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Commit | Line | Data |
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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 | |
11 | gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj))) | |
12 | ||
13 | kbuild-file := $(srctree)/$(obj)/Kbuild | |
14 | include $(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 | ||
19 | old-kbuild-file := $(srctree)/$(subst uapi/,,$(obj))/Kbuild | |
20 | ifneq ($(wildcard $(old-kbuild-file)),) | |
21 | include $(old-kbuild-file) | |
22 | endif | |
23 | ||
24 | include scripts/Kbuild.include | |
25 | ||
26 | installdir := $(INSTALL_HDR_PATH)/$(subst uapi/,,$(_dst)) | |
27 | ||
28 | header-y := $(sort $(header-y)) | |
29 | subdirs := $(patsubst %/,%,$(filter %/, $(header-y))) | |
30 | header-y := $(filter-out %/, $(header-y)) | |
31 | ||
32 | # files used to track state of install/check | |
33 | install-file := $(installdir)/.install | |
34 | check-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 | |
38 | wrapper-files := $(filter $(header-y), $(generic-y)) | |
39 | ||
40 | srcdir := $(srctree)/$(obj) | |
41 | gendir := $(objtree)/$(gen) | |
42 | ||
43 | oldsrcdir := $(srctree)/$(subst /uapi,,$(obj)) | |
44 | ||
45 | # all headers files for this dir | |
46 | header-y := $(filter-out $(generic-y), $(header-y)) | |
47 | all-files := $(header-y) $(genhdr-y) $(wrapper-files) | |
48 | output-files := $(addprefix $(installdir)/, $(all-files)) | |
49 | ||
50 | input-files1 := $(foreach hdr, $(header-y), \ | |
51 | $(if $(wildcard $(srcdir)/$(hdr)), \ | |
52 | $(wildcard $(srcdir)/$(hdr))) \ | |
53 | ) | |
54 | input-files1-name := $(notdir $(input-files1)) | |
55 | input-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 | )) | |
61 | input-files2-name := $(notdir $(input-files2)) | |
62 | input-files3 := $(foreach hdr, $(genhdr-y), \ | |
63 | $(if $(wildcard $(gendir)/$(hdr)), \ | |
64 | $(wildcard $(gendir)/$(hdr)), \ | |
65 | $(error Missing generated UAPI file $(gendir)/$(hdr)) \ | |
66 | )) | |
67 | input-files3-name := $(notdir $(input-files3)) | |
68 | ||
69 | # Work out what needs to be removed | |
70 | oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h)) | |
71 | unwanted := $(filter-out $(all-files),$(oldheaders)) | |
72 | ||
73 | # Prefix unwanted with full paths to $(INSTALL_HDR_PATH) | |
74 | unwanted-file := $(addprefix $(installdir)/, $(unwanted)) | |
75 | ||
76 | printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@)) | |
77 | ||
78 | quiet_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 | ||
89 | quiet_cmd_remove = REMOVE $(unwanted) | |
90 | cmd_remove = rm -f $(unwanted-file) | |
91 | ||
92 | quiet_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 | ||
101 | PHONY += __headersinst __headerscheck | |
102 | ||
103 | ifndef HDRCHECK | |
104 | # Rules for installing headers | |
105 | __headersinst: $(subdirs) $(install-file) | |
106 | @: | |
107 | ||
108 | targets += $(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 | ||
114 | else | |
115 | __headerscheck: $(subdirs) $(check-file) | |
116 | @: | |
117 | ||
118 | targets += $(check-file) | |
119 | $(check-file): scripts/headers_check.pl $(output-files) FORCE | |
120 | $(call if_changed,check) | |
121 | ||
122 | endif | |
123 | ||
124 | # Recursion | |
125 | .PHONY: $(subdirs) | |
126 | $(subdirs): | |
127 | $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@ | |
128 | ||
129 | targets := $(wildcard $(sort $(targets))) | |
130 | cmd_files := $(wildcard \ | |
131 | $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | |
132 | ||
133 | ifneq ($(cmd_files),) | |
134 | include $(cmd_files) | |
135 | endif | |
136 | ||
137 | .PHONY: $(PHONY) | |
138 | PHONY += FORCE | |
139 | FORCE: ; |