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1# ==========================================================================
2# Installing headers
3#
4# header-y - list files to be installed. They are preprocessed
5# to remove __KERNEL__ section of the file
6# genhdr-y - Same as header-y but in a generated directory
7#
8# ==========================================================================
9
10# generated header directory
11gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
12
13kbuild-file := $(srctree)/$(obj)/Kbuild
14include $(kbuild-file)
15
16# called may set destination dir (when installing to asm/)
17_dst := $(if $(destination-y),$(destination-y),$(if $(dst),$(dst),$(obj)))
18
19old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild
20ifneq ($(wildcard $(old-kbuild-file)),)
21include $(old-kbuild-file)
22endif
23
24include scripts/Kbuild.include
25
26installdir := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
27
28header-y := $(sort $(header-y))
29subdirs := $(patsubst %/,%,$(filter %/, $(header-y)))
30header-y := $(filter-out %/, $(header-y))
31
32# files used to track state of install/check
33install-file := $(installdir)/.install
34check-file := $(installdir)/.check
35
36# generic-y list all files an architecture uses from asm-generic
37# Use this to build a list of headers which require a wrapper
38wrapper-files := $(filter $(header-y), $(generic-y))
39
40srcdir := $(srctree)/$(obj)
41gendir := $(objtree)/$(gen)
42
43oldsrcdir := $(srctree)/$(subst /uapi,,$(obj))
44
45# all headers files for this dir
46header-y := $(filter-out $(generic-y), $(header-y))
47all-files := $(header-y) $(genhdr-y) $(wrapper-files)
48output-files := $(addprefix $(installdir)/, $(all-files))
49
50input-files1 := $(foreach hdr, $(header-y), \
51 $(if $(wildcard $(srcdir)/$(hdr)), \
52 $(wildcard $(srcdir)/$(hdr))) \
53 )
54input-files1-name := $(notdir $(input-files1))
55input-files2 := $(foreach hdr, $(header-y), \
56 $(if $(wildcard $(srcdir)/$(hdr)),, \
57 $(if $(wildcard $(oldsrcdir)/$(hdr)), \
58 $(wildcard $(oldsrcdir)/$(hdr)), \
59 $(error Missing UAPI file $(srcdir)/$(hdr))) \
60 ))
61input-files2-name := $(notdir $(input-files2))
62input-files3 := $(foreach hdr, $(genhdr-y), \
63 $(if $(wildcard $(gendir)/$(hdr)), \
64 $(wildcard $(gendir)/$(hdr)), \
65 $(error Missing generated UAPI file $(gendir)/$(hdr)) \
66 ))
67input-files3-name := $(notdir $(input-files3))
68
69# Work out what needs to be removed
70oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
71unwanted := $(filter-out $(all-files),$(oldheaders))
72
73# Prefix unwanted with full paths to $(INSTALL_HDR_PATH)
74unwanted-file := $(addprefix $(installdir)/, $(unwanted))
75
76printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
77
78quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
79 file$(if $(word 2, $(all-files)),s))
80 cmd_install = \
81 $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(input-files1-name); \
82 $(CONFIG_SHELL) $< $(installdir) $(oldsrcdir) $(input-files2-name); \
83 $(CONFIG_SHELL) $< $(installdir) $(gendir) $(input-files3-name); \
84 for F in $(wrapper-files); do \
85 echo "\#include <asm-generic/$$F>" > $(installdir)/$$F; \
86 done; \
87 touch $@
88
89quiet_cmd_remove = REMOVE $(unwanted)
90 cmd_remove = rm -f $(unwanted-file)
91
92quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files)
93# Headers list can be pretty long, xargs helps to avoid
94# the "Argument list too long" error.
95 cmd_check = for f in $(all-files); do \
96 echo "$(installdir)/$${f}"; done \
97 | xargs \
98 $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \
99 touch $@
100
101PHONY += __headersinst __headerscheck
102
103ifndef HDRCHECK
104# Rules for installing headers
105__headersinst: $(subdirs) $(install-file)
106 @:
107
108targets += $(install-file)
109$(install-file): scripts/headers_install.sh $(input-files1) $(input-files2) $(input-files3) FORCE
110 $(if $(unwanted),$(call cmd,remove),)
111 $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@)))
112 $(call if_changed,install)
113
114else
115__headerscheck: $(subdirs) $(check-file)
116 @:
117
118targets += $(check-file)
119$(check-file): scripts/headers_check.pl $(output-files) FORCE
120 $(call if_changed,check)
121
122endif
123
124# Recursion
125.PHONY: $(subdirs)
126$(subdirs):
127 $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
128
129targets := $(wildcard $(sort $(targets)))
130cmd_files := $(wildcard \
131 $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
132
133ifneq ($(cmd_files),)
134 include $(cmd_files)
135endif
136
137.PHONY: $(PHONY)
138PHONY += FORCE
139FORCE: ;
1# ==========================================================================
2# Installing headers
3#
4# header-y - list files to be installed. They are preprocessed
5# to remove __KERNEL__ section of the file
6# genhdr-y - Same as header-y but in a generated directory
7#
8# ==========================================================================
9
10# generated header directory
11gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
12
13kbuild-file := $(srctree)/$(obj)/Kbuild
14include $(kbuild-file)
15
16# called may set destination dir (when installing to asm/)
17_dst := $(if $(destination-y),$(destination-y),$(if $(dst),$(dst),$(obj)))
18
19old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild
20ifneq ($(wildcard $(old-kbuild-file)),)
21include $(old-kbuild-file)
22endif
23
24include scripts/Kbuild.include
25
26installdir := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst))
27
28header-y := $(sort $(header-y))
29subdirs := $(patsubst %/,%,$(filter %/, $(header-y)))
30header-y := $(filter-out %/, $(header-y))
31
32# files used to track state of install/check
33install-file := $(installdir)/.install
34check-file := $(installdir)/.check
35
36# generic-y list all files an architecture uses from asm-generic
37# Use this to build a list of headers which require a wrapper
38wrapper-files := $(filter $(header-y), $(generic-y))
39
40srcdir := $(srctree)/$(obj)
41gendir := $(objtree)/$(gen)
42
43oldsrcdir := $(srctree)/$(subst /uapi,,$(obj))
44
45# all headers files for this dir
46header-y := $(filter-out $(generic-y), $(header-y))
47all-files := $(header-y) $(genhdr-y) $(wrapper-files)
48output-files := $(addprefix $(installdir)/, $(all-files))
49
50input-files1 := $(foreach hdr, $(header-y), \
51 $(if $(wildcard $(srcdir)/$(hdr)), \
52 $(wildcard $(srcdir)/$(hdr))) \
53 )
54input-files1-name := $(notdir $(input-files1))
55input-files2 := $(foreach hdr, $(header-y), \
56 $(if $(wildcard $(srcdir)/$(hdr)),, \
57 $(if $(wildcard $(oldsrcdir)/$(hdr)), \
58 $(wildcard $(oldsrcdir)/$(hdr)), \
59 $(error Missing UAPI file $(srcdir)/$(hdr))) \
60 ))
61input-files2-name := $(notdir $(input-files2))
62input-files3 := $(foreach hdr, $(genhdr-y), \
63 $(if $(wildcard $(gendir)/$(hdr)), \
64 $(wildcard $(gendir)/$(hdr)), \
65 $(error Missing generated UAPI file $(gendir)/$(hdr)) \
66 ))
67input-files3-name := $(notdir $(input-files3))
68
69# Work out what needs to be removed
70oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
71unwanted := $(filter-out $(all-files),$(oldheaders))
72
73# Prefix unwanted with full paths to $(INSTALL_HDR_PATH)
74unwanted-file := $(addprefix $(installdir)/, $(unwanted))
75
76printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
77
78quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
79 file$(if $(word 2, $(all-files)),s))
80 cmd_install = \
81 $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(input-files1-name); \
82 $(CONFIG_SHELL) $< $(installdir) $(oldsrcdir) $(input-files2-name); \
83 $(CONFIG_SHELL) $< $(installdir) $(gendir) $(input-files3-name); \
84 for F in $(wrapper-files); do \
85 echo "\#include <asm-generic/$$F>" > $(installdir)/$$F; \
86 done; \
87 touch $@
88
89quiet_cmd_remove = REMOVE $(unwanted)
90 cmd_remove = rm -f $(unwanted-file)
91
92quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files)
93# Headers list can be pretty long, xargs helps to avoid
94# the "Argument list too long" error.
95 cmd_check = for f in $(all-files); do \
96 echo "$(installdir)/$${f}"; done \
97 | xargs \
98 $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \
99 touch $@
100
101PHONY += __headersinst __headerscheck
102
103ifndef HDRCHECK
104# Rules for installing headers
105__headersinst: $(subdirs) $(install-file)
106 @:
107
108targets += $(install-file)
109$(install-file): scripts/headers_install.sh $(input-files1) $(input-files2) $(input-files3) FORCE
110 $(if $(unwanted),$(call cmd,remove),)
111 $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@)))
112 $(call if_changed,install)
113
114else
115__headerscheck: $(subdirs) $(check-file)
116 @:
117
118targets += $(check-file)
119$(check-file): scripts/headers_check.pl $(output-files) FORCE
120 $(call if_changed,check)
121
122endif
123
124# Recursion
125hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
126.PHONY: $(subdirs)
127$(subdirs):
128 $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
129
130targets := $(wildcard $(sort $(targets)))
131cmd_files := $(wildcard \
132 $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
133
134ifneq ($(cmd_files),)
135 include $(cmd_files)
136endif
137
138.PHONY: $(PHONY)
139PHONY += FORCE
140FORCE: ;