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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /scripts/Makefile.headersinst | |
parent | Initial commit. (diff) | |
download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip |
Adding upstream version 4.19.249.upstream/4.19.249upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | scripts/Makefile.headersinst | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/scripts/Makefile.headersinst b/scripts/Makefile.headersinst new file mode 100644 index 000000000..d5e131471 --- /dev/null +++ b/scripts/Makefile.headersinst @@ -0,0 +1,130 @@ +# SPDX-License-Identifier: GPL-2.0 +# ========================================================================== +# Installing headers +# +# All headers under include/uapi, include/generated/uapi, +# arch/<arch>/include/uapi and arch/<arch>/include/generated/uapi are +# exported. +# They are preprocessed to remove __KERNEL__ section of the file. +# +# ========================================================================== + +PHONY := __headers +__headers: + +include scripts/Kbuild.include + +srcdir := $(srctree)/$(obj) + +# When make is run under a fakechroot environment, the function +# $(wildcard $(srcdir)/*/.) doesn't only return directories, but also regular +# files. So, we are using a combination of sort/dir/wildcard which works +# with fakechroot. +subdirs := $(patsubst $(srcdir)/%/,%,\ + $(filter-out $(srcdir)/,\ + $(sort $(dir $(wildcard $(srcdir)/*/))))) + +# Recursion +__headers: $(subdirs) + +PHONY += $(subdirs) +$(subdirs): + $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(dst)/$@ + +# Skip header install/check for include/uapi and arch/$(SRCARCH)/include/uapi. +# We have only sub-directories there. +skip-inst := $(if $(filter %/uapi,$(obj)),1) + +ifeq ($(skip-inst),) + +# Kbuild file is optional +kbuild-file := $(srctree)/$(obj)/Kbuild +-include $(kbuild-file) + +installdir := $(INSTALL_HDR_PATH)/$(dst) +gendir := $(objtree)/$(subst include/,include/generated/,$(obj)) +header-files := $(notdir $(wildcard $(srcdir)/*.h)) +header-files += $(notdir $(wildcard $(srcdir)/*.agh)) +header-files := $(filter-out $(no-export-headers), $(header-files)) +genhdr-files := $(notdir $(wildcard $(gendir)/*.h)) +genhdr-files := $(filter-out $(header-files), $(genhdr-files)) + +# files used to track state of install/check +install-file := $(installdir)/.install +check-file := $(installdir)/.check + +# all headers files for this dir +all-files := $(header-files) $(genhdr-files) +output-files := $(addprefix $(installdir)/, $(all-files)) + +ifneq ($(mandatory-y),) +missing := $(filter-out $(all-files),$(mandatory-y)) +ifneq ($(missing),) +$(error Some mandatory headers ($(missing)) are missing in $(obj)) +endif +endif + +# Work out what needs to be removed +oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h)) +unwanted := $(filter-out $(all-files),$(oldheaders)) + +# Prefix unwanted with full paths to $(INSTALL_HDR_PATH) +unwanted-file := $(addprefix $(installdir)/, $(unwanted)) + +printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@)) + +quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\ + file$(if $(word 2, $(all-files)),s)) + cmd_install = \ + $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-files); \ + $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-files); \ + touch $@ + +quiet_cmd_remove = REMOVE $(unwanted) + cmd_remove = rm -f $(unwanted-file) + +quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files) +# Headers list can be pretty long, xargs helps to avoid +# the "Argument list too long" error. + cmd_check = for f in $(all-files); do \ + echo "$(installdir)/$${f}"; done \ + | xargs \ + $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \ + touch $@ + +ifndef HDRCHECK +# Rules for installing headers +__headers: $(install-file) + @: + +targets += $(install-file) +$(install-file): scripts/headers_install.sh \ + $(addprefix $(srcdir)/,$(header-files)) \ + $(addprefix $(gendir)/,$(genhdr-files)) FORCE + $(if $(unwanted),$(call cmd,remove),) + $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@))) + $(call if_changed,install) + +else +__headers: $(check-file) + @: + +targets += $(check-file) +$(check-file): scripts/headers_check.pl $(output-files) FORCE + $(call if_changed,check) + +endif + +cmd_files := $(wildcard \ + $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd)) + +ifneq ($(cmd_files),) + include $(cmd_files) +endif + +endif # skip-inst + +PHONY += FORCE +FORCE: ; + +.PHONY: $(PHONY) |