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Commit | Line | Data |
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8d730cfb DW |
1 | # ========================================================================== |
2 | # Installing headers | |
3 | # | |
fcc8487d | 4 | # All headers under include/uapi, include/generated/uapi, |
61562f98 | 5 | # arch/<arch>/include/uapi and arch/<arch>/include/generated/uapi are |
fcc8487d ND |
6 | # exported. |
7 | # They are preprocessed to remove __KERNEL__ section of the file. | |
8d730cfb DW |
8 | # |
9 | # ========================================================================== | |
10 | ||
05d8cba4 MY |
11 | PHONY := __headers |
12 | __headers: | |
13 | ||
14 | include scripts/Kbuild.include | |
15 | ||
16 | srcdir := $(srctree)/$(obj) | |
2f263d14 RG |
17 | |
18 | # When make is run under a fakechroot environment, the function | |
19 | # $(wildcard $(srcdir)/*/.) doesn't only return directories, but also regular | |
20 | # files. So, we are using a combination of sort/dir/wildcard which works | |
21 | # with fakechroot. | |
22 | subdirs := $(patsubst $(srcdir)/%/,%,\ | |
23 | $(filter-out $(srcdir)/,\ | |
24 | $(sort $(dir $(wildcard $(srcdir)/*/))))) | |
25 | ||
05d8cba4 MY |
26 | # caller may set destination dir (when installing to asm/) |
27 | _dst := $(if $(dst),$(dst),$(obj)) | |
28 | ||
29 | # Recursion | |
30 | __headers: $(subdirs) | |
31 | ||
32 | .PHONY: $(subdirs) | |
33 | $(subdirs): | |
34 | $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@ | |
35 | ||
36 | # Skip header install/check for include/uapi and arch/$(hdr-arch)/include/uapi. | |
37 | # We have only sub-directories there. | |
38 | skip-inst := $(if $(filter %/uapi,$(obj)),1) | |
39 | ||
40 | ifeq ($(skip-inst),) | |
41 | ||
cb97914b PA |
42 | # generated header directory |
43 | gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj))) | |
44 | ||
fcc8487d | 45 | # Kbuild file is optional |
283039fb | 46 | kbuild-file := $(srctree)/$(obj)/Kbuild |
fcc8487d | 47 | -include $(kbuild-file) |
8d730cfb | 48 | |
10b63956 DH |
49 | old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild |
50 | ifneq ($(wildcard $(old-kbuild-file)),) | |
51 | include $(old-kbuild-file) | |
52 | endif | |
c7bb349e | 53 | |
10b63956 | 54 | installdir := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst)) |
8d730cfb | 55 | |
fcc8487d | 56 | gendir := $(objtree)/$(gen) |
fcc8487d ND |
57 | header-files := $(notdir $(wildcard $(srcdir)/*.h)) |
58 | header-files += $(notdir $(wildcard $(srcdir)/*.agh)) | |
59 | header-files := $(filter-out $(no-export-headers), $(header-files)) | |
60 | genhdr-files := $(notdir $(wildcard $(gendir)/*.h)) | |
61 | genhdr-files := $(filter-out $(header-files), $(genhdr-files)) | |
de789125 | 62 | |
7712401a | 63 | # files used to track state of install/check |
10b63956 DH |
64 | install-file := $(installdir)/.install |
65 | check-file := $(installdir)/.check | |
de789125 | 66 | |
d8ecc5cd SR |
67 | # generic-y list all files an architecture uses from asm-generic |
68 | # Use this to build a list of headers which require a wrapper | |
fcc8487d ND |
69 | generic-files := $(notdir $(wildcard $(srctree)/include/uapi/asm-generic/*.h)) |
70 | wrapper-files := $(filter $(generic-files), $(generic-y)) | |
71 | wrapper-files := $(filter-out $(header-files), $(wrapper-files)) | |
10b63956 | 72 | |
7712401a | 73 | # all headers files for this dir |
fcc8487d | 74 | all-files := $(header-files) $(genhdr-files) $(wrapper-files) |
10b63956 DH |
75 | output-files := $(addprefix $(installdir)/, $(all-files)) |
76 | ||
fcc8487d ND |
77 | ifneq ($(mandatory-y),) |
78 | missing := $(filter-out $(all-files),$(mandatory-y)) | |
79 | ifneq ($(missing),) | |
80 | $(error Some mandatory headers ($(missing)) are missing in $(obj)) | |
81 | endif | |
82 | endif | |
de789125 | 83 | |
7712401a | 84 | # Work out what needs to be removed |
10b63956 | 85 | oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h)) |
7712401a | 86 | unwanted := $(filter-out $(all-files),$(oldheaders)) |
8d730cfb | 87 | |
7712401a | 88 | # Prefix unwanted with full paths to $(INSTALL_HDR_PATH) |
10b63956 | 89 | unwanted-file := $(addprefix $(installdir)/, $(unwanted)) |
de789125 | 90 | |
7712401a | 91 | printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@)) |
68475359 | 92 | |
7712401a SR |
93 | quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\ |
94 | file$(if $(word 2, $(all-files)),s)) | |
db1bec4f | 95 | cmd_install = \ |
fcc8487d ND |
96 | $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-files); \ |
97 | $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-files); \ | |
d8ecc5cd | 98 | for F in $(wrapper-files); do \ |
10b63956 | 99 | echo "\#include <asm-generic/$$F>" > $(installdir)/$$F; \ |
d8ecc5cd | 100 | done; \ |
db1bec4f | 101 | touch $@ |
8d730cfb | 102 | |
7712401a SR |
103 | quiet_cmd_remove = REMOVE $(unwanted) |
104 | cmd_remove = rm -f $(unwanted-file) | |
8d730cfb | 105 | |
7712401a | 106 | quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files) |
7211b8b9 SP |
107 | # Headers list can be pretty long, xargs helps to avoid |
108 | # the "Argument list too long" error. | |
109 | cmd_check = for f in $(all-files); do \ | |
10b63956 | 110 | echo "$(installdir)/$${f}"; done \ |
7211b8b9 SP |
111 | | xargs \ |
112 | $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \ | |
7712401a | 113 | touch $@ |
de789125 | 114 | |
7712401a SR |
115 | ifndef HDRCHECK |
116 | # Rules for installing headers | |
05d8cba4 | 117 | __headers: $(install-file) |
7712401a | 118 | @: |
de789125 | 119 | |
7712401a | 120 | targets += $(install-file) |
7c025b2a | 121 | $(install-file): scripts/headers_install.sh \ |
fcc8487d ND |
122 | $(addprefix $(srcdir)/,$(header-files)) \ |
123 | $(addprefix $(gendir)/,$(genhdr-files)) FORCE | |
7712401a SR |
124 | $(if $(unwanted),$(call cmd,remove),) |
125 | $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@))) | |
126 | $(call if_changed,install) | |
de789125 | 127 | |
68475359 | 128 | else |
05d8cba4 | 129 | __headers: $(check-file) |
7712401a | 130 | @: |
8d730cfb | 131 | |
7712401a SR |
132 | targets += $(check-file) |
133 | $(check-file): scripts/headers_check.pl $(output-files) FORCE | |
134 | $(call if_changed,check) | |
8d730cfb | 135 | |
7712401a | 136 | endif |
de789125 | 137 | |
7712401a SR |
138 | targets := $(wildcard $(sort $(targets))) |
139 | cmd_files := $(wildcard \ | |
140 | $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | |
4e420aa9 | 141 | |
7712401a SR |
142 | ifneq ($(cmd_files),) |
143 | include $(cmd_files) | |
8d730cfb DW |
144 | endif |
145 | ||
05d8cba4 MY |
146 | endif # skip-inst |
147 | ||
7712401a SR |
148 | .PHONY: $(PHONY) |
149 | PHONY += FORCE | |
150 | FORCE: ; |