Eric Lee / smarc-ti-linux-kernel

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Commit 066b7ed9558087a7957a1128f27d7a3462ff117f

Authored by Michal Marek
1 parent c2e28dc975
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

kbuild: Do not print the build directory with make -s 

Commit c2e28dc9 (kbuild: Print the name of the build directory) prints
the name of the build directory for O= builds, but we should not be
doing this in make -s mode, so that commands like

  make -s O=<dir> kernelrelease

can be used by scripts. This matches the behavior of make itself, where
the -s option implies --no-print-directory.

Signed-off-by: Michal Marek <mmarek@suse.cz>

Showing 1 changed file with 50 additions and 47 deletions Inline Diff

1 VERSION = 3 1 VERSION = 3
2 PATCHLEVEL = 16 2 PATCHLEVEL = 16
3 SUBLEVEL = 0 3 SUBLEVEL = 0
4 EXTRAVERSION = -rc1 4 EXTRAVERSION = -rc1
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
45 # ---------------------------------------------------------------------------
46 #
47 # Normally, we echo the whole command before executing it. By making
48 # that echo $($(quiet)$(cmd)), we now have the possibility to set
49 # $(quiet) to choose other forms of output instead, e.g.
50 #
51 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
52 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
53 #
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.
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.
58 #
59 # A simple variant is to prefix commands with $(Q) - that's useful
60 # for commands that shall be hidden in non-verbose mode.
61 #
62 # $(Q)ln $@ :<
63 #
64 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
65 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
66 #
44 # To put more focus on warnings, be less verbose as default 67 # To put more focus on warnings, be less verbose as default
45 # Use 'make V=1' to see the full commands 68 # Use 'make V=1' to see the full commands
46 69
47 ifeq ("$(origin V)", "command line") 70 ifeq ("$(origin V)", "command line")
48 KBUILD_VERBOSE = $(V) 71 KBUILD_VERBOSE = $(V)
49 endif 72 endif
50 ifndef KBUILD_VERBOSE 73 ifndef KBUILD_VERBOSE
51 KBUILD_VERBOSE = 0 74 KBUILD_VERBOSE = 0
52 endif 75 endif
53 76
77 ifeq ($(KBUILD_VERBOSE),1)
78 quiet =
79 Q =
80 else
81 quiet=quiet_
82 Q = @
83 endif
84
85 # If the user is running make -s (silent mode), suppress echoing of
86 # commands
87
88 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
89 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
90 quiet=silent_
91 endif
92 else # make-3.8x
93 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
94 quiet=silent_
95 endif
96 endif
97
98 export quiet Q KBUILD_VERBOSE
99
54 # Call a source code checker (by default, "sparse") as part of the 100 # Call a source code checker (by default, "sparse") as part of the
55 # C compilation. 101 # C compilation.
56 # 102 #
57 # Use 'make C=1' to enable checking of only re-compiled files. 103 # Use 'make C=1' to enable checking of only re-compiled files.
58 # Use 'make C=2' to enable checking of *all* source files, regardless 104 # Use 'make C=2' to enable checking of *all* source files, regardless
59 # of whether they are re-compiled or not. 105 # of whether they are re-compiled or not.
60 # 106 #
61 # See the file "Documentation/sparse.txt" for more details, including 107 # See the file "Documentation/sparse.txt" for more details, including
62 # where to get the "sparse" utility. 108 # where to get the "sparse" utility.
63 109
64 ifeq ("$(origin C)", "command line") 110 ifeq ("$(origin C)", "command line")
65 KBUILD_CHECKSRC = $(C) 111 KBUILD_CHECKSRC = $(C)
66 endif 112 endif
67 ifndef KBUILD_CHECKSRC 113 ifndef KBUILD_CHECKSRC
68 KBUILD_CHECKSRC = 0 114 KBUILD_CHECKSRC = 0
69 endif 115 endif
70 116
71 # Use make M=dir to specify directory of external module to build 117 # Use make M=dir to specify directory of external module to build
72 # Old syntax make ... SUBDIRS=$PWD is still supported 118 # Old syntax make ... SUBDIRS=$PWD is still supported
73 # Setting the environment variable KBUILD_EXTMOD take precedence 119 # Setting the environment variable KBUILD_EXTMOD take precedence
74 ifdef SUBDIRS 120 ifdef SUBDIRS
75 KBUILD_EXTMOD ?= $(SUBDIRS) 121 KBUILD_EXTMOD ?= $(SUBDIRS)
76 endif 122 endif
77 123
78 ifeq ("$(origin M)", "command line") 124 ifeq ("$(origin M)", "command line")
79 KBUILD_EXTMOD := $(M) 125 KBUILD_EXTMOD := $(M)
80 endif 126 endif
81 127
82 # kbuild supports saving output files in a separate directory. 128 # kbuild supports saving output files in a separate directory.
83 # To locate output files in a separate directory two syntaxes are supported. 129 # To locate output files in a separate directory two syntaxes are supported.
84 # In both cases the working directory must be the root of the kernel src. 130 # In both cases the working directory must be the root of the kernel src.
85 # 1) O= 131 # 1) O=
86 # Use "make O=dir/to/store/output/files/" 132 # Use "make O=dir/to/store/output/files/"
87 # 133 #
88 # 2) Set KBUILD_OUTPUT 134 # 2) Set KBUILD_OUTPUT
89 # Set the environment variable KBUILD_OUTPUT to point to the directory 135 # Set the environment variable KBUILD_OUTPUT to point to the directory
90 # where the output files shall be placed. 136 # where the output files shall be placed.
91 # export KBUILD_OUTPUT=dir/to/store/output/files/ 137 # export KBUILD_OUTPUT=dir/to/store/output/files/
92 # make 138 # make
93 # 139 #
94 # The O= assignment takes precedence over the KBUILD_OUTPUT environment 140 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
95 # variable. 141 # variable.
96 142
97 143
98 # KBUILD_SRC is set on invocation of make in OBJ directory 144 # KBUILD_SRC is set on invocation of make in OBJ directory
99 # KBUILD_SRC is not intended to be used by the regular user (for now) 145 # KBUILD_SRC is not intended to be used by the regular user (for now)
100 ifeq ($(KBUILD_SRC),) 146 ifeq ($(KBUILD_SRC),)
101 147
102 # OK, Make called in directory where kernel src resides 148 # OK, Make called in directory where kernel src resides
103 # Do we want to locate output files in a separate directory? 149 # Do we want to locate output files in a separate directory?
104 ifeq ("$(origin O)", "command line") 150 ifeq ("$(origin O)", "command line")
105 KBUILD_OUTPUT := $(O) 151 KBUILD_OUTPUT := $(O)
106 endif 152 endif
107 153
108 # 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
109 PHONY := _all 155 PHONY := _all
110 _all: 156 _all:
111 157
112 # Cancel implicit rules on top Makefile 158 # Cancel implicit rules on top Makefile
113 $(CURDIR)/Makefile Makefile: ; 159 $(CURDIR)/Makefile Makefile: ;
114 160
115 ifneq ($(KBUILD_OUTPUT),) 161 ifneq ($(KBUILD_OUTPUT),)
116 # Invoke a second make in the output directory, passing relevant variables 162 # Invoke a second make in the output directory, passing relevant variables
117 # check that the output directory actually exists 163 # check that the output directory actually exists
118 saved-output := $(KBUILD_OUTPUT) 164 saved-output := $(KBUILD_OUTPUT)
119 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ 165 KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \
120 && /bin/pwd) 166 && /bin/pwd)
121 $(if $(KBUILD_OUTPUT),, \ 167 $(if $(KBUILD_OUTPUT),, \
122 $(error failed to create output directory "$(saved-output)")) 168 $(error failed to create output directory "$(saved-output)"))
123 169
124 PHONY += $(MAKECMDGOALS) sub-make 170 PHONY += $(MAKECMDGOALS) sub-make
125 171
126 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 172 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
127 @: 173 @:
128 174
129 # Fake the "Entering directory" message once, so that IDEs/editors are 175 # Fake the "Entering directory" message once, so that IDEs/editors are
130 # able to understand relative filenames. 176 # able to understand relative filenames.
177 echodir := @echo
178 quiet_echodir := @echo
179 silent_echodir := @:
131 sub-make: FORCE 180 sub-make: FORCE
132 @echo "make[1]: Entering directory \`$(KBUILD_OUTPUT)'" 181 $($(quiet)echodir) "make[1]: Entering directory \`$(KBUILD_OUTPUT)'"
133 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ 182 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
134 KBUILD_SRC=$(CURDIR) \ 183 KBUILD_SRC=$(CURDIR) \
135 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ 184 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
136 $(filter-out _all sub-make,$(MAKECMDGOALS)) 185 $(filter-out _all sub-make,$(MAKECMDGOALS))
137 186
138 # Leave processing to above invocation of make 187 # Leave processing to above invocation of make
139 skip-makefile := 1 188 skip-makefile := 1
140 endif # ifneq ($(KBUILD_OUTPUT),) 189 endif # ifneq ($(KBUILD_OUTPUT),)
141 endif # ifeq ($(KBUILD_SRC),) 190 endif # ifeq ($(KBUILD_SRC),)
142 191
143 # 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
144 ifeq ($(skip-makefile),) 193 ifeq ($(skip-makefile),)
145 194
146 # 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
147 # but instead _all depend on modules 196 # but instead _all depend on modules
148 PHONY += all 197 PHONY += all
149 ifeq ($(KBUILD_EXTMOD),) 198 ifeq ($(KBUILD_EXTMOD),)
150 _all: all 199 _all: all
151 else 200 else
152 _all: modules 201 _all: modules
153 endif 202 endif
154 203
155 ifeq ($(KBUILD_SRC),) 204 ifeq ($(KBUILD_SRC),)
156 # building in the source tree 205 # building in the source tree
157 srctree := . 206 srctree := .
158 else 207 else
159 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) 208 ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR)))
160 # building in a subdirectory of the source tree 209 # building in a subdirectory of the source tree
161 srctree := .. 210 srctree := ..
162 else 211 else
163 srctree := $(KBUILD_SRC) 212 srctree := $(KBUILD_SRC)
164 endif 213 endif
165 endif 214 endif
166 objtree := . 215 objtree := .
167 src := $(srctree) 216 src := $(srctree)
168 obj := $(objtree) 217 obj := $(objtree)
169 218
170 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 219 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
171 220
172 export srctree objtree VPATH 221 export srctree objtree VPATH
173 222
174 223
175 # 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
176 # 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
177 # 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,
178 # then ARCH is assigned, getting whatever value it gets normally, and 227 # then ARCH is assigned, getting whatever value it gets normally, and
179 # SUBARCH is subsequently ignored. 228 # SUBARCH is subsequently ignored.
180 229
181 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/ \
182 -e s/sun4u/sparc64/ \ 231 -e s/sun4u/sparc64/ \
183 -e s/arm.*/arm/ -e s/sa110/arm/ \ 232 -e s/arm.*/arm/ -e s/sa110/arm/ \
184 -e s/s390x/s390/ -e s/parisc64/parisc/ \ 233 -e s/s390x/s390/ -e s/parisc64/parisc/ \
185 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ 234 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
186 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ ) 235 -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ )
187 236
188 # Cross compiling and selecting different set of gcc/bin-utils 237 # Cross compiling and selecting different set of gcc/bin-utils
189 # --------------------------------------------------------------------------- 238 # ---------------------------------------------------------------------------
190 # 239 #
191 # When performing cross compilation for other architectures ARCH shall be set 240 # When performing cross compilation for other architectures ARCH shall be set
192 # to the target architecture. (See arch/* for the possibilities). 241 # to the target architecture. (See arch/* for the possibilities).
193 # ARCH can be set during invocation of make: 242 # ARCH can be set during invocation of make:
194 # make ARCH=ia64 243 # make ARCH=ia64
195 # Another way is to have ARCH set in the environment. 244 # Another way is to have ARCH set in the environment.
196 # The default ARCH is the host where make is executed. 245 # The default ARCH is the host where make is executed.
197 246
198 # CROSS_COMPILE specify the prefix used for all executables used 247 # CROSS_COMPILE specify the prefix used for all executables used
199 # during compilation. Only gcc and related bin-utils executables 248 # during compilation. Only gcc and related bin-utils executables
200 # are prefixed with $(CROSS_COMPILE). 249 # are prefixed with $(CROSS_COMPILE).
201 # CROSS_COMPILE can be set on the command line 250 # CROSS_COMPILE can be set on the command line
202 # make CROSS_COMPILE=ia64-linux- 251 # make CROSS_COMPILE=ia64-linux-
203 # Alternatively CROSS_COMPILE can be set in the environment. 252 # Alternatively CROSS_COMPILE can be set in the environment.
204 # 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
205 # "make" in the configured kernel build directory always uses that. 254 # "make" in the configured kernel build directory always uses that.
206 # Default value for CROSS_COMPILE is not to prefix executables 255 # Default value for CROSS_COMPILE is not to prefix executables
207 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile 256 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
208 ARCH ?= $(SUBARCH) 257 ARCH ?= $(SUBARCH)
209 CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) 258 CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%)
210 259
211 # Architecture as present in compile.h 260 # Architecture as present in compile.h
212 UTS_MACHINE := $(ARCH) 261 UTS_MACHINE := $(ARCH)
213 SRCARCH := $(ARCH) 262 SRCARCH := $(ARCH)
214 263
215 # Additional ARCH settings for x86 264 # Additional ARCH settings for x86
216 ifeq ($(ARCH),i386) 265 ifeq ($(ARCH),i386)
217 SRCARCH := x86 266 SRCARCH := x86
218 endif 267 endif
219 ifeq ($(ARCH),x86_64) 268 ifeq ($(ARCH),x86_64)
220 SRCARCH := x86 269 SRCARCH := x86
221 endif 270 endif
222 271
223 # Additional ARCH settings for sparc 272 # Additional ARCH settings for sparc
224 ifeq ($(ARCH),sparc32) 273 ifeq ($(ARCH),sparc32)
225 SRCARCH := sparc 274 SRCARCH := sparc
226 endif 275 endif
227 ifeq ($(ARCH),sparc64) 276 ifeq ($(ARCH),sparc64)
228 SRCARCH := sparc 277 SRCARCH := sparc
229 endif 278 endif
230 279
231 # Additional ARCH settings for sh 280 # Additional ARCH settings for sh
232 ifeq ($(ARCH),sh64) 281 ifeq ($(ARCH),sh64)
233 SRCARCH := sh 282 SRCARCH := sh
234 endif 283 endif
235 284
236 # Additional ARCH settings for tile 285 # Additional ARCH settings for tile
237 ifeq ($(ARCH),tilepro) 286 ifeq ($(ARCH),tilepro)
238 SRCARCH := tile 287 SRCARCH := tile
239 endif 288 endif
240 ifeq ($(ARCH),tilegx) 289 ifeq ($(ARCH),tilegx)
241 SRCARCH := tile 290 SRCARCH := tile
242 endif 291 endif
243 292
244 # Where to locate arch specific headers 293 # Where to locate arch specific headers
245 hdr-arch := $(SRCARCH) 294 hdr-arch := $(SRCARCH)
246 295
247 KCONFIG_CONFIG ?= .config 296 KCONFIG_CONFIG ?= .config
248 export KCONFIG_CONFIG 297 export KCONFIG_CONFIG
249 298
250 # SHELL used by kbuild 299 # SHELL used by kbuild
251 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 300 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
252 else if [ -x /bin/bash ]; then echo /bin/bash; \ 301 else if [ -x /bin/bash ]; then echo /bin/bash; \
253 else echo sh; fi ; fi) 302 else echo sh; fi ; fi)
254 303
255 HOSTCC = gcc 304 HOSTCC = gcc
256 HOSTCXX = g++ 305 HOSTCXX = g++
257 HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer 306 HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
258 HOSTCXXFLAGS = -O2 307 HOSTCXXFLAGS = -O2
259 308
260 ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1) 309 ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1)
261 HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \ 310 HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \
262 -Wno-missing-field-initializers -fno-delete-null-pointer-checks 311 -Wno-missing-field-initializers -fno-delete-null-pointer-checks
263 endif 312 endif
264 313
265 # Decide whether to build built-in, modular, or both. 314 # Decide whether to build built-in, modular, or both.
266 # Normally, just do built-in. 315 # Normally, just do built-in.
267 316
268 KBUILD_MODULES := 317 KBUILD_MODULES :=
269 KBUILD_BUILTIN := 1 318 KBUILD_BUILTIN := 1
270 319
271 # If we have only "make modules", don't compile built-in objects. 320 # If we have only "make modules", don't compile built-in objects.
272 # When we're building modules with modversions, we need to consider 321 # When we're building modules with modversions, we need to consider
273 # the built-in objects during the descend as well, in order to 322 # the built-in objects during the descend as well, in order to
274 # make sure the checksums are up to date before we record them. 323 # make sure the checksums are up to date before we record them.
275 324
276 ifeq ($(MAKECMDGOALS),modules) 325 ifeq ($(MAKECMDGOALS),modules)
277 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 326 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
278 endif 327 endif
279 328
280 # If we have "make <whatever> modules", compile modules 329 # If we have "make <whatever> modules", compile modules
281 # in addition to whatever we do anyway. 330 # in addition to whatever we do anyway.
282 # Just "make" or "make all" shall build modules as well 331 # Just "make" or "make all" shall build modules as well
283 332
284 ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 333 ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
285 KBUILD_MODULES := 1 334 KBUILD_MODULES := 1
286 endif 335 endif
287 336
288 ifeq ($(MAKECMDGOALS),) 337 ifeq ($(MAKECMDGOALS),)
289 KBUILD_MODULES := 1 338 KBUILD_MODULES := 1
290 endif 339 endif
291 340
292 export KBUILD_MODULES KBUILD_BUILTIN 341 export KBUILD_MODULES KBUILD_BUILTIN
293 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 342 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
294
295 # Beautify output
296 # ---------------------------------------------------------------------------
297 #
298 # Normally, we echo the whole command before executing it. By making
299 # that echo $($(quiet)$(cmd)), we now have the possibility to set
300 # $(quiet) to choose other forms of output instead, e.g.
301 #
302 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
303 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
304 #
305 # If $(quiet) is empty, the whole command will be printed.
306 # If it is set to "quiet_", only the short version will be printed.
307 # If it is set to "silent_", nothing will be printed at all, since
308 # the variable $(silent_cmd_cc_o_c) doesn't exist.
309 #
310 # A simple variant is to prefix commands with $(Q) - that's useful
311 # for commands that shall be hidden in non-verbose mode.
312 #
313 # $(Q)ln $@ :<
314 #
315 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
316 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
317
318 ifeq ($(KBUILD_VERBOSE),1)
319 quiet =
320 Q =
321 else
322 quiet=quiet_
323 Q = @
324 endif
325
326 # If the user is running make -s (silent mode), suppress echoing of
327 # commands
328
329 ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4
330 ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),)
331 quiet=silent_
332 endif
333 else # make-3.8x
334 ifneq ($(filter s% -s%,$(MAKEFLAGS)),)
335 quiet=silent_
336 endif
337 endif
338
339 export quiet Q KBUILD_VERBOSE
340 343
341 ifneq ($(CC),) 344 ifneq ($(CC),)
342 ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1) 345 ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1)
343 COMPILER := clang 346 COMPILER := clang
344 else 347 else
345 COMPILER := gcc 348 COMPILER := gcc
346 endif 349 endif
347 export COMPILER 350 export COMPILER
348 endif 351 endif
349 352
350 # Look for make include files relative to root of kernel src 353 # Look for make include files relative to root of kernel src
351 MAKEFLAGS += --include-dir=$(srctree) 354 MAKEFLAGS += --include-dir=$(srctree)
352 355
353 # 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).
354 $(srctree)/scripts/Kbuild.include: ; 357 $(srctree)/scripts/Kbuild.include: ;
355 include $(srctree)/scripts/Kbuild.include 358 include $(srctree)/scripts/Kbuild.include
356 359
357 # Make variables (CC, etc...) 360 # Make variables (CC, etc...)
358 AS = $(CROSS_COMPILE)as 361 AS = $(CROSS_COMPILE)as
359 LD = $(CROSS_COMPILE)ld 362 LD = $(CROSS_COMPILE)ld
360 CC = $(CROSS_COMPILE)gcc 363 CC = $(CROSS_COMPILE)gcc
361 CPP = $(CC) -E 364 CPP = $(CC) -E
362 AR = $(CROSS_COMPILE)ar 365 AR = $(CROSS_COMPILE)ar
363 NM = $(CROSS_COMPILE)nm 366 NM = $(CROSS_COMPILE)nm
364 STRIP = $(CROSS_COMPILE)strip 367 STRIP = $(CROSS_COMPILE)strip
365 OBJCOPY = $(CROSS_COMPILE)objcopy 368 OBJCOPY = $(CROSS_COMPILE)objcopy
366 OBJDUMP = $(CROSS_COMPILE)objdump 369 OBJDUMP = $(CROSS_COMPILE)objdump
367 AWK = awk 370 AWK = awk
368 GENKSYMS = scripts/genksyms/genksyms 371 GENKSYMS = scripts/genksyms/genksyms
369 INSTALLKERNEL := installkernel 372 INSTALLKERNEL := installkernel
370 DEPMOD = /sbin/depmod 373 DEPMOD = /sbin/depmod
371 PERL = perl 374 PERL = perl
372 CHECK = sparse 375 CHECK = sparse
373 376
374 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ 377 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
375 -Wbitwise -Wno-return-void $(CF) 378 -Wbitwise -Wno-return-void $(CF)
376 CFLAGS_MODULE = 379 CFLAGS_MODULE =
377 AFLAGS_MODULE = 380 AFLAGS_MODULE =
378 LDFLAGS_MODULE = 381 LDFLAGS_MODULE =
379 CFLAGS_KERNEL = 382 CFLAGS_KERNEL =
380 AFLAGS_KERNEL = 383 AFLAGS_KERNEL =
381 CFLAGS_GCOV = -fprofile-arcs -ftest-coverage 384 CFLAGS_GCOV = -fprofile-arcs -ftest-coverage
382 385
383 386
384 # Use USERINCLUDE when you must reference the UAPI directories only. 387 # Use USERINCLUDE when you must reference the UAPI directories only.
385 USERINCLUDE := \ 388 USERINCLUDE := \
386 -I$(srctree)/arch/$(hdr-arch)/include/uapi \ 389 -I$(srctree)/arch/$(hdr-arch)/include/uapi \
387 -Iarch/$(hdr-arch)/include/generated/uapi \ 390 -Iarch/$(hdr-arch)/include/generated/uapi \
388 -I$(srctree)/include/uapi \ 391 -I$(srctree)/include/uapi \
389 -Iinclude/generated/uapi \ 392 -Iinclude/generated/uapi \
390 -include $(srctree)/include/linux/kconfig.h 393 -include $(srctree)/include/linux/kconfig.h
391 394
392 # Use LINUXINCLUDE when you must reference the include/ directory. 395 # Use LINUXINCLUDE when you must reference the include/ directory.
393 # Needed to be compatible with the O= option 396 # Needed to be compatible with the O= option
394 LINUXINCLUDE := \ 397 LINUXINCLUDE := \
395 -I$(srctree)/arch/$(hdr-arch)/include \ 398 -I$(srctree)/arch/$(hdr-arch)/include \
396 -Iarch/$(hdr-arch)/include/generated \ 399 -Iarch/$(hdr-arch)/include/generated \
397 $(if $(KBUILD_SRC), -I$(srctree)/include) \ 400 $(if $(KBUILD_SRC), -I$(srctree)/include) \
398 -Iinclude \ 401 -Iinclude \
399 $(USERINCLUDE) 402 $(USERINCLUDE)
400 403
401 KBUILD_CPPFLAGS := -D__KERNEL__ 404 KBUILD_CPPFLAGS := -D__KERNEL__
402 405
403 KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ 406 KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
404 -fno-strict-aliasing -fno-common \ 407 -fno-strict-aliasing -fno-common \
405 -Werror-implicit-function-declaration \ 408 -Werror-implicit-function-declaration \
406 -Wno-format-security 409 -Wno-format-security
407 410
408 KBUILD_AFLAGS_KERNEL := 411 KBUILD_AFLAGS_KERNEL :=
409 KBUILD_CFLAGS_KERNEL := 412 KBUILD_CFLAGS_KERNEL :=
410 KBUILD_AFLAGS := -D__ASSEMBLY__ 413 KBUILD_AFLAGS := -D__ASSEMBLY__
411 KBUILD_AFLAGS_MODULE := -DMODULE 414 KBUILD_AFLAGS_MODULE := -DMODULE
412 KBUILD_CFLAGS_MODULE := -DMODULE 415 KBUILD_CFLAGS_MODULE := -DMODULE
413 KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds 416 KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds
414 417
415 # Read KERNELRELEASE from include/config/kernel.release (if it exists) 418 # Read KERNELRELEASE from include/config/kernel.release (if it exists)
416 KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) 419 KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
417 KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) 420 KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION)
418 421
419 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION 422 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
420 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
421 export CPP AR NM STRIP OBJCOPY OBJDUMP 424 export CPP AR NM STRIP OBJCOPY OBJDUMP
422 export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE 425 export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE
423 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS 426 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
424 427
425 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS 428 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
426 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV 429 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV
427 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE 430 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
428 export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE 431 export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE
429 export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL 432 export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL
430 export KBUILD_ARFLAGS 433 export KBUILD_ARFLAGS
431 434
432 # When compiling out-of-tree modules, put MODVERDIR in the module 435 # When compiling out-of-tree modules, put MODVERDIR in the module
433 # tree rather than in the kernel tree. The kernel tree might 436 # tree rather than in the kernel tree. The kernel tree might
434 # even be read-only. 437 # even be read-only.
435 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 438 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
436 439
437 # Files to ignore in find ... statements 440 # Files to ignore in find ... statements
438 441
439 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ 442 export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \
440 -name CVS -o -name .pc -o -name .hg -o -name .git \) \ 443 -name CVS -o -name .pc -o -name .hg -o -name .git \) \
441 -prune -o 444 -prune -o
442 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ 445 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \
443 --exclude CVS --exclude .pc --exclude .hg --exclude .git 446 --exclude CVS --exclude .pc --exclude .hg --exclude .git
444 447
445 # =========================================================================== 448 # ===========================================================================
446 # Rules shared between *config targets and build targets 449 # Rules shared between *config targets and build targets
447 450
448 # Basic helpers built in scripts/ 451 # Basic helpers built in scripts/
449 PHONY += scripts_basic 452 PHONY += scripts_basic
450 scripts_basic: 453 scripts_basic:
451 $(Q)$(MAKE) $(build)=scripts/basic 454 $(Q)$(MAKE) $(build)=scripts/basic
452 $(Q)rm -f .tmp_quiet_recordmcount 455 $(Q)rm -f .tmp_quiet_recordmcount
453 456
454 # To avoid any implicit rule to kick in, define an empty command. 457 # To avoid any implicit rule to kick in, define an empty command.
455 scripts/basic/%: scripts_basic ; 458 scripts/basic/%: scripts_basic ;
456 459
457 PHONY += outputmakefile 460 PHONY += outputmakefile
458 # outputmakefile generates a Makefile in the output directory, if using a 461 # outputmakefile generates a Makefile in the output directory, if using a
459 # separate output directory. This allows convenient use of make in the 462 # separate output directory. This allows convenient use of make in the
460 # output directory. 463 # output directory.
461 outputmakefile: 464 outputmakefile:
462 ifneq ($(KBUILD_SRC),) 465 ifneq ($(KBUILD_SRC),)
463 $(Q)ln -fsn $(srctree) source 466 $(Q)ln -fsn $(srctree) source
464 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 467 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
465 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 468 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
466 endif 469 endif
467 470
468 # Support for using generic headers in asm-generic 471 # Support for using generic headers in asm-generic
469 PHONY += asm-generic 472 PHONY += asm-generic
470 asm-generic: 473 asm-generic:
471 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ 474 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
472 src=asm obj=arch/$(SRCARCH)/include/generated/asm 475 src=asm obj=arch/$(SRCARCH)/include/generated/asm
473 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ 476 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \
474 src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm 477 src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm
475 478
476 # 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
477 # catch them early, and hand them over to scripts/kconfig/Makefile 480 # catch them early, and hand them over to scripts/kconfig/Makefile
478 # It is allowed to specify more targets when calling make, including 481 # It is allowed to specify more targets when calling make, including
479 # mixing *config targets and build targets. 482 # mixing *config targets and build targets.
480 # For example 'make oldconfig all'. 483 # For example 'make oldconfig all'.
481 # Detect when mixed targets is specified, and make a second invocation 484 # Detect when mixed targets is specified, and make a second invocation
482 # 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).
483 486
484 version_h := include/generated/uapi/linux/version.h 487 version_h := include/generated/uapi/linux/version.h
485 488
486 no-dot-config-targets := clean mrproper distclean \ 489 no-dot-config-targets := clean mrproper distclean \
487 cscope gtags TAGS tags help %docs check% coccicheck \ 490 cscope gtags TAGS tags help %docs check% coccicheck \
488 $(version_h) headers_% archheaders archscripts \ 491 $(version_h) headers_% archheaders archscripts \
489 kernelversion %src-pkg 492 kernelversion %src-pkg
490 493
491 config-targets := 0 494 config-targets := 0
492 mixed-targets := 0 495 mixed-targets := 0
493 dot-config := 1 496 dot-config := 1
494 497
495 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 498 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
496 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 499 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
497 dot-config := 0 500 dot-config := 0
498 endif 501 endif
499 endif 502 endif
500 503
501 ifeq ($(KBUILD_EXTMOD),) 504 ifeq ($(KBUILD_EXTMOD),)
502 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 505 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
503 config-targets := 1 506 config-targets := 1
504 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 507 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
505 mixed-targets := 1 508 mixed-targets := 1
506 endif 509 endif
507 endif 510 endif
508 endif 511 endif
509 512
510 ifeq ($(mixed-targets),1) 513 ifeq ($(mixed-targets),1)
511 # =========================================================================== 514 # ===========================================================================
512 # We're called with mixed targets (*config and build targets). 515 # We're called with mixed targets (*config and build targets).
513 # Handle them one by one. 516 # Handle them one by one.
514 517
515 PHONY += $(MAKECMDGOALS) __build_one_by_one 518 PHONY += $(MAKECMDGOALS) __build_one_by_one
516 519
517 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one 520 $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one
518 @: 521 @:
519 522
520 __build_one_by_one: 523 __build_one_by_one:
521 $(Q)set -e; \ 524 $(Q)set -e; \
522 for i in $(MAKECMDGOALS); do \ 525 for i in $(MAKECMDGOALS); do \
523 $(MAKE) -f $(srctree)/Makefile $$i; \ 526 $(MAKE) -f $(srctree)/Makefile $$i; \
524 done 527 done
525 528
526 else 529 else
527 ifeq ($(config-targets),1) 530 ifeq ($(config-targets),1)
528 # =========================================================================== 531 # ===========================================================================
529 # *config targets only - make sure prerequisites are updated, and descend 532 # *config targets only - make sure prerequisites are updated, and descend
530 # in scripts/kconfig to make the *config target 533 # in scripts/kconfig to make the *config target
531 534
532 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. 535 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
533 # KBUILD_DEFCONFIG may point out an alternative default configuration 536 # KBUILD_DEFCONFIG may point out an alternative default configuration
534 # used for 'make defconfig' 537 # used for 'make defconfig'
535 include $(srctree)/arch/$(SRCARCH)/Makefile 538 include $(srctree)/arch/$(SRCARCH)/Makefile
536 export KBUILD_DEFCONFIG KBUILD_KCONFIG 539 export KBUILD_DEFCONFIG KBUILD_KCONFIG
537 540
538 config: scripts_basic outputmakefile FORCE 541 config: scripts_basic outputmakefile FORCE
539 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 542 $(Q)$(MAKE) $(build)=scripts/kconfig $@
540 543
541 %config: scripts_basic outputmakefile FORCE 544 %config: scripts_basic outputmakefile FORCE
542 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 545 $(Q)$(MAKE) $(build)=scripts/kconfig $@
543 546
544 else 547 else
545 # =========================================================================== 548 # ===========================================================================
546 # Build targets only - this includes vmlinux, arch specific targets, clean 549 # Build targets only - this includes vmlinux, arch specific targets, clean
547 # targets and others. In general all targets except *config targets. 550 # targets and others. In general all targets except *config targets.
548 551
549 ifeq ($(KBUILD_EXTMOD),) 552 ifeq ($(KBUILD_EXTMOD),)
550 # Additional helpers built in scripts/ 553 # Additional helpers built in scripts/
551 # 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
552 # in parallel 555 # in parallel
553 PHONY += scripts 556 PHONY += scripts
554 scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \ 557 scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \
555 asm-generic 558 asm-generic
556 $(Q)$(MAKE) $(build)=$(@) 559 $(Q)$(MAKE) $(build)=$(@)
557 560
558 # Objects we will link into vmlinux / subdirs we need to visit 561 # Objects we will link into vmlinux / subdirs we need to visit
559 init-y := init/ 562 init-y := init/
560 drivers-y := drivers/ sound/ firmware/ 563 drivers-y := drivers/ sound/ firmware/
561 net-y := net/ 564 net-y := net/
562 libs-y := lib/ 565 libs-y := lib/
563 core-y := usr/ 566 core-y := usr/
564 endif # KBUILD_EXTMOD 567 endif # KBUILD_EXTMOD
565 568
566 ifeq ($(dot-config),1) 569 ifeq ($(dot-config),1)
567 # Read in config 570 # Read in config
568 -include include/config/auto.conf 571 -include include/config/auto.conf
569 572
570 ifeq ($(KBUILD_EXTMOD),) 573 ifeq ($(KBUILD_EXTMOD),)
571 # Read in dependencies to all Kconfig* files, make sure to run 574 # Read in dependencies to all Kconfig* files, make sure to run
572 # oldconfig if changes are detected. 575 # oldconfig if changes are detected.
573 -include include/config/auto.conf.cmd 576 -include include/config/auto.conf.cmd
574 577
575 # 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
576 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 579 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
577 580
578 # If .config is newer than include/config/auto.conf, someone tinkered 581 # If .config is newer than include/config/auto.conf, someone tinkered
579 # with it and forgot to run make oldconfig. 582 # with it and forgot to run make oldconfig.
580 # 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
581 # 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
582 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 585 include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
583 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 586 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
584 else 587 else
585 # 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
586 # 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
587 PHONY += include/config/auto.conf 590 PHONY += include/config/auto.conf
588 591
589 include/config/auto.conf: 592 include/config/auto.conf:
590 $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ 593 $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \
591 echo >&2; \ 594 echo >&2; \
592 echo >&2 " ERROR: Kernel configuration is invalid."; \ 595 echo >&2 " ERROR: Kernel configuration is invalid."; \
593 echo >&2 " include/generated/autoconf.h or $@ are missing.";\ 596 echo >&2 " include/generated/autoconf.h or $@ are missing.";\
594 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."; \
595 echo >&2 ; \ 598 echo >&2 ; \
596 /bin/false) 599 /bin/false)
597 600
598 endif # KBUILD_EXTMOD 601 endif # KBUILD_EXTMOD
599 602
600 else 603 else
601 # Dummy target needed, because used as prerequisite 604 # Dummy target needed, because used as prerequisite
602 include/config/auto.conf: ; 605 include/config/auto.conf: ;
603 endif # $(dot-config) 606 endif # $(dot-config)
604 607
605 # 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
606 # command line. 609 # command line.
607 # 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
608 # Defaults to vmlinux, but the arch makefile usually adds further targets 611 # Defaults to vmlinux, but the arch makefile usually adds further targets
609 all: vmlinux 612 all: vmlinux
610 613
611 include $(srctree)/arch/$(SRCARCH)/Makefile 614 include $(srctree)/arch/$(SRCARCH)/Makefile
612 615
613 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,) 616 KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,)
614 617
615 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 618 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
616 KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) 619 KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,)
617 else 620 else
618 KBUILD_CFLAGS += -O2 621 KBUILD_CFLAGS += -O2
619 endif 622 endif
620 623
621 ifdef CONFIG_READABLE_ASM 624 ifdef CONFIG_READABLE_ASM
622 # Disable optimizations that make assembler listings hard to read. 625 # Disable optimizations that make assembler listings hard to read.
623 # reorder blocks reorders the control in the function 626 # reorder blocks reorders the control in the function
624 # ipa clone creates specialized cloned functions 627 # ipa clone creates specialized cloned functions
625 # partial inlining inlines only parts of functions 628 # partial inlining inlines only parts of functions
626 KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ 629 KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \
627 $(call cc-option,-fno-ipa-cp-clone,) \ 630 $(call cc-option,-fno-ipa-cp-clone,) \
628 $(call cc-option,-fno-partial-inlining) 631 $(call cc-option,-fno-partial-inlining)
629 endif 632 endif
630 633
631 ifneq ($(CONFIG_FRAME_WARN),0) 634 ifneq ($(CONFIG_FRAME_WARN),0)
632 KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) 635 KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
633 endif 636 endif
634 637
635 # Handle stack protector mode. 638 # Handle stack protector mode.
636 ifdef CONFIG_CC_STACKPROTECTOR_REGULAR 639 ifdef CONFIG_CC_STACKPROTECTOR_REGULAR
637 stackp-flag := -fstack-protector 640 stackp-flag := -fstack-protector
638 ifeq ($(call cc-option, $(stackp-flag)),) 641 ifeq ($(call cc-option, $(stackp-flag)),)
639 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \ 642 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \
640 -fstack-protector not supported by compiler) 643 -fstack-protector not supported by compiler)
641 endif 644 endif
642 else 645 else
643 ifdef CONFIG_CC_STACKPROTECTOR_STRONG 646 ifdef CONFIG_CC_STACKPROTECTOR_STRONG
644 stackp-flag := -fstack-protector-strong 647 stackp-flag := -fstack-protector-strong
645 ifeq ($(call cc-option, $(stackp-flag)),) 648 ifeq ($(call cc-option, $(stackp-flag)),)
646 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \ 649 $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \
647 -fstack-protector-strong not supported by compiler) 650 -fstack-protector-strong not supported by compiler)
648 endif 651 endif
649 else 652 else
650 # Force off for distro compilers that enable stack protector by default. 653 # Force off for distro compilers that enable stack protector by default.
651 stackp-flag := $(call cc-option, -fno-stack-protector) 654 stackp-flag := $(call cc-option, -fno-stack-protector)
652 endif 655 endif
653 endif 656 endif
654 KBUILD_CFLAGS += $(stackp-flag) 657 KBUILD_CFLAGS += $(stackp-flag)
655 658
656 ifeq ($(COMPILER),clang) 659 ifeq ($(COMPILER),clang)
657 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) 660 KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
658 KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) 661 KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,)
659 KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) 662 KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable)
660 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) 663 KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
661 KBUILD_CFLAGS += $(call cc-disable-warning, gnu) 664 KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
662 # Quiet clang warning: comparison of unsigned expression < 0 is always false 665 # Quiet clang warning: comparison of unsigned expression < 0 is always false
663 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) 666 KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare)
664 # 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
665 # 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.
666 # See modpost pattern 2 669 # See modpost pattern 2
667 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) 670 KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,)
668 else 671 else
669 672
670 # This warning generated too much noise in a regular build. 673 # This warning generated too much noise in a regular build.
671 # 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)
672 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) 675 KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
673 endif 676 endif
674 677
675 ifdef CONFIG_FRAME_POINTER 678 ifdef CONFIG_FRAME_POINTER
676 KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls 679 KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
677 else 680 else
678 # 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
679 # pointers. For those, we don't have FUNCTION_TRACER automatically 682 # pointers. For those, we don't have FUNCTION_TRACER automatically
680 # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is 683 # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is
681 # 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
682 # -fomit-frame-pointer with FUNCTION_TRACER. 685 # -fomit-frame-pointer with FUNCTION_TRACER.
683 ifndef CONFIG_FUNCTION_TRACER 686 ifndef CONFIG_FUNCTION_TRACER
684 KBUILD_CFLAGS += -fomit-frame-pointer 687 KBUILD_CFLAGS += -fomit-frame-pointer
685 endif 688 endif
686 endif 689 endif
687 690
688 ifdef CONFIG_DEBUG_INFO 691 ifdef CONFIG_DEBUG_INFO
689 KBUILD_CFLAGS += -g 692 KBUILD_CFLAGS += -g
690 KBUILD_AFLAGS += -Wa,-gdwarf-2 693 KBUILD_AFLAGS += -Wa,-gdwarf-2
691 endif 694 endif
692 695
693 ifdef CONFIG_DEBUG_INFO_REDUCED 696 ifdef CONFIG_DEBUG_INFO_REDUCED
694 KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ 697 KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \
695 $(call cc-option,-fno-var-tracking) 698 $(call cc-option,-fno-var-tracking)
696 endif 699 endif
697 700
698 ifdef CONFIG_FUNCTION_TRACER 701 ifdef CONFIG_FUNCTION_TRACER
699 ifdef CONFIG_HAVE_FENTRY 702 ifdef CONFIG_HAVE_FENTRY
700 CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) 703 CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY)
701 endif 704 endif
702 KBUILD_CFLAGS += -pg $(CC_USING_FENTRY) 705 KBUILD_CFLAGS += -pg $(CC_USING_FENTRY)
703 KBUILD_AFLAGS += $(CC_USING_FENTRY) 706 KBUILD_AFLAGS += $(CC_USING_FENTRY)
704 ifdef CONFIG_DYNAMIC_FTRACE 707 ifdef CONFIG_DYNAMIC_FTRACE
705 ifdef CONFIG_HAVE_C_RECORDMCOUNT 708 ifdef CONFIG_HAVE_C_RECORDMCOUNT
706 BUILD_C_RECORDMCOUNT := y 709 BUILD_C_RECORDMCOUNT := y
707 export BUILD_C_RECORDMCOUNT 710 export BUILD_C_RECORDMCOUNT
708 endif 711 endif
709 endif 712 endif
710 endif 713 endif
711 714
712 # We trigger additional mismatches with less inlining 715 # We trigger additional mismatches with less inlining
713 ifdef CONFIG_DEBUG_SECTION_MISMATCH 716 ifdef CONFIG_DEBUG_SECTION_MISMATCH
714 KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) 717 KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
715 endif 718 endif
716 719
717 # 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
718 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 721 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
719 CHECKFLAGS += $(NOSTDINC_FLAGS) 722 CHECKFLAGS += $(NOSTDINC_FLAGS)
720 723
721 # warn about C99 declaration after statement 724 # warn about C99 declaration after statement
722 KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) 725 KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
723 726
724 # disable pointer signed / unsigned warnings in gcc 4.0 727 # disable pointer signed / unsigned warnings in gcc 4.0
725 KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) 728 KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign)
726 729
727 # disable invalid "can't wrap" optimizations for signed / pointers 730 # disable invalid "can't wrap" optimizations for signed / pointers
728 KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) 731 KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow)
729 732
730 # conserve stack if available 733 # conserve stack if available
731 KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) 734 KBUILD_CFLAGS += $(call cc-option,-fconserve-stack)
732 735
733 # disallow errors like 'EXPORT_GPL(foo);' with missing header 736 # disallow errors like 'EXPORT_GPL(foo);' with missing header
734 KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) 737 KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int)
735 738
736 # require functions to have arguments in prototypes, not empty 'int foo()' 739 # require functions to have arguments in prototypes, not empty 'int foo()'
737 KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) 740 KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes)
738 741
739 # Prohibit date/time macros, which would make the build non-deterministic 742 # Prohibit date/time macros, which would make the build non-deterministic
740 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) 743 KBUILD_CFLAGS += $(call cc-option,-Werror=date-time)
741 744
742 # use the deterministic mode of AR if available 745 # use the deterministic mode of AR if available
743 KBUILD_ARFLAGS := $(call ar-option,D) 746 KBUILD_ARFLAGS := $(call ar-option,D)
744 747
745 # check for 'asm goto' 748 # check for 'asm goto'
746 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) 749 ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y)
747 KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO 750 KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO
748 endif 751 endif
749 752
750 include $(srctree)/scripts/Makefile.extrawarn 753 include $(srctree)/scripts/Makefile.extrawarn
751 754
752 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 755 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
753 KBUILD_CPPFLAGS += $(KCPPFLAGS) 756 KBUILD_CPPFLAGS += $(KCPPFLAGS)
754 KBUILD_AFLAGS += $(KAFLAGS) 757 KBUILD_AFLAGS += $(KAFLAGS)
755 KBUILD_CFLAGS += $(KCFLAGS) 758 KBUILD_CFLAGS += $(KCFLAGS)
756 759
757 # Use --build-id when available. 760 # Use --build-id when available.
758 LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ 761 LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
759 $(call cc-ldoption, -Wl$(comma)--build-id,)) 762 $(call cc-ldoption, -Wl$(comma)--build-id,))
760 KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) 763 KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
761 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) 764 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
762 765
763 ifeq ($(CONFIG_STRIP_ASM_SYMS),y) 766 ifeq ($(CONFIG_STRIP_ASM_SYMS),y)
764 LDFLAGS_vmlinux += $(call ld-option, -X,) 767 LDFLAGS_vmlinux += $(call ld-option, -X,)
765 endif 768 endif
766 769
767 # Default kernel image to build when no specific target is given. 770 # Default kernel image to build when no specific target is given.
768 # KBUILD_IMAGE may be overruled on the command line or 771 # KBUILD_IMAGE may be overruled on the command line or
769 # set in the environment 772 # set in the environment
770 # Also any assignments in arch/$(ARCH)/Makefile take precedence over 773 # Also any assignments in arch/$(ARCH)/Makefile take precedence over
771 # this default value 774 # this default value
772 export KBUILD_IMAGE ?= vmlinux 775 export KBUILD_IMAGE ?= vmlinux
773 776
774 # 777 #
775 # 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
776 # 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
777 export INSTALL_PATH ?= /boot 780 export INSTALL_PATH ?= /boot
778 781
779 # 782 #
780 # 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.
781 # 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
782 # 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
783 # 786 #
784 export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) 787 export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE)
785 788
786 # 789 #
787 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory 790 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
788 # relocations required by build roots. This is not defined in the 791 # relocations required by build roots. This is not defined in the
789 # makefile but the argument can be passed to make if needed. 792 # makefile but the argument can be passed to make if needed.
790 # 793 #
791 794
792 MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) 795 MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
793 export MODLIB 796 export MODLIB
794 797
795 # 798 #
796 # INSTALL_MOD_STRIP, if defined, will cause modules to be 799 # INSTALL_MOD_STRIP, if defined, will cause modules to be
797 # 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
798 # the default option --strip-debug will be used. Otherwise, 801 # the default option --strip-debug will be used. Otherwise,
799 # 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.
800 803
801 ifdef INSTALL_MOD_STRIP 804 ifdef INSTALL_MOD_STRIP
802 ifeq ($(INSTALL_MOD_STRIP),1) 805 ifeq ($(INSTALL_MOD_STRIP),1)
803 mod_strip_cmd = $(STRIP) --strip-debug 806 mod_strip_cmd = $(STRIP) --strip-debug
804 else 807 else
805 mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) 808 mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
806 endif # INSTALL_MOD_STRIP=1 809 endif # INSTALL_MOD_STRIP=1
807 else 810 else
808 mod_strip_cmd = true 811 mod_strip_cmd = true
809 endif # INSTALL_MOD_STRIP 812 endif # INSTALL_MOD_STRIP
810 export mod_strip_cmd 813 export mod_strip_cmd
811 814
812 # Select initial ramdisk compression format, default is gzip(1). 815 # Select initial ramdisk compression format, default is gzip(1).
813 # This shall be used by the dracut(8) tool while creating an initramfs image. 816 # This shall be used by the dracut(8) tool while creating an initramfs image.
814 # 817 #
815 INITRD_COMPRESS-y := gzip 818 INITRD_COMPRESS-y := gzip
816 INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2 819 INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2
817 INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma 820 INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma
818 INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz 821 INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz
819 INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo 822 INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo
820 INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4 823 INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4
821 # do not export INITRD_COMPRESS, since we didn't actually 824 # do not export INITRD_COMPRESS, since we didn't actually
822 # choose a sane default compression above. 825 # choose a sane default compression above.
823 # export INITRD_COMPRESS := $(INITRD_COMPRESS-y) 826 # export INITRD_COMPRESS := $(INITRD_COMPRESS-y)
824 827
825 ifdef CONFIG_MODULE_SIG_ALL 828 ifdef CONFIG_MODULE_SIG_ALL
826 MODSECKEY = ./signing_key.priv 829 MODSECKEY = ./signing_key.priv
827 MODPUBKEY = ./signing_key.x509 830 MODPUBKEY = ./signing_key.x509
828 export MODPUBKEY 831 export MODPUBKEY
829 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) $(MODPUBKEY)
830 else 833 else
831 mod_sign_cmd = true 834 mod_sign_cmd = true
832 endif 835 endif
833 export mod_sign_cmd 836 export mod_sign_cmd
834 837
835 838
836 ifeq ($(KBUILD_EXTMOD),) 839 ifeq ($(KBUILD_EXTMOD),)
837 core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ 840 core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
838 841
839 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ 842 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
840 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ 843 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
841 $(net-y) $(net-m) $(libs-y) $(libs-m))) 844 $(net-y) $(net-m) $(libs-y) $(libs-m)))
842 845
843 vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ 846 vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
844 $(init-n) $(init-) \ 847 $(init-n) $(init-) \
845 $(core-n) $(core-) $(drivers-n) $(drivers-) \ 848 $(core-n) $(core-) $(drivers-n) $(drivers-) \
846 $(net-n) $(net-) $(libs-n) $(libs-)))) 849 $(net-n) $(net-) $(libs-n) $(libs-))))
847 850
848 init-y := $(patsubst %/, %/built-in.o, $(init-y)) 851 init-y := $(patsubst %/, %/built-in.o, $(init-y))
849 core-y := $(patsubst %/, %/built-in.o, $(core-y)) 852 core-y := $(patsubst %/, %/built-in.o, $(core-y))
850 drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) 853 drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))
851 net-y := $(patsubst %/, %/built-in.o, $(net-y)) 854 net-y := $(patsubst %/, %/built-in.o, $(net-y))
852 libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) 855 libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
853 libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) 856 libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))
854 libs-y := $(libs-y1) $(libs-y2) 857 libs-y := $(libs-y1) $(libs-y2)
855 858
856 # Externally visible symbols (used by link-vmlinux.sh) 859 # Externally visible symbols (used by link-vmlinux.sh)
857 export KBUILD_VMLINUX_INIT := $(head-y) $(init-y) 860 export KBUILD_VMLINUX_INIT := $(head-y) $(init-y)
858 export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) 861 export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y)
859 export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds 862 export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds
860 export LDFLAGS_vmlinux 863 export LDFLAGS_vmlinux
861 # used by scripts/pacmage/Makefile 864 # used by scripts/pacmage/Makefile
862 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)
863 866
864 vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) 867 vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN)
865 868
866 # Final link of vmlinux 869 # Final link of vmlinux
867 cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) 870 cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux)
868 quiet_cmd_link-vmlinux = LINK $@ 871 quiet_cmd_link-vmlinux = LINK $@
869 872
870 # Include targets which we want to 873 # Include targets which we want to
871 # execute if the rest of the kernel build went well. 874 # execute if the rest of the kernel build went well.
872 vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE 875 vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE
873 ifdef CONFIG_HEADERS_CHECK 876 ifdef CONFIG_HEADERS_CHECK
874 $(Q)$(MAKE) -f $(srctree)/Makefile headers_check 877 $(Q)$(MAKE) -f $(srctree)/Makefile headers_check
875 endif 878 endif
876 ifdef CONFIG_SAMPLES 879 ifdef CONFIG_SAMPLES
877 $(Q)$(MAKE) $(build)=samples 880 $(Q)$(MAKE) $(build)=samples
878 endif 881 endif
879 ifdef CONFIG_BUILD_DOCSRC 882 ifdef CONFIG_BUILD_DOCSRC
880 $(Q)$(MAKE) $(build)=Documentation 883 $(Q)$(MAKE) $(build)=Documentation
881 endif 884 endif
882 +$(call if_changed,link-vmlinux) 885 +$(call if_changed,link-vmlinux)
883 886
884 # The actual objects are generated when descending, 887 # The actual objects are generated when descending,
885 # make sure no implicit rule kicks in 888 # make sure no implicit rule kicks in
886 $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; 889 $(sort $(vmlinux-deps)): $(vmlinux-dirs) ;
887 890
888 # Handle descending into subdirectories listed in $(vmlinux-dirs) 891 # Handle descending into subdirectories listed in $(vmlinux-dirs)
889 # Preset locale variables to speed up the build process. Limit locale 892 # Preset locale variables to speed up the build process. Limit locale
890 # tweaks to this spot to avoid wrong language settings when running 893 # tweaks to this spot to avoid wrong language settings when running
891 # make menuconfig etc. 894 # make menuconfig etc.
892 # Error messages still appears in the original language 895 # Error messages still appears in the original language
893 896
894 PHONY += $(vmlinux-dirs) 897 PHONY += $(vmlinux-dirs)
895 $(vmlinux-dirs): prepare scripts 898 $(vmlinux-dirs): prepare scripts
896 $(Q)$(MAKE) $(build)=$@ 899 $(Q)$(MAKE) $(build)=$@
897 900
898 define filechk_kernel.release 901 define filechk_kernel.release
899 echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 902 echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
900 endef 903 endef
901 904
902 # Store (new) KERNELRELEASE string in include/config/kernel.release 905 # Store (new) KERNELRELEASE string in include/config/kernel.release
903 include/config/kernel.release: include/config/auto.conf FORCE 906 include/config/kernel.release: include/config/auto.conf FORCE
904 $(call filechk,kernel.release) 907 $(call filechk,kernel.release)
905 908
906 909
907 # 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
908 # or the modules are listed in "prepare". 911 # or the modules are listed in "prepare".
909 # 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.
910 # archprepare is used in arch Makefiles and when processed asm symlink, 913 # archprepare is used in arch Makefiles and when processed asm symlink,
911 # version.h and scripts_basic is processed / created. 914 # version.h and scripts_basic is processed / created.
912 915
913 # Listed in dependency order 916 # Listed in dependency order
914 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 917 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
915 918
916 # 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,
917 # and if so do: 920 # and if so do:
918 # 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 $(srctree)
919 prepare3: include/config/kernel.release 922 prepare3: include/config/kernel.release
920 ifneq ($(KBUILD_SRC),) 923 ifneq ($(KBUILD_SRC),)
921 @$(kecho) ' Using $(srctree) as source for kernel' 924 @$(kecho) ' Using $(srctree) as source for kernel'
922 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 925 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
923 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ 926 echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \
924 echo >&2 " in the '$(srctree)' directory.";\ 927 echo >&2 " in the '$(srctree)' directory.";\
925 /bin/false; \ 928 /bin/false; \
926 fi; 929 fi;
927 endif 930 endif
928 931
929 # prepare2 creates a makefile if using a separate output directory 932 # prepare2 creates a makefile if using a separate output directory
930 prepare2: prepare3 outputmakefile asm-generic 933 prepare2: prepare3 outputmakefile asm-generic
931 934
932 prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ 935 prepare1: prepare2 $(version_h) include/generated/utsrelease.h \
933 include/config/auto.conf 936 include/config/auto.conf
934 $(cmd_crmodverdir) 937 $(cmd_crmodverdir)
935 938
936 archprepare: archheaders archscripts prepare1 scripts_basic 939 archprepare: archheaders archscripts prepare1 scripts_basic
937 940
938 prepare0: archprepare FORCE 941 prepare0: archprepare FORCE
939 $(Q)$(MAKE) $(build)=. 942 $(Q)$(MAKE) $(build)=.
940 943
941 # All the preparing.. 944 # All the preparing..
942 prepare: prepare0 945 prepare: prepare0
943 946
944 # Generate some files 947 # Generate some files
945 # --------------------------------------------------------------------------- 948 # ---------------------------------------------------------------------------
946 949
947 # KERNELRELEASE can change from a few different places, meaning version.h 950 # KERNELRELEASE can change from a few different places, meaning version.h
948 # needs to be updated, so this check is forced on all builds 951 # needs to be updated, so this check is forced on all builds
949 952
950 uts_len := 64 953 uts_len := 64
951 define filechk_utsrelease.h 954 define filechk_utsrelease.h
952 if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ 955 if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
953 echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ 956 echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
954 exit 1; \ 957 exit 1; \
955 fi; \ 958 fi; \
956 (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) 959 (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)
957 endef 960 endef
958 961
959 define filechk_version.h 962 define filechk_version.h
960 (echo \#define LINUX_VERSION_CODE $(shell \ 963 (echo \#define LINUX_VERSION_CODE $(shell \
961 expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ 964 expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \
962 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))';)
963 endef 966 endef
964 967
965 $(version_h): $(srctree)/Makefile FORCE 968 $(version_h): $(srctree)/Makefile FORCE
966 $(call filechk,version.h) 969 $(call filechk,version.h)
967 970
968 include/generated/utsrelease.h: include/config/kernel.release FORCE 971 include/generated/utsrelease.h: include/config/kernel.release FORCE
969 $(call filechk,utsrelease.h) 972 $(call filechk,utsrelease.h)
970 973
971 PHONY += headerdep 974 PHONY += headerdep
972 headerdep: 975 headerdep:
973 $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ 976 $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \
974 $(srctree)/scripts/headerdep.pl -I$(srctree)/include 977 $(srctree)/scripts/headerdep.pl -I$(srctree)/include
975 978
976 # --------------------------------------------------------------------------- 979 # ---------------------------------------------------------------------------
977 980
978 PHONY += depend dep 981 PHONY += depend dep
979 depend dep: 982 depend dep:
980 @echo '*** Warning: make $@ is unnecessary now.' 983 @echo '*** Warning: make $@ is unnecessary now.'
981 984
982 # --------------------------------------------------------------------------- 985 # ---------------------------------------------------------------------------
983 # Firmware install 986 # Firmware install
984 INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware 987 INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware
985 export INSTALL_FW_PATH 988 export INSTALL_FW_PATH
986 989
987 PHONY += firmware_install 990 PHONY += firmware_install
988 firmware_install: FORCE 991 firmware_install: FORCE
989 @mkdir -p $(objtree)/firmware 992 @mkdir -p $(objtree)/firmware
990 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install 993 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install
991 994
992 # --------------------------------------------------------------------------- 995 # ---------------------------------------------------------------------------
993 # Kernel headers 996 # Kernel headers
994 997
995 #Default location for installed headers 998 #Default location for installed headers
996 export INSTALL_HDR_PATH = $(objtree)/usr 999 export INSTALL_HDR_PATH = $(objtree)/usr
997 1000
998 hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj 1001 hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
999 1002
1000 # If we do an all arch process set dst to asm-$(hdr-arch) 1003 # If we do an all arch process set dst to asm-$(hdr-arch)
1001 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)
1002 1005
1003 PHONY += archheaders 1006 PHONY += archheaders
1004 archheaders: 1007 archheaders:
1005 1008
1006 PHONY += archscripts 1009 PHONY += archscripts
1007 archscripts: 1010 archscripts:
1008 1011
1009 PHONY += __headers 1012 PHONY += __headers
1010 __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE 1013 __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE
1011 $(Q)$(MAKE) $(build)=scripts build_unifdef 1014 $(Q)$(MAKE) $(build)=scripts build_unifdef
1012 1015
1013 PHONY += headers_install_all 1016 PHONY += headers_install_all
1014 headers_install_all: 1017 headers_install_all:
1015 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install 1018 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install
1016 1019
1017 PHONY += headers_install 1020 PHONY += headers_install
1018 headers_install: __headers 1021 headers_install: __headers
1019 $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ 1022 $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \
1020 $(error Headers not exportable for the $(SRCARCH) architecture)) 1023 $(error Headers not exportable for the $(SRCARCH) architecture))
1021 $(Q)$(MAKE) $(hdr-inst)=include/uapi 1024 $(Q)$(MAKE) $(hdr-inst)=include/uapi
1022 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) 1025 $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst)
1023 1026
1024 PHONY += headers_check_all 1027 PHONY += headers_check_all
1025 headers_check_all: headers_install_all 1028 headers_check_all: headers_install_all
1026 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check 1029 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check
1027 1030
1028 PHONY += headers_check 1031 PHONY += headers_check
1029 headers_check: headers_install 1032 headers_check: headers_install
1030 $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1 1033 $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1
1031 $(Q)$(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
1032 1035
1033 # --------------------------------------------------------------------------- 1036 # ---------------------------------------------------------------------------
1034 # Modules 1037 # Modules
1035 1038
1036 ifdef CONFIG_MODULES 1039 ifdef CONFIG_MODULES
1037 1040
1038 # By default, build modules as well 1041 # By default, build modules as well
1039 1042
1040 all: modules 1043 all: modules
1041 1044
1042 # Build modules 1045 # Build modules
1043 # 1046 #
1044 # 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
1045 # duplicate lines in modules.order files. Those are removed 1048 # duplicate lines in modules.order files. Those are removed
1046 # using awk while concatenating to the final file. 1049 # using awk while concatenating to the final file.
1047 1050
1048 PHONY += modules 1051 PHONY += modules
1049 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin 1052 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin
1050 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order 1053 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
1051 @$(kecho) ' Building modules, stage 2.'; 1054 @$(kecho) ' Building modules, stage 2.';
1052 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1055 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1053 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild 1056 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
1054 1057
1055 modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) 1058 modules.builtin: $(vmlinux-dirs:%=%/modules.builtin)
1056 $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin 1059 $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin
1057 1060
1058 %/modules.builtin: include/config/auto.conf 1061 %/modules.builtin: include/config/auto.conf
1059 $(Q)$(MAKE) $(modbuiltin)=$* 1062 $(Q)$(MAKE) $(modbuiltin)=$*
1060 1063
1061 1064
1062 # Target to prepare building external modules 1065 # Target to prepare building external modules
1063 PHONY += modules_prepare 1066 PHONY += modules_prepare
1064 modules_prepare: prepare scripts 1067 modules_prepare: prepare scripts
1065 1068
1066 # Target to install modules 1069 # Target to install modules
1067 PHONY += modules_install 1070 PHONY += modules_install
1068 modules_install: _modinst_ _modinst_post 1071 modules_install: _modinst_ _modinst_post
1069 1072
1070 PHONY += _modinst_ 1073 PHONY += _modinst_
1071 _modinst_: 1074 _modinst_:
1072 @rm -rf $(MODLIB)/kernel 1075 @rm -rf $(MODLIB)/kernel
1073 @rm -f $(MODLIB)/source 1076 @rm -f $(MODLIB)/source
1074 @mkdir -p $(MODLIB)/kernel 1077 @mkdir -p $(MODLIB)/kernel
1075 @ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source 1078 @ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source
1076 @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ 1079 @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \
1077 rm -f $(MODLIB)/build ; \ 1080 rm -f $(MODLIB)/build ; \
1078 ln -s $(CURDIR) $(MODLIB)/build ; \ 1081 ln -s $(CURDIR) $(MODLIB)/build ; \
1079 fi 1082 fi
1080 @cp -f $(objtree)/modules.order $(MODLIB)/ 1083 @cp -f $(objtree)/modules.order $(MODLIB)/
1081 @cp -f $(objtree)/modules.builtin $(MODLIB)/ 1084 @cp -f $(objtree)/modules.builtin $(MODLIB)/
1082 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst 1085 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1083 1086
1084 # This depmod is only for convenience to give the initial 1087 # This depmod is only for convenience to give the initial
1085 # 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
1086 # boot script depmod is the master version. 1089 # boot script depmod is the master version.
1087 PHONY += _modinst_post 1090 PHONY += _modinst_post
1088 _modinst_post: _modinst_ 1091 _modinst_post: _modinst_
1089 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst 1092 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst
1090 $(call cmd,depmod) 1093 $(call cmd,depmod)
1091 1094
1092 ifeq ($(CONFIG_MODULE_SIG), y) 1095 ifeq ($(CONFIG_MODULE_SIG), y)
1093 PHONY += modules_sign 1096 PHONY += modules_sign
1094 modules_sign: 1097 modules_sign:
1095 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign 1098 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign
1096 endif 1099 endif
1097 1100
1098 else # CONFIG_MODULES 1101 else # CONFIG_MODULES
1099 1102
1100 # Modules not configured 1103 # Modules not configured
1101 # --------------------------------------------------------------------------- 1104 # ---------------------------------------------------------------------------
1102 1105
1103 modules modules_install: FORCE 1106 modules modules_install: FORCE
1104 @echo >&2 1107 @echo >&2
1105 @echo >&2 "The present kernel configuration has modules disabled." 1108 @echo >&2 "The present kernel configuration has modules disabled."
1106 @echo >&2 "Type 'make config' and enable loadable module support." 1109 @echo >&2 "Type 'make config' and enable loadable module support."
1107 @echo >&2 "Then build a kernel with module support enabled." 1110 @echo >&2 "Then build a kernel with module support enabled."
1108 @echo >&2 1111 @echo >&2
1109 @exit 1 1112 @exit 1
1110 1113
1111 endif # CONFIG_MODULES 1114 endif # CONFIG_MODULES
1112 1115
1113 ### 1116 ###
1114 # Cleaning is done on three levels. 1117 # Cleaning is done on three levels.
1115 # make clean Delete most generated files 1118 # make clean Delete most generated files
1116 # Leave enough to build external modules 1119 # Leave enough to build external modules
1117 # make mrproper Delete the current configuration, and all generated files 1120 # make mrproper Delete the current configuration, and all generated files
1118 # 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
1119 1122
1120 # Directories & files removed with 'make clean' 1123 # Directories & files removed with 'make clean'
1121 CLEAN_DIRS += $(MODVERDIR) 1124 CLEAN_DIRS += $(MODVERDIR)
1122 1125
1123 # Directories & files removed with 'make mrproper' 1126 # Directories & files removed with 'make mrproper'
1124 MRPROPER_DIRS += include/config usr/include include/generated \ 1127 MRPROPER_DIRS += include/config usr/include include/generated \
1125 arch/*/include/generated .tmp_objdiff 1128 arch/*/include/generated .tmp_objdiff
1126 MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \ 1129 MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \
1127 Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ 1130 Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \
1128 signing_key.priv signing_key.x509 x509.genkey \ 1131 signing_key.priv signing_key.x509 x509.genkey \
1129 extra_certificates signing_key.x509.keyid \ 1132 extra_certificates signing_key.x509.keyid \
1130 signing_key.x509.signer include/linux/version.h 1133 signing_key.x509.signer include/linux/version.h
1131 1134
1132 # clean - Delete most, but leave enough to build external modules 1135 # clean - Delete most, but leave enough to build external modules
1133 # 1136 #
1134 clean: rm-dirs := $(CLEAN_DIRS) 1137 clean: rm-dirs := $(CLEAN_DIRS)
1135 clean: rm-files := $(CLEAN_FILES) 1138 clean: rm-files := $(CLEAN_FILES)
1136 clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples) 1139 clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples)
1137 1140
1138 PHONY += $(clean-dirs) clean archclean vmlinuxclean 1141 PHONY += $(clean-dirs) clean archclean vmlinuxclean
1139 $(clean-dirs): 1142 $(clean-dirs):
1140 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1143 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1141 1144
1142 vmlinuxclean: 1145 vmlinuxclean:
1143 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean 1146 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean
1144 1147
1145 clean: archclean vmlinuxclean 1148 clean: archclean vmlinuxclean
1146 1149
1147 # mrproper - Delete all generated files, including .config 1150 # mrproper - Delete all generated files, including .config
1148 # 1151 #
1149 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1152 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1150 mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1153 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1151 mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) 1154 mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)
1152 1155
1153 PHONY += $(mrproper-dirs) mrproper archmrproper 1156 PHONY += $(mrproper-dirs) mrproper archmrproper
1154 $(mrproper-dirs): 1157 $(mrproper-dirs):
1155 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1158 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1156 1159
1157 mrproper: clean archmrproper $(mrproper-dirs) 1160 mrproper: clean archmrproper $(mrproper-dirs)
1158 $(call cmd,rmdirs) 1161 $(call cmd,rmdirs)
1159 $(call cmd,rmfiles) 1162 $(call cmd,rmfiles)
1160 1163
1161 # distclean 1164 # distclean
1162 # 1165 #
1163 PHONY += distclean 1166 PHONY += distclean
1164 1167
1165 distclean: mrproper 1168 distclean: mrproper
1166 @find $(srctree) $(RCS_FIND_IGNORE) \ 1169 @find $(srctree) $(RCS_FIND_IGNORE) \
1167 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1170 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1168 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1171 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1169 -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \ 1172 -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \
1170 -type f -print | xargs rm -f 1173 -type f -print | xargs rm -f
1171 1174
1172 1175
1173 # Packaging of the kernel to various formats 1176 # Packaging of the kernel to various formats
1174 # --------------------------------------------------------------------------- 1177 # ---------------------------------------------------------------------------
1175 # rpm target kept for backward compatibility 1178 # rpm target kept for backward compatibility
1176 package-dir := $(srctree)/scripts/package 1179 package-dir := $(srctree)/scripts/package
1177 1180
1178 %src-pkg: FORCE 1181 %src-pkg: FORCE
1179 $(Q)$(MAKE) $(build)=$(package-dir) $@ 1182 $(Q)$(MAKE) $(build)=$(package-dir) $@
1180 %pkg: include/config/kernel.release FORCE 1183 %pkg: include/config/kernel.release FORCE
1181 $(Q)$(MAKE) $(build)=$(package-dir) $@ 1184 $(Q)$(MAKE) $(build)=$(package-dir) $@
1182 rpm: include/config/kernel.release FORCE 1185 rpm: include/config/kernel.release FORCE
1183 $(Q)$(MAKE) $(build)=$(package-dir) $@ 1186 $(Q)$(MAKE) $(build)=$(package-dir) $@
1184 1187
1185 1188
1186 # Brief documentation of the typical targets used 1189 # Brief documentation of the typical targets used
1187 # --------------------------------------------------------------------------- 1190 # ---------------------------------------------------------------------------
1188 1191
1189 boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) 1192 boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)
1190 boards := $(notdir $(boards)) 1193 boards := $(notdir $(boards))
1191 board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) 1194 board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))
1192 board-dirs := $(sort $(notdir $(board-dirs:/=))) 1195 board-dirs := $(sort $(notdir $(board-dirs:/=)))
1193 1196
1194 help: 1197 help:
1195 @echo 'Cleaning targets:' 1198 @echo 'Cleaning targets:'
1196 @echo ' clean - Remove most generated files but keep the config and' 1199 @echo ' clean - Remove most generated files but keep the config and'
1197 @echo ' enough build support to build external modules' 1200 @echo ' enough build support to build external modules'
1198 @echo ' mrproper - Remove all generated files + config + various backup files' 1201 @echo ' mrproper - Remove all generated files + config + various backup files'
1199 @echo ' distclean - mrproper + remove editor backup and patch files' 1202 @echo ' distclean - mrproper + remove editor backup and patch files'
1200 @echo '' 1203 @echo ''
1201 @echo 'Configuration targets:' 1204 @echo 'Configuration targets:'
1202 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1205 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1203 @echo '' 1206 @echo ''
1204 @echo 'Other generic targets:' 1207 @echo 'Other generic targets:'
1205 @echo ' all - Build all targets marked with [*]' 1208 @echo ' all - Build all targets marked with [*]'
1206 @echo '* vmlinux - Build the bare kernel' 1209 @echo '* vmlinux - Build the bare kernel'
1207 @echo '* modules - Build all modules' 1210 @echo '* modules - Build all modules'
1208 @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' 1211 @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
1209 @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' 1212 @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'
1210 @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' 1213 @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
1211 @echo ' dir/ - Build all files in dir and below' 1214 @echo ' dir/ - Build all files in dir and below'
1212 @echo ' dir/file.[oisS] - Build specified target only' 1215 @echo ' dir/file.[oisS] - Build specified target only'
1213 @echo ' dir/file.lst - Build specified mixed source/assembly target only' 1216 @echo ' dir/file.lst - Build specified mixed source/assembly target only'
1214 @echo ' (requires a recent binutils and recent build (System.map))' 1217 @echo ' (requires a recent binutils and recent build (System.map))'
1215 @echo ' dir/file.ko - Build module including final link' 1218 @echo ' dir/file.ko - Build module including final link'
1216 @echo ' modules_prepare - Set up for building external modules' 1219 @echo ' modules_prepare - Set up for building external modules'
1217 @echo ' tags/TAGS - Generate tags file for editors' 1220 @echo ' tags/TAGS - Generate tags file for editors'
1218 @echo ' cscope - Generate cscope index' 1221 @echo ' cscope - Generate cscope index'
1219 @echo ' gtags - Generate GNU GLOBAL index' 1222 @echo ' gtags - Generate GNU GLOBAL index'
1220 @echo ' kernelrelease - Output the release version string' 1223 @echo ' kernelrelease - Output the release version string'
1221 @echo ' kernelversion - Output the version stored in Makefile' 1224 @echo ' kernelversion - Output the version stored in Makefile'
1222 @echo ' image_name - Output the image name' 1225 @echo ' image_name - Output the image name'
1223 @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ 1226 @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
1224 echo ' (default: $(INSTALL_HDR_PATH))'; \ 1227 echo ' (default: $(INSTALL_HDR_PATH))'; \
1225 echo '' 1228 echo ''
1226 @echo 'Static analysers' 1229 @echo 'Static analysers'
1227 @echo ' checkstack - Generate a list of stack hogs' 1230 @echo ' checkstack - Generate a list of stack hogs'
1228 @echo ' namespacecheck - Name space analysis on compiled kernel' 1231 @echo ' namespacecheck - Name space analysis on compiled kernel'
1229 @echo ' versioncheck - Sanity check on version.h usage' 1232 @echo ' versioncheck - Sanity check on version.h usage'
1230 @echo ' includecheck - Check for duplicate included header files' 1233 @echo ' includecheck - Check for duplicate included header files'
1231 @echo ' export_report - List the usages of all exported symbols' 1234 @echo ' export_report - List the usages of all exported symbols'
1232 @echo ' headers_check - Sanity check on exported headers' 1235 @echo ' headers_check - Sanity check on exported headers'
1233 @echo ' headerdep - Detect inclusion cycles in headers' 1236 @echo ' headerdep - Detect inclusion cycles in headers'
1234 @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help 1237 @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help
1235 @echo '' 1238 @echo ''
1236 @echo 'Kernel packaging:' 1239 @echo 'Kernel packaging:'
1237 @$(MAKE) $(build)=$(package-dir) help 1240 @$(MAKE) $(build)=$(package-dir) help
1238 @echo '' 1241 @echo ''
1239 @echo 'Documentation targets:' 1242 @echo 'Documentation targets:'
1240 @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp 1243 @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
1241 @echo '' 1244 @echo ''
1242 @echo 'Architecture specific targets ($(SRCARCH)):' 1245 @echo 'Architecture specific targets ($(SRCARCH)):'
1243 @$(if $(archhelp),$(archhelp),\ 1246 @$(if $(archhelp),$(archhelp),\
1244 echo ' No architecture specific help defined for $(SRCARCH)') 1247 echo ' No architecture specific help defined for $(SRCARCH)')
1245 @echo '' 1248 @echo ''
1246 @$(if $(boards), \ 1249 @$(if $(boards), \
1247 $(foreach b, $(boards), \ 1250 $(foreach b, $(boards), \
1248 printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ 1251 printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \
1249 echo '') 1252 echo '')
1250 @$(if $(board-dirs), \ 1253 @$(if $(board-dirs), \
1251 $(foreach b, $(board-dirs), \ 1254 $(foreach b, $(board-dirs), \
1252 printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ 1255 printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \
1253 printf " %-16s - Show all of the above\\n" help-boards; \ 1256 printf " %-16s - Show all of the above\\n" help-boards; \
1254 echo '') 1257 echo '')
1255 1258
1256 @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'
1257 @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'
1258 @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'
1259 @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)'
1260 @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'
1261 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' 1264 @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections'
1262 @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'
1263 @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'
1264 @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'
1265 @echo ' 3: more obscure warnings, can most likely be ignored' 1268 @echo ' 3: more obscure warnings, can most likely be ignored'
1266 @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'
1267 @echo '' 1270 @echo ''
1268 @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 [*] '
1269 @echo 'For further info see the ./README file' 1272 @echo 'For further info see the ./README file'
1270 1273
1271 1274
1272 help-board-dirs := $(addprefix help-,$(board-dirs)) 1275 help-board-dirs := $(addprefix help-,$(board-dirs))
1273 1276
1274 help-boards: $(help-board-dirs) 1277 help-boards: $(help-board-dirs)
1275 1278
1276 boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) 1279 boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))
1277 1280
1278 $(help-board-dirs): help-%: 1281 $(help-board-dirs): help-%:
1279 @echo 'Architecture specific targets ($(SRCARCH) $*):' 1282 @echo 'Architecture specific targets ($(SRCARCH) $*):'
1280 @$(if $(boards-per-dir), \ 1283 @$(if $(boards-per-dir), \
1281 $(foreach b, $(boards-per-dir), \ 1284 $(foreach b, $(boards-per-dir), \
1282 printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ 1285 printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \
1283 echo '') 1286 echo '')
1284 1287
1285 1288
1286 # Documentation targets 1289 # Documentation targets
1287 # --------------------------------------------------------------------------- 1290 # ---------------------------------------------------------------------------
1288 %docs: scripts_basic FORCE 1291 %docs: scripts_basic FORCE
1289 $(Q)$(MAKE) $(build)=scripts build_docproc 1292 $(Q)$(MAKE) $(build)=scripts build_docproc
1290 $(Q)$(MAKE) $(build)=Documentation/DocBook $@ 1293 $(Q)$(MAKE) $(build)=Documentation/DocBook $@
1291 1294
1292 else # KBUILD_EXTMOD 1295 else # KBUILD_EXTMOD
1293 1296
1294 ### 1297 ###
1295 # External module support. 1298 # External module support.
1296 # When building external modules the kernel used as basis is considered 1299 # When building external modules the kernel used as basis is considered
1297 # read-only, and no consistency checks are made and the make 1300 # read-only, and no consistency checks are made and the make
1298 # 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
1299 # in the basis kernel ordinary make commands (without M=...) must 1302 # in the basis kernel ordinary make commands (without M=...) must
1300 # be used. 1303 # be used.
1301 # 1304 #
1302 # The following are the only valid targets when building external 1305 # The following are the only valid targets when building external
1303 # modules. 1306 # modules.
1304 # make M=dir clean Delete all automatically generated files 1307 # make M=dir clean Delete all automatically generated files
1305 # make M=dir modules Make all modules in specified dir 1308 # make M=dir modules Make all modules in specified dir
1306 # make M=dir Same as 'make M=dir modules' 1309 # make M=dir Same as 'make M=dir modules'
1307 # make M=dir modules_install 1310 # make M=dir modules_install
1308 # Install the modules built in the module directory 1311 # Install the modules built in the module directory
1309 # Assumes install directory is already created 1312 # Assumes install directory is already created
1310 1313
1311 # We are always building modules 1314 # We are always building modules
1312 KBUILD_MODULES := 1 1315 KBUILD_MODULES := 1
1313 PHONY += crmodverdir 1316 PHONY += crmodverdir
1314 crmodverdir: 1317 crmodverdir:
1315 $(cmd_crmodverdir) 1318 $(cmd_crmodverdir)
1316 1319
1317 PHONY += $(objtree)/Module.symvers 1320 PHONY += $(objtree)/Module.symvers
1318 $(objtree)/Module.symvers: 1321 $(objtree)/Module.symvers:
1319 @test -e $(objtree)/Module.symvers || ( \ 1322 @test -e $(objtree)/Module.symvers || ( \
1320 echo; \ 1323 echo; \
1321 echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ 1324 echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \
1322 echo " is missing; modules will have no dependencies and modversions."; \ 1325 echo " is missing; modules will have no dependencies and modversions."; \
1323 echo ) 1326 echo )
1324 1327
1325 module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) 1328 module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
1326 PHONY += $(module-dirs) modules 1329 PHONY += $(module-dirs) modules
1327 $(module-dirs): crmodverdir $(objtree)/Module.symvers 1330 $(module-dirs): crmodverdir $(objtree)/Module.symvers
1328 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) 1331 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
1329 1332
1330 modules: $(module-dirs) 1333 modules: $(module-dirs)
1331 @$(kecho) ' Building modules, stage 2.'; 1334 @$(kecho) ' Building modules, stage 2.';
1332 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1335 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1333 1336
1334 PHONY += modules_install 1337 PHONY += modules_install
1335 modules_install: _emodinst_ _emodinst_post 1338 modules_install: _emodinst_ _emodinst_post
1336 1339
1337 install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) 1340 install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
1338 PHONY += _emodinst_ 1341 PHONY += _emodinst_
1339 _emodinst_: 1342 _emodinst_:
1340 $(Q)mkdir -p $(MODLIB)/$(install-dir) 1343 $(Q)mkdir -p $(MODLIB)/$(install-dir)
1341 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst 1344 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1342 1345
1343 PHONY += _emodinst_post 1346 PHONY += _emodinst_post
1344 _emodinst_post: _emodinst_ 1347 _emodinst_post: _emodinst_
1345 $(call cmd,depmod) 1348 $(call cmd,depmod)
1346 1349
1347 clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) 1350 clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
1348 1351
1349 PHONY += $(clean-dirs) clean 1352 PHONY += $(clean-dirs) clean
1350 $(clean-dirs): 1353 $(clean-dirs):
1351 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1354 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1352 1355
1353 clean: rm-dirs := $(MODVERDIR) 1356 clean: rm-dirs := $(MODVERDIR)
1354 clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers 1357 clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers
1355 1358
1356 help: 1359 help:
1357 @echo ' Building external modules.' 1360 @echo ' Building external modules.'
1358 @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' 1361 @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'
1359 @echo '' 1362 @echo ''
1360 @echo ' modules - default target, build the module(s)' 1363 @echo ' modules - default target, build the module(s)'
1361 @echo ' modules_install - install the module' 1364 @echo ' modules_install - install the module'
1362 @echo ' clean - remove generated files in module directory only' 1365 @echo ' clean - remove generated files in module directory only'
1363 @echo '' 1366 @echo ''
1364 1367
1365 # Dummies... 1368 # Dummies...
1366 PHONY += prepare scripts 1369 PHONY += prepare scripts
1367 prepare: ; 1370 prepare: ;
1368 scripts: ; 1371 scripts: ;
1369 endif # KBUILD_EXTMOD 1372 endif # KBUILD_EXTMOD
1370 1373
1371 clean: $(clean-dirs) 1374 clean: $(clean-dirs)
1372 $(call cmd,rmdirs) 1375 $(call cmd,rmdirs)
1373 $(call cmd,rmfiles) 1376 $(call cmd,rmfiles)
1374 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ 1377 @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \
1375 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1378 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1376 -o -name '*.ko.*' \ 1379 -o -name '*.ko.*' \
1377 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1380 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1378 -o -name '*.symtypes' -o -name 'modules.order' \ 1381 -o -name '*.symtypes' -o -name 'modules.order' \
1379 -o -name modules.builtin -o -name '.tmp_*.o.*' \ 1382 -o -name modules.builtin -o -name '.tmp_*.o.*' \
1380 -o -name '*.gcno' \) -type f -print | xargs rm -f 1383 -o -name '*.gcno' \) -type f -print | xargs rm -f
1381 1384
1382 # Generate tags for editors 1385 # Generate tags for editors
1383 # --------------------------------------------------------------------------- 1386 # ---------------------------------------------------------------------------
1384 quiet_cmd_tags = GEN $@ 1387 quiet_cmd_tags = GEN $@
1385 cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ 1388 cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@
1386 1389
1387 tags TAGS cscope gtags: FORCE 1390 tags TAGS cscope gtags: FORCE
1388 $(call cmd,tags) 1391 $(call cmd,tags)
1389 1392
1390 # Scripts to check various things for consistency 1393 # Scripts to check various things for consistency
1391 # --------------------------------------------------------------------------- 1394 # ---------------------------------------------------------------------------
1392 1395
1393 PHONY += includecheck versioncheck coccicheck namespacecheck export_report 1396 PHONY += includecheck versioncheck coccicheck namespacecheck export_report
1394 1397
1395 includecheck: 1398 includecheck:
1396 find $(srctree)/* $(RCS_FIND_IGNORE) \ 1399 find $(srctree)/* $(RCS_FIND_IGNORE) \
1397 -name '*.[hcS]' -type f -print | sort \ 1400 -name '*.[hcS]' -type f -print | sort \
1398 | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl 1401 | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
1399 1402
1400 versioncheck: 1403 versioncheck:
1401 find $(srctree)/* $(RCS_FIND_IGNORE) \ 1404 find $(srctree)/* $(RCS_FIND_IGNORE) \
1402 -name '*.[hcS]' -type f -print | sort \ 1405 -name '*.[hcS]' -type f -print | sort \
1403 | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl 1406 | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
1404 1407
1405 coccicheck: 1408 coccicheck:
1406 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ 1409 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@
1407 1410
1408 namespacecheck: 1411 namespacecheck:
1409 $(PERL) $(srctree)/scripts/namespace.pl 1412 $(PERL) $(srctree)/scripts/namespace.pl
1410 1413
1411 export_report: 1414 export_report:
1412 $(PERL) $(srctree)/scripts/export_report.pl 1415 $(PERL) $(srctree)/scripts/export_report.pl
1413 1416
1414 endif #ifeq ($(config-targets),1) 1417 endif #ifeq ($(config-targets),1)
1415 endif #ifeq ($(mixed-targets),1) 1418 endif #ifeq ($(mixed-targets),1)
1416 1419
1417 PHONY += checkstack kernelrelease kernelversion image_name 1420 PHONY += checkstack kernelrelease kernelversion image_name
1418 1421
1419 # 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
1420 # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone 1423 # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone
1421 # else wants $(ARCH), including people doing cross-builds, which means 1424 # else wants $(ARCH), including people doing cross-builds, which means
1422 # that $(SUBARCH) doesn't work here. 1425 # that $(SUBARCH) doesn't work here.
1423 ifeq ($(ARCH), um) 1426 ifeq ($(ARCH), um)
1424 CHECKSTACK_ARCH := $(SUBARCH) 1427 CHECKSTACK_ARCH := $(SUBARCH)
1425 else 1428 else
1426 CHECKSTACK_ARCH := $(ARCH) 1429 CHECKSTACK_ARCH := $(ARCH)
1427 endif 1430 endif
1428 checkstack: 1431 checkstack:
1429 $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ 1432 $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
1430 $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) 1433 $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
1431 1434
1432 kernelrelease: 1435 kernelrelease:
1433 @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" 1436 @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))"
1434 1437
1435 kernelversion: 1438 kernelversion:
1436 @echo $(KERNELVERSION) 1439 @echo $(KERNELVERSION)
1437 1440
1438 image_name: 1441 image_name:
1439 @echo $(KBUILD_IMAGE) 1442 @echo $(KBUILD_IMAGE)
1440 1443
1441 # Clear a bunch of variables before executing the submake 1444 # Clear a bunch of variables before executing the submake
1442 tools/: FORCE 1445 tools/: FORCE
1443 $(Q)mkdir -p $(objtree)/tools 1446 $(Q)mkdir -p $(objtree)/tools
1444 $(Q)$(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/
1445 1448
1446 tools/%: FORCE 1449 tools/%: FORCE
1447 $(Q)mkdir -p $(objtree)/tools 1450 $(Q)mkdir -p $(objtree)/tools
1448 $(Q)$(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/ $*
1449 1452
1450 # Single targets 1453 # Single targets
1451 # --------------------------------------------------------------------------- 1454 # ---------------------------------------------------------------------------
1452 # Single targets are compatible with: 1455 # Single targets are compatible with:
1453 # - build with mixed source and output 1456 # - build with mixed source and output
1454 # - build with separate output dir 'make O=...' 1457 # - build with separate output dir 'make O=...'
1455 # - external modules 1458 # - external modules
1456 # 1459 #
1457 # target-dir => where to store outputfile 1460 # target-dir => where to store outputfile
1458 # build-dir => directory in kernel source tree to use 1461 # build-dir => directory in kernel source tree to use
1459 1462
1460 ifeq ($(KBUILD_EXTMOD),) 1463 ifeq ($(KBUILD_EXTMOD),)
1461 build-dir = $(patsubst %/,%,$(dir $@)) 1464 build-dir = $(patsubst %/,%,$(dir $@))
1462 target-dir = $(dir $@) 1465 target-dir = $(dir $@)
1463 else 1466 else
1464 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1467 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1465 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1468 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1466 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1469 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1467 endif 1470 endif
1468 1471
1469 %.s: %.c prepare scripts FORCE 1472 %.s: %.c prepare scripts FORCE
1470 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1473 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1471 %.i: %.c prepare scripts FORCE 1474 %.i: %.c prepare scripts FORCE
1472 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1475 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1473 %.o: %.c prepare scripts FORCE 1476 %.o: %.c prepare scripts FORCE
1474 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1477 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1475 %.lst: %.c prepare scripts FORCE 1478 %.lst: %.c prepare scripts FORCE
1476 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1479 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1477 %.s: %.S prepare scripts FORCE 1480 %.s: %.S prepare scripts FORCE
1478 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1481 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1479 %.o: %.S prepare scripts FORCE 1482 %.o: %.S prepare scripts FORCE
1480 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1483 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1481 %.symtypes: %.c prepare scripts FORCE 1484 %.symtypes: %.c prepare scripts FORCE
1482 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1485 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1483 1486
1484 # Modules 1487 # Modules
1485 /: prepare scripts FORCE 1488 /: prepare scripts FORCE
1486 $(cmd_crmodverdir) 1489 $(cmd_crmodverdir)
1487 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1490 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1488 $(build)=$(build-dir) 1491 $(build)=$(build-dir)
1489 %/: prepare scripts FORCE 1492 %/: prepare scripts FORCE
1490 $(cmd_crmodverdir) 1493 $(cmd_crmodverdir)
1491 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1494 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1492 $(build)=$(build-dir) 1495 $(build)=$(build-dir)
1493 %.ko: prepare scripts FORCE 1496 %.ko: prepare scripts FORCE
1494 $(cmd_crmodverdir) 1497 $(cmd_crmodverdir)
1495 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1498 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \