Commit 2288328ce9700865245677f35330f3a77dfc6eda
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066c6807f7
Exists in
ti-lsk-linux-4.1.y
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all: LLVMLinux: Change DWARF flag to support gcc and clang
Both gcc (well, actually gnu as) and clang support the "-Wa,-gdwarf-2" option (though clang does not support "-Wa,--gdwarf-2"). Since these flags are equivalent in meaning, this patch uses the one which is better supported across compilers. Signed-off-by: Behan Webster <behanw@converseincode.com>
Showing 1 changed file with 1 additions and 1 deletions Inline Diff
Makefile
1 | VERSION = 3 | 1 | VERSION = 3 |
2 | PATCHLEVEL = 15 | 2 | PATCHLEVEL = 15 |
3 | SUBLEVEL = 0 | 3 | SUBLEVEL = 0 |
4 | EXTRAVERSION = -rc8 | 4 | EXTRAVERSION = -rc8 |
5 | NAME = Shuffling Zombie Juror | 5 | NAME = Shuffling Zombie Juror |
6 | 6 | ||
7 | # *DOCUMENTATION* | 7 | # *DOCUMENTATION* |
8 | # To see a list of typical targets execute "make help" | 8 | # To see a list of typical targets execute "make help" |
9 | # More info can be located in ./README | 9 | # More info can be located in ./README |
10 | # Comments in this file are targeted only to the developer, do not | 10 | # Comments in this file are targeted only to the developer, do not |
11 | # expect to learn how to build the kernel reading this file. | 11 | # expect to learn how to build the kernel reading this file. |
12 | 12 | ||
13 | # Do not: | 13 | # Do not: |
14 | # o use make's built-in rules and variables | 14 | # o use make's built-in rules and variables |
15 | # (this increases performance and avoids hard-to-debug behaviour); | 15 | # (this increases performance and avoids hard-to-debug behaviour); |
16 | # o print "Entering directory ..."; | 16 | # o print "Entering directory ..."; |
17 | MAKEFLAGS += -rR --no-print-directory | 17 | MAKEFLAGS += -rR --no-print-directory |
18 | 18 | ||
19 | # Avoid funny character set dependencies | 19 | # Avoid funny character set dependencies |
20 | unexport LC_ALL | 20 | unexport LC_ALL |
21 | LC_COLLATE=C | 21 | LC_COLLATE=C |
22 | LC_NUMERIC=C | 22 | LC_NUMERIC=C |
23 | export LC_COLLATE LC_NUMERIC | 23 | export LC_COLLATE LC_NUMERIC |
24 | 24 | ||
25 | # Avoid interference with shell env settings | 25 | # Avoid interference with shell env settings |
26 | unexport GREP_OPTIONS | 26 | unexport GREP_OPTIONS |
27 | 27 | ||
28 | # We are using a recursive build, so we need to do a little thinking | 28 | # We are using a recursive build, so we need to do a little thinking |
29 | # to get the ordering right. | 29 | # to get the ordering right. |
30 | # | 30 | # |
31 | # Most importantly: sub-Makefiles should only ever modify files in | 31 | # Most importantly: sub-Makefiles should only ever modify files in |
32 | # their own directory. If in some directory we have a dependency on | 32 | # their own directory. If in some directory we have a dependency on |
33 | # a file in another dir (which doesn't happen often, but it's often | 33 | # a file in another dir (which doesn't happen often, but it's often |
34 | # unavoidable when linking the built-in.o targets which finally | 34 | # unavoidable when linking the built-in.o targets which finally |
35 | # turn into vmlinux), we will call a sub make in that other dir, and | 35 | # turn into vmlinux), we will call a sub make in that other dir, and |
36 | # after that we are sure that everything which is in that other dir | 36 | # after that we are sure that everything which is in that other dir |
37 | # is now up to date. | 37 | # is now up to date. |
38 | # | 38 | # |
39 | # The only cases where we need to modify files which have global | 39 | # The only cases where we need to modify files which have global |
40 | # effects are thus separated out and done before the recursive | 40 | # effects are thus separated out and done before the recursive |
41 | # descending is started. They are now explicitly listed as the | 41 | # descending is started. They are now explicitly listed as the |
42 | # prepare rule. | 42 | # prepare rule. |
43 | 43 | ||
44 | # To put more focus on warnings, be less verbose as default | 44 | # To put more focus on warnings, be less verbose as default |
45 | # Use 'make V=1' to see the full commands | 45 | # Use 'make V=1' to see the full commands |
46 | 46 | ||
47 | ifeq ("$(origin V)", "command line") | 47 | ifeq ("$(origin V)", "command line") |
48 | KBUILD_VERBOSE = $(V) | 48 | KBUILD_VERBOSE = $(V) |
49 | endif | 49 | endif |
50 | ifndef KBUILD_VERBOSE | 50 | ifndef KBUILD_VERBOSE |
51 | KBUILD_VERBOSE = 0 | 51 | KBUILD_VERBOSE = 0 |
52 | endif | 52 | endif |
53 | 53 | ||
54 | # Call a source code checker (by default, "sparse") as part of the | 54 | # Call a source code checker (by default, "sparse") as part of the |
55 | # C compilation. | 55 | # C compilation. |
56 | # | 56 | # |
57 | # Use 'make C=1' to enable checking of only re-compiled files. | 57 | # Use 'make C=1' to enable checking of only re-compiled files. |
58 | # Use 'make C=2' to enable checking of *all* source files, regardless | 58 | # Use 'make C=2' to enable checking of *all* source files, regardless |
59 | # of whether they are re-compiled or not. | 59 | # of whether they are re-compiled or not. |
60 | # | 60 | # |
61 | # See the file "Documentation/sparse.txt" for more details, including | 61 | # See the file "Documentation/sparse.txt" for more details, including |
62 | # where to get the "sparse" utility. | 62 | # where to get the "sparse" utility. |
63 | 63 | ||
64 | ifeq ("$(origin C)", "command line") | 64 | ifeq ("$(origin C)", "command line") |
65 | KBUILD_CHECKSRC = $(C) | 65 | KBUILD_CHECKSRC = $(C) |
66 | endif | 66 | endif |
67 | ifndef KBUILD_CHECKSRC | 67 | ifndef KBUILD_CHECKSRC |
68 | KBUILD_CHECKSRC = 0 | 68 | KBUILD_CHECKSRC = 0 |
69 | endif | 69 | endif |
70 | 70 | ||
71 | # Use make M=dir to specify directory of external module to build | 71 | # Use make M=dir to specify directory of external module to build |
72 | # Old syntax make ... SUBDIRS=$PWD is still supported | 72 | # Old syntax make ... SUBDIRS=$PWD is still supported |
73 | # Setting the environment variable KBUILD_EXTMOD take precedence | 73 | # Setting the environment variable KBUILD_EXTMOD take precedence |
74 | ifdef SUBDIRS | 74 | ifdef SUBDIRS |
75 | KBUILD_EXTMOD ?= $(SUBDIRS) | 75 | KBUILD_EXTMOD ?= $(SUBDIRS) |
76 | endif | 76 | endif |
77 | 77 | ||
78 | ifeq ("$(origin M)", "command line") | 78 | ifeq ("$(origin M)", "command line") |
79 | KBUILD_EXTMOD := $(M) | 79 | KBUILD_EXTMOD := $(M) |
80 | endif | 80 | endif |
81 | 81 | ||
82 | # kbuild supports saving output files in a separate directory. | 82 | # kbuild supports saving output files in a separate directory. |
83 | # To locate output files in a separate directory two syntaxes are supported. | 83 | # To locate output files in a separate directory two syntaxes are supported. |
84 | # In both cases the working directory must be the root of the kernel src. | 84 | # In both cases the working directory must be the root of the kernel src. |
85 | # 1) O= | 85 | # 1) O= |
86 | # Use "make O=dir/to/store/output/files/" | 86 | # Use "make O=dir/to/store/output/files/" |
87 | # | 87 | # |
88 | # 2) Set KBUILD_OUTPUT | 88 | # 2) Set KBUILD_OUTPUT |
89 | # Set the environment variable KBUILD_OUTPUT to point to the directory | 89 | # Set the environment variable KBUILD_OUTPUT to point to the directory |
90 | # where the output files shall be placed. | 90 | # where the output files shall be placed. |
91 | # export KBUILD_OUTPUT=dir/to/store/output/files/ | 91 | # export KBUILD_OUTPUT=dir/to/store/output/files/ |
92 | # make | 92 | # make |
93 | # | 93 | # |
94 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment | 94 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment |
95 | # variable. | 95 | # variable. |
96 | 96 | ||
97 | 97 | ||
98 | # KBUILD_SRC is set on invocation of make in OBJ directory | 98 | # KBUILD_SRC is set on invocation of make in OBJ directory |
99 | # KBUILD_SRC is not intended to be used by the regular user (for now) | 99 | # KBUILD_SRC is not intended to be used by the regular user (for now) |
100 | ifeq ($(KBUILD_SRC),) | 100 | ifeq ($(KBUILD_SRC),) |
101 | 101 | ||
102 | # OK, Make called in directory where kernel src resides | 102 | # OK, Make called in directory where kernel src resides |
103 | # Do we want to locate output files in a separate directory? | 103 | # Do we want to locate output files in a separate directory? |
104 | ifeq ("$(origin O)", "command line") | 104 | ifeq ("$(origin O)", "command line") |
105 | KBUILD_OUTPUT := $(O) | 105 | KBUILD_OUTPUT := $(O) |
106 | endif | 106 | endif |
107 | 107 | ||
108 | ifeq ("$(origin W)", "command line") | 108 | ifeq ("$(origin W)", "command line") |
109 | export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) | 109 | export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) |
110 | endif | 110 | endif |
111 | 111 | ||
112 | # That's our default target when none is given on the command line | 112 | # That's our default target when none is given on the command line |
113 | PHONY := _all | 113 | PHONY := _all |
114 | _all: | 114 | _all: |
115 | 115 | ||
116 | # Cancel implicit rules on top Makefile | 116 | # Cancel implicit rules on top Makefile |
117 | $(CURDIR)/Makefile Makefile: ; | 117 | $(CURDIR)/Makefile Makefile: ; |
118 | 118 | ||
119 | ifneq ($(KBUILD_OUTPUT),) | 119 | ifneq ($(KBUILD_OUTPUT),) |
120 | # Invoke a second make in the output directory, passing relevant variables | 120 | # Invoke a second make in the output directory, passing relevant variables |
121 | # check that the output directory actually exists | 121 | # check that the output directory actually exists |
122 | saved-output := $(KBUILD_OUTPUT) | 122 | saved-output := $(KBUILD_OUTPUT) |
123 | KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ | 123 | KBUILD_OUTPUT := $(shell mkdir -p $(KBUILD_OUTPUT) && cd $(KBUILD_OUTPUT) \ |
124 | && /bin/pwd) | 124 | && /bin/pwd) |
125 | $(if $(KBUILD_OUTPUT),, \ | 125 | $(if $(KBUILD_OUTPUT),, \ |
126 | $(error failed to create output directory "$(saved-output)")) | 126 | $(error failed to create output directory "$(saved-output)")) |
127 | 127 | ||
128 | PHONY += $(MAKECMDGOALS) sub-make | 128 | PHONY += $(MAKECMDGOALS) sub-make |
129 | 129 | ||
130 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make | 130 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make |
131 | @: | 131 | @: |
132 | 132 | ||
133 | sub-make: FORCE | 133 | sub-make: FORCE |
134 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ | 134 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ |
135 | KBUILD_SRC=$(CURDIR) \ | 135 | KBUILD_SRC=$(CURDIR) \ |
136 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ | 136 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ |
137 | $(filter-out _all sub-make,$(MAKECMDGOALS)) | 137 | $(filter-out _all sub-make,$(MAKECMDGOALS)) |
138 | 138 | ||
139 | # Leave processing to above invocation of make | 139 | # Leave processing to above invocation of make |
140 | skip-makefile := 1 | 140 | skip-makefile := 1 |
141 | endif # ifneq ($(KBUILD_OUTPUT),) | 141 | endif # ifneq ($(KBUILD_OUTPUT),) |
142 | endif # ifeq ($(KBUILD_SRC),) | 142 | endif # ifeq ($(KBUILD_SRC),) |
143 | 143 | ||
144 | # We process the rest of the Makefile if this is the final invocation of make | 144 | # We process the rest of the Makefile if this is the final invocation of make |
145 | ifeq ($(skip-makefile),) | 145 | ifeq ($(skip-makefile),) |
146 | 146 | ||
147 | # If building an external module we do not care about the all: rule | 147 | # If building an external module we do not care about the all: rule |
148 | # but instead _all depend on modules | 148 | # but instead _all depend on modules |
149 | PHONY += all | 149 | PHONY += all |
150 | ifeq ($(KBUILD_EXTMOD),) | 150 | ifeq ($(KBUILD_EXTMOD),) |
151 | _all: all | 151 | _all: all |
152 | else | 152 | else |
153 | _all: modules | 153 | _all: modules |
154 | endif | 154 | endif |
155 | 155 | ||
156 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) | 156 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) |
157 | objtree := $(CURDIR) | 157 | objtree := $(CURDIR) |
158 | src := $(srctree) | 158 | src := $(srctree) |
159 | obj := $(objtree) | 159 | obj := $(objtree) |
160 | 160 | ||
161 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) | 161 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) |
162 | 162 | ||
163 | export srctree objtree VPATH | 163 | export srctree objtree VPATH |
164 | 164 | ||
165 | 165 | ||
166 | # SUBARCH tells the usermode build what the underlying arch is. That is set | 166 | # SUBARCH tells the usermode build what the underlying arch is. That is set |
167 | # first, and if a usermode build is happening, the "ARCH=um" on the command | 167 | # first, and if a usermode build is happening, the "ARCH=um" on the command |
168 | # line overrides the setting of ARCH below. If a native build is happening, | 168 | # line overrides the setting of ARCH below. If a native build is happening, |
169 | # then ARCH is assigned, getting whatever value it gets normally, and | 169 | # then ARCH is assigned, getting whatever value it gets normally, and |
170 | # SUBARCH is subsequently ignored. | 170 | # SUBARCH is subsequently ignored. |
171 | 171 | ||
172 | SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ | 172 | SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ |
173 | -e s/sun4u/sparc64/ \ | 173 | -e s/sun4u/sparc64/ \ |
174 | -e s/arm.*/arm/ -e s/sa110/arm/ \ | 174 | -e s/arm.*/arm/ -e s/sa110/arm/ \ |
175 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ | 175 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ |
176 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ | 176 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ |
177 | -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ ) | 177 | -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ ) |
178 | 178 | ||
179 | # Cross compiling and selecting different set of gcc/bin-utils | 179 | # Cross compiling and selecting different set of gcc/bin-utils |
180 | # --------------------------------------------------------------------------- | 180 | # --------------------------------------------------------------------------- |
181 | # | 181 | # |
182 | # When performing cross compilation for other architectures ARCH shall be set | 182 | # When performing cross compilation for other architectures ARCH shall be set |
183 | # to the target architecture. (See arch/* for the possibilities). | 183 | # to the target architecture. (See arch/* for the possibilities). |
184 | # ARCH can be set during invocation of make: | 184 | # ARCH can be set during invocation of make: |
185 | # make ARCH=ia64 | 185 | # make ARCH=ia64 |
186 | # Another way is to have ARCH set in the environment. | 186 | # Another way is to have ARCH set in the environment. |
187 | # The default ARCH is the host where make is executed. | 187 | # The default ARCH is the host where make is executed. |
188 | 188 | ||
189 | # CROSS_COMPILE specify the prefix used for all executables used | 189 | # CROSS_COMPILE specify the prefix used for all executables used |
190 | # during compilation. Only gcc and related bin-utils executables | 190 | # during compilation. Only gcc and related bin-utils executables |
191 | # are prefixed with $(CROSS_COMPILE). | 191 | # are prefixed with $(CROSS_COMPILE). |
192 | # CROSS_COMPILE can be set on the command line | 192 | # CROSS_COMPILE can be set on the command line |
193 | # make CROSS_COMPILE=ia64-linux- | 193 | # make CROSS_COMPILE=ia64-linux- |
194 | # Alternatively CROSS_COMPILE can be set in the environment. | 194 | # Alternatively CROSS_COMPILE can be set in the environment. |
195 | # A third alternative is to store a setting in .config so that plain | 195 | # A third alternative is to store a setting in .config so that plain |
196 | # "make" in the configured kernel build directory always uses that. | 196 | # "make" in the configured kernel build directory always uses that. |
197 | # Default value for CROSS_COMPILE is not to prefix executables | 197 | # Default value for CROSS_COMPILE is not to prefix executables |
198 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile | 198 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile |
199 | ARCH ?= $(SUBARCH) | 199 | ARCH ?= $(SUBARCH) |
200 | CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) | 200 | CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) |
201 | 201 | ||
202 | # Architecture as present in compile.h | 202 | # Architecture as present in compile.h |
203 | UTS_MACHINE := $(ARCH) | 203 | UTS_MACHINE := $(ARCH) |
204 | SRCARCH := $(ARCH) | 204 | SRCARCH := $(ARCH) |
205 | 205 | ||
206 | # Additional ARCH settings for x86 | 206 | # Additional ARCH settings for x86 |
207 | ifeq ($(ARCH),i386) | 207 | ifeq ($(ARCH),i386) |
208 | SRCARCH := x86 | 208 | SRCARCH := x86 |
209 | endif | 209 | endif |
210 | ifeq ($(ARCH),x86_64) | 210 | ifeq ($(ARCH),x86_64) |
211 | SRCARCH := x86 | 211 | SRCARCH := x86 |
212 | endif | 212 | endif |
213 | 213 | ||
214 | # Additional ARCH settings for sparc | 214 | # Additional ARCH settings for sparc |
215 | ifeq ($(ARCH),sparc32) | 215 | ifeq ($(ARCH),sparc32) |
216 | SRCARCH := sparc | 216 | SRCARCH := sparc |
217 | endif | 217 | endif |
218 | ifeq ($(ARCH),sparc64) | 218 | ifeq ($(ARCH),sparc64) |
219 | SRCARCH := sparc | 219 | SRCARCH := sparc |
220 | endif | 220 | endif |
221 | 221 | ||
222 | # Additional ARCH settings for sh | 222 | # Additional ARCH settings for sh |
223 | ifeq ($(ARCH),sh64) | 223 | ifeq ($(ARCH),sh64) |
224 | SRCARCH := sh | 224 | SRCARCH := sh |
225 | endif | 225 | endif |
226 | 226 | ||
227 | # Additional ARCH settings for tile | 227 | # Additional ARCH settings for tile |
228 | ifeq ($(ARCH),tilepro) | 228 | ifeq ($(ARCH),tilepro) |
229 | SRCARCH := tile | 229 | SRCARCH := tile |
230 | endif | 230 | endif |
231 | ifeq ($(ARCH),tilegx) | 231 | ifeq ($(ARCH),tilegx) |
232 | SRCARCH := tile | 232 | SRCARCH := tile |
233 | endif | 233 | endif |
234 | 234 | ||
235 | # Where to locate arch specific headers | 235 | # Where to locate arch specific headers |
236 | hdr-arch := $(SRCARCH) | 236 | hdr-arch := $(SRCARCH) |
237 | 237 | ||
238 | KCONFIG_CONFIG ?= .config | 238 | KCONFIG_CONFIG ?= .config |
239 | export KCONFIG_CONFIG | 239 | export KCONFIG_CONFIG |
240 | 240 | ||
241 | # SHELL used by kbuild | 241 | # SHELL used by kbuild |
242 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ | 242 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ |
243 | else if [ -x /bin/bash ]; then echo /bin/bash; \ | 243 | else if [ -x /bin/bash ]; then echo /bin/bash; \ |
244 | else echo sh; fi ; fi) | 244 | else echo sh; fi ; fi) |
245 | 245 | ||
246 | HOSTCC = gcc | 246 | HOSTCC = gcc |
247 | HOSTCXX = g++ | 247 | HOSTCXX = g++ |
248 | HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer | 248 | HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer |
249 | HOSTCXXFLAGS = -O2 | 249 | HOSTCXXFLAGS = -O2 |
250 | 250 | ||
251 | ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1) | 251 | ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1) |
252 | HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \ | 252 | HOSTCFLAGS += -Wno-unused-value -Wno-unused-parameter \ |
253 | -Wno-missing-field-initializers -fno-delete-null-pointer-checks | 253 | -Wno-missing-field-initializers -fno-delete-null-pointer-checks |
254 | endif | 254 | endif |
255 | 255 | ||
256 | # Decide whether to build built-in, modular, or both. | 256 | # Decide whether to build built-in, modular, or both. |
257 | # Normally, just do built-in. | 257 | # Normally, just do built-in. |
258 | 258 | ||
259 | KBUILD_MODULES := | 259 | KBUILD_MODULES := |
260 | KBUILD_BUILTIN := 1 | 260 | KBUILD_BUILTIN := 1 |
261 | 261 | ||
262 | # If we have only "make modules", don't compile built-in objects. | 262 | # If we have only "make modules", don't compile built-in objects. |
263 | # When we're building modules with modversions, we need to consider | 263 | # When we're building modules with modversions, we need to consider |
264 | # the built-in objects during the descend as well, in order to | 264 | # the built-in objects during the descend as well, in order to |
265 | # make sure the checksums are up to date before we record them. | 265 | # make sure the checksums are up to date before we record them. |
266 | 266 | ||
267 | ifeq ($(MAKECMDGOALS),modules) | 267 | ifeq ($(MAKECMDGOALS),modules) |
268 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) | 268 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) |
269 | endif | 269 | endif |
270 | 270 | ||
271 | # If we have "make <whatever> modules", compile modules | 271 | # If we have "make <whatever> modules", compile modules |
272 | # in addition to whatever we do anyway. | 272 | # in addition to whatever we do anyway. |
273 | # Just "make" or "make all" shall build modules as well | 273 | # Just "make" or "make all" shall build modules as well |
274 | 274 | ||
275 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) | 275 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) |
276 | KBUILD_MODULES := 1 | 276 | KBUILD_MODULES := 1 |
277 | endif | 277 | endif |
278 | 278 | ||
279 | ifeq ($(MAKECMDGOALS),) | 279 | ifeq ($(MAKECMDGOALS),) |
280 | KBUILD_MODULES := 1 | 280 | KBUILD_MODULES := 1 |
281 | endif | 281 | endif |
282 | 282 | ||
283 | export KBUILD_MODULES KBUILD_BUILTIN | 283 | export KBUILD_MODULES KBUILD_BUILTIN |
284 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD | 284 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD |
285 | 285 | ||
286 | # Beautify output | 286 | # Beautify output |
287 | # --------------------------------------------------------------------------- | 287 | # --------------------------------------------------------------------------- |
288 | # | 288 | # |
289 | # Normally, we echo the whole command before executing it. By making | 289 | # Normally, we echo the whole command before executing it. By making |
290 | # that echo $($(quiet)$(cmd)), we now have the possibility to set | 290 | # that echo $($(quiet)$(cmd)), we now have the possibility to set |
291 | # $(quiet) to choose other forms of output instead, e.g. | 291 | # $(quiet) to choose other forms of output instead, e.g. |
292 | # | 292 | # |
293 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ | 293 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ |
294 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< | 294 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< |
295 | # | 295 | # |
296 | # If $(quiet) is empty, the whole command will be printed. | 296 | # If $(quiet) is empty, the whole command will be printed. |
297 | # If it is set to "quiet_", only the short version will be printed. | 297 | # If it is set to "quiet_", only the short version will be printed. |
298 | # If it is set to "silent_", nothing will be printed at all, since | 298 | # If it is set to "silent_", nothing will be printed at all, since |
299 | # the variable $(silent_cmd_cc_o_c) doesn't exist. | 299 | # the variable $(silent_cmd_cc_o_c) doesn't exist. |
300 | # | 300 | # |
301 | # A simple variant is to prefix commands with $(Q) - that's useful | 301 | # A simple variant is to prefix commands with $(Q) - that's useful |
302 | # for commands that shall be hidden in non-verbose mode. | 302 | # for commands that shall be hidden in non-verbose mode. |
303 | # | 303 | # |
304 | # $(Q)ln $@ :< | 304 | # $(Q)ln $@ :< |
305 | # | 305 | # |
306 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. | 306 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. |
307 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. | 307 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. |
308 | 308 | ||
309 | ifeq ($(KBUILD_VERBOSE),1) | 309 | ifeq ($(KBUILD_VERBOSE),1) |
310 | quiet = | 310 | quiet = |
311 | Q = | 311 | Q = |
312 | else | 312 | else |
313 | quiet=quiet_ | 313 | quiet=quiet_ |
314 | Q = @ | 314 | Q = @ |
315 | endif | 315 | endif |
316 | 316 | ||
317 | # If the user is running make -s (silent mode), suppress echoing of | 317 | # If the user is running make -s (silent mode), suppress echoing of |
318 | # commands | 318 | # commands |
319 | 319 | ||
320 | ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 | 320 | ifneq ($(filter 4.%,$(MAKE_VERSION)),) # make-4 |
321 | ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) | 321 | ifneq ($(filter %s ,$(firstword x$(MAKEFLAGS))),) |
322 | quiet=silent_ | 322 | quiet=silent_ |
323 | endif | 323 | endif |
324 | else # make-3.8x | 324 | else # make-3.8x |
325 | ifneq ($(filter s% -s%,$(MAKEFLAGS)),) | 325 | ifneq ($(filter s% -s%,$(MAKEFLAGS)),) |
326 | quiet=silent_ | 326 | quiet=silent_ |
327 | endif | 327 | endif |
328 | endif | 328 | endif |
329 | 329 | ||
330 | export quiet Q KBUILD_VERBOSE | 330 | export quiet Q KBUILD_VERBOSE |
331 | 331 | ||
332 | ifneq ($(CC),) | 332 | ifneq ($(CC),) |
333 | ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1) | 333 | ifeq ($(shell $(CC) -v 2>&1 | grep -c "clang version"), 1) |
334 | COMPILER := clang | 334 | COMPILER := clang |
335 | else | 335 | else |
336 | COMPILER := gcc | 336 | COMPILER := gcc |
337 | endif | 337 | endif |
338 | export COMPILER | 338 | export COMPILER |
339 | endif | 339 | endif |
340 | 340 | ||
341 | # Look for make include files relative to root of kernel src | 341 | # Look for make include files relative to root of kernel src |
342 | MAKEFLAGS += --include-dir=$(srctree) | 342 | MAKEFLAGS += --include-dir=$(srctree) |
343 | 343 | ||
344 | # We need some generic definitions (do not try to remake the file). | 344 | # We need some generic definitions (do not try to remake the file). |
345 | $(srctree)/scripts/Kbuild.include: ; | 345 | $(srctree)/scripts/Kbuild.include: ; |
346 | include $(srctree)/scripts/Kbuild.include | 346 | include $(srctree)/scripts/Kbuild.include |
347 | 347 | ||
348 | # Make variables (CC, etc...) | 348 | # Make variables (CC, etc...) |
349 | 349 | ||
350 | AS = $(CROSS_COMPILE)as | 350 | AS = $(CROSS_COMPILE)as |
351 | LD = $(CROSS_COMPILE)ld | 351 | LD = $(CROSS_COMPILE)ld |
352 | CC = $(CROSS_COMPILE)gcc | 352 | CC = $(CROSS_COMPILE)gcc |
353 | CPP = $(CC) -E | 353 | CPP = $(CC) -E |
354 | AR = $(CROSS_COMPILE)ar | 354 | AR = $(CROSS_COMPILE)ar |
355 | NM = $(CROSS_COMPILE)nm | 355 | NM = $(CROSS_COMPILE)nm |
356 | STRIP = $(CROSS_COMPILE)strip | 356 | STRIP = $(CROSS_COMPILE)strip |
357 | OBJCOPY = $(CROSS_COMPILE)objcopy | 357 | OBJCOPY = $(CROSS_COMPILE)objcopy |
358 | OBJDUMP = $(CROSS_COMPILE)objdump | 358 | OBJDUMP = $(CROSS_COMPILE)objdump |
359 | AWK = awk | 359 | AWK = awk |
360 | GENKSYMS = scripts/genksyms/genksyms | 360 | GENKSYMS = scripts/genksyms/genksyms |
361 | INSTALLKERNEL := installkernel | 361 | INSTALLKERNEL := installkernel |
362 | DEPMOD = /sbin/depmod | 362 | DEPMOD = /sbin/depmod |
363 | PERL = perl | 363 | PERL = perl |
364 | CHECK = sparse | 364 | CHECK = sparse |
365 | 365 | ||
366 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ | 366 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ |
367 | -Wbitwise -Wno-return-void $(CF) | 367 | -Wbitwise -Wno-return-void $(CF) |
368 | CFLAGS_MODULE = | 368 | CFLAGS_MODULE = |
369 | AFLAGS_MODULE = | 369 | AFLAGS_MODULE = |
370 | LDFLAGS_MODULE = | 370 | LDFLAGS_MODULE = |
371 | CFLAGS_KERNEL = | 371 | CFLAGS_KERNEL = |
372 | AFLAGS_KERNEL = | 372 | AFLAGS_KERNEL = |
373 | CFLAGS_GCOV = -fprofile-arcs -ftest-coverage | 373 | CFLAGS_GCOV = -fprofile-arcs -ftest-coverage |
374 | 374 | ||
375 | 375 | ||
376 | # Use USERINCLUDE when you must reference the UAPI directories only. | 376 | # Use USERINCLUDE when you must reference the UAPI directories only. |
377 | USERINCLUDE := \ | 377 | USERINCLUDE := \ |
378 | -I$(srctree)/arch/$(hdr-arch)/include/uapi \ | 378 | -I$(srctree)/arch/$(hdr-arch)/include/uapi \ |
379 | -Iarch/$(hdr-arch)/include/generated/uapi \ | 379 | -Iarch/$(hdr-arch)/include/generated/uapi \ |
380 | -I$(srctree)/include/uapi \ | 380 | -I$(srctree)/include/uapi \ |
381 | -Iinclude/generated/uapi \ | 381 | -Iinclude/generated/uapi \ |
382 | -include $(srctree)/include/linux/kconfig.h | 382 | -include $(srctree)/include/linux/kconfig.h |
383 | 383 | ||
384 | # Use LINUXINCLUDE when you must reference the include/ directory. | 384 | # Use LINUXINCLUDE when you must reference the include/ directory. |
385 | # Needed to be compatible with the O= option | 385 | # Needed to be compatible with the O= option |
386 | LINUXINCLUDE := \ | 386 | LINUXINCLUDE := \ |
387 | -I$(srctree)/arch/$(hdr-arch)/include \ | 387 | -I$(srctree)/arch/$(hdr-arch)/include \ |
388 | -Iarch/$(hdr-arch)/include/generated \ | 388 | -Iarch/$(hdr-arch)/include/generated \ |
389 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ | 389 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ |
390 | -Iinclude \ | 390 | -Iinclude \ |
391 | $(USERINCLUDE) | 391 | $(USERINCLUDE) |
392 | 392 | ||
393 | KBUILD_CPPFLAGS := -D__KERNEL__ | 393 | KBUILD_CPPFLAGS := -D__KERNEL__ |
394 | 394 | ||
395 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ | 395 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
396 | -fno-strict-aliasing -fno-common \ | 396 | -fno-strict-aliasing -fno-common \ |
397 | -Werror-implicit-function-declaration \ | 397 | -Werror-implicit-function-declaration \ |
398 | -Wno-format-security \ | 398 | -Wno-format-security \ |
399 | $(call cc-option,-fno-delete-null-pointer-checks,) | 399 | $(call cc-option,-fno-delete-null-pointer-checks,) |
400 | KBUILD_AFLAGS_KERNEL := | 400 | KBUILD_AFLAGS_KERNEL := |
401 | KBUILD_CFLAGS_KERNEL := | 401 | KBUILD_CFLAGS_KERNEL := |
402 | KBUILD_AFLAGS := -D__ASSEMBLY__ | 402 | KBUILD_AFLAGS := -D__ASSEMBLY__ |
403 | KBUILD_AFLAGS_MODULE := -DMODULE | 403 | KBUILD_AFLAGS_MODULE := -DMODULE |
404 | KBUILD_CFLAGS_MODULE := -DMODULE | 404 | KBUILD_CFLAGS_MODULE := -DMODULE |
405 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds | 405 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds |
406 | 406 | ||
407 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) | 407 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) |
408 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) | 408 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) |
409 | KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) | 409 | KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) |
410 | 410 | ||
411 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION | 411 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
412 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC | 412 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |
413 | export CPP AR NM STRIP OBJCOPY OBJDUMP | 413 | export CPP AR NM STRIP OBJCOPY OBJDUMP |
414 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE | 414 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE |
415 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS | 415 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS |
416 | 416 | ||
417 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS | 417 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
418 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV | 418 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV |
419 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE | 419 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
420 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE | 420 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE |
421 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL | 421 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL |
422 | export KBUILD_ARFLAGS | 422 | export KBUILD_ARFLAGS |
423 | 423 | ||
424 | # When compiling out-of-tree modules, put MODVERDIR in the module | 424 | # When compiling out-of-tree modules, put MODVERDIR in the module |
425 | # tree rather than in the kernel tree. The kernel tree might | 425 | # tree rather than in the kernel tree. The kernel tree might |
426 | # even be read-only. | 426 | # even be read-only. |
427 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions | 427 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions |
428 | 428 | ||
429 | # Files to ignore in find ... statements | 429 | # Files to ignore in find ... statements |
430 | 430 | ||
431 | export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ | 431 | export RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o \ |
432 | -name CVS -o -name .pc -o -name .hg -o -name .git \) \ | 432 | -name CVS -o -name .pc -o -name .hg -o -name .git \) \ |
433 | -prune -o | 433 | -prune -o |
434 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ | 434 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ |
435 | --exclude CVS --exclude .pc --exclude .hg --exclude .git | 435 | --exclude CVS --exclude .pc --exclude .hg --exclude .git |
436 | 436 | ||
437 | # =========================================================================== | 437 | # =========================================================================== |
438 | # Rules shared between *config targets and build targets | 438 | # Rules shared between *config targets and build targets |
439 | 439 | ||
440 | # Basic helpers built in scripts/ | 440 | # Basic helpers built in scripts/ |
441 | PHONY += scripts_basic | 441 | PHONY += scripts_basic |
442 | scripts_basic: | 442 | scripts_basic: |
443 | $(Q)$(MAKE) $(build)=scripts/basic | 443 | $(Q)$(MAKE) $(build)=scripts/basic |
444 | $(Q)rm -f .tmp_quiet_recordmcount | 444 | $(Q)rm -f .tmp_quiet_recordmcount |
445 | 445 | ||
446 | # To avoid any implicit rule to kick in, define an empty command. | 446 | # To avoid any implicit rule to kick in, define an empty command. |
447 | scripts/basic/%: scripts_basic ; | 447 | scripts/basic/%: scripts_basic ; |
448 | 448 | ||
449 | PHONY += outputmakefile | 449 | PHONY += outputmakefile |
450 | # outputmakefile generates a Makefile in the output directory, if using a | 450 | # outputmakefile generates a Makefile in the output directory, if using a |
451 | # separate output directory. This allows convenient use of make in the | 451 | # separate output directory. This allows convenient use of make in the |
452 | # output directory. | 452 | # output directory. |
453 | outputmakefile: | 453 | outputmakefile: |
454 | ifneq ($(KBUILD_SRC),) | 454 | ifneq ($(KBUILD_SRC),) |
455 | $(Q)ln -fsn $(srctree) source | 455 | $(Q)ln -fsn $(srctree) source |
456 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ | 456 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ |
457 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) | 457 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) |
458 | endif | 458 | endif |
459 | 459 | ||
460 | # Support for using generic headers in asm-generic | 460 | # Support for using generic headers in asm-generic |
461 | PHONY += asm-generic | 461 | PHONY += asm-generic |
462 | asm-generic: | 462 | asm-generic: |
463 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ | 463 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ |
464 | src=asm obj=arch/$(SRCARCH)/include/generated/asm | 464 | src=asm obj=arch/$(SRCARCH)/include/generated/asm |
465 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ | 465 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ |
466 | src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm | 466 | src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm |
467 | 467 | ||
468 | # To make sure we do not include .config for any of the *config targets | 468 | # To make sure we do not include .config for any of the *config targets |
469 | # catch them early, and hand them over to scripts/kconfig/Makefile | 469 | # catch them early, and hand them over to scripts/kconfig/Makefile |
470 | # It is allowed to specify more targets when calling make, including | 470 | # It is allowed to specify more targets when calling make, including |
471 | # mixing *config targets and build targets. | 471 | # mixing *config targets and build targets. |
472 | # For example 'make oldconfig all'. | 472 | # For example 'make oldconfig all'. |
473 | # Detect when mixed targets is specified, and make a second invocation | 473 | # Detect when mixed targets is specified, and make a second invocation |
474 | # of make so .config is not included in this case either (for *config). | 474 | # of make so .config is not included in this case either (for *config). |
475 | 475 | ||
476 | version_h := include/generated/uapi/linux/version.h | 476 | version_h := include/generated/uapi/linux/version.h |
477 | 477 | ||
478 | no-dot-config-targets := clean mrproper distclean \ | 478 | no-dot-config-targets := clean mrproper distclean \ |
479 | cscope gtags TAGS tags help %docs check% coccicheck \ | 479 | cscope gtags TAGS tags help %docs check% coccicheck \ |
480 | $(version_h) headers_% archheaders archscripts \ | 480 | $(version_h) headers_% archheaders archscripts \ |
481 | kernelversion %src-pkg | 481 | kernelversion %src-pkg |
482 | 482 | ||
483 | config-targets := 0 | 483 | config-targets := 0 |
484 | mixed-targets := 0 | 484 | mixed-targets := 0 |
485 | dot-config := 1 | 485 | dot-config := 1 |
486 | 486 | ||
487 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) | 487 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) |
488 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) | 488 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) |
489 | dot-config := 0 | 489 | dot-config := 0 |
490 | endif | 490 | endif |
491 | endif | 491 | endif |
492 | 492 | ||
493 | ifeq ($(KBUILD_EXTMOD),) | 493 | ifeq ($(KBUILD_EXTMOD),) |
494 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) | 494 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) |
495 | config-targets := 1 | 495 | config-targets := 1 |
496 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) | 496 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) |
497 | mixed-targets := 1 | 497 | mixed-targets := 1 |
498 | endif | 498 | endif |
499 | endif | 499 | endif |
500 | endif | 500 | endif |
501 | 501 | ||
502 | ifeq ($(mixed-targets),1) | 502 | ifeq ($(mixed-targets),1) |
503 | # =========================================================================== | 503 | # =========================================================================== |
504 | # We're called with mixed targets (*config and build targets). | 504 | # We're called with mixed targets (*config and build targets). |
505 | # Handle them one by one. | 505 | # Handle them one by one. |
506 | 506 | ||
507 | %:: FORCE | 507 | %:: FORCE |
508 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ | 508 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ |
509 | 509 | ||
510 | else | 510 | else |
511 | ifeq ($(config-targets),1) | 511 | ifeq ($(config-targets),1) |
512 | # =========================================================================== | 512 | # =========================================================================== |
513 | # *config targets only - make sure prerequisites are updated, and descend | 513 | # *config targets only - make sure prerequisites are updated, and descend |
514 | # in scripts/kconfig to make the *config target | 514 | # in scripts/kconfig to make the *config target |
515 | 515 | ||
516 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. | 516 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. |
517 | # KBUILD_DEFCONFIG may point out an alternative default configuration | 517 | # KBUILD_DEFCONFIG may point out an alternative default configuration |
518 | # used for 'make defconfig' | 518 | # used for 'make defconfig' |
519 | include $(srctree)/arch/$(SRCARCH)/Makefile | 519 | include $(srctree)/arch/$(SRCARCH)/Makefile |
520 | export KBUILD_DEFCONFIG KBUILD_KCONFIG | 520 | export KBUILD_DEFCONFIG KBUILD_KCONFIG |
521 | 521 | ||
522 | config: scripts_basic outputmakefile FORCE | 522 | config: scripts_basic outputmakefile FORCE |
523 | $(Q)mkdir -p include/linux include/config | 523 | $(Q)mkdir -p include/linux include/config |
524 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 524 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
525 | 525 | ||
526 | %config: scripts_basic outputmakefile FORCE | 526 | %config: scripts_basic outputmakefile FORCE |
527 | $(Q)mkdir -p include/linux include/config | 527 | $(Q)mkdir -p include/linux include/config |
528 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 528 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
529 | 529 | ||
530 | else | 530 | else |
531 | # =========================================================================== | 531 | # =========================================================================== |
532 | # Build targets only - this includes vmlinux, arch specific targets, clean | 532 | # Build targets only - this includes vmlinux, arch specific targets, clean |
533 | # targets and others. In general all targets except *config targets. | 533 | # targets and others. In general all targets except *config targets. |
534 | 534 | ||
535 | ifeq ($(KBUILD_EXTMOD),) | 535 | ifeq ($(KBUILD_EXTMOD),) |
536 | # Additional helpers built in scripts/ | 536 | # Additional helpers built in scripts/ |
537 | # Carefully list dependencies so we do not try to build scripts twice | 537 | # Carefully list dependencies so we do not try to build scripts twice |
538 | # in parallel | 538 | # in parallel |
539 | PHONY += scripts | 539 | PHONY += scripts |
540 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \ | 540 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \ |
541 | asm-generic | 541 | asm-generic |
542 | $(Q)$(MAKE) $(build)=$(@) | 542 | $(Q)$(MAKE) $(build)=$(@) |
543 | 543 | ||
544 | # Objects we will link into vmlinux / subdirs we need to visit | 544 | # Objects we will link into vmlinux / subdirs we need to visit |
545 | init-y := init/ | 545 | init-y := init/ |
546 | drivers-y := drivers/ sound/ firmware/ | 546 | drivers-y := drivers/ sound/ firmware/ |
547 | net-y := net/ | 547 | net-y := net/ |
548 | libs-y := lib/ | 548 | libs-y := lib/ |
549 | core-y := usr/ | 549 | core-y := usr/ |
550 | endif # KBUILD_EXTMOD | 550 | endif # KBUILD_EXTMOD |
551 | 551 | ||
552 | ifeq ($(dot-config),1) | 552 | ifeq ($(dot-config),1) |
553 | # Read in config | 553 | # Read in config |
554 | -include include/config/auto.conf | 554 | -include include/config/auto.conf |
555 | 555 | ||
556 | ifeq ($(KBUILD_EXTMOD),) | 556 | ifeq ($(KBUILD_EXTMOD),) |
557 | # Read in dependencies to all Kconfig* files, make sure to run | 557 | # Read in dependencies to all Kconfig* files, make sure to run |
558 | # oldconfig if changes are detected. | 558 | # oldconfig if changes are detected. |
559 | -include include/config/auto.conf.cmd | 559 | -include include/config/auto.conf.cmd |
560 | 560 | ||
561 | # To avoid any implicit rule to kick in, define an empty command | 561 | # To avoid any implicit rule to kick in, define an empty command |
562 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; | 562 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; |
563 | 563 | ||
564 | # If .config is newer than include/config/auto.conf, someone tinkered | 564 | # If .config is newer than include/config/auto.conf, someone tinkered |
565 | # with it and forgot to run make oldconfig. | 565 | # with it and forgot to run make oldconfig. |
566 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so | 566 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so |
567 | # we execute the config step to be sure to catch updated Kconfig files | 567 | # we execute the config step to be sure to catch updated Kconfig files |
568 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd | 568 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
569 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig | 569 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig |
570 | else | 570 | else |
571 | # external modules needs include/generated/autoconf.h and include/config/auto.conf | 571 | # external modules needs include/generated/autoconf.h and include/config/auto.conf |
572 | # but do not care if they are up-to-date. Use auto.conf to trigger the test | 572 | # but do not care if they are up-to-date. Use auto.conf to trigger the test |
573 | PHONY += include/config/auto.conf | 573 | PHONY += include/config/auto.conf |
574 | 574 | ||
575 | include/config/auto.conf: | 575 | include/config/auto.conf: |
576 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ | 576 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ |
577 | echo >&2; \ | 577 | echo >&2; \ |
578 | echo >&2 " ERROR: Kernel configuration is invalid."; \ | 578 | echo >&2 " ERROR: Kernel configuration is invalid."; \ |
579 | echo >&2 " include/generated/autoconf.h or $@ are missing.";\ | 579 | echo >&2 " include/generated/autoconf.h or $@ are missing.";\ |
580 | echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ | 580 | echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ |
581 | echo >&2 ; \ | 581 | echo >&2 ; \ |
582 | /bin/false) | 582 | /bin/false) |
583 | 583 | ||
584 | endif # KBUILD_EXTMOD | 584 | endif # KBUILD_EXTMOD |
585 | 585 | ||
586 | else | 586 | else |
587 | # Dummy target needed, because used as prerequisite | 587 | # Dummy target needed, because used as prerequisite |
588 | include/config/auto.conf: ; | 588 | include/config/auto.conf: ; |
589 | endif # $(dot-config) | 589 | endif # $(dot-config) |
590 | 590 | ||
591 | # The all: target is the default when no target is given on the | 591 | # The all: target is the default when no target is given on the |
592 | # command line. | 592 | # command line. |
593 | # This allow a user to issue only 'make' to build a kernel including modules | 593 | # This allow a user to issue only 'make' to build a kernel including modules |
594 | # Defaults to vmlinux, but the arch makefile usually adds further targets | 594 | # Defaults to vmlinux, but the arch makefile usually adds further targets |
595 | all: vmlinux | 595 | all: vmlinux |
596 | 596 | ||
597 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE | 597 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
598 | KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) | 598 | KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) |
599 | else | 599 | else |
600 | KBUILD_CFLAGS += -O2 | 600 | KBUILD_CFLAGS += -O2 |
601 | endif | 601 | endif |
602 | 602 | ||
603 | include $(srctree)/arch/$(SRCARCH)/Makefile | 603 | include $(srctree)/arch/$(SRCARCH)/Makefile |
604 | 604 | ||
605 | ifdef CONFIG_READABLE_ASM | 605 | ifdef CONFIG_READABLE_ASM |
606 | # Disable optimizations that make assembler listings hard to read. | 606 | # Disable optimizations that make assembler listings hard to read. |
607 | # reorder blocks reorders the control in the function | 607 | # reorder blocks reorders the control in the function |
608 | # ipa clone creates specialized cloned functions | 608 | # ipa clone creates specialized cloned functions |
609 | # partial inlining inlines only parts of functions | 609 | # partial inlining inlines only parts of functions |
610 | KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ | 610 | KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ |
611 | $(call cc-option,-fno-ipa-cp-clone,) \ | 611 | $(call cc-option,-fno-ipa-cp-clone,) \ |
612 | $(call cc-option,-fno-partial-inlining) | 612 | $(call cc-option,-fno-partial-inlining) |
613 | endif | 613 | endif |
614 | 614 | ||
615 | ifneq ($(CONFIG_FRAME_WARN),0) | 615 | ifneq ($(CONFIG_FRAME_WARN),0) |
616 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) | 616 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) |
617 | endif | 617 | endif |
618 | 618 | ||
619 | # Handle stack protector mode. | 619 | # Handle stack protector mode. |
620 | ifdef CONFIG_CC_STACKPROTECTOR_REGULAR | 620 | ifdef CONFIG_CC_STACKPROTECTOR_REGULAR |
621 | stackp-flag := -fstack-protector | 621 | stackp-flag := -fstack-protector |
622 | ifeq ($(call cc-option, $(stackp-flag)),) | 622 | ifeq ($(call cc-option, $(stackp-flag)),) |
623 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \ | 623 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_REGULAR: \ |
624 | -fstack-protector not supported by compiler) | 624 | -fstack-protector not supported by compiler) |
625 | endif | 625 | endif |
626 | else | 626 | else |
627 | ifdef CONFIG_CC_STACKPROTECTOR_STRONG | 627 | ifdef CONFIG_CC_STACKPROTECTOR_STRONG |
628 | stackp-flag := -fstack-protector-strong | 628 | stackp-flag := -fstack-protector-strong |
629 | ifeq ($(call cc-option, $(stackp-flag)),) | 629 | ifeq ($(call cc-option, $(stackp-flag)),) |
630 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \ | 630 | $(warning Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: \ |
631 | -fstack-protector-strong not supported by compiler) | 631 | -fstack-protector-strong not supported by compiler) |
632 | endif | 632 | endif |
633 | else | 633 | else |
634 | # Force off for distro compilers that enable stack protector by default. | 634 | # Force off for distro compilers that enable stack protector by default. |
635 | stackp-flag := $(call cc-option, -fno-stack-protector) | 635 | stackp-flag := $(call cc-option, -fno-stack-protector) |
636 | endif | 636 | endif |
637 | endif | 637 | endif |
638 | KBUILD_CFLAGS += $(stackp-flag) | 638 | KBUILD_CFLAGS += $(stackp-flag) |
639 | 639 | ||
640 | ifeq ($(COMPILER),clang) | 640 | ifeq ($(COMPILER),clang) |
641 | KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) | 641 | KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,) |
642 | KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) | 642 | KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,) |
643 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) | 643 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable) |
644 | KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) | 644 | KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier) |
645 | KBUILD_CFLAGS += $(call cc-disable-warning, gnu) | 645 | KBUILD_CFLAGS += $(call cc-disable-warning, gnu) |
646 | # Quiet clang warning: comparison of unsigned expression < 0 is always false | 646 | # Quiet clang warning: comparison of unsigned expression < 0 is always false |
647 | KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) | 647 | KBUILD_CFLAGS += $(call cc-disable-warning, tautological-compare) |
648 | # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the | 648 | # CLANG uses a _MergedGlobals as optimization, but this breaks modpost, as the |
649 | # source of a reference will be _MergedGlobals and not on of the whitelisted names. | 649 | # source of a reference will be _MergedGlobals and not on of the whitelisted names. |
650 | # See modpost pattern 2 | 650 | # See modpost pattern 2 |
651 | KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) | 651 | KBUILD_CFLAGS += $(call cc-option, -mno-global-merge,) |
652 | else | 652 | else |
653 | 653 | ||
654 | # This warning generated too much noise in a regular build. | 654 | # This warning generated too much noise in a regular build. |
655 | # Use make W=1 to enable this warning (see scripts/Makefile.build) | 655 | # Use make W=1 to enable this warning (see scripts/Makefile.build) |
656 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) | 656 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) |
657 | endif | 657 | endif |
658 | 658 | ||
659 | ifdef CONFIG_FRAME_POINTER | 659 | ifdef CONFIG_FRAME_POINTER |
660 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls | 660 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
661 | else | 661 | else |
662 | # Some targets (ARM with Thumb2, for example), can't be built with frame | 662 | # Some targets (ARM with Thumb2, for example), can't be built with frame |
663 | # pointers. For those, we don't have FUNCTION_TRACER automatically | 663 | # pointers. For those, we don't have FUNCTION_TRACER automatically |
664 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is | 664 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is |
665 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use | 665 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use |
666 | # -fomit-frame-pointer with FUNCTION_TRACER. | 666 | # -fomit-frame-pointer with FUNCTION_TRACER. |
667 | ifndef CONFIG_FUNCTION_TRACER | 667 | ifndef CONFIG_FUNCTION_TRACER |
668 | KBUILD_CFLAGS += -fomit-frame-pointer | 668 | KBUILD_CFLAGS += -fomit-frame-pointer |
669 | endif | 669 | endif |
670 | endif | 670 | endif |
671 | 671 | ||
672 | ifdef CONFIG_DEBUG_INFO | 672 | ifdef CONFIG_DEBUG_INFO |
673 | KBUILD_CFLAGS += -g | 673 | KBUILD_CFLAGS += -g |
674 | KBUILD_AFLAGS += -Wa,--gdwarf-2 | 674 | KBUILD_AFLAGS += -Wa,-gdwarf-2 |
675 | endif | 675 | endif |
676 | 676 | ||
677 | ifdef CONFIG_DEBUG_INFO_REDUCED | 677 | ifdef CONFIG_DEBUG_INFO_REDUCED |
678 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ | 678 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ |
679 | $(call cc-option,-fno-var-tracking) | 679 | $(call cc-option,-fno-var-tracking) |
680 | endif | 680 | endif |
681 | 681 | ||
682 | ifdef CONFIG_FUNCTION_TRACER | 682 | ifdef CONFIG_FUNCTION_TRACER |
683 | ifdef CONFIG_HAVE_FENTRY | 683 | ifdef CONFIG_HAVE_FENTRY |
684 | CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) | 684 | CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) |
685 | endif | 685 | endif |
686 | KBUILD_CFLAGS += -pg $(CC_USING_FENTRY) | 686 | KBUILD_CFLAGS += -pg $(CC_USING_FENTRY) |
687 | KBUILD_AFLAGS += $(CC_USING_FENTRY) | 687 | KBUILD_AFLAGS += $(CC_USING_FENTRY) |
688 | ifdef CONFIG_DYNAMIC_FTRACE | 688 | ifdef CONFIG_DYNAMIC_FTRACE |
689 | ifdef CONFIG_HAVE_C_RECORDMCOUNT | 689 | ifdef CONFIG_HAVE_C_RECORDMCOUNT |
690 | BUILD_C_RECORDMCOUNT := y | 690 | BUILD_C_RECORDMCOUNT := y |
691 | export BUILD_C_RECORDMCOUNT | 691 | export BUILD_C_RECORDMCOUNT |
692 | endif | 692 | endif |
693 | endif | 693 | endif |
694 | endif | 694 | endif |
695 | 695 | ||
696 | # We trigger additional mismatches with less inlining | 696 | # We trigger additional mismatches with less inlining |
697 | ifdef CONFIG_DEBUG_SECTION_MISMATCH | 697 | ifdef CONFIG_DEBUG_SECTION_MISMATCH |
698 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) | 698 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) |
699 | endif | 699 | endif |
700 | 700 | ||
701 | # arch Makefile may override CC so keep this after arch Makefile is included | 701 | # arch Makefile may override CC so keep this after arch Makefile is included |
702 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) | 702 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
703 | CHECKFLAGS += $(NOSTDINC_FLAGS) | 703 | CHECKFLAGS += $(NOSTDINC_FLAGS) |
704 | 704 | ||
705 | # warn about C99 declaration after statement | 705 | # warn about C99 declaration after statement |
706 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) | 706 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
707 | 707 | ||
708 | # disable pointer signed / unsigned warnings in gcc 4.0 | 708 | # disable pointer signed / unsigned warnings in gcc 4.0 |
709 | KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) | 709 | KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) |
710 | 710 | ||
711 | # disable invalid "can't wrap" optimizations for signed / pointers | 711 | # disable invalid "can't wrap" optimizations for signed / pointers |
712 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) | 712 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) |
713 | 713 | ||
714 | # conserve stack if available | 714 | # conserve stack if available |
715 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) | 715 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) |
716 | 716 | ||
717 | # disallow errors like 'EXPORT_GPL(foo);' with missing header | 717 | # disallow errors like 'EXPORT_GPL(foo);' with missing header |
718 | KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) | 718 | KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) |
719 | 719 | ||
720 | # require functions to have arguments in prototypes, not empty 'int foo()' | 720 | # require functions to have arguments in prototypes, not empty 'int foo()' |
721 | KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) | 721 | KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) |
722 | 722 | ||
723 | # Prohibit date/time macros, which would make the build non-deterministic | 723 | # Prohibit date/time macros, which would make the build non-deterministic |
724 | KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) | 724 | KBUILD_CFLAGS += $(call cc-option,-Werror=date-time) |
725 | 725 | ||
726 | # use the deterministic mode of AR if available | 726 | # use the deterministic mode of AR if available |
727 | KBUILD_ARFLAGS := $(call ar-option,D) | 727 | KBUILD_ARFLAGS := $(call ar-option,D) |
728 | 728 | ||
729 | # check for 'asm goto' | 729 | # check for 'asm goto' |
730 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) | 730 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) |
731 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO | 731 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO |
732 | endif | 732 | endif |
733 | 733 | ||
734 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments | 734 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
735 | KBUILD_CPPFLAGS += $(KCPPFLAGS) | 735 | KBUILD_CPPFLAGS += $(KCPPFLAGS) |
736 | KBUILD_AFLAGS += $(KAFLAGS) | 736 | KBUILD_AFLAGS += $(KAFLAGS) |
737 | KBUILD_CFLAGS += $(KCFLAGS) | 737 | KBUILD_CFLAGS += $(KCFLAGS) |
738 | 738 | ||
739 | # Use --build-id when available. | 739 | # Use --build-id when available. |
740 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ | 740 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ |
741 | $(call cc-ldoption, -Wl$(comma)--build-id,)) | 741 | $(call cc-ldoption, -Wl$(comma)--build-id,)) |
742 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) | 742 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) |
743 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) | 743 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) |
744 | 744 | ||
745 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) | 745 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) |
746 | LDFLAGS_vmlinux += $(call ld-option, -X,) | 746 | LDFLAGS_vmlinux += $(call ld-option, -X,) |
747 | endif | 747 | endif |
748 | 748 | ||
749 | # Default kernel image to build when no specific target is given. | 749 | # Default kernel image to build when no specific target is given. |
750 | # KBUILD_IMAGE may be overruled on the command line or | 750 | # KBUILD_IMAGE may be overruled on the command line or |
751 | # set in the environment | 751 | # set in the environment |
752 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over | 752 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over |
753 | # this default value | 753 | # this default value |
754 | export KBUILD_IMAGE ?= vmlinux | 754 | export KBUILD_IMAGE ?= vmlinux |
755 | 755 | ||
756 | # | 756 | # |
757 | # INSTALL_PATH specifies where to place the updated kernel and system map | 757 | # INSTALL_PATH specifies where to place the updated kernel and system map |
758 | # images. Default is /boot, but you can set it to other values | 758 | # images. Default is /boot, but you can set it to other values |
759 | export INSTALL_PATH ?= /boot | 759 | export INSTALL_PATH ?= /boot |
760 | 760 | ||
761 | # | 761 | # |
762 | # INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots. | 762 | # INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots. |
763 | # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as | 763 | # Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as |
764 | # an argument if needed. Otherwise it defaults to the kernel install path | 764 | # an argument if needed. Otherwise it defaults to the kernel install path |
765 | # | 765 | # |
766 | export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) | 766 | export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) |
767 | 767 | ||
768 | # | 768 | # |
769 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory | 769 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory |
770 | # relocations required by build roots. This is not defined in the | 770 | # relocations required by build roots. This is not defined in the |
771 | # makefile but the argument can be passed to make if needed. | 771 | # makefile but the argument can be passed to make if needed. |
772 | # | 772 | # |
773 | 773 | ||
774 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) | 774 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
775 | export MODLIB | 775 | export MODLIB |
776 | 776 | ||
777 | # | 777 | # |
778 | # INSTALL_MOD_STRIP, if defined, will cause modules to be | 778 | # INSTALL_MOD_STRIP, if defined, will cause modules to be |
779 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then | 779 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then |
780 | # the default option --strip-debug will be used. Otherwise, | 780 | # the default option --strip-debug will be used. Otherwise, |
781 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. | 781 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. |
782 | 782 | ||
783 | ifdef INSTALL_MOD_STRIP | 783 | ifdef INSTALL_MOD_STRIP |
784 | ifeq ($(INSTALL_MOD_STRIP),1) | 784 | ifeq ($(INSTALL_MOD_STRIP),1) |
785 | mod_strip_cmd = $(STRIP) --strip-debug | 785 | mod_strip_cmd = $(STRIP) --strip-debug |
786 | else | 786 | else |
787 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) | 787 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
788 | endif # INSTALL_MOD_STRIP=1 | 788 | endif # INSTALL_MOD_STRIP=1 |
789 | else | 789 | else |
790 | mod_strip_cmd = true | 790 | mod_strip_cmd = true |
791 | endif # INSTALL_MOD_STRIP | 791 | endif # INSTALL_MOD_STRIP |
792 | export mod_strip_cmd | 792 | export mod_strip_cmd |
793 | 793 | ||
794 | # Select initial ramdisk compression format, default is gzip(1). | 794 | # Select initial ramdisk compression format, default is gzip(1). |
795 | # This shall be used by the dracut(8) tool while creating an initramfs image. | 795 | # This shall be used by the dracut(8) tool while creating an initramfs image. |
796 | # | 796 | # |
797 | INITRD_COMPRESS-y := gzip | 797 | INITRD_COMPRESS-y := gzip |
798 | INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2 | 798 | INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2 |
799 | INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma | 799 | INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma |
800 | INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz | 800 | INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz |
801 | INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo | 801 | INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo |
802 | INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4 | 802 | INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4 |
803 | # do not export INITRD_COMPRESS, since we didn't actually | 803 | # do not export INITRD_COMPRESS, since we didn't actually |
804 | # choose a sane default compression above. | 804 | # choose a sane default compression above. |
805 | # export INITRD_COMPRESS := $(INITRD_COMPRESS-y) | 805 | # export INITRD_COMPRESS := $(INITRD_COMPRESS-y) |
806 | 806 | ||
807 | ifdef CONFIG_MODULE_SIG_ALL | 807 | ifdef CONFIG_MODULE_SIG_ALL |
808 | MODSECKEY = ./signing_key.priv | 808 | MODSECKEY = ./signing_key.priv |
809 | MODPUBKEY = ./signing_key.x509 | 809 | MODPUBKEY = ./signing_key.x509 |
810 | export MODPUBKEY | 810 | export MODPUBKEY |
811 | mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) | 811 | mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) |
812 | else | 812 | else |
813 | mod_sign_cmd = true | 813 | mod_sign_cmd = true |
814 | endif | 814 | endif |
815 | export mod_sign_cmd | 815 | export mod_sign_cmd |
816 | 816 | ||
817 | 817 | ||
818 | ifeq ($(KBUILD_EXTMOD),) | 818 | ifeq ($(KBUILD_EXTMOD),) |
819 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ | 819 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
820 | 820 | ||
821 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ | 821 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ |
822 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ | 822 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ |
823 | $(net-y) $(net-m) $(libs-y) $(libs-m))) | 823 | $(net-y) $(net-m) $(libs-y) $(libs-m))) |
824 | 824 | ||
825 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ | 825 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ |
826 | $(init-n) $(init-) \ | 826 | $(init-n) $(init-) \ |
827 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ | 827 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ |
828 | $(net-n) $(net-) $(libs-n) $(libs-)))) | 828 | $(net-n) $(net-) $(libs-n) $(libs-)))) |
829 | 829 | ||
830 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) | 830 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) |
831 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) | 831 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) |
832 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) | 832 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) |
833 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) | 833 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) |
834 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) | 834 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) |
835 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) | 835 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) |
836 | libs-y := $(libs-y1) $(libs-y2) | 836 | libs-y := $(libs-y1) $(libs-y2) |
837 | 837 | ||
838 | # Externally visible symbols (used by link-vmlinux.sh) | 838 | # Externally visible symbols (used by link-vmlinux.sh) |
839 | export KBUILD_VMLINUX_INIT := $(head-y) $(init-y) | 839 | export KBUILD_VMLINUX_INIT := $(head-y) $(init-y) |
840 | export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) | 840 | export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) |
841 | export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds | 841 | export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds |
842 | export LDFLAGS_vmlinux | 842 | export LDFLAGS_vmlinux |
843 | # used by scripts/pacmage/Makefile | 843 | # used by scripts/pacmage/Makefile |
844 | export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt) | 844 | export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt) |
845 | 845 | ||
846 | vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) | 846 | vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) |
847 | 847 | ||
848 | # Final link of vmlinux | 848 | # Final link of vmlinux |
849 | cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) | 849 | cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) |
850 | quiet_cmd_link-vmlinux = LINK $@ | 850 | quiet_cmd_link-vmlinux = LINK $@ |
851 | 851 | ||
852 | # Include targets which we want to | 852 | # Include targets which we want to |
853 | # execute if the rest of the kernel build went well. | 853 | # execute if the rest of the kernel build went well. |
854 | vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE | 854 | vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE |
855 | ifdef CONFIG_HEADERS_CHECK | 855 | ifdef CONFIG_HEADERS_CHECK |
856 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check | 856 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
857 | endif | 857 | endif |
858 | ifdef CONFIG_SAMPLES | 858 | ifdef CONFIG_SAMPLES |
859 | $(Q)$(MAKE) $(build)=samples | 859 | $(Q)$(MAKE) $(build)=samples |
860 | endif | 860 | endif |
861 | ifdef CONFIG_BUILD_DOCSRC | 861 | ifdef CONFIG_BUILD_DOCSRC |
862 | $(Q)$(MAKE) $(build)=Documentation | 862 | $(Q)$(MAKE) $(build)=Documentation |
863 | endif | 863 | endif |
864 | +$(call if_changed,link-vmlinux) | 864 | +$(call if_changed,link-vmlinux) |
865 | 865 | ||
866 | # The actual objects are generated when descending, | 866 | # The actual objects are generated when descending, |
867 | # make sure no implicit rule kicks in | 867 | # make sure no implicit rule kicks in |
868 | $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; | 868 | $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; |
869 | 869 | ||
870 | # Handle descending into subdirectories listed in $(vmlinux-dirs) | 870 | # Handle descending into subdirectories listed in $(vmlinux-dirs) |
871 | # Preset locale variables to speed up the build process. Limit locale | 871 | # Preset locale variables to speed up the build process. Limit locale |
872 | # tweaks to this spot to avoid wrong language settings when running | 872 | # tweaks to this spot to avoid wrong language settings when running |
873 | # make menuconfig etc. | 873 | # make menuconfig etc. |
874 | # Error messages still appears in the original language | 874 | # Error messages still appears in the original language |
875 | 875 | ||
876 | PHONY += $(vmlinux-dirs) | 876 | PHONY += $(vmlinux-dirs) |
877 | $(vmlinux-dirs): prepare scripts | 877 | $(vmlinux-dirs): prepare scripts |
878 | $(Q)$(MAKE) $(build)=$@ | 878 | $(Q)$(MAKE) $(build)=$@ |
879 | 879 | ||
880 | define filechk_kernel.release | 880 | define filechk_kernel.release |
881 | echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" | 881 | echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
882 | endef | 882 | endef |
883 | 883 | ||
884 | # Store (new) KERNELRELEASE string in include/config/kernel.release | 884 | # Store (new) KERNELRELEASE string in include/config/kernel.release |
885 | include/config/kernel.release: include/config/auto.conf FORCE | 885 | include/config/kernel.release: include/config/auto.conf FORCE |
886 | $(call filechk,kernel.release) | 886 | $(call filechk,kernel.release) |
887 | 887 | ||
888 | 888 | ||
889 | # Things we need to do before we recursively start building the kernel | 889 | # Things we need to do before we recursively start building the kernel |
890 | # or the modules are listed in "prepare". | 890 | # or the modules are listed in "prepare". |
891 | # A multi level approach is used. prepareN is processed before prepareN-1. | 891 | # A multi level approach is used. prepareN is processed before prepareN-1. |
892 | # archprepare is used in arch Makefiles and when processed asm symlink, | 892 | # archprepare is used in arch Makefiles and when processed asm symlink, |
893 | # version.h and scripts_basic is processed / created. | 893 | # version.h and scripts_basic is processed / created. |
894 | 894 | ||
895 | # Listed in dependency order | 895 | # Listed in dependency order |
896 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 | 896 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
897 | 897 | ||
898 | # prepare3 is used to check if we are building in a separate output directory, | 898 | # prepare3 is used to check if we are building in a separate output directory, |
899 | # and if so do: | 899 | # and if so do: |
900 | # 1) Check that make has not been executed in the kernel src $(srctree) | 900 | # 1) Check that make has not been executed in the kernel src $(srctree) |
901 | prepare3: include/config/kernel.release | 901 | prepare3: include/config/kernel.release |
902 | ifneq ($(KBUILD_SRC),) | 902 | ifneq ($(KBUILD_SRC),) |
903 | @$(kecho) ' Using $(srctree) as source for kernel' | 903 | @$(kecho) ' Using $(srctree) as source for kernel' |
904 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ | 904 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
905 | echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ | 905 | echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ |
906 | echo >&2 " in the '$(srctree)' directory.";\ | 906 | echo >&2 " in the '$(srctree)' directory.";\ |
907 | /bin/false; \ | 907 | /bin/false; \ |
908 | fi; | 908 | fi; |
909 | endif | 909 | endif |
910 | 910 | ||
911 | # prepare2 creates a makefile if using a separate output directory | 911 | # prepare2 creates a makefile if using a separate output directory |
912 | prepare2: prepare3 outputmakefile asm-generic | 912 | prepare2: prepare3 outputmakefile asm-generic |
913 | 913 | ||
914 | prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ | 914 | prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ |
915 | include/config/auto.conf | 915 | include/config/auto.conf |
916 | $(cmd_crmodverdir) | 916 | $(cmd_crmodverdir) |
917 | 917 | ||
918 | archprepare: archheaders archscripts prepare1 scripts_basic | 918 | archprepare: archheaders archscripts prepare1 scripts_basic |
919 | 919 | ||
920 | prepare0: archprepare FORCE | 920 | prepare0: archprepare FORCE |
921 | $(Q)$(MAKE) $(build)=. | 921 | $(Q)$(MAKE) $(build)=. |
922 | 922 | ||
923 | # All the preparing.. | 923 | # All the preparing.. |
924 | prepare: prepare0 | 924 | prepare: prepare0 |
925 | 925 | ||
926 | # Generate some files | 926 | # Generate some files |
927 | # --------------------------------------------------------------------------- | 927 | # --------------------------------------------------------------------------- |
928 | 928 | ||
929 | # KERNELRELEASE can change from a few different places, meaning version.h | 929 | # KERNELRELEASE can change from a few different places, meaning version.h |
930 | # needs to be updated, so this check is forced on all builds | 930 | # needs to be updated, so this check is forced on all builds |
931 | 931 | ||
932 | uts_len := 64 | 932 | uts_len := 64 |
933 | define filechk_utsrelease.h | 933 | define filechk_utsrelease.h |
934 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ | 934 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ |
935 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ | 935 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ |
936 | exit 1; \ | 936 | exit 1; \ |
937 | fi; \ | 937 | fi; \ |
938 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) | 938 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) |
939 | endef | 939 | endef |
940 | 940 | ||
941 | define filechk_version.h | 941 | define filechk_version.h |
942 | (echo \#define LINUX_VERSION_CODE $(shell \ | 942 | (echo \#define LINUX_VERSION_CODE $(shell \ |
943 | expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ | 943 | expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ |
944 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) | 944 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) |
945 | endef | 945 | endef |
946 | 946 | ||
947 | $(version_h): $(srctree)/Makefile FORCE | 947 | $(version_h): $(srctree)/Makefile FORCE |
948 | $(call filechk,version.h) | 948 | $(call filechk,version.h) |
949 | 949 | ||
950 | include/generated/utsrelease.h: include/config/kernel.release FORCE | 950 | include/generated/utsrelease.h: include/config/kernel.release FORCE |
951 | $(call filechk,utsrelease.h) | 951 | $(call filechk,utsrelease.h) |
952 | 952 | ||
953 | PHONY += headerdep | 953 | PHONY += headerdep |
954 | headerdep: | 954 | headerdep: |
955 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ | 955 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ |
956 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include | 956 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include |
957 | 957 | ||
958 | # --------------------------------------------------------------------------- | 958 | # --------------------------------------------------------------------------- |
959 | 959 | ||
960 | PHONY += depend dep | 960 | PHONY += depend dep |
961 | depend dep: | 961 | depend dep: |
962 | @echo '*** Warning: make $@ is unnecessary now.' | 962 | @echo '*** Warning: make $@ is unnecessary now.' |
963 | 963 | ||
964 | # --------------------------------------------------------------------------- | 964 | # --------------------------------------------------------------------------- |
965 | # Firmware install | 965 | # Firmware install |
966 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware | 966 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware |
967 | export INSTALL_FW_PATH | 967 | export INSTALL_FW_PATH |
968 | 968 | ||
969 | PHONY += firmware_install | 969 | PHONY += firmware_install |
970 | firmware_install: FORCE | 970 | firmware_install: FORCE |
971 | @mkdir -p $(objtree)/firmware | 971 | @mkdir -p $(objtree)/firmware |
972 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install | 972 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install |
973 | 973 | ||
974 | # --------------------------------------------------------------------------- | 974 | # --------------------------------------------------------------------------- |
975 | # Kernel headers | 975 | # Kernel headers |
976 | 976 | ||
977 | #Default location for installed headers | 977 | #Default location for installed headers |
978 | export INSTALL_HDR_PATH = $(objtree)/usr | 978 | export INSTALL_HDR_PATH = $(objtree)/usr |
979 | 979 | ||
980 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj | 980 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj |
981 | 981 | ||
982 | # If we do an all arch process set dst to asm-$(hdr-arch) | 982 | # If we do an all arch process set dst to asm-$(hdr-arch) |
983 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) | 983 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) |
984 | 984 | ||
985 | PHONY += archheaders | 985 | PHONY += archheaders |
986 | archheaders: | 986 | archheaders: |
987 | 987 | ||
988 | PHONY += archscripts | 988 | PHONY += archscripts |
989 | archscripts: | 989 | archscripts: |
990 | 990 | ||
991 | PHONY += __headers | 991 | PHONY += __headers |
992 | __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE | 992 | __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE |
993 | $(Q)$(MAKE) $(build)=scripts build_unifdef | 993 | $(Q)$(MAKE) $(build)=scripts build_unifdef |
994 | 994 | ||
995 | PHONY += headers_install_all | 995 | PHONY += headers_install_all |
996 | headers_install_all: | 996 | headers_install_all: |
997 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install | 997 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install |
998 | 998 | ||
999 | PHONY += headers_install | 999 | PHONY += headers_install |
1000 | headers_install: __headers | 1000 | headers_install: __headers |
1001 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ | 1001 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ |
1002 | $(error Headers not exportable for the $(SRCARCH) architecture)) | 1002 | $(error Headers not exportable for the $(SRCARCH) architecture)) |
1003 | $(Q)$(MAKE) $(hdr-inst)=include/uapi | 1003 | $(Q)$(MAKE) $(hdr-inst)=include/uapi |
1004 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) | 1004 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) |
1005 | 1005 | ||
1006 | PHONY += headers_check_all | 1006 | PHONY += headers_check_all |
1007 | headers_check_all: headers_install_all | 1007 | headers_check_all: headers_install_all |
1008 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check | 1008 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check |
1009 | 1009 | ||
1010 | PHONY += headers_check | 1010 | PHONY += headers_check |
1011 | headers_check: headers_install | 1011 | headers_check: headers_install |
1012 | $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1 | 1012 | $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1 |
1013 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1 | 1013 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1 |
1014 | 1014 | ||
1015 | # --------------------------------------------------------------------------- | 1015 | # --------------------------------------------------------------------------- |
1016 | # Modules | 1016 | # Modules |
1017 | 1017 | ||
1018 | ifdef CONFIG_MODULES | 1018 | ifdef CONFIG_MODULES |
1019 | 1019 | ||
1020 | # By default, build modules as well | 1020 | # By default, build modules as well |
1021 | 1021 | ||
1022 | all: modules | 1022 | all: modules |
1023 | 1023 | ||
1024 | # Build modules | 1024 | # Build modules |
1025 | # | 1025 | # |
1026 | # A module can be listed more than once in obj-m resulting in | 1026 | # A module can be listed more than once in obj-m resulting in |
1027 | # duplicate lines in modules.order files. Those are removed | 1027 | # duplicate lines in modules.order files. Those are removed |
1028 | # using awk while concatenating to the final file. | 1028 | # using awk while concatenating to the final file. |
1029 | 1029 | ||
1030 | PHONY += modules | 1030 | PHONY += modules |
1031 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin | 1031 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin |
1032 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order | 1032 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
1033 | @$(kecho) ' Building modules, stage 2.'; | 1033 | @$(kecho) ' Building modules, stage 2.'; |
1034 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1034 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1035 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild | 1035 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
1036 | 1036 | ||
1037 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) | 1037 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) |
1038 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin | 1038 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin |
1039 | 1039 | ||
1040 | %/modules.builtin: include/config/auto.conf | 1040 | %/modules.builtin: include/config/auto.conf |
1041 | $(Q)$(MAKE) $(modbuiltin)=$* | 1041 | $(Q)$(MAKE) $(modbuiltin)=$* |
1042 | 1042 | ||
1043 | 1043 | ||
1044 | # Target to prepare building external modules | 1044 | # Target to prepare building external modules |
1045 | PHONY += modules_prepare | 1045 | PHONY += modules_prepare |
1046 | modules_prepare: prepare scripts | 1046 | modules_prepare: prepare scripts |
1047 | 1047 | ||
1048 | # Target to install modules | 1048 | # Target to install modules |
1049 | PHONY += modules_install | 1049 | PHONY += modules_install |
1050 | modules_install: _modinst_ _modinst_post | 1050 | modules_install: _modinst_ _modinst_post |
1051 | 1051 | ||
1052 | PHONY += _modinst_ | 1052 | PHONY += _modinst_ |
1053 | _modinst_: | 1053 | _modinst_: |
1054 | @rm -rf $(MODLIB)/kernel | 1054 | @rm -rf $(MODLIB)/kernel |
1055 | @rm -f $(MODLIB)/source | 1055 | @rm -f $(MODLIB)/source |
1056 | @mkdir -p $(MODLIB)/kernel | 1056 | @mkdir -p $(MODLIB)/kernel |
1057 | @ln -s $(srctree) $(MODLIB)/source | 1057 | @ln -s $(srctree) $(MODLIB)/source |
1058 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ | 1058 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ |
1059 | rm -f $(MODLIB)/build ; \ | 1059 | rm -f $(MODLIB)/build ; \ |
1060 | ln -s $(objtree) $(MODLIB)/build ; \ | 1060 | ln -s $(objtree) $(MODLIB)/build ; \ |
1061 | fi | 1061 | fi |
1062 | @cp -f $(objtree)/modules.order $(MODLIB)/ | 1062 | @cp -f $(objtree)/modules.order $(MODLIB)/ |
1063 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ | 1063 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ |
1064 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1064 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1065 | 1065 | ||
1066 | # This depmod is only for convenience to give the initial | 1066 | # This depmod is only for convenience to give the initial |
1067 | # boot a modules.dep even before / is mounted read-write. However the | 1067 | # boot a modules.dep even before / is mounted read-write. However the |
1068 | # boot script depmod is the master version. | 1068 | # boot script depmod is the master version. |
1069 | PHONY += _modinst_post | 1069 | PHONY += _modinst_post |
1070 | _modinst_post: _modinst_ | 1070 | _modinst_post: _modinst_ |
1071 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst | 1071 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
1072 | $(call cmd,depmod) | 1072 | $(call cmd,depmod) |
1073 | 1073 | ||
1074 | ifeq ($(CONFIG_MODULE_SIG), y) | 1074 | ifeq ($(CONFIG_MODULE_SIG), y) |
1075 | PHONY += modules_sign | 1075 | PHONY += modules_sign |
1076 | modules_sign: | 1076 | modules_sign: |
1077 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign | 1077 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign |
1078 | endif | 1078 | endif |
1079 | 1079 | ||
1080 | else # CONFIG_MODULES | 1080 | else # CONFIG_MODULES |
1081 | 1081 | ||
1082 | # Modules not configured | 1082 | # Modules not configured |
1083 | # --------------------------------------------------------------------------- | 1083 | # --------------------------------------------------------------------------- |
1084 | 1084 | ||
1085 | modules modules_install: FORCE | 1085 | modules modules_install: FORCE |
1086 | @echo >&2 | 1086 | @echo >&2 |
1087 | @echo >&2 "The present kernel configuration has modules disabled." | 1087 | @echo >&2 "The present kernel configuration has modules disabled." |
1088 | @echo >&2 "Type 'make config' and enable loadable module support." | 1088 | @echo >&2 "Type 'make config' and enable loadable module support." |
1089 | @echo >&2 "Then build a kernel with module support enabled." | 1089 | @echo >&2 "Then build a kernel with module support enabled." |
1090 | @echo >&2 | 1090 | @echo >&2 |
1091 | @exit 1 | 1091 | @exit 1 |
1092 | 1092 | ||
1093 | endif # CONFIG_MODULES | 1093 | endif # CONFIG_MODULES |
1094 | 1094 | ||
1095 | ### | 1095 | ### |
1096 | # Cleaning is done on three levels. | 1096 | # Cleaning is done on three levels. |
1097 | # make clean Delete most generated files | 1097 | # make clean Delete most generated files |
1098 | # Leave enough to build external modules | 1098 | # Leave enough to build external modules |
1099 | # make mrproper Delete the current configuration, and all generated files | 1099 | # make mrproper Delete the current configuration, and all generated files |
1100 | # make distclean Remove editor backup files, patch leftover files and the like | 1100 | # make distclean Remove editor backup files, patch leftover files and the like |
1101 | 1101 | ||
1102 | # Directories & files removed with 'make clean' | 1102 | # Directories & files removed with 'make clean' |
1103 | CLEAN_DIRS += $(MODVERDIR) | 1103 | CLEAN_DIRS += $(MODVERDIR) |
1104 | 1104 | ||
1105 | # Directories & files removed with 'make mrproper' | 1105 | # Directories & files removed with 'make mrproper' |
1106 | MRPROPER_DIRS += include/config usr/include include/generated \ | 1106 | MRPROPER_DIRS += include/config usr/include include/generated \ |
1107 | arch/*/include/generated .tmp_objdiff | 1107 | arch/*/include/generated .tmp_objdiff |
1108 | MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \ | 1108 | MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \ |
1109 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ | 1109 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ |
1110 | signing_key.priv signing_key.x509 x509.genkey \ | 1110 | signing_key.priv signing_key.x509 x509.genkey \ |
1111 | extra_certificates signing_key.x509.keyid \ | 1111 | extra_certificates signing_key.x509.keyid \ |
1112 | signing_key.x509.signer include/linux/version.h | 1112 | signing_key.x509.signer include/linux/version.h |
1113 | 1113 | ||
1114 | # clean - Delete most, but leave enough to build external modules | 1114 | # clean - Delete most, but leave enough to build external modules |
1115 | # | 1115 | # |
1116 | clean: rm-dirs := $(CLEAN_DIRS) | 1116 | clean: rm-dirs := $(CLEAN_DIRS) |
1117 | clean: rm-files := $(CLEAN_FILES) | 1117 | clean: rm-files := $(CLEAN_FILES) |
1118 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples) | 1118 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples) |
1119 | 1119 | ||
1120 | PHONY += $(clean-dirs) clean archclean vmlinuxclean | 1120 | PHONY += $(clean-dirs) clean archclean vmlinuxclean |
1121 | $(clean-dirs): | 1121 | $(clean-dirs): |
1122 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1122 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
1123 | 1123 | ||
1124 | vmlinuxclean: | 1124 | vmlinuxclean: |
1125 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean | 1125 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean |
1126 | 1126 | ||
1127 | clean: archclean vmlinuxclean | 1127 | clean: archclean vmlinuxclean |
1128 | 1128 | ||
1129 | # mrproper - Delete all generated files, including .config | 1129 | # mrproper - Delete all generated files, including .config |
1130 | # | 1130 | # |
1131 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) | 1131 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) |
1132 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) | 1132 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) |
1133 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) | 1133 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) |
1134 | 1134 | ||
1135 | PHONY += $(mrproper-dirs) mrproper archmrproper | 1135 | PHONY += $(mrproper-dirs) mrproper archmrproper |
1136 | $(mrproper-dirs): | 1136 | $(mrproper-dirs): |
1137 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) | 1137 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) |
1138 | 1138 | ||
1139 | mrproper: clean archmrproper $(mrproper-dirs) | 1139 | mrproper: clean archmrproper $(mrproper-dirs) |
1140 | $(call cmd,rmdirs) | 1140 | $(call cmd,rmdirs) |
1141 | $(call cmd,rmfiles) | 1141 | $(call cmd,rmfiles) |
1142 | 1142 | ||
1143 | # distclean | 1143 | # distclean |
1144 | # | 1144 | # |
1145 | PHONY += distclean | 1145 | PHONY += distclean |
1146 | 1146 | ||
1147 | distclean: mrproper | 1147 | distclean: mrproper |
1148 | @find $(srctree) $(RCS_FIND_IGNORE) \ | 1148 | @find $(srctree) $(RCS_FIND_IGNORE) \ |
1149 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ | 1149 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
1150 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ | 1150 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
1151 | -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \ | 1151 | -o -name '.*.rej' -o -name '*%' -o -name 'core' \) \ |
1152 | -type f -print | xargs rm -f | 1152 | -type f -print | xargs rm -f |
1153 | 1153 | ||
1154 | 1154 | ||
1155 | # Packaging of the kernel to various formats | 1155 | # Packaging of the kernel to various formats |
1156 | # --------------------------------------------------------------------------- | 1156 | # --------------------------------------------------------------------------- |
1157 | # rpm target kept for backward compatibility | 1157 | # rpm target kept for backward compatibility |
1158 | package-dir := $(srctree)/scripts/package | 1158 | package-dir := $(srctree)/scripts/package |
1159 | 1159 | ||
1160 | %src-pkg: FORCE | 1160 | %src-pkg: FORCE |
1161 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1161 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1162 | %pkg: include/config/kernel.release FORCE | 1162 | %pkg: include/config/kernel.release FORCE |
1163 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1163 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1164 | rpm: include/config/kernel.release FORCE | 1164 | rpm: include/config/kernel.release FORCE |
1165 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1165 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1166 | 1166 | ||
1167 | 1167 | ||
1168 | # Brief documentation of the typical targets used | 1168 | # Brief documentation of the typical targets used |
1169 | # --------------------------------------------------------------------------- | 1169 | # --------------------------------------------------------------------------- |
1170 | 1170 | ||
1171 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) | 1171 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
1172 | boards := $(notdir $(boards)) | 1172 | boards := $(notdir $(boards)) |
1173 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) | 1173 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) |
1174 | board-dirs := $(sort $(notdir $(board-dirs:/=))) | 1174 | board-dirs := $(sort $(notdir $(board-dirs:/=))) |
1175 | 1175 | ||
1176 | help: | 1176 | help: |
1177 | @echo 'Cleaning targets:' | 1177 | @echo 'Cleaning targets:' |
1178 | @echo ' clean - Remove most generated files but keep the config and' | 1178 | @echo ' clean - Remove most generated files but keep the config and' |
1179 | @echo ' enough build support to build external modules' | 1179 | @echo ' enough build support to build external modules' |
1180 | @echo ' mrproper - Remove all generated files + config + various backup files' | 1180 | @echo ' mrproper - Remove all generated files + config + various backup files' |
1181 | @echo ' distclean - mrproper + remove editor backup and patch files' | 1181 | @echo ' distclean - mrproper + remove editor backup and patch files' |
1182 | @echo '' | 1182 | @echo '' |
1183 | @echo 'Configuration targets:' | 1183 | @echo 'Configuration targets:' |
1184 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help | 1184 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help |
1185 | @echo '' | 1185 | @echo '' |
1186 | @echo 'Other generic targets:' | 1186 | @echo 'Other generic targets:' |
1187 | @echo ' all - Build all targets marked with [*]' | 1187 | @echo ' all - Build all targets marked with [*]' |
1188 | @echo '* vmlinux - Build the bare kernel' | 1188 | @echo '* vmlinux - Build the bare kernel' |
1189 | @echo '* modules - Build all modules' | 1189 | @echo '* modules - Build all modules' |
1190 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' | 1190 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
1191 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' | 1191 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' |
1192 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' | 1192 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
1193 | @echo ' dir/ - Build all files in dir and below' | 1193 | @echo ' dir/ - Build all files in dir and below' |
1194 | @echo ' dir/file.[oisS] - Build specified target only' | 1194 | @echo ' dir/file.[oisS] - Build specified target only' |
1195 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' | 1195 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' |
1196 | @echo ' (requires a recent binutils and recent build (System.map))' | 1196 | @echo ' (requires a recent binutils and recent build (System.map))' |
1197 | @echo ' dir/file.ko - Build module including final link' | 1197 | @echo ' dir/file.ko - Build module including final link' |
1198 | @echo ' modules_prepare - Set up for building external modules' | 1198 | @echo ' modules_prepare - Set up for building external modules' |
1199 | @echo ' tags/TAGS - Generate tags file for editors' | 1199 | @echo ' tags/TAGS - Generate tags file for editors' |
1200 | @echo ' cscope - Generate cscope index' | 1200 | @echo ' cscope - Generate cscope index' |
1201 | @echo ' gtags - Generate GNU GLOBAL index' | 1201 | @echo ' gtags - Generate GNU GLOBAL index' |
1202 | @echo ' kernelrelease - Output the release version string' | 1202 | @echo ' kernelrelease - Output the release version string' |
1203 | @echo ' kernelversion - Output the version stored in Makefile' | 1203 | @echo ' kernelversion - Output the version stored in Makefile' |
1204 | @echo ' image_name - Output the image name' | 1204 | @echo ' image_name - Output the image name' |
1205 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ | 1205 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
1206 | echo ' (default: $(INSTALL_HDR_PATH))'; \ | 1206 | echo ' (default: $(INSTALL_HDR_PATH))'; \ |
1207 | echo '' | 1207 | echo '' |
1208 | @echo 'Static analysers' | 1208 | @echo 'Static analysers' |
1209 | @echo ' checkstack - Generate a list of stack hogs' | 1209 | @echo ' checkstack - Generate a list of stack hogs' |
1210 | @echo ' namespacecheck - Name space analysis on compiled kernel' | 1210 | @echo ' namespacecheck - Name space analysis on compiled kernel' |
1211 | @echo ' versioncheck - Sanity check on version.h usage' | 1211 | @echo ' versioncheck - Sanity check on version.h usage' |
1212 | @echo ' includecheck - Check for duplicate included header files' | 1212 | @echo ' includecheck - Check for duplicate included header files' |
1213 | @echo ' export_report - List the usages of all exported symbols' | 1213 | @echo ' export_report - List the usages of all exported symbols' |
1214 | @echo ' headers_check - Sanity check on exported headers' | 1214 | @echo ' headers_check - Sanity check on exported headers' |
1215 | @echo ' headerdep - Detect inclusion cycles in headers' | 1215 | @echo ' headerdep - Detect inclusion cycles in headers' |
1216 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help | 1216 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help |
1217 | @echo '' | 1217 | @echo '' |
1218 | @echo 'Kernel packaging:' | 1218 | @echo 'Kernel packaging:' |
1219 | @$(MAKE) $(build)=$(package-dir) help | 1219 | @$(MAKE) $(build)=$(package-dir) help |
1220 | @echo '' | 1220 | @echo '' |
1221 | @echo 'Documentation targets:' | 1221 | @echo 'Documentation targets:' |
1222 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp | 1222 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp |
1223 | @echo '' | 1223 | @echo '' |
1224 | @echo 'Architecture specific targets ($(SRCARCH)):' | 1224 | @echo 'Architecture specific targets ($(SRCARCH)):' |
1225 | @$(if $(archhelp),$(archhelp),\ | 1225 | @$(if $(archhelp),$(archhelp),\ |
1226 | echo ' No architecture specific help defined for $(SRCARCH)') | 1226 | echo ' No architecture specific help defined for $(SRCARCH)') |
1227 | @echo '' | 1227 | @echo '' |
1228 | @$(if $(boards), \ | 1228 | @$(if $(boards), \ |
1229 | $(foreach b, $(boards), \ | 1229 | $(foreach b, $(boards), \ |
1230 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ | 1230 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ |
1231 | echo '') | 1231 | echo '') |
1232 | @$(if $(board-dirs), \ | 1232 | @$(if $(board-dirs), \ |
1233 | $(foreach b, $(board-dirs), \ | 1233 | $(foreach b, $(board-dirs), \ |
1234 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ | 1234 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ |
1235 | printf " %-16s - Show all of the above\\n" help-boards; \ | 1235 | printf " %-16s - Show all of the above\\n" help-boards; \ |
1236 | echo '') | 1236 | echo '') |
1237 | 1237 | ||
1238 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' | 1238 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
1239 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' | 1239 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
1240 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' | 1240 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
1241 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' | 1241 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' |
1242 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' | 1242 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
1243 | @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' | 1243 | @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' |
1244 | @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' | 1244 | @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' |
1245 | @echo ' 1: warnings which may be relevant and do not occur too often' | 1245 | @echo ' 1: warnings which may be relevant and do not occur too often' |
1246 | @echo ' 2: warnings which occur quite often but may still be relevant' | 1246 | @echo ' 2: warnings which occur quite often but may still be relevant' |
1247 | @echo ' 3: more obscure warnings, can most likely be ignored' | 1247 | @echo ' 3: more obscure warnings, can most likely be ignored' |
1248 | @echo ' Multiple levels can be combined with W=12 or W=123' | 1248 | @echo ' Multiple levels can be combined with W=12 or W=123' |
1249 | @echo '' | 1249 | @echo '' |
1250 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' | 1250 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' |
1251 | @echo 'For further info see the ./README file' | 1251 | @echo 'For further info see the ./README file' |
1252 | 1252 | ||
1253 | 1253 | ||
1254 | help-board-dirs := $(addprefix help-,$(board-dirs)) | 1254 | help-board-dirs := $(addprefix help-,$(board-dirs)) |
1255 | 1255 | ||
1256 | help-boards: $(help-board-dirs) | 1256 | help-boards: $(help-board-dirs) |
1257 | 1257 | ||
1258 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) | 1258 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) |
1259 | 1259 | ||
1260 | $(help-board-dirs): help-%: | 1260 | $(help-board-dirs): help-%: |
1261 | @echo 'Architecture specific targets ($(SRCARCH) $*):' | 1261 | @echo 'Architecture specific targets ($(SRCARCH) $*):' |
1262 | @$(if $(boards-per-dir), \ | 1262 | @$(if $(boards-per-dir), \ |
1263 | $(foreach b, $(boards-per-dir), \ | 1263 | $(foreach b, $(boards-per-dir), \ |
1264 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ | 1264 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ |
1265 | echo '') | 1265 | echo '') |
1266 | 1266 | ||
1267 | 1267 | ||
1268 | # Documentation targets | 1268 | # Documentation targets |
1269 | # --------------------------------------------------------------------------- | 1269 | # --------------------------------------------------------------------------- |
1270 | %docs: scripts_basic FORCE | 1270 | %docs: scripts_basic FORCE |
1271 | $(Q)$(MAKE) $(build)=scripts build_docproc | 1271 | $(Q)$(MAKE) $(build)=scripts build_docproc |
1272 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ | 1272 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ |
1273 | 1273 | ||
1274 | else # KBUILD_EXTMOD | 1274 | else # KBUILD_EXTMOD |
1275 | 1275 | ||
1276 | ### | 1276 | ### |
1277 | # External module support. | 1277 | # External module support. |
1278 | # When building external modules the kernel used as basis is considered | 1278 | # When building external modules the kernel used as basis is considered |
1279 | # read-only, and no consistency checks are made and the make | 1279 | # read-only, and no consistency checks are made and the make |
1280 | # system is not used on the basis kernel. If updates are required | 1280 | # system is not used on the basis kernel. If updates are required |
1281 | # in the basis kernel ordinary make commands (without M=...) must | 1281 | # in the basis kernel ordinary make commands (without M=...) must |
1282 | # be used. | 1282 | # be used. |
1283 | # | 1283 | # |
1284 | # The following are the only valid targets when building external | 1284 | # The following are the only valid targets when building external |
1285 | # modules. | 1285 | # modules. |
1286 | # make M=dir clean Delete all automatically generated files | 1286 | # make M=dir clean Delete all automatically generated files |
1287 | # make M=dir modules Make all modules in specified dir | 1287 | # make M=dir modules Make all modules in specified dir |
1288 | # make M=dir Same as 'make M=dir modules' | 1288 | # make M=dir Same as 'make M=dir modules' |
1289 | # make M=dir modules_install | 1289 | # make M=dir modules_install |
1290 | # Install the modules built in the module directory | 1290 | # Install the modules built in the module directory |
1291 | # Assumes install directory is already created | 1291 | # Assumes install directory is already created |
1292 | 1292 | ||
1293 | # We are always building modules | 1293 | # We are always building modules |
1294 | KBUILD_MODULES := 1 | 1294 | KBUILD_MODULES := 1 |
1295 | PHONY += crmodverdir | 1295 | PHONY += crmodverdir |
1296 | crmodverdir: | 1296 | crmodverdir: |
1297 | $(cmd_crmodverdir) | 1297 | $(cmd_crmodverdir) |
1298 | 1298 | ||
1299 | PHONY += $(objtree)/Module.symvers | 1299 | PHONY += $(objtree)/Module.symvers |
1300 | $(objtree)/Module.symvers: | 1300 | $(objtree)/Module.symvers: |
1301 | @test -e $(objtree)/Module.symvers || ( \ | 1301 | @test -e $(objtree)/Module.symvers || ( \ |
1302 | echo; \ | 1302 | echo; \ |
1303 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ | 1303 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ |
1304 | echo " is missing; modules will have no dependencies and modversions."; \ | 1304 | echo " is missing; modules will have no dependencies and modversions."; \ |
1305 | echo ) | 1305 | echo ) |
1306 | 1306 | ||
1307 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) | 1307 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) |
1308 | PHONY += $(module-dirs) modules | 1308 | PHONY += $(module-dirs) modules |
1309 | $(module-dirs): crmodverdir $(objtree)/Module.symvers | 1309 | $(module-dirs): crmodverdir $(objtree)/Module.symvers |
1310 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) | 1310 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) |
1311 | 1311 | ||
1312 | modules: $(module-dirs) | 1312 | modules: $(module-dirs) |
1313 | @$(kecho) ' Building modules, stage 2.'; | 1313 | @$(kecho) ' Building modules, stage 2.'; |
1314 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1314 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1315 | 1315 | ||
1316 | PHONY += modules_install | 1316 | PHONY += modules_install |
1317 | modules_install: _emodinst_ _emodinst_post | 1317 | modules_install: _emodinst_ _emodinst_post |
1318 | 1318 | ||
1319 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) | 1319 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) |
1320 | PHONY += _emodinst_ | 1320 | PHONY += _emodinst_ |
1321 | _emodinst_: | 1321 | _emodinst_: |
1322 | $(Q)mkdir -p $(MODLIB)/$(install-dir) | 1322 | $(Q)mkdir -p $(MODLIB)/$(install-dir) |
1323 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1323 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1324 | 1324 | ||
1325 | PHONY += _emodinst_post | 1325 | PHONY += _emodinst_post |
1326 | _emodinst_post: _emodinst_ | 1326 | _emodinst_post: _emodinst_ |
1327 | $(call cmd,depmod) | 1327 | $(call cmd,depmod) |
1328 | 1328 | ||
1329 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) | 1329 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
1330 | 1330 | ||
1331 | PHONY += $(clean-dirs) clean | 1331 | PHONY += $(clean-dirs) clean |
1332 | $(clean-dirs): | 1332 | $(clean-dirs): |
1333 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1333 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
1334 | 1334 | ||
1335 | clean: rm-dirs := $(MODVERDIR) | 1335 | clean: rm-dirs := $(MODVERDIR) |
1336 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers | 1336 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers |
1337 | 1337 | ||
1338 | help: | 1338 | help: |
1339 | @echo ' Building external modules.' | 1339 | @echo ' Building external modules.' |
1340 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' | 1340 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' |
1341 | @echo '' | 1341 | @echo '' |
1342 | @echo ' modules - default target, build the module(s)' | 1342 | @echo ' modules - default target, build the module(s)' |
1343 | @echo ' modules_install - install the module' | 1343 | @echo ' modules_install - install the module' |
1344 | @echo ' clean - remove generated files in module directory only' | 1344 | @echo ' clean - remove generated files in module directory only' |
1345 | @echo '' | 1345 | @echo '' |
1346 | 1346 | ||
1347 | # Dummies... | 1347 | # Dummies... |
1348 | PHONY += prepare scripts | 1348 | PHONY += prepare scripts |
1349 | prepare: ; | 1349 | prepare: ; |
1350 | scripts: ; | 1350 | scripts: ; |
1351 | endif # KBUILD_EXTMOD | 1351 | endif # KBUILD_EXTMOD |
1352 | 1352 | ||
1353 | clean: $(clean-dirs) | 1353 | clean: $(clean-dirs) |
1354 | $(call cmd,rmdirs) | 1354 | $(call cmd,rmdirs) |
1355 | $(call cmd,rmfiles) | 1355 | $(call cmd,rmfiles) |
1356 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ | 1356 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ |
1357 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1357 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
1358 | -o -name '*.ko.*' \ | 1358 | -o -name '*.ko.*' \ |
1359 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ | 1359 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
1360 | -o -name '*.symtypes' -o -name 'modules.order' \ | 1360 | -o -name '*.symtypes' -o -name 'modules.order' \ |
1361 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ | 1361 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ |
1362 | -o -name '*.gcno' \) -type f -print | xargs rm -f | 1362 | -o -name '*.gcno' \) -type f -print | xargs rm -f |
1363 | 1363 | ||
1364 | # Generate tags for editors | 1364 | # Generate tags for editors |
1365 | # --------------------------------------------------------------------------- | 1365 | # --------------------------------------------------------------------------- |
1366 | quiet_cmd_tags = GEN $@ | 1366 | quiet_cmd_tags = GEN $@ |
1367 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ | 1367 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ |
1368 | 1368 | ||
1369 | tags TAGS cscope gtags: FORCE | 1369 | tags TAGS cscope gtags: FORCE |
1370 | $(call cmd,tags) | 1370 | $(call cmd,tags) |
1371 | 1371 | ||
1372 | # Scripts to check various things for consistency | 1372 | # Scripts to check various things for consistency |
1373 | # --------------------------------------------------------------------------- | 1373 | # --------------------------------------------------------------------------- |
1374 | 1374 | ||
1375 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report | 1375 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report |
1376 | 1376 | ||
1377 | includecheck: | 1377 | includecheck: |
1378 | find $(srctree)/* $(RCS_FIND_IGNORE) \ | 1378 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
1379 | -name '*.[hcS]' -type f -print | sort \ | 1379 | -name '*.[hcS]' -type f -print | sort \ |
1380 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl | 1380 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
1381 | 1381 | ||
1382 | versioncheck: | 1382 | versioncheck: |
1383 | find $(srctree)/* $(RCS_FIND_IGNORE) \ | 1383 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
1384 | -name '*.[hcS]' -type f -print | sort \ | 1384 | -name '*.[hcS]' -type f -print | sort \ |
1385 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl | 1385 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
1386 | 1386 | ||
1387 | coccicheck: | 1387 | coccicheck: |
1388 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ | 1388 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ |
1389 | 1389 | ||
1390 | namespacecheck: | 1390 | namespacecheck: |
1391 | $(PERL) $(srctree)/scripts/namespace.pl | 1391 | $(PERL) $(srctree)/scripts/namespace.pl |
1392 | 1392 | ||
1393 | export_report: | 1393 | export_report: |
1394 | $(PERL) $(srctree)/scripts/export_report.pl | 1394 | $(PERL) $(srctree)/scripts/export_report.pl |
1395 | 1395 | ||
1396 | endif #ifeq ($(config-targets),1) | 1396 | endif #ifeq ($(config-targets),1) |
1397 | endif #ifeq ($(mixed-targets),1) | 1397 | endif #ifeq ($(mixed-targets),1) |
1398 | 1398 | ||
1399 | PHONY += checkstack kernelrelease kernelversion image_name | 1399 | PHONY += checkstack kernelrelease kernelversion image_name |
1400 | 1400 | ||
1401 | # UML needs a little special treatment here. It wants to use the host | 1401 | # UML needs a little special treatment here. It wants to use the host |
1402 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone | 1402 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone |
1403 | # else wants $(ARCH), including people doing cross-builds, which means | 1403 | # else wants $(ARCH), including people doing cross-builds, which means |
1404 | # that $(SUBARCH) doesn't work here. | 1404 | # that $(SUBARCH) doesn't work here. |
1405 | ifeq ($(ARCH), um) | 1405 | ifeq ($(ARCH), um) |
1406 | CHECKSTACK_ARCH := $(SUBARCH) | 1406 | CHECKSTACK_ARCH := $(SUBARCH) |
1407 | else | 1407 | else |
1408 | CHECKSTACK_ARCH := $(ARCH) | 1408 | CHECKSTACK_ARCH := $(ARCH) |
1409 | endif | 1409 | endif |
1410 | checkstack: | 1410 | checkstack: |
1411 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ | 1411 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
1412 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) | 1412 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
1413 | 1413 | ||
1414 | kernelrelease: | 1414 | kernelrelease: |
1415 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" | 1415 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
1416 | 1416 | ||
1417 | kernelversion: | 1417 | kernelversion: |
1418 | @echo $(KERNELVERSION) | 1418 | @echo $(KERNELVERSION) |
1419 | 1419 | ||
1420 | image_name: | 1420 | image_name: |
1421 | @echo $(KBUILD_IMAGE) | 1421 | @echo $(KBUILD_IMAGE) |
1422 | 1422 | ||
1423 | # Clear a bunch of variables before executing the submake | 1423 | # Clear a bunch of variables before executing the submake |
1424 | tools/: FORCE | 1424 | tools/: FORCE |
1425 | $(Q)mkdir -p $(objtree)/tools | 1425 | $(Q)mkdir -p $(objtree)/tools |
1426 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ | 1426 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ |
1427 | 1427 | ||
1428 | tools/%: FORCE | 1428 | tools/%: FORCE |
1429 | $(Q)mkdir -p $(objtree)/tools | 1429 | $(Q)mkdir -p $(objtree)/tools |
1430 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $* | 1430 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $* |
1431 | 1431 | ||
1432 | # Single targets | 1432 | # Single targets |
1433 | # --------------------------------------------------------------------------- | 1433 | # --------------------------------------------------------------------------- |
1434 | # Single targets are compatible with: | 1434 | # Single targets are compatible with: |
1435 | # - build with mixed source and output | 1435 | # - build with mixed source and output |
1436 | # - build with separate output dir 'make O=...' | 1436 | # - build with separate output dir 'make O=...' |
1437 | # - external modules | 1437 | # - external modules |
1438 | # | 1438 | # |
1439 | # target-dir => where to store outputfile | 1439 | # target-dir => where to store outputfile |
1440 | # build-dir => directory in kernel source tree to use | 1440 | # build-dir => directory in kernel source tree to use |
1441 | 1441 | ||
1442 | ifeq ($(KBUILD_EXTMOD),) | 1442 | ifeq ($(KBUILD_EXTMOD),) |
1443 | build-dir = $(patsubst %/,%,$(dir $@)) | 1443 | build-dir = $(patsubst %/,%,$(dir $@)) |
1444 | target-dir = $(dir $@) | 1444 | target-dir = $(dir $@) |
1445 | else | 1445 | else |
1446 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) | 1446 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) |
1447 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) | 1447 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) |
1448 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) | 1448 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) |
1449 | endif | 1449 | endif |
1450 | 1450 | ||
1451 | %.s: %.c prepare scripts FORCE | 1451 | %.s: %.c prepare scripts FORCE |
1452 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1452 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1453 | %.i: %.c prepare scripts FORCE | 1453 | %.i: %.c prepare scripts FORCE |
1454 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1454 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1455 | %.o: %.c prepare scripts FORCE | 1455 | %.o: %.c prepare scripts FORCE |
1456 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1456 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1457 | %.lst: %.c prepare scripts FORCE | 1457 | %.lst: %.c prepare scripts FORCE |
1458 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1458 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1459 | %.s: %.S prepare scripts FORCE | 1459 | %.s: %.S prepare scripts FORCE |
1460 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1460 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1461 | %.o: %.S prepare scripts FORCE | 1461 | %.o: %.S prepare scripts FORCE |
1462 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1462 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1463 | %.symtypes: %.c prepare scripts FORCE | 1463 | %.symtypes: %.c prepare scripts FORCE |
1464 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1464 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1465 | 1465 | ||
1466 | # Modules | 1466 | # Modules |
1467 | /: prepare scripts FORCE | 1467 | /: prepare scripts FORCE |
1468 | $(cmd_crmodverdir) | 1468 | $(cmd_crmodverdir) |
1469 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1469 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1470 | $(build)=$(build-dir) | 1470 | $(build)=$(build-dir) |
1471 | %/: prepare scripts FORCE | 1471 | %/: prepare scripts FORCE |
1472 | $(cmd_crmodverdir) | 1472 | $(cmd_crmodverdir) |
1473 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1473 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1474 | $(build)=$(build-dir) | 1474 | $(build)=$(build-dir) |
1475 | %.ko: prepare scripts FORCE | 1475 | %.ko: prepare scripts FORCE |
1476 | $(cmd_crmodverdir) | 1476 | $(cmd_crmodverdir) |
1477 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1477 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1478 | $(build)=$(build-dir) $(@:.ko=.o) | 1478 | $(build)=$(build-dir) $(@:.ko=.o) |
1479 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1479 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1480 | 1480 | ||
1481 | # FIXME Should go into a make.lib or something | 1481 | # FIXME Should go into a make.lib or something |
1482 | # =========================================================================== | 1482 | # =========================================================================== |
1483 | 1483 | ||
1484 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) | 1484 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) |
1485 | cmd_rmdirs = rm -rf $(rm-dirs) | 1485 | cmd_rmdirs = rm -rf $(rm-dirs) |
1486 | 1486 | ||
1487 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) | 1487 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) |
1488 | cmd_rmfiles = rm -f $(rm-files) | 1488 | cmd_rmfiles = rm -f $(rm-files) |
1489 | 1489 | ||
1490 | # Run depmod only if we have System.map and depmod is executable | 1490 | # Run depmod only if we have System.map and depmod is executable |
1491 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) | 1491 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) |
1492 | cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ | 1492 | cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ |
1493 | $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))" | 1493 | $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))" |
1494 | 1494 | ||
1495 | # Create temporary dir for module support files | 1495 | # Create temporary dir for module support files |
1496 | # clean it up only when building all modules | 1496 | # clean it up only when building all modules |
1497 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ | 1497 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ |
1498 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) | 1498 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
1499 | 1499 | ||
1500 | # read all saved command lines | 1500 | # read all saved command lines |
1501 | 1501 | ||
1502 | targets := $(wildcard $(sort $(targets))) | 1502 | targets := $(wildcard $(sort $(targets))) |
1503 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | 1503 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) |
1504 | 1504 | ||
1505 | ifneq ($(cmd_files),) | 1505 | ifneq ($(cmd_files),) |
1506 | $(cmd_files): ; # Do not try to update included dependency files | 1506 | $(cmd_files): ; # Do not try to update included dependency files |
1507 | include $(cmd_files) | 1507 | include $(cmd_files) |
1508 | endif | 1508 | endif |
1509 | 1509 | ||
1510 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir | 1510 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir |
1511 | # Usage: | 1511 | # Usage: |
1512 | # $(Q)$(MAKE) $(clean)=dir | 1512 | # $(Q)$(MAKE) $(clean)=dir |
1513 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj | 1513 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj |
1514 | 1514 | ||
1515 | endif # skip-makefile | 1515 | endif # skip-makefile |
1516 | 1516 | ||
1517 | PHONY += FORCE | 1517 | PHONY += FORCE |
1518 | FORCE: | 1518 | FORCE: |
1519 | 1519 | ||
1520 | # Declare the contents of the .PHONY variable as phony. We keep that | 1520 | # Declare the contents of the .PHONY variable as phony. We keep that |
1521 | # information in a variable so we can use it in if_changed and friends. | 1521 | # information in a variable so we can use it in if_changed and friends. |
1522 | .PHONY: $(PHONY) | 1522 | .PHONY: $(PHONY) |
1523 | 1523 |