Eric Lee / smarc-ti-linux-kernel

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Commit d6d211db37e75de2ddc3a4f979038c40df7cc79c

Authored by Linus Torvalds
1 parent 181da3c34a
Exists in ti-lsk-linux-4.1.y and in 12 other branches dlt-processor-sdk-linux-03.00.00.04, processor-sdk-linux-02.00.01, smarc-ti-linux-3.15.y, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-04.01.00.06, smarct3x-processor-sdk-linux-02.00.01, smarct3x-processor-sdk-linux-03.00.00.04, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-04.01.00.06, smarct4x-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-03.00.00.04, ti-linux-3.15.y

Linux 3.15-rc5

Showing 1 changed file with 1 additions and 1 deletions Inline Diff

1 VERSION = 3 1 VERSION = 3
2 PATCHLEVEL = 15 2 PATCHLEVEL = 15
3 SUBLEVEL = 0 3 SUBLEVEL = 0
4 EXTRAVERSION = -rc4 4 EXTRAVERSION = -rc5
5 NAME = Shuffling Zombie Juror 5 NAME = Shuffling Zombie Juror
6 6
7 # *DOCUMENTATION* 7 # *DOCUMENTATION*
8 # To see a list of typical targets execute "make help" 8 # To see a list of typical targets execute "make help"
9 # More info can be located in ./README 9 # More info can be located in ./README
10 # Comments in this file are targeted only to the developer, do not 10 # Comments in this file are targeted only to the developer, do not
11 # expect to learn how to build the kernel reading this file. 11 # expect to learn how to build the kernel reading this file.
12 12
13 # Do not: 13 # Do not:
14 # o use make's built-in rules and variables 14 # o use make's built-in rules and variables
15 # (this increases performance and avoids hard-to-debug behaviour); 15 # (this increases performance and avoids hard-to-debug behaviour);
16 # o print "Entering directory ..."; 16 # o print "Entering directory ...";
17 MAKEFLAGS += -rR --no-print-directory 17 MAKEFLAGS += -rR --no-print-directory
18 18
19 # Avoid funny character set dependencies 19 # Avoid funny character set dependencies
20 unexport LC_ALL 20 unexport LC_ALL
21 LC_COLLATE=C 21 LC_COLLATE=C
22 LC_NUMERIC=C 22 LC_NUMERIC=C
23 export LC_COLLATE LC_NUMERIC 23 export LC_COLLATE LC_NUMERIC
24 24
25 # Avoid interference with shell env settings 25 # Avoid interference with shell env settings
26 unexport GREP_OPTIONS 26 unexport GREP_OPTIONS
27 27
28 # We are using a recursive build, so we need to do a little thinking 28 # We are using a recursive build, so we need to do a little thinking
29 # to get the ordering right. 29 # to get the ordering right.
30 # 30 #
31 # Most importantly: sub-Makefiles should only ever modify files in 31 # Most importantly: sub-Makefiles should only ever modify files in
32 # their own directory. If in some directory we have a dependency on 32 # their own directory. If in some directory we have a dependency on
33 # a file in another dir (which doesn't happen often, but it's often 33 # a file in another dir (which doesn't happen often, but it's often
34 # unavoidable when linking the built-in.o targets which finally 34 # unavoidable when linking the built-in.o targets which finally
35 # turn into vmlinux), we will call a sub make in that other dir, and 35 # turn into vmlinux), we will call a sub make in that other dir, and
36 # after that we are sure that everything which is in that other dir 36 # after that we are sure that everything which is in that other dir
37 # is now up to date. 37 # is now up to date.
38 # 38 #
39 # The only cases where we need to modify files which have global 39 # The only cases where we need to modify files which have global
40 # effects are thus separated out and done before the recursive 40 # effects are thus separated out and done before the recursive
41 # descending is started. They are now explicitly listed as the 41 # descending is started. They are now explicitly listed as the
42 # prepare rule. 42 # prepare rule.
43 43
44 # To put more focus on warnings, be less verbose as default 44 # To put more focus on warnings, be less verbose as default
45 # Use 'make V=1' to see the full commands 45 # Use 'make V=1' to see the full commands
46 46
47 ifeq ("$(origin V)", "command line") 47 ifeq ("$(origin V)", "command line")
48 KBUILD_VERBOSE = $(V) 48 KBUILD_VERBOSE = $(V)
49 endif 49 endif
50 ifndef KBUILD_VERBOSE 50 ifndef KBUILD_VERBOSE
51 KBUILD_VERBOSE = 0 51 KBUILD_VERBOSE = 0
52 endif 52 endif
53 53
54 # Call a source code checker (by default, "sparse") as part of the 54 # Call a source code checker (by default, "sparse") as part of the
55 # C compilation. 55 # C compilation.
56 # 56 #
57 # Use 'make C=1' to enable checking of only re-compiled files. 57 # Use 'make C=1' to enable checking of only re-compiled files.
58 # Use 'make C=2' to enable checking of *all* source files, regardless 58 # Use 'make C=2' to enable checking of *all* source files, regardless
59 # of whether they are re-compiled or not. 59 # of whether they are re-compiled or not.
60 # 60 #
61 # See the file "Documentation/sparse.txt" for more details, including 61 # See the file "Documentation/sparse.txt" for more details, including
62 # where to get the "sparse" utility. 62 # where to get the "sparse" utility.
63 63
64 ifeq ("$(origin C)", "command line") 64 ifeq ("$(origin C)", "command line")
65 KBUILD_CHECKSRC = $(C) 65 KBUILD_CHECKSRC = $(C)
66 endif 66 endif
67 ifndef KBUILD_CHECKSRC 67 ifndef KBUILD_CHECKSRC
68 KBUILD_CHECKSRC = 0 68 KBUILD_CHECKSRC = 0
69 endif 69 endif
70 70
71 # Use make M=dir to specify directory of external module to build 71 # Use make M=dir to specify directory of external module to build
72 # Old syntax make ... SUBDIRS=$PWD is still supported 72 # Old syntax make ... SUBDIRS=$PWD is still supported
73 # Setting the environment variable KBUILD_EXTMOD take precedence 73 # Setting the environment variable KBUILD_EXTMOD take precedence
74 ifdef SUBDIRS 74 ifdef SUBDIRS
75 KBUILD_EXTMOD ?= $(SUBDIRS) 75 KBUILD_EXTMOD ?= $(SUBDIRS)
76 endif 76 endif
77 77
78 ifeq ("$(origin M)", "command line") 78 ifeq ("$(origin M)", "command line")
79 KBUILD_EXTMOD := $(M) 79 KBUILD_EXTMOD := $(M)
80 endif 80 endif
81 81
82 # kbuild supports saving output files in a separate directory. 82 # kbuild supports saving output files in a separate directory.
83 # To locate output files in a separate directory two syntaxes are supported. 83 # To locate output files in a separate directory two syntaxes are supported.
84 # In both cases the working directory must be the root of the kernel src. 84 # In both cases the working directory must be the root of the kernel src.
85 # 1) O= 85 # 1) O=
86 # Use "make O=dir/to/store/output/files/" 86 # Use "make O=dir/to/store/output/files/"
87 # 87 #
88 # 2) Set KBUILD_OUTPUT 88 # 2) Set KBUILD_OUTPUT
89 # Set the environment variable KBUILD_OUTPUT to point to the directory 89 # Set the environment variable KBUILD_OUTPUT to point to the directory
90 # where the output files shall be placed. 90 # where the output files shall be placed.
91 # export KBUILD_OUTPUT=dir/to/store/output/files/ 91 # export KBUILD_OUTPUT=dir/to/store/output/files/
92 # make 92 # make
93 # 93 #
94 # The O= assignment takes precedence over the KBUILD_OUTPUT environment 94 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
95 # variable. 95 # variable.
96 96
97 97
98 # KBUILD_SRC is set on invocation of make in OBJ directory 98 # KBUILD_SRC is set on invocation of make in OBJ directory
99 # KBUILD_SRC is not intended to be used by the regular user (for now) 99 # KBUILD_SRC is not intended to be used by the regular user (for now)
100 ifeq ($(KBUILD_SRC),) 100 ifeq ($(KBUILD_SRC),)
101 101
102 # OK, Make called in directory where kernel src resides 102 # OK, Make called in directory where kernel src resides
103 # Do we want to locate output files in a separate directory? 103 # Do we want to locate output files in a separate directory?
104 ifeq ("$(origin O)", "command line") 104 ifeq ("$(origin O)", "command line")
105 KBUILD_OUTPUT := $(O) 105 KBUILD_OUTPUT := $(O)
106 endif 106 endif
107 107
108 ifeq ("$(origin W)", "command line") 108 ifeq ("$(origin W)", "command line")
109 export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) 109 export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W)
110 endif 110 endif
111 111
112 # That's our default target when none is given on the command line 112 # That's our default target when none is given on the command line
113 PHONY := _all 113 PHONY := _all
114 _all: 114 _all:
115 115
116 # Cancel implicit rules on top Makefile 116 # Cancel implicit rules on top Makefile
117 $(CURDIR)/Makefile Makefile: ; 117 $(CURDIR)/Makefile Makefile: ;
118 118
119 ifneq ($(KBUILD_OUTPUT),) 119 ifneq ($(KBUILD_OUTPUT),)
120 # Invoke a second make in the output directory, passing relevant variables 120 # Invoke a second make in the output directory, passing relevant variables
121 # check that the output directory actually exists 121 # check that the output directory actually exists
122 saved-output := $(KBUILD_OUTPUT) 122 saved-output := $(KBUILD_OUTPUT)
123 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 123 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
124 && /bin/pwd) 124 && /bin/pwd)
125 $(if $(KBUILD_OUTPUT),, \ 125 $(if $(KBUILD_OUTPUT),, \
126 $(error failed to create output directory "$(saved-output)")) 126 $(error failed to create output directory "$(saved-output)"))
127 127
128 PHONY += $(MAKECMDGOALS) sub-make 128 PHONY += $(MAKECMDGOALS) sub-make
129 129
130 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 130 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
131 @: 131 @:
132 132
133 sub-make: FORCE 133 sub-make: FORCE
134 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ 134 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
135 KBUILD_SRC=$(CURDIR) \ 135 KBUILD_SRC=$(CURDIR) \
136 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ 136 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
137 $(filter-out _all sub-make,$(MAKECMDGOALS)) 137 $(filter-out _all sub-make,$(MAKECMDGOALS))
138 138
139 # Leave processing to above invocation of make 139 # Leave processing to above invocation of make
140 skip-makefile := 1 140 skip-makefile := 1
141 endif # ifneq ($(KBUILD_OUTPUT),) 141 endif # ifneq ($(KBUILD_OUTPUT),)
142 endif # ifeq ($(KBUILD_SRC),) 142 endif # ifeq ($(KBUILD_SRC),)
143 143
144 # We process the rest of the Makefile if this is the final invocation of make 144 # We process the rest of the Makefile if this is the final invocation of make
145 ifeq ($(skip-makefile),) 145 ifeq ($(skip-makefile),)
146 146
147 # If building an external module we do not care about the all: rule 147 # If building an external module we do not care about the all: rule
148 # but instead _all depend on modules 148 # but instead _all depend on modules
149 PHONY += all 149 PHONY += all
150 ifeq ($(KBUILD_EXTMOD),) 150 ifeq ($(KBUILD_EXTMOD),)
151 _all: all 151 _all: all
152 else 152 else
153 _all: modules 153 _all: modules
154 endif 154 endif
155 155
156 srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) 156 srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
157 objtree := $(CURDIR) 157 objtree := $(CURDIR)
158 src := $(srctree) 158 src := $(srctree)
159 obj := $(objtree) 159 obj := $(objtree)
160 160
161 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 161 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
162 162
163 export srctree objtree VPATH 163 export srctree objtree VPATH
164 164
165 165
166 # SUBARCH tells the usermode build what the underlying arch is. That is set 166 # SUBARCH tells the usermode build what the underlying arch is. That is set
167 # first, and if a usermode build is happening, the "ARCH=um" on the command 167 # first, and if a usermode build is happening, the "ARCH=um" on the command
168 # line overrides the setting of ARCH below. If a native build is happening, 168 # line overrides the setting of ARCH below. If a native build is happening,
169 # then ARCH is assigned, getting whatever value it gets normally, and 169 # then ARCH is assigned, getting whatever value it gets normally, and
170 # SUBARCH is subsequently ignored. 170 # SUBARCH is subsequently ignored.
171 171
172 SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ 172 SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
173 -e s/sun4u/sparc64/ \ 173 -e s/sun4u/sparc64/ \
174 -e s/arm.*/arm/ -e s/sa110/arm/ \ 174 -e s/arm.*/arm/ -e s/sa110/arm/ \
175 -e s/s390x/s390/ -e s/parisc64/parisc/ \ 175 -e s/s390x/s390/ -e s/parisc64/parisc/ \
176 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ 176 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
177 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ ) 177 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
178 178
179 # Cross compiling and selecting different set of gcc/bin-utils 179 # Cross compiling and selecting different set of gcc/bin-utils
180 # --------------------------------------------------------------------------- 180 # ---------------------------------------------------------------------------
181 # 181 #
182 # When performing cross compilation for other architectures ARCH shall be set 182 # When performing cross compilation for other architectures ARCH shall be set
183 # to the target architecture. (See arch/* for the possibilities). 183 # to the target architecture. (See arch/* for the possibilities).
184 # ARCH can be set during invocation of make: 184 # ARCH can be set during invocation of make:
185 # make ARCH=ia64 185 # make ARCH=ia64
186 # Another way is to have ARCH set in the environment. 186 # Another way is to have ARCH set in the environment.
187 # The default ARCH is the host where make is executed. 187 # The default ARCH is the host where make is executed.
188 188
189 # CROSS_COMPILE specify the prefix used for all executables used 189 # CROSS_COMPILE specify the prefix used for all executables used
190 # during compilation. Only gcc and related bin-utils executables 190 # during compilation. Only gcc and related bin-utils executables
191 # are prefixed with $(CROSS_COMPILE). 191 # are prefixed with $(CROSS_COMPILE).
192 # CROSS_COMPILE can be set on the command line 192 # CROSS_COMPILE can be set on the command line
193 # make CROSS_COMPILE=ia64-linux- 193 # make CROSS_COMPILE=ia64-linux-
194 # Alternatively CROSS_COMPILE can be set in the environment. 194 # Alternatively CROSS_COMPILE can be set in the environment.
195 # A third alternative is to store a setting in .config so that plain 195 # A third alternative is to store a setting in .config so that plain
196 # "make" in the configured kernel build directory always uses that. 196 # "make" in the configured kernel build directory always uses that.
197 # Default value for CROSS_COMPILE is not to prefix executables 197 # Default value for CROSS_COMPILE is not to prefix executables
198 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile 198 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
199 ARCH ?= $(SUBARCH) 199 ARCH ?= $(SUBARCH)
200 CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) 200 CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)
201 201
202 # Architecture as present in compile.h 202 # Architecture as present in compile.h
203 UTS_MACHINE := $(ARCH) 203 UTS_MACHINE := $(ARCH)
204 SRCARCH := $(ARCH) 204 SRCARCH := $(ARCH)
205 205
206 # Additional ARCH settings for x86 206 # Additional ARCH settings for x86
207 ifeq ($(ARCH),i386) 207 ifeq ($(ARCH),i386)
208 SRCARCH := x86 208 SRCARCH := x86
209 endif 209 endif
210 ifeq ($(ARCH),x86_64) 210 ifeq ($(ARCH),x86_64)
211 SRCARCH := x86 211 SRCARCH := x86
212 endif 212 endif
213 213
214 # Additional ARCH settings for sparc 214 # Additional ARCH settings for sparc
215 ifeq ($(ARCH),sparc32) 215 ifeq ($(ARCH),sparc32)
216 SRCARCH := sparc 216 SRCARCH := sparc
217 endif 217 endif
218 ifeq ($(ARCH),sparc64) 218 ifeq ($(ARCH),sparc64)
219 SRCARCH := sparc 219 SRCARCH := sparc
220 endif 220 endif
221 221
222 # Additional ARCH settings for sh 222 # Additional ARCH settings for sh
223 ifeq ($(ARCH),sh64) 223 ifeq ($(ARCH),sh64)
224 SRCARCH := sh 224 SRCARCH := sh
225 endif 225 endif
226 226
227 # Additional ARCH settings for tile 227 # Additional ARCH settings for tile
228 ifeq ($(ARCH),tilepro) 228 ifeq ($(ARCH),tilepro)
229 SRCARCH := tile 229 SRCARCH := tile
230 endif 230 endif
231 ifeq ($(ARCH),tilegx) 231 ifeq ($(ARCH),tilegx)
232 SRCARCH := tile 232 SRCARCH := tile
233 endif 233 endif
234 234
235 # Where to locate arch specific headers 235 # Where to locate arch specific headers
236 hdr-arch := $(SRCARCH) 236 hdr-arch := $(SRCARCH)
237 237
238 KCONFIG_CONFIG ?= .config 238 KCONFIG_CONFIG ?= .config
239 export KCONFIG_CONFIG 239 export KCONFIG_CONFIG
240 240
241 # SHELL used by kbuild 241 # SHELL used by kbuild
242 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 242 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
243 else if [ -x /bin/bash ]; then echo /bin/bash; \ 243 else if [ -x /bin/bash ]; then echo /bin/bash; \
244 else echo sh; fi ; fi) 244 else echo sh; fi ; fi)
245 245
246 HOSTCC = gcc 246 HOSTCC = gcc
247 HOSTCXX = g++ 247 HOSTCXX = g++
248 HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer 248 HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
249 HOSTCXXFLAGS = -O2 249 HOSTCXXFLAGS = -O2
250 250
251 ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1) 251 ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
252 HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \ 252 HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \
253 -Wno-missing-field-initializers -fno-delete-null-pointer-checks 253 -Wno-missing-field-initializers -fno-delete-null-pointer-checks
254 endif 254 endif
255 255
256 # Decide whether to build built-in, modular, or both. 256 # Decide whether to build built-in, modular, or both.
257 # Normally, just do built-in. 257 # Normally, just do built-in.
258 258
259 KBUILD_MODULES := 259 KBUILD_MODULES :=
260 KBUILD_BUILTIN := 1 260 KBUILD_BUILTIN := 1
261 261
262 # If we have only "make modules", don't compile built-in objects. 262 # If we have only "make modules", don't compile built-in objects.
263 # When we're building modules with modversions, we need to consider 263 # When we're building modules with modversions, we need to consider
264 # the built-in objects during the descend as well, in order to 264 # the built-in objects during the descend as well, in order to
265 # make sure the checksums are up to date before we record them. 265 # make sure the checksums are up to date before we record them.
266 266
267 ifeq ($(MAKECMDGOALS),modules) 267 ifeq ($(MAKECMDGOALS),modules)
268 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 268 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
269 endif 269 endif
270 270
271 # If we have "make <whatever> modules", compile modules 271 # If we have "make <whatever> modules", compile modules
272 # in addition to whatever we do anyway. 272 # in addition to whatever we do anyway.
273 # Just "make" or "make all" shall build modules as well 273 # Just "make" or "make all" shall build modules as well
274 274
275 ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 275 ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
276 KBUILD_MODULES := 1 276 KBUILD_MODULES := 1
277 endif 277 endif
278 278
279 ifeq ($(MAKECMDGOALS),) 279 ifeq ($(MAKECMDGOALS),)
280 KBUILD_MODULES := 1 280 KBUILD_MODULES := 1
281 endif 281 endif
282 282
283 export KBUILD_MODULES KBUILD_BUILTIN 283 export KBUILD_MODULES KBUILD_BUILTIN
284 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 284 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
285 285
286 # Beautify output 286 # Beautify output
287 # --------------------------------------------------------------------------- 287 # ---------------------------------------------------------------------------
288 # 288 #
289 # Normally, we echo the whole command before executing it. By making 289 # Normally, we echo the whole command before executing it. By making
290 # that echo $($(quiet)$(cmd)), we now have the possibility to set 290 # that echo $($(quiet)$(cmd)), we now have the possibility to set
291 # $(quiet) to choose other forms of output instead, e.g. 291 # $(quiet) to choose other forms of output instead, e.g.
292 # 292 #
293 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 293 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
294 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 294 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
295 # 295 #
296 # If $(quiet) is empty, the whole command will be printed. 296 # If $(quiet) is empty, the whole command will be printed.
297 # If it is set to "quiet_", only the short version will be printed. 297 # If it is set to "quiet_", only the short version will be printed.
298 # If it is set to "silent_", nothing will be printed at all, since 298 # If it is set to "silent_", nothing will be printed at all, since
299 # the variable $(silent_cmd_cc_o_c) doesn't exist. 299 # the variable $(silent_cmd_cc_o_c) doesn't exist.
300 # 300 #
301 # A simple variant is to prefix commands with $(Q) - that's useful 301 # A simple variant is to prefix commands with $(Q) - that's useful
302 # for commands that shall be hidden in non-verbose mode. 302 # for commands that shall be hidden in non-verbose mode.
303 # 303 #
304 # $(Q)ln $@ :< 304 # $(Q)ln $@ :<
305 # 305 #
306 # If KBUILD_VERBOSE equals 0 then the above command will be hidden. 306 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
307 # If KBUILD_VERBOSE equals 1 then the above command is displayed. 307 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
308 308
309 ifeq ($(KBUILD_VERBOSE),1) 309 ifeq ($(KBUILD_VERBOSE),1)
310 quiet = 310 quiet =
311 Q = 311 Q =
312 else 312 else
313 quiet=quiet_ 313 quiet=quiet_
314 Q = @ 314 Q = @
315 endif 315 endif
316 316
317 # If the user is running make -s (silent mode), suppress echoing of 317 # If the user is running make -s (silent mode), suppress echoing of
318 # commands 318 # commands
319 319
320 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 320 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
321 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 321 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
322 quiet=silent_ 322 quiet=silent_
323 endif 323 endif
324 else # make-3.8x 324 else # make-3.8x
325 ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 325 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
326 quiet=silent_ 326 quiet=silent_
327 endif 327 endif
328 endif 328 endif
329 329
330 export quiet Q KBUILD_VERBOSE 330 export quiet Q KBUILD_VERBOSE
331 331
332 ifneq ($(CC),) 332 ifneq ($(CC),)
333 ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1) 333 ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1)
334 COMPILER := clang 334 COMPILER := clang
335 else 335 else
336 COMPILER := gcc 336 COMPILER := gcc
337 endif 337 endif
338 export COMPILER 338 export COMPILER
339 endif 339 endif
340 340
341 # Look for make include files relative to root of kernel src 341 # Look for make include files relative to root of kernel src
342 MAKEFLAGS += --include-dir=$(srctree) 342 MAKEFLAGS += --include-dir=$(srctree)
343 343
344 # We need some generic definitions (do not try to remake the file). 344 # We need some generic definitions (do not try to remake the file).
345 $(srctree)/scripts/Kbuild.include: ; 345 $(srctree)/scripts/Kbuild.include: ;
346 include $(srctree)/scripts/Kbuild.include 346 include $(srctree)/scripts/Kbuild.include
347 347
348 # Make variables (CC, etc...) 348 # Make variables (CC, etc...)
349 349
350 AS = $(CROSS_COMPILE)as 350 AS = $(CROSS_COMPILE)as
351 LD = $(CROSS_COMPILE)ld 351 LD = $(CROSS_COMPILE)ld
352 CC = $(CROSS_COMPILE)gcc 352 CC = $(CROSS_COMPILE)gcc
353 CPP = $(CC) -E 353 CPP = $(CC) -E
354 AR = $(CROSS_COMPILE)ar 354 AR = $(CROSS_COMPILE)ar
355 NM = $(CROSS_COMPILE)nm 355 NM = $(CROSS_COMPILE)nm
356 STRIP = $(CROSS_COMPILE)strip 356 STRIP = $(CROSS_COMPILE)strip
357 OBJCOPY = $(CROSS_COMPILE)objcopy 357 OBJCOPY = $(CROSS_COMPILE)objcopy
358 OBJDUMP = $(CROSS_COMPILE)objdump 358 OBJDUMP = $(CROSS_COMPILE)objdump
359 AWK = awk 359 AWK = awk
360 GENKSYMS = scripts/genksyms/genksyms 360 GENKSYMS = scripts/genksyms/genksyms
361 INSTALLKERNEL := installkernel 361 INSTALLKERNEL := installkernel
362 DEPMOD = /sbin/depmod 362 DEPMOD = /sbin/depmod
363 PERL = perl 363 PERL = perl
364 CHECK = sparse 364 CHECK = sparse
365 365
366 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 366 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
367 -Wbitwise -Wno-return-void $(CF) 367 -Wbitwise -Wno-return-void $(CF)
368 CFLAGS_MODULE = 368 CFLAGS_MODULE =
369 AFLAGS_MODULE = 369 AFLAGS_MODULE =
370 LDFLAGS_MODULE = 370 LDFLAGS_MODULE =
371 CFLAGS_KERNEL = 371 CFLAGS_KERNEL =
372 AFLAGS_KERNEL = 372 AFLAGS_KERNEL =
373 CFLAGS_GCOV = -fprofile-arcs -ftest-coverage 373 CFLAGS_GCOV = -fprofile-arcs -ftest-coverage
374 374
375 375
376 # Use USERINCLUDE when you must reference the UAPI directories only. 376 # Use USERINCLUDE when you must reference the UAPI directories only.
377 USERINCLUDE := \ 377 USERINCLUDE := \
378 -I$(srctree)/arch/$(hdr-arch)/include/uapi \ 378 -I$(srctree)/arch/$(hdr-arch)/include/uapi \
379 -Iarch/$(hdr-arch)/include/generated/uapi \ 379 -Iarch/$(hdr-arch)/include/generated/uapi \
380 -I$(srctree)/include/uapi \ 380 -I$(srctree)/include/uapi \
381 -Iinclude/generated/uapi \ 381 -Iinclude/generated/uapi \
382 -include $(srctree)/include/linux/kconfig.h 382 -include $(srctree)/include/linux/kconfig.h
383 383
384 # Use LINUXINCLUDE when you must reference the include/ directory. 384 # Use LINUXINCLUDE when you must reference the include/ directory.
385 # Needed to be compatible with the O= option 385 # Needed to be compatible with the O= option
386 LINUXINCLUDE := \ 386 LINUXINCLUDE := \
387 -I$(srctree)/arch/$(hdr-arch)/include \ 387 -I$(srctree)/arch/$(hdr-arch)/include \
388 -Iarch/$(hdr-arch)/include/generated \ 388 -Iarch/$(hdr-arch)/include/generated \
389 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 389 $(if $(KBUILD_SRC), -I$(srctree)/include) \
390 -Iinclude \ 390 -Iinclude \
391 $(USERINCLUDE) 391 $(USERINCLUDE)
392 392
393 KBUILD_CPPFLAGS := -D__KERNEL__ 393 KBUILD_CPPFLAGS := -D__KERNEL__
394 394
395 KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ 395 KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
396 -fno-strict-aliasing -fno-common \ 396 -fno-strict-aliasing -fno-common \
397 -Werror-implicit-function-declaration \ 397 -Werror-implicit-function-declaration \
398 -Wno-format-security \ 398 -Wno-format-security \
399 $(call cc-option,-fno-delete-null-pointer-checks,) 399 $(call cc-option,-fno-delete-null-pointer-checks,)
400 KBUILD_AFLAGS_KERNEL := 400 KBUILD_AFLAGS_KERNEL :=
401 KBUILD_CFLAGS_KERNEL := 401 KBUILD_CFLAGS_KERNEL :=
402 KBUILD_AFLAGS := -D__ASSEMBLY__ 402 KBUILD_AFLAGS := -D__ASSEMBLY__
403 KBUILD_AFLAGS_MODULE := -DMODULE 403 KBUILD_AFLAGS_MODULE := -DMODULE
404 KBUILD_CFLAGS_MODULE := -DMODULE 404 KBUILD_CFLAGS_MODULE := -DMODULE
405 KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds 405 KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
406 406
407 # Read KERNELRELEASE from include/config/kernel.release (if it exists) 407 # Read KERNELRELEASE from include/config/kernel.release (if it exists)
408 KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) 408 KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
409 KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 409 KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
410 410
411 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION 411 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
412 export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC 412 export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
413 export CPP AR NM STRIP OBJCOPY OBJDUMP 413 export CPP AR NM STRIP OBJCOPY OBJDUMP
414 export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE 414 export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE
415 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS 415 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
416 416
417 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS 417 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
418 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV 418 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
419 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE 419 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
420 export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE 420 export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
421 export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL 421 export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
422 export KBUILD_ARFLAGS 422 export KBUILD_ARFLAGS
423 423
424 # When compiling out-of-tree modules, put MODVERDIR in the module 424 # When compiling out-of-tree modules, put MODVERDIR in the module
425 # tree rather than in the kernel tree. The kernel tree might 425 # tree rather than in the kernel tree. The kernel tree might
426 # even be read-only. 426 # even be read-only.
427 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 427 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
428 428
429 # Files to ignore in find ... statements 429 # Files to ignore in find ... statements
430 430
431 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 431 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
432 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 432 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
433 -prune -o 433 -prune -o
434 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 434 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
435 --exclude CVS --exclude .pc --exclude .hg --exclude .git 435 --exclude CVS --exclude .pc --exclude .hg --exclude .git
436 436
437 # =========================================================================== 437 # ===========================================================================
438 # Rules shared between *config targets and build targets 438 # Rules shared between *config targets and build targets
439 439
440 # Basic helpers built in scripts/ 440 # Basic helpers built in scripts/
441 PHONY += scripts_basic 441 PHONY += scripts_basic
442 scripts_basic: 442 scripts_basic:
443 $(Q)$(MAKE) $(build)=scripts/basic 443 $(Q)$(MAKE) $(build)=scripts/basic
444 $(Q)rm -f .tmp_quiet_recordmcount 444 $(Q)rm -f .tmp_quiet_recordmcount
445 445
446 # To avoid any implicit rule to kick in, define an empty command. 446 # To avoid any implicit rule to kick in, define an empty command.
447 scripts/basic/%: scripts_basic ; 447 scripts/basic/%: scripts_basic ;
448 448
449 PHONY += outputmakefile 449 PHONY += outputmakefile
450 # outputmakefile generates a Makefile in the output directory, if using a 450 # outputmakefile generates a Makefile in the output directory, if using a
451 # separate output directory. This allows convenient use of make in the 451 # separate output directory. This allows convenient use of make in the
452 # output directory. 452 # output directory.
453 outputmakefile: 453 outputmakefile:
454 ifneq ($(KBUILD_SRC),) 454 ifneq ($(KBUILD_SRC),)
455 $(Q)ln -fsn $(srctree) source 455 $(Q)ln -fsn $(srctree) source
456 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 456 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
457 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 457 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
458 endif 458 endif
459 459
460 # Support for using generic headers in asm-generic 460 # Support for using generic headers in asm-generic
461 PHONY += asm-generic 461 PHONY += asm-generic
462 asm-generic: 462 asm-generic:
463 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ 463 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
464 src=asm obj=arch/$(SRCARCH)/include/generated/asm 464 src=asm obj=arch/$(SRCARCH)/include/generated/asm
465 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ 465 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
466 src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm 466 src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm
467 467
468 # To make sure we do not include .config for any of the *config targets 468 # To make sure we do not include .config for any of the *config targets
469 # catch them early, and hand them over to scripts/kconfig/Makefile 469 # catch them early, and hand them over to scripts/kconfig/Makefile
470 # It is allowed to specify more targets when calling make, including 470 # It is allowed to specify more targets when calling make, including
471 # mixing *config targets and build targets. 471 # mixing *config targets and build targets.
472 # For example 'make oldconfig all'. 472 # For example 'make oldconfig all'.
473 # Detect when mixed targets is specified, and make a second invocation 473 # Detect when mixed targets is specified, and make a second invocation
474 # of make so .config is not included in this case either (for *config). 474 # of make so .config is not included in this case either (for *config).
475 475
476 version_h := include/generated/uapi/linux/version.h 476 version_h := include/generated/uapi/linux/version.h
477 477
478 no-dot-config-targets := clean mrproper distclean \ 478 no-dot-config-targets := clean mrproper distclean \
479 cscope gtags TAGS tags help %docs check% coccicheck \ 479 cscope gtags TAGS tags help %docs check% coccicheck \
480 $(version_h) headers_% archheaders archscripts \ 480 $(version_h) headers_% archheaders archscripts \
481 kernelversion %src-pkg 481 kernelversion %src-pkg
482 482
483 config-targets := 0 483 config-targets := 0
484 mixed-targets := 0 484 mixed-targets := 0
485 dot-config := 1 485 dot-config := 1
486 486
487 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 487 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
488 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 488 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
489 dot-config := 0 489 dot-config := 0
490 endif 490 endif
491 endif 491 endif
492 492
493 ifeq ($(KBUILD_EXTMOD),) 493 ifeq ($(KBUILD_EXTMOD),)
494 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 494 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
495 config-targets := 1 495 config-targets := 1
496 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 496 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
497 mixed-targets := 1 497 mixed-targets := 1
498 endif 498 endif
499 endif 499 endif
500 endif 500 endif
501 501
502 ifeq ($(mixed-targets),1) 502 ifeq ($(mixed-targets),1)
503 # =========================================================================== 503 # ===========================================================================
504 # We're called with mixed targets (*config and build targets). 504 # We're called with mixed targets (*config and build targets).
505 # Handle them one by one. 505 # Handle them one by one.
506 506
507 %:: FORCE 507 %:: FORCE
508 $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ 508 $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@
509 509
510 else 510 else
511 ifeq ($(config-targets),1) 511 ifeq ($(config-targets),1)
512 # =========================================================================== 512 # ===========================================================================
513 # *config targets only - make sure prerequisites are updated, and descend 513 # *config targets only - make sure prerequisites are updated, and descend
514 # in scripts/kconfig to make the *config target 514 # in scripts/kconfig to make the *config target
515 515
516 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. 516 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
517 # KBUILD_DEFCONFIG may point out an alternative default configuration 517 # KBUILD_DEFCONFIG may point out an alternative default configuration
518 # used for 'make defconfig' 518 # used for 'make defconfig'
519 include $(srctree)/arch/$(SRCARCH)/Makefile 519 include $(srctree)/arch/$(SRCARCH)/Makefile
520 export KBUILD_DEFCONFIG KBUILD_KCONFIG 520 export KBUILD_DEFCONFIG KBUILD_KCONFIG
521 521
522 config: scripts_basic outputmakefile FORCE 522 config: scripts_basic outputmakefile FORCE
523 $(Q)mkdir -p include/linux include/config 523 $(Q)mkdir -p include/linux include/config
524 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 524 $(Q)$(MAKE) $(build)=scripts/kconfig $@
525 525
526 %config: scripts_basic outputmakefile FORCE 526 %config: scripts_basic outputmakefile FORCE
527 $(Q)mkdir -p include/linux include/config 527 $(Q)mkdir -p include/linux include/config
528 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 528 $(Q)$(MAKE) $(build)=scripts/kconfig $@
529 529
530 else 530 else
531 # =========================================================================== 531 # ===========================================================================
532 # Build targets only - this includes vmlinux, arch specific targets, clean 532 # Build targets only - this includes vmlinux, arch specific targets, clean
533 # targets and others. In general all targets except *config targets. 533 # targets and others. In general all targets except *config targets.
534 534
535 ifeq ($(KBUILD_EXTMOD),) 535 ifeq ($(KBUILD_EXTMOD),)
536 # Additional helpers built in scripts/ 536 # Additional helpers built in scripts/
537 # Carefully list dependencies so we do not try to build scripts twice 537 # Carefully list dependencies so we do not try to build scripts twice
538 # in parallel 538 # in parallel
539 PHONY += scripts 539 PHONY += scripts
540 scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \ 540 scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \
541 asm-generic 541 asm-generic
542 $(Q)$(MAKE) $(build)=$(@) 542 $(Q)$(MAKE) $(build)=$(@)
543 543
544 # Objects we will link into vmlinux / subdirs we need to visit 544 # Objects we will link into vmlinux / subdirs we need to visit
545 init-y := init/ 545 init-y := init/
546 drivers-y := drivers/ sound/ firmware/ 546 drivers-y := drivers/ sound/ firmware/
547 net-y := net/ 547 net-y := net/
548 libs-y := lib/ 548 libs-y := lib/
549 core-y := usr/ 549 core-y := usr/
550 endif # KBUILD_EXTMOD 550 endif # KBUILD_EXTMOD
551 551
552 ifeq ($(dot-config),1) 552 ifeq ($(dot-config),1)
553 # Read in config 553 # Read in config
554 -include include/config/auto.conf 554 -include include/config/auto.conf
555 555
556 ifeq ($(KBUILD_EXTMOD),) 556 ifeq ($(KBUILD_EXTMOD),)
557 # Read in dependencies to all Kconfig* files, make sure to run 557 # Read in dependencies to all Kconfig* files, make sure to run
558 # oldconfig if changes are detected. 558 # oldconfig if changes are detected.
559 -include include/config/auto.conf.cmd 559 -include include/config/auto.conf.cmd
560 560
561 # To avoid any implicit rule to kick in, define an empty command 561 # To avoid any implicit rule to kick in, define an empty command
562 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 562 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
563 563
564 # If .config is newer than include/config/auto.conf, someone tinkered 564 # If .config is newer than include/config/auto.conf, someone tinkered
565 # with it and forgot to run make oldconfig. 565 # with it and forgot to run make oldconfig.
566 # if auto.conf.cmd is missing then we are probably in a cleaned tree so 566 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
567 # we execute the config step to be sure to catch updated Kconfig files 567 # we execute the config step to be sure to catch updated Kconfig files
568 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 568 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
569 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 569 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
570 else 570 else
571 # external modules needs include/generated/autoconf.h and include/config/auto.conf 571 # external modules needs include/generated/autoconf.h and include/config/auto.conf
572 # but do not care if they are up-to-date. Use auto.conf to trigger the test 572 # but do not care if they are up-to-date. Use auto.conf to trigger the test
573 PHONY += include/config/auto.conf 573 PHONY += include/config/auto.conf
574 574
575 include/config/auto.conf: 575 include/config/auto.conf:
576 $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ 576 $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \
577 echo >&2; \ 577 echo >&2; \
578 echo >&2 " ERROR: Kernel configuration is invalid."; \ 578 echo >&2 " ERROR: Kernel configuration is invalid."; \
579 echo >&2 " include/generated/autoconf.h or $@ are missing.";\ 579 echo >&2 " include/generated/autoconf.h or $@ are missing.";\
580 echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ 580 echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \
581 echo >&2 ; \ 581 echo >&2 ; \
582 /bin/false) 582 /bin/false)
583 583
584 endif # KBUILD_EXTMOD 584 endif # KBUILD_EXTMOD
585 585
586 else 586 else
587 # Dummy target needed, because used as prerequisite 587 # Dummy target needed, because used as prerequisite
588 include/config/auto.conf: ; 588 include/config/auto.conf: ;
589 endif # $(dot-config) 589 endif # $(dot-config)
590 590
591 # The all: target is the default when no target is given on the 591 # The all: target is the default when no target is given on the
592 # command line. 592 # command line.
593 # This allow a user to issue only 'make' to build a kernel including modules 593 # This allow a user to issue only 'make' to build a kernel including modules
594 # Defaults to vmlinux, but the arch makefile usually adds further targets 594 # Defaults to vmlinux, but the arch makefile usually adds further targets
595 all: vmlinux 595 all: vmlinux
596 596
597 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 597 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
598 KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) 598 KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
599 else 599 else
600 KBUILD_CFLAGS += -O2 600 KBUILD_CFLAGS += -O2
601 endif 601 endif
602 602
603 include $(srctree)/arch/$(SRCARCH)/Makefile 603 include $(srctree)/arch/$(SRCARCH)/Makefile
604 604
605 ifdef CONFIG_READABLE_ASM 605 ifdef CONFIG_READABLE_ASM
606 # Disable optimizations that make assembler listings hard to read. 606 # Disable optimizations that make assembler listings hard to read.
607 # reorder blocks reorders the control in the function 607 # reorder blocks reorders the control in the function
608 # ipa clone creates specialized cloned functions 608 # ipa clone creates specialized cloned functions
609 # partial inlining inlines only parts of functions 609 # partial inlining inlines only parts of functions
610 KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ 610 KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \
611 $(call cc-option,-fno-ipa-cp-clone,) \ 611 $(call cc-option,-fno-ipa-cp-clone,) \
612 $(call cc-option,-fno-partial-inlining) 612 $(call cc-option,-fno-partial-inlining)
613 endif 613 endif
614 614
615 ifneq ($(CONFIG_FRAME_WARN),0) 615 ifneq ($(CONFIG_FRAME_WARN),0)
616 KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) 616 KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
617 endif 617 endif
618 618
619 # Handle stack protector mode. 619 # Handle stack protector mode.
620 ifdef CONFIG_CC_STACKPROTECTOR_REGULAR 620 ifdef CONFIG_CC_STACKPROTECTOR_REGULAR
621 stackp-flag := -fstack-protector 621 stackp-flag := -fstack-protector
622 ifeq ($(call cc-option, $(stackp-flag)),) 622 ifeq ($(call cc-option, $(stackp-flag)),)
623 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \ 623 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \
624 -fstack-protector not supported by compiler) 624 -fstack-protector not supported by compiler)
625 endif 625 endif
626 else 626 else
627 ifdef CONFIG_CC_STACKPROTECTOR_STRONG 627 ifdef CONFIG_CC_STACKPROTECTOR_STRONG
628 stackp-flag := -fstack-protector-strong 628 stackp-flag := -fstack-protector-strong
629 ifeq ($(call cc-option, $(stackp-flag)),) 629 ifeq ($(call cc-option, $(stackp-flag)),)
630 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \ 630 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \
631 -fstack-protector-strong not supported by compiler) 631 -fstack-protector-strong not supported by compiler)
632 endif 632 endif
633 else 633 else
634 # Force off for distro compilers that enable stack protector by default. 634 # Force off for distro compilers that enable stack protector by default.
635 stackp-flag := $(call cc-option, -fno-stack-protector) 635 stackp-flag := $(call cc-option, -fno-stack-protector)
636 endif 636 endif
637 endif 637 endif
638 KBUILD_CFLAGS += $(stackp-flag) 638 KBUILD_CFLAGS += $(stackp-flag)
639 639
640 ifeq ($(COMPILER),clang) 640 ifeq ($(COMPILER),clang)
641 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 641 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
642 KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) 642 KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,)
643 KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) 643 KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable)
644 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 644 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
645 KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 645 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
646 # Quiet clang warning: comparison of unsigned expression < 0 is always false 646 # Quiet clang warning: comparison of unsigned expression < 0 is always false
647 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 647 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
648 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 648 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
649 # source of a reference will be _MergedGlobals and not on of the whitelisted names. 649 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
650 # See modpost pattern 2 650 # See modpost pattern 2
651 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 651 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
652 else 652 else
653 653
654 # This warning generated too much noise in a regular build. 654 # This warning generated too much noise in a regular build.
655 # Use make W=1 to enable this warning (see scripts/Makefile.build) 655 # Use make W=1 to enable this warning (see scripts/Makefile.build)
656 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) 656 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
657 endif 657 endif
658 658
659 ifdef CONFIG_FRAME_POINTER 659 ifdef CONFIG_FRAME_POINTER
660 KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls 660 KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
661 else 661 else
662 # Some targets (ARM with Thumb2, for example), can't be built with frame 662 # Some targets (ARM with Thumb2, for example), can't be built with frame
663 # pointers. For those, we don't have FUNCTION_TRACER automatically 663 # pointers. For those, we don't have FUNCTION_TRACER automatically
664 # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is 664 # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is
665 # incompatible with -fomit-frame-pointer with current GCC, so we don't use 665 # incompatible with -fomit-frame-pointer with current GCC, so we don't use
666 # -fomit-frame-pointer with FUNCTION_TRACER. 666 # -fomit-frame-pointer with FUNCTION_TRACER.
667 ifndef CONFIG_FUNCTION_TRACER 667 ifndef CONFIG_FUNCTION_TRACER
668 KBUILD_CFLAGS += -fomit-frame-pointer 668 KBUILD_CFLAGS += -fomit-frame-pointer
669 endif 669 endif
670 endif 670 endif
671 671
672 ifdef CONFIG_DEBUG_INFO 672 ifdef CONFIG_DEBUG_INFO
673 KBUILD_CFLAGS += -g 673 KBUILD_CFLAGS += -g
674 KBUILD_AFLAGS += -Wa,--gdwarf-2 674 KBUILD_AFLAGS += -Wa,--gdwarf-2
675 endif 675 endif
676 676
677 ifdef CONFIG_DEBUG_INFO_REDUCED 677 ifdef CONFIG_DEBUG_INFO_REDUCED
678 KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ 678 KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \
679 $(call cc-option,-fno-var-tracking) 679 $(call cc-option,-fno-var-tracking)
680 endif 680 endif
681 681
682 ifdef CONFIG_FUNCTION_TRACER 682 ifdef CONFIG_FUNCTION_TRACER
683 ifdef CONFIG_HAVE_FENTRY 683 ifdef CONFIG_HAVE_FENTRY
684 CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) 684 CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY)
685 endif 685 endif
686 KBUILD_CFLAGS += -pg $(CC_USING_FENTRY) 686 KBUILD_CFLAGS += -pg $(CC_USING_FENTRY)
687 KBUILD_AFLAGS += $(CC_USING_FENTRY) 687 KBUILD_AFLAGS += $(CC_USING_FENTRY)
688 ifdef CONFIG_DYNAMIC_FTRACE 688 ifdef CONFIG_DYNAMIC_FTRACE
689 ifdef CONFIG_HAVE_C_RECORDMCOUNT 689 ifdef CONFIG_HAVE_C_RECORDMCOUNT
690 BUILD_C_RECORDMCOUNT := y 690 BUILD_C_RECORDMCOUNT := y
691 export BUILD_C_RECORDMCOUNT 691 export BUILD_C_RECORDMCOUNT
692 endif 692 endif
693 endif 693 endif
694 endif 694 endif
695 695
696 # We trigger additional mismatches with less inlining 696 # We trigger additional mismatches with less inlining
697 ifdef CONFIG_DEBUG_SECTION_MISMATCH 697 ifdef CONFIG_DEBUG_SECTION_MISMATCH
698 KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) 698 KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
699 endif 699 endif
700 700
701 # arch Makefile may override CC so keep this after arch Makefile is included 701 # arch Makefile may override CC so keep this after arch Makefile is included
702 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 702 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
703 CHECKFLAGS += $(NOSTDINC_FLAGS) 703 CHECKFLAGS += $(NOSTDINC_FLAGS)
704 704
705 # warn about C99 declaration after statement 705 # warn about C99 declaration after statement
706 KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) 706 KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
707 707
708 # disable pointer signed / unsigned warnings in gcc 4.0 708 # disable pointer signed / unsigned warnings in gcc 4.0
709 KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) 709 KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
710 710
711 # disable invalid "can't wrap" optimizations for signed / pointers 711 # disable invalid "can't wrap" optimizations for signed / pointers
712 KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) 712 KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow)
713 713
714 # conserve stack if available 714 # conserve stack if available
715 KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) 715 KBUILD_CFLAGS += $(call cc-option,-fconserve-stack)
716 716
717 # disallow errors like 'EXPORT_GPL(foo);' with missing header 717 # disallow errors like 'EXPORT_GPL(foo);' with missing header
718 KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) 718 KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int)
719 719
720 # require functions to have arguments in prototypes, not empty 'int foo()' 720 # require functions to have arguments in prototypes, not empty 'int foo()'
721 KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) 721 KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes)
722 722
723 # Prohibit date/time macros, which would make the build non-deterministic 723 # Prohibit date/time macros, which would make the build non-deterministic
724 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 724 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
725 725
726 # use the deterministic mode of AR if available 726 # use the deterministic mode of AR if available
727 KBUILD_ARFLAGS := $(call ar-option,D) 727 KBUILD_ARFLAGS := $(call ar-option,D)
728 728
729 # check for 'asm goto' 729 # check for 'asm goto'
730 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) 730 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
731 KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO 731 KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
732 endif 732 endif
733 733
734 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 734 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
735 KBUILD_CPPFLAGS += $(KCPPFLAGS) 735 KBUILD_CPPFLAGS += $(KCPPFLAGS)
736 KBUILD_AFLAGS += $(KAFLAGS) 736 KBUILD_AFLAGS += $(KAFLAGS)
737 KBUILD_CFLAGS += $(KCFLAGS) 737 KBUILD_CFLAGS += $(KCFLAGS)
738 738
739 # Use --build-id when available. 739 # Use --build-id when available.
740 LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ 740 LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
741 $(call cc-ldoption, -Wl$(comma)--build-id,)) 741 $(call cc-ldoption, -Wl$(comma)--build-id,))
742 KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) 742 KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
743 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) 743 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
744 744
745 ifeq ($(CONFIG_STRIP_ASM_SYMS),y) 745 ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
746 LDFLAGS_vmlinux += $(call ld-option, -X,) 746 LDFLAGS_vmlinux += $(call ld-option, -X,)
747 endif 747 endif
748 748
749 # Default kernel image to build when no specific target is given. 749 # Default kernel image to build when no specific target is given.
750 # KBUILD_IMAGE may be overruled on the command line or 750 # KBUILD_IMAGE may be overruled on the command line or
751 # set in the environment 751 # set in the environment
752 # Also any assignments in arch/$(ARCH)/Makefile take precedence over 752 # Also any assignments in arch/$(ARCH)/Makefile take precedence over
753 # this default value 753 # this default value
754 export KBUILD_IMAGE ?= vmlinux 754 export KBUILD_IMAGE ?= vmlinux
755 755
756 # 756 #
757 # INSTALL_PATH specifies where to place the updated kernel and system map 757 # INSTALL_PATH specifies where to place the updated kernel and system map
758 # images. Default is /boot, but you can set it to other values 758 # images. Default is /boot, but you can set it to other values
759 export INSTALL_PATH ?= /boot 759 export INSTALL_PATH ?= /boot
760 760
761 # 761 #
762 # INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots. 762 # INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots.
763 # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as 763 # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as
764 # an argument if needed. Otherwise it defaults to the kernel install path 764 # an argument if needed. Otherwise it defaults to the kernel install path
765 # 765 #
766 export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) 766 export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE)
767 767
768 # 768 #
769 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory 769 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
770 # relocations required by build roots. This is not defined in the 770 # relocations required by build roots. This is not defined in the
771 # makefile but the argument can be passed to make if needed. 771 # makefile but the argument can be passed to make if needed.
772 # 772 #
773 773
774 MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) 774 MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
775 export MODLIB 775 export MODLIB
776 776
777 # 777 #
778 # INSTALL_MOD_STRIP, if defined, will cause modules to be 778 # INSTALL_MOD_STRIP, if defined, will cause modules to be
779 # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then 779 # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then
780 # the default option --strip-debug will be used. Otherwise, 780 # the default option --strip-debug will be used. Otherwise,
781 # INSTALL_MOD_STRIP value will be used as the options to the strip command. 781 # INSTALL_MOD_STRIP value will be used as the options to the strip command.
782 782
783 ifdef INSTALL_MOD_STRIP 783 ifdef INSTALL_MOD_STRIP
784 ifeq ($(INSTALL_MOD_STRIP),1) 784 ifeq ($(INSTALL_MOD_STRIP),1)
785 mod_strip_cmd = $(STRIP) --strip-debug 785 mod_strip_cmd = $(STRIP) --strip-debug
786 else 786 else
787 mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) 787 mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
788 endif # INSTALL_MOD_STRIP=1 788 endif # INSTALL_MOD_STRIP=1
789 else 789 else
790 mod_strip_cmd = true 790 mod_strip_cmd = true
791 endif # INSTALL_MOD_STRIP 791 endif # INSTALL_MOD_STRIP
792 export mod_strip_cmd 792 export mod_strip_cmd
793 793
794 # Select initial ramdisk compression format, default is gzip(1). 794 # Select initial ramdisk compression format, default is gzip(1).
795 # This shall be used by the dracut(8) tool while creating an initramfs image. 795 # This shall be used by the dracut(8) tool while creating an initramfs image.
796 # 796 #
797 INITRD_COMPRESS-y := gzip 797 INITRD_COMPRESS-y := gzip
798 INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2 798 INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2
799 INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma 799 INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma
800 INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz 800 INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz
801 INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo 801 INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo
802 INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4 802 INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4
803 # do not export INITRD_COMPRESS, since we didn't actually 803 # do not export INITRD_COMPRESS, since we didn't actually
804 # choose a sane default compression above. 804 # choose a sane default compression above.
805 # export INITRD_COMPRESS := $(INITRD_COMPRESS-y) 805 # export INITRD_COMPRESS := $(INITRD_COMPRESS-y)
806 806
807 ifdef CONFIG_MODULE_SIG_ALL 807 ifdef CONFIG_MODULE_SIG_ALL
808 MODSECKEY = ./signing_key.priv 808 MODSECKEY = ./signing_key.priv
809 MODPUBKEY = ./signing_key.x509 809 MODPUBKEY = ./signing_key.x509
810 export MODPUBKEY 810 export MODPUBKEY
811 mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) 811 mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY)
812 else 812 else
813 mod_sign_cmd = true 813 mod_sign_cmd = true
814 endif 814 endif
815 export mod_sign_cmd 815 export mod_sign_cmd
816 816
817 817
818 ifeq ($(KBUILD_EXTMOD),) 818 ifeq ($(KBUILD_EXTMOD),)
819 core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ 819 core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
820 820
821 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ 821 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
822 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ 822 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
823 $(net-y) $(net-m) $(libs-y) $(libs-m))) 823 $(net-y) $(net-m) $(libs-y) $(libs-m)))
824 824
825 vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ 825 vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
826 $(init-n) $(init-) \ 826 $(init-n) $(init-) \
827 $(core-n) $(core-) $(drivers-n) $(drivers-) \ 827 $(core-n) $(core-) $(drivers-n) $(drivers-) \
828 $(net-n) $(net-) $(libs-n) $(libs-)))) 828 $(net-n) $(net-) $(libs-n) $(libs-))))
829 829
830 init-y := $(patsubst %/, %/built-in.o, $(init-y)) 830 init-y := $(patsubst %/, %/built-in.o, $(init-y))
831 core-y := $(patsubst %/, %/built-in.o, $(core-y)) 831 core-y := $(patsubst %/, %/built-in.o, $(core-y))
832 drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) 832 drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))
833 net-y := $(patsubst %/, %/built-in.o, $(net-y)) 833 net-y := $(patsubst %/, %/built-in.o, $(net-y))
834 libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) 834 libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
835 libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) 835 libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))
836 libs-y := $(libs-y1) $(libs-y2) 836 libs-y := $(libs-y1) $(libs-y2)
837 837
838 # Externally visible symbols (used by link-vmlinux.sh) 838 # Externally visible symbols (used by link-vmlinux.sh)
839 export KBUILD_VMLINUX_INIT := $(head-y) $(init-y) 839 export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)
840 export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) 840 export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y)
841 export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds 841 export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
842 export LDFLAGS_vmlinux 842 export LDFLAGS_vmlinux
843 # used by scripts/pacmage/Makefile 843 # used by scripts/pacmage/Makefile
844 export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt) 844 export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt)
845 845
846 vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) 846 vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN)
847 847
848 # Final link of vmlinux 848 # Final link of vmlinux
849 cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) 849 cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux)
850 quiet_cmd_link-vmlinux = LINK $@ 850 quiet_cmd_link-vmlinux = LINK $@
851 851
852 # Include targets which we want to 852 # Include targets which we want to
853 # execute if the rest of the kernel build went well. 853 # execute if the rest of the kernel build went well.
854 vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE 854 vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE
855 ifdef CONFIG_HEADERS_CHECK 855 ifdef CONFIG_HEADERS_CHECK
856 $(Q)$(MAKE) -f $(srctree)/Makefile headers_check 856 $(Q)$(MAKE) -f $(srctree)/Makefile headers_check
857 endif 857 endif
858 ifdef CONFIG_SAMPLES 858 ifdef CONFIG_SAMPLES
859 $(Q)$(MAKE) $(build)=samples 859 $(Q)$(MAKE) $(build)=samples
860 endif 860 endif
861 ifdef CONFIG_BUILD_DOCSRC 861 ifdef CONFIG_BUILD_DOCSRC
862 $(Q)$(MAKE) $(build)=Documentation 862 $(Q)$(MAKE) $(build)=Documentation
863 endif 863 endif
864 +$(call if_changed,link-vmlinux) 864 +$(call if_changed,link-vmlinux)
865 865
866 # The actual objects are generated when descending, 866 # The actual objects are generated when descending,
867 # make sure no implicit rule kicks in 867 # make sure no implicit rule kicks in
868 $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; 868 $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
869 869
870 # Handle descending into subdirectories listed in $(vmlinux-dirs) 870 # Handle descending into subdirectories listed in $(vmlinux-dirs)
871 # Preset locale variables to speed up the build process. Limit locale 871 # Preset locale variables to speed up the build process. Limit locale
872 # tweaks to this spot to avoid wrong language settings when running 872 # tweaks to this spot to avoid wrong language settings when running
873 # make menuconfig etc. 873 # make menuconfig etc.
874 # Error messages still appears in the original language 874 # Error messages still appears in the original language
875 875
876 PHONY += $(vmlinux-dirs) 876 PHONY += $(vmlinux-dirs)
877 $(vmlinux-dirs): prepare scripts 877 $(vmlinux-dirs): prepare scripts
878 $(Q)$(MAKE) $(build)=$@ 878 $(Q)$(MAKE) $(build)=$@
879 879
880 define filechk_kernel.release 880 define filechk_kernel.release
881 echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 881 echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
882 endef 882 endef
883 883
884 # Store (new) KERNELRELEASE string in include/config/kernel.release 884 # Store (new) KERNELRELEASE string in include/config/kernel.release
885 include/config/kernel.release: include/config/auto.conf FORCE 885 include/config/kernel.release: include/config/auto.conf FORCE
886 $(call filechk,kernel.release) 886 $(call filechk,kernel.release)
887 887
888 888
889 # Things we need to do before we recursively start building the kernel 889 # Things we need to do before we recursively start building the kernel
890 # or the modules are listed in "prepare". 890 # or the modules are listed in "prepare".
891 # A multi level approach is used. prepareN is processed before prepareN-1. 891 # A multi level approach is used. prepareN is processed before prepareN-1.
892 # archprepare is used in arch Makefiles and when processed asm symlink, 892 # archprepare is used in arch Makefiles and when processed asm symlink,
893 # version.h and scripts_basic is processed / created. 893 # version.h and scripts_basic is processed / created.
894 894
895 # Listed in dependency order 895 # Listed in dependency order
896 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 896 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
897 897
898 # prepare3 is used to check if we are building in a separate output directory, 898 # prepare3 is used to check if we are building in a separate output directory,
899 # and if so do: 899 # and if so do:
900 # 1) Check that make has not been executed in the kernel src $(srctree) 900 # 1) Check that make has not been executed in the kernel src $(srctree)
901 prepare3: include/config/kernel.release 901 prepare3: include/config/kernel.release
902 ifneq ($(KBUILD_SRC),) 902 ifneq ($(KBUILD_SRC),)
903 @$(kecho) ' Using $(srctree) as source for kernel' 903 @$(kecho) ' Using $(srctree) as source for kernel'
904 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 904 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
905 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 905 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
906 echo >&2 " in the '$(srctree)' directory.";\ 906 echo >&2 " in the '$(srctree)' directory.";\
907 /bin/false; \ 907 /bin/false; \
908 fi; 908 fi;
909 endif 909 endif
910 910
911 # prepare2 creates a makefile if using a separate output directory 911 # prepare2 creates a makefile if using a separate output directory
912 prepare2: prepare3 outputmakefile asm-generic 912 prepare2: prepare3 outputmakefile asm-generic
913 913
914 prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ 914 prepare1: prepare2 $(version_h) include/generated/utsrelease.h \
915 include/config/auto.conf 915 include/config/auto.conf
916 $(cmd_crmodverdir) 916 $(cmd_crmodverdir)
917 917
918 archprepare: archheaders archscripts prepare1 scripts_basic 918 archprepare: archheaders archscripts prepare1 scripts_basic
919 919
920 prepare0: archprepare FORCE 920 prepare0: archprepare FORCE
921 $(Q)$(MAKE) $(build)=. 921 $(Q)$(MAKE) $(build)=.
922 922
923 # All the preparing.. 923 # All the preparing..
924 prepare: prepare0 924 prepare: prepare0
925 925
926 # Generate some files 926 # Generate some files
927 # --------------------------------------------------------------------------- 927 # ---------------------------------------------------------------------------
928 928
929 # KERNELRELEASE can change from a few different places, meaning version.h 929 # KERNELRELEASE can change from a few different places, meaning version.h
930 # needs to be updated, so this check is forced on all builds 930 # needs to be updated, so this check is forced on all builds
931 931
932 uts_len := 64 932 uts_len := 64
933 define filechk_utsrelease.h 933 define filechk_utsrelease.h
934 if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ 934 if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
935 echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ 935 echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
936 exit 1; \ 936 exit 1; \
937 fi; \ 937 fi; \
938 (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) 938 (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)
939 endef 939 endef
940 940
941 define filechk_version.h 941 define filechk_version.h
942 (echo \#define LINUX_VERSION_CODE $(shell \ 942 (echo \#define LINUX_VERSION_CODE $(shell \
943 expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ 943 expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \
944 echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) 944 echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)
945 endef 945 endef
946 946
947 $(version_h): $(srctree)/Makefile FORCE 947 $(version_h): $(srctree)/Makefile FORCE
948 $(call filechk,version.h) 948 $(call filechk,version.h)
949 949
950 include/generated/utsrelease.h: include/config/kernel.release FORCE 950 include/generated/utsrelease.h: include/config/kernel.release FORCE
951 $(call filechk,utsrelease.h) 951 $(call filechk,utsrelease.h)
952 952
953 PHONY += headerdep 953 PHONY += headerdep
954 headerdep: 954 headerdep:
955 $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ 955 $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \
956 $(srctree)/scripts/headerdep.pl -I$(srctree)/include 956 $(srctree)/scripts/headerdep.pl -I$(srctree)/include
957 957
958 # --------------------------------------------------------------------------- 958 # ---------------------------------------------------------------------------
959 959
960 PHONY += depend dep 960 PHONY += depend dep
961 depend dep: 961 depend dep:
962 @echo '*** Warning: make $@ is unnecessary now.' 962 @echo '*** Warning: make $@ is unnecessary now.'
963 963
964 # --------------------------------------------------------------------------- 964 # ---------------------------------------------------------------------------
965 # Firmware install 965 # Firmware install
966 INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware 966 INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware
967 export INSTALL_FW_PATH 967 export INSTALL_FW_PATH
968 968
969 PHONY += firmware_install 969 PHONY += firmware_install
970 firmware_install: FORCE 970 firmware_install: FORCE
971 @mkdir -p $(objtree)/firmware 971 @mkdir -p $(objtree)/firmware
972 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install 972 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install
973 973
974 # --------------------------------------------------------------------------- 974 # ---------------------------------------------------------------------------
975 # Kernel headers 975 # Kernel headers
976 976
977 #Default location for installed headers 977 #Default location for installed headers
978 export INSTALL_HDR_PATH = $(objtree)/usr 978 export INSTALL_HDR_PATH = $(objtree)/usr
979 979
980 hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj 980 hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
981 981
982 # If we do an all arch process set dst to asm-$(hdr-arch) 982 # If we do an all arch process set dst to asm-$(hdr-arch)
983 hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) 983 hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)
984 984
985 PHONY += archheaders 985 PHONY += archheaders
986 archheaders: 986 archheaders:
987 987
988 PHONY += archscripts 988 PHONY += archscripts
989 archscripts: 989 archscripts:
990 990
991 PHONY += __headers 991 PHONY += __headers
992 __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE 992 __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE
993 $(Q)$(MAKE) $(build)=scripts build_unifdef 993 $(Q)$(MAKE) $(build)=scripts build_unifdef
994 994
995 PHONY += headers_install_all 995 PHONY += headers_install_all
996 headers_install_all: 996 headers_install_all:
997 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install 997 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install
998 998
999 PHONY += headers_install 999 PHONY += headers_install
1000 headers_install: __headers 1000 headers_install: __headers
1001 $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ 1001 $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
1002 $(error Headers not exportable for the $(SRCARCH) architecture)) 1002 $(error Headers not exportable for the $(SRCARCH) architecture))
1003 $(Q)$(MAKE) $(hdr-inst)=include/uapi 1003 $(Q)$(MAKE) $(hdr-inst)=include/uapi
1004 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) 1004 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst)
1005 1005
1006 PHONY += headers_check_all 1006 PHONY += headers_check_all
1007 headers_check_all: headers_install_all 1007 headers_check_all: headers_install_all
1008 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check 1008 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check
1009 1009
1010 PHONY += headers_check 1010 PHONY += headers_check
1011 headers_check: headers_install 1011 headers_check: headers_install
1012 $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1 1012 $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
1013 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1 1013 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1
1014 1014
1015 # --------------------------------------------------------------------------- 1015 # ---------------------------------------------------------------------------
1016 # Modules 1016 # Modules
1017 1017
1018 ifdef CONFIG_MODULES 1018 ifdef CONFIG_MODULES
1019 1019
1020 # By default, build modules as well 1020 # By default, build modules as well
1021 1021
1022 all: modules 1022 all: modules
1023 1023
1024 # Build modules 1024 # Build modules
1025 # 1025 #
1026 # A module can be listed more than once in obj-m resulting in 1026 # A module can be listed more than once in obj-m resulting in
1027 # duplicate lines in modules.order files. Those are removed 1027 # duplicate lines in modules.order files. Those are removed
1028 # using awk while concatenating to the final file. 1028 # using awk while concatenating to the final file.
1029 1029
1030 PHONY += modules 1030 PHONY += modules
1031 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin 1031 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
1032 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order 1032 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
1033 @$(kecho) ' Building modules, stage 2.'; 1033 @$(kecho) ' Building modules, stage 2.';
1034 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1034 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1035 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild 1035 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
1036 1036
1037 modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) 1037 modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
1038 $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin 1038 $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin
1039 1039
1040 %/modules.builtin: include/config/auto.conf 1040 %/modules.builtin: include/config/auto.conf
1041 $(Q)$(MAKE) $(modbuiltin)=$* 1041 $(Q)$(MAKE) $(modbuiltin)=$*
1042 1042
1043 1043
1044 # Target to prepare building external modules 1044 # Target to prepare building external modules
1045 PHONY += modules_prepare 1045 PHONY += modules_prepare
1046 modules_prepare: prepare scripts 1046 modules_prepare: prepare scripts
1047 1047
1048 # Target to install modules 1048 # Target to install modules
1049 PHONY += modules_install 1049 PHONY += modules_install
1050 modules_install: _modinst_ _modinst_post 1050 modules_install: _modinst_ _modinst_post
1051 1051
1052 PHONY += _modinst_ 1052 PHONY += _modinst_
1053 _modinst_: 1053 _modinst_:
1054 @rm -rf $(MODLIB)/kernel 1054 @rm -rf $(MODLIB)/kernel
1055 @rm -f $(MODLIB)/source 1055 @rm -f $(MODLIB)/source
1056 @mkdir -p $(MODLIB)/kernel 1056 @mkdir -p $(MODLIB)/kernel
1057 @ln -s $(srctree) $(MODLIB)/source 1057 @ln -s $(srctree) $(MODLIB)/source
1058 @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ 1058 @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \
1059 rm -f $(MODLIB)/build ; \ 1059 rm -f $(MODLIB)/build ; \
1060 ln -s $(objtree) $(MODLIB)/build ; \ 1060 ln -s $(objtree) $(MODLIB)/build ; \
1061 fi 1061 fi
1062 @cp -f $(objtree)/modules.order $(MODLIB)/ 1062 @cp -f $(objtree)/modules.order $(MODLIB)/
1063 @cp -f $(objtree)/modules.builtin $(MODLIB)/ 1063 @cp -f $(objtree)/modules.builtin $(MODLIB)/
1064 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst 1064 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1065 1065
1066 # This depmod is only for convenience to give the initial 1066 # This depmod is only for convenience to give the initial
1067 # boot a modules.dep even before / is mounted read-write. However the 1067 # boot a modules.dep even before / is mounted read-write. However the
1068 # boot script depmod is the master version. 1068 # boot script depmod is the master version.
1069 PHONY += _modinst_post 1069 PHONY += _modinst_post
1070 _modinst_post: _modinst_ 1070 _modinst_post: _modinst_
1071 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst 1071 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst
1072 $(call cmd,depmod) 1072 $(call cmd,depmod)
1073 1073
1074 ifeq ($(CONFIG_MODULE_SIG), y) 1074 ifeq ($(CONFIG_MODULE_SIG), y)
1075 PHONY += modules_sign 1075 PHONY += modules_sign
1076 modules_sign: 1076 modules_sign:
1077 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign 1077 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign
1078 endif 1078 endif
1079 1079
1080 else # CONFIG_MODULES 1080 else # CONFIG_MODULES
1081 1081
1082 # Modules not configured 1082 # Modules not configured
1083 # --------------------------------------------------------------------------- 1083 # ---------------------------------------------------------------------------
1084 1084
1085 modules modules_install: FORCE 1085 modules modules_install: FORCE
1086 @echo >&2 1086 @echo >&2
1087 @echo >&2 "The present kernel configuration has modules disabled." 1087 @echo >&2 "The present kernel configuration has modules disabled."
1088 @echo >&2 "Type 'make config' and enable loadable module support." 1088 @echo >&2 "Type 'make config' and enable loadable module support."
1089 @echo >&2 "Then build a kernel with module support enabled." 1089 @echo >&2 "Then build a kernel with module support enabled."
1090 @echo >&2 1090 @echo >&2
1091 @exit 1 1091 @exit 1
1092 1092
1093 endif # CONFIG_MODULES 1093 endif # CONFIG_MODULES
1094 1094
1095 ### 1095 ###
1096 # Cleaning is done on three levels. 1096 # Cleaning is done on three levels.
1097 # make clean Delete most generated files 1097 # make clean Delete most generated files
1098 # Leave enough to build external modules 1098 # Leave enough to build external modules
1099 # make mrproper Delete the current configuration, and all generated files 1099 # make mrproper Delete the current configuration, and all generated files
1100 # make distclean Remove editor backup files, patch leftover files and the like 1100 # make distclean Remove editor backup files, patch leftover files and the like
1101 1101
1102 # Directories & files removed with 'make clean' 1102 # Directories & files removed with 'make clean'
1103 CLEAN_DIRS += $(MODVERDIR) 1103 CLEAN_DIRS += $(MODVERDIR)
1104 1104
1105 # Directories & files removed with 'make mrproper' 1105 # Directories & files removed with 'make mrproper'
1106 MRPROPER_DIRS += include/config usr/include include/generated \ 1106 MRPROPER_DIRS += include/config usr/include include/generated \
1107 arch/*/include/generated .tmp_objdiff 1107 arch/*/include/generated .tmp_objdiff
1108 MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \ 1108 MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
1109 Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 1109 Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1110 signing_key.priv signing_key.x509 x509.genkey \ 1110 signing_key.priv signing_key.x509 x509.genkey \
1111 extra_certificates signing_key.x509.keyid \ 1111 extra_certificates signing_key.x509.keyid \
1112 signing_key.x509.signer include/linux/version.h 1112 signing_key.x509.signer include/linux/version.h
1113 1113
1114 # clean - Delete most, but leave enough to build external modules 1114 # clean - Delete most, but leave enough to build external modules
1115 # 1115 #
1116 clean: rm-dirs := $(CLEAN_DIRS) 1116 clean: rm-dirs := $(CLEAN_DIRS)
1117 clean: rm-files := $(CLEAN_FILES) 1117 clean: rm-files := $(CLEAN_FILES)
1118 clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples) 1118 clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples)
1119 1119
1120 PHONY += $(clean-dirs) clean archclean vmlinuxclean 1120 PHONY += $(clean-dirs) clean archclean vmlinuxclean
1121 $(clean-dirs): 1121 $(clean-dirs):
1122 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1122 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1123 1123
1124 vmlinuxclean: 1124 vmlinuxclean:
1125 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean 1125 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean
1126 1126
1127 clean: archclean vmlinuxclean 1127 clean: archclean vmlinuxclean
1128 1128
1129 # mrproper - Delete all generated files, including .config 1129 # mrproper - Delete all generated files, including .config
1130 # 1130 #
1131 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1131 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1132 mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1132 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1133 mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) 1133 mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)
1134 1134
1135 PHONY += $(mrproper-dirs) mrproper archmrproper 1135 PHONY += $(mrproper-dirs) mrproper archmrproper
1136 $(mrproper-dirs): 1136 $(mrproper-dirs):
1137 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1137 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1138 1138
1139 mrproper: clean archmrproper $(mrproper-dirs) 1139 mrproper: clean archmrproper $(mrproper-dirs)
1140 $(call cmd,rmdirs) 1140 $(call cmd,rmdirs)
1141 $(call cmd,rmfiles) 1141 $(call cmd,rmfiles)
1142 1142
1143 # distclean 1143 # distclean
1144 # 1144 #
1145 PHONY += distclean 1145 PHONY += distclean
1146 1146
1147 distclean: mrproper 1147 distclean: mrproper
1148 @find $(srctree) $(RCS_FIND_IGNORE) \ 1148 @find $(srctree) $(RCS_FIND_IGNORE) \
1149 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1149 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1150 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1150 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1151 -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \ 1151 -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \
1152 -type f -print | xargs rm -f 1152 -type f -print | xargs rm -f
1153 1153
1154 1154
1155 # Packaging of the kernel to various formats 1155 # Packaging of the kernel to various formats
1156 # --------------------------------------------------------------------------- 1156 # ---------------------------------------------------------------------------
1157 # rpm target kept for backward compatibility 1157 # rpm target kept for backward compatibility
1158 package-dir := $(srctree)/scripts/package 1158 package-dir := $(srctree)/scripts/package
1159 1159
1160 %src-pkg: FORCE 1160 %src-pkg: FORCE
1161 $(Q)$(MAKE) $(build)=$(package-dir) $@ 1161 $(Q)$(MAKE) $(build)=$(package-dir) $@
1162 %pkg: include/config/kernel.release FORCE 1162 %pkg: include/config/kernel.release FORCE
1163 $(Q)$(MAKE) $(build)=$(package-dir) $@ 1163 $(Q)$(MAKE) $(build)=$(package-dir) $@
1164 rpm: include/config/kernel.release FORCE 1164 rpm: include/config/kernel.release FORCE
1165 $(Q)$(MAKE) $(build)=$(package-dir) $@ 1165 $(Q)$(MAKE) $(build)=$(package-dir) $@
1166 1166
1167 1167
1168 # Brief documentation of the typical targets used 1168 # Brief documentation of the typical targets used
1169 # --------------------------------------------------------------------------- 1169 # ---------------------------------------------------------------------------
1170 1170
1171 boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) 1171 boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)
1172 boards := $(notdir $(boards)) 1172 boards := $(notdir $(boards))
1173 board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) 1173 board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))
1174 board-dirs := $(sort $(notdir $(board-dirs:/=))) 1174 board-dirs := $(sort $(notdir $(board-dirs:/=)))
1175 1175
1176 help: 1176 help:
1177 @echo 'Cleaning targets:' 1177 @echo 'Cleaning targets:'
1178 @echo ' clean - Remove most generated files but keep the config and' 1178 @echo ' clean - Remove most generated files but keep the config and'
1179 @echo ' enough build support to build external modules' 1179 @echo ' enough build support to build external modules'
1180 @echo ' mrproper - Remove all generated files + config + various backup files' 1180 @echo ' mrproper - Remove all generated files + config + various backup files'
1181 @echo ' distclean - mrproper + remove editor backup and patch files' 1181 @echo ' distclean - mrproper + remove editor backup and patch files'
1182 @echo '' 1182 @echo ''
1183 @echo 'Configuration targets:' 1183 @echo 'Configuration targets:'
1184 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1184 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1185 @echo '' 1185 @echo ''
1186 @echo 'Other generic targets:' 1186 @echo 'Other generic targets:'
1187 @echo ' all - Build all targets marked with [*]' 1187 @echo ' all - Build all targets marked with [*]'
1188 @echo '* vmlinux - Build the bare kernel' 1188 @echo '* vmlinux - Build the bare kernel'
1189 @echo '* modules - Build all modules' 1189 @echo '* modules - Build all modules'
1190 @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' 1190 @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
1191 @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' 1191 @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'
1192 @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' 1192 @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
1193 @echo ' dir/ - Build all files in dir and below' 1193 @echo ' dir/ - Build all files in dir and below'
1194 @echo ' dir/file.[oisS] - Build specified target only' 1194 @echo ' dir/file.[oisS] - Build specified target only'
1195 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1195 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1196 @echo ' (requires a recent binutils and recent build (System.map))' 1196 @echo ' (requires a recent binutils and recent build (System.map))'
1197 @echo ' dir/file.ko - Build module including final link' 1197 @echo ' dir/file.ko - Build module including final link'
1198 @echo ' modules_prepare - Set up for building external modules' 1198 @echo ' modules_prepare - Set up for building external modules'
1199 @echo ' tags/TAGS - Generate tags file for editors' 1199 @echo ' tags/TAGS - Generate tags file for editors'
1200 @echo ' cscope - Generate cscope index' 1200 @echo ' cscope - Generate cscope index'
1201 @echo ' gtags - Generate GNU GLOBAL index' 1201 @echo ' gtags - Generate GNU GLOBAL index'
1202 @echo ' kernelrelease - Output the release version string' 1202 @echo ' kernelrelease - Output the release version string'
1203 @echo ' kernelversion - Output the version stored in Makefile' 1203 @echo ' kernelversion - Output the version stored in Makefile'
1204 @echo ' image_name - Output the image name' 1204 @echo ' image_name - Output the image name'
1205 @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ 1205 @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
1206 echo ' (default: $(INSTALL_HDR_PATH))'; \ 1206 echo ' (default: $(INSTALL_HDR_PATH))'; \
1207 echo '' 1207 echo ''
1208 @echo 'Static analysers' 1208 @echo 'Static analysers'
1209 @echo ' checkstack - Generate a list of stack hogs' 1209 @echo ' checkstack - Generate a list of stack hogs'
1210 @echo ' namespacecheck - Name space analysis on compiled kernel' 1210 @echo ' namespacecheck - Name space analysis on compiled kernel'
1211 @echo ' versioncheck - Sanity check on version.h usage' 1211 @echo ' versioncheck - Sanity check on version.h usage'
1212 @echo ' includecheck - Check for duplicate included header files' 1212 @echo ' includecheck - Check for duplicate included header files'
1213 @echo ' export_report - List the usages of all exported symbols' 1213 @echo ' export_report - List the usages of all exported symbols'
1214 @echo ' headers_check - Sanity check on exported headers' 1214 @echo ' headers_check - Sanity check on exported headers'
1215 @echo ' headerdep - Detect inclusion cycles in headers' 1215 @echo ' headerdep - Detect inclusion cycles in headers'
1216 @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help 1216 @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help
1217 @echo '' 1217 @echo ''
1218 @echo 'Kernel packaging:' 1218 @echo 'Kernel packaging:'
1219 @$(MAKE) $(build)=$(package-dir) help 1219 @$(MAKE) $(build)=$(package-dir) help
1220 @echo '' 1220 @echo ''
1221 @echo 'Documentation targets:' 1221 @echo 'Documentation targets:'
1222 @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp 1222 @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
1223 @echo '' 1223 @echo ''
1224 @echo 'Architecture specific targets ($(SRCARCH)):' 1224 @echo 'Architecture specific targets ($(SRCARCH)):'
1225 @$(if $(archhelp),$(archhelp),\ 1225 @$(if $(archhelp),$(archhelp),\
1226 echo ' No architecture specific help defined for $(SRCARCH)') 1226 echo ' No architecture specific help defined for $(SRCARCH)')
1227 @echo '' 1227 @echo ''
1228 @$(if $(boards), \ 1228 @$(if $(boards), \
1229 $(foreach b, $(boards), \ 1229 $(foreach b, $(boards), \
1230 printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ 1230 printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \
1231 echo '') 1231 echo '')
1232 @$(if $(board-dirs), \ 1232 @$(if $(board-dirs), \
1233 $(foreach b, $(board-dirs), \ 1233 $(foreach b, $(board-dirs), \
1234 printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ 1234 printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \
1235 printf " %-16s - Show all of the above\\n" help-boards; \ 1235 printf " %-16s - Show all of the above\\n" help-boards; \
1236 echo '') 1236 echo '')
1237 1237
1238 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1238 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1239 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1239 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1240 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1240 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1241 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1241 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1242 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1242 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1243 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1243 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1244 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1244 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1245 @echo ' 1: warnings which may be relevant and do not occur too often' 1245 @echo ' 1: warnings which may be relevant and do not occur too often'
1246 @echo ' 2: warnings which occur quite often but may still be relevant' 1246 @echo ' 2: warnings which occur quite often but may still be relevant'
1247 @echo ' 3: more obscure warnings, can most likely be ignored' 1247 @echo ' 3: more obscure warnings, can most likely be ignored'
1248 @echo ' Multiple levels can be combined with W=12 or W=123' 1248 @echo ' Multiple levels can be combined with W=12 or W=123'
1249 @echo '' 1249 @echo ''
1250 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1250 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1251 @echo 'For further info see the ./README file' 1251 @echo 'For further info see the ./README file'
1252 1252
1253 1253
1254 help-board-dirs := $(addprefix help-,$(board-dirs)) 1254 help-board-dirs := $(addprefix help-,$(board-dirs))
1255 1255
1256 help-boards: $(help-board-dirs) 1256 help-boards: $(help-board-dirs)
1257 1257
1258 boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) 1258 boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))
1259 1259
1260 $(help-board-dirs): help-%: 1260 $(help-board-dirs): help-%:
1261 @echo 'Architecture specific targets ($(SRCARCH) $*):' 1261 @echo 'Architecture specific targets ($(SRCARCH) $*):'
1262 @$(if $(boards-per-dir), \ 1262 @$(if $(boards-per-dir), \
1263 $(foreach b, $(boards-per-dir), \ 1263 $(foreach b, $(boards-per-dir), \
1264 printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ 1264 printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \
1265 echo '') 1265 echo '')
1266 1266
1267 1267
1268 # Documentation targets 1268 # Documentation targets
1269 # --------------------------------------------------------------------------- 1269 # ---------------------------------------------------------------------------
1270 %docs: scripts_basic FORCE 1270 %docs: scripts_basic FORCE
1271 $(Q)$(MAKE) $(build)=scripts build_docproc 1271 $(Q)$(MAKE) $(build)=scripts build_docproc
1272 $(Q)$(MAKE) $(build)=Documentation/DocBook $@ 1272 $(Q)$(MAKE) $(build)=Documentation/DocBook $@
1273 1273
1274 else # KBUILD_EXTMOD 1274 else # KBUILD_EXTMOD
1275 1275
1276 ### 1276 ###
1277 # External module support. 1277 # External module support.
1278 # When building external modules the kernel used as basis is considered 1278 # When building external modules the kernel used as basis is considered
1279 # read-only, and no consistency checks are made and the make 1279 # read-only, and no consistency checks are made and the make
1280 # system is not used on the basis kernel. If updates are required 1280 # system is not used on the basis kernel. If updates are required
1281 # in the basis kernel ordinary make commands (without M=...) must 1281 # in the basis kernel ordinary make commands (without M=...) must
1282 # be used. 1282 # be used.
1283 # 1283 #
1284 # The following are the only valid targets when building external 1284 # The following are the only valid targets when building external
1285 # modules. 1285 # modules.
1286 # make M=dir clean Delete all automatically generated files 1286 # make M=dir clean Delete all automatically generated files
1287 # make M=dir modules Make all modules in specified dir 1287 # make M=dir modules Make all modules in specified dir
1288 # make M=dir Same as 'make M=dir modules' 1288 # make M=dir Same as 'make M=dir modules'
1289 # make M=dir modules_install 1289 # make M=dir modules_install
1290 # Install the modules built in the module directory 1290 # Install the modules built in the module directory
1291 # Assumes install directory is already created 1291 # Assumes install directory is already created
1292 1292
1293 # We are always building modules 1293 # We are always building modules
1294 KBUILD_MODULES := 1 1294 KBUILD_MODULES := 1
1295 PHONY += crmodverdir 1295 PHONY += crmodverdir
1296 crmodverdir: 1296 crmodverdir:
1297 $(cmd_crmodverdir) 1297 $(cmd_crmodverdir)
1298 1298
1299 PHONY += $(objtree)/Module.symvers 1299 PHONY += $(objtree)/Module.symvers
1300 $(objtree)/Module.symvers: 1300 $(objtree)/Module.symvers:
1301 @test -e $(objtree)/Module.symvers || ( \ 1301 @test -e $(objtree)/Module.symvers || ( \
1302 echo; \ 1302 echo; \
1303 echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ 1303 echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \
1304 echo " is missing; modules will have no dependencies and modversions."; \ 1304 echo " is missing; modules will have no dependencies and modversions."; \
1305 echo ) 1305 echo )
1306 1306
1307 module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) 1307 module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
1308 PHONY += $(module-dirs) modules 1308 PHONY += $(module-dirs) modules
1309 $(module-dirs): crmodverdir $(objtree)/Module.symvers 1309 $(module-dirs): crmodverdir $(objtree)/Module.symvers
1310 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) 1310 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
1311 1311
1312 modules: $(module-dirs) 1312 modules: $(module-dirs)
1313 @$(kecho) ' Building modules, stage 2.'; 1313 @$(kecho) ' Building modules, stage 2.';
1314 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1314 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1315 1315
1316 PHONY += modules_install 1316 PHONY += modules_install
1317 modules_install: _emodinst_ _emodinst_post 1317 modules_install: _emodinst_ _emodinst_post
1318 1318
1319 install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) 1319 install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
1320 PHONY += _emodinst_ 1320 PHONY += _emodinst_
1321 _emodinst_: 1321 _emodinst_:
1322 $(Q)mkdir -p $(MODLIB)/$(install-dir) 1322 $(Q)mkdir -p $(MODLIB)/$(install-dir)
1323 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst 1323 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1324 1324
1325 PHONY += _emodinst_post 1325 PHONY += _emodinst_post
1326 _emodinst_post: _emodinst_ 1326 _emodinst_post: _emodinst_
1327 $(call cmd,depmod) 1327 $(call cmd,depmod)
1328 1328
1329 clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) 1329 clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
1330 1330
1331 PHONY += $(clean-dirs) clean 1331 PHONY += $(clean-dirs) clean
1332 $(clean-dirs): 1332 $(clean-dirs):
1333 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1333 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1334 1334
1335 clean: rm-dirs := $(MODVERDIR) 1335 clean: rm-dirs := $(MODVERDIR)
1336 clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers 1336 clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers
1337 1337
1338 help: 1338 help:
1339 @echo ' Building external modules.' 1339 @echo ' Building external modules.'
1340 @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' 1340 @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'
1341 @echo '' 1341 @echo ''
1342 @echo ' modules - default target, build the module(s)' 1342 @echo ' modules - default target, build the module(s)'
1343 @echo ' modules_install - install the module' 1343 @echo ' modules_install - install the module'
1344 @echo ' clean - remove generated files in module directory only' 1344 @echo ' clean - remove generated files in module directory only'
1345 @echo '' 1345 @echo ''
1346 1346
1347 # Dummies... 1347 # Dummies...
1348 PHONY += prepare scripts 1348 PHONY += prepare scripts
1349 prepare: ; 1349 prepare: ;
1350 scripts: ; 1350 scripts: ;
1351 endif # KBUILD_EXTMOD 1351 endif # KBUILD_EXTMOD
1352 1352
1353 clean: $(clean-dirs) 1353 clean: $(clean-dirs)
1354 $(call cmd,rmdirs) 1354 $(call cmd,rmdirs)
1355 $(call cmd,rmfiles) 1355 $(call cmd,rmfiles)
1356 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1356 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1357 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1357 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1358 -o -name '*.ko.*' \ 1358 -o -name '*.ko.*' \
1359 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1359 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1360 -o -name '*.symtypes' -o -name 'modules.order' \ 1360 -o -name '*.symtypes' -o -name 'modules.order' \
1361 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1361 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1362 -o -name '*.gcno' \) -type f -print | xargs rm -f 1362 -o -name '*.gcno' \) -type f -print | xargs rm -f
1363 1363
1364 # Generate tags for editors 1364 # Generate tags for editors
1365 # --------------------------------------------------------------------------- 1365 # ---------------------------------------------------------------------------
1366 quiet_cmd_tags = GEN $@ 1366 quiet_cmd_tags = GEN $@
1367 cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ 1367 cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@
1368 1368
1369 tags TAGS cscope gtags: FORCE 1369 tags TAGS cscope gtags: FORCE
1370 $(call cmd,tags) 1370 $(call cmd,tags)
1371 1371
1372 # Scripts to check various things for consistency 1372 # Scripts to check various things for consistency
1373 # --------------------------------------------------------------------------- 1373 # ---------------------------------------------------------------------------
1374 1374
1375 PHONY += includecheck versioncheck coccicheck namespacecheck export_report 1375 PHONY += includecheck versioncheck coccicheck namespacecheck export_report
1376 1376
1377 includecheck: 1377 includecheck:
1378 find $(srctree)/* $(RCS_FIND_IGNORE) \ 1378 find $(srctree)/* $(RCS_FIND_IGNORE) \
1379 -name '*.[hcS]' -type f -print | sort \ 1379 -name '*.[hcS]' -type f -print | sort \
1380 | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl 1380 | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
1381 1381
1382 versioncheck: 1382 versioncheck:
1383 find $(srctree)/* $(RCS_FIND_IGNORE) \ 1383 find $(srctree)/* $(RCS_FIND_IGNORE) \
1384 -name '*.[hcS]' -type f -print | sort \ 1384 -name '*.[hcS]' -type f -print | sort \
1385 | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl 1385 | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
1386 1386
1387 coccicheck: 1387 coccicheck:
1388 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 1388 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1389 1389
1390 namespacecheck: 1390 namespacecheck:
1391 $(PERL) $(srctree)/scripts/namespace.pl 1391 $(PERL) $(srctree)/scripts/namespace.pl
1392 1392
1393 export_report: 1393 export_report:
1394 $(PERL) $(srctree)/scripts/export_report.pl 1394 $(PERL) $(srctree)/scripts/export_report.pl
1395 1395
1396 endif #ifeq ($(config-targets),1) 1396 endif #ifeq ($(config-targets),1)
1397 endif #ifeq ($(mixed-targets),1) 1397 endif #ifeq ($(mixed-targets),1)
1398 1398
1399 PHONY += checkstack kernelrelease kernelversion image_name 1399 PHONY += checkstack kernelrelease kernelversion image_name
1400 1400
1401 # UML needs a little special treatment here. It wants to use the host 1401 # UML needs a little special treatment here. It wants to use the host
1402 # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone 1402 # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone
1403 # else wants $(ARCH), including people doing cross-builds, which means 1403 # else wants $(ARCH), including people doing cross-builds, which means
1404 # that $(SUBARCH) doesn't work here. 1404 # that $(SUBARCH) doesn't work here.
1405 ifeq ($(ARCH), um) 1405 ifeq ($(ARCH), um)
1406 CHECKSTACK_ARCH := $(SUBARCH) 1406 CHECKSTACK_ARCH := $(SUBARCH)
1407 else 1407 else
1408 CHECKSTACK_ARCH := $(ARCH) 1408 CHECKSTACK_ARCH := $(ARCH)
1409 endif 1409 endif
1410 checkstack: 1410 checkstack:
1411 $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ 1411 $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
1412 $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) 1412 $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
1413 1413
1414 kernelrelease: 1414 kernelrelease:
1415 @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1415 @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1416 1416
1417 kernelversion: 1417 kernelversion:
1418 @echo $(KERNELVERSION) 1418 @echo $(KERNELVERSION)
1419 1419
1420 image_name: 1420 image_name:
1421 @echo $(KBUILD_IMAGE) 1421 @echo $(KBUILD_IMAGE)
1422 1422
1423 # Clear a bunch of variables before executing the submake 1423 # Clear a bunch of variables before executing the submake
1424 tools/: FORCE 1424 tools/: FORCE
1425 $(Q)mkdir -p $(objtree)/tools 1425 $(Q)mkdir -p $(objtree)/tools
1426 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ 1426 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/
1427 1427
1428 tools/%: FORCE 1428 tools/%: FORCE
1429 $(Q)mkdir -p $(objtree)/tools 1429 $(Q)mkdir -p $(objtree)/tools
1430 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $* 1430 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $*
1431 1431
1432 # Single targets 1432 # Single targets
1433 # --------------------------------------------------------------------------- 1433 # ---------------------------------------------------------------------------
1434 # Single targets are compatible with: 1434 # Single targets are compatible with:
1435 # - build with mixed source and output 1435 # - build with mixed source and output
1436 # - build with separate output dir 'make O=...' 1436 # - build with separate output dir 'make O=...'
1437 # - external modules 1437 # - external modules
1438 # 1438 #
1439 # target-dir => where to store outputfile 1439 # target-dir => where to store outputfile
1440 # build-dir => directory in kernel source tree to use 1440 # build-dir => directory in kernel source tree to use
1441 1441
1442 ifeq ($(KBUILD_EXTMOD),) 1442 ifeq ($(KBUILD_EXTMOD),)
1443 build-dir = $(patsubst %/,%,$(dir $@)) 1443 build-dir = $(patsubst %/,%,$(dir $@))
1444 target-dir = $(dir $@) 1444 target-dir = $(dir $@)
1445 else 1445 else
1446 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1446 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1447 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1447 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1448 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1448 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1449 endif 1449 endif
1450 1450
1451 %.s: %.c prepare scripts FORCE 1451 %.s: %.c prepare scripts FORCE
1452 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1452 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1453 %.i: %.c prepare scripts FORCE 1453 %.i: %.c prepare scripts FORCE
1454 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1454 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1455 %.o: %.c prepare scripts FORCE 1455 %.o: %.c prepare scripts FORCE
1456 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1456 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1457 %.lst: %.c prepare scripts FORCE 1457 %.lst: %.c prepare scripts FORCE
1458 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1458 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1459 %.s: %.S prepare scripts FORCE 1459 %.s: %.S prepare scripts FORCE
1460 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1460 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1461 %.o: %.S prepare scripts FORCE 1461 %.o: %.S prepare scripts FORCE
1462 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1462 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1463 %.symtypes: %.c prepare scripts FORCE 1463 %.symtypes: %.c prepare scripts FORCE
1464 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1464 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1465 1465
1466 # Modules 1466 # Modules
1467 /: prepare scripts FORCE 1467 /: prepare scripts FORCE
1468 $(cmd_crmodverdir) 1468 $(cmd_crmodverdir)
1469 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1469 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1470 $(build)=$(build-dir) 1470 $(build)=$(build-dir)
1471 %/: prepare scripts FORCE 1471 %/: prepare scripts FORCE
1472 $(cmd_crmodverdir) 1472 $(cmd_crmodverdir)
1473 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1473 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1474 $(build)=$(build-dir) 1474 $(build)=$(build-dir)
1475 %.ko: prepare scripts FORCE 1475 %.ko: prepare scripts FORCE
1476 $(cmd_crmodverdir) 1476 $(cmd_crmodverdir)
1477 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1477 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1478 $(build)=$(build-dir) $(@:.ko=.o) 1478 $(build)=$(build-dir) $(@:.ko=.o)
1479 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1479 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1480 1480
1481 # FIXME Should go into a make.lib or something 1481 # FIXME Should go into a make.lib or something
1482 # =========================================================================== 1482 # ===========================================================================
1483 1483
1484 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1484 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1485 cmd_rmdirs = rm -rf $(rm-dirs) 1485 cmd_rmdirs = rm -rf $(rm-dirs)
1486 1486
1487 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1487 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1488 cmd_rmfiles = rm -f $(rm-files) 1488 cmd_rmfiles = rm -f $(rm-files)
1489 1489
1490 # Run depmod only if we have System.map and depmod is executable 1490 # Run depmod only if we have System.map and depmod is executable
1491 quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) 1491 quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)
1492 cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ 1492 cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \
1493 $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))" 1493 $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))"
1494 1494
1495 # Create temporary dir for module support files 1495 # Create temporary dir for module support files
1496 # clean it up only when building all modules 1496 # clean it up only when building all modules
1497 cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ 1497 cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
1498 $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) 1498 $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
1499 1499
1500 # read all saved command lines 1500 # read all saved command lines
1501 1501
1502 targets := $(wildcard $(sort $(targets))) 1502 targets := $(wildcard $(sort $(targets)))
1503 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1503 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1504 1504
1505 ifneq ($(cmd_files),) 1505 ifneq ($(cmd_files),)
1506 $(cmd_files): ; # Do not try to update included dependency files 1506 $(cmd_files): ; # Do not try to update included dependency files
1507 include $(cmd_files) 1507 include $(cmd_files)
1508 endif 1508 endif
1509 1509
1510 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1510 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1511 # Usage: 1511 # Usage:
1512 # $(Q)$(MAKE) $(clean)=dir 1512 # $(Q)$(MAKE) $(clean)=dir
1513 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj 1513 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
1514 1514
1515 endif # skip-makefile 1515 endif # skip-makefile
1516 1516
1517 PHONY += FORCE 1517 PHONY += FORCE
1518 FORCE: 1518 FORCE:
1519 1519
1520 # Declare the contents of the .PHONY variable as phony. We keep that 1520 # Declare the contents of the .PHONY variable as phony. We keep that
1521 # information in a variable so we can use it in if_changed and friends. 1521 # information in a variable so we can use it in if_changed and friends.
1522 .PHONY: $(PHONY) 1522 .PHONY: $(PHONY)
1523 1523