Eric Lee / smarc-ti-linux-kernel

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Commit 9a3c4145af32125c5ee39c0272662b47307a8323

Authored by Linus Torvalds
1 parent b7a68369ea
Exists in ti-lsk-linux-4.1.y and in 10 other branches dlt-processor-sdk-linux-03.00.00.04, processor-sdk-linux-02.00.01, 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

Linux 3.16-rc6

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

1 VERSION = 3 1 VERSION = 3
2 PATCHLEVEL = 16 2 PATCHLEVEL = 16
3 SUBLEVEL = 0 3 SUBLEVEL = 0
4 EXTRAVERSION = -rc5 4 EXTRAVERSION = -rc6
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 # Beautify output 44 # Beautify output
45 # --------------------------------------------------------------------------- 45 # ---------------------------------------------------------------------------
46 # 46 #
47 # Normally, we echo the whole command before executing it. By making 47 # Normally, we echo the whole command before executing it. By making
48 # that echo $($(quiet)$(cmd)), we now have the possibility to set 48 # that echo $($(quiet)$(cmd)), we now have the possibility to set
49 # $(quiet) to choose other forms of output instead, e.g. 49 # $(quiet) to choose other forms of output instead, e.g.
50 # 50 #
51 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 51 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
52 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 52 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
53 # 53 #
54 # If $(quiet) is empty, the whole command will be printed. 54 # If $(quiet) is empty, the whole command will be printed.
55 # If it is set to "quiet_", only the short version will be printed. 55 # If it is set to "quiet_", only the short version will be printed.
56 # If it is set to "silent_", nothing will be printed at all, since 56 # If it is set to "silent_", nothing will be printed at all, since
57 # the variable $(silent_cmd_cc_o_c) doesn't exist. 57 # the variable $(silent_cmd_cc_o_c) doesn't exist.
58 # 58 #
59 # A simple variant is to prefix commands with $(Q) - that's useful 59 # A simple variant is to prefix commands with $(Q) - that's useful
60 # for commands that shall be hidden in non-verbose mode. 60 # for commands that shall be hidden in non-verbose mode.
61 # 61 #
62 # $(Q)ln $@ :< 62 # $(Q)ln $@ :<
63 # 63 #
64 # If KBUILD_VERBOSE equals 0 then the above command will be hidden. 64 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
65 # If KBUILD_VERBOSE equals 1 then the above command is displayed. 65 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
66 # 66 #
67 # To put more focus on warnings, be less verbose as default 67 # To put more focus on warnings, be less verbose as default
68 # Use 'make V=1' to see the full commands 68 # Use 'make V=1' to see the full commands
69 69
70 ifeq ("$(origin V)", "command line") 70 ifeq ("$(origin V)", "command line")
71 KBUILD_VERBOSE = $(V) 71 KBUILD_VERBOSE = $(V)
72 endif 72 endif
73 ifndef KBUILD_VERBOSE 73 ifndef KBUILD_VERBOSE
74 KBUILD_VERBOSE = 0 74 KBUILD_VERBOSE = 0
75 endif 75 endif
76 76
77 ifeq ($(KBUILD_VERBOSE),1) 77 ifeq ($(KBUILD_VERBOSE),1)
78 quiet = 78 quiet =
79 Q = 79 Q =
80 else 80 else
81 quiet=quiet_ 81 quiet=quiet_
82 Q = @ 82 Q = @
83 endif 83 endif
84 84
85 # If the user is running make -s (silent mode), suppress echoing of 85 # If the user is running make -s (silent mode), suppress echoing of
86 # commands 86 # commands
87 87
88 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 88 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
89 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) 89 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
90 quiet=silent_ 90 quiet=silent_
91 endif 91 endif
92 else # make-3.8x 92 else # make-3.8x
93 ifneq ($(filter s% -s%,$(MAKEFLAGS)),) 93 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
94 quiet=silent_ 94 quiet=silent_
95 endif 95 endif
96 endif 96 endif
97 97
98 export quiet Q KBUILD_VERBOSE 98 export quiet Q KBUILD_VERBOSE
99 99
100 # Call a source code checker (by default, "sparse") as part of the 100 # Call a source code checker (by default, "sparse") as part of the
101 # C compilation. 101 # C compilation.
102 # 102 #
103 # Use 'make C=1' to enable checking of only re-compiled files. 103 # Use 'make C=1' to enable checking of only re-compiled files.
104 # Use 'make C=2' to enable checking of *all* source files, regardless 104 # Use 'make C=2' to enable checking of *all* source files, regardless
105 # of whether they are re-compiled or not. 105 # of whether they are re-compiled or not.
106 # 106 #
107 # See the file "Documentation/sparse.txt" for more details, including 107 # See the file "Documentation/sparse.txt" for more details, including
108 # where to get the "sparse" utility. 108 # where to get the "sparse" utility.
109 109
110 ifeq ("$(origin C)", "command line") 110 ifeq ("$(origin C)", "command line")
111 KBUILD_CHECKSRC = $(C) 111 KBUILD_CHECKSRC = $(C)
112 endif 112 endif
113 ifndef KBUILD_CHECKSRC 113 ifndef KBUILD_CHECKSRC
114 KBUILD_CHECKSRC = 0 114 KBUILD_CHECKSRC = 0
115 endif 115 endif
116 116
117 # Use make M=dir to specify directory of external module to build 117 # Use make M=dir to specify directory of external module to build
118 # Old syntax make ... SUBDIRS=$PWD is still supported 118 # Old syntax make ... SUBDIRS=$PWD is still supported
119 # Setting the environment variable KBUILD_EXTMOD take precedence 119 # Setting the environment variable KBUILD_EXTMOD take precedence
120 ifdef SUBDIRS 120 ifdef SUBDIRS
121 KBUILD_EXTMOD ?= $(SUBDIRS) 121 KBUILD_EXTMOD ?= $(SUBDIRS)
122 endif 122 endif
123 123
124 ifeq ("$(origin M)", "command line") 124 ifeq ("$(origin M)", "command line")
125 KBUILD_EXTMOD := $(M) 125 KBUILD_EXTMOD := $(M)
126 endif 126 endif
127 127
128 # kbuild supports saving output files in a separate directory. 128 # kbuild supports saving output files in a separate directory.
129 # To locate output files in a separate directory two syntaxes are supported. 129 # To locate output files in a separate directory two syntaxes are supported.
130 # In both cases the working directory must be the root of the kernel src. 130 # In both cases the working directory must be the root of the kernel src.
131 # 1) O= 131 # 1) O=
132 # Use "make O=dir/to/store/output/files/" 132 # Use "make O=dir/to/store/output/files/"
133 # 133 #
134 # 2) Set KBUILD_OUTPUT 134 # 2) Set KBUILD_OUTPUT
135 # Set the environment variable KBUILD_OUTPUT to point to the directory 135 # Set the environment variable KBUILD_OUTPUT to point to the directory
136 # where the output files shall be placed. 136 # where the output files shall be placed.
137 # export KBUILD_OUTPUT=dir/to/store/output/files/ 137 # export KBUILD_OUTPUT=dir/to/store/output/files/
138 # make 138 # make
139 # 139 #
140 # The O= assignment takes precedence over the KBUILD_OUTPUT environment 140 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
141 # variable. 141 # variable.
142 142
143 143
144 # KBUILD_SRC is set on invocation of make in OBJ directory 144 # KBUILD_SRC is set on invocation of make in OBJ directory
145 # KBUILD_SRC is not intended to be used by the regular user (for now) 145 # KBUILD_SRC is not intended to be used by the regular user (for now)
146 ifeq ($(KBUILD_SRC),) 146 ifeq ($(KBUILD_SRC),)
147 147
148 # OK, Make called in directory where kernel src resides 148 # OK, Make called in directory where kernel src resides
149 # Do we want to locate output files in a separate directory? 149 # Do we want to locate output files in a separate directory?
150 ifeq ("$(origin O)", "command line") 150 ifeq ("$(origin O)", "command line")
151 KBUILD_OUTPUT := $(O) 151 KBUILD_OUTPUT := $(O)
152 endif 152 endif
153 153
154 # That's our default target when none is given on the command line 154 # That's our default target when none is given on the command line
155 PHONY := _all 155 PHONY := _all
156 _all: 156 _all:
157 157
158 # Cancel implicit rules on top Makefile 158 # Cancel implicit rules on top Makefile
159 $(CURDIR)/Makefile Makefile: ; 159 $(CURDIR)/Makefile Makefile: ;
160 160
161 ifneq ($(KBUILD_OUTPUT),) 161 ifneq ($(KBUILD_OUTPUT),)
162 # Invoke a second make in the output directory, passing relevant variables 162 # Invoke a second make in the output directory, passing relevant variables
163 # check that the output directory actually exists 163 # check that the output directory actually exists
164 saved-output := $(KBUILD_OUTPUT) 164 saved-output := $(KBUILD_OUTPUT)
165 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 165 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
166 && /bin/pwd) 166 && /bin/pwd)
167 $(if $(KBUILD_OUTPUT),, \ 167 $(if $(KBUILD_OUTPUT),, \
168 $(error failed to create output directory "$(saved-output)")) 168 $(error failed to create output directory "$(saved-output)"))
169 169
170 PHONY += $(MAKECMDGOALS) sub-make 170 PHONY += $(MAKECMDGOALS) sub-make
171 171
172 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 172 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
173 @: 173 @:
174 174
175 # Fake the "Entering directory" message once, so that IDEs/editors are 175 # Fake the "Entering directory" message once, so that IDEs/editors are
176 # able to understand relative filenames. 176 # able to understand relative filenames.
177 echodir := @echo 177 echodir := @echo
178 quiet_echodir := @echo 178 quiet_echodir := @echo
179 silent_echodir := @: 179 silent_echodir := @:
180 sub-make: FORCE 180 sub-make: FORCE
181 $($(quiet)echodir) "make[1]: Entering directory \`$(KBUILD_OUTPUT)'" 181 $($(quiet)echodir) "make[1]: Entering directory \`$(KBUILD_OUTPUT)'"
182 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ 182 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
183 KBUILD_SRC=$(CURDIR) \ 183 KBUILD_SRC=$(CURDIR) \
184 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ 184 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
185 $(filter-out _all sub-make,$(MAKECMDGOALS)) 185 $(filter-out _all sub-make,$(MAKECMDGOALS))
186 186
187 # Leave processing to above invocation of make 187 # Leave processing to above invocation of make
188 skip-makefile := 1 188 skip-makefile := 1
189 endif # ifneq ($(KBUILD_OUTPUT),) 189 endif # ifneq ($(KBUILD_OUTPUT),)
190 endif # ifeq ($(KBUILD_SRC),) 190 endif # ifeq ($(KBUILD_SRC),)
191 191
192 # We process the rest of the Makefile if this is the final invocation of make 192 # We process the rest of the Makefile if this is the final invocation of make
193 ifeq ($(skip-makefile),) 193 ifeq ($(skip-makefile),)
194 194
195 # If building an external module we do not care about the all: rule 195 # If building an external module we do not care about the all: rule
196 # but instead _all depend on modules 196 # but instead _all depend on modules
197 PHONY += all 197 PHONY += all
198 ifeq ($(KBUILD_EXTMOD),) 198 ifeq ($(KBUILD_EXTMOD),)
199 _all: all 199 _all: all
200 else 200 else
201 _all: modules 201 _all: modules
202 endif 202 endif
203 203
204 ifeq ($(KBUILD_SRC),) 204 ifeq ($(KBUILD_SRC),)
205 # building in the source tree 205 # building in the source tree
206 srctree := . 206 srctree := .
207 else 207 else
208 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 208 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
209 # building in a subdirectory of the source tree 209 # building in a subdirectory of the source tree
210 srctree := .. 210 srctree := ..
211 else 211 else
212 srctree := $(KBUILD_SRC) 212 srctree := $(KBUILD_SRC)
213 endif 213 endif
214 endif 214 endif
215 objtree := . 215 objtree := .
216 src := $(srctree) 216 src := $(srctree)
217 obj := $(objtree) 217 obj := $(objtree)
218 218
219 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 219 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
220 220
221 export srctree objtree VPATH 221 export srctree objtree VPATH
222 222
223 223
224 # SUBARCH tells the usermode build what the underlying arch is. That is set 224 # SUBARCH tells the usermode build what the underlying arch is. That is set
225 # first, and if a usermode build is happening, the "ARCH=um" on the command 225 # first, and if a usermode build is happening, the "ARCH=um" on the command
226 # line overrides the setting of ARCH below. If a native build is happening, 226 # line overrides the setting of ARCH below. If a native build is happening,
227 # then ARCH is assigned, getting whatever value it gets normally, and 227 # then ARCH is assigned, getting whatever value it gets normally, and
228 # SUBARCH is subsequently ignored. 228 # SUBARCH is subsequently ignored.
229 229
230 SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ 230 SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
231 -e s/sun4u/sparc64/ \ 231 -e s/sun4u/sparc64/ \
232 -e s/arm.*/arm/ -e s/sa110/arm/ \ 232 -e s/arm.*/arm/ -e s/sa110/arm/ \
233 -e s/s390x/s390/ -e s/parisc64/parisc/ \ 233 -e s/s390x/s390/ -e s/parisc64/parisc/ \
234 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ 234 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
235 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ ) 235 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
236 236
237 # Cross compiling and selecting different set of gcc/bin-utils 237 # Cross compiling and selecting different set of gcc/bin-utils
238 # --------------------------------------------------------------------------- 238 # ---------------------------------------------------------------------------
239 # 239 #
240 # When performing cross compilation for other architectures ARCH shall be set 240 # When performing cross compilation for other architectures ARCH shall be set
241 # to the target architecture. (See arch/* for the possibilities). 241 # to the target architecture. (See arch/* for the possibilities).
242 # ARCH can be set during invocation of make: 242 # ARCH can be set during invocation of make:
243 # make ARCH=ia64 243 # make ARCH=ia64
244 # Another way is to have ARCH set in the environment. 244 # Another way is to have ARCH set in the environment.
245 # The default ARCH is the host where make is executed. 245 # The default ARCH is the host where make is executed.
246 246
247 # CROSS_COMPILE specify the prefix used for all executables used 247 # CROSS_COMPILE specify the prefix used for all executables used
248 # during compilation. Only gcc and related bin-utils executables 248 # during compilation. Only gcc and related bin-utils executables
249 # are prefixed with $(CROSS_COMPILE). 249 # are prefixed with $(CROSS_COMPILE).
250 # CROSS_COMPILE can be set on the command line 250 # CROSS_COMPILE can be set on the command line
251 # make CROSS_COMPILE=ia64-linux- 251 # make CROSS_COMPILE=ia64-linux-
252 # Alternatively CROSS_COMPILE can be set in the environment. 252 # Alternatively CROSS_COMPILE can be set in the environment.
253 # A third alternative is to store a setting in .config so that plain 253 # A third alternative is to store a setting in .config so that plain
254 # "make" in the configured kernel build directory always uses that. 254 # "make" in the configured kernel build directory always uses that.
255 # Default value for CROSS_COMPILE is not to prefix executables 255 # Default value for CROSS_COMPILE is not to prefix executables
256 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile 256 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
257 ARCH ?= $(SUBARCH) 257 ARCH ?= $(SUBARCH)
258 CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) 258 CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)
259 259
260 # Architecture as present in compile.h 260 # Architecture as present in compile.h
261 UTS_MACHINE := $(ARCH) 261 UTS_MACHINE := $(ARCH)
262 SRCARCH := $(ARCH) 262 SRCARCH := $(ARCH)
263 263
264 # Additional ARCH settings for x86 264 # Additional ARCH settings for x86
265 ifeq ($(ARCH),i386) 265 ifeq ($(ARCH),i386)
266 SRCARCH := x86 266 SRCARCH := x86
267 endif 267 endif
268 ifeq ($(ARCH),x86_64) 268 ifeq ($(ARCH),x86_64)
269 SRCARCH := x86 269 SRCARCH := x86
270 endif 270 endif
271 271
272 # Additional ARCH settings for sparc 272 # Additional ARCH settings for sparc
273 ifeq ($(ARCH),sparc32) 273 ifeq ($(ARCH),sparc32)
274 SRCARCH := sparc 274 SRCARCH := sparc
275 endif 275 endif
276 ifeq ($(ARCH),sparc64) 276 ifeq ($(ARCH),sparc64)
277 SRCARCH := sparc 277 SRCARCH := sparc
278 endif 278 endif
279 279
280 # Additional ARCH settings for sh 280 # Additional ARCH settings for sh
281 ifeq ($(ARCH),sh64) 281 ifeq ($(ARCH),sh64)
282 SRCARCH := sh 282 SRCARCH := sh
283 endif 283 endif
284 284
285 # Additional ARCH settings for tile 285 # Additional ARCH settings for tile
286 ifeq ($(ARCH),tilepro) 286 ifeq ($(ARCH),tilepro)
287 SRCARCH := tile 287 SRCARCH := tile
288 endif 288 endif
289 ifeq ($(ARCH),tilegx) 289 ifeq ($(ARCH),tilegx)
290 SRCARCH := tile 290 SRCARCH := tile
291 endif 291 endif
292 292
293 # Where to locate arch specific headers 293 # Where to locate arch specific headers
294 hdr-arch := $(SRCARCH) 294 hdr-arch := $(SRCARCH)
295 295
296 KCONFIG_CONFIG ?= .config 296 KCONFIG_CONFIG ?= .config
297 export KCONFIG_CONFIG 297 export KCONFIG_CONFIG
298 298
299 # SHELL used by kbuild 299 # SHELL used by kbuild
300 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 300 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
301 else if [ -x /bin/bash ]; then echo /bin/bash; \ 301 else if [ -x /bin/bash ]; then echo /bin/bash; \
302 else echo sh; fi ; fi) 302 else echo sh; fi ; fi)
303 303
304 HOSTCC = gcc 304 HOSTCC = gcc
305 HOSTCXX = g++ 305 HOSTCXX = g++
306 HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer 306 HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
307 HOSTCXXFLAGS = -O2 307 HOSTCXXFLAGS = -O2
308 308
309 ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1) 309 ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
310 HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \ 310 HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \
311 -Wno-missing-field-initializers -fno-delete-null-pointer-checks 311 -Wno-missing-field-initializers -fno-delete-null-pointer-checks
312 endif 312 endif
313 313
314 # Decide whether to build built-in, modular, or both. 314 # Decide whether to build built-in, modular, or both.
315 # Normally, just do built-in. 315 # Normally, just do built-in.
316 316
317 KBUILD_MODULES := 317 KBUILD_MODULES :=
318 KBUILD_BUILTIN := 1 318 KBUILD_BUILTIN := 1
319 319
320 # If we have only "make modules", don't compile built-in objects. 320 # If we have only "make modules", don't compile built-in objects.
321 # When we're building modules with modversions, we need to consider 321 # When we're building modules with modversions, we need to consider
322 # the built-in objects during the descend as well, in order to 322 # the built-in objects during the descend as well, in order to
323 # make sure the checksums are up to date before we record them. 323 # make sure the checksums are up to date before we record them.
324 324
325 ifeq ($(MAKECMDGOALS),modules) 325 ifeq ($(MAKECMDGOALS),modules)
326 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 326 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
327 endif 327 endif
328 328
329 # If we have "make <whatever> modules", compile modules 329 # If we have "make <whatever> modules", compile modules
330 # in addition to whatever we do anyway. 330 # in addition to whatever we do anyway.
331 # Just "make" or "make all" shall build modules as well 331 # Just "make" or "make all" shall build modules as well
332 332
333 ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 333 ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
334 KBUILD_MODULES := 1 334 KBUILD_MODULES := 1
335 endif 335 endif
336 336
337 ifeq ($(MAKECMDGOALS),) 337 ifeq ($(MAKECMDGOALS),)
338 KBUILD_MODULES := 1 338 KBUILD_MODULES := 1
339 endif 339 endif
340 340
341 export KBUILD_MODULES KBUILD_BUILTIN 341 export KBUILD_MODULES KBUILD_BUILTIN
342 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 342 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
343 343
344 ifneq ($(CC),) 344 ifneq ($(CC),)
345 ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1) 345 ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1)
346 COMPILER := clang 346 COMPILER := clang
347 else 347 else
348 COMPILER := gcc 348 COMPILER := gcc
349 endif 349 endif
350 export COMPILER 350 export COMPILER
351 endif 351 endif
352 352
353 # Look for make include files relative to root of kernel src 353 # Look for make include files relative to root of kernel src
354 MAKEFLAGS += --include-dir=$(srctree) 354 MAKEFLAGS += --include-dir=$(srctree)
355 355
356 # We need some generic definitions (do not try to remake the file). 356 # We need some generic definitions (do not try to remake the file).
357 $(srctree)/scripts/Kbuild.include: ; 357 $(srctree)/scripts/Kbuild.include: ;
358 include $(srctree)/scripts/Kbuild.include 358 include $(srctree)/scripts/Kbuild.include
359 359
360 # Make variables (CC, etc...) 360 # Make variables (CC, etc...)
361 AS = $(CROSS_COMPILE)as 361 AS = $(CROSS_COMPILE)as
362 LD = $(CROSS_COMPILE)ld 362 LD = $(CROSS_COMPILE)ld
363 CC = $(CROSS_COMPILE)gcc 363 CC = $(CROSS_COMPILE)gcc
364 CPP = $(CC) -E 364 CPP = $(CC) -E
365 AR = $(CROSS_COMPILE)ar 365 AR = $(CROSS_COMPILE)ar
366 NM = $(CROSS_COMPILE)nm 366 NM = $(CROSS_COMPILE)nm
367 STRIP = $(CROSS_COMPILE)strip 367 STRIP = $(CROSS_COMPILE)strip
368 OBJCOPY = $(CROSS_COMPILE)objcopy 368 OBJCOPY = $(CROSS_COMPILE)objcopy
369 OBJDUMP = $(CROSS_COMPILE)objdump 369 OBJDUMP = $(CROSS_COMPILE)objdump
370 AWK = awk 370 AWK = awk
371 GENKSYMS = scripts/genksyms/genksyms 371 GENKSYMS = scripts/genksyms/genksyms
372 INSTALLKERNEL := installkernel 372 INSTALLKERNEL := installkernel
373 DEPMOD = /sbin/depmod 373 DEPMOD = /sbin/depmod
374 PERL = perl 374 PERL = perl
375 CHECK = sparse 375 CHECK = sparse
376 376
377 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 377 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
378 -Wbitwise -Wno-return-void $(CF) 378 -Wbitwise -Wno-return-void $(CF)
379 CFLAGS_MODULE = 379 CFLAGS_MODULE =
380 AFLAGS_MODULE = 380 AFLAGS_MODULE =
381 LDFLAGS_MODULE = 381 LDFLAGS_MODULE =
382 CFLAGS_KERNEL = 382 CFLAGS_KERNEL =
383 AFLAGS_KERNEL = 383 AFLAGS_KERNEL =
384 CFLAGS_GCOV = -fprofile-arcs -ftest-coverage 384 CFLAGS_GCOV = -fprofile-arcs -ftest-coverage
385 385
386 386
387 # Use USERINCLUDE when you must reference the UAPI directories only. 387 # Use USERINCLUDE when you must reference the UAPI directories only.
388 USERINCLUDE := \ 388 USERINCLUDE := \
389 -I$(srctree)/arch/$(hdr-arch)/include/uapi \ 389 -I$(srctree)/arch/$(hdr-arch)/include/uapi \
390 -Iarch/$(hdr-arch)/include/generated/uapi \ 390 -Iarch/$(hdr-arch)/include/generated/uapi \
391 -I$(srctree)/include/uapi \ 391 -I$(srctree)/include/uapi \
392 -Iinclude/generated/uapi \ 392 -Iinclude/generated/uapi \
393 -include $(srctree)/include/linux/kconfig.h 393 -include $(srctree)/include/linux/kconfig.h
394 394
395 # Use LINUXINCLUDE when you must reference the include/ directory. 395 # Use LINUXINCLUDE when you must reference the include/ directory.
396 # Needed to be compatible with the O= option 396 # Needed to be compatible with the O= option
397 LINUXINCLUDE := \ 397 LINUXINCLUDE := \
398 -I$(srctree)/arch/$(hdr-arch)/include \ 398 -I$(srctree)/arch/$(hdr-arch)/include \
399 -Iarch/$(hdr-arch)/include/generated \ 399 -Iarch/$(hdr-arch)/include/generated \
400 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 400 $(if $(KBUILD_SRC), -I$(srctree)/include) \
401 -Iinclude \ 401 -Iinclude \
402 $(USERINCLUDE) 402 $(USERINCLUDE)
403 403
404 KBUILD_CPPFLAGS := -D__KERNEL__ 404 KBUILD_CPPFLAGS := -D__KERNEL__
405 405
406 KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ 406 KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
407 -fno-strict-aliasing -fno-common \ 407 -fno-strict-aliasing -fno-common \
408 -Werror-implicit-function-declaration \ 408 -Werror-implicit-function-declaration \
409 -Wno-format-security 409 -Wno-format-security
410 410
411 KBUILD_AFLAGS_KERNEL := 411 KBUILD_AFLAGS_KERNEL :=
412 KBUILD_CFLAGS_KERNEL := 412 KBUILD_CFLAGS_KERNEL :=
413 KBUILD_AFLAGS := -D__ASSEMBLY__ 413 KBUILD_AFLAGS := -D__ASSEMBLY__
414 KBUILD_AFLAGS_MODULE := -DMODULE 414 KBUILD_AFLAGS_MODULE := -DMODULE
415 KBUILD_CFLAGS_MODULE := -DMODULE 415 KBUILD_CFLAGS_MODULE := -DMODULE
416 KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds 416 KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
417 417
418 # Read KERNELRELEASE from include/config/kernel.release (if it exists) 418 # Read KERNELRELEASE from include/config/kernel.release (if it exists)
419 KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) 419 KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
420 KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 420 KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
421 421
422 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION 422 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
423 export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC 423 export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
424 export CPP AR NM STRIP OBJCOPY OBJDUMP 424 export CPP AR NM STRIP OBJCOPY OBJDUMP
425 export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE 425 export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE
426 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS 426 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
427 427
428 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS 428 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
429 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV 429 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
430 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE 430 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
431 export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE 431 export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
432 export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL 432 export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
433 export KBUILD_ARFLAGS 433 export KBUILD_ARFLAGS
434 434
435 # When compiling out-of-tree modules, put MODVERDIR in the module 435 # When compiling out-of-tree modules, put MODVERDIR in the module
436 # tree rather than in the kernel tree. The kernel tree might 436 # tree rather than in the kernel tree. The kernel tree might
437 # even be read-only. 437 # even be read-only.
438 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 438 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
439 439
440 # Files to ignore in find ... statements 440 # Files to ignore in find ... statements
441 441
442 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 442 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
443 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 443 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
444 -prune -o 444 -prune -o
445 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 445 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
446 --exclude CVS --exclude .pc --exclude .hg --exclude .git 446 --exclude CVS --exclude .pc --exclude .hg --exclude .git
447 447
448 # =========================================================================== 448 # ===========================================================================
449 # Rules shared between *config targets and build targets 449 # Rules shared between *config targets and build targets
450 450
451 # Basic helpers built in scripts/ 451 # Basic helpers built in scripts/
452 PHONY += scripts_basic 452 PHONY += scripts_basic
453 scripts_basic: 453 scripts_basic:
454 $(Q)$(MAKE) $(build)=scripts/basic 454 $(Q)$(MAKE) $(build)=scripts/basic
455 $(Q)rm -f .tmp_quiet_recordmcount 455 $(Q)rm -f .tmp_quiet_recordmcount
456 456
457 # To avoid any implicit rule to kick in, define an empty command. 457 # To avoid any implicit rule to kick in, define an empty command.
458 scripts/basic/%: scripts_basic ; 458 scripts/basic/%: scripts_basic ;
459 459
460 PHONY += outputmakefile 460 PHONY += outputmakefile
461 # outputmakefile generates a Makefile in the output directory, if using a 461 # outputmakefile generates a Makefile in the output directory, if using a
462 # separate output directory. This allows convenient use of make in the 462 # separate output directory. This allows convenient use of make in the
463 # output directory. 463 # output directory.
464 outputmakefile: 464 outputmakefile:
465 ifneq ($(KBUILD_SRC),) 465 ifneq ($(KBUILD_SRC),)
466 $(Q)ln -fsn $(srctree) source 466 $(Q)ln -fsn $(srctree) source
467 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 467 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
468 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 468 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
469 endif 469 endif
470 470
471 # Support for using generic headers in asm-generic 471 # Support for using generic headers in asm-generic
472 PHONY += asm-generic 472 PHONY += asm-generic
473 asm-generic: 473 asm-generic:
474 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ 474 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
475 src=asm obj=arch/$(SRCARCH)/include/generated/asm 475 src=asm obj=arch/$(SRCARCH)/include/generated/asm
476 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ 476 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
477 src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm 477 src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm
478 478
479 # To make sure we do not include .config for any of the *config targets 479 # To make sure we do not include .config for any of the *config targets
480 # catch them early, and hand them over to scripts/kconfig/Makefile 480 # catch them early, and hand them over to scripts/kconfig/Makefile
481 # It is allowed to specify more targets when calling make, including 481 # It is allowed to specify more targets when calling make, including
482 # mixing *config targets and build targets. 482 # mixing *config targets and build targets.
483 # For example 'make oldconfig all'. 483 # For example 'make oldconfig all'.
484 # Detect when mixed targets is specified, and make a second invocation 484 # Detect when mixed targets is specified, and make a second invocation
485 # of make so .config is not included in this case either (for *config). 485 # of make so .config is not included in this case either (for *config).
486 486
487 version_h := include/generated/uapi/linux/version.h 487 version_h := include/generated/uapi/linux/version.h
488 488
489 no-dot-config-targets := clean mrproper distclean \ 489 no-dot-config-targets := clean mrproper distclean \
490 cscope gtags TAGS tags help %docs check% coccicheck \ 490 cscope gtags TAGS tags help %docs check% coccicheck \
491 $(version_h) headers_% archheaders archscripts \ 491 $(version_h) headers_% archheaders archscripts \
492 kernelversion %src-pkg 492 kernelversion %src-pkg
493 493
494 config-targets := 0 494 config-targets := 0
495 mixed-targets := 0 495 mixed-targets := 0
496 dot-config := 1 496 dot-config := 1
497 497
498 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 498 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
499 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 499 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
500 dot-config := 0 500 dot-config := 0
501 endif 501 endif
502 endif 502 endif
503 503
504 ifeq ($(KBUILD_EXTMOD),) 504 ifeq ($(KBUILD_EXTMOD),)
505 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 505 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
506 config-targets := 1 506 config-targets := 1
507 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 507 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
508 mixed-targets := 1 508 mixed-targets := 1
509 endif 509 endif
510 endif 510 endif
511 endif 511 endif
512 512
513 ifeq ($(mixed-targets),1) 513 ifeq ($(mixed-targets),1)
514 # =========================================================================== 514 # ===========================================================================
515 # We're called with mixed targets (*config and build targets). 515 # We're called with mixed targets (*config and build targets).
516 # Handle them one by one. 516 # Handle them one by one.
517 517
518 PHONY += $(MAKECMDGOALS) __build_one_by_one 518 PHONY += $(MAKECMDGOALS) __build_one_by_one
519 519
520 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 520 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
521 @: 521 @:
522 522
523 __build_one_by_one: 523 __build_one_by_one:
524 $(Q)set -e; \ 524 $(Q)set -e; \
525 for i in $(MAKECMDGOALS); do \ 525 for i in $(MAKECMDGOALS); do \
526 $(MAKE) -f $(srctree)/Makefile $$i; \ 526 $(MAKE) -f $(srctree)/Makefile $$i; \
527 done 527 done
528 528
529 else 529 else
530 ifeq ($(config-targets),1) 530 ifeq ($(config-targets),1)
531 # =========================================================================== 531 # ===========================================================================
532 # *config targets only - make sure prerequisites are updated, and descend 532 # *config targets only - make sure prerequisites are updated, and descend
533 # in scripts/kconfig to make the *config target 533 # in scripts/kconfig to make the *config target
534 534
535 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. 535 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
536 # KBUILD_DEFCONFIG may point out an alternative default configuration 536 # KBUILD_DEFCONFIG may point out an alternative default configuration
537 # used for 'make defconfig' 537 # used for 'make defconfig'
538 include $(srctree)/arch/$(SRCARCH)/Makefile 538 include $(srctree)/arch/$(SRCARCH)/Makefile
539 export KBUILD_DEFCONFIG KBUILD_KCONFIG 539 export KBUILD_DEFCONFIG KBUILD_KCONFIG
540 540
541 config: scripts_basic outputmakefile FORCE 541 config: scripts_basic outputmakefile FORCE
542 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 542 $(Q)$(MAKE) $(build)=scripts/kconfig $@
543 543
544 %config: scripts_basic outputmakefile FORCE 544 %config: scripts_basic outputmakefile FORCE
545 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 545 $(Q)$(MAKE) $(build)=scripts/kconfig $@
546 546
547 else 547 else
548 # =========================================================================== 548 # ===========================================================================
549 # Build targets only - this includes vmlinux, arch specific targets, clean 549 # Build targets only - this includes vmlinux, arch specific targets, clean
550 # targets and others. In general all targets except *config targets. 550 # targets and others. In general all targets except *config targets.
551 551
552 ifeq ($(KBUILD_EXTMOD),) 552 ifeq ($(KBUILD_EXTMOD),)
553 # Additional helpers built in scripts/ 553 # Additional helpers built in scripts/
554 # Carefully list dependencies so we do not try to build scripts twice 554 # Carefully list dependencies so we do not try to build scripts twice
555 # in parallel 555 # in parallel
556 PHONY += scripts 556 PHONY += scripts
557 scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \ 557 scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \
558 asm-generic 558 asm-generic
559 $(Q)$(MAKE) $(build)=$(@) 559 $(Q)$(MAKE) $(build)=$(@)
560 560
561 # Objects we will link into vmlinux / subdirs we need to visit 561 # Objects we will link into vmlinux / subdirs we need to visit
562 init-y := init/ 562 init-y := init/
563 drivers-y := drivers/ sound/ firmware/ 563 drivers-y := drivers/ sound/ firmware/
564 net-y := net/ 564 net-y := net/
565 libs-y := lib/ 565 libs-y := lib/
566 core-y := usr/ 566 core-y := usr/
567 endif # KBUILD_EXTMOD 567 endif # KBUILD_EXTMOD
568 568
569 ifeq ($(dot-config),1) 569 ifeq ($(dot-config),1)
570 # Read in config 570 # Read in config
571 -include include/config/auto.conf 571 -include include/config/auto.conf
572 572
573 ifeq ($(KBUILD_EXTMOD),) 573 ifeq ($(KBUILD_EXTMOD),)
574 # Read in dependencies to all Kconfig* files, make sure to run 574 # Read in dependencies to all Kconfig* files, make sure to run
575 # oldconfig if changes are detected. 575 # oldconfig if changes are detected.
576 -include include/config/auto.conf.cmd 576 -include include/config/auto.conf.cmd
577 577
578 # To avoid any implicit rule to kick in, define an empty command 578 # To avoid any implicit rule to kick in, define an empty command
579 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 579 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
580 580
581 # If .config is newer than include/config/auto.conf, someone tinkered 581 # If .config is newer than include/config/auto.conf, someone tinkered
582 # with it and forgot to run make oldconfig. 582 # with it and forgot to run make oldconfig.
583 # if auto.conf.cmd is missing then we are probably in a cleaned tree so 583 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
584 # we execute the config step to be sure to catch updated Kconfig files 584 # we execute the config step to be sure to catch updated Kconfig files
585 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 585 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
586 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 586 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
587 else 587 else
588 # external modules needs include/generated/autoconf.h and include/config/auto.conf 588 # external modules needs include/generated/autoconf.h and include/config/auto.conf
589 # but do not care if they are up-to-date. Use auto.conf to trigger the test 589 # but do not care if they are up-to-date. Use auto.conf to trigger the test
590 PHONY += include/config/auto.conf 590 PHONY += include/config/auto.conf
591 591
592 include/config/auto.conf: 592 include/config/auto.conf:
593 $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ 593 $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \
594 echo >&2; \ 594 echo >&2; \
595 echo >&2 " ERROR: Kernel configuration is invalid."; \ 595 echo >&2 " ERROR: Kernel configuration is invalid."; \
596 echo >&2 " include/generated/autoconf.h or $@ are missing.";\ 596 echo >&2 " include/generated/autoconf.h or $@ are missing.";\
597 echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ 597 echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \
598 echo >&2 ; \ 598 echo >&2 ; \
599 /bin/false) 599 /bin/false)
600 600
601 endif # KBUILD_EXTMOD 601 endif # KBUILD_EXTMOD
602 602
603 else 603 else
604 # Dummy target needed, because used as prerequisite 604 # Dummy target needed, because used as prerequisite
605 include/config/auto.conf: ; 605 include/config/auto.conf: ;
606 endif # $(dot-config) 606 endif # $(dot-config)
607 607
608 # The all: target is the default when no target is given on the 608 # The all: target is the default when no target is given on the
609 # command line. 609 # command line.
610 # This allow a user to issue only 'make' to build a kernel including modules 610 # This allow a user to issue only 'make' to build a kernel including modules
611 # Defaults to vmlinux, but the arch makefile usually adds further targets 611 # Defaults to vmlinux, but the arch makefile usually adds further targets
612 all: vmlinux 612 all: vmlinux
613 613
614 include $(srctree)/arch/$(SRCARCH)/Makefile 614 include $(srctree)/arch/$(SRCARCH)/Makefile
615 615
616 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,) 616 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,)
617 617
618 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 618 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
619 KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) 619 KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
620 else 620 else
621 KBUILD_CFLAGS += -O2 621 KBUILD_CFLAGS += -O2
622 endif 622 endif
623 623
624 ifdef CONFIG_READABLE_ASM 624 ifdef CONFIG_READABLE_ASM
625 # Disable optimizations that make assembler listings hard to read. 625 # Disable optimizations that make assembler listings hard to read.
626 # reorder blocks reorders the control in the function 626 # reorder blocks reorders the control in the function
627 # ipa clone creates specialized cloned functions 627 # ipa clone creates specialized cloned functions
628 # partial inlining inlines only parts of functions 628 # partial inlining inlines only parts of functions
629 KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ 629 KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \
630 $(call cc-option,-fno-ipa-cp-clone,) \ 630 $(call cc-option,-fno-ipa-cp-clone,) \
631 $(call cc-option,-fno-partial-inlining) 631 $(call cc-option,-fno-partial-inlining)
632 endif 632 endif
633 633
634 ifneq ($(CONFIG_FRAME_WARN),0) 634 ifneq ($(CONFIG_FRAME_WARN),0)
635 KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) 635 KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
636 endif 636 endif
637 637
638 # Handle stack protector mode. 638 # Handle stack protector mode.
639 ifdef CONFIG_CC_STACKPROTECTOR_REGULAR 639 ifdef CONFIG_CC_STACKPROTECTOR_REGULAR
640 stackp-flag := -fstack-protector 640 stackp-flag := -fstack-protector
641 ifeq ($(call cc-option, $(stackp-flag)),) 641 ifeq ($(call cc-option, $(stackp-flag)),)
642 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \ 642 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \
643 -fstack-protector not supported by compiler) 643 -fstack-protector not supported by compiler)
644 endif 644 endif
645 else 645 else
646 ifdef CONFIG_CC_STACKPROTECTOR_STRONG 646 ifdef CONFIG_CC_STACKPROTECTOR_STRONG
647 stackp-flag := -fstack-protector-strong 647 stackp-flag := -fstack-protector-strong
648 ifeq ($(call cc-option, $(stackp-flag)),) 648 ifeq ($(call cc-option, $(stackp-flag)),)
649 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \ 649 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \
650 -fstack-protector-strong not supported by compiler) 650 -fstack-protector-strong not supported by compiler)
651 endif 651 endif
652 else 652 else
653 # Force off for distro compilers that enable stack protector by default. 653 # Force off for distro compilers that enable stack protector by default.
654 stackp-flag := $(call cc-option, -fno-stack-protector) 654 stackp-flag := $(call cc-option, -fno-stack-protector)
655 endif 655 endif
656 endif 656 endif
657 KBUILD_CFLAGS += $(stackp-flag) 657 KBUILD_CFLAGS += $(stackp-flag)
658 658
659 ifeq ($(COMPILER),clang) 659 ifeq ($(COMPILER),clang)
660 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 660 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
661 KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) 661 KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,)
662 KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) 662 KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable)
663 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 663 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
664 KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 664 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
665 # Quiet clang warning: comparison of unsigned expression < 0 is always false 665 # Quiet clang warning: comparison of unsigned expression < 0 is always false
666 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 666 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
667 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the 667 # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the
668 # source of a reference will be _MergedGlobals and not on of the whitelisted names. 668 # source of a reference will be _MergedGlobals and not on of the whitelisted names.
669 # See modpost pattern 2 669 # See modpost pattern 2
670 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 670 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
671 else 671 else
672 672
673 # This warning generated too much noise in a regular build. 673 # This warning generated too much noise in a regular build.
674 # Use make W=1 to enable this warning (see scripts/Makefile.build) 674 # Use make W=1 to enable this warning (see scripts/Makefile.build)
675 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) 675 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
676 endif 676 endif
677 677
678 ifdef CONFIG_FRAME_POINTER 678 ifdef CONFIG_FRAME_POINTER
679 KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls 679 KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
680 else 680 else
681 # Some targets (ARM with Thumb2, for example), can't be built with frame 681 # Some targets (ARM with Thumb2, for example), can't be built with frame
682 # pointers. For those, we don't have FUNCTION_TRACER automatically 682 # pointers. For those, we don't have FUNCTION_TRACER automatically
683 # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is 683 # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is
684 # incompatible with -fomit-frame-pointer with current GCC, so we don't use 684 # incompatible with -fomit-frame-pointer with current GCC, so we don't use
685 # -fomit-frame-pointer with FUNCTION_TRACER. 685 # -fomit-frame-pointer with FUNCTION_TRACER.
686 ifndef CONFIG_FUNCTION_TRACER 686 ifndef CONFIG_FUNCTION_TRACER
687 KBUILD_CFLAGS += -fomit-frame-pointer 687 KBUILD_CFLAGS += -fomit-frame-pointer
688 endif 688 endif
689 endif 689 endif
690 690
691 ifdef CONFIG_DEBUG_INFO 691 ifdef CONFIG_DEBUG_INFO
692 KBUILD_CFLAGS += -g 692 KBUILD_CFLAGS += -g
693 KBUILD_AFLAGS += -Wa,-gdwarf-2 693 KBUILD_AFLAGS += -Wa,-gdwarf-2
694 endif 694 endif
695 695
696 ifdef CONFIG_DEBUG_INFO_REDUCED 696 ifdef CONFIG_DEBUG_INFO_REDUCED
697 KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ 697 KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \
698 $(call cc-option,-fno-var-tracking) 698 $(call cc-option,-fno-var-tracking)
699 endif 699 endif
700 700
701 ifdef CONFIG_FUNCTION_TRACER 701 ifdef CONFIG_FUNCTION_TRACER
702 ifdef CONFIG_HAVE_FENTRY 702 ifdef CONFIG_HAVE_FENTRY
703 CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) 703 CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY)
704 endif 704 endif
705 KBUILD_CFLAGS += -pg $(CC_USING_FENTRY) 705 KBUILD_CFLAGS += -pg $(CC_USING_FENTRY)
706 KBUILD_AFLAGS += $(CC_USING_FENTRY) 706 KBUILD_AFLAGS += $(CC_USING_FENTRY)
707 ifdef CONFIG_DYNAMIC_FTRACE 707 ifdef CONFIG_DYNAMIC_FTRACE
708 ifdef CONFIG_HAVE_C_RECORDMCOUNT 708 ifdef CONFIG_HAVE_C_RECORDMCOUNT
709 BUILD_C_RECORDMCOUNT := y 709 BUILD_C_RECORDMCOUNT := y
710 export BUILD_C_RECORDMCOUNT 710 export BUILD_C_RECORDMCOUNT
711 endif 711 endif
712 endif 712 endif
713 endif 713 endif
714 714
715 # We trigger additional mismatches with less inlining 715 # We trigger additional mismatches with less inlining
716 ifdef CONFIG_DEBUG_SECTION_MISMATCH 716 ifdef CONFIG_DEBUG_SECTION_MISMATCH
717 KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) 717 KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
718 endif 718 endif
719 719
720 # arch Makefile may override CC so keep this after arch Makefile is included 720 # arch Makefile may override CC so keep this after arch Makefile is included
721 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 721 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
722 CHECKFLAGS += $(NOSTDINC_FLAGS) 722 CHECKFLAGS += $(NOSTDINC_FLAGS)
723 723
724 # warn about C99 declaration after statement 724 # warn about C99 declaration after statement
725 KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) 725 KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
726 726
727 # disable pointer signed / unsigned warnings in gcc 4.0 727 # disable pointer signed / unsigned warnings in gcc 4.0
728 KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) 728 KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
729 729
730 # disable invalid "can't wrap" optimizations for signed / pointers 730 # disable invalid "can't wrap" optimizations for signed / pointers
731 KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) 731 KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow)
732 732
733 # conserve stack if available 733 # conserve stack if available
734 KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) 734 KBUILD_CFLAGS += $(call cc-option,-fconserve-stack)
735 735
736 # disallow errors like 'EXPORT_GPL(foo);' with missing header 736 # disallow errors like 'EXPORT_GPL(foo);' with missing header
737 KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) 737 KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int)
738 738
739 # require functions to have arguments in prototypes, not empty 'int foo()' 739 # require functions to have arguments in prototypes, not empty 'int foo()'
740 KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) 740 KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes)
741 741
742 # Prohibit date/time macros, which would make the build non-deterministic 742 # Prohibit date/time macros, which would make the build non-deterministic
743 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 743 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
744 744
745 # use the deterministic mode of AR if available 745 # use the deterministic mode of AR if available
746 KBUILD_ARFLAGS := $(call ar-option,D) 746 KBUILD_ARFLAGS := $(call ar-option,D)
747 747
748 # check for 'asm goto' 748 # check for 'asm goto'
749 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) 749 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
750 KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO 750 KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
751 endif 751 endif
752 752
753 include $(srctree)/scripts/Makefile.extrawarn 753 include $(srctree)/scripts/Makefile.extrawarn
754 754
755 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 755 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
756 KBUILD_CPPFLAGS += $(KCPPFLAGS) 756 KBUILD_CPPFLAGS += $(KCPPFLAGS)
757 KBUILD_AFLAGS += $(KAFLAGS) 757 KBUILD_AFLAGS += $(KAFLAGS)
758 KBUILD_CFLAGS += $(KCFLAGS) 758 KBUILD_CFLAGS += $(KCFLAGS)
759 759
760 # Use --build-id when available. 760 # Use --build-id when available.
761 LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ 761 LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
762 $(call cc-ldoption, -Wl$(comma)--build-id,)) 762 $(call cc-ldoption, -Wl$(comma)--build-id,))
763 KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) 763 KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
764 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) 764 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
765 765
766 ifeq ($(CONFIG_STRIP_ASM_SYMS),y) 766 ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
767 LDFLAGS_vmlinux += $(call ld-option, -X,) 767 LDFLAGS_vmlinux += $(call ld-option, -X,)
768 endif 768 endif
769 769
770 # Default kernel image to build when no specific target is given. 770 # Default kernel image to build when no specific target is given.
771 # KBUILD_IMAGE may be overruled on the command line or 771 # KBUILD_IMAGE may be overruled on the command line or
772 # set in the environment 772 # set in the environment
773 # Also any assignments in arch/$(ARCH)/Makefile take precedence over 773 # Also any assignments in arch/$(ARCH)/Makefile take precedence over
774 # this default value 774 # this default value
775 export KBUILD_IMAGE ?= vmlinux 775 export KBUILD_IMAGE ?= vmlinux
776 776
777 # 777 #
778 # INSTALL_PATH specifies where to place the updated kernel and system map 778 # INSTALL_PATH specifies where to place the updated kernel and system map
779 # images. Default is /boot, but you can set it to other values 779 # images. Default is /boot, but you can set it to other values
780 export INSTALL_PATH ?= /boot 780 export INSTALL_PATH ?= /boot
781 781
782 # 782 #
783 # INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots. 783 # INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots.
784 # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as 784 # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as
785 # an argument if needed. Otherwise it defaults to the kernel install path 785 # an argument if needed. Otherwise it defaults to the kernel install path
786 # 786 #
787 export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) 787 export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE)
788 788
789 # 789 #
790 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory 790 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
791 # relocations required by build roots. This is not defined in the 791 # relocations required by build roots. This is not defined in the
792 # makefile but the argument can be passed to make if needed. 792 # makefile but the argument can be passed to make if needed.
793 # 793 #
794 794
795 MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) 795 MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
796 export MODLIB 796 export MODLIB
797 797
798 # 798 #
799 # INSTALL_MOD_STRIP, if defined, will cause modules to be 799 # INSTALL_MOD_STRIP, if defined, will cause modules to be
800 # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then 800 # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then
801 # the default option --strip-debug will be used. Otherwise, 801 # the default option --strip-debug will be used. Otherwise,
802 # INSTALL_MOD_STRIP value will be used as the options to the strip command. 802 # INSTALL_MOD_STRIP value will be used as the options to the strip command.
803 803
804 ifdef INSTALL_MOD_STRIP 804 ifdef INSTALL_MOD_STRIP
805 ifeq ($(INSTALL_MOD_STRIP),1) 805 ifeq ($(INSTALL_MOD_STRIP),1)
806 mod_strip_cmd = $(STRIP) --strip-debug 806 mod_strip_cmd = $(STRIP) --strip-debug
807 else 807 else
808 mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) 808 mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
809 endif # INSTALL_MOD_STRIP=1 809 endif # INSTALL_MOD_STRIP=1
810 else 810 else
811 mod_strip_cmd = true 811 mod_strip_cmd = true
812 endif # INSTALL_MOD_STRIP 812 endif # INSTALL_MOD_STRIP
813 export mod_strip_cmd 813 export mod_strip_cmd
814 814
815 # Select initial ramdisk compression format, default is gzip(1). 815 # Select initial ramdisk compression format, default is gzip(1).
816 # This shall be used by the dracut(8) tool while creating an initramfs image. 816 # This shall be used by the dracut(8) tool while creating an initramfs image.
817 # 817 #
818 INITRD_COMPRESS-y := gzip 818 INITRD_COMPRESS-y := gzip
819 INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2 819 INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2
820 INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma 820 INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma
821 INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz 821 INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz
822 INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo 822 INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo
823 INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4 823 INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4
824 # do not export INITRD_COMPRESS, since we didn't actually 824 # do not export INITRD_COMPRESS, since we didn't actually
825 # choose a sane default compression above. 825 # choose a sane default compression above.
826 # export INITRD_COMPRESS := $(INITRD_COMPRESS-y) 826 # export INITRD_COMPRESS := $(INITRD_COMPRESS-y)
827 827
828 ifdef CONFIG_MODULE_SIG_ALL 828 ifdef CONFIG_MODULE_SIG_ALL
829 MODSECKEY = ./signing_key.priv 829 MODSECKEY = ./signing_key.priv
830 MODPUBKEY = ./signing_key.x509 830 MODPUBKEY = ./signing_key.x509
831 export MODPUBKEY 831 export MODPUBKEY
832 mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) 832 mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY)
833 else 833 else
834 mod_sign_cmd = true 834 mod_sign_cmd = true
835 endif 835 endif
836 export mod_sign_cmd 836 export mod_sign_cmd
837 837
838 838
839 ifeq ($(KBUILD_EXTMOD),) 839 ifeq ($(KBUILD_EXTMOD),)
840 core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ 840 core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
841 841
842 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ 842 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
843 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ 843 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
844 $(net-y) $(net-m) $(libs-y) $(libs-m))) 844 $(net-y) $(net-m) $(libs-y) $(libs-m)))
845 845
846 vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ 846 vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
847 $(init-n) $(init-) \ 847 $(init-n) $(init-) \
848 $(core-n) $(core-) $(drivers-n) $(drivers-) \ 848 $(core-n) $(core-) $(drivers-n) $(drivers-) \
849 $(net-n) $(net-) $(libs-n) $(libs-)))) 849 $(net-n) $(net-) $(libs-n) $(libs-))))
850 850
851 init-y := $(patsubst %/, %/built-in.o, $(init-y)) 851 init-y := $(patsubst %/, %/built-in.o, $(init-y))
852 core-y := $(patsubst %/, %/built-in.o, $(core-y)) 852 core-y := $(patsubst %/, %/built-in.o, $(core-y))
853 drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) 853 drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))
854 net-y := $(patsubst %/, %/built-in.o, $(net-y)) 854 net-y := $(patsubst %/, %/built-in.o, $(net-y))
855 libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) 855 libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
856 libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) 856 libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))
857 libs-y := $(libs-y1) $(libs-y2) 857 libs-y := $(libs-y1) $(libs-y2)
858 858
859 # Externally visible symbols (used by link-vmlinux.sh) 859 # Externally visible symbols (used by link-vmlinux.sh)
860 export KBUILD_VMLINUX_INIT := $(head-y) $(init-y) 860 export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)
861 export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) 861 export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y)
862 export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds 862 export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
863 export LDFLAGS_vmlinux 863 export LDFLAGS_vmlinux
864 # used by scripts/pacmage/Makefile 864 # used by scripts/pacmage/Makefile
865 export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt) 865 export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt)
866 866
867 vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) 867 vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN)
868 868
869 # Final link of vmlinux 869 # Final link of vmlinux
870 cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) 870 cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux)
871 quiet_cmd_link-vmlinux = LINK $@ 871 quiet_cmd_link-vmlinux = LINK $@
872 872
873 # Include targets which we want to 873 # Include targets which we want to
874 # execute if the rest of the kernel build went well. 874 # execute if the rest of the kernel build went well.
875 vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE 875 vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE
876 ifdef CONFIG_HEADERS_CHECK 876 ifdef CONFIG_HEADERS_CHECK
877 $(Q)$(MAKE) -f $(srctree)/Makefile headers_check 877 $(Q)$(MAKE) -f $(srctree)/Makefile headers_check
878 endif 878 endif
879 ifdef CONFIG_SAMPLES 879 ifdef CONFIG_SAMPLES
880 $(Q)$(MAKE) $(build)=samples 880 $(Q)$(MAKE) $(build)=samples
881 endif 881 endif
882 ifdef CONFIG_BUILD_DOCSRC 882 ifdef CONFIG_BUILD_DOCSRC
883 $(Q)$(MAKE) $(build)=Documentation 883 $(Q)$(MAKE) $(build)=Documentation
884 endif 884 endif
885 +$(call if_changed,link-vmlinux) 885 +$(call if_changed,link-vmlinux)
886 886
887 # The actual objects are generated when descending, 887 # The actual objects are generated when descending,
888 # make sure no implicit rule kicks in 888 # make sure no implicit rule kicks in
889 $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; 889 $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
890 890
891 # Handle descending into subdirectories listed in $(vmlinux-dirs) 891 # Handle descending into subdirectories listed in $(vmlinux-dirs)
892 # Preset locale variables to speed up the build process. Limit locale 892 # Preset locale variables to speed up the build process. Limit locale
893 # tweaks to this spot to avoid wrong language settings when running 893 # tweaks to this spot to avoid wrong language settings when running
894 # make menuconfig etc. 894 # make menuconfig etc.
895 # Error messages still appears in the original language 895 # Error messages still appears in the original language
896 896
897 PHONY += $(vmlinux-dirs) 897 PHONY += $(vmlinux-dirs)
898 $(vmlinux-dirs): prepare scripts 898 $(vmlinux-dirs): prepare scripts
899 $(Q)$(MAKE) $(build)=$@ 899 $(Q)$(MAKE) $(build)=$@
900 900
901 define filechk_kernel.release 901 define filechk_kernel.release
902 echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 902 echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
903 endef 903 endef
904 904
905 # Store (new) KERNELRELEASE string in include/config/kernel.release 905 # Store (new) KERNELRELEASE string in include/config/kernel.release
906 include/config/kernel.release: include/config/auto.conf FORCE 906 include/config/kernel.release: include/config/auto.conf FORCE
907 $(call filechk,kernel.release) 907 $(call filechk,kernel.release)
908 908
909 909
910 # Things we need to do before we recursively start building the kernel 910 # Things we need to do before we recursively start building the kernel
911 # or the modules are listed in "prepare". 911 # or the modules are listed in "prepare".
912 # A multi level approach is used. prepareN is processed before prepareN-1. 912 # A multi level approach is used. prepareN is processed before prepareN-1.
913 # archprepare is used in arch Makefiles and when processed asm symlink, 913 # archprepare is used in arch Makefiles and when processed asm symlink,
914 # version.h and scripts_basic is processed / created. 914 # version.h and scripts_basic is processed / created.
915 915
916 # Listed in dependency order 916 # Listed in dependency order
917 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 917 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
918 918
919 # prepare3 is used to check if we are building in a separate output directory, 919 # prepare3 is used to check if we are building in a separate output directory,
920 # and if so do: 920 # and if so do:
921 # 1) Check that make has not been executed in the kernel src $(srctree) 921 # 1) Check that make has not been executed in the kernel src $(srctree)
922 prepare3: include/config/kernel.release 922 prepare3: include/config/kernel.release
923 ifneq ($(KBUILD_SRC),) 923 ifneq ($(KBUILD_SRC),)
924 @$(kecho) ' Using $(srctree) as source for kernel' 924 @$(kecho) ' Using $(srctree) as source for kernel'
925 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 925 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
926 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 926 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
927 echo >&2 " in the '$(srctree)' directory.";\ 927 echo >&2 " in the '$(srctree)' directory.";\
928 /bin/false; \ 928 /bin/false; \
929 fi; 929 fi;
930 endif 930 endif
931 931
932 # prepare2 creates a makefile if using a separate output directory 932 # prepare2 creates a makefile if using a separate output directory
933 prepare2: prepare3 outputmakefile asm-generic 933 prepare2: prepare3 outputmakefile asm-generic
934 934
935 prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ 935 prepare1: prepare2 $(version_h) include/generated/utsrelease.h \
936 include/config/auto.conf 936 include/config/auto.conf
937 $(cmd_crmodverdir) 937 $(cmd_crmodverdir)
938 938
939 archprepare: archheaders archscripts prepare1 scripts_basic 939 archprepare: archheaders archscripts prepare1 scripts_basic
940 940
941 prepare0: archprepare FORCE 941 prepare0: archprepare FORCE
942 $(Q)$(MAKE) $(build)=. 942 $(Q)$(MAKE) $(build)=.
943 943
944 # All the preparing.. 944 # All the preparing..
945 prepare: prepare0 945 prepare: prepare0
946 946
947 # Generate some files 947 # Generate some files
948 # --------------------------------------------------------------------------- 948 # ---------------------------------------------------------------------------
949 949
950 # KERNELRELEASE can change from a few different places, meaning version.h 950 # KERNELRELEASE can change from a few different places, meaning version.h
951 # needs to be updated, so this check is forced on all builds 951 # needs to be updated, so this check is forced on all builds
952 952
953 uts_len := 64 953 uts_len := 64
954 define filechk_utsrelease.h 954 define filechk_utsrelease.h
955 if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ 955 if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
956 echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ 956 echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
957 exit 1; \ 957 exit 1; \
958 fi; \ 958 fi; \
959 (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) 959 (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)
960 endef 960 endef
961 961
962 define filechk_version.h 962 define filechk_version.h
963 (echo \#define LINUX_VERSION_CODE $(shell \ 963 (echo \#define LINUX_VERSION_CODE $(shell \
964 expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ 964 expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \
965 echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) 965 echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)
966 endef 966 endef
967 967
968 $(version_h): $(srctree)/Makefile FORCE 968 $(version_h): $(srctree)/Makefile FORCE
969 $(call filechk,version.h) 969 $(call filechk,version.h)
970 970
971 include/generated/utsrelease.h: include/config/kernel.release FORCE 971 include/generated/utsrelease.h: include/config/kernel.release FORCE
972 $(call filechk,utsrelease.h) 972 $(call filechk,utsrelease.h)
973 973
974 PHONY += headerdep 974 PHONY += headerdep
975 headerdep: 975 headerdep:
976 $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ 976 $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \
977 $(srctree)/scripts/headerdep.pl -I$(srctree)/include 977 $(srctree)/scripts/headerdep.pl -I$(srctree)/include
978 978
979 # --------------------------------------------------------------------------- 979 # ---------------------------------------------------------------------------
980 980
981 PHONY += depend dep 981 PHONY += depend dep
982 depend dep: 982 depend dep:
983 @echo '*** Warning: make $@ is unnecessary now.' 983 @echo '*** Warning: make $@ is unnecessary now.'
984 984
985 # --------------------------------------------------------------------------- 985 # ---------------------------------------------------------------------------
986 # Firmware install 986 # Firmware install
987 INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware 987 INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware
988 export INSTALL_FW_PATH 988 export INSTALL_FW_PATH
989 989
990 PHONY += firmware_install 990 PHONY += firmware_install
991 firmware_install: FORCE 991 firmware_install: FORCE
992 @mkdir -p $(objtree)/firmware 992 @mkdir -p $(objtree)/firmware
993 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install 993 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install
994 994
995 # --------------------------------------------------------------------------- 995 # ---------------------------------------------------------------------------
996 # Kernel headers 996 # Kernel headers
997 997
998 #Default location for installed headers 998 #Default location for installed headers
999 export INSTALL_HDR_PATH = $(objtree)/usr 999 export INSTALL_HDR_PATH = $(objtree)/usr
1000 1000
1001 hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj 1001 hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
1002 1002
1003 # If we do an all arch process set dst to asm-$(hdr-arch) 1003 # If we do an all arch process set dst to asm-$(hdr-arch)
1004 hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) 1004 hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)
1005 1005
1006 PHONY += archheaders 1006 PHONY += archheaders
1007 archheaders: 1007 archheaders:
1008 1008
1009 PHONY += archscripts 1009 PHONY += archscripts
1010 archscripts: 1010 archscripts:
1011 1011
1012 PHONY += __headers 1012 PHONY += __headers
1013 __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE 1013 __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE
1014 $(Q)$(MAKE) $(build)=scripts build_unifdef 1014 $(Q)$(MAKE) $(build)=scripts build_unifdef
1015 1015
1016 PHONY += headers_install_all 1016 PHONY += headers_install_all
1017 headers_install_all: 1017 headers_install_all:
1018 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install 1018 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install
1019 1019
1020 PHONY += headers_install 1020 PHONY += headers_install
1021 headers_install: __headers 1021 headers_install: __headers
1022 $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ 1022 $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
1023 $(error Headers not exportable for the $(SRCARCH) architecture)) 1023 $(error Headers not exportable for the $(SRCARCH) architecture))
1024 $(Q)$(MAKE) $(hdr-inst)=include/uapi 1024 $(Q)$(MAKE) $(hdr-inst)=include/uapi
1025 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) 1025 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst)
1026 1026
1027 PHONY += headers_check_all 1027 PHONY += headers_check_all
1028 headers_check_all: headers_install_all 1028 headers_check_all: headers_install_all
1029 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check 1029 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check
1030 1030
1031 PHONY += headers_check 1031 PHONY += headers_check
1032 headers_check: headers_install 1032 headers_check: headers_install
1033 $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1 1033 $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
1034 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1 1034 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1
1035 1035
1036 # --------------------------------------------------------------------------- 1036 # ---------------------------------------------------------------------------
1037 # Modules 1037 # Modules
1038 1038
1039 ifdef CONFIG_MODULES 1039 ifdef CONFIG_MODULES
1040 1040
1041 # By default, build modules as well 1041 # By default, build modules as well
1042 1042
1043 all: modules 1043 all: modules
1044 1044
1045 # Build modules 1045 # Build modules
1046 # 1046 #
1047 # A module can be listed more than once in obj-m resulting in 1047 # A module can be listed more than once in obj-m resulting in
1048 # duplicate lines in modules.order files. Those are removed 1048 # duplicate lines in modules.order files. Those are removed
1049 # using awk while concatenating to the final file. 1049 # using awk while concatenating to the final file.
1050 1050
1051 PHONY += modules 1051 PHONY += modules
1052 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin 1052 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
1053 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order 1053 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
1054 @$(kecho) ' Building modules, stage 2.'; 1054 @$(kecho) ' Building modules, stage 2.';
1055 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1055 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1056 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild 1056 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
1057 1057
1058 modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) 1058 modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
1059 $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin 1059 $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin
1060 1060
1061 %/modules.builtin: include/config/auto.conf 1061 %/modules.builtin: include/config/auto.conf
1062 $(Q)$(MAKE) $(modbuiltin)=$* 1062 $(Q)$(MAKE) $(modbuiltin)=$*
1063 1063
1064 1064
1065 # Target to prepare building external modules 1065 # Target to prepare building external modules
1066 PHONY += modules_prepare 1066 PHONY += modules_prepare
1067 modules_prepare: prepare scripts 1067 modules_prepare: prepare scripts
1068 1068
1069 # Target to install modules 1069 # Target to install modules
1070 PHONY += modules_install 1070 PHONY += modules_install
1071 modules_install: _modinst_ _modinst_post 1071 modules_install: _modinst_ _modinst_post
1072 1072
1073 PHONY += _modinst_ 1073 PHONY += _modinst_
1074 _modinst_: 1074 _modinst_:
1075 @rm -rf $(MODLIB)/kernel 1075 @rm -rf $(MODLIB)/kernel
1076 @rm -f $(MODLIB)/source 1076 @rm -f $(MODLIB)/source
1077 @mkdir -p $(MODLIB)/kernel 1077 @mkdir -p $(MODLIB)/kernel
1078 @ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source 1078 @ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source
1079 @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ 1079 @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \
1080 rm -f $(MODLIB)/build ; \ 1080 rm -f $(MODLIB)/build ; \
1081 ln -s $(CURDIR) $(MODLIB)/build ; \ 1081 ln -s $(CURDIR) $(MODLIB)/build ; \
1082 fi 1082 fi
1083 @cp -f $(objtree)/modules.order $(MODLIB)/ 1083 @cp -f $(objtree)/modules.order $(MODLIB)/
1084 @cp -f $(objtree)/modules.builtin $(MODLIB)/ 1084 @cp -f $(objtree)/modules.builtin $(MODLIB)/
1085 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst 1085 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1086 1086
1087 # This depmod is only for convenience to give the initial 1087 # This depmod is only for convenience to give the initial
1088 # boot a modules.dep even before / is mounted read-write. However the 1088 # boot a modules.dep even before / is mounted read-write. However the
1089 # boot script depmod is the master version. 1089 # boot script depmod is the master version.
1090 PHONY += _modinst_post 1090 PHONY += _modinst_post
1091 _modinst_post: _modinst_ 1091 _modinst_post: _modinst_
1092 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst 1092 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst
1093 $(call cmd,depmod) 1093 $(call cmd,depmod)
1094 1094
1095 ifeq ($(CONFIG_MODULE_SIG), y) 1095 ifeq ($(CONFIG_MODULE_SIG), y)
1096 PHONY += modules_sign 1096 PHONY += modules_sign
1097 modules_sign: 1097 modules_sign:
1098 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign 1098 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign
1099 endif 1099 endif
1100 1100
1101 else # CONFIG_MODULES 1101 else # CONFIG_MODULES
1102 1102
1103 # Modules not configured 1103 # Modules not configured
1104 # --------------------------------------------------------------------------- 1104 # ---------------------------------------------------------------------------
1105 1105
1106 modules modules_install: FORCE 1106 modules modules_install: FORCE
1107 @echo >&2 1107 @echo >&2
1108 @echo >&2 "The present kernel configuration has modules disabled." 1108 @echo >&2 "The present kernel configuration has modules disabled."
1109 @echo >&2 "Type 'make config' and enable loadable module support." 1109 @echo >&2 "Type 'make config' and enable loadable module support."
1110 @echo >&2 "Then build a kernel with module support enabled." 1110 @echo >&2 "Then build a kernel with module support enabled."
1111 @echo >&2 1111 @echo >&2
1112 @exit 1 1112 @exit 1
1113 1113
1114 endif # CONFIG_MODULES 1114 endif # CONFIG_MODULES
1115 1115
1116 ### 1116 ###
1117 # Cleaning is done on three levels. 1117 # Cleaning is done on three levels.
1118 # make clean Delete most generated files 1118 # make clean Delete most generated files
1119 # Leave enough to build external modules 1119 # Leave enough to build external modules
1120 # make mrproper Delete the current configuration, and all generated files 1120 # make mrproper Delete the current configuration, and all generated files
1121 # make distclean Remove editor backup files, patch leftover files and the like 1121 # make distclean Remove editor backup files, patch leftover files and the like
1122 1122
1123 # Directories & files removed with 'make clean' 1123 # Directories & files removed with 'make clean'
1124 CLEAN_DIRS += $(MODVERDIR) 1124 CLEAN_DIRS += $(MODVERDIR)
1125 1125
1126 # Directories & files removed with 'make mrproper' 1126 # Directories & files removed with 'make mrproper'
1127 MRPROPER_DIRS += include/config usr/include include/generated \ 1127 MRPROPER_DIRS += include/config usr/include include/generated \
1128 arch/*/include/generated .tmp_objdiff 1128 arch/*/include/generated .tmp_objdiff
1129 MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \ 1129 MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
1130 Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 1130 Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1131 signing_key.priv signing_key.x509 x509.genkey \ 1131 signing_key.priv signing_key.x509 x509.genkey \
1132 extra_certificates signing_key.x509.keyid \ 1132 extra_certificates signing_key.x509.keyid \
1133 signing_key.x509.signer include/linux/version.h 1133 signing_key.x509.signer include/linux/version.h
1134 1134
1135 # clean - Delete most, but leave enough to build external modules 1135 # clean - Delete most, but leave enough to build external modules
1136 # 1136 #
1137 clean: rm-dirs := $(CLEAN_DIRS) 1137 clean: rm-dirs := $(CLEAN_DIRS)
1138 clean: rm-files := $(CLEAN_FILES) 1138 clean: rm-files := $(CLEAN_FILES)
1139 clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples) 1139 clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples)
1140 1140
1141 PHONY += $(clean-dirs) clean archclean vmlinuxclean 1141 PHONY += $(clean-dirs) clean archclean vmlinuxclean
1142 $(clean-dirs): 1142 $(clean-dirs):
1143 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1143 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1144 1144
1145 vmlinuxclean: 1145 vmlinuxclean:
1146 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean 1146 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean
1147 1147
1148 clean: archclean vmlinuxclean 1148 clean: archclean vmlinuxclean
1149 1149
1150 # mrproper - Delete all generated files, including .config 1150 # mrproper - Delete all generated files, including .config
1151 # 1151 #
1152 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1152 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1153 mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1153 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1154 mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) 1154 mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)
1155 1155
1156 PHONY += $(mrproper-dirs) mrproper archmrproper 1156 PHONY += $(mrproper-dirs) mrproper archmrproper
1157 $(mrproper-dirs): 1157 $(mrproper-dirs):
1158 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1158 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1159 1159
1160 mrproper: clean archmrproper $(mrproper-dirs) 1160 mrproper: clean archmrproper $(mrproper-dirs)
1161 $(call cmd,rmdirs) 1161 $(call cmd,rmdirs)
1162 $(call cmd,rmfiles) 1162 $(call cmd,rmfiles)
1163 1163
1164 # distclean 1164 # distclean
1165 # 1165 #
1166 PHONY += distclean 1166 PHONY += distclean
1167 1167
1168 distclean: mrproper 1168 distclean: mrproper
1169 @find $(srctree) $(RCS_FIND_IGNORE) \ 1169 @find $(srctree) $(RCS_FIND_IGNORE) \
1170 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1170 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1171 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1171 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1172 -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \ 1172 -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \
1173 -type f -print | xargs rm -f 1173 -type f -print | xargs rm -f
1174 1174
1175 1175
1176 # Packaging of the kernel to various formats 1176 # Packaging of the kernel to various formats
1177 # --------------------------------------------------------------------------- 1177 # ---------------------------------------------------------------------------
1178 # rpm target kept for backward compatibility 1178 # rpm target kept for backward compatibility
1179 package-dir := scripts/package 1179 package-dir := scripts/package
1180 1180
1181 %src-pkg: FORCE 1181 %src-pkg: FORCE
1182 $(Q)$(MAKE) $(build)=$(package-dir) $@ 1182 $(Q)$(MAKE) $(build)=$(package-dir) $@
1183 %pkg: include/config/kernel.release FORCE 1183 %pkg: include/config/kernel.release FORCE
1184 $(Q)$(MAKE) $(build)=$(package-dir) $@ 1184 $(Q)$(MAKE) $(build)=$(package-dir) $@
1185 rpm: include/config/kernel.release FORCE 1185 rpm: include/config/kernel.release FORCE
1186 $(Q)$(MAKE) $(build)=$(package-dir) $@ 1186 $(Q)$(MAKE) $(build)=$(package-dir) $@
1187 1187
1188 1188
1189 # Brief documentation of the typical targets used 1189 # Brief documentation of the typical targets used
1190 # --------------------------------------------------------------------------- 1190 # ---------------------------------------------------------------------------
1191 1191
1192 boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) 1192 boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)
1193 boards := $(notdir $(boards)) 1193 boards := $(notdir $(boards))
1194 board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) 1194 board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))
1195 board-dirs := $(sort $(notdir $(board-dirs:/=))) 1195 board-dirs := $(sort $(notdir $(board-dirs:/=)))
1196 1196
1197 help: 1197 help:
1198 @echo 'Cleaning targets:' 1198 @echo 'Cleaning targets:'
1199 @echo ' clean - Remove most generated files but keep the config and' 1199 @echo ' clean - Remove most generated files but keep the config and'
1200 @echo ' enough build support to build external modules' 1200 @echo ' enough build support to build external modules'
1201 @echo ' mrproper - Remove all generated files + config + various backup files' 1201 @echo ' mrproper - Remove all generated files + config + various backup files'
1202 @echo ' distclean - mrproper + remove editor backup and patch files' 1202 @echo ' distclean - mrproper + remove editor backup and patch files'
1203 @echo '' 1203 @echo ''
1204 @echo 'Configuration targets:' 1204 @echo 'Configuration targets:'
1205 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1205 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1206 @echo '' 1206 @echo ''
1207 @echo 'Other generic targets:' 1207 @echo 'Other generic targets:'
1208 @echo ' all - Build all targets marked with [*]' 1208 @echo ' all - Build all targets marked with [*]'
1209 @echo '* vmlinux - Build the bare kernel' 1209 @echo '* vmlinux - Build the bare kernel'
1210 @echo '* modules - Build all modules' 1210 @echo '* modules - Build all modules'
1211 @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' 1211 @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
1212 @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' 1212 @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'
1213 @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' 1213 @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
1214 @echo ' dir/ - Build all files in dir and below' 1214 @echo ' dir/ - Build all files in dir and below'
1215 @echo ' dir/file.[oisS] - Build specified target only' 1215 @echo ' dir/file.[oisS] - Build specified target only'
1216 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1216 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1217 @echo ' (requires a recent binutils and recent build (System.map))' 1217 @echo ' (requires a recent binutils and recent build (System.map))'
1218 @echo ' dir/file.ko - Build module including final link' 1218 @echo ' dir/file.ko - Build module including final link'
1219 @echo ' modules_prepare - Set up for building external modules' 1219 @echo ' modules_prepare - Set up for building external modules'
1220 @echo ' tags/TAGS - Generate tags file for editors' 1220 @echo ' tags/TAGS - Generate tags file for editors'
1221 @echo ' cscope - Generate cscope index' 1221 @echo ' cscope - Generate cscope index'
1222 @echo ' gtags - Generate GNU GLOBAL index' 1222 @echo ' gtags - Generate GNU GLOBAL index'
1223 @echo ' kernelrelease - Output the release version string' 1223 @echo ' kernelrelease - Output the release version string'
1224 @echo ' kernelversion - Output the version stored in Makefile' 1224 @echo ' kernelversion - Output the version stored in Makefile'
1225 @echo ' image_name - Output the image name' 1225 @echo ' image_name - Output the image name'
1226 @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ 1226 @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
1227 echo ' (default: $(INSTALL_HDR_PATH))'; \ 1227 echo ' (default: $(INSTALL_HDR_PATH))'; \
1228 echo '' 1228 echo ''
1229 @echo 'Static analysers' 1229 @echo 'Static analysers'
1230 @echo ' checkstack - Generate a list of stack hogs' 1230 @echo ' checkstack - Generate a list of stack hogs'
1231 @echo ' namespacecheck - Name space analysis on compiled kernel' 1231 @echo ' namespacecheck - Name space analysis on compiled kernel'
1232 @echo ' versioncheck - Sanity check on version.h usage' 1232 @echo ' versioncheck - Sanity check on version.h usage'
1233 @echo ' includecheck - Check for duplicate included header files' 1233 @echo ' includecheck - Check for duplicate included header files'
1234 @echo ' export_report - List the usages of all exported symbols' 1234 @echo ' export_report - List the usages of all exported symbols'
1235 @echo ' headers_check - Sanity check on exported headers' 1235 @echo ' headers_check - Sanity check on exported headers'
1236 @echo ' headerdep - Detect inclusion cycles in headers' 1236 @echo ' headerdep - Detect inclusion cycles in headers'
1237 @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help 1237 @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help
1238 @echo '' 1238 @echo ''
1239 @echo 'Kernel packaging:' 1239 @echo 'Kernel packaging:'
1240 @$(MAKE) $(build)=$(package-dir) help 1240 @$(MAKE) $(build)=$(package-dir) help
1241 @echo '' 1241 @echo ''
1242 @echo 'Documentation targets:' 1242 @echo 'Documentation targets:'
1243 @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp 1243 @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
1244 @echo '' 1244 @echo ''
1245 @echo 'Architecture specific targets ($(SRCARCH)):' 1245 @echo 'Architecture specific targets ($(SRCARCH)):'
1246 @$(if $(archhelp),$(archhelp),\ 1246 @$(if $(archhelp),$(archhelp),\
1247 echo ' No architecture specific help defined for $(SRCARCH)') 1247 echo ' No architecture specific help defined for $(SRCARCH)')
1248 @echo '' 1248 @echo ''
1249 @$(if $(boards), \ 1249 @$(if $(boards), \
1250 $(foreach b, $(boards), \ 1250 $(foreach b, $(boards), \
1251 printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ 1251 printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \
1252 echo '') 1252 echo '')
1253 @$(if $(board-dirs), \ 1253 @$(if $(board-dirs), \
1254 $(foreach b, $(board-dirs), \ 1254 $(foreach b, $(board-dirs), \
1255 printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ 1255 printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \
1256 printf " %-16s - Show all of the above\\n" help-boards; \ 1256 printf " %-16s - Show all of the above\\n" help-boards; \
1257 echo '') 1257 echo '')
1258 1258
1259 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1259 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1260 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1260 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1261 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1261 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1262 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1262 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1263 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1263 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1264 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1264 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1265 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' 1265 @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where'
1266 @echo ' 1: warnings which may be relevant and do not occur too often' 1266 @echo ' 1: warnings which may be relevant and do not occur too often'
1267 @echo ' 2: warnings which occur quite often but may still be relevant' 1267 @echo ' 2: warnings which occur quite often but may still be relevant'
1268 @echo ' 3: more obscure warnings, can most likely be ignored' 1268 @echo ' 3: more obscure warnings, can most likely be ignored'
1269 @echo ' Multiple levels can be combined with W=12 or W=123' 1269 @echo ' Multiple levels can be combined with W=12 or W=123'
1270 @echo '' 1270 @echo ''
1271 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1271 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1272 @echo 'For further info see the ./README file' 1272 @echo 'For further info see the ./README file'
1273 1273
1274 1274
1275 help-board-dirs := $(addprefix help-,$(board-dirs)) 1275 help-board-dirs := $(addprefix help-,$(board-dirs))
1276 1276
1277 help-boards: $(help-board-dirs) 1277 help-boards: $(help-board-dirs)
1278 1278
1279 boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) 1279 boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))
1280 1280
1281 $(help-board-dirs): help-%: 1281 $(help-board-dirs): help-%:
1282 @echo 'Architecture specific targets ($(SRCARCH) $*):' 1282 @echo 'Architecture specific targets ($(SRCARCH) $*):'
1283 @$(if $(boards-per-dir), \ 1283 @$(if $(boards-per-dir), \
1284 $(foreach b, $(boards-per-dir), \ 1284 $(foreach b, $(boards-per-dir), \
1285 printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ 1285 printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \
1286 echo '') 1286 echo '')
1287 1287
1288 1288
1289 # Documentation targets 1289 # Documentation targets
1290 # --------------------------------------------------------------------------- 1290 # ---------------------------------------------------------------------------
1291 %docs: scripts_basic FORCE 1291 %docs: scripts_basic FORCE
1292 $(Q)$(MAKE) $(build)=scripts build_docproc 1292 $(Q)$(MAKE) $(build)=scripts build_docproc
1293 $(Q)$(MAKE) $(build)=Documentation/DocBook $@ 1293 $(Q)$(MAKE) $(build)=Documentation/DocBook $@
1294 1294
1295 else # KBUILD_EXTMOD 1295 else # KBUILD_EXTMOD
1296 1296
1297 ### 1297 ###
1298 # External module support. 1298 # External module support.
1299 # When building external modules the kernel used as basis is considered 1299 # When building external modules the kernel used as basis is considered
1300 # read-only, and no consistency checks are made and the make 1300 # read-only, and no consistency checks are made and the make
1301 # system is not used on the basis kernel. If updates are required 1301 # system is not used on the basis kernel. If updates are required
1302 # in the basis kernel ordinary make commands (without M=...) must 1302 # in the basis kernel ordinary make commands (without M=...) must
1303 # be used. 1303 # be used.
1304 # 1304 #
1305 # The following are the only valid targets when building external 1305 # The following are the only valid targets when building external
1306 # modules. 1306 # modules.
1307 # make M=dir clean Delete all automatically generated files 1307 # make M=dir clean Delete all automatically generated files
1308 # make M=dir modules Make all modules in specified dir 1308 # make M=dir modules Make all modules in specified dir
1309 # make M=dir Same as 'make M=dir modules' 1309 # make M=dir Same as 'make M=dir modules'
1310 # make M=dir modules_install 1310 # make M=dir modules_install
1311 # Install the modules built in the module directory 1311 # Install the modules built in the module directory
1312 # Assumes install directory is already created 1312 # Assumes install directory is already created
1313 1313
1314 # We are always building modules 1314 # We are always building modules
1315 KBUILD_MODULES := 1 1315 KBUILD_MODULES := 1
1316 PHONY += crmodverdir 1316 PHONY += crmodverdir
1317 crmodverdir: 1317 crmodverdir:
1318 $(cmd_crmodverdir) 1318 $(cmd_crmodverdir)
1319 1319
1320 PHONY += $(objtree)/Module.symvers 1320 PHONY += $(objtree)/Module.symvers
1321 $(objtree)/Module.symvers: 1321 $(objtree)/Module.symvers:
1322 @test -e $(objtree)/Module.symvers || ( \ 1322 @test -e $(objtree)/Module.symvers || ( \
1323 echo; \ 1323 echo; \
1324 echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ 1324 echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \
1325 echo " is missing; modules will have no dependencies and modversions."; \ 1325 echo " is missing; modules will have no dependencies and modversions."; \
1326 echo ) 1326 echo )
1327 1327
1328 module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) 1328 module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
1329 PHONY += $(module-dirs) modules 1329 PHONY += $(module-dirs) modules
1330 $(module-dirs): crmodverdir $(objtree)/Module.symvers 1330 $(module-dirs): crmodverdir $(objtree)/Module.symvers
1331 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) 1331 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
1332 1332
1333 modules: $(module-dirs) 1333 modules: $(module-dirs)
1334 @$(kecho) ' Building modules, stage 2.'; 1334 @$(kecho) ' Building modules, stage 2.';
1335 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1335 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1336 1336
1337 PHONY += modules_install 1337 PHONY += modules_install
1338 modules_install: _emodinst_ _emodinst_post 1338 modules_install: _emodinst_ _emodinst_post
1339 1339
1340 install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) 1340 install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
1341 PHONY += _emodinst_ 1341 PHONY += _emodinst_
1342 _emodinst_: 1342 _emodinst_:
1343 $(Q)mkdir -p $(MODLIB)/$(install-dir) 1343 $(Q)mkdir -p $(MODLIB)/$(install-dir)
1344 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst 1344 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1345 1345
1346 PHONY += _emodinst_post 1346 PHONY += _emodinst_post
1347 _emodinst_post: _emodinst_ 1347 _emodinst_post: _emodinst_
1348 $(call cmd,depmod) 1348 $(call cmd,depmod)
1349 1349
1350 clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) 1350 clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
1351 1351
1352 PHONY += $(clean-dirs) clean 1352 PHONY += $(clean-dirs) clean
1353 $(clean-dirs): 1353 $(clean-dirs):
1354 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1354 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1355 1355
1356 clean: rm-dirs := $(MODVERDIR) 1356 clean: rm-dirs := $(MODVERDIR)
1357 clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers 1357 clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers
1358 1358
1359 help: 1359 help:
1360 @echo ' Building external modules.' 1360 @echo ' Building external modules.'
1361 @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' 1361 @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'
1362 @echo '' 1362 @echo ''
1363 @echo ' modules - default target, build the module(s)' 1363 @echo ' modules - default target, build the module(s)'
1364 @echo ' modules_install - install the module' 1364 @echo ' modules_install - install the module'
1365 @echo ' clean - remove generated files in module directory only' 1365 @echo ' clean - remove generated files in module directory only'
1366 @echo '' 1366 @echo ''
1367 1367
1368 # Dummies... 1368 # Dummies...
1369 PHONY += prepare scripts 1369 PHONY += prepare scripts
1370 prepare: ; 1370 prepare: ;
1371 scripts: ; 1371 scripts: ;
1372 endif # KBUILD_EXTMOD 1372 endif # KBUILD_EXTMOD
1373 1373
1374 clean: $(clean-dirs) 1374 clean: $(clean-dirs)
1375 $(call cmd,rmdirs) 1375 $(call cmd,rmdirs)
1376 $(call cmd,rmfiles) 1376 $(call cmd,rmfiles)
1377 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1377 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1378 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1378 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1379 -o -name '*.ko.*' \ 1379 -o -name '*.ko.*' \
1380 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1380 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1381 -o -name '*.symtypes' -o -name 'modules.order' \ 1381 -o -name '*.symtypes' -o -name 'modules.order' \
1382 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1382 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1383 -o -name '*.gcno' \) -type f -print | xargs rm -f 1383 -o -name '*.gcno' \) -type f -print | xargs rm -f
1384 1384
1385 # Generate tags for editors 1385 # Generate tags for editors
1386 # --------------------------------------------------------------------------- 1386 # ---------------------------------------------------------------------------
1387 quiet_cmd_tags = GEN $@ 1387 quiet_cmd_tags = GEN $@
1388 cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ 1388 cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@
1389 1389
1390 tags TAGS cscope gtags: FORCE 1390 tags TAGS cscope gtags: FORCE
1391 $(call cmd,tags) 1391 $(call cmd,tags)
1392 1392
1393 # Scripts to check various things for consistency 1393 # Scripts to check various things for consistency
1394 # --------------------------------------------------------------------------- 1394 # ---------------------------------------------------------------------------
1395 1395
1396 PHONY += includecheck versioncheck coccicheck namespacecheck export_report 1396 PHONY += includecheck versioncheck coccicheck namespacecheck export_report
1397 1397
1398 includecheck: 1398 includecheck:
1399 find $(srctree)/* $(RCS_FIND_IGNORE) \ 1399 find $(srctree)/* $(RCS_FIND_IGNORE) \
1400 -name '*.[hcS]' -type f -print | sort \ 1400 -name '*.[hcS]' -type f -print | sort \
1401 | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl 1401 | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
1402 1402
1403 versioncheck: 1403 versioncheck:
1404 find $(srctree)/* $(RCS_FIND_IGNORE) \ 1404 find $(srctree)/* $(RCS_FIND_IGNORE) \
1405 -name '*.[hcS]' -type f -print | sort \ 1405 -name '*.[hcS]' -type f -print | sort \
1406 | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl 1406 | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
1407 1407
1408 coccicheck: 1408 coccicheck:
1409 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 1409 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1410 1410
1411 namespacecheck: 1411 namespacecheck:
1412 $(PERL) $(srctree)/scripts/namespace.pl 1412 $(PERL) $(srctree)/scripts/namespace.pl
1413 1413
1414 export_report: 1414 export_report:
1415 $(PERL) $(srctree)/scripts/export_report.pl 1415 $(PERL) $(srctree)/scripts/export_report.pl
1416 1416
1417 endif #ifeq ($(config-targets),1) 1417 endif #ifeq ($(config-targets),1)
1418 endif #ifeq ($(mixed-targets),1) 1418 endif #ifeq ($(mixed-targets),1)
1419 1419
1420 PHONY += checkstack kernelrelease kernelversion image_name 1420 PHONY += checkstack kernelrelease kernelversion image_name
1421 1421
1422 # UML needs a little special treatment here. It wants to use the host 1422 # UML needs a little special treatment here. It wants to use the host
1423 # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone 1423 # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone
1424 # else wants $(ARCH), including people doing cross-builds, which means 1424 # else wants $(ARCH), including people doing cross-builds, which means
1425 # that $(SUBARCH) doesn't work here. 1425 # that $(SUBARCH) doesn't work here.
1426 ifeq ($(ARCH), um) 1426 ifeq ($(ARCH), um)
1427 CHECKSTACK_ARCH := $(SUBARCH) 1427 CHECKSTACK_ARCH := $(SUBARCH)
1428 else 1428 else
1429 CHECKSTACK_ARCH := $(ARCH) 1429 CHECKSTACK_ARCH := $(ARCH)
1430 endif 1430 endif
1431 checkstack: 1431 checkstack:
1432 $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ 1432 $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
1433 $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) 1433 $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
1434 1434
1435 kernelrelease: 1435 kernelrelease:
1436 @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1436 @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1437 1437
1438 kernelversion: 1438 kernelversion:
1439 @echo $(KERNELVERSION) 1439 @echo $(KERNELVERSION)
1440 1440
1441 image_name: 1441 image_name:
1442 @echo $(KBUILD_IMAGE) 1442 @echo $(KBUILD_IMAGE)
1443 1443
1444 # Clear a bunch of variables before executing the submake 1444 # Clear a bunch of variables before executing the submake
1445 tools/: FORCE 1445 tools/: FORCE
1446 $(Q)mkdir -p $(objtree)/tools 1446 $(Q)mkdir -p $(objtree)/tools
1447 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ 1447 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/
1448 1448
1449 tools/%: FORCE 1449 tools/%: FORCE
1450 $(Q)mkdir -p $(objtree)/tools 1450 $(Q)mkdir -p $(objtree)/tools
1451 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $* 1451 $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $*
1452 1452
1453 # Single targets 1453 # Single targets
1454 # --------------------------------------------------------------------------- 1454 # ---------------------------------------------------------------------------
1455 # Single targets are compatible with: 1455 # Single targets are compatible with:
1456 # - build with mixed source and output 1456 # - build with mixed source and output
1457 # - build with separate output dir 'make O=...' 1457 # - build with separate output dir 'make O=...'
1458 # - external modules 1458 # - external modules
1459 # 1459 #
1460 # target-dir => where to store outputfile 1460 # target-dir => where to store outputfile
1461 # build-dir => directory in kernel source tree to use 1461 # build-dir => directory in kernel source tree to use
1462 1462
1463 ifeq ($(KBUILD_EXTMOD),) 1463 ifeq ($(KBUILD_EXTMOD),)
1464 build-dir = $(patsubst %/,%,$(dir $@)) 1464 build-dir = $(patsubst %/,%,$(dir $@))
1465 target-dir = $(dir $@) 1465 target-dir = $(dir $@)
1466 else 1466 else
1467 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1467 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1468 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1468 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1469 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1469 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1470 endif 1470 endif
1471 1471
1472 %.s: %.c prepare scripts FORCE 1472 %.s: %.c prepare scripts FORCE
1473 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1473 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1474 %.i: %.c prepare scripts FORCE 1474 %.i: %.c prepare scripts FORCE
1475 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1475 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1476 %.o: %.c prepare scripts FORCE 1476 %.o: %.c prepare scripts FORCE
1477 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1477 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1478 %.lst: %.c prepare scripts FORCE 1478 %.lst: %.c prepare scripts FORCE
1479 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1479 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1480 %.s: %.S prepare scripts FORCE 1480 %.s: %.S prepare scripts FORCE
1481 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1481 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1482 %.o: %.S prepare scripts FORCE 1482 %.o: %.S prepare scripts FORCE
1483 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1483 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1484 %.symtypes: %.c prepare scripts FORCE 1484 %.symtypes: %.c prepare scripts FORCE
1485 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1485 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1486 1486
1487 # Modules 1487 # Modules
1488 /: prepare scripts FORCE 1488 /: prepare scripts FORCE
1489 $(cmd_crmodverdir) 1489 $(cmd_crmodverdir)
1490 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1490 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1491 $(build)=$(build-dir) 1491 $(build)=$(build-dir)
1492 %/: prepare scripts FORCE 1492 %/: prepare scripts FORCE
1493 $(cmd_crmodverdir) 1493 $(cmd_crmodverdir)
1494 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1494 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1495 $(build)=$(build-dir) 1495 $(build)=$(build-dir)
1496 %.ko: prepare scripts FORCE 1496 %.ko: prepare scripts FORCE
1497 $(cmd_crmodverdir) 1497 $(cmd_crmodverdir)
1498 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1498 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1499 $(build)=$(build-dir) $(@:.ko=.o) 1499 $(build)=$(build-dir) $(@:.ko=.o)
1500 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1500 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1501 1501
1502 # FIXME Should go into a make.lib or something 1502 # FIXME Should go into a make.lib or something
1503 # =========================================================================== 1503 # ===========================================================================
1504 1504
1505 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1505 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1506 cmd_rmdirs = rm -rf $(rm-dirs) 1506 cmd_rmdirs = rm -rf $(rm-dirs)
1507 1507
1508 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1508 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1509 cmd_rmfiles = rm -f $(rm-files) 1509 cmd_rmfiles = rm -f $(rm-files)
1510 1510
1511 # Run depmod only if we have System.map and depmod is executable 1511 # Run depmod only if we have System.map and depmod is executable
1512 quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) 1512 quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)
1513 cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ 1513 cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \
1514 $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))" 1514 $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))"
1515 1515
1516 # Create temporary dir for module support files 1516 # Create temporary dir for module support files
1517 # clean it up only when building all modules 1517 # clean it up only when building all modules
1518 cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ 1518 cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
1519 $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) 1519 $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
1520 1520
1521 # read all saved command lines 1521 # read all saved command lines
1522 1522
1523 targets := $(wildcard $(sort $(targets))) 1523 targets := $(wildcard $(sort $(targets)))
1524 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1524 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1525 1525
1526 ifneq ($(cmd_files),) 1526 ifneq ($(cmd_files),)
1527 $(cmd_files): ; # Do not try to update included dependency files 1527 $(cmd_files): ; # Do not try to update included dependency files
1528 include $(cmd_files) 1528 include $(cmd_files)
1529 endif 1529 endif
1530 1530
1531 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1531 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1532 # Usage: 1532 # Usage:
1533 # $(Q)$(MAKE) $(clean)=dir 1533 # $(Q)$(MAKE) $(clean)=dir
1534 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj 1534 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
1535 1535
1536 endif # skip-makefile 1536 endif # skip-makefile
1537 1537
1538 PHONY += FORCE 1538 PHONY += FORCE
1539 FORCE: 1539 FORCE:
1540 1540
1541 # Declare the contents of the .PHONY variable as phony. We keep that 1541 # Declare the contents of the .PHONY variable as phony. We keep that
1542 # information in a variable so we can use it in if_changed and friends. 1542 # information in a variable so we can use it in if_changed and friends.
1543 .PHONY: $(PHONY) 1543 .PHONY: $(PHONY)
1544 1544