Makefile

 1# SPDX-License-Identifier: GPL-2.0
 2
 3# Ensure drm headers are self-contained and pass kernel-doc
 4hdrtest-files := \
 5	$(shell cd $(src) && find * -name '*.h' 2>/dev/null)
 6
 7always-$(CONFIG_DRM_HEADER_TEST) += \
 8	$(patsubst %.h,%.hdrtest, $(hdrtest-files))
 9
10# Include the header twice to detect missing include guard.
11quiet_cmd_hdrtest = HDRTEST $(patsubst %.hdrtest,%.h,$@)
12      cmd_hdrtest = \
13		$(CC) $(c_flags) -fsyntax-only -x c /dev/null -include $< -include $<; \
14		PYTHONDONTWRITEBYTECODE=1 $(PYTHON3) $(KERNELDOC) -none $(if $(CONFIG_WERROR)$(CONFIG_DRM_WERROR),-Werror) $<; \
15		touch $@
16
17$(obj)/%.hdrtest: $(src)/%.h FORCE
18	$(call if_changed_dep,hdrtest)