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Commit | Line | Data |
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8d730cfb DW |
1 | # ========================================================================== |
2 | # Installing headers | |
3 | # | |
7712401a SR |
4 | # header-y - list files to be installed. They are preprocessed |
5 | # to remove __KERNEL__ section of the file | |
40f1d4c2 | 6 | # genhdr-y - Same as header-y but in a generated/ directory |
8d730cfb DW |
7 | # |
8 | # ========================================================================== | |
9 | ||
cb97914b PA |
10 | # generated header directory |
11 | gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj))) | |
12 | ||
283039fb SR |
13 | kbuild-file := $(srctree)/$(obj)/Kbuild |
14 | include $(kbuild-file) | |
8d730cfb | 15 | |
9b58b928 | 16 | # called may set destination dir (when installing to asm/) |
c4619bc6 | 17 | _dst := $(if $(destination-y),$(destination-y),$(if $(dst),$(dst),$(obj))) |
9b58b928 | 18 | |
10b63956 DH |
19 | old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild |
20 | ifneq ($(wildcard $(old-kbuild-file)),) | |
21 | include $(old-kbuild-file) | |
22 | endif | |
c7bb349e | 23 | |
283039fb | 24 | include scripts/Kbuild.include |
de789125 | 25 | |
10b63956 | 26 | installdir := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst)) |
8d730cfb | 27 | |
7cfddeef | 28 | header-y := $(sort $(header-y)) |
7712401a SR |
29 | subdirs := $(patsubst %/,%,$(filter %/, $(header-y))) |
30 | header-y := $(filter-out %/, $(header-y)) | |
de789125 | 31 | |
7712401a | 32 | # files used to track state of install/check |
10b63956 DH |
33 | install-file := $(installdir)/.install |
34 | check-file := $(installdir)/.check | |
de789125 | 35 | |
d8ecc5cd SR |
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 | |
38 | wrapper-files := $(filter $(header-y), $(generic-y)) | |
39 | ||
10b63956 DH |
40 | srcdir := $(srctree)/$(obj) |
41 | gendir := $(objtree)/$(gen) | |
42 | ||
43 | oldsrcdir := $(srctree)/$(subst /uapi,,$(obj)) | |
44 | ||
7712401a | 45 | # all headers files for this dir |
d8ecc5cd | 46 | header-y := $(filter-out $(generic-y), $(header-y)) |
40f1d4c2 | 47 | all-files := $(header-y) $(genhdr-y) $(wrapper-files) |
10b63956 DH |
48 | output-files := $(addprefix $(installdir)/, $(all-files)) |
49 | ||
50 | input-files := $(foreach hdr, $(header-y), \ | |
c4619bc6 | 51 | $(if $(wildcard $(srcdir)/$(hdr)), \ |
10b63956 | 52 | $(wildcard $(srcdir)/$(hdr)), \ |
c4619bc6 SR |
53 | $(if $(wildcard $(oldsrcdir)/$(hdr)), \ |
54 | $(wildcard $(oldsrcdir)/$(hdr)), \ | |
55 | $(error Missing UAPI file $(srcdir)/$(hdr))) \ | |
10b63956 DH |
56 | )) \ |
57 | $(foreach hdr, $(genhdr-y), \ | |
c4619bc6 | 58 | $(if $(wildcard $(gendir)/$(hdr)), \ |
10b63956 DH |
59 | $(wildcard $(gendir)/$(hdr)), \ |
60 | $(error Missing generated UAPI file $(gendir)/$(hdr)) \ | |
61 | )) | |
de789125 | 62 | |
7712401a | 63 | # Work out what needs to be removed |
10b63956 | 64 | oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h)) |
7712401a | 65 | unwanted := $(filter-out $(all-files),$(oldheaders)) |
8d730cfb | 66 | |
7712401a | 67 | # Prefix unwanted with full paths to $(INSTALL_HDR_PATH) |
10b63956 | 68 | unwanted-file := $(addprefix $(installdir)/, $(unwanted)) |
de789125 | 69 | |
7712401a | 70 | printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@)) |
68475359 | 71 | |
7712401a SR |
72 | quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\ |
73 | file$(if $(word 2, $(all-files)),s)) | |
db1bec4f | 74 | cmd_install = \ |
10b63956 | 75 | $(PERL) $< $(installdir) $(SRCARCH) $(input-files); \ |
d8ecc5cd | 76 | for F in $(wrapper-files); do \ |
10b63956 | 77 | echo "\#include <asm-generic/$$F>" > $(installdir)/$$F; \ |
d8ecc5cd | 78 | done; \ |
db1bec4f | 79 | touch $@ |
8d730cfb | 80 | |
7712401a SR |
81 | quiet_cmd_remove = REMOVE $(unwanted) |
82 | cmd_remove = rm -f $(unwanted-file) | |
8d730cfb | 83 | |
7712401a | 84 | quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files) |
7211b8b9 SP |
85 | # Headers list can be pretty long, xargs helps to avoid |
86 | # the "Argument list too long" error. | |
87 | cmd_check = for f in $(all-files); do \ | |
10b63956 | 88 | echo "$(installdir)/$${f}"; done \ |
7211b8b9 SP |
89 | | xargs \ |
90 | $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \ | |
7712401a | 91 | touch $@ |
de789125 | 92 | |
7712401a | 93 | PHONY += __headersinst __headerscheck |
de789125 | 94 | |
7712401a SR |
95 | ifndef HDRCHECK |
96 | # Rules for installing headers | |
97 | __headersinst: $(subdirs) $(install-file) | |
98 | @: | |
de789125 | 99 | |
7712401a SR |
100 | targets += $(install-file) |
101 | $(install-file): scripts/headers_install.pl $(input-files) FORCE | |
102 | $(if $(unwanted),$(call cmd,remove),) | |
103 | $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@))) | |
104 | $(call if_changed,install) | |
de789125 | 105 | |
68475359 | 106 | else |
7712401a SR |
107 | __headerscheck: $(subdirs) $(check-file) |
108 | @: | |
8d730cfb | 109 | |
7712401a SR |
110 | targets += $(check-file) |
111 | $(check-file): scripts/headers_check.pl $(output-files) FORCE | |
112 | $(call if_changed,check) | |
8d730cfb | 113 | |
7712401a | 114 | endif |
de789125 | 115 | |
7712401a SR |
116 | # Recursion |
117 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj | |
118 | .PHONY: $(subdirs) | |
119 | $(subdirs): | |
120 | $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@ | |
8d730cfb | 121 | |
7712401a SR |
122 | targets := $(wildcard $(sort $(targets))) |
123 | cmd_files := $(wildcard \ | |
124 | $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | |
4e420aa9 | 125 | |
7712401a SR |
126 | ifneq ($(cmd_files),) |
127 | include $(cmd_files) | |
8d730cfb DW |
128 | endif |
129 | ||
7712401a SR |
130 | .PHONY: $(PHONY) |
131 | PHONY += FORCE | |
132 | FORCE: ; |