kbuild: only one call for include/ in make headers_*
[linux-2.6.git] / scripts / Makefile.headersinst
1 # ==========================================================================
2 # Installing headers
3 #
4 # header-y files will be installed verbatim
5 # unifdef-y are the files where unifdef will be run before installing files
6 # objhdr-y are generated files that will be installed verbatim
7 #
8 # ==========================================================================
9
10 UNIFDEF := scripts/unifdef -U__KERNEL__
11
12 # Eliminate the contents of (and inclusions of) compiler.h
13 HDRSED  := sed  -e "s/ inline / __inline__ /g" \
14                 -e "s/[[:space:]]__user[[:space:]]\{1,\}/ /g" \
15                 -e "s/(__user[[:space:]]\{1,\}/ (/g" \
16                 -e "s/[[:space:]]__force[[:space:]]\{1,\}/ /g" \
17                 -e "s/(__force[[:space:]]\{1,\}/ (/g" \
18                 -e "s/[[:space:]]__iomem[[:space:]]\{1,\}/ /g" \
19                 -e "s/(__iomem[[:space:]]\{1,\}/ (/g" \
20                 -e "s/[[:space:]]__attribute_const__[[:space:]]\{1,\}/\ /g" \
21                 -e "s/[[:space:]]__attribute_const__$$//" \
22                 -e "/^\#include <linux\/compiler.h>/d"
23
24 _dst := $(if $(dst),$(dst),$(obj))
25
26 kbuild-file := $(srctree)/$(obj)/Kbuild
27 include $(kbuild-file)
28
29 include scripts/Kbuild.include
30
31 install := $(INSTALL_HDR_PATH)/$(_dst)
32
33 header-y        := $(sort $(header-y) $(unifdef-y))
34 subdir-y        := $(patsubst %/,%,$(filter %/, $(header-y)))
35 header-y        := $(filter-out %/, $(header-y))
36
37 # stamp files for header checks
38 check-y         := $(patsubst %,.check.%,$(header-y) $(objhdr-y))
39
40 # Work out what needs to be removed
41 oldheaders      := $(patsubst $(install)/%,%,$(wildcard $(install)/*.h))
42 unwanted        := $(filter-out $(header-y) $(objhdr-y),$(oldheaders))
43
44 oldcheckstamps  := $(patsubst $(install)/%,%,$(wildcard $(install)/.check.*.h))
45 unwanted        += $(filter-out $(check-y),$(oldcheckstamps))
46
47 # Prefix them all with full paths to $(INSTALL_HDR_PATH)
48 header-y        := $(patsubst %,$(install)/%,$(header-y))
49 objhdr-y        := $(patsubst %,$(install)/%,$(objhdr-y))
50 check-y         := $(patsubst %,$(install)/%,$(check-y))
51
52 quiet_cmd_o_hdr_install = INSTALL $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
53       cmd_o_hdr_install = cp $(patsubst $(install)/%,$(objtree)/$(obj)/%,$@) \
54                              $(install)
55
56 quiet_cmd_unifdef = UNIFDEF $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
57       cmd_unifdef = $(UNIFDEF) $(patsubst $(install)/%,$(srctree)/$(obj)/%,$@)\
58                                | $(HDRSED) > $@ || :
59
60 quiet_cmd_check = CHECK   $(patsubst $(install)/.check.%,$(_dst)/%,$@)
61       cmd_check = $(CONFIG_SHELL) $(srctree)/scripts/hdrcheck.sh \
62                   $(INSTALL_HDR_PATH)/include $(subst /.check.,/,$@) $@
63
64 quiet_cmd_remove = REMOVE  $(_dst)/$@
65       cmd_remove = rm -f $(install)/$@
66
67 quiet_cmd_mkdir  = MKDIR   $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
68       cmd_mkdir  = mkdir -p $@
69
70 .PHONY: __headersinst __headerscheck
71
72 ifdef HDRCHECK
73 __headerscheck: $(subdir-y) $(check-y)
74         @true
75
76 $(check-y) : $(install)/.check.%.h : $(install)/%.h
77         $(call cmd,check)
78
79 # Other dependencies for $(check-y)
80 include /dev/null $(wildcard $(check-y))
81
82 # but leave $(check-y) as .PHONY for now until those
83 # deps are actually correct.
84 .PHONY: $(check-y)
85
86 else
87 # Rules for installing headers
88 __headersinst: $(subdir-y) $(header-y) $(objhdr-y)
89         @true
90
91 $(objhdr-y) $(subdir-y) $(header-y): | $(install) $(unwanted)
92
93 $(install):
94         $(call cmd,mkdir)
95
96 # Rules for removing unwanted header files
97 .PHONY: $(unwanted)
98 $(unwanted):
99         $(call cmd,remove)
100
101 # Install generated files
102 $(objhdr-y): $(install)/%.h: $(objtree)/$(obj)/%.h $(kbuild-file)
103         $(call cmd,o_hdr_install)
104
105 # Unifdef header files and install them
106 $(header-y): $(install)/%.h: $(srctree)/$(obj)/%.h $(kbuild-file)
107         $(call cmd,unifdef)
108
109 endif
110
111 hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
112
113 # Recursion
114 .PHONY: $(subdir-y)
115 $(subdir-y):
116         $(Q)$(MAKE) $(hdr-inst)=$(obj)/$@ dst=$(_dst)/$@