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Masahiro Yamada ed7ceac157 kbuild: add phony targets to ./Kbuild

missing-syscalls and old-atomics are meant to be phony targets.
Adding them to always-y is odd. (always-y should generate something).

Add a new phony target 'prepare', which depends on all the other.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

2022-09-29 02:00:29 +09:00

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SPDX-License-Identifier: GPL-2.0

Kbuild for top-level directory of the kernel

Prepare global headers and check sanity before descending into sub-directories

---------------------------------------------------------------------------

Generate bounds.h

bounds-file := include/generated/bounds.h

targets := kernel/bounds.s

$(bounds-file): kernel/bounds.s FORCE $(call filechk,offsets,LINUX_BOUNDS_H)

Generate timeconst.h

timeconst-file := include/generated/timeconst.h

filechk_gentimeconst = echo $(CONFIG_HZ) | bc -q $<

$(timeconst-file): kernel/time/timeconst.bc FORCE $(call filechk,gentimeconst)

Generate asm-offsets.h

offsets-file := include/generated/asm-offsets.h

targets += arch/$(SRCARCH)/kernel/asm-offsets.s

arch/$(SRCARCH)/kernel/asm-offsets.s: $(timeconst-file) $(bounds-file)

$(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s FORCE $(call filechk,offsets,ASM_OFFSETS_H)

Check for missing system calls

quiet_cmd_syscalls = CALL $< cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags)

PHONY += missing-syscalls missing-syscalls: scripts/checksyscalls.sh $(offsets-file) $(call cmd,syscalls)

Check atomic headers are up-to-date

quiet_cmd_atomics = CALL $< cmd_atomics = $(CONFIG_SHELL) $<

PHONY += old-atomics old-atomics: scripts/atomic/check-atomics.sh $(call cmd,atomics)

A phony target that depends on all the preparation targets

PHONY += prepare prepare: $(offsets-file) missing-syscalls old-atomics @:

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