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Commit | Line | Data |
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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
86feeaa8 SR |
2 | # |
3 | # Kbuild for top-level directory of the kernel | |
86feeaa8 | 4 | |
ed7ceac1 MY |
5 | # Prepare global headers and check sanity before descending into sub-directories |
6 | # --------------------------------------------------------------------------- | |
7 | ||
01d509a4 | 8 | # Generate bounds.h |
39664e2f MY |
9 | |
10 | bounds-file := include/generated/bounds.h | |
11 | ||
8a58e162 | 12 | targets := kernel/bounds.s |
39664e2f | 13 | |
11fda148 | 14 | $(bounds-file): kernel/bounds.s FORCE |
70a4fd6c | 15 | $(call filechk,offsets,__LINUX_BOUNDS_H__) |
1cdf25d7 | 16 | |
01d509a4 | 17 | # Generate timeconst.h |
0a227985 NMG |
18 | |
19 | timeconst-file := include/generated/timeconst.h | |
20 | ||
ba97df45 | 21 | filechk_gentimeconst = echo $(CONFIG_HZ) | bc -q $< |
0a227985 | 22 | |
11fda148 | 23 | $(timeconst-file): kernel/time/timeconst.bc FORCE |
0a227985 NMG |
24 | $(call filechk,gentimeconst) |
25 | ||
01d509a4 | 26 | # Generate asm-offsets.h |
86feeaa8 | 27 | |
559df2e0 | 28 | offsets-file := include/generated/asm-offsets.h |
86feeaa8 | 29 | |
6752ed90 | 30 | targets += arch/$(SRCARCH)/kernel/asm-offsets.s |
1cdf25d7 | 31 | |
11fda148 | 32 | arch/$(SRCARCH)/kernel/asm-offsets.s: $(timeconst-file) $(bounds-file) |
86feeaa8 | 33 | |
11fda148 | 34 | $(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s FORCE |
70a4fd6c | 35 | $(call filechk,offsets,__ASM_OFFSETS_H__) |
86feeaa8 | 36 | |
01d509a4 | 37 | # Check for missing system calls |
c53aeca0 SR |
38 | |
39 | quiet_cmd_syscalls = CALL $< | |
44656fa0 | 40 | cmd_syscalls = $(CONFIG_SHELL) $< $(CC) $(c_flags) $(missing_syscalls_flags) |
c53aeca0 | 41 | |
ed7ceac1 MY |
42 | PHONY += missing-syscalls |
43 | missing-syscalls: scripts/checksyscalls.sh $(offsets-file) | |
c53aeca0 | 44 | $(call cmd,syscalls) |
1cdf25d7 | 45 | |
b10fdeea MY |
46 | # Check the manual modification of atomic headers |
47 | ||
48 | quiet_cmd_check_sha1 = CHKSHA1 $< | |
49 | cmd_check_sha1 = \ | |
50 | if ! command -v sha1sum >/dev/null; then \ | |
51 | echo "warning: cannot check the header due to sha1sum missing"; \ | |
52 | exit 0; \ | |
53 | fi; \ | |
54 | if [ "$$(sed -n '$$s:// ::p' $<)" != \ | |
55 | "$$(sed '$$d' $< | sha1sum | sed 's/ .*//')" ]; then \ | |
56 | echo "error: $< has been modified." >&2; \ | |
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/linux/atomic/% FORCE | |
68 | $(call if_changed,check_sha1) | |
ed7ceac1 MY |
69 | |
70 | # A phony target that depends on all the preparation targets | |
71 | ||
72 | PHONY += prepare | |
b10fdeea | 73 | prepare: $(offsets-file) missing-syscalls $(atomic-checks) |
ed7ceac1 | 74 | @: |
5750121a MY |
75 | |
76 | # Ordinary directory descending | |
77 | # --------------------------------------------------------------------------- | |
78 | ||
79 | obj-y += init/ | |
80 | obj-y += usr/ | |
81 | obj-y += arch/$(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-$(CONFIG_IO_URING) += io_uring/ | |
8afc66e8 | 92 | obj-$(CONFIG_RUST) += rust/ |
5750121a MY |
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) |