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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) |