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