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d6fc9fcb MY |
1 | # SPDX-License-Identifier: GPL-2.0-only |
2 | ||
3 | # Unlike the kernel space, exported headers are written in standard C. | |
4 | # - Forbid C++ style comments | |
5 | # - Use '__inline__', '__asm__' instead of 'inline', 'asm' | |
6 | # | |
7 | # -std=c90 (equivalent to -ansi) catches the violation of those. | |
8 | # We cannot go as far as adding -Wpedantic since it emits too many warnings. | |
9 | UAPI_CFLAGS := -std=c90 -Wall -Werror=implicit-function-declaration | |
10 | ||
11 | override c_flags = $(UAPI_CFLAGS) -Wp,-MD,$(depfile) -I$(objtree)/usr/include | |
12 | ||
13 | # The following are excluded for now because they fail to build. | |
14 | # | |
15 | # Do not add a new header to the blacklist without legitimate reason. | |
16 | # Please consider to fix the header first. | |
17 | # | |
18 | # Sorted alphabetically. | |
19 | header-test- += asm/ipcbuf.h | |
20 | header-test- += asm/msgbuf.h | |
21 | header-test- += asm/sembuf.h | |
22 | header-test- += asm/shmbuf.h | |
23 | header-test- += asm/signal.h | |
24 | header-test- += asm/ucontext.h | |
25 | header-test- += drm/vmwgfx_drm.h | |
26 | header-test- += linux/am437x-vpfe.h | |
27 | header-test- += linux/android/binder.h | |
28 | header-test- += linux/android/binderfs.h | |
29 | header-test-$(CONFIG_CPU_BIG_ENDIAN) += linux/byteorder/big_endian.h | |
30 | header-test-$(CONFIG_CPU_LITTLE_ENDIAN) += linux/byteorder/little_endian.h | |
31 | header-test- += linux/coda.h | |
32 | header-test- += linux/coda_psdev.h | |
d6fc9fcb MY |
33 | header-test- += linux/elfcore.h |
34 | header-test- += linux/errqueue.h | |
35 | header-test- += linux/fsmap.h | |
36 | header-test- += linux/hdlc/ioctl.h | |
37 | header-test- += linux/ivtv.h | |
38 | header-test- += linux/jffs2.h | |
39 | header-test- += linux/kexec.h | |
40 | header-test- += linux/matroxfb.h | |
d6fc9fcb MY |
41 | header-test- += linux/netfilter_ipv4/ipt_LOG.h |
42 | header-test- += linux/netfilter_ipv6/ip6t_LOG.h | |
43 | header-test- += linux/nfc.h | |
d6fc9fcb MY |
44 | header-test- += linux/omap3isp.h |
45 | header-test- += linux/omapfb.h | |
46 | header-test- += linux/patchkey.h | |
47 | header-test- += linux/phonet.h | |
48 | header-test- += linux/reiserfs_xattr.h | |
49 | header-test- += linux/scc.h | |
50 | header-test- += linux/sctp.h | |
51 | header-test- += linux/signal.h | |
52 | header-test- += linux/sysctl.h | |
53 | header-test- += linux/usb/audio.h | |
54 | header-test- += linux/v4l2-mediabus.h | |
55 | header-test- += linux/v4l2-subdev.h | |
56 | header-test- += linux/videodev2.h | |
57 | header-test- += linux/vm_sockets.h | |
d6fc9fcb MY |
58 | header-test- += scsi/scsi_bsg_fc.h |
59 | header-test- += scsi/scsi_netlink.h | |
60 | header-test- += scsi/scsi_netlink_fc.h | |
61 | header-test- += sound/asequencer.h | |
62 | header-test- += sound/asoc.h | |
63 | header-test- += sound/asound.h | |
64 | header-test- += sound/compress_offload.h | |
65 | header-test- += sound/emu10k1.h | |
66 | header-test- += sound/sfnt_info.h | |
67 | header-test- += sound/sof/eq.h | |
68 | header-test- += sound/sof/fw.h | |
69 | header-test- += sound/sof/header.h | |
70 | header-test- += sound/sof/manifest.h | |
71 | header-test- += sound/sof/trace.h | |
72 | header-test- += xen/evtchn.h | |
73 | header-test- += xen/gntdev.h | |
74 | header-test- += xen/privcmd.h | |
75 | ||
76 | # More headers are broken in some architectures | |
77 | ||
78 | ifeq ($(SRCARCH),arc) | |
79 | header-test- += linux/bpf_perf_event.h | |
80 | endif | |
81 | ||
82 | ifeq ($(SRCARCH),ia64) | |
83 | header-test- += asm/setup.h | |
84 | header-test- += asm/sigcontext.h | |
85 | header-test- += asm/perfmon.h | |
86 | header-test- += asm/perfmon_default_smpl.h | |
87 | header-test- += linux/if_bonding.h | |
88 | endif | |
89 | ||
90 | ifeq ($(SRCARCH),mips) | |
91 | header-test- += asm/stat.h | |
92 | endif | |
93 | ||
94 | ifeq ($(SRCARCH),powerpc) | |
95 | header-test- += asm/stat.h | |
96 | header-test- += linux/bpf_perf_event.h | |
97 | endif | |
98 | ||
99 | ifeq ($(SRCARCH),riscv) | |
100 | header-test- += linux/bpf_perf_event.h | |
101 | endif | |
102 | ||
d6fc9fcb MY |
103 | ifeq ($(SRCARCH),sparc) |
104 | header-test- += asm/stat.h | |
105 | header-test- += asm/uctx.h | |
106 | header-test- += asm/fbio.h | |
d6fc9fcb MY |
107 | endif |
108 | ||
109 | # asm-generic/*.h is used by asm/*.h, and should not be included directly | |
110 | header-test- += asm-generic/% | |
111 | ||
112 | # The rest are compile-tested | |
113 | header-test-y += $(filter-out $(header-test-), \ | |
114 | $(patsubst $(obj)/%,%, $(wildcard \ | |
115 | $(addprefix $(obj)/, *.h */*.h */*/*.h */*/*/*.h)))) | |
116 | ||
117 | # For GNU Make <= 4.2.1, $(wildcard $(obj)/*/) matches to not only directories | |
118 | # but also regular files. Use $(filter %/, ...) just in case. | |
119 | clean-dirs += $(patsubst $(obj)/%/,%,$(filter %/, $(wildcard $(obj)/*/))) |