Commit f994ec5a5d8094a195c23b08d373b055ef0044aa
1 parent
bb59d7ebdf
Linux 3.13.10
Showing 1 changed file with 1 additions and 1 deletions Inline Diff
Makefile
| 1 | VERSION = 3 | 1 | VERSION = 3 |
| 2 | PATCHLEVEL = 13 | 2 | PATCHLEVEL = 13 |
| 3 | SUBLEVEL = 9 | 3 | SUBLEVEL = 10 |
| 4 | EXTRAVERSION = | 4 | EXTRAVERSION = |
| 5 | NAME = One Giant Leap for Frogkind | 5 | NAME = One Giant Leap for Frogkind |
| 6 | 6 | ||
| 7 | # *DOCUMENTATION* | 7 | # *DOCUMENTATION* |
| 8 | # To see a list of typical targets execute "make help" | 8 | # To see a list of typical targets execute "make help" |
| 9 | # More info can be located in ./README | 9 | # More info can be located in ./README |
| 10 | # Comments in this file are targeted only to the developer, do not | 10 | # Comments in this file are targeted only to the developer, do not |
| 11 | # expect to learn how to build the kernel reading this file. | 11 | # expect to learn how to build the kernel reading this file. |
| 12 | 12 | ||
| 13 | # Do not: | 13 | # Do not: |
| 14 | # o use make's built-in rules and variables | 14 | # o use make's built-in rules and variables |
| 15 | # (this increases performance and avoids hard-to-debug behaviour); | 15 | # (this increases performance and avoids hard-to-debug behaviour); |
| 16 | # o print "Entering directory ..."; | 16 | # o print "Entering directory ..."; |
| 17 | MAKEFLAGS += -rR --no-print-directory | 17 | MAKEFLAGS += -rR --no-print-directory |
| 18 | 18 | ||
| 19 | # Avoid funny character set dependencies | 19 | # Avoid funny character set dependencies |
| 20 | unexport LC_ALL | 20 | unexport LC_ALL |
| 21 | LC_COLLATE=C | 21 | LC_COLLATE=C |
| 22 | LC_NUMERIC=C | 22 | LC_NUMERIC=C |
| 23 | export LC_COLLATE LC_NUMERIC | 23 | export LC_COLLATE LC_NUMERIC |
| 24 | 24 | ||
| 25 | # Avoid interference with shell env settings | 25 | # Avoid interference with shell env settings |
| 26 | unexport GREP_OPTIONS | 26 | unexport GREP_OPTIONS |
| 27 | 27 | ||
| 28 | # We are using a recursive build, so we need to do a little thinking | 28 | # We are using a recursive build, so we need to do a little thinking |
| 29 | # to get the ordering right. | 29 | # to get the ordering right. |
| 30 | # | 30 | # |
| 31 | # Most importantly: sub-Makefiles should only ever modify files in | 31 | # Most importantly: sub-Makefiles should only ever modify files in |
| 32 | # their own directory. If in some directory we have a dependency on | 32 | # their own directory. If in some directory we have a dependency on |
| 33 | # a file in another dir (which doesn't happen often, but it's often | 33 | # a file in another dir (which doesn't happen often, but it's often |
| 34 | # unavoidable when linking the built-in.o targets which finally | 34 | # unavoidable when linking the built-in.o targets which finally |
| 35 | # turn into vmlinux), we will call a sub make in that other dir, and | 35 | # turn into vmlinux), we will call a sub make in that other dir, and |
| 36 | # after that we are sure that everything which is in that other dir | 36 | # after that we are sure that everything which is in that other dir |
| 37 | # is now up to date. | 37 | # is now up to date. |
| 38 | # | 38 | # |
| 39 | # The only cases where we need to modify files which have global | 39 | # The only cases where we need to modify files which have global |
| 40 | # effects are thus separated out and done before the recursive | 40 | # effects are thus separated out and done before the recursive |
| 41 | # descending is started. They are now explicitly listed as the | 41 | # descending is started. They are now explicitly listed as the |
| 42 | # prepare rule. | 42 | # prepare rule. |
| 43 | 43 | ||
| 44 | # To put more focus on warnings, be less verbose as default | 44 | # To put more focus on warnings, be less verbose as default |
| 45 | # Use 'make V=1' to see the full commands | 45 | # Use 'make V=1' to see the full commands |
| 46 | 46 | ||
| 47 | ifeq ("$(origin V)", "command line") | 47 | ifeq ("$(origin V)", "command line") |
| 48 | KBUILD_VERBOSE = $(V) | 48 | KBUILD_VERBOSE = $(V) |
| 49 | endif | 49 | endif |
| 50 | ifndef KBUILD_VERBOSE | 50 | ifndef KBUILD_VERBOSE |
| 51 | KBUILD_VERBOSE = 0 | 51 | KBUILD_VERBOSE = 0 |
| 52 | endif | 52 | endif |
| 53 | 53 | ||
| 54 | # Call a source code checker (by default, "sparse") as part of the | 54 | # Call a source code checker (by default, "sparse") as part of the |
| 55 | # C compilation. | 55 | # C compilation. |
| 56 | # | 56 | # |
| 57 | # Use 'make C=1' to enable checking of only re-compiled files. | 57 | # Use 'make C=1' to enable checking of only re-compiled files. |
| 58 | # Use 'make C=2' to enable checking of *all* source files, regardless | 58 | # Use 'make C=2' to enable checking of *all* source files, regardless |
| 59 | # of whether they are re-compiled or not. | 59 | # of whether they are re-compiled or not. |
| 60 | # | 60 | # |
| 61 | # See the file "Documentation/sparse.txt" for more details, including | 61 | # See the file "Documentation/sparse.txt" for more details, including |
| 62 | # where to get the "sparse" utility. | 62 | # where to get the "sparse" utility. |
| 63 | 63 | ||
| 64 | ifeq ("$(origin C)", "command line") | 64 | ifeq ("$(origin C)", "command line") |
| 65 | KBUILD_CHECKSRC = $(C) | 65 | KBUILD_CHECKSRC = $(C) |
| 66 | endif | 66 | endif |
| 67 | ifndef KBUILD_CHECKSRC | 67 | ifndef KBUILD_CHECKSRC |
| 68 | KBUILD_CHECKSRC = 0 | 68 | KBUILD_CHECKSRC = 0 |
| 69 | endif | 69 | endif |
| 70 | 70 | ||
| 71 | # Use make M=dir to specify directory of external module to build | 71 | # Use make M=dir to specify directory of external module to build |
| 72 | # Old syntax make ... SUBDIRS=$PWD is still supported | 72 | # Old syntax make ... SUBDIRS=$PWD is still supported |
| 73 | # Setting the environment variable KBUILD_EXTMOD take precedence | 73 | # Setting the environment variable KBUILD_EXTMOD take precedence |
| 74 | ifdef SUBDIRS | 74 | ifdef SUBDIRS |
| 75 | KBUILD_EXTMOD ?= $(SUBDIRS) | 75 | KBUILD_EXTMOD ?= $(SUBDIRS) |
| 76 | endif | 76 | endif |
| 77 | 77 | ||
| 78 | ifeq ("$(origin M)", "command line") | 78 | ifeq ("$(origin M)", "command line") |
| 79 | KBUILD_EXTMOD := $(M) | 79 | KBUILD_EXTMOD := $(M) |
| 80 | endif | 80 | endif |
| 81 | 81 | ||
| 82 | # kbuild supports saving output files in a separate directory. | 82 | # kbuild supports saving output files in a separate directory. |
| 83 | # To locate output files in a separate directory two syntaxes are supported. | 83 | # To locate output files in a separate directory two syntaxes are supported. |
| 84 | # In both cases the working directory must be the root of the kernel src. | 84 | # In both cases the working directory must be the root of the kernel src. |
| 85 | # 1) O= | 85 | # 1) O= |
| 86 | # Use "make O=dir/to/store/output/files/" | 86 | # Use "make O=dir/to/store/output/files/" |
| 87 | # | 87 | # |
| 88 | # 2) Set KBUILD_OUTPUT | 88 | # 2) Set KBUILD_OUTPUT |
| 89 | # Set the environment variable KBUILD_OUTPUT to point to the directory | 89 | # Set the environment variable KBUILD_OUTPUT to point to the directory |
| 90 | # where the output files shall be placed. | 90 | # where the output files shall be placed. |
| 91 | # export KBUILD_OUTPUT=dir/to/store/output/files/ | 91 | # export KBUILD_OUTPUT=dir/to/store/output/files/ |
| 92 | # make | 92 | # make |
| 93 | # | 93 | # |
| 94 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment | 94 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment |
| 95 | # variable. | 95 | # variable. |
| 96 | 96 | ||
| 97 | 97 | ||
| 98 | # KBUILD_SRC is set on invocation of make in OBJ directory | 98 | # KBUILD_SRC is set on invocation of make in OBJ directory |
| 99 | # KBUILD_SRC is not intended to be used by the regular user (for now) | 99 | # KBUILD_SRC is not intended to be used by the regular user (for now) |
| 100 | ifeq ($(KBUILD_SRC),) | 100 | ifeq ($(KBUILD_SRC),) |
| 101 | 101 | ||
| 102 | # OK, Make called in directory where kernel src resides | 102 | # OK, Make called in directory where kernel src resides |
| 103 | # Do we want to locate output files in a separate directory? | 103 | # Do we want to locate output files in a separate directory? |
| 104 | ifeq ("$(origin O)", "command line") | 104 | ifeq ("$(origin O)", "command line") |
| 105 | KBUILD_OUTPUT := $(O) | 105 | KBUILD_OUTPUT := $(O) |
| 106 | endif | 106 | endif |
| 107 | 107 | ||
| 108 | ifeq ("$(origin W)", "command line") | 108 | ifeq ("$(origin W)", "command line") |
| 109 | export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) | 109 | export KBUILD_ENABLE_EXTRA_GCC_CHECKS := $(W) |
| 110 | endif | 110 | endif |
| 111 | 111 | ||
| 112 | # That's our default target when none is given on the command line | 112 | # That's our default target when none is given on the command line |
| 113 | PHONY := _all | 113 | PHONY := _all |
| 114 | _all: | 114 | _all: |
| 115 | 115 | ||
| 116 | # Cancel implicit rules on top Makefile | 116 | # Cancel implicit rules on top Makefile |
| 117 | $(CURDIR)/Makefile Makefile: ; | 117 | $(CURDIR)/Makefile Makefile: ; |
| 118 | 118 | ||
| 119 | ifneq ($(KBUILD_OUTPUT),) | 119 | ifneq ($(KBUILD_OUTPUT),) |
| 120 | # Invoke a second make in the output directory, passing relevant variables | 120 | # Invoke a second make in the output directory, passing relevant variables |
| 121 | # check that the output directory actually exists | 121 | # check that the output directory actually exists |
| 122 | saved-output := $(KBUILD_OUTPUT) | 122 | saved-output := $(KBUILD_OUTPUT) |
| 123 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) | 123 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) |
| 124 | $(if $(KBUILD_OUTPUT),, \ | 124 | $(if $(KBUILD_OUTPUT),, \ |
| 125 | $(error output directory "$(saved-output)" does not exist)) | 125 | $(error output directory "$(saved-output)" does not exist)) |
| 126 | 126 | ||
| 127 | PHONY += $(MAKECMDGOALS) sub-make | 127 | PHONY += $(MAKECMDGOALS) sub-make |
| 128 | 128 | ||
| 129 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make | 129 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make |
| 130 | @: | 130 | @: |
| 131 | 131 | ||
| 132 | sub-make: FORCE | 132 | sub-make: FORCE |
| 133 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ | 133 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ |
| 134 | KBUILD_SRC=$(CURDIR) \ | 134 | KBUILD_SRC=$(CURDIR) \ |
| 135 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ | 135 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ |
| 136 | $(filter-out _all sub-make,$(MAKECMDGOALS)) | 136 | $(filter-out _all sub-make,$(MAKECMDGOALS)) |
| 137 | 137 | ||
| 138 | # Leave processing to above invocation of make | 138 | # Leave processing to above invocation of make |
| 139 | skip-makefile := 1 | 139 | skip-makefile := 1 |
| 140 | endif # ifneq ($(KBUILD_OUTPUT),) | 140 | endif # ifneq ($(KBUILD_OUTPUT),) |
| 141 | endif # ifeq ($(KBUILD_SRC),) | 141 | endif # ifeq ($(KBUILD_SRC),) |
| 142 | 142 | ||
| 143 | # We process the rest of the Makefile if this is the final invocation of make | 143 | # We process the rest of the Makefile if this is the final invocation of make |
| 144 | ifeq ($(skip-makefile),) | 144 | ifeq ($(skip-makefile),) |
| 145 | 145 | ||
| 146 | # If building an external module we do not care about the all: rule | 146 | # If building an external module we do not care about the all: rule |
| 147 | # but instead _all depend on modules | 147 | # but instead _all depend on modules |
| 148 | PHONY += all | 148 | PHONY += all |
| 149 | ifeq ($(KBUILD_EXTMOD),) | 149 | ifeq ($(KBUILD_EXTMOD),) |
| 150 | _all: all | 150 | _all: all |
| 151 | else | 151 | else |
| 152 | _all: modules | 152 | _all: modules |
| 153 | endif | 153 | endif |
| 154 | 154 | ||
| 155 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) | 155 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) |
| 156 | objtree := $(CURDIR) | 156 | objtree := $(CURDIR) |
| 157 | src := $(srctree) | 157 | src := $(srctree) |
| 158 | obj := $(objtree) | 158 | obj := $(objtree) |
| 159 | 159 | ||
| 160 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) | 160 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) |
| 161 | 161 | ||
| 162 | export srctree objtree VPATH | 162 | export srctree objtree VPATH |
| 163 | 163 | ||
| 164 | 164 | ||
| 165 | # SUBARCH tells the usermode build what the underlying arch is. That is set | 165 | # SUBARCH tells the usermode build what the underlying arch is. That is set |
| 166 | # first, and if a usermode build is happening, the "ARCH=um" on the command | 166 | # first, and if a usermode build is happening, the "ARCH=um" on the command |
| 167 | # line overrides the setting of ARCH below. If a native build is happening, | 167 | # line overrides the setting of ARCH below. If a native build is happening, |
| 168 | # then ARCH is assigned, getting whatever value it gets normally, and | 168 | # then ARCH is assigned, getting whatever value it gets normally, and |
| 169 | # SUBARCH is subsequently ignored. | 169 | # SUBARCH is subsequently ignored. |
| 170 | 170 | ||
| 171 | SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ | 171 | SUBARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \ |
| 172 | -e s/sun4u/sparc64/ \ | 172 | -e s/sun4u/sparc64/ \ |
| 173 | -e s/arm.*/arm/ -e s/sa110/arm/ \ | 173 | -e s/arm.*/arm/ -e s/sa110/arm/ \ |
| 174 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ | 174 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ |
| 175 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ | 175 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ |
| 176 | -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ ) | 176 | -e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ ) |
| 177 | 177 | ||
| 178 | # Cross compiling and selecting different set of gcc/bin-utils | 178 | # Cross compiling and selecting different set of gcc/bin-utils |
| 179 | # --------------------------------------------------------------------------- | 179 | # --------------------------------------------------------------------------- |
| 180 | # | 180 | # |
| 181 | # When performing cross compilation for other architectures ARCH shall be set | 181 | # When performing cross compilation for other architectures ARCH shall be set |
| 182 | # to the target architecture. (See arch/* for the possibilities). | 182 | # to the target architecture. (See arch/* for the possibilities). |
| 183 | # ARCH can be set during invocation of make: | 183 | # ARCH can be set during invocation of make: |
| 184 | # make ARCH=ia64 | 184 | # make ARCH=ia64 |
| 185 | # Another way is to have ARCH set in the environment. | 185 | # Another way is to have ARCH set in the environment. |
| 186 | # The default ARCH is the host where make is executed. | 186 | # The default ARCH is the host where make is executed. |
| 187 | 187 | ||
| 188 | # CROSS_COMPILE specify the prefix used for all executables used | 188 | # CROSS_COMPILE specify the prefix used for all executables used |
| 189 | # during compilation. Only gcc and related bin-utils executables | 189 | # during compilation. Only gcc and related bin-utils executables |
| 190 | # are prefixed with $(CROSS_COMPILE). | 190 | # are prefixed with $(CROSS_COMPILE). |
| 191 | # CROSS_COMPILE can be set on the command line | 191 | # CROSS_COMPILE can be set on the command line |
| 192 | # make CROSS_COMPILE=ia64-linux- | 192 | # make CROSS_COMPILE=ia64-linux- |
| 193 | # Alternatively CROSS_COMPILE can be set in the environment. | 193 | # Alternatively CROSS_COMPILE can be set in the environment. |
| 194 | # A third alternative is to store a setting in .config so that plain | 194 | # A third alternative is to store a setting in .config so that plain |
| 195 | # "make" in the configured kernel build directory always uses that. | 195 | # "make" in the configured kernel build directory always uses that. |
| 196 | # Default value for CROSS_COMPILE is not to prefix executables | 196 | # Default value for CROSS_COMPILE is not to prefix executables |
| 197 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile | 197 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile |
| 198 | ARCH ?= $(SUBARCH) | 198 | ARCH ?= $(SUBARCH) |
| 199 | CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) | 199 | CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) |
| 200 | 200 | ||
| 201 | # Architecture as present in compile.h | 201 | # Architecture as present in compile.h |
| 202 | UTS_MACHINE := $(ARCH) | 202 | UTS_MACHINE := $(ARCH) |
| 203 | SRCARCH := $(ARCH) | 203 | SRCARCH := $(ARCH) |
| 204 | 204 | ||
| 205 | # Additional ARCH settings for x86 | 205 | # Additional ARCH settings for x86 |
| 206 | ifeq ($(ARCH),i386) | 206 | ifeq ($(ARCH),i386) |
| 207 | SRCARCH := x86 | 207 | SRCARCH := x86 |
| 208 | endif | 208 | endif |
| 209 | ifeq ($(ARCH),x86_64) | 209 | ifeq ($(ARCH),x86_64) |
| 210 | SRCARCH := x86 | 210 | SRCARCH := x86 |
| 211 | endif | 211 | endif |
| 212 | 212 | ||
| 213 | # Additional ARCH settings for sparc | 213 | # Additional ARCH settings for sparc |
| 214 | ifeq ($(ARCH),sparc32) | 214 | ifeq ($(ARCH),sparc32) |
| 215 | SRCARCH := sparc | 215 | SRCARCH := sparc |
| 216 | endif | 216 | endif |
| 217 | ifeq ($(ARCH),sparc64) | 217 | ifeq ($(ARCH),sparc64) |
| 218 | SRCARCH := sparc | 218 | SRCARCH := sparc |
| 219 | endif | 219 | endif |
| 220 | 220 | ||
| 221 | # Additional ARCH settings for sh | 221 | # Additional ARCH settings for sh |
| 222 | ifeq ($(ARCH),sh64) | 222 | ifeq ($(ARCH),sh64) |
| 223 | SRCARCH := sh | 223 | SRCARCH := sh |
| 224 | endif | 224 | endif |
| 225 | 225 | ||
| 226 | # Additional ARCH settings for tile | 226 | # Additional ARCH settings for tile |
| 227 | ifeq ($(ARCH),tilepro) | 227 | ifeq ($(ARCH),tilepro) |
| 228 | SRCARCH := tile | 228 | SRCARCH := tile |
| 229 | endif | 229 | endif |
| 230 | ifeq ($(ARCH),tilegx) | 230 | ifeq ($(ARCH),tilegx) |
| 231 | SRCARCH := tile | 231 | SRCARCH := tile |
| 232 | endif | 232 | endif |
| 233 | 233 | ||
| 234 | # Where to locate arch specific headers | 234 | # Where to locate arch specific headers |
| 235 | hdr-arch := $(SRCARCH) | 235 | hdr-arch := $(SRCARCH) |
| 236 | 236 | ||
| 237 | KCONFIG_CONFIG ?= .config | 237 | KCONFIG_CONFIG ?= .config |
| 238 | export KCONFIG_CONFIG | 238 | export KCONFIG_CONFIG |
| 239 | 239 | ||
| 240 | # SHELL used by kbuild | 240 | # SHELL used by kbuild |
| 241 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ | 241 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ |
| 242 | else if [ -x /bin/bash ]; then echo /bin/bash; \ | 242 | else if [ -x /bin/bash ]; then echo /bin/bash; \ |
| 243 | else echo sh; fi ; fi) | 243 | else echo sh; fi ; fi) |
| 244 | 244 | ||
| 245 | HOSTCC = gcc | 245 | HOSTCC = gcc |
| 246 | HOSTCXX = g++ | 246 | HOSTCXX = g++ |
| 247 | HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer | 247 | HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer |
| 248 | HOSTCXXFLAGS = -O2 | 248 | HOSTCXXFLAGS = -O2 |
| 249 | 249 | ||
| 250 | # Decide whether to build built-in, modular, or both. | 250 | # Decide whether to build built-in, modular, or both. |
| 251 | # Normally, just do built-in. | 251 | # Normally, just do built-in. |
| 252 | 252 | ||
| 253 | KBUILD_MODULES := | 253 | KBUILD_MODULES := |
| 254 | KBUILD_BUILTIN := 1 | 254 | KBUILD_BUILTIN := 1 |
| 255 | 255 | ||
| 256 | # If we have only "make modules", don't compile built-in objects. | 256 | # If we have only "make modules", don't compile built-in objects. |
| 257 | # When we're building modules with modversions, we need to consider | 257 | # When we're building modules with modversions, we need to consider |
| 258 | # the built-in objects during the descend as well, in order to | 258 | # the built-in objects during the descend as well, in order to |
| 259 | # make sure the checksums are up to date before we record them. | 259 | # make sure the checksums are up to date before we record them. |
| 260 | 260 | ||
| 261 | ifeq ($(MAKECMDGOALS),modules) | 261 | ifeq ($(MAKECMDGOALS),modules) |
| 262 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) | 262 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) |
| 263 | endif | 263 | endif |
| 264 | 264 | ||
| 265 | # If we have "make <whatever> modules", compile modules | 265 | # If we have "make <whatever> modules", compile modules |
| 266 | # in addition to whatever we do anyway. | 266 | # in addition to whatever we do anyway. |
| 267 | # Just "make" or "make all" shall build modules as well | 267 | # Just "make" or "make all" shall build modules as well |
| 268 | 268 | ||
| 269 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) | 269 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) |
| 270 | KBUILD_MODULES := 1 | 270 | KBUILD_MODULES := 1 |
| 271 | endif | 271 | endif |
| 272 | 272 | ||
| 273 | ifeq ($(MAKECMDGOALS),) | 273 | ifeq ($(MAKECMDGOALS),) |
| 274 | KBUILD_MODULES := 1 | 274 | KBUILD_MODULES := 1 |
| 275 | endif | 275 | endif |
| 276 | 276 | ||
| 277 | export KBUILD_MODULES KBUILD_BUILTIN | 277 | export KBUILD_MODULES KBUILD_BUILTIN |
| 278 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD | 278 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD |
| 279 | 279 | ||
| 280 | # Beautify output | 280 | # Beautify output |
| 281 | # --------------------------------------------------------------------------- | 281 | # --------------------------------------------------------------------------- |
| 282 | # | 282 | # |
| 283 | # Normally, we echo the whole command before executing it. By making | 283 | # Normally, we echo the whole command before executing it. By making |
| 284 | # that echo $($(quiet)$(cmd)), we now have the possibility to set | 284 | # that echo $($(quiet)$(cmd)), we now have the possibility to set |
| 285 | # $(quiet) to choose other forms of output instead, e.g. | 285 | # $(quiet) to choose other forms of output instead, e.g. |
| 286 | # | 286 | # |
| 287 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ | 287 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ |
| 288 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< | 288 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< |
| 289 | # | 289 | # |
| 290 | # If $(quiet) is empty, the whole command will be printed. | 290 | # If $(quiet) is empty, the whole command will be printed. |
| 291 | # If it is set to "quiet_", only the short version will be printed. | 291 | # If it is set to "quiet_", only the short version will be printed. |
| 292 | # If it is set to "silent_", nothing will be printed at all, since | 292 | # If it is set to "silent_", nothing will be printed at all, since |
| 293 | # the variable $(silent_cmd_cc_o_c) doesn't exist. | 293 | # the variable $(silent_cmd_cc_o_c) doesn't exist. |
| 294 | # | 294 | # |
| 295 | # A simple variant is to prefix commands with $(Q) - that's useful | 295 | # A simple variant is to prefix commands with $(Q) - that's useful |
| 296 | # for commands that shall be hidden in non-verbose mode. | 296 | # for commands that shall be hidden in non-verbose mode. |
| 297 | # | 297 | # |
| 298 | # $(Q)ln $@ :< | 298 | # $(Q)ln $@ :< |
| 299 | # | 299 | # |
| 300 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. | 300 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. |
| 301 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. | 301 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. |
| 302 | 302 | ||
| 303 | ifeq ($(KBUILD_VERBOSE),1) | 303 | ifeq ($(KBUILD_VERBOSE),1) |
| 304 | quiet = | 304 | quiet = |
| 305 | Q = | 305 | Q = |
| 306 | else | 306 | else |
| 307 | quiet=quiet_ | 307 | quiet=quiet_ |
| 308 | Q = @ | 308 | Q = @ |
| 309 | endif | 309 | endif |
| 310 | 310 | ||
| 311 | # If the user is running make -s (silent mode), suppress echoing of | 311 | # If the user is running make -s (silent mode), suppress echoing of |
| 312 | # commands | 312 | # commands |
| 313 | 313 | ||
| 314 | ifneq ($(filter s% -s%,$(MAKEFLAGS)),) | 314 | ifneq ($(filter s% -s%,$(MAKEFLAGS)),) |
| 315 | quiet=silent_ | 315 | quiet=silent_ |
| 316 | endif | 316 | endif |
| 317 | 317 | ||
| 318 | export quiet Q KBUILD_VERBOSE | 318 | export quiet Q KBUILD_VERBOSE |
| 319 | 319 | ||
| 320 | 320 | ||
| 321 | # Look for make include files relative to root of kernel src | 321 | # Look for make include files relative to root of kernel src |
| 322 | MAKEFLAGS += --include-dir=$(srctree) | 322 | MAKEFLAGS += --include-dir=$(srctree) |
| 323 | 323 | ||
| 324 | # We need some generic definitions (do not try to remake the file). | 324 | # We need some generic definitions (do not try to remake the file). |
| 325 | $(srctree)/scripts/Kbuild.include: ; | 325 | $(srctree)/scripts/Kbuild.include: ; |
| 326 | include $(srctree)/scripts/Kbuild.include | 326 | include $(srctree)/scripts/Kbuild.include |
| 327 | 327 | ||
| 328 | # Make variables (CC, etc...) | 328 | # Make variables (CC, etc...) |
| 329 | 329 | ||
| 330 | AS = $(CROSS_COMPILE)as | 330 | AS = $(CROSS_COMPILE)as |
| 331 | LD = $(CROSS_COMPILE)ld | 331 | LD = $(CROSS_COMPILE)ld |
| 332 | CC = $(CROSS_COMPILE)gcc | 332 | CC = $(CROSS_COMPILE)gcc |
| 333 | CPP = $(CC) -E | 333 | CPP = $(CC) -E |
| 334 | AR = $(CROSS_COMPILE)ar | 334 | AR = $(CROSS_COMPILE)ar |
| 335 | NM = $(CROSS_COMPILE)nm | 335 | NM = $(CROSS_COMPILE)nm |
| 336 | STRIP = $(CROSS_COMPILE)strip | 336 | STRIP = $(CROSS_COMPILE)strip |
| 337 | OBJCOPY = $(CROSS_COMPILE)objcopy | 337 | OBJCOPY = $(CROSS_COMPILE)objcopy |
| 338 | OBJDUMP = $(CROSS_COMPILE)objdump | 338 | OBJDUMP = $(CROSS_COMPILE)objdump |
| 339 | AWK = awk | 339 | AWK = awk |
| 340 | GENKSYMS = scripts/genksyms/genksyms | 340 | GENKSYMS = scripts/genksyms/genksyms |
| 341 | INSTALLKERNEL := installkernel | 341 | INSTALLKERNEL := installkernel |
| 342 | DEPMOD = /sbin/depmod | 342 | DEPMOD = /sbin/depmod |
| 343 | PERL = perl | 343 | PERL = perl |
| 344 | CHECK = sparse | 344 | CHECK = sparse |
| 345 | 345 | ||
| 346 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ | 346 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ |
| 347 | -Wbitwise -Wno-return-void $(CF) | 347 | -Wbitwise -Wno-return-void $(CF) |
| 348 | CFLAGS_MODULE = | 348 | CFLAGS_MODULE = |
| 349 | AFLAGS_MODULE = | 349 | AFLAGS_MODULE = |
| 350 | LDFLAGS_MODULE = | 350 | LDFLAGS_MODULE = |
| 351 | CFLAGS_KERNEL = | 351 | CFLAGS_KERNEL = |
| 352 | AFLAGS_KERNEL = | 352 | AFLAGS_KERNEL = |
| 353 | CFLAGS_GCOV = -fprofile-arcs -ftest-coverage | 353 | CFLAGS_GCOV = -fprofile-arcs -ftest-coverage |
| 354 | 354 | ||
| 355 | 355 | ||
| 356 | # Use USERINCLUDE when you must reference the UAPI directories only. | 356 | # Use USERINCLUDE when you must reference the UAPI directories only. |
| 357 | USERINCLUDE := \ | 357 | USERINCLUDE := \ |
| 358 | -I$(srctree)/arch/$(hdr-arch)/include/uapi \ | 358 | -I$(srctree)/arch/$(hdr-arch)/include/uapi \ |
| 359 | -Iarch/$(hdr-arch)/include/generated/uapi \ | 359 | -Iarch/$(hdr-arch)/include/generated/uapi \ |
| 360 | -I$(srctree)/include/uapi \ | 360 | -I$(srctree)/include/uapi \ |
| 361 | -Iinclude/generated/uapi \ | 361 | -Iinclude/generated/uapi \ |
| 362 | -include $(srctree)/include/linux/kconfig.h | 362 | -include $(srctree)/include/linux/kconfig.h |
| 363 | 363 | ||
| 364 | # Use LINUXINCLUDE when you must reference the include/ directory. | 364 | # Use LINUXINCLUDE when you must reference the include/ directory. |
| 365 | # Needed to be compatible with the O= option | 365 | # Needed to be compatible with the O= option |
| 366 | LINUXINCLUDE := \ | 366 | LINUXINCLUDE := \ |
| 367 | -I$(srctree)/arch/$(hdr-arch)/include \ | 367 | -I$(srctree)/arch/$(hdr-arch)/include \ |
| 368 | -Iarch/$(hdr-arch)/include/generated \ | 368 | -Iarch/$(hdr-arch)/include/generated \ |
| 369 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ | 369 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ |
| 370 | -Iinclude \ | 370 | -Iinclude \ |
| 371 | $(USERINCLUDE) | 371 | $(USERINCLUDE) |
| 372 | 372 | ||
| 373 | KBUILD_CPPFLAGS := -D__KERNEL__ | 373 | KBUILD_CPPFLAGS := -D__KERNEL__ |
| 374 | 374 | ||
| 375 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ | 375 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
| 376 | -fno-strict-aliasing -fno-common \ | 376 | -fno-strict-aliasing -fno-common \ |
| 377 | -Werror-implicit-function-declaration \ | 377 | -Werror-implicit-function-declaration \ |
| 378 | -Wno-format-security \ | 378 | -Wno-format-security \ |
| 379 | -fno-delete-null-pointer-checks | 379 | -fno-delete-null-pointer-checks |
| 380 | KBUILD_AFLAGS_KERNEL := | 380 | KBUILD_AFLAGS_KERNEL := |
| 381 | KBUILD_CFLAGS_KERNEL := | 381 | KBUILD_CFLAGS_KERNEL := |
| 382 | KBUILD_AFLAGS := -D__ASSEMBLY__ | 382 | KBUILD_AFLAGS := -D__ASSEMBLY__ |
| 383 | KBUILD_AFLAGS_MODULE := -DMODULE | 383 | KBUILD_AFLAGS_MODULE := -DMODULE |
| 384 | KBUILD_CFLAGS_MODULE := -DMODULE | 384 | KBUILD_CFLAGS_MODULE := -DMODULE |
| 385 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds | 385 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds |
| 386 | 386 | ||
| 387 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) | 387 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) |
| 388 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) | 388 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) |
| 389 | KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) | 389 | KERNELVERSION = $(VERSION)$(if $(PATCHLEVEL),.$(PATCHLEVEL)$(if $(SUBLEVEL),.$(SUBLEVEL)))$(EXTRAVERSION) |
| 390 | 390 | ||
| 391 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION | 391 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
| 392 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC | 392 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |
| 393 | export CPP AR NM STRIP OBJCOPY OBJDUMP | 393 | export CPP AR NM STRIP OBJCOPY OBJDUMP |
| 394 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE | 394 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE |
| 395 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS | 395 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS |
| 396 | 396 | ||
| 397 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS | 397 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
| 398 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV | 398 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV |
| 399 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE | 399 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
| 400 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE | 400 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE |
| 401 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL | 401 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL |
| 402 | export KBUILD_ARFLAGS | 402 | export KBUILD_ARFLAGS |
| 403 | 403 | ||
| 404 | # When compiling out-of-tree modules, put MODVERDIR in the module | 404 | # When compiling out-of-tree modules, put MODVERDIR in the module |
| 405 | # tree rather than in the kernel tree. The kernel tree might | 405 | # tree rather than in the kernel tree. The kernel tree might |
| 406 | # even be read-only. | 406 | # even be read-only. |
| 407 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions | 407 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions |
| 408 | 408 | ||
| 409 | # Files to ignore in find ... statements | 409 | # Files to ignore in find ... statements |
| 410 | 410 | ||
| 411 | RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \ | 411 | RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS \ |
| 412 | -o -name .pc -o -name .hg -o -name .git \) -prune -o | 412 | -o -name .pc -o -name .hg -o -name .git \) -prune -o |
| 413 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ | 413 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn \ |
| 414 | --exclude CVS --exclude .pc --exclude .hg --exclude .git | 414 | --exclude CVS --exclude .pc --exclude .hg --exclude .git |
| 415 | 415 | ||
| 416 | # =========================================================================== | 416 | # =========================================================================== |
| 417 | # Rules shared between *config targets and build targets | 417 | # Rules shared between *config targets and build targets |
| 418 | 418 | ||
| 419 | # Basic helpers built in scripts/ | 419 | # Basic helpers built in scripts/ |
| 420 | PHONY += scripts_basic | 420 | PHONY += scripts_basic |
| 421 | scripts_basic: | 421 | scripts_basic: |
| 422 | $(Q)$(MAKE) $(build)=scripts/basic | 422 | $(Q)$(MAKE) $(build)=scripts/basic |
| 423 | $(Q)rm -f .tmp_quiet_recordmcount | 423 | $(Q)rm -f .tmp_quiet_recordmcount |
| 424 | 424 | ||
| 425 | # To avoid any implicit rule to kick in, define an empty command. | 425 | # To avoid any implicit rule to kick in, define an empty command. |
| 426 | scripts/basic/%: scripts_basic ; | 426 | scripts/basic/%: scripts_basic ; |
| 427 | 427 | ||
| 428 | PHONY += outputmakefile | 428 | PHONY += outputmakefile |
| 429 | # outputmakefile generates a Makefile in the output directory, if using a | 429 | # outputmakefile generates a Makefile in the output directory, if using a |
| 430 | # separate output directory. This allows convenient use of make in the | 430 | # separate output directory. This allows convenient use of make in the |
| 431 | # output directory. | 431 | # output directory. |
| 432 | outputmakefile: | 432 | outputmakefile: |
| 433 | ifneq ($(KBUILD_SRC),) | 433 | ifneq ($(KBUILD_SRC),) |
| 434 | $(Q)ln -fsn $(srctree) source | 434 | $(Q)ln -fsn $(srctree) source |
| 435 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ | 435 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ |
| 436 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) | 436 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) |
| 437 | endif | 437 | endif |
| 438 | 438 | ||
| 439 | # Support for using generic headers in asm-generic | 439 | # Support for using generic headers in asm-generic |
| 440 | PHONY += asm-generic | 440 | PHONY += asm-generic |
| 441 | asm-generic: | 441 | asm-generic: |
| 442 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ | 442 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ |
| 443 | src=asm obj=arch/$(SRCARCH)/include/generated/asm | 443 | src=asm obj=arch/$(SRCARCH)/include/generated/asm |
| 444 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ | 444 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.asm-generic \ |
| 445 | src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm | 445 | src=uapi/asm obj=arch/$(SRCARCH)/include/generated/uapi/asm |
| 446 | 446 | ||
| 447 | # To make sure we do not include .config for any of the *config targets | 447 | # To make sure we do not include .config for any of the *config targets |
| 448 | # catch them early, and hand them over to scripts/kconfig/Makefile | 448 | # catch them early, and hand them over to scripts/kconfig/Makefile |
| 449 | # It is allowed to specify more targets when calling make, including | 449 | # It is allowed to specify more targets when calling make, including |
| 450 | # mixing *config targets and build targets. | 450 | # mixing *config targets and build targets. |
| 451 | # For example 'make oldconfig all'. | 451 | # For example 'make oldconfig all'. |
| 452 | # Detect when mixed targets is specified, and make a second invocation | 452 | # Detect when mixed targets is specified, and make a second invocation |
| 453 | # of make so .config is not included in this case either (for *config). | 453 | # of make so .config is not included in this case either (for *config). |
| 454 | 454 | ||
| 455 | version_h := include/generated/uapi/linux/version.h | 455 | version_h := include/generated/uapi/linux/version.h |
| 456 | 456 | ||
| 457 | no-dot-config-targets := clean mrproper distclean \ | 457 | no-dot-config-targets := clean mrproper distclean \ |
| 458 | cscope gtags TAGS tags help %docs check% coccicheck \ | 458 | cscope gtags TAGS tags help %docs check% coccicheck \ |
| 459 | $(version_h) headers_% archheaders archscripts \ | 459 | $(version_h) headers_% archheaders archscripts \ |
| 460 | kernelversion %src-pkg | 460 | kernelversion %src-pkg |
| 461 | 461 | ||
| 462 | config-targets := 0 | 462 | config-targets := 0 |
| 463 | mixed-targets := 0 | 463 | mixed-targets := 0 |
| 464 | dot-config := 1 | 464 | dot-config := 1 |
| 465 | 465 | ||
| 466 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) | 466 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) |
| 467 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) | 467 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) |
| 468 | dot-config := 0 | 468 | dot-config := 0 |
| 469 | endif | 469 | endif |
| 470 | endif | 470 | endif |
| 471 | 471 | ||
| 472 | ifeq ($(KBUILD_EXTMOD),) | 472 | ifeq ($(KBUILD_EXTMOD),) |
| 473 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) | 473 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) |
| 474 | config-targets := 1 | 474 | config-targets := 1 |
| 475 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) | 475 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) |
| 476 | mixed-targets := 1 | 476 | mixed-targets := 1 |
| 477 | endif | 477 | endif |
| 478 | endif | 478 | endif |
| 479 | endif | 479 | endif |
| 480 | 480 | ||
| 481 | ifeq ($(mixed-targets),1) | 481 | ifeq ($(mixed-targets),1) |
| 482 | # =========================================================================== | 482 | # =========================================================================== |
| 483 | # We're called with mixed targets (*config and build targets). | 483 | # We're called with mixed targets (*config and build targets). |
| 484 | # Handle them one by one. | 484 | # Handle them one by one. |
| 485 | 485 | ||
| 486 | %:: FORCE | 486 | %:: FORCE |
| 487 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ | 487 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ |
| 488 | 488 | ||
| 489 | else | 489 | else |
| 490 | ifeq ($(config-targets),1) | 490 | ifeq ($(config-targets),1) |
| 491 | # =========================================================================== | 491 | # =========================================================================== |
| 492 | # *config targets only - make sure prerequisites are updated, and descend | 492 | # *config targets only - make sure prerequisites are updated, and descend |
| 493 | # in scripts/kconfig to make the *config target | 493 | # in scripts/kconfig to make the *config target |
| 494 | 494 | ||
| 495 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. | 495 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. |
| 496 | # KBUILD_DEFCONFIG may point out an alternative default configuration | 496 | # KBUILD_DEFCONFIG may point out an alternative default configuration |
| 497 | # used for 'make defconfig' | 497 | # used for 'make defconfig' |
| 498 | include $(srctree)/arch/$(SRCARCH)/Makefile | 498 | include $(srctree)/arch/$(SRCARCH)/Makefile |
| 499 | export KBUILD_DEFCONFIG KBUILD_KCONFIG | 499 | export KBUILD_DEFCONFIG KBUILD_KCONFIG |
| 500 | 500 | ||
| 501 | config: scripts_basic outputmakefile FORCE | 501 | config: scripts_basic outputmakefile FORCE |
| 502 | $(Q)mkdir -p include/linux include/config | 502 | $(Q)mkdir -p include/linux include/config |
| 503 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 503 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
| 504 | 504 | ||
| 505 | %config: scripts_basic outputmakefile FORCE | 505 | %config: scripts_basic outputmakefile FORCE |
| 506 | $(Q)mkdir -p include/linux include/config | 506 | $(Q)mkdir -p include/linux include/config |
| 507 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 507 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
| 508 | 508 | ||
| 509 | else | 509 | else |
| 510 | # =========================================================================== | 510 | # =========================================================================== |
| 511 | # Build targets only - this includes vmlinux, arch specific targets, clean | 511 | # Build targets only - this includes vmlinux, arch specific targets, clean |
| 512 | # targets and others. In general all targets except *config targets. | 512 | # targets and others. In general all targets except *config targets. |
| 513 | 513 | ||
| 514 | ifeq ($(KBUILD_EXTMOD),) | 514 | ifeq ($(KBUILD_EXTMOD),) |
| 515 | # Additional helpers built in scripts/ | 515 | # Additional helpers built in scripts/ |
| 516 | # Carefully list dependencies so we do not try to build scripts twice | 516 | # Carefully list dependencies so we do not try to build scripts twice |
| 517 | # in parallel | 517 | # in parallel |
| 518 | PHONY += scripts | 518 | PHONY += scripts |
| 519 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \ | 519 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf \ |
| 520 | asm-generic | 520 | asm-generic |
| 521 | $(Q)$(MAKE) $(build)=$(@) | 521 | $(Q)$(MAKE) $(build)=$(@) |
| 522 | 522 | ||
| 523 | # Objects we will link into vmlinux / subdirs we need to visit | 523 | # Objects we will link into vmlinux / subdirs we need to visit |
| 524 | init-y := init/ | 524 | init-y := init/ |
| 525 | drivers-y := drivers/ sound/ firmware/ | 525 | drivers-y := drivers/ sound/ firmware/ |
| 526 | net-y := net/ | 526 | net-y := net/ |
| 527 | libs-y := lib/ | 527 | libs-y := lib/ |
| 528 | core-y := usr/ | 528 | core-y := usr/ |
| 529 | endif # KBUILD_EXTMOD | 529 | endif # KBUILD_EXTMOD |
| 530 | 530 | ||
| 531 | ifeq ($(dot-config),1) | 531 | ifeq ($(dot-config),1) |
| 532 | # Read in config | 532 | # Read in config |
| 533 | -include include/config/auto.conf | 533 | -include include/config/auto.conf |
| 534 | 534 | ||
| 535 | ifeq ($(KBUILD_EXTMOD),) | 535 | ifeq ($(KBUILD_EXTMOD),) |
| 536 | # Read in dependencies to all Kconfig* files, make sure to run | 536 | # Read in dependencies to all Kconfig* files, make sure to run |
| 537 | # oldconfig if changes are detected. | 537 | # oldconfig if changes are detected. |
| 538 | -include include/config/auto.conf.cmd | 538 | -include include/config/auto.conf.cmd |
| 539 | 539 | ||
| 540 | # To avoid any implicit rule to kick in, define an empty command | 540 | # To avoid any implicit rule to kick in, define an empty command |
| 541 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; | 541 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; |
| 542 | 542 | ||
| 543 | # If .config is newer than include/config/auto.conf, someone tinkered | 543 | # If .config is newer than include/config/auto.conf, someone tinkered |
| 544 | # with it and forgot to run make oldconfig. | 544 | # with it and forgot to run make oldconfig. |
| 545 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so | 545 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so |
| 546 | # we execute the config step to be sure to catch updated Kconfig files | 546 | # we execute the config step to be sure to catch updated Kconfig files |
| 547 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd | 547 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
| 548 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig | 548 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig |
| 549 | else | 549 | else |
| 550 | # external modules needs include/generated/autoconf.h and include/config/auto.conf | 550 | # external modules needs include/generated/autoconf.h and include/config/auto.conf |
| 551 | # but do not care if they are up-to-date. Use auto.conf to trigger the test | 551 | # but do not care if they are up-to-date. Use auto.conf to trigger the test |
| 552 | PHONY += include/config/auto.conf | 552 | PHONY += include/config/auto.conf |
| 553 | 553 | ||
| 554 | include/config/auto.conf: | 554 | include/config/auto.conf: |
| 555 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ | 555 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ |
| 556 | echo >&2; \ | 556 | echo >&2; \ |
| 557 | echo >&2 " ERROR: Kernel configuration is invalid."; \ | 557 | echo >&2 " ERROR: Kernel configuration is invalid."; \ |
| 558 | echo >&2 " include/generated/autoconf.h or $@ are missing.";\ | 558 | echo >&2 " include/generated/autoconf.h or $@ are missing.";\ |
| 559 | echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ | 559 | echo >&2 " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ |
| 560 | echo >&2 ; \ | 560 | echo >&2 ; \ |
| 561 | /bin/false) | 561 | /bin/false) |
| 562 | 562 | ||
| 563 | endif # KBUILD_EXTMOD | 563 | endif # KBUILD_EXTMOD |
| 564 | 564 | ||
| 565 | else | 565 | else |
| 566 | # Dummy target needed, because used as prerequisite | 566 | # Dummy target needed, because used as prerequisite |
| 567 | include/config/auto.conf: ; | 567 | include/config/auto.conf: ; |
| 568 | endif # $(dot-config) | 568 | endif # $(dot-config) |
| 569 | 569 | ||
| 570 | # The all: target is the default when no target is given on the | 570 | # The all: target is the default when no target is given on the |
| 571 | # command line. | 571 | # command line. |
| 572 | # This allow a user to issue only 'make' to build a kernel including modules | 572 | # This allow a user to issue only 'make' to build a kernel including modules |
| 573 | # Defaults to vmlinux, but the arch makefile usually adds further targets | 573 | # Defaults to vmlinux, but the arch makefile usually adds further targets |
| 574 | all: vmlinux | 574 | all: vmlinux |
| 575 | 575 | ||
| 576 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE | 576 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
| 577 | KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) | 577 | KBUILD_CFLAGS += -Os $(call cc-disable-warning,maybe-uninitialized,) |
| 578 | else | 578 | else |
| 579 | KBUILD_CFLAGS += -O2 | 579 | KBUILD_CFLAGS += -O2 |
| 580 | endif | 580 | endif |
| 581 | 581 | ||
| 582 | include $(srctree)/arch/$(SRCARCH)/Makefile | 582 | include $(srctree)/arch/$(SRCARCH)/Makefile |
| 583 | 583 | ||
| 584 | ifdef CONFIG_READABLE_ASM | 584 | ifdef CONFIG_READABLE_ASM |
| 585 | # Disable optimizations that make assembler listings hard to read. | 585 | # Disable optimizations that make assembler listings hard to read. |
| 586 | # reorder blocks reorders the control in the function | 586 | # reorder blocks reorders the control in the function |
| 587 | # ipa clone creates specialized cloned functions | 587 | # ipa clone creates specialized cloned functions |
| 588 | # partial inlining inlines only parts of functions | 588 | # partial inlining inlines only parts of functions |
| 589 | KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ | 589 | KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ |
| 590 | $(call cc-option,-fno-ipa-cp-clone,) \ | 590 | $(call cc-option,-fno-ipa-cp-clone,) \ |
| 591 | $(call cc-option,-fno-partial-inlining) | 591 | $(call cc-option,-fno-partial-inlining) |
| 592 | endif | 592 | endif |
| 593 | 593 | ||
| 594 | ifneq ($(CONFIG_FRAME_WARN),0) | 594 | ifneq ($(CONFIG_FRAME_WARN),0) |
| 595 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) | 595 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) |
| 596 | endif | 596 | endif |
| 597 | 597 | ||
| 598 | # Force gcc to behave correct even for buggy distributions | 598 | # Force gcc to behave correct even for buggy distributions |
| 599 | ifndef CONFIG_CC_STACKPROTECTOR | 599 | ifndef CONFIG_CC_STACKPROTECTOR |
| 600 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) | 600 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) |
| 601 | endif | 601 | endif |
| 602 | 602 | ||
| 603 | # This warning generated too much noise in a regular build. | 603 | # This warning generated too much noise in a regular build. |
| 604 | # Use make W=1 to enable this warning (see scripts/Makefile.build) | 604 | # Use make W=1 to enable this warning (see scripts/Makefile.build) |
| 605 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) | 605 | KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable) |
| 606 | 606 | ||
| 607 | ifdef CONFIG_FRAME_POINTER | 607 | ifdef CONFIG_FRAME_POINTER |
| 608 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls | 608 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
| 609 | else | 609 | else |
| 610 | # Some targets (ARM with Thumb2, for example), can't be built with frame | 610 | # Some targets (ARM with Thumb2, for example), can't be built with frame |
| 611 | # pointers. For those, we don't have FUNCTION_TRACER automatically | 611 | # pointers. For those, we don't have FUNCTION_TRACER automatically |
| 612 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is | 612 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is |
| 613 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use | 613 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use |
| 614 | # -fomit-frame-pointer with FUNCTION_TRACER. | 614 | # -fomit-frame-pointer with FUNCTION_TRACER. |
| 615 | ifndef CONFIG_FUNCTION_TRACER | 615 | ifndef CONFIG_FUNCTION_TRACER |
| 616 | KBUILD_CFLAGS += -fomit-frame-pointer | 616 | KBUILD_CFLAGS += -fomit-frame-pointer |
| 617 | endif | 617 | endif |
| 618 | endif | 618 | endif |
| 619 | 619 | ||
| 620 | ifdef CONFIG_DEBUG_INFO | 620 | ifdef CONFIG_DEBUG_INFO |
| 621 | KBUILD_CFLAGS += -g | 621 | KBUILD_CFLAGS += -g |
| 622 | KBUILD_AFLAGS += -gdwarf-2 | 622 | KBUILD_AFLAGS += -gdwarf-2 |
| 623 | endif | 623 | endif |
| 624 | 624 | ||
| 625 | ifdef CONFIG_DEBUG_INFO_REDUCED | 625 | ifdef CONFIG_DEBUG_INFO_REDUCED |
| 626 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ | 626 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) \ |
| 627 | $(call cc-option,-fno-var-tracking) | 627 | $(call cc-option,-fno-var-tracking) |
| 628 | endif | 628 | endif |
| 629 | 629 | ||
| 630 | ifdef CONFIG_FUNCTION_TRACER | 630 | ifdef CONFIG_FUNCTION_TRACER |
| 631 | ifdef CONFIG_HAVE_FENTRY | 631 | ifdef CONFIG_HAVE_FENTRY |
| 632 | CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) | 632 | CC_USING_FENTRY := $(call cc-option, -mfentry -DCC_USING_FENTRY) |
| 633 | endif | 633 | endif |
| 634 | KBUILD_CFLAGS += -pg $(CC_USING_FENTRY) | 634 | KBUILD_CFLAGS += -pg $(CC_USING_FENTRY) |
| 635 | KBUILD_AFLAGS += $(CC_USING_FENTRY) | 635 | KBUILD_AFLAGS += $(CC_USING_FENTRY) |
| 636 | ifdef CONFIG_DYNAMIC_FTRACE | 636 | ifdef CONFIG_DYNAMIC_FTRACE |
| 637 | ifdef CONFIG_HAVE_C_RECORDMCOUNT | 637 | ifdef CONFIG_HAVE_C_RECORDMCOUNT |
| 638 | BUILD_C_RECORDMCOUNT := y | 638 | BUILD_C_RECORDMCOUNT := y |
| 639 | export BUILD_C_RECORDMCOUNT | 639 | export BUILD_C_RECORDMCOUNT |
| 640 | endif | 640 | endif |
| 641 | endif | 641 | endif |
| 642 | endif | 642 | endif |
| 643 | 643 | ||
| 644 | # We trigger additional mismatches with less inlining | 644 | # We trigger additional mismatches with less inlining |
| 645 | ifdef CONFIG_DEBUG_SECTION_MISMATCH | 645 | ifdef CONFIG_DEBUG_SECTION_MISMATCH |
| 646 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) | 646 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) |
| 647 | endif | 647 | endif |
| 648 | 648 | ||
| 649 | # arch Makefile may override CC so keep this after arch Makefile is included | 649 | # arch Makefile may override CC so keep this after arch Makefile is included |
| 650 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) | 650 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
| 651 | CHECKFLAGS += $(NOSTDINC_FLAGS) | 651 | CHECKFLAGS += $(NOSTDINC_FLAGS) |
| 652 | 652 | ||
| 653 | # warn about C99 declaration after statement | 653 | # warn about C99 declaration after statement |
| 654 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) | 654 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
| 655 | 655 | ||
| 656 | # disable pointer signed / unsigned warnings in gcc 4.0 | 656 | # disable pointer signed / unsigned warnings in gcc 4.0 |
| 657 | KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) | 657 | KBUILD_CFLAGS += $(call cc-disable-warning, pointer-sign) |
| 658 | 658 | ||
| 659 | # disable invalid "can't wrap" optimizations for signed / pointers | 659 | # disable invalid "can't wrap" optimizations for signed / pointers |
| 660 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) | 660 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) |
| 661 | 661 | ||
| 662 | # conserve stack if available | 662 | # conserve stack if available |
| 663 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) | 663 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) |
| 664 | 664 | ||
| 665 | # disallow errors like 'EXPORT_GPL(foo);' with missing header | 665 | # disallow errors like 'EXPORT_GPL(foo);' with missing header |
| 666 | KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) | 666 | KBUILD_CFLAGS += $(call cc-option,-Werror=implicit-int) |
| 667 | 667 | ||
| 668 | # require functions to have arguments in prototypes, not empty 'int foo()' | 668 | # require functions to have arguments in prototypes, not empty 'int foo()' |
| 669 | KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) | 669 | KBUILD_CFLAGS += $(call cc-option,-Werror=strict-prototypes) |
| 670 | 670 | ||
| 671 | # use the deterministic mode of AR if available | 671 | # use the deterministic mode of AR if available |
| 672 | KBUILD_ARFLAGS := $(call ar-option,D) | 672 | KBUILD_ARFLAGS := $(call ar-option,D) |
| 673 | 673 | ||
| 674 | # check for 'asm goto' | 674 | # check for 'asm goto' |
| 675 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) | 675 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) |
| 676 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO | 676 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO |
| 677 | endif | 677 | endif |
| 678 | 678 | ||
| 679 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments | 679 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
| 680 | KBUILD_CPPFLAGS += $(KCPPFLAGS) | 680 | KBUILD_CPPFLAGS += $(KCPPFLAGS) |
| 681 | KBUILD_AFLAGS += $(KAFLAGS) | 681 | KBUILD_AFLAGS += $(KAFLAGS) |
| 682 | KBUILD_CFLAGS += $(KCFLAGS) | 682 | KBUILD_CFLAGS += $(KCFLAGS) |
| 683 | 683 | ||
| 684 | # Use --build-id when available. | 684 | # Use --build-id when available. |
| 685 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ | 685 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ |
| 686 | $(call cc-ldoption, -Wl$(comma)--build-id,)) | 686 | $(call cc-ldoption, -Wl$(comma)--build-id,)) |
| 687 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) | 687 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) |
| 688 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) | 688 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) |
| 689 | 689 | ||
| 690 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) | 690 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) |
| 691 | LDFLAGS_vmlinux += $(call ld-option, -X,) | 691 | LDFLAGS_vmlinux += $(call ld-option, -X,) |
| 692 | endif | 692 | endif |
| 693 | 693 | ||
| 694 | # Default kernel image to build when no specific target is given. | 694 | # Default kernel image to build when no specific target is given. |
| 695 | # KBUILD_IMAGE may be overruled on the command line or | 695 | # KBUILD_IMAGE may be overruled on the command line or |
| 696 | # set in the environment | 696 | # set in the environment |
| 697 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over | 697 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over |
| 698 | # this default value | 698 | # this default value |
| 699 | export KBUILD_IMAGE ?= vmlinux | 699 | export KBUILD_IMAGE ?= vmlinux |
| 700 | 700 | ||
| 701 | # | 701 | # |
| 702 | # INSTALL_PATH specifies where to place the updated kernel and system map | 702 | # INSTALL_PATH specifies where to place the updated kernel and system map |
| 703 | # images. Default is /boot, but you can set it to other values | 703 | # images. Default is /boot, but you can set it to other values |
| 704 | export INSTALL_PATH ?= /boot | 704 | export INSTALL_PATH ?= /boot |
| 705 | 705 | ||
| 706 | # | 706 | # |
| 707 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory | 707 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory |
| 708 | # relocations required by build roots. This is not defined in the | 708 | # relocations required by build roots. This is not defined in the |
| 709 | # makefile but the argument can be passed to make if needed. | 709 | # makefile but the argument can be passed to make if needed. |
| 710 | # | 710 | # |
| 711 | 711 | ||
| 712 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) | 712 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
| 713 | export MODLIB | 713 | export MODLIB |
| 714 | 714 | ||
| 715 | # | 715 | # |
| 716 | # INSTALL_MOD_STRIP, if defined, will cause modules to be | 716 | # INSTALL_MOD_STRIP, if defined, will cause modules to be |
| 717 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then | 717 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then |
| 718 | # the default option --strip-debug will be used. Otherwise, | 718 | # the default option --strip-debug will be used. Otherwise, |
| 719 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. | 719 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. |
| 720 | 720 | ||
| 721 | ifdef INSTALL_MOD_STRIP | 721 | ifdef INSTALL_MOD_STRIP |
| 722 | ifeq ($(INSTALL_MOD_STRIP),1) | 722 | ifeq ($(INSTALL_MOD_STRIP),1) |
| 723 | mod_strip_cmd = $(STRIP) --strip-debug | 723 | mod_strip_cmd = $(STRIP) --strip-debug |
| 724 | else | 724 | else |
| 725 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) | 725 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
| 726 | endif # INSTALL_MOD_STRIP=1 | 726 | endif # INSTALL_MOD_STRIP=1 |
| 727 | else | 727 | else |
| 728 | mod_strip_cmd = true | 728 | mod_strip_cmd = true |
| 729 | endif # INSTALL_MOD_STRIP | 729 | endif # INSTALL_MOD_STRIP |
| 730 | export mod_strip_cmd | 730 | export mod_strip_cmd |
| 731 | 731 | ||
| 732 | # Select initial ramdisk compression format, default is gzip(1). | 732 | # Select initial ramdisk compression format, default is gzip(1). |
| 733 | # This shall be used by the dracut(8) tool while creating an initramfs image. | 733 | # This shall be used by the dracut(8) tool while creating an initramfs image. |
| 734 | # | 734 | # |
| 735 | INITRD_COMPRESS-y := gzip | 735 | INITRD_COMPRESS-y := gzip |
| 736 | INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2 | 736 | INITRD_COMPRESS-$(CONFIG_RD_BZIP2) := bzip2 |
| 737 | INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma | 737 | INITRD_COMPRESS-$(CONFIG_RD_LZMA) := lzma |
| 738 | INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz | 738 | INITRD_COMPRESS-$(CONFIG_RD_XZ) := xz |
| 739 | INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo | 739 | INITRD_COMPRESS-$(CONFIG_RD_LZO) := lzo |
| 740 | INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4 | 740 | INITRD_COMPRESS-$(CONFIG_RD_LZ4) := lz4 |
| 741 | # do not export INITRD_COMPRESS, since we didn't actually | 741 | # do not export INITRD_COMPRESS, since we didn't actually |
| 742 | # choose a sane default compression above. | 742 | # choose a sane default compression above. |
| 743 | # export INITRD_COMPRESS := $(INITRD_COMPRESS-y) | 743 | # export INITRD_COMPRESS := $(INITRD_COMPRESS-y) |
| 744 | 744 | ||
| 745 | ifdef CONFIG_MODULE_SIG_ALL | 745 | ifdef CONFIG_MODULE_SIG_ALL |
| 746 | MODSECKEY = ./signing_key.priv | 746 | MODSECKEY = ./signing_key.priv |
| 747 | MODPUBKEY = ./signing_key.x509 | 747 | MODPUBKEY = ./signing_key.x509 |
| 748 | export MODPUBKEY | 748 | export MODPUBKEY |
| 749 | mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) | 749 | mod_sign_cmd = perl $(srctree)/scripts/sign-file $(CONFIG_MODULE_SIG_HASH) $(MODSECKEY) $(MODPUBKEY) |
| 750 | else | 750 | else |
| 751 | mod_sign_cmd = true | 751 | mod_sign_cmd = true |
| 752 | endif | 752 | endif |
| 753 | export mod_sign_cmd | 753 | export mod_sign_cmd |
| 754 | 754 | ||
| 755 | 755 | ||
| 756 | ifeq ($(KBUILD_EXTMOD),) | 756 | ifeq ($(KBUILD_EXTMOD),) |
| 757 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ | 757 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
| 758 | 758 | ||
| 759 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ | 759 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ |
| 760 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ | 760 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ |
| 761 | $(net-y) $(net-m) $(libs-y) $(libs-m))) | 761 | $(net-y) $(net-m) $(libs-y) $(libs-m))) |
| 762 | 762 | ||
| 763 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ | 763 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ |
| 764 | $(init-n) $(init-) \ | 764 | $(init-n) $(init-) \ |
| 765 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ | 765 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ |
| 766 | $(net-n) $(net-) $(libs-n) $(libs-)))) | 766 | $(net-n) $(net-) $(libs-n) $(libs-)))) |
| 767 | 767 | ||
| 768 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) | 768 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) |
| 769 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) | 769 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) |
| 770 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) | 770 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) |
| 771 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) | 771 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) |
| 772 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) | 772 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) |
| 773 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) | 773 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) |
| 774 | libs-y := $(libs-y1) $(libs-y2) | 774 | libs-y := $(libs-y1) $(libs-y2) |
| 775 | 775 | ||
| 776 | # Externally visible symbols (used by link-vmlinux.sh) | 776 | # Externally visible symbols (used by link-vmlinux.sh) |
| 777 | export KBUILD_VMLINUX_INIT := $(head-y) $(init-y) | 777 | export KBUILD_VMLINUX_INIT := $(head-y) $(init-y) |
| 778 | export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) | 778 | export KBUILD_VMLINUX_MAIN := $(core-y) $(libs-y) $(drivers-y) $(net-y) |
| 779 | export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds | 779 | export KBUILD_LDS := arch/$(SRCARCH)/kernel/vmlinux.lds |
| 780 | export LDFLAGS_vmlinux | 780 | export LDFLAGS_vmlinux |
| 781 | # used by scripts/pacmage/Makefile | 781 | # used by scripts/pacmage/Makefile |
| 782 | export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt) | 782 | export KBUILD_ALLDIRS := $(sort $(filter-out arch/%,$(vmlinux-alldirs)) arch Documentation include samples scripts tools virt) |
| 783 | 783 | ||
| 784 | vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) | 784 | vmlinux-deps := $(KBUILD_LDS) $(KBUILD_VMLINUX_INIT) $(KBUILD_VMLINUX_MAIN) |
| 785 | 785 | ||
| 786 | # Final link of vmlinux | 786 | # Final link of vmlinux |
| 787 | cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) | 787 | cmd_link-vmlinux = $(CONFIG_SHELL) $< $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) |
| 788 | quiet_cmd_link-vmlinux = LINK $@ | 788 | quiet_cmd_link-vmlinux = LINK $@ |
| 789 | 789 | ||
| 790 | # Include targets which we want to | 790 | # Include targets which we want to |
| 791 | # execute if the rest of the kernel build went well. | 791 | # execute if the rest of the kernel build went well. |
| 792 | vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE | 792 | vmlinux: scripts/link-vmlinux.sh $(vmlinux-deps) FORCE |
| 793 | ifdef CONFIG_HEADERS_CHECK | 793 | ifdef CONFIG_HEADERS_CHECK |
| 794 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check | 794 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
| 795 | endif | 795 | endif |
| 796 | ifdef CONFIG_SAMPLES | 796 | ifdef CONFIG_SAMPLES |
| 797 | $(Q)$(MAKE) $(build)=samples | 797 | $(Q)$(MAKE) $(build)=samples |
| 798 | endif | 798 | endif |
| 799 | ifdef CONFIG_BUILD_DOCSRC | 799 | ifdef CONFIG_BUILD_DOCSRC |
| 800 | $(Q)$(MAKE) $(build)=Documentation | 800 | $(Q)$(MAKE) $(build)=Documentation |
| 801 | endif | 801 | endif |
| 802 | +$(call if_changed,link-vmlinux) | 802 | +$(call if_changed,link-vmlinux) |
| 803 | 803 | ||
| 804 | # The actual objects are generated when descending, | 804 | # The actual objects are generated when descending, |
| 805 | # make sure no implicit rule kicks in | 805 | # make sure no implicit rule kicks in |
| 806 | $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; | 806 | $(sort $(vmlinux-deps)): $(vmlinux-dirs) ; |
| 807 | 807 | ||
| 808 | # Handle descending into subdirectories listed in $(vmlinux-dirs) | 808 | # Handle descending into subdirectories listed in $(vmlinux-dirs) |
| 809 | # Preset locale variables to speed up the build process. Limit locale | 809 | # Preset locale variables to speed up the build process. Limit locale |
| 810 | # tweaks to this spot to avoid wrong language settings when running | 810 | # tweaks to this spot to avoid wrong language settings when running |
| 811 | # make menuconfig etc. | 811 | # make menuconfig etc. |
| 812 | # Error messages still appears in the original language | 812 | # Error messages still appears in the original language |
| 813 | 813 | ||
| 814 | PHONY += $(vmlinux-dirs) | 814 | PHONY += $(vmlinux-dirs) |
| 815 | $(vmlinux-dirs): prepare scripts | 815 | $(vmlinux-dirs): prepare scripts |
| 816 | $(Q)$(MAKE) $(build)=$@ | 816 | $(Q)$(MAKE) $(build)=$@ |
| 817 | 817 | ||
| 818 | define filechk_kernel.release | 818 | define filechk_kernel.release |
| 819 | echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" | 819 | echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
| 820 | endef | 820 | endef |
| 821 | 821 | ||
| 822 | # Store (new) KERNELRELEASE string in include/config/kernel.release | 822 | # Store (new) KERNELRELEASE string in include/config/kernel.release |
| 823 | include/config/kernel.release: include/config/auto.conf FORCE | 823 | include/config/kernel.release: include/config/auto.conf FORCE |
| 824 | $(call filechk,kernel.release) | 824 | $(call filechk,kernel.release) |
| 825 | 825 | ||
| 826 | 826 | ||
| 827 | # Things we need to do before we recursively start building the kernel | 827 | # Things we need to do before we recursively start building the kernel |
| 828 | # or the modules are listed in "prepare". | 828 | # or the modules are listed in "prepare". |
| 829 | # A multi level approach is used. prepareN is processed before prepareN-1. | 829 | # A multi level approach is used. prepareN is processed before prepareN-1. |
| 830 | # archprepare is used in arch Makefiles and when processed asm symlink, | 830 | # archprepare is used in arch Makefiles and when processed asm symlink, |
| 831 | # version.h and scripts_basic is processed / created. | 831 | # version.h and scripts_basic is processed / created. |
| 832 | 832 | ||
| 833 | # Listed in dependency order | 833 | # Listed in dependency order |
| 834 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 | 834 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
| 835 | 835 | ||
| 836 | # prepare3 is used to check if we are building in a separate output directory, | 836 | # prepare3 is used to check if we are building in a separate output directory, |
| 837 | # and if so do: | 837 | # and if so do: |
| 838 | # 1) Check that make has not been executed in the kernel src $(srctree) | 838 | # 1) Check that make has not been executed in the kernel src $(srctree) |
| 839 | prepare3: include/config/kernel.release | 839 | prepare3: include/config/kernel.release |
| 840 | ifneq ($(KBUILD_SRC),) | 840 | ifneq ($(KBUILD_SRC),) |
| 841 | @$(kecho) ' Using $(srctree) as source for kernel' | 841 | @$(kecho) ' Using $(srctree) as source for kernel' |
| 842 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ | 842 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
| 843 | echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ | 843 | echo >&2 " $(srctree) is not clean, please run 'make mrproper'"; \ |
| 844 | echo >&2 " in the '$(srctree)' directory.";\ | 844 | echo >&2 " in the '$(srctree)' directory.";\ |
| 845 | /bin/false; \ | 845 | /bin/false; \ |
| 846 | fi; | 846 | fi; |
| 847 | endif | 847 | endif |
| 848 | 848 | ||
| 849 | # prepare2 creates a makefile if using a separate output directory | 849 | # prepare2 creates a makefile if using a separate output directory |
| 850 | prepare2: prepare3 outputmakefile asm-generic | 850 | prepare2: prepare3 outputmakefile asm-generic |
| 851 | 851 | ||
| 852 | prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ | 852 | prepare1: prepare2 $(version_h) include/generated/utsrelease.h \ |
| 853 | include/config/auto.conf | 853 | include/config/auto.conf |
| 854 | $(cmd_crmodverdir) | 854 | $(cmd_crmodverdir) |
| 855 | 855 | ||
| 856 | archprepare: archheaders archscripts prepare1 scripts_basic | 856 | archprepare: archheaders archscripts prepare1 scripts_basic |
| 857 | 857 | ||
| 858 | prepare0: archprepare FORCE | 858 | prepare0: archprepare FORCE |
| 859 | $(Q)$(MAKE) $(build)=. | 859 | $(Q)$(MAKE) $(build)=. |
| 860 | 860 | ||
| 861 | # All the preparing.. | 861 | # All the preparing.. |
| 862 | prepare: prepare0 | 862 | prepare: prepare0 |
| 863 | 863 | ||
| 864 | # Generate some files | 864 | # Generate some files |
| 865 | # --------------------------------------------------------------------------- | 865 | # --------------------------------------------------------------------------- |
| 866 | 866 | ||
| 867 | # KERNELRELEASE can change from a few different places, meaning version.h | 867 | # KERNELRELEASE can change from a few different places, meaning version.h |
| 868 | # needs to be updated, so this check is forced on all builds | 868 | # needs to be updated, so this check is forced on all builds |
| 869 | 869 | ||
| 870 | uts_len := 64 | 870 | uts_len := 64 |
| 871 | define filechk_utsrelease.h | 871 | define filechk_utsrelease.h |
| 872 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ | 872 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ |
| 873 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ | 873 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ |
| 874 | exit 1; \ | 874 | exit 1; \ |
| 875 | fi; \ | 875 | fi; \ |
| 876 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) | 876 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) |
| 877 | endef | 877 | endef |
| 878 | 878 | ||
| 879 | define filechk_version.h | 879 | define filechk_version.h |
| 880 | (echo \#define LINUX_VERSION_CODE $(shell \ | 880 | (echo \#define LINUX_VERSION_CODE $(shell \ |
| 881 | expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ | 881 | expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \ |
| 882 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) | 882 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) |
| 883 | endef | 883 | endef |
| 884 | 884 | ||
| 885 | $(version_h): $(srctree)/Makefile FORCE | 885 | $(version_h): $(srctree)/Makefile FORCE |
| 886 | $(call filechk,version.h) | 886 | $(call filechk,version.h) |
| 887 | 887 | ||
| 888 | include/generated/utsrelease.h: include/config/kernel.release FORCE | 888 | include/generated/utsrelease.h: include/config/kernel.release FORCE |
| 889 | $(call filechk,utsrelease.h) | 889 | $(call filechk,utsrelease.h) |
| 890 | 890 | ||
| 891 | PHONY += headerdep | 891 | PHONY += headerdep |
| 892 | headerdep: | 892 | headerdep: |
| 893 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ | 893 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ |
| 894 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include | 894 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include |
| 895 | 895 | ||
| 896 | # --------------------------------------------------------------------------- | 896 | # --------------------------------------------------------------------------- |
| 897 | 897 | ||
| 898 | PHONY += depend dep | 898 | PHONY += depend dep |
| 899 | depend dep: | 899 | depend dep: |
| 900 | @echo '*** Warning: make $@ is unnecessary now.' | 900 | @echo '*** Warning: make $@ is unnecessary now.' |
| 901 | 901 | ||
| 902 | # --------------------------------------------------------------------------- | 902 | # --------------------------------------------------------------------------- |
| 903 | # Firmware install | 903 | # Firmware install |
| 904 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware | 904 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware |
| 905 | export INSTALL_FW_PATH | 905 | export INSTALL_FW_PATH |
| 906 | 906 | ||
| 907 | PHONY += firmware_install | 907 | PHONY += firmware_install |
| 908 | firmware_install: FORCE | 908 | firmware_install: FORCE |
| 909 | @mkdir -p $(objtree)/firmware | 909 | @mkdir -p $(objtree)/firmware |
| 910 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install | 910 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install |
| 911 | 911 | ||
| 912 | # --------------------------------------------------------------------------- | 912 | # --------------------------------------------------------------------------- |
| 913 | # Kernel headers | 913 | # Kernel headers |
| 914 | 914 | ||
| 915 | #Default location for installed headers | 915 | #Default location for installed headers |
| 916 | export INSTALL_HDR_PATH = $(objtree)/usr | 916 | export INSTALL_HDR_PATH = $(objtree)/usr |
| 917 | 917 | ||
| 918 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj | 918 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj |
| 919 | 919 | ||
| 920 | # If we do an all arch process set dst to asm-$(hdr-arch) | 920 | # If we do an all arch process set dst to asm-$(hdr-arch) |
| 921 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) | 921 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) |
| 922 | 922 | ||
| 923 | PHONY += archheaders | 923 | PHONY += archheaders |
| 924 | archheaders: | 924 | archheaders: |
| 925 | 925 | ||
| 926 | PHONY += archscripts | 926 | PHONY += archscripts |
| 927 | archscripts: | 927 | archscripts: |
| 928 | 928 | ||
| 929 | PHONY += __headers | 929 | PHONY += __headers |
| 930 | __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE | 930 | __headers: $(version_h) scripts_basic asm-generic archheaders archscripts FORCE |
| 931 | $(Q)$(MAKE) $(build)=scripts build_unifdef | 931 | $(Q)$(MAKE) $(build)=scripts build_unifdef |
| 932 | 932 | ||
| 933 | PHONY += headers_install_all | 933 | PHONY += headers_install_all |
| 934 | headers_install_all: | 934 | headers_install_all: |
| 935 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install | 935 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install |
| 936 | 936 | ||
| 937 | PHONY += headers_install | 937 | PHONY += headers_install |
| 938 | headers_install: __headers | 938 | headers_install: __headers |
| 939 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ | 939 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/uapi/asm/Kbuild),, \ |
| 940 | $(error Headers not exportable for the $(SRCARCH) architecture)) | 940 | $(error Headers not exportable for the $(SRCARCH) architecture)) |
| 941 | $(Q)$(MAKE) $(hdr-inst)=include/uapi | 941 | $(Q)$(MAKE) $(hdr-inst)=include/uapi |
| 942 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) | 942 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) |
| 943 | 943 | ||
| 944 | PHONY += headers_check_all | 944 | PHONY += headers_check_all |
| 945 | headers_check_all: headers_install_all | 945 | headers_check_all: headers_install_all |
| 946 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check | 946 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check |
| 947 | 947 | ||
| 948 | PHONY += headers_check | 948 | PHONY += headers_check |
| 949 | headers_check: headers_install | 949 | headers_check: headers_install |
| 950 | $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1 | 950 | $(Q)$(MAKE) $(hdr-inst)=include/uapi HDRCHECK=1 |
| 951 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1 | 951 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/uapi/asm $(hdr-dst) HDRCHECK=1 |
| 952 | 952 | ||
| 953 | # --------------------------------------------------------------------------- | 953 | # --------------------------------------------------------------------------- |
| 954 | # Modules | 954 | # Modules |
| 955 | 955 | ||
| 956 | ifdef CONFIG_MODULES | 956 | ifdef CONFIG_MODULES |
| 957 | 957 | ||
| 958 | # By default, build modules as well | 958 | # By default, build modules as well |
| 959 | 959 | ||
| 960 | all: modules | 960 | all: modules |
| 961 | 961 | ||
| 962 | # Build modules | 962 | # Build modules |
| 963 | # | 963 | # |
| 964 | # A module can be listed more than once in obj-m resulting in | 964 | # A module can be listed more than once in obj-m resulting in |
| 965 | # duplicate lines in modules.order files. Those are removed | 965 | # duplicate lines in modules.order files. Those are removed |
| 966 | # using awk while concatenating to the final file. | 966 | # using awk while concatenating to the final file. |
| 967 | 967 | ||
| 968 | PHONY += modules | 968 | PHONY += modules |
| 969 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin | 969 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin |
| 970 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order | 970 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
| 971 | @$(kecho) ' Building modules, stage 2.'; | 971 | @$(kecho) ' Building modules, stage 2.'; |
| 972 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 972 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 973 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild | 973 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
| 974 | 974 | ||
| 975 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) | 975 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) |
| 976 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin | 976 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin |
| 977 | 977 | ||
| 978 | %/modules.builtin: include/config/auto.conf | 978 | %/modules.builtin: include/config/auto.conf |
| 979 | $(Q)$(MAKE) $(modbuiltin)=$* | 979 | $(Q)$(MAKE) $(modbuiltin)=$* |
| 980 | 980 | ||
| 981 | 981 | ||
| 982 | # Target to prepare building external modules | 982 | # Target to prepare building external modules |
| 983 | PHONY += modules_prepare | 983 | PHONY += modules_prepare |
| 984 | modules_prepare: prepare scripts | 984 | modules_prepare: prepare scripts |
| 985 | 985 | ||
| 986 | # Target to install modules | 986 | # Target to install modules |
| 987 | PHONY += modules_install | 987 | PHONY += modules_install |
| 988 | modules_install: _modinst_ _modinst_post | 988 | modules_install: _modinst_ _modinst_post |
| 989 | 989 | ||
| 990 | PHONY += _modinst_ | 990 | PHONY += _modinst_ |
| 991 | _modinst_: | 991 | _modinst_: |
| 992 | @rm -rf $(MODLIB)/kernel | 992 | @rm -rf $(MODLIB)/kernel |
| 993 | @rm -f $(MODLIB)/source | 993 | @rm -f $(MODLIB)/source |
| 994 | @mkdir -p $(MODLIB)/kernel | 994 | @mkdir -p $(MODLIB)/kernel |
| 995 | @ln -s $(srctree) $(MODLIB)/source | 995 | @ln -s $(srctree) $(MODLIB)/source |
| 996 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ | 996 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ |
| 997 | rm -f $(MODLIB)/build ; \ | 997 | rm -f $(MODLIB)/build ; \ |
| 998 | ln -s $(objtree) $(MODLIB)/build ; \ | 998 | ln -s $(objtree) $(MODLIB)/build ; \ |
| 999 | fi | 999 | fi |
| 1000 | @cp -f $(objtree)/modules.order $(MODLIB)/ | 1000 | @cp -f $(objtree)/modules.order $(MODLIB)/ |
| 1001 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ | 1001 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ |
| 1002 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1002 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
| 1003 | 1003 | ||
| 1004 | # This depmod is only for convenience to give the initial | 1004 | # This depmod is only for convenience to give the initial |
| 1005 | # boot a modules.dep even before / is mounted read-write. However the | 1005 | # boot a modules.dep even before / is mounted read-write. However the |
| 1006 | # boot script depmod is the master version. | 1006 | # boot script depmod is the master version. |
| 1007 | PHONY += _modinst_post | 1007 | PHONY += _modinst_post |
| 1008 | _modinst_post: _modinst_ | 1008 | _modinst_post: _modinst_ |
| 1009 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst | 1009 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
| 1010 | $(call cmd,depmod) | 1010 | $(call cmd,depmod) |
| 1011 | 1011 | ||
| 1012 | ifeq ($(CONFIG_MODULE_SIG), y) | 1012 | ifeq ($(CONFIG_MODULE_SIG), y) |
| 1013 | PHONY += modules_sign | 1013 | PHONY += modules_sign |
| 1014 | modules_sign: | 1014 | modules_sign: |
| 1015 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign | 1015 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modsign |
| 1016 | endif | 1016 | endif |
| 1017 | 1017 | ||
| 1018 | else # CONFIG_MODULES | 1018 | else # CONFIG_MODULES |
| 1019 | 1019 | ||
| 1020 | # Modules not configured | 1020 | # Modules not configured |
| 1021 | # --------------------------------------------------------------------------- | 1021 | # --------------------------------------------------------------------------- |
| 1022 | 1022 | ||
| 1023 | modules modules_install: FORCE | 1023 | modules modules_install: FORCE |
| 1024 | @echo >&2 | 1024 | @echo >&2 |
| 1025 | @echo >&2 "The present kernel configuration has modules disabled." | 1025 | @echo >&2 "The present kernel configuration has modules disabled." |
| 1026 | @echo >&2 "Type 'make config' and enable loadable module support." | 1026 | @echo >&2 "Type 'make config' and enable loadable module support." |
| 1027 | @echo >&2 "Then build a kernel with module support enabled." | 1027 | @echo >&2 "Then build a kernel with module support enabled." |
| 1028 | @echo >&2 | 1028 | @echo >&2 |
| 1029 | @exit 1 | 1029 | @exit 1 |
| 1030 | 1030 | ||
| 1031 | endif # CONFIG_MODULES | 1031 | endif # CONFIG_MODULES |
| 1032 | 1032 | ||
| 1033 | ### | 1033 | ### |
| 1034 | # Cleaning is done on three levels. | 1034 | # Cleaning is done on three levels. |
| 1035 | # make clean Delete most generated files | 1035 | # make clean Delete most generated files |
| 1036 | # Leave enough to build external modules | 1036 | # Leave enough to build external modules |
| 1037 | # make mrproper Delete the current configuration, and all generated files | 1037 | # make mrproper Delete the current configuration, and all generated files |
| 1038 | # make distclean Remove editor backup files, patch leftover files and the like | 1038 | # make distclean Remove editor backup files, patch leftover files and the like |
| 1039 | 1039 | ||
| 1040 | # Directories & files removed with 'make clean' | 1040 | # Directories & files removed with 'make clean' |
| 1041 | CLEAN_DIRS += $(MODVERDIR) | 1041 | CLEAN_DIRS += $(MODVERDIR) |
| 1042 | 1042 | ||
| 1043 | # Directories & files removed with 'make mrproper' | 1043 | # Directories & files removed with 'make mrproper' |
| 1044 | MRPROPER_DIRS += include/config usr/include include/generated \ | 1044 | MRPROPER_DIRS += include/config usr/include include/generated \ |
| 1045 | arch/*/include/generated | 1045 | arch/*/include/generated |
| 1046 | MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \ | 1046 | MRPROPER_FILES += .config .config.old .version .old_version $(version_h) \ |
| 1047 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ | 1047 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS \ |
| 1048 | signing_key.priv signing_key.x509 x509.genkey \ | 1048 | signing_key.priv signing_key.x509 x509.genkey \ |
| 1049 | extra_certificates signing_key.x509.keyid \ | 1049 | extra_certificates signing_key.x509.keyid \ |
| 1050 | signing_key.x509.signer | 1050 | signing_key.x509.signer |
| 1051 | 1051 | ||
| 1052 | # clean - Delete most, but leave enough to build external modules | 1052 | # clean - Delete most, but leave enough to build external modules |
| 1053 | # | 1053 | # |
| 1054 | clean: rm-dirs := $(CLEAN_DIRS) | 1054 | clean: rm-dirs := $(CLEAN_DIRS) |
| 1055 | clean: rm-files := $(CLEAN_FILES) | 1055 | clean: rm-files := $(CLEAN_FILES) |
| 1056 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples) | 1056 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation samples) |
| 1057 | 1057 | ||
| 1058 | PHONY += $(clean-dirs) clean archclean vmlinuxclean | 1058 | PHONY += $(clean-dirs) clean archclean vmlinuxclean |
| 1059 | $(clean-dirs): | 1059 | $(clean-dirs): |
| 1060 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1060 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
| 1061 | 1061 | ||
| 1062 | vmlinuxclean: | 1062 | vmlinuxclean: |
| 1063 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean | 1063 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/link-vmlinux.sh clean |
| 1064 | 1064 | ||
| 1065 | clean: archclean vmlinuxclean | 1065 | clean: archclean vmlinuxclean |
| 1066 | 1066 | ||
| 1067 | # mrproper - Delete all generated files, including .config | 1067 | # mrproper - Delete all generated files, including .config |
| 1068 | # | 1068 | # |
| 1069 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) | 1069 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) |
| 1070 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) | 1070 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) |
| 1071 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) | 1071 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) |
| 1072 | 1072 | ||
| 1073 | PHONY += $(mrproper-dirs) mrproper archmrproper | 1073 | PHONY += $(mrproper-dirs) mrproper archmrproper |
| 1074 | $(mrproper-dirs): | 1074 | $(mrproper-dirs): |
| 1075 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) | 1075 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) |
| 1076 | 1076 | ||
| 1077 | mrproper: clean archmrproper $(mrproper-dirs) | 1077 | mrproper: clean archmrproper $(mrproper-dirs) |
| 1078 | $(call cmd,rmdirs) | 1078 | $(call cmd,rmdirs) |
| 1079 | $(call cmd,rmfiles) | 1079 | $(call cmd,rmfiles) |
| 1080 | 1080 | ||
| 1081 | # distclean | 1081 | # distclean |
| 1082 | # | 1082 | # |
| 1083 | PHONY += distclean | 1083 | PHONY += distclean |
| 1084 | 1084 | ||
| 1085 | distclean: mrproper | 1085 | distclean: mrproper |
| 1086 | @find $(srctree) $(RCS_FIND_IGNORE) \ | 1086 | @find $(srctree) $(RCS_FIND_IGNORE) \ |
| 1087 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ | 1087 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
| 1088 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ | 1088 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
| 1089 | -o -name '.*.rej' \ | 1089 | -o -name '.*.rej' \ |
| 1090 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ | 1090 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ |
| 1091 | -type f -print | xargs rm -f | 1091 | -type f -print | xargs rm -f |
| 1092 | 1092 | ||
| 1093 | 1093 | ||
| 1094 | # Packaging of the kernel to various formats | 1094 | # Packaging of the kernel to various formats |
| 1095 | # --------------------------------------------------------------------------- | 1095 | # --------------------------------------------------------------------------- |
| 1096 | # rpm target kept for backward compatibility | 1096 | # rpm target kept for backward compatibility |
| 1097 | package-dir := $(srctree)/scripts/package | 1097 | package-dir := $(srctree)/scripts/package |
| 1098 | 1098 | ||
| 1099 | %src-pkg: FORCE | 1099 | %src-pkg: FORCE |
| 1100 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1100 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
| 1101 | %pkg: include/config/kernel.release FORCE | 1101 | %pkg: include/config/kernel.release FORCE |
| 1102 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1102 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
| 1103 | rpm: include/config/kernel.release FORCE | 1103 | rpm: include/config/kernel.release FORCE |
| 1104 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1104 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
| 1105 | 1105 | ||
| 1106 | 1106 | ||
| 1107 | # Brief documentation of the typical targets used | 1107 | # Brief documentation of the typical targets used |
| 1108 | # --------------------------------------------------------------------------- | 1108 | # --------------------------------------------------------------------------- |
| 1109 | 1109 | ||
| 1110 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) | 1110 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
| 1111 | boards := $(notdir $(boards)) | 1111 | boards := $(notdir $(boards)) |
| 1112 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) | 1112 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) |
| 1113 | board-dirs := $(sort $(notdir $(board-dirs:/=))) | 1113 | board-dirs := $(sort $(notdir $(board-dirs:/=))) |
| 1114 | 1114 | ||
| 1115 | help: | 1115 | help: |
| 1116 | @echo 'Cleaning targets:' | 1116 | @echo 'Cleaning targets:' |
| 1117 | @echo ' clean - Remove most generated files but keep the config and' | 1117 | @echo ' clean - Remove most generated files but keep the config and' |
| 1118 | @echo ' enough build support to build external modules' | 1118 | @echo ' enough build support to build external modules' |
| 1119 | @echo ' mrproper - Remove all generated files + config + various backup files' | 1119 | @echo ' mrproper - Remove all generated files + config + various backup files' |
| 1120 | @echo ' distclean - mrproper + remove editor backup and patch files' | 1120 | @echo ' distclean - mrproper + remove editor backup and patch files' |
| 1121 | @echo '' | 1121 | @echo '' |
| 1122 | @echo 'Configuration targets:' | 1122 | @echo 'Configuration targets:' |
| 1123 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help | 1123 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help |
| 1124 | @echo '' | 1124 | @echo '' |
| 1125 | @echo 'Other generic targets:' | 1125 | @echo 'Other generic targets:' |
| 1126 | @echo ' all - Build all targets marked with [*]' | 1126 | @echo ' all - Build all targets marked with [*]' |
| 1127 | @echo '* vmlinux - Build the bare kernel' | 1127 | @echo '* vmlinux - Build the bare kernel' |
| 1128 | @echo '* modules - Build all modules' | 1128 | @echo '* modules - Build all modules' |
| 1129 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' | 1129 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
| 1130 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' | 1130 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' |
| 1131 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' | 1131 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
| 1132 | @echo ' dir/ - Build all files in dir and below' | 1132 | @echo ' dir/ - Build all files in dir and below' |
| 1133 | @echo ' dir/file.[oisS] - Build specified target only' | 1133 | @echo ' dir/file.[oisS] - Build specified target only' |
| 1134 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' | 1134 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' |
| 1135 | @echo ' (requires a recent binutils and recent build (System.map))' | 1135 | @echo ' (requires a recent binutils and recent build (System.map))' |
| 1136 | @echo ' dir/file.ko - Build module including final link' | 1136 | @echo ' dir/file.ko - Build module including final link' |
| 1137 | @echo ' modules_prepare - Set up for building external modules' | 1137 | @echo ' modules_prepare - Set up for building external modules' |
| 1138 | @echo ' tags/TAGS - Generate tags file for editors' | 1138 | @echo ' tags/TAGS - Generate tags file for editors' |
| 1139 | @echo ' cscope - Generate cscope index' | 1139 | @echo ' cscope - Generate cscope index' |
| 1140 | @echo ' gtags - Generate GNU GLOBAL index' | 1140 | @echo ' gtags - Generate GNU GLOBAL index' |
| 1141 | @echo ' kernelrelease - Output the release version string' | 1141 | @echo ' kernelrelease - Output the release version string' |
| 1142 | @echo ' kernelversion - Output the version stored in Makefile' | 1142 | @echo ' kernelversion - Output the version stored in Makefile' |
| 1143 | @echo ' image_name - Output the image name' | 1143 | @echo ' image_name - Output the image name' |
| 1144 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ | 1144 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
| 1145 | echo ' (default: $(INSTALL_HDR_PATH))'; \ | 1145 | echo ' (default: $(INSTALL_HDR_PATH))'; \ |
| 1146 | echo '' | 1146 | echo '' |
| 1147 | @echo 'Static analysers' | 1147 | @echo 'Static analysers' |
| 1148 | @echo ' checkstack - Generate a list of stack hogs' | 1148 | @echo ' checkstack - Generate a list of stack hogs' |
| 1149 | @echo ' namespacecheck - Name space analysis on compiled kernel' | 1149 | @echo ' namespacecheck - Name space analysis on compiled kernel' |
| 1150 | @echo ' versioncheck - Sanity check on version.h usage' | 1150 | @echo ' versioncheck - Sanity check on version.h usage' |
| 1151 | @echo ' includecheck - Check for duplicate included header files' | 1151 | @echo ' includecheck - Check for duplicate included header files' |
| 1152 | @echo ' export_report - List the usages of all exported symbols' | 1152 | @echo ' export_report - List the usages of all exported symbols' |
| 1153 | @echo ' headers_check - Sanity check on exported headers' | 1153 | @echo ' headers_check - Sanity check on exported headers' |
| 1154 | @echo ' headerdep - Detect inclusion cycles in headers' | 1154 | @echo ' headerdep - Detect inclusion cycles in headers' |
| 1155 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help | 1155 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help |
| 1156 | @echo '' | 1156 | @echo '' |
| 1157 | @echo 'Kernel packaging:' | 1157 | @echo 'Kernel packaging:' |
| 1158 | @$(MAKE) $(build)=$(package-dir) help | 1158 | @$(MAKE) $(build)=$(package-dir) help |
| 1159 | @echo '' | 1159 | @echo '' |
| 1160 | @echo 'Documentation targets:' | 1160 | @echo 'Documentation targets:' |
| 1161 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp | 1161 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp |
| 1162 | @echo '' | 1162 | @echo '' |
| 1163 | @echo 'Architecture specific targets ($(SRCARCH)):' | 1163 | @echo 'Architecture specific targets ($(SRCARCH)):' |
| 1164 | @$(if $(archhelp),$(archhelp),\ | 1164 | @$(if $(archhelp),$(archhelp),\ |
| 1165 | echo ' No architecture specific help defined for $(SRCARCH)') | 1165 | echo ' No architecture specific help defined for $(SRCARCH)') |
| 1166 | @echo '' | 1166 | @echo '' |
| 1167 | @$(if $(boards), \ | 1167 | @$(if $(boards), \ |
| 1168 | $(foreach b, $(boards), \ | 1168 | $(foreach b, $(boards), \ |
| 1169 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ | 1169 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ |
| 1170 | echo '') | 1170 | echo '') |
| 1171 | @$(if $(board-dirs), \ | 1171 | @$(if $(board-dirs), \ |
| 1172 | $(foreach b, $(board-dirs), \ | 1172 | $(foreach b, $(board-dirs), \ |
| 1173 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ | 1173 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ |
| 1174 | printf " %-16s - Show all of the above\\n" help-boards; \ | 1174 | printf " %-16s - Show all of the above\\n" help-boards; \ |
| 1175 | echo '') | 1175 | echo '') |
| 1176 | 1176 | ||
| 1177 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' | 1177 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
| 1178 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' | 1178 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
| 1179 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' | 1179 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
| 1180 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' | 1180 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' |
| 1181 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' | 1181 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
| 1182 | @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' | 1182 | @echo ' make RECORDMCOUNT_WARN=1 [targets] Warn about ignored mcount sections' |
| 1183 | @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' | 1183 | @echo ' make W=n [targets] Enable extra gcc checks, n=1,2,3 where' |
| 1184 | @echo ' 1: warnings which may be relevant and do not occur too often' | 1184 | @echo ' 1: warnings which may be relevant and do not occur too often' |
| 1185 | @echo ' 2: warnings which occur quite often but may still be relevant' | 1185 | @echo ' 2: warnings which occur quite often but may still be relevant' |
| 1186 | @echo ' 3: more obscure warnings, can most likely be ignored' | 1186 | @echo ' 3: more obscure warnings, can most likely be ignored' |
| 1187 | @echo ' Multiple levels can be combined with W=12 or W=123' | 1187 | @echo ' Multiple levels can be combined with W=12 or W=123' |
| 1188 | @echo '' | 1188 | @echo '' |
| 1189 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' | 1189 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' |
| 1190 | @echo 'For further info see the ./README file' | 1190 | @echo 'For further info see the ./README file' |
| 1191 | 1191 | ||
| 1192 | 1192 | ||
| 1193 | help-board-dirs := $(addprefix help-,$(board-dirs)) | 1193 | help-board-dirs := $(addprefix help-,$(board-dirs)) |
| 1194 | 1194 | ||
| 1195 | help-boards: $(help-board-dirs) | 1195 | help-boards: $(help-board-dirs) |
| 1196 | 1196 | ||
| 1197 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) | 1197 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) |
| 1198 | 1198 | ||
| 1199 | $(help-board-dirs): help-%: | 1199 | $(help-board-dirs): help-%: |
| 1200 | @echo 'Architecture specific targets ($(SRCARCH) $*):' | 1200 | @echo 'Architecture specific targets ($(SRCARCH) $*):' |
| 1201 | @$(if $(boards-per-dir), \ | 1201 | @$(if $(boards-per-dir), \ |
| 1202 | $(foreach b, $(boards-per-dir), \ | 1202 | $(foreach b, $(boards-per-dir), \ |
| 1203 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ | 1203 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ |
| 1204 | echo '') | 1204 | echo '') |
| 1205 | 1205 | ||
| 1206 | 1206 | ||
| 1207 | # Documentation targets | 1207 | # Documentation targets |
| 1208 | # --------------------------------------------------------------------------- | 1208 | # --------------------------------------------------------------------------- |
| 1209 | %docs: scripts_basic FORCE | 1209 | %docs: scripts_basic FORCE |
| 1210 | $(Q)$(MAKE) $(build)=scripts build_docproc | 1210 | $(Q)$(MAKE) $(build)=scripts build_docproc |
| 1211 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ | 1211 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ |
| 1212 | 1212 | ||
| 1213 | else # KBUILD_EXTMOD | 1213 | else # KBUILD_EXTMOD |
| 1214 | 1214 | ||
| 1215 | ### | 1215 | ### |
| 1216 | # External module support. | 1216 | # External module support. |
| 1217 | # When building external modules the kernel used as basis is considered | 1217 | # When building external modules the kernel used as basis is considered |
| 1218 | # read-only, and no consistency checks are made and the make | 1218 | # read-only, and no consistency checks are made and the make |
| 1219 | # system is not used on the basis kernel. If updates are required | 1219 | # system is not used on the basis kernel. If updates are required |
| 1220 | # in the basis kernel ordinary make commands (without M=...) must | 1220 | # in the basis kernel ordinary make commands (without M=...) must |
| 1221 | # be used. | 1221 | # be used. |
| 1222 | # | 1222 | # |
| 1223 | # The following are the only valid targets when building external | 1223 | # The following are the only valid targets when building external |
| 1224 | # modules. | 1224 | # modules. |
| 1225 | # make M=dir clean Delete all automatically generated files | 1225 | # make M=dir clean Delete all automatically generated files |
| 1226 | # make M=dir modules Make all modules in specified dir | 1226 | # make M=dir modules Make all modules in specified dir |
| 1227 | # make M=dir Same as 'make M=dir modules' | 1227 | # make M=dir Same as 'make M=dir modules' |
| 1228 | # make M=dir modules_install | 1228 | # make M=dir modules_install |
| 1229 | # Install the modules built in the module directory | 1229 | # Install the modules built in the module directory |
| 1230 | # Assumes install directory is already created | 1230 | # Assumes install directory is already created |
| 1231 | 1231 | ||
| 1232 | # We are always building modules | 1232 | # We are always building modules |
| 1233 | KBUILD_MODULES := 1 | 1233 | KBUILD_MODULES := 1 |
| 1234 | PHONY += crmodverdir | 1234 | PHONY += crmodverdir |
| 1235 | crmodverdir: | 1235 | crmodverdir: |
| 1236 | $(cmd_crmodverdir) | 1236 | $(cmd_crmodverdir) |
| 1237 | 1237 | ||
| 1238 | PHONY += $(objtree)/Module.symvers | 1238 | PHONY += $(objtree)/Module.symvers |
| 1239 | $(objtree)/Module.symvers: | 1239 | $(objtree)/Module.symvers: |
| 1240 | @test -e $(objtree)/Module.symvers || ( \ | 1240 | @test -e $(objtree)/Module.symvers || ( \ |
| 1241 | echo; \ | 1241 | echo; \ |
| 1242 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ | 1242 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ |
| 1243 | echo " is missing; modules will have no dependencies and modversions."; \ | 1243 | echo " is missing; modules will have no dependencies and modversions."; \ |
| 1244 | echo ) | 1244 | echo ) |
| 1245 | 1245 | ||
| 1246 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) | 1246 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) |
| 1247 | PHONY += $(module-dirs) modules | 1247 | PHONY += $(module-dirs) modules |
| 1248 | $(module-dirs): crmodverdir $(objtree)/Module.symvers | 1248 | $(module-dirs): crmodverdir $(objtree)/Module.symvers |
| 1249 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) | 1249 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) |
| 1250 | 1250 | ||
| 1251 | modules: $(module-dirs) | 1251 | modules: $(module-dirs) |
| 1252 | @$(kecho) ' Building modules, stage 2.'; | 1252 | @$(kecho) ' Building modules, stage 2.'; |
| 1253 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1253 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1254 | 1254 | ||
| 1255 | PHONY += modules_install | 1255 | PHONY += modules_install |
| 1256 | modules_install: _emodinst_ _emodinst_post | 1256 | modules_install: _emodinst_ _emodinst_post |
| 1257 | 1257 | ||
| 1258 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) | 1258 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) |
| 1259 | PHONY += _emodinst_ | 1259 | PHONY += _emodinst_ |
| 1260 | _emodinst_: | 1260 | _emodinst_: |
| 1261 | $(Q)mkdir -p $(MODLIB)/$(install-dir) | 1261 | $(Q)mkdir -p $(MODLIB)/$(install-dir) |
| 1262 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1262 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
| 1263 | 1263 | ||
| 1264 | PHONY += _emodinst_post | 1264 | PHONY += _emodinst_post |
| 1265 | _emodinst_post: _emodinst_ | 1265 | _emodinst_post: _emodinst_ |
| 1266 | $(call cmd,depmod) | 1266 | $(call cmd,depmod) |
| 1267 | 1267 | ||
| 1268 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) | 1268 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
| 1269 | 1269 | ||
| 1270 | PHONY += $(clean-dirs) clean | 1270 | PHONY += $(clean-dirs) clean |
| 1271 | $(clean-dirs): | 1271 | $(clean-dirs): |
| 1272 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1272 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
| 1273 | 1273 | ||
| 1274 | clean: rm-dirs := $(MODVERDIR) | 1274 | clean: rm-dirs := $(MODVERDIR) |
| 1275 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers | 1275 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers |
| 1276 | 1276 | ||
| 1277 | help: | 1277 | help: |
| 1278 | @echo ' Building external modules.' | 1278 | @echo ' Building external modules.' |
| 1279 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' | 1279 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' |
| 1280 | @echo '' | 1280 | @echo '' |
| 1281 | @echo ' modules - default target, build the module(s)' | 1281 | @echo ' modules - default target, build the module(s)' |
| 1282 | @echo ' modules_install - install the module' | 1282 | @echo ' modules_install - install the module' |
| 1283 | @echo ' clean - remove generated files in module directory only' | 1283 | @echo ' clean - remove generated files in module directory only' |
| 1284 | @echo '' | 1284 | @echo '' |
| 1285 | 1285 | ||
| 1286 | # Dummies... | 1286 | # Dummies... |
| 1287 | PHONY += prepare scripts | 1287 | PHONY += prepare scripts |
| 1288 | prepare: ; | 1288 | prepare: ; |
| 1289 | scripts: ; | 1289 | scripts: ; |
| 1290 | endif # KBUILD_EXTMOD | 1290 | endif # KBUILD_EXTMOD |
| 1291 | 1291 | ||
| 1292 | clean: $(clean-dirs) | 1292 | clean: $(clean-dirs) |
| 1293 | $(call cmd,rmdirs) | 1293 | $(call cmd,rmdirs) |
| 1294 | $(call cmd,rmfiles) | 1294 | $(call cmd,rmfiles) |
| 1295 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ | 1295 | @find $(if $(KBUILD_EXTMOD), $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ |
| 1296 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1296 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
| 1297 | -o -name '*.ko.*' \ | 1297 | -o -name '*.ko.*' \ |
| 1298 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ | 1298 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
| 1299 | -o -name '*.symtypes' -o -name 'modules.order' \ | 1299 | -o -name '*.symtypes' -o -name 'modules.order' \ |
| 1300 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ | 1300 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ |
| 1301 | -o -name '*.gcno' \) -type f -print | xargs rm -f | 1301 | -o -name '*.gcno' \) -type f -print | xargs rm -f |
| 1302 | 1302 | ||
| 1303 | # Generate tags for editors | 1303 | # Generate tags for editors |
| 1304 | # --------------------------------------------------------------------------- | 1304 | # --------------------------------------------------------------------------- |
| 1305 | quiet_cmd_tags = GEN $@ | 1305 | quiet_cmd_tags = GEN $@ |
| 1306 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ | 1306 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ |
| 1307 | 1307 | ||
| 1308 | tags TAGS cscope gtags: FORCE | 1308 | tags TAGS cscope gtags: FORCE |
| 1309 | $(call cmd,tags) | 1309 | $(call cmd,tags) |
| 1310 | 1310 | ||
| 1311 | # Scripts to check various things for consistency | 1311 | # Scripts to check various things for consistency |
| 1312 | # --------------------------------------------------------------------------- | 1312 | # --------------------------------------------------------------------------- |
| 1313 | 1313 | ||
| 1314 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report | 1314 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report |
| 1315 | 1315 | ||
| 1316 | includecheck: | 1316 | includecheck: |
| 1317 | find $(srctree)/* $(RCS_FIND_IGNORE) \ | 1317 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
| 1318 | -name '*.[hcS]' -type f -print | sort \ | 1318 | -name '*.[hcS]' -type f -print | sort \ |
| 1319 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl | 1319 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
| 1320 | 1320 | ||
| 1321 | versioncheck: | 1321 | versioncheck: |
| 1322 | find $(srctree)/* $(RCS_FIND_IGNORE) \ | 1322 | find $(srctree)/* $(RCS_FIND_IGNORE) \ |
| 1323 | -name '*.[hcS]' -type f -print | sort \ | 1323 | -name '*.[hcS]' -type f -print | sort \ |
| 1324 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl | 1324 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
| 1325 | 1325 | ||
| 1326 | coccicheck: | 1326 | coccicheck: |
| 1327 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ | 1327 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ |
| 1328 | 1328 | ||
| 1329 | namespacecheck: | 1329 | namespacecheck: |
| 1330 | $(PERL) $(srctree)/scripts/namespace.pl | 1330 | $(PERL) $(srctree)/scripts/namespace.pl |
| 1331 | 1331 | ||
| 1332 | export_report: | 1332 | export_report: |
| 1333 | $(PERL) $(srctree)/scripts/export_report.pl | 1333 | $(PERL) $(srctree)/scripts/export_report.pl |
| 1334 | 1334 | ||
| 1335 | endif #ifeq ($(config-targets),1) | 1335 | endif #ifeq ($(config-targets),1) |
| 1336 | endif #ifeq ($(mixed-targets),1) | 1336 | endif #ifeq ($(mixed-targets),1) |
| 1337 | 1337 | ||
| 1338 | PHONY += checkstack kernelrelease kernelversion image_name | 1338 | PHONY += checkstack kernelrelease kernelversion image_name |
| 1339 | 1339 | ||
| 1340 | # UML needs a little special treatment here. It wants to use the host | 1340 | # UML needs a little special treatment here. It wants to use the host |
| 1341 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone | 1341 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone |
| 1342 | # else wants $(ARCH), including people doing cross-builds, which means | 1342 | # else wants $(ARCH), including people doing cross-builds, which means |
| 1343 | # that $(SUBARCH) doesn't work here. | 1343 | # that $(SUBARCH) doesn't work here. |
| 1344 | ifeq ($(ARCH), um) | 1344 | ifeq ($(ARCH), um) |
| 1345 | CHECKSTACK_ARCH := $(SUBARCH) | 1345 | CHECKSTACK_ARCH := $(SUBARCH) |
| 1346 | else | 1346 | else |
| 1347 | CHECKSTACK_ARCH := $(ARCH) | 1347 | CHECKSTACK_ARCH := $(ARCH) |
| 1348 | endif | 1348 | endif |
| 1349 | checkstack: | 1349 | checkstack: |
| 1350 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ | 1350 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
| 1351 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) | 1351 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
| 1352 | 1352 | ||
| 1353 | kernelrelease: | 1353 | kernelrelease: |
| 1354 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" | 1354 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
| 1355 | 1355 | ||
| 1356 | kernelversion: | 1356 | kernelversion: |
| 1357 | @echo $(KERNELVERSION) | 1357 | @echo $(KERNELVERSION) |
| 1358 | 1358 | ||
| 1359 | image_name: | 1359 | image_name: |
| 1360 | @echo $(KBUILD_IMAGE) | 1360 | @echo $(KBUILD_IMAGE) |
| 1361 | 1361 | ||
| 1362 | # Clear a bunch of variables before executing the submake | 1362 | # Clear a bunch of variables before executing the submake |
| 1363 | tools/: FORCE | 1363 | tools/: FORCE |
| 1364 | $(Q)mkdir -p $(objtree)/tools | 1364 | $(Q)mkdir -p $(objtree)/tools |
| 1365 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ | 1365 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ |
| 1366 | 1366 | ||
| 1367 | tools/%: FORCE | 1367 | tools/%: FORCE |
| 1368 | $(Q)mkdir -p $(objtree)/tools | 1368 | $(Q)mkdir -p $(objtree)/tools |
| 1369 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $* | 1369 | $(Q)$(MAKE) LDFLAGS= MAKEFLAGS="$(filter --j% -j,$(MAKEFLAGS))" O=$(objtree) subdir=tools -C $(src)/tools/ $* |
| 1370 | 1370 | ||
| 1371 | # Single targets | 1371 | # Single targets |
| 1372 | # --------------------------------------------------------------------------- | 1372 | # --------------------------------------------------------------------------- |
| 1373 | # Single targets are compatible with: | 1373 | # Single targets are compatible with: |
| 1374 | # - build with mixed source and output | 1374 | # - build with mixed source and output |
| 1375 | # - build with separate output dir 'make O=...' | 1375 | # - build with separate output dir 'make O=...' |
| 1376 | # - external modules | 1376 | # - external modules |
| 1377 | # | 1377 | # |
| 1378 | # target-dir => where to store outputfile | 1378 | # target-dir => where to store outputfile |
| 1379 | # build-dir => directory in kernel source tree to use | 1379 | # build-dir => directory in kernel source tree to use |
| 1380 | 1380 | ||
| 1381 | ifeq ($(KBUILD_EXTMOD),) | 1381 | ifeq ($(KBUILD_EXTMOD),) |
| 1382 | build-dir = $(patsubst %/,%,$(dir $@)) | 1382 | build-dir = $(patsubst %/,%,$(dir $@)) |
| 1383 | target-dir = $(dir $@) | 1383 | target-dir = $(dir $@) |
| 1384 | else | 1384 | else |
| 1385 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) | 1385 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) |
| 1386 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) | 1386 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) |
| 1387 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) | 1387 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) |
| 1388 | endif | 1388 | endif |
| 1389 | 1389 | ||
| 1390 | %.s: %.c prepare scripts FORCE | 1390 | %.s: %.c prepare scripts FORCE |
| 1391 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1391 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1392 | %.i: %.c prepare scripts FORCE | 1392 | %.i: %.c prepare scripts FORCE |
| 1393 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1393 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1394 | %.o: %.c prepare scripts FORCE | 1394 | %.o: %.c prepare scripts FORCE |
| 1395 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1395 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1396 | %.lst: %.c prepare scripts FORCE | 1396 | %.lst: %.c prepare scripts FORCE |
| 1397 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1397 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1398 | %.s: %.S prepare scripts FORCE | 1398 | %.s: %.S prepare scripts FORCE |
| 1399 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1399 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1400 | %.o: %.S prepare scripts FORCE | 1400 | %.o: %.S prepare scripts FORCE |
| 1401 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1401 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1402 | %.symtypes: %.c prepare scripts FORCE | 1402 | %.symtypes: %.c prepare scripts FORCE |
| 1403 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1403 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1404 | 1404 | ||
| 1405 | # Modules | 1405 | # Modules |
| 1406 | /: prepare scripts FORCE | 1406 | /: prepare scripts FORCE |
| 1407 | $(cmd_crmodverdir) | 1407 | $(cmd_crmodverdir) |
| 1408 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1408 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1409 | $(build)=$(build-dir) | 1409 | $(build)=$(build-dir) |
| 1410 | %/: prepare scripts FORCE | 1410 | %/: prepare scripts FORCE |
| 1411 | $(cmd_crmodverdir) | 1411 | $(cmd_crmodverdir) |
| 1412 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1412 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1413 | $(build)=$(build-dir) | 1413 | $(build)=$(build-dir) |
| 1414 | %.ko: prepare scripts FORCE | 1414 | %.ko: prepare scripts FORCE |
| 1415 | $(cmd_crmodverdir) | 1415 | $(cmd_crmodverdir) |
| 1416 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1416 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1417 | $(build)=$(build-dir) $(@:.ko=.o) | 1417 | $(build)=$(build-dir) $(@:.ko=.o) |
| 1418 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1418 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1419 | 1419 | ||
| 1420 | # FIXME Should go into a make.lib or something | 1420 | # FIXME Should go into a make.lib or something |
| 1421 | # =========================================================================== | 1421 | # =========================================================================== |
| 1422 | 1422 | ||
| 1423 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) | 1423 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) |
| 1424 | cmd_rmdirs = rm -rf $(rm-dirs) | 1424 | cmd_rmdirs = rm -rf $(rm-dirs) |
| 1425 | 1425 | ||
| 1426 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) | 1426 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) |
| 1427 | cmd_rmfiles = rm -f $(rm-files) | 1427 | cmd_rmfiles = rm -f $(rm-files) |
| 1428 | 1428 | ||
| 1429 | # Run depmod only if we have System.map and depmod is executable | 1429 | # Run depmod only if we have System.map and depmod is executable |
| 1430 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) | 1430 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) |
| 1431 | cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ | 1431 | cmd_depmod = $(CONFIG_SHELL) $(srctree)/scripts/depmod.sh $(DEPMOD) \ |
| 1432 | $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))" | 1432 | $(KERNELRELEASE) "$(patsubst y,_,$(CONFIG_HAVE_UNDERSCORE_SYMBOL_PREFIX))" |
| 1433 | 1433 | ||
| 1434 | # Create temporary dir for module support files | 1434 | # Create temporary dir for module support files |
| 1435 | # clean it up only when building all modules | 1435 | # clean it up only when building all modules |
| 1436 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ | 1436 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ |
| 1437 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) | 1437 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
| 1438 | 1438 | ||
| 1439 | # read all saved command lines | 1439 | # read all saved command lines |
| 1440 | 1440 | ||
| 1441 | targets := $(wildcard $(sort $(targets))) | 1441 | targets := $(wildcard $(sort $(targets))) |
| 1442 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | 1442 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) |
| 1443 | 1443 | ||
| 1444 | ifneq ($(cmd_files),) | 1444 | ifneq ($(cmd_files),) |
| 1445 | $(cmd_files): ; # Do not try to update included dependency files | 1445 | $(cmd_files): ; # Do not try to update included dependency files |
| 1446 | include $(cmd_files) | 1446 | include $(cmd_files) |
| 1447 | endif | 1447 | endif |
| 1448 | 1448 | ||
| 1449 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir | 1449 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir |
| 1450 | # Usage: | 1450 | # Usage: |
| 1451 | # $(Q)$(MAKE) $(clean)=dir | 1451 | # $(Q)$(MAKE) $(clean)=dir |
| 1452 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj | 1452 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj |
| 1453 | 1453 | ||
| 1454 | endif # skip-makefile | 1454 | endif # skip-makefile |
| 1455 | 1455 | ||
| 1456 | PHONY += FORCE | 1456 | PHONY += FORCE |
| 1457 | FORCE: | 1457 | FORCE: |
| 1458 | 1458 | ||
| 1459 | # Declare the contents of the .PHONY variable as phony. We keep that | 1459 | # Declare the contents of the .PHONY variable as phony. We keep that |
| 1460 | # information in a variable so we can use it in if_changed and friends. | 1460 | # information in a variable so we can use it in if_changed and friends. |
| 1461 | .PHONY: $(PHONY) | 1461 | .PHONY: $(PHONY) |
| 1462 | 1462 |