:48 +00:00
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endef
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2016-11-09 17:34:18 +00:00
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KERNEL_GIT_OPTS:=
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ifneq ($(strip $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)),"")
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KERNEL_GIT_OPTS+=--reference $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)
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endif
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define Download/git-kernel
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URL:=$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI))
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PROTO:=git
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2018-01-17 12:05:57 +00:00
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VERSION:=$(CONFIG_KERNEL_GIT_REF)
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2016-11-09 17:34:18 +00:00
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FILE:=$(LINUX_SOURCE)
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2017-01-18 13:36:45 +00:00
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SUBDIR:=linux-$(LINUX_VERSION)
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2016-11-09 17:34:18 +00:00
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OPTS:=$(KERNEL_GIT_OPTS)
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endef
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2010-07-21 15:18:24 +00:00
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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) $(KERNEL_CROSS)strip --only-keep-debug
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2016-01-31 23:29:16 +00:00
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$(TAR) c -C $(KERNEL_BUILD_DIR) debug \
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$(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
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2020-05-13 18:33:46 +00:00
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| zstd -T0 -f -o $(BIN_DIR)/kernel-debug.tar.zst
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2010-07-21 15:18:24 +00:00
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endef
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endif
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2016-08-05 12:08:47 +00:00
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ifeq ($(DUMP)$(filter prereq clean refresh update,$(MAKECMDGOALS)),)
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ifneq ($(if $(QUILT),,$(CONFIG_AUTOREBUILD)),)
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define Kernel/Autoclean
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$(PKG_BUILD_DIR)/.dep_files: $(STAMP_PREPARED)
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2016-08-19 08:57:30 +00:00
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$(call rdep,$(KERNEL_FILE_DEPENDS),$(STAMP_PREPARED),$(PKG_BUILD_DIR)/.dep_files,-x "*/.dep_*")
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2016-08-05 12:08:47 +00:00
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endef
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endif
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endif
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2006-10-19 06:20:55 +00:00
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define BuildKernel
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2007-09-29 04:29:11 +00:00
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$(if $(QUILT),$(Build/Quilt))
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2007-09-29 00:05:48 +00:00
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$(if $(LINUX_SITE),$(call Download,kernel))
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2016-11-09 17:34:18 +00:00
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$(if $(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),$(call Download,git-kernel))
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2006-10-19 06:20:55 +00:00
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2014-10-12 15:00:19 +00:00
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.NOTPARALLEL:
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2016-08-05 12:08:47 +00:00
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$(Kernel/Autoclean)
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2011-10-03 11:33:13 +00:00
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$(STAMP_PREPARED): $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
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2006-10-19 06:20:55 +00:00
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-rm -rf $(KERNEL_BUILD_DIR)
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-mkdir -p $(KERNEL_BUILD_DIR)
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2007-09-08 19:55:42 +00:00
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$(Kernel/Prepare)
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2006-10-19 06:20:55 +00:00
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touch $$@
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2012-12-02 17:42:17 +00:00
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$(KERNEL_BUILD_DIR)/symtab.h: FORCE
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rm -f $(KERNEL_BUILD_DIR)/symtab.h
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touch $(KERNEL_BUILD_DIR)/symtab.h
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2017-03-16 08:53:30 +00:00
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+$(KERNEL_MAKE) vmlinux
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2009-08-08 14:22:04 +00:00
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find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \
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xargs $(TARGET_CROSS)nm | \
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awk '$$$$1 == "U" { print $$$$2 } ' | \
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2012-12-02 17:42:17 +00:00
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sort -u > $(KERNEL_BUILD_DIR)/mod_symtab.txt
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2020-12-30 20:04:42 +00:00
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$(TARGET_CROSS)nm -n $(LINUX_DIR)/vmlinux.o | awk '/^[0-9a-f]+ [rR] __ksymtab_/ {print substr($$$$3,11)}' > $(KERNEL_BUILD_DIR)/kernel_symtab.txt
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2013-12-14 13:14:44 +00:00
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grep -Ff $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_include.txt
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grep -Fvf $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_exclude.txt
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2009-08-08 14:22:04 +00:00
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( \
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echo '#define SYMTAB_KEEP \'; \
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2012-12-02 17:42:17 +00:00
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cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
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2013-01-26 16:26:13 +00:00
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awk '{print "KEEP(*(___ksymtab+" $$$$1 ")) \\" }'; \
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2009-08-08 14:22:04 +00:00
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echo; \
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echo '#define SYMTAB_KEEP_GPL \'; \
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2012-12-02 17:42:17 +00:00
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cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
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2013-01-26 16:26:13 +00:00
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awk '{print "KEEP(*(___ksymtab_gpl+" $$$$1 ")) \\" }'; \
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2012-12-02 17:42:17 +00:00
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echo; \
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echo '#define SYMTAB_DISCARD \'; \
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cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
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2013-01-26 16:26:04 +00:00
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awk '{print "*(___ksymtab+" $$$$1 ") \\" }'; \
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2012-12-02 17:42:17 +00:00
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echo; \
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echo '#define SYMTAB_DISCARD_GPL \'; \
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cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
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2013-01-26 16:26:04 +00:00
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awk '{print "*(___ksymtab_gpl+" $$$$1 ") \\" }'; \
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2012-12-02 17:42:17 +00:00
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echo; \
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2009-08-08 14:22:04 +00:00
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) > $$@
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2016-08-05 12:08:47 +00:00
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$(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config FORCE
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2007-09-08 19:55:42 +00:00
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$(Kernel/Configure)
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2006-10-19 06:20:55 +00:00
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touch $$@
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2006-01-10 19:43:00 +00:00
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2019-08-30 13:24:45 +00:00
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$(LINUX_DIR)/.modules: export STAGING_PREFIX=$$(STAGING_DIR_HOST)
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$(LINUX_DIR)/.modules: export PKG_CONFIG_PATH=$$(STAGING_DIR_HOST)/lib/pkgconfig
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$(LINUX_DIR)/.modules: export PKG_CONFIG_LIBDIR=$$(STAGING_DIR_HOST)/lib/pkgconfig
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2021-07-22 23:32:38 +00:00
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$(LINUX_DIR)/.modules: export FAIL_ON_UNCONFIGURED=1
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2007-07-16 05:28:13 +00:00
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$(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
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2007-09-08 19:55:42 +00:00
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$(Kernel/CompileModules)
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2006-10-19 06:20:55 +00:00
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touch $$@
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2006-01-10 19:43:00 +00:00
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2019-08-30 13:24:45 +00:00
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$(LINUX_DIR)/.image: export STAGING_PREFIX=$$(STAGING_DIR_HOST)
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$(LINUX_DIR)/.image: export PKG_CONFIG_PATH=$$(STAGING_DIR_HOST)/lib/pkgconfig
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$(LINUX_DIR)/.image: export PKG_CONFIG_LIBDIR=$$(STAGING_DIR_HOST)/lib/pkgconfig
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2009-08-08 14:22:04 +00:00
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$(LINUX_DIR)/.image: $(STAMP_CONFIGURED) $(if $(CONFIG_STRIP_KERNEL_EXPORTS),$(KERNEL_BUILD_DIR)/symtab.h) FORCE
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2007-09-08 19:55:42 +00:00
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$(Kernel/CompileImage)
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2010-07-21 15:18:24 +00:00
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$(Kernel/CollectDebug)
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2006-10-19 06:20:55 +00:00
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touch $$@
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mostlyclean: FORCE
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2007-09-08 19:55:42 +00:00
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$(Kernel/Clean)
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2006-11-12 05:06:56 +00:00
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2006-10-19 06:20:55 +00:00
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define BuildKernel
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endef
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2006-11-11 23:11:02 +00:00
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2014-06-02 12:43:13 +00:00
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download: $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
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2017-02-15 11:34:52 +00:00
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prepare: $(STAMP_PREPARED)
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2007-09-08 19:55:42 +00:00
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compile: $(LINUX_DIR)/.modules
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$(MAKE) -C image compile TARGET_BUILD=
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2007-08-07 00:04:25 +00:00
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2020-04-01 23:21:37 +00:00
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oldconfig menuconfig nconfig xconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
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2016-01-29 00:38:49 +00:00
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rm -f $(LINUX_DIR)/.config.prev
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2011-04-06 14:48:55 +00:00
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rm -f $(STAMP_CONFIGURED)
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$(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
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2017-06-07 16:14:27 +00:00
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$(_SINGLE)$(KERNEL_MAKE) \
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2020-04-07 12:26:42 +00:00
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$(if $(findstring Darwin,$(HOST_OS)), \
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HOST_LOADLIBES="-L$(STAGING_DIR_HOST)/lib -lncurses" \
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HOSTLDLIBS_mconf="-L$(STAGING_DIR_HOST)/lib -lncurses" \
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filechk_conf_cfg=" :" \
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) \
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2019-11-11 20:37:45 +00:00
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YACC=$(STAGING_DIR_HOST)/bin/bison \
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2017-06-07 16:14:27 +00:00
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$$@
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2020-10-20 19:36:52 +00:00
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$(call LINUX_RECONF_DIFF,$(LINUX_DIR)/.config) > $(LINUX_RECONFIG_TARGET)
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2007-02-16 16:59:44 +00:00
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2007-09-08 19:55:42 +00:00
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install: $(LINUX_DIR)/.image
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2008-08-16 16:59:47 +00:00
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+$(MAKE) -C image compile install TARGET_BUILD=
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2006-01-10 19:43:00 +00:00
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2007-09-08 19:55:42 +00:00
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clean: FORCE
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2006-10-19 06:20:55 +00:00
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rm -rf $(KERNEL_BUILD_DIR)
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2006-01-10 19:43:00 +00:00
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2007-09-08 19:55:42 +00:00
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image-prereq:
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2008-08-16 16:59:47 +00:00
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@+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
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2006-06-26 01:55:47 +00:00
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2007-09-08 19:55:42 +00:00
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prereq: image-prereq
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endef
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