1 # SPDX-License-Identifier: GPL-2.0 2 # 3 # Kbuild for top-level directory of the kernel 4 5 ##### 6 # Generate bounds.h 7 8 bounds-file := include/generated/bounds.h 9 10 always := $(bounds-file) 11 targets := kernel/bounds.s 12 13 $(bounds-file): kernel/bounds.s FORCE 14 $(call filechk,offsets,__LINUX_BOUNDS_H__) 15 16 ##### 17 # Generate timeconst.h 18 19 timeconst-file := include/generated/timeconst.h 20 21 targets += $(timeconst-file) 22 23 filechk_gentimeconst = echo $(CONFIG_HZ) | bc -q $< 24 25 $(timeconst-file): kernel/time/timeconst.bc FORCE 26 $(call filechk,gentimeconst) 27 28 ##### 29 # Generate asm-offsets.h 30 31 offsets-file := include/generated/asm-offsets.h 32 33 always += $(offsets-file) 34 targets += arch/$(SRCARCH)/kernel/asm-offsets.s 35 36 arch/$(SRCARCH)/kernel/asm-offsets.s: $(timeconst-file) $(bounds-file) 37 38 $(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s FORCE 39 $(call filechk,offsets,__ASM_OFFSETS_H__) 40 41 ##### 42 # Check for missing system calls 43 44 always += missing-syscalls 45 targets += missing-syscalls 46 47 quiet_cmd_syscalls = CALL $< 48 cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags) 49 50 missing-syscalls: scripts/checksyscalls.sh $(offsets-file) FORCE 51 $(call cmd,syscalls) 52 53 ##### 54 # Check atomic headers are up-to-date 55 56 always += old-atomics 57 targets += old-atomics 58 59 quiet_cmd_atomics = CALL $< 60 cmd_atomics = $(CONFIG_SHELL) $< 61 62 old-atomics: scripts/atomic/check-atomics.sh FORCE 63 $(call cmd,atomics) 64 65 # Keep these three files during make clean 66 no-clean-files := $(bounds-file) $(offsets-file) $(timeconst-file) 67