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