checkpatch: check utf-8 content from a commit log when it's missing from charset
[linux-3.10.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 # called may set destination dir (when installing to asm/)
11 _dst := $(or $(destination-y),$(dst),$(obj))
12
13 # generated header directory
14 gen := $(if $(gen),$(gen),$(subst include/,include/generated/,$(obj)))
15
16 kbuild-file := $(srctree)/$(obj)/Kbuild
17 include $(kbuild-file)
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-files   := $(foreach hdr, $(header-y), \
51                    $(or \
52                         $(wildcard $(srcdir)/$(hdr)), \
53                         $(wildcard $(oldsrcdir)/$(hdr)), \
54                         $(error Missing UAPI file $(srcdir)/$(hdr)) \
55                    )) \
56                  $(foreach hdr, $(genhdr-y), \
57                    $(or \
58                         $(wildcard $(gendir)/$(hdr)), \
59                         $(error Missing generated UAPI file $(gendir)/$(hdr)) \
60                    ))
61
62 # Work out what needs to be removed
63 oldheaders    := $(patsubst $(installdir)/%,%,$(wildcard $(installdir)/*.h))
64 unwanted      := $(filter-out $(all-files),$(oldheaders))
65
66 # Prefix unwanted with full paths to $(INSTALL_HDR_PATH)
67 unwanted-file := $(addprefix $(installdir)/, $(unwanted))
68
69 printdir = $(patsubst $(INSTALL_HDR_PATH)/%/,%,$(dir $@))
70
71 quiet_cmd_install = INSTALL $(printdir) ($(words $(all-files))\
72                             file$(if $(word 2, $(all-files)),s))
73       cmd_install = \
74         $(PERL) $< $(installdir) $(SRCARCH) $(input-files); \
75         for F in $(wrapper-files); do                                   \
76                 echo "\#include <asm-generic/$$F>" > $(installdir)/$$F;    \
77         done;                                                           \
78         touch $@
79
80 quiet_cmd_remove = REMOVE  $(unwanted)
81       cmd_remove = rm -f $(unwanted-file)
82
83 quiet_cmd_check = CHECK   $(printdir) ($(words $(all-files)) files)
84 # Headers list can be pretty long, xargs helps to avoid
85 # the "Argument list too long" error.
86       cmd_check = for f in $(all-files); do                          \
87                   echo "$(installdir)/$${f}"; done                      \
88                   | xargs                                            \
89                   $(PERL) $< $(INSTALL_HDR_PATH)/include $(SRCARCH); \
90                   touch $@
91
92 PHONY += __headersinst __headerscheck
93
94 ifndef HDRCHECK
95 # Rules for installing headers
96 __headersinst: $(subdirs) $(install-file)
97         @:
98
99 targets += $(install-file)
100 $(install-file): scripts/headers_install.pl $(input-files) FORCE
101         $(if $(unwanted),$(call cmd,remove),)
102         $(if $(wildcard $(dir $@)),,$(shell mkdir -p $(dir $@)))
103         $(call if_changed,install)
104
105 else
106 __headerscheck: $(subdirs) $(check-file)
107         @:
108
109 targets += $(check-file)
110 $(check-file): scripts/headers_check.pl $(output-files) FORCE
111         $(call if_changed,check)
112
113 endif
114
115 # Recursion
116 hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
117 .PHONY: $(subdirs)
118 $(subdirs):
119         $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@
120
121 targets := $(wildcard $(sort $(targets)))
122 cmd_files := $(wildcard \
123              $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
124
125 ifneq ($(cmd_files),)
126         include $(cmd_files)
127 endif
128
129 .PHONY: $(PHONY)
130 PHONY += FORCE
131 FORCE: ;