Commit 07a2039b8eb0af4ff464efd3dfd95de5c02648c6
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96050dfb25
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Linux 2.6.30
Showing 1 changed file with 1 additions and 1 deletions Inline Diff
Makefile
1 | VERSION = 2 | 1 | VERSION = 2 |
2 | PATCHLEVEL = 6 | 2 | PATCHLEVEL = 6 |
3 | SUBLEVEL = 30 | 3 | SUBLEVEL = 30 |
4 | EXTRAVERSION = -rc8 | 4 | EXTRAVERSION = |
5 | NAME = Man-Eating Seals of Antiquity | 5 | NAME = Man-Eating Seals of Antiquity |
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 | # We are using a recursive build, so we need to do a little thinking | 19 | # We are using a recursive build, so we need to do a little thinking |
20 | # to get the ordering right. | 20 | # to get the ordering right. |
21 | # | 21 | # |
22 | # Most importantly: sub-Makefiles should only ever modify files in | 22 | # Most importantly: sub-Makefiles should only ever modify files in |
23 | # their own directory. If in some directory we have a dependency on | 23 | # their own directory. If in some directory we have a dependency on |
24 | # a file in another dir (which doesn't happen often, but it's often | 24 | # a file in another dir (which doesn't happen often, but it's often |
25 | # unavoidable when linking the built-in.o targets which finally | 25 | # unavoidable when linking the built-in.o targets which finally |
26 | # turn into vmlinux), we will call a sub make in that other dir, and | 26 | # turn into vmlinux), we will call a sub make in that other dir, and |
27 | # after that we are sure that everything which is in that other dir | 27 | # after that we are sure that everything which is in that other dir |
28 | # is now up to date. | 28 | # is now up to date. |
29 | # | 29 | # |
30 | # The only cases where we need to modify files which have global | 30 | # The only cases where we need to modify files which have global |
31 | # effects are thus separated out and done before the recursive | 31 | # effects are thus separated out and done before the recursive |
32 | # descending is started. They are now explicitly listed as the | 32 | # descending is started. They are now explicitly listed as the |
33 | # prepare rule. | 33 | # prepare rule. |
34 | 34 | ||
35 | # To put more focus on warnings, be less verbose as default | 35 | # To put more focus on warnings, be less verbose as default |
36 | # Use 'make V=1' to see the full commands | 36 | # Use 'make V=1' to see the full commands |
37 | 37 | ||
38 | ifdef V | 38 | ifdef V |
39 | ifeq ("$(origin V)", "command line") | 39 | ifeq ("$(origin V)", "command line") |
40 | KBUILD_VERBOSE = $(V) | 40 | KBUILD_VERBOSE = $(V) |
41 | endif | 41 | endif |
42 | endif | 42 | endif |
43 | ifndef KBUILD_VERBOSE | 43 | ifndef KBUILD_VERBOSE |
44 | KBUILD_VERBOSE = 0 | 44 | KBUILD_VERBOSE = 0 |
45 | endif | 45 | endif |
46 | 46 | ||
47 | # Call a source code checker (by default, "sparse") as part of the | 47 | # Call a source code checker (by default, "sparse") as part of the |
48 | # C compilation. | 48 | # C compilation. |
49 | # | 49 | # |
50 | # Use 'make C=1' to enable checking of only re-compiled files. | 50 | # Use 'make C=1' to enable checking of only re-compiled files. |
51 | # Use 'make C=2' to enable checking of *all* source files, regardless | 51 | # Use 'make C=2' to enable checking of *all* source files, regardless |
52 | # of whether they are re-compiled or not. | 52 | # of whether they are re-compiled or not. |
53 | # | 53 | # |
54 | # See the file "Documentation/sparse.txt" for more details, including | 54 | # See the file "Documentation/sparse.txt" for more details, including |
55 | # where to get the "sparse" utility. | 55 | # where to get the "sparse" utility. |
56 | 56 | ||
57 | ifdef C | 57 | ifdef C |
58 | ifeq ("$(origin C)", "command line") | 58 | ifeq ("$(origin C)", "command line") |
59 | KBUILD_CHECKSRC = $(C) | 59 | KBUILD_CHECKSRC = $(C) |
60 | endif | 60 | endif |
61 | endif | 61 | endif |
62 | ifndef KBUILD_CHECKSRC | 62 | ifndef KBUILD_CHECKSRC |
63 | KBUILD_CHECKSRC = 0 | 63 | KBUILD_CHECKSRC = 0 |
64 | endif | 64 | endif |
65 | 65 | ||
66 | # Use make M=dir to specify directory of external module to build | 66 | # Use make M=dir to specify directory of external module to build |
67 | # Old syntax make ... SUBDIRS=$PWD is still supported | 67 | # Old syntax make ... SUBDIRS=$PWD is still supported |
68 | # Setting the environment variable KBUILD_EXTMOD take precedence | 68 | # Setting the environment variable KBUILD_EXTMOD take precedence |
69 | ifdef SUBDIRS | 69 | ifdef SUBDIRS |
70 | KBUILD_EXTMOD ?= $(SUBDIRS) | 70 | KBUILD_EXTMOD ?= $(SUBDIRS) |
71 | endif | 71 | endif |
72 | ifdef M | 72 | ifdef M |
73 | ifeq ("$(origin M)", "command line") | 73 | ifeq ("$(origin M)", "command line") |
74 | KBUILD_EXTMOD := $(M) | 74 | KBUILD_EXTMOD := $(M) |
75 | endif | 75 | endif |
76 | endif | 76 | endif |
77 | 77 | ||
78 | 78 | ||
79 | # kbuild supports saving output files in a separate directory. | 79 | # kbuild supports saving output files in a separate directory. |
80 | # To locate output files in a separate directory two syntaxes are supported. | 80 | # To locate output files in a separate directory two syntaxes are supported. |
81 | # In both cases the working directory must be the root of the kernel src. | 81 | # In both cases the working directory must be the root of the kernel src. |
82 | # 1) O= | 82 | # 1) O= |
83 | # Use "make O=dir/to/store/output/files/" | 83 | # Use "make O=dir/to/store/output/files/" |
84 | # | 84 | # |
85 | # 2) Set KBUILD_OUTPUT | 85 | # 2) Set KBUILD_OUTPUT |
86 | # Set the environment variable KBUILD_OUTPUT to point to the directory | 86 | # Set the environment variable KBUILD_OUTPUT to point to the directory |
87 | # where the output files shall be placed. | 87 | # where the output files shall be placed. |
88 | # export KBUILD_OUTPUT=dir/to/store/output/files/ | 88 | # export KBUILD_OUTPUT=dir/to/store/output/files/ |
89 | # make | 89 | # make |
90 | # | 90 | # |
91 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment | 91 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment |
92 | # variable. | 92 | # variable. |
93 | 93 | ||
94 | 94 | ||
95 | # KBUILD_SRC is set on invocation of make in OBJ directory | 95 | # KBUILD_SRC is set on invocation of make in OBJ directory |
96 | # KBUILD_SRC is not intended to be used by the regular user (for now) | 96 | # KBUILD_SRC is not intended to be used by the regular user (for now) |
97 | ifeq ($(KBUILD_SRC),) | 97 | ifeq ($(KBUILD_SRC),) |
98 | 98 | ||
99 | # OK, Make called in directory where kernel src resides | 99 | # OK, Make called in directory where kernel src resides |
100 | # Do we want to locate output files in a separate directory? | 100 | # Do we want to locate output files in a separate directory? |
101 | ifdef O | 101 | ifdef O |
102 | ifeq ("$(origin O)", "command line") | 102 | ifeq ("$(origin O)", "command line") |
103 | KBUILD_OUTPUT := $(O) | 103 | KBUILD_OUTPUT := $(O) |
104 | endif | 104 | endif |
105 | endif | 105 | endif |
106 | 106 | ||
107 | # That's our default target when none is given on the command line | 107 | # That's our default target when none is given on the command line |
108 | PHONY := _all | 108 | PHONY := _all |
109 | _all: | 109 | _all: |
110 | 110 | ||
111 | # Cancel implicit rules on top Makefile | 111 | # Cancel implicit rules on top Makefile |
112 | $(CURDIR)/Makefile Makefile: ; | 112 | $(CURDIR)/Makefile Makefile: ; |
113 | 113 | ||
114 | ifneq ($(KBUILD_OUTPUT),) | 114 | ifneq ($(KBUILD_OUTPUT),) |
115 | # Invoke a second make in the output directory, passing relevant variables | 115 | # Invoke a second make in the output directory, passing relevant variables |
116 | # check that the output directory actually exists | 116 | # check that the output directory actually exists |
117 | saved-output := $(KBUILD_OUTPUT) | 117 | saved-output := $(KBUILD_OUTPUT) |
118 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) | 118 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) |
119 | $(if $(KBUILD_OUTPUT),, \ | 119 | $(if $(KBUILD_OUTPUT),, \ |
120 | $(error output directory "$(saved-output)" does not exist)) | 120 | $(error output directory "$(saved-output)" does not exist)) |
121 | 121 | ||
122 | PHONY += $(MAKECMDGOALS) sub-make | 122 | PHONY += $(MAKECMDGOALS) sub-make |
123 | 123 | ||
124 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make | 124 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make |
125 | $(Q)@: | 125 | $(Q)@: |
126 | 126 | ||
127 | sub-make: FORCE | 127 | sub-make: FORCE |
128 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ | 128 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ |
129 | KBUILD_SRC=$(CURDIR) \ | 129 | KBUILD_SRC=$(CURDIR) \ |
130 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ | 130 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ |
131 | $(filter-out _all sub-make,$(MAKECMDGOALS)) | 131 | $(filter-out _all sub-make,$(MAKECMDGOALS)) |
132 | 132 | ||
133 | # Leave processing to above invocation of make | 133 | # Leave processing to above invocation of make |
134 | skip-makefile := 1 | 134 | skip-makefile := 1 |
135 | endif # ifneq ($(KBUILD_OUTPUT),) | 135 | endif # ifneq ($(KBUILD_OUTPUT),) |
136 | endif # ifeq ($(KBUILD_SRC),) | 136 | endif # ifeq ($(KBUILD_SRC),) |
137 | 137 | ||
138 | # We process the rest of the Makefile if this is the final invocation of make | 138 | # We process the rest of the Makefile if this is the final invocation of make |
139 | ifeq ($(skip-makefile),) | 139 | ifeq ($(skip-makefile),) |
140 | 140 | ||
141 | # If building an external module we do not care about the all: rule | 141 | # If building an external module we do not care about the all: rule |
142 | # but instead _all depend on modules | 142 | # but instead _all depend on modules |
143 | PHONY += all | 143 | PHONY += all |
144 | ifeq ($(KBUILD_EXTMOD),) | 144 | ifeq ($(KBUILD_EXTMOD),) |
145 | _all: all | 145 | _all: all |
146 | else | 146 | else |
147 | _all: modules | 147 | _all: modules |
148 | endif | 148 | endif |
149 | 149 | ||
150 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) | 150 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) |
151 | TOPDIR := $(srctree) | 151 | TOPDIR := $(srctree) |
152 | # FIXME - TOPDIR is obsolete, use srctree/objtree | 152 | # FIXME - TOPDIR is obsolete, use srctree/objtree |
153 | objtree := $(CURDIR) | 153 | objtree := $(CURDIR) |
154 | src := $(srctree) | 154 | src := $(srctree) |
155 | obj := $(objtree) | 155 | obj := $(objtree) |
156 | 156 | ||
157 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) | 157 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) |
158 | 158 | ||
159 | export srctree objtree VPATH TOPDIR | 159 | export srctree objtree VPATH TOPDIR |
160 | 160 | ||
161 | 161 | ||
162 | # SUBARCH tells the usermode build what the underlying arch is. That is set | 162 | # SUBARCH tells the usermode build what the underlying arch is. That is set |
163 | # first, and if a usermode build is happening, the "ARCH=um" on the command | 163 | # first, and if a usermode build is happening, the "ARCH=um" on the command |
164 | # line overrides the setting of ARCH below. If a native build is happening, | 164 | # line overrides the setting of ARCH below. If a native build is happening, |
165 | # then ARCH is assigned, getting whatever value it gets normally, and | 165 | # then ARCH is assigned, getting whatever value it gets normally, and |
166 | # SUBARCH is subsequently ignored. | 166 | # SUBARCH is subsequently ignored. |
167 | 167 | ||
168 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ | 168 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ |
169 | -e s/arm.*/arm/ -e s/sa110/arm/ \ | 169 | -e s/arm.*/arm/ -e s/sa110/arm/ \ |
170 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ | 170 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ |
171 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ | 171 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ |
172 | -e s/sh[234].*/sh/ ) | 172 | -e s/sh[234].*/sh/ ) |
173 | 173 | ||
174 | # Cross compiling and selecting different set of gcc/bin-utils | 174 | # Cross compiling and selecting different set of gcc/bin-utils |
175 | # --------------------------------------------------------------------------- | 175 | # --------------------------------------------------------------------------- |
176 | # | 176 | # |
177 | # When performing cross compilation for other architectures ARCH shall be set | 177 | # When performing cross compilation for other architectures ARCH shall be set |
178 | # to the target architecture. (See arch/* for the possibilities). | 178 | # to the target architecture. (See arch/* for the possibilities). |
179 | # ARCH can be set during invocation of make: | 179 | # ARCH can be set during invocation of make: |
180 | # make ARCH=ia64 | 180 | # make ARCH=ia64 |
181 | # Another way is to have ARCH set in the environment. | 181 | # Another way is to have ARCH set in the environment. |
182 | # The default ARCH is the host where make is executed. | 182 | # The default ARCH is the host where make is executed. |
183 | 183 | ||
184 | # CROSS_COMPILE specify the prefix used for all executables used | 184 | # CROSS_COMPILE specify the prefix used for all executables used |
185 | # during compilation. Only gcc and related bin-utils executables | 185 | # during compilation. Only gcc and related bin-utils executables |
186 | # are prefixed with $(CROSS_COMPILE). | 186 | # are prefixed with $(CROSS_COMPILE). |
187 | # CROSS_COMPILE can be set on the command line | 187 | # CROSS_COMPILE can be set on the command line |
188 | # make CROSS_COMPILE=ia64-linux- | 188 | # make CROSS_COMPILE=ia64-linux- |
189 | # Alternatively CROSS_COMPILE can be set in the environment. | 189 | # Alternatively CROSS_COMPILE can be set in the environment. |
190 | # Default value for CROSS_COMPILE is not to prefix executables | 190 | # Default value for CROSS_COMPILE is not to prefix executables |
191 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile | 191 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile |
192 | export KBUILD_BUILDHOST := $(SUBARCH) | 192 | export KBUILD_BUILDHOST := $(SUBARCH) |
193 | ARCH ?= $(SUBARCH) | 193 | ARCH ?= $(SUBARCH) |
194 | CROSS_COMPILE ?= | 194 | CROSS_COMPILE ?= |
195 | 195 | ||
196 | # Architecture as present in compile.h | 196 | # Architecture as present in compile.h |
197 | UTS_MACHINE := $(ARCH) | 197 | UTS_MACHINE := $(ARCH) |
198 | SRCARCH := $(ARCH) | 198 | SRCARCH := $(ARCH) |
199 | 199 | ||
200 | # Additional ARCH settings for x86 | 200 | # Additional ARCH settings for x86 |
201 | ifeq ($(ARCH),i386) | 201 | ifeq ($(ARCH),i386) |
202 | SRCARCH := x86 | 202 | SRCARCH := x86 |
203 | endif | 203 | endif |
204 | ifeq ($(ARCH),x86_64) | 204 | ifeq ($(ARCH),x86_64) |
205 | SRCARCH := x86 | 205 | SRCARCH := x86 |
206 | endif | 206 | endif |
207 | 207 | ||
208 | # Additional ARCH settings for sparc | 208 | # Additional ARCH settings for sparc |
209 | ifeq ($(ARCH),sparc64) | 209 | ifeq ($(ARCH),sparc64) |
210 | SRCARCH := sparc | 210 | SRCARCH := sparc |
211 | endif | 211 | endif |
212 | 212 | ||
213 | # Additional ARCH settings for sh | 213 | # Additional ARCH settings for sh |
214 | ifeq ($(ARCH),sh64) | 214 | ifeq ($(ARCH),sh64) |
215 | SRCARCH := sh | 215 | SRCARCH := sh |
216 | endif | 216 | endif |
217 | 217 | ||
218 | # Where to locate arch specific headers | 218 | # Where to locate arch specific headers |
219 | hdr-arch := $(SRCARCH) | 219 | hdr-arch := $(SRCARCH) |
220 | 220 | ||
221 | ifeq ($(ARCH),m68knommu) | 221 | ifeq ($(ARCH),m68knommu) |
222 | hdr-arch := m68k | 222 | hdr-arch := m68k |
223 | endif | 223 | endif |
224 | 224 | ||
225 | KCONFIG_CONFIG ?= .config | 225 | KCONFIG_CONFIG ?= .config |
226 | 226 | ||
227 | # SHELL used by kbuild | 227 | # SHELL used by kbuild |
228 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ | 228 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ |
229 | else if [ -x /bin/bash ]; then echo /bin/bash; \ | 229 | else if [ -x /bin/bash ]; then echo /bin/bash; \ |
230 | else echo sh; fi ; fi) | 230 | else echo sh; fi ; fi) |
231 | 231 | ||
232 | HOSTCC = gcc | 232 | HOSTCC = gcc |
233 | HOSTCXX = g++ | 233 | HOSTCXX = g++ |
234 | HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer | 234 | HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer |
235 | HOSTCXXFLAGS = -O2 | 235 | HOSTCXXFLAGS = -O2 |
236 | 236 | ||
237 | # Decide whether to build built-in, modular, or both. | 237 | # Decide whether to build built-in, modular, or both. |
238 | # Normally, just do built-in. | 238 | # Normally, just do built-in. |
239 | 239 | ||
240 | KBUILD_MODULES := | 240 | KBUILD_MODULES := |
241 | KBUILD_BUILTIN := 1 | 241 | KBUILD_BUILTIN := 1 |
242 | 242 | ||
243 | # If we have only "make modules", don't compile built-in objects. | 243 | # If we have only "make modules", don't compile built-in objects. |
244 | # When we're building modules with modversions, we need to consider | 244 | # When we're building modules with modversions, we need to consider |
245 | # the built-in objects during the descend as well, in order to | 245 | # the built-in objects during the descend as well, in order to |
246 | # make sure the checksums are up to date before we record them. | 246 | # make sure the checksums are up to date before we record them. |
247 | 247 | ||
248 | ifeq ($(MAKECMDGOALS),modules) | 248 | ifeq ($(MAKECMDGOALS),modules) |
249 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) | 249 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) |
250 | endif | 250 | endif |
251 | 251 | ||
252 | # If we have "make <whatever> modules", compile modules | 252 | # If we have "make <whatever> modules", compile modules |
253 | # in addition to whatever we do anyway. | 253 | # in addition to whatever we do anyway. |
254 | # Just "make" or "make all" shall build modules as well | 254 | # Just "make" or "make all" shall build modules as well |
255 | 255 | ||
256 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) | 256 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) |
257 | KBUILD_MODULES := 1 | 257 | KBUILD_MODULES := 1 |
258 | endif | 258 | endif |
259 | 259 | ||
260 | ifeq ($(MAKECMDGOALS),) | 260 | ifeq ($(MAKECMDGOALS),) |
261 | KBUILD_MODULES := 1 | 261 | KBUILD_MODULES := 1 |
262 | endif | 262 | endif |
263 | 263 | ||
264 | export KBUILD_MODULES KBUILD_BUILTIN | 264 | export KBUILD_MODULES KBUILD_BUILTIN |
265 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD | 265 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD |
266 | 266 | ||
267 | # Beautify output | 267 | # Beautify output |
268 | # --------------------------------------------------------------------------- | 268 | # --------------------------------------------------------------------------- |
269 | # | 269 | # |
270 | # Normally, we echo the whole command before executing it. By making | 270 | # Normally, we echo the whole command before executing it. By making |
271 | # that echo $($(quiet)$(cmd)), we now have the possibility to set | 271 | # that echo $($(quiet)$(cmd)), we now have the possibility to set |
272 | # $(quiet) to choose other forms of output instead, e.g. | 272 | # $(quiet) to choose other forms of output instead, e.g. |
273 | # | 273 | # |
274 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ | 274 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ |
275 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< | 275 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< |
276 | # | 276 | # |
277 | # If $(quiet) is empty, the whole command will be printed. | 277 | # If $(quiet) is empty, the whole command will be printed. |
278 | # If it is set to "quiet_", only the short version will be printed. | 278 | # If it is set to "quiet_", only the short version will be printed. |
279 | # If it is set to "silent_", nothing will be printed at all, since | 279 | # If it is set to "silent_", nothing will be printed at all, since |
280 | # the variable $(silent_cmd_cc_o_c) doesn't exist. | 280 | # the variable $(silent_cmd_cc_o_c) doesn't exist. |
281 | # | 281 | # |
282 | # A simple variant is to prefix commands with $(Q) - that's useful | 282 | # A simple variant is to prefix commands with $(Q) - that's useful |
283 | # for commands that shall be hidden in non-verbose mode. | 283 | # for commands that shall be hidden in non-verbose mode. |
284 | # | 284 | # |
285 | # $(Q)ln $@ :< | 285 | # $(Q)ln $@ :< |
286 | # | 286 | # |
287 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. | 287 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. |
288 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. | 288 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. |
289 | 289 | ||
290 | ifeq ($(KBUILD_VERBOSE),1) | 290 | ifeq ($(KBUILD_VERBOSE),1) |
291 | quiet = | 291 | quiet = |
292 | Q = | 292 | Q = |
293 | else | 293 | else |
294 | quiet=quiet_ | 294 | quiet=quiet_ |
295 | Q = @ | 295 | Q = @ |
296 | endif | 296 | endif |
297 | 297 | ||
298 | # If the user is running make -s (silent mode), suppress echoing of | 298 | # If the user is running make -s (silent mode), suppress echoing of |
299 | # commands | 299 | # commands |
300 | 300 | ||
301 | ifneq ($(findstring s,$(MAKEFLAGS)),) | 301 | ifneq ($(findstring s,$(MAKEFLAGS)),) |
302 | quiet=silent_ | 302 | quiet=silent_ |
303 | endif | 303 | endif |
304 | 304 | ||
305 | export quiet Q KBUILD_VERBOSE | 305 | export quiet Q KBUILD_VERBOSE |
306 | 306 | ||
307 | 307 | ||
308 | # Look for make include files relative to root of kernel src | 308 | # Look for make include files relative to root of kernel src |
309 | MAKEFLAGS += --include-dir=$(srctree) | 309 | MAKEFLAGS += --include-dir=$(srctree) |
310 | 310 | ||
311 | # We need some generic definitions (do not try to remake the file). | 311 | # We need some generic definitions (do not try to remake the file). |
312 | $(srctree)/scripts/Kbuild.include: ; | 312 | $(srctree)/scripts/Kbuild.include: ; |
313 | include $(srctree)/scripts/Kbuild.include | 313 | include $(srctree)/scripts/Kbuild.include |
314 | 314 | ||
315 | # Make variables (CC, etc...) | 315 | # Make variables (CC, etc...) |
316 | 316 | ||
317 | AS = $(CROSS_COMPILE)as | 317 | AS = $(CROSS_COMPILE)as |
318 | LD = $(CROSS_COMPILE)ld | 318 | LD = $(CROSS_COMPILE)ld |
319 | CC = $(CROSS_COMPILE)gcc | 319 | CC = $(CROSS_COMPILE)gcc |
320 | CPP = $(CC) -E | 320 | CPP = $(CC) -E |
321 | AR = $(CROSS_COMPILE)ar | 321 | AR = $(CROSS_COMPILE)ar |
322 | NM = $(CROSS_COMPILE)nm | 322 | NM = $(CROSS_COMPILE)nm |
323 | STRIP = $(CROSS_COMPILE)strip | 323 | STRIP = $(CROSS_COMPILE)strip |
324 | OBJCOPY = $(CROSS_COMPILE)objcopy | 324 | OBJCOPY = $(CROSS_COMPILE)objcopy |
325 | OBJDUMP = $(CROSS_COMPILE)objdump | 325 | OBJDUMP = $(CROSS_COMPILE)objdump |
326 | AWK = awk | 326 | AWK = awk |
327 | GENKSYMS = scripts/genksyms/genksyms | 327 | GENKSYMS = scripts/genksyms/genksyms |
328 | DEPMOD = /sbin/depmod | 328 | DEPMOD = /sbin/depmod |
329 | KALLSYMS = scripts/kallsyms | 329 | KALLSYMS = scripts/kallsyms |
330 | PERL = perl | 330 | PERL = perl |
331 | CHECK = sparse | 331 | CHECK = sparse |
332 | 332 | ||
333 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ | 333 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ |
334 | -Wbitwise -Wno-return-void $(CF) | 334 | -Wbitwise -Wno-return-void $(CF) |
335 | MODFLAGS = -DMODULE | 335 | MODFLAGS = -DMODULE |
336 | CFLAGS_MODULE = $(MODFLAGS) | 336 | CFLAGS_MODULE = $(MODFLAGS) |
337 | AFLAGS_MODULE = $(MODFLAGS) | 337 | AFLAGS_MODULE = $(MODFLAGS) |
338 | LDFLAGS_MODULE = | 338 | LDFLAGS_MODULE = |
339 | CFLAGS_KERNEL = | 339 | CFLAGS_KERNEL = |
340 | AFLAGS_KERNEL = | 340 | AFLAGS_KERNEL = |
341 | 341 | ||
342 | 342 | ||
343 | # Use LINUXINCLUDE when you must reference the include/ directory. | 343 | # Use LINUXINCLUDE when you must reference the include/ directory. |
344 | # Needed to be compatible with the O= option | 344 | # Needed to be compatible with the O= option |
345 | LINUXINCLUDE := -Iinclude \ | 345 | LINUXINCLUDE := -Iinclude \ |
346 | $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ | 346 | $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ |
347 | -I$(srctree)/arch/$(hdr-arch)/include \ | 347 | -I$(srctree)/arch/$(hdr-arch)/include \ |
348 | -include include/linux/autoconf.h | 348 | -include include/linux/autoconf.h |
349 | 349 | ||
350 | KBUILD_CPPFLAGS := -D__KERNEL__ | 350 | KBUILD_CPPFLAGS := -D__KERNEL__ |
351 | 351 | ||
352 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ | 352 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
353 | -fno-strict-aliasing -fno-common \ | 353 | -fno-strict-aliasing -fno-common \ |
354 | -Werror-implicit-function-declaration | 354 | -Werror-implicit-function-declaration |
355 | KBUILD_AFLAGS := -D__ASSEMBLY__ | 355 | KBUILD_AFLAGS := -D__ASSEMBLY__ |
356 | 356 | ||
357 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) | 357 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) |
358 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) | 358 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) |
359 | KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) | 359 | KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) |
360 | 360 | ||
361 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION | 361 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
362 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC | 362 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |
363 | export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE | 363 | export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE |
364 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS | 364 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS |
365 | 365 | ||
366 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS | 366 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
367 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE | 367 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE |
368 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE | 368 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
369 | 369 | ||
370 | # When compiling out-of-tree modules, put MODVERDIR in the module | 370 | # When compiling out-of-tree modules, put MODVERDIR in the module |
371 | # tree rather than in the kernel tree. The kernel tree might | 371 | # tree rather than in the kernel tree. The kernel tree might |
372 | # even be read-only. | 372 | # even be read-only. |
373 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions | 373 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions |
374 | 374 | ||
375 | # Files to ignore in find ... statements | 375 | # Files to ignore in find ... statements |
376 | 376 | ||
377 | RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o | 377 | RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o |
378 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git | 378 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git |
379 | 379 | ||
380 | # =========================================================================== | 380 | # =========================================================================== |
381 | # Rules shared between *config targets and build targets | 381 | # Rules shared between *config targets and build targets |
382 | 382 | ||
383 | # Basic helpers built in scripts/ | 383 | # Basic helpers built in scripts/ |
384 | PHONY += scripts_basic | 384 | PHONY += scripts_basic |
385 | scripts_basic: | 385 | scripts_basic: |
386 | $(Q)$(MAKE) $(build)=scripts/basic | 386 | $(Q)$(MAKE) $(build)=scripts/basic |
387 | 387 | ||
388 | # To avoid any implicit rule to kick in, define an empty command. | 388 | # To avoid any implicit rule to kick in, define an empty command. |
389 | scripts/basic/%: scripts_basic ; | 389 | scripts/basic/%: scripts_basic ; |
390 | 390 | ||
391 | PHONY += outputmakefile | 391 | PHONY += outputmakefile |
392 | # outputmakefile generates a Makefile in the output directory, if using a | 392 | # outputmakefile generates a Makefile in the output directory, if using a |
393 | # separate output directory. This allows convenient use of make in the | 393 | # separate output directory. This allows convenient use of make in the |
394 | # output directory. | 394 | # output directory. |
395 | outputmakefile: | 395 | outputmakefile: |
396 | ifneq ($(KBUILD_SRC),) | 396 | ifneq ($(KBUILD_SRC),) |
397 | $(Q)ln -fsn $(srctree) source | 397 | $(Q)ln -fsn $(srctree) source |
398 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ | 398 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ |
399 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) | 399 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) |
400 | endif | 400 | endif |
401 | 401 | ||
402 | # To make sure we do not include .config for any of the *config targets | 402 | # To make sure we do not include .config for any of the *config targets |
403 | # catch them early, and hand them over to scripts/kconfig/Makefile | 403 | # catch them early, and hand them over to scripts/kconfig/Makefile |
404 | # It is allowed to specify more targets when calling make, including | 404 | # It is allowed to specify more targets when calling make, including |
405 | # mixing *config targets and build targets. | 405 | # mixing *config targets and build targets. |
406 | # For example 'make oldconfig all'. | 406 | # For example 'make oldconfig all'. |
407 | # Detect when mixed targets is specified, and make a second invocation | 407 | # Detect when mixed targets is specified, and make a second invocation |
408 | # of make so .config is not included in this case either (for *config). | 408 | # of make so .config is not included in this case either (for *config). |
409 | 409 | ||
410 | no-dot-config-targets := clean mrproper distclean \ | 410 | no-dot-config-targets := clean mrproper distclean \ |
411 | cscope TAGS tags help %docs check% \ | 411 | cscope TAGS tags help %docs check% \ |
412 | include/linux/version.h headers_% \ | 412 | include/linux/version.h headers_% \ |
413 | kernelrelease kernelversion | 413 | kernelrelease kernelversion |
414 | 414 | ||
415 | config-targets := 0 | 415 | config-targets := 0 |
416 | mixed-targets := 0 | 416 | mixed-targets := 0 |
417 | dot-config := 1 | 417 | dot-config := 1 |
418 | 418 | ||
419 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) | 419 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) |
420 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) | 420 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) |
421 | dot-config := 0 | 421 | dot-config := 0 |
422 | endif | 422 | endif |
423 | endif | 423 | endif |
424 | 424 | ||
425 | ifeq ($(KBUILD_EXTMOD),) | 425 | ifeq ($(KBUILD_EXTMOD),) |
426 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) | 426 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) |
427 | config-targets := 1 | 427 | config-targets := 1 |
428 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) | 428 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) |
429 | mixed-targets := 1 | 429 | mixed-targets := 1 |
430 | endif | 430 | endif |
431 | endif | 431 | endif |
432 | endif | 432 | endif |
433 | 433 | ||
434 | ifeq ($(mixed-targets),1) | 434 | ifeq ($(mixed-targets),1) |
435 | # =========================================================================== | 435 | # =========================================================================== |
436 | # We're called with mixed targets (*config and build targets). | 436 | # We're called with mixed targets (*config and build targets). |
437 | # Handle them one by one. | 437 | # Handle them one by one. |
438 | 438 | ||
439 | %:: FORCE | 439 | %:: FORCE |
440 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ | 440 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ |
441 | 441 | ||
442 | else | 442 | else |
443 | ifeq ($(config-targets),1) | 443 | ifeq ($(config-targets),1) |
444 | # =========================================================================== | 444 | # =========================================================================== |
445 | # *config targets only - make sure prerequisites are updated, and descend | 445 | # *config targets only - make sure prerequisites are updated, and descend |
446 | # in scripts/kconfig to make the *config target | 446 | # in scripts/kconfig to make the *config target |
447 | 447 | ||
448 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. | 448 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. |
449 | # KBUILD_DEFCONFIG may point out an alternative default configuration | 449 | # KBUILD_DEFCONFIG may point out an alternative default configuration |
450 | # used for 'make defconfig' | 450 | # used for 'make defconfig' |
451 | include $(srctree)/arch/$(SRCARCH)/Makefile | 451 | include $(srctree)/arch/$(SRCARCH)/Makefile |
452 | export KBUILD_DEFCONFIG KBUILD_KCONFIG | 452 | export KBUILD_DEFCONFIG KBUILD_KCONFIG |
453 | 453 | ||
454 | config: scripts_basic outputmakefile FORCE | 454 | config: scripts_basic outputmakefile FORCE |
455 | $(Q)mkdir -p include/linux include/config | 455 | $(Q)mkdir -p include/linux include/config |
456 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 456 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
457 | 457 | ||
458 | %config: scripts_basic outputmakefile FORCE | 458 | %config: scripts_basic outputmakefile FORCE |
459 | $(Q)mkdir -p include/linux include/config | 459 | $(Q)mkdir -p include/linux include/config |
460 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 460 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
461 | 461 | ||
462 | else | 462 | else |
463 | # =========================================================================== | 463 | # =========================================================================== |
464 | # Build targets only - this includes vmlinux, arch specific targets, clean | 464 | # Build targets only - this includes vmlinux, arch specific targets, clean |
465 | # targets and others. In general all targets except *config targets. | 465 | # targets and others. In general all targets except *config targets. |
466 | 466 | ||
467 | ifeq ($(KBUILD_EXTMOD),) | 467 | ifeq ($(KBUILD_EXTMOD),) |
468 | # Additional helpers built in scripts/ | 468 | # Additional helpers built in scripts/ |
469 | # Carefully list dependencies so we do not try to build scripts twice | 469 | # Carefully list dependencies so we do not try to build scripts twice |
470 | # in parallel | 470 | # in parallel |
471 | PHONY += scripts | 471 | PHONY += scripts |
472 | scripts: scripts_basic include/config/auto.conf | 472 | scripts: scripts_basic include/config/auto.conf |
473 | $(Q)$(MAKE) $(build)=$(@) | 473 | $(Q)$(MAKE) $(build)=$(@) |
474 | 474 | ||
475 | # Objects we will link into vmlinux / subdirs we need to visit | 475 | # Objects we will link into vmlinux / subdirs we need to visit |
476 | init-y := init/ | 476 | init-y := init/ |
477 | drivers-y := drivers/ sound/ firmware/ | 477 | drivers-y := drivers/ sound/ firmware/ |
478 | net-y := net/ | 478 | net-y := net/ |
479 | libs-y := lib/ | 479 | libs-y := lib/ |
480 | core-y := usr/ | 480 | core-y := usr/ |
481 | endif # KBUILD_EXTMOD | 481 | endif # KBUILD_EXTMOD |
482 | 482 | ||
483 | ifeq ($(dot-config),1) | 483 | ifeq ($(dot-config),1) |
484 | # Read in config | 484 | # Read in config |
485 | -include include/config/auto.conf | 485 | -include include/config/auto.conf |
486 | 486 | ||
487 | ifeq ($(KBUILD_EXTMOD),) | 487 | ifeq ($(KBUILD_EXTMOD),) |
488 | # Read in dependencies to all Kconfig* files, make sure to run | 488 | # Read in dependencies to all Kconfig* files, make sure to run |
489 | # oldconfig if changes are detected. | 489 | # oldconfig if changes are detected. |
490 | -include include/config/auto.conf.cmd | 490 | -include include/config/auto.conf.cmd |
491 | 491 | ||
492 | # To avoid any implicit rule to kick in, define an empty command | 492 | # To avoid any implicit rule to kick in, define an empty command |
493 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; | 493 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; |
494 | 494 | ||
495 | # If .config is newer than include/config/auto.conf, someone tinkered | 495 | # If .config is newer than include/config/auto.conf, someone tinkered |
496 | # with it and forgot to run make oldconfig. | 496 | # with it and forgot to run make oldconfig. |
497 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so | 497 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so |
498 | # we execute the config step to be sure to catch updated Kconfig files | 498 | # we execute the config step to be sure to catch updated Kconfig files |
499 | include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd | 499 | include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
500 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig | 500 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig |
501 | else | 501 | else |
502 | # external modules needs include/linux/autoconf.h and include/config/auto.conf | 502 | # external modules needs include/linux/autoconf.h and include/config/auto.conf |
503 | # but do not care if they are up-to-date. Use auto.conf to trigger the test | 503 | # but do not care if they are up-to-date. Use auto.conf to trigger the test |
504 | PHONY += include/config/auto.conf | 504 | PHONY += include/config/auto.conf |
505 | 505 | ||
506 | include/config/auto.conf: | 506 | include/config/auto.conf: |
507 | $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \ | 507 | $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \ |
508 | echo; \ | 508 | echo; \ |
509 | echo " ERROR: Kernel configuration is invalid."; \ | 509 | echo " ERROR: Kernel configuration is invalid."; \ |
510 | echo " include/linux/autoconf.h or $@ are missing."; \ | 510 | echo " include/linux/autoconf.h or $@ are missing."; \ |
511 | echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ | 511 | echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ |
512 | echo; \ | 512 | echo; \ |
513 | /bin/false) | 513 | /bin/false) |
514 | 514 | ||
515 | endif # KBUILD_EXTMOD | 515 | endif # KBUILD_EXTMOD |
516 | 516 | ||
517 | else | 517 | else |
518 | # Dummy target needed, because used as prerequisite | 518 | # Dummy target needed, because used as prerequisite |
519 | include/config/auto.conf: ; | 519 | include/config/auto.conf: ; |
520 | endif # $(dot-config) | 520 | endif # $(dot-config) |
521 | 521 | ||
522 | # The all: target is the default when no target is given on the | 522 | # The all: target is the default when no target is given on the |
523 | # command line. | 523 | # command line. |
524 | # This allow a user to issue only 'make' to build a kernel including modules | 524 | # This allow a user to issue only 'make' to build a kernel including modules |
525 | # Defaults vmlinux but it is usually overridden in the arch makefile | 525 | # Defaults vmlinux but it is usually overridden in the arch makefile |
526 | all: vmlinux | 526 | all: vmlinux |
527 | 527 | ||
528 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE | 528 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
529 | KBUILD_CFLAGS += -Os | 529 | KBUILD_CFLAGS += -Os |
530 | else | 530 | else |
531 | KBUILD_CFLAGS += -O2 | 531 | KBUILD_CFLAGS += -O2 |
532 | endif | 532 | endif |
533 | 533 | ||
534 | include $(srctree)/arch/$(SRCARCH)/Makefile | 534 | include $(srctree)/arch/$(SRCARCH)/Makefile |
535 | 535 | ||
536 | ifneq ($(CONFIG_FRAME_WARN),0) | 536 | ifneq ($(CONFIG_FRAME_WARN),0) |
537 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) | 537 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) |
538 | endif | 538 | endif |
539 | 539 | ||
540 | # Force gcc to behave correct even for buggy distributions | 540 | # Force gcc to behave correct even for buggy distributions |
541 | ifndef CONFIG_CC_STACKPROTECTOR | 541 | ifndef CONFIG_CC_STACKPROTECTOR |
542 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) | 542 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) |
543 | endif | 543 | endif |
544 | 544 | ||
545 | ifdef CONFIG_FRAME_POINTER | 545 | ifdef CONFIG_FRAME_POINTER |
546 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls | 546 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
547 | else | 547 | else |
548 | KBUILD_CFLAGS += -fomit-frame-pointer | 548 | KBUILD_CFLAGS += -fomit-frame-pointer |
549 | endif | 549 | endif |
550 | 550 | ||
551 | ifdef CONFIG_DEBUG_INFO | 551 | ifdef CONFIG_DEBUG_INFO |
552 | KBUILD_CFLAGS += -g | 552 | KBUILD_CFLAGS += -g |
553 | KBUILD_AFLAGS += -gdwarf-2 | 553 | KBUILD_AFLAGS += -gdwarf-2 |
554 | endif | 554 | endif |
555 | 555 | ||
556 | ifdef CONFIG_FUNCTION_TRACER | 556 | ifdef CONFIG_FUNCTION_TRACER |
557 | KBUILD_CFLAGS += -pg | 557 | KBUILD_CFLAGS += -pg |
558 | endif | 558 | endif |
559 | 559 | ||
560 | # We trigger additional mismatches with less inlining | 560 | # We trigger additional mismatches with less inlining |
561 | ifdef CONFIG_DEBUG_SECTION_MISMATCH | 561 | ifdef CONFIG_DEBUG_SECTION_MISMATCH |
562 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) | 562 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) |
563 | endif | 563 | endif |
564 | 564 | ||
565 | # arch Makefile may override CC so keep this after arch Makefile is included | 565 | # arch Makefile may override CC so keep this after arch Makefile is included |
566 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) | 566 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
567 | CHECKFLAGS += $(NOSTDINC_FLAGS) | 567 | CHECKFLAGS += $(NOSTDINC_FLAGS) |
568 | 568 | ||
569 | # warn about C99 declaration after statement | 569 | # warn about C99 declaration after statement |
570 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) | 570 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
571 | 571 | ||
572 | # disable pointer signed / unsigned warnings in gcc 4.0 | 572 | # disable pointer signed / unsigned warnings in gcc 4.0 |
573 | KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) | 573 | KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) |
574 | 574 | ||
575 | # disable invalid "can't wrap" optimizations for signed / pointers | 575 | # disable invalid "can't wrap" optimizations for signed / pointers |
576 | KBUILD_CFLAGS += $(call cc-option,-fwrapv) | 576 | KBUILD_CFLAGS += $(call cc-option,-fwrapv) |
577 | 577 | ||
578 | # revert to pre-gcc-4.4 behaviour of .eh_frame | 578 | # revert to pre-gcc-4.4 behaviour of .eh_frame |
579 | KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) | 579 | KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) |
580 | 580 | ||
581 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments | 581 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
582 | # But warn user when we do so | 582 | # But warn user when we do so |
583 | warn-assign = \ | 583 | warn-assign = \ |
584 | $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") | 584 | $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") |
585 | 585 | ||
586 | ifneq ($(KCPPFLAGS),) | 586 | ifneq ($(KCPPFLAGS),) |
587 | $(call warn-assign,CPPFLAGS) | 587 | $(call warn-assign,CPPFLAGS) |
588 | KBUILD_CPPFLAGS += $(KCPPFLAGS) | 588 | KBUILD_CPPFLAGS += $(KCPPFLAGS) |
589 | endif | 589 | endif |
590 | ifneq ($(KAFLAGS),) | 590 | ifneq ($(KAFLAGS),) |
591 | $(call warn-assign,AFLAGS) | 591 | $(call warn-assign,AFLAGS) |
592 | KBUILD_AFLAGS += $(KAFLAGS) | 592 | KBUILD_AFLAGS += $(KAFLAGS) |
593 | endif | 593 | endif |
594 | ifneq ($(KCFLAGS),) | 594 | ifneq ($(KCFLAGS),) |
595 | $(call warn-assign,CFLAGS) | 595 | $(call warn-assign,CFLAGS) |
596 | KBUILD_CFLAGS += $(KCFLAGS) | 596 | KBUILD_CFLAGS += $(KCFLAGS) |
597 | endif | 597 | endif |
598 | 598 | ||
599 | # Use --build-id when available. | 599 | # Use --build-id when available. |
600 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ | 600 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ |
601 | $(call ld-option, -Wl$(comma)--build-id,)) | 601 | $(call ld-option, -Wl$(comma)--build-id,)) |
602 | LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) | 602 | LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) |
603 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) | 603 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) |
604 | 604 | ||
605 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) | 605 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) |
606 | LDFLAGS_vmlinux += -X | 606 | LDFLAGS_vmlinux += -X |
607 | endif | 607 | endif |
608 | 608 | ||
609 | # Default kernel image to build when no specific target is given. | 609 | # Default kernel image to build when no specific target is given. |
610 | # KBUILD_IMAGE may be overruled on the command line or | 610 | # KBUILD_IMAGE may be overruled on the command line or |
611 | # set in the environment | 611 | # set in the environment |
612 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over | 612 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over |
613 | # this default value | 613 | # this default value |
614 | export KBUILD_IMAGE ?= vmlinux | 614 | export KBUILD_IMAGE ?= vmlinux |
615 | 615 | ||
616 | # | 616 | # |
617 | # INSTALL_PATH specifies where to place the updated kernel and system map | 617 | # INSTALL_PATH specifies where to place the updated kernel and system map |
618 | # images. Default is /boot, but you can set it to other values | 618 | # images. Default is /boot, but you can set it to other values |
619 | export INSTALL_PATH ?= /boot | 619 | export INSTALL_PATH ?= /boot |
620 | 620 | ||
621 | # | 621 | # |
622 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory | 622 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory |
623 | # relocations required by build roots. This is not defined in the | 623 | # relocations required by build roots. This is not defined in the |
624 | # makefile but the argument can be passed to make if needed. | 624 | # makefile but the argument can be passed to make if needed. |
625 | # | 625 | # |
626 | 626 | ||
627 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) | 627 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
628 | export MODLIB | 628 | export MODLIB |
629 | 629 | ||
630 | # | 630 | # |
631 | # INSTALL_MOD_STRIP, if defined, will cause modules to be | 631 | # INSTALL_MOD_STRIP, if defined, will cause modules to be |
632 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then | 632 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then |
633 | # the default option --strip-debug will be used. Otherwise, | 633 | # the default option --strip-debug will be used. Otherwise, |
634 | # INSTALL_MOD_STRIP will used as the options to the strip command. | 634 | # INSTALL_MOD_STRIP will used as the options to the strip command. |
635 | 635 | ||
636 | ifdef INSTALL_MOD_STRIP | 636 | ifdef INSTALL_MOD_STRIP |
637 | ifeq ($(INSTALL_MOD_STRIP),1) | 637 | ifeq ($(INSTALL_MOD_STRIP),1) |
638 | mod_strip_cmd = $(STRIP) --strip-debug | 638 | mod_strip_cmd = $(STRIP) --strip-debug |
639 | else | 639 | else |
640 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) | 640 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
641 | endif # INSTALL_MOD_STRIP=1 | 641 | endif # INSTALL_MOD_STRIP=1 |
642 | else | 642 | else |
643 | mod_strip_cmd = true | 643 | mod_strip_cmd = true |
644 | endif # INSTALL_MOD_STRIP | 644 | endif # INSTALL_MOD_STRIP |
645 | export mod_strip_cmd | 645 | export mod_strip_cmd |
646 | 646 | ||
647 | 647 | ||
648 | ifeq ($(KBUILD_EXTMOD),) | 648 | ifeq ($(KBUILD_EXTMOD),) |
649 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ | 649 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
650 | 650 | ||
651 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ | 651 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ |
652 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ | 652 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ |
653 | $(net-y) $(net-m) $(libs-y) $(libs-m))) | 653 | $(net-y) $(net-m) $(libs-y) $(libs-m))) |
654 | 654 | ||
655 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ | 655 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ |
656 | $(init-n) $(init-) \ | 656 | $(init-n) $(init-) \ |
657 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ | 657 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ |
658 | $(net-n) $(net-) $(libs-n) $(libs-)))) | 658 | $(net-n) $(net-) $(libs-n) $(libs-)))) |
659 | 659 | ||
660 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) | 660 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) |
661 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) | 661 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) |
662 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) | 662 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) |
663 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) | 663 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) |
664 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) | 664 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) |
665 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) | 665 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) |
666 | libs-y := $(libs-y1) $(libs-y2) | 666 | libs-y := $(libs-y1) $(libs-y2) |
667 | 667 | ||
668 | # Build vmlinux | 668 | # Build vmlinux |
669 | # --------------------------------------------------------------------------- | 669 | # --------------------------------------------------------------------------- |
670 | # vmlinux is built from the objects selected by $(vmlinux-init) and | 670 | # vmlinux is built from the objects selected by $(vmlinux-init) and |
671 | # $(vmlinux-main). Most are built-in.o files from top-level directories | 671 | # $(vmlinux-main). Most are built-in.o files from top-level directories |
672 | # in the kernel tree, others are specified in arch/$(ARCH)/Makefile. | 672 | # in the kernel tree, others are specified in arch/$(ARCH)/Makefile. |
673 | # Ordering when linking is important, and $(vmlinux-init) must be first. | 673 | # Ordering when linking is important, and $(vmlinux-init) must be first. |
674 | # | 674 | # |
675 | # vmlinux | 675 | # vmlinux |
676 | # ^ | 676 | # ^ |
677 | # | | 677 | # | |
678 | # +-< $(vmlinux-init) | 678 | # +-< $(vmlinux-init) |
679 | # | +--< init/version.o + more | 679 | # | +--< init/version.o + more |
680 | # | | 680 | # | |
681 | # +--< $(vmlinux-main) | 681 | # +--< $(vmlinux-main) |
682 | # | +--< driver/built-in.o mm/built-in.o + more | 682 | # | +--< driver/built-in.o mm/built-in.o + more |
683 | # | | 683 | # | |
684 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) | 684 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) |
685 | # | 685 | # |
686 | # vmlinux version (uname -v) cannot be updated during normal | 686 | # vmlinux version (uname -v) cannot be updated during normal |
687 | # descending-into-subdirs phase since we do not yet know if we need to | 687 | # descending-into-subdirs phase since we do not yet know if we need to |
688 | # update vmlinux. | 688 | # update vmlinux. |
689 | # Therefore this step is delayed until just before final link of vmlinux - | 689 | # Therefore this step is delayed until just before final link of vmlinux - |
690 | # except in the kallsyms case where it is done just before adding the | 690 | # except in the kallsyms case where it is done just before adding the |
691 | # symbols to the kernel. | 691 | # symbols to the kernel. |
692 | # | 692 | # |
693 | # System.map is generated to document addresses of all kernel symbols | 693 | # System.map is generated to document addresses of all kernel symbols |
694 | 694 | ||
695 | vmlinux-init := $(head-y) $(init-y) | 695 | vmlinux-init := $(head-y) $(init-y) |
696 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) | 696 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) |
697 | vmlinux-all := $(vmlinux-init) $(vmlinux-main) | 697 | vmlinux-all := $(vmlinux-init) $(vmlinux-main) |
698 | vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds | 698 | vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds |
699 | export KBUILD_VMLINUX_OBJS := $(vmlinux-all) | 699 | export KBUILD_VMLINUX_OBJS := $(vmlinux-all) |
700 | 700 | ||
701 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS | 701 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS |
702 | # May be overridden by arch/$(ARCH)/Makefile | 702 | # May be overridden by arch/$(ARCH)/Makefile |
703 | quiet_cmd_vmlinux__ ?= LD $@ | 703 | quiet_cmd_vmlinux__ ?= LD $@ |
704 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ | 704 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ |
705 | -T $(vmlinux-lds) $(vmlinux-init) \ | 705 | -T $(vmlinux-lds) $(vmlinux-init) \ |
706 | --start-group $(vmlinux-main) --end-group \ | 706 | --start-group $(vmlinux-main) --end-group \ |
707 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) | 707 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) |
708 | 708 | ||
709 | # Generate new vmlinux version | 709 | # Generate new vmlinux version |
710 | quiet_cmd_vmlinux_version = GEN .version | 710 | quiet_cmd_vmlinux_version = GEN .version |
711 | cmd_vmlinux_version = set -e; \ | 711 | cmd_vmlinux_version = set -e; \ |
712 | if [ ! -r .version ]; then \ | 712 | if [ ! -r .version ]; then \ |
713 | rm -f .version; \ | 713 | rm -f .version; \ |
714 | echo 1 >.version; \ | 714 | echo 1 >.version; \ |
715 | else \ | 715 | else \ |
716 | mv .version .old_version; \ | 716 | mv .version .old_version; \ |
717 | expr 0$$(cat .old_version) + 1 >.version; \ | 717 | expr 0$$(cat .old_version) + 1 >.version; \ |
718 | fi; \ | 718 | fi; \ |
719 | $(MAKE) $(build)=init | 719 | $(MAKE) $(build)=init |
720 | 720 | ||
721 | # Generate System.map | 721 | # Generate System.map |
722 | quiet_cmd_sysmap = SYSMAP | 722 | quiet_cmd_sysmap = SYSMAP |
723 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap | 723 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap |
724 | 724 | ||
725 | # Link of vmlinux | 725 | # Link of vmlinux |
726 | # If CONFIG_KALLSYMS is set .version is already updated | 726 | # If CONFIG_KALLSYMS is set .version is already updated |
727 | # Generate System.map and verify that the content is consistent | 727 | # Generate System.map and verify that the content is consistent |
728 | # Use + in front of the vmlinux_version rule to silent warning with make -j2 | 728 | # Use + in front of the vmlinux_version rule to silent warning with make -j2 |
729 | # First command is ':' to allow us to use + in front of the rule | 729 | # First command is ':' to allow us to use + in front of the rule |
730 | define rule_vmlinux__ | 730 | define rule_vmlinux__ |
731 | : | 731 | : |
732 | $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) | 732 | $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) |
733 | 733 | ||
734 | $(call cmd,vmlinux__) | 734 | $(call cmd,vmlinux__) |
735 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | 735 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
736 | 736 | ||
737 | $(Q)$(if $($(quiet)cmd_sysmap), \ | 737 | $(Q)$(if $($(quiet)cmd_sysmap), \ |
738 | echo ' $($(quiet)cmd_sysmap) System.map' &&) \ | 738 | echo ' $($(quiet)cmd_sysmap) System.map' &&) \ |
739 | $(cmd_sysmap) $@ System.map; \ | 739 | $(cmd_sysmap) $@ System.map; \ |
740 | if [ $$? -ne 0 ]; then \ | 740 | if [ $$? -ne 0 ]; then \ |
741 | rm -f $@; \ | 741 | rm -f $@; \ |
742 | /bin/false; \ | 742 | /bin/false; \ |
743 | fi; | 743 | fi; |
744 | $(verify_kallsyms) | 744 | $(verify_kallsyms) |
745 | endef | 745 | endef |
746 | 746 | ||
747 | 747 | ||
748 | ifdef CONFIG_KALLSYMS | 748 | ifdef CONFIG_KALLSYMS |
749 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) | 749 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) |
750 | # It's a three stage process: | 750 | # It's a three stage process: |
751 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is | 751 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is |
752 | # empty | 752 | # empty |
753 | # Running kallsyms on that gives us .tmp_kallsyms1.o with | 753 | # Running kallsyms on that gives us .tmp_kallsyms1.o with |
754 | # the right size - vmlinux version (uname -v) is updated during this step | 754 | # the right size - vmlinux version (uname -v) is updated during this step |
755 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size, | 755 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size, |
756 | # but due to the added section, some addresses have shifted. | 756 | # but due to the added section, some addresses have shifted. |
757 | # From here, we generate a correct .tmp_kallsyms2.o | 757 | # From here, we generate a correct .tmp_kallsyms2.o |
758 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. | 758 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. |
759 | # o Verify that the System.map from vmlinux matches the map from | 759 | # o Verify that the System.map from vmlinux matches the map from |
760 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. | 760 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. |
761 | # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using | 761 | # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using |
762 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a | 762 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a |
763 | # temporary bypass to allow the kernel to be built while the | 763 | # temporary bypass to allow the kernel to be built while the |
764 | # maintainers work out what went wrong with kallsyms. | 764 | # maintainers work out what went wrong with kallsyms. |
765 | 765 | ||
766 | ifdef CONFIG_KALLSYMS_EXTRA_PASS | 766 | ifdef CONFIG_KALLSYMS_EXTRA_PASS |
767 | last_kallsyms := 3 | 767 | last_kallsyms := 3 |
768 | else | 768 | else |
769 | last_kallsyms := 2 | 769 | last_kallsyms := 2 |
770 | endif | 770 | endif |
771 | 771 | ||
772 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o | 772 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o |
773 | 773 | ||
774 | define verify_kallsyms | 774 | define verify_kallsyms |
775 | $(Q)$(if $($(quiet)cmd_sysmap), \ | 775 | $(Q)$(if $($(quiet)cmd_sysmap), \ |
776 | echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ | 776 | echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ |
777 | $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map | 777 | $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map |
778 | $(Q)cmp -s System.map .tmp_System.map || \ | 778 | $(Q)cmp -s System.map .tmp_System.map || \ |
779 | (echo Inconsistent kallsyms data; \ | 779 | (echo Inconsistent kallsyms data; \ |
780 | echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ | 780 | echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ |
781 | rm .tmp_kallsyms* ; /bin/false ) | 781 | rm .tmp_kallsyms* ; /bin/false ) |
782 | endef | 782 | endef |
783 | 783 | ||
784 | # Update vmlinux version before link | 784 | # Update vmlinux version before link |
785 | # Use + in front of this rule to silent warning about make -j1 | 785 | # Use + in front of this rule to silent warning about make -j1 |
786 | # First command is ':' to allow us to use + in front of this rule | 786 | # First command is ':' to allow us to use + in front of this rule |
787 | cmd_ksym_ld = $(cmd_vmlinux__) | 787 | cmd_ksym_ld = $(cmd_vmlinux__) |
788 | define rule_ksym_ld | 788 | define rule_ksym_ld |
789 | : | 789 | : |
790 | +$(call cmd,vmlinux_version) | 790 | +$(call cmd,vmlinux_version) |
791 | $(call cmd,vmlinux__) | 791 | $(call cmd,vmlinux__) |
792 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | 792 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
793 | endef | 793 | endef |
794 | 794 | ||
795 | # Generate .S file with all kernel symbols | 795 | # Generate .S file with all kernel symbols |
796 | quiet_cmd_kallsyms = KSYM $@ | 796 | quiet_cmd_kallsyms = KSYM $@ |
797 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ | 797 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ |
798 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ | 798 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ |
799 | 799 | ||
800 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE | 800 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE |
801 | $(call if_changed_dep,as_o_S) | 801 | $(call if_changed_dep,as_o_S) |
802 | 802 | ||
803 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) | 803 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) |
804 | $(call cmd,kallsyms) | 804 | $(call cmd,kallsyms) |
805 | 805 | ||
806 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version | 806 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version |
807 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE | 807 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE |
808 | $(call if_changed_rule,ksym_ld) | 808 | $(call if_changed_rule,ksym_ld) |
809 | 809 | ||
810 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE | 810 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE |
811 | $(call if_changed,vmlinux__) | 811 | $(call if_changed,vmlinux__) |
812 | 812 | ||
813 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE | 813 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE |
814 | $(call if_changed,vmlinux__) | 814 | $(call if_changed,vmlinux__) |
815 | 815 | ||
816 | # Needs to visit scripts/ before $(KALLSYMS) can be used. | 816 | # Needs to visit scripts/ before $(KALLSYMS) can be used. |
817 | $(KALLSYMS): scripts ; | 817 | $(KALLSYMS): scripts ; |
818 | 818 | ||
819 | # Generate some data for debugging strange kallsyms problems | 819 | # Generate some data for debugging strange kallsyms problems |
820 | debug_kallsyms: .tmp_map$(last_kallsyms) | 820 | debug_kallsyms: .tmp_map$(last_kallsyms) |
821 | 821 | ||
822 | .tmp_map%: .tmp_vmlinux% FORCE | 822 | .tmp_map%: .tmp_vmlinux% FORCE |
823 | ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ | 823 | ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ |
824 | 824 | ||
825 | .tmp_map3: .tmp_map2 | 825 | .tmp_map3: .tmp_map2 |
826 | 826 | ||
827 | .tmp_map2: .tmp_map1 | 827 | .tmp_map2: .tmp_map1 |
828 | 828 | ||
829 | endif # ifdef CONFIG_KALLSYMS | 829 | endif # ifdef CONFIG_KALLSYMS |
830 | 830 | ||
831 | # Do modpost on a prelinked vmlinux. The finally linked vmlinux has | 831 | # Do modpost on a prelinked vmlinux. The finally linked vmlinux has |
832 | # relevant sections renamed as per the linker script. | 832 | # relevant sections renamed as per the linker script. |
833 | quiet_cmd_vmlinux-modpost = LD $@ | 833 | quiet_cmd_vmlinux-modpost = LD $@ |
834 | cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ | 834 | cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ |
835 | $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ | 835 | $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ |
836 | $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) | 836 | $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) |
837 | define rule_vmlinux-modpost | 837 | define rule_vmlinux-modpost |
838 | : | 838 | : |
839 | +$(call cmd,vmlinux-modpost) | 839 | +$(call cmd,vmlinux-modpost) |
840 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ | 840 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ |
841 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd | 841 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd |
842 | endef | 842 | endef |
843 | 843 | ||
844 | # vmlinux image - including updated kernel symbols | 844 | # vmlinux image - including updated kernel symbols |
845 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE | 845 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE |
846 | ifdef CONFIG_HEADERS_CHECK | 846 | ifdef CONFIG_HEADERS_CHECK |
847 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check | 847 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
848 | endif | 848 | endif |
849 | ifdef CONFIG_SAMPLES | 849 | ifdef CONFIG_SAMPLES |
850 | $(Q)$(MAKE) $(build)=samples | 850 | $(Q)$(MAKE) $(build)=samples |
851 | endif | 851 | endif |
852 | ifdef CONFIG_BUILD_DOCSRC | 852 | ifdef CONFIG_BUILD_DOCSRC |
853 | $(Q)$(MAKE) $(build)=Documentation | 853 | $(Q)$(MAKE) $(build)=Documentation |
854 | endif | 854 | endif |
855 | $(call vmlinux-modpost) | 855 | $(call vmlinux-modpost) |
856 | $(call if_changed_rule,vmlinux__) | 856 | $(call if_changed_rule,vmlinux__) |
857 | $(Q)rm -f .old_version | 857 | $(Q)rm -f .old_version |
858 | 858 | ||
859 | # build vmlinux.o first to catch section mismatch errors early | 859 | # build vmlinux.o first to catch section mismatch errors early |
860 | ifdef CONFIG_KALLSYMS | 860 | ifdef CONFIG_KALLSYMS |
861 | .tmp_vmlinux1: vmlinux.o | 861 | .tmp_vmlinux1: vmlinux.o |
862 | endif | 862 | endif |
863 | 863 | ||
864 | modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) | 864 | modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) |
865 | vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE | 865 | vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE |
866 | $(call if_changed_rule,vmlinux-modpost) | 866 | $(call if_changed_rule,vmlinux-modpost) |
867 | 867 | ||
868 | # The actual objects are generated when descending, | 868 | # The actual objects are generated when descending, |
869 | # make sure no implicit rule kicks in | 869 | # make sure no implicit rule kicks in |
870 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; | 870 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; |
871 | 871 | ||
872 | # Handle descending into subdirectories listed in $(vmlinux-dirs) | 872 | # Handle descending into subdirectories listed in $(vmlinux-dirs) |
873 | # Preset locale variables to speed up the build process. Limit locale | 873 | # Preset locale variables to speed up the build process. Limit locale |
874 | # tweaks to this spot to avoid wrong language settings when running | 874 | # tweaks to this spot to avoid wrong language settings when running |
875 | # make menuconfig etc. | 875 | # make menuconfig etc. |
876 | # Error messages still appears in the original language | 876 | # Error messages still appears in the original language |
877 | 877 | ||
878 | PHONY += $(vmlinux-dirs) | 878 | PHONY += $(vmlinux-dirs) |
879 | $(vmlinux-dirs): prepare scripts | 879 | $(vmlinux-dirs): prepare scripts |
880 | $(Q)$(MAKE) $(build)=$@ | 880 | $(Q)$(MAKE) $(build)=$@ |
881 | 881 | ||
882 | # Build the kernel release string | 882 | # Build the kernel release string |
883 | # | 883 | # |
884 | # The KERNELRELEASE value built here is stored in the file | 884 | # The KERNELRELEASE value built here is stored in the file |
885 | # include/config/kernel.release, and is used when executing several | 885 | # include/config/kernel.release, and is used when executing several |
886 | # make targets, such as "make install" or "make modules_install." | 886 | # make targets, such as "make install" or "make modules_install." |
887 | # | 887 | # |
888 | # The eventual kernel release string consists of the following fields, | 888 | # The eventual kernel release string consists of the following fields, |
889 | # shown in a hierarchical format to show how smaller parts are concatenated | 889 | # shown in a hierarchical format to show how smaller parts are concatenated |
890 | # to form the larger and final value, with values coming from places like | 890 | # to form the larger and final value, with values coming from places like |
891 | # the Makefile, kernel config options, make command line options and/or | 891 | # the Makefile, kernel config options, make command line options and/or |
892 | # SCM tag information. | 892 | # SCM tag information. |
893 | # | 893 | # |
894 | # $(KERNELVERSION) | 894 | # $(KERNELVERSION) |
895 | # $(VERSION) eg, 2 | 895 | # $(VERSION) eg, 2 |
896 | # $(PATCHLEVEL) eg, 6 | 896 | # $(PATCHLEVEL) eg, 6 |
897 | # $(SUBLEVEL) eg, 18 | 897 | # $(SUBLEVEL) eg, 18 |
898 | # $(EXTRAVERSION) eg, -rc6 | 898 | # $(EXTRAVERSION) eg, -rc6 |
899 | # $(localver-full) | 899 | # $(localver-full) |
900 | # $(localver) | 900 | # $(localver) |
901 | # localversion* (files without backups, containing '~') | 901 | # localversion* (files without backups, containing '~') |
902 | # $(CONFIG_LOCALVERSION) (from kernel config setting) | 902 | # $(CONFIG_LOCALVERSION) (from kernel config setting) |
903 | # $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set) | 903 | # $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set) |
904 | # ./scripts/setlocalversion (SCM tag, if one exists) | 904 | # ./scripts/setlocalversion (SCM tag, if one exists) |
905 | # $(LOCALVERSION) (from make command line if provided) | 905 | # $(LOCALVERSION) (from make command line if provided) |
906 | # | 906 | # |
907 | # Note how the final $(localver-auto) string is included *only* if the | 907 | # Note how the final $(localver-auto) string is included *only* if the |
908 | # kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the | 908 | # kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the |
909 | # moment, only git is supported but other SCMs can edit the script | 909 | # moment, only git is supported but other SCMs can edit the script |
910 | # scripts/setlocalversion and add the appropriate checks as needed. | 910 | # scripts/setlocalversion and add the appropriate checks as needed. |
911 | 911 | ||
912 | pattern = ".*/localversion[^~]*" | 912 | pattern = ".*/localversion[^~]*" |
913 | string = $(shell cat /dev/null \ | 913 | string = $(shell cat /dev/null \ |
914 | `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`) | 914 | `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`) |
915 | 915 | ||
916 | localver = $(subst $(space),, $(string) \ | 916 | localver = $(subst $(space),, $(string) \ |
917 | $(patsubst "%",%,$(CONFIG_LOCALVERSION))) | 917 | $(patsubst "%",%,$(CONFIG_LOCALVERSION))) |
918 | 918 | ||
919 | # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called | 919 | # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called |
920 | # and if the SCM is know a tag from the SCM is appended. | 920 | # and if the SCM is know a tag from the SCM is appended. |
921 | # The appended tag is determined by the SCM used. | 921 | # The appended tag is determined by the SCM used. |
922 | # | 922 | # |
923 | # .scmversion is used when generating rpm packages so we do not loose | 923 | # .scmversion is used when generating rpm packages so we do not loose |
924 | # the version information from the SCM when we do the build of the kernel | 924 | # the version information from the SCM when we do the build of the kernel |
925 | # from the copied source | 925 | # from the copied source |
926 | ifdef CONFIG_LOCALVERSION_AUTO | 926 | ifdef CONFIG_LOCALVERSION_AUTO |
927 | 927 | ||
928 | ifeq ($(wildcard .scmversion),) | 928 | ifeq ($(wildcard .scmversion),) |
929 | _localver-auto = $(shell $(CONFIG_SHELL) \ | 929 | _localver-auto = $(shell $(CONFIG_SHELL) \ |
930 | $(srctree)/scripts/setlocalversion $(srctree)) | 930 | $(srctree)/scripts/setlocalversion $(srctree)) |
931 | else | 931 | else |
932 | _localver-auto = $(shell cat .scmversion 2> /dev/null) | 932 | _localver-auto = $(shell cat .scmversion 2> /dev/null) |
933 | endif | 933 | endif |
934 | 934 | ||
935 | localver-auto = $(LOCALVERSION)$(_localver-auto) | 935 | localver-auto = $(LOCALVERSION)$(_localver-auto) |
936 | endif | 936 | endif |
937 | 937 | ||
938 | localver-full = $(localver)$(localver-auto) | 938 | localver-full = $(localver)$(localver-auto) |
939 | 939 | ||
940 | # Store (new) KERNELRELASE string in include/config/kernel.release | 940 | # Store (new) KERNELRELASE string in include/config/kernel.release |
941 | kernelrelease = $(KERNELVERSION)$(localver-full) | 941 | kernelrelease = $(KERNELVERSION)$(localver-full) |
942 | include/config/kernel.release: include/config/auto.conf FORCE | 942 | include/config/kernel.release: include/config/auto.conf FORCE |
943 | $(Q)rm -f $@ | 943 | $(Q)rm -f $@ |
944 | $(Q)echo $(kernelrelease) > $@ | 944 | $(Q)echo $(kernelrelease) > $@ |
945 | 945 | ||
946 | 946 | ||
947 | # Things we need to do before we recursively start building the kernel | 947 | # Things we need to do before we recursively start building the kernel |
948 | # or the modules are listed in "prepare". | 948 | # or the modules are listed in "prepare". |
949 | # A multi level approach is used. prepareN is processed before prepareN-1. | 949 | # A multi level approach is used. prepareN is processed before prepareN-1. |
950 | # archprepare is used in arch Makefiles and when processed asm symlink, | 950 | # archprepare is used in arch Makefiles and when processed asm symlink, |
951 | # version.h and scripts_basic is processed / created. | 951 | # version.h and scripts_basic is processed / created. |
952 | 952 | ||
953 | # Listed in dependency order | 953 | # Listed in dependency order |
954 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 | 954 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
955 | 955 | ||
956 | # prepare3 is used to check if we are building in a separate output directory, | 956 | # prepare3 is used to check if we are building in a separate output directory, |
957 | # and if so do: | 957 | # and if so do: |
958 | # 1) Check that make has not been executed in the kernel src $(srctree) | 958 | # 1) Check that make has not been executed in the kernel src $(srctree) |
959 | # 2) Create the include2 directory, used for the second asm symlink | 959 | # 2) Create the include2 directory, used for the second asm symlink |
960 | prepare3: include/config/kernel.release | 960 | prepare3: include/config/kernel.release |
961 | ifneq ($(KBUILD_SRC),) | 961 | ifneq ($(KBUILD_SRC),) |
962 | @$(kecho) ' Using $(srctree) as source for kernel' | 962 | @$(kecho) ' Using $(srctree) as source for kernel' |
963 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ | 963 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
964 | echo " $(srctree) is not clean, please run 'make mrproper'";\ | 964 | echo " $(srctree) is not clean, please run 'make mrproper'";\ |
965 | echo " in the '$(srctree)' directory.";\ | 965 | echo " in the '$(srctree)' directory.";\ |
966 | /bin/false; \ | 966 | /bin/false; \ |
967 | fi; | 967 | fi; |
968 | $(Q)if [ ! -d include2 ]; then \ | 968 | $(Q)if [ ! -d include2 ]; then \ |
969 | mkdir -p include2; \ | 969 | mkdir -p include2; \ |
970 | ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \ | 970 | ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \ |
971 | fi | 971 | fi |
972 | endif | 972 | endif |
973 | 973 | ||
974 | # prepare2 creates a makefile if using a separate output directory | 974 | # prepare2 creates a makefile if using a separate output directory |
975 | prepare2: prepare3 outputmakefile | 975 | prepare2: prepare3 outputmakefile |
976 | 976 | ||
977 | prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \ | 977 | prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \ |
978 | include/asm include/config/auto.conf | 978 | include/asm include/config/auto.conf |
979 | $(cmd_crmodverdir) | 979 | $(cmd_crmodverdir) |
980 | 980 | ||
981 | archprepare: prepare1 scripts_basic | 981 | archprepare: prepare1 scripts_basic |
982 | 982 | ||
983 | prepare0: archprepare FORCE | 983 | prepare0: archprepare FORCE |
984 | $(Q)$(MAKE) $(build)=. | 984 | $(Q)$(MAKE) $(build)=. |
985 | $(Q)$(MAKE) $(build)=. missing-syscalls | 985 | $(Q)$(MAKE) $(build)=. missing-syscalls |
986 | 986 | ||
987 | # All the preparing.. | 987 | # All the preparing.. |
988 | prepare: prepare0 | 988 | prepare: prepare0 |
989 | 989 | ||
990 | # Leave this as default for preprocessing vmlinux.lds.S, which is now | 990 | # Leave this as default for preprocessing vmlinux.lds.S, which is now |
991 | # done in arch/$(ARCH)/kernel/Makefile | 991 | # done in arch/$(ARCH)/kernel/Makefile |
992 | 992 | ||
993 | export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) | 993 | export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) |
994 | 994 | ||
995 | # The asm symlink changes when $(ARCH) changes. | 995 | # The asm symlink changes when $(ARCH) changes. |
996 | # Detect this and ask user to run make mrproper | 996 | # Detect this and ask user to run make mrproper |
997 | # If asm is a stale symlink (point to dir that does not exist) remove it | 997 | # If asm is a stale symlink (point to dir that does not exist) remove it |
998 | define check-symlink | 998 | define check-symlink |
999 | set -e; \ | 999 | set -e; \ |
1000 | if [ -L include/asm ]; then \ | 1000 | if [ -L include/asm ]; then \ |
1001 | asmlink=`readlink include/asm | cut -d '-' -f 2`; \ | 1001 | asmlink=`readlink include/asm | cut -d '-' -f 2`; \ |
1002 | if [ "$$asmlink" != "$(SRCARCH)" ]; then \ | 1002 | if [ "$$asmlink" != "$(SRCARCH)" ]; then \ |
1003 | echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \ | 1003 | echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \ |
1004 | echo " set ARCH or save .config and run 'make mrproper' to fix it"; \ | 1004 | echo " set ARCH or save .config and run 'make mrproper' to fix it"; \ |
1005 | exit 1; \ | 1005 | exit 1; \ |
1006 | fi; \ | 1006 | fi; \ |
1007 | test -e $$asmlink || rm include/asm; \ | 1007 | test -e $$asmlink || rm include/asm; \ |
1008 | elif [ -d include/asm ]; then \ | 1008 | elif [ -d include/asm ]; then \ |
1009 | echo "ERROR: $@ is a directory but a symlink was expected";\ | 1009 | echo "ERROR: $@ is a directory but a symlink was expected";\ |
1010 | exit 1; \ | 1010 | exit 1; \ |
1011 | fi | 1011 | fi |
1012 | endef | 1012 | endef |
1013 | 1013 | ||
1014 | # We create the target directory of the symlink if it does | 1014 | # We create the target directory of the symlink if it does |
1015 | # not exist so the test in check-symlink works and we have a | 1015 | # not exist so the test in check-symlink works and we have a |
1016 | # directory for generated filesas used by some architectures. | 1016 | # directory for generated filesas used by some architectures. |
1017 | define create-symlink | 1017 | define create-symlink |
1018 | if [ ! -L include/asm ]; then \ | 1018 | if [ ! -L include/asm ]; then \ |
1019 | $(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \ | 1019 | $(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \ |
1020 | if [ ! -d include/asm-$(SRCARCH) ]; then \ | 1020 | if [ ! -d include/asm-$(SRCARCH) ]; then \ |
1021 | mkdir -p include/asm-$(SRCARCH); \ | 1021 | mkdir -p include/asm-$(SRCARCH); \ |
1022 | fi; \ | 1022 | fi; \ |
1023 | ln -fsn asm-$(SRCARCH) $@; \ | 1023 | ln -fsn asm-$(SRCARCH) $@; \ |
1024 | fi | 1024 | fi |
1025 | endef | 1025 | endef |
1026 | 1026 | ||
1027 | include/asm: FORCE | 1027 | include/asm: FORCE |
1028 | $(Q)$(check-symlink) | 1028 | $(Q)$(check-symlink) |
1029 | $(Q)$(create-symlink) | 1029 | $(Q)$(create-symlink) |
1030 | 1030 | ||
1031 | # Generate some files | 1031 | # Generate some files |
1032 | # --------------------------------------------------------------------------- | 1032 | # --------------------------------------------------------------------------- |
1033 | 1033 | ||
1034 | # KERNELRELEASE can change from a few different places, meaning version.h | 1034 | # KERNELRELEASE can change from a few different places, meaning version.h |
1035 | # needs to be updated, so this check is forced on all builds | 1035 | # needs to be updated, so this check is forced on all builds |
1036 | 1036 | ||
1037 | uts_len := 64 | 1037 | uts_len := 64 |
1038 | define filechk_utsrelease.h | 1038 | define filechk_utsrelease.h |
1039 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ | 1039 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ |
1040 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ | 1040 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ |
1041 | exit 1; \ | 1041 | exit 1; \ |
1042 | fi; \ | 1042 | fi; \ |
1043 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) | 1043 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) |
1044 | endef | 1044 | endef |
1045 | 1045 | ||
1046 | define filechk_version.h | 1046 | define filechk_version.h |
1047 | (echo \#define LINUX_VERSION_CODE $(shell \ | 1047 | (echo \#define LINUX_VERSION_CODE $(shell \ |
1048 | expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ | 1048 | expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ |
1049 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) | 1049 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) |
1050 | endef | 1050 | endef |
1051 | 1051 | ||
1052 | include/linux/version.h: $(srctree)/Makefile FORCE | 1052 | include/linux/version.h: $(srctree)/Makefile FORCE |
1053 | $(call filechk,version.h) | 1053 | $(call filechk,version.h) |
1054 | 1054 | ||
1055 | include/linux/utsrelease.h: include/config/kernel.release FORCE | 1055 | include/linux/utsrelease.h: include/config/kernel.release FORCE |
1056 | $(call filechk,utsrelease.h) | 1056 | $(call filechk,utsrelease.h) |
1057 | 1057 | ||
1058 | PHONY += headerdep | 1058 | PHONY += headerdep |
1059 | headerdep: | 1059 | headerdep: |
1060 | $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl | 1060 | $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl |
1061 | 1061 | ||
1062 | # --------------------------------------------------------------------------- | 1062 | # --------------------------------------------------------------------------- |
1063 | 1063 | ||
1064 | PHONY += depend dep | 1064 | PHONY += depend dep |
1065 | depend dep: | 1065 | depend dep: |
1066 | @echo '*** Warning: make $@ is unnecessary now.' | 1066 | @echo '*** Warning: make $@ is unnecessary now.' |
1067 | 1067 | ||
1068 | # --------------------------------------------------------------------------- | 1068 | # --------------------------------------------------------------------------- |
1069 | # Firmware install | 1069 | # Firmware install |
1070 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware | 1070 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware |
1071 | export INSTALL_FW_PATH | 1071 | export INSTALL_FW_PATH |
1072 | 1072 | ||
1073 | PHONY += firmware_install | 1073 | PHONY += firmware_install |
1074 | firmware_install: FORCE | 1074 | firmware_install: FORCE |
1075 | @mkdir -p $(objtree)/firmware | 1075 | @mkdir -p $(objtree)/firmware |
1076 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install | 1076 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install |
1077 | 1077 | ||
1078 | # --------------------------------------------------------------------------- | 1078 | # --------------------------------------------------------------------------- |
1079 | # Kernel headers | 1079 | # Kernel headers |
1080 | 1080 | ||
1081 | #Default location for installed headers | 1081 | #Default location for installed headers |
1082 | export INSTALL_HDR_PATH = $(objtree)/usr | 1082 | export INSTALL_HDR_PATH = $(objtree)/usr |
1083 | 1083 | ||
1084 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj | 1084 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj |
1085 | # Find out where the Kbuild file is located to support | 1085 | # Find out where the Kbuild file is located to support |
1086 | # arch/$(ARCH)/include/asm | 1086 | # arch/$(ARCH)/include/asm |
1087 | hdr-dir = $(strip \ | 1087 | hdr-dir = $(strip \ |
1088 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \ | 1088 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \ |
1089 | arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch))) | 1089 | arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch))) |
1090 | 1090 | ||
1091 | # If we do an all arch process set dst to asm-$(hdr-arch) | 1091 | # If we do an all arch process set dst to asm-$(hdr-arch) |
1092 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) | 1092 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) |
1093 | 1093 | ||
1094 | PHONY += __headers | 1094 | PHONY += __headers |
1095 | __headers: include/linux/version.h scripts_basic FORCE | 1095 | __headers: include/linux/version.h scripts_basic FORCE |
1096 | $(Q)$(MAKE) $(build)=scripts scripts/unifdef | 1096 | $(Q)$(MAKE) $(build)=scripts scripts/unifdef |
1097 | 1097 | ||
1098 | PHONY += headers_install_all | 1098 | PHONY += headers_install_all |
1099 | headers_install_all: | 1099 | headers_install_all: |
1100 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install | 1100 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install |
1101 | 1101 | ||
1102 | PHONY += headers_install | 1102 | PHONY += headers_install |
1103 | headers_install: __headers | 1103 | headers_install: __headers |
1104 | $(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \ | 1104 | $(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \ |
1105 | $(error Headers not exportable for the $(SRCARCH) architecture)) | 1105 | $(error Headers not exportable for the $(SRCARCH) architecture)) |
1106 | $(Q)$(MAKE) $(hdr-inst)=include | 1106 | $(Q)$(MAKE) $(hdr-inst)=include |
1107 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) | 1107 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) |
1108 | 1108 | ||
1109 | PHONY += headers_check_all | 1109 | PHONY += headers_check_all |
1110 | headers_check_all: headers_install_all | 1110 | headers_check_all: headers_install_all |
1111 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check | 1111 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check |
1112 | 1112 | ||
1113 | PHONY += headers_check | 1113 | PHONY += headers_check |
1114 | headers_check: headers_install | 1114 | headers_check: headers_install |
1115 | $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 | 1115 | $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 |
1116 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1 | 1116 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1 |
1117 | 1117 | ||
1118 | # --------------------------------------------------------------------------- | 1118 | # --------------------------------------------------------------------------- |
1119 | # Modules | 1119 | # Modules |
1120 | 1120 | ||
1121 | ifdef CONFIG_MODULES | 1121 | ifdef CONFIG_MODULES |
1122 | 1122 | ||
1123 | # By default, build modules as well | 1123 | # By default, build modules as well |
1124 | 1124 | ||
1125 | all: modules | 1125 | all: modules |
1126 | 1126 | ||
1127 | # Build modules | 1127 | # Build modules |
1128 | # | 1128 | # |
1129 | # A module can be listed more than once in obj-m resulting in | 1129 | # A module can be listed more than once in obj-m resulting in |
1130 | # duplicate lines in modules.order files. Those are removed | 1130 | # duplicate lines in modules.order files. Those are removed |
1131 | # using awk while concatenating to the final file. | 1131 | # using awk while concatenating to the final file. |
1132 | 1132 | ||
1133 | PHONY += modules | 1133 | PHONY += modules |
1134 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) | 1134 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) |
1135 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order | 1135 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
1136 | @$(kecho) ' Building modules, stage 2.'; | 1136 | @$(kecho) ' Building modules, stage 2.'; |
1137 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1137 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1138 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild | 1138 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
1139 | 1139 | ||
1140 | 1140 | ||
1141 | # Target to prepare building external modules | 1141 | # Target to prepare building external modules |
1142 | PHONY += modules_prepare | 1142 | PHONY += modules_prepare |
1143 | modules_prepare: prepare scripts | 1143 | modules_prepare: prepare scripts |
1144 | 1144 | ||
1145 | # Target to install modules | 1145 | # Target to install modules |
1146 | PHONY += modules_install | 1146 | PHONY += modules_install |
1147 | modules_install: _modinst_ _modinst_post | 1147 | modules_install: _modinst_ _modinst_post |
1148 | 1148 | ||
1149 | PHONY += _modinst_ | 1149 | PHONY += _modinst_ |
1150 | _modinst_: | 1150 | _modinst_: |
1151 | @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ | 1151 | @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ |
1152 | echo "Warning: you may need to install module-init-tools"; \ | 1152 | echo "Warning: you may need to install module-init-tools"; \ |
1153 | echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ | 1153 | echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ |
1154 | sleep 1; \ | 1154 | sleep 1; \ |
1155 | fi | 1155 | fi |
1156 | @rm -rf $(MODLIB)/kernel | 1156 | @rm -rf $(MODLIB)/kernel |
1157 | @rm -f $(MODLIB)/source | 1157 | @rm -f $(MODLIB)/source |
1158 | @mkdir -p $(MODLIB)/kernel | 1158 | @mkdir -p $(MODLIB)/kernel |
1159 | @ln -s $(srctree) $(MODLIB)/source | 1159 | @ln -s $(srctree) $(MODLIB)/source |
1160 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ | 1160 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ |
1161 | rm -f $(MODLIB)/build ; \ | 1161 | rm -f $(MODLIB)/build ; \ |
1162 | ln -s $(objtree) $(MODLIB)/build ; \ | 1162 | ln -s $(objtree) $(MODLIB)/build ; \ |
1163 | fi | 1163 | fi |
1164 | @cp -f $(objtree)/modules.order $(MODLIB)/ | 1164 | @cp -f $(objtree)/modules.order $(MODLIB)/ |
1165 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1165 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1166 | 1166 | ||
1167 | # This depmod is only for convenience to give the initial | 1167 | # This depmod is only for convenience to give the initial |
1168 | # boot a modules.dep even before / is mounted read-write. However the | 1168 | # boot a modules.dep even before / is mounted read-write. However the |
1169 | # boot script depmod is the master version. | 1169 | # boot script depmod is the master version. |
1170 | PHONY += _modinst_post | 1170 | PHONY += _modinst_post |
1171 | _modinst_post: _modinst_ | 1171 | _modinst_post: _modinst_ |
1172 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst | 1172 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
1173 | $(call cmd,depmod) | 1173 | $(call cmd,depmod) |
1174 | 1174 | ||
1175 | else # CONFIG_MODULES | 1175 | else # CONFIG_MODULES |
1176 | 1176 | ||
1177 | # Modules not configured | 1177 | # Modules not configured |
1178 | # --------------------------------------------------------------------------- | 1178 | # --------------------------------------------------------------------------- |
1179 | 1179 | ||
1180 | modules modules_install: FORCE | 1180 | modules modules_install: FORCE |
1181 | @echo | 1181 | @echo |
1182 | @echo "The present kernel configuration has modules disabled." | 1182 | @echo "The present kernel configuration has modules disabled." |
1183 | @echo "Type 'make config' and enable loadable module support." | 1183 | @echo "Type 'make config' and enable loadable module support." |
1184 | @echo "Then build a kernel with module support enabled." | 1184 | @echo "Then build a kernel with module support enabled." |
1185 | @echo | 1185 | @echo |
1186 | @exit 1 | 1186 | @exit 1 |
1187 | 1187 | ||
1188 | endif # CONFIG_MODULES | 1188 | endif # CONFIG_MODULES |
1189 | 1189 | ||
1190 | ### | 1190 | ### |
1191 | # Cleaning is done on three levels. | 1191 | # Cleaning is done on three levels. |
1192 | # make clean Delete most generated files | 1192 | # make clean Delete most generated files |
1193 | # Leave enough to build external modules | 1193 | # Leave enough to build external modules |
1194 | # make mrproper Delete the current configuration, and all generated files | 1194 | # make mrproper Delete the current configuration, and all generated files |
1195 | # make distclean Remove editor backup files, patch leftover files and the like | 1195 | # make distclean Remove editor backup files, patch leftover files and the like |
1196 | 1196 | ||
1197 | # Directories & files removed with 'make clean' | 1197 | # Directories & files removed with 'make clean' |
1198 | CLEAN_DIRS += $(MODVERDIR) | 1198 | CLEAN_DIRS += $(MODVERDIR) |
1199 | CLEAN_FILES += vmlinux System.map \ | 1199 | CLEAN_FILES += vmlinux System.map \ |
1200 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map | 1200 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map |
1201 | 1201 | ||
1202 | # Directories & files removed with 'make mrproper' | 1202 | # Directories & files removed with 'make mrproper' |
1203 | MRPROPER_DIRS += include/config include2 usr/include include/generated | 1203 | MRPROPER_DIRS += include/config include2 usr/include include/generated |
1204 | MRPROPER_FILES += .config .config.old include/asm .version .old_version \ | 1204 | MRPROPER_FILES += .config .config.old include/asm .version .old_version \ |
1205 | include/linux/autoconf.h include/linux/version.h \ | 1205 | include/linux/autoconf.h include/linux/version.h \ |
1206 | include/linux/utsrelease.h \ | 1206 | include/linux/utsrelease.h \ |
1207 | include/linux/bounds.h include/asm*/asm-offsets.h \ | 1207 | include/linux/bounds.h include/asm*/asm-offsets.h \ |
1208 | Module.symvers Module.markers tags TAGS cscope* | 1208 | Module.symvers Module.markers tags TAGS cscope* |
1209 | 1209 | ||
1210 | # clean - Delete most, but leave enough to build external modules | 1210 | # clean - Delete most, but leave enough to build external modules |
1211 | # | 1211 | # |
1212 | clean: rm-dirs := $(CLEAN_DIRS) | 1212 | clean: rm-dirs := $(CLEAN_DIRS) |
1213 | clean: rm-files := $(CLEAN_FILES) | 1213 | clean: rm-files := $(CLEAN_FILES) |
1214 | clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation) | 1214 | clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation) |
1215 | 1215 | ||
1216 | PHONY += $(clean-dirs) clean archclean | 1216 | PHONY += $(clean-dirs) clean archclean |
1217 | $(clean-dirs): | 1217 | $(clean-dirs): |
1218 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1218 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
1219 | 1219 | ||
1220 | clean: archclean $(clean-dirs) | 1220 | clean: archclean $(clean-dirs) |
1221 | $(call cmd,rmdirs) | 1221 | $(call cmd,rmdirs) |
1222 | $(call cmd,rmfiles) | 1222 | $(call cmd,rmfiles) |
1223 | @find . $(RCS_FIND_IGNORE) \ | 1223 | @find . $(RCS_FIND_IGNORE) \ |
1224 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1224 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
1225 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ | 1225 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
1226 | -o -name '*.symtypes' -o -name 'modules.order' \ | 1226 | -o -name '*.symtypes' -o -name 'modules.order' \ |
1227 | -o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \ | 1227 | -o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \ |
1228 | -type f -print | xargs rm -f | 1228 | -type f -print | xargs rm -f |
1229 | 1229 | ||
1230 | # mrproper - Delete all generated files, including .config | 1230 | # mrproper - Delete all generated files, including .config |
1231 | # | 1231 | # |
1232 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) | 1232 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) |
1233 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) | 1233 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) |
1234 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) | 1234 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) |
1235 | 1235 | ||
1236 | PHONY += $(mrproper-dirs) mrproper archmrproper | 1236 | PHONY += $(mrproper-dirs) mrproper archmrproper |
1237 | $(mrproper-dirs): | 1237 | $(mrproper-dirs): |
1238 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) | 1238 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) |
1239 | 1239 | ||
1240 | mrproper: clean archmrproper $(mrproper-dirs) | 1240 | mrproper: clean archmrproper $(mrproper-dirs) |
1241 | $(call cmd,rmdirs) | 1241 | $(call cmd,rmdirs) |
1242 | $(call cmd,rmfiles) | 1242 | $(call cmd,rmfiles) |
1243 | 1243 | ||
1244 | # distclean | 1244 | # distclean |
1245 | # | 1245 | # |
1246 | PHONY += distclean | 1246 | PHONY += distclean |
1247 | 1247 | ||
1248 | distclean: mrproper | 1248 | distclean: mrproper |
1249 | @find $(srctree) $(RCS_FIND_IGNORE) \ | 1249 | @find $(srctree) $(RCS_FIND_IGNORE) \ |
1250 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ | 1250 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
1251 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ | 1251 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
1252 | -o -name '.*.rej' -o -size 0 \ | 1252 | -o -name '.*.rej' -o -size 0 \ |
1253 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ | 1253 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ |
1254 | -type f -print | xargs rm -f | 1254 | -type f -print | xargs rm -f |
1255 | 1255 | ||
1256 | 1256 | ||
1257 | # Packaging of the kernel to various formats | 1257 | # Packaging of the kernel to various formats |
1258 | # --------------------------------------------------------------------------- | 1258 | # --------------------------------------------------------------------------- |
1259 | # rpm target kept for backward compatibility | 1259 | # rpm target kept for backward compatibility |
1260 | package-dir := $(srctree)/scripts/package | 1260 | package-dir := $(srctree)/scripts/package |
1261 | 1261 | ||
1262 | %pkg: include/config/kernel.release FORCE | 1262 | %pkg: include/config/kernel.release FORCE |
1263 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1263 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1264 | rpm: include/config/kernel.release FORCE | 1264 | rpm: include/config/kernel.release FORCE |
1265 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1265 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
1266 | 1266 | ||
1267 | 1267 | ||
1268 | # Brief documentation of the typical targets used | 1268 | # Brief documentation of the typical targets used |
1269 | # --------------------------------------------------------------------------- | 1269 | # --------------------------------------------------------------------------- |
1270 | 1270 | ||
1271 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) | 1271 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
1272 | boards := $(notdir $(boards)) | 1272 | boards := $(notdir $(boards)) |
1273 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) | 1273 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) |
1274 | board-dirs := $(sort $(notdir $(board-dirs:/=))) | 1274 | board-dirs := $(sort $(notdir $(board-dirs:/=))) |
1275 | 1275 | ||
1276 | help: | 1276 | help: |
1277 | @echo 'Cleaning targets:' | 1277 | @echo 'Cleaning targets:' |
1278 | @echo ' clean - Remove most generated files but keep the config and' | 1278 | @echo ' clean - Remove most generated files but keep the config and' |
1279 | @echo ' enough build support to build external modules' | 1279 | @echo ' enough build support to build external modules' |
1280 | @echo ' mrproper - Remove all generated files + config + various backup files' | 1280 | @echo ' mrproper - Remove all generated files + config + various backup files' |
1281 | @echo ' distclean - mrproper + remove editor backup and patch files' | 1281 | @echo ' distclean - mrproper + remove editor backup and patch files' |
1282 | @echo '' | 1282 | @echo '' |
1283 | @echo 'Configuration targets:' | 1283 | @echo 'Configuration targets:' |
1284 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help | 1284 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help |
1285 | @echo '' | 1285 | @echo '' |
1286 | @echo 'Other generic targets:' | 1286 | @echo 'Other generic targets:' |
1287 | @echo ' all - Build all targets marked with [*]' | 1287 | @echo ' all - Build all targets marked with [*]' |
1288 | @echo '* vmlinux - Build the bare kernel' | 1288 | @echo '* vmlinux - Build the bare kernel' |
1289 | @echo '* modules - Build all modules' | 1289 | @echo '* modules - Build all modules' |
1290 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' | 1290 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
1291 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' | 1291 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' |
1292 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' | 1292 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
1293 | @echo ' dir/ - Build all files in dir and below' | 1293 | @echo ' dir/ - Build all files in dir and below' |
1294 | @echo ' dir/file.[ois] - Build specified target only' | 1294 | @echo ' dir/file.[ois] - Build specified target only' |
1295 | @echo ' dir/file.ko - Build module including final link' | 1295 | @echo ' dir/file.ko - Build module including final link' |
1296 | @echo ' modules_prepare - Set up for building external modules' | 1296 | @echo ' modules_prepare - Set up for building external modules' |
1297 | @echo ' tags/TAGS - Generate tags file for editors' | 1297 | @echo ' tags/TAGS - Generate tags file for editors' |
1298 | @echo ' cscope - Generate cscope index' | 1298 | @echo ' cscope - Generate cscope index' |
1299 | @echo ' kernelrelease - Output the release version string' | 1299 | @echo ' kernelrelease - Output the release version string' |
1300 | @echo ' kernelversion - Output the version stored in Makefile' | 1300 | @echo ' kernelversion - Output the version stored in Makefile' |
1301 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ | 1301 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
1302 | echo ' (default: $(INSTALL_HDR_PATH))'; \ | 1302 | echo ' (default: $(INSTALL_HDR_PATH))'; \ |
1303 | echo '' | 1303 | echo '' |
1304 | @echo 'Static analysers' | 1304 | @echo 'Static analysers' |
1305 | @echo ' checkstack - Generate a list of stack hogs' | 1305 | @echo ' checkstack - Generate a list of stack hogs' |
1306 | @echo ' namespacecheck - Name space analysis on compiled kernel' | 1306 | @echo ' namespacecheck - Name space analysis on compiled kernel' |
1307 | @echo ' versioncheck - Sanity check on version.h usage' | 1307 | @echo ' versioncheck - Sanity check on version.h usage' |
1308 | @echo ' includecheck - Check for duplicate included header files' | 1308 | @echo ' includecheck - Check for duplicate included header files' |
1309 | @echo ' export_report - List the usages of all exported symbols' | 1309 | @echo ' export_report - List the usages of all exported symbols' |
1310 | @echo ' headers_check - Sanity check on exported headers' | 1310 | @echo ' headers_check - Sanity check on exported headers' |
1311 | @echo ' headerdep - Detect inclusion cycles in headers'; \ | 1311 | @echo ' headerdep - Detect inclusion cycles in headers'; \ |
1312 | echo '' | 1312 | echo '' |
1313 | @echo 'Kernel packaging:' | 1313 | @echo 'Kernel packaging:' |
1314 | @$(MAKE) $(build)=$(package-dir) help | 1314 | @$(MAKE) $(build)=$(package-dir) help |
1315 | @echo '' | 1315 | @echo '' |
1316 | @echo 'Documentation targets:' | 1316 | @echo 'Documentation targets:' |
1317 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp | 1317 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp |
1318 | @echo '' | 1318 | @echo '' |
1319 | @echo 'Architecture specific targets ($(SRCARCH)):' | 1319 | @echo 'Architecture specific targets ($(SRCARCH)):' |
1320 | @$(if $(archhelp),$(archhelp),\ | 1320 | @$(if $(archhelp),$(archhelp),\ |
1321 | echo ' No architecture specific help defined for $(SRCARCH)') | 1321 | echo ' No architecture specific help defined for $(SRCARCH)') |
1322 | @echo '' | 1322 | @echo '' |
1323 | @$(if $(boards), \ | 1323 | @$(if $(boards), \ |
1324 | $(foreach b, $(boards), \ | 1324 | $(foreach b, $(boards), \ |
1325 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ | 1325 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ |
1326 | echo '') | 1326 | echo '') |
1327 | @$(if $(board-dirs), \ | 1327 | @$(if $(board-dirs), \ |
1328 | $(foreach b, $(board-dirs), \ | 1328 | $(foreach b, $(board-dirs), \ |
1329 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ | 1329 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ |
1330 | printf " %-16s - Show all of the above\\n" help-boards; \ | 1330 | printf " %-16s - Show all of the above\\n" help-boards; \ |
1331 | echo '') | 1331 | echo '') |
1332 | 1332 | ||
1333 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' | 1333 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
1334 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' | 1334 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
1335 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' | 1335 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
1336 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' | 1336 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' |
1337 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' | 1337 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
1338 | @echo '' | 1338 | @echo '' |
1339 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' | 1339 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' |
1340 | @echo 'For further info see the ./README file' | 1340 | @echo 'For further info see the ./README file' |
1341 | 1341 | ||
1342 | 1342 | ||
1343 | help-board-dirs := $(addprefix help-,$(board-dirs)) | 1343 | help-board-dirs := $(addprefix help-,$(board-dirs)) |
1344 | 1344 | ||
1345 | help-boards: $(help-board-dirs) | 1345 | help-boards: $(help-board-dirs) |
1346 | 1346 | ||
1347 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) | 1347 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) |
1348 | 1348 | ||
1349 | $(help-board-dirs): help-%: | 1349 | $(help-board-dirs): help-%: |
1350 | @echo 'Architecture specific targets ($(SRCARCH) $*):' | 1350 | @echo 'Architecture specific targets ($(SRCARCH) $*):' |
1351 | @$(if $(boards-per-dir), \ | 1351 | @$(if $(boards-per-dir), \ |
1352 | $(foreach b, $(boards-per-dir), \ | 1352 | $(foreach b, $(boards-per-dir), \ |
1353 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ | 1353 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ |
1354 | echo '') | 1354 | echo '') |
1355 | 1355 | ||
1356 | 1356 | ||
1357 | # Documentation targets | 1357 | # Documentation targets |
1358 | # --------------------------------------------------------------------------- | 1358 | # --------------------------------------------------------------------------- |
1359 | %docs: scripts_basic FORCE | 1359 | %docs: scripts_basic FORCE |
1360 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ | 1360 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ |
1361 | 1361 | ||
1362 | else # KBUILD_EXTMOD | 1362 | else # KBUILD_EXTMOD |
1363 | 1363 | ||
1364 | ### | 1364 | ### |
1365 | # External module support. | 1365 | # External module support. |
1366 | # When building external modules the kernel used as basis is considered | 1366 | # When building external modules the kernel used as basis is considered |
1367 | # read-only, and no consistency checks are made and the make | 1367 | # read-only, and no consistency checks are made and the make |
1368 | # system is not used on the basis kernel. If updates are required | 1368 | # system is not used on the basis kernel. If updates are required |
1369 | # in the basis kernel ordinary make commands (without M=...) must | 1369 | # in the basis kernel ordinary make commands (without M=...) must |
1370 | # be used. | 1370 | # be used. |
1371 | # | 1371 | # |
1372 | # The following are the only valid targets when building external | 1372 | # The following are the only valid targets when building external |
1373 | # modules. | 1373 | # modules. |
1374 | # make M=dir clean Delete all automatically generated files | 1374 | # make M=dir clean Delete all automatically generated files |
1375 | # make M=dir modules Make all modules in specified dir | 1375 | # make M=dir modules Make all modules in specified dir |
1376 | # make M=dir Same as 'make M=dir modules' | 1376 | # make M=dir Same as 'make M=dir modules' |
1377 | # make M=dir modules_install | 1377 | # make M=dir modules_install |
1378 | # Install the modules built in the module directory | 1378 | # Install the modules built in the module directory |
1379 | # Assumes install directory is already created | 1379 | # Assumes install directory is already created |
1380 | 1380 | ||
1381 | # We are always building modules | 1381 | # We are always building modules |
1382 | KBUILD_MODULES := 1 | 1382 | KBUILD_MODULES := 1 |
1383 | PHONY += crmodverdir | 1383 | PHONY += crmodverdir |
1384 | crmodverdir: | 1384 | crmodverdir: |
1385 | $(cmd_crmodverdir) | 1385 | $(cmd_crmodverdir) |
1386 | 1386 | ||
1387 | PHONY += $(objtree)/Module.symvers | 1387 | PHONY += $(objtree)/Module.symvers |
1388 | $(objtree)/Module.symvers: | 1388 | $(objtree)/Module.symvers: |
1389 | @test -e $(objtree)/Module.symvers || ( \ | 1389 | @test -e $(objtree)/Module.symvers || ( \ |
1390 | echo; \ | 1390 | echo; \ |
1391 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ | 1391 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ |
1392 | echo " is missing; modules will have no dependencies and modversions."; \ | 1392 | echo " is missing; modules will have no dependencies and modversions."; \ |
1393 | echo ) | 1393 | echo ) |
1394 | 1394 | ||
1395 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) | 1395 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) |
1396 | PHONY += $(module-dirs) modules | 1396 | PHONY += $(module-dirs) modules |
1397 | $(module-dirs): crmodverdir $(objtree)/Module.symvers | 1397 | $(module-dirs): crmodverdir $(objtree)/Module.symvers |
1398 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) | 1398 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) |
1399 | 1399 | ||
1400 | modules: $(module-dirs) | 1400 | modules: $(module-dirs) |
1401 | @$(kecho) ' Building modules, stage 2.'; | 1401 | @$(kecho) ' Building modules, stage 2.'; |
1402 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1402 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1403 | 1403 | ||
1404 | PHONY += modules_install | 1404 | PHONY += modules_install |
1405 | modules_install: _emodinst_ _emodinst_post | 1405 | modules_install: _emodinst_ _emodinst_post |
1406 | 1406 | ||
1407 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) | 1407 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) |
1408 | PHONY += _emodinst_ | 1408 | PHONY += _emodinst_ |
1409 | _emodinst_: | 1409 | _emodinst_: |
1410 | $(Q)mkdir -p $(MODLIB)/$(install-dir) | 1410 | $(Q)mkdir -p $(MODLIB)/$(install-dir) |
1411 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1411 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
1412 | 1412 | ||
1413 | PHONY += _emodinst_post | 1413 | PHONY += _emodinst_post |
1414 | _emodinst_post: _emodinst_ | 1414 | _emodinst_post: _emodinst_ |
1415 | $(call cmd,depmod) | 1415 | $(call cmd,depmod) |
1416 | 1416 | ||
1417 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) | 1417 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
1418 | 1418 | ||
1419 | PHONY += $(clean-dirs) clean | 1419 | PHONY += $(clean-dirs) clean |
1420 | $(clean-dirs): | 1420 | $(clean-dirs): |
1421 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1421 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
1422 | 1422 | ||
1423 | clean: rm-dirs := $(MODVERDIR) | 1423 | clean: rm-dirs := $(MODVERDIR) |
1424 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers \ | 1424 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers \ |
1425 | $(KBUILD_EXTMOD)/Module.markers \ | 1425 | $(KBUILD_EXTMOD)/Module.markers \ |
1426 | $(KBUILD_EXTMOD)/modules.order | 1426 | $(KBUILD_EXTMOD)/modules.order |
1427 | clean: $(clean-dirs) | 1427 | clean: $(clean-dirs) |
1428 | $(call cmd,rmdirs) | 1428 | $(call cmd,rmdirs) |
1429 | $(call cmd,rmfiles) | 1429 | $(call cmd,rmfiles) |
1430 | @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ | 1430 | @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ |
1431 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1431 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
1432 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ | 1432 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ |
1433 | -type f -print | xargs rm -f | 1433 | -type f -print | xargs rm -f |
1434 | 1434 | ||
1435 | help: | 1435 | help: |
1436 | @echo ' Building external modules.' | 1436 | @echo ' Building external modules.' |
1437 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' | 1437 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' |
1438 | @echo '' | 1438 | @echo '' |
1439 | @echo ' modules - default target, build the module(s)' | 1439 | @echo ' modules - default target, build the module(s)' |
1440 | @echo ' modules_install - install the module' | 1440 | @echo ' modules_install - install the module' |
1441 | @echo ' clean - remove generated files in module directory only' | 1441 | @echo ' clean - remove generated files in module directory only' |
1442 | @echo '' | 1442 | @echo '' |
1443 | 1443 | ||
1444 | # Dummies... | 1444 | # Dummies... |
1445 | PHONY += prepare scripts | 1445 | PHONY += prepare scripts |
1446 | prepare: ; | 1446 | prepare: ; |
1447 | scripts: ; | 1447 | scripts: ; |
1448 | endif # KBUILD_EXTMOD | 1448 | endif # KBUILD_EXTMOD |
1449 | 1449 | ||
1450 | # Generate tags for editors | 1450 | # Generate tags for editors |
1451 | # --------------------------------------------------------------------------- | 1451 | # --------------------------------------------------------------------------- |
1452 | quiet_cmd_tags = GEN $@ | 1452 | quiet_cmd_tags = GEN $@ |
1453 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ | 1453 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ |
1454 | 1454 | ||
1455 | tags TAGS cscope: FORCE | 1455 | tags TAGS cscope: FORCE |
1456 | $(call cmd,tags) | 1456 | $(call cmd,tags) |
1457 | 1457 | ||
1458 | # Scripts to check various things for consistency | 1458 | # Scripts to check various things for consistency |
1459 | # --------------------------------------------------------------------------- | 1459 | # --------------------------------------------------------------------------- |
1460 | 1460 | ||
1461 | includecheck: | 1461 | includecheck: |
1462 | find * $(RCS_FIND_IGNORE) \ | 1462 | find * $(RCS_FIND_IGNORE) \ |
1463 | -name '*.[hcS]' -type f -print | sort \ | 1463 | -name '*.[hcS]' -type f -print | sort \ |
1464 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl | 1464 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
1465 | 1465 | ||
1466 | versioncheck: | 1466 | versioncheck: |
1467 | find * $(RCS_FIND_IGNORE) \ | 1467 | find * $(RCS_FIND_IGNORE) \ |
1468 | -name '*.[hcS]' -type f -print | sort \ | 1468 | -name '*.[hcS]' -type f -print | sort \ |
1469 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl | 1469 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
1470 | 1470 | ||
1471 | namespacecheck: | 1471 | namespacecheck: |
1472 | $(PERL) $(srctree)/scripts/namespace.pl | 1472 | $(PERL) $(srctree)/scripts/namespace.pl |
1473 | 1473 | ||
1474 | export_report: | 1474 | export_report: |
1475 | $(PERL) $(srctree)/scripts/export_report.pl | 1475 | $(PERL) $(srctree)/scripts/export_report.pl |
1476 | 1476 | ||
1477 | endif #ifeq ($(config-targets),1) | 1477 | endif #ifeq ($(config-targets),1) |
1478 | endif #ifeq ($(mixed-targets),1) | 1478 | endif #ifeq ($(mixed-targets),1) |
1479 | 1479 | ||
1480 | PHONY += checkstack kernelrelease kernelversion | 1480 | PHONY += checkstack kernelrelease kernelversion |
1481 | 1481 | ||
1482 | # UML needs a little special treatment here. It wants to use the host | 1482 | # UML needs a little special treatment here. It wants to use the host |
1483 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone | 1483 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone |
1484 | # else wants $(ARCH), including people doing cross-builds, which means | 1484 | # else wants $(ARCH), including people doing cross-builds, which means |
1485 | # that $(SUBARCH) doesn't work here. | 1485 | # that $(SUBARCH) doesn't work here. |
1486 | ifeq ($(ARCH), um) | 1486 | ifeq ($(ARCH), um) |
1487 | CHECKSTACK_ARCH := $(SUBARCH) | 1487 | CHECKSTACK_ARCH := $(SUBARCH) |
1488 | else | 1488 | else |
1489 | CHECKSTACK_ARCH := $(ARCH) | 1489 | CHECKSTACK_ARCH := $(ARCH) |
1490 | endif | 1490 | endif |
1491 | checkstack: | 1491 | checkstack: |
1492 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ | 1492 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
1493 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) | 1493 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
1494 | 1494 | ||
1495 | kernelrelease: | 1495 | kernelrelease: |
1496 | $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ | 1496 | $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ |
1497 | $(error kernelrelease not valid - run 'make prepare' to update it)) | 1497 | $(error kernelrelease not valid - run 'make prepare' to update it)) |
1498 | kernelversion: | 1498 | kernelversion: |
1499 | @echo $(KERNELVERSION) | 1499 | @echo $(KERNELVERSION) |
1500 | 1500 | ||
1501 | # Single targets | 1501 | # Single targets |
1502 | # --------------------------------------------------------------------------- | 1502 | # --------------------------------------------------------------------------- |
1503 | # Single targets are compatible with: | 1503 | # Single targets are compatible with: |
1504 | # - build with mixed source and output | 1504 | # - build with mixed source and output |
1505 | # - build with separate output dir 'make O=...' | 1505 | # - build with separate output dir 'make O=...' |
1506 | # - external modules | 1506 | # - external modules |
1507 | # | 1507 | # |
1508 | # target-dir => where to store outputfile | 1508 | # target-dir => where to store outputfile |
1509 | # build-dir => directory in kernel source tree to use | 1509 | # build-dir => directory in kernel source tree to use |
1510 | 1510 | ||
1511 | ifeq ($(KBUILD_EXTMOD),) | 1511 | ifeq ($(KBUILD_EXTMOD),) |
1512 | build-dir = $(patsubst %/,%,$(dir $@)) | 1512 | build-dir = $(patsubst %/,%,$(dir $@)) |
1513 | target-dir = $(dir $@) | 1513 | target-dir = $(dir $@) |
1514 | else | 1514 | else |
1515 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) | 1515 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) |
1516 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) | 1516 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) |
1517 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) | 1517 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) |
1518 | endif | 1518 | endif |
1519 | 1519 | ||
1520 | %.s: %.c prepare scripts FORCE | 1520 | %.s: %.c prepare scripts FORCE |
1521 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1521 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1522 | %.i: %.c prepare scripts FORCE | 1522 | %.i: %.c prepare scripts FORCE |
1523 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1523 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1524 | %.o: %.c prepare scripts FORCE | 1524 | %.o: %.c prepare scripts FORCE |
1525 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1525 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1526 | %.lst: %.c prepare scripts FORCE | 1526 | %.lst: %.c prepare scripts FORCE |
1527 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1527 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1528 | %.s: %.S prepare scripts FORCE | 1528 | %.s: %.S prepare scripts FORCE |
1529 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1529 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1530 | %.o: %.S prepare scripts FORCE | 1530 | %.o: %.S prepare scripts FORCE |
1531 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1531 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1532 | %.symtypes: %.c prepare scripts FORCE | 1532 | %.symtypes: %.c prepare scripts FORCE |
1533 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1533 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
1534 | 1534 | ||
1535 | # Modules | 1535 | # Modules |
1536 | /: prepare scripts FORCE | 1536 | /: prepare scripts FORCE |
1537 | $(cmd_crmodverdir) | 1537 | $(cmd_crmodverdir) |
1538 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1538 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1539 | $(build)=$(build-dir) | 1539 | $(build)=$(build-dir) |
1540 | %/: prepare scripts FORCE | 1540 | %/: prepare scripts FORCE |
1541 | $(cmd_crmodverdir) | 1541 | $(cmd_crmodverdir) |
1542 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1542 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1543 | $(build)=$(build-dir) | 1543 | $(build)=$(build-dir) |
1544 | %.ko: prepare scripts FORCE | 1544 | %.ko: prepare scripts FORCE |
1545 | $(cmd_crmodverdir) | 1545 | $(cmd_crmodverdir) |
1546 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1546 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
1547 | $(build)=$(build-dir) $(@:.ko=.o) | 1547 | $(build)=$(build-dir) $(@:.ko=.o) |
1548 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1548 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
1549 | 1549 | ||
1550 | # FIXME Should go into a make.lib or something | 1550 | # FIXME Should go into a make.lib or something |
1551 | # =========================================================================== | 1551 | # =========================================================================== |
1552 | 1552 | ||
1553 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) | 1553 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) |
1554 | cmd_rmdirs = rm -rf $(rm-dirs) | 1554 | cmd_rmdirs = rm -rf $(rm-dirs) |
1555 | 1555 | ||
1556 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) | 1556 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) |
1557 | cmd_rmfiles = rm -f $(rm-files) | 1557 | cmd_rmfiles = rm -f $(rm-files) |
1558 | 1558 | ||
1559 | # Run depmod only if we have System.map and depmod is executable | 1559 | # Run depmod only if we have System.map and depmod is executable |
1560 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) | 1560 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) |
1561 | cmd_depmod = \ | 1561 | cmd_depmod = \ |
1562 | if [ -r System.map -a -x $(DEPMOD) ]; then \ | 1562 | if [ -r System.map -a -x $(DEPMOD) ]; then \ |
1563 | $(DEPMOD) -ae -F System.map \ | 1563 | $(DEPMOD) -ae -F System.map \ |
1564 | $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) ) \ | 1564 | $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) ) \ |
1565 | $(KERNELRELEASE); \ | 1565 | $(KERNELRELEASE); \ |
1566 | fi | 1566 | fi |
1567 | 1567 | ||
1568 | # Create temporary dir for module support files | 1568 | # Create temporary dir for module support files |
1569 | # clean it up only when building all modules | 1569 | # clean it up only when building all modules |
1570 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ | 1570 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ |
1571 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) | 1571 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
1572 | 1572 | ||
1573 | a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ | 1573 | a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ |
1574 | $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ | 1574 | $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ |
1575 | $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) | 1575 | $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) |
1576 | 1576 | ||
1577 | quiet_cmd_as_o_S = AS $@ | 1577 | quiet_cmd_as_o_S = AS $@ |
1578 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< | 1578 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< |
1579 | 1579 | ||
1580 | # read all saved command lines | 1580 | # read all saved command lines |
1581 | 1581 | ||
1582 | targets := $(wildcard $(sort $(targets))) | 1582 | targets := $(wildcard $(sort $(targets))) |
1583 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | 1583 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) |
1584 | 1584 | ||
1585 | ifneq ($(cmd_files),) | 1585 | ifneq ($(cmd_files),) |
1586 | $(cmd_files): ; # Do not try to update included dependency files | 1586 | $(cmd_files): ; # Do not try to update included dependency files |
1587 | include $(cmd_files) | 1587 | include $(cmd_files) |
1588 | endif | 1588 | endif |
1589 | 1589 | ||
1590 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir | 1590 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir |
1591 | # Usage: | 1591 | # Usage: |
1592 | # $(Q)$(MAKE) $(clean)=dir | 1592 | # $(Q)$(MAKE) $(clean)=dir |
1593 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj | 1593 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj |
1594 | 1594 | ||
1595 | endif # skip-makefile | 1595 | endif # skip-makefile |
1596 | 1596 | ||
1597 | PHONY += FORCE | 1597 | PHONY += FORCE |
1598 | FORCE: | 1598 | FORCE: |
1599 | 1599 | ||
1600 | # Declare the contents of the .PHONY variable as phony. We keep that | 1600 | # Declare the contents of the .PHONY variable as phony. We keep that |
1601 | # information in a variable so we can use it in if_changed and friends. | 1601 | # information in a variable so we can use it in if_changed and friends. |
1602 | .PHONY: $(PHONY) | 1602 | .PHONY: $(PHONY) |
1603 | 1603 |