a9eb4b0040
The --mtime argument to 'tar' sets the modification time for all files within the archive, which determines the timestamp files will get when they are extracted. In this case, rootfs and other tarballs will get mtimes which correspond to the last commit timestamp of the build system, as reported by git/subversion. This is a step towards reproducible image builds. Signed-off-by: bryan newbold <bnewbold@robocracy.org> Signed-off-by: Alexander Couzens <lynxis@fe80.eu> Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 48586
148 lines
4.2 KiB
Makefile
148 lines
4.2 KiB
Makefile
#
|
|
# 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
|
|
include $(INCLUDE_DIR)/prereq.mk
|
|
|
|
ifneq ($(DUMP),1)
|
|
all: compile
|
|
endif
|
|
|
|
export QUILT=1
|
|
STAMP_PREPARED:=$(LINUX_DIR)/.prepared
|
|
STAMP_CONFIGURED:=$(LINUX_DIR)/.configured
|
|
include $(INCLUDE_DIR)/download.mk
|
|
include $(INCLUDE_DIR)/quilt.mk
|
|
include $(INCLUDE_DIR)/kernel-defaults.mk
|
|
|
|
define Kernel/Prepare
|
|
$(call Kernel/Prepare/Default)
|
|
endef
|
|
|
|
define Kernel/Configure
|
|
$(call Kernel/Configure/Default)
|
|
endef
|
|
|
|
define Kernel/CompileModules
|
|
$(call Kernel/CompileModules/Default)
|
|
endef
|
|
|
|
define Kernel/CompileImage
|
|
$(call Kernel/CompileImage/Default)
|
|
$(call Kernel/CompileImage/Initramfs)
|
|
endef
|
|
|
|
define Kernel/Clean
|
|
$(call Kernel/Clean/Default)
|
|
endef
|
|
|
|
define Download/kernel
|
|
URL:=$(LINUX_SITE)
|
|
FILE:=$(LINUX_SOURCE)
|
|
MD5SUM:=$(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 \
|
|
$(if $(SOURCE_DATE_EPOCH),--mtime="@$(SOURCE_DATE_EPOCH)") \
|
|
| bzip2 -c -9 > $(BIN_DIR)/kernel-debug.tar.bz2
|
|
endef
|
|
endif
|
|
|
|
define BuildKernel
|
|
$(if $(QUILT),$(Build/Quilt))
|
|
$(if $(LINUX_SITE),$(call Download,kernel))
|
|
|
|
.NOTPARALLEL:
|
|
|
|
$(STAMP_PREPARED): $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
|
|
-rm -rf $(KERNEL_BUILD_DIR)
|
|
-mkdir -p $(KERNEL_BUILD_DIR)
|
|
$(Kernel/Prepare)
|
|
touch $$@
|
|
|
|
$(KERNEL_BUILD_DIR)/symtab.h: FORCE
|
|
rm -f $(KERNEL_BUILD_DIR)/symtab.h
|
|
touch $(KERNEL_BUILD_DIR)/symtab.h
|
|
+$(MAKE) $(KERNEL_MAKEOPTS) vmlinux
|
|
find $(LINUX_DIR) $(STAGING_DIR_ROOT)/lib/modules -name \*.ko | \
|
|
xargs $(TARGET_CROSS)nm | \
|
|
awk '$$$$1 == "U" { print $$$$2 } ' | \
|
|
sort -u > $(KERNEL_BUILD_DIR)/mod_symtab.txt
|
|
$(TARGET_CROSS)nm -n $(LINUX_DIR)/vmlinux.o | grep ' [rR] __ksymtab' | sed -e 's,........ [rR] __ksymtab_,,' > $(KERNEL_BUILD_DIR)/kernel_symtab.txt
|
|
grep -Ff $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_include.txt
|
|
grep -Fvf $(KERNEL_BUILD_DIR)/mod_symtab.txt $(KERNEL_BUILD_DIR)/kernel_symtab.txt > $(KERNEL_BUILD_DIR)/sym_exclude.txt
|
|
( \
|
|
echo '#define SYMTAB_KEEP \'; \
|
|
cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
|
|
awk '{print "KEEP(*(___ksymtab+" $$$$1 ")) \\" }'; \
|
|
echo; \
|
|
echo '#define SYMTAB_KEEP_GPL \'; \
|
|
cat $(KERNEL_BUILD_DIR)/sym_include.txt | \
|
|
awk '{print "KEEP(*(___ksymtab_gpl+" $$$$1 ")) \\" }'; \
|
|
echo; \
|
|
echo '#define SYMTAB_DISCARD \'; \
|
|
cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
|
|
awk '{print "*(___ksymtab+" $$$$1 ") \\" }'; \
|
|
echo; \
|
|
echo '#define SYMTAB_DISCARD_GPL \'; \
|
|
cat $(KERNEL_BUILD_DIR)/sym_exclude.txt | \
|
|
awk '{print "*(___ksymtab_gpl+" $$$$1 ") \\" }'; \
|
|
echo; \
|
|
) > $$@
|
|
|
|
$(STAMP_CONFIGURED): $(STAMP_PREPARED) $(LINUX_KCONFIG_LIST) $(TOPDIR)/.config
|
|
$(Kernel/Configure)
|
|
touch $$@
|
|
|
|
$(LINUX_DIR)/.modules: $(STAMP_CONFIGURED) $(LINUX_DIR)/.config FORCE
|
|
$(Kernel/CompileModules)
|
|
touch $$@
|
|
|
|
$(LINUX_DIR)/.image: $(STAMP_CONFIGURED) $(if $(CONFIG_STRIP_KERNEL_EXPORTS),$(KERNEL_BUILD_DIR)/symtab.h) FORCE
|
|
$(Kernel/CompileImage)
|
|
$(Kernel/CollectDebug)
|
|
touch $$@
|
|
|
|
mostlyclean: FORCE
|
|
$(Kernel/Clean)
|
|
|
|
define BuildKernel
|
|
endef
|
|
|
|
download: $(if $(LINUX_SITE),$(DL_DIR)/$(LINUX_SOURCE))
|
|
prepare: $(STAMP_CONFIGURED)
|
|
compile: $(LINUX_DIR)/.modules
|
|
$(MAKE) -C image compile TARGET_BUILD=
|
|
|
|
oldconfig menuconfig nconfig: $(STAMP_PREPARED) $(STAMP_CHECKED) FORCE
|
|
rm -f $(LINUX_DIR)/.config.prev
|
|
rm -f $(STAMP_CONFIGURED)
|
|
$(LINUX_RECONF_CMD) > $(LINUX_DIR)/.config
|
|
$(_SINGLE)$(MAKE) -C $(LINUX_DIR) $(KERNEL_MAKEOPTS) $$@
|
|
$(LINUX_RECONF_DIFF) $(LINUX_DIR)/.config > $(LINUX_RECONFIG_TARGET)
|
|
|
|
install: $(LINUX_DIR)/.image
|
|
+$(MAKE) -C image compile install TARGET_BUILD=
|
|
|
|
clean: FORCE
|
|
rm -rf $(KERNEL_BUILD_DIR)
|
|
|
|
image-prereq:
|
|
@+$(NO_TRACE_MAKE) -s -C image prereq TARGET_BUILD=
|
|
|
|
prereq: image-prereq
|
|
|
|
endef
|