cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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Makefile.headersinst (2950B)

      1# SPDX-License-Identifier: GPL-2.0
      2# ==========================================================================
      3# Installing headers
      4#
      5# All headers under include/uapi, include/generated/uapi,
      6# arch/<arch>/include/uapi and arch/<arch>/include/generated/uapi are
      7# exported.
      8# They are preprocessed to remove __KERNEL__ section of the file.
      9#
     10# ==========================================================================
     11
     12PHONY := __headers
     13__headers:
     14
     15include $(srctree)/scripts/Kbuild.include
     16
     17src := $(srctree)/$(obj)
     18gen := $(objtree)/$(subst include/,include/generated/,$(obj))
     19dst := usr/include
     20
     21-include $(src)/Kbuild
     22
     23# $(filter %/, ...) is a workaround for GNU Make <= 4.2.1, where
     24# $(wildcard $(src)/*/) contains not only directories but also regular files.
     25src-subdirs := $(patsubst $(src)/%/,%,$(filter %/, $(wildcard $(src)/*/)))
     26gen-subdirs := $(patsubst $(gen)/%/,%,$(filter %/, $(wildcard $(gen)/*/)))
     27all-subdirs := $(sort $(src-subdirs) $(gen-subdirs))
     28
     29src-headers := $(if $(src-subdirs), $(shell cd $(src) && find $(src-subdirs) -name '*.h'))
     30src-headers := $(filter-out $(no-export-headers), $(src-headers))
     31gen-headers := $(if $(gen-subdirs), $(shell cd $(gen) && find $(gen-subdirs) -name '*.h'))
     32gen-headers := $(filter-out $(no-export-headers), $(gen-headers))
     33
     34# If the same header is exported from source and generated directories,
     35# the former takes precedence, but this should be warned.
     36duplicated := $(filter $(gen-headers), $(src-headers))
     37$(if $(duplicated), $(warning duplicated header export: $(duplicated)))
     38
     39gen-headers := $(filter-out $(duplicated), $(gen-headers))
     40
     41# Add dst path prefix
     42all-subdirs := $(addprefix $(dst)/, $(all-subdirs))
     43src-headers := $(addprefix $(dst)/, $(src-headers))
     44gen-headers := $(addprefix $(dst)/, $(gen-headers))
     45all-headers := $(src-headers) $(gen-headers)
     46
     47# Work out what needs to be removed
     48old-subdirs := $(wildcard $(all-subdirs))
     49old-headers := $(if $(old-subdirs),$(shell find $(old-subdirs) -name '*.h'))
     50unwanted    := $(filter-out $(all-headers), $(old-headers))
     51
     52# Create directories
     53existing-dirs := $(sort $(dir $(old-headers)))
     54wanted-dirs   := $(sort $(dir $(all-headers)))
     55new-dirs      := $(filter-out $(existing-dirs), $(wanted-dirs))
     56$(if $(new-dirs), $(shell mkdir -p $(new-dirs)))
     57
     58# Rules
     59quiet_cmd_install = HDRINST $@
     60      cmd_install = $(CONFIG_SHELL) $(srctree)/scripts/headers_install.sh $< $@
     61
     62$(src-headers): $(dst)/%.h: $(src)/%.h $(srctree)/scripts/headers_install.sh FORCE
     63	$(call if_changed,install)
     64
     65$(gen-headers): $(dst)/%.h: $(gen)/%.h $(srctree)/scripts/headers_install.sh FORCE
     66	$(call if_changed,install)
     67
     68quiet_cmd_remove = REMOVE  $(unwanted)
     69      cmd_remove = rm -f $(unwanted)
     70
     71__headers: $(all-headers)
     72ifneq ($(unwanted),)
     73	$(call cmd,remove)
     74endif
     75	@:
     76
     77existing-headers := $(filter $(old-headers), $(all-headers))
     78
     79-include $(foreach f,$(existing-headers),$(dir $(f)).$(notdir $(f)).cmd)
     80
     81PHONY += FORCE
     82FORCE:
     83
     84.PHONY: $(PHONY)