drivers: power: report battery voltage in AOSP compatible format
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / scripts / Makefile.headersinst
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 hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
126 .PHONY: $(subdirs)
127 $(subdirs):
128 $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
129
130 targets := $(wildcard $(sort $(targets)))
131 cmd_files := $(wildcard \
132 $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
133
134 ifneq ($(cmd_files),)
135 include $(cmd_files)
136 endif
137
138 .PHONY: $(PHONY)
139 PHONY += FORCE
140 FORCE: ;