Commit | Line | Data |
---|---|---|
8d730cfb DW |
1 | # ========================================================================== |
2 | # Installing headers | |
3 | # | |
fcc8487d | 4 | # All headers under include/uapi, include/generated/uapi, |
61562f98 | 5 | # arch/<arch>/include/uapi and arch/<arch>/include/generated/uapi are |
fcc8487d ND |
6 | # exported. |
7 | # They are preprocessed to remove __KERNEL__ section of the file. | |
8d730cfb DW |
8 | # |
9 | # ========================================================================== | |
10 | ||
05d8cba4 MY |
11 | PHONY := __headers |
12 | __headers: | |
13 | ||
14 | include scripts/Kbuild.include | |
15 | ||
16 | srcdir := $(srctree)/$(obj) | |
2f263d14 RG |
17 | |
18 | # When make is run under a fakechroot environment, the function | |
19 | # $(wildcard $(srcdir)/*/.) doesn't only return directories, but also regular | |
20 | # files. So, we are using a combination of sort/dir/wildcard which works | |
21 | # with fakechroot. | |
22 | subdirs := $(patsubst $(srcdir)/%/,%,\ | |
23 | $(filter-out $(srcdir)/,\ | |
24 | $(sort $(dir $(wildcard $(srcdir)/*/))))) | |
25 | ||
05d8cba4 MY |
26 | # Recursion |
27 | __headers: $(subdirs) | |
28 | ||
29 | .PHONY: $(subdirs) | |
30 | $(subdirs): | |
a8ff49a1 | 31 | $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(dst)/$@ |
05d8cba4 MY |
32 | |
33 | # Skip header install/check for include/uapi and arch/$(hdr-arch)/include/uapi. | |
34 | # We have only sub-directories there. | |
35 | skip-inst := $(if $(filter %/uapi,$(obj)),1) | |
36 | ||
37 | ifeq ($(skip-inst),) | |
38 | ||
fcc8487d | 39 | # Kbuild file is optional |
283039fb | 40 | kbuild-file := $(srctree)/$(obj)/Kbuild |
fcc8487d | 41 | -include $(kbuild-file) |
8d730cfb | 42 | |
a8ff49a1 | 43 | installdir := $(INSTALL_HDR_PATH)/$(dst) |
87ebb94e | 44 | gendir := $(objtree)/$(subst include/,include/generated/,$(obj)) |
fcc8487d ND |
45 | header-files := $(notdir $(wildcard $(srcdir)/*.h)) |
46 | header-files += $(notdir $(wildcard $(srcdir)/*.agh)) | |
47 | header-files := $(filter-out $(no-export-headers), $(header-files)) | |
48 | genhdr-files := $(notdir $(wildcard $(gendir)/*.h)) | |
49 | genhdr-files := $(filter-out $(header-files), $(genhdr-files)) | |
de789125 | 50 | |
7712401a | 51 | # files used to track state of install/check |
10b63956 DH |
52 | install-file := $(installdir)/.install |
53 | check-file := $(installdir)/.check | |
de789125 | 54 | |
d8ecc5cd SR |
55 | # generic-y list all files an architecture uses from asm-generic |
56 | # Use this to build a list of headers which require a wrapper | |
fcc8487d ND |
57 | generic-files := $(notdir $(wildcard $(srctree)/include/uapi/asm-generic/*.h)) |
58 | wrapper-files := $(filter $(generic-files), $(generic-y)) | |
59 | wrapper-files := $(filter-out $(header-files), $(wrapper-files)) | |
10b63956 | 60 | |
7712401a | 61 | # all headers files for this dir |
fcc8487d | 62 | all-files := $(header-files) $(genhdr-files) $(wrapper-files) |
10b63956 DH |
63 | output-files := $(addprefix $(installdir)/, $(all-files)) |
64 | ||
fcc8487d ND |
65 | ifneq ($(mandatory-y),) |
66 | missing := $(filter-out $(all-files),$(mandatory-y)) | |
67 | ifneq ($(missing),) | |
68 | $(error Some mandatory headers ($(missing)) are missing in $(obj)) | |
69 | endif | |
70 | endif | |
de789125 | 71 | |
7712401a | 72 | # Work out what needs to be removed |
10b63956 | 73 | oldheaders := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h)) |
7712401a | 74 | unwanted := $(filter-out $(all-files),$(oldheaders)) |
8d730cfb | 75 | |
7712401a | 76 | # Prefix unwanted with full paths to $(INSTALL_HDR_PATH) |
10b63956 | 77 | unwanted-file := $(addprefix $(installdir)/, $(unwanted)) |
de789125 | 78 | |
7712401a | 79 | printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@)) |
68475359 | 80 | |
7712401a SR |
81 | quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\ |
82 | file$(if $(word 2, $(all-files)),s)) | |
db1bec4f | 83 | cmd_install = \ |
fcc8487d ND |
84 | $(CONFIG_SHELL) $< $(installdir) $(srcdir) $(header-files); \ |
85 | $(CONFIG_SHELL) $< $(installdir) $(gendir) $(genhdr-files); \ | |
d8ecc5cd | 86 | for F in $(wrapper-files); do \ |
10b63956 | 87 | echo "\#include <asm-generic/$$F>" > $(installdir)/$$F; \ |
d8ecc5cd | 88 | done; \ |
db1bec4f | 89 | touch $@ |
8d730cfb | 90 | |
7712401a SR |
91 | quiet_cmd_remove = REMOVE $(unwanted) |
92 | cmd_remove = rm -f $(unwanted-file) | |
8d730cfb | 93 | |
7712401a | 94 | quiet_cmd_check = CHECK $(printdir) ($(words $(all-files)) files) |
7211b8b9 SP |
95 | # Headers list can be pretty long, xargs helps to avoid |
96 | # the "Argument list too long" error. | |
97 | cmd_check = for f in $(all-files); do \ | |
10b63956 | 98 | echo "$(installdir)/$${f}"; done \ |
7211b8b9 SP |
99 | | xargs \ |
100 | $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \ | |
7712401a | 101 | touch $@ |
de789125 | 102 | |
7712401a SR |
103 | ifndef HDRCHECK |
104 | # Rules for installing headers | |
05d8cba4 | 105 | __headers: $(install-file) |
7712401a | 106 | @: |
de789125 | 107 | |
7712401a | 108 | targets += $(install-file) |
7c025b2a | 109 | $(install-file): scripts/headers_install.sh \ |
fcc8487d ND |
110 | $(addprefix $(srcdir)/,$(header-files)) \ |
111 | $(addprefix $(gendir)/,$(genhdr-files)) FORCE | |
7712401a SR |
112 | $(if $(unwanted),$(call cmd,remove),) |
113 | $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@))) | |
114 | $(call if_changed,install) | |
de789125 | 115 | |
68475359 | 116 | else |
05d8cba4 | 117 | __headers: $(check-file) |
7712401a | 118 | @: |
8d730cfb | 119 | |
7712401a SR |
120 | targets += $(check-file) |
121 | $(check-file): scripts/headers_check.pl $(output-files) FORCE | |
122 | $(call if_changed,check) | |
8d730cfb | 123 | |
7712401a | 124 | endif |
de789125 | 125 | |
7712401a SR |
126 | targets := $(wildcard $(sort $(targets))) |
127 | cmd_files := $(wildcard \ | |
128 | $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | |
4e420aa9 | 129 | |
7712401a SR |
130 | ifneq ($(cmd_files),) |
131 | include $(cmd_files) | |
8d730cfb DW |
132 | endif |
133 | ||
05d8cba4 MY |
134 | endif # skip-inst |
135 | ||
7712401a SR |
136 | .PHONY: $(PHONY) |
137 | PHONY += FORCE | |
138 | FORCE: ; |