usr/include/Makefile

   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-$(CONFIG_CPU_LITTLE_ENDIAN) += linux/byteorder/little_endian.h
  31 header-test- += linux/coda.h
  32 header-test- += linux/elfcore.h
  33 header-test- += linux/errqueue.h
  34 header-test- += linux/fsmap.h
  35 header-test- += linux/hdlc/ioctl.h
  36 header-test- += linux/ivtv.h
  37 header-test- += linux/kexec.h
  38 header-test- += linux/matroxfb.h
  39 header-test- += linux/netfilter_ipv4/ipt_LOG.h
  40 header-test- += linux/netfilter_ipv6/ip6t_LOG.h
  41 header-test- += linux/nfc.h
  42 header-test- += linux/omap3isp.h
  43 header-test- += linux/omapfb.h
  44 header-test- += linux/patchkey.h
  45 header-test- += linux/phonet.h
  46 header-test- += linux/reiserfs_xattr.h
  47 header-test- += linux/scc.h
  48 header-test- += linux/sctp.h
  49 header-test- += linux/signal.h
  50 header-test- += linux/sysctl.h
  51 header-test- += linux/usb/audio.h
  52 header-test- += linux/v4l2-mediabus.h
  53 header-test- += linux/v4l2-subdev.h
  54 header-test- += linux/videodev2.h
  55 header-test- += linux/vm_sockets.h
  56 header-test- += sound/asequencer.h
  57 header-test- += sound/asoc.h
  58 header-test- += sound/asound.h
  59 header-test- += sound/compress_offload.h
  60 header-test- += sound/emu10k1.h
  61 header-test- += sound/sfnt_info.h
  62 header-test- += xen/evtchn.h
  63 header-test- += xen/gntdev.h
  64 header-test- += xen/privcmd.h
  65
  66 # More headers are broken in some architectures
  67
  68 ifeq ($(SRCARCH),arc)
  69 header-test- += linux/bpf_perf_event.h
  70 endif
  71
  72 ifeq ($(SRCARCH),ia64)
  73 header-test- += asm/setup.h
  74 header-test- += asm/sigcontext.h
  75 header-test- += asm/perfmon.h
  76 header-test- += asm/perfmon_default_smpl.h
  77 header-test- += linux/if_bonding.h
  78 endif
  79
  80 ifeq ($(SRCARCH),mips)
  81 header-test- += asm/stat.h
  82 endif
  83
  84 ifeq ($(SRCARCH),powerpc)
  85 header-test- += asm/stat.h
  86 header-test- += linux/bpf_perf_event.h
  87 endif
  88
  89 ifeq ($(SRCARCH),riscv)
  90 header-test- += linux/bpf_perf_event.h
  91 endif
  92
  93 ifeq ($(SRCARCH),sparc)
  94 header-test- += asm/stat.h
  95 header-test- += asm/uctx.h
  96 header-test- += asm/fbio.h
  97 endif
  98
  99 # asm-generic/*.h is used by asm/*.h, and should not be included directly
 100 header-test- += asm-generic/%
 101
 102 # The rest are compile-tested
 103 header-test-y += $(filter-out $(header-test-), \
 104                         $(patsubst $(obj)/%,%, $(wildcard \
 105                         $(addprefix $(obj)/, *.h */*.h */*/*.h */*/*/*.h))))
 106
 107 clean-files += $(filter-out Makefile, $(notdir $(wildcard $(obj)/*)))