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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 | ||
7712401a | 43 | # all headers files for this dir |
d8ecc5cd | 44 | header-y := $(filter-out $(generic-y), $(header-y)) |
40f1d4c2 | 45 | all-files := $(header-y) $(genhdr-y) $(wrapper-files) |
10b63956 DH |
46 | output-files := $(addprefix $(installdir)/, $(all-files)) |
47 | ||
7c025b2a ND |
48 | # Check that all expected files exist |
49 | $(foreach hdr, $(header-y), \ | |
50 | $(if $(wildcard $(srcdir)/$(hdr)),, \ | |
51 | $(error Missing UAPI file $(srcdir)/$(hdr)) \ | |
52 | )) | |
53 | $(foreach hdr, $(genhdr-y), \ | |
54 | $(if $(wildcard $(gendir)/$(hdr)),, \ | |
55 | $(error Missing generated UAPI file $(gendir)/$(hdr)) \ | |
56 | )) | |
de789125 | 57 | |
7712401a | 58 | # Work out what needs to be removed |
10b63956 | 59 | oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h)) |
7712401a | 60 | unwanted := $(filter-out $(all-files),$(oldheaders)) |
8d730cfb | 61 | |
7712401a | 62 | # Prefix unwanted with full paths to $(INSTALL_HDR_PATH) |
10b63956 | 63 | unwanted-file := $(addprefix $(installdir)/, $(unwanted)) |
de789125 | 64 | |
7712401a | 65 | printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@)) |
68475359 | 66 | |
7712401a SR |
67 | quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\ |
68 | file$(if $(word 2, $(all-files)),s)) | |
db1bec4f | 69 | cmd_install = \ |
7c025b2a ND |
70 | $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-y); \ |
71 | $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-y); \ | |
d8ecc5cd | 72 | for F in $(wrapper-files); do \ |
10b63956 | 73 | echo "\#include <asm-generic/$$F>" > $(installdir)/$$F; \ |
d8ecc5cd | 74 | done; \ |
db1bec4f | 75 | touch $@ |
8d730cfb | 76 | |
7712401a SR |
77 | quiet_cmd_remove = REMOVE $(unwanted) |
78 | cmd_remove = rm -f $(unwanted-file) | |
8d730cfb | 79 | |
7712401a | 80 | quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files) |
7211b8b9 SP |
81 | # Headers list can be pretty long, xargs helps to avoid |
82 | # the "Argument list too long" error. | |
83 | cmd_check = for f in $(all-files); do \ | |
10b63956 | 84 | echo "$(installdir)/$${f}"; done \ |
7211b8b9 SP |
85 | | xargs \ |
86 | $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \ | |
7712401a | 87 | touch $@ |
de789125 | 88 | |
7712401a | 89 | PHONY += __headersinst __headerscheck |
de789125 | 90 | |
7712401a SR |
91 | ifndef HDRCHECK |
92 | # Rules for installing headers | |
93 | __headersinst: $(subdirs) $(install-file) | |
94 | @: | |
de789125 | 95 | |
7712401a | 96 | targets += $(install-file) |
7c025b2a ND |
97 | $(install-file): scripts/headers_install.sh \ |
98 | $(addprefix $(srcdir)/,$(header-y)) \ | |
99 | $(addprefix $(gendir)/,$(genhdr-y)) FORCE | |
7712401a SR |
100 | $(if $(unwanted),$(call cmd,remove),) |
101 | $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@))) | |
102 | $(call if_changed,install) | |
de789125 | 103 | |
68475359 | 104 | else |
7712401a SR |
105 | __headerscheck: $(subdirs) $(check-file) |
106 | @: | |
8d730cfb | 107 | |
7712401a SR |
108 | targets += $(check-file) |
109 | $(check-file): scripts/headers_check.pl $(output-files) FORCE | |
110 | $(call if_changed,check) | |
8d730cfb | 111 | |
7712401a | 112 | endif |
de789125 | 113 | |
7712401a | 114 | # Recursion |
7712401a SR |
115 | .PHONY: $(subdirs) |
116 | $(subdirs): | |
117 | $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@ | |
8d730cfb | 118 | |
7712401a SR |
119 | targets := $(wildcard $(sort $(targets))) |
120 | cmd_files := $(wildcard \ | |
121 | $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | |
4e420aa9 | 122 | |
7712401a SR |
123 | ifneq ($(cmd_files),) |
124 | include $(cmd_files) | |
8d730cfb DW |
125 | endif |
126 | ||
7712401a SR |
127 | .PHONY: $(PHONY) |
128 | PHONY += FORCE | |
129 | FORCE: ; |