Commit e5c9f0bba1c8efb828fbc895f9ff436bcd7cac61
1 parent
bdb39ccebc
Linux 3.18.8
Showing 1 changed file with 1 additions and 1 deletions Inline Diff
Makefile
1 | VERSION = 3 | 1 | VERSION = 3 |
2 | PATCHLEVEL = 18 | 2 | PATCHLEVEL = 18 |
3 | SUBLEVEL = 7 | 3 | SUBLEVEL = 8 |
4 | EXTRAVERSION = | 4 | EXTRAVERSION = |
5 | NAME = Diseased Newt | 5 | NAME = Diseased Newt |
6 | 6 | ||
7 | # *DOCUMENTATION* | 7 | # *DOCUMENTATION* |
8 | # To see a list of typical targets execute "make help" | 8 | # To see a list of typical targets execute "make help" |
9 | # More info can be located in ./README | 9 | # More info can be located in ./README |
10 | # Comments in this file are targeted only to the developer, do not | 10 | # Comments in this file are targeted only to the developer, do not |
11 | # expect to learn how to build the kernel reading this file. | 11 | # expect to learn how to build the kernel reading this file. |
12 | 12 | ||
13 | # Do not use make's built-in rules and variables | 13 | # Do not use make's built-in rules and variables |
14 | # (this increases performance and avoids hard-to-debug behaviour); | 14 | # (this increases performance and avoids hard-to-debug behaviour); |
15 | MAKEFLAGS += -rR | 15 | MAKEFLAGS += -rR |
16 | 16 | ||
17 | # Avoid funny character set dependencies | 17 | # Avoid funny character set dependencies |
18 | unexport LC_ALL | 18 | unexport LC_ALL |
19 | LC_COLLATE=C | 19 | LC_COLLATE=C |
20 | LC_NUMERIC=C | 20 | LC_NUMERIC=C |
21 | export LC_COLLATE LC_NUMERIC | 21 | export LC_COLLATE LC_NUMERIC |
22 | 22 | ||
23 | # Avoid interference with shell env settings | 23 | # Avoid interference with shell env settings |
24 | unexport GREP_OPTIONS | 24 | unexport GREP_OPTIONS |
25 | 25 | ||
26 | # We are using a recursive build, so we need to do a little thinking | 26 | # We are using a recursive build, so we need to do a little thinking |
27 | # to get the ordering right. | 27 | # to get the ordering right. |
28 | # | 28 | # |
29 | # Most importantly: sub-Makefiles should only ever modify files in | 29 | # Most importantly: sub-Makefiles should only ever modify files in |
30 | # their own directory. If in some directory we have a dependency on | 30 | # their own directory. If in some directory we have a dependency on |
31 | # a file in another dir (which doesn't happen often, but it's often | 31 | # a file in another dir (which doesn't happen often, but it's often |
32 | # unavoidable when linking the built-in.o targets which finally | 32 | # unavoidable when linking the built-in.o targets which finally |
33 | # turn into vmlinux), we will call a sub make in that other dir, and | 33 | # turn into vmlinux), we will call a sub make in that other dir, and |
34 | # after that we are sure that everything which is in that other dir | 34 | # after that we are sure that everything which is in that other dir |
35 | # is now up to date. | 35 | # is now up to date. |
36 | # | 36 | # |
37 | # The only cases where we need to modify files which have global | 37 | # The only cases where we need to modify files which have global |
38 | # effects are thus separated out and done before the recursive | 38 | # effects are thus separated out and done before the recursive |
39 | # descending is started. They are now explicitly listed as the | 39 | # descending is started. They are now explicitly listed as the |
40 | # prepare rule. | 40 | # prepare rule. |
41 | 41 | ||
42 | # Beautify output | 42 | # Beautify output |
43 | # --------------------------------------------------------------------------- | 43 | # --------------------------------------------------------------------------- |
44 | # | 44 | # |
45 | # Normally, we echo the whole command before executing it. By making | 45 | # Normally, we echo the whole command before executing it. By making |
46 | # that echo $($(quiet)$(cmd)), we now have the possibility to set | 46 | # that echo $($(quiet)$(cmd)), we now have the possibility to set |
47 | # $(quiet) to choose other forms of output instead, e.g. | 47 | # $(quiet) to choose other forms of output instead, e.g. |
48 | # | 48 | # |
49 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ | 49 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ |
50 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< | 50 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< |
51 | # | 51 | # |
52 | # If $(quiet) is empty, the whole command will be printed. | 52 | # If $(quiet) is empty, the whole command will be printed. |
53 | # If it is set to "quiet_", only the short version will be printed. | 53 | # If it is set to "quiet_", only the short version will be printed. |
54 | # If it is set to "silent_", nothing will be printed at all, since | 54 | # If it is set to "silent_", nothing will be printed at all, since |
55 | # the variable $(silent_cmd_cc_o_c) doesn't exist. | 55 | # the variable $(silent_cmd_cc_o_c) doesn't exist. |
56 | # | 56 | # |
57 | # A simple variant is to prefix commands with $(Q) - that's useful | 57 | # A simple variant is to prefix commands with $(Q) - that's useful |
58 | # for commands that shall be hidden in non-verbose mode. | 58 | # for commands that shall be hidden in non-verbose mode. |
59 | # | 59 | # |
60 | # $(Q)ln $@ :< | 60 | # $(Q)ln $@ :< |
61 | # | 61 | # |
62 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. | 62 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. |
63 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. | 63 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. |
64 | # | 64 | # |
65 | # To put more focus on warnings, be less verbose as default | 65 | # To put more focus on warnings, be less verbose as default |
66 | # Use 'make V=1' to see the full commands | 66 | # Use 'make V=1' to see the full commands |
67 | 67 | ||
68 | ifeq ("$(origin V)", "command line") | 68 | ifeq ("$(origin V)", "command line") |
69 | KBUILD_VERBOSE = $(V) | 69 | KBUILD_VERBOSE = $(V) |
70 | endif | 70 | endif |
71 | ifndef KBUILD_VERBOSE | 71 | ifndef KBUILD_VERBOSE |
72 | KBUILD_VERBOSE = 0 | 72 | KBUILD_VERBOSE = 0 |
73 | endif | 73 | endif |
74 | 74 | ||
75 | ifeq ($(KBUILD_VERBOSE),1) | 75 | ifeq ($(KBUILD_VERBOSE),1) |
76 | quiet = | 76 | quiet = |
77 | Q = | 77 | Q = |
78 | else | 78 | else |
79 | quiet=quiet_ | 79 | quiet=quiet_ |
80 | Q = @ | 80 | Q = @ |
81 | endif | 81 | endif |
82 | 82 | ||
83 | # If the user is running make -s (silent mode), suppress echoing of | 83 | # If the user is running make -s (silent mode), suppress echoing of |
84 | # commands | 84 | # commands |
85 | 85 | ||
86 | ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 | 86 | ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 |
87 | ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) | 87 | ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) |
88 | quiet=silent_ | 88 | quiet=silent_ |
89 | endif | 89 | endif |
90 | else # make-3.8x | 90 | else # make-3.8x |
91 | ifneq ($(filter s% -s%,$(MAKEFLAGS)),) | 91 | ifneq ($(filter s% -s%,$(MAKEFLAGS)),) |
92 | quiet=silent_ | 92 | quiet=silent_ |
93 | endif | 93 | endif |
94 | endif | 94 | endif |
95 | 95 | ||
96 | export quiet Q KBUILD_VERBOSE | 96 | export quiet Q KBUILD_VERBOSE |
97 | 97 | ||
98 | # kbuild supports saving output files in a separate directory. | 98 | # kbuild supports saving output files in a separate directory. |
99 | # To locate output files in a separate directory two syntaxes are supported. | 99 | # To locate output files in a separate directory two syntaxes are supported. |
100 | # In both cases the working directory must be the root of the kernel src. | 100 | # In both cases the working directory must be the root of the kernel src. |
101 | # 1) O= | 101 | # 1) O= |
102 | # Use "make O=dir/to/store/output/files/" | 102 | # Use "make O=dir/to/store/output/files/" |
103 | # | 103 | # |
104 | # 2) Set KBUILD_OUTPUT | 104 | # 2) Set KBUILD_OUTPUT |
105 | # Set the environment variable KBUILD_OUTPUT to point to the directory | 105 | # Set the environment variable KBUILD_OUTPUT to point to the directory |
106 | # where the output files shall be placed. | 106 | # where the output files shall be placed. |
107 | # export KBUILD_OUTPUT=dir/to/store/output/files/ | 107 | # export KBUILD_OUTPUT=dir/to/store/output/files/ |
108 | # make | 108 | # make |
109 | # | 109 | # |
110 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment | 110 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment |
111 | # variable. | 111 | # variable. |
112 | 112 | ||
113 | # KBUILD_SRC is set on invocation of make in OBJ directory | 113 | # KBUILD_SRC is set on invocation of make in OBJ directory |
114 | # KBUILD_SRC is not intended to be used by the regular user (for now) | 114 | # KBUILD_SRC is not intended to be used by the regular user (for now) |
115 | ifeq ($(KBUILD_SRC),) | 115 | ifeq ($(KBUILD_SRC),) |
116 | 116 | ||
117 | # OK, Make called in directory where kernel src resides | 117 | # OK, Make called in directory where kernel src resides |
118 | # Do we want to locate output files in a separate directory? | 118 | # Do we want to locate output files in a separate directory? |
119 | ifeq ("$(origin O)", "command line") | 119 | ifeq ("$(origin O)", "command line") |
120 | KBUILD_OUTPUT := $(O) | 120 | KBUILD_OUTPUT := $(O) |
121 | endif | 121 | endif |
122 | 122 | ||
123 | # That's our default target when none is given on the command line | 123 | # That's our default target when none is given on the command line |
124 | PHONY := _all | 124 | PHONY := _all |
125 | _all: | 125 | _all: |
126 | 126 | ||
127 | # Cancel implicit rules on top Makefile | 127 | # Cancel implicit rules on top Makefile |
128 | $(CURDIR)/Makefile Makefile: ; | 128 | $(CURDIR)/Makefile Makefile: ; |
129 | 129 | ||
130 | ifneq ($(KBUILD_OUTPUT),) | 130 | ifneq ($(KBUILD_OUTPUT),) |
131 | # Invoke a second make in the output directory, passing relevant variables | 131 | # Invoke a second make in the output directory, passing relevant variables |
132 | # check that the output directory actually exists | 132 | # check that the output directory actually exists |
133 | saved-output := $(KBUILD_OUTPUT) | 133 | saved-output := $(KBUILD_OUTPUT) |
134 | KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ | 134 | KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ |
135 | && /bin/pwd) | 135 | && /bin/pwd) |
136 | $(if $(KBUILD_OUTPUT),, \ | 136 | $(if $(KBUILD_OUTPUT),, \ |
137 | $(error failed to create output directory "$(saved-output)")) | 137 | $(error failed to create output directory "$(saved-output)")) |
138 | 138 | ||
139 | PHONY += $(MAKECMDGOALS) sub-make | 139 | PHONY += $(MAKECMDGOALS) sub-make |
140 | 140 | ||
141 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make | 141 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make |
142 | @: | 142 | @: |
143 | 143 | ||
144 | sub-make: FORCE | 144 | sub-make: FORCE |
145 | $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ | 145 | $(Q)$(MAKE) -C $(KBUILD_OUTPUT) KBUILD_SRC=$(CURDIR) \ |
146 | -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) | 146 | -f $(CURDIR)/Makefile $(filter-out _all sub-make,$(MAKECMDGOALS)) |
147 | 147 | ||
148 | # Leave processing to above invocation of make | 148 | # Leave processing to above invocation of make |
149 | skip-makefile := 1 | 149 | skip-makefile := 1 |
150 | endif # ifneq ($(KBUILD_OUTPUT),) | 150 | endif # ifneq ($(KBUILD_OUTPUT),) |
151 | endif # ifeq ($(KBUILD_SRC),) | 151 | endif # ifeq ($(KBUILD_SRC),) |
152 | 152 | ||
153 | # We process the rest of the Makefile if this is the final invocation of make | 153 | # We process the rest of the Makefile if this is the final invocation of make |
154 | ifeq ($(skip-makefile),) | 154 | ifeq ($(skip-makefile),) |
155 | 155 | ||
156 | # Do not print "Entering directory ...", | 156 | # Do not print "Entering directory ...", |
157 | # but we want to display it when entering to the output directory | 157 | # but we want to display it when entering to the output directory |
158 | # so that IDEs/editors are able to understand relative filenames. | 158 | # so that IDEs/editors are able to understand relative filenames. |
159 | MAKEFLAGS += --no-print-directory | 159 | MAKEFLAGS += --no-print-directory |
160 | 160 | ||
161 | # Call a source code checker (by default, "sparse") as part of the | 161 | # Call a source code checker (by default, "sparse") as part of the |
162 | # C compilation. | 162 | # C compilation. |
163 | # | 163 | # |
164 | # Use 'make C=1' to enable checking of only re-compiled files. | 164 | # Use 'make C=1' to enable checking of only re-compiled files. |
165 | # Use 'make C=2' to enable checking of *all* source files, regardless | 165 | # Use 'make C=2' to enable checking of *all* source files, regardless |
166 | # of whether they are re-compiled or not. | 166 | # of whether they are re-compiled or not. |
167 | # | 167 | # |
168 | # See the file "Documentation/sparse.txt" for more details, including | 168 | # See the file "Documentation/sparse.txt" for more details, including |
169 | # where to get the "sparse" utility. | 169 | # where to get the "sparse" utility. |
170 | 170 | ||
171 | ifeq ("$(origin C)", "command line") | 171 | ifeq ("$(origin C)", "command line") |
172 | KBUILD_CHECKSRC = $(C) | 172 | KBUILD_CHECKSRC = $(C) |
173 | endif | 173 | endif |
174 | ifndef KBUILD_CHECKSRC | 174 | ifndef KBUILD_CHECKSRC |
175 | KBUILD_CHECKSRC = 0 | 175 | KBUILD_CHECKSRC = 0 |
176 | endif | 176 | endif |
177 | 177 | ||
178 | # Use make M=dir to specify directory of external module to build | 178 | # Use make M=dir to specify directory of external module to build |
179 | # Old syntax make ... SUBDIRS=$PWD is still supported | 179 | # Old syntax make ... SUBDIRS=$PWD is still supported |
180 | # Setting the environment variable KBUILD_EXTMOD take precedence | 180 | # Setting the environment variable KBUILD_EXTMOD take precedence |
181 | ifdef SUBDIRS | 181 | ifdef SUBDIRS |
182 | KBUILD_EXTMOD ?= $(SUBDIRS) | 182 | KBUILD_EXTMOD ?= $(SUBDIRS) |
183 | endif | 183 | endif |
184 | 184 | ||
185 | ifeq ("$(origin M)", "command line") | 185 | ifeq ("$(origin M)", "command line") |
186 | KBUILD_EXTMOD := $(M) | 186 | KBUILD_EXTMOD := $(M) |
187 | endif | 187 | endif |
188 | 188 | ||
189 | # If building an external module we do not care about the all: rule | 189 | # If building an external module we do not care about the all: rule |
190 | # but instead _all depend on modules | 190 | # but instead _all depend on modules |
191 | PHONY += all | 191 | PHONY += all |
192 | ifeq ($(KBUILD_EXTMOD),) | 192 | ifeq ($(KBUILD_EXTMOD),) |
193 | _all: all | 193 | _all: all |
194 | else | 194 | else |
195 | _all: modules | 195 | _all: modules |
196 | endif | 196 | endif |
197 | 197 | ||
198 | ifeq ($(KBUILD_SRC),) | 198 | ifeq ($(KBUILD_SRC),) |
199 | # building in the source tree | 199 | # building in the source tree |
200 | srctree := . | 200 | srctree := . |
201 | else | 201 | else |
202 | ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) | 202 | ifeq ($(KBUILD_SRC)/,$(dir $(CURDIR))) |
203 | # building in a subdirectory of the source tree | 203 | # building in a subdirectory of the source tree |
204 | srctree := .. | 204 | srctree := .. |
205 | else | 205 | else |
206 | srctree := $(KBUILD_SRC) | 206 | srctree := $(KBUILD_SRC) |
207 | endif | 207 | endif |
208 | endif | 208 | endif |
209 | objtree := . | 209 | objtree := . |
210 | src := $(srctree) | 210 | src := $(srctree) |
211 | obj := $(objtree) | 211 | obj := $(objtree) |
212 | 212 | ||
213 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) | 213 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) |
214 | 214 | ||
215 | export srctree objtree VPATH | 215 | export srctree objtree VPATH |
216 | 216 | ||
217 | 217 | ||
218 | # SUBARCH tells the usermode build what the underlying arch is. That is set | 218 | # SUBARCH tells the usermode build what the underlying arch is. That is set |
219 | # first, and if a usermode build is happening, the "ARCH=um" on the command | 219 | # first, and if a usermode build is happening, the "ARCH=um" on the command |
220 | # line overrides the setting of ARCH below. If a native build is happening, | 220 | # line overrides the setting of ARCH below. If a native build is happening, |
221 | # then ARCH is assigned, getting whatever value it gets normally, and | 221 | # then ARCH is assigned, getting whatever value it gets normally, and |
222 | # SUBARCH is subsequently ignored. | 222 | # SUBARCH is subsequently ignored. |
223 | 223 | ||
224 | SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ | 224 | SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ |
225 | -e s/sun4u/sparc64/ \ | 225 | -e s/sun4u/sparc64/ \ |
226 | -e s/arm.*/arm/ -e s/sa110/arm/ \ | 226 | -e s/arm.*/arm/ -e s/sa110/arm/ \ |
227 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ | 227 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ |
228 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ | 228 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ |
229 | -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ ) | 229 | -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ ) |
230 | 230 | ||
231 | # Cross compiling and selecting different set of gcc/bin-utils | 231 | # Cross compiling and selecting different set of gcc/bin-utils |
232 | # --------------------------------------------------------------------------- | 232 | # --------------------------------------------------------------------------- |
233 | # | 233 | # |
234 | # When performing cross compilation for other architectures ARCH shall be set | 234 | # When performing cross compilation for other architectures ARCH shall be set |
235 | # to the target architecture. (See arch/* for the possibilities). | 235 | # to the target architecture. (See arch/* for the possibilities). |
236 | # ARCH can be set during invocation of make: | 236 | # ARCH can be set during invocation of make: |
237 | # make ARCH=ia64 | 237 | # make ARCH=ia64 |
238 | # Another way is to have ARCH set in the environment. | 238 | # Another way is to have ARCH set in the environment. |
239 | # The default ARCH is the host where make is executed. | 239 | # The default ARCH is the host where make is executed. |
240 | 240 | ||
241 | # CROSS_COMPILE specify the prefix used for all executables used | 241 | # CROSS_COMPILE specify the prefix used for all executables used |
242 | # during compilation. Only gcc and related bin-utils executables | 242 | # during compilation. Only gcc and related bin-utils executables |
243 | # are prefixed with $(CROSS_COMPILE). | 243 | # are prefixed with $(CROSS_COMPILE). |
244 | # CROSS_COMPILE can be set on the command line | 244 | # CROSS_COMPILE can be set on the command line |
245 | # make CROSS_COMPILE=ia64-linux- | 245 | # make CROSS_COMPILE=ia64-linux- |
246 | # Alternatively CROSS_COMPILE can be set in the environment. | 246 | # Alternatively CROSS_COMPILE can be set in the environment. |
247 | # A third alternative is to store a setting in .config so that plain | 247 | # A third alternative is to store a setting in .config so that plain |
248 | # "make" in the configured kernel build directory always uses that. | 248 | # "make" in the configured kernel build directory always uses that. |
249 | # Default value for CROSS_COMPILE is not to prefix executables | 249 | # Default value for CROSS_COMPILE is not to prefix executables |
250 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile | 250 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile |
251 | ARCH ?= $(SUBARCH) | 251 | ARCH ?= $(SUBARCH) |
252 | CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) | 252 | CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) |
253 | 253 | ||
254 | # Architecture as present in compile.h | 254 | # Architecture as present in compile.h |
255 | UTS_MACHINE := $(ARCH) | 255 | UTS_MACHINE := $(ARCH) |
256 | SRCARCH := $(ARCH) | 256 | SRCARCH := $(ARCH) |
257 | 257 | ||
258 | # Additional ARCH settings for x86 | 258 | # Additional ARCH settings for x86 |
259 | ifeq ($(ARCH),i386) | 259 | ifeq ($(ARCH),i386) |
260 | SRCARCH := x86 | 260 | SRCARCH := x86 |
261 | endif | 261 | endif |
262 | ifeq ($(ARCH),x86_64) | 262 | ifeq ($(ARCH),x86_64) |
263 | SRCARCH := x86 | 263 | SRCARCH := x86 |
264 | endif | 264 | endif |
265 | 265 | ||
266 | # Additional ARCH settings for sparc | 266 | # Additional ARCH settings for sparc |
267 | ifeq ($(ARCH),sparc32) | 267 | ifeq ($(ARCH),sparc32) |
268 | SRCARCH := sparc | 268 | SRCARCH := sparc |
269 | endif | 269 | endif |
270 | ifeq ($(ARCH),sparc64) | 270 | ifeq ($(ARCH),sparc64) |
271 | SRCARCH := sparc | 271 | SRCARCH := sparc |
272 | endif | 272 | endif |
273 | 273 | ||
274 | # Additional ARCH settings for sh | 274 | # Additional ARCH settings for sh |
275 | ifeq ($(ARCH),sh64) | 275 | ifeq ($(ARCH),sh64) |
276 | SRCARCH := sh | 276 | SRCARCH := sh |
277 | endif | 277 | endif |
278 | 278 | ||
279 | # Additional ARCH settings for tile | 279 | # Additional ARCH settings for tile |
280 | ifeq ($(ARCH),tilepro) | 280 | ifeq ($(ARCH),tilepro) |
281 | SRCARCH := tile | 281 | SRCARCH := tile |
282 | endif | 282 | endif |
283 | ifeq ($(ARCH),tilegx) | 283 | ifeq ($(ARCH),tilegx) |
284 | SRCARCH := tile | 284 | SRCARCH := tile |
285 | endif | 285 | endif |
286 | 286 | ||
287 | # Where to locate arch specific headers | 287 | # Where to locate arch specific headers |
288 | hdr-arch := $(SRCARCH) | 288 | hdr-arch := $(SRCARCH) |
289 | 289 | ||
290 | KCONFIG_CONFIG ?= .config | 290 | KCONFIG_CONFIG ?= .config |
291 | export KCONFIG_CONFIG | 291 | export KCONFIG_CONFIG |
292 | 292 | ||
293 | # SHELL used by kbuild | 293 | # SHELL used by kbuild |
294 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ | 294 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ |
295 | else if [ -x /bin/bash ]; then echo /bin/bash; \ | 295 | else if [ -x /bin/bash ]; then echo /bin/bash; \ |
296 | else echo sh; fi ; fi) | 296 | else echo sh; fi ; fi) |
297 | 297 | ||
298 | HOSTCC = gcc | 298 | HOSTCC = gcc |
299 | HOSTCXX = g++ | 299 | HOSTCXX = g++ |
300 | HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89 | 300 | HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89 |
301 | HOSTCXXFLAGS = -O2 | 301 | HOSTCXXFLAGS = -O2 |
302 | 302 | ||
303 | ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1) | 303 | ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1) |
304 | HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \ | 304 | HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \ |
305 | -Wno-missing-field-initializers -fno-delete-null-pointer-checks | 305 | -Wno-missing-field-initializers -fno-delete-null-pointer-checks |
306 | endif | 306 | endif |
307 | 307 | ||
308 | # Decide whether to build built-in, modular, or both. | 308 | # Decide whether to build built-in, modular, or both. |
309 | # Normally, just do built-in. | 309 | # Normally, just do built-in. |
310 | 310 | ||
311 | KBUILD_MODULES := | 311 | KBUILD_MODULES := |
312 | KBUILD_BUILTIN := 1 | 312 | KBUILD_BUILTIN := 1 |
313 | 313 | ||
314 | # If we have only "make modules", don't compile built-in objects. | 314 | # If we have only "make modules", don't compile built-in objects. |
315 | # When we're building modules with modversions, we need to consider | 315 | # When we're building modules with modversions, we need to consider |
316 | # the built-in objects during the descend as well, in order to | 316 | # the built-in objects during the descend as well, in order to |
317 | # make sure the checksums are up to date before we record them. | 317 | # make sure the checksums are up to date before we record them. |
318 | 318 | ||
319 | ifeq ($(MAKECMDGOALS),modules) | 319 | ifeq ($(MAKECMDGOALS),modules) |
320 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) | 320 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) |
321 | endif | 321 | endif |
322 | 322 | ||
323 | # If we have "make <whatever> modules", compile modules | 323 | # If we have "make <whatever> modules", compile modules |
324 | # in addition to whatever we do anyway. | 324 | # in addition to whatever we do anyway. |
325 | # Just "make" or "make all" shall build modules as well | 325 | # Just "make" or "make all" shall build modules as well |
326 | 326 | ||
327 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) | 327 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) |
328 | KBUILD_MODULES := 1 | 328 | KBUILD_MODULES := 1 |
329 | endif | 329 | endif |
330 | 330 | ||
331 | ifeq ($(MAKECMDGOALS),) | 331 | ifeq ($(MAKECMDGOALS),) |
332 | KBUILD_MODULES := 1 | 332 | KBUILD_MODULES := 1 |
333 | endif | 333 | endif |
334 | 334 | ||
335 | export KBUILD_MODULES KBUILD_BUILTIN | 335 | export KBUILD_MODULES KBUILD_BUILTIN |
336 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD | 336 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD |
337 | 337 | ||
338 | ifneq ($(CC),) | 338 | ifneq ($(CC),) |
339 | ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1) | 339 | ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1) |
340 | COMPILER := clang | 340 | COMPILER := clang |
341 | else | 341 | else |
342 | COMPILER := gcc | 342 | COMPILER := gcc |
343 | endif | 343 | endif |
344 | export COMPILER | 344 | export COMPILER |
345 | endif | 345 | endif |
346 | 346 | ||
347 | # Look for make include files relative to root of kernel src | 347 | # Look for make include files relative to root of kernel src |
348 | MAKEFLAGS += --include-dir=$(srctree) | 348 | MAKEFLAGS += --include-dir=$(srctree) |
349 | 349 | ||
350 | # We need some generic definitions (do not try to remake the file). | 350 | # We need some generic definitions (do not try to remake the file). |
351 | $(srctree)/scripts/Kbuild.include: ; | 351 | $(srctree)/scripts/Kbuild.include: ; |
352 | include $(srctree)/scripts/Kbuild.include | 352 | include $(srctree)/scripts/Kbuild.include |
353 | 353 | ||
354 | # Make variables (CC, etc...) | 354 | # Make variables (CC, etc...) |
355 | AS = $(CROSS_COMPILE)as | 355 | AS = $(CROSS_COMPILE)as |
356 | LD = $(CROSS_COMPILE)ld | 356 | LD = $(CROSS_COMPILE)ld |
357 | CC = $(CROSS_COMPILE)gcc | 357 | CC = $(CROSS_COMPILE)gcc |
358 | CPP = $(CC) -E | 358 | CPP = $(CC) -E |
359 | AR = $(CROSS_COMPILE)ar | 359 | AR = $(CROSS_COMPILE)ar |
360 | NM = $(CROSS_COMPILE)nm | 360 | NM = $(CROSS_COMPILE)nm |
361 | STRIP = $(CROSS_COMPILE)strip | 361 | STRIP = $(CROSS_COMPILE)strip |
362 | OBJCOPY = $(CROSS_COMPILE)objcopy | 362 | OBJCOPY = $(CROSS_COMPILE)objcopy |
363 | OBJDUMP = $(CROSS_COMPILE)objdump | 363 | OBJDUMP = $(CROSS_COMPILE)objdump |
364 | AWK = awk | 364 | AWK = awk |
365 | GENKSYMS = scripts/genksyms/genksyms | 365 | GENKSYMS = scripts/genksyms/genksyms |
366 | INSTALLKERNEL := installkernel | 366 | INSTALLKERNEL := installkernel |
367 | DEPMOD = /sbin/depmod | 367 | DEPMOD = /sbin/depmod |
368 | PERL = perl | 368 | PERL = perl |
369 | PYTHON = python | 369 | PYTHON = python |
370 | CHECK = sparse | 370 | CHECK = sparse |
371 | 371 | ||
372 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ | 372 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ |
373 | -Wbitwise -Wno-return-void $(CF) | 373 | -Wbitwise -Wno-return-void $(CF) |
374 | CFLAGS_MODULE = | 374 | CFLAGS_MODULE = |
375 | AFLAGS_MODULE = | 375 | AFLAGS_MODULE = |
376 | LDFLAGS_MODULE = | 376 | LDFLAGS_MODULE = |
377 | CFLAGS_KERNEL = | 377 | CFLAGS_KERNEL = |
378 | AFLAGS_KERNEL = | 378 | AFLAGS_KERNEL = |
379 | CFLAGS_GCOV = -fprofile-arcs -ftest-coverage | 379 | CFLAGS_GCOV = -fprofile-arcs -ftest-coverage |
380 | 380 | ||
381 | 381 | ||
382 | # Use USERINCLUDE when you must reference the UAPI directories only. | 382 | # Use USERINCLUDE when you must reference the UAPI directories only. |
383 | USERINCLUDE := \ | 383 | USERINCLUDE := \ |
384 | -I$(srctree)/arch/$(hdr-arch)/include/uapi \ | 384 | -I$(srctree)/arch/$(hdr-arch)/include/uapi \ |
385 | -Iarch/$(hdr-arch)/include/generated/uapi \ | 385 | -Iarch/$(hdr-arch)/include/generated/uapi \ |
386 | -I$(srctree)/include/uapi \ | 386 | -I$(srctree)/include/uapi \ |
387 | -Iinclude/generated/uapi \ | 387 | -Iinclude/generated/uapi \ |
388 | -include $(srctree)/include/linux/kconfig.h | 388 | -include $(srctree)/include/linux/kconfig.h |
389 | 389 | ||
390 | # Use LINUXINCLUDE when you must reference the include/ directory. | 390 | # Use LINUXINCLUDE when you must reference the include/ directory. |
391 | # Needed to be compatible with the O= option | 391 | # Needed to be compatible with the O= option |
392 | LINUXINCLUDE := \ | 392 | LINUXINCLUDE := \ |
393 | -I$(srctree)/arch/$(hdr-arch)/include \ | 393 | -I$(srctree)/arch/$(hdr-arch)/include \ |
394 | -Iarch/$(hdr-arch)/include/generated \ | 394 | -Iarch/$(hdr-arch)/include/generated \ |
395 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ | 395 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ |
396 | -Iinclude \ | 396 | -Iinclude \ |
397 | $(USERINCLUDE) | 397 | $(USERINCLUDE) |
398 | 398 | ||
399 | KBUILD_CPPFLAGS := -D__KERNEL__ | 399 | KBUILD_CPPFLAGS := -D__KERNEL__ |
400 | 400 | ||
401 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ | 401 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
402 | -fno-strict-aliasing -fno-common \ | 402 | -fno-strict-aliasing -fno-common \ |
403 | -Werror-implicit-function-declaration \ | 403 | -Werror-implicit-function-declaration \ |
404 | -Wno-format-security \ | 404 | -Wno-format-security \ |
405 | -std=gnu89 | 405 | -std=gnu89 |
406 | 406 | ||
407 | KBUILD_AFLAGS_KERNEL := | 407 | KBUILD_AFLAGS_KERNEL := |
408 | KBUILD_CFLAGS_KERNEL := | 408 | KBUILD_CFLAGS_KERNEL := |
409 | KBUILD_AFLAGS := -D__ASSEMBLY__ | 409 | KBUILD_AFLAGS := -D__ASSEMBLY__ |
410 | KBUILD_AFLAGS_MODULE := -DMODULE | 410 | KBUILD_AFLAGS_MODULE := -DMODULE |
411 | KBUILD_CFLAGS_MODULE := -DMODULE | 411 | KBUILD_CFLAGS_MODULE := -DMODULE |
412 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds | 412 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds |
413 | 413 | ||
414 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) | 414 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) |
415 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) | 415 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) |
416 | KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) | 416 | KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) |
417 | 417 | ||
418 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION | 418 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
419 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC | 419 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |
420 | export CPP AR NM STRIP OBJCOPY OBJDUMP | 420 | export CPP AR NM STRIP OBJCOPY OBJDUMP |
421 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE | 421 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE |
422 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS | 422 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS |
423 | 423 | ||
424 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS | 424 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
425 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV | 425 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV |
426 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE | 426 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
427 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE | 427 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE |
428 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL | 428 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL |
429 | export KBUILD_ARFLAGS | 429 | export KBUILD_ARFLAGS |
430 | 430 | ||
431 | # When compiling out-of-tree modules, put MODVERDIR in the module | 431 | # When compiling out-of-tree modules, put MODVERDIR in the module |
432 | # tree rather than in the kernel tree. The kernel tree might | 432 | # tree rather than in the kernel tree. The kernel tree might |
433 | # even be read-only. | 433 | # even be read-only. |
434 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions | 434 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions |
435 | 435 | ||
436 | # Files to ignore in find ... statements | 436 | # Files to ignore in find ... statements |
437 | 437 | ||
438 | export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ | 438 | export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ |
439 | -name CVS -o -name .pc -o -name .hg -o -name .git \) \ | 439 | -name CVS -o -name .pc -o -name .hg -o -name .git \) \ |
440 | -prune -o | 440 | -prune -o |
441 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ | 441 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ |
442 | --exclude CVS --exclude .pc --exclude .hg --exclude .git | 442 | --exclude CVS --exclude .pc --exclude .hg --exclude .git |
443 | 443 | ||
444 | # =========================================================================== | 444 | # =========================================================================== |
445 | # Rules shared between *config targets and build targets | 445 | # Rules shared between *config targets and build targets |
446 | 446 | ||
447 | # Basic helpers built in scripts/ | 447 | # Basic helpers built in scripts/ |
448 | PHONY += scripts_basic | 448 | PHONY += scripts_basic |
449 | scripts_basic: | 449 | scripts_basic: |
450 | $(Q)$(MAKE) $(build)=scripts/basic | 450 | $(Q)$(MAKE) $(build)=scripts/basic |
451 | $(Q)rm -f .tmp_quiet_recordmcount | 451 | $(Q)rm -f .tmp_quiet_recordmcount |
452 | 452 | ||
453 | # To avoid any implicit rule to kick in, define an empty command. | 453 | # To avoid any implicit rule to kick in, define an empty command. |
454 | scripts/basic/%: scripts_basic ; | 454 | scripts/basic/%: scripts_basic ; |
455 | 455 | ||
456 | PHONY += outputmakefile | 456 | PHONY += outputmakefile |
457 | # outputmakefile generates a Makefile in the output directory, if using a | 457 | # outputmakefile generates a Makefile in the output directory, if using a |
458 | # separate output directory. This allows convenient use of make in the | 458 | # separate output directory. This allows convenient use of make in the |
459 | # output directory. | 459 | # output directory. |
460 | outputmakefile: | 460 | outputmakefile: |
461 | ifneq ($(KBUILD_SRC),) | 461 | ifneq ($(KBUILD_SRC),) |
462 | $(Q)ln -fsn $(srctree) source | 462 | $(Q)ln -fsn $(srctree) source |
463 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ | 463 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ |
464 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) | 464 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) |
465 | endif | 465 | endif |
466 | 466 | ||
467 | # Support for using generic headers in asm-generic | 467 | # Support for using generic headers in asm-generic |
468 | PHONY += asm-generic | 468 | PHONY += asm-generic |
469 | asm-generic: | 469 | asm-generic: |
470 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ | 470 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ |
471 | src=asm obj=arch/$(SRCARCH)/include/generated/asm | 471 | src=asm obj=arch/$(SRCARCH)/include/generated/asm |
472 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ | 472 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ |
473 | src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm | 473 | src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm |
474 | 474 | ||
475 | # To make sure we do not include .config for any of the *config targets | 475 | # To make sure we do not include .config for any of the *config targets |
476 | # catch them early, and hand them over to scripts/kconfig/Makefile | 476 | # catch them early, and hand them over to scripts/kconfig/Makefile |
477 | # It is allowed to specify more targets when calling make, including | 477 | # It is allowed to specify more targets when calling make, including |
478 | # mixing *config targets and build targets. | 478 | # mixing *config targets and build targets. |
479 | # For example 'make oldconfig all'. | 479 | # For example 'make oldconfig all'. |
480 | # Detect when mixed targets is specified, and make a second invocation | 480 | # Detect when mixed targets is specified, and make a second invocation |
481 | # of make so .config is not included in this case either (for *config). | 481 | # of make so .config is not included in this case either (for *config). |
482 | 482 | ||
483 | version_h := include/generated/uapi/linux/version.h | 483 | version_h := include/generated/uapi/linux/version.h |
484 | 484 | ||
485 | no-dot-config-targets := clean mrproper distclean \ | 485 | no-dot-config-targets := clean mrproper distclean \ |
486 | cscope gtags TAGS tags help %docs check% coccicheck \ | 486 | cscope gtags TAGS tags help %docs check% coccicheck \ |
487 | $(version_h) headers_% archheaders archscripts \ | 487 | $(version_h) headers_% archheaders archscripts \ |
488 | kernelversion %src-pkg | 488 | kernelversion %src-pkg |
489 | 489 | ||
490 | config-targets := 0 | 490 | config-targets := 0 |
491 | mixed-targets := 0 | 491 | mixed-targets := 0 |
492 | dot-config := 1 | 492 | dot-config := 1 |
493 | 493 | ||
494 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) | 494 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) |
495 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) | 495 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) |
496 | dot-config := 0 | 496 | dot-config := 0 |
497 | endif | 497 | endif |
498 | endif | 498 | endif |
499 | 499 | ||
500 | ifeq ($(KBUILD_EXTMOD),) | 500 | ifeq ($(KBUILD_EXTMOD),) |
501 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) | 501 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) |
502 | config-targets := 1 | 502 | config-targets := 1 |
503 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) | 503 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) |
504 | mixed-targets := 1 | 504 | mixed-targets := 1 |
505 | endif | 505 | endif |
506 | endif | 506 | endif |
507 | endif | 507 | endif |
508 | 508 | ||
509 | ifeq ($(mixed-targets),1) | 509 | ifeq ($(mixed-targets),1) |
510 | # =========================================================================== | 510 | # =========================================================================== |
511 | # We're called with mixed targets (*config and build targets). | 511 | # We're called with mixed targets (*config and build targets). |
512 | # Handle them one by one. | 512 | # Handle them one by one. |
513 | 513 | ||
514 | PHONY += $(MAKECMDGOALS) __build_one_by_one | 514 | PHONY += $(MAKECMDGOALS) __build_one_by_one |
515 | 515 | ||
516 | $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one | 516 | $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one |
517 | @: | 517 | @: |
518 | 518 | ||
519 | __build_one_by_one: | 519 | __build_one_by_one: |
520 | $(Q)set -e; \ | 520 | $(Q)set -e; \ |
521 | for i in $(MAKECMDGOALS); do \ | 521 | for i in $(MAKECMDGOALS); do \ |
522 | $(MAKE) -f $(srctree)/Makefile $$i; \ | 522 | $(MAKE) -f $(srctree)/Makefile $$i; \ |
523 | done | 523 | done |
524 | 524 | ||
525 | else | 525 | else |
526 | ifeq ($(config-targets),1) | 526 | ifeq ($(config-targets),1) |
527 | # =========================================================================== | 527 | # =========================================================================== |
528 | # *config targets only - make sure prerequisites are updated, and descend | 528 | # *config targets only - make sure prerequisites are updated, and descend |
529 | # in scripts/kconfig to make the *config target | 529 | # in scripts/kconfig to make the *config target |
530 | 530 | ||
531 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. | 531 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. |
532 | # KBUILD_DEFCONFIG may point out an alternative default configuration | 532 | # KBUILD_DEFCONFIG may point out an alternative default configuration |
533 | # used for 'make defconfig' | 533 | # used for 'make defconfig' |
534 | include $(srctree)/arch/$(SRCARCH)/Makefile | 534 | include $(srctree)/arch/$(SRCARCH)/Makefile |
535 | export KBUILD_DEFCONFIG KBUILD_KCONFIG | 535 | export KBUILD_DEFCONFIG KBUILD_KCONFIG |
536 | 536 | ||
537 | config: scripts_basic outputmakefile FORCE | 537 | config: scripts_basic outputmakefile FORCE |
538 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 538 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
539 | 539 | ||
540 | %config: scripts_basic outputmakefile FORCE | 540 | %config: scripts_basic outputmakefile FORCE |
541 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 541 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
542 | 542 | ||
543 | else | 543 | else |
544 | # =========================================================================== | 544 | # =========================================================================== |
545 | # Build targets only - this includes vmlinux, arch specific targets, clean | 545 | # Build targets only - this includes vmlinux, arch specific targets, clean |
546 | # targets and others. In general all targets except *config targets. | 546 | # targets and others. In general all targets except *config targets. |
547 | 547 | ||
548 | ifeq ($(KBUILD_EXTMOD),) | 548 | ifeq ($(KBUILD_EXTMOD),) |
549 | # Additional helpers built in scripts/ | 549 | # Additional helpers built in scripts/ |
550 | # Carefully list dependencies so we do not try to build scripts twice | 550 | # Carefully list dependencies so we do not try to build scripts twice |
551 | # in parallel | 551 | # in parallel |
552 | PHONY += scripts | 552 | PHONY += scripts |
553 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \ | 553 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \ |
554 | asm-generic | 554 | asm-generic |
555 | $(Q)$(MAKE) $(build)=$(@) | 555 | $(Q)$(MAKE) $(build)=$(@) |
556 | 556 | ||
557 | # Objects we will link into vmlinux / subdirs we need to visit | 557 | # Objects we will link into vmlinux / subdirs we need to visit |
558 | init-y := init/ | 558 | init-y := init/ |
559 | drivers-y := drivers/ sound/ firmware/ | 559 | drivers-y := drivers/ sound/ firmware/ |
560 | net-y := net/ | 560 | net-y := net/ |
561 | libs-y := lib/ | 561 | libs-y := lib/ |
562 | core-y := usr/ | 562 | core-y := usr/ |
563 | endif # KBUILD_EXTMOD | 563 | endif # KBUILD_EXTMOD |
564 | 564 | ||
565 | ifeq ($(dot-config),1) | 565 | ifeq ($(dot-config),1) |
566 | # Read in config | 566 | # Read in config |
567 | -include include/config/auto.conf | 567 | -include include/config/auto.conf |
568 | 568 | ||
569 | ifeq ($(KBUILD_EXTMOD),) | 569 | ifeq ($(KBUILD_EXTMOD),) |
570 | # Read in dependencies to all Kconfig* files, make sure to run | 570 | # Read in dependencies to all Kconfig* files, make sure to run |
571 | # oldconfig if changes are detected. | 571 | # oldconfig if changes are detected. |
572 | -include include/config/auto.conf.cmd | 572 | -include include/config/auto.conf.cmd |
573 | 573 | ||
574 | # To avoid any implicit rule to kick in, define an empty command | 574 | # To avoid any implicit rule to kick in, define an empty command |
575 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; | 575 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; |
576 | 576 | ||
577 | # If .config is newer than include/config/auto.conf, someone tinkered | 577 | # If .config is newer than include/config/auto.conf, someone tinkered |
578 | # with it and forgot to run make oldconfig. | 578 | # with it and forgot to run make oldconfig. |
579 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so | 579 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so |
580 | # we execute the config step to be sure to catch updated Kconfig files | 580 | # we execute the config step to be sure to catch updated Kconfig files |
581 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd | 581 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
582 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig | 582 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig |
583 | else | 583 | else |
584 | # external modules needs include/generated/autoconf.h and include/config/auto.conf | 584 | # external modules needs include/generated/autoconf.h and include/config/auto.conf |
585 | # but do not care if they are up-to-date. Use auto.conf to trigger the test | 585 | # but do not care if they are up-to-date. Use auto.conf to trigger the test |
586 | PHONY += include/config/auto.conf | 586 | PHONY += include/config/auto.conf |
587 | 587 | ||
588 | include/config/auto.conf: | 588 | include/config/auto.conf: |
589 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ | 589 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ |
590 | echo >&2; \ | 590 | echo >&2; \ |
591 | echo >&2 " ERROR: Kernel configuration is invalid."; \ | 591 | echo >&2 " ERROR: Kernel configuration is invalid."; \ |
592 | echo >&2 " include/generated/autoconf.h or $@ are missing.";\ | 592 | echo >&2 " include/generated/autoconf.h or $@ are missing.";\ |
593 | echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ | 593 | echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ |
594 | echo >&2 ; \ | 594 | echo >&2 ; \ |
595 | /bin/false) | 595 | /bin/false) |
596 | 596 | ||
597 | endif # KBUILD_EXTMOD | 597 | endif # KBUILD_EXTMOD |
598 | 598 | ||
599 | else | 599 | else |
600 | # Dummy target needed, because used as prerequisite | 600 | # Dummy target needed, because used as prerequisite |
601 | include/config/auto.conf: ; | 601 | include/config/auto.conf: ; |
602 | endif # $(dot-config) | 602 | endif # $(dot-config) |
603 | 603 | ||
604 | # The all: target is the default when no target is given on the | 604 | # The all: target is the default when no target is given on the |
605 | # command line. | 605 | # command line. |
606 | # This allow a user to issue only 'make' to build a kernel including modules | 606 | # This allow a user to issue only 'make' to build a kernel including modules |
607 | # Defaults to vmlinux, but the arch makefile usually adds further targets | 607 | # Defaults to vmlinux, but the arch makefile usually adds further targets |
608 | all: vmlinux | 608 | all: vmlinux |
609 | 609 | ||
610 | include $(srctree)/arch/$(SRCARCH)/Makefile | 610 | include $(srctree)/arch/$(SRCARCH)/Makefile |
611 | 611 | ||
612 | KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,) | 612 | KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,) |
613 | 613 | ||
614 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE | 614 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
615 | KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) | 615 | KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) |
616 | else | 616 | else |
617 | KBUILD_CFLAGS += -O2 | 617 | KBUILD_CFLAGS += -O2 |
618 | endif | 618 | endif |
619 | 619 | ||
620 | # Tell gcc to never replace conditional load with a non-conditional one | 620 | # Tell gcc to never replace conditional load with a non-conditional one |
621 | KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0) | 621 | KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0) |
622 | 622 | ||
623 | ifdef CONFIG_READABLE_ASM | 623 | ifdef CONFIG_READABLE_ASM |
624 | # Disable optimizations that make assembler listings hard to read. | 624 | # Disable optimizations that make assembler listings hard to read. |
625 | # reorder blocks reorders the control in the function | 625 | # reorder blocks reorders the control in the function |
626 | # ipa clone creates specialized cloned functions | 626 | # ipa clone creates specialized cloned functions |
627 | # partial inlining inlines only parts of functions | 627 | # partial inlining inlines only parts of functions |
628 | KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ | 628 | KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ |
629 | $(call cc-option,-fno-ipa-cp-clone,) \ | 629 | $(call cc-option,-fno-ipa-cp-clone,) \ |
630 | $(call cc-option,-fno-partial-inlining) | 630 | $(call cc-option,-fno-partial-inlining) |
631 | endif | 631 | endif |
632 | 632 | ||
633 | ifneq ($(CONFIG_FRAME_WARN),0) | 633 | ifneq ($(CONFIG_FRAME_WARN),0) |
634 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) | 634 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) |
635 | endif | 635 | endif |
636 | 636 | ||
637 | # Handle stack protector mode. | 637 | # Handle stack protector mode. |
638 | # | 638 | # |
639 | # Since kbuild can potentially perform two passes (first with the old | 639 | # Since kbuild can potentially perform two passes (first with the old |
640 | # .config values and then with updated .config values), we cannot error out | 640 | # .config values and then with updated .config values), we cannot error out |
641 | # if a desired compiler option is unsupported. If we were to error, kbuild | 641 | # if a desired compiler option is unsupported. If we were to error, kbuild |
642 | # could never get to the second pass and actually notice that we changed | 642 | # could never get to the second pass and actually notice that we changed |
643 | # the option to something that was supported. | 643 | # the option to something that was supported. |
644 | # | 644 | # |
645 | # Additionally, we don't want to fallback and/or silently change which compiler | 645 | # Additionally, we don't want to fallback and/or silently change which compiler |
646 | # flags will be used, since that leads to producing kernels with different | 646 | # flags will be used, since that leads to producing kernels with different |
647 | # security feature characteristics depending on the compiler used. ("But I | 647 | # security feature characteristics depending on the compiler used. ("But I |
648 | # selected CC_STACKPROTECTOR_STRONG! Why did it build with _REGULAR?!") | 648 | # selected CC_STACKPROTECTOR_STRONG! Why did it build with _REGULAR?!") |
649 | # | 649 | # |
650 | # The middle ground is to warn here so that the failed option is obvious, but | 650 | # The middle ground is to warn here so that the failed option is obvious, but |
651 | # to let the build fail with bad compiler flags so that we can't produce a | 651 | # to let the build fail with bad compiler flags so that we can't produce a |
652 | # kernel when there is a CONFIG and compiler mismatch. | 652 | # kernel when there is a CONFIG and compiler mismatch. |
653 | # | 653 | # |
654 | ifdef CONFIG_CC_STACKPROTECTOR_REGULAR | 654 | ifdef CONFIG_CC_STACKPROTECTOR_REGULAR |
655 | stackp-flag := -fstack-protector | 655 | stackp-flag := -fstack-protector |
656 | ifeq ($(call cc-option, $(stackp-flag)),) | 656 | ifeq ($(call cc-option, $(stackp-flag)),) |
657 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \ | 657 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \ |
658 | -fstack-protector not supported by compiler) | 658 | -fstack-protector not supported by compiler) |
659 | endif | 659 | endif |
660 | else | 660 | else |
661 | ifdef CONFIG_CC_STACKPROTECTOR_STRONG | 661 | ifdef CONFIG_CC_STACKPROTECTOR_STRONG |
662 | stackp-flag := -fstack-protector-strong | 662 | stackp-flag := -fstack-protector-strong |
663 | ifeq ($(call cc-option, $(stackp-flag)),) | 663 | ifeq ($(call cc-option, $(stackp-flag)),) |
664 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \ | 664 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \ |
665 | -fstack-protector-strong not supported by compiler) | 665 | -fstack-protector-strong not supported by compiler) |
666 | endif | 666 | endif |
667 | else | 667 | else |
668 | # Force off for distro compilers that enable stack protector by default. | 668 | # Force off for distro compilers that enable stack protector by default. |
669 | stackp-flag := $(call cc-option, -fno-stack-protector) | 669 | stackp-flag := $(call cc-option, -fno-stack-protector) |
670 | endif | 670 | endif |
671 | endif | 671 | endif |
672 | KBUILD_CFLAGS += $(stackp-flag) | 672 | KBUILD_CFLAGS += $(stackp-flag) |
673 | 673 | ||
674 | ifeq ($(COMPILER),clang) | 674 | ifeq ($(COMPILER),clang) |
675 | KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) | 675 | KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) |
676 | KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) | 676 | KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) |
677 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) | 677 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) |
678 | KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) | 678 | KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) |
679 | KBUILD_CFLAGS += $(call cc-disable-warning, gnu) | 679 | KBUILD_CFLAGS += $(call cc-disable-warning, gnu) |
680 | # Quiet clang warning: comparison of unsigned expression < 0 is always false | 680 | # Quiet clang warning: comparison of unsigned expression < 0 is always false |
681 | KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) | 681 | KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) |
682 | # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the | 682 | # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the |
683 | # source of a reference will be _MergedGlobals and not on of the whitelisted names. | 683 | # source of a reference will be _MergedGlobals and not on of the whitelisted names. |
684 | # See modpost pattern 2 | 684 | # See modpost pattern 2 |
685 | KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) | 685 | KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) |
686 | KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) | 686 | KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) |
687 | else | 687 | else |
688 | 688 | ||
689 | # This warning generated too much noise in a regular build. | 689 | # This warning generated too much noise in a regular build. |
690 | # Use make W=1 to enable this warning (see scripts/Makefile.build) | 690 | # Use make W=1 to enable this warning (see scripts/Makefile.build) |
691 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) | 691 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) |
692 | endif | 692 | endif |
693 | 693 | ||
694 | ifdef CONFIG_FRAME_POINTER | 694 | ifdef CONFIG_FRAME_POINTER |
695 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls | 695 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
696 | else | 696 | else |
697 | # Some targets (ARM with Thumb2, for example), can't be built with frame | 697 | # Some targets (ARM with Thumb2, for example), can't be built with frame |
698 | # pointers. For those, we don't have FUNCTION_TRACER automatically | 698 | # pointers. For those, we don't have FUNCTION_TRACER automatically |
699 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is | 699 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is |
700 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use | 700 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use |
701 | # -fomit-frame-pointer with FUNCTION_TRACER. | 701 | # -fomit-frame-pointer with FUNCTION_TRACER. |
702 | ifndef CONFIG_FUNCTION_TRACER | 702 | ifndef CONFIG_FUNCTION_TRACER |
703 | KBUILD_CFLAGS += -fomit-frame-pointer | 703 | KBUILD_CFLAGS += -fomit-frame-pointer |
704 | endif | 704 | endif |
705 | endif | 705 | endif |
706 | 706 | ||
707 | KBUILD_CFLAGS += $(call cc-option, -fno-var-tracking-assignments) | 707 | KBUILD_CFLAGS += $(call cc-option, -fno-var-tracking-assignments) |
708 | 708 | ||
709 | ifdef CONFIG_DEBUG_INFO | 709 | ifdef CONFIG_DEBUG_INFO |
710 | ifdef CONFIG_DEBUG_INFO_SPLIT | 710 | ifdef CONFIG_DEBUG_INFO_SPLIT |
711 | KBUILD_CFLAGS += $(call cc-option, -gsplit-dwarf, -g) | 711 | KBUILD_CFLAGS += $(call cc-option, -gsplit-dwarf, -g) |
712 | else | 712 | else |
713 | KBUILD_CFLAGS += -g | 713 | KBUILD_CFLAGS += -g |
714 | endif | 714 | endif |
715 | KBUILD_AFLAGS += -Wa,-gdwarf-2 | 715 | KBUILD_AFLAGS += -Wa,-gdwarf-2 |
716 | endif | 716 | endif |
717 | ifdef CONFIG_DEBUG_INFO_DWARF4 | 717 | ifdef CONFIG_DEBUG_INFO_DWARF4 |
718 | KBUILD_CFLAGS += $(call cc-option, -gdwarf-4,) | 718 | KBUILD_CFLAGS += $(call cc-option, -gdwarf-4,) |
719 | endif | 719 | endif |
720 | 720 | ||
721 | ifdef CONFIG_DEBUG_INFO_REDUCED | 721 | ifdef CONFIG_DEBUG_INFO_REDUCED |
722 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ | 722 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ |
723 | $(call cc-option,-fno-var-tracking) | 723 | $(call cc-option,-fno-var-tracking) |
724 | endif | 724 | endif |
725 | 725 | ||
726 | ifdef CONFIG_FUNCTION_TRACER | 726 | ifdef CONFIG_FUNCTION_TRACER |
727 | ifdef CONFIG_HAVE_FENTRY | 727 | ifdef CONFIG_HAVE_FENTRY |
728 | CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) | 728 | CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) |
729 | endif | 729 | endif |
730 | KBUILD_CFLAGS += -pg $(CC_USING_FENTRY) | 730 | KBUILD_CFLAGS += -pg $(CC_USING_FENTRY) |
731 | KBUILD_AFLAGS += $(CC_USING_FENTRY) | 731 | KBUILD_AFLAGS += $(CC_USING_FENTRY) |
732 | ifdef CONFIG_DYNAMIC_FTRACE | 732 | ifdef CONFIG_DYNAMIC_FTRACE |
733 | ifdef CONFIG_HAVE_C_RECORDMCOUNT | 733 | ifdef CONFIG_HAVE_C_RECORDMCOUNT |
734 | BUILD_C_RECORDMCOUNT := y | 734 | BUILD_C_RECORDMCOUNT := y |
735 | export BUILD_C_RECORDMCOUNT | 735 | export BUILD_C_RECORDMCOUNT |
736 | endif | 736 | endif |
737 | endif | 737 | endif |
738 | endif | 738 | endif |
739 | 739 | ||
740 | # We trigger additional mismatches with less inlining | 740 | # We trigger additional mismatches with less inlining |
741 | ifdef CONFIG_DEBUG_SECTION_MISMATCH | 741 | ifdef CONFIG_DEBUG_SECTION_MISMATCH |
742 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) | 742 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) |
743 | endif | 743 | endif |
744 | 744 | ||
745 | # arch Makefile may override CC so keep this after arch Makefile is included | 745 | # arch Makefile may override CC so keep this after arch Makefile is included |
746 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) | 746 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
747 | CHECKFLAGS += $(NOSTDINC_FLAGS) | 747 | CHECKFLAGS += $(NOSTDINC_FLAGS) |
748 | 748 | ||
749 | # warn about C99 declaration after statement | 749 | # warn about C99 declaration after statement |
750 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) | 750 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
751 | 751 | ||
752 | # disable pointer signed / unsigned warnings in gcc 4.0 | 752 | # disable pointer signed / unsigned warnings in gcc 4.0 |
753 | KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) | 753 | KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) |
754 | 754 | ||
755 | # disable invalid "can't wrap" optimizations for signed / pointers | 755 | # disable invalid "can't wrap" optimizations for signed / pointers |
756 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) | 756 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) |
757 | 757 | ||
758 | # conserve stack if available | 758 | # conserve stack if available |
759 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) | 759 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) |
760 | 760 | ||
761 | # disallow errors like 'EXPORT_GPL(foo);' with missing header | 761 | # disallow errors like 'EXPORT_GPL(foo);' with missing header |
762 | KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) | 762 | KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) |
763 | 763 | ||
764 | # require functions to have arguments in prototypes, not empty 'int foo()' | 764 | # require functions to have arguments in prototypes, not empty 'int foo()' |
765 | KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) | 765 | KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) |
766 | 766 | ||
767 | # Prohibit date/time macros, which would make the build non-deterministic | 767 | # Prohibit date/time macros, which would make the build non-deterministic |
768 | KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) | 768 | KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) |
769 | 769 | ||
770 | # use the deterministic mode of AR if available | 770 | # use the deterministic mode of AR if available |
771 | KBUILD_ARFLAGS := $(call ar-option,D) | 771 | KBUILD_ARFLAGS := $(call ar-option,D) |
772 | 772 | ||
773 | # check for 'asm goto' | 773 | # check for 'asm goto' |
774 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) | 774 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) |
775 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO | 775 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO |
776 | endif | 776 | endif |
777 | 777 | ||
778 | include $(srctree)/scripts/Makefile.extrawarn | 778 | include $(srctree)/scripts/Makefile.extrawarn |
779 | 779 | ||
780 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments | 780 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
781 | KBUILD_CPPFLAGS += $(KCPPFLAGS) | 781 | KBUILD_CPPFLAGS += $(KCPPFLAGS) |
782 | KBUILD_AFLAGS += $(KAFLAGS) | 782 | KBUILD_AFLAGS += $(KAFLAGS) |
783 | KBUILD_CFLAGS += $(KCFLAGS) | 783 | KBUILD_CFLAGS += $(KCFLAGS) |
784 | 784 | ||
785 | # Use --build-id when available. | 785 | # Use --build-id when available. |
786 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ | 786 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ |
787 | $(call cc-ldoption, -Wl$(comma)--build-id,)) | 787 | $(call cc-ldoption, -Wl$(comma)--build-id,)) |
788 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) | 788 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) |
789 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) | 789 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) |
790 | 790 | ||
791 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) | 791 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) |
792 | LDFLAGS_vmlinux += $(call ld-option, -X,) | 792 | LDFLAGS_vmlinux += $(call ld-option, -X,) |
793 | endif | 793 | endif |
794 | 794 | ||
795 | # Default kernel image to build when no specific target is given. | 795 | # Default kernel image to build when no specific target is given. |
796 | # KBUILD_IMAGE may be overruled on the command line or | 796 | # KBUILD_IMAGE may be overruled on the command line or |
797 | # set in the environment | 797 | # set in the environment |
798 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over | 798 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over |
799 | # this default value | 799 | # this default value |
800 | export KBUILD_IMAGE ?= vmlinux | 800 | export KBUILD_IMAGE ?= vmlinux |
801 | 801 | ||
802 | # | 802 | # |
803 | # INSTALL_PATH specifies where to place the updated kernel and system map | 803 | # INSTALL_PATH specifies where to place the updated kernel and system map |
804 | # images. Default is /boot, but you can set it to other values | 804 | # images. Default is /boot, but you can set it to other values |
805 | export INSTALL_PATH ?= /boot | 805 | export INSTALL_PATH ?= /boot |
806 | 806 | ||
807 | # | 807 | # |
808 | # INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots. | 808 | # INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots. |
809 | # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as | 809 | # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as |
810 | # an argument if needed. Otherwise it defaults to the kernel install path | 810 | # an argument if needed. Otherwise it defaults to the kernel install path |
811 | # | 811 | # |
812 | export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) | 812 | export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) |
813 | 813 | ||
814 | # | 814 | # |
815 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory | 815 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory |
816 | # relocations required by build roots. This is not defined in the | 816 | # relocations required by build roots. This is not defined in the |
817 | # makefile but the argument can be passed to make if needed. | 817 | # makefile but the argument can be passed to make if needed. |
818 | # | 818 | # |
819 | 819 | ||
820 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) | 820 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
821 | export MODLIB | 821 | export MODLIB |
822 | 822 | ||
823 | # | 823 | # |
824 | # INSTALL_MOD_STRIP, if defined, will cause modules to be | 824 | # INSTALL_MOD_STRIP, if defined, will cause modules to be |
825 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then | 825 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then |
826 | # the default option --strip-debug will be used. Otherwise, | 826 | # the default option --strip-debug will be used. Otherwise, |
827 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. | 827 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. |
828 | 828 | ||
829 | ifdef INSTALL_MOD_STRIP | 829 | ifdef INSTALL_MOD_STRIP |
830 | ifeq ($(INSTALL_MOD_STRIP),1) | 830 | ifeq ($(INSTALL_MOD_STRIP),1) |
831 | mod_strip_cmd = $(STRIP) --strip-debug | 831 | mod_strip_cmd = $(STRIP) --strip-debug |
832 | else | 832 | else |
833 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) | 833 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
834 | endif # INSTALL_MOD_STRIP=1 | 834 | endif # INSTALL_MOD_STRIP=1 |
835 | else | 835 | else |
836 | mod_strip_cmd = true | 836 | mod_strip_cmd = true |
837 | endif # INSTALL_MOD_STRIP | 837 | endif # INSTALL_MOD_STRIP |
838 | export mod_strip_cmd | 838 | export mod_strip_cmd |
839 | 839 | ||
840 | # CONFIG_MODULE_COMPRESS, if defined, will cause module to be compressed | 840 | # CONFIG_MODULE_COMPRESS, if defined, will cause module to be compressed |
841 | # after they are installed in agreement with CONFIG_MODULE_COMPRESS_GZIP | 841 | # after they are installed in agreement with CONFIG_MODULE_COMPRESS_GZIP |
842 | # or CONFIG_MODULE_COMPRESS_XZ. | 842 | # or CONFIG_MODULE_COMPRESS_XZ. |
843 | 843 | ||
844 | mod_compress_cmd = true | 844 | mod_compress_cmd = true |
845 | ifdef CONFIG_MODULE_COMPRESS | 845 | ifdef CONFIG_MODULE_COMPRESS |
846 | ifdef CONFIG_MODULE_COMPRESS_GZIP | 846 | ifdef CONFIG_MODULE_COMPRESS_GZIP |
847 | mod_compress_cmd = gzip -n | 847 | mod_compress_cmd = gzip -n |
848 | endif # CONFIG_MODULE_COMPRESS_GZIP | 848 | endif # CONFIG_MODULE_COMPRESS_GZIP |
849 | ifdef CONFIG_MODULE_COMPRESS_XZ | 849 | ifdef CONFIG_MODULE_COMPRESS_XZ |
850 | mod_compress_cmd = xz | 850 | mod_compress_cmd = xz |
851 | endif # CONFIG_MODULE_COMPRESS_XZ | 851 | endif # CONFIG_MODULE_COMPRESS_XZ |
852 | endif # CONFIG_MODULE_COMPRESS | 852 | endif # CONFIG_MODULE_COMPRESS |
853 | export mod_compress_cmd | 853 | export mod_compress_cmd |
854 | 854 | ||
855 | # Select initial ramdisk compression format, default is gzip(1). | 855 | # Select initial ramdisk compression format, default is gzip(1). |
856 | # This shall be used by the dracut(8) tool while creating an initramfs image. | 856 | # This shall be used by the dracut(8) tool while creating an initramfs image. |
857 | # | 857 | # |
858 | INITRD_COMPRESS-y := gzip | 858 | INITRD_COMPRESS-y := gzip |
859 | INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2 | 859 | INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2 |
860 | INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma | 860 | INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma |
861 | INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz | 861 | INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz |
862 | INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo | 862 | INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo |
863 | INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4 | 863 | INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4 |
864 | # do not export INITRD_COMPRESS, since we didn't actually | 864 | # do not export INITRD_COMPRESS, since we didn't actually |
865 | # choose a sane default compression above. | 865 | # choose a sane default compression above. |
866 | # export INITRD_COMPRESS := $(INITRD_COMPRESS-y) | 866 | # export INITRD_COMPRESS := $(INITRD_COMPRESS-y) |
867 | 867 | ||
868 | ifdef CONFIG_MODULE_SIG_ALL | 868 | ifdef CONFIG_MODULE_SIG_ALL |
869 | MODSECKEY = ./signing_key.priv | 869 | MODSECKEY = ./signing_key.priv |
870 | MODPUBKEY = ./signing_key.x509 | 870 | MODPUBKEY = ./signing_key.x509 |
871 | export MODPUBKEY | 871 | export MODPUBKEY |
872 | mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) | 872 | mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) |
873 | else | 873 | else |
874 | mod_sign_cmd = true | 874 | mod_sign_cmd = true |
875 | endif | 875 | endif |
876 | export mod_sign_cmd | 876 | export mod_sign_cmd |
877 | 877 | ||
878 | 878 | ||
879 | ifeq ($(KBUILD_EXTMOD),) | 879 | ifeq ($(KBUILD_EXTMOD),) |
880 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ | 880 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
881 | 881 | ||
882 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ | 882 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ |
883 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ | 883 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ |
884 | $(net-y) $(net-m) $(libs-y) $(libs-m))) | 884 | $(net-y) $(net-m) $(libs-y) $(libs-m))) |
885 | 885 | ||
886 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ | 886 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ |
887 | $(init-) $(core-) $(drivers-) $(net-) $(libs-)))) | 887 | $(init-) $(core-) $(drivers-) $(net-) $(libs-)))) |
888 | 888 | ||
889 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) | 889 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) |
890 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) | 890 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) |
891 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) | 891 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) |
892 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) | 892 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) |
893 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) | 893 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) |
894 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) | 894 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) |
895 | libs-y := $(libs-y1) $(libs-y2) | 895 | libs-y := $(libs-y1) $(libs-y2) |
896 | 896 | ||
897 | # Externally visible symbols (used by link-vmlinux.sh) | 897 | # Externally visible symbols (used by link-vmlinux.sh) |
898 | export KBUILD_VMLINUX_INIT := $(head-y) $(init-y) | 898 | export KBUILD_VMLINUX_INIT := $(head-y) $(init-y) |
899 | export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) | 899 | export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) |
900 | export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds | 900 | export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds |
901 | export LDFLAGS_vmlinux | 901 | export LDFLAGS_vmlinux |
902 | # used by scripts/pacmage/Makefile | 902 | # used by scripts/pacmage/Makefile |
903 | export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt) | 903 | export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt) |
904 | 904 | ||
905 | vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) | 905 | vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) |
906 | 906 | ||
907 | # Final link of vmlinux | 907 | # Final link of vmlinux |
908 | cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) | 908 | cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) |
909 | quiet_cmd_link-vmlinux = LINK $@ | 909 | quiet_cmd_link-vmlinux = LINK $@ |
910 | 910 | ||
911 | # Include targets which we want to | 911 | # Include targets which we want to |
912 | # execute if the rest of the kernel build went well. | 912 | # execute if the rest of the kernel build went well. |
913 | vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE | 913 | vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE |
914 | ifdef CONFIG_HEADERS_CHECK | 914 | ifdef CONFIG_HEADERS_CHECK |
915 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check | 915 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
916 | endif | 916 | endif |
917 | ifdef CONFIG_SAMPLES | 917 | ifdef CONFIG_SAMPLES |
918 | $(Q)$(MAKE) $(build)=samples | 918 | $(Q)$(MAKE) $(build)=samples |
919 | endif | 919 | endif |
920 | ifdef CONFIG_BUILD_DOCSRC | 920 | ifdef CONFIG_BUILD_DOCSRC |
921 | $(Q)$(MAKE) $(build)=Documentation | 921 | $(Q)$(MAKE) $(build)=Documentation |
922 | endif | 922 | endif |
923 | +$(call if_changed,link-vmlinux) | 923 | +$(call if_changed,link-vmlinux) |
924 | 924 | ||
925 | # The actual objects are generated when descending, | 925 | # The actual objects are generated when descending, |
926 | # make sure no implicit rule kicks in | 926 | # make sure no implicit rule kicks in |
927 | $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; | 927 | $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; |
928 | 928 | ||
929 | # Handle descending into subdirectories listed in $(vmlinux-dirs) | 929 | # Handle descending into subdirectories listed in $(vmlinux-dirs) |
930 | # Preset locale variables to speed up the build process. Limit locale | 930 | # Preset locale variables to speed up the build process. Limit locale |
931 | # tweaks to this spot to avoid wrong language settings when running | 931 | # tweaks to this spot to avoid wrong language settings when running |
932 | # make menuconfig etc. | 932 | # make menuconfig etc. |
933 | # Error messages still appears in the original language | 933 | # Error messages still appears in the original language |
934 | 934 | ||
935 | PHONY += $(vmlinux-dirs) | 935 | PHONY += $(vmlinux-dirs) |
936 | $(vmlinux-dirs): prepare scripts | 936 | $(vmlinux-dirs): prepare scripts |
937 | $(Q)$(MAKE) $(build)=$@ | 937 | $(Q)$(MAKE) $(build)=$@ |
938 | 938 | ||
939 | define filechk_kernel.release | 939 | define filechk_kernel.release |
940 | echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" | 940 | echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
941 | endef | 941 | endef |
942 | 942 | ||
943 | # Store (new) KERNELRELEASE string in include/config/kernel.release | 943 | # Store (new) KERNELRELEASE string in include/config/kernel.release |
944 | include/config/kernel.release: include/config/auto.conf FORCE | 944 | include/config/kernel.release: include/config/auto.conf FORCE |
945 | $(call filechk,kernel.release) | 945 | $(call filechk,kernel.release) |
946 | 946 | ||
947 | 947 | ||
948 | # Things we need to do before we recursively start building the kernel | 948 | # Things we need to do before we recursively start building the kernel |
949 | # or the modules are listed in "prepare". | 949 | # or the modules are listed in "prepare". |
950 | # A multi level approach is used. prepareN is processed before prepareN-1. | 950 | # A multi level approach is used. prepareN is processed before prepareN-1. |
951 | # archprepare is used in arch Makefiles and when processed asm symlink, | 951 | # archprepare is used in arch Makefiles and when processed asm symlink, |
952 | # version.h and scripts_basic is processed / created. | 952 | # version.h and scripts_basic is processed / created. |
953 | 953 | ||
954 | # Listed in dependency order | 954 | # Listed in dependency order |
955 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 | 955 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
956 | 956 | ||
957 | # prepare3 is used to check if we are building in a separate output directory, | 957 | # prepare3 is used to check if we are building in a separate output directory, |
958 | # and if so do: | 958 | # and if so do: |
959 | # 1) Check that make has not been executed in the kernel src $(srctree) | 959 | # 1) Check that make has not been executed in the kernel src $(srctree) |
960 | prepare3: include/config/kernel.release | 960 | prepare3: include/config/kernel.release |
961 | ifneq ($(KBUILD_SRC),) | 961 | ifneq ($(KBUILD_SRC),) |
962 | @$(kecho) ' Using $(srctree) as source for kernel' | 962 | @$(kecho) ' Using $(srctree) as source for kernel' |
963 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ | 963 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
964 | echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ | 964 | echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ |
965 | echo >&2 " in the '$(srctree)' directory.";\ | 965 | echo >&2 " in the '$(srctree)' directory.";\ |
966 | /bin/false; \ | 966 | /bin/false; \ |
967 | fi; | 967 | fi; |
968 | endif | 968 | endif |
969 | 969 | ||
970 | # prepare2 creates a makefile if using a separate output directory | 970 | # prepare2 creates a makefile if using a separate output directory |
971 | prepare2: prepare3 outputmakefile asm-generic | 971 | prepare2: prepare3 outputmakefile asm-generic |
972 | 972 | ||
973 | prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ | 973 | prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ |
974 | include/config/auto.conf | 974 | include/config/auto.conf |
975 | $(cmd_crmodverdir) | 975 | $(cmd_crmodverdir) |
976 | 976 | ||
977 | archprepare: archheaders archscripts prepare1 scripts_basic | 977 | archprepare: archheaders archscripts prepare1 scripts_basic |
978 | 978 | ||
979 | prepare0: archprepare FORCE | 979 | prepare0: archprepare FORCE |
980 | $(Q)$(MAKE) $(build)=. | 980 | $(Q)$(MAKE) $(build)=. |
981 | 981 | ||
982 | # All the preparing.. | 982 | # All the preparing.. |
983 | prepare: prepare0 | 983 | prepare: prepare0 |
984 | 984 | ||
985 | # Generate some files | 985 | # Generate some files |
986 | # --------------------------------------------------------------------------- | 986 | # --------------------------------------------------------------------------- |
987 | 987 | ||
988 | # KERNELRELEASE can change from a few different places, meaning version.h | 988 | # KERNELRELEASE can change from a few different places, meaning version.h |
989 | # needs to be updated, so this check is forced on all builds | 989 | # needs to be updated, so this check is forced on all builds |
990 | 990 | ||
991 | uts_len := 64 | 991 | uts_len := 64 |
992 | define filechk_utsrelease.h | 992 | define filechk_utsrelease.h |
993 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ | 993 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ |
994 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ | 994 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ |
995 | exit 1; \ | 995 | exit 1; \ |
996 | fi; \ | 996 | fi; \ |
997 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) | 997 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) |
998 | endef | 998 | endef |
999 | 999 | ||
1000 | define filechk_version.h | 1000 | define filechk_version.h |
1001 | (echo \#define LINUX_VERSION_CODE $(shell \ | 1001 | (echo \#define LINUX_VERSION_CODE $(shell \ |
1002 | expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ | 1002 | expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ |
1003 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) | 1003 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) |
1004 | endef | 1004 | endef |
1005 | 1005 | ||
1006 | $(version_h): $(srctree)/Makefile FORCE | 1006 | $(version_h): $(srctree)/Makefile FORCE |
1007 | $(call filechk,version.h) | 1007 | $(call filechk,version.h) |
1008 | 1008 | ||
1009 | include/generated/utsrelease.h: include/config/kernel.release FORCE | 1009 | include/generated/utsrelease.h: include/config/kernel.release FORCE |
1010 | $(call filechk,utsrelease.h) | 1010 | $(call filechk,utsrelease.h) |
1011 | 1011 | ||
1012 | PHONY += headerdep | 1012 | PHONY += headerdep |
1013 | headerdep: | 1013 | headerdep: |
1014 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ | 1014 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ |
1015 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include | 1015 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include |
1016 | 1016 | ||
1017 | # --------------------------------------------------------------------------- | 1017 | # --------------------------------------------------------------------------- |
1018 | 1018 | ||
1019 | PHONY += depend dep | 1019 | PHONY += depend dep |
1020 | depend dep: | 1020 | depend dep: |
1021 | @echo '*** Warning: make $@ is unnecessary now.' | 1021 | @echo '*** Warning: make $@ is unnecessary now.' |
1022 | 1022 | ||
1023 | # --------------------------------------------------------------------------- | 1023 | # --------------------------------------------------------------------------- |
1024 | # Firmware install | 1024 | # Firmware install |
1025 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware | 1025 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware |
1026 | export INSTALL_FW_PATH | 1026 | export INSTALL_FW_PATH |
1027 | 1027 | ||
1028 | PHONY += firmware_install | 1028 | PHONY += firmware_install |
1029 | firmware_install: FORCE | 1029 | firmware_install: FORCE |
1030 | @mkdir -p $(objtree)/firmware | 1030 | @mkdir -p $(objtree)/firmware |
1031 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install | 1031 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install |
1032 | 1032 | ||
1033 | # --------------------------------------------------------------------------- | 1033 | # --------------------------------------------------------------------------- |
1034 | # Kernel headers | 1034 | # Kernel headers |
1035 | 1035 | ||
1036 | #Default location for installed headers | 1036 | #Default location for installed headers |
1037 | export INSTALL_HDR_PATH = $(objtree)/usr | 1037 | export INSTALL_HDR_PATH = $(objtree)/usr |
1038 | 1038 | ||
1039 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj | 1039 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj |
1040 | 1040 | ||
1041 | # If we do an all arch process set dst to asm-$(hdr-arch) | 1041 | # If we do an all arch process set dst to asm-$(hdr-arch) |
1042 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) | 1042 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) |
1043 | 1043 | ||
1044 | PHONY += archheaders | 1044 | PHONY += archheaders |
1045 | archheaders: | 1045 | archheaders: |
1046 | 1046 | ||
1047 | PHONY += archscripts | 1047 | PHONY += archscripts |
1048 | archscripts: | 1048 | archscripts: |
1049 | 1049 | ||
1050 | PHONY += __headers | 1050 | PHONY += __headers |
1051 | __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE | 1051 | __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE |
1052 | $(Q)$(MAKE) $(build)=scripts build_unifdef | 1052 | $(Q)$(MAKE) $(build)=scripts build_unifdef |
1053 | 1053 | ||
1054 | PHONY += headers_install_all | 1054 | PHONY += headers_install_all |
1055 | headers_install_all: | 1055 | headers_install_all: |
1056 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install | 1056 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install |
1057 | 1057 | ||
1058 | PHONY += headers_install | 1058 | PHONY += headers_install |
1059 | headers_install: __headers | 1059 | headers_install: __headers |
1060 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ | 1060 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ |
1061 | $(error Headers not exportable for the $(SRCARCH) architecture)) | 1061 | $(error Headers not exportable for the $(SRCARCH) architecture)) |
1062 | $(Q)$(MAKE) $(hdr-inst)=include/uapi | 1062 | $(Q)$(MAKE) $(hdr-inst)=include/uapi |
1063 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) | 1063 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) |
1064 | 1064 | ||
1065 | PHONY += headers_check_all | 1065 | PHONY += headers_check_all |
1066 | headers_check_all: headers_install_all | 1066 | headers_check_all: headers_install_all |
1067 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check | 1067 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check |
1068 | 1068 | ||
1069 | PHONY += headers_check | 1069 | PHONY += headers_check |
1070 | headers_check: headers_install | 1070 | headers_check: headers_install |
1071 | $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1 | 1071 | $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1 |
1072 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1 | 1072 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1 |
1073 | 1073 | ||
1074 | # --------------------------------------------------------------------------- | 1074 | # --------------------------------------------------------------------------- |
1075 | # Kernel selftest | 1075 | # Kernel selftest |
1076 | 1076 | ||
1077 | PHONY += kselftest | 1077 | PHONY += kselftest |
1078 | kselftest: | 1078 | kselftest: |
1079 | $(Q)$(MAKE) -C tools/testing/selftests run_tests | 1079 | $(Q)$(MAKE) -C tools/testing/selftests run_tests |
1080 | 1080 | ||
1081 | # --------------------------------------------------------------------------- | 1081 | # --------------------------------------------------------------------------- |
1082 | # Modules | 1082 | # Modules |
1083 | 1083 | ||
1084 | ifdef CONFIG_MODULES | 1084 | ifdef CONFIG_MODULES |
1085 | 1085 | ||
1086 | # By default, build modules as well | 1086 | # By default, build modules as well |
1087 | 1087 | ||
1088 | all: modules | 1088 | all: modules |
1089 | 1089 | ||
1090 | # Build modules | 1090 | # Build modules |
1091 | # | 1091 | # |
1092 | # A module can be listed more than once in obj-m resulting in | 1092 | # A module can be listed more than once in obj-m resulting in |
1093 | # duplicate lines in modules.order files. Those are removed | 1093 | # duplicate lines in modules.order files. Those are removed |
1094 | # using awk while concatenating to the final file. | 1094 | # using awk while concatenating to the final file. |
1095 | 1095 | ||
1096 | PHONY += modules | 1096 | PHONY += modules |
1097 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin | 1097 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin |
1098 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order | 1098 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
1099 | @$(kecho) ' Building modules, stage 2.'; | 1099 | @$(kecho) ' Building modules, stage 2.'; |
1100 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1100 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1101 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild | 1101 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
1102 | 1102 | ||
1103 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) | 1103 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) |
1104 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin | 1104 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin |
1105 | 1105 | ||
1106 | %/modules.builtin: include/config/auto.conf | 1106 | %/modules.builtin: include/config/auto.conf |
1107 | $(Q)$(MAKE) $(modbuiltin)=$* | 1107 | $(Q)$(MAKE) $(modbuiltin)=$* |
1108 | 1108 | ||
1109 | 1109 | ||
1110 | # Target to prepare building external modules | 1110 | # Target to prepare building external modules |
1111 | PHONY += modules_prepare | 1111 | PHONY += modules_prepare |
1112 | modules_prepare: prepare scripts | 1112 | modules_prepare: prepare scripts |
1113 | 1113 | ||
1114 | # Target to install modules | 1114 | # Target to install modules |
1115 | PHONY += modules_install | 1115 | PHONY += modules_install |
1116 | modules_install: _modinst_ _modinst_post | 1116 | modules_install: _modinst_ _modinst_post |
1117 | 1117 | ||
1118 | PHONY += _modinst_ | 1118 | PHONY += _modinst_ |
1119 | _modinst_: | 1119 | _modinst_: |
1120 | @rm -rf $(MODLIB)/kernel | 1120 | @rm -rf $(MODLIB)/kernel |
1121 | @rm -f $(MODLIB)/source | 1121 | @rm -f $(MODLIB)/source |
1122 | @mkdir -p $(MODLIB)/kernel | 1122 | @mkdir -p $(MODLIB)/kernel |
1123 | @ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source | 1123 | @ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source |
1124 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ | 1124 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ |
1125 | rm -f $(MODLIB)/build ; \ | 1125 | rm -f $(MODLIB)/build ; \ |
1126 | ln -s $(CURDIR) $(MODLIB)/build ; \ | 1126 | ln -s $(CURDIR) $(MODLIB)/build ; \ |
1127 | fi | 1127 | fi |
1128 | @cp -f $(objtree)/modules.order $(MODLIB)/ | 1128 | @cp -f $(objtree)/modules.order $(MODLIB)/ |
1129 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ | 1129 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ |
1130 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1130 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1131 | 1131 | ||
1132 | # This depmod is only for convenience to give the initial | 1132 | # This depmod is only for convenience to give the initial |
1133 | # boot a modules.dep even before / is mounted read-write. However the | 1133 | # boot a modules.dep even before / is mounted read-write. However the |
1134 | # boot script depmod is the master version. | 1134 | # boot script depmod is the master version. |
1135 | PHONY += _modinst_post | 1135 | PHONY += _modinst_post |
1136 | _modinst_post: _modinst_ | 1136 | _modinst_post: _modinst_ |
1137 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst | 1137 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
1138 | $(call cmd,depmod) | 1138 | $(call cmd,depmod) |
1139 | 1139 | ||
1140 | ifeq ($(CONFIG_MODULE_SIG), y) | 1140 | ifeq ($(CONFIG_MODULE_SIG), y) |
1141 | PHONY += modules_sign | 1141 | PHONY += modules_sign |
1142 | modules_sign: | 1142 | modules_sign: |
1143 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign | 1143 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign |
1144 | endif | 1144 | endif |
1145 | 1145 | ||
1146 | else # CONFIG_MODULES | 1146 | else # CONFIG_MODULES |
1147 | 1147 | ||
1148 | # Modules not configured | 1148 | # Modules not configured |
1149 | # --------------------------------------------------------------------------- | 1149 | # --------------------------------------------------------------------------- |
1150 | 1150 | ||
1151 | modules modules_install: FORCE | 1151 | modules modules_install: FORCE |
1152 | @echo >&2 | 1152 | @echo >&2 |
1153 | @echo >&2 "The present kernel configuration has modules disabled." | 1153 | @echo >&2 "The present kernel configuration has modules disabled." |
1154 | @echo >&2 "Type 'make config' and enable loadable module support." | 1154 | @echo >&2 "Type 'make config' and enable loadable module support." |
1155 | @echo >&2 "Then build a kernel with module support enabled." | 1155 | @echo >&2 "Then build a kernel with module support enabled." |
1156 | @echo >&2 | 1156 | @echo >&2 |
1157 | @exit 1 | 1157 | @exit 1 |
1158 | 1158 | ||
1159 | endif # CONFIG_MODULES | 1159 | endif # CONFIG_MODULES |
1160 | 1160 | ||
1161 | ### | 1161 | ### |
1162 | # Cleaning is done on three levels. | 1162 | # Cleaning is done on three levels. |
1163 | # make clean Delete most generated files | 1163 | # make clean Delete most generated files |
1164 | # Leave enough to build external modules | 1164 | # Leave enough to build external modules |
1165 | # make mrproper Delete the current configuration, and all generated files | 1165 | # make mrproper Delete the current configuration, and all generated files |
1166 | # make distclean Remove editor backup files, patch leftover files and the like | 1166 | # make distclean Remove editor backup files, patch leftover files and the like |
1167 | 1167 | ||
1168 | # Directories & files removed with 'make clean' | 1168 | # Directories & files removed with 'make clean' |
1169 | CLEAN_DIRS += $(MODVERDIR) | 1169 | CLEAN_DIRS += $(MODVERDIR) |
1170 | 1170 | ||
1171 | # Directories & files removed with 'make mrproper' | 1171 | # Directories & files removed with 'make mrproper' |
1172 | MRPROPER_DIRS += include/config usr/include include/generated \ | 1172 | MRPROPER_DIRS += include/config usr/include include/generated \ |
1173 | arch/*/include/generated .tmp_objdiff | 1173 | arch/*/include/generated .tmp_objdiff |
1174 | MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \ | 1174 | MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \ |
1175 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ | 1175 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ |
1176 | signing_key.priv signing_key.x509 x509.genkey \ | 1176 | signing_key.priv signing_key.x509 x509.genkey \ |
1177 | extra_certificates signing_key.x509.keyid \ | 1177 | extra_certificates signing_key.x509.keyid \ |
1178 | signing_key.x509.signer include/linux/version.h | 1178 | signing_key.x509.signer include/linux/version.h |
1179 | 1179 | ||
1180 | # clean - Delete most, but leave enough to build external modules | 1180 | # clean - Delete most, but leave enough to build external modules |
1181 | # | 1181 | # |
1182 | clean: rm-dirs := $(CLEAN_DIRS) | 1182 | clean: rm-dirs := $(CLEAN_DIRS) |
1183 | clean: rm-files := $(CLEAN_FILES) | 1183 | clean: rm-files := $(CLEAN_FILES) |
1184 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples) | 1184 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples) |
1185 | 1185 | ||
1186 | PHONY += $(clean-dirs) clean archclean vmlinuxclean | 1186 | PHONY += $(clean-dirs) clean archclean vmlinuxclean |
1187 | $(clean-dirs): | 1187 | $(clean-dirs): |
1188 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1188 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
1189 | 1189 | ||
1190 | vmlinuxclean: | 1190 | vmlinuxclean: |
1191 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean | 1191 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean |
1192 | 1192 | ||
1193 | clean: archclean vmlinuxclean | 1193 | clean: archclean vmlinuxclean |
1194 | 1194 | ||
1195 | # mrproper - Delete all generated files, including .config | 1195 | # mrproper - Delete all generated files, including .config |
1196 | # | 1196 | # |
1197 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) | 1197 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) |
1198 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) | 1198 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) |
1199 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) | 1199 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) |
1200 | 1200 | ||
1201 | PHONY += $(mrproper-dirs) mrproper archmrproper | 1201 | PHONY += $(mrproper-dirs) mrproper archmrproper |
1202 | $(mrproper-dirs): | 1202 | $(mrproper-dirs): |
1203 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) | 1203 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) |
1204 | 1204 | ||
1205 | mrproper: clean archmrproper $(mrproper-dirs) | 1205 | mrproper: clean archmrproper $(mrproper-dirs) |
1206 | $(call cmd,rmdirs) | 1206 | $(call cmd,rmdirs) |
1207 | $(call cmd,rmfiles) | 1207 | $(call cmd,rmfiles) |
1208 | 1208 | ||
1209 | # distclean | 1209 | # distclean |
1210 | # | 1210 | # |
1211 | PHONY += distclean | 1211 | PHONY += distclean |
1212 | 1212 | ||
1213 | distclean: mrproper | 1213 | distclean: mrproper |
1214 | @find $(srctree) $(RCS_FIND_IGNORE) \ | 1214 | @find $(srctree) $(RCS_FIND_IGNORE) \ |
1215 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ | 1215 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
1216 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ | 1216 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
1217 | -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \ | 1217 | -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \ |
1218 | -type f -print | xargs rm -f | 1218 | -type f -print | xargs rm -f |
1219 | 1219 | ||
1220 | 1220 | ||
1221 | # Packaging of the kernel to various formats | 1221 | # Packaging of the kernel to various formats |
1222 | # --------------------------------------------------------------------------- | 1222 | # --------------------------------------------------------------------------- |
1223 | # rpm target kept for backward compatibility | 1223 | # rpm target kept for backward compatibility |
1224 | package-dir := scripts/package | 1224 | package-dir := scripts/package |
1225 | 1225 | ||
1226 | %src-pkg: FORCE | 1226 | %src-pkg: FORCE |
1227 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1227 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1228 | %pkg: include/config/kernel.release FORCE | 1228 | %pkg: include/config/kernel.release FORCE |
1229 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1229 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1230 | rpm: include/config/kernel.release FORCE | 1230 | rpm: include/config/kernel.release FORCE |
1231 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1231 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1232 | 1232 | ||
1233 | 1233 | ||
1234 | # Brief documentation of the typical targets used | 1234 | # Brief documentation of the typical targets used |
1235 | # --------------------------------------------------------------------------- | 1235 | # --------------------------------------------------------------------------- |
1236 | 1236 | ||
1237 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) | 1237 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
1238 | boards := $(notdir $(boards)) | 1238 | boards := $(notdir $(boards)) |
1239 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) | 1239 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) |
1240 | board-dirs := $(sort $(notdir $(board-dirs:/=))) | 1240 | board-dirs := $(sort $(notdir $(board-dirs:/=))) |
1241 | 1241 | ||
1242 | help: | 1242 | help: |
1243 | @echo 'Cleaning targets:' | 1243 | @echo 'Cleaning targets:' |
1244 | @echo ' clean - Remove most generated files but keep the config and' | 1244 | @echo ' clean - Remove most generated files but keep the config and' |
1245 | @echo ' enough build support to build external modules' | 1245 | @echo ' enough build support to build external modules' |
1246 | @echo ' mrproper - Remove all generated files + config + various backup files' | 1246 | @echo ' mrproper - Remove all generated files + config + various backup files' |
1247 | @echo ' distclean - mrproper + remove editor backup and patch files' | 1247 | @echo ' distclean - mrproper + remove editor backup and patch files' |
1248 | @echo '' | 1248 | @echo '' |
1249 | @echo 'Configuration targets:' | 1249 | @echo 'Configuration targets:' |
1250 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help | 1250 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help |
1251 | @echo '' | 1251 | @echo '' |
1252 | @echo 'Other generic targets:' | 1252 | @echo 'Other generic targets:' |
1253 | @echo ' all - Build all targets marked with [*]' | 1253 | @echo ' all - Build all targets marked with [*]' |
1254 | @echo '* vmlinux - Build the bare kernel' | 1254 | @echo '* vmlinux - Build the bare kernel' |
1255 | @echo '* modules - Build all modules' | 1255 | @echo '* modules - Build all modules' |
1256 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' | 1256 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
1257 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' | 1257 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' |
1258 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' | 1258 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
1259 | @echo ' dir/ - Build all files in dir and below' | 1259 | @echo ' dir/ - Build all files in dir and below' |
1260 | @echo ' dir/file.[oisS] - Build specified target only' | 1260 | @echo ' dir/file.[oisS] - Build specified target only' |
1261 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' | 1261 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' |
1262 | @echo ' (requires a recent binutils and recent build (System.map))' | 1262 | @echo ' (requires a recent binutils and recent build (System.map))' |
1263 | @echo ' dir/file.ko - Build module including final link' | 1263 | @echo ' dir/file.ko - Build module including final link' |
1264 | @echo ' modules_prepare - Set up for building external modules' | 1264 | @echo ' modules_prepare - Set up for building external modules' |
1265 | @echo ' tags/TAGS - Generate tags file for editors' | 1265 | @echo ' tags/TAGS - Generate tags file for editors' |
1266 | @echo ' cscope - Generate cscope index' | 1266 | @echo ' cscope - Generate cscope index' |
1267 | @echo ' gtags - Generate GNU GLOBAL index' | 1267 | @echo ' gtags - Generate GNU GLOBAL index' |
1268 | @echo ' kernelrelease - Output the release version string (use with make -s)' | 1268 | @echo ' kernelrelease - Output the release version string (use with make -s)' |
1269 | @echo ' kernelversion - Output the version stored in Makefile (use with make -s)' | 1269 | @echo ' kernelversion - Output the version stored in Makefile (use with make -s)' |
1270 | @echo ' image_name - Output the image name (use with make -s)' | 1270 | @echo ' image_name - Output the image name (use with make -s)' |
1271 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ | 1271 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
1272 | echo ' (default: $(INSTALL_HDR_PATH))'; \ | 1272 | echo ' (default: $(INSTALL_HDR_PATH))'; \ |
1273 | echo '' | 1273 | echo '' |
1274 | @echo 'Static analysers' | 1274 | @echo 'Static analysers' |
1275 | @echo ' checkstack - Generate a list of stack hogs' | 1275 | @echo ' checkstack - Generate a list of stack hogs' |
1276 | @echo ' namespacecheck - Name space analysis on compiled kernel' | 1276 | @echo ' namespacecheck - Name space analysis on compiled kernel' |
1277 | @echo ' versioncheck - Sanity check on version.h usage' | 1277 | @echo ' versioncheck - Sanity check on version.h usage' |
1278 | @echo ' includecheck - Check for duplicate included header files' | 1278 | @echo ' includecheck - Check for duplicate included header files' |
1279 | @echo ' export_report - List the usages of all exported symbols' | 1279 | @echo ' export_report - List the usages of all exported symbols' |
1280 | @echo ' headers_check - Sanity check on exported headers' | 1280 | @echo ' headers_check - Sanity check on exported headers' |
1281 | @echo ' headerdep - Detect inclusion cycles in headers' | 1281 | @echo ' headerdep - Detect inclusion cycles in headers' |
1282 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help | 1282 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help |
1283 | @echo '' | 1283 | @echo '' |
1284 | @echo 'Kernel selftest' | 1284 | @echo 'Kernel selftest' |
1285 | @echo ' kselftest - Build and run kernel selftest (run as root)' | 1285 | @echo ' kselftest - Build and run kernel selftest (run as root)' |
1286 | @echo ' Build, install, and boot kernel before' | 1286 | @echo ' Build, install, and boot kernel before' |
1287 | @echo ' running kselftest on it' | 1287 | @echo ' running kselftest on it' |
1288 | @echo '' | 1288 | @echo '' |
1289 | @echo 'Kernel packaging:' | 1289 | @echo 'Kernel packaging:' |
1290 | @$(MAKE) $(build)=$(package-dir) help | 1290 | @$(MAKE) $(build)=$(package-dir) help |
1291 | @echo '' | 1291 | @echo '' |
1292 | @echo 'Documentation targets:' | 1292 | @echo 'Documentation targets:' |
1293 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp | 1293 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp |
1294 | @echo '' | 1294 | @echo '' |
1295 | @echo 'Architecture specific targets ($(SRCARCH)):' | 1295 | @echo 'Architecture specific targets ($(SRCARCH)):' |
1296 | @$(if $(archhelp),$(archhelp),\ | 1296 | @$(if $(archhelp),$(archhelp),\ |
1297 | echo ' No architecture specific help defined for $(SRCARCH)') | 1297 | echo ' No architecture specific help defined for $(SRCARCH)') |
1298 | @echo '' | 1298 | @echo '' |
1299 | @$(if $(boards), \ | 1299 | @$(if $(boards), \ |
1300 | $(foreach b, $(boards), \ | 1300 | $(foreach b, $(boards), \ |
1301 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ | 1301 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ |
1302 | echo '') | 1302 | echo '') |
1303 | @$(if $(board-dirs), \ | 1303 | @$(if $(board-dirs), \ |
1304 | $(foreach b, $(board-dirs), \ | 1304 | $(foreach b, $(board-dirs), \ |
1305 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ | 1305 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ |
1306 | printf " %-16s - Show all of the above\\n" help-boards; \ | 1306 | printf " %-16s - Show all of the above\\n" help-boards; \ |
1307 | echo '') | 1307 | echo '') |
1308 | 1308 | ||
1309 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' | 1309 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
1310 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' | 1310 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
1311 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' | 1311 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
1312 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' | 1312 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' |
1313 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' | 1313 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
1314 | @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' | 1314 | @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' |
1315 | @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' | 1315 | @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' |
1316 | @echo ' 1: warnings which may be relevant and do not occur too often' | 1316 | @echo ' 1: warnings which may be relevant and do not occur too often' |
1317 | @echo ' 2: warnings which occur quite often but may still be relevant' | 1317 | @echo ' 2: warnings which occur quite often but may still be relevant' |
1318 | @echo ' 3: more obscure warnings, can most likely be ignored' | 1318 | @echo ' 3: more obscure warnings, can most likely be ignored' |
1319 | @echo ' Multiple levels can be combined with W=12 or W=123' | 1319 | @echo ' Multiple levels can be combined with W=12 or W=123' |
1320 | @echo '' | 1320 | @echo '' |
1321 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' | 1321 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' |
1322 | @echo 'For further info see the ./README file' | 1322 | @echo 'For further info see the ./README file' |
1323 | 1323 | ||
1324 | 1324 | ||
1325 | help-board-dirs := $(addprefix help-,$(board-dirs)) | 1325 | help-board-dirs := $(addprefix help-,$(board-dirs)) |
1326 | 1326 | ||
1327 | help-boards: $(help-board-dirs) | 1327 | help-boards: $(help-board-dirs) |
1328 | 1328 | ||
1329 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) | 1329 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) |
1330 | 1330 | ||
1331 | $(help-board-dirs): help-%: | 1331 | $(help-board-dirs): help-%: |
1332 | @echo 'Architecture specific targets ($(SRCARCH) $*):' | 1332 | @echo 'Architecture specific targets ($(SRCARCH) $*):' |
1333 | @$(if $(boards-per-dir), \ | 1333 | @$(if $(boards-per-dir), \ |
1334 | $(foreach b, $(boards-per-dir), \ | 1334 | $(foreach b, $(boards-per-dir), \ |
1335 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ | 1335 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ |
1336 | echo '') | 1336 | echo '') |
1337 | 1337 | ||
1338 | 1338 | ||
1339 | # Documentation targets | 1339 | # Documentation targets |
1340 | # --------------------------------------------------------------------------- | 1340 | # --------------------------------------------------------------------------- |
1341 | %docs: scripts_basic FORCE | 1341 | %docs: scripts_basic FORCE |
1342 | $(Q)$(MAKE) $(build)=scripts build_docproc | 1342 | $(Q)$(MAKE) $(build)=scripts build_docproc |
1343 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ | 1343 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ |
1344 | 1344 | ||
1345 | else # KBUILD_EXTMOD | 1345 | else # KBUILD_EXTMOD |
1346 | 1346 | ||
1347 | ### | 1347 | ### |
1348 | # External module support. | 1348 | # External module support. |
1349 | # When building external modules the kernel used as basis is considered | 1349 | # When building external modules the kernel used as basis is considered |
1350 | # read-only, and no consistency checks are made and the make | 1350 | # read-only, and no consistency checks are made and the make |
1351 | # system is not used on the basis kernel. If updates are required | 1351 | # system is not used on the basis kernel. If updates are required |
1352 | # in the basis kernel ordinary make commands (without M=...) must | 1352 | # in the basis kernel ordinary make commands (without M=...) must |
1353 | # be used. | 1353 | # be used. |
1354 | # | 1354 | # |
1355 | # The following are the only valid targets when building external | 1355 | # The following are the only valid targets when building external |
1356 | # modules. | 1356 | # modules. |
1357 | # make M=dir clean Delete all automatically generated files | 1357 | # make M=dir clean Delete all automatically generated files |
1358 | # make M=dir modules Make all modules in specified dir | 1358 | # make M=dir modules Make all modules in specified dir |
1359 | # make M=dir Same as 'make M=dir modules' | 1359 | # make M=dir Same as 'make M=dir modules' |
1360 | # make M=dir modules_install | 1360 | # make M=dir modules_install |
1361 | # Install the modules built in the module directory | 1361 | # Install the modules built in the module directory |
1362 | # Assumes install directory is already created | 1362 | # Assumes install directory is already created |
1363 | 1363 | ||
1364 | # We are always building modules | 1364 | # We are always building modules |
1365 | KBUILD_MODULES := 1 | 1365 | KBUILD_MODULES := 1 |
1366 | PHONY += crmodverdir | 1366 | PHONY += crmodverdir |
1367 | crmodverdir: | 1367 | crmodverdir: |
1368 | $(cmd_crmodverdir) | 1368 | $(cmd_crmodverdir) |
1369 | 1369 | ||
1370 | PHONY += $(objtree)/Module.symvers | 1370 | PHONY += $(objtree)/Module.symvers |
1371 | $(objtree)/Module.symvers: | 1371 | $(objtree)/Module.symvers: |
1372 | @test -e $(objtree)/Module.symvers || ( \ | 1372 | @test -e $(objtree)/Module.symvers || ( \ |
1373 | echo; \ | 1373 | echo; \ |
1374 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ | 1374 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ |
1375 | echo " is missing; modules will have no dependencies and modversions."; \ | 1375 | echo " is missing; modules will have no dependencies and modversions."; \ |
1376 | echo ) | 1376 | echo ) |
1377 | 1377 | ||
1378 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) | 1378 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) |
1379 | PHONY += $(module-dirs) modules | 1379 | PHONY += $(module-dirs) modules |
1380 | $(module-dirs): crmodverdir $(objtree)/Module.symvers | 1380 | $(module-dirs): crmodverdir $(objtree)/Module.symvers |
1381 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) | 1381 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) |
1382 | 1382 | ||
1383 | modules: $(module-dirs) | 1383 | modules: $(module-dirs) |
1384 | @$(kecho) ' Building modules, stage 2.'; | 1384 | @$(kecho) ' Building modules, stage 2.'; |
1385 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1385 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1386 | 1386 | ||
1387 | PHONY += modules_install | 1387 | PHONY += modules_install |
1388 | modules_install: _emodinst_ _emodinst_post | 1388 | modules_install: _emodinst_ _emodinst_post |
1389 | 1389 | ||
1390 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) | 1390 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) |
1391 | PHONY += _emodinst_ | 1391 | PHONY += _emodinst_ |
1392 | _emodinst_: | 1392 | _emodinst_: |
1393 | $(Q)mkdir -p $(MODLIB)/$(install-dir) | 1393 | $(Q)mkdir -p $(MODLIB)/$(install-dir) |
1394 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1394 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1395 | 1395 | ||
1396 | PHONY += _emodinst_post | 1396 | PHONY += _emodinst_post |
1397 | _emodinst_post: _emodinst_ | 1397 | _emodinst_post: _emodinst_ |
1398 | $(call cmd,depmod) | 1398 | $(call cmd,depmod) |
1399 | 1399 | ||
1400 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) | 1400 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
1401 | 1401 | ||
1402 | PHONY += $(clean-dirs) clean | 1402 | PHONY += $(clean-dirs) clean |
1403 | $(clean-dirs): | 1403 | $(clean-dirs): |
1404 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1404 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
1405 | 1405 | ||
1406 | clean: rm-dirs := $(MODVERDIR) | 1406 | clean: rm-dirs := $(MODVERDIR) |
1407 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers | 1407 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers |
1408 | 1408 | ||
1409 | help: | 1409 | help: |
1410 | @echo ' Building external modules.' | 1410 | @echo ' Building external modules.' |
1411 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' | 1411 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' |
1412 | @echo '' | 1412 | @echo '' |
1413 | @echo ' modules - default target, build the module(s)' | 1413 | @echo ' modules - default target, build the module(s)' |
1414 | @echo ' modules_install - install the module' | 1414 | @echo ' modules_install - install the module' |
1415 | @echo ' clean - remove generated files in module directory only' | 1415 | @echo ' clean - remove generated files in module directory only' |
1416 | @echo '' | 1416 | @echo '' |
1417 | 1417 | ||
1418 | # Dummies... | 1418 | # Dummies... |
1419 | PHONY += prepare scripts | 1419 | PHONY += prepare scripts |
1420 | prepare: ; | 1420 | prepare: ; |
1421 | scripts: ; | 1421 | scripts: ; |
1422 | endif # KBUILD_EXTMOD | 1422 | endif # KBUILD_EXTMOD |
1423 | 1423 | ||
1424 | clean: $(clean-dirs) | 1424 | clean: $(clean-dirs) |
1425 | $(call cmd,rmdirs) | 1425 | $(call cmd,rmdirs) |
1426 | $(call cmd,rmfiles) | 1426 | $(call cmd,rmfiles) |
1427 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ | 1427 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ |
1428 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1428 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
1429 | -o -name '*.ko.*' \ | 1429 | -o -name '*.ko.*' \ |
1430 | -o -name '*.dwo' \ | 1430 | -o -name '*.dwo' \ |
1431 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ | 1431 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
1432 | -o -name '*.symtypes' -o -name 'modules.order' \ | 1432 | -o -name '*.symtypes' -o -name 'modules.order' \ |
1433 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ | 1433 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ |
1434 | -o -name '*.gcno' \) -type f -print | xargs rm -f | 1434 | -o -name '*.gcno' \) -type f -print | xargs rm -f |
1435 | 1435 | ||
1436 | # Generate tags for editors | 1436 | # Generate tags for editors |
1437 | # --------------------------------------------------------------------------- | 1437 | # --------------------------------------------------------------------------- |
1438 | quiet_cmd_tags = GEN $@ | 1438 | quiet_cmd_tags = GEN $@ |
1439 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ | 1439 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ |
1440 | 1440 | ||
1441 | tags TAGS cscope gtags: FORCE | 1441 | tags TAGS cscope gtags: FORCE |
1442 | $(call cmd,tags) | 1442 | $(call cmd,tags) |
1443 | 1443 | ||
1444 | # Scripts to check various things for consistency | 1444 | # Scripts to check various things for consistency |
1445 | # --------------------------------------------------------------------------- | 1445 | # --------------------------------------------------------------------------- |
1446 | 1446 | ||
1447 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report | 1447 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report |
1448 | 1448 | ||
1449 | includecheck: | 1449 | includecheck: |
1450 | find $(srctree)/* $(RCS_FIND_IGNORE) \ | 1450 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
1451 | -name '*.[hcS]' -type f -print | sort \ | 1451 | -name '*.[hcS]' -type f -print | sort \ |
1452 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl | 1452 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
1453 | 1453 | ||
1454 | versioncheck: | 1454 | versioncheck: |
1455 | find $(srctree)/* $(RCS_FIND_IGNORE) \ | 1455 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
1456 | -name '*.[hcS]' -type f -print | sort \ | 1456 | -name '*.[hcS]' -type f -print | sort \ |
1457 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl | 1457 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
1458 | 1458 | ||
1459 | coccicheck: | 1459 | coccicheck: |
1460 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ | 1460 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ |
1461 | 1461 | ||
1462 | namespacecheck: | 1462 | namespacecheck: |
1463 | $(PERL) $(srctree)/scripts/namespace.pl | 1463 | $(PERL) $(srctree)/scripts/namespace.pl |
1464 | 1464 | ||
1465 | export_report: | 1465 | export_report: |
1466 | $(PERL) $(srctree)/scripts/export_report.pl | 1466 | $(PERL) $(srctree)/scripts/export_report.pl |
1467 | 1467 | ||
1468 | endif #ifeq ($(config-targets),1) | 1468 | endif #ifeq ($(config-targets),1) |
1469 | endif #ifeq ($(mixed-targets),1) | 1469 | endif #ifeq ($(mixed-targets),1) |
1470 | 1470 | ||
1471 | PHONY += checkstack kernelrelease kernelversion image_name | 1471 | PHONY += checkstack kernelrelease kernelversion image_name |
1472 | 1472 | ||
1473 | # UML needs a little special treatment here. It wants to use the host | 1473 | # UML needs a little special treatment here. It wants to use the host |
1474 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone | 1474 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone |
1475 | # else wants $(ARCH), including people doing cross-builds, which means | 1475 | # else wants $(ARCH), including people doing cross-builds, which means |
1476 | # that $(SUBARCH) doesn't work here. | 1476 | # that $(SUBARCH) doesn't work here. |
1477 | ifeq ($(ARCH), um) | 1477 | ifeq ($(ARCH), um) |
1478 | CHECKSTACK_ARCH := $(SUBARCH) | 1478 | CHECKSTACK_ARCH := $(SUBARCH) |
1479 | else | 1479 | else |
1480 | CHECKSTACK_ARCH := $(ARCH) | 1480 | CHECKSTACK_ARCH := $(ARCH) |
1481 | endif | 1481 | endif |
1482 | checkstack: | 1482 | checkstack: |
1483 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ | 1483 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
1484 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) | 1484 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
1485 | 1485 | ||
1486 | kernelrelease: | 1486 | kernelrelease: |
1487 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" | 1487 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
1488 | 1488 | ||
1489 | kernelversion: | 1489 | kernelversion: |
1490 | @echo $(KERNELVERSION) | 1490 | @echo $(KERNELVERSION) |
1491 | 1491 | ||
1492 | image_name: | 1492 | image_name: |
1493 | @echo $(KBUILD_IMAGE) | 1493 | @echo $(KBUILD_IMAGE) |
1494 | 1494 | ||
1495 | # Clear a bunch of variables before executing the submake | 1495 | # Clear a bunch of variables before executing the submake |
1496 | tools/: FORCE | 1496 | tools/: FORCE |
1497 | $(Q)mkdir -p $(objtree)/tools | 1497 | $(Q)mkdir -p $(objtree)/tools |
1498 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ | 1498 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ |
1499 | 1499 | ||
1500 | tools/%: FORCE | 1500 | tools/%: FORCE |
1501 | $(Q)mkdir -p $(objtree)/tools | 1501 | $(Q)mkdir -p $(objtree)/tools |
1502 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $* | 1502 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $* |
1503 | 1503 | ||
1504 | # Single targets | 1504 | # Single targets |
1505 | # --------------------------------------------------------------------------- | 1505 | # --------------------------------------------------------------------------- |
1506 | # Single targets are compatible with: | 1506 | # Single targets are compatible with: |
1507 | # - build with mixed source and output | 1507 | # - build with mixed source and output |
1508 | # - build with separate output dir 'make O=...' | 1508 | # - build with separate output dir 'make O=...' |
1509 | # - external modules | 1509 | # - external modules |
1510 | # | 1510 | # |
1511 | # target-dir => where to store outputfile | 1511 | # target-dir => where to store outputfile |
1512 | # build-dir => directory in kernel source tree to use | 1512 | # build-dir => directory in kernel source tree to use |
1513 | 1513 | ||
1514 | ifeq ($(KBUILD_EXTMOD),) | 1514 | ifeq ($(KBUILD_EXTMOD),) |
1515 | build-dir = $(patsubst %/,%,$(dir $@)) | 1515 | build-dir = $(patsubst %/,%,$(dir $@)) |
1516 | target-dir = $(dir $@) | 1516 | target-dir = $(dir $@) |
1517 | else | 1517 | else |
1518 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) | 1518 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) |
1519 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) | 1519 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) |
1520 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) | 1520 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) |
1521 | endif | 1521 | endif |
1522 | 1522 | ||
1523 | %.s: %.c prepare scripts FORCE | 1523 | %.s: %.c prepare scripts FORCE |
1524 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1524 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1525 | %.i: %.c prepare scripts FORCE | 1525 | %.i: %.c prepare scripts FORCE |
1526 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1526 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1527 | %.o: %.c prepare scripts FORCE | 1527 | %.o: %.c prepare scripts FORCE |
1528 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1528 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1529 | %.lst: %.c prepare scripts FORCE | 1529 | %.lst: %.c prepare scripts FORCE |
1530 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1530 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1531 | %.s: %.S prepare scripts FORCE | 1531 | %.s: %.S prepare scripts FORCE |
1532 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1532 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1533 | %.o: %.S prepare scripts FORCE | 1533 | %.o: %.S prepare scripts FORCE |
1534 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1534 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1535 | %.symtypes: %.c prepare scripts FORCE | 1535 | %.symtypes: %.c prepare scripts FORCE |
1536 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1536 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1537 | 1537 | ||
1538 | # Modules | 1538 | # Modules |
1539 | /: prepare scripts FORCE | 1539 | /: prepare scripts FORCE |
1540 | $(cmd_crmodverdir) | 1540 | $(cmd_crmodverdir) |
1541 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1541 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1542 | $(build)=$(build-dir) | 1542 | $(build)=$(build-dir) |
1543 | # Make sure the latest headers are built for Documentation | 1543 | # Make sure the latest headers are built for Documentation |
1544 | Documentation/: headers_install | 1544 | Documentation/: headers_install |
1545 | %/: prepare scripts FORCE | 1545 | %/: prepare scripts FORCE |
1546 | $(cmd_crmodverdir) | 1546 | $(cmd_crmodverdir) |
1547 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1547 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1548 | $(build)=$(build-dir) | 1548 | $(build)=$(build-dir) |
1549 | %.ko: prepare scripts FORCE | 1549 | %.ko: prepare scripts FORCE |
1550 | $(cmd_crmodverdir) | 1550 | $(cmd_crmodverdir) |
1551 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1551 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1552 | $(build)=$(build-dir) $(@:.ko=.o) | 1552 | $(build)=$(build-dir) $(@:.ko=.o) |
1553 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1553 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1554 | 1554 | ||
1555 | # FIXME Should go into a make.lib or something | 1555 | # FIXME Should go into a make.lib or something |
1556 | # =========================================================================== | 1556 | # =========================================================================== |
1557 | 1557 | ||
1558 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) | 1558 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) |
1559 | cmd_rmdirs = rm -rf $(rm-dirs) | 1559 | cmd_rmdirs = rm -rf $(rm-dirs) |
1560 | 1560 | ||
1561 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) | 1561 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) |
1562 | cmd_rmfiles = rm -f $(rm-files) | 1562 | cmd_rmfiles = rm -f $(rm-files) |
1563 | 1563 | ||
1564 | # Run depmod only if we have System.map and depmod is executable | 1564 | # Run depmod only if we have System.map and depmod is executable |
1565 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) | 1565 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) |
1566 | cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ | 1566 | cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ |
1567 | $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))" | 1567 | $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))" |
1568 | 1568 | ||
1569 | # Create temporary dir for module support files | 1569 | # Create temporary dir for module support files |
1570 | # clean it up only when building all modules | 1570 | # clean it up only when building all modules |
1571 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ | 1571 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ |
1572 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) | 1572 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
1573 | 1573 | ||
1574 | # read all saved command lines | 1574 | # read all saved command lines |
1575 | 1575 | ||
1576 | targets := $(wildcard $(sort $(targets))) | 1576 | targets := $(wildcard $(sort $(targets))) |
1577 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | 1577 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) |
1578 | 1578 | ||
1579 | ifneq ($(cmd_files),) | 1579 | ifneq ($(cmd_files),) |
1580 | $(cmd_files): ; # Do not try to update included dependency files | 1580 | $(cmd_files): ; # Do not try to update included dependency files |
1581 | include $(cmd_files) | 1581 | include $(cmd_files) |
1582 | endif | 1582 | endif |
1583 | 1583 | ||
1584 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir | 1584 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir |
1585 | # Usage: | 1585 | # Usage: |
1586 | # $(Q)$(MAKE) $(clean)=dir | 1586 | # $(Q)$(MAKE) $(clean)=dir |
1587 | clean := -f $(srctree)/scripts/Makefile.clean obj | 1587 | clean := -f $(srctree)/scripts/Makefile.clean obj |
1588 | 1588 | ||
1589 | endif # skip-makefile | 1589 | endif # skip-makefile |
1590 | 1590 | ||
1591 | PHONY += FORCE | 1591 | PHONY += FORCE |
1592 | FORCE: | 1592 | FORCE: |
1593 | 1593 | ||
1594 | # Declare the contents of the .PHONY variable as phony. We keep that | 1594 | # Declare the contents of the .PHONY variable as phony. We keep that |
1595 | # information in a variable so we can use it in if_changed and friends. | 1595 | # information in a variable so we can use it in if_changed and friends. |
1596 | .PHONY: $(PHONY) | 1596 | .PHONY: $(PHONY) |
1597 | 1597 |