ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/include/kernel-defaults.mk b/include/kernel-defaults.mk
new file mode 100644
index 0000000..8f09518
--- /dev/null
+++ b/include/kernel-defaults.mk
@@ -0,0 +1,245 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Copyright (C) 2006-2020 OpenWrt.org
+
+ifdef CONFIG_STRIP_KERNEL_EXPORTS
+ KERNEL_MAKEOPTS_IMAGE += \
+ EXTRA_LDSFLAGS="-I$(KERNEL_BUILD_DIR) -include symtab.h"
+endif
+
+INITRAMFS_EXTRA_FILES ?= $(GENERIC_PLATFORM_DIR)/image/initramfs-base-files.txt
+
+export HOST_EXTRACFLAGS=-I$(STAGING_DIR_HOST)/include
+
+# defined in quilt.mk
+Kernel/Patch:=$(Kernel/Patch/Default)
+
+ifneq (,$(findstring .xz,$(LINUX_SOURCE)))
+ LINUX_CAT:=xzcat
+else
+ LINUX_CAT:=$(STAGING_DIR_HOST)/bin/libdeflate-gzip -dc
+endif
+
+ifeq ($(strip $(CONFIG_EXTERNAL_KERNEL_TREE)),"")
+ ifeq ($(strip $(CONFIG_KERNEL_GIT_CLONE_URI)),"")
+ define Kernel/Prepare/Default
+ $(LINUX_CAT) $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
+ $(Kernel/Patch)
+ $(if $(QUILT),touch $(LINUX_DIR)/.quilt_used)
+ endef
+ else
+ define Kernel/Prepare/Default
+ $(LINUX_CAT) $(DL_DIR)/$(LINUX_SOURCE) | $(TAR) -C $(KERNEL_BUILD_DIR) $(TAR_OPTIONS)
+ endef
+ endif
+else
+ define Kernel/Prepare/Default
+ mkdir -p $(KERNEL_BUILD_DIR)
+ if [ -d $(LINUX_DIR) ]; then \
+ rmdir $(LINUX_DIR); \
+ fi
+ ifeq ($(wildcard $(PATCH_DIR)),)
+ ln -s $(CONFIG_EXTERNAL_KERNEL_TREE) $(LINUX_DIR)
+ else
+ cp -a $(CONFIG_EXTERNAL_KERNEL_TREE) $(LINUX_DIR)
+ $(if $(QUILT),rm -rf $(LINUX_DIR)/patches; mkdir -p $(LINUX_DIR)/patches)
+ find $(LINUX_DIR)/ -name \*.rej -or -name \*.orig | $(XARGS) rm -f
+ $(call PatchDir,$(LINUX_DIR),$(PATCH_DIR),)
+ $(if $(QUILT),touch $(LINUX_DIR)/.quilt_used)
+ endif
+ if [ -d $(LINUX_DIR)/user_headers ]; then \
+ rm -rf $(LINUX_DIR)/user_headers; \
+ fi
+ endef
+endif
+
+ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
+ ifeq ($(CONFIG_SECURE_IMA),y)
+ define Kernel/SetInitramfs/PreConfigure
+ grep -v INITRAMFS $(2)/.config.old > $(2)/.config
+ echo 'CONFIG_INITRAMFS_SOURCE="../../target/linux/mmp/files/initramfs"' >> $(2)/.config
+ endef
+ else
+ ifeq ($(CONFIG_TARGET_ROOTFS_INITRAMFS_SEPARATE),y)
+ define Kernel/SetInitramfs/PreConfigure
+ { \
+ grep -v -e CONFIG_BLK_DEV_INITRD $(2)/.config.old > $(2)/.config; \
+ echo 'CONFIG_BLK_DEV_INITRD=y' >> $(2)/.config; \
+ echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(2)/.config; \
+ }
+ endef
+ else
+ ifeq ($(strip $(CONFIG_EXTERNAL_CPIO)),"")
+ define Kernel/SetInitramfs/PreConfigure
+ { \
+ grep -v -e INITRAMFS -e CONFIG_RD_ -e CONFIG_BLK_DEV_INITRD $(2)/.config.old > $(2)/.config; \
+ echo 'CONFIG_BLK_DEV_INITRD=y' >> $(2)/.config; \
+ echo 'CONFIG_INITRAMFS_SOURCE="$(strip $(1) $(INITRAMFS_EXTRA_FILES))"' >> $(2)/.config; \
+ }
+ endef
+ else
+ define Kernel/SetInitramfs/PreConfigure
+ { \
+ grep -v INITRAMFS $(2)/.config.old > $(2)/.config; \
+ echo 'CONFIG_INITRAMFS_SOURCE="$(call qstrip,$(CONFIG_EXTERNAL_CPIO))"' >> $(2)/.config; \
+ }
+ endef
+ endif
+ endif
+ endif
+
+ define Kernel/SetInitramfs
+ { \
+ rm -f $(2)/.config.prev; \
+ mv $(2)/.config $(2)/.config.old; \
+ $(call Kernel/SetInitramfs/PreConfigure,$(1),$(2)); \
+ echo "# CONFIG_INITRAMFS_PRESERVE_MTIME is not set" >> $(2)/.config; \
+ $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS_SEPARATE),,echo "CONFIG_INITRAMFS_ROOT_UID=$(shell id -u)" >> $(2)/.config;) \
+ $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS_SEPARATE),,echo "CONFIG_INITRAMFS_ROOT_GID=$(shell id -g)" >> $(2)/.config;) \
+ $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS_SEPARATE), \
+ echo "# CONFIG_INITRAMFS_FORCE is not set" >> $(2)/.config;, \
+ $(if $(CONFIG_TARGET_INITRAMFS_FORCE), \
+ echo "CONFIG_INITRAMFS_FORCE=y" >> $(2)/.config;, \
+ echo "# CONFIG_INITRAMFS_FORCE is not set" >> $(2)/.config;)) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_NONE), \
+ echo "CONFIG_INITRAMFS_COMPRESSION_NONE=y" >> $(2)/.config;, \
+ echo "# CONFIG_INITRAMFS_COMPRESSION_NONE is not set" >> $(2)/.config; ) \
+ $(foreach ALGO,GZIP BZIP2 LZMA LZO XZ LZ4 ZSTD, \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_$(ALGO)), \
+ echo "CONFIG_INITRAMFS_COMPRESSION_$(ALGO)=y" >> $(2)/.config; $\, \
+ echo "# CONFIG_INITRAMFS_COMPRESSION_$(ALGO) is not set" >> $(2)/.config; $\) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_$(ALGO)), \
+ echo "CONFIG_RD_$(ALGO)=y" >> $(2)/.config; $\, \
+ echo "# CONFIG_RD_$(ALGO) is not set" >> $(2)/.config; $\) \
+ ) \
+ }
+ endef
+else
+endif
+
+define Kernel/SetNoInitramfs
+ mv $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config.old
+ grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config.set
+ echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config.set
+ echo '# CONFIG_INITRAMFS_FORCE is not set' >> $(LINUX_DIR)/.config.set
+ echo "# CONFIG_INITRAMFS_PRESERVE_MTIME is not set" >> $(LINUX_DIR)/.config.set
+endef
+
+define Kernel/Configure/Default
+ rm -f $(LINUX_DIR)/localversion
+ $(LINUX_CONF_CMD) > $(LINUX_DIR)/.config.target
+# copy CONFIG_KERNEL_* settings over to .config.target
+ awk '/^(#[[:space:]]+)?CONFIG_KERNEL/{sub("CONFIG_KERNEL_","CONFIG_");print}' $(TOPDIR)/.config >> $(LINUX_DIR)/.config.target
+ echo "# CONFIG_KALLSYMS_EXTRA_PASS is not set" >> $(LINUX_DIR)/.config.target
+ echo "# CONFIG_KALLSYMS_ALL is not set" >> $(LINUX_DIR)/.config.target
+ echo "CONFIG_KALLSYMS_UNCOMPRESSED=y" >> $(LINUX_DIR)/.config.target
+ $(SCRIPT_DIR)/package-metadata.pl kconfig $(TMP_DIR)/.packageinfo $(TOPDIR)/.config $(KERNEL_PATCHVER) > $(LINUX_DIR)/.config.override
+ $(SCRIPT_DIR)/kconfig.pl 'm+' '+' $(LINUX_DIR)/.config.target /dev/null $(LINUX_DIR)/.config.override > $(LINUX_DIR)/.config.set
+ $(call Kernel/SetNoInitramfs)
+ rm -rf $(KERNEL_BUILD_DIR)/modules
+ cmp -s $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config.prev || { \
+ cp $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config; \
+ cp $(LINUX_DIR)/.config.set $(LINUX_DIR)/.config.prev; \
+ }
+ $(_SINGLE) [ -d $(LINUX_DIR)/user_headers ] || $(KERNEL_MAKE) $(if $(findstring uml,$(BOARD)),ARCH=$(ARCH)) INSTALL_HDR_PATH=$(LINUX_DIR)/user_headers headers_install
+ grep '=[ym]' $(LINUX_DIR)/.config.set | LC_ALL=C sort | $(MKHASH) md5 > $(LINUX_DIR)/.vermagic
+endef
+
+define Kernel/Configure/Initramfs
+ $(call Kernel/SetInitramfs,$(1),$(2))
+endef
+
+define Kernel/CompileModules/Default
+ rm -f $(LINUX_DIR)/vmlinux $(LINUX_DIR)/System.map
+ +$(KERNEL_MAKE) $(if $(KERNELNAME),$(KERNELNAME),all) modules
+ # If .config did not change, use the previous timestamp to avoid package rebuilds
+ cmp -s $(LINUX_DIR)/.config $(LINUX_DIR)/.config.modules.save && \
+ mv $(LINUX_DIR)/.config.modules.save $(LINUX_DIR)/.config; \
+ $(CP) $(LINUX_DIR)/.config $(LINUX_DIR)/.config.modules.save
+endef
+
+OBJCOPY_STRIP = -R .reginfo -R .notes -R .note -R .comment -R .mdebug -R .note.gnu.build-id
+
+# AMD64 shares the location with x86
+ifeq ($(LINUX_KARCH),x86_64)
+IMAGES_DIR:=../../x86/boot
+endif
+
+# $1: image suffix
+# $2: Per Device Rootfs ID
+define Kernel/CopyImage
+ cmp -s $(LINUX_DIR)$(2)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).debug$(2) || { \
+ $(KERNEL_CROSS)objcopy -O binary $(OBJCOPY_STRIP) -S $(LINUX_DIR)$(2)/vmlinux $(LINUX_KERNEL)$(1)$(2); \
+ $(KERNEL_CROSS)objcopy $(OBJCOPY_STRIP) -S $(LINUX_DIR)$(2)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).elf$(2); \
+ $(CP) $(LINUX_DIR)$(2)/vmlinux $(KERNEL_BUILD_DIR)/vmlinux$(1).debug$(2); \
+ $(foreach k, \
+ $(if $(KERNEL_IMAGES),$(KERNEL_IMAGES),$(filter-out vmlinux dtbs,$(KERNELNAME))), \
+ $(CP) $(LINUX_DIR)$(2)/arch/$(LINUX_KARCH)/boot/$(IMAGES_DIR)/$(k) $(KERNEL_BUILD_DIR)/$(k)$(1)$(2); \
+ ) \
+ }
+endef
+
+define Kernel/CompileImage/Default
+ rm -f $(TARGET_DIR)/init
+ +$(KERNEL_MAKE) $(KERNEL_MAKEOPTS_IMAGE) $(if $(KERNELNAME),$(KERNELNAME),all)
+ $(call Kernel/CopyImage)
+endef
+
+define Kernel/PrepareConfigPerRootfs
+ { \
+ [ ! -d "$(1)" ] || rm -rf $(1); \
+ mkdir $(1) && $(CP) -T $(LINUX_DIR) $(1); \
+ touch $(1)/.config; \
+ }
+endef
+
+ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
+# $1: Custom TARGET_DIR. If omitted TARGET_DIR is used.
+# $2: If defined Generate Per Rootfs Kernel Directory and use it
+# For Separate Initramf with $2 declared, skip kernel compile, it has
+# already been done previously on generic image build
+define Kernel/CompileImage/Initramfs
+ $(call locked,{ \
+ $(if $(2),$(call Kernel/PrepareConfigPerRootfs,$(LINUX_DIR)$(2));) \
+ $(call Kernel/Configure/Initramfs,$(if $(1),$(1),$(TARGET_DIR)),$(LINUX_DIR)$(2)); \
+ $(CP) $(GENERIC_PLATFORM_DIR)/other-files/init $(if $(1),$(1),$(TARGET_DIR))/init; \
+ $(if $(SOURCE_DATE_EPOCH),touch -hcd "@$(SOURCE_DATE_EPOCH)" $(if $(1),$(1),$(TARGET_DIR)) $(if $(1),$(1),$(TARGET_DIR))/init;) \
+ rm -rf $(LINUX_DIR)$(2)/usr/initramfs_data.cpio*; \
+ $(if $(CONFIG_TARGET_ROOTFS_INITRAMFS_SEPARATE), \
+ $(call locked,{ \
+ $(if $(call qstrip,$(CONFIG_EXTERNAL_CPIO)), \
+ $(CP) $(CONFIG_EXTERNAL_CPIO) $(KERNEL_BUILD_DIR)/initrd$(2).cpio;,\
+ ( cd $(if $(1),$(1),$(TARGET_DIR)); find . | LC_ALL=C sort | $(STAGING_DIR_HOST)/bin/cpio --reproducible -o -H newc -R 0:0 > $(KERNEL_BUILD_DIR)/initrd$(2).cpio );) \
+ $(if $(SOURCE_DATE_EPOCH), \
+ touch -hcd "@$(SOURCE_DATE_EPOCH)" $(KERNEL_BUILD_DIR)/initrd$(2).cpio;) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_BZIP2), \
+ $(STAGING_DIR_HOST)/bin/bzip2 -9 -c < $(KERNEL_BUILD_DIR)/initrd$(2).cpio > $(KERNEL_BUILD_DIR)/initrd$(2).cpio.bzip2;) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_GZIP), \
+ $(STAGING_DIR_HOST)/bin/libdeflate-gzip -n -f -S .gzip -12 $(KERNEL_BUILD_DIR)/initrd$(2).cpio;) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZ4), \
+ $(STAGING_DIR_HOST)/bin/lz4c -l -c1 -fz --favor-decSpeed $(KERNEL_BUILD_DIR)/initrd$(2).cpio;) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZMA), \
+ $(STAGING_DIR_HOST)/bin/lzma e -lc1 -lp2 -pb2 $(KERNEL_BUILD_DIR)/initrd$(2).cpio $(KERNEL_BUILD_DIR)/initrd$(2).cpio.lzma;) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_LZO), \
+ $(STAGING_DIR_HOST)/bin/lzop -9 -f $(KERNEL_BUILD_DIR)/initrd$(2).cpio;) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_XZ), \
+ $(STAGING_DIR_HOST)/bin/xz -T$(if $(filter 1,$(NPROC)),2,0) -9 -fz --check=crc32 $(KERNEL_BUILD_DIR)/initrd$(2).cpio;) \
+ $(if $(CONFIG_TARGET_INITRAMFS_COMPRESSION_ZSTD), \
+ $(STAGING_DIR_HOST)/bin/zstd -T0 -f -o $(KERNEL_BUILD_DIR)/initrd$(2).cpio.zstd $(KERNEL_BUILD_DIR)/initrd$(2).cpio;) \
+ }, gen-cpio$(2)); \
+ $(if $(2),,$(KERNEL_MAKE) $(KERNEL_MAKEOPTS_IMAGE) $(if $(KERNELNAME),$(KERNELNAME),all);),\
+ $(KERNEL_MAKE) $(if $(2),-C $(LINUX_DIR)$(2)) $(KERNEL_MAKEOPTS_IMAGE) $(if $(KERNELNAME),$(KERNELNAME),all);) \
+ $(call Kernel/CopyImage,-initramfs,$(2)); \
+ $(if $(2),rm -rf $(LINUX_DIR)$(2);) \
+ }, gen-initramfs$(2));
+endef
+else
+define Kernel/CompileImage/Initramfs
+endef
+endif
+
+define Kernel/Clean/Default
+ rm -f $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)/.configured
+ rm -f $(LINUX_KERNEL)
+ $(_SINGLE)$(MAKE) -C $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION) clean
+endef