mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-02-15 05:03:01 -05:00
6059b880a9
The UAPI headers should be self-contained. That means they should not use other headers from libc. Currently this is not enforced and various dependencies have crept in. Add a check to make sure no new ones are added. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Link: https://patch.msgid.link/20251223-uapi-nostdinc-v1-1-d91545d794f7@linutronix.de Signed-off-by: Nathan Chancellor <nathan@kernel.org>
164 lines
5.0 KiB
Makefile
164 lines
5.0 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0-only
|
|
|
|
# Unlike the kernel space, exported headers are written in standard C.
|
|
# - Forbid C++ style comments
|
|
# - Use '__inline__', '__asm__' instead of 'inline', 'asm'
|
|
#
|
|
# -std=c90 (equivalent to -ansi) catches the violation of those.
|
|
# We cannot go as far as adding -Wpedantic since it emits too many warnings.
|
|
UAPI_CFLAGS := -std=c90 -Werror=implicit-function-declaration
|
|
|
|
override c_flags = $(KBUILD_USERCFLAGS) $(UAPI_CFLAGS) -Wp,-MMD,$(depfile) -I $(obj) -I $(srctree)/usr/dummy-include
|
|
|
|
# The following are excluded for now because they fail to build.
|
|
#
|
|
# Do not add a new header to the blacklist without legitimate reason.
|
|
# Please consider to fix the header first.
|
|
#
|
|
# Sorted alphabetically.
|
|
no-header-test += asm/ucontext.h
|
|
no-header-test += drm/vmwgfx_drm.h
|
|
no-header-test += linux/am437x-vpfe.h
|
|
no-header-test += linux/coda.h
|
|
no-header-test += linux/cyclades.h
|
|
no-header-test += linux/errqueue.h
|
|
no-header-test += linux/hdlc/ioctl.h
|
|
no-header-test += linux/ivtv.h
|
|
no-header-test += linux/matroxfb.h
|
|
no-header-test += linux/omap3isp.h
|
|
no-header-test += linux/omapfb.h
|
|
no-header-test += linux/patchkey.h
|
|
no-header-test += linux/phonet.h
|
|
no-header-test += linux/sctp.h
|
|
no-header-test += linux/sysctl.h
|
|
no-header-test += linux/usb/audio.h
|
|
no-header-test += linux/v4l2-mediabus.h
|
|
no-header-test += linux/v4l2-subdev.h
|
|
no-header-test += linux/videodev2.h
|
|
no-header-test += linux/vm_sockets.h
|
|
no-header-test += sound/asequencer.h
|
|
no-header-test += sound/asoc.h
|
|
no-header-test += sound/asound.h
|
|
no-header-test += sound/compress_offload.h
|
|
no-header-test += sound/emu10k1.h
|
|
no-header-test += sound/sfnt_info.h
|
|
no-header-test += xen/evtchn.h
|
|
no-header-test += xen/gntdev.h
|
|
no-header-test += xen/privcmd.h
|
|
|
|
# More headers are broken in some architectures
|
|
|
|
ifeq ($(SRCARCH),arc)
|
|
no-header-test += linux/bpf_perf_event.h
|
|
endif
|
|
|
|
ifeq ($(SRCARCH),openrisc)
|
|
no-header-test += linux/bpf_perf_event.h
|
|
endif
|
|
|
|
ifeq ($(SRCARCH),powerpc)
|
|
no-header-test += linux/bpf_perf_event.h
|
|
endif
|
|
|
|
ifeq ($(SRCARCH),sparc)
|
|
no-header-test += asm/uctx.h
|
|
no-header-test += asm/fbio.h
|
|
endif
|
|
|
|
# asm-generic/*.h is used by asm/*.h, and should not be included directly
|
|
no-header-test += asm-generic/%
|
|
|
|
# The following are using libc header and types.
|
|
#
|
|
# Do not add a new header to the list without legitimate reason.
|
|
# Please consider to fix the header first.
|
|
#
|
|
# Sorted alphabetically.
|
|
uses-libc += linux/a.out.h
|
|
uses-libc += linux/atmbr2684.h
|
|
uses-libc += linux/auto_dev-ioctl.h
|
|
uses-libc += linux/auto_fs.h
|
|
uses-libc += linux/auto_fs4.h
|
|
uses-libc += linux/btrfs_tree.h
|
|
uses-libc += linux/cec-funcs.h
|
|
uses-libc += linux/cec.h
|
|
uses-libc += linux/dvb/dmx.h
|
|
uses-libc += linux/dvb/video.h
|
|
uses-libc += linux/ethtool.h
|
|
uses-libc += linux/ethtool_netlink.h
|
|
uses-libc += linux/fuse.h
|
|
uses-libc += linux/gsmmux.h
|
|
uses-libc += linux/icmp.h
|
|
uses-libc += linux/idxd.h
|
|
uses-libc += linux/if.h
|
|
uses-libc += linux/if_arp.h
|
|
uses-libc += linux/if_bonding.h
|
|
uses-libc += linux/if_pppox.h
|
|
uses-libc += linux/if_tunnel.h
|
|
uses-libc += linux/input.h
|
|
uses-libc += linux/ip6_tunnel.h
|
|
uses-libc += linux/joystick.h
|
|
uses-libc += linux/llc.h
|
|
uses-libc += linux/mctp.h
|
|
uses-libc += linux/mdio.h
|
|
uses-libc += linux/mii.h
|
|
uses-libc += linux/mptcp.h
|
|
uses-libc += linux/netdevice.h
|
|
uses-libc += linux/netfilter/xt_RATEEST.h
|
|
uses-libc += linux/netfilter/xt_hashlimit.h
|
|
uses-libc += linux/netfilter/xt_physdev.h
|
|
uses-libc += linux/netfilter/xt_rateest.h
|
|
uses-libc += linux/netfilter_arp/arp_tables.h
|
|
uses-libc += linux/netfilter_arp/arpt_mangle.h
|
|
uses-libc += linux/netfilter_bridge.h
|
|
uses-libc += linux/netfilter_bridge/ebtables.h
|
|
uses-libc += linux/netfilter_ipv4.h
|
|
uses-libc += linux/netfilter_ipv4/ip_tables.h
|
|
uses-libc += linux/netfilter_ipv6.h
|
|
uses-libc += linux/netfilter_ipv6/ip6_tables.h
|
|
uses-libc += linux/route.h
|
|
uses-libc += linux/shm.h
|
|
uses-libc += linux/soundcard.h
|
|
uses-libc += linux/string.h
|
|
uses-libc += linux/tipc_config.h
|
|
uses-libc += linux/uhid.h
|
|
uses-libc += linux/uinput.h
|
|
uses-libc += linux/vhost.h
|
|
uses-libc += linux/vhost_types.h
|
|
uses-libc += linux/virtio_ring.h
|
|
uses-libc += linux/wireless.h
|
|
uses-libc += regulator/regulator.h
|
|
uses-libc += scsi/fc/fc_els.h
|
|
|
|
ifeq ($(SRCARCH),hexagon)
|
|
uses-libc += asm/sigcontext.h
|
|
endif
|
|
|
|
ifeq ($(SRCARCH),nios2)
|
|
uses-libc += asm/ptrace.h
|
|
uses-libc += linux/bpf_perf_event.h
|
|
endif
|
|
|
|
ifeq ($(SRCARCH),s390)
|
|
uses-libc += asm/chpid.h
|
|
uses-libc += asm/chsc.h
|
|
endif
|
|
|
|
always-y := $(patsubst $(obj)/%.h,%.hdrtest, $(shell find $(obj) -name '*.h' 2>/dev/null))
|
|
|
|
# Include the header twice to detect missing include guard.
|
|
quiet_cmd_hdrtest = HDRTEST $<
|
|
cmd_hdrtest = \
|
|
$(CC) $(c_flags) -fsyntax-only -Werror -x c /dev/null \
|
|
$(if $(filter-out $(uses-libc), $*.h), -nostdinc) \
|
|
$(if $(filter-out $(no-header-test), $*.h), -include $< -include $<); \
|
|
$(PERL) $(src)/headers_check.pl $(obj) $<; \
|
|
touch $@
|
|
|
|
$(obj)/%.hdrtest: $(obj)/%.h $(src)/headers_check.pl FORCE
|
|
$(call if_changed_dep,hdrtest)
|
|
|
|
# Since GNU Make 4.3, $(patsubst $(obj)/%/,%,$(wildcard $(obj)/*/)) works.
|
|
# To support older Make versions, use a somewhat tedious way.
|
|
clean-files += $(filter-out Makefile headers_check.pl, $(notdir $(wildcard $(obj)/*)))
|