Eric Lee / smarc-ti-linux-kernel

1

VERSION = 2

1

VERSION = 2

2

PATCHLEVEL = 6

2

PATCHLEVEL = 6

3

SUBLEVEL = 29

3

SUBLEVEL = 29

4

EXTRAVERSION = -rc1

4

EXTRAVERSION = -rc2

5

NAME = Erotic Pickled Herring

5

NAME = Erotic Pickled Herring

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

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

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

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

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

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

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

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

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

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

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

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

111

# Cancel implicit rules on top Makefile

111

# Cancel implicit rules on top Makefile

112

$(CURDIR)/Makefile Makefile: ;

112

$(CURDIR)/Makefile Makefile: ;

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

122

PHONY += $(MAKECMDGOALS) sub-make

122

PHONY += $(MAKECMDGOALS) sub-make

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

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

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

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

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

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

157

VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))

157

VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD))

158

159

export srctree objtree VPATH TOPDIR

159

export srctree objtree VPATH TOPDIR

160

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

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

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

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

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

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

208

# Additional ARCH settings for sparc

208

# Additional ARCH settings for sparc

209

ifeq ($(ARCH),sparc64)

209

ifeq ($(ARCH),sparc64)

210

SRCARCH := sparc

210

SRCARCH := sparc

211

endif

211

endif

212

213

# Where to locate arch specific headers

213

# Where to locate arch specific headers

214

hdr-arch := $(SRCARCH)

214

hdr-arch := $(SRCARCH)

215

216

KCONFIG_CONFIG ?= .config

216

KCONFIG_CONFIG ?= .config

217

218

# SHELL used by kbuild

218

# SHELL used by kbuild

219

CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \

219

CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \

220

else if [ -x /bin/bash ]; then echo /bin/bash; \

220

else if [ -x /bin/bash ]; then echo /bin/bash; \

221

else echo sh; fi ; fi)

221

else echo sh; fi ; fi)

222

223

HOSTCC = gcc

223

HOSTCC = gcc

224

HOSTCXX = g++

224

HOSTCXX = g++

225

HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer

225

HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer

226

HOSTCXXFLAGS = -O2

226

HOSTCXXFLAGS = -O2

227

228

# Decide whether to build built-in, modular, or both.

228

# Decide whether to build built-in, modular, or both.

229

# Normally, just do built-in.

229

# Normally, just do built-in.

230

231

KBUILD_MODULES :=

231

KBUILD_MODULES :=

232

KBUILD_BUILTIN := 1

232

KBUILD_BUILTIN := 1

233

234

# If we have only "make modules", don't compile built-in objects.

234

# If we have only "make modules", don't compile built-in objects.

235

# When we're building modules with modversions, we need to consider

235

# When we're building modules with modversions, we need to consider

236

# the built-in objects during the descend as well, in order to

236

# the built-in objects during the descend as well, in order to

237

# make sure the checksums are up to date before we record them.

237

# make sure the checksums are up to date before we record them.

238

239

ifeq ($(MAKECMDGOALS),modules)

239

ifeq ($(MAKECMDGOALS),modules)

240

KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)

240

KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1)

241

endif

241

endif

242

243

# If we have "make <whatever> modules", compile modules

243

# If we have "make <whatever> modules", compile modules

244

# in addition to whatever we do anyway.

244

# in addition to whatever we do anyway.

245

# Just "make" or "make all" shall build modules as well

245

# Just "make" or "make all" shall build modules as well

246

247

ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)

247

ifneq ($(filter all _all modules,$(MAKECMDGOALS)),)

248

KBUILD_MODULES := 1

248

KBUILD_MODULES := 1

249

endif

249

endif

250

251

ifeq ($(MAKECMDGOALS),)

251

ifeq ($(MAKECMDGOALS),)

252

KBUILD_MODULES := 1

252

KBUILD_MODULES := 1

253

endif

253

endif

254

255

export KBUILD_MODULES KBUILD_BUILTIN

255

export KBUILD_MODULES KBUILD_BUILTIN

256

export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD

256

export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD

257

258

# Beautify output

258

# Beautify output

259

# ---------------------------------------------------------------------------

259

# ---------------------------------------------------------------------------

260

#

260

#

261

# Normally, we echo the whole command before executing it. By making

261

# Normally, we echo the whole command before executing it. By making

262

# that echo $($(quiet)$(cmd)), we now have the possibility to set

262

# that echo $($(quiet)$(cmd)), we now have the possibility to set

263

# $(quiet) to choose other forms of output instead, e.g.

263

# $(quiet) to choose other forms of output instead, e.g.

264

#

264

#

265

# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@

265

# quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@

266

# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<

266

# cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<

267

#

267

#

268

# If $(quiet) is empty, the whole command will be printed.

268

# If $(quiet) is empty, the whole command will be printed.

269

# If it is set to "quiet_", only the short version will be printed.

269

# If it is set to "quiet_", only the short version will be printed.

270

# If it is set to "silent_", nothing will be printed at all, since

270

# If it is set to "silent_", nothing will be printed at all, since

271

# the variable $(silent_cmd_cc_o_c) doesn't exist.

271

# the variable $(silent_cmd_cc_o_c) doesn't exist.

272

#

272

#

273

# A simple variant is to prefix commands with $(Q) - that's useful

273

# A simple variant is to prefix commands with $(Q) - that's useful

274

# for commands that shall be hidden in non-verbose mode.

274

# for commands that shall be hidden in non-verbose mode.

275

#

275

#

276

# $(Q)ln $@ :<

276

# $(Q)ln $@ :<

277

#

277

#

278

# If KBUILD_VERBOSE equals 0 then the above command will be hidden.

278

# If KBUILD_VERBOSE equals 0 then the above command will be hidden.

279

# If KBUILD_VERBOSE equals 1 then the above command is displayed.

279

# If KBUILD_VERBOSE equals 1 then the above command is displayed.

280

281

ifeq ($(KBUILD_VERBOSE),1)

281

ifeq ($(KBUILD_VERBOSE),1)

282

quiet =

282

quiet =

283

Q =

283

Q =

284

else

284

else

285

quiet=quiet_

285

quiet=quiet_

286

Q = @

286

Q = @

287

endif

287

endif

288

289

# If the user is running make -s (silent mode), suppress echoing of

289

# If the user is running make -s (silent mode), suppress echoing of

290

# commands

290

# commands

291

292

ifneq ($(findstring s,$(MAKEFLAGS)),)

292

ifneq ($(findstring s,$(MAKEFLAGS)),)

293

quiet=silent_

293

quiet=silent_

294

endif

294

endif

295

296

export quiet Q KBUILD_VERBOSE

296

export quiet Q KBUILD_VERBOSE

297

298

299

# Look for make include files relative to root of kernel src

299

# Look for make include files relative to root of kernel src

300

MAKEFLAGS += --include-dir=$(srctree)

300

MAKEFLAGS += --include-dir=$(srctree)

301

302

# We need some generic definitions (do not try to remake the file).

302

# We need some generic definitions (do not try to remake the file).

303

$(srctree)/scripts/Kbuild.include: ;

303

$(srctree)/scripts/Kbuild.include: ;

304

include $(srctree)/scripts/Kbuild.include

304

include $(srctree)/scripts/Kbuild.include

305

306

# Make variables (CC, etc...)

306

# Make variables (CC, etc...)

307

308

AS = $(CROSS_COMPILE)as

308

AS = $(CROSS_COMPILE)as

309

LD = $(CROSS_COMPILE)ld

309

LD = $(CROSS_COMPILE)ld

310

CC = $(CROSS_COMPILE)gcc

310

CC = $(CROSS_COMPILE)gcc

311

CPP = $(CC) -E

311

CPP = $(CC) -E

312

AR = $(CROSS_COMPILE)ar

312

AR = $(CROSS_COMPILE)ar

313

NM = $(CROSS_COMPILE)nm

313

NM = $(CROSS_COMPILE)nm

314

STRIP = $(CROSS_COMPILE)strip

314

STRIP = $(CROSS_COMPILE)strip

315

OBJCOPY = $(CROSS_COMPILE)objcopy

315

OBJCOPY = $(CROSS_COMPILE)objcopy

316

OBJDUMP = $(CROSS_COMPILE)objdump

316

OBJDUMP = $(CROSS_COMPILE)objdump

317

AWK = awk

317

AWK = awk

318

GENKSYMS = scripts/genksyms/genksyms

318

GENKSYMS = scripts/genksyms/genksyms

319

DEPMOD = /sbin/depmod

319

DEPMOD = /sbin/depmod

320

KALLSYMS = scripts/kallsyms

320

KALLSYMS = scripts/kallsyms

321

PERL = perl

321

PERL = perl

322

CHECK = sparse

322

CHECK = sparse

323

324

CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \

324

CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \

325

-Wbitwise -Wno-return-void $(CF)

325

-Wbitwise -Wno-return-void $(CF)

326

MODFLAGS = -DMODULE

326

MODFLAGS = -DMODULE

327

CFLAGS_MODULE = $(MODFLAGS)

327

CFLAGS_MODULE = $(MODFLAGS)

328

AFLAGS_MODULE = $(MODFLAGS)

328

AFLAGS_MODULE = $(MODFLAGS)

329

LDFLAGS_MODULE =

329

LDFLAGS_MODULE =

330

CFLAGS_KERNEL =

330

CFLAGS_KERNEL =

331

AFLAGS_KERNEL =

331

AFLAGS_KERNEL =

332

333

334

# Use LINUXINCLUDE when you must reference the include/ directory.

334

# Use LINUXINCLUDE when you must reference the include/ directory.

335

# Needed to be compatible with the O= option

335

# Needed to be compatible with the O= option

336

LINUXINCLUDE := -Iinclude \

336

LINUXINCLUDE := -Iinclude \

337

$(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \

337

$(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \

338

-I$(srctree)/arch/$(hdr-arch)/include \

338

-I$(srctree)/arch/$(hdr-arch)/include \

339

-include include/linux/autoconf.h

339

-include include/linux/autoconf.h

340

341

KBUILD_CPPFLAGS := -D__KERNEL__

341

KBUILD_CPPFLAGS := -D__KERNEL__

342

343

KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \

343

KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \

344

-fno-strict-aliasing -fno-common \

344

-fno-strict-aliasing -fno-common \

345

-Werror-implicit-function-declaration

345

-Werror-implicit-function-declaration

346

KBUILD_AFLAGS := -D__ASSEMBLY__

346

KBUILD_AFLAGS := -D__ASSEMBLY__

347

348

# Read KERNELRELEASE from include/config/kernel.release (if it exists)

348

# Read KERNELRELEASE from include/config/kernel.release (if it exists)

349

KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)

349

KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)

350

KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)

350

KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)

351

352

export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION

352

export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION

353

export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC

353

export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC

354

export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE

354

export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE

355

export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS

355

export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS

356

357

export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS

357

export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS

358

export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE

358

export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE

359

export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE

359

export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE

360

361

# When compiling out-of-tree modules, put MODVERDIR in the module

361

# When compiling out-of-tree modules, put MODVERDIR in the module

362

# tree rather than in the kernel tree. The kernel tree might

362

# tree rather than in the kernel tree. The kernel tree might

363

# even be read-only.

363

# even be read-only.

364

export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions

364

export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions

365

366

# Files to ignore in find ... statements

366

# Files to ignore in find ... statements

367

368

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

368

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

369

export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git

369

export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git

370

371

# ===========================================================================

371

# ===========================================================================

372

# Rules shared between *config targets and build targets

372

# Rules shared between *config targets and build targets

373

374

# Basic helpers built in scripts/

374

# Basic helpers built in scripts/

375

PHONY += scripts_basic

375

PHONY += scripts_basic

376

scripts_basic:

376

scripts_basic:

377

$(Q)$(MAKE) $(build)=scripts/basic

377

$(Q)$(MAKE) $(build)=scripts/basic

378

379

# To avoid any implicit rule to kick in, define an empty command.

379

# To avoid any implicit rule to kick in, define an empty command.

380

scripts/basic/%: scripts_basic ;

380

scripts/basic/%: scripts_basic ;

381

382

PHONY += outputmakefile

382

PHONY += outputmakefile

383

# outputmakefile generates a Makefile in the output directory, if using a

383

# outputmakefile generates a Makefile in the output directory, if using a

384

# separate output directory. This allows convenient use of make in the

384

# separate output directory. This allows convenient use of make in the

385

# output directory.

385

# output directory.

386

outputmakefile:

386

outputmakefile:

387

ifneq ($(KBUILD_SRC),)

387

ifneq ($(KBUILD_SRC),)

388

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \

388

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \

389

$(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)

389

$(srctree) $(objtree) $(VERSION) $(PATCHLEVEL)

390

endif

390

endif

391

392

# To make sure we do not include .config for any of the *config targets

392

# To make sure we do not include .config for any of the *config targets

393

# catch them early, and hand them over to scripts/kconfig/Makefile

393

# catch them early, and hand them over to scripts/kconfig/Makefile

394

# It is allowed to specify more targets when calling make, including

394

# It is allowed to specify more targets when calling make, including

395

# mixing *config targets and build targets.

395

# mixing *config targets and build targets.

396

# For example 'make oldconfig all'.

396

# For example 'make oldconfig all'.

397

# Detect when mixed targets is specified, and make a second invocation

397

# Detect when mixed targets is specified, and make a second invocation

398

# of make so .config is not included in this case either (for *config).

398

# of make so .config is not included in this case either (for *config).

399

400

no-dot-config-targets := clean mrproper distclean \

400

no-dot-config-targets := clean mrproper distclean \

401

cscope TAGS tags help %docs check% \

401

cscope TAGS tags help %docs check% \

402

include/linux/version.h headers_% \

402

include/linux/version.h headers_% \

403

kernelrelease kernelversion

403

kernelrelease kernelversion

404

405

config-targets := 0

405

config-targets := 0

406

mixed-targets := 0

406

mixed-targets := 0

407

dot-config := 1

407

dot-config := 1

408

409

ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)

409

ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),)

410

ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)

410

ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),)

411

dot-config := 0

411

dot-config := 0

412

endif

412

endif

413

endif

413

endif

414

415

ifeq ($(KBUILD_EXTMOD),)

415

ifeq ($(KBUILD_EXTMOD),)

416

ifneq ($(filter config %config,$(MAKECMDGOALS)),)

416

ifneq ($(filter config %config,$(MAKECMDGOALS)),)

417

config-targets := 1

417

config-targets := 1

418

ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)

418

ifneq ($(filter-out config %config,$(MAKECMDGOALS)),)

419

mixed-targets := 1

419

mixed-targets := 1

420

endif

420

endif

421

endif

421

endif

422

endif

422

endif

423

424

ifeq ($(mixed-targets),1)

424

ifeq ($(mixed-targets),1)

425

# ===========================================================================

425

# ===========================================================================

426

# We're called with mixed targets (*config and build targets).

426

# We're called with mixed targets (*config and build targets).

427

# Handle them one by one.

427

# Handle them one by one.

428

429

%:: FORCE

429

%:: FORCE

430

$(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@

430

$(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@

431

432

else

432

else

433

ifeq ($(config-targets),1)

433

ifeq ($(config-targets),1)

434

# ===========================================================================

434

# ===========================================================================

435

# *config targets only - make sure prerequisites are updated, and descend

435

# *config targets only - make sure prerequisites are updated, and descend

436

# in scripts/kconfig to make the *config target

436

# in scripts/kconfig to make the *config target

437

438

# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.

438

# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.

439

# KBUILD_DEFCONFIG may point out an alternative default configuration

439

# KBUILD_DEFCONFIG may point out an alternative default configuration

440

# used for 'make defconfig'

440

# used for 'make defconfig'

441

include $(srctree)/arch/$(SRCARCH)/Makefile

441

include $(srctree)/arch/$(SRCARCH)/Makefile

442

export KBUILD_DEFCONFIG KBUILD_KCONFIG

442

export KBUILD_DEFCONFIG KBUILD_KCONFIG

443

444

config: scripts_basic outputmakefile FORCE

444

config: scripts_basic outputmakefile FORCE

445

$(Q)mkdir -p include/linux include/config

445

$(Q)mkdir -p include/linux include/config

446

$(Q)$(MAKE) $(build)=scripts/kconfig $@

446

$(Q)$(MAKE) $(build)=scripts/kconfig $@

447

448

%config: scripts_basic outputmakefile FORCE

448

%config: scripts_basic outputmakefile FORCE

449

$(Q)mkdir -p include/linux include/config

449

$(Q)mkdir -p include/linux include/config

450

$(Q)$(MAKE) $(build)=scripts/kconfig $@

450

$(Q)$(MAKE) $(build)=scripts/kconfig $@

451

452

else

452

else

453

# ===========================================================================

453

# ===========================================================================

454

# Build targets only - this includes vmlinux, arch specific targets, clean

454

# Build targets only - this includes vmlinux, arch specific targets, clean

455

# targets and others. In general all targets except *config targets.

455

# targets and others. In general all targets except *config targets.

456

457

ifeq ($(KBUILD_EXTMOD),)

457

ifeq ($(KBUILD_EXTMOD),)

458

# Additional helpers built in scripts/

458

# Additional helpers built in scripts/

459

# Carefully list dependencies so we do not try to build scripts twice

459

# Carefully list dependencies so we do not try to build scripts twice

460

# in parallel

460

# in parallel

461

PHONY += scripts

461

PHONY += scripts

462

scripts: scripts_basic include/config/auto.conf

462

scripts: scripts_basic include/config/auto.conf

463

$(Q)$(MAKE) $(build)=$(@)

463

$(Q)$(MAKE) $(build)=$(@)

464

465

# Objects we will link into vmlinux / subdirs we need to visit

465

# Objects we will link into vmlinux / subdirs we need to visit

466

init-y := init/

466

init-y := init/

467

drivers-y := drivers/ sound/ firmware/

467

drivers-y := drivers/ sound/ firmware/

468

net-y := net/

468

net-y := net/

469

libs-y := lib/

469

libs-y := lib/

470

core-y := usr/

470

core-y := usr/

471

endif # KBUILD_EXTMOD

471

endif # KBUILD_EXTMOD

472

473

ifeq ($(dot-config),1)

473

ifeq ($(dot-config),1)

474

# Read in config

474

# Read in config

475

-include include/config/auto.conf

475

-include include/config/auto.conf

476

477

ifeq ($(KBUILD_EXTMOD),)

477

ifeq ($(KBUILD_EXTMOD),)

478

# Read in dependencies to all Kconfig* files, make sure to run

478

# Read in dependencies to all Kconfig* files, make sure to run

479

# oldconfig if changes are detected.

479

# oldconfig if changes are detected.

480

-include include/config/auto.conf.cmd

480

-include include/config/auto.conf.cmd

481

482

# To avoid any implicit rule to kick in, define an empty command

482

# To avoid any implicit rule to kick in, define an empty command

483

$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;

483

$(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;

484

485

# If .config is newer than include/config/auto.conf, someone tinkered

485

# If .config is newer than include/config/auto.conf, someone tinkered

486

# with it and forgot to run make oldconfig.

486

# with it and forgot to run make oldconfig.

487

# if auto.conf.cmd is missing then we are probably in a cleaned tree so

487

# if auto.conf.cmd is missing then we are probably in a cleaned tree so

488

# we execute the config step to be sure to catch updated Kconfig files

488

# we execute the config step to be sure to catch updated Kconfig files

489

include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd

489

include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd

490

$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig

490

$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig

491

else

491

else

492

# external modules needs include/linux/autoconf.h and include/config/auto.conf

492

# external modules needs include/linux/autoconf.h and include/config/auto.conf

493

# but do not care if they are up-to-date. Use auto.conf to trigger the test

493

# but do not care if they are up-to-date. Use auto.conf to trigger the test

494

PHONY += include/config/auto.conf

494

PHONY += include/config/auto.conf

495

496

include/config/auto.conf:

496

include/config/auto.conf:

497

$(Q)test -e include/linux/autoconf.h -a -e $@ || ( \

497

$(Q)test -e include/linux/autoconf.h -a -e $@ || ( \

498

echo; \

498

echo; \

499

echo " ERROR: Kernel configuration is invalid."; \

499

echo " ERROR: Kernel configuration is invalid."; \

500

echo " include/linux/autoconf.h or $@ are missing."; \

500

echo " include/linux/autoconf.h or $@ are missing."; \

501

echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \

501

echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \

502

echo; \

502

echo; \

503

/bin/false)

503

/bin/false)

504

505

endif # KBUILD_EXTMOD

505

endif # KBUILD_EXTMOD

506

507

else

507

else

508

# Dummy target needed, because used as prerequisite

508

# Dummy target needed, because used as prerequisite

509

include/config/auto.conf: ;

509

include/config/auto.conf: ;

510

endif # $(dot-config)

510

endif # $(dot-config)

511

512

# The all: target is the default when no target is given on the

512

# The all: target is the default when no target is given on the

513

# command line.

513

# command line.

514

# This allow a user to issue only 'make' to build a kernel including modules

514

# This allow a user to issue only 'make' to build a kernel including modules

515

# Defaults vmlinux but it is usually overridden in the arch makefile

515

# Defaults vmlinux but it is usually overridden in the arch makefile

516

all: vmlinux

516

all: vmlinux

517

518

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE

518

ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE

519

KBUILD_CFLAGS += -Os

519

KBUILD_CFLAGS += -Os

520

else

520

else

521

KBUILD_CFLAGS += -O2

521

KBUILD_CFLAGS += -O2

522

endif

522

endif

523

524

include $(srctree)/arch/$(SRCARCH)/Makefile

524

include $(srctree)/arch/$(SRCARCH)/Makefile

525

526

ifneq (CONFIG_FRAME_WARN,0)

526

ifneq (CONFIG_FRAME_WARN,0)

527

KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})

527

KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})

528

endif

528

endif

529

530

# Force gcc to behave correct even for buggy distributions

530

# Force gcc to behave correct even for buggy distributions

531

# Arch Makefiles may override this setting

531

# Arch Makefiles may override this setting

532

KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)

532

KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)

533

534

ifdef CONFIG_FRAME_POINTER

534

ifdef CONFIG_FRAME_POINTER

535

KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls

535

KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls

536

else

536

else

537

KBUILD_CFLAGS += -fomit-frame-pointer

537

KBUILD_CFLAGS += -fomit-frame-pointer

538

endif

538

endif

539

540

ifdef CONFIG_DEBUG_INFO

540

ifdef CONFIG_DEBUG_INFO

541

KBUILD_CFLAGS += -g

541

KBUILD_CFLAGS += -g

542

KBUILD_AFLAGS += -gdwarf-2

542

KBUILD_AFLAGS += -gdwarf-2

543

endif

543

endif

544

545

ifdef CONFIG_FUNCTION_TRACER

545

ifdef CONFIG_FUNCTION_TRACER

546

KBUILD_CFLAGS += -pg

546

KBUILD_CFLAGS += -pg

547

endif

547

endif

548

549

# We trigger additional mismatches with less inlining

549

# We trigger additional mismatches with less inlining

550

ifdef CONFIG_DEBUG_SECTION_MISMATCH

550

ifdef CONFIG_DEBUG_SECTION_MISMATCH

551

KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)

551

KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)

552

endif

552

endif

553

554

# arch Makefile may override CC so keep this after arch Makefile is included

554

# arch Makefile may override CC so keep this after arch Makefile is included

555

NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)

555

NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)

556

CHECKFLAGS += $(NOSTDINC_FLAGS)

556

CHECKFLAGS += $(NOSTDINC_FLAGS)

557

558

# warn about C99 declaration after statement

558

# warn about C99 declaration after statement

559

KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)

559

KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)

560

561

# disable pointer signed / unsigned warnings in gcc 4.0

561

# disable pointer signed / unsigned warnings in gcc 4.0

562

KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)

562

KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)

563

564

# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments

564

# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments

565

# But warn user when we do so

565

# But warn user when we do so

566

warn-assign = \

566

warn-assign = \

567

$(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)")

567

$(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)")

568

569

ifneq ($(KCPPFLAGS),)

569

ifneq ($(KCPPFLAGS),)

570

$(call warn-assign,CPPFLAGS)

570

$(call warn-assign,CPPFLAGS)

571

KBUILD_CPPFLAGS += $(KCPPFLAGS)

571

KBUILD_CPPFLAGS += $(KCPPFLAGS)

572

endif

572

endif

573

ifneq ($(KAFLAGS),)

573

ifneq ($(KAFLAGS),)

574

$(call warn-assign,AFLAGS)

574

$(call warn-assign,AFLAGS)

575

KBUILD_AFLAGS += $(KAFLAGS)

575

KBUILD_AFLAGS += $(KAFLAGS)

576

endif

576

endif

577

ifneq ($(KCFLAGS),)

577

ifneq ($(KCFLAGS),)

578

$(call warn-assign,CFLAGS)

578

$(call warn-assign,CFLAGS)

579

KBUILD_CFLAGS += $(KCFLAGS)

579

KBUILD_CFLAGS += $(KCFLAGS)

580

endif

580

endif

581

582

# Use --build-id when available.

582

# Use --build-id when available.

583

LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\

583

LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\

584

$(call ld-option, -Wl$(comma)--build-id,))

584

$(call ld-option, -Wl$(comma)--build-id,))

585

LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)

585

LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)

586

LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)

586

LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)

587

588

# Default kernel image to build when no specific target is given.

588

# Default kernel image to build when no specific target is given.

589

# KBUILD_IMAGE may be overruled on the command line or

589

# KBUILD_IMAGE may be overruled on the command line or

590

# set in the environment

590

# set in the environment

591

# Also any assignments in arch/$(ARCH)/Makefile take precedence over

591

# Also any assignments in arch/$(ARCH)/Makefile take precedence over

592

# this default value

592

# this default value

593

export KBUILD_IMAGE ?= vmlinux

593

export KBUILD_IMAGE ?= vmlinux

594

595

#

595

#

596

# INSTALL_PATH specifies where to place the updated kernel and system map

596

# INSTALL_PATH specifies where to place the updated kernel and system map

597

# images. Default is /boot, but you can set it to other values

597

# images. Default is /boot, but you can set it to other values

598

export INSTALL_PATH ?= /boot

598

export INSTALL_PATH ?= /boot

599

600

#

600

#

601

# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory

601

# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory

602

# relocations required by build roots. This is not defined in the

602

# relocations required by build roots. This is not defined in the

603

# makefile but the argument can be passed to make if needed.

603

# makefile but the argument can be passed to make if needed.

604

#

604

#

605

606

MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)

606

MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)

607

export MODLIB

607

export MODLIB

608

609

strip-symbols := $(srctree)/scripts/strip-symbols \

609

strip-symbols := $(srctree)/scripts/strip-symbols \

610

$(wildcard $(srctree)/arch/$(ARCH)/scripts/strip-symbols)

610

$(wildcard $(srctree)/arch/$(ARCH)/scripts/strip-symbols)

611

612

#

612

#

613

# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped while

613

# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped while

614

# they get installed. If INSTALL_MOD_STRIP is '1', then the default

614

# they get installed. If INSTALL_MOD_STRIP is '1', then the default

615

# options (see below) will be used. Otherwise, INSTALL_MOD_STRIP will

615

# options (see below) will be used. Otherwise, INSTALL_MOD_STRIP will

616

# be used as the option(s) to the objcopy command.

616

# be used as the option(s) to the objcopy command.

617

ifdef INSTALL_MOD_STRIP

617

ifdef INSTALL_MOD_STRIP

618

ifeq ($(INSTALL_MOD_STRIP),1)

618

ifeq ($(INSTALL_MOD_STRIP),1)

619

mod_strip_cmd = $(OBJCOPY) --strip-debug

619

mod_strip_cmd = $(OBJCOPY) --strip-debug

620

ifeq ($(CONFIG_KALLSYMS_ALL),$(CONFIG_KALLSYMS_STRIP_GENERATED))

620

ifeq ($(CONFIG_KALLSYMS_ALL),$(CONFIG_KALLSYMS_STRIP_GENERATED))

621

mod_strip_cmd += --wildcard $(addprefix --strip-symbols ,$(strip-symbols))

621

mod_strip_cmd += --wildcard $(addprefix --strip-symbols ,$(strip-symbols))

622

endif

622

endif

623

else

623

else

624

mod_strip_cmd = $(OBJCOPY) $(INSTALL_MOD_STRIP)

624

mod_strip_cmd = $(OBJCOPY) $(INSTALL_MOD_STRIP)

625

endif # INSTALL_MOD_STRIP=1

625

endif # INSTALL_MOD_STRIP=1

626

else

626

else

627

mod_strip_cmd = false

627

mod_strip_cmd = false

628

endif # INSTALL_MOD_STRIP

628

endif # INSTALL_MOD_STRIP

629

export mod_strip_cmd

629

export mod_strip_cmd

630

631

632

ifeq ($(KBUILD_EXTMOD),)

632

ifeq ($(KBUILD_EXTMOD),)

633

core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/

633

core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/

634

635

vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \

635

vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \

636

$(core-y) $(core-m) $(drivers-y) $(drivers-m) \

636

$(core-y) $(core-m) $(drivers-y) $(drivers-m) \

637

$(net-y) $(net-m) $(libs-y) $(libs-m)))

637

$(net-y) $(net-m) $(libs-y) $(libs-m)))

638

639

vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \

639

vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \

640

$(init-n) $(init-) \

640

$(init-n) $(init-) \

641

$(core-n) $(core-) $(drivers-n) $(drivers-) \

641

$(core-n) $(core-) $(drivers-n) $(drivers-) \

642

$(net-n) $(net-) $(libs-n) $(libs-))))

642

$(net-n) $(net-) $(libs-n) $(libs-))))

643

644

init-y := $(patsubst %/, %/built-in.o, $(init-y))

644

init-y := $(patsubst %/, %/built-in.o, $(init-y))

645

core-y := $(patsubst %/, %/built-in.o, $(core-y))

645

core-y := $(patsubst %/, %/built-in.o, $(core-y))

646

drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))

646

drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y))

647

net-y := $(patsubst %/, %/built-in.o, $(net-y))

647

net-y := $(patsubst %/, %/built-in.o, $(net-y))

648

libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))

648

libs-y1 := $(patsubst %/, %/lib.a, $(libs-y))

649

libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))

649

libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y))

650

libs-y := $(libs-y1) $(libs-y2)

650

libs-y := $(libs-y1) $(libs-y2)

651

652

# Build vmlinux

652

# Build vmlinux

653

# ---------------------------------------------------------------------------

653

# ---------------------------------------------------------------------------

654

# vmlinux is built from the objects selected by $(vmlinux-init) and

654

# vmlinux is built from the objects selected by $(vmlinux-init) and

655

# $(vmlinux-main). Most are built-in.o files from top-level directories

655

# $(vmlinux-main). Most are built-in.o files from top-level directories

656

# in the kernel tree, others are specified in arch/$(ARCH)/Makefile.

656

# in the kernel tree, others are specified in arch/$(ARCH)/Makefile.

657

# Ordering when linking is important, and $(vmlinux-init) must be first.

657

# Ordering when linking is important, and $(vmlinux-init) must be first.

658

#

658

#

659

# vmlinux

659

# vmlinux

660

# ^

660

# ^

661

# |

661

# |

662

# +-< $(vmlinux-init)

662

# +-< $(vmlinux-init)

663

# | +--< init/version.o + more

663

# | +--< init/version.o + more

664

# |

664

# |

665

# +--< $(vmlinux-main)

665

# +--< $(vmlinux-main)

666

# | +--< driver/built-in.o mm/built-in.o + more

666

# | +--< driver/built-in.o mm/built-in.o + more

667

# |

667

# |

668

# +-< kallsyms.o (see description in CONFIG_KALLSYMS section)

668

# +-< kallsyms.o (see description in CONFIG_KALLSYMS section)

669

#

669

#

670

# vmlinux version (uname -v) cannot be updated during normal

670

# vmlinux version (uname -v) cannot be updated during normal

671

# descending-into-subdirs phase since we do not yet know if we need to

671

# descending-into-subdirs phase since we do not yet know if we need to

672

# update vmlinux.

672

# update vmlinux.

673

# Therefore this step is delayed until just before final link of vmlinux -

673

# Therefore this step is delayed until just before final link of vmlinux -

674

# except in the kallsyms case where it is done just before adding the

674

# except in the kallsyms case where it is done just before adding the

675

# symbols to the kernel.

675

# symbols to the kernel.

676

#

676

#

677

# System.map is generated to document addresses of all kernel symbols

677

# System.map is generated to document addresses of all kernel symbols

678

679

vmlinux-init := $(head-y) $(init-y)

679

vmlinux-init := $(head-y) $(init-y)

680

vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)

680

vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)

681

vmlinux-all := $(vmlinux-init) $(vmlinux-main)

681

vmlinux-all := $(vmlinux-init) $(vmlinux-main)

682

vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds

682

vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds

683

export KBUILD_VMLINUX_OBJS := $(vmlinux-all)

683

export KBUILD_VMLINUX_OBJS := $(vmlinux-all)

684

685

# Rule to link vmlinux - also used during CONFIG_KALLSYMS

685

# Rule to link vmlinux - also used during CONFIG_KALLSYMS

686

# May be overridden by arch/$(ARCH)/Makefile

686

# May be overridden by arch/$(ARCH)/Makefile

687

quiet_cmd_vmlinux__ ?= LD $@

687

quiet_cmd_vmlinux__ ?= LD $@

688

cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \

688

cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \

689

-T $(vmlinux-lds) $(vmlinux-init) \

689

-T $(vmlinux-lds) $(vmlinux-init) \

690

--start-group $(vmlinux-main) --end-group \

690

--start-group $(vmlinux-main) --end-group \

691

$(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)

691

$(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^)

692

693

# Generate new vmlinux version

693

# Generate new vmlinux version

694

quiet_cmd_vmlinux_version = GEN .version

694

quiet_cmd_vmlinux_version = GEN .version

695

cmd_vmlinux_version = set -e; \

695

cmd_vmlinux_version = set -e; \

696

if [ ! -r .version ]; then \

696

if [ ! -r .version ]; then \

697

rm -f .version; \

697

rm -f .version; \

698

echo 1 >.version; \

698

echo 1 >.version; \

699

else \

699

else \

700

mv .version .old_version; \

700

mv .version .old_version; \

701

expr 0$$(cat .old_version) + 1 >.version; \

701

expr 0$$(cat .old_version) + 1 >.version; \

702

fi; \

702

fi; \

703

$(MAKE) $(build)=init

703

$(MAKE) $(build)=init

704

705

# Generate System.map

705

# Generate System.map

706

quiet_cmd_sysmap = SYSMAP

706

quiet_cmd_sysmap = SYSMAP

707

cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap

707

cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap

708

709

# Link of vmlinux

709

# Link of vmlinux

710

# If CONFIG_KALLSYMS is set .version is already updated

710

# If CONFIG_KALLSYMS is set .version is already updated

711

# Generate System.map and verify that the content is consistent

711

# Generate System.map and verify that the content is consistent

712

# Use + in front of the vmlinux_version rule to silent warning with make -j2

712

# Use + in front of the vmlinux_version rule to silent warning with make -j2

713

# First command is ':' to allow us to use + in front of the rule

713

# First command is ':' to allow us to use + in front of the rule

714

define rule_vmlinux__

714

define rule_vmlinux__

715

:

715

:

716

$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))

716

$(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version))

717

718

$(call cmd,vmlinux__)

718

$(call cmd,vmlinux__)

719

$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd

719

$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd

720

721

$(Q)$(if $($(quiet)cmd_sysmap), \

721

$(Q)$(if $($(quiet)cmd_sysmap), \

722

echo ' $($(quiet)cmd_sysmap) System.map' &&) \

722

echo ' $($(quiet)cmd_sysmap) System.map' &&) \

723

$(cmd_sysmap) $@ System.map; \

723

$(cmd_sysmap) $@ System.map; \

724

if [ $$? -ne 0 ]; then \

724

if [ $$? -ne 0 ]; then \

725

rm -f $@; \

725

rm -f $@; \

726

/bin/false; \

726

/bin/false; \

727

fi;

727

fi;

728

$(verify_kallsyms)

728

$(verify_kallsyms)

729

endef

729

endef

730

731

732

ifdef CONFIG_KALLSYMS

732

ifdef CONFIG_KALLSYMS

733

# Generate section listing all symbols and add it into vmlinux $(kallsyms.o)

733

# Generate section listing all symbols and add it into vmlinux $(kallsyms.o)

734

# It's a three stage process:

734

# It's a three stage process:

735

# o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is

735

# o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is

736

# empty

736

# empty

737

# Running kallsyms on that gives us .tmp_kallsyms1.o with

737

# Running kallsyms on that gives us .tmp_kallsyms1.o with

738

# the right size - vmlinux version (uname -v) is updated during this step

738

# the right size - vmlinux version (uname -v) is updated during this step

739

# o .tmp_vmlinux2 now has a __kallsyms section of the right size,

739

# o .tmp_vmlinux2 now has a __kallsyms section of the right size,

740

# but due to the added section, some addresses have shifted.

740

# but due to the added section, some addresses have shifted.

741

# From here, we generate a correct .tmp_kallsyms2.o

741

# From here, we generate a correct .tmp_kallsyms2.o

742

# o The correct .tmp_kallsyms2.o is linked into the final vmlinux.

742

# o The correct .tmp_kallsyms2.o is linked into the final vmlinux.

743

# o Verify that the System.map from vmlinux matches the map from

743

# o Verify that the System.map from vmlinux matches the map from

744

# .tmp_vmlinux2, just in case we did not generate kallsyms correctly.

744

# .tmp_vmlinux2, just in case we did not generate kallsyms correctly.

745

# o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using

745

# o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using

746

# .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a

746

# .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a

747

# temporary bypass to allow the kernel to be built while the

747

# temporary bypass to allow the kernel to be built while the

748

# maintainers work out what went wrong with kallsyms.

748

# maintainers work out what went wrong with kallsyms.

749

750

ifdef CONFIG_KALLSYMS_EXTRA_PASS

750

ifdef CONFIG_KALLSYMS_EXTRA_PASS

751

last_kallsyms := 3

751

last_kallsyms := 3

752

else

752

else

753

last_kallsyms := 2

753

last_kallsyms := 2

754

endif

754

endif

755

756

kallsyms.o := .tmp_kallsyms$(last_kallsyms).o

756

kallsyms.o := .tmp_kallsyms$(last_kallsyms).o

757

kallsyms.h := $(wildcard include/config/kallsyms/*.h) $(wildcard include/config/kallsyms/*/*.h)

757

kallsyms.h := $(wildcard include/config/kallsyms/*.h) $(wildcard include/config/kallsyms/*/*.h)

758

759

define verify_kallsyms

759

define verify_kallsyms

760

$(Q)$(if $($(quiet)cmd_sysmap), \

760

$(Q)$(if $($(quiet)cmd_sysmap), \

761

echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \

761

echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \

762

$(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map

762

$(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map

763

$(Q)cmp -s System.map .tmp_System.map || \

763

$(Q)cmp -s System.map .tmp_System.map || \

764

(echo Inconsistent kallsyms data; \

764

(echo Inconsistent kallsyms data; \

765

echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \

765

echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \

766

rm .tmp_kallsyms* ; /bin/false )

766

rm .tmp_kallsyms* ; /bin/false )

767

endef

767

endef

768

769

# Update vmlinux version before link

769

# Update vmlinux version before link

770

# Use + in front of this rule to silent warning about make -j1

770

# Use + in front of this rule to silent warning about make -j1

771

# First command is ':' to allow us to use + in front of this rule

771

# First command is ':' to allow us to use + in front of this rule

772

cmd_ksym_ld = $(cmd_vmlinux__)

772

cmd_ksym_ld = $(cmd_vmlinux__)

773

define rule_ksym_ld

773

define rule_ksym_ld

774

:

774

:

775

+$(call cmd,vmlinux_version)

775

+$(call cmd,vmlinux_version)

776

$(call cmd,vmlinux__)

776

$(call cmd,vmlinux__)

777

$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd

777

$(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd

778

endef

778

endef

779

780

# Generate .S file with all kernel symbols

780

# Generate .S file with all kernel symbols

781

quiet_cmd_kallsyms = KSYM $@

781

quiet_cmd_kallsyms = KSYM $@

782

cmd_kallsyms = { test $* -eq 0 || $(NM) -n $<; } \

782

cmd_kallsyms = { test $* -eq 0 || $(NM) -n $<; } \

783

| $(KALLSYMS) $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) >$@

783

| $(KALLSYMS) $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) >$@

784

785

quiet_cmd_kstrip = STRIP $@

785

quiet_cmd_kstrip = STRIP $@

786

cmd_kstrip = $(OBJCOPY) --wildcard $(addprefix --strip$(if $(CONFIG_RELOCATABLE),-unneeded)-symbols ,$(filter %/scripts/strip-symbols,$^)) $< $@

786

cmd_kstrip = $(OBJCOPY) --wildcard $(addprefix --strip$(if $(CONFIG_RELOCATABLE),-unneeded)-symbols ,$(filter %/scripts/strip-symbols,$^)) $< $@

787

788

$(foreach n,0 1 2 3,.tmp_kallsyms$(n).o): KBUILD_AFLAGS += -Wa,--strip-local-absolute

788

$(foreach n,0 1 2 3,.tmp_kallsyms$(n).o): KBUILD_AFLAGS += -Wa,--strip-local-absolute

789

$(foreach n,0 1 2 3,.tmp_kallsyms$(n).o): %.o: %.S scripts FORCE

789

$(foreach n,0 1 2 3,.tmp_kallsyms$(n).o): %.o: %.S scripts FORCE

790

$(call if_changed_dep,as_o_S)

790

$(call if_changed_dep,as_o_S)

791

792

ifeq ($(CONFIG_KALLSYMS_STRIP_GENERATED),y)

792

ifeq ($(CONFIG_KALLSYMS_STRIP_GENERATED),y)

793

strip-ext := .stripped

793

strip-ext := .stripped

794

endif

794

endif

795

796

.tmp_kallsyms%.S: .tmp_vmlinux%$(strip-ext) $(KALLSYMS) $(kallsyms.h)

796

.tmp_kallsyms%.S: .tmp_vmlinux%$(strip-ext) $(KALLSYMS) $(kallsyms.h)

797

$(call cmd,kallsyms)

797

$(call cmd,kallsyms)

798

799

# make -jN seems to have problems with intermediate files, see bug #3330.

799

# make -jN seems to have problems with intermediate files, see bug #3330.

800

.SECONDARY: $(foreach n,1 2 3,.tmp_vmlinux$(n).stripped)

800

.SECONDARY: $(foreach n,1 2 3,.tmp_vmlinux$(n).stripped)

801

.tmp_vmlinux%.stripped: .tmp_vmlinux% $(strip-symbols) $(kallsyms.h)

801

.tmp_vmlinux%.stripped: .tmp_vmlinux% $(strip-symbols) $(kallsyms.h)

802

$(call cmd,kstrip)

802

$(call cmd,kstrip)

803

804

ifneq ($(CONFIG_DEBUG_INFO),y)

804

ifneq ($(CONFIG_DEBUG_INFO),y)

805

.tmp_vmlinux%: LDFLAGS_vmlinux += -S

805

.tmp_vmlinux%: LDFLAGS_vmlinux += -S

806

endif

806

endif

807

# .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version

807

# .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version

808

.tmp_vmlinux%: $(vmlinux-lds) $(vmlinux-all) FORCE

808

.tmp_vmlinux%: $(vmlinux-lds) $(vmlinux-all) FORCE

809

$(if $(filter 1,$*),$(call if_changed_rule,ksym_ld),$(call if_changed,vmlinux__))

809

$(if $(filter 1,$*),$(call if_changed_rule,ksym_ld),$(call if_changed,vmlinux__))

810

811

.tmp_vmlinux0$(strip-ext):

811

.tmp_vmlinux0$(strip-ext):

812

$(Q)echo "placeholder" >$@

812

$(Q)echo "placeholder" >$@

813

814

.tmp_vmlinux1: .tmp_kallsyms0.o

814

.tmp_vmlinux1: .tmp_kallsyms0.o

815

.tmp_vmlinux2: .tmp_kallsyms1.o

815

.tmp_vmlinux2: .tmp_kallsyms1.o

816

.tmp_vmlinux3: .tmp_kallsyms2.o

816

.tmp_vmlinux3: .tmp_kallsyms2.o

817

818

# Needs to visit scripts/ before $(KALLSYMS) can be used.

818

# Needs to visit scripts/ before $(KALLSYMS) can be used.

819

$(KALLSYMS): scripts ;

819

$(KALLSYMS): scripts ;

820

821

# Generate some data for debugging strange kallsyms problems

821

# Generate some data for debugging strange kallsyms problems

822

debug_kallsyms: .tmp_map$(last_kallsyms)

822

debug_kallsyms: .tmp_map$(last_kallsyms)

823

824

.tmp_map%: .tmp_vmlinux% FORCE

824

.tmp_map%: .tmp_vmlinux% FORCE

825

($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@

825

($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@

826

827

.tmp_map3: .tmp_map2

827

.tmp_map3: .tmp_map2

828

829

.tmp_map2: .tmp_map1

829

.tmp_map2: .tmp_map1

830

831

endif # ifdef CONFIG_KALLSYMS

831

endif # ifdef CONFIG_KALLSYMS

832

833

# Do modpost on a prelinked vmlinux. The finally linked vmlinux has

833

# Do modpost on a prelinked vmlinux. The finally linked vmlinux has

834

# relevant sections renamed as per the linker script.

834

# relevant sections renamed as per the linker script.

835

quiet_cmd_vmlinux-modpost = LD $@

835

quiet_cmd_vmlinux-modpost = LD $@

836

cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \

836

cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \

837

$(vmlinux-init) --start-group $(vmlinux-main) --end-group \

837

$(vmlinux-init) --start-group $(vmlinux-main) --end-group \

838

$(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^)

838

$(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^)

839

define rule_vmlinux-modpost

839

define rule_vmlinux-modpost

840

:

840

:

841

+$(call cmd,vmlinux-modpost)

841

+$(call cmd,vmlinux-modpost)

842

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@

842

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@

843

$(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd

843

$(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd

844

endef

844

endef

845

846

# vmlinux image - including updated kernel symbols

846

# vmlinux image - including updated kernel symbols

847

vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE

847

vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE

848

ifdef CONFIG_HEADERS_CHECK

848

ifdef CONFIG_HEADERS_CHECK

849

$(Q)$(MAKE) -f $(srctree)/Makefile headers_check

849

$(Q)$(MAKE) -f $(srctree)/Makefile headers_check

850

endif

850

endif

851

ifdef CONFIG_SAMPLES

851

ifdef CONFIG_SAMPLES

852

$(Q)$(MAKE) $(build)=samples

852

$(Q)$(MAKE) $(build)=samples

853

endif

853

endif

854

ifdef CONFIG_BUILD_DOCSRC

854

ifdef CONFIG_BUILD_DOCSRC

855

$(Q)$(MAKE) $(build)=Documentation

855

$(Q)$(MAKE) $(build)=Documentation

856

endif

856

endif

857

$(call vmlinux-modpost)

857

$(call vmlinux-modpost)

858

$(call if_changed_rule,vmlinux__)

858

$(call if_changed_rule,vmlinux__)

859

$(Q)rm -f .old_version

859

$(Q)rm -f .old_version

860

861

# build vmlinux.o first to catch section mismatch errors early

861

# build vmlinux.o first to catch section mismatch errors early

862

ifdef CONFIG_KALLSYMS

862

ifdef CONFIG_KALLSYMS

863

.tmp_vmlinux1: vmlinux.o

863

.tmp_vmlinux1: vmlinux.o

864

endif

864

endif

865

866

modpost-init := $(filter-out init/built-in.o, $(vmlinux-init))

866

modpost-init := $(filter-out init/built-in.o, $(vmlinux-init))

867

vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE

867

vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE

868

$(call if_changed_rule,vmlinux-modpost)

868

$(call if_changed_rule,vmlinux-modpost)

869

870

# The actual objects are generated when descending,

870

# The actual objects are generated when descending,

871

# make sure no implicit rule kicks in

871

# make sure no implicit rule kicks in

872

$(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;

872

$(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;

873

874

# Handle descending into subdirectories listed in $(vmlinux-dirs)

874

# Handle descending into subdirectories listed in $(vmlinux-dirs)

875

# Preset locale variables to speed up the build process. Limit locale

875

# Preset locale variables to speed up the build process. Limit locale

876

# tweaks to this spot to avoid wrong language settings when running

876

# tweaks to this spot to avoid wrong language settings when running

877

# make menuconfig etc.

877

# make menuconfig etc.

878

# Error messages still appears in the original language

878

# Error messages still appears in the original language

879

880

PHONY += $(vmlinux-dirs)

880

PHONY += $(vmlinux-dirs)

881

$(vmlinux-dirs): prepare scripts

881

$(vmlinux-dirs): prepare scripts

882

$(Q)$(MAKE) $(build)=$@

882

$(Q)$(MAKE) $(build)=$@

883

884

# Build the kernel release string

884

# Build the kernel release string

885

#

885

#

886

# The KERNELRELEASE value built here is stored in the file

886

# The KERNELRELEASE value built here is stored in the file

887

# include/config/kernel.release, and is used when executing several

887

# include/config/kernel.release, and is used when executing several

888

# make targets, such as "make install" or "make modules_install."

888

# make targets, such as "make install" or "make modules_install."

889

#

889

#

890

# The eventual kernel release string consists of the following fields,

890

# The eventual kernel release string consists of the following fields,

891

# shown in a hierarchical format to show how smaller parts are concatenated

891

# shown in a hierarchical format to show how smaller parts are concatenated

892

# to form the larger and final value, with values coming from places like

892

# to form the larger and final value, with values coming from places like

893

# the Makefile, kernel config options, make command line options and/or

893

# the Makefile, kernel config options, make command line options and/or

894

# SCM tag information.

894

# SCM tag information.

895

#

895

#

896

# $(KERNELVERSION)

896

# $(KERNELVERSION)

897

# $(VERSION) eg, 2

897

# $(VERSION) eg, 2

898

# $(PATCHLEVEL) eg, 6

898

# $(PATCHLEVEL) eg, 6

899

# $(SUBLEVEL) eg, 18

899

# $(SUBLEVEL) eg, 18

900

# $(EXTRAVERSION) eg, -rc6

900

# $(EXTRAVERSION) eg, -rc6

901

# $(localver-full)

901

# $(localver-full)

902

# $(localver)

902

# $(localver)

903

# localversion* (files without backups, containing '~')

903

# localversion* (files without backups, containing '~')

904

# $(CONFIG_LOCALVERSION) (from kernel config setting)

904

# $(CONFIG_LOCALVERSION) (from kernel config setting)

905

# $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set)

905

# $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set)

906

# ./scripts/setlocalversion (SCM tag, if one exists)

906

# ./scripts/setlocalversion (SCM tag, if one exists)

907

# $(LOCALVERSION) (from make command line if provided)

907

# $(LOCALVERSION) (from make command line if provided)

908

#

908

#

909

# Note how the final $(localver-auto) string is included *only* if the

909

# Note how the final $(localver-auto) string is included *only* if the

910

# kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the

910

# kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the

911

# moment, only git is supported but other SCMs can edit the script

911

# moment, only git is supported but other SCMs can edit the script

912

# scripts/setlocalversion and add the appropriate checks as needed.

912

# scripts/setlocalversion and add the appropriate checks as needed.

913

914

pattern = ".*/localversion[^~]*"

914

pattern = ".*/localversion[^~]*"

915

string = $(shell cat /dev/null \

915

string = $(shell cat /dev/null \

916

`find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`)

916

`find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`)

917

918

localver = $(subst $(space),, $(string) \

918

localver = $(subst $(space),, $(string) \

919

$(patsubst "%",%,$(CONFIG_LOCALVERSION)))

919

$(patsubst "%",%,$(CONFIG_LOCALVERSION)))

920

921

# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called

921

# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called

922

# and if the SCM is know a tag from the SCM is appended.

922

# and if the SCM is know a tag from the SCM is appended.

923

# The appended tag is determined by the SCM used.

923

# The appended tag is determined by the SCM used.

924

#

924

#

925

# Currently, only git is supported.

925

# Currently, only git is supported.

926

# Other SCMs can edit scripts/setlocalversion and add the appropriate

926

# Other SCMs can edit scripts/setlocalversion and add the appropriate

927

# checks as needed.

927

# checks as needed.

928

ifdef CONFIG_LOCALVERSION_AUTO

928

ifdef CONFIG_LOCALVERSION_AUTO

929

_localver-auto = $(shell $(CONFIG_SHELL) \

929

_localver-auto = $(shell $(CONFIG_SHELL) \

930

$(srctree)/scripts/setlocalversion $(srctree))

930

$(srctree)/scripts/setlocalversion $(srctree))

931

localver-auto = $(LOCALVERSION)$(_localver-auto)

931

localver-auto = $(LOCALVERSION)$(_localver-auto)

932

endif

932

endif

933

934

localver-full = $(localver)$(localver-auto)

934

localver-full = $(localver)$(localver-auto)

935

936

# Store (new) KERNELRELASE string in include/config/kernel.release

936

# Store (new) KERNELRELASE string in include/config/kernel.release

937

kernelrelease = $(KERNELVERSION)$(localver-full)

937

kernelrelease = $(KERNELVERSION)$(localver-full)

938

include/config/kernel.release: include/config/auto.conf FORCE

938

include/config/kernel.release: include/config/auto.conf FORCE

939

$(Q)rm -f $@

939

$(Q)rm -f $@

940

$(Q)echo $(kernelrelease) > $@

940

$(Q)echo $(kernelrelease) > $@

941

942

943

# Things we need to do before we recursively start building the kernel

943

# Things we need to do before we recursively start building the kernel

944

# or the modules are listed in "prepare".

944

# or the modules are listed in "prepare".

945

# A multi level approach is used. prepareN is processed before prepareN-1.

945

# A multi level approach is used. prepareN is processed before prepareN-1.

946

# archprepare is used in arch Makefiles and when processed asm symlink,

946

# archprepare is used in arch Makefiles and when processed asm symlink,

947

# version.h and scripts_basic is processed / created.

947

# version.h and scripts_basic is processed / created.

948

949

# Listed in dependency order

949

# Listed in dependency order

950

PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3

950

PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3

951

952

# prepare3 is used to check if we are building in a separate output directory,

952

# prepare3 is used to check if we are building in a separate output directory,

953

# and if so do:

953

# and if so do:

954

# 1) Check that make has not been executed in the kernel src $(srctree)

954

# 1) Check that make has not been executed in the kernel src $(srctree)

955

# 2) Create the include2 directory, used for the second asm symlink

955

# 2) Create the include2 directory, used for the second asm symlink

956

prepare3: include/config/kernel.release

956

prepare3: include/config/kernel.release

957

ifneq ($(KBUILD_SRC),)

957

ifneq ($(KBUILD_SRC),)

958

@$(kecho) ' Using $(srctree) as source for kernel'

958

@$(kecho) ' Using $(srctree) as source for kernel'

959

$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \

959

$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \

960

echo " $(srctree) is not clean, please run 'make mrproper'";\

960

echo " $(srctree) is not clean, please run 'make mrproper'";\

961

echo " in the '$(srctree)' directory.";\

961

echo " in the '$(srctree)' directory.";\

962

/bin/false; \

962

/bin/false; \

963

fi;

963

fi;

964

$(Q)if [ ! -d include2 ]; then \

964

$(Q)if [ ! -d include2 ]; then \

965

mkdir -p include2; \

965

mkdir -p include2; \

966

ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \

966

ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \

967

fi

967

fi

968

ln -fsn $(srctree) source

968

ln -fsn $(srctree) source

969

endif

969

endif

970

971

# prepare2 creates a makefile if using a separate output directory

971

# prepare2 creates a makefile if using a separate output directory

972

prepare2: prepare3 outputmakefile

972

prepare2: prepare3 outputmakefile

973

974

prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \

974

prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \

975

include/asm include/config/auto.conf

975

include/asm include/config/auto.conf

976

$(cmd_crmodverdir)

976

$(cmd_crmodverdir)

977

978

archprepare: prepare1 scripts_basic

978

archprepare: prepare1 scripts_basic

979

980

prepare0: archprepare FORCE

980

prepare0: archprepare FORCE

981

$(Q)$(MAKE) $(build)=.

981

$(Q)$(MAKE) $(build)=.

982

$(Q)$(MAKE) $(build)=. missing-syscalls

982

$(Q)$(MAKE) $(build)=. missing-syscalls

983

984

# All the preparing..

984

# All the preparing..

985

prepare: prepare0

985

prepare: prepare0

986

987

# Leave this as default for preprocessing vmlinux.lds.S, which is now

987

# Leave this as default for preprocessing vmlinux.lds.S, which is now

988

# done in arch/$(ARCH)/kernel/Makefile

988

# done in arch/$(ARCH)/kernel/Makefile

989

990

export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)

990

export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)

991

992

# The asm symlink changes when $(ARCH) changes.

992

# The asm symlink changes when $(ARCH) changes.

993

# Detect this and ask user to run make mrproper

993

# Detect this and ask user to run make mrproper

994

# If asm is a stale symlink (point to dir that does not exist) remove it

994

# If asm is a stale symlink (point to dir that does not exist) remove it

995

define check-symlink

995

define check-symlink

996

set -e; \

996

set -e; \

997

if [ -L include/asm ]; then \

997

if [ -L include/asm ]; then \

998

asmlink=`readlink include/asm | cut -d '-' -f 2`; \

998

asmlink=`readlink include/asm | cut -d '-' -f 2`; \

999

if [ "$$asmlink" != "$(SRCARCH)" ]; then \

999

if [ "$$asmlink" != "$(SRCARCH)" ]; then \

1000

echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \

1000

echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \

1001

echo " set ARCH or save .config and run 'make mrproper' to fix it"; \

1001

echo " set ARCH or save .config and run 'make mrproper' to fix it"; \

1002

exit 1; \

1002

exit 1; \

1003

fi; \

1003

fi; \

1004

test -e $$asmlink || rm include/asm; \

1004

test -e $$asmlink || rm include/asm; \

1005

elif [ -d include/asm ]; then \

1005

elif [ -d include/asm ]; then \

1006

echo "ERROR: $@ is a directory but a symlink was expected";\

1006

echo "ERROR: $@ is a directory but a symlink was expected";\

1007

exit 1; \

1007

exit 1; \

1008

fi

1008

fi

1009

endef

1009

endef

1010

1011

# We create the target directory of the symlink if it does

1011

# We create the target directory of the symlink if it does

1012

# not exist so the test in check-symlink works and we have a

1012

# not exist so the test in check-symlink works and we have a

1013

# directory for generated filesas used by some architectures.

1013

# directory for generated filesas used by some architectures.

1014

define create-symlink

1014

define create-symlink

1015

if [ ! -L include/asm ]; then \

1015

if [ ! -L include/asm ]; then \

1016

$(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \

1016

$(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \

1017

if [ ! -d include/asm-$(SRCARCH) ]; then \

1017

if [ ! -d include/asm-$(SRCARCH) ]; then \

1018

mkdir -p include/asm-$(SRCARCH); \

1018

mkdir -p include/asm-$(SRCARCH); \

1019

fi; \

1019

fi; \

1020

ln -fsn asm-$(SRCARCH) $@; \

1020

ln -fsn asm-$(SRCARCH) $@; \

1021

fi

1021

fi

1022

endef

1022

endef

1023

1024

include/asm: FORCE

1024

include/asm: FORCE

1025

$(Q)$(check-symlink)

1025

$(Q)$(check-symlink)

1026

$(Q)$(create-symlink)

1026

$(Q)$(create-symlink)

1027

1028

# Generate some files

1028

# Generate some files

1029

# ---------------------------------------------------------------------------

1029

# ---------------------------------------------------------------------------

1030

1031

# KERNELRELEASE can change from a few different places, meaning version.h

1031

# KERNELRELEASE can change from a few different places, meaning version.h

1032

# needs to be updated, so this check is forced on all builds

1032

# needs to be updated, so this check is forced on all builds

1033

1034

uts_len := 64

1034

uts_len := 64

1035

define filechk_utsrelease.h

1035

define filechk_utsrelease.h

1036

if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \

1036

if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \

1037

echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \

1037

echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \

1038

exit 1; \

1038

exit 1; \

1039

fi; \

1039

fi; \

1040

(echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)

1040

(echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";)

1041

endef

1041

endef

1042

1043

define filechk_version.h

1043

define filechk_version.h

1044

(echo \#define LINUX_VERSION_CODE $(shell \

1044

(echo \#define LINUX_VERSION_CODE $(shell \

1045

expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \

1045

expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \

1046

echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)

1046

echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';)

1047

endef

1047

endef

1048

1049

include/linux/version.h: $(srctree)/Makefile FORCE

1049

include/linux/version.h: $(srctree)/Makefile FORCE

1050

$(call filechk,version.h)

1050

$(call filechk,version.h)

1051

1052

include/linux/utsrelease.h: include/config/kernel.release FORCE

1052

include/linux/utsrelease.h: include/config/kernel.release FORCE

1053

$(call filechk,utsrelease.h)

1053

$(call filechk,utsrelease.h)

1054

1055

PHONY += headerdep

1055

PHONY += headerdep

1056

headerdep:

1056

headerdep:

1057

$(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl

1057

$(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl

1058

1059

# ---------------------------------------------------------------------------

1059

# ---------------------------------------------------------------------------

1060

1061

PHONY += depend dep

1061

PHONY += depend dep

1062

depend dep:

1062

depend dep:

1063

@echo '*** Warning: make $@ is unnecessary now.'

1063

@echo '*** Warning: make $@ is unnecessary now.'

1064

1065

# ---------------------------------------------------------------------------

1065

# ---------------------------------------------------------------------------

1066

# Firmware install

1066

# Firmware install

1067

INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware

1067

INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware

1068

export INSTALL_FW_PATH

1068

export INSTALL_FW_PATH

1069

1070

PHONY += firmware_install

1070

PHONY += firmware_install

1071

firmware_install: FORCE

1071

firmware_install: FORCE

1072

@mkdir -p $(objtree)/firmware

1072

@mkdir -p $(objtree)/firmware

1073

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install

1073

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install

1074

1075

# ---------------------------------------------------------------------------

1075

# ---------------------------------------------------------------------------

1076

# Kernel headers

1076

# Kernel headers

1077

1078

#Default location for installed headers

1078

#Default location for installed headers

1079

export INSTALL_HDR_PATH = $(objtree)/usr

1079

export INSTALL_HDR_PATH = $(objtree)/usr

1080

1081

hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj

1081

hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj

1082

# Find out where the Kbuild file is located to support

1082

# Find out where the Kbuild file is located to support

1083

# arch/$(ARCH)/include/asm

1083

# arch/$(ARCH)/include/asm

1084

hdr-dir = $(strip \

1084

hdr-dir = $(strip \

1085

$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \

1085

$(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \

1086

arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch)))

1086

arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch)))

1087

1088

# If we do an all arch process set dst to asm-$(hdr-arch)

1088

# If we do an all arch process set dst to asm-$(hdr-arch)

1089

hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)

1089

hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)

1090

1091

PHONY += __headers

1091

PHONY += __headers

1092

__headers: include/linux/version.h scripts_basic FORCE

1092

__headers: include/linux/version.h scripts_basic FORCE

1093

$(Q)$(MAKE) $(build)=scripts scripts/unifdef

1093

$(Q)$(MAKE) $(build)=scripts scripts/unifdef

1094

1095

PHONY += headers_install_all

1095

PHONY += headers_install_all

1096

headers_install_all:

1096

headers_install_all:

1097

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install

1097

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install

1098

1099

PHONY += headers_install

1099

PHONY += headers_install

1100

headers_install: __headers

1100

headers_install: __headers

1101

$(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \

1101

$(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \

1102

$(error Headers not exportable for the $(SRCARCH) architecture))

1102

$(error Headers not exportable for the $(SRCARCH) architecture))

1103

$(Q)$(MAKE) $(hdr-inst)=include

1103

$(Q)$(MAKE) $(hdr-inst)=include

1104

$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst)

1104

$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst)

1105

1106

PHONY += headers_check_all

1106

PHONY += headers_check_all

1107

headers_check_all: headers_install_all

1107

headers_check_all: headers_install_all

1108

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check

1108

$(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check

1109

1110

PHONY += headers_check

1110

PHONY += headers_check

1111

headers_check: headers_install

1111

headers_check: headers_install

1112

$(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1

1112

$(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1

1113

$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1

1113

$(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1

1114

1115

# ---------------------------------------------------------------------------

1115

# ---------------------------------------------------------------------------

1116

# Modules

1116

# Modules

1117

1118

ifdef CONFIG_MODULES

1118

ifdef CONFIG_MODULES

1119

1120

# By default, build modules as well

1120

# By default, build modules as well

1121

1122

all: modules

1122

all: modules

1123

1124

# Build modules

1124

# Build modules

1125

#

1125

#

1126

# A module can be listed more than once in obj-m resulting in

1126

# A module can be listed more than once in obj-m resulting in

1127

# duplicate lines in modules.order files. Those are removed

1127

# duplicate lines in modules.order files. Those are removed

1128

# using awk while concatenating to the final file.

1128

# using awk while concatenating to the final file.

1129

1130

PHONY += modules

1130

PHONY += modules

1131

modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)

1131

modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)

1132

$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order

1132

$(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order

1133

@$(kecho) ' Building modules, stage 2.';

1133

@$(kecho) ' Building modules, stage 2.';

1134

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost

1134

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost

1135

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild

1135

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild

1136

1137

1138

# Target to prepare building external modules

1138

# Target to prepare building external modules

1139

PHONY += modules_prepare

1139

PHONY += modules_prepare

1140

modules_prepare: prepare scripts

1140

modules_prepare: prepare scripts

1141

1142

# Target to install modules

1142

# Target to install modules

1143

PHONY += modules_install

1143

PHONY += modules_install

1144

modules_install: _modinst_ _modinst_post

1144

modules_install: _modinst_ _modinst_post

1145

1146

PHONY += _modinst_

1146

PHONY += _modinst_

1147

_modinst_:

1147

_modinst_:

1148

@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \

1148

@if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \

1149

echo "Warning: you may need to install module-init-tools"; \

1149

echo "Warning: you may need to install module-init-tools"; \

1150

echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\

1150

echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\

1151

sleep 1; \

1151

sleep 1; \

1152

fi

1152

fi

1153

@rm -rf $(MODLIB)/kernel

1153

@rm -rf $(MODLIB)/kernel

1154

@rm -f $(MODLIB)/source

1154

@rm -f $(MODLIB)/source

1155

@mkdir -p $(MODLIB)/kernel

1155

@mkdir -p $(MODLIB)/kernel

1156

@ln -s $(srctree) $(MODLIB)/source

1156

@ln -s $(srctree) $(MODLIB)/source

1157

@if [ ! $(objtree) -ef $(MODLIB)/build ]; then \

1157

@if [ ! $(objtree) -ef $(MODLIB)/build ]; then \

1158

rm -f $(MODLIB)/build ; \

1158

rm -f $(MODLIB)/build ; \

1159

ln -s $(objtree) $(MODLIB)/build ; \

1159

ln -s $(objtree) $(MODLIB)/build ; \

1160

fi

1160

fi

1161

@cp -f $(objtree)/modules.order $(MODLIB)/

1161

@cp -f $(objtree)/modules.order $(MODLIB)/

1162

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst

1162

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst

1163

1164

# This depmod is only for convenience to give the initial

1164

# This depmod is only for convenience to give the initial

1165

# boot a modules.dep even before / is mounted read-write. However the

1165

# boot a modules.dep even before / is mounted read-write. However the

1166

# boot script depmod is the master version.

1166

# boot script depmod is the master version.

1167

PHONY += _modinst_post

1167

PHONY += _modinst_post

1168

_modinst_post: _modinst_

1168

_modinst_post: _modinst_

1169

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst

1169

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst

1170

$(call cmd,depmod)

1170

$(call cmd,depmod)

1171

1172

else # CONFIG_MODULES

1172

else # CONFIG_MODULES

1173

1174

# Modules not configured

1174

# Modules not configured

1175

# ---------------------------------------------------------------------------

1175

# ---------------------------------------------------------------------------

1176

1177

modules modules_install: FORCE

1177

modules modules_install: FORCE

1178

@echo

1178

@echo

1179

@echo "The present kernel configuration has modules disabled."

1179

@echo "The present kernel configuration has modules disabled."

1180

@echo "Type 'make config' and enable loadable module support."

1180

@echo "Type 'make config' and enable loadable module support."

1181

@echo "Then build a kernel with module support enabled."

1181

@echo "Then build a kernel with module support enabled."

1182

@echo

1182

@echo

1183

@exit 1

1183

@exit 1

1184

1185

endif # CONFIG_MODULES

1185

endif # CONFIG_MODULES

1186

1187

###

1187

###

1188

# Cleaning is done on three levels.

1188

# Cleaning is done on three levels.

1189

# make clean Delete most generated files

1189

# make clean Delete most generated files

1190

# Leave enough to build external modules

1190

# Leave enough to build external modules

1191

# make mrproper Delete the current configuration, and all generated files

1191

# make mrproper Delete the current configuration, and all generated files

1192

# make distclean Remove editor backup files, patch leftover files and the like

1192

# make distclean Remove editor backup files, patch leftover files and the like

1193

1194

# Directories & files removed with 'make clean'

1194

# Directories & files removed with 'make clean'

1195

CLEAN_DIRS += $(MODVERDIR)

1195

CLEAN_DIRS += $(MODVERDIR)

1196

CLEAN_FILES += vmlinux System.map \

1196

CLEAN_FILES += vmlinux System.map \

1197

.tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map

1197

.tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map

1198

1199

# Directories & files removed with 'make mrproper'

1199

# Directories & files removed with 'make mrproper'

1200

MRPROPER_DIRS += include/config include2 usr/include

1200

MRPROPER_DIRS += include/config include2 usr/include

1201

MRPROPER_FILES += .config .config.old include/asm .version .old_version \

1201

MRPROPER_FILES += .config .config.old include/asm .version .old_version \

1202

include/linux/autoconf.h include/linux/version.h \

1202

include/linux/autoconf.h include/linux/version.h \

1203

include/linux/utsrelease.h \

1203

include/linux/utsrelease.h \

1204

include/linux/bounds.h include/asm*/asm-offsets.h \

1204

include/linux/bounds.h include/asm*/asm-offsets.h \

1205

Module.symvers Module.markers tags TAGS cscope*

1205

Module.symvers Module.markers tags TAGS cscope*

1206

1207

# clean - Delete most, but leave enough to build external modules

1207

# clean - Delete most, but leave enough to build external modules

1208

#

1208

#

1209

clean: rm-dirs := $(CLEAN_DIRS)

1209

clean: rm-dirs := $(CLEAN_DIRS)

1210

clean: rm-files := $(CLEAN_FILES)

1210

clean: rm-files := $(CLEAN_FILES)

1211

clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation)

1211

clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation)

1212

1213

PHONY += $(clean-dirs) clean archclean

1213

PHONY += $(clean-dirs) clean archclean

1214

$(clean-dirs):

1214

$(clean-dirs):

1215

$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)

1215

$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)

1216

1217

clean: archclean $(clean-dirs)

1217

clean: archclean $(clean-dirs)

1218

$(call cmd,rmdirs)

1218

$(call cmd,rmdirs)

1219

$(call cmd,rmfiles)

1219

$(call cmd,rmfiles)

1220

@find . $(RCS_FIND_IGNORE) \

1220

@find . $(RCS_FIND_IGNORE) \

1221

\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \

1221

\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \

1222

-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \

1222

-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \

1223

-o -name '*.symtypes' -o -name 'modules.order' \

1223

-o -name '*.symtypes' -o -name 'modules.order' \

1224

-o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \

1224

-o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \

1225

-type f -print | xargs rm -f

1225

-type f -print | xargs rm -f

1226

1227

# mrproper - Delete all generated files, including .config

1227

# mrproper - Delete all generated files, including .config

1228

#

1228

#

1229

mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))

1229

mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS))

1230

mrproper: rm-files := $(wildcard $(MRPROPER_FILES))

1230

mrproper: rm-files := $(wildcard $(MRPROPER_FILES))

1231

mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)

1231

mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts)

1232

1233

PHONY += $(mrproper-dirs) mrproper archmrproper

1233

PHONY += $(mrproper-dirs) mrproper archmrproper

1234

$(mrproper-dirs):

1234

$(mrproper-dirs):

1235

$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)

1235

$(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@)

1236

1237

mrproper: clean archmrproper $(mrproper-dirs)

1237

mrproper: clean archmrproper $(mrproper-dirs)

1238

$(call cmd,rmdirs)

1238

$(call cmd,rmdirs)

1239

$(call cmd,rmfiles)

1239

$(call cmd,rmfiles)

1240

1241

# distclean

1241

# distclean

1242

#

1242

#

1243

PHONY += distclean

1243

PHONY += distclean

1244

1245

distclean: mrproper

1245

distclean: mrproper

1246

@find $(srctree) $(RCS_FIND_IGNORE) \

1246

@find $(srctree) $(RCS_FIND_IGNORE) \

1247

\( -name '*.orig' -o -name '*.rej' -o -name '*~' \

1247

\( -name '*.orig' -o -name '*.rej' -o -name '*~' \

1248

-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \

1248

-o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \

1249

-o -name '.*.rej' -o -size 0 \

1249

-o -name '.*.rej' -o -size 0 \

1250

-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \

1250

-o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \

1251

-type f -print | xargs rm -f

1251

-type f -print | xargs rm -f

1252

1253

1254

# Packaging of the kernel to various formats

1254

# Packaging of the kernel to various formats

1255

# ---------------------------------------------------------------------------

1255

# ---------------------------------------------------------------------------

1256

# rpm target kept for backward compatibility

1256

# rpm target kept for backward compatibility

1257

package-dir := $(srctree)/scripts/package

1257

package-dir := $(srctree)/scripts/package

1258

1259

%pkg: include/config/kernel.release FORCE

1259

%pkg: include/config/kernel.release FORCE

1260

$(Q)$(MAKE) $(build)=$(package-dir) $@

1260

$(Q)$(MAKE) $(build)=$(package-dir) $@

1261

rpm: include/config/kernel.release FORCE

1261

rpm: include/config/kernel.release FORCE

1262

$(Q)$(MAKE) $(build)=$(package-dir) $@

1262

$(Q)$(MAKE) $(build)=$(package-dir) $@

1263

1264

1265

# Brief documentation of the typical targets used

1265

# Brief documentation of the typical targets used

1266

# ---------------------------------------------------------------------------

1266

# ---------------------------------------------------------------------------

1267

1268

boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)

1268

boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)

1269

boards := $(notdir $(boards))

1269

boards := $(notdir $(boards))

1270

board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))

1270

board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))

1271

board-dirs := $(sort $(notdir $(board-dirs:/=)))

1271

board-dirs := $(sort $(notdir $(board-dirs:/=)))

1272

1273

help:

1273

help:

1274

@echo 'Cleaning targets:'

1274

@echo 'Cleaning targets:'

1275

@echo ' clean - Remove most generated files but keep the config and'

1275

@echo ' clean - Remove most generated files but keep the config and'

1276

@echo ' enough build support to build external modules'

1276

@echo ' enough build support to build external modules'

1277

@echo ' mrproper - Remove all generated files + config + various backup files'

1277

@echo ' mrproper - Remove all generated files + config + various backup files'

1278

@echo ' distclean - mrproper + remove editor backup and patch files'

1278

@echo ' distclean - mrproper + remove editor backup and patch files'

1279

@echo ''

1279

@echo ''

1280

@echo 'Configuration targets:'

1280

@echo 'Configuration targets:'

1281

@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help

1281

@$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help

1282

@echo ''

1282

@echo ''

1283

@echo 'Other generic targets:'

1283

@echo 'Other generic targets:'

1284

@echo ' all - Build all targets marked with [*]'

1284

@echo ' all - Build all targets marked with [*]'

1285

@echo '* vmlinux - Build the bare kernel'

1285

@echo '* vmlinux - Build the bare kernel'

1286

@echo '* modules - Build all modules'

1286

@echo '* modules - Build all modules'

1287

@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'

1287

@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'

1288

@echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'

1288

@echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'

1289

@echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'

1289

@echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'

1290

@echo ' dir/ - Build all files in dir and below'

1290

@echo ' dir/ - Build all files in dir and below'

1291

@echo ' dir/file.[ois] - Build specified target only'

1291

@echo ' dir/file.[ois] - Build specified target only'

1292

@echo ' dir/file.ko - Build module including final link'

1292

@echo ' dir/file.ko - Build module including final link'

1293

@echo ' prepare - Set up for building external modules'

1293

@echo ' prepare - Set up for building external modules'

1294

@echo ' tags/TAGS - Generate tags file for editors'

1294

@echo ' tags/TAGS - Generate tags file for editors'

1295

@echo ' cscope - Generate cscope index'

1295

@echo ' cscope - Generate cscope index'

1296

@echo ' kernelrelease - Output the release version string'

1296

@echo ' kernelrelease - Output the release version string'

1297

@echo ' kernelversion - Output the version stored in Makefile'

1297

@echo ' kernelversion - Output the version stored in Makefile'

1298

@echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \

1298

@echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \

1299

echo ' (default: $(INSTALL_HDR_PATH))'; \

1299

echo ' (default: $(INSTALL_HDR_PATH))'; \

1300

echo ''

1300

echo ''

1301

@echo 'Static analysers'

1301

@echo 'Static analysers'

1302

@echo ' checkstack - Generate a list of stack hogs'

1302

@echo ' checkstack - Generate a list of stack hogs'

1303

@echo ' namespacecheck - Name space analysis on compiled kernel'

1303

@echo ' namespacecheck - Name space analysis on compiled kernel'

1304

@echo ' versioncheck - Sanity check on version.h usage'

1304

@echo ' versioncheck - Sanity check on version.h usage'

1305

@echo ' includecheck - Check for duplicate included header files'

1305

@echo ' includecheck - Check for duplicate included header files'

1306

@echo ' export_report - List the usages of all exported symbols'

1306

@echo ' export_report - List the usages of all exported symbols'

1307

@echo ' headers_check - Sanity check on exported headers'

1307

@echo ' headers_check - Sanity check on exported headers'

1308

@echo ' headerdep - Detect inclusion cycles in headers'; \

1308

@echo ' headerdep - Detect inclusion cycles in headers'; \

1309

echo ''

1309

echo ''

1310

@echo 'Kernel packaging:'

1310

@echo 'Kernel packaging:'

1311

@$(MAKE) $(build)=$(package-dir) help

1311

@$(MAKE) $(build)=$(package-dir) help

1312

@echo ''

1312

@echo ''

1313

@echo 'Documentation targets:'

1313

@echo 'Documentation targets:'

1314

@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp

1314

@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp

1315

@echo ''

1315

@echo ''

1316

@echo 'Architecture specific targets ($(SRCARCH)):'

1316

@echo 'Architecture specific targets ($(SRCARCH)):'

1317

@$(if $(archhelp),$(archhelp),\

1317

@$(if $(archhelp),$(archhelp),\

1318

echo ' No architecture specific help defined for $(SRCARCH)')

1318

echo ' No architecture specific help defined for $(SRCARCH)')

1319

@echo ''

1319

@echo ''

1320

@$(if $(boards), \

1320

@$(if $(boards), \

1321

$(foreach b, $(boards), \

1321

$(foreach b, $(boards), \

1322

printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \

1322

printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \

1323

echo '')

1323

echo '')

1324

@$(if $(board-dirs), \

1324

@$(if $(board-dirs), \

1325

$(foreach b, $(board-dirs), \

1325

$(foreach b, $(board-dirs), \

1326

printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \

1326

printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \

1327

printf " %-16s - Show all of the above\\n" help-boards; \

1327

printf " %-16s - Show all of the above\\n" help-boards; \

1328

echo '')

1328

echo '')

1329

1330

@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'

1330

@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'

1331

@echo ' make V=2 [targets] 2 => give reason for rebuild of target'

1331

@echo ' make V=2 [targets] 2 => give reason for rebuild of target'

1332

@echo ' make O=dir [targets] Locate all output files in "dir", including .config'

1332

@echo ' make O=dir [targets] Locate all output files in "dir", including .config'

1333

@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'

1333

@echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)'

1334

@echo ' make C=2 [targets] Force check of all c source with $$CHECK'

1334

@echo ' make C=2 [targets] Force check of all c source with $$CHECK'

1335

@echo ''

1335

@echo ''

1336

@echo 'Execute "make" or "make all" to build all targets marked with [*] '

1336

@echo 'Execute "make" or "make all" to build all targets marked with [*] '

1337

@echo 'For further info see the ./README file'

1337

@echo 'For further info see the ./README file'

1338

1339

1340

help-board-dirs := $(addprefix help-,$(board-dirs))

1340

help-board-dirs := $(addprefix help-,$(board-dirs))

1341

1342

help-boards: $(help-board-dirs)

1342

help-boards: $(help-board-dirs)

1343

1344

boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))

1344

boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))

1345

1346

$(help-board-dirs): help-%:

1346

$(help-board-dirs): help-%:

1347

@echo 'Architecture specific targets ($(SRCARCH) $*):'

1347

@echo 'Architecture specific targets ($(SRCARCH) $*):'

1348

@$(if $(boards-per-dir), \

1348

@$(if $(boards-per-dir), \

1349

$(foreach b, $(boards-per-dir), \

1349

$(foreach b, $(boards-per-dir), \

1350

printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \

1350

printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \

1351

echo '')

1351

echo '')

1352

1353

1354

# Documentation targets

1354

# Documentation targets

1355

# ---------------------------------------------------------------------------

1355

# ---------------------------------------------------------------------------

1356

%docs: scripts_basic FORCE

1356

%docs: scripts_basic FORCE

1357

$(Q)$(MAKE) $(build)=Documentation/DocBook $@

1357

$(Q)$(MAKE) $(build)=Documentation/DocBook $@

1358

1359

else # KBUILD_EXTMOD

1359

else # KBUILD_EXTMOD

1360

1361

###

1361

###

1362

# External module support.

1362

# External module support.

1363

# When building external modules the kernel used as basis is considered

1363

# When building external modules the kernel used as basis is considered

1364

# read-only, and no consistency checks are made and the make

1364

# read-only, and no consistency checks are made and the make

1365

# system is not used on the basis kernel. If updates are required

1365

# system is not used on the basis kernel. If updates are required

1366

# in the basis kernel ordinary make commands (without M=...) must

1366

# in the basis kernel ordinary make commands (without M=...) must

1367

# be used.

1367

# be used.

1368

#

1368

#

1369

# The following are the only valid targets when building external

1369

# The following are the only valid targets when building external

1370

# modules.

1370

# modules.

1371

# make M=dir clean Delete all automatically generated files

1371

# make M=dir clean Delete all automatically generated files

1372

# make M=dir modules Make all modules in specified dir

1372

# make M=dir modules Make all modules in specified dir

1373

# make M=dir Same as 'make M=dir modules'

1373

# make M=dir Same as 'make M=dir modules'

1374

# make M=dir modules_install

1374

# make M=dir modules_install

1375

# Install the modules built in the module directory

1375

# Install the modules built in the module directory

1376

# Assumes install directory is already created

1376

# Assumes install directory is already created

1377

1378

# We are always building modules

1378

# We are always building modules

1379

KBUILD_MODULES := 1

1379

KBUILD_MODULES := 1

1380

PHONY += crmodverdir

1380

PHONY += crmodverdir

1381

crmodverdir:

1381

crmodverdir:

1382

$(cmd_crmodverdir)

1382

$(cmd_crmodverdir)

1383

1384

PHONY += $(objtree)/Module.symvers

1384

PHONY += $(objtree)/Module.symvers

1385

$(objtree)/Module.symvers:

1385

$(objtree)/Module.symvers:

1386

@test -e $(objtree)/Module.symvers || ( \

1386

@test -e $(objtree)/Module.symvers || ( \

1387

echo; \

1387

echo; \

1388

echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \

1388

echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \

1389

echo " is missing; modules will have no dependencies and modversions."; \

1389

echo " is missing; modules will have no dependencies and modversions."; \

1390

echo )

1390

echo )

1391

1392

module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))

1392

module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD))

1393

PHONY += $(module-dirs) modules

1393

PHONY += $(module-dirs) modules

1394

$(module-dirs): crmodverdir $(objtree)/Module.symvers

1394

$(module-dirs): crmodverdir $(objtree)/Module.symvers

1395

$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)

1395

$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)

1396

1397

modules: $(module-dirs)

1397

modules: $(module-dirs)

1398

@$(kecho) ' Building modules, stage 2.';

1398

@$(kecho) ' Building modules, stage 2.';

1399

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost

1399

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost

1400

1401

PHONY += modules_install

1401

PHONY += modules_install

1402

modules_install: _emodinst_ _emodinst_post

1402

modules_install: _emodinst_ _emodinst_post

1403

1404

install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)

1404

install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)

1405

PHONY += _emodinst_

1405

PHONY += _emodinst_

1406

_emodinst_:

1406

_emodinst_:

1407

$(Q)mkdir -p $(MODLIB)/$(install-dir)

1407

$(Q)mkdir -p $(MODLIB)/$(install-dir)

1408

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst

1408

$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst

1409

1410

PHONY += _emodinst_post

1410

PHONY += _emodinst_post

1411

_emodinst_post: _emodinst_

1411

_emodinst_post: _emodinst_

1412

$(call cmd,depmod)

1412

$(call cmd,depmod)

1413

1414

clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))

1414

clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))

1415

1416

PHONY += $(clean-dirs) clean

1416

PHONY += $(clean-dirs) clean

1417

$(clean-dirs):

1417

$(clean-dirs):

1418

$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)

1418

$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)

1419

1420

clean: rm-dirs := $(MODVERDIR)

1420

clean: rm-dirs := $(MODVERDIR)

1421

clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers

1421

clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers

1422

clean: $(clean-dirs)

1422

clean: $(clean-dirs)

1423

$(call cmd,rmdirs)

1423

$(call cmd,rmdirs)

1424

$(call cmd,rmfiles)

1424

$(call cmd,rmfiles)

1425

@find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \

1425

@find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \

1426

\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \

1426

\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \

1427

-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \

1427

-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \

1428

-type f -print | xargs rm -f

1428

-type f -print | xargs rm -f

1429

1430

help:

1430

help:

1431

@echo ' Building external modules.'

1431

@echo ' Building external modules.'

1432

@echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'

1432

@echo ' Syntax: make -C path/to/kernel/src M=$$PWD target'

1433

@echo ''

1433

@echo ''

1434

@echo ' modules - default target, build the module(s)'

1434

@echo ' modules - default target, build the module(s)'

1435

@echo ' modules_install - install the module'

1435

@echo ' modules_install - install the module'

1436

@echo ' clean - remove generated files in module directory only'

1436

@echo ' clean - remove generated files in module directory only'

1437

@echo ''

1437

@echo ''

1438

1439

# Dummies...

1439

# Dummies...

1440

PHONY += prepare scripts

1440

PHONY += prepare scripts

1441

prepare: ;

1441

prepare: ;

1442

scripts: ;

1442

scripts: ;

1443

endif # KBUILD_EXTMOD

1443

endif # KBUILD_EXTMOD

1444

1445

# Generate tags for editors

1445

# Generate tags for editors

1446

# ---------------------------------------------------------------------------

1446

# ---------------------------------------------------------------------------

1447

quiet_cmd_tags = GEN $@

1447

quiet_cmd_tags = GEN $@

1448

cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@

1448

cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@

1449

1450

tags TAGS cscope: FORCE

1450

tags TAGS cscope: FORCE

1451

$(call cmd,tags)

1451

$(call cmd,tags)

1452

1453

# Scripts to check various things for consistency

1453

# Scripts to check various things for consistency

1454

# ---------------------------------------------------------------------------

1454

# ---------------------------------------------------------------------------

1455

1456

includecheck:

1456

includecheck:

1457

find * $(RCS_FIND_IGNORE) \

1457

find * $(RCS_FIND_IGNORE) \

1458

-name '*.[hcS]' -type f -print | sort \

1458

-name '*.[hcS]' -type f -print | sort \

1459

| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl

1459

| xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl

1460

1461

versioncheck:

1461

versioncheck:

1462

find * $(RCS_FIND_IGNORE) \

1462

find * $(RCS_FIND_IGNORE) \

1463

-name '*.[hcS]' -type f -print | sort \

1463

-name '*.[hcS]' -type f -print | sort \

1464

| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl

1464

| xargs $(PERL) -w $(srctree)/scripts/checkversion.pl

1465

1466

namespacecheck:

1466

namespacecheck:

1467

$(PERL) $(srctree)/scripts/namespace.pl

1467

$(PERL) $(srctree)/scripts/namespace.pl

1468

1469

export_report:

1469

export_report:

1470

$(PERL) $(srctree)/scripts/export_report.pl

1470

$(PERL) $(srctree)/scripts/export_report.pl

1471

1472

endif #ifeq ($(config-targets),1)

1472

endif #ifeq ($(config-targets),1)

1473

endif #ifeq ($(mixed-targets),1)

1473

endif #ifeq ($(mixed-targets),1)

1474

1475

PHONY += checkstack kernelrelease kernelversion

1475

PHONY += checkstack kernelrelease kernelversion

1476

1477

# UML needs a little special treatment here. It wants to use the host

1477

# UML needs a little special treatment here. It wants to use the host

1478

# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone

1478

# toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone

1479

# else wants $(ARCH), including people doing cross-builds, which means

1479

# else wants $(ARCH), including people doing cross-builds, which means

1480

# that $(SUBARCH) doesn't work here.

1480

# that $(SUBARCH) doesn't work here.

1481

ifeq ($(ARCH), um)

1481

ifeq ($(ARCH), um)

1482

CHECKSTACK_ARCH := $(SUBARCH)

1482

CHECKSTACK_ARCH := $(SUBARCH)

1483

else

1483

else

1484

CHECKSTACK_ARCH := $(ARCH)

1484

CHECKSTACK_ARCH := $(ARCH)

1485

endif

1485

endif

1486

checkstack:

1486

checkstack:

1487

$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \

1487

$(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \

1488

$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)

1488

$(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH)

1489

1490

kernelrelease:

1490

kernelrelease:

1491

$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \

1491

$(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \

1492

$(error kernelrelease not valid - run 'make prepare' to update it))

1492

$(error kernelrelease not valid - run 'make prepare' to update it))

1493

kernelversion:

1493

kernelversion:

1494

@echo $(KERNELVERSION)

1494

@echo $(KERNELVERSION)

1495

1496

# Single targets

1496

# Single targets

1497

# ---------------------------------------------------------------------------

1497

# ---------------------------------------------------------------------------

1498

# Single targets are compatible with:

1498

# Single targets are compatible with:

1499

# - build with mixed source and output

1499

# - build with mixed source and output

1500

# - build with separate output dir 'make O=...'

1500

# - build with separate output dir 'make O=...'

1501

# - external modules

1501

# - external modules

1502

#

1502

#

1503

# target-dir => where to store outputfile

1503

# target-dir => where to store outputfile

1504

# build-dir => directory in kernel source tree to use

1504

# build-dir => directory in kernel source tree to use

1505

1506

ifeq ($(KBUILD_EXTMOD),)

1506

ifeq ($(KBUILD_EXTMOD),)

1507

build-dir = $(patsubst %/,%,$(dir $@))

1507

build-dir = $(patsubst %/,%,$(dir $@))

1508

target-dir = $(dir $@)

1508

target-dir = $(dir $@)

1509

else

1509

else

1510

zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))

1510

zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))

1511

build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))

1511

build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))

1512

target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))

1512

target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@))

1513

endif

1513

endif

1514

1515

%.s: %.c prepare scripts FORCE

1515

%.s: %.c prepare scripts FORCE

1516