mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
synced 2024-12-29 17:22:07 +00:00
89a47dd1af
- fix randconfig to generate a sane .config
- rename hostprogs-y / always to hostprogs / always-y, which are
more natual syntax.
- optimize scripts/kallsyms
- fix yes2modconfig and mod2yesconfig
- make multiple directory targets ('make foo/ bar/') work
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Merge tag 'kbuild-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull more Kbuild updates from Masahiro Yamada:
- fix randconfig to generate a sane .config
- rename hostprogs-y / always to hostprogs / always-y, which are more
natual syntax.
- optimize scripts/kallsyms
- fix yes2modconfig and mod2yesconfig
- make multiple directory targets ('make foo/ bar/') work
* tag 'kbuild-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
kbuild: make multiple directory targets work
kconfig: Invalidate all symbols after changing to y or m.
kallsyms: fix type of kallsyms_token_table[]
scripts/kallsyms: change table to store (strcut sym_entry *)
scripts/kallsyms: rename local variables in read_symbol()
kbuild: rename hostprogs-y/always to hostprogs/always-y
kbuild: fix the document to use extra-y for vmlinux.lds
kconfig: fix broken dependency in randconfig-generated .config
89 lines
2.9 KiB
Makefile
89 lines
2.9 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# kbuild file for usr/ - including initramfs image
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#
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# cmd_bzip2, cmd_lzma, cmd_lzo, cmd_lz4 from scripts/Makefile.lib appends the
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# size at the end of the compressed file, which unfortunately does not work
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# with unpack_to_rootfs(). Make size_append no-op.
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override size_append := :
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compress-y := shipped
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compress-$(CONFIG_INITRAMFS_COMPRESSION_GZIP) := gzip
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compress-$(CONFIG_INITRAMFS_COMPRESSION_BZIP2) := bzip2
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compress-$(CONFIG_INITRAMFS_COMPRESSION_LZMA) := lzma
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compress-$(CONFIG_INITRAMFS_COMPRESSION_XZ) := xzmisc
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compress-$(CONFIG_INITRAMFS_COMPRESSION_LZO) := lzo
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compress-$(CONFIG_INITRAMFS_COMPRESSION_LZ4) := lz4
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obj-$(CONFIG_BLK_DEV_INITRD) := initramfs_data.o
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$(obj)/initramfs_data.o: $(obj)/initramfs_inc_data
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ramfs-input := $(strip $(shell echo $(CONFIG_INITRAMFS_SOURCE)))
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cpio-data :=
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# If CONFIG_INITRAMFS_SOURCE is empty, generate a small initramfs with the
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# default contents.
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ifeq ($(ramfs-input),)
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ramfs-input := $(srctree)/$(src)/default_cpio_list
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endif
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ifeq ($(words $(ramfs-input)),1)
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# If CONFIG_INITRAMFS_SOURCE specifies a single file, and it is suffixed with
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# .cpio, use it directly as an initramfs.
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ifneq ($(filter %.cpio,$(ramfs-input)),)
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cpio-data := $(ramfs-input)
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endif
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# If CONFIG_INITRAMFS_SOURCE specifies a single file, and it is suffixed with
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# .cpio.*, use it directly as an initramfs, and avoid double compression.
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ifeq ($(words $(subst .cpio.,$(space),$(ramfs-input))),2)
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cpio-data := $(ramfs-input)
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compress-y := shipped
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endif
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endif
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# For other cases, generate the initramfs cpio archive based on the contents
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# specified by CONFIG_INITRAMFS_SOURCE.
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ifeq ($(cpio-data),)
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cpio-data := $(obj)/initramfs_data.cpio
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hostprogs := gen_init_cpio
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# .initramfs_data.cpio.d is used to identify all files included
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# in initramfs and to detect if any files are added/removed.
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# Removed files are identified by directory timestamp being updated
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# The dependency list is generated by gen_initramfs.sh -l
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-include $(obj)/.initramfs_data.cpio.d
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# do not try to update files included in initramfs
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$(deps_initramfs): ;
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quiet_cmd_initfs = GEN $@
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cmd_initfs = \
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$(CONFIG_SHELL) $< -o $@ -l $(obj)/.initramfs_data.cpio.d \
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$(if $(CONFIG_INITRAMFS_ROOT_UID), -u $(CONFIG_INITRAMFS_ROOT_UID)) \
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$(if $(CONFIG_INITRAMFS_ROOT_GID), -g $(CONFIG_INITRAMFS_ROOT_GID)) \
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$(ramfs-input)
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# We rebuild initramfs_data.cpio if:
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# 1) Any included file is newer than initramfs_data.cpio
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# 2) There are changes in which files are included (added or deleted)
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# 3) If gen_init_cpio are newer than initramfs_data.cpio
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# 4) Arguments to gen_initramfs.sh changes
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$(obj)/initramfs_data.cpio: $(src)/gen_initramfs.sh $(obj)/gen_init_cpio $(deps_initramfs) FORCE
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$(call if_changed,initfs)
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endif
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$(obj)/initramfs_inc_data: $(cpio-data) FORCE
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$(call if_changed,$(compress-y))
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targets += initramfs_data.cpio initramfs_inc_data
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subdir-$(CONFIG_UAPI_HEADER_TEST) += include
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