Commit c517d838eb7d07bbe9507871fab3931deccff539
1 parent
feaf222925
Exists in
ti-lsk-linux-4.1.y
and in
10 other branches
Linux 4.0-rc1
.. after extensive statistical analysis of my G+ polling, I've come to the inescapable conclusion that internet polls are bad. Big surprise. But "Hurr durr I'ma sheep" trounced "I like online polls" by a 62-to-38% margin, in a poll that people weren't even supposed to participate in. Who can argue with solid numbers like that? 5,796 votes from people who can't even follow the most basic directions? In contrast, "v4.0" beat out "v3.20" by a slimmer margin of 56-to-44%, but with a total of 29,110 votes right now. Now, arguably, that vote spread is only about 3,200 votes, which is less than the almost six thousand votes that the "please ignore" poll got, so it could be considered noise. But hey, I asked, so I'll honor the votes.
Showing 1 changed file with 4 additions and 4 deletions Inline Diff
Makefile
1 | VERSION = 3 | 1 | VERSION = 4 |
2 | PATCHLEVEL = 19 | 2 | PATCHLEVEL = 0 |
3 | SUBLEVEL = 0 | 3 | SUBLEVEL = 0 |
4 | EXTRAVERSION = | 4 | EXTRAVERSION = -rc1 |
5 | NAME = Diseased Newt | 5 | NAME = Hurr durr I'ma sheep |
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/uapi \ | 394 | -Iarch/$(hdr-arch)/include/generated/uapi \ |
395 | -Iarch/$(hdr-arch)/include/generated \ | 395 | -Iarch/$(hdr-arch)/include/generated \ |
396 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ | 396 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ |
397 | -Iinclude \ | 397 | -Iinclude \ |
398 | $(USERINCLUDE) | 398 | $(USERINCLUDE) |
399 | 399 | ||
400 | KBUILD_CPPFLAGS := -D__KERNEL__ | 400 | KBUILD_CPPFLAGS := -D__KERNEL__ |
401 | 401 | ||
402 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ | 402 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
403 | -fno-strict-aliasing -fno-common \ | 403 | -fno-strict-aliasing -fno-common \ |
404 | -Werror-implicit-function-declaration \ | 404 | -Werror-implicit-function-declaration \ |
405 | -Wno-format-security \ | 405 | -Wno-format-security \ |
406 | -std=gnu89 | 406 | -std=gnu89 |
407 | 407 | ||
408 | KBUILD_AFLAGS_KERNEL := | 408 | KBUILD_AFLAGS_KERNEL := |
409 | KBUILD_CFLAGS_KERNEL := | 409 | KBUILD_CFLAGS_KERNEL := |
410 | KBUILD_AFLAGS := -D__ASSEMBLY__ | 410 | KBUILD_AFLAGS := -D__ASSEMBLY__ |
411 | KBUILD_AFLAGS_MODULE := -DMODULE | 411 | KBUILD_AFLAGS_MODULE := -DMODULE |
412 | KBUILD_CFLAGS_MODULE := -DMODULE | 412 | KBUILD_CFLAGS_MODULE := -DMODULE |
413 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds | 413 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds |
414 | 414 | ||
415 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) | 415 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) |
416 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) | 416 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) |
417 | KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) | 417 | KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) |
418 | 418 | ||
419 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION | 419 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
420 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC | 420 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |
421 | export CPP AR NM STRIP OBJCOPY OBJDUMP | 421 | export CPP AR NM STRIP OBJCOPY OBJDUMP |
422 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE | 422 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL PYTHON UTS_MACHINE |
423 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS | 423 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS |
424 | 424 | ||
425 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS | 425 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
426 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV CFLAGS_KASAN | 426 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV CFLAGS_KASAN |
427 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE | 427 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
428 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE | 428 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE |
429 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL | 429 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL |
430 | export KBUILD_ARFLAGS | 430 | export KBUILD_ARFLAGS |
431 | 431 | ||
432 | # When compiling out-of-tree modules, put MODVERDIR in the module | 432 | # When compiling out-of-tree modules, put MODVERDIR in the module |
433 | # tree rather than in the kernel tree. The kernel tree might | 433 | # tree rather than in the kernel tree. The kernel tree might |
434 | # even be read-only. | 434 | # even be read-only. |
435 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions | 435 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions |
436 | 436 | ||
437 | # Files to ignore in find ... statements | 437 | # Files to ignore in find ... statements |
438 | 438 | ||
439 | export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ | 439 | export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ |
440 | -name CVS -o -name .pc -o -name .hg -o -name .git \) \ | 440 | -name CVS -o -name .pc -o -name .hg -o -name .git \) \ |
441 | -prune -o | 441 | -prune -o |
442 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ | 442 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ |
443 | --exclude CVS --exclude .pc --exclude .hg --exclude .git | 443 | --exclude CVS --exclude .pc --exclude .hg --exclude .git |
444 | 444 | ||
445 | # =========================================================================== | 445 | # =========================================================================== |
446 | # Rules shared between *config targets and build targets | 446 | # Rules shared between *config targets and build targets |
447 | 447 | ||
448 | # Basic helpers built in scripts/ | 448 | # Basic helpers built in scripts/ |
449 | PHONY += scripts_basic | 449 | PHONY += scripts_basic |
450 | scripts_basic: | 450 | scripts_basic: |
451 | $(Q)$(MAKE) $(build)=scripts/basic | 451 | $(Q)$(MAKE) $(build)=scripts/basic |
452 | $(Q)rm -f .tmp_quiet_recordmcount | 452 | $(Q)rm -f .tmp_quiet_recordmcount |
453 | 453 | ||
454 | # To avoid any implicit rule to kick in, define an empty command. | 454 | # To avoid any implicit rule to kick in, define an empty command. |
455 | scripts/basic/%: scripts_basic ; | 455 | scripts/basic/%: scripts_basic ; |
456 | 456 | ||
457 | PHONY += outputmakefile | 457 | PHONY += outputmakefile |
458 | # outputmakefile generates a Makefile in the output directory, if using a | 458 | # outputmakefile generates a Makefile in the output directory, if using a |
459 | # separate output directory. This allows convenient use of make in the | 459 | # separate output directory. This allows convenient use of make in the |
460 | # output directory. | 460 | # output directory. |
461 | outputmakefile: | 461 | outputmakefile: |
462 | ifneq ($(KBUILD_SRC),) | 462 | ifneq ($(KBUILD_SRC),) |
463 | $(Q)ln -fsn $(srctree) source | 463 | $(Q)ln -fsn $(srctree) source |
464 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ | 464 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ |
465 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) | 465 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) |
466 | endif | 466 | endif |
467 | 467 | ||
468 | # Support for using generic headers in asm-generic | 468 | # Support for using generic headers in asm-generic |
469 | PHONY += asm-generic | 469 | PHONY += asm-generic |
470 | asm-generic: | 470 | asm-generic: |
471 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ | 471 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ |
472 | src=asm obj=arch/$(SRCARCH)/include/generated/asm | 472 | src=asm obj=arch/$(SRCARCH)/include/generated/asm |
473 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ | 473 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ |
474 | src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm | 474 | src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm |
475 | 475 | ||
476 | # To make sure we do not include .config for any of the *config targets | 476 | # To make sure we do not include .config for any of the *config targets |
477 | # catch them early, and hand them over to scripts/kconfig/Makefile | 477 | # catch them early, and hand them over to scripts/kconfig/Makefile |
478 | # It is allowed to specify more targets when calling make, including | 478 | # It is allowed to specify more targets when calling make, including |
479 | # mixing *config targets and build targets. | 479 | # mixing *config targets and build targets. |
480 | # For example 'make oldconfig all'. | 480 | # For example 'make oldconfig all'. |
481 | # Detect when mixed targets is specified, and make a second invocation | 481 | # Detect when mixed targets is specified, and make a second invocation |
482 | # of make so .config is not included in this case either (for *config). | 482 | # of make so .config is not included in this case either (for *config). |
483 | 483 | ||
484 | version_h := include/generated/uapi/linux/version.h | 484 | version_h := include/generated/uapi/linux/version.h |
485 | old_version_h := include/linux/version.h | 485 | old_version_h := include/linux/version.h |
486 | 486 | ||
487 | no-dot-config-targets := clean mrproper distclean \ | 487 | no-dot-config-targets := clean mrproper distclean \ |
488 | cscope gtags TAGS tags help% %docs check% coccicheck \ | 488 | cscope gtags TAGS tags help% %docs check% coccicheck \ |
489 | $(version_h) headers_% archheaders archscripts \ | 489 | $(version_h) headers_% archheaders archscripts \ |
490 | kernelversion %src-pkg | 490 | kernelversion %src-pkg |
491 | 491 | ||
492 | config-targets := 0 | 492 | config-targets := 0 |
493 | mixed-targets := 0 | 493 | mixed-targets := 0 |
494 | dot-config := 1 | 494 | dot-config := 1 |
495 | 495 | ||
496 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) | 496 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) |
497 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) | 497 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) |
498 | dot-config := 0 | 498 | dot-config := 0 |
499 | endif | 499 | endif |
500 | endif | 500 | endif |
501 | 501 | ||
502 | ifeq ($(KBUILD_EXTMOD),) | 502 | ifeq ($(KBUILD_EXTMOD),) |
503 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) | 503 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) |
504 | config-targets := 1 | 504 | config-targets := 1 |
505 | ifneq ($(words $(MAKECMDGOALS)),1) | 505 | ifneq ($(words $(MAKECMDGOALS)),1) |
506 | mixed-targets := 1 | 506 | mixed-targets := 1 |
507 | endif | 507 | endif |
508 | endif | 508 | endif |
509 | endif | 509 | endif |
510 | 510 | ||
511 | ifeq ($(mixed-targets),1) | 511 | ifeq ($(mixed-targets),1) |
512 | # =========================================================================== | 512 | # =========================================================================== |
513 | # We're called with mixed targets (*config and build targets). | 513 | # We're called with mixed targets (*config and build targets). |
514 | # Handle them one by one. | 514 | # Handle them one by one. |
515 | 515 | ||
516 | PHONY += $(MAKECMDGOALS) __build_one_by_one | 516 | PHONY += $(MAKECMDGOALS) __build_one_by_one |
517 | 517 | ||
518 | $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one | 518 | $(filter-out __build_one_by_one, $(MAKECMDGOALS)): __build_one_by_one |
519 | @: | 519 | @: |
520 | 520 | ||
521 | __build_one_by_one: | 521 | __build_one_by_one: |
522 | $(Q)set -e; \ | 522 | $(Q)set -e; \ |
523 | for i in $(MAKECMDGOALS); do \ | 523 | for i in $(MAKECMDGOALS); do \ |
524 | $(MAKE) -f $(srctree)/Makefile $$i; \ | 524 | $(MAKE) -f $(srctree)/Makefile $$i; \ |
525 | done | 525 | done |
526 | 526 | ||
527 | else | 527 | else |
528 | ifeq ($(config-targets),1) | 528 | ifeq ($(config-targets),1) |
529 | # =========================================================================== | 529 | # =========================================================================== |
530 | # *config targets only - make sure prerequisites are updated, and descend | 530 | # *config targets only - make sure prerequisites are updated, and descend |
531 | # in scripts/kconfig to make the *config target | 531 | # in scripts/kconfig to make the *config target |
532 | 532 | ||
533 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. | 533 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. |
534 | # KBUILD_DEFCONFIG may point out an alternative default configuration | 534 | # KBUILD_DEFCONFIG may point out an alternative default configuration |
535 | # used for 'make defconfig' | 535 | # used for 'make defconfig' |
536 | include $(srctree)/arch/$(SRCARCH)/Makefile | 536 | include $(srctree)/arch/$(SRCARCH)/Makefile |
537 | export KBUILD_DEFCONFIG KBUILD_KCONFIG | 537 | export KBUILD_DEFCONFIG KBUILD_KCONFIG |
538 | 538 | ||
539 | config: scripts_basic outputmakefile FORCE | 539 | config: scripts_basic outputmakefile FORCE |
540 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 540 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
541 | 541 | ||
542 | %config: scripts_basic outputmakefile FORCE | 542 | %config: scripts_basic outputmakefile FORCE |
543 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 543 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
544 | 544 | ||
545 | else | 545 | else |
546 | # =========================================================================== | 546 | # =========================================================================== |
547 | # Build targets only - this includes vmlinux, arch specific targets, clean | 547 | # Build targets only - this includes vmlinux, arch specific targets, clean |
548 | # targets and others. In general all targets except *config targets. | 548 | # targets and others. In general all targets except *config targets. |
549 | 549 | ||
550 | ifeq ($(KBUILD_EXTMOD),) | 550 | ifeq ($(KBUILD_EXTMOD),) |
551 | # Additional helpers built in scripts/ | 551 | # Additional helpers built in scripts/ |
552 | # Carefully list dependencies so we do not try to build scripts twice | 552 | # Carefully list dependencies so we do not try to build scripts twice |
553 | # in parallel | 553 | # in parallel |
554 | PHONY += scripts | 554 | PHONY += scripts |
555 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \ | 555 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \ |
556 | asm-generic | 556 | asm-generic |
557 | $(Q)$(MAKE) $(build)=$(@) | 557 | $(Q)$(MAKE) $(build)=$(@) |
558 | 558 | ||
559 | # Objects we will link into vmlinux / subdirs we need to visit | 559 | # Objects we will link into vmlinux / subdirs we need to visit |
560 | init-y := init/ | 560 | init-y := init/ |
561 | drivers-y := drivers/ sound/ firmware/ | 561 | drivers-y := drivers/ sound/ firmware/ |
562 | net-y := net/ | 562 | net-y := net/ |
563 | libs-y := lib/ | 563 | libs-y := lib/ |
564 | core-y := usr/ | 564 | core-y := usr/ |
565 | endif # KBUILD_EXTMOD | 565 | endif # KBUILD_EXTMOD |
566 | 566 | ||
567 | ifeq ($(dot-config),1) | 567 | ifeq ($(dot-config),1) |
568 | # Read in config | 568 | # Read in config |
569 | -include include/config/auto.conf | 569 | -include include/config/auto.conf |
570 | 570 | ||
571 | ifeq ($(KBUILD_EXTMOD),) | 571 | ifeq ($(KBUILD_EXTMOD),) |
572 | # Read in dependencies to all Kconfig* files, make sure to run | 572 | # Read in dependencies to all Kconfig* files, make sure to run |
573 | # oldconfig if changes are detected. | 573 | # oldconfig if changes are detected. |
574 | -include include/config/auto.conf.cmd | 574 | -include include/config/auto.conf.cmd |
575 | 575 | ||
576 | # To avoid any implicit rule to kick in, define an empty command | 576 | # To avoid any implicit rule to kick in, define an empty command |
577 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; | 577 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; |
578 | 578 | ||
579 | # If .config is newer than include/config/auto.conf, someone tinkered | 579 | # If .config is newer than include/config/auto.conf, someone tinkered |
580 | # with it and forgot to run make oldconfig. | 580 | # with it and forgot to run make oldconfig. |
581 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so | 581 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so |
582 | # we execute the config step to be sure to catch updated Kconfig files | 582 | # we execute the config step to be sure to catch updated Kconfig files |
583 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd | 583 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
584 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig | 584 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig |
585 | else | 585 | else |
586 | # external modules needs include/generated/autoconf.h and include/config/auto.conf | 586 | # external modules needs include/generated/autoconf.h and include/config/auto.conf |
587 | # but do not care if they are up-to-date. Use auto.conf to trigger the test | 587 | # but do not care if they are up-to-date. Use auto.conf to trigger the test |
588 | PHONY += include/config/auto.conf | 588 | PHONY += include/config/auto.conf |
589 | 589 | ||
590 | include/config/auto.conf: | 590 | include/config/auto.conf: |
591 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ | 591 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ |
592 | echo >&2; \ | 592 | echo >&2; \ |
593 | echo >&2 " ERROR: Kernel configuration is invalid."; \ | 593 | echo >&2 " ERROR: Kernel configuration is invalid."; \ |
594 | echo >&2 " include/generated/autoconf.h or $@ are missing.";\ | 594 | echo >&2 " include/generated/autoconf.h or $@ are missing.";\ |
595 | echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ | 595 | echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ |
596 | echo >&2 ; \ | 596 | echo >&2 ; \ |
597 | /bin/false) | 597 | /bin/false) |
598 | 598 | ||
599 | endif # KBUILD_EXTMOD | 599 | endif # KBUILD_EXTMOD |
600 | 600 | ||
601 | else | 601 | else |
602 | # Dummy target needed, because used as prerequisite | 602 | # Dummy target needed, because used as prerequisite |
603 | include/config/auto.conf: ; | 603 | include/config/auto.conf: ; |
604 | endif # $(dot-config) | 604 | endif # $(dot-config) |
605 | 605 | ||
606 | # The all: target is the default when no target is given on the | 606 | # The all: target is the default when no target is given on the |
607 | # command line. | 607 | # command line. |
608 | # This allow a user to issue only 'make' to build a kernel including modules | 608 | # This allow a user to issue only 'make' to build a kernel including modules |
609 | # Defaults to vmlinux, but the arch makefile usually adds further targets | 609 | # Defaults to vmlinux, but the arch makefile usually adds further targets |
610 | all: vmlinux | 610 | all: vmlinux |
611 | 611 | ||
612 | include $(srctree)/arch/$(SRCARCH)/Makefile | 612 | include $(srctree)/arch/$(SRCARCH)/Makefile |
613 | 613 | ||
614 | KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,) | 614 | KBUILD_CFLAGS += $(call cc-option,-fno-delete-null-pointer-checks,) |
615 | 615 | ||
616 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE | 616 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
617 | KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) | 617 | KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) |
618 | else | 618 | else |
619 | KBUILD_CFLAGS += -O2 | 619 | KBUILD_CFLAGS += -O2 |
620 | endif | 620 | endif |
621 | 621 | ||
622 | # Tell gcc to never replace conditional load with a non-conditional one | 622 | # Tell gcc to never replace conditional load with a non-conditional one |
623 | KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0) | 623 | KBUILD_CFLAGS += $(call cc-option,--param=allow-store-data-races=0) |
624 | 624 | ||
625 | ifdef CONFIG_READABLE_ASM | 625 | ifdef CONFIG_READABLE_ASM |
626 | # Disable optimizations that make assembler listings hard to read. | 626 | # Disable optimizations that make assembler listings hard to read. |
627 | # reorder blocks reorders the control in the function | 627 | # reorder blocks reorders the control in the function |
628 | # ipa clone creates specialized cloned functions | 628 | # ipa clone creates specialized cloned functions |
629 | # partial inlining inlines only parts of functions | 629 | # partial inlining inlines only parts of functions |
630 | KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ | 630 | KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ |
631 | $(call cc-option,-fno-ipa-cp-clone,) \ | 631 | $(call cc-option,-fno-ipa-cp-clone,) \ |
632 | $(call cc-option,-fno-partial-inlining) | 632 | $(call cc-option,-fno-partial-inlining) |
633 | endif | 633 | endif |
634 | 634 | ||
635 | ifneq ($(CONFIG_FRAME_WARN),0) | 635 | ifneq ($(CONFIG_FRAME_WARN),0) |
636 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) | 636 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) |
637 | endif | 637 | endif |
638 | 638 | ||
639 | # Handle stack protector mode. | 639 | # Handle stack protector mode. |
640 | # | 640 | # |
641 | # Since kbuild can potentially perform two passes (first with the old | 641 | # Since kbuild can potentially perform two passes (first with the old |
642 | # .config values and then with updated .config values), we cannot error out | 642 | # .config values and then with updated .config values), we cannot error out |
643 | # if a desired compiler option is unsupported. If we were to error, kbuild | 643 | # if a desired compiler option is unsupported. If we were to error, kbuild |
644 | # could never get to the second pass and actually notice that we changed | 644 | # could never get to the second pass and actually notice that we changed |
645 | # the option to something that was supported. | 645 | # the option to something that was supported. |
646 | # | 646 | # |
647 | # Additionally, we don't want to fallback and/or silently change which compiler | 647 | # Additionally, we don't want to fallback and/or silently change which compiler |
648 | # flags will be used, since that leads to producing kernels with different | 648 | # flags will be used, since that leads to producing kernels with different |
649 | # security feature characteristics depending on the compiler used. ("But I | 649 | # security feature characteristics depending on the compiler used. ("But I |
650 | # selected CC_STACKPROTECTOR_STRONG! Why did it build with _REGULAR?!") | 650 | # selected CC_STACKPROTECTOR_STRONG! Why did it build with _REGULAR?!") |
651 | # | 651 | # |
652 | # The middle ground is to warn here so that the failed option is obvious, but | 652 | # The middle ground is to warn here so that the failed option is obvious, but |
653 | # to let the build fail with bad compiler flags so that we can't produce a | 653 | # to let the build fail with bad compiler flags so that we can't produce a |
654 | # kernel when there is a CONFIG and compiler mismatch. | 654 | # kernel when there is a CONFIG and compiler mismatch. |
655 | # | 655 | # |
656 | ifdef CONFIG_CC_STACKPROTECTOR_REGULAR | 656 | ifdef CONFIG_CC_STACKPROTECTOR_REGULAR |
657 | stackp-flag := -fstack-protector | 657 | stackp-flag := -fstack-protector |
658 | ifeq ($(call cc-option, $(stackp-flag)),) | 658 | ifeq ($(call cc-option, $(stackp-flag)),) |
659 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \ | 659 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \ |
660 | -fstack-protector not supported by compiler) | 660 | -fstack-protector not supported by compiler) |
661 | endif | 661 | endif |
662 | else | 662 | else |
663 | ifdef CONFIG_CC_STACKPROTECTOR_STRONG | 663 | ifdef CONFIG_CC_STACKPROTECTOR_STRONG |
664 | stackp-flag := -fstack-protector-strong | 664 | stackp-flag := -fstack-protector-strong |
665 | ifeq ($(call cc-option, $(stackp-flag)),) | 665 | ifeq ($(call cc-option, $(stackp-flag)),) |
666 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \ | 666 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \ |
667 | -fstack-protector-strong not supported by compiler) | 667 | -fstack-protector-strong not supported by compiler) |
668 | endif | 668 | endif |
669 | else | 669 | else |
670 | # Force off for distro compilers that enable stack protector by default. | 670 | # Force off for distro compilers that enable stack protector by default. |
671 | stackp-flag := $(call cc-option, -fno-stack-protector) | 671 | stackp-flag := $(call cc-option, -fno-stack-protector) |
672 | endif | 672 | endif |
673 | endif | 673 | endif |
674 | KBUILD_CFLAGS += $(stackp-flag) | 674 | KBUILD_CFLAGS += $(stackp-flag) |
675 | 675 | ||
676 | ifeq ($(COMPILER),clang) | 676 | ifeq ($(COMPILER),clang) |
677 | KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) | 677 | KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) |
678 | KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) | 678 | KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) |
679 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) | 679 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) |
680 | KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) | 680 | KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) |
681 | KBUILD_CFLAGS += $(call cc-disable-warning, gnu) | 681 | KBUILD_CFLAGS += $(call cc-disable-warning, gnu) |
682 | # Quiet clang warning: comparison of unsigned expression < 0 is always false | 682 | # Quiet clang warning: comparison of unsigned expression < 0 is always false |
683 | KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) | 683 | KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) |
684 | # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the | 684 | # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the |
685 | # source of a reference will be _MergedGlobals and not on of the whitelisted names. | 685 | # source of a reference will be _MergedGlobals and not on of the whitelisted names. |
686 | # See modpost pattern 2 | 686 | # See modpost pattern 2 |
687 | KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) | 687 | KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) |
688 | KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) | 688 | KBUILD_CFLAGS += $(call cc-option, -fcatch-undefined-behavior) |
689 | else | 689 | else |
690 | 690 | ||
691 | # This warning generated too much noise in a regular build. | 691 | # This warning generated too much noise in a regular build. |
692 | # Use make W=1 to enable this warning (see scripts/Makefile.build) | 692 | # Use make W=1 to enable this warning (see scripts/Makefile.build) |
693 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) | 693 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) |
694 | endif | 694 | endif |
695 | 695 | ||
696 | ifdef CONFIG_FRAME_POINTER | 696 | ifdef CONFIG_FRAME_POINTER |
697 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls | 697 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
698 | else | 698 | else |
699 | # Some targets (ARM with Thumb2, for example), can't be built with frame | 699 | # Some targets (ARM with Thumb2, for example), can't be built with frame |
700 | # pointers. For those, we don't have FUNCTION_TRACER automatically | 700 | # pointers. For those, we don't have FUNCTION_TRACER automatically |
701 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is | 701 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is |
702 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use | 702 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use |
703 | # -fomit-frame-pointer with FUNCTION_TRACER. | 703 | # -fomit-frame-pointer with FUNCTION_TRACER. |
704 | ifndef CONFIG_FUNCTION_TRACER | 704 | ifndef CONFIG_FUNCTION_TRACER |
705 | KBUILD_CFLAGS += -fomit-frame-pointer | 705 | KBUILD_CFLAGS += -fomit-frame-pointer |
706 | endif | 706 | endif |
707 | endif | 707 | endif |
708 | 708 | ||
709 | KBUILD_CFLAGS += $(call cc-option, -fno-var-tracking-assignments) | 709 | KBUILD_CFLAGS += $(call cc-option, -fno-var-tracking-assignments) |
710 | 710 | ||
711 | ifdef CONFIG_DEBUG_INFO | 711 | ifdef CONFIG_DEBUG_INFO |
712 | ifdef CONFIG_DEBUG_INFO_SPLIT | 712 | ifdef CONFIG_DEBUG_INFO_SPLIT |
713 | KBUILD_CFLAGS += $(call cc-option, -gsplit-dwarf, -g) | 713 | KBUILD_CFLAGS += $(call cc-option, -gsplit-dwarf, -g) |
714 | else | 714 | else |
715 | KBUILD_CFLAGS += -g | 715 | KBUILD_CFLAGS += -g |
716 | endif | 716 | endif |
717 | KBUILD_AFLAGS += -Wa,-gdwarf-2 | 717 | KBUILD_AFLAGS += -Wa,-gdwarf-2 |
718 | endif | 718 | endif |
719 | ifdef CONFIG_DEBUG_INFO_DWARF4 | 719 | ifdef CONFIG_DEBUG_INFO_DWARF4 |
720 | KBUILD_CFLAGS += $(call cc-option, -gdwarf-4,) | 720 | KBUILD_CFLAGS += $(call cc-option, -gdwarf-4,) |
721 | endif | 721 | endif |
722 | 722 | ||
723 | ifdef CONFIG_DEBUG_INFO_REDUCED | 723 | ifdef CONFIG_DEBUG_INFO_REDUCED |
724 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ | 724 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ |
725 | $(call cc-option,-fno-var-tracking) | 725 | $(call cc-option,-fno-var-tracking) |
726 | endif | 726 | endif |
727 | 727 | ||
728 | ifdef CONFIG_FUNCTION_TRACER | 728 | ifdef CONFIG_FUNCTION_TRACER |
729 | ifndef CC_FLAGS_FTRACE | 729 | ifndef CC_FLAGS_FTRACE |
730 | CC_FLAGS_FTRACE := -pg | 730 | CC_FLAGS_FTRACE := -pg |
731 | endif | 731 | endif |
732 | export CC_FLAGS_FTRACE | 732 | export CC_FLAGS_FTRACE |
733 | ifdef CONFIG_HAVE_FENTRY | 733 | ifdef CONFIG_HAVE_FENTRY |
734 | CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) | 734 | CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) |
735 | endif | 735 | endif |
736 | KBUILD_CFLAGS += $(CC_FLAGS_FTRACE) $(CC_USING_FENTRY) | 736 | KBUILD_CFLAGS += $(CC_FLAGS_FTRACE) $(CC_USING_FENTRY) |
737 | KBUILD_AFLAGS += $(CC_USING_FENTRY) | 737 | KBUILD_AFLAGS += $(CC_USING_FENTRY) |
738 | ifdef CONFIG_DYNAMIC_FTRACE | 738 | ifdef CONFIG_DYNAMIC_FTRACE |
739 | ifdef CONFIG_HAVE_C_RECORDMCOUNT | 739 | ifdef CONFIG_HAVE_C_RECORDMCOUNT |
740 | BUILD_C_RECORDMCOUNT := y | 740 | BUILD_C_RECORDMCOUNT := y |
741 | export BUILD_C_RECORDMCOUNT | 741 | export BUILD_C_RECORDMCOUNT |
742 | endif | 742 | endif |
743 | endif | 743 | endif |
744 | endif | 744 | endif |
745 | 745 | ||
746 | # We trigger additional mismatches with less inlining | 746 | # We trigger additional mismatches with less inlining |
747 | ifdef CONFIG_DEBUG_SECTION_MISMATCH | 747 | ifdef CONFIG_DEBUG_SECTION_MISMATCH |
748 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) | 748 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) |
749 | endif | 749 | endif |
750 | 750 | ||
751 | # arch Makefile may override CC so keep this after arch Makefile is included | 751 | # arch Makefile may override CC so keep this after arch Makefile is included |
752 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) | 752 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
753 | CHECKFLAGS += $(NOSTDINC_FLAGS) | 753 | CHECKFLAGS += $(NOSTDINC_FLAGS) |
754 | 754 | ||
755 | # warn about C99 declaration after statement | 755 | # warn about C99 declaration after statement |
756 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) | 756 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
757 | 757 | ||
758 | # disable pointer signed / unsigned warnings in gcc 4.0 | 758 | # disable pointer signed / unsigned warnings in gcc 4.0 |
759 | KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) | 759 | KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) |
760 | 760 | ||
761 | # disable invalid "can't wrap" optimizations for signed / pointers | 761 | # disable invalid "can't wrap" optimizations for signed / pointers |
762 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) | 762 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) |
763 | 763 | ||
764 | # conserve stack if available | 764 | # conserve stack if available |
765 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) | 765 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) |
766 | 766 | ||
767 | # disallow errors like 'EXPORT_GPL(foo);' with missing header | 767 | # disallow errors like 'EXPORT_GPL(foo);' with missing header |
768 | KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) | 768 | KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) |
769 | 769 | ||
770 | # require functions to have arguments in prototypes, not empty 'int foo()' | 770 | # require functions to have arguments in prototypes, not empty 'int foo()' |
771 | KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) | 771 | KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) |
772 | 772 | ||
773 | # Prohibit date/time macros, which would make the build non-deterministic | 773 | # Prohibit date/time macros, which would make the build non-deterministic |
774 | KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) | 774 | KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) |
775 | 775 | ||
776 | # use the deterministic mode of AR if available | 776 | # use the deterministic mode of AR if available |
777 | KBUILD_ARFLAGS := $(call ar-option,D) | 777 | KBUILD_ARFLAGS := $(call ar-option,D) |
778 | 778 | ||
779 | # check for 'asm goto' | 779 | # check for 'asm goto' |
780 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) | 780 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) |
781 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO | 781 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO |
782 | endif | 782 | endif |
783 | 783 | ||
784 | include $(srctree)/scripts/Makefile.kasan | 784 | include $(srctree)/scripts/Makefile.kasan |
785 | include $(srctree)/scripts/Makefile.extrawarn | 785 | include $(srctree)/scripts/Makefile.extrawarn |
786 | 786 | ||
787 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments | 787 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
788 | KBUILD_CPPFLAGS += $(KCPPFLAGS) | 788 | KBUILD_CPPFLAGS += $(KCPPFLAGS) |
789 | KBUILD_AFLAGS += $(KAFLAGS) | 789 | KBUILD_AFLAGS += $(KAFLAGS) |
790 | KBUILD_CFLAGS += $(KCFLAGS) | 790 | KBUILD_CFLAGS += $(KCFLAGS) |
791 | 791 | ||
792 | # Use --build-id when available. | 792 | # Use --build-id when available. |
793 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ | 793 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ |
794 | $(call cc-ldoption, -Wl$(comma)--build-id,)) | 794 | $(call cc-ldoption, -Wl$(comma)--build-id,)) |
795 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) | 795 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) |
796 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) | 796 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) |
797 | 797 | ||
798 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) | 798 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) |
799 | LDFLAGS_vmlinux += $(call ld-option, -X,) | 799 | LDFLAGS_vmlinux += $(call ld-option, -X,) |
800 | endif | 800 | endif |
801 | 801 | ||
802 | # Default kernel image to build when no specific target is given. | 802 | # Default kernel image to build when no specific target is given. |
803 | # KBUILD_IMAGE may be overruled on the command line or | 803 | # KBUILD_IMAGE may be overruled on the command line or |
804 | # set in the environment | 804 | # set in the environment |
805 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over | 805 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over |
806 | # this default value | 806 | # this default value |
807 | export KBUILD_IMAGE ?= vmlinux | 807 | export KBUILD_IMAGE ?= vmlinux |
808 | 808 | ||
809 | # | 809 | # |
810 | # INSTALL_PATH specifies where to place the updated kernel and system map | 810 | # INSTALL_PATH specifies where to place the updated kernel and system map |
811 | # images. Default is /boot, but you can set it to other values | 811 | # images. Default is /boot, but you can set it to other values |
812 | export INSTALL_PATH ?= /boot | 812 | export INSTALL_PATH ?= /boot |
813 | 813 | ||
814 | # | 814 | # |
815 | # INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots. | 815 | # INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots. |
816 | # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as | 816 | # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as |
817 | # an argument if needed. Otherwise it defaults to the kernel install path | 817 | # an argument if needed. Otherwise it defaults to the kernel install path |
818 | # | 818 | # |
819 | export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) | 819 | export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) |
820 | 820 | ||
821 | # | 821 | # |
822 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory | 822 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory |
823 | # relocations required by build roots. This is not defined in the | 823 | # relocations required by build roots. This is not defined in the |
824 | # makefile but the argument can be passed to make if needed. | 824 | # makefile but the argument can be passed to make if needed. |
825 | # | 825 | # |
826 | 826 | ||
827 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) | 827 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
828 | export MODLIB | 828 | export MODLIB |
829 | 829 | ||
830 | # | 830 | # |
831 | # INSTALL_MOD_STRIP, if defined, will cause modules to be | 831 | # INSTALL_MOD_STRIP, if defined, will cause modules to be |
832 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then | 832 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then |
833 | # the default option --strip-debug will be used. Otherwise, | 833 | # the default option --strip-debug will be used. Otherwise, |
834 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. | 834 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. |
835 | 835 | ||
836 | ifdef INSTALL_MOD_STRIP | 836 | ifdef INSTALL_MOD_STRIP |
837 | ifeq ($(INSTALL_MOD_STRIP),1) | 837 | ifeq ($(INSTALL_MOD_STRIP),1) |
838 | mod_strip_cmd = $(STRIP) --strip-debug | 838 | mod_strip_cmd = $(STRIP) --strip-debug |
839 | else | 839 | else |
840 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) | 840 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
841 | endif # INSTALL_MOD_STRIP=1 | 841 | endif # INSTALL_MOD_STRIP=1 |
842 | else | 842 | else |
843 | mod_strip_cmd = true | 843 | mod_strip_cmd = true |
844 | endif # INSTALL_MOD_STRIP | 844 | endif # INSTALL_MOD_STRIP |
845 | export mod_strip_cmd | 845 | export mod_strip_cmd |
846 | 846 | ||
847 | # CONFIG_MODULE_COMPRESS, if defined, will cause module to be compressed | 847 | # CONFIG_MODULE_COMPRESS, if defined, will cause module to be compressed |
848 | # after they are installed in agreement with CONFIG_MODULE_COMPRESS_GZIP | 848 | # after they are installed in agreement with CONFIG_MODULE_COMPRESS_GZIP |
849 | # or CONFIG_MODULE_COMPRESS_XZ. | 849 | # or CONFIG_MODULE_COMPRESS_XZ. |
850 | 850 | ||
851 | mod_compress_cmd = true | 851 | mod_compress_cmd = true |
852 | ifdef CONFIG_MODULE_COMPRESS | 852 | ifdef CONFIG_MODULE_COMPRESS |
853 | ifdef CONFIG_MODULE_COMPRESS_GZIP | 853 | ifdef CONFIG_MODULE_COMPRESS_GZIP |
854 | mod_compress_cmd = gzip -n | 854 | mod_compress_cmd = gzip -n |
855 | endif # CONFIG_MODULE_COMPRESS_GZIP | 855 | endif # CONFIG_MODULE_COMPRESS_GZIP |
856 | ifdef CONFIG_MODULE_COMPRESS_XZ | 856 | ifdef CONFIG_MODULE_COMPRESS_XZ |
857 | mod_compress_cmd = xz | 857 | mod_compress_cmd = xz |
858 | endif # CONFIG_MODULE_COMPRESS_XZ | 858 | endif # CONFIG_MODULE_COMPRESS_XZ |
859 | endif # CONFIG_MODULE_COMPRESS | 859 | endif # CONFIG_MODULE_COMPRESS |
860 | export mod_compress_cmd | 860 | export mod_compress_cmd |
861 | 861 | ||
862 | # Select initial ramdisk compression format, default is gzip(1). | 862 | # Select initial ramdisk compression format, default is gzip(1). |
863 | # This shall be used by the dracut(8) tool while creating an initramfs image. | 863 | # This shall be used by the dracut(8) tool while creating an initramfs image. |
864 | # | 864 | # |
865 | INITRD_COMPRESS-y := gzip | 865 | INITRD_COMPRESS-y := gzip |
866 | INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2 | 866 | INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2 |
867 | INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma | 867 | INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma |
868 | INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz | 868 | INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz |
869 | INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo | 869 | INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo |
870 | INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4 | 870 | INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4 |
871 | # do not export INITRD_COMPRESS, since we didn't actually | 871 | # do not export INITRD_COMPRESS, since we didn't actually |
872 | # choose a sane default compression above. | 872 | # choose a sane default compression above. |
873 | # export INITRD_COMPRESS := $(INITRD_COMPRESS-y) | 873 | # export INITRD_COMPRESS := $(INITRD_COMPRESS-y) |
874 | 874 | ||
875 | ifdef CONFIG_MODULE_SIG_ALL | 875 | ifdef CONFIG_MODULE_SIG_ALL |
876 | MODSECKEY = ./signing_key.priv | 876 | MODSECKEY = ./signing_key.priv |
877 | MODPUBKEY = ./signing_key.x509 | 877 | MODPUBKEY = ./signing_key.x509 |
878 | export MODPUBKEY | 878 | export MODPUBKEY |
879 | mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) | 879 | mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) |
880 | else | 880 | else |
881 | mod_sign_cmd = true | 881 | mod_sign_cmd = true |
882 | endif | 882 | endif |
883 | export mod_sign_cmd | 883 | export mod_sign_cmd |
884 | 884 | ||
885 | 885 | ||
886 | ifeq ($(KBUILD_EXTMOD),) | 886 | ifeq ($(KBUILD_EXTMOD),) |
887 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ | 887 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
888 | 888 | ||
889 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ | 889 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ |
890 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ | 890 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ |
891 | $(net-y) $(net-m) $(libs-y) $(libs-m))) | 891 | $(net-y) $(net-m) $(libs-y) $(libs-m))) |
892 | 892 | ||
893 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ | 893 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ |
894 | $(init-) $(core-) $(drivers-) $(net-) $(libs-)))) | 894 | $(init-) $(core-) $(drivers-) $(net-) $(libs-)))) |
895 | 895 | ||
896 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) | 896 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) |
897 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) | 897 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) |
898 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) | 898 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) |
899 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) | 899 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) |
900 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) | 900 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) |
901 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) | 901 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) |
902 | libs-y := $(libs-y1) $(libs-y2) | 902 | libs-y := $(libs-y1) $(libs-y2) |
903 | 903 | ||
904 | # Externally visible symbols (used by link-vmlinux.sh) | 904 | # Externally visible symbols (used by link-vmlinux.sh) |
905 | export KBUILD_VMLINUX_INIT := $(head-y) $(init-y) | 905 | export KBUILD_VMLINUX_INIT := $(head-y) $(init-y) |
906 | export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) | 906 | export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) |
907 | export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds | 907 | export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds |
908 | export LDFLAGS_vmlinux | 908 | export LDFLAGS_vmlinux |
909 | # used by scripts/pacmage/Makefile | 909 | # used by scripts/pacmage/Makefile |
910 | export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt) | 910 | export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt) |
911 | 911 | ||
912 | vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) | 912 | vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) |
913 | 913 | ||
914 | # Final link of vmlinux | 914 | # Final link of vmlinux |
915 | cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) | 915 | cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) |
916 | quiet_cmd_link-vmlinux = LINK $@ | 916 | quiet_cmd_link-vmlinux = LINK $@ |
917 | 917 | ||
918 | # Include targets which we want to | 918 | # Include targets which we want to |
919 | # execute if the rest of the kernel build went well. | 919 | # execute if the rest of the kernel build went well. |
920 | vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE | 920 | vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE |
921 | ifdef CONFIG_HEADERS_CHECK | 921 | ifdef CONFIG_HEADERS_CHECK |
922 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check | 922 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
923 | endif | 923 | endif |
924 | ifdef CONFIG_SAMPLES | 924 | ifdef CONFIG_SAMPLES |
925 | $(Q)$(MAKE) $(build)=samples | 925 | $(Q)$(MAKE) $(build)=samples |
926 | endif | 926 | endif |
927 | ifdef CONFIG_BUILD_DOCSRC | 927 | ifdef CONFIG_BUILD_DOCSRC |
928 | $(Q)$(MAKE) $(build)=Documentation | 928 | $(Q)$(MAKE) $(build)=Documentation |
929 | endif | 929 | endif |
930 | ifdef CONFIG_GDB_SCRIPTS | 930 | ifdef CONFIG_GDB_SCRIPTS |
931 | $(Q)ln -fsn `cd $(srctree) && /bin/pwd`/scripts/gdb/vmlinux-gdb.py | 931 | $(Q)ln -fsn `cd $(srctree) && /bin/pwd`/scripts/gdb/vmlinux-gdb.py |
932 | endif | 932 | endif |
933 | +$(call if_changed,link-vmlinux) | 933 | +$(call if_changed,link-vmlinux) |
934 | 934 | ||
935 | # The actual objects are generated when descending, | 935 | # The actual objects are generated when descending, |
936 | # make sure no implicit rule kicks in | 936 | # make sure no implicit rule kicks in |
937 | $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; | 937 | $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; |
938 | 938 | ||
939 | # Handle descending into subdirectories listed in $(vmlinux-dirs) | 939 | # Handle descending into subdirectories listed in $(vmlinux-dirs) |
940 | # Preset locale variables to speed up the build process. Limit locale | 940 | # Preset locale variables to speed up the build process. Limit locale |
941 | # tweaks to this spot to avoid wrong language settings when running | 941 | # tweaks to this spot to avoid wrong language settings when running |
942 | # make menuconfig etc. | 942 | # make menuconfig etc. |
943 | # Error messages still appears in the original language | 943 | # Error messages still appears in the original language |
944 | 944 | ||
945 | PHONY += $(vmlinux-dirs) | 945 | PHONY += $(vmlinux-dirs) |
946 | $(vmlinux-dirs): prepare scripts | 946 | $(vmlinux-dirs): prepare scripts |
947 | $(Q)$(MAKE) $(build)=$@ | 947 | $(Q)$(MAKE) $(build)=$@ |
948 | 948 | ||
949 | define filechk_kernel.release | 949 | define filechk_kernel.release |
950 | echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" | 950 | echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
951 | endef | 951 | endef |
952 | 952 | ||
953 | # Store (new) KERNELRELEASE string in include/config/kernel.release | 953 | # Store (new) KERNELRELEASE string in include/config/kernel.release |
954 | include/config/kernel.release: include/config/auto.conf FORCE | 954 | include/config/kernel.release: include/config/auto.conf FORCE |
955 | $(call filechk,kernel.release) | 955 | $(call filechk,kernel.release) |
956 | 956 | ||
957 | 957 | ||
958 | # Things we need to do before we recursively start building the kernel | 958 | # Things we need to do before we recursively start building the kernel |
959 | # or the modules are listed in "prepare". | 959 | # or the modules are listed in "prepare". |
960 | # A multi level approach is used. prepareN is processed before prepareN-1. | 960 | # A multi level approach is used. prepareN is processed before prepareN-1. |
961 | # archprepare is used in arch Makefiles and when processed asm symlink, | 961 | # archprepare is used in arch Makefiles and when processed asm symlink, |
962 | # version.h and scripts_basic is processed / created. | 962 | # version.h and scripts_basic is processed / created. |
963 | 963 | ||
964 | # Listed in dependency order | 964 | # Listed in dependency order |
965 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 | 965 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
966 | 966 | ||
967 | # prepare3 is used to check if we are building in a separate output directory, | 967 | # prepare3 is used to check if we are building in a separate output directory, |
968 | # and if so do: | 968 | # and if so do: |
969 | # 1) Check that make has not been executed in the kernel src $(srctree) | 969 | # 1) Check that make has not been executed in the kernel src $(srctree) |
970 | prepare3: include/config/kernel.release | 970 | prepare3: include/config/kernel.release |
971 | ifneq ($(KBUILD_SRC),) | 971 | ifneq ($(KBUILD_SRC),) |
972 | @$(kecho) ' Using $(srctree) as source for kernel' | 972 | @$(kecho) ' Using $(srctree) as source for kernel' |
973 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ | 973 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
974 | echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ | 974 | echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ |
975 | echo >&2 " in the '$(srctree)' directory.";\ | 975 | echo >&2 " in the '$(srctree)' directory.";\ |
976 | /bin/false; \ | 976 | /bin/false; \ |
977 | fi; | 977 | fi; |
978 | endif | 978 | endif |
979 | 979 | ||
980 | # prepare2 creates a makefile if using a separate output directory | 980 | # prepare2 creates a makefile if using a separate output directory |
981 | prepare2: prepare3 outputmakefile asm-generic | 981 | prepare2: prepare3 outputmakefile asm-generic |
982 | 982 | ||
983 | prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ | 983 | prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ |
984 | include/config/auto.conf | 984 | include/config/auto.conf |
985 | $(cmd_crmodverdir) | 985 | $(cmd_crmodverdir) |
986 | 986 | ||
987 | archprepare: archheaders archscripts prepare1 scripts_basic | 987 | archprepare: archheaders archscripts prepare1 scripts_basic |
988 | 988 | ||
989 | prepare0: archprepare FORCE | 989 | prepare0: archprepare FORCE |
990 | $(Q)$(MAKE) $(build)=. | 990 | $(Q)$(MAKE) $(build)=. |
991 | 991 | ||
992 | # All the preparing.. | 992 | # All the preparing.. |
993 | prepare: prepare0 | 993 | prepare: prepare0 |
994 | 994 | ||
995 | # Generate some files | 995 | # Generate some files |
996 | # --------------------------------------------------------------------------- | 996 | # --------------------------------------------------------------------------- |
997 | 997 | ||
998 | # KERNELRELEASE can change from a few different places, meaning version.h | 998 | # KERNELRELEASE can change from a few different places, meaning version.h |
999 | # needs to be updated, so this check is forced on all builds | 999 | # needs to be updated, so this check is forced on all builds |
1000 | 1000 | ||
1001 | uts_len := 64 | 1001 | uts_len := 64 |
1002 | define filechk_utsrelease.h | 1002 | define filechk_utsrelease.h |
1003 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ | 1003 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ |
1004 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ | 1004 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ |
1005 | exit 1; \ | 1005 | exit 1; \ |
1006 | fi; \ | 1006 | fi; \ |
1007 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) | 1007 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) |
1008 | endef | 1008 | endef |
1009 | 1009 | ||
1010 | define filechk_version.h | 1010 | define filechk_version.h |
1011 | (echo \#define LINUX_VERSION_CODE $(shell \ | 1011 | (echo \#define LINUX_VERSION_CODE $(shell \ |
1012 | expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ | 1012 | expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ |
1013 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) | 1013 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) |
1014 | endef | 1014 | endef |
1015 | 1015 | ||
1016 | $(version_h): $(srctree)/Makefile FORCE | 1016 | $(version_h): $(srctree)/Makefile FORCE |
1017 | $(call filechk,version.h) | 1017 | $(call filechk,version.h) |
1018 | $(Q)rm -f $(old_version_h) | 1018 | $(Q)rm -f $(old_version_h) |
1019 | 1019 | ||
1020 | include/generated/utsrelease.h: include/config/kernel.release FORCE | 1020 | include/generated/utsrelease.h: include/config/kernel.release FORCE |
1021 | $(call filechk,utsrelease.h) | 1021 | $(call filechk,utsrelease.h) |
1022 | 1022 | ||
1023 | PHONY += headerdep | 1023 | PHONY += headerdep |
1024 | headerdep: | 1024 | headerdep: |
1025 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ | 1025 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ |
1026 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include | 1026 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include |
1027 | 1027 | ||
1028 | # --------------------------------------------------------------------------- | 1028 | # --------------------------------------------------------------------------- |
1029 | 1029 | ||
1030 | PHONY += depend dep | 1030 | PHONY += depend dep |
1031 | depend dep: | 1031 | depend dep: |
1032 | @echo '*** Warning: make $@ is unnecessary now.' | 1032 | @echo '*** Warning: make $@ is unnecessary now.' |
1033 | 1033 | ||
1034 | # --------------------------------------------------------------------------- | 1034 | # --------------------------------------------------------------------------- |
1035 | # Firmware install | 1035 | # Firmware install |
1036 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware | 1036 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware |
1037 | export INSTALL_FW_PATH | 1037 | export INSTALL_FW_PATH |
1038 | 1038 | ||
1039 | PHONY += firmware_install | 1039 | PHONY += firmware_install |
1040 | firmware_install: FORCE | 1040 | firmware_install: FORCE |
1041 | @mkdir -p $(objtree)/firmware | 1041 | @mkdir -p $(objtree)/firmware |
1042 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install | 1042 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install |
1043 | 1043 | ||
1044 | # --------------------------------------------------------------------------- | 1044 | # --------------------------------------------------------------------------- |
1045 | # Kernel headers | 1045 | # Kernel headers |
1046 | 1046 | ||
1047 | #Default location for installed headers | 1047 | #Default location for installed headers |
1048 | export INSTALL_HDR_PATH = $(objtree)/usr | 1048 | export INSTALL_HDR_PATH = $(objtree)/usr |
1049 | 1049 | ||
1050 | # If we do an all arch process set dst to asm-$(hdr-arch) | 1050 | # If we do an all arch process set dst to asm-$(hdr-arch) |
1051 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) | 1051 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) |
1052 | 1052 | ||
1053 | PHONY += archheaders | 1053 | PHONY += archheaders |
1054 | archheaders: | 1054 | archheaders: |
1055 | 1055 | ||
1056 | PHONY += archscripts | 1056 | PHONY += archscripts |
1057 | archscripts: | 1057 | archscripts: |
1058 | 1058 | ||
1059 | PHONY += __headers | 1059 | PHONY += __headers |
1060 | __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE | 1060 | __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE |
1061 | $(Q)$(MAKE) $(build)=scripts build_unifdef | 1061 | $(Q)$(MAKE) $(build)=scripts build_unifdef |
1062 | 1062 | ||
1063 | PHONY += headers_install_all | 1063 | PHONY += headers_install_all |
1064 | headers_install_all: | 1064 | headers_install_all: |
1065 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install | 1065 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install |
1066 | 1066 | ||
1067 | PHONY += headers_install | 1067 | PHONY += headers_install |
1068 | headers_install: __headers | 1068 | headers_install: __headers |
1069 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ | 1069 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ |
1070 | $(error Headers not exportable for the $(SRCARCH) architecture)) | 1070 | $(error Headers not exportable for the $(SRCARCH) architecture)) |
1071 | $(Q)$(MAKE) $(hdr-inst)=include/uapi | 1071 | $(Q)$(MAKE) $(hdr-inst)=include/uapi |
1072 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) | 1072 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) |
1073 | 1073 | ||
1074 | PHONY += headers_check_all | 1074 | PHONY += headers_check_all |
1075 | headers_check_all: headers_install_all | 1075 | headers_check_all: headers_install_all |
1076 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check | 1076 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check |
1077 | 1077 | ||
1078 | PHONY += headers_check | 1078 | PHONY += headers_check |
1079 | headers_check: headers_install | 1079 | headers_check: headers_install |
1080 | $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1 | 1080 | $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1 |
1081 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1 | 1081 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1 |
1082 | 1082 | ||
1083 | # --------------------------------------------------------------------------- | 1083 | # --------------------------------------------------------------------------- |
1084 | # Kernel selftest | 1084 | # Kernel selftest |
1085 | 1085 | ||
1086 | PHONY += kselftest | 1086 | PHONY += kselftest |
1087 | kselftest: | 1087 | kselftest: |
1088 | $(Q)$(MAKE) -C tools/testing/selftests run_tests | 1088 | $(Q)$(MAKE) -C tools/testing/selftests run_tests |
1089 | 1089 | ||
1090 | # --------------------------------------------------------------------------- | 1090 | # --------------------------------------------------------------------------- |
1091 | # Modules | 1091 | # Modules |
1092 | 1092 | ||
1093 | ifdef CONFIG_MODULES | 1093 | ifdef CONFIG_MODULES |
1094 | 1094 | ||
1095 | # By default, build modules as well | 1095 | # By default, build modules as well |
1096 | 1096 | ||
1097 | all: modules | 1097 | all: modules |
1098 | 1098 | ||
1099 | # Build modules | 1099 | # Build modules |
1100 | # | 1100 | # |
1101 | # A module can be listed more than once in obj-m resulting in | 1101 | # A module can be listed more than once in obj-m resulting in |
1102 | # duplicate lines in modules.order files. Those are removed | 1102 | # duplicate lines in modules.order files. Those are removed |
1103 | # using awk while concatenating to the final file. | 1103 | # using awk while concatenating to the final file. |
1104 | 1104 | ||
1105 | PHONY += modules | 1105 | PHONY += modules |
1106 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin | 1106 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin |
1107 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order | 1107 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
1108 | @$(kecho) ' Building modules, stage 2.'; | 1108 | @$(kecho) ' Building modules, stage 2.'; |
1109 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1109 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1110 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild | 1110 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
1111 | 1111 | ||
1112 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) | 1112 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) |
1113 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin | 1113 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin |
1114 | 1114 | ||
1115 | %/modules.builtin: include/config/auto.conf | 1115 | %/modules.builtin: include/config/auto.conf |
1116 | $(Q)$(MAKE) $(modbuiltin)=$* | 1116 | $(Q)$(MAKE) $(modbuiltin)=$* |
1117 | 1117 | ||
1118 | 1118 | ||
1119 | # Target to prepare building external modules | 1119 | # Target to prepare building external modules |
1120 | PHONY += modules_prepare | 1120 | PHONY += modules_prepare |
1121 | modules_prepare: prepare scripts | 1121 | modules_prepare: prepare scripts |
1122 | 1122 | ||
1123 | # Target to install modules | 1123 | # Target to install modules |
1124 | PHONY += modules_install | 1124 | PHONY += modules_install |
1125 | modules_install: _modinst_ _modinst_post | 1125 | modules_install: _modinst_ _modinst_post |
1126 | 1126 | ||
1127 | PHONY += _modinst_ | 1127 | PHONY += _modinst_ |
1128 | _modinst_: | 1128 | _modinst_: |
1129 | @rm -rf $(MODLIB)/kernel | 1129 | @rm -rf $(MODLIB)/kernel |
1130 | @rm -f $(MODLIB)/source | 1130 | @rm -f $(MODLIB)/source |
1131 | @mkdir -p $(MODLIB)/kernel | 1131 | @mkdir -p $(MODLIB)/kernel |
1132 | @ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source | 1132 | @ln -s `cd $(srctree) && /bin/pwd` $(MODLIB)/source |
1133 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ | 1133 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ |
1134 | rm -f $(MODLIB)/build ; \ | 1134 | rm -f $(MODLIB)/build ; \ |
1135 | ln -s $(CURDIR) $(MODLIB)/build ; \ | 1135 | ln -s $(CURDIR) $(MODLIB)/build ; \ |
1136 | fi | 1136 | fi |
1137 | @cp -f $(objtree)/modules.order $(MODLIB)/ | 1137 | @cp -f $(objtree)/modules.order $(MODLIB)/ |
1138 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ | 1138 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ |
1139 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1139 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1140 | 1140 | ||
1141 | # This depmod is only for convenience to give the initial | 1141 | # This depmod is only for convenience to give the initial |
1142 | # boot a modules.dep even before / is mounted read-write. However the | 1142 | # boot a modules.dep even before / is mounted read-write. However the |
1143 | # boot script depmod is the master version. | 1143 | # boot script depmod is the master version. |
1144 | PHONY += _modinst_post | 1144 | PHONY += _modinst_post |
1145 | _modinst_post: _modinst_ | 1145 | _modinst_post: _modinst_ |
1146 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst | 1146 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
1147 | $(call cmd,depmod) | 1147 | $(call cmd,depmod) |
1148 | 1148 | ||
1149 | ifeq ($(CONFIG_MODULE_SIG), y) | 1149 | ifeq ($(CONFIG_MODULE_SIG), y) |
1150 | PHONY += modules_sign | 1150 | PHONY += modules_sign |
1151 | modules_sign: | 1151 | modules_sign: |
1152 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign | 1152 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign |
1153 | endif | 1153 | endif |
1154 | 1154 | ||
1155 | else # CONFIG_MODULES | 1155 | else # CONFIG_MODULES |
1156 | 1156 | ||
1157 | # Modules not configured | 1157 | # Modules not configured |
1158 | # --------------------------------------------------------------------------- | 1158 | # --------------------------------------------------------------------------- |
1159 | 1159 | ||
1160 | modules modules_install: FORCE | 1160 | modules modules_install: FORCE |
1161 | @echo >&2 | 1161 | @echo >&2 |
1162 | @echo >&2 "The present kernel configuration has modules disabled." | 1162 | @echo >&2 "The present kernel configuration has modules disabled." |
1163 | @echo >&2 "Type 'make config' and enable loadable module support." | 1163 | @echo >&2 "Type 'make config' and enable loadable module support." |
1164 | @echo >&2 "Then build a kernel with module support enabled." | 1164 | @echo >&2 "Then build a kernel with module support enabled." |
1165 | @echo >&2 | 1165 | @echo >&2 |
1166 | @exit 1 | 1166 | @exit 1 |
1167 | 1167 | ||
1168 | endif # CONFIG_MODULES | 1168 | endif # CONFIG_MODULES |
1169 | 1169 | ||
1170 | ### | 1170 | ### |
1171 | # Cleaning is done on three levels. | 1171 | # Cleaning is done on three levels. |
1172 | # make clean Delete most generated files | 1172 | # make clean Delete most generated files |
1173 | # Leave enough to build external modules | 1173 | # Leave enough to build external modules |
1174 | # make mrproper Delete the current configuration, and all generated files | 1174 | # make mrproper Delete the current configuration, and all generated files |
1175 | # make distclean Remove editor backup files, patch leftover files and the like | 1175 | # make distclean Remove editor backup files, patch leftover files and the like |
1176 | 1176 | ||
1177 | # Directories & files removed with 'make clean' | 1177 | # Directories & files removed with 'make clean' |
1178 | CLEAN_DIRS += $(MODVERDIR) | 1178 | CLEAN_DIRS += $(MODVERDIR) |
1179 | 1179 | ||
1180 | # Directories & files removed with 'make mrproper' | 1180 | # Directories & files removed with 'make mrproper' |
1181 | MRPROPER_DIRS += include/config usr/include include/generated \ | 1181 | MRPROPER_DIRS += include/config usr/include include/generated \ |
1182 | arch/*/include/generated .tmp_objdiff | 1182 | arch/*/include/generated .tmp_objdiff |
1183 | MRPROPER_FILES += .config .config.old .version .old_version \ | 1183 | MRPROPER_FILES += .config .config.old .version .old_version \ |
1184 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ | 1184 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ |
1185 | signing_key.priv signing_key.x509 x509.genkey \ | 1185 | signing_key.priv signing_key.x509 x509.genkey \ |
1186 | extra_certificates signing_key.x509.keyid \ | 1186 | extra_certificates signing_key.x509.keyid \ |
1187 | signing_key.x509.signer vmlinux-gdb.py | 1187 | signing_key.x509.signer vmlinux-gdb.py |
1188 | 1188 | ||
1189 | # clean - Delete most, but leave enough to build external modules | 1189 | # clean - Delete most, but leave enough to build external modules |
1190 | # | 1190 | # |
1191 | clean: rm-dirs := $(CLEAN_DIRS) | 1191 | clean: rm-dirs := $(CLEAN_DIRS) |
1192 | clean: rm-files := $(CLEAN_FILES) | 1192 | clean: rm-files := $(CLEAN_FILES) |
1193 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples) | 1193 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples) |
1194 | 1194 | ||
1195 | PHONY += $(clean-dirs) clean archclean vmlinuxclean | 1195 | PHONY += $(clean-dirs) clean archclean vmlinuxclean |
1196 | $(clean-dirs): | 1196 | $(clean-dirs): |
1197 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1197 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
1198 | 1198 | ||
1199 | vmlinuxclean: | 1199 | vmlinuxclean: |
1200 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean | 1200 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean |
1201 | 1201 | ||
1202 | clean: archclean vmlinuxclean | 1202 | clean: archclean vmlinuxclean |
1203 | 1203 | ||
1204 | # mrproper - Delete all generated files, including .config | 1204 | # mrproper - Delete all generated files, including .config |
1205 | # | 1205 | # |
1206 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) | 1206 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) |
1207 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) | 1207 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) |
1208 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) | 1208 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) |
1209 | 1209 | ||
1210 | PHONY += $(mrproper-dirs) mrproper archmrproper | 1210 | PHONY += $(mrproper-dirs) mrproper archmrproper |
1211 | $(mrproper-dirs): | 1211 | $(mrproper-dirs): |
1212 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) | 1212 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) |
1213 | 1213 | ||
1214 | mrproper: clean archmrproper $(mrproper-dirs) | 1214 | mrproper: clean archmrproper $(mrproper-dirs) |
1215 | $(call cmd,rmdirs) | 1215 | $(call cmd,rmdirs) |
1216 | $(call cmd,rmfiles) | 1216 | $(call cmd,rmfiles) |
1217 | 1217 | ||
1218 | # distclean | 1218 | # distclean |
1219 | # | 1219 | # |
1220 | PHONY += distclean | 1220 | PHONY += distclean |
1221 | 1221 | ||
1222 | distclean: mrproper | 1222 | distclean: mrproper |
1223 | @find $(srctree) $(RCS_FIND_IGNORE) \ | 1223 | @find $(srctree) $(RCS_FIND_IGNORE) \ |
1224 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ | 1224 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
1225 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ | 1225 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
1226 | -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \ | 1226 | -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \ |
1227 | -type f -print | xargs rm -f | 1227 | -type f -print | xargs rm -f |
1228 | 1228 | ||
1229 | 1229 | ||
1230 | # Packaging of the kernel to various formats | 1230 | # Packaging of the kernel to various formats |
1231 | # --------------------------------------------------------------------------- | 1231 | # --------------------------------------------------------------------------- |
1232 | # rpm target kept for backward compatibility | 1232 | # rpm target kept for backward compatibility |
1233 | package-dir := scripts/package | 1233 | package-dir := scripts/package |
1234 | 1234 | ||
1235 | %src-pkg: FORCE | 1235 | %src-pkg: FORCE |
1236 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1236 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1237 | %pkg: include/config/kernel.release FORCE | 1237 | %pkg: include/config/kernel.release FORCE |
1238 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1238 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1239 | rpm: include/config/kernel.release FORCE | 1239 | rpm: include/config/kernel.release FORCE |
1240 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1240 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1241 | 1241 | ||
1242 | 1242 | ||
1243 | # Brief documentation of the typical targets used | 1243 | # Brief documentation of the typical targets used |
1244 | # --------------------------------------------------------------------------- | 1244 | # --------------------------------------------------------------------------- |
1245 | 1245 | ||
1246 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) | 1246 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
1247 | boards := $(sort $(notdir $(boards))) | 1247 | boards := $(sort $(notdir $(boards))) |
1248 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) | 1248 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) |
1249 | board-dirs := $(sort $(notdir $(board-dirs:/=))) | 1249 | board-dirs := $(sort $(notdir $(board-dirs:/=))) |
1250 | 1250 | ||
1251 | help: | 1251 | help: |
1252 | @echo 'Cleaning targets:' | 1252 | @echo 'Cleaning targets:' |
1253 | @echo ' clean - Remove most generated files but keep the config and' | 1253 | @echo ' clean - Remove most generated files but keep the config and' |
1254 | @echo ' enough build support to build external modules' | 1254 | @echo ' enough build support to build external modules' |
1255 | @echo ' mrproper - Remove all generated files + config + various backup files' | 1255 | @echo ' mrproper - Remove all generated files + config + various backup files' |
1256 | @echo ' distclean - mrproper + remove editor backup and patch files' | 1256 | @echo ' distclean - mrproper + remove editor backup and patch files' |
1257 | @echo '' | 1257 | @echo '' |
1258 | @echo 'Configuration targets:' | 1258 | @echo 'Configuration targets:' |
1259 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help | 1259 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help |
1260 | @echo '' | 1260 | @echo '' |
1261 | @echo 'Other generic targets:' | 1261 | @echo 'Other generic targets:' |
1262 | @echo ' all - Build all targets marked with [*]' | 1262 | @echo ' all - Build all targets marked with [*]' |
1263 | @echo '* vmlinux - Build the bare kernel' | 1263 | @echo '* vmlinux - Build the bare kernel' |
1264 | @echo '* modules - Build all modules' | 1264 | @echo '* modules - Build all modules' |
1265 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' | 1265 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
1266 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' | 1266 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' |
1267 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' | 1267 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
1268 | @echo ' dir/ - Build all files in dir and below' | 1268 | @echo ' dir/ - Build all files in dir and below' |
1269 | @echo ' dir/file.[oisS] - Build specified target only' | 1269 | @echo ' dir/file.[oisS] - Build specified target only' |
1270 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' | 1270 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' |
1271 | @echo ' (requires a recent binutils and recent build (System.map))' | 1271 | @echo ' (requires a recent binutils and recent build (System.map))' |
1272 | @echo ' dir/file.ko - Build module including final link' | 1272 | @echo ' dir/file.ko - Build module including final link' |
1273 | @echo ' modules_prepare - Set up for building external modules' | 1273 | @echo ' modules_prepare - Set up for building external modules' |
1274 | @echo ' tags/TAGS - Generate tags file for editors' | 1274 | @echo ' tags/TAGS - Generate tags file for editors' |
1275 | @echo ' cscope - Generate cscope index' | 1275 | @echo ' cscope - Generate cscope index' |
1276 | @echo ' gtags - Generate GNU GLOBAL index' | 1276 | @echo ' gtags - Generate GNU GLOBAL index' |
1277 | @echo ' kernelrelease - Output the release version string (use with make -s)' | 1277 | @echo ' kernelrelease - Output the release version string (use with make -s)' |
1278 | @echo ' kernelversion - Output the version stored in Makefile (use with make -s)' | 1278 | @echo ' kernelversion - Output the version stored in Makefile (use with make -s)' |
1279 | @echo ' image_name - Output the image name (use with make -s)' | 1279 | @echo ' image_name - Output the image name (use with make -s)' |
1280 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ | 1280 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
1281 | echo ' (default: $(INSTALL_HDR_PATH))'; \ | 1281 | echo ' (default: $(INSTALL_HDR_PATH))'; \ |
1282 | echo '' | 1282 | echo '' |
1283 | @echo 'Static analysers' | 1283 | @echo 'Static analysers' |
1284 | @echo ' checkstack - Generate a list of stack hogs' | 1284 | @echo ' checkstack - Generate a list of stack hogs' |
1285 | @echo ' namespacecheck - Name space analysis on compiled kernel' | 1285 | @echo ' namespacecheck - Name space analysis on compiled kernel' |
1286 | @echo ' versioncheck - Sanity check on version.h usage' | 1286 | @echo ' versioncheck - Sanity check on version.h usage' |
1287 | @echo ' includecheck - Check for duplicate included header files' | 1287 | @echo ' includecheck - Check for duplicate included header files' |
1288 | @echo ' export_report - List the usages of all exported symbols' | 1288 | @echo ' export_report - List the usages of all exported symbols' |
1289 | @echo ' headers_check - Sanity check on exported headers' | 1289 | @echo ' headers_check - Sanity check on exported headers' |
1290 | @echo ' headerdep - Detect inclusion cycles in headers' | 1290 | @echo ' headerdep - Detect inclusion cycles in headers' |
1291 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help | 1291 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help |
1292 | @echo '' | 1292 | @echo '' |
1293 | @echo 'Kernel selftest' | 1293 | @echo 'Kernel selftest' |
1294 | @echo ' kselftest - Build and run kernel selftest (run as root)' | 1294 | @echo ' kselftest - Build and run kernel selftest (run as root)' |
1295 | @echo ' Build, install, and boot kernel before' | 1295 | @echo ' Build, install, and boot kernel before' |
1296 | @echo ' running kselftest on it' | 1296 | @echo ' running kselftest on it' |
1297 | @echo '' | 1297 | @echo '' |
1298 | @echo 'Kernel packaging:' | 1298 | @echo 'Kernel packaging:' |
1299 | @$(MAKE) $(build)=$(package-dir) help | 1299 | @$(MAKE) $(build)=$(package-dir) help |
1300 | @echo '' | 1300 | @echo '' |
1301 | @echo 'Documentation targets:' | 1301 | @echo 'Documentation targets:' |
1302 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp | 1302 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp |
1303 | @echo '' | 1303 | @echo '' |
1304 | @echo 'Architecture specific targets ($(SRCARCH)):' | 1304 | @echo 'Architecture specific targets ($(SRCARCH)):' |
1305 | @$(if $(archhelp),$(archhelp),\ | 1305 | @$(if $(archhelp),$(archhelp),\ |
1306 | echo ' No architecture specific help defined for $(SRCARCH)') | 1306 | echo ' No architecture specific help defined for $(SRCARCH)') |
1307 | @echo '' | 1307 | @echo '' |
1308 | @$(if $(boards), \ | 1308 | @$(if $(boards), \ |
1309 | $(foreach b, $(boards), \ | 1309 | $(foreach b, $(boards), \ |
1310 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ | 1310 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ |
1311 | echo '') | 1311 | echo '') |
1312 | @$(if $(board-dirs), \ | 1312 | @$(if $(board-dirs), \ |
1313 | $(foreach b, $(board-dirs), \ | 1313 | $(foreach b, $(board-dirs), \ |
1314 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ | 1314 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ |
1315 | printf " %-16s - Show all of the above\\n" help-boards; \ | 1315 | printf " %-16s - Show all of the above\\n" help-boards; \ |
1316 | echo '') | 1316 | echo '') |
1317 | 1317 | ||
1318 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' | 1318 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
1319 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' | 1319 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
1320 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' | 1320 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
1321 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' | 1321 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' |
1322 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' | 1322 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
1323 | @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' | 1323 | @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' |
1324 | @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' | 1324 | @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' |
1325 | @echo ' 1: warnings which may be relevant and do not occur too often' | 1325 | @echo ' 1: warnings which may be relevant and do not occur too often' |
1326 | @echo ' 2: warnings which occur quite often but may still be relevant' | 1326 | @echo ' 2: warnings which occur quite often but may still be relevant' |
1327 | @echo ' 3: more obscure warnings, can most likely be ignored' | 1327 | @echo ' 3: more obscure warnings, can most likely be ignored' |
1328 | @echo ' Multiple levels can be combined with W=12 or W=123' | 1328 | @echo ' Multiple levels can be combined with W=12 or W=123' |
1329 | @echo '' | 1329 | @echo '' |
1330 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' | 1330 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' |
1331 | @echo 'For further info see the ./README file' | 1331 | @echo 'For further info see the ./README file' |
1332 | 1332 | ||
1333 | 1333 | ||
1334 | help-board-dirs := $(addprefix help-,$(board-dirs)) | 1334 | help-board-dirs := $(addprefix help-,$(board-dirs)) |
1335 | 1335 | ||
1336 | help-boards: $(help-board-dirs) | 1336 | help-boards: $(help-board-dirs) |
1337 | 1337 | ||
1338 | boards-per-dir = $(sort $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))) | 1338 | boards-per-dir = $(sort $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))) |
1339 | 1339 | ||
1340 | $(help-board-dirs): help-%: | 1340 | $(help-board-dirs): help-%: |
1341 | @echo 'Architecture specific targets ($(SRCARCH) $*):' | 1341 | @echo 'Architecture specific targets ($(SRCARCH) $*):' |
1342 | @$(if $(boards-per-dir), \ | 1342 | @$(if $(boards-per-dir), \ |
1343 | $(foreach b, $(boards-per-dir), \ | 1343 | $(foreach b, $(boards-per-dir), \ |
1344 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ | 1344 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ |
1345 | echo '') | 1345 | echo '') |
1346 | 1346 | ||
1347 | 1347 | ||
1348 | # Documentation targets | 1348 | # Documentation targets |
1349 | # --------------------------------------------------------------------------- | 1349 | # --------------------------------------------------------------------------- |
1350 | %docs: scripts_basic FORCE | 1350 | %docs: scripts_basic FORCE |
1351 | $(Q)$(MAKE) $(build)=scripts build_docproc | 1351 | $(Q)$(MAKE) $(build)=scripts build_docproc |
1352 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ | 1352 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ |
1353 | 1353 | ||
1354 | else # KBUILD_EXTMOD | 1354 | else # KBUILD_EXTMOD |
1355 | 1355 | ||
1356 | ### | 1356 | ### |
1357 | # External module support. | 1357 | # External module support. |
1358 | # When building external modules the kernel used as basis is considered | 1358 | # When building external modules the kernel used as basis is considered |
1359 | # read-only, and no consistency checks are made and the make | 1359 | # read-only, and no consistency checks are made and the make |
1360 | # system is not used on the basis kernel. If updates are required | 1360 | # system is not used on the basis kernel. If updates are required |
1361 | # in the basis kernel ordinary make commands (without M=...) must | 1361 | # in the basis kernel ordinary make commands (without M=...) must |
1362 | # be used. | 1362 | # be used. |
1363 | # | 1363 | # |
1364 | # The following are the only valid targets when building external | 1364 | # The following are the only valid targets when building external |
1365 | # modules. | 1365 | # modules. |
1366 | # make M=dir clean Delete all automatically generated files | 1366 | # make M=dir clean Delete all automatically generated files |
1367 | # make M=dir modules Make all modules in specified dir | 1367 | # make M=dir modules Make all modules in specified dir |
1368 | # make M=dir Same as 'make M=dir modules' | 1368 | # make M=dir Same as 'make M=dir modules' |
1369 | # make M=dir modules_install | 1369 | # make M=dir modules_install |
1370 | # Install the modules built in the module directory | 1370 | # Install the modules built in the module directory |
1371 | # Assumes install directory is already created | 1371 | # Assumes install directory is already created |
1372 | 1372 | ||
1373 | # We are always building modules | 1373 | # We are always building modules |
1374 | KBUILD_MODULES := 1 | 1374 | KBUILD_MODULES := 1 |
1375 | PHONY += crmodverdir | 1375 | PHONY += crmodverdir |
1376 | crmodverdir: | 1376 | crmodverdir: |
1377 | $(cmd_crmodverdir) | 1377 | $(cmd_crmodverdir) |
1378 | 1378 | ||
1379 | PHONY += $(objtree)/Module.symvers | 1379 | PHONY += $(objtree)/Module.symvers |
1380 | $(objtree)/Module.symvers: | 1380 | $(objtree)/Module.symvers: |
1381 | @test -e $(objtree)/Module.symvers || ( \ | 1381 | @test -e $(objtree)/Module.symvers || ( \ |
1382 | echo; \ | 1382 | echo; \ |
1383 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ | 1383 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ |
1384 | echo " is missing; modules will have no dependencies and modversions."; \ | 1384 | echo " is missing; modules will have no dependencies and modversions."; \ |
1385 | echo ) | 1385 | echo ) |
1386 | 1386 | ||
1387 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) | 1387 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) |
1388 | PHONY += $(module-dirs) modules | 1388 | PHONY += $(module-dirs) modules |
1389 | $(module-dirs): crmodverdir $(objtree)/Module.symvers | 1389 | $(module-dirs): crmodverdir $(objtree)/Module.symvers |
1390 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) | 1390 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) |
1391 | 1391 | ||
1392 | modules: $(module-dirs) | 1392 | modules: $(module-dirs) |
1393 | @$(kecho) ' Building modules, stage 2.'; | 1393 | @$(kecho) ' Building modules, stage 2.'; |
1394 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1394 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1395 | 1395 | ||
1396 | PHONY += modules_install | 1396 | PHONY += modules_install |
1397 | modules_install: _emodinst_ _emodinst_post | 1397 | modules_install: _emodinst_ _emodinst_post |
1398 | 1398 | ||
1399 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) | 1399 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) |
1400 | PHONY += _emodinst_ | 1400 | PHONY += _emodinst_ |
1401 | _emodinst_: | 1401 | _emodinst_: |
1402 | $(Q)mkdir -p $(MODLIB)/$(install-dir) | 1402 | $(Q)mkdir -p $(MODLIB)/$(install-dir) |
1403 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1403 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1404 | 1404 | ||
1405 | PHONY += _emodinst_post | 1405 | PHONY += _emodinst_post |
1406 | _emodinst_post: _emodinst_ | 1406 | _emodinst_post: _emodinst_ |
1407 | $(call cmd,depmod) | 1407 | $(call cmd,depmod) |
1408 | 1408 | ||
1409 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) | 1409 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
1410 | 1410 | ||
1411 | PHONY += $(clean-dirs) clean | 1411 | PHONY += $(clean-dirs) clean |
1412 | $(clean-dirs): | 1412 | $(clean-dirs): |
1413 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1413 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
1414 | 1414 | ||
1415 | clean: rm-dirs := $(MODVERDIR) | 1415 | clean: rm-dirs := $(MODVERDIR) |
1416 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers | 1416 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers |
1417 | 1417 | ||
1418 | help: | 1418 | help: |
1419 | @echo ' Building external modules.' | 1419 | @echo ' Building external modules.' |
1420 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' | 1420 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' |
1421 | @echo '' | 1421 | @echo '' |
1422 | @echo ' modules - default target, build the module(s)' | 1422 | @echo ' modules - default target, build the module(s)' |
1423 | @echo ' modules_install - install the module' | 1423 | @echo ' modules_install - install the module' |
1424 | @echo ' clean - remove generated files in module directory only' | 1424 | @echo ' clean - remove generated files in module directory only' |
1425 | @echo '' | 1425 | @echo '' |
1426 | 1426 | ||
1427 | # Dummies... | 1427 | # Dummies... |
1428 | PHONY += prepare scripts | 1428 | PHONY += prepare scripts |
1429 | prepare: ; | 1429 | prepare: ; |
1430 | scripts: ; | 1430 | scripts: ; |
1431 | endif # KBUILD_EXTMOD | 1431 | endif # KBUILD_EXTMOD |
1432 | 1432 | ||
1433 | clean: $(clean-dirs) | 1433 | clean: $(clean-dirs) |
1434 | $(call cmd,rmdirs) | 1434 | $(call cmd,rmdirs) |
1435 | $(call cmd,rmfiles) | 1435 | $(call cmd,rmfiles) |
1436 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ | 1436 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ |
1437 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1437 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
1438 | -o -name '*.ko.*' \ | 1438 | -o -name '*.ko.*' \ |
1439 | -o -name '*.dwo' \ | 1439 | -o -name '*.dwo' \ |
1440 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ | 1440 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
1441 | -o -name '*.symtypes' -o -name 'modules.order' \ | 1441 | -o -name '*.symtypes' -o -name 'modules.order' \ |
1442 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ | 1442 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ |
1443 | -o -name '*.gcno' \) -type f -print | xargs rm -f | 1443 | -o -name '*.gcno' \) -type f -print | xargs rm -f |
1444 | 1444 | ||
1445 | # Generate tags for editors | 1445 | # Generate tags for editors |
1446 | # --------------------------------------------------------------------------- | 1446 | # --------------------------------------------------------------------------- |
1447 | quiet_cmd_tags = GEN $@ | 1447 | quiet_cmd_tags = GEN $@ |
1448 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ | 1448 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ |
1449 | 1449 | ||
1450 | tags TAGS cscope gtags: FORCE | 1450 | tags TAGS cscope gtags: FORCE |
1451 | $(call cmd,tags) | 1451 | $(call cmd,tags) |
1452 | 1452 | ||
1453 | # Scripts to check various things for consistency | 1453 | # Scripts to check various things for consistency |
1454 | # --------------------------------------------------------------------------- | 1454 | # --------------------------------------------------------------------------- |
1455 | 1455 | ||
1456 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report | 1456 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report |
1457 | 1457 | ||
1458 | includecheck: | 1458 | includecheck: |
1459 | find $(srctree)/* $(RCS_FIND_IGNORE) \ | 1459 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
1460 | -name '*.[hcS]' -type f -print | sort \ | 1460 | -name '*.[hcS]' -type f -print | sort \ |
1461 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl | 1461 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
1462 | 1462 | ||
1463 | versioncheck: | 1463 | versioncheck: |
1464 | find $(srctree)/* $(RCS_FIND_IGNORE) \ | 1464 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
1465 | -name '*.[hcS]' -type f -print | sort \ | 1465 | -name '*.[hcS]' -type f -print | sort \ |
1466 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl | 1466 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
1467 | 1467 | ||
1468 | coccicheck: | 1468 | coccicheck: |
1469 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ | 1469 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ |
1470 | 1470 | ||
1471 | namespacecheck: | 1471 | namespacecheck: |
1472 | $(PERL) $(srctree)/scripts/namespace.pl | 1472 | $(PERL) $(srctree)/scripts/namespace.pl |
1473 | 1473 | ||
1474 | export_report: | 1474 | export_report: |
1475 | $(PERL) $(srctree)/scripts/export_report.pl | 1475 | $(PERL) $(srctree)/scripts/export_report.pl |
1476 | 1476 | ||
1477 | endif #ifeq ($(config-targets),1) | 1477 | endif #ifeq ($(config-targets),1) |
1478 | endif #ifeq ($(mixed-targets),1) | 1478 | endif #ifeq ($(mixed-targets),1) |
1479 | 1479 | ||
1480 | PHONY += checkstack kernelrelease kernelversion image_name | 1480 | PHONY += checkstack kernelrelease kernelversion image_name |
1481 | 1481 | ||
1482 | # UML needs a little special treatment here. It wants to use the host | 1482 | # UML needs a little special treatment here. It wants to use the host |
1483 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone | 1483 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone |
1484 | # else wants $(ARCH), including people doing cross-builds, which means | 1484 | # else wants $(ARCH), including people doing cross-builds, which means |
1485 | # that $(SUBARCH) doesn't work here. | 1485 | # that $(SUBARCH) doesn't work here. |
1486 | ifeq ($(ARCH), um) | 1486 | ifeq ($(ARCH), um) |
1487 | CHECKSTACK_ARCH := $(SUBARCH) | 1487 | CHECKSTACK_ARCH := $(SUBARCH) |
1488 | else | 1488 | else |
1489 | CHECKSTACK_ARCH := $(ARCH) | 1489 | CHECKSTACK_ARCH := $(ARCH) |
1490 | endif | 1490 | endif |
1491 | checkstack: | 1491 | checkstack: |
1492 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ | 1492 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
1493 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) | 1493 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
1494 | 1494 | ||
1495 | kernelrelease: | 1495 | kernelrelease: |
1496 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" | 1496 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
1497 | 1497 | ||
1498 | kernelversion: | 1498 | kernelversion: |
1499 | @echo $(KERNELVERSION) | 1499 | @echo $(KERNELVERSION) |
1500 | 1500 | ||
1501 | image_name: | 1501 | image_name: |
1502 | @echo $(KBUILD_IMAGE) | 1502 | @echo $(KBUILD_IMAGE) |
1503 | 1503 | ||
1504 | # Clear a bunch of variables before executing the submake | 1504 | # Clear a bunch of variables before executing the submake |
1505 | tools/: FORCE | 1505 | tools/: FORCE |
1506 | $(Q)mkdir -p $(objtree)/tools | 1506 | $(Q)mkdir -p $(objtree)/tools |
1507 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ | 1507 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ |
1508 | 1508 | ||
1509 | tools/%: FORCE | 1509 | tools/%: FORCE |
1510 | $(Q)mkdir -p $(objtree)/tools | 1510 | $(Q)mkdir -p $(objtree)/tools |
1511 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $* | 1511 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $* |
1512 | 1512 | ||
1513 | # Single targets | 1513 | # Single targets |
1514 | # --------------------------------------------------------------------------- | 1514 | # --------------------------------------------------------------------------- |
1515 | # Single targets are compatible with: | 1515 | # Single targets are compatible with: |
1516 | # - build with mixed source and output | 1516 | # - build with mixed source and output |
1517 | # - build with separate output dir 'make O=...' | 1517 | # - build with separate output dir 'make O=...' |
1518 | # - external modules | 1518 | # - external modules |
1519 | # | 1519 | # |
1520 | # target-dir => where to store outputfile | 1520 | # target-dir => where to store outputfile |
1521 | # build-dir => directory in kernel source tree to use | 1521 | # build-dir => directory in kernel source tree to use |
1522 | 1522 | ||
1523 | ifeq ($(KBUILD_EXTMOD),) | 1523 | ifeq ($(KBUILD_EXTMOD),) |
1524 | build-dir = $(patsubst %/,%,$(dir $@)) | 1524 | build-dir = $(patsubst %/,%,$(dir $@)) |
1525 | target-dir = $(dir $@) | 1525 | target-dir = $(dir $@) |
1526 | else | 1526 | else |
1527 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) | 1527 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) |
1528 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) | 1528 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) |
1529 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) | 1529 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) |
1530 | endif | 1530 | endif |
1531 | 1531 | ||
1532 | %.s: %.c prepare scripts FORCE | 1532 | %.s: %.c prepare scripts FORCE |
1533 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1533 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1534 | %.i: %.c prepare scripts FORCE | 1534 | %.i: %.c prepare scripts FORCE |
1535 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1535 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1536 | %.o: %.c prepare scripts FORCE | 1536 | %.o: %.c prepare scripts FORCE |
1537 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1537 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1538 | %.lst: %.c prepare scripts FORCE | 1538 | %.lst: %.c prepare scripts FORCE |
1539 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1539 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1540 | %.s: %.S prepare scripts FORCE | 1540 | %.s: %.S prepare scripts FORCE |
1541 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1541 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1542 | %.o: %.S prepare scripts FORCE | 1542 | %.o: %.S prepare scripts FORCE |
1543 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1543 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1544 | %.symtypes: %.c prepare scripts FORCE | 1544 | %.symtypes: %.c prepare scripts FORCE |
1545 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1545 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1546 | 1546 | ||
1547 | # Modules | 1547 | # Modules |
1548 | /: prepare scripts FORCE | 1548 | /: prepare scripts FORCE |
1549 | $(cmd_crmodverdir) | 1549 | $(cmd_crmodverdir) |
1550 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1550 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1551 | $(build)=$(build-dir) | 1551 | $(build)=$(build-dir) |
1552 | # Make sure the latest headers are built for Documentation | 1552 | # Make sure the latest headers are built for Documentation |
1553 | Documentation/: headers_install | 1553 | Documentation/: headers_install |
1554 | %/: prepare scripts FORCE | 1554 | %/: prepare scripts FORCE |
1555 | $(cmd_crmodverdir) | 1555 | $(cmd_crmodverdir) |
1556 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1556 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1557 | $(build)=$(build-dir) | 1557 | $(build)=$(build-dir) |
1558 | %.ko: prepare scripts FORCE | 1558 | %.ko: prepare scripts FORCE |
1559 | $(cmd_crmodverdir) | 1559 | $(cmd_crmodverdir) |
1560 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1560 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1561 | $(build)=$(build-dir) $(@:.ko=.o) | 1561 | $(build)=$(build-dir) $(@:.ko=.o) |
1562 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1562 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1563 | 1563 | ||
1564 | # FIXME Should go into a make.lib or something | 1564 | # FIXME Should go into a make.lib or something |
1565 | # =========================================================================== | 1565 | # =========================================================================== |
1566 | 1566 | ||
1567 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) | 1567 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) |
1568 | cmd_rmdirs = rm -rf $(rm-dirs) | 1568 | cmd_rmdirs = rm -rf $(rm-dirs) |
1569 | 1569 | ||
1570 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) | 1570 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) |
1571 | cmd_rmfiles = rm -f $(rm-files) | 1571 | cmd_rmfiles = rm -f $(rm-files) |
1572 | 1572 | ||
1573 | # Run depmod only if we have System.map and depmod is executable | 1573 | # Run depmod only if we have System.map and depmod is executable |
1574 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) | 1574 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) |
1575 | cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ | 1575 | cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ |
1576 | $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))" | 1576 | $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))" |
1577 | 1577 | ||
1578 | # Create temporary dir for module support files | 1578 | # Create temporary dir for module support files |
1579 | # clean it up only when building all modules | 1579 | # clean it up only when building all modules |
1580 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ | 1580 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ |
1581 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) | 1581 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
1582 | 1582 | ||
1583 | # read all saved command lines | 1583 | # read all saved command lines |
1584 | 1584 | ||
1585 | targets := $(wildcard $(sort $(targets))) | 1585 | targets := $(wildcard $(sort $(targets))) |
1586 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | 1586 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) |
1587 | 1587 | ||
1588 | ifneq ($(cmd_files),) | 1588 | ifneq ($(cmd_files),) |
1589 | $(cmd_files): ; # Do not try to update included dependency files | 1589 | $(cmd_files): ; # Do not try to update included dependency files |
1590 | include $(cmd_files) | 1590 | include $(cmd_files) |
1591 | endif | 1591 | endif |
1592 | 1592 | ||
1593 | endif # skip-makefile | 1593 | endif # skip-makefile |
1594 | 1594 | ||
1595 | PHONY += FORCE | 1595 | PHONY += FORCE |
1596 | FORCE: | 1596 | FORCE: |
1597 | 1597 | ||
1598 | # Declare the contents of the .PHONY variable as phony. We keep that | 1598 | # Declare the contents of the .PHONY variable as phony. We keep that |
1599 | # information in a variable so we can use it in if_changed and friends. | 1599 | # information in a variable so we can use it in if_changed and friends. |
1600 | .PHONY: $(PHONY) | 1600 | .PHONY: $(PHONY) |
1601 | 1601 |