+# SPDX-License-Identifier: GPL-2.0-only
#
-# Copyright (C) 2006-2007 OpenWrt.org
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
-include $(INCLUDE_DIR)/host.mk
+# Copyright (C) 2006-2020 OpenWrt.org
+
include $(INCLUDE_DIR)/prereq.mk
+include $(INCLUDE_DIR)/depends.mk
ifneq ($(DUMP),1)
all: compile
endif
-STAMP_PREPARED:=$(LINUX_DIR)/.prepared
+KERNEL_FILE_DEPENDS=$(GENERIC_BACKPORT_DIR) $(GENERIC_PATCH_DIR) $(GENERIC_HACK_DIR) $(PATCH_DIR) $(GENERIC_FILES_DIR) $(FILES_DIR)
+STAMP_PREPARED=$(LINUX_DIR)/.prepared$(if $(QUILT)$(DUMP),,_$(shell $(call $(if $(CONFIG_AUTOREMOVE),find_md5_reproducible,find_md5),$(KERNEL_FILE_DEPENDS),)))
STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
include $(INCLUDE_DIR)/download.mk
include $(INCLUDE_DIR)/quilt.mk
define Kernel/CompileImage
$(call Kernel/CompileImage/Default)
+ $(call Kernel/CompileImage/Initramfs)
endef
define Kernel/Clean
define Download/kernel
URL:=$(LINUX_SITE)
FILE:=$(LINUX_SOURCE)
- MD5SUM:=$(LINUX_KERNEL_MD5SUM)
+ HASH:=$(LINUX_KERNEL_HASH)
+endef
+
+KERNEL_GIT_OPTS:=
+ifneq ($(strip $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)),"")
+ KERNEL_GIT_OPTS+=--reference $(CONFIG_KERNEL_GIT_LOCAL_REPOSITORY)
+endif
+
+define Download/git-kernel
+ URL:=$(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI))
+ PROTO:=git
+ VERSION:=$(CONFIG_KERNEL_GIT_REF)
+ 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)/*.ko \
+ $(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)") \
+ | zstd -T0 -f -o $(BIN_DIR)/kernel-debug.tar.zst
+ endef
+endif
+
+ifeq ($(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))
+ $(if $(call qstrip,$(CONFIG_KERNEL_GIT_CLONE_URI)),$(call Download,git-kernel))
+
+ .NOTPARALLEL:
- $(STAMP_PREPARED): $(DL_DIR)/$(LINUX_SOURCE)
+ $(Kernel/Autoclean)
+ $(STAMP_PREPARED): $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
-rm -rf $(KERNEL_BUILD_DIR)
-mkdir -p $(KERNEL_BUILD_DIR)
$(Kernel/Prepare)
touch $$@
- $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_CONFIG) $(GENERIC_LINUX_CONFIG) $(TOPDIR)/.config
+ $(KERNEL_BUILD_DIR)/symtab.h: FORCE
+ rm -f $(KERNEL_BUILD_DIR)/symtab.h
+ touch $(KERNEL_BUILD_DIR)/symtab.h
+ +$(KERNEL_MAKE) vmlinux
+ find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \
+ xargs $(TARGET_CROSS)nm | \
+ awk '$$$$1 == "U" { print $$$$2 } ' | \
+ sort -u > $(KERNEL_BUILD_DIR)/mod_symtab.txt
+ $(TARGET_CROSS)nm -n $(LINUX_DIR)/vmlinux.o | awk '/^[0-9a-f]+ [rR] __ksymtab_/ {print substr($$$$3,11)}' > $(KERNEL_BUILD_DIR)/kernel_symtab.txt
+ grep -Ff $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_include.txt
+ grep -Fvf $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_exclude.txt
+ ( \
+ echo '#define SYMTAB_KEEP \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+ awk '{print "KEEP(*(___ksymtab+" $$$$1 ")) \\" }'; \
+ echo; \
+ echo '#define SYMTAB_KEEP_GPL \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
+ awk '{print "KEEP(*(___ksymtab_gpl+" $$$$1 ")) \\" }'; \
+ echo; \
+ echo '#define SYMTAB_DISCARD \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+ awk '{print "*(___ksymtab+" $$$$1 ") \\" }'; \
+ echo; \
+ echo '#define SYMTAB_DISCARD_GPL \'; \
+ cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
+ awk '{print "*(___ksymtab_gpl+" $$$$1 ") \\" }'; \
+ echo; \
+ ) > $$@
+
+ $(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config FORCE
$(Kernel/Configure)
touch $$@
+ $(LINUX_DIR)/.modules: export STAGING_PREFIX=$$(STAGING_DIR_HOST)
+ $(LINUX_DIR)/.modules: export PKG_CONFIG_PATH=$$(STAGING_DIR_HOST)/lib/pkgconfig
+ $(LINUX_DIR)/.modules: export PKG_CONFIG_LIBDIR=$$(STAGING_DIR_HOST)/lib/pkgconfig
+ $(LINUX_DIR)/.modules: export FAIL_ON_UNCONFIGURED=1
$(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
$(Kernel/CompileModules)
touch $$@
- $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) FORCE
+ $(LINUX_DIR)/.image: export STAGING_PREFIX=$$(STAGING_DIR_HOST)
+ $(LINUX_DIR)/.image: export PKG_CONFIG_PATH=$$(STAGING_DIR_HOST)/lib/pkgconfig
+ $(LINUX_DIR)/.image: export PKG_CONFIG_LIBDIR=$$(STAGING_DIR_HOST)/lib/pkgconfig
+ $(LINUX_DIR)/.image: $(STAMP_CONFIGURED) $(if $(CONFIG_STRIP_KERNEL_EXPORTS),$(KERNEL_BUILD_DIR)/symtab.h) FORCE
$(Kernel/CompileImage)
+ $(Kernel/CollectDebug)
touch $$@
mostlyclean: FORCE
define BuildKernel
endef
- download: $(DL_DIR)/$(LINUX_SOURCE)
- prepare: $(STAMP_CONFIGURED)
+ download: $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
+ prepare: $(STAMP_PREPARED)
compile: $(LINUX_DIR)/.modules
$(MAKE) -C image compile TARGET_BUILD=
- oldconfig menuconfig: $(STAMP_PREPARED) FORCE
- [ -e "$(LINUX_CONFIG)" ] || touch "$(LINUX_CONFIG)"
- $(LINUX_CONFCMD) > $(LINUX_DIR)/.config
- touch $(LINUX_CONFIG)
- $(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
- $(SCRIPT_DIR)/kconfig.pl '>' $(GENERIC_LINUX_CONFIG) $(LINUX_DIR)/.config > $(LINUX_CONFIG)
- $(Kernel/Configure)
+ dtb: $(STAMP_CONFIGURED)
+ $(_SINGLE)$(KERNEL_MAKE) scripts_dtc
+ $(MAKE) -C image compile-dtb TARGET_BUILD=
+
+ oldconfig menuconfig nconfig xconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
+ rm -f $(LINUX_DIR)/.config.prev
+ rm -f $(STAMP_CONFIGURED)
+ $(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
+ $(_SINGLE)$(KERNEL_MAKE) \
+ $(if $(findstring Darwin,$(HOST_OS)), \
+ HOSTLDLIBS_mconf="-L$(STAGING_DIR_HOST)/lib -lncurses" \
+ filechk_conf_cfg=" :" \
+ ) \
+ YACC=$(STAGING_DIR_HOST)/bin/bison \
+ $$@
+ $(call LINUX_RECONF_DIFF,$(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:
- @$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
+ @+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
prereq: image-prereq
projects / openwrt / openwrt.git / blobdiff