1 # SPDX-License-Identifier: GPL-2.0
2 #
3 # Kbuild for top-level directory of the kernel
4
5 # Prepare global headers and check sanity befo
6 # --------------------------------------------
7
8 # Generate bounds.h
9
10 bounds-file := include/generated/bounds.h
11
12 targets := kernel/bounds.s
13
14 $(bounds-file): kernel/bounds.s FORCE
15 $(call filechk,offsets,__LINUX_BOUNDS_
16
17 # Generate timeconst.h
18
19 timeconst-file := include/generated/timeconst.
20
21 filechk_gentimeconst = echo $(CONFIG_HZ) | bc
22
23 $(timeconst-file): kernel/time/timeconst.bc FO
24 $(call filechk,gentimeconst)
25
26 # Generate asm-offsets.h
27
28 offsets-file := include/generated/asm-offsets.
29
30 targets += arch/$(SRCARCH)/kernel/asm-offsets.
31
32 arch/$(SRCARCH)/kernel/asm-offsets.s: $(timeco
33
34 $(offsets-file): arch/$(SRCARCH)/kernel/asm-of
35 $(call filechk,offsets,__ASM_OFFSETS_H
36
37 # Check for missing system calls
38
39 quiet_cmd_syscalls = CALL $<
40 cmd_syscalls = $(CONFIG_SHELL) $< $(CC)
41
42 PHONY += missing-syscalls
43 missing-syscalls: scripts/checksyscalls.sh $(o
44 $(call cmd,syscalls)
45
46 # Check the manual modification of atomic head
47
48 quiet_cmd_check_sha1 = CHKSHA1 $<
49 cmd_check_sha1 = \
50 if ! command -v sha1sum >/dev/null; th
51 echo "warning: cannot check th
52 exit 0; \
53 fi; \
54 if [ "$$(sed -n '$$s:// ::p' $<)" != \
55 "$$(sed '$$d' $< | sha1sum | sed
56 echo "error: $< has been modif
57 exit 1; \
58 fi; \
59 touch $@
60
61 atomic-checks += $(addprefix $(obj)/.checked-,
62 atomic-arch-fallback.h \
63 atomic-instrumented.h \
64 atomic-long.h)
65
66 targets += $(atomic-checks)
67 $(atomic-checks): $(obj)/.checked-%: include/l
68 $(call if_changed,check_sha1)
69
70 # A phony target that depends on all the prepa
71
72 PHONY += prepare
73 prepare: $(offsets-file) missing-syscalls $(at
74 @:
75
76 # Ordinary directory descending
77 # --------------------------------------------
78
79 obj-y += init/
80 obj-y += usr/
81 obj-y += arch/$(SRCARCH)/
82 obj-y += $(ARCH_CORE)
83 obj-y += kernel/
84 obj-y += certs/
85 obj-y += mm/
86 obj-y += fs/
87 obj-y += ipc/
88 obj-y += security/
89 obj-y += crypto/
90 obj-$(CONFIG_BLOCK) += block/
91 obj-$(CONFIG_IO_URING) += io_uring/
92 obj-$(CONFIG_RUST) += rust/
93 obj-y += $(ARCH_LIB)
94 obj-y += drivers/
95 obj-y += sound/
96 obj-$(CONFIG_SAMPLES) += samples/
97 obj-$(CONFIG_NET) += net/
98 obj-y += virt/
99 obj-y += $(ARCH_DRIVERS)
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