Blame view

Makefile 54.4 KB
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1
2
  VERSION = 2
  PATCHLEVEL = 6
2ddcca36c   Linus Torvalds   Linux 2.6.26-rc1
3
  SUBLEVEL = 26
bce7f793d   Linus Torvalds   Linux 2.6.26
4
  EXTRAVERSION =
5dd34572a   Linus Torvalds   Linux 2.6.26-rc6
5
  NAME = Rotary Wombat
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
6
7
8
9
10
11
  
  # *DOCUMENTATION*
  # To see a list of typical targets execute "make help"
  # More info can be located in ./README
  # Comments in this file are targeted only to the developer, do not
  # expect to learn how to build the kernel reading this file.
15964864c   Oleg Verych   [PATCH] kbuild: f...
12
13
  # Do not:
  # o  use make's built-in rules and variables
d384e35a2   Linus Nilsson   Makefile: Change ...
14
  #    (this increases performance and avoids hard-to-debug behaviour);
15964864c   Oleg Verych   [PATCH] kbuild: f...
15
16
  # o  print "Entering directory ...";
  MAKEFLAGS += -rR --no-print-directory
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
  
  # We are using a recursive build, so we need to do a little thinking
  # to get the ordering right.
  #
  # Most importantly: sub-Makefiles should only ever modify files in
  # their own directory. If in some directory we have a dependency on
  # a file in another dir (which doesn't happen often, but it's often
  # unavoidable when linking the built-in.o targets which finally
  # turn into vmlinux), we will call a sub make in that other dir, and
  # after that we are sure that everything which is in that other dir
  # is now up to date.
  #
  # The only cases where we need to modify files which have global
  # effects are thus separated out and done before the recursive
  # descending is started. They are now explicitly listed as the
  # prepare rule.
  
  # To put more focus on warnings, be less verbose as default
  # Use 'make V=1' to see the full commands
  
  ifdef V
    ifeq ("$(origin V)", "command line")
      KBUILD_VERBOSE = $(V)
    endif
  endif
  ifndef KBUILD_VERBOSE
    KBUILD_VERBOSE = 0
  endif
1c7bafe72   Robert P. J. Day   kbuild: clarify "...
45
46
47
48
49
50
51
52
53
  # Call a source code checker (by default, "sparse") as part of the
  # C compilation.
  #
  # Use 'make C=1' to enable checking of only re-compiled files.
  # Use 'make C=2' to enable checking of *all* source files, regardless
  # of whether they are re-compiled or not.
  #
  # See the file "Documentation/sparse.txt" for more details, including
  # where to get the "sparse" utility.
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
  
  ifdef C
    ifeq ("$(origin C)", "command line")
      KBUILD_CHECKSRC = $(C)
    endif
  endif
  ifndef KBUILD_CHECKSRC
    KBUILD_CHECKSRC = 0
  endif
  
  # Use make M=dir to specify directory of external module to build
  # Old syntax make ... SUBDIRS=$PWD is still supported
  # Setting the environment variable KBUILD_EXTMOD take precedence
  ifdef SUBDIRS
    KBUILD_EXTMOD ?= $(SUBDIRS)
  endif
  ifdef M
    ifeq ("$(origin M)", "command line")
      KBUILD_EXTMOD := $(M)
    endif
  endif
  
  
  # kbuild supports saving output files in a separate directory.
  # To locate output files in a separate directory two syntaxes are supported.
  # In both cases the working directory must be the root of the kernel src.
  # 1) O=
  # Use "make O=dir/to/store/output/files/"
070b98bfd   Sam Ravnborg   kbuild: trivial f...
82
  #
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
  # 2) Set KBUILD_OUTPUT
  # Set the environment variable KBUILD_OUTPUT to point to the directory
  # where the output files shall be placed.
  # export KBUILD_OUTPUT=dir/to/store/output/files/
  # make
  #
  # The O= assignment takes precedence over the KBUILD_OUTPUT environment
  # variable.
  
  
  # KBUILD_SRC is set on invocation of make in OBJ directory
  # KBUILD_SRC is not intended to be used by the regular user (for now)
  ifeq ($(KBUILD_SRC),)
  
  # OK, Make called in directory where kernel src resides
  # Do we want to locate output files in a separate directory?
  ifdef O
    ifeq ("$(origin O)", "command line")
      KBUILD_OUTPUT := $(O)
    endif
  endif
  
  # That's our default target when none is given on the command line
4f1933620   Paul Smith   kbuild: change kb...
106
  PHONY := _all
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
107
  _all:
1cacc9ab8   Sam Ravnborg   kbuild: fix build...
108
109
  # Cancel implicit rules on top Makefile
  $(CURDIR)/Makefile Makefile: ;
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
110
111
112
113
114
115
116
  ifneq ($(KBUILD_OUTPUT),)
  # Invoke a second make in the output directory, passing relevant variables
  # check that the output directory actually exists
  saved-output := $(KBUILD_OUTPUT)
  KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd)
  $(if $(KBUILD_OUTPUT),, \
       $(error output directory "$(saved-output)" does not exist))
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
117

0b35786d7   Milton Miller   kbuild: call make...
118
  PHONY += $(MAKECMDGOALS) sub-make
1cacc9ab8   Sam Ravnborg   kbuild: fix build...
119
  $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
0b35786d7   Milton Miller   kbuild: call make...
120
121
122
  	$(Q)@:
  
  sub-make: FORCE
23a45e2c0   Sam Ravnborg   kbuild: pass less...
123
124
  	$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
  	KBUILD_SRC=$(CURDIR) \
0b35786d7   Milton Miller   kbuild: call make...
125
126
  	KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
  	$(filter-out _all sub-make,$(MAKECMDGOALS))
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
127
128
129
130
131
132
133
134
135
136
137
  
  # Leave processing to above invocation of make
  skip-makefile := 1
  endif # ifneq ($(KBUILD_OUTPUT),)
  endif # ifeq ($(KBUILD_SRC),)
  
  # We process the rest of the Makefile if this is the final invocation of make
  ifeq ($(skip-makefile),)
  
  # If building an external module we do not care about the all: rule
  # but instead _all depend on modules
4f1933620   Paul Smith   kbuild: change kb...
138
  PHONY += all
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
139
140
141
142
143
144
145
146
147
148
149
150
  ifeq ($(KBUILD_EXTMOD),)
  _all: all
  else
  _all: modules
  endif
  
  srctree		:= $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR))
  TOPDIR		:= $(srctree)
  # FIXME - TOPDIR is obsolete, use srctree/objtree
  objtree		:= $(CURDIR)
  src		:= $(srctree)
  obj		:= $(objtree)
0f558c333   Mattia Dongili   kbuild: fix a csc...
151
  VPATH		:= $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
152
153
  
  export srctree objtree VPATH TOPDIR
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
154
155
156
157
158
159
160
161
162
  
  # SUBARCH tells the usermode build what the underlying arch is.  That is set
  # first, and if a usermode build is happening, the "ARCH=um" on the command
  # line overrides the setting of ARCH below.  If a native build is happening,
  # then ARCH is assigned, getting whatever value it gets normally, and 
  # SUBARCH is subsequently ignored.
  
  SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
  				  -e s/arm.*/arm/ -e s/sa110/arm/ \
39990b5eb   Linus Torvalds   ppc64: default bu...
163
  				  -e s/s390x/s390/ -e s/parisc64/parisc/ \
236b19574   Paul Mundt   sh: Correct SUBAR...
164
  				  -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
12760cb4d   Paul Mundt   sh: Fix up uname ...
165
  				  -e s/sh.*/sh/ )
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
  
  # Cross compiling and selecting different set of gcc/bin-utils
  # ---------------------------------------------------------------------------
  #
  # When performing cross compilation for other architectures ARCH shall be set
  # to the target architecture. (See arch/* for the possibilities).
  # ARCH can be set during invocation of make:
  # make ARCH=ia64
  # Another way is to have ARCH set in the environment.
  # The default ARCH is the host where make is executed.
  
  # CROSS_COMPILE specify the prefix used for all executables used
  # during compilation. Only gcc and related bin-utils executables
  # are prefixed with $(CROSS_COMPILE).
  # CROSS_COMPILE can be set on the command line
  # make CROSS_COMPILE=ia64-linux-
  # Alternatively CROSS_COMPILE can be set in the environment.
  # Default value for CROSS_COMPILE is not to prefix executables
  # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
4ce6efed4   Sam Ravnborg   kbuild: soften mo...
185
  export KBUILD_BUILDHOST := $(SUBARCH)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
186
187
188
189
  ARCH		?= $(SUBARCH)
  CROSS_COMPILE	?=
  
  # Architecture as present in compile.h
6752ed90d   Thomas Gleixner   Kbuild: allow arc...
190
191
  UTS_MACHINE 	:= $(ARCH)
  SRCARCH 	:= $(ARCH)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
192

d746d647f   Sam Ravnborg   x86: do not use $...
193
194
195
196
197
198
199
  # Additional ARCH settings for x86
  ifeq ($(ARCH),i386)
          SRCARCH := x86
  endif
  ifeq ($(ARCH),x86_64)
          SRCARCH := x86
  endif
74b469f2e   Sam Ravnborg   x86: move i386 an...
200

14cdd3c40   Roman Zippel   kconfig: KCONFIG_...
201
  KCONFIG_CONFIG	?= .config
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
202
203
204
205
  # SHELL used by kbuild
  CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \
  	  else if [ -x /bin/bash ]; then echo /bin/bash; \
  	  else echo sh; fi ; fi)
070b98bfd   Sam Ravnborg   kbuild: trivial f...
206
207
208
209
  HOSTCC       = gcc
  HOSTCXX      = g++
  HOSTCFLAGS   = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer
  HOSTCXXFLAGS = -O2
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
210

070b98bfd   Sam Ravnborg   kbuild: trivial f...
211
212
  # Decide whether to build built-in, modular, or both.
  # Normally, just do built-in.
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
213
214
215
216
217
218
219
  
  KBUILD_MODULES :=
  KBUILD_BUILTIN := 1
  
  #	If we have only "make modules", don't compile built-in objects.
  #	When we're building modules with modversions, we need to consider
  #	the built-in objects during the descend as well, in order to
070b98bfd   Sam Ravnborg   kbuild: trivial f...
220
  #	make sure the checksums are up to date before we record them.
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
  
  ifeq ($(MAKECMDGOALS),modules)
    KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)
  endif
  
  #	If we have "make <whatever> modules", compile modules
  #	in addition to whatever we do anyway.
  #	Just "make" or "make all" shall build modules as well
  
  ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)
    KBUILD_MODULES := 1
  endif
  
  ifeq ($(MAKECMDGOALS),)
    KBUILD_MODULES := 1
  endif
e579d351b   Sam Ravnborg   kbuild: KBUILD_VE...
237
  export KBUILD_MODULES KBUILD_BUILTIN
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
238
239
240
241
242
243
244
245
246
247
248
249
250
251
  export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD
  
  # Beautify output
  # ---------------------------------------------------------------------------
  #
  # Normally, we echo the whole command before executing it. By making
  # that echo $($(quiet)$(cmd)), we now have the possibility to set
  # $(quiet) to choose other forms of output instead, e.g.
  #
  #         quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@
  #         cmd_cc_o_c       = $(CC) $(c_flags) -c -o $@ $<
  #
  # If $(quiet) is empty, the whole command will be printed.
  # If it is set to "quiet_", only the short version will be printed. 
070b98bfd   Sam Ravnborg   kbuild: trivial f...
252
  # If it is set to "silent_", nothing will be printed at all, since
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
253
254
  # the variable $(silent_cmd_cc_o_c) doesn't exist.
  #
a58a414fd   Adrian Bunk   spelling: s/usefu...
255
  # A simple variant is to prefix commands with $(Q) - that's useful
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
  # for commands that shall be hidden in non-verbose mode.
  #
  #	$(Q)ln $@ :<
  #
  # If KBUILD_VERBOSE equals 0 then the above command will be hidden.
  # If KBUILD_VERBOSE equals 1 then the above command is displayed.
  
  ifeq ($(KBUILD_VERBOSE),1)
    quiet =
    Q =
  else
    quiet=quiet_
    Q = @
  endif
  
  # If the user is running make -s (silent mode), suppress echoing of
  # commands
  
  ifneq ($(findstring s,$(MAKEFLAGS)),)
    quiet=silent_
  endif
  
  export quiet Q KBUILD_VERBOSE
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
279
280
281
  
  # Look for make include files relative to root of kernel src
  MAKEFLAGS += --include-dir=$(srctree)
1cacc9ab8   Sam Ravnborg   kbuild: fix build...
282
283
  # We need some generic definitions (do not try to remake the file).
  $(srctree)/scripts/Kbuild.include: ;
15964864c   Oleg Verych   [PATCH] kbuild: f...
284
  include $(srctree)/scripts/Kbuild.include
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
  
  # Make variables (CC, etc...)
  
  AS		= $(CROSS_COMPILE)as
  LD		= $(CROSS_COMPILE)ld
  CC		= $(CROSS_COMPILE)gcc
  CPP		= $(CC) -E
  AR		= $(CROSS_COMPILE)ar
  NM		= $(CROSS_COMPILE)nm
  STRIP		= $(CROSS_COMPILE)strip
  OBJCOPY		= $(CROSS_COMPILE)objcopy
  OBJDUMP		= $(CROSS_COMPILE)objdump
  AWK		= awk
  GENKSYMS	= scripts/genksyms/genksyms
  DEPMOD		= /sbin/depmod
  KALLSYMS	= scripts/kallsyms
  PERL		= perl
  CHECK		= sparse
af4ca457e   Al Viro   [PATCH] gfp_t: in...
303
  CHECKFLAGS     := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
304
305
306
  MODFLAGS	= -DMODULE
  CFLAGS_MODULE   = $(MODFLAGS)
  AFLAGS_MODULE   = $(MODFLAGS)
114f51577   Roland McGrath   kbuild: use LDFLA...
307
  LDFLAGS_MODULE  =
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
308
309
310
311
312
313
314
  CFLAGS_KERNEL	=
  AFLAGS_KERNEL	=
  
  
  # Use LINUXINCLUDE when you must reference the include/ directory.
  # Needed to be compatible with the O= option
  LINUXINCLUDE    := -Iinclude \
2dd34b488   Russell King   [PATCH] kbuild: p...
315
                     $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
e623a3b80   Zachary Amsden   [PATCH] kbuild: b...
316
  		   -include include/linux/autoconf.h
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
317

06c5040cd   Sam Ravnborg   kbuild: enable 'm...
318
  KBUILD_CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
319

a0f97e06a   Sam Ravnborg   kbuild: enable 'm...
320
  KBUILD_CFLAGS   := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
94bed2a9c   Dave Jones   Add -Werror-impli...
321
322
  		   -fno-strict-aliasing -fno-common \
  		   -Werror-implicit-function-declaration
222d394d3   Sam Ravnborg   kbuild: enable 'm...
323
  KBUILD_AFLAGS   := -D__ASSEMBLY__
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
324

f1d28fb04   Roman Zippel   kconfig: move .ke...
325
326
  # Read KERNELRELEASE from include/config/kernel.release (if it exists)
  KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
2244cbd8a   Sam Ravnborg   kbuild: create .k...
327
  KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
cb58455c4   Sam Ravnborg   kbuild: KERNELREL...
328

070b98bfd   Sam Ravnborg   kbuild: trivial f...
329
  export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
80ef88d6d   Sam Ravnborg   x86: simplify "ma...
330
  export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
070b98bfd   Sam Ravnborg   kbuild: trivial f...
331
332
  export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE
  export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
333

06c5040cd   Sam Ravnborg   kbuild: enable 'm...
334
  export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
a0f97e06a   Sam Ravnborg   kbuild: enable 'm...
335
  export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
222d394d3   Sam Ravnborg   kbuild: enable 'm...
336
  export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
337
338
339
340
341
  
  # When compiling out-of-tree modules, put MODVERDIR in the module
  # tree rather than in the kernel tree. The kernel tree might
  # even be read-only.
  export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
342
  # Files to ignore in find ... statements
406119f49   Trond Myklebust   [PATCH] Ensure th...
343
344
  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
  export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
345
346
347
348
349
  
  # ===========================================================================
  # Rules shared between *config targets and build targets
  
  # Basic helpers built in scripts/
4f1933620   Paul Smith   kbuild: change kb...
350
  PHONY += scripts_basic
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
351
352
  scripts_basic:
  	$(Q)$(MAKE) $(build)=scripts/basic
cd05e6bdc   Jan Beulich   [PATCH] kbuild: f...
353
354
  # To avoid any implicit rule to kick in, define an empty command.
  scripts/basic/%: scripts_basic ;
4f1933620   Paul Smith   kbuild: change kb...
355
  PHONY += outputmakefile
fd5f0cd6b   Jan Beulich   kbuild: Do not ov...
356
357
358
  # outputmakefile generates a Makefile in the output directory, if using a
  # separate output directory. This allows convenient use of make in the
  # output directory.
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
359
  outputmakefile:
fd5f0cd6b   Jan Beulich   kbuild: Do not ov...
360
361
362
363
  ifneq ($(KBUILD_SRC),)
  	$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \
  	    $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)
  endif
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
364
365
366
367
368
  
  # To make sure we do not include .config for any of the *config targets
  # catch them early, and hand them over to scripts/kconfig/Makefile
  # It is allowed to specify more targets when calling make, including
  # mixing *config targets and build targets.
070b98bfd   Sam Ravnborg   kbuild: trivial f...
369
  # For example 'make oldconfig all'.
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
370
371
  # Detect when mixed targets is specified, and make a second invocation
  # of make so .config is not included in this case either (for *config).
3eb3c740f   Roman Zippel   [PATCH] fix linux...
372
  no-dot-config-targets := clean mrproper distclean \
c30a02e02   Roman Zippel   kbuild: `make ker...
373
  			 cscope TAGS tags help %docs check% \
3eb3c740f   Roman Zippel   [PATCH] fix linux...
374
375
  			 include/linux/version.h headers_% \
  			 kernelrelease kernelversion
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
  
  config-targets := 0
  mixed-targets  := 0
  dot-config     := 1
  
  ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)
  	ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)
  		dot-config := 0
  	endif
  endif
  
  ifeq ($(KBUILD_EXTMOD),)
          ifneq ($(filter config %config,$(MAKECMDGOALS)),)
                  config-targets := 1
                  ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)
                          mixed-targets := 1
                  endif
          endif
  endif
  
  ifeq ($(mixed-targets),1)
  # ===========================================================================
  # We're called with mixed targets (*config and build targets).
  # Handle them one by one.
  
  %:: FORCE
  	$(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@
  
  else
  ifeq ($(config-targets),1)
  # ===========================================================================
  # *config targets only - make sure prerequisites are updated, and descend
  # in scripts/kconfig to make the *config target
  
  # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
  # KBUILD_DEFCONFIG may point out an alternative default configuration
  # used for 'make defconfig'
74b469f2e   Sam Ravnborg   x86: move i386 an...
413
  include $(srctree)/arch/$(SRCARCH)/Makefile
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
414
  export KBUILD_DEFCONFIG
cd05e6bdc   Jan Beulich   [PATCH] kbuild: f...
415
  config %config: scripts_basic outputmakefile FORCE
c955ccafc   Roman Zippel   kconfig: fix .con...
416
  	$(Q)mkdir -p include/linux include/config
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
417
418
419
420
421
422
423
424
425
426
  	$(Q)$(MAKE) $(build)=scripts/kconfig $@
  
  else
  # ===========================================================================
  # Build targets only - this includes vmlinux, arch specific targets, clean
  # targets and others. In general all targets except *config targets.
  
  ifeq ($(KBUILD_EXTMOD),)
  # Additional helpers built in scripts/
  # Carefully list dependencies so we do not try to build scripts twice
070b98bfd   Sam Ravnborg   kbuild: trivial f...
427
  # in parallel
4f1933620   Paul Smith   kbuild: change kb...
428
  PHONY += scripts
2e3646e51   Roman Zippel   kconfig: integrat...
429
  scripts: scripts_basic include/config/auto.conf
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
430
  	$(Q)$(MAKE) $(build)=$(@)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
431
432
  # Objects we will link into vmlinux / subdirs we need to visit
  init-y		:= init/
4d2acfbfd   David Woodhouse   firmware: Add CON...
433
  drivers-y	:= drivers/ sound/ firmware/
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
434
435
436
437
438
439
  net-y		:= net/
  libs-y		:= lib/
  core-y		:= usr/
  endif # KBUILD_EXTMOD
  
  ifeq ($(dot-config),1)
9ee4e3365   Sam Ravnborg   kbuild: external ...
440
441
  # Read in config
  -include include/config/auto.conf
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
442

9ee4e3365   Sam Ravnborg   kbuild: external ...
443
  ifeq ($(KBUILD_EXTMOD),)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
444
445
  # Read in dependencies to all Kconfig* files, make sure to run
  # oldconfig if changes are detected.
c955ccafc   Roman Zippel   kconfig: fix .con...
446
  -include include/config/auto.conf.cmd
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
447

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
448
  # To avoid any implicit rule to kick in, define an empty command
14cdd3c40   Roman Zippel   kconfig: KCONFIG_...
449
  $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
450

c955ccafc   Roman Zippel   kconfig: fix .con...
451
  # If .config is newer than include/config/auto.conf, someone tinkered
752625cff   Sam Ravnborg   kbuild: always ru...
452
  # with it and forgot to run make oldconfig.
070b98bfd   Sam Ravnborg   kbuild: trivial f...
453
  # if auto.conf.cmd is missing then we are probably in a cleaned tree so
752625cff   Sam Ravnborg   kbuild: always ru...
454
  # we execute the config step to be sure to catch updated Kconfig files
14cdd3c40   Roman Zippel   kconfig: KCONFIG_...
455
  include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
456
457
  	$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
  else
9ee4e3365   Sam Ravnborg   kbuild: external ...
458
459
460
461
462
463
464
465
466
467
468
469
470
471
  # external modules needs include/linux/autoconf.h and include/config/auto.conf
  # but do not care if they are up-to-date. Use auto.conf to trigger the test
  PHONY += include/config/auto.conf
  
  include/config/auto.conf:
  	$(Q)test -e include/linux/autoconf.h -a -e $@ || (		\
  	echo;								\
  	echo "  ERROR: Kernel configuration is invalid.";		\
  	echo "         include/linux/autoconf.h or $@ are missing.";	\
  	echo "         Run 'make oldconfig && make prepare' on kernel src to fix it.";	\
  	echo;								\
  	/bin/false)
  
  endif # KBUILD_EXTMOD
c955ccafc   Roman Zippel   kconfig: fix .con...
472

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
473
474
  else
  # Dummy target needed, because used as prerequisite
c955ccafc   Roman Zippel   kconfig: fix .con...
475
  include/config/auto.conf: ;
9ee4e3365   Sam Ravnborg   kbuild: external ...
476
  endif # $(dot-config)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
477
478
479
480
  
  # The all: target is the default when no target is given on the
  # command line.
  # This allow a user to issue only 'make' to build a kernel including modules
070b98bfd   Sam Ravnborg   kbuild: trivial f...
481
  # Defaults vmlinux but it is usually overridden in the arch makefile
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
482
483
484
  all: vmlinux
  
  ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
a0f97e06a   Sam Ravnborg   kbuild: enable 'm...
485
  KBUILD_CFLAGS	+= -Os
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
486
  else
a0f97e06a   Sam Ravnborg   kbuild: enable 'm...
487
  KBUILD_CFLAGS	+= -O2
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
488
  endif
bef5b54bd   Ralf Baechle   Fix MIPS cross-co...
489
  include $(srctree)/arch/$(SRCARCH)/Makefile
35bb5b1e0   Andi Kleen   Add option to ena...
490
491
492
  ifneq (CONFIG_FRAME_WARN,0)
  KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
  endif
e06b8b98d   Sam Ravnborg   kbuild: allow -fs...
493
494
495
  # Force gcc to behave correct even for buggy distributions
  # Arch Makefiles may override this setting
  KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
496
  ifdef CONFIG_FRAME_POINTER
a0f97e06a   Sam Ravnborg   kbuild: enable 'm...
497
  KBUILD_CFLAGS	+= -fno-omit-frame-pointer -fno-optimize-sibling-calls
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
498
  else
a0f97e06a   Sam Ravnborg   kbuild: enable 'm...
499
  KBUILD_CFLAGS	+= -fomit-frame-pointer
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
500
501
502
  endif
  
  ifdef CONFIG_DEBUG_INFO
a0f97e06a   Sam Ravnborg   kbuild: enable 'm...
503
  KBUILD_CFLAGS	+= -g
222d394d3   Sam Ravnborg   kbuild: enable 'm...
504
  KBUILD_AFLAGS	+= -gdwarf-2
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
505
  endif
16444a8a4   Arnaldo Carvalho de Melo   ftrace: add basic...
506
507
508
  ifdef CONFIG_FTRACE
  KBUILD_CFLAGS	+= -pg
  endif
91341d4b2   Sam Ravnborg   kbuild: introduce...
509
510
511
512
  # We trigger additional mismatches with less inlining
  ifdef CONFIG_DEBUG_SECTION_MISMATCH
  KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
  endif
e8e699317   Sam Ravnborg   [PATCH] kbuild: S...
513
  # arch Makefile may override CC so keep this after arch Makefile is included
e8f5bdb02   Rik van Riel   [PATCH] Makefile ...
514
  NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
e8e699317   Sam Ravnborg   [PATCH] kbuild: S...
515
  CHECKFLAGS     += $(NOSTDINC_FLAGS)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
516
  # warn about C99 declaration after statement
a0f97e06a   Sam Ravnborg   kbuild: enable 'm...
517
  KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
518

070b98bfd   Sam Ravnborg   kbuild: trivial f...
519
  # disable pointer signed / unsigned warnings in gcc 4.0
a0f97e06a   Sam Ravnborg   kbuild: enable 'm...
520
  KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
521

06c5040cd   Sam Ravnborg   kbuild: enable 'm...
522
  # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
69ee0b352   Sam Ravnborg   kbuild: do not pi...
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
  # But warn user when we do so
  warn-assign = \
  $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)")
  
  ifneq ($(KCPPFLAGS),)
          $(call warn-assign,CPPFLAGS)
          KBUILD_CPPFLAGS += $(KCPPFLAGS)
  endif
  ifneq ($(KAFLAGS),)
          $(call warn-assign,AFLAGS)
          KBUILD_AFLAGS += $(KAFLAGS)
  endif
  ifneq ($(KCFLAGS),)
          $(call warn-assign,CFLAGS)
          KBUILD_CFLAGS += $(KCFLAGS)
  endif
52bcc3308   Sam Ravnborg   kbuild: enable us...
539

18991197b   Roland McGrath   Use --build-id ld...
540
541
542
543
544
  # Use --build-id when available.
  LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
  			      $(call ld-option, -Wl$(comma)--build-id,))
  LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
  LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
545
  # Default kernel image to build when no specific target is given.
070b98bfd   Sam Ravnborg   kbuild: trivial f...
546
  # KBUILD_IMAGE may be overruled on the command line or
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
547
548
549
550
551
552
553
554
555
556
557
558
559
  # set in the environment
  # Also any assignments in arch/$(ARCH)/Makefile take precedence over
  # this default value
  export KBUILD_IMAGE ?= vmlinux
  
  #
  # INSTALL_PATH specifies where to place the updated kernel and system map
  # images. Default is /boot, but you can set it to other values
  export	INSTALL_PATH ?= /boot
  
  #
  # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
  # relocations required by build roots.  This is not defined in the
070b98bfd   Sam Ravnborg   kbuild: trivial f...
560
  # makefile but the argument can be passed to make if needed.
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
561
  #
df9df036d   Sam Ravnborg   kbuild: fix 'make...
562
  MODLIB	= $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
563
  export MODLIB
ac031f26e   Theodore Ts'o   kbuild: add optio...
564
565
566
567
568
569
570
571
  #
  #  INSTALL_MOD_STRIP, if defined, will cause modules to be
  #  stripped after they are installed.  If INSTALL_MOD_STRIP is '1', then
  #  the default option --strip-debug will be used.  Otherwise,
  #  INSTALL_MOD_STRIP will used as the options to the strip command.
  
  ifdef INSTALL_MOD_STRIP
  ifeq ($(INSTALL_MOD_STRIP),1)
e340221ac   Andreas Schwab   [PATCH] Makefile ...
572
  mod_strip_cmd = $(STRIP) --strip-debug
ac031f26e   Theodore Ts'o   kbuild: add optio...
573
574
575
576
577
578
579
  else
  mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
  endif # INSTALL_MOD_STRIP=1
  else
  mod_strip_cmd = true
  endif # INSTALL_MOD_STRIP
  export mod_strip_cmd
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
580
581
  
  ifeq ($(KBUILD_EXTMOD),)
3a65dfe8c   Jens Axboe   [BLOCK] Move all ...
582
  core-y		+= kernel/ mm/ fs/ ipc/ security/ crypto/ block/
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
  
  vmlinux-dirs	:= $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \
  		     $(core-y) $(core-m) $(drivers-y) $(drivers-m) \
  		     $(net-y) $(net-m) $(libs-y) $(libs-m)))
  
  vmlinux-alldirs	:= $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \
  		     $(init-n) $(init-) \
  		     $(core-n) $(core-) $(drivers-n) $(drivers-) \
  		     $(net-n)  $(net-)  $(libs-n)    $(libs-))))
  
  init-y		:= $(patsubst %/, %/built-in.o, $(init-y))
  core-y		:= $(patsubst %/, %/built-in.o, $(core-y))
  drivers-y	:= $(patsubst %/, %/built-in.o, $(drivers-y))
  net-y		:= $(patsubst %/, %/built-in.o, $(net-y))
  libs-y1		:= $(patsubst %/, %/lib.a, $(libs-y))
  libs-y2		:= $(patsubst %/, %/built-in.o, $(libs-y))
  libs-y		:= $(libs-y1) $(libs-y2)
  
  # Build vmlinux
  # ---------------------------------------------------------------------------
070b98bfd   Sam Ravnborg   kbuild: trivial f...
603
  # vmlinux is built from the objects selected by $(vmlinux-init) and
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
604
  # $(vmlinux-main). Most are built-in.o files from top-level directories
2462566f2   Uwe Zeisberger   kbuild: add a mis...
605
  # in the kernel tree, others are specified in arch/$(ARCH)/Makefile.
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
  # Ordering when linking is important, and $(vmlinux-init) must be first.
  #
  # vmlinux
  #   ^
  #   |
  #   +-< $(vmlinux-init)
  #   |   +--< init/version.o + more
  #   |
  #   +--< $(vmlinux-main)
  #   |    +--< driver/built-in.o mm/built-in.o + more
  #   |
  #   +-< kallsyms.o (see description in CONFIG_KALLSYMS section)
  #
  # vmlinux version (uname -v) cannot be updated during normal
  # descending-into-subdirs phase since we do not yet know if we need to
  # update vmlinux.
  # Therefore this step is delayed until just before final link of vmlinux -
  # except in the kallsyms case where it is done just before adding the
  # symbols to the kernel.
  #
  # System.map is generated to document addresses of all kernel symbols
  
  vmlinux-init := $(head-y) $(init-y)
  vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)
  vmlinux-all  := $(vmlinux-init) $(vmlinux-main)
6752ed90d   Thomas Gleixner   Kbuild: allow arc...
631
  vmlinux-lds  := arch/$(SRCARCH)/kernel/vmlinux.lds
85bd2fddd   Sam Ravnborg   kbuild: fix secti...
632
  export KBUILD_VMLINUX_OBJS := $(vmlinux-all)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
633
634
635
636
637
638
639
  
  # Rule to link vmlinux - also used during CONFIG_KALLSYMS
  # May be overridden by arch/$(ARCH)/Makefile
  quiet_cmd_vmlinux__ ?= LD      $@
        cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \
        -T $(vmlinux-lds) $(vmlinux-init)                          \
        --start-group $(vmlinux-main) --end-group                  \
741f98fe2   Sam Ravnborg   kbuild: do sectio...
640
        $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
641
642
643
644
  
  # Generate new vmlinux version
  quiet_cmd_vmlinux_version = GEN     .version
        cmd_vmlinux_version = set -e;                     \
4e25d8bb9   Jan Beulich   [PATCH] kbuild: a...
645
646
647
648
649
650
651
  	if [ ! -r .version ]; then			\
  	  rm -f .version;				\
  	  echo 1 >.version;				\
  	else						\
  	  mv .version .old_version;			\
  	  expr 0$$(cat .old_version) + 1 >.version;	\
  	fi;						\
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
652
653
654
  	$(MAKE) $(build)=init
  
  # Generate System.map
070b98bfd   Sam Ravnborg   kbuild: trivial f...
655
  quiet_cmd_sysmap = SYSMAP
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
656
657
658
659
660
        cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap
  
  # Link of vmlinux
  # If CONFIG_KALLSYMS is set .version is already updated
  # Generate System.map and verify that the content is consistent
39ca371c4   Mark Rustad   [PATCH] kbuild: E...
661
662
  # Use + in front of the vmlinux_version rule to silent warning with make -j2
  # First command is ':' to allow us to use + in front of the rule
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
663
  define rule_vmlinux__
39ca371c4   Mark Rustad   [PATCH] kbuild: E...
664
  	:
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
665
666
667
668
  	$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))
  
  	$(call cmd,vmlinux__)
  	$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
4635281c8   Sam Ravnborg   kbuild: preperly ...
669
670
671
672
673
674
  	$(Q)$(if $($(quiet)cmd_sysmap),                                      \
  	  echo '  $($(quiet)cmd_sysmap)  System.map' &&)                     \
  	$(cmd_sysmap) $@ System.map;                                         \
  	if [ $$? -ne 0 ]; then                                               \
  		rm -f $@;                                                    \
  		/bin/false;                                                  \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
  	fi;
  	$(verify_kallsyms)
  endef
  
  
  ifdef CONFIG_KALLSYMS
  # Generate section listing all symbols and add it into vmlinux $(kallsyms.o)
  # It's a three stage process:
  # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is
  #   empty
  #   Running kallsyms on that gives us .tmp_kallsyms1.o with
  #   the right size - vmlinux version (uname -v) is updated during this step
  # o .tmp_vmlinux2 now has a __kallsyms section of the right size,
  #   but due to the added section, some addresses have shifted.
  #   From here, we generate a correct .tmp_kallsyms2.o
  # o The correct .tmp_kallsyms2.o is linked into the final vmlinux.
  # o Verify that the System.map from vmlinux matches the map from
  #   .tmp_vmlinux2, just in case we did not generate kallsyms correctly.
  # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using
  #   .tmp_vmlinux3 and .tmp_kallsyms3.o.  This is only meant as a
  #   temporary bypass to allow the kernel to be built while the
  #   maintainers work out what went wrong with kallsyms.
  
  ifdef CONFIG_KALLSYMS_EXTRA_PASS
  last_kallsyms := 3
  else
  last_kallsyms := 2
  endif
  
  kallsyms.o := .tmp_kallsyms$(last_kallsyms).o
  
  define verify_kallsyms
4635281c8   Sam Ravnborg   kbuild: preperly ...
707
708
  	$(Q)$(if $($(quiet)cmd_sysmap),                                      \
  	  echo '  $($(quiet)cmd_sysmap)  .tmp_System.map' &&)                \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
709
  	  $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map
4635281c8   Sam Ravnborg   kbuild: preperly ...
710
711
712
  	$(Q)cmp -s System.map .tmp_System.map ||                             \
  		(echo Inconsistent kallsyms data;                            \
  		 echo Try setting CONFIG_KALLSYMS_EXTRA_PASS;                \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
713
714
715
716
717
  		 rm .tmp_kallsyms* ; /bin/false )
  endef
  
  # Update vmlinux version before link
  # Use + in front of this rule to silent warning about make -j1
72ba47c1b   Sam Ravnborg   kbuild: silence m...
718
  # First command is ':' to allow us to use + in front of this rule
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
719
720
  cmd_ksym_ld = $(cmd_vmlinux__)
  define rule_ksym_ld
72ba47c1b   Sam Ravnborg   kbuild: silence m...
721
  	: 
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
  	+$(call cmd,vmlinux_version)
  	$(call cmd,vmlinux__)
  	$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
  endef
  
  # Generate .S file with all kernel symbols
  quiet_cmd_kallsyms = KSYM    $@
        cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \
                       $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@
  
  .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE
  	$(call if_changed_dep,as_o_S)
  
  .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)
  	$(call cmd,kallsyms)
  
  # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version
  .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE
  	$(call if_changed_rule,ksym_ld)
  
  .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE
  	$(call if_changed,vmlinux__)
  
  .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE
  	$(call if_changed,vmlinux__)
  
  # Needs to visit scripts/ before $(KALLSYMS) can be used.
  $(KALLSYMS): scripts ;
33bc25eae   Sam Ravnborg   kbuild: Add targe...
750
751
752
753
754
755
756
757
758
  # Generate some data for debugging strange kallsyms problems
  debug_kallsyms: .tmp_map$(last_kallsyms)
  
  .tmp_map%: .tmp_vmlinux% FORCE
  	($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@
  
  .tmp_map3: .tmp_map2
  
  .tmp_map2: .tmp_map1
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
759
  endif # ifdef CONFIG_KALLSYMS
741f98fe2   Sam Ravnborg   kbuild: do sectio...
760
761
762
763
764
  # Do modpost on a prelinked vmlinux. The finally linked vmlinux has
  # relevant sections renamed as per the linker script.
  quiet_cmd_vmlinux-modpost = LD      $@
        cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@                          \
  	 $(vmlinux-init) --start-group $(vmlinux-main) --end-group             \
90ebd878a   Sam Ravnborg   kbuild: fix vmlin...
765
  	 $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^)
741f98fe2   Sam Ravnborg   kbuild: do sectio...
766
767
768
769
770
771
  define rule_vmlinux-modpost
  	:
  	+$(call cmd,vmlinux-modpost)
  	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@
  	$(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd
  endef
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
772
  # vmlinux image - including updated kernel symbols
310f8243a   Sam Ravnborg   kbuild: link vmli...
773
  vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE
0f836e5fe   David Woodhouse   [PATCH] Add CONFI...
774
  ifdef CONFIG_HEADERS_CHECK
0e7af8d04   David Woodhouse   [PATCH] Fix heade...
775
  	$(Q)$(MAKE) -f $(srctree)/Makefile headers_check
0f836e5fe   David Woodhouse   [PATCH] Add CONFI...
776
  endif
267c4025f   Mathieu Desnoyers   markers: Add samp...
777
778
779
  ifdef CONFIG_SAMPLES
  	$(Q)$(MAKE) $(build)=samples
  endif
741f98fe2   Sam Ravnborg   kbuild: do sectio...
780
  	$(call vmlinux-modpost)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
781
  	$(call if_changed_rule,vmlinux__)
4e25d8bb9   Jan Beulich   [PATCH] kbuild: a...
782
  	$(Q)rm -f .old_version
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
783

310f8243a   Sam Ravnborg   kbuild: link vmli...
784
  # build vmlinux.o first to catch section mismatch errors early
cf87dcd14   Sam Ravnborg   kbuild: fix build...
785
786
787
  ifdef CONFIG_KALLSYMS
  .tmp_vmlinux1: vmlinux.o
  endif
90ebd878a   Sam Ravnborg   kbuild: fix vmlin...
788
789
790
  
  modpost-init := $(filter-out init/built-in.o, $(vmlinux-init))
  vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE
741f98fe2   Sam Ravnborg   kbuild: do sectio...
791
  	$(call if_changed_rule,vmlinux-modpost)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
792
793
794
795
796
797
798
799
800
  # The actual objects are generated when descending, 
  # make sure no implicit rule kicks in
  $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;
  
  # Handle descending into subdirectories listed in $(vmlinux-dirs)
  # Preset locale variables to speed up the build process. Limit locale
  # tweaks to this spot to avoid wrong language settings when running
  # make menuconfig etc.
  # Error messages still appears in the original language
4f1933620   Paul Smith   kbuild: change kb...
801
  PHONY += $(vmlinux-dirs)
5bb782690   Sam Ravnborg   kbuild: rename pr...
802
  $(vmlinux-dirs): prepare scripts
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
803
  	$(Q)$(MAKE) $(build)=$@
cb58455c4   Sam Ravnborg   kbuild: KERNELREL...
804
  # Build the kernel release string
cb58455c4   Sam Ravnborg   kbuild: KERNELREL...
805
  #
1ef988569   Robert P. J. Day   kbuild: correct a...
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
  # The KERNELRELEASE value built here is stored in the file
  # include/config/kernel.release, and is used when executing several
  # make targets, such as "make install" or "make modules_install."
  #
  # The eventual kernel release string consists of the following fields,
  # shown in a hierarchical format to show how smaller parts are concatenated
  # to form the larger and final value, with values coming from places like
  # the Makefile, kernel config options, make command line options and/or
  # SCM tag information.
  #
  #	$(KERNELVERSION)
  #	  $(VERSION)			eg, 2
  #	  $(PATCHLEVEL)			eg, 6
  #	  $(SUBLEVEL)			eg, 18
  #	  $(EXTRAVERSION)		eg, -rc6
  #	$(localver-full)
  #	  $(localver)
76c329563   Oleg Verych   [PATCH] kbuild: c...
823
  #	    localversion*		(files without backups, containing '~')
1ef988569   Robert P. J. Day   kbuild: correct a...
824
825
826
827
828
829
830
831
832
  #	    $(CONFIG_LOCALVERSION)	(from kernel config setting)
  #	  $(localver-auto)		(only if CONFIG_LOCALVERSION_AUTO is set)
  #	    ./scripts/setlocalversion	(SCM tag, if one exists)
  #	    $(LOCALVERSION)		(from make command line if provided)
  #
  #  Note how the final $(localver-auto) string is included *only* if the
  # kernel config option CONFIG_LOCALVERSION_AUTO is selected.  Also, at the
  # moment, only git is supported but other SCMs can edit the script
  # scripts/setlocalversion and add the appropriate checks as needed.
cb58455c4   Sam Ravnborg   kbuild: KERNELREL...
833

76c329563   Oleg Verych   [PATCH] kbuild: c...
834
835
  pattern = ".*/localversion[^~]*"
  string  = $(shell cat /dev/null \
fd19e44f4   Linus Torvalds   don't use 'localv...
836
  	   `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`)
cb58455c4   Sam Ravnborg   kbuild: KERNELREL...
837

76c329563   Oleg Verych   [PATCH] kbuild: c...
838
839
  localver = $(subst $(space),, $(string) \
  			      $(patsubst "%",%,$(CONFIG_LOCALVERSION)))
070b98bfd   Sam Ravnborg   kbuild: trivial f...
840

cb58455c4   Sam Ravnborg   kbuild: KERNELREL...
841
842
  # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called
  # and if the SCM is know a tag from the SCM is appended.
070b98bfd   Sam Ravnborg   kbuild: trivial f...
843
  # The appended tag is determined by the SCM used.
cb58455c4   Sam Ravnborg   kbuild: KERNELREL...
844
845
846
847
848
849
850
851
852
853
854
  #
  # Currently, only git is supported.
  # Other SCMs can edit scripts/setlocalversion and add the appropriate
  # checks as needed.
  ifdef CONFIG_LOCALVERSION_AUTO
  	_localver-auto = $(shell $(CONFIG_SHELL) \
  	                  $(srctree)/scripts/setlocalversion $(srctree))
  	localver-auto  = $(LOCALVERSION)$(_localver-auto)
  endif
  
  localver-full = $(localver)$(localver-auto)
f1d28fb04   Roman Zippel   kconfig: move .ke...
855
  # Store (new) KERNELRELASE string in include/config/kernel.release
2244cbd8a   Sam Ravnborg   kbuild: create .k...
856
  kernelrelease = $(KERNELVERSION)$(localver-full)
f1d28fb04   Roman Zippel   kconfig: move .ke...
857
  include/config/kernel.release: include/config/auto.conf FORCE
2244cbd8a   Sam Ravnborg   kbuild: create .k...
858
859
  	$(Q)rm -f $@
  	$(Q)echo $(kernelrelease) > $@
cb58455c4   Sam Ravnborg   kbuild: KERNELREL...
860

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
861
  # Things we need to do before we recursively start building the kernel
5bb782690   Sam Ravnborg   kbuild: rename pr...
862
863
864
865
  # or the modules are listed in "prepare".
  # A multi level approach is used. prepareN is processed before prepareN-1.
  # archprepare is used in arch Makefiles and when processed asm symlink,
  # version.h and scripts_basic is processed / created.
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
866

5bb782690   Sam Ravnborg   kbuild: rename pr...
867
  # Listed in dependency order
4f1933620   Paul Smith   kbuild: change kb...
868
  PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3
5bb782690   Sam Ravnborg   kbuild: rename pr...
869

86feeaa81   Sam Ravnborg   kbuild: full depe...
870
  # prepare3 is used to check if we are building in a separate output directory,
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
871
872
873
  # and if so do:
  # 1) Check that make has not been executed in the kernel src $(srctree)
  # 2) Create the include2 directory, used for the second asm symlink
f1d28fb04   Roman Zippel   kconfig: move .ke...
874
  prepare3: include/config/kernel.release
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
875
876
  ifneq ($(KBUILD_SRC),)
  	@echo '  Using $(srctree) as source for kernel'
c955ccafc   Roman Zippel   kconfig: fix .con...
877
  	$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
878
879
880
881
882
  		echo "  $(srctree) is not clean, please run 'make mrproper'";\
  		echo "  in the '$(srctree)' directory.";\
  		/bin/false; \
  	fi;
  	$(Q)if [ ! -d include2 ]; then mkdir -p include2; fi;
96a388de5   Thomas Gleixner   i386/x86_64: move...
883
  	$(Q)ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
884
  endif
86feeaa81   Sam Ravnborg   kbuild: full depe...
885
886
  # prepare2 creates a makefile if using a separate output directory
  prepare2: prepare3 outputmakefile
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
887

3eb3c740f   Roman Zippel   [PATCH] fix linux...
888
889
  prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \
                     include/asm include/config/auto.conf
7bb9d092d   Sam Ravnborg   kbuild: fix first...
890
  	$(cmd_crmodverdir)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
891

5bb782690   Sam Ravnborg   kbuild: rename pr...
892
893
894
  archprepare: prepare1 scripts_basic
  
  prepare0: archprepare FORCE
8d36a6236   Sam Ravnborg   kbuild: fix gener...
895
  	$(Q)$(MAKE) $(build)=.
c53aeca05   Sam Ravnborg   kbuild: complain ...
896
  	$(Q)$(MAKE) $(build)=. missing-syscalls
86feeaa81   Sam Ravnborg   kbuild: full depe...
897

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
898
  # All the preparing..
d395efb54   Robert P. J. Day   [PATCH] Kbuild: R...
899
  prepare: prepare0
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
900

070b98bfd   Sam Ravnborg   kbuild: trivial f...
901
902
  # Leave this as default for preprocessing vmlinux.lds.S, which is now
  # done in arch/$(ARCH)/kernel/Makefile
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
903
904
  
  export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
fc333b2df   Sam Ravnborg   kbuild: check asm...
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
  # The asm symlink changes when $(ARCH) changes.
  # Detect this and ask user to run make mrproper
  
  include/asm: FORCE
  	$(Q)set -e; asmlink=`readlink include/asm | cut -d '-' -f 2`;   \
  	if [ -L include/asm ]; then                                     \
  		if [ "$$asmlink" != "$(SRCARCH)" ]; then                \
  			echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \
  			echo "       set ARCH or save .config and run 'make mrproper' to fix it";             \
  			exit 1;                                         \
  		fi;                                                     \
  	else                                                            \
  		echo '  SYMLINK $@ -> include/asm-$(SRCARCH)';          \
  		if [ ! -d include ]; then                               \
  			mkdir -p include;                               \
  		fi;                                                     \
  		ln -fsn asm-$(SRCARCH) $@;                              \
  	fi
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
923

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
924
925
926
927
928
929
930
  # Generate some files
  # ---------------------------------------------------------------------------
  
  # KERNELRELEASE can change from a few different places, meaning version.h
  # needs to be updated, so this check is forced on all builds
  
  uts_len := 64
63104eec2   Sam Ravnborg   kbuild: introduce...
931
932
933
934
935
936
937
  define filechk_utsrelease.h
  	if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \
  	  echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2;    \
  	  exit 1;                                                         \
  	fi;                                                               \
  	(echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)
  endef
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
938
939
  
  define filechk_version.h
63104eec2   Sam Ravnborg   kbuild: introduce...
940
941
942
  	(echo \#define LINUX_VERSION_CODE $(shell                             \
  	expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL));     \
  	echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
943
  endef
63104eec2   Sam Ravnborg   kbuild: introduce...
944
  include/linux/version.h: $(srctree)/Makefile FORCE
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
945
  	$(call filechk,version.h)
63104eec2   Sam Ravnborg   kbuild: introduce...
946
947
  include/linux/utsrelease.h: include/config/kernel.release FORCE
  	$(call filechk,utsrelease.h)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
948
  # ---------------------------------------------------------------------------
4f1933620   Paul Smith   kbuild: change kb...
949
  PHONY += depend dep
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
950
951
952
953
  depend dep:
  	@echo '*** Warning: make $@ is unnecessary now.'
  
  # ---------------------------------------------------------------------------
88ecf814c   David Woodhouse   firmware: Add fir...
954
955
956
957
958
959
960
961
962
963
  # Firmware install
  INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware
  export INSTALL_FW_PATH
  
  PHONY += firmware_install
  firmware_install: FORCE
  	@mkdir -p $(objtree)/firmware
  	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install
  
  # ---------------------------------------------------------------------------
8d730cfb5   David Woodhouse   Basic implementat...
964
  # Kernel headers
1ab7a1f3b   David Woodhouse   [PATCH] headers_c...
965
  INSTALL_HDR_PATH=$(objtree)/usr
8d730cfb5   David Woodhouse   Basic implementat...
966
  export INSTALL_HDR_PATH
96a388de5   Thomas Gleixner   i386/x86_64: move...
967
968
  HDRFILTER=generic i386 x86_64
  HDRARCHES=$(filter-out $(HDRFILTER),$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild)))
6d7162758   David Woodhouse   New 'make headers...
969
970
  
  PHONY += headers_install_all
3eb3c740f   Roman Zippel   [PATCH] fix linux...
971
  headers_install_all: include/linux/version.h scripts_basic FORCE
398477d4b   Linus Torvalds   Merge git://git.i...
972
  	$(Q)$(MAKE) $(build)=scripts scripts/unifdef
6d7162758   David Woodhouse   New 'make headers...
973
  	$(Q)for arch in $(HDRARCHES); do \
398477d4b   Linus Torvalds   Merge git://git.i...
974
  	 $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch ;\
6d7162758   David Woodhouse   New 'make headers...
975
  	 done
8d730cfb5   David Woodhouse   Basic implementat...
976
  PHONY += headers_install
3eb3c740f   Roman Zippel   [PATCH] fix linux...
977
  headers_install: include/linux/version.h scripts_basic FORCE
96a388de5   Thomas Gleixner   i386/x86_64: move...
978
979
  	@if [ ! -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \
  	  echo '*** Error: Headers not exportable for this architecture ($(SRCARCH))'; \
f17b7bad3   David Woodhouse   Don't advertise (...
980
  	  exit 1 ; fi
07aea3a71   Sam Ravnborg   kbuild: use in-ke...
981
  	$(Q)$(MAKE) $(build)=scripts scripts/unifdef
96a388de5   Thomas Gleixner   i386/x86_64: move...
982
  	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include
8d730cfb5   David Woodhouse   Basic implementat...
983

1f85712e6   Mike Frysinger   [PATCH] new tople...
984
985
986
987
988
  PHONY += headers_check_all
  headers_check_all: headers_install_all
  	$(Q)for arch in $(HDRARCHES); do \
  	 $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch HDRCHECK=1 ;\
  	 done
684753599   David Woodhouse   Basic implementat...
989
990
  PHONY += headers_check
  headers_check: headers_install
96a388de5   Thomas Gleixner   i386/x86_64: move...
991
  	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst ARCH=$(SRCARCH) obj=include HDRCHECK=1
684753599   David Woodhouse   Basic implementat...
992

8d730cfb5   David Woodhouse   Basic implementat...
993
  # ---------------------------------------------------------------------------
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
994
995
996
  # Modules
  
  ifdef CONFIG_MODULES
070b98bfd   Sam Ravnborg   kbuild: trivial f...
997
  # By default, build modules as well
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
998
999
1000
1001
  
  all: modules
  
  #	Build modules
551559e13   Tejun Heo   kbuild: implement...
1002
1003
1004
1005
  #
  #	A module can be listed more than once in obj-m resulting in
  #	duplicate lines in modules.order files.  Those are removed
  #	using awk while concatenating to the final file.
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1006

4f1933620   Paul Smith   kbuild: change kb...
1007
  PHONY += modules
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1008
  modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)
551559e13   Tejun Heo   kbuild: implement...
1009
  	$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1010
  	@echo '  Building modules, stage 2.';
b805aa0e7   Sam Ravnborg   kbuild: make -rR ...
1011
  	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1012
1013
1014
  
  
  # Target to prepare building external modules
4f1933620   Paul Smith   kbuild: change kb...
1015
  PHONY += modules_prepare
5bb782690   Sam Ravnborg   kbuild: rename pr...
1016
  modules_prepare: prepare scripts
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1017
1018
  
  # Target to install modules
4f1933620   Paul Smith   kbuild: change kb...
1019
  PHONY += modules_install
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1020
  modules_install: _modinst_ _modinst_post
4f1933620   Paul Smith   kbuild: change kb...
1021
  PHONY += _modinst_
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1022
  _modinst_:
ce454d4d7   Tom Rini   [PATCH] kbuild: W...
1023
  	@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
  		echo "Warning: you may need to install module-init-tools"; \
  		echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\
  		sleep 1; \
  	fi
  	@rm -rf $(MODLIB)/kernel
  	@rm -f $(MODLIB)/source
  	@mkdir -p $(MODLIB)/kernel
  	@ln -s $(srctree) $(MODLIB)/source
  	@if [ ! $(objtree) -ef  $(MODLIB)/build ]; then \
  		rm -f $(MODLIB)/build ; \
  		ln -s $(objtree) $(MODLIB)/build ; \
  	fi
551559e13   Tejun Heo   kbuild: implement...
1036
  	@cp -f $(objtree)/modules.order $(MODLIB)/
b805aa0e7   Sam Ravnborg   kbuild: make -rR ...
1037
  	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1038

50a8ec31c   Sam Ravnborg   kbuild: disable d...
1039
  # This depmod is only for convenience to give the initial
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1040
1041
  # boot a modules.dep even before / is mounted read-write.  However the
  # boot script depmod is the master version.
4f1933620   Paul Smith   kbuild: change kb...
1042
  PHONY += _modinst_post
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1043
  _modinst_post: _modinst_
88ecf814c   David Woodhouse   firmware: Add fir...
1044
  	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst
50a8ec31c   Sam Ravnborg   kbuild: disable d...
1045
  	$(call cmd,depmod)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
  
  else # CONFIG_MODULES
  
  # Modules not configured
  # ---------------------------------------------------------------------------
  
  modules modules_install: FORCE
  	@echo
  	@echo "The present kernel configuration has modules disabled."
  	@echo "Type 'make config' and enable loadable module support."
  	@echo "Then build a kernel with module support enabled."
  	@echo
  	@exit 1
  
  endif # CONFIG_MODULES
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
  ###
  # Cleaning is done on three levels.
  # make clean     Delete most generated files
  #                Leave enough to build external modules
  # make mrproper  Delete the current configuration, and all generated files
  # make distclean Remove editor backup files, patch leftover files and the like
  
  # Directories & files removed with 'make clean'
  CLEAN_DIRS  += $(MODVERDIR)
  CLEAN_FILES +=	vmlinux System.map \
                  .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map
  
  # Directories & files removed with 'make mrproper'
1ab7a1f3b   David Woodhouse   [PATCH] headers_c...
1074
  MRPROPER_DIRS  += include/config include2 usr/include
50aa88e28   Tore Anderson   kbuild: ensure mr...
1075
  MRPROPER_FILES += .config .config.old include/asm .version .old_version \
3eb3c740f   Roman Zippel   [PATCH] fix linux...
1076
1077
                    include/linux/autoconf.h include/linux/version.h      \
                    include/linux/utsrelease.h                            \
7d3cc8b6d   Jan Blunck   Don't clean bound...
1078
                    include/linux/bounds.h include/asm*/asm-offsets.h     \
f1d28fb04   Roman Zippel   kconfig: move .ke...
1079
  		  Module.symvers tags TAGS cscope*
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1080
1081
1082
1083
1084
  
  # clean - Delete most, but leave enough to build external modules
  #
  clean: rm-dirs  := $(CLEAN_DIRS)
  clean: rm-files := $(CLEAN_FILES)
86feeaa81   Sam Ravnborg   kbuild: full depe...
1085
  clean-dirs      := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs))
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1086

4f1933620   Paul Smith   kbuild: change kb...
1087
  PHONY += $(clean-dirs) clean archclean
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1088
1089
1090
1091
1092
1093
1094
  $(clean-dirs):
  	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
  
  clean: archclean $(clean-dirs)
  	$(call cmd,rmdirs)
  	$(call cmd,rmfiles)
  	@find . $(RCS_FIND_IGNORE) \
070b98bfd   Sam Ravnborg   kbuild: trivial f...
1095
  		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
15fde6751   Andreas Gruenbacher   kbuild: support f...
1096
  		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
d35cb360c   Mathieu Desnoyers   markers: fix dupl...
1097
1098
  		-o -name '*.symtypes' -o -name 'modules.order' \
  		-o -name 'Module.markers' \) \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1099
1100
1101
1102
1103
1104
1105
  		-type f -print | xargs rm -f
  
  # mrproper - Delete all generated files, including .config
  #
  mrproper: rm-dirs  := $(wildcard $(MRPROPER_DIRS))
  mrproper: rm-files := $(wildcard $(MRPROPER_FILES))
  mrproper-dirs      := $(addprefix _mrproper_,Documentation/DocBook scripts)
4f1933620   Paul Smith   kbuild: change kb...
1106
  PHONY += $(mrproper-dirs) mrproper archmrproper
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1107
1108
1109
1110
1111
1112
1113
1114
1115
  $(mrproper-dirs):
  	$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)
  
  mrproper: clean archmrproper $(mrproper-dirs)
  	$(call cmd,rmdirs)
  	$(call cmd,rmfiles)
  
  # distclean
  #
4f1933620   Paul Smith   kbuild: change kb...
1116
  PHONY += distclean
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1117
1118
1119
  
  distclean: mrproper
  	@find $(srctree) $(RCS_FIND_IGNORE) \
070b98bfd   Sam Ravnborg   kbuild: trivial f...
1120
  		\( -name '*.orig' -o -name '*.rej' -o -name '*~' \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1121
  		-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \
070b98bfd   Sam Ravnborg   kbuild: trivial f...
1122
  		-o -name '.*.rej' -o -size 0 \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1123
1124
1125
1126
1127
1128
1129
1130
  		-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \
  		-type f -print | xargs rm -f
  
  
  # Packaging of the kernel to various formats
  # ---------------------------------------------------------------------------
  # rpm target kept for backward compatibility
  package-dir	:= $(srctree)/scripts/package
031ecc6de   Zach Brown   kbuild: add depen...
1131
  %pkg: include/config/kernel.release FORCE
6c2133e11   Sam Ravnborg   kbuild: fix make ...
1132
  	$(Q)$(MAKE) $(build)=$(package-dir) $@
031ecc6de   Zach Brown   kbuild: add depen...
1133
  rpm: include/config/kernel.release FORCE
6c2133e11   Sam Ravnborg   kbuild: fix make ...
1134
  	$(Q)$(MAKE) $(build)=$(package-dir) $@
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1135
1136
1137
1138
  
  
  # Brief documentation of the typical targets used
  # ---------------------------------------------------------------------------
5dffbe811   Segher Boessenkool   kbuild: show defc...
1139
  boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1140
  boards := $(notdir $(boards))
5dffbe811   Segher Boessenkool   kbuild: show defc...
1141
1142
  board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))
  board-dirs := $(sort $(notdir $(board-dirs:/=)))
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1143
1144
1145
  
  help:
  	@echo  'Cleaning targets:'
5ea084ef9   Samuel Tardieu   Use consistent ca...
1146
  	@echo  '  clean		  - Remove most generated files but keep the config and'
5cc8d246d   Jesper Juhl   kbuild: add distc...
1147
  	@echo  '                    enough build support to build external modules'
5ea084ef9   Samuel Tardieu   Use consistent ca...
1148
  	@echo  '  mrproper	  - Remove all generated files + config + various backup files'
5cc8d246d   Jesper Juhl   kbuild: add distc...
1149
  	@echo  '  distclean	  - mrproper + remove editor backup and patch files'
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1150
1151
1152
1153
1154
1155
1156
1157
  	@echo  ''
  	@echo  'Configuration targets:'
  	@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help
  	@echo  ''
  	@echo  'Other generic targets:'
  	@echo  '  all		  - Build all targets marked with [*]'
  	@echo  '* vmlinux	  - Build the bare kernel'
  	@echo  '* modules	  - Build all modules'
9cc5d74c8   Bodo Eggert   kbuild: document ...
1158
  	@echo  '  modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
88ecf814c   David Woodhouse   firmware: Add fir...
1159
1160
  	@echo  '  firmware_install- Install all firmware to INSTALL_FW_PATH'
  	@echo  '                    (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1161
1162
  	@echo  '  dir/            - Build all files in dir and below'
  	@echo  '  dir/file.[ois]  - Build specified target only'
155ad605b   Sam Ravnborg   [PATCH] kbuild: b...
1163
  	@echo  '  dir/file.ko     - Build module including final link'
243f40cec   Valdis Kletnieks   kbuild: document ...
1164
  	@echo  '  prepare         - Set up for building external modules'
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1165
1166
  	@echo  '  tags/TAGS	  - Generate tags file for editors'
  	@echo  '  cscope	  - Generate cscope index'
6d1288425   Zach Brown   [PATCH] kbuild: a...
1167
  	@echo  '  kernelrelease	  - Output the release version string'
cb58455c4   Sam Ravnborg   kbuild: KERNELREL...
1168
  	@echo  '  kernelversion	  - Output the version stored in Makefile'
91e034eff   Thomas Gleixner   x86: Fix the $(AR...
1169
  	@if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \
f17b7bad3   David Woodhouse   Don't advertise (...
1170
  	 echo  '  headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
59df3230f   Geert Uytterhoeven   [PATCH] `make hel...
1171
  	 echo  '                    (default: $(INSTALL_HDR_PATH))'; \
f17b7bad3   David Woodhouse   Don't advertise (...
1172
  	 fi
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1173
1174
  	@echo  ''
  	@echo  'Static analysers'
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1175
1176
  	@echo  '  checkstack      - Generate a list of stack hogs'
  	@echo  '  namespacecheck  - Name space analysis on compiled kernel'
aa025e7d5   Sam Ravnborg   kbuild: document ...
1177
  	@echo  '  versioncheck    - Sanity check on version.h usage'
ec2d987f9   Randy Dunlap   kbuild: add 'incl...
1178
  	@echo  '  includecheck    - Check for duplicate included header files'
295ac0518   Adrian Bunk   kbuild: call expo...
1179
  	@echo  '  export_report   - List the usages of all exported symbols'
91e034eff   Thomas Gleixner   x86: Fix the $(AR...
1180
  	@if [ -r $(srctree)/include/asm-$(SRCARCH)/Kbuild ]; then \
f17b7bad3   David Woodhouse   Don't advertise (...
1181
1182
  	 echo  '  headers_check   - Sanity check on exported headers'; \
  	 fi
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1183
1184
  	@echo  ''
  	@echo  'Kernel packaging:'
6c2133e11   Sam Ravnborg   kbuild: fix make ...
1185
  	@$(MAKE) $(build)=$(package-dir) help
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1186
1187
1188
1189
  	@echo  ''
  	@echo  'Documentation targets:'
  	@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
  	@echo  ''
01dee1881   Andres Salomon   kbuild: fix help ...
1190
  	@echo  'Architecture specific targets ($(SRCARCH)):'
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1191
  	@$(if $(archhelp),$(archhelp),\
01dee1881   Andres Salomon   kbuild: fix help ...
1192
  		echo '  No architecture specific help defined for $(SRCARCH)')
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1193
1194
1195
1196
1197
1198
  	@echo  ''
  	@$(if $(boards), \
  		$(foreach b, $(boards), \
  		printf "  %-24s - Build for %s\
  " $(b) $(subst _defconfig,,$(b));) \
  		echo '')
5dffbe811   Segher Boessenkool   kbuild: show defc...
1199
1200
1201
1202
1203
1204
1205
  	@$(if $(board-dirs), \
  		$(foreach b, $(board-dirs), \
  		printf "  %-16s - Show %s-specific targets\
  " help-$(b) $(b);) \
  		printf "  %-16s - Show all of the above\
  " help-boards; \
  		echo '')
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1206
1207
  
  	@echo  '  make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
45d506bd6   Sam Ravnborg   kbuild: make V=2 ...
1208
  	@echo  '  make V=2   [targets] 2 => give reason for rebuild of target'
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1209
  	@echo  '  make O=dir [targets] Locate all output files in "dir", including .config'
701842e3b   Dustin Kirkland   kbuild: documenta...
1210
1211
  	@echo  '  make C=1   [targets] Check all c source with $$CHECK (sparse by default)'
  	@echo  '  make C=2   [targets] Force check of all c source with $$CHECK'
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1212
1213
1214
  	@echo  ''
  	@echo  'Execute "make" or "make all" to build all targets marked with [*] '
  	@echo  'For further info see the ./README file'
5dffbe811   Segher Boessenkool   kbuild: show defc...
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
  help-board-dirs := $(addprefix help-,$(board-dirs))
  
  help-boards: $(help-board-dirs)
  
  boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))
  
  $(help-board-dirs): help-%:
  	@echo  'Architecture specific targets ($(SRCARCH) $*):'
  	@$(if $(boards-per-dir), \
  		$(foreach b, $(boards-per-dir), \
  		printf "  %-24s - Build for %s\
  " $*/$(b) $(subst _defconfig,,$(b));) \
  		echo '')
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
  # Documentation targets
  # ---------------------------------------------------------------------------
  %docs: scripts_basic FORCE
  	$(Q)$(MAKE) $(build)=Documentation/DocBook $@
  
  else # KBUILD_EXTMOD
  
  ###
  # External module support.
  # When building external modules the kernel used as basis is considered
  # read-only, and no consistency checks are made and the make
  # system is not used on the basis kernel. If updates are required
  # in the basis kernel ordinary make commands (without M=...) must
  # be used.
  #
  # The following are the only valid targets when building external
  # modules.
  # make M=dir clean     Delete all automatically generated files
  # make M=dir modules   Make all modules in specified dir
  # make M=dir	       Same as 'make M=dir modules'
  # make M=dir modules_install
070b98bfd   Sam Ravnborg   kbuild: trivial f...
1249
  #                      Install the modules built in the module directory
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1250
1251
1252
1253
  #                      Assumes install directory is already created
  
  # We are always building modules
  KBUILD_MODULES := 1
4f1933620   Paul Smith   kbuild: change kb...
1254
  PHONY += crmodverdir
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1255
  crmodverdir:
7bb9d092d   Sam Ravnborg   kbuild: fix first...
1256
  	$(cmd_crmodverdir)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1257

4f1933620   Paul Smith   kbuild: change kb...
1258
  PHONY += $(objtree)/Module.symvers
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1259
1260
1261
1262
1263
1264
1265
1266
  $(objtree)/Module.symvers:
  	@test -e $(objtree)/Module.symvers || ( \
  	echo; \
  	echo "  WARNING: Symbol version dump $(objtree)/Module.symvers"; \
  	echo "           is missing; modules will have no dependencies and modversions."; \
  	echo )
  
  module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))
4f1933620   Paul Smith   kbuild: change kb...
1267
  PHONY += $(module-dirs) modules
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1268
1269
1270
1271
1272
  $(module-dirs): crmodverdir $(objtree)/Module.symvers
  	$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
  
  modules: $(module-dirs)
  	@echo '  Building modules, stage 2.';
b805aa0e7   Sam Ravnborg   kbuild: make -rR ...
1273
  	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1274

4f1933620   Paul Smith   kbuild: change kb...
1275
  PHONY += modules_install
a67dc21a3   Sam Ravnborg   kbuild: run depmo...
1276
  modules_install: _emodinst_ _emodinst_post
e63046630   Adrian Bunk   kbuild: remove a ...
1277

4f1933620   Paul Smith   kbuild: change kb...
1278
1279
  install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
  PHONY += _emodinst_
a67dc21a3   Sam Ravnborg   kbuild: run depmo...
1280
  _emodinst_:
a67dc21a3   Sam Ravnborg   kbuild: run depmo...
1281
  	$(Q)mkdir -p $(MODLIB)/$(install-dir)
b805aa0e7   Sam Ravnborg   kbuild: make -rR ...
1282
  	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1283

4f1933620   Paul Smith   kbuild: change kb...
1284
  PHONY += _emodinst_post
a67dc21a3   Sam Ravnborg   kbuild: run depmo...
1285
1286
  _emodinst_post: _emodinst_
  	$(call cmd,depmod)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1287
  clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
4f1933620   Paul Smith   kbuild: change kb...
1288
  PHONY += $(clean-dirs) clean
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1289
1290
1291
1292
  $(clean-dirs):
  	$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
  
  clean:	rm-dirs := $(MODVERDIR)
c34114f4a   Mike Frysinger   kbuild: clean Mod...
1293
  clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1294
1295
  clean: $(clean-dirs)
  	$(call cmd,rmdirs)
c34114f4a   Mike Frysinger   kbuild: clean Mod...
1296
  	$(call cmd,rmfiles)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1297
  	@find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \
070b98bfd   Sam Ravnborg   kbuild: trivial f...
1298
  		\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
  		-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \
  		-type f -print | xargs rm -f
  
  help:
  	@echo  '  Building external modules.'
  	@echo  '  Syntax: make -C path/to/kernel/src M=$$PWD target'
  	@echo  ''
  	@echo  '  modules         - default target, build the module(s)'
  	@echo  '  modules_install - install the module'
  	@echo  '  clean           - remove generated files in module directory only'
  	@echo  ''
06300b21f   Sam Ravnborg   kbuild: support b...
1310
1311
  
  # Dummies...
4f1933620   Paul Smith   kbuild: change kb...
1312
  PHONY += prepare scripts
06300b21f   Sam Ravnborg   kbuild: support b...
1313
1314
  prepare: ;
  scripts: ;
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1315
1316
1317
1318
1319
1320
1321
1322
  endif # KBUILD_EXTMOD
  
  # Generate tags for editors
  # ---------------------------------------------------------------------------
  
  #We want __srctree to totally vanish out when KBUILD_OUTPUT is not set
  #(which is the most common case IMHO) to avoid unneeded clutter in the big tags file.
  #Adding $(srctree) adds about 20M on i386 to the size of the output file!
f182ae626   George Anzinger   [PATCH] kbuild: b...
1323
  ifeq ($(src),$(obj))
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1324
1325
1326
1327
  __srctree =
  else
  __srctree = $(srctree)/
  endif
2ab23c95a   Paolo 'Blaisorblade' Giarrusso   [PATCH] Kbuild: i...
1328
1329
1330
1331
  ifeq ($(ALLSOURCE_ARCHS),)
  ifeq ($(ARCH),um)
  ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH)
  else
2eb4c9509   Thomas Gleixner   Kbuild: prepare s...
1332
  ALLINCLUDE_ARCHS := $(SRCARCH)
2ab23c95a   Paolo 'Blaisorblade' Giarrusso   [PATCH] Kbuild: i...
1333
1334
  endif
  else
d384e35a2   Linus Nilsson   Makefile: Change ...
1335
  #Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behaviour.
2ab23c95a   Paolo 'Blaisorblade' Giarrusso   [PATCH] Kbuild: i...
1336
1337
  ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
  endif
d0974b11e   Thomas Gleixner   Remove x86 merge ...
1338
  ALLSOURCE_ARCHS := $(SRCARCH)
a0674e88d   Ian Campbell   [PATCH] kbuild: a...
1339

e838db685   Masatake YAMATO   kbuild: adding sy...
1340
  define find-sources
f8bea58b6   Yinghai Lu   kbuild: fix typo ...
1341
1342
          ( for arch in $(ALLSOURCE_ARCHS) ; do \
  	       find $(__srctree)arch/$${arch} $(RCS_FIND_IGNORE) \
e838db685   Masatake YAMATO   kbuild: adding sy...
1343
  	            -name $1 -print; \
a0674e88d   Ian Campbell   [PATCH] kbuild: a...
1344
  	  done ; \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1345
  	  find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \
e838db685   Masatake YAMATO   kbuild: adding sy...
1346
  	       -name $1 -print; \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1347
1348
  	  find $(__srctree)include $(RCS_FIND_IGNORE) \
  	       \( -name config -o -name 'asm-*' \) -prune \
e838db685   Masatake YAMATO   kbuild: adding sy...
1349
  	       -o -name $1 -print; \
f8bea58b6   Yinghai Lu   kbuild: fix typo ...
1350
1351
  	  for arch in $(ALLINCLUDE_ARCHS) ; do \
  	       find $(__srctree)include/asm-$${arch} $(RCS_FIND_IGNORE) \
e838db685   Masatake YAMATO   kbuild: adding sy...
1352
  	            -name $1 -print; \
a0674e88d   Ian Campbell   [PATCH] kbuild: a...
1353
  	  done ; \
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1354
  	  find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \
dd7e54ade   Don Mullis   kbuild: move tags...
1355
1356
  	       -name $1 -print; \
  	  find $(__srctree) $(RCS_FIND_IGNORE) \
37ab7a269   Yinghai Lu   kbuild: cscope - ...
1357
  	       \( -name include -o -name arch -o -name '.tmp_*' \) -prune -o \
dd7e54ade   Don Mullis   kbuild: move tags...
1358
1359
  	       -name $1 -print; \
  	  )
e838db685   Masatake YAMATO   kbuild: adding sy...
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
  endef
  
  define all-sources
  	$(call find-sources,'*.[chS]')
  endef
  define all-kconfigs
  	$(call find-sources,'Kconfig*')
  endef
  define all-defconfigs
  	$(call find-sources,'defconfig')
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1370
  endef
da7c04083   Aron Griffis   kbuild: Extend kb...
1371
1372
1373
1374
  define xtags
  	if $1 --version 2>&1 | grep -iq exuberant; then \
  	    $(all-sources) | xargs $1 -a \
  		-I __initdata,__exitdata,__acquires,__releases \
2c81210a2   Uwe Kleine-König   kbuild: ignore ca...
1375
  		-I __read_mostly,____cacheline_aligned,____cacheline_aligned_in_smp,____cacheline_internodealigned_in_smp \
da7c04083   Aron Griffis   kbuild: Extend kb...
1376
  		-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
91b943ee4   Aneesh Kumar K.V   [PATCH] Add entry...
1377
  		--extra=+f --c-kinds=+px \
a412c1723   Aneesh Kumar K.V   kbuild: fix the w...
1378
  		--regex-asm='/^ENTRY\(([^)]*)\).*/\1/'; \
da7c04083   Aron Griffis   kbuild: Extend kb...
1379
1380
1381
  	    $(all-kconfigs) | xargs $1 -a \
  		--langdef=kconfig \
  		--language-force=kconfig \
80ff26241   Alexey Dobriyan   kbuild: add kconf...
1382
  		--regex-kconfig='/^[[:blank:]]*(menu|)config[[:blank:]]+([[:alnum:]_]+)/\2/'; \
18e39913d   David Gibson   [PATCH] Fix spuri...
1383
  	    $(all-defconfigs) | xargs -r $1 -a \
da7c04083   Aron Griffis   kbuild: Extend kb...
1384
1385
1386
1387
1388
1389
  		--langdef=dotconfig \
  		--language-force=dotconfig \
  		--regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'; \
  	elif $1 --version 2>&1 | grep -iq emacs; then \
  	    $(all-sources) | xargs $1 -a; \
  	    $(all-kconfigs) | xargs $1 -a \
a95bcfac2   Masatake YAMATO   kbuild: escape me...
1390
  		--regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/'; \
18e39913d   David Gibson   [PATCH] Fix spuri...
1391
  	    $(all-defconfigs) | xargs -r $1 -a \
da7c04083   Aron Griffis   kbuild: Extend kb...
1392
1393
1394
1395
1396
  		--regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \
  	else \
  	    $(all-sources) | xargs $1 -a; \
  	fi
  endef
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1397
  quiet_cmd_cscope-file = FILELST cscope.files
acbef459a   Karl Hegbloom   [PATCH] kbuild: m...
1398
        cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1399
1400
  
  quiet_cmd_cscope = MAKE    cscope.out
acbef459a   Karl Hegbloom   [PATCH] kbuild: m...
1401
        cmd_cscope = cscope -b
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1402
1403
1404
1405
1406
1407
  
  cscope: FORCE
  	$(call cmd,cscope-file)
  	$(call cmd,cscope)
  
  quiet_cmd_TAGS = MAKE   $@
66d609ec8   Sam Ravnborg   kbuild: fix make ...
1408
1409
  define cmd_TAGS
  	rm -f $@; \
da7c04083   Aron Griffis   kbuild: Extend kb...
1410
  	$(call xtags,etags)
66d609ec8   Sam Ravnborg   kbuild: fix make ...
1411
1412
1413
1414
  endef
  
  TAGS: FORCE
  	$(call cmd,TAGS)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1415

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1416
1417
1418
  quiet_cmd_tags = MAKE   $@
  define cmd_tags
  	rm -f $@; \
da7c04083   Aron Griffis   kbuild: Extend kb...
1419
  	$(call xtags,ctags)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1420
  endef
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1421
1422
1423
1424
1425
1426
  tags: FORCE
  	$(call cmd,tags)
  
  
  # Scripts to check various things for consistency
  # ---------------------------------------------------------------------------
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1427
1428
1429
  includecheck:
  	find * $(RCS_FIND_IGNORE) \
  		-name '*.[hcS]' -type f -print | sort \
800074345   Geert Uytterhoeven   kbuild: Add missi...
1430
  		| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1431
1432
1433
1434
  
  versioncheck:
  	find * $(RCS_FIND_IGNORE) \
  		-name '*.[hcS]' -type f -print | sort \
800074345   Geert Uytterhoeven   kbuild: Add missi...
1435
  		| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1436

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1437
1438
  namespacecheck:
  	$(PERL) $(srctree)/scripts/namespace.pl
295ac0518   Adrian Bunk   kbuild: call expo...
1439
1440
  export_report:
  	$(PERL) $(srctree)/scripts/export_report.pl
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1441
1442
  endif #ifeq ($(config-targets),1)
  endif #ifeq ($(mixed-targets),1)
c30a02e02   Roman Zippel   kbuild: `make ker...
1443
  PHONY += checkstack kernelrelease kernelversion
e3ccf6e36   Jeff Dike   [PATCH] uml: add ...
1444

011e3a9ad   Jeff Dike   [PATCH] Fix cross...
1445
1446
1447
1448
1449
1450
1451
1452
1453
  # UML needs a little special treatment here.  It wants to use the host
  # toolchain, so needs $(SUBARCH) passed to checkstack.pl.  Everyone
  # else wants $(ARCH), including people doing cross-builds, which means
  # that $(SUBARCH) doesn't work here.
  ifeq ($(ARCH), um)
  CHECKSTACK_ARCH := $(SUBARCH)
  else
  CHECKSTACK_ARCH := $(ARCH)
  endif
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1454
1455
  checkstack:
  	$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \
011e3a9ad   Jeff Dike   [PATCH] Fix cross...
1456
  	$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1457
1458
  
  kernelrelease:
f1d28fb04   Roman Zippel   kconfig: move .ke...
1459
1460
  	$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \
  	$(error kernelrelease not valid - run 'make prepare' to update it))
cb58455c4   Sam Ravnborg   kbuild: KERNELREL...
1461
  kernelversion:
2244cbd8a   Sam Ravnborg   kbuild: create .k...
1462
  	@echo $(KERNELVERSION)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1463

06300b21f   Sam Ravnborg   kbuild: support b...
1464
1465
  # Single targets
  # ---------------------------------------------------------------------------
bc2546a67   Sam Ravnborg   kbuild: fix build...
1466
  # Single targets are compatible with:
e1b8513d2   Robert P. J. Day   Typoes: "whith" ...
1467
  # - build with mixed source and output
bc2546a67   Sam Ravnborg   kbuild: fix build...
1468
1469
1470
1471
1472
1473
1474
  # - build with separate output dir 'make O=...'
  # - external modules
  #
  #  target-dir => where to store outputfile
  #  build-dir  => directory in kernel source tree to use
  
  ifeq ($(KBUILD_EXTMOD),)
aa360879e   Sam Ravnborg   kbuild: fix make ...
1475
          build-dir  = $(patsubst %/,%,$(dir $@))
bc2546a67   Sam Ravnborg   kbuild: fix build...
1476
1477
1478
1479
1480
1481
          target-dir = $(dir $@)
  else
          zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
          build-dir  = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
          target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))
  endif
f6ecebd65   Sam Ravnborg   kbuild: fix make ...
1482
  %.s: %.c prepare scripts FORCE
bc2546a67   Sam Ravnborg   kbuild: fix build...
1483
  	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
f6ecebd65   Sam Ravnborg   kbuild: fix make ...
1484
  %.i: %.c prepare scripts FORCE
bc2546a67   Sam Ravnborg   kbuild: fix build...
1485
  	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
f6ecebd65   Sam Ravnborg   kbuild: fix make ...
1486
  %.o: %.c prepare scripts FORCE
bc2546a67   Sam Ravnborg   kbuild: fix build...
1487
  	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
f6ecebd65   Sam Ravnborg   kbuild: fix make ...
1488
  %.lst: %.c prepare scripts FORCE
bc2546a67   Sam Ravnborg   kbuild: fix build...
1489
  	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
f6ecebd65   Sam Ravnborg   kbuild: fix make ...
1490
  %.s: %.S prepare scripts FORCE
bc2546a67   Sam Ravnborg   kbuild: fix build...
1491
  	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
f6ecebd65   Sam Ravnborg   kbuild: fix make ...
1492
  %.o: %.S prepare scripts FORCE
bc2546a67   Sam Ravnborg   kbuild: fix build...
1493
  	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
15fde6751   Andreas Gruenbacher   kbuild: support f...
1494
1495
  %.symtypes: %.c prepare scripts FORCE
  	$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
06300b21f   Sam Ravnborg   kbuild: support b...
1496

bc2546a67   Sam Ravnborg   kbuild: fix build...
1497
1498
  # Modules
  / %/: prepare scripts FORCE
7bb9d092d   Sam Ravnborg   kbuild: fix first...
1499
  	$(cmd_crmodverdir)
06300b21f   Sam Ravnborg   kbuild: support b...
1500
  	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
bc2546a67   Sam Ravnborg   kbuild: fix build...
1501
1502
  	$(build)=$(build-dir)
  %.ko: prepare scripts FORCE
7bb9d092d   Sam Ravnborg   kbuild: fix first...
1503
  	$(cmd_crmodverdir)
06300b21f   Sam Ravnborg   kbuild: support b...
1504
  	$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1)   \
bc2546a67   Sam Ravnborg   kbuild: fix build...
1505
  	$(build)=$(build-dir) $(@:.ko=.o)
b805aa0e7   Sam Ravnborg   kbuild: make -rR ...
1506
  	$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
06300b21f   Sam Ravnborg   kbuild: support b...
1507

1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1508
1509
1510
1511
1512
1513
1514
1515
  # FIXME Should go into a make.lib or something 
  # ===========================================================================
  
  quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN   $(wildcard $(rm-dirs)))
        cmd_rmdirs = rm -rf $(rm-dirs)
  
  quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN   $(wildcard $(rm-files)))
        cmd_rmfiles = rm -f $(rm-files)
bc3c26fe6   Uwe Kleine-König   fix typo "is" -> ...
1516
  # Run depmod only if we have System.map and depmod is executable
50a8ec31c   Sam Ravnborg   kbuild: disable d...
1517
1518
  quiet_cmd_depmod = DEPMOD  $(KERNELRELEASE)
        cmd_depmod = \
d8d2e78a0   Sam Ravnborg   kbuild: allow dep...
1519
  	if [ -r System.map -a -x $(DEPMOD) ]; then                              \
50a8ec31c   Sam Ravnborg   kbuild: disable d...
1520
1521
1522
1523
  		$(DEPMOD) -ae -F System.map                                     \
  		$(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) -r)   \
  		$(KERNELRELEASE);                                               \
  	fi
7bb9d092d   Sam Ravnborg   kbuild: fix first...
1524
  # Create temporary dir for module support files
ab19f8794   Sam Ravnborg   kbuild: fix modul...
1525
1526
1527
  # clean it up only when building all modules
  cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
                    $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1528

222d394d3   Sam Ravnborg   kbuild: enable 'm...
1529
  a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \
06c5040cd   Sam Ravnborg   kbuild: enable 'm...
1530
  	  $(NOSTDINC_FLAGS) $(KBUILD_CPPFLAGS) \
5e8d780d7   Sam Ravnborg   kbuild: fix ia64 ...
1531
  	  $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
  
  quiet_cmd_as_o_S = AS      $@
  cmd_as_o_S       = $(CC) $(a_flags) -c -o $@ $<
  
  # read all saved command lines
  
  targets := $(wildcard $(sort $(targets)))
  cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd))
  
  ifneq ($(cmd_files),)
    $(cmd_files): ;	# Do not try to update included dependency files
    include $(cmd_files)
  endif
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1545
1546
1547
1548
  # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir
  # Usage:
  # $(Q)$(MAKE) $(clean)=dir
  clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1549
  endif	# skip-makefile
4f1933620   Paul Smith   kbuild: change kb...
1550
  PHONY += FORCE
1da177e4c   Linus Torvalds   Linux-2.6.12-rc2
1551
  FORCE:
4f1933620   Paul Smith   kbuild: change kb...
1552

4f1933620   Paul Smith   kbuild: change kb...
1553
1554
1555
  # Declare the contents of the .PHONY variable as phony.  We keep that
  # information in a variable se we can use it in if_changed and friends.
  .PHONY: $(PHONY)