1# SPDX-License-Identifier: GPL-2.0 2# 3# Kbuild for top-level directory of the kernel 4 5##### 6# Generate bounds.h 7 8bounds-file := include/generated/bounds.h 9 10always-y := $(bounds-file) 11targets := kernel/bounds.s 12 13$(bounds-file): kernel/bounds.s FORCE 14 $(call filechk,offsets,__LINUX_BOUNDS_H__) 15 16##### 17# Generate timeconst.h 18 19timeconst-file := include/generated/timeconst.h 20 21filechk_gentimeconst = echo $(CONFIG_HZ) | bc -q $< 22 23$(timeconst-file): kernel/time/timeconst.bc FORCE 24 $(call filechk,gentimeconst) 25 26##### 27# Generate asm-offsets.h 28 29offsets-file := include/generated/asm-offsets.h 30 31always-y += $(offsets-file) 32targets += arch/$(SRCARCH)/kernel/asm-offsets.s 33 34arch/$(SRCARCH)/kernel/asm-offsets.s: $(timeconst-file) $(bounds-file) 35 36$(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s FORCE 37 $(call filechk,offsets,__ASM_OFFSETS_H__) 38 39##### 40# Check for missing system calls 41 42always-y += missing-syscalls 43 44quiet_cmd_syscalls = CALL $< 45 cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags) 46 47missing-syscalls: scripts/checksyscalls.sh $(offsets-file) FORCE 48 $(call cmd,syscalls) 49 50##### 51# Check atomic headers are up-to-date 52 53always-y += old-atomics 54 55quiet_cmd_atomics = CALL $< 56 cmd_atomics = $(CONFIG_SHELL) $< 57 58old-atomics: scripts/atomic/check-atomics.sh FORCE 59 $(call cmd,atomics) 60