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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 | # objhdr-y - Same as header-y but for generated files | |
7 | # | |
8 | # ========================================================================== | |
9 | ||
10 | # called may set destination dir (when installing to asm/) | |
11 | _dst := $(if $(dst),$(dst),$(obj)) | |
12 | ||
13 | kbuild-file := $(srctree)/$(obj)/Kbuild | |
14 | include $(kbuild-file) | |
15 | ||
16 | _dst := $(if $(destination-y),$(destination-y),$(_dst)) | |
17 | ||
18 | include scripts/Kbuild.include | |
19 | ||
20 | install := $(INSTALL_HDR_PATH)/$(_dst) | |
21 | ||
22 | header-y := $(sort $(header-y)) | |
23 | subdirs := $(patsubst %/,%,$(filter %/, $(header-y))) | |
24 | header-y := $(filter-out %/, $(header-y)) | |
25 | ||
26 | # files used to track state of install/check | |
27 | install-file := $(install)/.install | |
28 | check-file := $(install)/.check | |
29 | ||
30 | # all headers files for this dir | |
31 | all-files := $(header-y) $(objhdr-y) | |
32 | input-files := $(addprefix $(srctree)/$(obj)/,$(header-y)) \ | |
33 | $(addprefix $(objtree)/$(obj)/,$(objhdr-y)) | |
34 | output-files := $(addprefix $(install)/, $(all-files)) | |
35 | ||
36 | # Work out what needs to be removed | |
37 | oldheaders := $(patsubst $(install)/%,%,$(wildcard $(install)/*.h)) | |
38 | unwanted := $(filter-out $(all-files),$(oldheaders)) | |
39 | ||
40 | # Prefix unwanted with full paths to $(INSTALL_HDR_PATH) | |
41 | unwanted-file := $(addprefix $(install)/, $(unwanted)) | |
42 | ||
43 | printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@)) | |
44 | ||
45 | quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\ | |
46 | file$(if $(word 2, $(all-files)),s)) | |
47 | cmd_install = \ | |
48 | $(PERL) $< $(srctree)/$(obj) $(install) $(SRCARCH) $(header-y); \ | |
49 | $(PERL) $< $(objtree)/$(obj) $(install) $(SRCARCH) $(objhdr-y); \ | |
50 | touch $@ | |
51 | ||
52 | quiet_cmd_remove = REMOVE $(unwanted) | |
53 | cmd_remove = rm -f $(unwanted-file) | |
54 | ||
55 | quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files) | |
56 | # Headers list can be pretty long, xargs helps to avoid | |
57 | # the "Argument list too long" error. | |
58 | cmd_check = for f in $(all-files); do \ | |
59 | echo "$(install)/$${f}"; done \ | |
60 | | xargs \ | |
61 | $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \ | |
62 | touch $@ | |
63 | ||
64 | PHONY += __headersinst __headerscheck | |
65 | ||
66 | ifndef HDRCHECK | |
67 | # Rules for installing headers | |
68 | __headersinst: $(subdirs) $(install-file) | |
69 | @: | |
70 | ||
71 | targets += $(install-file) | |
72 | $(install-file): scripts/headers_install.pl $(input-files) FORCE | |
73 | $(if $(unwanted),$(call cmd,remove),) | |
74 | $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@))) | |
75 | $(call if_changed,install) | |
76 | ||
77 | else | |
78 | __headerscheck: $(subdirs) $(check-file) | |
79 | @: | |
80 | ||
81 | targets += $(check-file) | |
82 | $(check-file): scripts/headers_check.pl $(output-files) FORCE | |
83 | $(call if_changed,check) | |
84 | ||
85 | endif | |
86 | ||
87 | # Recursion | |
88 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj | |
89 | .PHONY: $(subdirs) | |
90 | $(subdirs): | |
91 | $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@ | |
92 | ||
93 | targets := $(wildcard $(sort $(targets))) | |
94 | cmd_files := $(wildcard \ | |
95 | $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | |
96 | ||
97 | ifneq ($(cmd_files),) | |
98 | include $(cmd_files) | |
99 | endif | |
100 | ||
101 | .PHONY: $(PHONY) | |
102 | PHONY += FORCE | |
103 | FORCE: ; |