Doug / smarc-fsl-linux-kernel

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Commit 5dd34572ad9a3be430632dd42e4af2ea370b397b

Authored by Linus Torvalds
1 parent cbfa66b88d
Exists in master and in 7 other branches imx_3.0.35_4.1.0, imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga, smarc-l5.0.0_1.0.0-ga

Linux 2.6.26-rc6 

.. and a new name, courtesy of Alan.

Showing 1 changed file with 2 additions and 2 deletions Inline Diff

1 VERSION = 2 1 VERSION = 2
2 PATCHLEVEL = 6 2 PATCHLEVEL = 6
3 SUBLEVEL = 26 3 SUBLEVEL = 26
4 EXTRAVERSION = -rc5 4 EXTRAVERSION = -rc6
5 NAME = Funky Weasel is Jiggy wit it 5 NAME = Rotary Wombat
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 # We are using a recursive build, so we need to do a little thinking 19 # We are using a recursive build, so we need to do a little thinking
20 # to get the ordering right. 20 # to get the ordering right.
21 # 21 #
22 # Most importantly: sub-Makefiles should only ever modify files in 22 # Most importantly: sub-Makefiles should only ever modify files in
23 # their own directory. If in some directory we have a dependency on 23 # their own directory. If in some directory we have a dependency on
24 # a file in another dir (which doesn't happen often, but it's often 24 # a file in another dir (which doesn't happen often, but it's often
25 # unavoidable when linking the built-in.o targets which finally 25 # unavoidable when linking the built-in.o targets which finally
26 # turn into vmlinux), we will call a sub make in that other dir, and 26 # turn into vmlinux), we will call a sub make in that other dir, and
27 # after that we are sure that everything which is in that other dir 27 # after that we are sure that everything which is in that other dir
28 # is now up to date. 28 # is now up to date.
29 # 29 #
30 # The only cases where we need to modify files which have global 30 # The only cases where we need to modify files which have global
31 # effects are thus separated out and done before the recursive 31 # effects are thus separated out and done before the recursive
32 # descending is started. They are now explicitly listed as the 32 # descending is started. They are now explicitly listed as the
33 # prepare rule. 33 # prepare rule.
34 34
35 # To put more focus on warnings, be less verbose as default 35 # To put more focus on warnings, be less verbose as default
36 # Use 'make V=1' to see the full commands 36 # Use 'make V=1' to see the full commands
37 37
38 ifdef V 38 ifdef V
39 ifeq ("$(origin V)", "command line") 39 ifeq ("$(origin V)", "command line")
40 KBUILD_VERBOSE = $(V) 40 KBUILD_VERBOSE = $(V)
41 endif 41 endif
42 endif 42 endif
43 ifndef KBUILD_VERBOSE 43 ifndef KBUILD_VERBOSE
44 KBUILD_VERBOSE = 0 44 KBUILD_VERBOSE = 0
45 endif 45 endif
46 46
47 # Call a source code checker (by default, "sparse") as part of the 47 # Call a source code checker (by default, "sparse") as part of the
48 # C compilation. 48 # C compilation.
49 # 49 #
50 # Use 'make C=1' to enable checking of only re-compiled files. 50 # Use 'make C=1' to enable checking of only re-compiled files.
51 # Use 'make C=2' to enable checking of *all* source files, regardless 51 # Use 'make C=2' to enable checking of *all* source files, regardless
52 # of whether they are re-compiled or not. 52 # of whether they are re-compiled or not.
53 # 53 #
54 # See the file "Documentation/sparse.txt" for more details, including 54 # See the file "Documentation/sparse.txt" for more details, including
55 # where to get the "sparse" utility. 55 # where to get the "sparse" utility.
56 56
57 ifdef C 57 ifdef C
58 ifeq ("$(origin C)", "command line") 58 ifeq ("$(origin C)", "command line")
59 KBUILD_CHECKSRC = $(C) 59 KBUILD_CHECKSRC = $(C)
60 endif 60 endif
61 endif 61 endif
62 ifndef KBUILD_CHECKSRC 62 ifndef KBUILD_CHECKSRC
63 KBUILD_CHECKSRC = 0 63 KBUILD_CHECKSRC = 0
64 endif 64 endif
65 65
66 # Use make M=dir to specify directory of external module to build 66 # Use make M=dir to specify directory of external module to build
67 # Old syntax make ... SUBDIRS=$PWD is still supported 67 # Old syntax make ... SUBDIRS=$PWD is still supported
68 # Setting the environment variable KBUILD_EXTMOD take precedence 68 # Setting the environment variable KBUILD_EXTMOD take precedence
69 ifdef SUBDIRS 69 ifdef SUBDIRS
70 KBUILD_EXTMOD ?= $(SUBDIRS) 70 KBUILD_EXTMOD ?= $(SUBDIRS)
71 endif 71 endif
72 ifdef M 72 ifdef M
73 ifeq ("$(origin M)", "command line") 73 ifeq ("$(origin M)", "command line")
74 KBUILD_EXTMOD := $(M) 74 KBUILD_EXTMOD := $(M)
75 endif 75 endif
76 endif 76 endif
77 77
78 78
79 # kbuild supports saving output files in a separate directory. 79 # kbuild supports saving output files in a separate directory.
80 # To locate output files in a separate directory two syntaxes are supported. 80 # To locate output files in a separate directory two syntaxes are supported.
81 # In both cases the working directory must be the root of the kernel src. 81 # In both cases the working directory must be the root of the kernel src.
82 # 1) O= 82 # 1) O=
83 # Use "make O=dir/to/store/output/files/" 83 # Use "make O=dir/to/store/output/files/"
84 # 84 #
85 # 2) Set KBUILD_OUTPUT 85 # 2) Set KBUILD_OUTPUT
86 # Set the environment variable KBUILD_OUTPUT to point to the directory 86 # Set the environment variable KBUILD_OUTPUT to point to the directory
87 # where the output files shall be placed. 87 # where the output files shall be placed.
88 # export KBUILD_OUTPUT=dir/to/store/output/files/ 88 # export KBUILD_OUTPUT=dir/to/store/output/files/
89 # make 89 # make
90 # 90 #
91 # The O= assignment takes precedence over the KBUILD_OUTPUT environment 91 # The O= assignment takes precedence over the KBUILD_OUTPUT environment
92 # variable. 92 # variable.
93 93
94 94
95 # KBUILD_SRC is set on invocation of make in OBJ directory 95 # KBUILD_SRC is set on invocation of make in OBJ directory
96 # KBUILD_SRC is not intended to be used by the regular user (for now) 96 # KBUILD_SRC is not intended to be used by the regular user (for now)
97 ifeq ($(KBUILD_SRC),) 97 ifeq ($(KBUILD_SRC),)
98 98
99 # OK, Make called in directory where kernel src resides 99 # OK, Make called in directory where kernel src resides
100 # Do we want to locate output files in a separate directory? 100 # Do we want to locate output files in a separate directory?
101 ifdef O 101 ifdef O
102 ifeq ("$(origin O)", "command line") 102 ifeq ("$(origin O)", "command line")
103 KBUILD_OUTPUT := $(O) 103 KBUILD_OUTPUT := $(O)
104 endif 104 endif
105 endif 105 endif
106 106
107 # That's our default target when none is given on the command line 107 # That's our default target when none is given on the command line
108 PHONY := _all 108 PHONY := _all
109 _all: 109 _all:
110 110
111 # Cancel implicit rules on top Makefile 111 # Cancel implicit rules on top Makefile
112 $(CURDIR)/Makefile Makefile: ; 112 $(CURDIR)/Makefile Makefile: ;
113 113
114 ifneq ($(KBUILD_OUTPUT),) 114 ifneq ($(KBUILD_OUTPUT),)
115 # Invoke a second make in the output directory, passing relevant variables 115 # Invoke a second make in the output directory, passing relevant variables
116 # check that the output directory actually exists 116 # check that the output directory actually exists
117 saved-output := $(KBUILD_OUTPUT) 117 saved-output := $(KBUILD_OUTPUT)
118 KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) 118 KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
119 $(if $(KBUILD_OUTPUT),, \ 119 $(if $(KBUILD_OUTPUT),, \
120 $(error output directory "$(saved-output)" does not exist)) 120 $(error output directory "$(saved-output)" does not exist))
121 121
122 PHONY += $(MAKECMDGOALS) sub-make 122 PHONY += $(MAKECMDGOALS) sub-make
123 123
124 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make 124 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
125 $(Q)@: 125 $(Q)@:
126 126
127 sub-make: FORCE 127 sub-make: FORCE
128 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ 128 $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
129 KBUILD_SRC=$(CURDIR) \ 129 KBUILD_SRC=$(CURDIR) \
130 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ 130 KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
131 $(filter-out _all sub-make,$(MAKECMDGOALS)) 131 $(filter-out _all sub-make,$(MAKECMDGOALS))
132 132
133 # Leave processing to above invocation of make 133 # Leave processing to above invocation of make
134 skip-makefile := 1 134 skip-makefile := 1
135 endif # ifneq ($(KBUILD_OUTPUT),) 135 endif # ifneq ($(KBUILD_OUTPUT),)
136 endif # ifeq ($(KBUILD_SRC),) 136 endif # ifeq ($(KBUILD_SRC),)
137 137
138 # We process the rest of the Makefile if this is the final invocation of make 138 # We process the rest of the Makefile if this is the final invocation of make
139 ifeq ($(skip-makefile),) 139 ifeq ($(skip-makefile),)
140 140
141 # If building an external module we do not care about the all: rule 141 # If building an external module we do not care about the all: rule
142 # but instead _all depend on modules 142 # but instead _all depend on modules
143 PHONY += all 143 PHONY += all
144 ifeq ($(KBUILD_EXTMOD),) 144 ifeq ($(KBUILD_EXTMOD),)
145 _all: all 145 _all: all
146 else 146 else
147 _all: modules 147 _all: modules
148 endif 148 endif
149 149
150 srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) 150 srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
151 TOPDIR := $(srctree) 151 TOPDIR := $(srctree)
152 # FIXME - TOPDIR is obsolete, use srctree/objtree 152 # FIXME - TOPDIR is obsolete, use srctree/objtree
153 objtree := $(CURDIR) 153 objtree := $(CURDIR)
154 src := $(srctree) 154 src := $(srctree)
155 obj := $(objtree) 155 obj := $(objtree)
156 156
157 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) 157 VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
158 158
159 export srctree objtree VPATH TOPDIR 159 export srctree objtree VPATH TOPDIR
160 160
161 161
162 # SUBARCH tells the usermode build what the underlying arch is. That is set 162 # SUBARCH tells the usermode build what the underlying arch is. That is set
163 # first, and if a usermode build is happening, the "ARCH=um" on the command 163 # first, and if a usermode build is happening, the "ARCH=um" on the command
164 # line overrides the setting of ARCH below. If a native build is happening, 164 # line overrides the setting of ARCH below. If a native build is happening,
165 # then ARCH is assigned, getting whatever value it gets normally, and 165 # then ARCH is assigned, getting whatever value it gets normally, and
166 # SUBARCH is subsequently ignored. 166 # SUBARCH is subsequently ignored.
167 167
168 SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ 168 SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
169 -e s/arm.*/arm/ -e s/sa110/arm/ \ 169 -e s/arm.*/arm/ -e s/sa110/arm/ \
170 -e s/s390x/s390/ -e s/parisc64/parisc/ \ 170 -e s/s390x/s390/ -e s/parisc64/parisc/ \
171 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ 171 -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
172 -e s/sh.*/sh/ ) 172 -e s/sh.*/sh/ )
173 173
174 # Cross compiling and selecting different set of gcc/bin-utils 174 # Cross compiling and selecting different set of gcc/bin-utils
175 # --------------------------------------------------------------------------- 175 # ---------------------------------------------------------------------------
176 # 176 #
177 # When performing cross compilation for other architectures ARCH shall be set 177 # When performing cross compilation for other architectures ARCH shall be set
178 # to the target architecture. (See arch/* for the possibilities). 178 # to the target architecture. (See arch/* for the possibilities).
179 # ARCH can be set during invocation of make: 179 # ARCH can be set during invocation of make:
180 # make ARCH=ia64 180 # make ARCH=ia64
181 # Another way is to have ARCH set in the environment. 181 # Another way is to have ARCH set in the environment.
182 # The default ARCH is the host where make is executed. 182 # The default ARCH is the host where make is executed.
183 183
184 # CROSS_COMPILE specify the prefix used for all executables used 184 # CROSS_COMPILE specify the prefix used for all executables used
185 # during compilation. Only gcc and related bin-utils executables 185 # during compilation. Only gcc and related bin-utils executables
186 # are prefixed with $(CROSS_COMPILE). 186 # are prefixed with $(CROSS_COMPILE).
187 # CROSS_COMPILE can be set on the command line 187 # CROSS_COMPILE can be set on the command line
188 # make CROSS_COMPILE=ia64-linux- 188 # make CROSS_COMPILE=ia64-linux-
189 # Alternatively CROSS_COMPILE can be set in the environment. 189 # Alternatively CROSS_COMPILE can be set in the environment.
190 # Default value for CROSS_COMPILE is not to prefix executables 190 # Default value for CROSS_COMPILE is not to prefix executables
191 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile 191 # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
192 export KBUILD_BUILDHOST := $(SUBARCH) 192 export KBUILD_BUILDHOST := $(SUBARCH)
193 ARCH ?= $(SUBARCH) 193 ARCH ?= $(SUBARCH)
194 CROSS_COMPILE ?= 194 CROSS_COMPILE ?=
195 195
196 # Architecture as present in compile.h 196 # Architecture as present in compile.h
197 UTS_MACHINE := $(ARCH) 197 UTS_MACHINE := $(ARCH)
198 SRCARCH := $(ARCH) 198 SRCARCH := $(ARCH)
199 199
200 # Additional ARCH settings for x86 200 # Additional ARCH settings for x86
201 ifeq ($(ARCH),i386) 201 ifeq ($(ARCH),i386)
202 SRCARCH := x86 202 SRCARCH := x86
203 endif 203 endif
204 ifeq ($(ARCH),x86_64) 204 ifeq ($(ARCH),x86_64)
205 SRCARCH := x86 205 SRCARCH := x86
206 endif 206 endif
207 207
208 KCONFIG_CONFIG ?= .config 208 KCONFIG_CONFIG ?= .config
209 209
210 # SHELL used by kbuild 210 # SHELL used by kbuild
211 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ 211 CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
212 else if [ -x /bin/bash ]; then echo /bin/bash; \ 212 else if [ -x /bin/bash ]; then echo /bin/bash; \
213 else echo sh; fi ; fi) 213 else echo sh; fi ; fi)
214 214
215 HOSTCC = gcc 215 HOSTCC = gcc
216 HOSTCXX = g++ 216 HOSTCXX = g++
217 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer 217 HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
218 HOSTCXXFLAGS = -O2 218 HOSTCXXFLAGS = -O2
219 219
220 # Decide whether to build built-in, modular, or both. 220 # Decide whether to build built-in, modular, or both.
221 # Normally, just do built-in. 221 # Normally, just do built-in.
222 222
223 KBUILD_MODULES := 223 KBUILD_MODULES :=
224 KBUILD_BUILTIN := 1 224 KBUILD_BUILTIN := 1
225 225
226 # If we have only "make modules", don't compile built-in objects. 226 # If we have only "make modules", don't compile built-in objects.
227 # When we're building modules with modversions, we need to consider 227 # When we're building modules with modversions, we need to consider
228 # the built-in objects during the descend as well, in order to 228 # the built-in objects during the descend as well, in order to
229 # make sure the checksums are up to date before we record them. 229 # make sure the checksums are up to date before we record them.
230 230
231 ifeq ($(MAKECMDGOALS),modules) 231 ifeq ($(MAKECMDGOALS),modules)
232 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) 232 KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
233 endif 233 endif
234 234
235 # If we have "make <whatever> modules", compile modules 235 # If we have "make <whatever> modules", compile modules
236 # in addition to whatever we do anyway. 236 # in addition to whatever we do anyway.
237 # Just "make" or "make all" shall build modules as well 237 # Just "make" or "make all" shall build modules as well
238 238
239 ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) 239 ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
240 KBUILD_MODULES := 1 240 KBUILD_MODULES := 1
241 endif 241 endif
242 242
243 ifeq ($(MAKECMDGOALS),) 243 ifeq ($(MAKECMDGOALS),)
244 KBUILD_MODULES := 1 244 KBUILD_MODULES := 1
245 endif 245 endif
246 246
247 export KBUILD_MODULES KBUILD_BUILTIN 247 export KBUILD_MODULES KBUILD_BUILTIN
248 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD 248 export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
249 249
250 # Beautify output 250 # Beautify output
251 # --------------------------------------------------------------------------- 251 # ---------------------------------------------------------------------------
252 # 252 #
253 # Normally, we echo the whole command before executing it. By making 253 # Normally, we echo the whole command before executing it. By making
254 # that echo $($(quiet)$(cmd)), we now have the possibility to set 254 # that echo $($(quiet)$(cmd)), we now have the possibility to set
255 # $(quiet) to choose other forms of output instead, e.g. 255 # $(quiet) to choose other forms of output instead, e.g.
256 # 256 #
257 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ 257 # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
258 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< 258 # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
259 # 259 #
260 # If $(quiet) is empty, the whole command will be printed. 260 # If $(quiet) is empty, the whole command will be printed.
261 # If it is set to "quiet_", only the short version will be printed. 261 # If it is set to "quiet_", only the short version will be printed.
262 # If it is set to "silent_", nothing will be printed at all, since 262 # If it is set to "silent_", nothing will be printed at all, since
263 # the variable $(silent_cmd_cc_o_c) doesn't exist. 263 # the variable $(silent_cmd_cc_o_c) doesn't exist.
264 # 264 #
265 # A simple variant is to prefix commands with $(Q) - that's useful 265 # A simple variant is to prefix commands with $(Q) - that's useful
266 # for commands that shall be hidden in non-verbose mode. 266 # for commands that shall be hidden in non-verbose mode.
267 # 267 #
268 # $(Q)ln $@ :< 268 # $(Q)ln $@ :<
269 # 269 #
270 # If KBUILD_VERBOSE equals 0 then the above command will be hidden. 270 # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
271 # If KBUILD_VERBOSE equals 1 then the above command is displayed. 271 # If KBUILD_VERBOSE equals 1 then the above command is displayed.
272 272
273 ifeq ($(KBUILD_VERBOSE),1) 273 ifeq ($(KBUILD_VERBOSE),1)
274 quiet = 274 quiet =
275 Q = 275 Q =
276 else 276 else
277 quiet=quiet_ 277 quiet=quiet_
278 Q = @ 278 Q = @
279 endif 279 endif
280 280
281 # If the user is running make -s (silent mode), suppress echoing of 281 # If the user is running make -s (silent mode), suppress echoing of
282 # commands 282 # commands
283 283
284 ifneq ($(findstring s,$(MAKEFLAGS)),) 284 ifneq ($(findstring s,$(MAKEFLAGS)),)
285 quiet=silent_ 285 quiet=silent_
286 endif 286 endif
287 287
288 export quiet Q KBUILD_VERBOSE 288 export quiet Q KBUILD_VERBOSE
289 289
290 290
291 # Look for make include files relative to root of kernel src 291 # Look for make include files relative to root of kernel src
292 MAKEFLAGS += --include-dir=$(srctree) 292 MAKEFLAGS += --include-dir=$(srctree)
293 293
294 # We need some generic definitions (do not try to remake the file). 294 # We need some generic definitions (do not try to remake the file).
295 $(srctree)/scripts/Kbuild.include: ; 295 $(srctree)/scripts/Kbuild.include: ;
296 include $(srctree)/scripts/Kbuild.include 296 include $(srctree)/scripts/Kbuild.include
297 297
298 # Make variables (CC, etc...) 298 # Make variables (CC, etc...)
299 299
300 AS = $(CROSS_COMPILE)as 300 AS = $(CROSS_COMPILE)as
301 LD = $(CROSS_COMPILE)ld 301 LD = $(CROSS_COMPILE)ld
302 CC = $(CROSS_COMPILE)gcc 302 CC = $(CROSS_COMPILE)gcc
303 CPP = $(CC) -E 303 CPP = $(CC) -E
304 AR = $(CROSS_COMPILE)ar 304 AR = $(CROSS_COMPILE)ar
305 NM = $(CROSS_COMPILE)nm 305 NM = $(CROSS_COMPILE)nm
306 STRIP = $(CROSS_COMPILE)strip 306 STRIP = $(CROSS_COMPILE)strip
307 OBJCOPY = $(CROSS_COMPILE)objcopy 307 OBJCOPY = $(CROSS_COMPILE)objcopy
308 OBJDUMP = $(CROSS_COMPILE)objdump 308 OBJDUMP = $(CROSS_COMPILE)objdump
309 AWK = awk 309 AWK = awk
310 GENKSYMS = scripts/genksyms/genksyms 310 GENKSYMS = scripts/genksyms/genksyms
311 DEPMOD = /sbin/depmod 311 DEPMOD = /sbin/depmod
312 KALLSYMS = scripts/kallsyms 312 KALLSYMS = scripts/kallsyms
313 PERL = perl 313 PERL = perl
314 CHECK = sparse 314 CHECK = sparse
315 315
316 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF) 316 CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF)
317 MODFLAGS = -DMODULE 317 MODFLAGS = -DMODULE
318 CFLAGS_MODULE = $(MODFLAGS) 318 CFLAGS_MODULE = $(MODFLAGS)
319 AFLAGS_MODULE = $(MODFLAGS) 319 AFLAGS_MODULE = $(MODFLAGS)
320 LDFLAGS_MODULE = 320 LDFLAGS_MODULE =
321 CFLAGS_KERNEL = 321 CFLAGS_KERNEL =
322 AFLAGS_KERNEL = 322 AFLAGS_KERNEL =
323 323
324 324
325 # Use LINUXINCLUDE when you must reference the include/ directory. 325 # Use LINUXINCLUDE when you must reference the include/ directory.
326 # Needed to be compatible with the O= option 326 # Needed to be compatible with the O= option
327 LINUXINCLUDE := -Iinclude \ 327 LINUXINCLUDE := -Iinclude \
328 $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ 328 $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
329 -include include/linux/autoconf.h 329 -include include/linux/autoconf.h
330 330
331 KBUILD_CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE) 331 KBUILD_CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
332 332
333 KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ 333 KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
334 -fno-strict-aliasing -fno-common \ 334 -fno-strict-aliasing -fno-common \
335 -Werror-implicit-function-declaration 335 -Werror-implicit-function-declaration
336 KBUILD_AFLAGS := -D__ASSEMBLY__ 336 KBUILD_AFLAGS := -D__ASSEMBLY__
337 337
338 # Read KERNELRELEASE from include/config/kernel.release (if it exists) 338 # Read KERNELRELEASE from include/config/kernel.release (if it exists)
339 KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) 339 KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
340 KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) 340 KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
341 341
342 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION 342 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
343 export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC 343 export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
344 export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE 344 export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE
345 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS 345 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
346 346
347 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS 347 export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
348 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE 348 export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
349 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE 349 export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
350 350
351 # When compiling out-of-tree modules, put MODVERDIR in the module 351 # When compiling out-of-tree modules, put MODVERDIR in the module
352 # tree rather than in the kernel tree. The kernel tree might 352 # tree rather than in the kernel tree. The kernel tree might
353 # even be read-only. 353 # even be read-only.
354 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions 354 export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
355 355
356 # Files to ignore in find ... statements 356 # Files to ignore in find ... statements
357 357
358 RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o 358 RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o
359 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git 359 export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git
360 360
361 # =========================================================================== 361 # ===========================================================================
362 # Rules shared between *config targets and build targets 362 # Rules shared between *config targets and build targets
363 363
364 # Basic helpers built in scripts/ 364 # Basic helpers built in scripts/
365 PHONY += scripts_basic 365 PHONY += scripts_basic
366 scripts_basic: 366 scripts_basic:
367 $(Q)$(MAKE) $(build)=scripts/basic 367 $(Q)$(MAKE) $(build)=scripts/basic
368 368
369 # To avoid any implicit rule to kick in, define an empty command. 369 # To avoid any implicit rule to kick in, define an empty command.
370 scripts/basic/%: scripts_basic ; 370 scripts/basic/%: scripts_basic ;
371 371
372 PHONY += outputmakefile 372 PHONY += outputmakefile
373 # outputmakefile generates a Makefile in the output directory, if using a 373 # outputmakefile generates a Makefile in the output directory, if using a
374 # separate output directory. This allows convenient use of make in the 374 # separate output directory. This allows convenient use of make in the
375 # output directory. 375 # output directory.
376 outputmakefile: 376 outputmakefile:
377 ifneq ($(KBUILD_SRC),) 377 ifneq ($(KBUILD_SRC),)
378 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ 378 $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
379 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) 379 $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
380 endif 380 endif
381 381
382 # To make sure we do not include .config for any of the *config targets 382 # To make sure we do not include .config for any of the *config targets
383 # catch them early, and hand them over to scripts/kconfig/Makefile 383 # catch them early, and hand them over to scripts/kconfig/Makefile
384 # It is allowed to specify more targets when calling make, including 384 # It is allowed to specify more targets when calling make, including
385 # mixing *config targets and build targets. 385 # mixing *config targets and build targets.
386 # For example 'make oldconfig all'. 386 # For example 'make oldconfig all'.
387 # Detect when mixed targets is specified, and make a second invocation 387 # Detect when mixed targets is specified, and make a second invocation
388 # of make so .config is not included in this case either (for *config). 388 # of make so .config is not included in this case either (for *config).
389 389
390 no-dot-config-targets := clean mrproper distclean \ 390 no-dot-config-targets := clean mrproper distclean \
391 cscope TAGS tags help %docs check% \ 391 cscope TAGS tags help %docs check% \
392 include/linux/version.h headers_% \ 392 include/linux/version.h headers_% \
393 kernelrelease kernelversion 393 kernelrelease kernelversion
394 394
395 config-targets := 0 395 config-targets := 0
396 mixed-targets := 0 396 mixed-targets := 0
397 dot-config := 1 397 dot-config := 1
398 398
399 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) 399 ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
400 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) 400 ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
401 dot-config := 0 401 dot-config := 0
402 endif 402 endif
403 endif 403 endif
404 404
405 ifeq ($(KBUILD_EXTMOD),) 405 ifeq ($(KBUILD_EXTMOD),)
406 ifneq ($(filter config %config,$(MAKECMDGOALS)),) 406 ifneq ($(filter config %config,$(MAKECMDGOALS)),)
407 config-targets := 1 407 config-targets := 1
408 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) 408 ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
409 mixed-targets := 1 409 mixed-targets := 1
410 endif 410 endif
411 endif 411 endif
412 endif 412 endif
413 413
414 ifeq ($(mixed-targets),1) 414 ifeq ($(mixed-targets),1)
415 # =========================================================================== 415 # ===========================================================================
416 # We're called with mixed targets (*config and build targets). 416 # We're called with mixed targets (*config and build targets).
417 # Handle them one by one. 417 # Handle them one by one.
418 418
419 %:: FORCE 419 %:: FORCE
420 $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ 420 $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@
421 421
422 else 422 else
423 ifeq ($(config-targets),1) 423 ifeq ($(config-targets),1)
424 # =========================================================================== 424 # ===========================================================================
425 # *config targets only - make sure prerequisites are updated, and descend 425 # *config targets only - make sure prerequisites are updated, and descend
426 # in scripts/kconfig to make the *config target 426 # in scripts/kconfig to make the *config target
427 427
428 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. 428 # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
429 # KBUILD_DEFCONFIG may point out an alternative default configuration 429 # KBUILD_DEFCONFIG may point out an alternative default configuration
430 # used for 'make defconfig' 430 # used for 'make defconfig'
431 include $(srctree)/arch/$(SRCARCH)/Makefile 431 include $(srctree)/arch/$(SRCARCH)/Makefile
432 export KBUILD_DEFCONFIG 432 export KBUILD_DEFCONFIG
433 433
434 config %config: scripts_basic outputmakefile FORCE 434 config %config: scripts_basic outputmakefile FORCE
435 $(Q)mkdir -p include/linux include/config 435 $(Q)mkdir -p include/linux include/config
436 $(Q)$(MAKE) $(build)=scripts/kconfig $@ 436 $(Q)$(MAKE) $(build)=scripts/kconfig $@
437 437
438 else 438 else
439 # =========================================================================== 439 # ===========================================================================
440 # Build targets only - this includes vmlinux, arch specific targets, clean 440 # Build targets only - this includes vmlinux, arch specific targets, clean
441 # targets and others. In general all targets except *config targets. 441 # targets and others. In general all targets except *config targets.
442 442
443 ifeq ($(KBUILD_EXTMOD),) 443 ifeq ($(KBUILD_EXTMOD),)
444 # Additional helpers built in scripts/ 444 # Additional helpers built in scripts/
445 # Carefully list dependencies so we do not try to build scripts twice 445 # Carefully list dependencies so we do not try to build scripts twice
446 # in parallel 446 # in parallel
447 PHONY += scripts 447 PHONY += scripts
448 scripts: scripts_basic include/config/auto.conf 448 scripts: scripts_basic include/config/auto.conf
449 $(Q)$(MAKE) $(build)=$(@) 449 $(Q)$(MAKE) $(build)=$(@)
450 450
451 # Objects we will link into vmlinux / subdirs we need to visit 451 # Objects we will link into vmlinux / subdirs we need to visit
452 init-y := init/ 452 init-y := init/
453 drivers-y := drivers/ sound/ 453 drivers-y := drivers/ sound/
454 net-y := net/ 454 net-y := net/
455 libs-y := lib/ 455 libs-y := lib/
456 core-y := usr/ 456 core-y := usr/
457 endif # KBUILD_EXTMOD 457 endif # KBUILD_EXTMOD
458 458
459 ifeq ($(dot-config),1) 459 ifeq ($(dot-config),1)
460 # Read in config 460 # Read in config
461 -include include/config/auto.conf 461 -include include/config/auto.conf
462 462
463 ifeq ($(KBUILD_EXTMOD),) 463 ifeq ($(KBUILD_EXTMOD),)
464 # Read in dependencies to all Kconfig* files, make sure to run 464 # Read in dependencies to all Kconfig* files, make sure to run
465 # oldconfig if changes are detected. 465 # oldconfig if changes are detected.
466 -include include/config/auto.conf.cmd 466 -include include/config/auto.conf.cmd
467 467
468 # To avoid any implicit rule to kick in, define an empty command 468 # To avoid any implicit rule to kick in, define an empty command
469 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; 469 $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
470 470
471 # If .config is newer than include/config/auto.conf, someone tinkered 471 # If .config is newer than include/config/auto.conf, someone tinkered
472 # with it and forgot to run make oldconfig. 472 # with it and forgot to run make oldconfig.
473 # if auto.conf.cmd is missing then we are probably in a cleaned tree so 473 # if auto.conf.cmd is missing then we are probably in a cleaned tree so
474 # we execute the config step to be sure to catch updated Kconfig files 474 # we execute the config step to be sure to catch updated Kconfig files
475 include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd 475 include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
476 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig 476 $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
477 else 477 else
478 # external modules needs include/linux/autoconf.h and include/config/auto.conf 478 # external modules needs include/linux/autoconf.h and include/config/auto.conf
479 # but do not care if they are up-to-date. Use auto.conf to trigger the test 479 # but do not care if they are up-to-date. Use auto.conf to trigger the test
480 PHONY += include/config/auto.conf 480 PHONY += include/config/auto.conf
481 481
482 include/config/auto.conf: 482 include/config/auto.conf:
483 $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \ 483 $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \
484 echo; \ 484 echo; \
485 echo " ERROR: Kernel configuration is invalid."; \ 485 echo " ERROR: Kernel configuration is invalid."; \
486 echo " include/linux/autoconf.h or $@ are missing."; \ 486 echo " include/linux/autoconf.h or $@ are missing."; \
487 echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ 487 echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \
488 echo; \ 488 echo; \
489 /bin/false) 489 /bin/false)
490 490
491 endif # KBUILD_EXTMOD 491 endif # KBUILD_EXTMOD
492 492
493 else 493 else
494 # Dummy target needed, because used as prerequisite 494 # Dummy target needed, because used as prerequisite
495 include/config/auto.conf: ; 495 include/config/auto.conf: ;
496 endif # $(dot-config) 496 endif # $(dot-config)
497 497
498 # The all: target is the default when no target is given on the 498 # The all: target is the default when no target is given on the
499 # command line. 499 # command line.
500 # This allow a user to issue only 'make' to build a kernel including modules 500 # This allow a user to issue only 'make' to build a kernel including modules
501 # Defaults vmlinux but it is usually overridden in the arch makefile 501 # Defaults vmlinux but it is usually overridden in the arch makefile
502 all: vmlinux 502 all: vmlinux
503 503
504 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE 504 ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
505 KBUILD_CFLAGS += -Os 505 KBUILD_CFLAGS += -Os
506 else 506 else
507 KBUILD_CFLAGS += -O2 507 KBUILD_CFLAGS += -O2
508 endif 508 endif
509 509
510 ifneq (CONFIG_FRAME_WARN,0) 510 ifneq (CONFIG_FRAME_WARN,0)
511 KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) 511 KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
512 endif 512 endif
513 513
514 # Force gcc to behave correct even for buggy distributions 514 # Force gcc to behave correct even for buggy distributions
515 # Arch Makefiles may override this setting 515 # Arch Makefiles may override this setting
516 KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) 516 KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)
517 517
518 include $(srctree)/arch/$(SRCARCH)/Makefile 518 include $(srctree)/arch/$(SRCARCH)/Makefile
519 519
520 ifdef CONFIG_FRAME_POINTER 520 ifdef CONFIG_FRAME_POINTER
521 KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls 521 KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
522 else 522 else
523 KBUILD_CFLAGS += -fomit-frame-pointer 523 KBUILD_CFLAGS += -fomit-frame-pointer
524 endif 524 endif
525 525
526 ifdef CONFIG_DEBUG_INFO 526 ifdef CONFIG_DEBUG_INFO
527 KBUILD_CFLAGS += -g 527 KBUILD_CFLAGS += -g
528 KBUILD_AFLAGS += -gdwarf-2 528 KBUILD_AFLAGS += -gdwarf-2
529 endif 529 endif
530 530
531 # We trigger additional mismatches with less inlining 531 # We trigger additional mismatches with less inlining
532 ifdef CONFIG_DEBUG_SECTION_MISMATCH 532 ifdef CONFIG_DEBUG_SECTION_MISMATCH
533 KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) 533 KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
534 endif 534 endif
535 535
536 # arch Makefile may override CC so keep this after arch Makefile is included 536 # arch Makefile may override CC so keep this after arch Makefile is included
537 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) 537 NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
538 CHECKFLAGS += $(NOSTDINC_FLAGS) 538 CHECKFLAGS += $(NOSTDINC_FLAGS)
539 539
540 # warn about C99 declaration after statement 540 # warn about C99 declaration after statement
541 KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) 541 KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
542 542
543 # disable pointer signed / unsigned warnings in gcc 4.0 543 # disable pointer signed / unsigned warnings in gcc 4.0
544 KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) 544 KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)
545 545
546 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments 546 # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
547 # But warn user when we do so 547 # But warn user when we do so
548 warn-assign = \ 548 warn-assign = \
549 $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") 549 $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)")
550 550
551 ifneq ($(KCPPFLAGS),) 551 ifneq ($(KCPPFLAGS),)
552 $(call warn-assign,CPPFLAGS) 552 $(call warn-assign,CPPFLAGS)
553 KBUILD_CPPFLAGS += $(KCPPFLAGS) 553 KBUILD_CPPFLAGS += $(KCPPFLAGS)
554 endif 554 endif
555 ifneq ($(KAFLAGS),) 555 ifneq ($(KAFLAGS),)
556 $(call warn-assign,AFLAGS) 556 $(call warn-assign,AFLAGS)
557 KBUILD_AFLAGS += $(KAFLAGS) 557 KBUILD_AFLAGS += $(KAFLAGS)
558 endif 558 endif
559 ifneq ($(KCFLAGS),) 559 ifneq ($(KCFLAGS),)
560 $(call warn-assign,CFLAGS) 560 $(call warn-assign,CFLAGS)
561 KBUILD_CFLAGS += $(KCFLAGS) 561 KBUILD_CFLAGS += $(KCFLAGS)
562 endif 562 endif
563 563
564 # Use --build-id when available. 564 # Use --build-id when available.
565 LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ 565 LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
566 $(call ld-option, -Wl$(comma)--build-id,)) 566 $(call ld-option, -Wl$(comma)--build-id,))
567 LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) 567 LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
568 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) 568 LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
569 569
570 # Default kernel image to build when no specific target is given. 570 # Default kernel image to build when no specific target is given.
571 # KBUILD_IMAGE may be overruled on the command line or 571 # KBUILD_IMAGE may be overruled on the command line or
572 # set in the environment 572 # set in the environment
573 # Also any assignments in arch/$(ARCH)/Makefile take precedence over 573 # Also any assignments in arch/$(ARCH)/Makefile take precedence over
574 # this default value 574 # this default value
575 export KBUILD_IMAGE ?= vmlinux 575 export KBUILD_IMAGE ?= vmlinux
576 576
577 # 577 #
578 # INSTALL_PATH specifies where to place the updated kernel and system map 578 # INSTALL_PATH specifies where to place the updated kernel and system map
579 # images. Default is /boot, but you can set it to other values 579 # images. Default is /boot, but you can set it to other values
580 export INSTALL_PATH ?= /boot 580 export INSTALL_PATH ?= /boot
581 581
582 # 582 #
583 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory 583 # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
584 # relocations required by build roots. This is not defined in the 584 # relocations required by build roots. This is not defined in the
585 # makefile but the argument can be passed to make if needed. 585 # makefile but the argument can be passed to make if needed.
586 # 586 #
587 587
588 MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) 588 MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
589 export MODLIB 589 export MODLIB
590 590
591 # 591 #
592 # INSTALL_MOD_STRIP, if defined, will cause modules to be 592 # INSTALL_MOD_STRIP, if defined, will cause modules to be
593 # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then 593 # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then
594 # the default option --strip-debug will be used. Otherwise, 594 # the default option --strip-debug will be used. Otherwise,
595 # INSTALL_MOD_STRIP will used as the options to the strip command. 595 # INSTALL_MOD_STRIP will used as the options to the strip command.
596 596
597 ifdef INSTALL_MOD_STRIP 597 ifdef INSTALL_MOD_STRIP
598 ifeq ($(INSTALL_MOD_STRIP),1) 598 ifeq ($(INSTALL_MOD_STRIP),1)
599 mod_strip_cmd = $(STRIP) --strip-debug 599 mod_strip_cmd = $(STRIP) --strip-debug
600 else 600 else
601 mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) 601 mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
602 endif # INSTALL_MOD_STRIP=1 602 endif # INSTALL_MOD_STRIP=1
603 else 603 else
604 mod_strip_cmd = true 604 mod_strip_cmd = true
605 endif # INSTALL_MOD_STRIP 605 endif # INSTALL_MOD_STRIP
606 export mod_strip_cmd 606 export mod_strip_cmd
607 607
608 608
609 ifeq ($(KBUILD_EXTMOD),) 609 ifeq ($(KBUILD_EXTMOD),)
610 core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ 610 core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/
611 611
612 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ 612 vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
613 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ 613 $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
614 $(net-y) $(net-m) $(libs-y) $(libs-m))) 614 $(net-y) $(net-m) $(libs-y) $(libs-m)))
615 615
616 vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ 616 vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
617 $(init-n) $(init-) \ 617 $(init-n) $(init-) \
618 $(core-n) $(core-) $(drivers-n) $(drivers-) \ 618 $(core-n) $(core-) $(drivers-n) $(drivers-) \
619 $(net-n) $(net-) $(libs-n) $(libs-)))) 619 $(net-n) $(net-) $(libs-n) $(libs-))))
620 620
621 init-y := $(patsubst %/, %/built-in.o, $(init-y)) 621 init-y := $(patsubst %/, %/built-in.o, $(init-y))
622 core-y := $(patsubst %/, %/built-in.o, $(core-y)) 622 core-y := $(patsubst %/, %/built-in.o, $(core-y))
623 drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) 623 drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))
624 net-y := $(patsubst %/, %/built-in.o, $(net-y)) 624 net-y := $(patsubst %/, %/built-in.o, $(net-y))
625 libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) 625 libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))
626 libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) 626 libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))
627 libs-y := $(libs-y1) $(libs-y2) 627 libs-y := $(libs-y1) $(libs-y2)
628 628
629 # Build vmlinux 629 # Build vmlinux
630 # --------------------------------------------------------------------------- 630 # ---------------------------------------------------------------------------
631 # vmlinux is built from the objects selected by $(vmlinux-init) and 631 # vmlinux is built from the objects selected by $(vmlinux-init) and
632 # $(vmlinux-main). Most are built-in.o files from top-level directories 632 # $(vmlinux-main). Most are built-in.o files from top-level directories
633 # in the kernel tree, others are specified in arch/$(ARCH)/Makefile. 633 # in the kernel tree, others are specified in arch/$(ARCH)/Makefile.
634 # Ordering when linking is important, and $(vmlinux-init) must be first. 634 # Ordering when linking is important, and $(vmlinux-init) must be first.
635 # 635 #
636 # vmlinux 636 # vmlinux
637 # ^ 637 # ^
638 # | 638 # |
639 # +-< $(vmlinux-init) 639 # +-< $(vmlinux-init)
640 # | +--< init/version.o + more 640 # | +--< init/version.o + more
641 # | 641 # |
642 # +--< $(vmlinux-main) 642 # +--< $(vmlinux-main)
643 # | +--< driver/built-in.o mm/built-in.o + more 643 # | +--< driver/built-in.o mm/built-in.o + more
644 # | 644 # |
645 # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) 645 # +-< kallsyms.o (see description in CONFIG_KALLSYMS section)
646 # 646 #
647 # vmlinux version (uname -v) cannot be updated during normal 647 # vmlinux version (uname -v) cannot be updated during normal
648 # descending-into-subdirs phase since we do not yet know if we need to 648 # descending-into-subdirs phase since we do not yet know if we need to
649 # update vmlinux. 649 # update vmlinux.
650 # Therefore this step is delayed until just before final link of vmlinux - 650 # Therefore this step is delayed until just before final link of vmlinux -
651 # except in the kallsyms case where it is done just before adding the 651 # except in the kallsyms case where it is done just before adding the
652 # symbols to the kernel. 652 # symbols to the kernel.
653 # 653 #
654 # System.map is generated to document addresses of all kernel symbols 654 # System.map is generated to document addresses of all kernel symbols
655 655
656 vmlinux-init := $(head-y) $(init-y) 656 vmlinux-init := $(head-y) $(init-y)
657 vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) 657 vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)
658 vmlinux-all := $(vmlinux-init) $(vmlinux-main) 658 vmlinux-all := $(vmlinux-init) $(vmlinux-main)
659 vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds 659 vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds
660 export KBUILD_VMLINUX_OBJS := $(vmlinux-all) 660 export KBUILD_VMLINUX_OBJS := $(vmlinux-all)
661 661
662 # Rule to link vmlinux - also used during CONFIG_KALLSYMS 662 # Rule to link vmlinux - also used during CONFIG_KALLSYMS
663 # May be overridden by arch/$(ARCH)/Makefile 663 # May be overridden by arch/$(ARCH)/Makefile
664 quiet_cmd_vmlinux__ ?= LD $@ 664 quiet_cmd_vmlinux__ ?= LD $@
665 cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ 665 cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \
666 -T $(vmlinux-lds) $(vmlinux-init) \ 666 -T $(vmlinux-lds) $(vmlinux-init) \
667 --start-group $(vmlinux-main) --end-group \ 667 --start-group $(vmlinux-main) --end-group \
668 $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) 668 $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)
669 669
670 # Generate new vmlinux version 670 # Generate new vmlinux version
671 quiet_cmd_vmlinux_version = GEN .version 671 quiet_cmd_vmlinux_version = GEN .version
672 cmd_vmlinux_version = set -e; \ 672 cmd_vmlinux_version = set -e; \
673 if [ ! -r .version ]; then \ 673 if [ ! -r .version ]; then \
674 rm -f .version; \ 674 rm -f .version; \
675 echo 1 >.version; \ 675 echo 1 >.version; \
676 else \ 676 else \
677 mv .version .old_version; \ 677 mv .version .old_version; \
678 expr 0$$(cat .old_version) + 1 >.version; \ 678 expr 0$$(cat .old_version) + 1 >.version; \
679 fi; \ 679 fi; \
680 $(MAKE) $(build)=init 680 $(MAKE) $(build)=init
681 681
682 # Generate System.map 682 # Generate System.map
683 quiet_cmd_sysmap = SYSMAP 683 quiet_cmd_sysmap = SYSMAP
684 cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap 684 cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
685 685
686 # Link of vmlinux 686 # Link of vmlinux
687 # If CONFIG_KALLSYMS is set .version is already updated 687 # If CONFIG_KALLSYMS is set .version is already updated
688 # Generate System.map and verify that the content is consistent 688 # Generate System.map and verify that the content is consistent
689 # Use + in front of the vmlinux_version rule to silent warning with make -j2 689 # Use + in front of the vmlinux_version rule to silent warning with make -j2
690 # First command is ':' to allow us to use + in front of the rule 690 # First command is ':' to allow us to use + in front of the rule
691 define rule_vmlinux__ 691 define rule_vmlinux__
692 : 692 :
693 $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) 693 $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))
694 694
695 $(call cmd,vmlinux__) 695 $(call cmd,vmlinux__)
696 $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd 696 $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
697 697
698 $(Q)$(if $($(quiet)cmd_sysmap), \ 698 $(Q)$(if $($(quiet)cmd_sysmap), \
699 echo ' $($(quiet)cmd_sysmap) System.map' &&) \ 699 echo ' $($(quiet)cmd_sysmap) System.map' &&) \
700 $(cmd_sysmap) $@ System.map; \ 700 $(cmd_sysmap) $@ System.map; \
701 if [ $$? -ne 0 ]; then \ 701 if [ $$? -ne 0 ]; then \
702 rm -f $@; \ 702 rm -f $@; \
703 /bin/false; \ 703 /bin/false; \
704 fi; 704 fi;
705 $(verify_kallsyms) 705 $(verify_kallsyms)
706 endef 706 endef
707 707
708 708
709 ifdef CONFIG_KALLSYMS 709 ifdef CONFIG_KALLSYMS
710 # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) 710 # Generate section listing all symbols and add it into vmlinux $(kallsyms.o)
711 # It's a three stage process: 711 # It's a three stage process:
712 # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is 712 # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is
713 # empty 713 # empty
714 # Running kallsyms on that gives us .tmp_kallsyms1.o with 714 # Running kallsyms on that gives us .tmp_kallsyms1.o with
715 # the right size - vmlinux version (uname -v) is updated during this step 715 # the right size - vmlinux version (uname -v) is updated during this step
716 # o .tmp_vmlinux2 now has a __kallsyms section of the right size, 716 # o .tmp_vmlinux2 now has a __kallsyms section of the right size,
717 # but due to the added section, some addresses have shifted. 717 # but due to the added section, some addresses have shifted.
718 # From here, we generate a correct .tmp_kallsyms2.o 718 # From here, we generate a correct .tmp_kallsyms2.o
719 # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. 719 # o The correct .tmp_kallsyms2.o is linked into the final vmlinux.
720 # o Verify that the System.map from vmlinux matches the map from 720 # o Verify that the System.map from vmlinux matches the map from
721 # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. 721 # .tmp_vmlinux2, just in case we did not generate kallsyms correctly.
722 # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using 722 # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using
723 # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a 723 # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a
724 # temporary bypass to allow the kernel to be built while the 724 # temporary bypass to allow the kernel to be built while the
725 # maintainers work out what went wrong with kallsyms. 725 # maintainers work out what went wrong with kallsyms.
726 726
727 ifdef CONFIG_KALLSYMS_EXTRA_PASS 727 ifdef CONFIG_KALLSYMS_EXTRA_PASS
728 last_kallsyms := 3 728 last_kallsyms := 3
729 else 729 else
730 last_kallsyms := 2 730 last_kallsyms := 2
731 endif 731 endif
732 732
733 kallsyms.o := .tmp_kallsyms$(last_kallsyms).o 733 kallsyms.o := .tmp_kallsyms$(last_kallsyms).o
734 734
735 define verify_kallsyms 735 define verify_kallsyms
736 $(Q)$(if $($(quiet)cmd_sysmap), \ 736 $(Q)$(if $($(quiet)cmd_sysmap), \
737 echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ 737 echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \
738 $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map 738 $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map
739 $(Q)cmp -s System.map .tmp_System.map || \ 739 $(Q)cmp -s System.map .tmp_System.map || \
740 (echo Inconsistent kallsyms data; \ 740 (echo Inconsistent kallsyms data; \
741 echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ 741 echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \
742 rm .tmp_kallsyms* ; /bin/false ) 742 rm .tmp_kallsyms* ; /bin/false )
743 endef 743 endef
744 744
745 # Update vmlinux version before link 745 # Update vmlinux version before link
746 # Use + in front of this rule to silent warning about make -j1 746 # Use + in front of this rule to silent warning about make -j1
747 # First command is ':' to allow us to use + in front of this rule 747 # First command is ':' to allow us to use + in front of this rule
748 cmd_ksym_ld = $(cmd_vmlinux__) 748 cmd_ksym_ld = $(cmd_vmlinux__)
749 define rule_ksym_ld 749 define rule_ksym_ld
750 : 750 :
751 +$(call cmd,vmlinux_version) 751 +$(call cmd,vmlinux_version)
752 $(call cmd,vmlinux__) 752 $(call cmd,vmlinux__)
753 $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd 753 $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
754 endef 754 endef
755 755
756 # Generate .S file with all kernel symbols 756 # Generate .S file with all kernel symbols
757 quiet_cmd_kallsyms = KSYM $@ 757 quiet_cmd_kallsyms = KSYM $@
758 cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ 758 cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \
759 $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ 759 $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@
760 760
761 .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE 761 .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE
762 $(call if_changed_dep,as_o_S) 762 $(call if_changed_dep,as_o_S)
763 763
764 .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) 764 .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)
765 $(call cmd,kallsyms) 765 $(call cmd,kallsyms)
766 766
767 # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version 767 # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version
768 .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE 768 .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE
769 $(call if_changed_rule,ksym_ld) 769 $(call if_changed_rule,ksym_ld)
770 770
771 .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE 771 .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE
772 $(call if_changed,vmlinux__) 772 $(call if_changed,vmlinux__)
773 773
774 .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE 774 .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE
775 $(call if_changed,vmlinux__) 775 $(call if_changed,vmlinux__)
776 776
777 # Needs to visit scripts/ before $(KALLSYMS) can be used. 777 # Needs to visit scripts/ before $(KALLSYMS) can be used.
778 $(KALLSYMS): scripts ; 778 $(KALLSYMS): scripts ;
779 779
780 # Generate some data for debugging strange kallsyms problems 780 # Generate some data for debugging strange kallsyms problems
781 debug_kallsyms: .tmp_map$(last_kallsyms) 781 debug_kallsyms: .tmp_map$(last_kallsyms)
782 782
783 .tmp_map%: .tmp_vmlinux% FORCE 783 .tmp_map%: .tmp_vmlinux% FORCE
784 ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ 784 ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@
785 785
786 .tmp_map3: .tmp_map2 786 .tmp_map3: .tmp_map2
787 787
788 .tmp_map2: .tmp_map1 788 .tmp_map2: .tmp_map1
789 789
790 endif # ifdef CONFIG_KALLSYMS 790 endif # ifdef CONFIG_KALLSYMS
791 791
792 # Do modpost on a prelinked vmlinux. The finally linked vmlinux has 792 # Do modpost on a prelinked vmlinux. The finally linked vmlinux has
793 # relevant sections renamed as per the linker script. 793 # relevant sections renamed as per the linker script.
794 quiet_cmd_vmlinux-modpost = LD $@ 794 quiet_cmd_vmlinux-modpost = LD $@
795 cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ 795 cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \
796 $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ 796 $(vmlinux-init) --start-group $(vmlinux-main) --end-group \
797 $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) 797 $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^)
798 define rule_vmlinux-modpost 798 define rule_vmlinux-modpost
799 : 799 :
800 +$(call cmd,vmlinux-modpost) 800 +$(call cmd,vmlinux-modpost)
801 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ 801 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@
802 $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd 802 $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd
803 endef 803 endef
804 804
805 # vmlinux image - including updated kernel symbols 805 # vmlinux image - including updated kernel symbols
806 vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE 806 vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE
807 ifdef CONFIG_HEADERS_CHECK 807 ifdef CONFIG_HEADERS_CHECK
808 $(Q)$(MAKE) -f $(srctree)/Makefile headers_check 808 $(Q)$(MAKE) -f $(srctree)/Makefile headers_check
809 endif 809 endif
810 ifdef CONFIG_SAMPLES 810 ifdef CONFIG_SAMPLES
811 $(Q)$(MAKE) $(build)=samples 811 $(Q)$(MAKE) $(build)=samples
812 endif 812 endif
813 $(call vmlinux-modpost) 813 $(call vmlinux-modpost)
814 $(call if_changed_rule,vmlinux__) 814 $(call if_changed_rule,vmlinux__)
815 $(Q)rm -f .old_version 815 $(Q)rm -f .old_version
816 816
817 # build vmlinux.o first to catch section mismatch errors early 817 # build vmlinux.o first to catch section mismatch errors early
818 ifdef CONFIG_KALLSYMS 818 ifdef CONFIG_KALLSYMS
819 .tmp_vmlinux1: vmlinux.o 819 .tmp_vmlinux1: vmlinux.o
820 endif 820 endif
821 821
822 modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) 822 modpost-init := $(filter-out init/built-in.o, $(vmlinux-init))
823 vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE 823 vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE
824 $(call if_changed_rule,vmlinux-modpost) 824 $(call if_changed_rule,vmlinux-modpost)
825 825
826 # The actual objects are generated when descending, 826 # The actual objects are generated when descending,
827 # make sure no implicit rule kicks in 827 # make sure no implicit rule kicks in
828 $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; 828 $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;
829 829
830 # Handle descending into subdirectories listed in $(vmlinux-dirs) 830 # Handle descending into subdirectories listed in $(vmlinux-dirs)
831 # Preset locale variables to speed up the build process. Limit locale 831 # Preset locale variables to speed up the build process. Limit locale
832 # tweaks to this spot to avoid wrong language settings when running 832 # tweaks to this spot to avoid wrong language settings when running
833 # make menuconfig etc. 833 # make menuconfig etc.
834 # Error messages still appears in the original language 834 # Error messages still appears in the original language
835 835
836 PHONY += $(vmlinux-dirs) 836 PHONY += $(vmlinux-dirs)
837 $(vmlinux-dirs): prepare scripts 837 $(vmlinux-dirs): prepare scripts
838 $(Q)$(MAKE) $(build)=$@ 838 $(Q)$(MAKE) $(build)=$@
839 839
840 # Build the kernel release string 840 # Build the kernel release string
841 # 841 #
842 # The KERNELRELEASE value built here is stored in the file 842 # The KERNELRELEASE value built here is stored in the file
843 # include/config/kernel.release, and is used when executing several 843 # include/config/kernel.release, and is used when executing several
844 # make targets, such as "make install" or "make modules_install." 844 # make targets, such as "make install" or "make modules_install."
845 # 845 #
846 # The eventual kernel release string consists of the following fields, 846 # The eventual kernel release string consists of the following fields,
847 # shown in a hierarchical format to show how smaller parts are concatenated 847 # shown in a hierarchical format to show how smaller parts are concatenated
848 # to form the larger and final value, with values coming from places like 848 # to form the larger and final value, with values coming from places like
849 # the Makefile, kernel config options, make command line options and/or 849 # the Makefile, kernel config options, make command line options and/or
850 # SCM tag information. 850 # SCM tag information.
851 # 851 #
852 # $(KERNELVERSION) 852 # $(KERNELVERSION)
853 # $(VERSION) eg, 2 853 # $(VERSION) eg, 2
854 # $(PATCHLEVEL) eg, 6 854 # $(PATCHLEVEL) eg, 6
855 # $(SUBLEVEL) eg, 18 855 # $(SUBLEVEL) eg, 18
856 # $(EXTRAVERSION) eg, -rc6 856 # $(EXTRAVERSION) eg, -rc6
857 # $(localver-full) 857 # $(localver-full)
858 # $(localver) 858 # $(localver)
859 # localversion* (files without backups, containing '~') 859 # localversion* (files without backups, containing '~')
860 # $(CONFIG_LOCALVERSION) (from kernel config setting) 860 # $(CONFIG_LOCALVERSION) (from kernel config setting)
861 # $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set) 861 # $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set)
862 # ./scripts/setlocalversion (SCM tag, if one exists) 862 # ./scripts/setlocalversion (SCM tag, if one exists)
863 # $(LOCALVERSION) (from make command line if provided) 863 # $(LOCALVERSION) (from make command line if provided)
864 # 864 #
865 # Note how the final $(localver-auto) string is included *only* if the 865 # Note how the final $(localver-auto) string is included *only* if the
866 # kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the 866 # kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the
867 # moment, only git is supported but other SCMs can edit the script 867 # moment, only git is supported but other SCMs can edit the script
868 # scripts/setlocalversion and add the appropriate checks as needed. 868 # scripts/setlocalversion and add the appropriate checks as needed.
869 869
870 pattern = ".*/localversion[^~]*" 870 pattern = ".*/localversion[^~]*"
871 string = $(shell cat /dev/null \ 871 string = $(shell cat /dev/null \
872 `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`) 872 `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`)
873 873
874 localver = $(subst $(space),, $(string) \ 874 localver = $(subst $(space),, $(string) \
875 $(patsubst "%",%,$(CONFIG_LOCALVERSION))) 875 $(patsubst "%",%,$(CONFIG_LOCALVERSION)))
876 876
877 # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called 877 # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called
878 # and if the SCM is know a tag from the SCM is appended. 878 # and if the SCM is know a tag from the SCM is appended.
879 # The appended tag is determined by the SCM used. 879 # The appended tag is determined by the SCM used.
880 # 880 #
881 # Currently, only git is supported. 881 # Currently, only git is supported.
882 # Other SCMs can edit scripts/setlocalversion and add the appropriate 882 # Other SCMs can edit scripts/setlocalversion and add the appropriate
883 # checks as needed. 883 # checks as needed.
884 ifdef CONFIG_LOCALVERSION_AUTO 884 ifdef CONFIG_LOCALVERSION_AUTO
885 _localver-auto = $(shell $(CONFIG_SHELL) \ 885 _localver-auto = $(shell $(CONFIG_SHELL) \
886 $(srctree)/scripts/setlocalversion $(srctree)) 886 $(srctree)/scripts/setlocalversion $(srctree))
887 localver-auto = $(LOCALVERSION)$(_localver-auto) 887 localver-auto = $(LOCALVERSION)$(_localver-auto)
888 endif 888 endif
889 889
890 localver-full = $(localver)$(localver-auto) 890 localver-full = $(localver)$(localver-auto)
891 891
892 # Store (new) KERNELRELASE string in include/config/kernel.release 892 # Store (new) KERNELRELASE string in include/config/kernel.release
893 kernelrelease = $(KERNELVERSION)$(localver-full) 893 kernelrelease = $(KERNELVERSION)$(localver-full)
894 include/config/kernel.release: include/config/auto.conf FORCE 894 include/config/kernel.release: include/config/auto.conf FORCE
895 $(Q)rm -f $@ 895 $(Q)rm -f $@
896 $(Q)echo $(kernelrelease) > $@ 896 $(Q)echo $(kernelrelease) > $@
897 897
898 898
899 # Things we need to do before we recursively start building the kernel 899 # Things we need to do before we recursively start building the kernel
900 # or the modules are listed in "prepare". 900 # or the modules are listed in "prepare".
901 # A multi level approach is used. prepareN is processed before prepareN-1. 901 # A multi level approach is used. prepareN is processed before prepareN-1.
902 # archprepare is used in arch Makefiles and when processed asm symlink, 902 # archprepare is used in arch Makefiles and when processed asm symlink,
903 # version.h and scripts_basic is processed / created. 903 # version.h and scripts_basic is processed / created.
904 904
905 # Listed in dependency order 905 # Listed in dependency order
906 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 906 PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
907 907
908 # prepare3 is used to check if we are building in a separate output directory, 908 # prepare3 is used to check if we are building in a separate output directory,
909 # and if so do: 909 # and if so do:
910 # 1) Check that make has not been executed in the kernel src $(srctree) 910 # 1) Check that make has not been executed in the kernel src $(srctree)
911 # 2) Create the include2 directory, used for the second asm symlink 911 # 2) Create the include2 directory, used for the second asm symlink
912 prepare3: include/config/kernel.release 912 prepare3: include/config/kernel.release
913 ifneq ($(KBUILD_SRC),) 913 ifneq ($(KBUILD_SRC),)
914 @echo ' Using $(srctree) as source for kernel' 914 @echo ' Using $(srctree) as source for kernel'
915 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ 915 $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
916 echo " $(srctree) is not clean, please run 'make mrproper'";\ 916 echo " $(srctree) is not clean, please run 'make mrproper'";\
917 echo " in the '$(srctree)' directory.";\ 917 echo " in the '$(srctree)' directory.";\
918 /bin/false; \ 918 /bin/false; \
919 fi; 919 fi;
920 $(Q)if [ ! -d include2 ]; then mkdir -p include2; fi; 920 $(Q)if [ ! -d include2 ]; then mkdir -p include2; fi;
921 $(Q)ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm 921 $(Q)ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm
922 endif 922 endif
923 923
924 # prepare2 creates a makefile if using a separate output directory 924 # prepare2 creates a makefile if using a separate output directory
925 prepare2: prepare3 outputmakefile 925 prepare2: prepare3 outputmakefile
926 926
927 prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \ 927 prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \
928 include/asm include/config/auto.conf 928 include/asm include/config/auto.conf
929 $(cmd_crmodverdir) 929 $(cmd_crmodverdir)
930 930
931 archprepare: prepare1 scripts_basic 931 archprepare: prepare1 scripts_basic
932 932
933 prepare0: archprepare FORCE 933 prepare0: archprepare FORCE
934 $(Q)$(MAKE) $(build)=. 934 $(Q)$(MAKE) $(build)=.
935 $(Q)$(MAKE) $(build)=. missing-syscalls 935 $(Q)$(MAKE) $(build)=. missing-syscalls
936 936
937 # All the preparing.. 937 # All the preparing..
938 prepare: prepare0 938 prepare: prepare0
939 939
940 # Leave this as default for preprocessing vmlinux.lds.S, which is now 940 # Leave this as default for preprocessing vmlinux.lds.S, which is now
941 # done in arch/$(ARCH)/kernel/Makefile 941 # done in arch/$(ARCH)/kernel/Makefile
942 942
943 export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) 943 export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
944 944
945 # The asm symlink changes when $(ARCH) changes. 945 # The asm symlink changes when $(ARCH) changes.
946 # Detect this and ask user to run make mrproper 946 # Detect this and ask user to run make mrproper
947 947
948 include/asm: FORCE 948 include/asm: FORCE
949 $(Q)set -e; asmlink=`readlink include/asm | cut -d '-' -f 2`; \ 949 $(Q)set -e; asmlink=`readlink include/asm | cut -d '-' -f 2`; \
950 if [ -L include/asm ]; then \ 950 if [ -L include/asm ]; then \
951 if [ "$$asmlink" != "$(SRCARCH)" ]; then \ 951 if [ "$$asmlink" != "$(SRCARCH)" ]; then \
952 echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \ 952 echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \
953 echo " set ARCH or save .config and run 'make mrproper' to fix it"; \ 953 echo " set ARCH or save .config and run 'make mrproper' to fix it"; \
954 exit 1; \ 954 exit 1; \
955 fi; \ 955 fi; \
956 else \ 956 else \
957 echo ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \ 957 echo ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \
958 if [ ! -d include ]; then \ 958 if [ ! -d include ]; then \
959 mkdir -p include; \ 959 mkdir -p include; \
960 fi; \ 960 fi; \
961 ln -fsn asm-$(SRCARCH) $@; \ 961 ln -fsn asm-$(SRCARCH) $@; \
962 fi 962 fi
963 963
964 # Generate some files 964 # Generate some files
965 # --------------------------------------------------------------------------- 965 # ---------------------------------------------------------------------------
966 966
967 # KERNELRELEASE can change from a few different places, meaning version.h 967 # KERNELRELEASE can change from a few different places, meaning version.h
968 # needs to be updated, so this check is forced on all builds 968 # needs to be updated, so this check is forced on all builds
969 969
970 uts_len := 64 970 uts_len := 64
971 define filechk_utsrelease.h 971 define filechk_utsrelease.h
972 if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ 972 if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
973 echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ 973 echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \
974 exit 1; \ 974 exit 1; \
975 fi; \ 975 fi; \
976 (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) 976 (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)
977 endef 977 endef
978 978
979 define filechk_version.h 979 define filechk_version.h
980 (echo \#define LINUX_VERSION_CODE $(shell \ 980 (echo \#define LINUX_VERSION_CODE $(shell \
981 expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ 981 expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \
982 echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) 982 echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)
983 endef 983 endef
984 984
985 include/linux/version.h: $(srctree)/Makefile FORCE 985 include/linux/version.h: $(srctree)/Makefile FORCE
986 $(call filechk,version.h) 986 $(call filechk,version.h)
987 987
988 include/linux/utsrelease.h: include/config/kernel.release FORCE 988 include/linux/utsrelease.h: include/config/kernel.release FORCE
989 $(call filechk,utsrelease.h) 989 $(call filechk,utsrelease.h)
990 990
991 # --------------------------------------------------------------------------- 991 # ---------------------------------------------------------------------------
992 992
993 PHONY += depend dep 993 PHONY += depend dep
994 depend dep: 994 depend dep:
995 @echo '*** Warning: make $@ is unnecessary now.' 995 @echo '*** Warning: make $@ is unnecessary now.'
996 996
997 # --------------------------------------------------------------------------- 997 # ---------------------------------------------------------------------------
998 # Kernel headers 998 # Kernel headers
999 INSTALL_HDR_PATH=$(objtree)/usr 999 INSTALL_HDR_PATH=$(objtree)/usr
1000 export INSTALL_HDR_PATH 1000 export INSTALL_HDR_PATH
1001 1001
1002 HDRFILTER=generic i386 x86_64 1002 HDRFILTER=generic i386 x86_64
1003 HDRARCHES=$(filter-out $(HDRFILTER),$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild))) 1003 HDRARCHES=$(filter-out $(HDRFILTER),$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild)))
1004 1004
1005 PHONY += headers_install_all 1005 PHONY += headers_install_all
1006 headers_install_all: include/linux/version.h scripts_basic FORCE 1006 headers_install_all: include/linux/version.h scripts_basic FORCE
1007 $(Q)$(MAKE) $(build)=scripts scripts/unifdef 1007 $(Q)$(MAKE) $(build)=scripts scripts/unifdef
1008 $(Q)for arch in $(HDRARCHES); do \ 1008 $(Q)for arch in $(HDRARCHES); do \
1009 $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch ;\ 1009 $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch ;\
1010 done 1010 done
1011 1011
1012 PHONY += headers_install 1012 PHONY += headers_install
1013 headers_install: include/linux/version.h scripts_basic FORCE 1013 headers_install: include/linux/version.h scripts_basic FORCE
1014 @if [ ! -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \ 1014 @if [ ! -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \
1015 echo '*** Error: Headers not exportable for this architecture ($(SRCARCH))'; \ 1015 echo '*** Error: Headers not exportable for this architecture ($(SRCARCH))'; \
1016 exit 1 ; fi 1016 exit 1 ; fi
1017 $(Q)$(MAKE) $(build)=scripts scripts/unifdef 1017 $(Q)$(MAKE) $(build)=scripts scripts/unifdef
1018 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include 1018 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include
1019 1019
1020 PHONY += headers_check_all 1020 PHONY += headers_check_all
1021 headers_check_all: headers_install_all 1021 headers_check_all: headers_install_all
1022 $(Q)for arch in $(HDRARCHES); do \ 1022 $(Q)for arch in $(HDRARCHES); do \
1023 $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch HDRCHECK=1 ;\ 1023 $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch HDRCHECK=1 ;\
1024 done 1024 done
1025 1025
1026 PHONY += headers_check 1026 PHONY += headers_check
1027 headers_check: headers_install 1027 headers_check: headers_install
1028 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include HDRCHECK=1 1028 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include HDRCHECK=1
1029 1029
1030 # --------------------------------------------------------------------------- 1030 # ---------------------------------------------------------------------------
1031 # Modules 1031 # Modules
1032 1032
1033 ifdef CONFIG_MODULES 1033 ifdef CONFIG_MODULES
1034 1034
1035 # By default, build modules as well 1035 # By default, build modules as well
1036 1036
1037 all: modules 1037 all: modules
1038 1038
1039 # Build modules 1039 # Build modules
1040 # 1040 #
1041 # A module can be listed more than once in obj-m resulting in 1041 # A module can be listed more than once in obj-m resulting in
1042 # duplicate lines in modules.order files. Those are removed 1042 # duplicate lines in modules.order files. Those are removed
1043 # using awk while concatenating to the final file. 1043 # using awk while concatenating to the final file.
1044 1044
1045 PHONY += modules 1045 PHONY += modules
1046 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) 1046 modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)
1047 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order 1047 $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
1048 @echo ' Building modules, stage 2.'; 1048 @echo ' Building modules, stage 2.';
1049 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1049 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1050 1050
1051 1051
1052 # Target to prepare building external modules 1052 # Target to prepare building external modules
1053 PHONY += modules_prepare 1053 PHONY += modules_prepare
1054 modules_prepare: prepare scripts 1054 modules_prepare: prepare scripts
1055 1055
1056 # Target to install modules 1056 # Target to install modules
1057 PHONY += modules_install 1057 PHONY += modules_install
1058 modules_install: _modinst_ _modinst_post 1058 modules_install: _modinst_ _modinst_post
1059 1059
1060 PHONY += _modinst_ 1060 PHONY += _modinst_
1061 _modinst_: 1061 _modinst_:
1062 @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ 1062 @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \
1063 echo "Warning: you may need to install module-init-tools"; \ 1063 echo "Warning: you may need to install module-init-tools"; \
1064 echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ 1064 echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\
1065 sleep 1; \ 1065 sleep 1; \
1066 fi 1066 fi
1067 @rm -rf $(MODLIB)/kernel 1067 @rm -rf $(MODLIB)/kernel
1068 @rm -f $(MODLIB)/source 1068 @rm -f $(MODLIB)/source
1069 @mkdir -p $(MODLIB)/kernel 1069 @mkdir -p $(MODLIB)/kernel
1070 @ln -s $(srctree) $(MODLIB)/source 1070 @ln -s $(srctree) $(MODLIB)/source
1071 @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ 1071 @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \
1072 rm -f $(MODLIB)/build ; \ 1072 rm -f $(MODLIB)/build ; \
1073 ln -s $(objtree) $(MODLIB)/build ; \ 1073 ln -s $(objtree) $(MODLIB)/build ; \
1074 fi 1074 fi
1075 @cp -f $(objtree)/modules.order $(MODLIB)/ 1075 @cp -f $(objtree)/modules.order $(MODLIB)/
1076 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst 1076 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1077 1077
1078 # This depmod is only for convenience to give the initial 1078 # This depmod is only for convenience to give the initial
1079 # boot a modules.dep even before / is mounted read-write. However the 1079 # boot a modules.dep even before / is mounted read-write. However the
1080 # boot script depmod is the master version. 1080 # boot script depmod is the master version.
1081 PHONY += _modinst_post 1081 PHONY += _modinst_post
1082 _modinst_post: _modinst_ 1082 _modinst_post: _modinst_
1083 $(call cmd,depmod) 1083 $(call cmd,depmod)
1084 1084
1085 else # CONFIG_MODULES 1085 else # CONFIG_MODULES
1086 1086
1087 # Modules not configured 1087 # Modules not configured
1088 # --------------------------------------------------------------------------- 1088 # ---------------------------------------------------------------------------
1089 1089
1090 modules modules_install: FORCE 1090 modules modules_install: FORCE
1091 @echo 1091 @echo
1092 @echo "The present kernel configuration has modules disabled." 1092 @echo "The present kernel configuration has modules disabled."
1093 @echo "Type 'make config' and enable loadable module support." 1093 @echo "Type 'make config' and enable loadable module support."
1094 @echo "Then build a kernel with module support enabled." 1094 @echo "Then build a kernel with module support enabled."
1095 @echo 1095 @echo
1096 @exit 1 1096 @exit 1
1097 1097
1098 endif # CONFIG_MODULES 1098 endif # CONFIG_MODULES
1099 1099
1100 ### 1100 ###
1101 # Cleaning is done on three levels. 1101 # Cleaning is done on three levels.
1102 # make clean Delete most generated files 1102 # make clean Delete most generated files
1103 # Leave enough to build external modules 1103 # Leave enough to build external modules
1104 # make mrproper Delete the current configuration, and all generated files 1104 # make mrproper Delete the current configuration, and all generated files
1105 # make distclean Remove editor backup files, patch leftover files and the like 1105 # make distclean Remove editor backup files, patch leftover files and the like
1106 1106
1107 # Directories & files removed with 'make clean' 1107 # Directories & files removed with 'make clean'
1108 CLEAN_DIRS += $(MODVERDIR) 1108 CLEAN_DIRS += $(MODVERDIR)
1109 CLEAN_FILES += vmlinux System.map \ 1109 CLEAN_FILES += vmlinux System.map \
1110 .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map 1110 .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map
1111 1111
1112 # Directories & files removed with 'make mrproper' 1112 # Directories & files removed with 'make mrproper'
1113 MRPROPER_DIRS += include/config include2 usr/include 1113 MRPROPER_DIRS += include/config include2 usr/include
1114 MRPROPER_FILES += .config .config.old include/asm .version .old_version \ 1114 MRPROPER_FILES += .config .config.old include/asm .version .old_version \
1115 include/linux/autoconf.h include/linux/version.h \ 1115 include/linux/autoconf.h include/linux/version.h \
1116 include/linux/utsrelease.h \ 1116 include/linux/utsrelease.h \
1117 include/linux/bounds.h include/asm*/asm-offsets.h \ 1117 include/linux/bounds.h include/asm*/asm-offsets.h \
1118 Module.symvers tags TAGS cscope* 1118 Module.symvers tags TAGS cscope*
1119 1119
1120 # clean - Delete most, but leave enough to build external modules 1120 # clean - Delete most, but leave enough to build external modules
1121 # 1121 #
1122 clean: rm-dirs := $(CLEAN_DIRS) 1122 clean: rm-dirs := $(CLEAN_DIRS)
1123 clean: rm-files := $(CLEAN_FILES) 1123 clean: rm-files := $(CLEAN_FILES)
1124 clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs)) 1124 clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs))
1125 1125
1126 PHONY += $(clean-dirs) clean archclean 1126 PHONY += $(clean-dirs) clean archclean
1127 $(clean-dirs): 1127 $(clean-dirs):
1128 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1128 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1129 1129
1130 clean: archclean $(clean-dirs) 1130 clean: archclean $(clean-dirs)
1131 $(call cmd,rmdirs) 1131 $(call cmd,rmdirs)
1132 $(call cmd,rmfiles) 1132 $(call cmd,rmfiles)
1133 @find . $(RCS_FIND_IGNORE) \ 1133 @find . $(RCS_FIND_IGNORE) \
1134 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1134 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1135 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ 1135 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
1136 -o -name '*.symtypes' -o -name 'modules.order' \) \ 1136 -o -name '*.symtypes' -o -name 'modules.order' \) \
1137 -type f -print | xargs rm -f 1137 -type f -print | xargs rm -f
1138 1138
1139 # mrproper - Delete all generated files, including .config 1139 # mrproper - Delete all generated files, including .config
1140 # 1140 #
1141 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) 1141 mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))
1142 mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) 1142 mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
1143 mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) 1143 mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)
1144 1144
1145 PHONY += $(mrproper-dirs) mrproper archmrproper 1145 PHONY += $(mrproper-dirs) mrproper archmrproper
1146 $(mrproper-dirs): 1146 $(mrproper-dirs):
1147 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) 1147 $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
1148 1148
1149 mrproper: clean archmrproper $(mrproper-dirs) 1149 mrproper: clean archmrproper $(mrproper-dirs)
1150 $(call cmd,rmdirs) 1150 $(call cmd,rmdirs)
1151 $(call cmd,rmfiles) 1151 $(call cmd,rmfiles)
1152 1152
1153 # distclean 1153 # distclean
1154 # 1154 #
1155 PHONY += distclean 1155 PHONY += distclean
1156 1156
1157 distclean: mrproper 1157 distclean: mrproper
1158 @find $(srctree) $(RCS_FIND_IGNORE) \ 1158 @find $(srctree) $(RCS_FIND_IGNORE) \
1159 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ 1159 \( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1160 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ 1160 -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
1161 -o -name '.*.rej' -o -size 0 \ 1161 -o -name '.*.rej' -o -size 0 \
1162 -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ 1162 -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
1163 -type f -print | xargs rm -f 1163 -type f -print | xargs rm -f
1164 1164
1165 1165
1166 # Packaging of the kernel to various formats 1166 # Packaging of the kernel to various formats
1167 # --------------------------------------------------------------------------- 1167 # ---------------------------------------------------------------------------
1168 # rpm target kept for backward compatibility 1168 # rpm target kept for backward compatibility
1169 package-dir := $(srctree)/scripts/package 1169 package-dir := $(srctree)/scripts/package
1170 1170
1171 %pkg: include/config/kernel.release FORCE 1171 %pkg: include/config/kernel.release FORCE
1172 $(Q)$(MAKE) $(build)=$(package-dir) $@ 1172 $(Q)$(MAKE) $(build)=$(package-dir) $@
1173 rpm: include/config/kernel.release FORCE 1173 rpm: include/config/kernel.release FORCE
1174 $(Q)$(MAKE) $(build)=$(package-dir) $@ 1174 $(Q)$(MAKE) $(build)=$(package-dir) $@
1175 1175
1176 1176
1177 # Brief documentation of the typical targets used 1177 # Brief documentation of the typical targets used
1178 # --------------------------------------------------------------------------- 1178 # ---------------------------------------------------------------------------
1179 1179
1180 boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) 1180 boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)
1181 boards := $(notdir $(boards)) 1181 boards := $(notdir $(boards))
1182 board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) 1182 board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))
1183 board-dirs := $(sort $(notdir $(board-dirs:/=))) 1183 board-dirs := $(sort $(notdir $(board-dirs:/=)))
1184 1184
1185 help: 1185 help:
1186 @echo 'Cleaning targets:' 1186 @echo 'Cleaning targets:'
1187 @echo ' clean - Remove most generated files but keep the config and' 1187 @echo ' clean - Remove most generated files but keep the config and'
1188 @echo ' enough build support to build external modules' 1188 @echo ' enough build support to build external modules'
1189 @echo ' mrproper - Remove all generated files + config + various backup files' 1189 @echo ' mrproper - Remove all generated files + config + various backup files'
1190 @echo ' distclean - mrproper + remove editor backup and patch files' 1190 @echo ' distclean - mrproper + remove editor backup and patch files'
1191 @echo '' 1191 @echo ''
1192 @echo 'Configuration targets:' 1192 @echo 'Configuration targets:'
1193 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help 1193 @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
1194 @echo '' 1194 @echo ''
1195 @echo 'Other generic targets:' 1195 @echo 'Other generic targets:'
1196 @echo ' all - Build all targets marked with [*]' 1196 @echo ' all - Build all targets marked with [*]'
1197 @echo '* vmlinux - Build the bare kernel' 1197 @echo '* vmlinux - Build the bare kernel'
1198 @echo '* modules - Build all modules' 1198 @echo '* modules - Build all modules'
1199 @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' 1199 @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
1200 @echo ' dir/ - Build all files in dir and below' 1200 @echo ' dir/ - Build all files in dir and below'
1201 @echo ' dir/file.[ois] - Build specified target only' 1201 @echo ' dir/file.[ois] - Build specified target only'
1202 @echo ' dir/file.ko - Build module including final link' 1202 @echo ' dir/file.ko - Build module including final link'
1203 @echo ' prepare - Set up for building external modules' 1203 @echo ' prepare - Set up for building external modules'
1204 @echo ' tags/TAGS - Generate tags file for editors' 1204 @echo ' tags/TAGS - Generate tags file for editors'
1205 @echo ' cscope - Generate cscope index' 1205 @echo ' cscope - Generate cscope index'
1206 @echo ' kernelrelease - Output the release version string' 1206 @echo ' kernelrelease - Output the release version string'
1207 @echo ' kernelversion - Output the version stored in Makefile' 1207 @echo ' kernelversion - Output the version stored in Makefile'
1208 @if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \ 1208 @if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \
1209 echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ 1209 echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
1210 echo ' (default: $(INSTALL_HDR_PATH))'; \ 1210 echo ' (default: $(INSTALL_HDR_PATH))'; \
1211 fi 1211 fi
1212 @echo '' 1212 @echo ''
1213 @echo 'Static analysers' 1213 @echo 'Static analysers'
1214 @echo ' checkstack - Generate a list of stack hogs' 1214 @echo ' checkstack - Generate a list of stack hogs'
1215 @echo ' namespacecheck - Name space analysis on compiled kernel' 1215 @echo ' namespacecheck - Name space analysis on compiled kernel'
1216 @echo ' versioncheck - Sanity check on version.h usage' 1216 @echo ' versioncheck - Sanity check on version.h usage'
1217 @echo ' includecheck - Check for duplicate included header files' 1217 @echo ' includecheck - Check for duplicate included header files'
1218 @echo ' export_report - List the usages of all exported symbols' 1218 @echo ' export_report - List the usages of all exported symbols'
1219 @if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \ 1219 @if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \
1220 echo ' headers_check - Sanity check on exported headers'; \ 1220 echo ' headers_check - Sanity check on exported headers'; \
1221 fi 1221 fi
1222 @echo '' 1222 @echo ''
1223 @echo 'Kernel packaging:' 1223 @echo 'Kernel packaging:'
1224 @$(MAKE) $(build)=$(package-dir) help 1224 @$(MAKE) $(build)=$(package-dir) help
1225 @echo '' 1225 @echo ''
1226 @echo 'Documentation targets:' 1226 @echo 'Documentation targets:'
1227 @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp 1227 @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
1228 @echo '' 1228 @echo ''
1229 @echo 'Architecture specific targets ($(SRCARCH)):' 1229 @echo 'Architecture specific targets ($(SRCARCH)):'
1230 @$(if $(archhelp),$(archhelp),\ 1230 @$(if $(archhelp),$(archhelp),\
1231 echo ' No architecture specific help defined for $(SRCARCH)') 1231 echo ' No architecture specific help defined for $(SRCARCH)')
1232 @echo '' 1232 @echo ''
1233 @$(if $(boards), \ 1233 @$(if $(boards), \
1234 $(foreach b, $(boards), \ 1234 $(foreach b, $(boards), \
1235 printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ 1235 printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \
1236 echo '') 1236 echo '')
1237 @$(if $(board-dirs), \ 1237 @$(if $(board-dirs), \
1238 $(foreach b, $(board-dirs), \ 1238 $(foreach b, $(board-dirs), \
1239 printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ 1239 printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \
1240 printf " %-16s - Show all of the above\\n" help-boards; \ 1240 printf " %-16s - Show all of the above\\n" help-boards; \
1241 echo '') 1241 echo '')
1242 1242
1243 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' 1243 @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
1244 @echo ' make V=2 [targets] 2 => give reason for rebuild of target' 1244 @echo ' make V=2 [targets] 2 => give reason for rebuild of target'
1245 @echo ' make O=dir [targets] Locate all output files in "dir", including .config' 1245 @echo ' make O=dir [targets] Locate all output files in "dir", including .config'
1246 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' 1246 @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'
1247 @echo ' make C=2 [targets] Force check of all c source with $$CHECK' 1247 @echo ' make C=2 [targets] Force check of all c source with $$CHECK'
1248 @echo '' 1248 @echo ''
1249 @echo 'Execute "make" or "make all" to build all targets marked with [*] ' 1249 @echo 'Execute "make" or "make all" to build all targets marked with [*] '
1250 @echo 'For further info see the ./README file' 1250 @echo 'For further info see the ./README file'
1251 1251
1252 1252
1253 help-board-dirs := $(addprefix help-,$(board-dirs)) 1253 help-board-dirs := $(addprefix help-,$(board-dirs))
1254 1254
1255 help-boards: $(help-board-dirs) 1255 help-boards: $(help-board-dirs)
1256 1256
1257 boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) 1257 boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))
1258 1258
1259 $(help-board-dirs): help-%: 1259 $(help-board-dirs): help-%:
1260 @echo 'Architecture specific targets ($(SRCARCH) $*):' 1260 @echo 'Architecture specific targets ($(SRCARCH) $*):'
1261 @$(if $(boards-per-dir), \ 1261 @$(if $(boards-per-dir), \
1262 $(foreach b, $(boards-per-dir), \ 1262 $(foreach b, $(boards-per-dir), \
1263 printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ 1263 printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \
1264 echo '') 1264 echo '')
1265 1265
1266 1266
1267 # Documentation targets 1267 # Documentation targets
1268 # --------------------------------------------------------------------------- 1268 # ---------------------------------------------------------------------------
1269 %docs: scripts_basic FORCE 1269 %docs: scripts_basic FORCE
1270 $(Q)$(MAKE) $(build)=Documentation/DocBook $@ 1270 $(Q)$(MAKE) $(build)=Documentation/DocBook $@
1271 1271
1272 else # KBUILD_EXTMOD 1272 else # KBUILD_EXTMOD
1273 1273
1274 ### 1274 ###
1275 # External module support. 1275 # External module support.
1276 # When building external modules the kernel used as basis is considered 1276 # When building external modules the kernel used as basis is considered
1277 # read-only, and no consistency checks are made and the make 1277 # read-only, and no consistency checks are made and the make
1278 # system is not used on the basis kernel. If updates are required 1278 # system is not used on the basis kernel. If updates are required
1279 # in the basis kernel ordinary make commands (without M=...) must 1279 # in the basis kernel ordinary make commands (without M=...) must
1280 # be used. 1280 # be used.
1281 # 1281 #
1282 # The following are the only valid targets when building external 1282 # The following are the only valid targets when building external
1283 # modules. 1283 # modules.
1284 # make M=dir clean Delete all automatically generated files 1284 # make M=dir clean Delete all automatically generated files
1285 # make M=dir modules Make all modules in specified dir 1285 # make M=dir modules Make all modules in specified dir
1286 # make M=dir Same as 'make M=dir modules' 1286 # make M=dir Same as 'make M=dir modules'
1287 # make M=dir modules_install 1287 # make M=dir modules_install
1288 # Install the modules built in the module directory 1288 # Install the modules built in the module directory
1289 # Assumes install directory is already created 1289 # Assumes install directory is already created
1290 1290
1291 # We are always building modules 1291 # We are always building modules
1292 KBUILD_MODULES := 1 1292 KBUILD_MODULES := 1
1293 PHONY += crmodverdir 1293 PHONY += crmodverdir
1294 crmodverdir: 1294 crmodverdir:
1295 $(cmd_crmodverdir) 1295 $(cmd_crmodverdir)
1296 1296
1297 PHONY += $(objtree)/Module.symvers 1297 PHONY += $(objtree)/Module.symvers
1298 $(objtree)/Module.symvers: 1298 $(objtree)/Module.symvers:
1299 @test -e $(objtree)/Module.symvers || ( \ 1299 @test -e $(objtree)/Module.symvers || ( \
1300 echo; \ 1300 echo; \
1301 echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ 1301 echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \
1302 echo " is missing; modules will have no dependencies and modversions."; \ 1302 echo " is missing; modules will have no dependencies and modversions."; \
1303 echo ) 1303 echo )
1304 1304
1305 module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) 1305 module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
1306 PHONY += $(module-dirs) modules 1306 PHONY += $(module-dirs) modules
1307 $(module-dirs): crmodverdir $(objtree)/Module.symvers 1307 $(module-dirs): crmodverdir $(objtree)/Module.symvers
1308 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) 1308 $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
1309 1309
1310 modules: $(module-dirs) 1310 modules: $(module-dirs)
1311 @echo ' Building modules, stage 2.'; 1311 @echo ' Building modules, stage 2.';
1312 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1312 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1313 1313
1314 PHONY += modules_install 1314 PHONY += modules_install
1315 modules_install: _emodinst_ _emodinst_post 1315 modules_install: _emodinst_ _emodinst_post
1316 1316
1317 install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) 1317 install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
1318 PHONY += _emodinst_ 1318 PHONY += _emodinst_
1319 _emodinst_: 1319 _emodinst_:
1320 $(Q)mkdir -p $(MODLIB)/$(install-dir) 1320 $(Q)mkdir -p $(MODLIB)/$(install-dir)
1321 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst 1321 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1322 1322
1323 PHONY += _emodinst_post 1323 PHONY += _emodinst_post
1324 _emodinst_post: _emodinst_ 1324 _emodinst_post: _emodinst_
1325 $(call cmd,depmod) 1325 $(call cmd,depmod)
1326 1326
1327 clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) 1327 clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
1328 1328
1329 PHONY += $(clean-dirs) clean 1329 PHONY += $(clean-dirs) clean
1330 $(clean-dirs): 1330 $(clean-dirs):
1331 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) 1331 $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
1332 1332
1333 clean: rm-dirs := $(MODVERDIR) 1333 clean: rm-dirs := $(MODVERDIR)
1334 clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers 1334 clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers
1335 clean: $(clean-dirs) 1335 clean: $(clean-dirs)
1336 $(call cmd,rmdirs) 1336 $(call cmd,rmdirs)
1337 $(call cmd,rmfiles) 1337 $(call cmd,rmfiles)
1338 @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ 1338 @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \
1339 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ 1339 \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1340 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ 1340 -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \
1341 -type f -print | xargs rm -f 1341 -type f -print | xargs rm -f
1342 1342
1343 help: 1343 help:
1344 @echo ' Building external modules.' 1344 @echo ' Building external modules.'
1345 @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' 1345 @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'
1346 @echo '' 1346 @echo ''
1347 @echo ' modules - default target, build the module(s)' 1347 @echo ' modules - default target, build the module(s)'
1348 @echo ' modules_install - install the module' 1348 @echo ' modules_install - install the module'
1349 @echo ' clean - remove generated files in module directory only' 1349 @echo ' clean - remove generated files in module directory only'
1350 @echo '' 1350 @echo ''
1351 1351
1352 # Dummies... 1352 # Dummies...
1353 PHONY += prepare scripts 1353 PHONY += prepare scripts
1354 prepare: ; 1354 prepare: ;
1355 scripts: ; 1355 scripts: ;
1356 endif # KBUILD_EXTMOD 1356 endif # KBUILD_EXTMOD
1357 1357
1358 # Generate tags for editors 1358 # Generate tags for editors
1359 # --------------------------------------------------------------------------- 1359 # ---------------------------------------------------------------------------
1360 1360
1361 #We want __srctree to totally vanish out when KBUILD_OUTPUT is not set 1361 #We want __srctree to totally vanish out when KBUILD_OUTPUT is not set
1362 #(which is the most common case IMHO) to avoid unneeded clutter in the big tags file. 1362 #(which is the most common case IMHO) to avoid unneeded clutter in the big tags file.
1363 #Adding $(srctree) adds about 20M on i386 to the size of the output file! 1363 #Adding $(srctree) adds about 20M on i386 to the size of the output file!
1364 1364
1365 ifeq ($(src),$(obj)) 1365 ifeq ($(src),$(obj))
1366 __srctree = 1366 __srctree =
1367 else 1367 else
1368 __srctree = $(srctree)/ 1368 __srctree = $(srctree)/
1369 endif 1369 endif
1370 1370
1371 ifeq ($(ALLSOURCE_ARCHS),) 1371 ifeq ($(ALLSOURCE_ARCHS),)
1372 ifeq ($(ARCH),um) 1372 ifeq ($(ARCH),um)
1373 ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH) 1373 ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH)
1374 else 1374 else
1375 ALLINCLUDE_ARCHS := $(SRCARCH) 1375 ALLINCLUDE_ARCHS := $(SRCARCH)
1376 endif 1376 endif
1377 else 1377 else
1378 #Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour. 1378 #Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour.
1379 ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS) 1379 ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
1380 endif 1380 endif
1381 1381
1382 ALLSOURCE_ARCHS := $(SRCARCH) 1382 ALLSOURCE_ARCHS := $(SRCARCH)
1383 1383
1384 define find-sources 1384 define find-sources
1385 ( for arch in $(ALLSOURCE_ARCHS) ; do \ 1385 ( for arch in $(ALLSOURCE_ARCHS) ; do \
1386 find $(__srctree)arch/$${arch} $(RCS_FIND_IGNORE) \ 1386 find $(__srctree)arch/$${arch} $(RCS_FIND_IGNORE) \
1387 -name $1 -print; \ 1387 -name $1 -print; \
1388 done ; \ 1388 done ; \
1389 find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \ 1389 find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \
1390 -name $1 -print; \ 1390 -name $1 -print; \
1391 find $(__srctree)include $(RCS_FIND_IGNORE) \ 1391 find $(__srctree)include $(RCS_FIND_IGNORE) \
1392 \( -name config -o -name 'asm-*' \) -prune \ 1392 \( -name config -o -name 'asm-*' \) -prune \
1393 -o -name $1 -print; \ 1393 -o -name $1 -print; \
1394 for arch in $(ALLINCLUDE_ARCHS) ; do \ 1394 for arch in $(ALLINCLUDE_ARCHS) ; do \
1395 find $(__srctree)include/asm-$${arch} $(RCS_FIND_IGNORE) \ 1395 find $(__srctree)include/asm-$${arch} $(RCS_FIND_IGNORE) \
1396 -name $1 -print; \ 1396 -name $1 -print; \
1397 done ; \ 1397 done ; \
1398 find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \ 1398 find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \
1399 -name $1 -print; \ 1399 -name $1 -print; \
1400 find $(__srctree) $(RCS_FIND_IGNORE) \ 1400 find $(__srctree) $(RCS_FIND_IGNORE) \
1401 \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \ 1401 \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
1402 -name $1 -print; \ 1402 -name $1 -print; \
1403 ) 1403 )
1404 endef 1404 endef
1405 1405
1406 define all-sources 1406 define all-sources
1407 $(call find-sources,'*.[chS]') 1407 $(call find-sources,'*.[chS]')
1408 endef 1408 endef
1409 define all-kconfigs 1409 define all-kconfigs
1410 $(call find-sources,'Kconfig*') 1410 $(call find-sources,'Kconfig*')
1411 endef 1411 endef
1412 define all-defconfigs 1412 define all-defconfigs
1413 $(call find-sources,'defconfig') 1413 $(call find-sources,'defconfig')
1414 endef 1414 endef
1415 1415
1416 define xtags 1416 define xtags
1417 if $1 --version 2>&1 | grep -iq exuberant; then \ 1417 if $1 --version 2>&1 | grep -iq exuberant; then \
1418 $(all-sources) | xargs $1 -a \ 1418 $(all-sources) | xargs $1 -a \
1419 -I __initdata,__exitdata,__acquires,__releases \ 1419 -I __initdata,__exitdata,__acquires,__releases \
1420 -I __read_mostly,____cacheline_aligned,____cacheline_aligned_in_smp,____cacheline_internodealigned_in_smp \ 1420 -I __read_mostly,____cacheline_aligned,____cacheline_aligned_in_smp,____cacheline_internodealigned_in_smp \
1421 -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \ 1421 -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
1422 --extra=+f --c-kinds=+px \ 1422 --extra=+f --c-kinds=+px \
1423 --regex-asm='/^ENTRY\(([^)]*)\).*/\1/'; \ 1423 --regex-asm='/^ENTRY\(([^)]*)\).*/\1/'; \
1424 $(all-kconfigs) | xargs $1 -a \ 1424 $(all-kconfigs) | xargs $1 -a \
1425 --langdef=kconfig \ 1425 --langdef=kconfig \
1426 --language-force=kconfig \ 1426 --language-force=kconfig \
1427 --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'; \ 1427 --regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'; \
1428 $(all-defconfigs) | xargs -r $1 -a \ 1428 $(all-defconfigs) | xargs -r $1 -a \
1429 --langdef=dotconfig \ 1429 --langdef=dotconfig \
1430 --language-force=dotconfig \ 1430 --language-force=dotconfig \
1431 --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'; \ 1431 --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'; \
1432 elif $1 --version 2>&1 | grep -iq emacs; then \ 1432 elif $1 --version 2>&1 | grep -iq emacs; then \
1433 $(all-sources) | xargs $1 -a; \ 1433 $(all-sources) | xargs $1 -a; \
1434 $(all-kconfigs) | xargs $1 -a \ 1434 $(all-kconfigs) | xargs $1 -a \
1435 --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'; \ 1435 --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'; \
1436 $(all-defconfigs) | xargs -r $1 -a \ 1436 $(all-defconfigs) | xargs -r $1 -a \
1437 --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \ 1437 --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \
1438 else \ 1438 else \
1439 $(all-sources) | xargs $1 -a; \ 1439 $(all-sources) | xargs $1 -a; \
1440 fi 1440 fi
1441 endef 1441 endef
1442 1442
1443 quiet_cmd_cscope-file = FILELST cscope.files 1443 quiet_cmd_cscope-file = FILELST cscope.files
1444 cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files 1444 cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files
1445 1445
1446 quiet_cmd_cscope = MAKE cscope.out 1446 quiet_cmd_cscope = MAKE cscope.out
1447 cmd_cscope = cscope -b 1447 cmd_cscope = cscope -b
1448 1448
1449 cscope: FORCE 1449 cscope: FORCE
1450 $(call cmd,cscope-file) 1450 $(call cmd,cscope-file)
1451 $(call cmd,cscope) 1451 $(call cmd,cscope)
1452 1452
1453 quiet_cmd_TAGS = MAKE $@ 1453 quiet_cmd_TAGS = MAKE $@
1454 define cmd_TAGS 1454 define cmd_TAGS
1455 rm -f $@; \ 1455 rm -f $@; \
1456 $(call xtags,etags) 1456 $(call xtags,etags)
1457 endef 1457 endef
1458 1458
1459 TAGS: FORCE 1459 TAGS: FORCE
1460 $(call cmd,TAGS) 1460 $(call cmd,TAGS)
1461 1461
1462 quiet_cmd_tags = MAKE $@ 1462 quiet_cmd_tags = MAKE $@
1463 define cmd_tags 1463 define cmd_tags
1464 rm -f $@; \ 1464 rm -f $@; \
1465 $(call xtags,ctags) 1465 $(call xtags,ctags)
1466 endef 1466 endef
1467 1467
1468 tags: FORCE 1468 tags: FORCE
1469 $(call cmd,tags) 1469 $(call cmd,tags)
1470 1470
1471 1471
1472 # Scripts to check various things for consistency 1472 # Scripts to check various things for consistency
1473 # --------------------------------------------------------------------------- 1473 # ---------------------------------------------------------------------------
1474 1474
1475 includecheck: 1475 includecheck:
1476 find * $(RCS_FIND_IGNORE) \ 1476 find * $(RCS_FIND_IGNORE) \
1477 -name '*.[hcS]' -type f -print | sort \ 1477 -name '*.[hcS]' -type f -print | sort \
1478 | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl 1478 | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
1479 1479
1480 versioncheck: 1480 versioncheck:
1481 find * $(RCS_FIND_IGNORE) \ 1481 find * $(RCS_FIND_IGNORE) \
1482 -name '*.[hcS]' -type f -print | sort \ 1482 -name '*.[hcS]' -type f -print | sort \
1483 | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl 1483 | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
1484 1484
1485 namespacecheck: 1485 namespacecheck:
1486 $(PERL) $(srctree)/scripts/namespace.pl 1486 $(PERL) $(srctree)/scripts/namespace.pl
1487 1487
1488 export_report: 1488 export_report:
1489 $(PERL) $(srctree)/scripts/export_report.pl 1489 $(PERL) $(srctree)/scripts/export_report.pl
1490 1490
1491 endif #ifeq ($(config-targets),1) 1491 endif #ifeq ($(config-targets),1)
1492 endif #ifeq ($(mixed-targets),1) 1492 endif #ifeq ($(mixed-targets),1)
1493 1493
1494 PHONY += checkstack kernelrelease kernelversion 1494 PHONY += checkstack kernelrelease kernelversion
1495 1495
1496 # UML needs a little special treatment here. It wants to use the host 1496 # UML needs a little special treatment here. It wants to use the host
1497 # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone 1497 # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone
1498 # else wants $(ARCH), including people doing cross-builds, which means 1498 # else wants $(ARCH), including people doing cross-builds, which means
1499 # that $(SUBARCH) doesn't work here. 1499 # that $(SUBARCH) doesn't work here.
1500 ifeq ($(ARCH), um) 1500 ifeq ($(ARCH), um)
1501 CHECKSTACK_ARCH := $(SUBARCH) 1501 CHECKSTACK_ARCH := $(SUBARCH)
1502 else 1502 else
1503 CHECKSTACK_ARCH := $(ARCH) 1503 CHECKSTACK_ARCH := $(ARCH)
1504 endif 1504 endif
1505 checkstack: 1505 checkstack:
1506 $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ 1506 $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
1507 $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) 1507 $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
1508 1508
1509 kernelrelease: 1509 kernelrelease:
1510 $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ 1510 $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \
1511 $(error kernelrelease not valid - run 'make prepare' to update it)) 1511 $(error kernelrelease not valid - run 'make prepare' to update it))
1512 kernelversion: 1512 kernelversion:
1513 @echo $(KERNELVERSION) 1513 @echo $(KERNELVERSION)
1514 1514
1515 # Single targets 1515 # Single targets
1516 # --------------------------------------------------------------------------- 1516 # ---------------------------------------------------------------------------
1517 # Single targets are compatible with: 1517 # Single targets are compatible with:
1518 # - build with mixed source and output 1518 # - build with mixed source and output
1519 # - build with separate output dir 'make O=...' 1519 # - build with separate output dir 'make O=...'
1520 # - external modules 1520 # - external modules
1521 # 1521 #
1522 # target-dir => where to store outputfile 1522 # target-dir => where to store outputfile
1523 # build-dir => directory in kernel source tree to use 1523 # build-dir => directory in kernel source tree to use
1524 1524
1525 ifeq ($(KBUILD_EXTMOD),) 1525 ifeq ($(KBUILD_EXTMOD),)
1526 build-dir = $(patsubst %/,%,$(dir $@)) 1526 build-dir = $(patsubst %/,%,$(dir $@))
1527 target-dir = $(dir $@) 1527 target-dir = $(dir $@)
1528 else 1528 else
1529 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) 1529 zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
1530 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) 1530 build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
1531 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) 1531 target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
1532 endif 1532 endif
1533 1533
1534 %.s: %.c prepare scripts FORCE 1534 %.s: %.c prepare scripts FORCE
1535 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1535 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1536 %.i: %.c prepare scripts FORCE 1536 %.i: %.c prepare scripts FORCE
1537 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1537 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1538 %.o: %.c prepare scripts FORCE 1538 %.o: %.c prepare scripts FORCE
1539 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1539 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1540 %.lst: %.c prepare scripts FORCE 1540 %.lst: %.c prepare scripts FORCE
1541 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1541 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1542 %.s: %.S prepare scripts FORCE 1542 %.s: %.S prepare scripts FORCE
1543 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1543 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1544 %.o: %.S prepare scripts FORCE 1544 %.o: %.S prepare scripts FORCE
1545 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1545 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1546 %.symtypes: %.c prepare scripts FORCE 1546 %.symtypes: %.c prepare scripts FORCE
1547 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) 1547 $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
1548 1548
1549 # Modules 1549 # Modules
1550 / %/: prepare scripts FORCE 1550 / %/: prepare scripts FORCE
1551 $(cmd_crmodverdir) 1551 $(cmd_crmodverdir)
1552 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1552 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1553 $(build)=$(build-dir) 1553 $(build)=$(build-dir)
1554 %.ko: prepare scripts FORCE 1554 %.ko: prepare scripts FORCE
1555 $(cmd_crmodverdir) 1555 $(cmd_crmodverdir)
1556 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ 1556 $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
1557 $(build)=$(build-dir) $(@:.ko=.o) 1557 $(build)=$(build-dir) $(@:.ko=.o)
1558 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost 1558 $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1559 1559
1560 # FIXME Should go into a make.lib or something 1560 # FIXME Should go into a make.lib or something
1561 # =========================================================================== 1561 # ===========================================================================
1562 1562
1563 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) 1563 quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs)))
1564 cmd_rmdirs = rm -rf $(rm-dirs) 1564 cmd_rmdirs = rm -rf $(rm-dirs)
1565 1565
1566 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) 1566 quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
1567 cmd_rmfiles = rm -f $(rm-files) 1567 cmd_rmfiles = rm -f $(rm-files)
1568 1568
1569 # Run depmod only if we have System.map and depmod is executable 1569 # Run depmod only if we have System.map and depmod is executable
1570 quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) 1570 quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)
1571 cmd_depmod = \ 1571 cmd_depmod = \
1572 if [ -r System.map -a -x $(DEPMOD) ]; then \ 1572 if [ -r System.map -a -x $(DEPMOD) ]; then \
1573 $(DEPMOD) -ae -F System.map \ 1573 $(DEPMOD) -ae -F System.map \
1574 $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) -r) \ 1574 $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) -r) \
1575 $(KERNELRELEASE); \ 1575 $(KERNELRELEASE); \
1576 fi 1576 fi
1577 1577
1578 # Create temporary dir for module support files 1578 # Create temporary dir for module support files
1579 # clean it up only when building all modules 1579 # clean it up only when building all modules
1580 cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ 1580 cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
1581 $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) 1581 $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
1582 1582
1583 a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ 1583 a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \
1584 $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \ 1584 $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
1585 $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) 1585 $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
1586 1586
1587 quiet_cmd_as_o_S = AS $@ 1587 quiet_cmd_as_o_S = AS $@
1588 cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< 1588 cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $<
1589 1589
1590 # read all saved command lines 1590 # read all saved command lines
1591 1591
1592 targets := $(wildcard $(sort $(targets))) 1592 targets := $(wildcard $(sort $(targets)))
1593 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) 1593 cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
1594 1594
1595 ifneq ($(cmd_files),) 1595 ifneq ($(cmd_files),)
1596 $(cmd_files): ; # Do not try to update included dependency files 1596 $(cmd_files): ; # Do not try to update included dependency files
1597 include $(cmd_files) 1597 include $(cmd_files)
1598 endif 1598 endif
1599 1599
1600 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir 1600 # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
1601 # Usage: 1601 # Usage:
1602 # $(Q)$(MAKE) $(clean)=dir 1602 # $(Q)$(MAKE) $(clean)=dir
1603 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj 1603 clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
1604 1604
1605 endif # skip-makefile 1605 endif # skip-makefile
1606 1606
1607 PHONY += FORCE 1607 PHONY += FORCE
1608 FORCE: 1608 FORCE:
1609 1609
1610 # Declare the contents of the .PHONY variable as phony. We keep that 1610 # Declare the contents of the .PHONY variable as phony. We keep that
1611 # information in a variable se we can use it in if_changed and friends. 1611 # information in a variable se we can use it in if_changed and friends.
1612 .PHONY: $(PHONY) 1612 .PHONY: $(PHONY)
1613 1613