Commit 041b62374c7fedc11a8a1eeda2868612d3d1436c
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aa8e4fc68d
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Linus 2.6.29-rc8
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Makefile
| 1 | VERSION = 2 | 1 | VERSION = 2 |
| 2 | PATCHLEVEL = 6 | 2 | PATCHLEVEL = 6 |
| 3 | SUBLEVEL = 29 | 3 | SUBLEVEL = 29 |
| 4 | EXTRAVERSION = -rc7 | 4 | EXTRAVERSION = -rc8 |
| 5 | NAME = Erotic Pickled Herring | 5 | NAME = Erotic Pickled Herring |
| 6 | 6 | ||
| 7 | # *DOCUMENTATION* | 7 | # *DOCUMENTATION* |
| 8 | # To see a list of typical targets execute "make help" | 8 | # To see a list of typical targets execute "make help" |
| 9 | # More info can be located in ./README | 9 | # More info can be located in ./README |
| 10 | # Comments in this file are targeted only to the developer, do not | 10 | # Comments in this file are targeted only to the developer, do not |
| 11 | # expect to learn how to build the kernel reading this file. | 11 | # expect to learn how to build the kernel reading this file. |
| 12 | 12 | ||
| 13 | # Do not: | 13 | # Do not: |
| 14 | # o use make's built-in rules and variables | 14 | # o use make's built-in rules and variables |
| 15 | # (this increases performance and avoids hard-to-debug behaviour); | 15 | # (this increases performance and avoids hard-to-debug behaviour); |
| 16 | # o print "Entering directory ..."; | 16 | # o print "Entering directory ..."; |
| 17 | MAKEFLAGS += -rR --no-print-directory | 17 | MAKEFLAGS += -rR --no-print-directory |
| 18 | 18 | ||
| 19 | # We are using a recursive build, so we need to do a little thinking | 19 | # We are using a recursive build, so we need to do a little thinking |
| 20 | # to get the ordering right. | 20 | # to get the ordering right. |
| 21 | # | 21 | # |
| 22 | # Most importantly: sub-Makefiles should only ever modify files in | 22 | # Most importantly: sub-Makefiles should only ever modify files in |
| 23 | # their own directory. If in some directory we have a dependency on | 23 | # their own directory. If in some directory we have a dependency on |
| 24 | # a file in another dir (which doesn't happen often, but it's often | 24 | # a file in another dir (which doesn't happen often, but it's often |
| 25 | # unavoidable when linking the built-in.o targets which finally | 25 | # unavoidable when linking the built-in.o targets which finally |
| 26 | # turn into vmlinux), we will call a sub make in that other dir, and | 26 | # turn into vmlinux), we will call a sub make in that other dir, and |
| 27 | # after that we are sure that everything which is in that other dir | 27 | # after that we are sure that everything which is in that other dir |
| 28 | # is now up to date. | 28 | # is now up to date. |
| 29 | # | 29 | # |
| 30 | # The only cases where we need to modify files which have global | 30 | # The only cases where we need to modify files which have global |
| 31 | # effects are thus separated out and done before the recursive | 31 | # effects are thus separated out and done before the recursive |
| 32 | # descending is started. They are now explicitly listed as the | 32 | # descending is started. They are now explicitly listed as the |
| 33 | # prepare rule. | 33 | # prepare rule. |
| 34 | 34 | ||
| 35 | # To put more focus on warnings, be less verbose as default | 35 | # To put more focus on warnings, be less verbose as default |
| 36 | # Use 'make V=1' to see the full commands | 36 | # Use 'make V=1' to see the full commands |
| 37 | 37 | ||
| 38 | ifdef V | 38 | ifdef V |
| 39 | ifeq ("$(origin V)", "command line") | 39 | ifeq ("$(origin V)", "command line") |
| 40 | KBUILD_VERBOSE = $(V) | 40 | KBUILD_VERBOSE = $(V) |
| 41 | endif | 41 | endif |
| 42 | endif | 42 | endif |
| 43 | ifndef KBUILD_VERBOSE | 43 | ifndef KBUILD_VERBOSE |
| 44 | KBUILD_VERBOSE = 0 | 44 | KBUILD_VERBOSE = 0 |
| 45 | endif | 45 | endif |
| 46 | 46 | ||
| 47 | # Call a source code checker (by default, "sparse") as part of the | 47 | # Call a source code checker (by default, "sparse") as part of the |
| 48 | # C compilation. | 48 | # C compilation. |
| 49 | # | 49 | # |
| 50 | # Use 'make C=1' to enable checking of only re-compiled files. | 50 | # Use 'make C=1' to enable checking of only re-compiled files. |
| 51 | # Use 'make C=2' to enable checking of *all* source files, regardless | 51 | # Use 'make C=2' to enable checking of *all* source files, regardless |
| 52 | # of whether they are re-compiled or not. | 52 | # of whether they are re-compiled or not. |
| 53 | # | 53 | # |
| 54 | # See the file "Documentation/sparse.txt" for more details, including | 54 | # See the file "Documentation/sparse.txt" for more details, including |
| 55 | # where to get the "sparse" utility. | 55 | # where to get the "sparse" utility. |
| 56 | 56 | ||
| 57 | ifdef C | 57 | ifdef C |
| 58 | ifeq ("$(origin C)", "command line") | 58 | ifeq ("$(origin C)", "command line") |
| 59 | KBUILD_CHECKSRC = $(C) | 59 | KBUILD_CHECKSRC = $(C) |
| 60 | endif | 60 | endif |
| 61 | endif | 61 | endif |
| 62 | ifndef KBUILD_CHECKSRC | 62 | ifndef KBUILD_CHECKSRC |
| 63 | KBUILD_CHECKSRC = 0 | 63 | KBUILD_CHECKSRC = 0 |
| 64 | endif | 64 | endif |
| 65 | 65 | ||
| 66 | # Use make M=dir to specify directory of external module to build | 66 | # Use make M=dir to specify directory of external module to build |
| 67 | # Old syntax make ... SUBDIRS=$PWD is still supported | 67 | # Old syntax make ... SUBDIRS=$PWD is still supported |
| 68 | # Setting the environment variable KBUILD_EXTMOD take precedence | 68 | # Setting the environment variable KBUILD_EXTMOD take precedence |
| 69 | ifdef SUBDIRS | 69 | ifdef SUBDIRS |
| 70 | KBUILD_EXTMOD ?= $(SUBDIRS) | 70 | KBUILD_EXTMOD ?= $(SUBDIRS) |
| 71 | endif | 71 | endif |
| 72 | ifdef M | 72 | ifdef M |
| 73 | ifeq ("$(origin M)", "command line") | 73 | ifeq ("$(origin M)", "command line") |
| 74 | KBUILD_EXTMOD := $(M) | 74 | KBUILD_EXTMOD := $(M) |
| 75 | endif | 75 | endif |
| 76 | endif | 76 | endif |
| 77 | 77 | ||
| 78 | 78 | ||
| 79 | # kbuild supports saving output files in a separate directory. | 79 | # kbuild supports saving output files in a separate directory. |
| 80 | # To locate output files in a separate directory two syntaxes are supported. | 80 | # To locate output files in a separate directory two syntaxes are supported. |
| 81 | # In both cases the working directory must be the root of the kernel src. | 81 | # In both cases the working directory must be the root of the kernel src. |
| 82 | # 1) O= | 82 | # 1) O= |
| 83 | # Use "make O=dir/to/store/output/files/" | 83 | # Use "make O=dir/to/store/output/files/" |
| 84 | # | 84 | # |
| 85 | # 2) Set KBUILD_OUTPUT | 85 | # 2) Set KBUILD_OUTPUT |
| 86 | # Set the environment variable KBUILD_OUTPUT to point to the directory | 86 | # Set the environment variable KBUILD_OUTPUT to point to the directory |
| 87 | # where the output files shall be placed. | 87 | # where the output files shall be placed. |
| 88 | # export KBUILD_OUTPUT=dir/to/store/output/files/ | 88 | # export KBUILD_OUTPUT=dir/to/store/output/files/ |
| 89 | # make | 89 | # make |
| 90 | # | 90 | # |
| 91 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment | 91 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment |
| 92 | # variable. | 92 | # variable. |
| 93 | 93 | ||
| 94 | 94 | ||
| 95 | # KBUILD_SRC is set on invocation of make in OBJ directory | 95 | # KBUILD_SRC is set on invocation of make in OBJ directory |
| 96 | # KBUILD_SRC is not intended to be used by the regular user (for now) | 96 | # KBUILD_SRC is not intended to be used by the regular user (for now) |
| 97 | ifeq ($(KBUILD_SRC),) | 97 | ifeq ($(KBUILD_SRC),) |
| 98 | 98 | ||
| 99 | # OK, Make called in directory where kernel src resides | 99 | # OK, Make called in directory where kernel src resides |
| 100 | # Do we want to locate output files in a separate directory? | 100 | # Do we want to locate output files in a separate directory? |
| 101 | ifdef O | 101 | ifdef O |
| 102 | ifeq ("$(origin O)", "command line") | 102 | ifeq ("$(origin O)", "command line") |
| 103 | KBUILD_OUTPUT := $(O) | 103 | KBUILD_OUTPUT := $(O) |
| 104 | endif | 104 | endif |
| 105 | endif | 105 | endif |
| 106 | 106 | ||
| 107 | # That's our default target when none is given on the command line | 107 | # That's our default target when none is given on the command line |
| 108 | PHONY := _all | 108 | PHONY := _all |
| 109 | _all: | 109 | _all: |
| 110 | 110 | ||
| 111 | # Cancel implicit rules on top Makefile | 111 | # Cancel implicit rules on top Makefile |
| 112 | $(CURDIR)/Makefile Makefile: ; | 112 | $(CURDIR)/Makefile Makefile: ; |
| 113 | 113 | ||
| 114 | ifneq ($(KBUILD_OUTPUT),) | 114 | ifneq ($(KBUILD_OUTPUT),) |
| 115 | # Invoke a second make in the output directory, passing relevant variables | 115 | # Invoke a second make in the output directory, passing relevant variables |
| 116 | # check that the output directory actually exists | 116 | # check that the output directory actually exists |
| 117 | saved-output := $(KBUILD_OUTPUT) | 117 | saved-output := $(KBUILD_OUTPUT) |
| 118 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) | 118 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) |
| 119 | $(if $(KBUILD_OUTPUT),, \ | 119 | $(if $(KBUILD_OUTPUT),, \ |
| 120 | $(error output directory "$(saved-output)" does not exist)) | 120 | $(error output directory "$(saved-output)" does not exist)) |
| 121 | 121 | ||
| 122 | PHONY += $(MAKECMDGOALS) sub-make | 122 | PHONY += $(MAKECMDGOALS) sub-make |
| 123 | 123 | ||
| 124 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make | 124 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make |
| 125 | $(Q)@: | 125 | $(Q)@: |
| 126 | 126 | ||
| 127 | sub-make: FORCE | 127 | sub-make: FORCE |
| 128 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ | 128 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ |
| 129 | KBUILD_SRC=$(CURDIR) \ | 129 | KBUILD_SRC=$(CURDIR) \ |
| 130 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ | 130 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ |
| 131 | $(filter-out _all sub-make,$(MAKECMDGOALS)) | 131 | $(filter-out _all sub-make,$(MAKECMDGOALS)) |
| 132 | 132 | ||
| 133 | # Leave processing to above invocation of make | 133 | # Leave processing to above invocation of make |
| 134 | skip-makefile := 1 | 134 | skip-makefile := 1 |
| 135 | endif # ifneq ($(KBUILD_OUTPUT),) | 135 | endif # ifneq ($(KBUILD_OUTPUT),) |
| 136 | endif # ifeq ($(KBUILD_SRC),) | 136 | endif # ifeq ($(KBUILD_SRC),) |
| 137 | 137 | ||
| 138 | # We process the rest of the Makefile if this is the final invocation of make | 138 | # We process the rest of the Makefile if this is the final invocation of make |
| 139 | ifeq ($(skip-makefile),) | 139 | ifeq ($(skip-makefile),) |
| 140 | 140 | ||
| 141 | # If building an external module we do not care about the all: rule | 141 | # If building an external module we do not care about the all: rule |
| 142 | # but instead _all depend on modules | 142 | # but instead _all depend on modules |
| 143 | PHONY += all | 143 | PHONY += all |
| 144 | ifeq ($(KBUILD_EXTMOD),) | 144 | ifeq ($(KBUILD_EXTMOD),) |
| 145 | _all: all | 145 | _all: all |
| 146 | else | 146 | else |
| 147 | _all: modules | 147 | _all: modules |
| 148 | endif | 148 | endif |
| 149 | 149 | ||
| 150 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) | 150 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) |
| 151 | TOPDIR := $(srctree) | 151 | TOPDIR := $(srctree) |
| 152 | # FIXME - TOPDIR is obsolete, use srctree/objtree | 152 | # FIXME - TOPDIR is obsolete, use srctree/objtree |
| 153 | objtree := $(CURDIR) | 153 | objtree := $(CURDIR) |
| 154 | src := $(srctree) | 154 | src := $(srctree) |
| 155 | obj := $(objtree) | 155 | obj := $(objtree) |
| 156 | 156 | ||
| 157 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) | 157 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) |
| 158 | 158 | ||
| 159 | export srctree objtree VPATH TOPDIR | 159 | export srctree objtree VPATH TOPDIR |
| 160 | 160 | ||
| 161 | 161 | ||
| 162 | # SUBARCH tells the usermode build what the underlying arch is. That is set | 162 | # SUBARCH tells the usermode build what the underlying arch is. That is set |
| 163 | # first, and if a usermode build is happening, the "ARCH=um" on the command | 163 | # first, and if a usermode build is happening, the "ARCH=um" on the command |
| 164 | # line overrides the setting of ARCH below. If a native build is happening, | 164 | # line overrides the setting of ARCH below. If a native build is happening, |
| 165 | # then ARCH is assigned, getting whatever value it gets normally, and | 165 | # then ARCH is assigned, getting whatever value it gets normally, and |
| 166 | # SUBARCH is subsequently ignored. | 166 | # SUBARCH is subsequently ignored. |
| 167 | 167 | ||
| 168 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ | 168 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ |
| 169 | -e s/arm.*/arm/ -e s/sa110/arm/ \ | 169 | -e s/arm.*/arm/ -e s/sa110/arm/ \ |
| 170 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ | 170 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ |
| 171 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ | 171 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ |
| 172 | -e s/sh.*/sh/ ) | 172 | -e s/sh.*/sh/ ) |
| 173 | 173 | ||
| 174 | # Cross compiling and selecting different set of gcc/bin-utils | 174 | # Cross compiling and selecting different set of gcc/bin-utils |
| 175 | # --------------------------------------------------------------------------- | 175 | # --------------------------------------------------------------------------- |
| 176 | # | 176 | # |
| 177 | # When performing cross compilation for other architectures ARCH shall be set | 177 | # When performing cross compilation for other architectures ARCH shall be set |
| 178 | # to the target architecture. (See arch/* for the possibilities). | 178 | # to the target architecture. (See arch/* for the possibilities). |
| 179 | # ARCH can be set during invocation of make: | 179 | # ARCH can be set during invocation of make: |
| 180 | # make ARCH=ia64 | 180 | # make ARCH=ia64 |
| 181 | # Another way is to have ARCH set in the environment. | 181 | # Another way is to have ARCH set in the environment. |
| 182 | # The default ARCH is the host where make is executed. | 182 | # The default ARCH is the host where make is executed. |
| 183 | 183 | ||
| 184 | # CROSS_COMPILE specify the prefix used for all executables used | 184 | # CROSS_COMPILE specify the prefix used for all executables used |
| 185 | # during compilation. Only gcc and related bin-utils executables | 185 | # during compilation. Only gcc and related bin-utils executables |
| 186 | # are prefixed with $(CROSS_COMPILE). | 186 | # are prefixed with $(CROSS_COMPILE). |
| 187 | # CROSS_COMPILE can be set on the command line | 187 | # CROSS_COMPILE can be set on the command line |
| 188 | # make CROSS_COMPILE=ia64-linux- | 188 | # make CROSS_COMPILE=ia64-linux- |
| 189 | # Alternatively CROSS_COMPILE can be set in the environment. | 189 | # Alternatively CROSS_COMPILE can be set in the environment. |
| 190 | # Default value for CROSS_COMPILE is not to prefix executables | 190 | # Default value for CROSS_COMPILE is not to prefix executables |
| 191 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile | 191 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile |
| 192 | export KBUILD_BUILDHOST := $(SUBARCH) | 192 | export KBUILD_BUILDHOST := $(SUBARCH) |
| 193 | ARCH ?= $(SUBARCH) | 193 | ARCH ?= $(SUBARCH) |
| 194 | CROSS_COMPILE ?= | 194 | CROSS_COMPILE ?= |
| 195 | 195 | ||
| 196 | # Architecture as present in compile.h | 196 | # Architecture as present in compile.h |
| 197 | UTS_MACHINE := $(ARCH) | 197 | UTS_MACHINE := $(ARCH) |
| 198 | SRCARCH := $(ARCH) | 198 | SRCARCH := $(ARCH) |
| 199 | 199 | ||
| 200 | # Additional ARCH settings for x86 | 200 | # Additional ARCH settings for x86 |
| 201 | ifeq ($(ARCH),i386) | 201 | ifeq ($(ARCH),i386) |
| 202 | SRCARCH := x86 | 202 | SRCARCH := x86 |
| 203 | endif | 203 | endif |
| 204 | ifeq ($(ARCH),x86_64) | 204 | ifeq ($(ARCH),x86_64) |
| 205 | SRCARCH := x86 | 205 | SRCARCH := x86 |
| 206 | endif | 206 | endif |
| 207 | 207 | ||
| 208 | # Additional ARCH settings for sparc | 208 | # Additional ARCH settings for sparc |
| 209 | ifeq ($(ARCH),sparc64) | 209 | ifeq ($(ARCH),sparc64) |
| 210 | SRCARCH := sparc | 210 | SRCARCH := sparc |
| 211 | endif | 211 | endif |
| 212 | 212 | ||
| 213 | # Where to locate arch specific headers | 213 | # Where to locate arch specific headers |
| 214 | hdr-arch := $(SRCARCH) | 214 | hdr-arch := $(SRCARCH) |
| 215 | 215 | ||
| 216 | ifeq ($(ARCH),m68knommu) | 216 | ifeq ($(ARCH),m68knommu) |
| 217 | hdr-arch := m68k | 217 | hdr-arch := m68k |
| 218 | endif | 218 | endif |
| 219 | 219 | ||
| 220 | KCONFIG_CONFIG ?= .config | 220 | KCONFIG_CONFIG ?= .config |
| 221 | 221 | ||
| 222 | # SHELL used by kbuild | 222 | # SHELL used by kbuild |
| 223 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ | 223 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ |
| 224 | else if [ -x /bin/bash ]; then echo /bin/bash; \ | 224 | else if [ -x /bin/bash ]; then echo /bin/bash; \ |
| 225 | else echo sh; fi ; fi) | 225 | else echo sh; fi ; fi) |
| 226 | 226 | ||
| 227 | HOSTCC = gcc | 227 | HOSTCC = gcc |
| 228 | HOSTCXX = g++ | 228 | HOSTCXX = g++ |
| 229 | HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer | 229 | HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer |
| 230 | HOSTCXXFLAGS = -O2 | 230 | HOSTCXXFLAGS = -O2 |
| 231 | 231 | ||
| 232 | # Decide whether to build built-in, modular, or both. | 232 | # Decide whether to build built-in, modular, or both. |
| 233 | # Normally, just do built-in. | 233 | # Normally, just do built-in. |
| 234 | 234 | ||
| 235 | KBUILD_MODULES := | 235 | KBUILD_MODULES := |
| 236 | KBUILD_BUILTIN := 1 | 236 | KBUILD_BUILTIN := 1 |
| 237 | 237 | ||
| 238 | # If we have only "make modules", don't compile built-in objects. | 238 | # If we have only "make modules", don't compile built-in objects. |
| 239 | # When we're building modules with modversions, we need to consider | 239 | # When we're building modules with modversions, we need to consider |
| 240 | # the built-in objects during the descend as well, in order to | 240 | # the built-in objects during the descend as well, in order to |
| 241 | # make sure the checksums are up to date before we record them. | 241 | # make sure the checksums are up to date before we record them. |
| 242 | 242 | ||
| 243 | ifeq ($(MAKECMDGOALS),modules) | 243 | ifeq ($(MAKECMDGOALS),modules) |
| 244 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) | 244 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) |
| 245 | endif | 245 | endif |
| 246 | 246 | ||
| 247 | # If we have "make <whatever> modules", compile modules | 247 | # If we have "make <whatever> modules", compile modules |
| 248 | # in addition to whatever we do anyway. | 248 | # in addition to whatever we do anyway. |
| 249 | # Just "make" or "make all" shall build modules as well | 249 | # Just "make" or "make all" shall build modules as well |
| 250 | 250 | ||
| 251 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) | 251 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) |
| 252 | KBUILD_MODULES := 1 | 252 | KBUILD_MODULES := 1 |
| 253 | endif | 253 | endif |
| 254 | 254 | ||
| 255 | ifeq ($(MAKECMDGOALS),) | 255 | ifeq ($(MAKECMDGOALS),) |
| 256 | KBUILD_MODULES := 1 | 256 | KBUILD_MODULES := 1 |
| 257 | endif | 257 | endif |
| 258 | 258 | ||
| 259 | export KBUILD_MODULES KBUILD_BUILTIN | 259 | export KBUILD_MODULES KBUILD_BUILTIN |
| 260 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD | 260 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD |
| 261 | 261 | ||
| 262 | # Beautify output | 262 | # Beautify output |
| 263 | # --------------------------------------------------------------------------- | 263 | # --------------------------------------------------------------------------- |
| 264 | # | 264 | # |
| 265 | # Normally, we echo the whole command before executing it. By making | 265 | # Normally, we echo the whole command before executing it. By making |
| 266 | # that echo $($(quiet)$(cmd)), we now have the possibility to set | 266 | # that echo $($(quiet)$(cmd)), we now have the possibility to set |
| 267 | # $(quiet) to choose other forms of output instead, e.g. | 267 | # $(quiet) to choose other forms of output instead, e.g. |
| 268 | # | 268 | # |
| 269 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ | 269 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ |
| 270 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< | 270 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< |
| 271 | # | 271 | # |
| 272 | # If $(quiet) is empty, the whole command will be printed. | 272 | # If $(quiet) is empty, the whole command will be printed. |
| 273 | # If it is set to "quiet_", only the short version will be printed. | 273 | # If it is set to "quiet_", only the short version will be printed. |
| 274 | # If it is set to "silent_", nothing will be printed at all, since | 274 | # If it is set to "silent_", nothing will be printed at all, since |
| 275 | # the variable $(silent_cmd_cc_o_c) doesn't exist. | 275 | # the variable $(silent_cmd_cc_o_c) doesn't exist. |
| 276 | # | 276 | # |
| 277 | # A simple variant is to prefix commands with $(Q) - that's useful | 277 | # A simple variant is to prefix commands with $(Q) - that's useful |
| 278 | # for commands that shall be hidden in non-verbose mode. | 278 | # for commands that shall be hidden in non-verbose mode. |
| 279 | # | 279 | # |
| 280 | # $(Q)ln $@ :< | 280 | # $(Q)ln $@ :< |
| 281 | # | 281 | # |
| 282 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. | 282 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. |
| 283 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. | 283 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. |
| 284 | 284 | ||
| 285 | ifeq ($(KBUILD_VERBOSE),1) | 285 | ifeq ($(KBUILD_VERBOSE),1) |
| 286 | quiet = | 286 | quiet = |
| 287 | Q = | 287 | Q = |
| 288 | else | 288 | else |
| 289 | quiet=quiet_ | 289 | quiet=quiet_ |
| 290 | Q = @ | 290 | Q = @ |
| 291 | endif | 291 | endif |
| 292 | 292 | ||
| 293 | # If the user is running make -s (silent mode), suppress echoing of | 293 | # If the user is running make -s (silent mode), suppress echoing of |
| 294 | # commands | 294 | # commands |
| 295 | 295 | ||
| 296 | ifneq ($(findstring s,$(MAKEFLAGS)),) | 296 | ifneq ($(findstring s,$(MAKEFLAGS)),) |
| 297 | quiet=silent_ | 297 | quiet=silent_ |
| 298 | endif | 298 | endif |
| 299 | 299 | ||
| 300 | export quiet Q KBUILD_VERBOSE | 300 | export quiet Q KBUILD_VERBOSE |
| 301 | 301 | ||
| 302 | 302 | ||
| 303 | # Look for make include files relative to root of kernel src | 303 | # Look for make include files relative to root of kernel src |
| 304 | MAKEFLAGS += --include-dir=$(srctree) | 304 | MAKEFLAGS += --include-dir=$(srctree) |
| 305 | 305 | ||
| 306 | # We need some generic definitions (do not try to remake the file). | 306 | # We need some generic definitions (do not try to remake the file). |
| 307 | $(srctree)/scripts/Kbuild.include: ; | 307 | $(srctree)/scripts/Kbuild.include: ; |
| 308 | include $(srctree)/scripts/Kbuild.include | 308 | include $(srctree)/scripts/Kbuild.include |
| 309 | 309 | ||
| 310 | # Make variables (CC, etc...) | 310 | # Make variables (CC, etc...) |
| 311 | 311 | ||
| 312 | AS = $(CROSS_COMPILE)as | 312 | AS = $(CROSS_COMPILE)as |
| 313 | LD = $(CROSS_COMPILE)ld | 313 | LD = $(CROSS_COMPILE)ld |
| 314 | CC = $(CROSS_COMPILE)gcc | 314 | CC = $(CROSS_COMPILE)gcc |
| 315 | CPP = $(CC) -E | 315 | CPP = $(CC) -E |
| 316 | AR = $(CROSS_COMPILE)ar | 316 | AR = $(CROSS_COMPILE)ar |
| 317 | NM = $(CROSS_COMPILE)nm | 317 | NM = $(CROSS_COMPILE)nm |
| 318 | STRIP = $(CROSS_COMPILE)strip | 318 | STRIP = $(CROSS_COMPILE)strip |
| 319 | OBJCOPY = $(CROSS_COMPILE)objcopy | 319 | OBJCOPY = $(CROSS_COMPILE)objcopy |
| 320 | OBJDUMP = $(CROSS_COMPILE)objdump | 320 | OBJDUMP = $(CROSS_COMPILE)objdump |
| 321 | AWK = awk | 321 | AWK = awk |
| 322 | GENKSYMS = scripts/genksyms/genksyms | 322 | GENKSYMS = scripts/genksyms/genksyms |
| 323 | DEPMOD = /sbin/depmod | 323 | DEPMOD = /sbin/depmod |
| 324 | KALLSYMS = scripts/kallsyms | 324 | KALLSYMS = scripts/kallsyms |
| 325 | PERL = perl | 325 | PERL = perl |
| 326 | CHECK = sparse | 326 | CHECK = sparse |
| 327 | 327 | ||
| 328 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ | 328 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ |
| 329 | -Wbitwise -Wno-return-void $(CF) | 329 | -Wbitwise -Wno-return-void $(CF) |
| 330 | MODFLAGS = -DMODULE | 330 | MODFLAGS = -DMODULE |
| 331 | CFLAGS_MODULE = $(MODFLAGS) | 331 | CFLAGS_MODULE = $(MODFLAGS) |
| 332 | AFLAGS_MODULE = $(MODFLAGS) | 332 | AFLAGS_MODULE = $(MODFLAGS) |
| 333 | LDFLAGS_MODULE = | 333 | LDFLAGS_MODULE = |
| 334 | CFLAGS_KERNEL = | 334 | CFLAGS_KERNEL = |
| 335 | AFLAGS_KERNEL = | 335 | AFLAGS_KERNEL = |
| 336 | 336 | ||
| 337 | 337 | ||
| 338 | # Use LINUXINCLUDE when you must reference the include/ directory. | 338 | # Use LINUXINCLUDE when you must reference the include/ directory. |
| 339 | # Needed to be compatible with the O= option | 339 | # Needed to be compatible with the O= option |
| 340 | LINUXINCLUDE := -Iinclude \ | 340 | LINUXINCLUDE := -Iinclude \ |
| 341 | $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ | 341 | $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ |
| 342 | -I$(srctree)/arch/$(hdr-arch)/include \ | 342 | -I$(srctree)/arch/$(hdr-arch)/include \ |
| 343 | -include include/linux/autoconf.h | 343 | -include include/linux/autoconf.h |
| 344 | 344 | ||
| 345 | KBUILD_CPPFLAGS := -D__KERNEL__ | 345 | KBUILD_CPPFLAGS := -D__KERNEL__ |
| 346 | 346 | ||
| 347 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ | 347 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
| 348 | -fno-strict-aliasing -fno-common \ | 348 | -fno-strict-aliasing -fno-common \ |
| 349 | -Werror-implicit-function-declaration | 349 | -Werror-implicit-function-declaration |
| 350 | KBUILD_AFLAGS := -D__ASSEMBLY__ | 350 | KBUILD_AFLAGS := -D__ASSEMBLY__ |
| 351 | 351 | ||
| 352 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) | 352 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) |
| 353 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) | 353 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) |
| 354 | KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) | 354 | KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) |
| 355 | 355 | ||
| 356 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION | 356 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
| 357 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC | 357 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |
| 358 | export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE | 358 | export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE |
| 359 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS | 359 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS |
| 360 | 360 | ||
| 361 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS | 361 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
| 362 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE | 362 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE |
| 363 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE | 363 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
| 364 | 364 | ||
| 365 | # When compiling out-of-tree modules, put MODVERDIR in the module | 365 | # When compiling out-of-tree modules, put MODVERDIR in the module |
| 366 | # tree rather than in the kernel tree. The kernel tree might | 366 | # tree rather than in the kernel tree. The kernel tree might |
| 367 | # even be read-only. | 367 | # even be read-only. |
| 368 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions | 368 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions |
| 369 | 369 | ||
| 370 | # Files to ignore in find ... statements | 370 | # Files to ignore in find ... statements |
| 371 | 371 | ||
| 372 | RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o | 372 | RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o |
| 373 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git | 373 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git |
| 374 | 374 | ||
| 375 | # =========================================================================== | 375 | # =========================================================================== |
| 376 | # Rules shared between *config targets and build targets | 376 | # Rules shared between *config targets and build targets |
| 377 | 377 | ||
| 378 | # Basic helpers built in scripts/ | 378 | # Basic helpers built in scripts/ |
| 379 | PHONY += scripts_basic | 379 | PHONY += scripts_basic |
| 380 | scripts_basic: | 380 | scripts_basic: |
| 381 | $(Q)$(MAKE) $(build)=scripts/basic | 381 | $(Q)$(MAKE) $(build)=scripts/basic |
| 382 | 382 | ||
| 383 | # To avoid any implicit rule to kick in, define an empty command. | 383 | # To avoid any implicit rule to kick in, define an empty command. |
| 384 | scripts/basic/%: scripts_basic ; | 384 | scripts/basic/%: scripts_basic ; |
| 385 | 385 | ||
| 386 | PHONY += outputmakefile | 386 | PHONY += outputmakefile |
| 387 | # outputmakefile generates a Makefile in the output directory, if using a | 387 | # outputmakefile generates a Makefile in the output directory, if using a |
| 388 | # separate output directory. This allows convenient use of make in the | 388 | # separate output directory. This allows convenient use of make in the |
| 389 | # output directory. | 389 | # output directory. |
| 390 | outputmakefile: | 390 | outputmakefile: |
| 391 | ifneq ($(KBUILD_SRC),) | 391 | ifneq ($(KBUILD_SRC),) |
| 392 | $(Q)ln -fsn $(srctree) source | 392 | $(Q)ln -fsn $(srctree) source |
| 393 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ | 393 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ |
| 394 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) | 394 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) |
| 395 | endif | 395 | endif |
| 396 | 396 | ||
| 397 | # To make sure we do not include .config for any of the *config targets | 397 | # To make sure we do not include .config for any of the *config targets |
| 398 | # catch them early, and hand them over to scripts/kconfig/Makefile | 398 | # catch them early, and hand them over to scripts/kconfig/Makefile |
| 399 | # It is allowed to specify more targets when calling make, including | 399 | # It is allowed to specify more targets when calling make, including |
| 400 | # mixing *config targets and build targets. | 400 | # mixing *config targets and build targets. |
| 401 | # For example 'make oldconfig all'. | 401 | # For example 'make oldconfig all'. |
| 402 | # Detect when mixed targets is specified, and make a second invocation | 402 | # Detect when mixed targets is specified, and make a second invocation |
| 403 | # of make so .config is not included in this case either (for *config). | 403 | # of make so .config is not included in this case either (for *config). |
| 404 | 404 | ||
| 405 | no-dot-config-targets := clean mrproper distclean \ | 405 | no-dot-config-targets := clean mrproper distclean \ |
| 406 | cscope TAGS tags help %docs check% \ | 406 | cscope TAGS tags help %docs check% \ |
| 407 | include/linux/version.h headers_% \ | 407 | include/linux/version.h headers_% \ |
| 408 | kernelrelease kernelversion | 408 | kernelrelease kernelversion |
| 409 | 409 | ||
| 410 | config-targets := 0 | 410 | config-targets := 0 |
| 411 | mixed-targets := 0 | 411 | mixed-targets := 0 |
| 412 | dot-config := 1 | 412 | dot-config := 1 |
| 413 | 413 | ||
| 414 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) | 414 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) |
| 415 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) | 415 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) |
| 416 | dot-config := 0 | 416 | dot-config := 0 |
| 417 | endif | 417 | endif |
| 418 | endif | 418 | endif |
| 419 | 419 | ||
| 420 | ifeq ($(KBUILD_EXTMOD),) | 420 | ifeq ($(KBUILD_EXTMOD),) |
| 421 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) | 421 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) |
| 422 | config-targets := 1 | 422 | config-targets := 1 |
| 423 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) | 423 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) |
| 424 | mixed-targets := 1 | 424 | mixed-targets := 1 |
| 425 | endif | 425 | endif |
| 426 | endif | 426 | endif |
| 427 | endif | 427 | endif |
| 428 | 428 | ||
| 429 | ifeq ($(mixed-targets),1) | 429 | ifeq ($(mixed-targets),1) |
| 430 | # =========================================================================== | 430 | # =========================================================================== |
| 431 | # We're called with mixed targets (*config and build targets). | 431 | # We're called with mixed targets (*config and build targets). |
| 432 | # Handle them one by one. | 432 | # Handle them one by one. |
| 433 | 433 | ||
| 434 | %:: FORCE | 434 | %:: FORCE |
| 435 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ | 435 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ |
| 436 | 436 | ||
| 437 | else | 437 | else |
| 438 | ifeq ($(config-targets),1) | 438 | ifeq ($(config-targets),1) |
| 439 | # =========================================================================== | 439 | # =========================================================================== |
| 440 | # *config targets only - make sure prerequisites are updated, and descend | 440 | # *config targets only - make sure prerequisites are updated, and descend |
| 441 | # in scripts/kconfig to make the *config target | 441 | # in scripts/kconfig to make the *config target |
| 442 | 442 | ||
| 443 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. | 443 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. |
| 444 | # KBUILD_DEFCONFIG may point out an alternative default configuration | 444 | # KBUILD_DEFCONFIG may point out an alternative default configuration |
| 445 | # used for 'make defconfig' | 445 | # used for 'make defconfig' |
| 446 | include $(srctree)/arch/$(SRCARCH)/Makefile | 446 | include $(srctree)/arch/$(SRCARCH)/Makefile |
| 447 | export KBUILD_DEFCONFIG KBUILD_KCONFIG | 447 | export KBUILD_DEFCONFIG KBUILD_KCONFIG |
| 448 | 448 | ||
| 449 | config: scripts_basic outputmakefile FORCE | 449 | config: scripts_basic outputmakefile FORCE |
| 450 | $(Q)mkdir -p include/linux include/config | 450 | $(Q)mkdir -p include/linux include/config |
| 451 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 451 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
| 452 | 452 | ||
| 453 | %config: scripts_basic outputmakefile FORCE | 453 | %config: scripts_basic outputmakefile FORCE |
| 454 | $(Q)mkdir -p include/linux include/config | 454 | $(Q)mkdir -p include/linux include/config |
| 455 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 455 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
| 456 | 456 | ||
| 457 | else | 457 | else |
| 458 | # =========================================================================== | 458 | # =========================================================================== |
| 459 | # Build targets only - this includes vmlinux, arch specific targets, clean | 459 | # Build targets only - this includes vmlinux, arch specific targets, clean |
| 460 | # targets and others. In general all targets except *config targets. | 460 | # targets and others. In general all targets except *config targets. |
| 461 | 461 | ||
| 462 | ifeq ($(KBUILD_EXTMOD),) | 462 | ifeq ($(KBUILD_EXTMOD),) |
| 463 | # Additional helpers built in scripts/ | 463 | # Additional helpers built in scripts/ |
| 464 | # Carefully list dependencies so we do not try to build scripts twice | 464 | # Carefully list dependencies so we do not try to build scripts twice |
| 465 | # in parallel | 465 | # in parallel |
| 466 | PHONY += scripts | 466 | PHONY += scripts |
| 467 | scripts: scripts_basic include/config/auto.conf | 467 | scripts: scripts_basic include/config/auto.conf |
| 468 | $(Q)$(MAKE) $(build)=$(@) | 468 | $(Q)$(MAKE) $(build)=$(@) |
| 469 | 469 | ||
| 470 | # Objects we will link into vmlinux / subdirs we need to visit | 470 | # Objects we will link into vmlinux / subdirs we need to visit |
| 471 | init-y := init/ | 471 | init-y := init/ |
| 472 | drivers-y := drivers/ sound/ firmware/ | 472 | drivers-y := drivers/ sound/ firmware/ |
| 473 | net-y := net/ | 473 | net-y := net/ |
| 474 | libs-y := lib/ | 474 | libs-y := lib/ |
| 475 | core-y := usr/ | 475 | core-y := usr/ |
| 476 | endif # KBUILD_EXTMOD | 476 | endif # KBUILD_EXTMOD |
| 477 | 477 | ||
| 478 | ifeq ($(dot-config),1) | 478 | ifeq ($(dot-config),1) |
| 479 | # Read in config | 479 | # Read in config |
| 480 | -include include/config/auto.conf | 480 | -include include/config/auto.conf |
| 481 | 481 | ||
| 482 | ifeq ($(KBUILD_EXTMOD),) | 482 | ifeq ($(KBUILD_EXTMOD),) |
| 483 | # Read in dependencies to all Kconfig* files, make sure to run | 483 | # Read in dependencies to all Kconfig* files, make sure to run |
| 484 | # oldconfig if changes are detected. | 484 | # oldconfig if changes are detected. |
| 485 | -include include/config/auto.conf.cmd | 485 | -include include/config/auto.conf.cmd |
| 486 | 486 | ||
| 487 | # To avoid any implicit rule to kick in, define an empty command | 487 | # To avoid any implicit rule to kick in, define an empty command |
| 488 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; | 488 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; |
| 489 | 489 | ||
| 490 | # If .config is newer than include/config/auto.conf, someone tinkered | 490 | # If .config is newer than include/config/auto.conf, someone tinkered |
| 491 | # with it and forgot to run make oldconfig. | 491 | # with it and forgot to run make oldconfig. |
| 492 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so | 492 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so |
| 493 | # we execute the config step to be sure to catch updated Kconfig files | 493 | # we execute the config step to be sure to catch updated Kconfig files |
| 494 | include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd | 494 | include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
| 495 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig | 495 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig |
| 496 | else | 496 | else |
| 497 | # external modules needs include/linux/autoconf.h and include/config/auto.conf | 497 | # external modules needs include/linux/autoconf.h and include/config/auto.conf |
| 498 | # but do not care if they are up-to-date. Use auto.conf to trigger the test | 498 | # but do not care if they are up-to-date. Use auto.conf to trigger the test |
| 499 | PHONY += include/config/auto.conf | 499 | PHONY += include/config/auto.conf |
| 500 | 500 | ||
| 501 | include/config/auto.conf: | 501 | include/config/auto.conf: |
| 502 | $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \ | 502 | $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \ |
| 503 | echo; \ | 503 | echo; \ |
| 504 | echo " ERROR: Kernel configuration is invalid."; \ | 504 | echo " ERROR: Kernel configuration is invalid."; \ |
| 505 | echo " include/linux/autoconf.h or $@ are missing."; \ | 505 | echo " include/linux/autoconf.h or $@ are missing."; \ |
| 506 | echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ | 506 | echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ |
| 507 | echo; \ | 507 | echo; \ |
| 508 | /bin/false) | 508 | /bin/false) |
| 509 | 509 | ||
| 510 | endif # KBUILD_EXTMOD | 510 | endif # KBUILD_EXTMOD |
| 511 | 511 | ||
| 512 | else | 512 | else |
| 513 | # Dummy target needed, because used as prerequisite | 513 | # Dummy target needed, because used as prerequisite |
| 514 | include/config/auto.conf: ; | 514 | include/config/auto.conf: ; |
| 515 | endif # $(dot-config) | 515 | endif # $(dot-config) |
| 516 | 516 | ||
| 517 | # The all: target is the default when no target is given on the | 517 | # The all: target is the default when no target is given on the |
| 518 | # command line. | 518 | # command line. |
| 519 | # This allow a user to issue only 'make' to build a kernel including modules | 519 | # This allow a user to issue only 'make' to build a kernel including modules |
| 520 | # Defaults vmlinux but it is usually overridden in the arch makefile | 520 | # Defaults vmlinux but it is usually overridden in the arch makefile |
| 521 | all: vmlinux | 521 | all: vmlinux |
| 522 | 522 | ||
| 523 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE | 523 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
| 524 | KBUILD_CFLAGS += -Os | 524 | KBUILD_CFLAGS += -Os |
| 525 | else | 525 | else |
| 526 | KBUILD_CFLAGS += -O2 | 526 | KBUILD_CFLAGS += -O2 |
| 527 | endif | 527 | endif |
| 528 | 528 | ||
| 529 | include $(srctree)/arch/$(SRCARCH)/Makefile | 529 | include $(srctree)/arch/$(SRCARCH)/Makefile |
| 530 | 530 | ||
| 531 | ifneq (CONFIG_FRAME_WARN,0) | 531 | ifneq (CONFIG_FRAME_WARN,0) |
| 532 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) | 532 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) |
| 533 | endif | 533 | endif |
| 534 | 534 | ||
| 535 | # Force gcc to behave correct even for buggy distributions | 535 | # Force gcc to behave correct even for buggy distributions |
| 536 | # Arch Makefiles may override this setting | 536 | # Arch Makefiles may override this setting |
| 537 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) | 537 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) |
| 538 | 538 | ||
| 539 | ifdef CONFIG_FRAME_POINTER | 539 | ifdef CONFIG_FRAME_POINTER |
| 540 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls | 540 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
| 541 | else | 541 | else |
| 542 | KBUILD_CFLAGS += -fomit-frame-pointer | 542 | KBUILD_CFLAGS += -fomit-frame-pointer |
| 543 | endif | 543 | endif |
| 544 | 544 | ||
| 545 | ifdef CONFIG_DEBUG_INFO | 545 | ifdef CONFIG_DEBUG_INFO |
| 546 | KBUILD_CFLAGS += -g | 546 | KBUILD_CFLAGS += -g |
| 547 | KBUILD_AFLAGS += -gdwarf-2 | 547 | KBUILD_AFLAGS += -gdwarf-2 |
| 548 | endif | 548 | endif |
| 549 | 549 | ||
| 550 | ifdef CONFIG_FUNCTION_TRACER | 550 | ifdef CONFIG_FUNCTION_TRACER |
| 551 | KBUILD_CFLAGS += -pg | 551 | KBUILD_CFLAGS += -pg |
| 552 | endif | 552 | endif |
| 553 | 553 | ||
| 554 | # We trigger additional mismatches with less inlining | 554 | # We trigger additional mismatches with less inlining |
| 555 | ifdef CONFIG_DEBUG_SECTION_MISMATCH | 555 | ifdef CONFIG_DEBUG_SECTION_MISMATCH |
| 556 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) | 556 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) |
| 557 | endif | 557 | endif |
| 558 | 558 | ||
| 559 | # arch Makefile may override CC so keep this after arch Makefile is included | 559 | # arch Makefile may override CC so keep this after arch Makefile is included |
| 560 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) | 560 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
| 561 | CHECKFLAGS += $(NOSTDINC_FLAGS) | 561 | CHECKFLAGS += $(NOSTDINC_FLAGS) |
| 562 | 562 | ||
| 563 | # warn about C99 declaration after statement | 563 | # warn about C99 declaration after statement |
| 564 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) | 564 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
| 565 | 565 | ||
| 566 | # disable pointer signed / unsigned warnings in gcc 4.0 | 566 | # disable pointer signed / unsigned warnings in gcc 4.0 |
| 567 | KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) | 567 | KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) |
| 568 | 568 | ||
| 569 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments | 569 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
| 570 | # But warn user when we do so | 570 | # But warn user when we do so |
| 571 | warn-assign = \ | 571 | warn-assign = \ |
| 572 | $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") | 572 | $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") |
| 573 | 573 | ||
| 574 | ifneq ($(KCPPFLAGS),) | 574 | ifneq ($(KCPPFLAGS),) |
| 575 | $(call warn-assign,CPPFLAGS) | 575 | $(call warn-assign,CPPFLAGS) |
| 576 | KBUILD_CPPFLAGS += $(KCPPFLAGS) | 576 | KBUILD_CPPFLAGS += $(KCPPFLAGS) |
| 577 | endif | 577 | endif |
| 578 | ifneq ($(KAFLAGS),) | 578 | ifneq ($(KAFLAGS),) |
| 579 | $(call warn-assign,AFLAGS) | 579 | $(call warn-assign,AFLAGS) |
| 580 | KBUILD_AFLAGS += $(KAFLAGS) | 580 | KBUILD_AFLAGS += $(KAFLAGS) |
| 581 | endif | 581 | endif |
| 582 | ifneq ($(KCFLAGS),) | 582 | ifneq ($(KCFLAGS),) |
| 583 | $(call warn-assign,CFLAGS) | 583 | $(call warn-assign,CFLAGS) |
| 584 | KBUILD_CFLAGS += $(KCFLAGS) | 584 | KBUILD_CFLAGS += $(KCFLAGS) |
| 585 | endif | 585 | endif |
| 586 | 586 | ||
| 587 | # Use --build-id when available. | 587 | # Use --build-id when available. |
| 588 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ | 588 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ |
| 589 | $(call ld-option, -Wl$(comma)--build-id,)) | 589 | $(call ld-option, -Wl$(comma)--build-id,)) |
| 590 | LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) | 590 | LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) |
| 591 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) | 591 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) |
| 592 | 592 | ||
| 593 | # Default kernel image to build when no specific target is given. | 593 | # Default kernel image to build when no specific target is given. |
| 594 | # KBUILD_IMAGE may be overruled on the command line or | 594 | # KBUILD_IMAGE may be overruled on the command line or |
| 595 | # set in the environment | 595 | # set in the environment |
| 596 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over | 596 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over |
| 597 | # this default value | 597 | # this default value |
| 598 | export KBUILD_IMAGE ?= vmlinux | 598 | export KBUILD_IMAGE ?= vmlinux |
| 599 | 599 | ||
| 600 | # | 600 | # |
| 601 | # INSTALL_PATH specifies where to place the updated kernel and system map | 601 | # INSTALL_PATH specifies where to place the updated kernel and system map |
| 602 | # images. Default is /boot, but you can set it to other values | 602 | # images. Default is /boot, but you can set it to other values |
| 603 | export INSTALL_PATH ?= /boot | 603 | export INSTALL_PATH ?= /boot |
| 604 | 604 | ||
| 605 | # | 605 | # |
| 606 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory | 606 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory |
| 607 | # relocations required by build roots. This is not defined in the | 607 | # relocations required by build roots. This is not defined in the |
| 608 | # makefile but the argument can be passed to make if needed. | 608 | # makefile but the argument can be passed to make if needed. |
| 609 | # | 609 | # |
| 610 | 610 | ||
| 611 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) | 611 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
| 612 | export MODLIB | 612 | export MODLIB |
| 613 | 613 | ||
| 614 | # | 614 | # |
| 615 | # INSTALL_MOD_STRIP, if defined, will cause modules to be | 615 | # INSTALL_MOD_STRIP, if defined, will cause modules to be |
| 616 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then | 616 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then |
| 617 | # the default option --strip-debug will be used. Otherwise, | 617 | # the default option --strip-debug will be used. Otherwise, |
| 618 | # INSTALL_MOD_STRIP will used as the options to the strip command. | 618 | # INSTALL_MOD_STRIP will used as the options to the strip command. |
| 619 | 619 | ||
| 620 | ifdef INSTALL_MOD_STRIP | 620 | ifdef INSTALL_MOD_STRIP |
| 621 | ifeq ($(INSTALL_MOD_STRIP),1) | 621 | ifeq ($(INSTALL_MOD_STRIP),1) |
| 622 | mod_strip_cmd = $(STRIP) --strip-debug | 622 | mod_strip_cmd = $(STRIP) --strip-debug |
| 623 | else | 623 | else |
| 624 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) | 624 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
| 625 | endif # INSTALL_MOD_STRIP=1 | 625 | endif # INSTALL_MOD_STRIP=1 |
| 626 | else | 626 | else |
| 627 | mod_strip_cmd = true | 627 | mod_strip_cmd = true |
| 628 | endif # INSTALL_MOD_STRIP | 628 | endif # INSTALL_MOD_STRIP |
| 629 | export mod_strip_cmd | 629 | export mod_strip_cmd |
| 630 | 630 | ||
| 631 | 631 | ||
| 632 | ifeq ($(KBUILD_EXTMOD),) | 632 | ifeq ($(KBUILD_EXTMOD),) |
| 633 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ | 633 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
| 634 | 634 | ||
| 635 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ | 635 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ |
| 636 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ | 636 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ |
| 637 | $(net-y) $(net-m) $(libs-y) $(libs-m))) | 637 | $(net-y) $(net-m) $(libs-y) $(libs-m))) |
| 638 | 638 | ||
| 639 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ | 639 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ |
| 640 | $(init-n) $(init-) \ | 640 | $(init-n) $(init-) \ |
| 641 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ | 641 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ |
| 642 | $(net-n) $(net-) $(libs-n) $(libs-)))) | 642 | $(net-n) $(net-) $(libs-n) $(libs-)))) |
| 643 | 643 | ||
| 644 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) | 644 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) |
| 645 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) | 645 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) |
| 646 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) | 646 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) |
| 647 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) | 647 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) |
| 648 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) | 648 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) |
| 649 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) | 649 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) |
| 650 | libs-y := $(libs-y1) $(libs-y2) | 650 | libs-y := $(libs-y1) $(libs-y2) |
| 651 | 651 | ||
| 652 | # Build vmlinux | 652 | # Build vmlinux |
| 653 | # --------------------------------------------------------------------------- | 653 | # --------------------------------------------------------------------------- |
| 654 | # vmlinux is built from the objects selected by $(vmlinux-init) and | 654 | # vmlinux is built from the objects selected by $(vmlinux-init) and |
| 655 | # $(vmlinux-main). Most are built-in.o files from top-level directories | 655 | # $(vmlinux-main). Most are built-in.o files from top-level directories |
| 656 | # in the kernel tree, others are specified in arch/$(ARCH)/Makefile. | 656 | # in the kernel tree, others are specified in arch/$(ARCH)/Makefile. |
| 657 | # Ordering when linking is important, and $(vmlinux-init) must be first. | 657 | # Ordering when linking is important, and $(vmlinux-init) must be first. |
| 658 | # | 658 | # |
| 659 | # vmlinux | 659 | # vmlinux |
| 660 | # ^ | 660 | # ^ |
| 661 | # | | 661 | # | |
| 662 | # +-< $(vmlinux-init) | 662 | # +-< $(vmlinux-init) |
| 663 | # | +--< init/version.o + more | 663 | # | +--< init/version.o + more |
| 664 | # | | 664 | # | |
| 665 | # +--< $(vmlinux-main) | 665 | # +--< $(vmlinux-main) |
| 666 | # | +--< driver/built-in.o mm/built-in.o + more | 666 | # | +--< driver/built-in.o mm/built-in.o + more |
| 667 | # | | 667 | # | |
| 668 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) | 668 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) |
| 669 | # | 669 | # |
| 670 | # vmlinux version (uname -v) cannot be updated during normal | 670 | # vmlinux version (uname -v) cannot be updated during normal |
| 671 | # descending-into-subdirs phase since we do not yet know if we need to | 671 | # descending-into-subdirs phase since we do not yet know if we need to |
| 672 | # update vmlinux. | 672 | # update vmlinux. |
| 673 | # Therefore this step is delayed until just before final link of vmlinux - | 673 | # Therefore this step is delayed until just before final link of vmlinux - |
| 674 | # except in the kallsyms case where it is done just before adding the | 674 | # except in the kallsyms case where it is done just before adding the |
| 675 | # symbols to the kernel. | 675 | # symbols to the kernel. |
| 676 | # | 676 | # |
| 677 | # System.map is generated to document addresses of all kernel symbols | 677 | # System.map is generated to document addresses of all kernel symbols |
| 678 | 678 | ||
| 679 | vmlinux-init := $(head-y) $(init-y) | 679 | vmlinux-init := $(head-y) $(init-y) |
| 680 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) | 680 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) |
| 681 | vmlinux-all := $(vmlinux-init) $(vmlinux-main) | 681 | vmlinux-all := $(vmlinux-init) $(vmlinux-main) |
| 682 | vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds | 682 | vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds |
| 683 | export KBUILD_VMLINUX_OBJS := $(vmlinux-all) | 683 | export KBUILD_VMLINUX_OBJS := $(vmlinux-all) |
| 684 | 684 | ||
| 685 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS | 685 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS |
| 686 | # May be overridden by arch/$(ARCH)/Makefile | 686 | # May be overridden by arch/$(ARCH)/Makefile |
| 687 | quiet_cmd_vmlinux__ ?= LD $@ | 687 | quiet_cmd_vmlinux__ ?= LD $@ |
| 688 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ | 688 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ |
| 689 | -T $(vmlinux-lds) $(vmlinux-init) \ | 689 | -T $(vmlinux-lds) $(vmlinux-init) \ |
| 690 | --start-group $(vmlinux-main) --end-group \ | 690 | --start-group $(vmlinux-main) --end-group \ |
| 691 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) | 691 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) |
| 692 | 692 | ||
| 693 | # Generate new vmlinux version | 693 | # Generate new vmlinux version |
| 694 | quiet_cmd_vmlinux_version = GEN .version | 694 | quiet_cmd_vmlinux_version = GEN .version |
| 695 | cmd_vmlinux_version = set -e; \ | 695 | cmd_vmlinux_version = set -e; \ |
| 696 | if [ ! -r .version ]; then \ | 696 | if [ ! -r .version ]; then \ |
| 697 | rm -f .version; \ | 697 | rm -f .version; \ |
| 698 | echo 1 >.version; \ | 698 | echo 1 >.version; \ |
| 699 | else \ | 699 | else \ |
| 700 | mv .version .old_version; \ | 700 | mv .version .old_version; \ |
| 701 | expr 0$$(cat .old_version) + 1 >.version; \ | 701 | expr 0$$(cat .old_version) + 1 >.version; \ |
| 702 | fi; \ | 702 | fi; \ |
| 703 | $(MAKE) $(build)=init | 703 | $(MAKE) $(build)=init |
| 704 | 704 | ||
| 705 | # Generate System.map | 705 | # Generate System.map |
| 706 | quiet_cmd_sysmap = SYSMAP | 706 | quiet_cmd_sysmap = SYSMAP |
| 707 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap | 707 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap |
| 708 | 708 | ||
| 709 | # Link of vmlinux | 709 | # Link of vmlinux |
| 710 | # If CONFIG_KALLSYMS is set .version is already updated | 710 | # If CONFIG_KALLSYMS is set .version is already updated |
| 711 | # Generate System.map and verify that the content is consistent | 711 | # Generate System.map and verify that the content is consistent |
| 712 | # Use + in front of the vmlinux_version rule to silent warning with make -j2 | 712 | # Use + in front of the vmlinux_version rule to silent warning with make -j2 |
| 713 | # First command is ':' to allow us to use + in front of the rule | 713 | # First command is ':' to allow us to use + in front of the rule |
| 714 | define rule_vmlinux__ | 714 | define rule_vmlinux__ |
| 715 | : | 715 | : |
| 716 | $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) | 716 | $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) |
| 717 | 717 | ||
| 718 | $(call cmd,vmlinux__) | 718 | $(call cmd,vmlinux__) |
| 719 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | 719 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
| 720 | 720 | ||
| 721 | $(Q)$(if $($(quiet)cmd_sysmap), \ | 721 | $(Q)$(if $($(quiet)cmd_sysmap), \ |
| 722 | echo ' $($(quiet)cmd_sysmap) System.map' &&) \ | 722 | echo ' $($(quiet)cmd_sysmap) System.map' &&) \ |
| 723 | $(cmd_sysmap) $@ System.map; \ | 723 | $(cmd_sysmap) $@ System.map; \ |
| 724 | if [ $$? -ne 0 ]; then \ | 724 | if [ $$? -ne 0 ]; then \ |
| 725 | rm -f $@; \ | 725 | rm -f $@; \ |
| 726 | /bin/false; \ | 726 | /bin/false; \ |
| 727 | fi; | 727 | fi; |
| 728 | $(verify_kallsyms) | 728 | $(verify_kallsyms) |
| 729 | endef | 729 | endef |
| 730 | 730 | ||
| 731 | 731 | ||
| 732 | ifdef CONFIG_KALLSYMS | 732 | ifdef CONFIG_KALLSYMS |
| 733 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) | 733 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) |
| 734 | # It's a three stage process: | 734 | # It's a three stage process: |
| 735 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is | 735 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is |
| 736 | # empty | 736 | # empty |
| 737 | # Running kallsyms on that gives us .tmp_kallsyms1.o with | 737 | # Running kallsyms on that gives us .tmp_kallsyms1.o with |
| 738 | # the right size - vmlinux version (uname -v) is updated during this step | 738 | # the right size - vmlinux version (uname -v) is updated during this step |
| 739 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size, | 739 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size, |
| 740 | # but due to the added section, some addresses have shifted. | 740 | # but due to the added section, some addresses have shifted. |
| 741 | # From here, we generate a correct .tmp_kallsyms2.o | 741 | # From here, we generate a correct .tmp_kallsyms2.o |
| 742 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. | 742 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. |
| 743 | # o Verify that the System.map from vmlinux matches the map from | 743 | # o Verify that the System.map from vmlinux matches the map from |
| 744 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. | 744 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. |
| 745 | # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using | 745 | # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using |
| 746 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a | 746 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a |
| 747 | # temporary bypass to allow the kernel to be built while the | 747 | # temporary bypass to allow the kernel to be built while the |
| 748 | # maintainers work out what went wrong with kallsyms. | 748 | # maintainers work out what went wrong with kallsyms. |
| 749 | 749 | ||
| 750 | ifdef CONFIG_KALLSYMS_EXTRA_PASS | 750 | ifdef CONFIG_KALLSYMS_EXTRA_PASS |
| 751 | last_kallsyms := 3 | 751 | last_kallsyms := 3 |
| 752 | else | 752 | else |
| 753 | last_kallsyms := 2 | 753 | last_kallsyms := 2 |
| 754 | endif | 754 | endif |
| 755 | 755 | ||
| 756 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o | 756 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o |
| 757 | 757 | ||
| 758 | define verify_kallsyms | 758 | define verify_kallsyms |
| 759 | $(Q)$(if $($(quiet)cmd_sysmap), \ | 759 | $(Q)$(if $($(quiet)cmd_sysmap), \ |
| 760 | echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ | 760 | echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ |
| 761 | $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map | 761 | $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map |
| 762 | $(Q)cmp -s System.map .tmp_System.map || \ | 762 | $(Q)cmp -s System.map .tmp_System.map || \ |
| 763 | (echo Inconsistent kallsyms data; \ | 763 | (echo Inconsistent kallsyms data; \ |
| 764 | echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ | 764 | echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ |
| 765 | rm .tmp_kallsyms* ; /bin/false ) | 765 | rm .tmp_kallsyms* ; /bin/false ) |
| 766 | endef | 766 | endef |
| 767 | 767 | ||
| 768 | # Update vmlinux version before link | 768 | # Update vmlinux version before link |
| 769 | # Use + in front of this rule to silent warning about make -j1 | 769 | # Use + in front of this rule to silent warning about make -j1 |
| 770 | # First command is ':' to allow us to use + in front of this rule | 770 | # First command is ':' to allow us to use + in front of this rule |
| 771 | cmd_ksym_ld = $(cmd_vmlinux__) | 771 | cmd_ksym_ld = $(cmd_vmlinux__) |
| 772 | define rule_ksym_ld | 772 | define rule_ksym_ld |
| 773 | : | 773 | : |
| 774 | +$(call cmd,vmlinux_version) | 774 | +$(call cmd,vmlinux_version) |
| 775 | $(call cmd,vmlinux__) | 775 | $(call cmd,vmlinux__) |
| 776 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | 776 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
| 777 | endef | 777 | endef |
| 778 | 778 | ||
| 779 | # Generate .S file with all kernel symbols | 779 | # Generate .S file with all kernel symbols |
| 780 | quiet_cmd_kallsyms = KSYM $@ | 780 | quiet_cmd_kallsyms = KSYM $@ |
| 781 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ | 781 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ |
| 782 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ | 782 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ |
| 783 | 783 | ||
| 784 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE | 784 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE |
| 785 | $(call if_changed_dep,as_o_S) | 785 | $(call if_changed_dep,as_o_S) |
| 786 | 786 | ||
| 787 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) | 787 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) |
| 788 | $(call cmd,kallsyms) | 788 | $(call cmd,kallsyms) |
| 789 | 789 | ||
| 790 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version | 790 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version |
| 791 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE | 791 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE |
| 792 | $(call if_changed_rule,ksym_ld) | 792 | $(call if_changed_rule,ksym_ld) |
| 793 | 793 | ||
| 794 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE | 794 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE |
| 795 | $(call if_changed,vmlinux__) | 795 | $(call if_changed,vmlinux__) |
| 796 | 796 | ||
| 797 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE | 797 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE |
| 798 | $(call if_changed,vmlinux__) | 798 | $(call if_changed,vmlinux__) |
| 799 | 799 | ||
| 800 | # Needs to visit scripts/ before $(KALLSYMS) can be used. | 800 | # Needs to visit scripts/ before $(KALLSYMS) can be used. |
| 801 | $(KALLSYMS): scripts ; | 801 | $(KALLSYMS): scripts ; |
| 802 | 802 | ||
| 803 | # Generate some data for debugging strange kallsyms problems | 803 | # Generate some data for debugging strange kallsyms problems |
| 804 | debug_kallsyms: .tmp_map$(last_kallsyms) | 804 | debug_kallsyms: .tmp_map$(last_kallsyms) |
| 805 | 805 | ||
| 806 | .tmp_map%: .tmp_vmlinux% FORCE | 806 | .tmp_map%: .tmp_vmlinux% FORCE |
| 807 | ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ | 807 | ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ |
| 808 | 808 | ||
| 809 | .tmp_map3: .tmp_map2 | 809 | .tmp_map3: .tmp_map2 |
| 810 | 810 | ||
| 811 | .tmp_map2: .tmp_map1 | 811 | .tmp_map2: .tmp_map1 |
| 812 | 812 | ||
| 813 | endif # ifdef CONFIG_KALLSYMS | 813 | endif # ifdef CONFIG_KALLSYMS |
| 814 | 814 | ||
| 815 | # Do modpost on a prelinked vmlinux. The finally linked vmlinux has | 815 | # Do modpost on a prelinked vmlinux. The finally linked vmlinux has |
| 816 | # relevant sections renamed as per the linker script. | 816 | # relevant sections renamed as per the linker script. |
| 817 | quiet_cmd_vmlinux-modpost = LD $@ | 817 | quiet_cmd_vmlinux-modpost = LD $@ |
| 818 | cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ | 818 | cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ |
| 819 | $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ | 819 | $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ |
| 820 | $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) | 820 | $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) |
| 821 | define rule_vmlinux-modpost | 821 | define rule_vmlinux-modpost |
| 822 | : | 822 | : |
| 823 | +$(call cmd,vmlinux-modpost) | 823 | +$(call cmd,vmlinux-modpost) |
| 824 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ | 824 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ |
| 825 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd | 825 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd |
| 826 | endef | 826 | endef |
| 827 | 827 | ||
| 828 | # vmlinux image - including updated kernel symbols | 828 | # vmlinux image - including updated kernel symbols |
| 829 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE | 829 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE |
| 830 | ifdef CONFIG_HEADERS_CHECK | 830 | ifdef CONFIG_HEADERS_CHECK |
| 831 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check | 831 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
| 832 | endif | 832 | endif |
| 833 | ifdef CONFIG_SAMPLES | 833 | ifdef CONFIG_SAMPLES |
| 834 | $(Q)$(MAKE) $(build)=samples | 834 | $(Q)$(MAKE) $(build)=samples |
| 835 | endif | 835 | endif |
| 836 | ifdef CONFIG_BUILD_DOCSRC | 836 | ifdef CONFIG_BUILD_DOCSRC |
| 837 | $(Q)$(MAKE) $(build)=Documentation | 837 | $(Q)$(MAKE) $(build)=Documentation |
| 838 | endif | 838 | endif |
| 839 | $(call vmlinux-modpost) | 839 | $(call vmlinux-modpost) |
| 840 | $(call if_changed_rule,vmlinux__) | 840 | $(call if_changed_rule,vmlinux__) |
| 841 | $(Q)rm -f .old_version | 841 | $(Q)rm -f .old_version |
| 842 | 842 | ||
| 843 | # build vmlinux.o first to catch section mismatch errors early | 843 | # build vmlinux.o first to catch section mismatch errors early |
| 844 | ifdef CONFIG_KALLSYMS | 844 | ifdef CONFIG_KALLSYMS |
| 845 | .tmp_vmlinux1: vmlinux.o | 845 | .tmp_vmlinux1: vmlinux.o |
| 846 | endif | 846 | endif |
| 847 | 847 | ||
| 848 | modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) | 848 | modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) |
| 849 | vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE | 849 | vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE |
| 850 | $(call if_changed_rule,vmlinux-modpost) | 850 | $(call if_changed_rule,vmlinux-modpost) |
| 851 | 851 | ||
| 852 | # The actual objects are generated when descending, | 852 | # The actual objects are generated when descending, |
| 853 | # make sure no implicit rule kicks in | 853 | # make sure no implicit rule kicks in |
| 854 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; | 854 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; |
| 855 | 855 | ||
| 856 | # Handle descending into subdirectories listed in $(vmlinux-dirs) | 856 | # Handle descending into subdirectories listed in $(vmlinux-dirs) |
| 857 | # Preset locale variables to speed up the build process. Limit locale | 857 | # Preset locale variables to speed up the build process. Limit locale |
| 858 | # tweaks to this spot to avoid wrong language settings when running | 858 | # tweaks to this spot to avoid wrong language settings when running |
| 859 | # make menuconfig etc. | 859 | # make menuconfig etc. |
| 860 | # Error messages still appears in the original language | 860 | # Error messages still appears in the original language |
| 861 | 861 | ||
| 862 | PHONY += $(vmlinux-dirs) | 862 | PHONY += $(vmlinux-dirs) |
| 863 | $(vmlinux-dirs): prepare scripts | 863 | $(vmlinux-dirs): prepare scripts |
| 864 | $(Q)$(MAKE) $(build)=$@ | 864 | $(Q)$(MAKE) $(build)=$@ |
| 865 | 865 | ||
| 866 | # Build the kernel release string | 866 | # Build the kernel release string |
| 867 | # | 867 | # |
| 868 | # The KERNELRELEASE value built here is stored in the file | 868 | # The KERNELRELEASE value built here is stored in the file |
| 869 | # include/config/kernel.release, and is used when executing several | 869 | # include/config/kernel.release, and is used when executing several |
| 870 | # make targets, such as "make install" or "make modules_install." | 870 | # make targets, such as "make install" or "make modules_install." |
| 871 | # | 871 | # |
| 872 | # The eventual kernel release string consists of the following fields, | 872 | # The eventual kernel release string consists of the following fields, |
| 873 | # shown in a hierarchical format to show how smaller parts are concatenated | 873 | # shown in a hierarchical format to show how smaller parts are concatenated |
| 874 | # to form the larger and final value, with values coming from places like | 874 | # to form the larger and final value, with values coming from places like |
| 875 | # the Makefile, kernel config options, make command line options and/or | 875 | # the Makefile, kernel config options, make command line options and/or |
| 876 | # SCM tag information. | 876 | # SCM tag information. |
| 877 | # | 877 | # |
| 878 | # $(KERNELVERSION) | 878 | # $(KERNELVERSION) |
| 879 | # $(VERSION) eg, 2 | 879 | # $(VERSION) eg, 2 |
| 880 | # $(PATCHLEVEL) eg, 6 | 880 | # $(PATCHLEVEL) eg, 6 |
| 881 | # $(SUBLEVEL) eg, 18 | 881 | # $(SUBLEVEL) eg, 18 |
| 882 | # $(EXTRAVERSION) eg, -rc6 | 882 | # $(EXTRAVERSION) eg, -rc6 |
| 883 | # $(localver-full) | 883 | # $(localver-full) |
| 884 | # $(localver) | 884 | # $(localver) |
| 885 | # localversion* (files without backups, containing '~') | 885 | # localversion* (files without backups, containing '~') |
| 886 | # $(CONFIG_LOCALVERSION) (from kernel config setting) | 886 | # $(CONFIG_LOCALVERSION) (from kernel config setting) |
| 887 | # $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set) | 887 | # $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set) |
| 888 | # ./scripts/setlocalversion (SCM tag, if one exists) | 888 | # ./scripts/setlocalversion (SCM tag, if one exists) |
| 889 | # $(LOCALVERSION) (from make command line if provided) | 889 | # $(LOCALVERSION) (from make command line if provided) |
| 890 | # | 890 | # |
| 891 | # Note how the final $(localver-auto) string is included *only* if the | 891 | # Note how the final $(localver-auto) string is included *only* if the |
| 892 | # kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the | 892 | # kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the |
| 893 | # moment, only git is supported but other SCMs can edit the script | 893 | # moment, only git is supported but other SCMs can edit the script |
| 894 | # scripts/setlocalversion and add the appropriate checks as needed. | 894 | # scripts/setlocalversion and add the appropriate checks as needed. |
| 895 | 895 | ||
| 896 | pattern = ".*/localversion[^~]*" | 896 | pattern = ".*/localversion[^~]*" |
| 897 | string = $(shell cat /dev/null \ | 897 | string = $(shell cat /dev/null \ |
| 898 | `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`) | 898 | `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`) |
| 899 | 899 | ||
| 900 | localver = $(subst $(space),, $(string) \ | 900 | localver = $(subst $(space),, $(string) \ |
| 901 | $(patsubst "%",%,$(CONFIG_LOCALVERSION))) | 901 | $(patsubst "%",%,$(CONFIG_LOCALVERSION))) |
| 902 | 902 | ||
| 903 | # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called | 903 | # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called |
| 904 | # and if the SCM is know a tag from the SCM is appended. | 904 | # and if the SCM is know a tag from the SCM is appended. |
| 905 | # The appended tag is determined by the SCM used. | 905 | # The appended tag is determined by the SCM used. |
| 906 | # | 906 | # |
| 907 | # .scmversion is used when generating rpm packages so we do not loose | 907 | # .scmversion is used when generating rpm packages so we do not loose |
| 908 | # the version information from the SCM when we do the build of the kernel | 908 | # the version information from the SCM when we do the build of the kernel |
| 909 | # from the copied source | 909 | # from the copied source |
| 910 | ifdef CONFIG_LOCALVERSION_AUTO | 910 | ifdef CONFIG_LOCALVERSION_AUTO |
| 911 | 911 | ||
| 912 | ifeq ($(wildcard .scmversion),) | 912 | ifeq ($(wildcard .scmversion),) |
| 913 | _localver-auto = $(shell $(CONFIG_SHELL) \ | 913 | _localver-auto = $(shell $(CONFIG_SHELL) \ |
| 914 | $(srctree)/scripts/setlocalversion $(srctree)) | 914 | $(srctree)/scripts/setlocalversion $(srctree)) |
| 915 | else | 915 | else |
| 916 | _localver-auto = $(shell cat .scmversion 2> /dev/null) | 916 | _localver-auto = $(shell cat .scmversion 2> /dev/null) |
| 917 | endif | 917 | endif |
| 918 | 918 | ||
| 919 | localver-auto = $(LOCALVERSION)$(_localver-auto) | 919 | localver-auto = $(LOCALVERSION)$(_localver-auto) |
| 920 | endif | 920 | endif |
| 921 | 921 | ||
| 922 | localver-full = $(localver)$(localver-auto) | 922 | localver-full = $(localver)$(localver-auto) |
| 923 | 923 | ||
| 924 | # Store (new) KERNELRELASE string in include/config/kernel.release | 924 | # Store (new) KERNELRELASE string in include/config/kernel.release |
| 925 | kernelrelease = $(KERNELVERSION)$(localver-full) | 925 | kernelrelease = $(KERNELVERSION)$(localver-full) |
| 926 | include/config/kernel.release: include/config/auto.conf FORCE | 926 | include/config/kernel.release: include/config/auto.conf FORCE |
| 927 | $(Q)rm -f $@ | 927 | $(Q)rm -f $@ |
| 928 | $(Q)echo $(kernelrelease) > $@ | 928 | $(Q)echo $(kernelrelease) > $@ |
| 929 | 929 | ||
| 930 | 930 | ||
| 931 | # Things we need to do before we recursively start building the kernel | 931 | # Things we need to do before we recursively start building the kernel |
| 932 | # or the modules are listed in "prepare". | 932 | # or the modules are listed in "prepare". |
| 933 | # A multi level approach is used. prepareN is processed before prepareN-1. | 933 | # A multi level approach is used. prepareN is processed before prepareN-1. |
| 934 | # archprepare is used in arch Makefiles and when processed asm symlink, | 934 | # archprepare is used in arch Makefiles and when processed asm symlink, |
| 935 | # version.h and scripts_basic is processed / created. | 935 | # version.h and scripts_basic is processed / created. |
| 936 | 936 | ||
| 937 | # Listed in dependency order | 937 | # Listed in dependency order |
| 938 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 | 938 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
| 939 | 939 | ||
| 940 | # prepare3 is used to check if we are building in a separate output directory, | 940 | # prepare3 is used to check if we are building in a separate output directory, |
| 941 | # and if so do: | 941 | # and if so do: |
| 942 | # 1) Check that make has not been executed in the kernel src $(srctree) | 942 | # 1) Check that make has not been executed in the kernel src $(srctree) |
| 943 | # 2) Create the include2 directory, used for the second asm symlink | 943 | # 2) Create the include2 directory, used for the second asm symlink |
| 944 | prepare3: include/config/kernel.release | 944 | prepare3: include/config/kernel.release |
| 945 | ifneq ($(KBUILD_SRC),) | 945 | ifneq ($(KBUILD_SRC),) |
| 946 | @$(kecho) ' Using $(srctree) as source for kernel' | 946 | @$(kecho) ' Using $(srctree) as source for kernel' |
| 947 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ | 947 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
| 948 | echo " $(srctree) is not clean, please run 'make mrproper'";\ | 948 | echo " $(srctree) is not clean, please run 'make mrproper'";\ |
| 949 | echo " in the '$(srctree)' directory.";\ | 949 | echo " in the '$(srctree)' directory.";\ |
| 950 | /bin/false; \ | 950 | /bin/false; \ |
| 951 | fi; | 951 | fi; |
| 952 | $(Q)if [ ! -d include2 ]; then \ | 952 | $(Q)if [ ! -d include2 ]; then \ |
| 953 | mkdir -p include2; \ | 953 | mkdir -p include2; \ |
| 954 | ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \ | 954 | ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \ |
| 955 | fi | 955 | fi |
| 956 | endif | 956 | endif |
| 957 | 957 | ||
| 958 | # prepare2 creates a makefile if using a separate output directory | 958 | # prepare2 creates a makefile if using a separate output directory |
| 959 | prepare2: prepare3 outputmakefile | 959 | prepare2: prepare3 outputmakefile |
| 960 | 960 | ||
| 961 | prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \ | 961 | prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \ |
| 962 | include/asm include/config/auto.conf | 962 | include/asm include/config/auto.conf |
| 963 | $(cmd_crmodverdir) | 963 | $(cmd_crmodverdir) |
| 964 | 964 | ||
| 965 | archprepare: prepare1 scripts_basic | 965 | archprepare: prepare1 scripts_basic |
| 966 | 966 | ||
| 967 | prepare0: archprepare FORCE | 967 | prepare0: archprepare FORCE |
| 968 | $(Q)$(MAKE) $(build)=. | 968 | $(Q)$(MAKE) $(build)=. |
| 969 | $(Q)$(MAKE) $(build)=. missing-syscalls | 969 | $(Q)$(MAKE) $(build)=. missing-syscalls |
| 970 | 970 | ||
| 971 | # All the preparing.. | 971 | # All the preparing.. |
| 972 | prepare: prepare0 | 972 | prepare: prepare0 |
| 973 | 973 | ||
| 974 | # Leave this as default for preprocessing vmlinux.lds.S, which is now | 974 | # Leave this as default for preprocessing vmlinux.lds.S, which is now |
| 975 | # done in arch/$(ARCH)/kernel/Makefile | 975 | # done in arch/$(ARCH)/kernel/Makefile |
| 976 | 976 | ||
| 977 | export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) | 977 | export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) |
| 978 | 978 | ||
| 979 | # The asm symlink changes when $(ARCH) changes. | 979 | # The asm symlink changes when $(ARCH) changes. |
| 980 | # Detect this and ask user to run make mrproper | 980 | # Detect this and ask user to run make mrproper |
| 981 | # If asm is a stale symlink (point to dir that does not exist) remove it | 981 | # If asm is a stale symlink (point to dir that does not exist) remove it |
| 982 | define check-symlink | 982 | define check-symlink |
| 983 | set -e; \ | 983 | set -e; \ |
| 984 | if [ -L include/asm ]; then \ | 984 | if [ -L include/asm ]; then \ |
| 985 | asmlink=`readlink include/asm | cut -d '-' -f 2`; \ | 985 | asmlink=`readlink include/asm | cut -d '-' -f 2`; \ |
| 986 | if [ "$$asmlink" != "$(SRCARCH)" ]; then \ | 986 | if [ "$$asmlink" != "$(SRCARCH)" ]; then \ |
| 987 | echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \ | 987 | echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \ |
| 988 | echo " set ARCH or save .config and run 'make mrproper' to fix it"; \ | 988 | echo " set ARCH or save .config and run 'make mrproper' to fix it"; \ |
| 989 | exit 1; \ | 989 | exit 1; \ |
| 990 | fi; \ | 990 | fi; \ |
| 991 | test -e $$asmlink || rm include/asm; \ | 991 | test -e $$asmlink || rm include/asm; \ |
| 992 | elif [ -d include/asm ]; then \ | 992 | elif [ -d include/asm ]; then \ |
| 993 | echo "ERROR: $@ is a directory but a symlink was expected";\ | 993 | echo "ERROR: $@ is a directory but a symlink was expected";\ |
| 994 | exit 1; \ | 994 | exit 1; \ |
| 995 | fi | 995 | fi |
| 996 | endef | 996 | endef |
| 997 | 997 | ||
| 998 | # We create the target directory of the symlink if it does | 998 | # We create the target directory of the symlink if it does |
| 999 | # not exist so the test in check-symlink works and we have a | 999 | # not exist so the test in check-symlink works and we have a |
| 1000 | # directory for generated filesas used by some architectures. | 1000 | # directory for generated filesas used by some architectures. |
| 1001 | define create-symlink | 1001 | define create-symlink |
| 1002 | if [ ! -L include/asm ]; then \ | 1002 | if [ ! -L include/asm ]; then \ |
| 1003 | $(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \ | 1003 | $(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \ |
| 1004 | if [ ! -d include/asm-$(SRCARCH) ]; then \ | 1004 | if [ ! -d include/asm-$(SRCARCH) ]; then \ |
| 1005 | mkdir -p include/asm-$(SRCARCH); \ | 1005 | mkdir -p include/asm-$(SRCARCH); \ |
| 1006 | fi; \ | 1006 | fi; \ |
| 1007 | ln -fsn asm-$(SRCARCH) $@; \ | 1007 | ln -fsn asm-$(SRCARCH) $@; \ |
| 1008 | fi | 1008 | fi |
| 1009 | endef | 1009 | endef |
| 1010 | 1010 | ||
| 1011 | include/asm: FORCE | 1011 | include/asm: FORCE |
| 1012 | $(Q)$(check-symlink) | 1012 | $(Q)$(check-symlink) |
| 1013 | $(Q)$(create-symlink) | 1013 | $(Q)$(create-symlink) |
| 1014 | 1014 | ||
| 1015 | # Generate some files | 1015 | # Generate some files |
| 1016 | # --------------------------------------------------------------------------- | 1016 | # --------------------------------------------------------------------------- |
| 1017 | 1017 | ||
| 1018 | # KERNELRELEASE can change from a few different places, meaning version.h | 1018 | # KERNELRELEASE can change from a few different places, meaning version.h |
| 1019 | # needs to be updated, so this check is forced on all builds | 1019 | # needs to be updated, so this check is forced on all builds |
| 1020 | 1020 | ||
| 1021 | uts_len := 64 | 1021 | uts_len := 64 |
| 1022 | define filechk_utsrelease.h | 1022 | define filechk_utsrelease.h |
| 1023 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ | 1023 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ |
| 1024 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ | 1024 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ |
| 1025 | exit 1; \ | 1025 | exit 1; \ |
| 1026 | fi; \ | 1026 | fi; \ |
| 1027 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) | 1027 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) |
| 1028 | endef | 1028 | endef |
| 1029 | 1029 | ||
| 1030 | define filechk_version.h | 1030 | define filechk_version.h |
| 1031 | (echo \#define LINUX_VERSION_CODE $(shell \ | 1031 | (echo \#define LINUX_VERSION_CODE $(shell \ |
| 1032 | expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ | 1032 | expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ |
| 1033 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) | 1033 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) |
| 1034 | endef | 1034 | endef |
| 1035 | 1035 | ||
| 1036 | include/linux/version.h: $(srctree)/Makefile FORCE | 1036 | include/linux/version.h: $(srctree)/Makefile FORCE |
| 1037 | $(call filechk,version.h) | 1037 | $(call filechk,version.h) |
| 1038 | 1038 | ||
| 1039 | include/linux/utsrelease.h: include/config/kernel.release FORCE | 1039 | include/linux/utsrelease.h: include/config/kernel.release FORCE |
| 1040 | $(call filechk,utsrelease.h) | 1040 | $(call filechk,utsrelease.h) |
| 1041 | 1041 | ||
| 1042 | PHONY += headerdep | 1042 | PHONY += headerdep |
| 1043 | headerdep: | 1043 | headerdep: |
| 1044 | $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl | 1044 | $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl |
| 1045 | 1045 | ||
| 1046 | # --------------------------------------------------------------------------- | 1046 | # --------------------------------------------------------------------------- |
| 1047 | 1047 | ||
| 1048 | PHONY += depend dep | 1048 | PHONY += depend dep |
| 1049 | depend dep: | 1049 | depend dep: |
| 1050 | @echo '*** Warning: make $@ is unnecessary now.' | 1050 | @echo '*** Warning: make $@ is unnecessary now.' |
| 1051 | 1051 | ||
| 1052 | # --------------------------------------------------------------------------- | 1052 | # --------------------------------------------------------------------------- |
| 1053 | # Firmware install | 1053 | # Firmware install |
| 1054 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware | 1054 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware |
| 1055 | export INSTALL_FW_PATH | 1055 | export INSTALL_FW_PATH |
| 1056 | 1056 | ||
| 1057 | PHONY += firmware_install | 1057 | PHONY += firmware_install |
| 1058 | firmware_install: FORCE | 1058 | firmware_install: FORCE |
| 1059 | @mkdir -p $(objtree)/firmware | 1059 | @mkdir -p $(objtree)/firmware |
| 1060 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install | 1060 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install |
| 1061 | 1061 | ||
| 1062 | # --------------------------------------------------------------------------- | 1062 | # --------------------------------------------------------------------------- |
| 1063 | # Kernel headers | 1063 | # Kernel headers |
| 1064 | 1064 | ||
| 1065 | #Default location for installed headers | 1065 | #Default location for installed headers |
| 1066 | export INSTALL_HDR_PATH = $(objtree)/usr | 1066 | export INSTALL_HDR_PATH = $(objtree)/usr |
| 1067 | 1067 | ||
| 1068 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj | 1068 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj |
| 1069 | # Find out where the Kbuild file is located to support | 1069 | # Find out where the Kbuild file is located to support |
| 1070 | # arch/$(ARCH)/include/asm | 1070 | # arch/$(ARCH)/include/asm |
| 1071 | hdr-dir = $(strip \ | 1071 | hdr-dir = $(strip \ |
| 1072 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \ | 1072 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \ |
| 1073 | arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch))) | 1073 | arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch))) |
| 1074 | 1074 | ||
| 1075 | # If we do an all arch process set dst to asm-$(hdr-arch) | 1075 | # If we do an all arch process set dst to asm-$(hdr-arch) |
| 1076 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) | 1076 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) |
| 1077 | 1077 | ||
| 1078 | PHONY += __headers | 1078 | PHONY += __headers |
| 1079 | __headers: include/linux/version.h scripts_basic FORCE | 1079 | __headers: include/linux/version.h scripts_basic FORCE |
| 1080 | $(Q)$(MAKE) $(build)=scripts scripts/unifdef | 1080 | $(Q)$(MAKE) $(build)=scripts scripts/unifdef |
| 1081 | 1081 | ||
| 1082 | PHONY += headers_install_all | 1082 | PHONY += headers_install_all |
| 1083 | headers_install_all: | 1083 | headers_install_all: |
| 1084 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install | 1084 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install |
| 1085 | 1085 | ||
| 1086 | PHONY += headers_install | 1086 | PHONY += headers_install |
| 1087 | headers_install: __headers | 1087 | headers_install: __headers |
| 1088 | $(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \ | 1088 | $(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \ |
| 1089 | $(error Headers not exportable for the $(SRCARCH) architecture)) | 1089 | $(error Headers not exportable for the $(SRCARCH) architecture)) |
| 1090 | $(Q)$(MAKE) $(hdr-inst)=include | 1090 | $(Q)$(MAKE) $(hdr-inst)=include |
| 1091 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) | 1091 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) |
| 1092 | 1092 | ||
| 1093 | PHONY += headers_check_all | 1093 | PHONY += headers_check_all |
| 1094 | headers_check_all: headers_install_all | 1094 | headers_check_all: headers_install_all |
| 1095 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check | 1095 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check |
| 1096 | 1096 | ||
| 1097 | PHONY += headers_check | 1097 | PHONY += headers_check |
| 1098 | headers_check: headers_install | 1098 | headers_check: headers_install |
| 1099 | $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 | 1099 | $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 |
| 1100 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1 | 1100 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1 |
| 1101 | 1101 | ||
| 1102 | # --------------------------------------------------------------------------- | 1102 | # --------------------------------------------------------------------------- |
| 1103 | # Modules | 1103 | # Modules |
| 1104 | 1104 | ||
| 1105 | ifdef CONFIG_MODULES | 1105 | ifdef CONFIG_MODULES |
| 1106 | 1106 | ||
| 1107 | # By default, build modules as well | 1107 | # By default, build modules as well |
| 1108 | 1108 | ||
| 1109 | all: modules | 1109 | all: modules |
| 1110 | 1110 | ||
| 1111 | # Build modules | 1111 | # Build modules |
| 1112 | # | 1112 | # |
| 1113 | # A module can be listed more than once in obj-m resulting in | 1113 | # A module can be listed more than once in obj-m resulting in |
| 1114 | # duplicate lines in modules.order files. Those are removed | 1114 | # duplicate lines in modules.order files. Those are removed |
| 1115 | # using awk while concatenating to the final file. | 1115 | # using awk while concatenating to the final file. |
| 1116 | 1116 | ||
| 1117 | PHONY += modules | 1117 | PHONY += modules |
| 1118 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) | 1118 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) |
| 1119 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order | 1119 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
| 1120 | @$(kecho) ' Building modules, stage 2.'; | 1120 | @$(kecho) ' Building modules, stage 2.'; |
| 1121 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1121 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1122 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild | 1122 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
| 1123 | 1123 | ||
| 1124 | 1124 | ||
| 1125 | # Target to prepare building external modules | 1125 | # Target to prepare building external modules |
| 1126 | PHONY += modules_prepare | 1126 | PHONY += modules_prepare |
| 1127 | modules_prepare: prepare scripts | 1127 | modules_prepare: prepare scripts |
| 1128 | 1128 | ||
| 1129 | # Target to install modules | 1129 | # Target to install modules |
| 1130 | PHONY += modules_install | 1130 | PHONY += modules_install |
| 1131 | modules_install: _modinst_ _modinst_post | 1131 | modules_install: _modinst_ _modinst_post |
| 1132 | 1132 | ||
| 1133 | PHONY += _modinst_ | 1133 | PHONY += _modinst_ |
| 1134 | _modinst_: | 1134 | _modinst_: |
| 1135 | @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ | 1135 | @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ |
| 1136 | echo "Warning: you may need to install module-init-tools"; \ | 1136 | echo "Warning: you may need to install module-init-tools"; \ |
| 1137 | echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ | 1137 | echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ |
| 1138 | sleep 1; \ | 1138 | sleep 1; \ |
| 1139 | fi | 1139 | fi |
| 1140 | @rm -rf $(MODLIB)/kernel | 1140 | @rm -rf $(MODLIB)/kernel |
| 1141 | @rm -f $(MODLIB)/source | 1141 | @rm -f $(MODLIB)/source |
| 1142 | @mkdir -p $(MODLIB)/kernel | 1142 | @mkdir -p $(MODLIB)/kernel |
| 1143 | @ln -s $(srctree) $(MODLIB)/source | 1143 | @ln -s $(srctree) $(MODLIB)/source |
| 1144 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ | 1144 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ |
| 1145 | rm -f $(MODLIB)/build ; \ | 1145 | rm -f $(MODLIB)/build ; \ |
| 1146 | ln -s $(objtree) $(MODLIB)/build ; \ | 1146 | ln -s $(objtree) $(MODLIB)/build ; \ |
| 1147 | fi | 1147 | fi |
| 1148 | @cp -f $(objtree)/modules.order $(MODLIB)/ | 1148 | @cp -f $(objtree)/modules.order $(MODLIB)/ |
| 1149 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1149 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
| 1150 | 1150 | ||
| 1151 | # This depmod is only for convenience to give the initial | 1151 | # This depmod is only for convenience to give the initial |
| 1152 | # boot a modules.dep even before / is mounted read-write. However the | 1152 | # boot a modules.dep even before / is mounted read-write. However the |
| 1153 | # boot script depmod is the master version. | 1153 | # boot script depmod is the master version. |
| 1154 | PHONY += _modinst_post | 1154 | PHONY += _modinst_post |
| 1155 | _modinst_post: _modinst_ | 1155 | _modinst_post: _modinst_ |
| 1156 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst | 1156 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
| 1157 | $(call cmd,depmod) | 1157 | $(call cmd,depmod) |
| 1158 | 1158 | ||
| 1159 | else # CONFIG_MODULES | 1159 | else # CONFIG_MODULES |
| 1160 | 1160 | ||
| 1161 | # Modules not configured | 1161 | # Modules not configured |
| 1162 | # --------------------------------------------------------------------------- | 1162 | # --------------------------------------------------------------------------- |
| 1163 | 1163 | ||
| 1164 | modules modules_install: FORCE | 1164 | modules modules_install: FORCE |
| 1165 | @echo | 1165 | @echo |
| 1166 | @echo "The present kernel configuration has modules disabled." | 1166 | @echo "The present kernel configuration has modules disabled." |
| 1167 | @echo "Type 'make config' and enable loadable module support." | 1167 | @echo "Type 'make config' and enable loadable module support." |
| 1168 | @echo "Then build a kernel with module support enabled." | 1168 | @echo "Then build a kernel with module support enabled." |
| 1169 | @echo | 1169 | @echo |
| 1170 | @exit 1 | 1170 | @exit 1 |
| 1171 | 1171 | ||
| 1172 | endif # CONFIG_MODULES | 1172 | endif # CONFIG_MODULES |
| 1173 | 1173 | ||
| 1174 | ### | 1174 | ### |
| 1175 | # Cleaning is done on three levels. | 1175 | # Cleaning is done on three levels. |
| 1176 | # make clean Delete most generated files | 1176 | # make clean Delete most generated files |
| 1177 | # Leave enough to build external modules | 1177 | # Leave enough to build external modules |
| 1178 | # make mrproper Delete the current configuration, and all generated files | 1178 | # make mrproper Delete the current configuration, and all generated files |
| 1179 | # make distclean Remove editor backup files, patch leftover files and the like | 1179 | # make distclean Remove editor backup files, patch leftover files and the like |
| 1180 | 1180 | ||
| 1181 | # Directories & files removed with 'make clean' | 1181 | # Directories & files removed with 'make clean' |
| 1182 | CLEAN_DIRS += $(MODVERDIR) | 1182 | CLEAN_DIRS += $(MODVERDIR) |
| 1183 | CLEAN_FILES += vmlinux System.map \ | 1183 | CLEAN_FILES += vmlinux System.map \ |
| 1184 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map | 1184 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map |
| 1185 | 1185 | ||
| 1186 | # Directories & files removed with 'make mrproper' | 1186 | # Directories & files removed with 'make mrproper' |
| 1187 | MRPROPER_DIRS += include/config include2 usr/include | 1187 | MRPROPER_DIRS += include/config include2 usr/include |
| 1188 | MRPROPER_FILES += .config .config.old include/asm .version .old_version \ | 1188 | MRPROPER_FILES += .config .config.old include/asm .version .old_version \ |
| 1189 | include/linux/autoconf.h include/linux/version.h \ | 1189 | include/linux/autoconf.h include/linux/version.h \ |
| 1190 | include/linux/utsrelease.h \ | 1190 | include/linux/utsrelease.h \ |
| 1191 | include/linux/bounds.h include/asm*/asm-offsets.h \ | 1191 | include/linux/bounds.h include/asm*/asm-offsets.h \ |
| 1192 | Module.symvers Module.markers tags TAGS cscope* | 1192 | Module.symvers Module.markers tags TAGS cscope* |
| 1193 | 1193 | ||
| 1194 | # clean - Delete most, but leave enough to build external modules | 1194 | # clean - Delete most, but leave enough to build external modules |
| 1195 | # | 1195 | # |
| 1196 | clean: rm-dirs := $(CLEAN_DIRS) | 1196 | clean: rm-dirs := $(CLEAN_DIRS) |
| 1197 | clean: rm-files := $(CLEAN_FILES) | 1197 | clean: rm-files := $(CLEAN_FILES) |
| 1198 | clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation) | 1198 | clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation) |
| 1199 | 1199 | ||
| 1200 | PHONY += $(clean-dirs) clean archclean | 1200 | PHONY += $(clean-dirs) clean archclean |
| 1201 | $(clean-dirs): | 1201 | $(clean-dirs): |
| 1202 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1202 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
| 1203 | 1203 | ||
| 1204 | clean: archclean $(clean-dirs) | 1204 | clean: archclean $(clean-dirs) |
| 1205 | $(call cmd,rmdirs) | 1205 | $(call cmd,rmdirs) |
| 1206 | $(call cmd,rmfiles) | 1206 | $(call cmd,rmfiles) |
| 1207 | @find . $(RCS_FIND_IGNORE) \ | 1207 | @find . $(RCS_FIND_IGNORE) \ |
| 1208 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1208 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
| 1209 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ | 1209 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
| 1210 | -o -name '*.symtypes' -o -name 'modules.order' \ | 1210 | -o -name '*.symtypes' -o -name 'modules.order' \ |
| 1211 | -o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \ | 1211 | -o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \ |
| 1212 | -type f -print | xargs rm -f | 1212 | -type f -print | xargs rm -f |
| 1213 | 1213 | ||
| 1214 | # mrproper - Delete all generated files, including .config | 1214 | # mrproper - Delete all generated files, including .config |
| 1215 | # | 1215 | # |
| 1216 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) | 1216 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) |
| 1217 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) | 1217 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) |
| 1218 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) | 1218 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) |
| 1219 | 1219 | ||
| 1220 | PHONY += $(mrproper-dirs) mrproper archmrproper | 1220 | PHONY += $(mrproper-dirs) mrproper archmrproper |
| 1221 | $(mrproper-dirs): | 1221 | $(mrproper-dirs): |
| 1222 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) | 1222 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) |
| 1223 | 1223 | ||
| 1224 | mrproper: clean archmrproper $(mrproper-dirs) | 1224 | mrproper: clean archmrproper $(mrproper-dirs) |
| 1225 | $(call cmd,rmdirs) | 1225 | $(call cmd,rmdirs) |
| 1226 | $(call cmd,rmfiles) | 1226 | $(call cmd,rmfiles) |
| 1227 | 1227 | ||
| 1228 | # distclean | 1228 | # distclean |
| 1229 | # | 1229 | # |
| 1230 | PHONY += distclean | 1230 | PHONY += distclean |
| 1231 | 1231 | ||
| 1232 | distclean: mrproper | 1232 | distclean: mrproper |
| 1233 | @find $(srctree) $(RCS_FIND_IGNORE) \ | 1233 | @find $(srctree) $(RCS_FIND_IGNORE) \ |
| 1234 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ | 1234 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
| 1235 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ | 1235 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
| 1236 | -o -name '.*.rej' -o -size 0 \ | 1236 | -o -name '.*.rej' -o -size 0 \ |
| 1237 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ | 1237 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ |
| 1238 | -type f -print | xargs rm -f | 1238 | -type f -print | xargs rm -f |
| 1239 | 1239 | ||
| 1240 | 1240 | ||
| 1241 | # Packaging of the kernel to various formats | 1241 | # Packaging of the kernel to various formats |
| 1242 | # --------------------------------------------------------------------------- | 1242 | # --------------------------------------------------------------------------- |
| 1243 | # rpm target kept for backward compatibility | 1243 | # rpm target kept for backward compatibility |
| 1244 | package-dir := $(srctree)/scripts/package | 1244 | package-dir := $(srctree)/scripts/package |
| 1245 | 1245 | ||
| 1246 | %pkg: include/config/kernel.release FORCE | 1246 | %pkg: include/config/kernel.release FORCE |
| 1247 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1247 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
| 1248 | rpm: include/config/kernel.release FORCE | 1248 | rpm: include/config/kernel.release FORCE |
| 1249 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1249 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
| 1250 | 1250 | ||
| 1251 | 1251 | ||
| 1252 | # Brief documentation of the typical targets used | 1252 | # Brief documentation of the typical targets used |
| 1253 | # --------------------------------------------------------------------------- | 1253 | # --------------------------------------------------------------------------- |
| 1254 | 1254 | ||
| 1255 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) | 1255 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
| 1256 | boards := $(notdir $(boards)) | 1256 | boards := $(notdir $(boards)) |
| 1257 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) | 1257 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) |
| 1258 | board-dirs := $(sort $(notdir $(board-dirs:/=))) | 1258 | board-dirs := $(sort $(notdir $(board-dirs:/=))) |
| 1259 | 1259 | ||
| 1260 | help: | 1260 | help: |
| 1261 | @echo 'Cleaning targets:' | 1261 | @echo 'Cleaning targets:' |
| 1262 | @echo ' clean - Remove most generated files but keep the config and' | 1262 | @echo ' clean - Remove most generated files but keep the config and' |
| 1263 | @echo ' enough build support to build external modules' | 1263 | @echo ' enough build support to build external modules' |
| 1264 | @echo ' mrproper - Remove all generated files + config + various backup files' | 1264 | @echo ' mrproper - Remove all generated files + config + various backup files' |
| 1265 | @echo ' distclean - mrproper + remove editor backup and patch files' | 1265 | @echo ' distclean - mrproper + remove editor backup and patch files' |
| 1266 | @echo '' | 1266 | @echo '' |
| 1267 | @echo 'Configuration targets:' | 1267 | @echo 'Configuration targets:' |
| 1268 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help | 1268 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help |
| 1269 | @echo '' | 1269 | @echo '' |
| 1270 | @echo 'Other generic targets:' | 1270 | @echo 'Other generic targets:' |
| 1271 | @echo ' all - Build all targets marked with [*]' | 1271 | @echo ' all - Build all targets marked with [*]' |
| 1272 | @echo '* vmlinux - Build the bare kernel' | 1272 | @echo '* vmlinux - Build the bare kernel' |
| 1273 | @echo '* modules - Build all modules' | 1273 | @echo '* modules - Build all modules' |
| 1274 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' | 1274 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
| 1275 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' | 1275 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' |
| 1276 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' | 1276 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
| 1277 | @echo ' dir/ - Build all files in dir and below' | 1277 | @echo ' dir/ - Build all files in dir and below' |
| 1278 | @echo ' dir/file.[ois] - Build specified target only' | 1278 | @echo ' dir/file.[ois] - Build specified target only' |
| 1279 | @echo ' dir/file.ko - Build module including final link' | 1279 | @echo ' dir/file.ko - Build module including final link' |
| 1280 | @echo ' prepare - Set up for building external modules' | 1280 | @echo ' prepare - Set up for building external modules' |
| 1281 | @echo ' tags/TAGS - Generate tags file for editors' | 1281 | @echo ' tags/TAGS - Generate tags file for editors' |
| 1282 | @echo ' cscope - Generate cscope index' | 1282 | @echo ' cscope - Generate cscope index' |
| 1283 | @echo ' kernelrelease - Output the release version string' | 1283 | @echo ' kernelrelease - Output the release version string' |
| 1284 | @echo ' kernelversion - Output the version stored in Makefile' | 1284 | @echo ' kernelversion - Output the version stored in Makefile' |
| 1285 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ | 1285 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
| 1286 | echo ' (default: $(INSTALL_HDR_PATH))'; \ | 1286 | echo ' (default: $(INSTALL_HDR_PATH))'; \ |
| 1287 | echo '' | 1287 | echo '' |
| 1288 | @echo 'Static analysers' | 1288 | @echo 'Static analysers' |
| 1289 | @echo ' checkstack - Generate a list of stack hogs' | 1289 | @echo ' checkstack - Generate a list of stack hogs' |
| 1290 | @echo ' namespacecheck - Name space analysis on compiled kernel' | 1290 | @echo ' namespacecheck - Name space analysis on compiled kernel' |
| 1291 | @echo ' versioncheck - Sanity check on version.h usage' | 1291 | @echo ' versioncheck - Sanity check on version.h usage' |
| 1292 | @echo ' includecheck - Check for duplicate included header files' | 1292 | @echo ' includecheck - Check for duplicate included header files' |
| 1293 | @echo ' export_report - List the usages of all exported symbols' | 1293 | @echo ' export_report - List the usages of all exported symbols' |
| 1294 | @echo ' headers_check - Sanity check on exported headers' | 1294 | @echo ' headers_check - Sanity check on exported headers' |
| 1295 | @echo ' headerdep - Detect inclusion cycles in headers'; \ | 1295 | @echo ' headerdep - Detect inclusion cycles in headers'; \ |
| 1296 | echo '' | 1296 | echo '' |
| 1297 | @echo 'Kernel packaging:' | 1297 | @echo 'Kernel packaging:' |
| 1298 | @$(MAKE) $(build)=$(package-dir) help | 1298 | @$(MAKE) $(build)=$(package-dir) help |
| 1299 | @echo '' | 1299 | @echo '' |
| 1300 | @echo 'Documentation targets:' | 1300 | @echo 'Documentation targets:' |
| 1301 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp | 1301 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp |
| 1302 | @echo '' | 1302 | @echo '' |
| 1303 | @echo 'Architecture specific targets ($(SRCARCH)):' | 1303 | @echo 'Architecture specific targets ($(SRCARCH)):' |
| 1304 | @$(if $(archhelp),$(archhelp),\ | 1304 | @$(if $(archhelp),$(archhelp),\ |
| 1305 | echo ' No architecture specific help defined for $(SRCARCH)') | 1305 | echo ' No architecture specific help defined for $(SRCARCH)') |
| 1306 | @echo '' | 1306 | @echo '' |
| 1307 | @$(if $(boards), \ | 1307 | @$(if $(boards), \ |
| 1308 | $(foreach b, $(boards), \ | 1308 | $(foreach b, $(boards), \ |
| 1309 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ | 1309 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ |
| 1310 | echo '') | 1310 | echo '') |
| 1311 | @$(if $(board-dirs), \ | 1311 | @$(if $(board-dirs), \ |
| 1312 | $(foreach b, $(board-dirs), \ | 1312 | $(foreach b, $(board-dirs), \ |
| 1313 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ | 1313 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ |
| 1314 | printf " %-16s - Show all of the above\\n" help-boards; \ | 1314 | printf " %-16s - Show all of the above\\n" help-boards; \ |
| 1315 | echo '') | 1315 | echo '') |
| 1316 | 1316 | ||
| 1317 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' | 1317 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
| 1318 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' | 1318 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
| 1319 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' | 1319 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
| 1320 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' | 1320 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' |
| 1321 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' | 1321 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
| 1322 | @echo '' | 1322 | @echo '' |
| 1323 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' | 1323 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' |
| 1324 | @echo 'For further info see the ./README file' | 1324 | @echo 'For further info see the ./README file' |
| 1325 | 1325 | ||
| 1326 | 1326 | ||
| 1327 | help-board-dirs := $(addprefix help-,$(board-dirs)) | 1327 | help-board-dirs := $(addprefix help-,$(board-dirs)) |
| 1328 | 1328 | ||
| 1329 | help-boards: $(help-board-dirs) | 1329 | help-boards: $(help-board-dirs) |
| 1330 | 1330 | ||
| 1331 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) | 1331 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) |
| 1332 | 1332 | ||
| 1333 | $(help-board-dirs): help-%: | 1333 | $(help-board-dirs): help-%: |
| 1334 | @echo 'Architecture specific targets ($(SRCARCH) $*):' | 1334 | @echo 'Architecture specific targets ($(SRCARCH) $*):' |
| 1335 | @$(if $(boards-per-dir), \ | 1335 | @$(if $(boards-per-dir), \ |
| 1336 | $(foreach b, $(boards-per-dir), \ | 1336 | $(foreach b, $(boards-per-dir), \ |
| 1337 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ | 1337 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ |
| 1338 | echo '') | 1338 | echo '') |
| 1339 | 1339 | ||
| 1340 | 1340 | ||
| 1341 | # Documentation targets | 1341 | # Documentation targets |
| 1342 | # --------------------------------------------------------------------------- | 1342 | # --------------------------------------------------------------------------- |
| 1343 | %docs: scripts_basic FORCE | 1343 | %docs: scripts_basic FORCE |
| 1344 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ | 1344 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ |
| 1345 | 1345 | ||
| 1346 | else # KBUILD_EXTMOD | 1346 | else # KBUILD_EXTMOD |
| 1347 | 1347 | ||
| 1348 | ### | 1348 | ### |
| 1349 | # External module support. | 1349 | # External module support. |
| 1350 | # When building external modules the kernel used as basis is considered | 1350 | # When building external modules the kernel used as basis is considered |
| 1351 | # read-only, and no consistency checks are made and the make | 1351 | # read-only, and no consistency checks are made and the make |
| 1352 | # system is not used on the basis kernel. If updates are required | 1352 | # system is not used on the basis kernel. If updates are required |
| 1353 | # in the basis kernel ordinary make commands (without M=...) must | 1353 | # in the basis kernel ordinary make commands (without M=...) must |
| 1354 | # be used. | 1354 | # be used. |
| 1355 | # | 1355 | # |
| 1356 | # The following are the only valid targets when building external | 1356 | # The following are the only valid targets when building external |
| 1357 | # modules. | 1357 | # modules. |
| 1358 | # make M=dir clean Delete all automatically generated files | 1358 | # make M=dir clean Delete all automatically generated files |
| 1359 | # make M=dir modules Make all modules in specified dir | 1359 | # make M=dir modules Make all modules in specified dir |
| 1360 | # make M=dir Same as 'make M=dir modules' | 1360 | # make M=dir Same as 'make M=dir modules' |
| 1361 | # make M=dir modules_install | 1361 | # make M=dir modules_install |
| 1362 | # Install the modules built in the module directory | 1362 | # Install the modules built in the module directory |
| 1363 | # Assumes install directory is already created | 1363 | # Assumes install directory is already created |
| 1364 | 1364 | ||
| 1365 | # We are always building modules | 1365 | # We are always building modules |
| 1366 | KBUILD_MODULES := 1 | 1366 | KBUILD_MODULES := 1 |
| 1367 | PHONY += crmodverdir | 1367 | PHONY += crmodverdir |
| 1368 | crmodverdir: | 1368 | crmodverdir: |
| 1369 | $(cmd_crmodverdir) | 1369 | $(cmd_crmodverdir) |
| 1370 | 1370 | ||
| 1371 | PHONY += $(objtree)/Module.symvers | 1371 | PHONY += $(objtree)/Module.symvers |
| 1372 | $(objtree)/Module.symvers: | 1372 | $(objtree)/Module.symvers: |
| 1373 | @test -e $(objtree)/Module.symvers || ( \ | 1373 | @test -e $(objtree)/Module.symvers || ( \ |
| 1374 | echo; \ | 1374 | echo; \ |
| 1375 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ | 1375 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ |
| 1376 | echo " is missing; modules will have no dependencies and modversions."; \ | 1376 | echo " is missing; modules will have no dependencies and modversions."; \ |
| 1377 | echo ) | 1377 | echo ) |
| 1378 | 1378 | ||
| 1379 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) | 1379 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) |
| 1380 | PHONY += $(module-dirs) modules | 1380 | PHONY += $(module-dirs) modules |
| 1381 | $(module-dirs): crmodverdir $(objtree)/Module.symvers | 1381 | $(module-dirs): crmodverdir $(objtree)/Module.symvers |
| 1382 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) | 1382 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) |
| 1383 | 1383 | ||
| 1384 | modules: $(module-dirs) | 1384 | modules: $(module-dirs) |
| 1385 | @$(kecho) ' Building modules, stage 2.'; | 1385 | @$(kecho) ' Building modules, stage 2.'; |
| 1386 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1386 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1387 | 1387 | ||
| 1388 | PHONY += modules_install | 1388 | PHONY += modules_install |
| 1389 | modules_install: _emodinst_ _emodinst_post | 1389 | modules_install: _emodinst_ _emodinst_post |
| 1390 | 1390 | ||
| 1391 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) | 1391 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) |
| 1392 | PHONY += _emodinst_ | 1392 | PHONY += _emodinst_ |
| 1393 | _emodinst_: | 1393 | _emodinst_: |
| 1394 | $(Q)mkdir -p $(MODLIB)/$(install-dir) | 1394 | $(Q)mkdir -p $(MODLIB)/$(install-dir) |
| 1395 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1395 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
| 1396 | 1396 | ||
| 1397 | PHONY += _emodinst_post | 1397 | PHONY += _emodinst_post |
| 1398 | _emodinst_post: _emodinst_ | 1398 | _emodinst_post: _emodinst_ |
| 1399 | $(call cmd,depmod) | 1399 | $(call cmd,depmod) |
| 1400 | 1400 | ||
| 1401 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) | 1401 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
| 1402 | 1402 | ||
| 1403 | PHONY += $(clean-dirs) clean | 1403 | PHONY += $(clean-dirs) clean |
| 1404 | $(clean-dirs): | 1404 | $(clean-dirs): |
| 1405 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1405 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
| 1406 | 1406 | ||
| 1407 | clean: rm-dirs := $(MODVERDIR) | 1407 | clean: rm-dirs := $(MODVERDIR) |
| 1408 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers | 1408 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers |
| 1409 | clean: $(clean-dirs) | 1409 | clean: $(clean-dirs) |
| 1410 | $(call cmd,rmdirs) | 1410 | $(call cmd,rmdirs) |
| 1411 | $(call cmd,rmfiles) | 1411 | $(call cmd,rmfiles) |
| 1412 | @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ | 1412 | @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ |
| 1413 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1413 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
| 1414 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ | 1414 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ |
| 1415 | -type f -print | xargs rm -f | 1415 | -type f -print | xargs rm -f |
| 1416 | 1416 | ||
| 1417 | help: | 1417 | help: |
| 1418 | @echo ' Building external modules.' | 1418 | @echo ' Building external modules.' |
| 1419 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' | 1419 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' |
| 1420 | @echo '' | 1420 | @echo '' |
| 1421 | @echo ' modules - default target, build the module(s)' | 1421 | @echo ' modules - default target, build the module(s)' |
| 1422 | @echo ' modules_install - install the module' | 1422 | @echo ' modules_install - install the module' |
| 1423 | @echo ' clean - remove generated files in module directory only' | 1423 | @echo ' clean - remove generated files in module directory only' |
| 1424 | @echo '' | 1424 | @echo '' |
| 1425 | 1425 | ||
| 1426 | # Dummies... | 1426 | # Dummies... |
| 1427 | PHONY += prepare scripts | 1427 | PHONY += prepare scripts |
| 1428 | prepare: ; | 1428 | prepare: ; |
| 1429 | scripts: ; | 1429 | scripts: ; |
| 1430 | endif # KBUILD_EXTMOD | 1430 | endif # KBUILD_EXTMOD |
| 1431 | 1431 | ||
| 1432 | # Generate tags for editors | 1432 | # Generate tags for editors |
| 1433 | # --------------------------------------------------------------------------- | 1433 | # --------------------------------------------------------------------------- |
| 1434 | quiet_cmd_tags = GEN $@ | 1434 | quiet_cmd_tags = GEN $@ |
| 1435 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ | 1435 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ |
| 1436 | 1436 | ||
| 1437 | tags TAGS cscope: FORCE | 1437 | tags TAGS cscope: FORCE |
| 1438 | $(call cmd,tags) | 1438 | $(call cmd,tags) |
| 1439 | 1439 | ||
| 1440 | # Scripts to check various things for consistency | 1440 | # Scripts to check various things for consistency |
| 1441 | # --------------------------------------------------------------------------- | 1441 | # --------------------------------------------------------------------------- |
| 1442 | 1442 | ||
| 1443 | includecheck: | 1443 | includecheck: |
| 1444 | find * $(RCS_FIND_IGNORE) \ | 1444 | find * $(RCS_FIND_IGNORE) \ |
| 1445 | -name '*.[hcS]' -type f -print | sort \ | 1445 | -name '*.[hcS]' -type f -print | sort \ |
| 1446 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl | 1446 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
| 1447 | 1447 | ||
| 1448 | versioncheck: | 1448 | versioncheck: |
| 1449 | find * $(RCS_FIND_IGNORE) \ | 1449 | find * $(RCS_FIND_IGNORE) \ |
| 1450 | -name '*.[hcS]' -type f -print | sort \ | 1450 | -name '*.[hcS]' -type f -print | sort \ |
| 1451 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl | 1451 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
| 1452 | 1452 | ||
| 1453 | namespacecheck: | 1453 | namespacecheck: |
| 1454 | $(PERL) $(srctree)/scripts/namespace.pl | 1454 | $(PERL) $(srctree)/scripts/namespace.pl |
| 1455 | 1455 | ||
| 1456 | export_report: | 1456 | export_report: |
| 1457 | $(PERL) $(srctree)/scripts/export_report.pl | 1457 | $(PERL) $(srctree)/scripts/export_report.pl |
| 1458 | 1458 | ||
| 1459 | endif #ifeq ($(config-targets),1) | 1459 | endif #ifeq ($(config-targets),1) |
| 1460 | endif #ifeq ($(mixed-targets),1) | 1460 | endif #ifeq ($(mixed-targets),1) |
| 1461 | 1461 | ||
| 1462 | PHONY += checkstack kernelrelease kernelversion | 1462 | PHONY += checkstack kernelrelease kernelversion |
| 1463 | 1463 | ||
| 1464 | # UML needs a little special treatment here. It wants to use the host | 1464 | # UML needs a little special treatment here. It wants to use the host |
| 1465 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone | 1465 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone |
| 1466 | # else wants $(ARCH), including people doing cross-builds, which means | 1466 | # else wants $(ARCH), including people doing cross-builds, which means |
| 1467 | # that $(SUBARCH) doesn't work here. | 1467 | # that $(SUBARCH) doesn't work here. |
| 1468 | ifeq ($(ARCH), um) | 1468 | ifeq ($(ARCH), um) |
| 1469 | CHECKSTACK_ARCH := $(SUBARCH) | 1469 | CHECKSTACK_ARCH := $(SUBARCH) |
| 1470 | else | 1470 | else |
| 1471 | CHECKSTACK_ARCH := $(ARCH) | 1471 | CHECKSTACK_ARCH := $(ARCH) |
| 1472 | endif | 1472 | endif |
| 1473 | checkstack: | 1473 | checkstack: |
| 1474 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ | 1474 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
| 1475 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) | 1475 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
| 1476 | 1476 | ||
| 1477 | kernelrelease: | 1477 | kernelrelease: |
| 1478 | $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ | 1478 | $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ |
| 1479 | $(error kernelrelease not valid - run 'make prepare' to update it)) | 1479 | $(error kernelrelease not valid - run 'make prepare' to update it)) |
| 1480 | kernelversion: | 1480 | kernelversion: |
| 1481 | @echo $(KERNELVERSION) | 1481 | @echo $(KERNELVERSION) |
| 1482 | 1482 | ||
| 1483 | # Single targets | 1483 | # Single targets |
| 1484 | # --------------------------------------------------------------------------- | 1484 | # --------------------------------------------------------------------------- |
| 1485 | # Single targets are compatible with: | 1485 | # Single targets are compatible with: |
| 1486 | # - build with mixed source and output | 1486 | # - build with mixed source and output |
| 1487 | # - build with separate output dir 'make O=...' | 1487 | # - build with separate output dir 'make O=...' |
| 1488 | # - external modules | 1488 | # - external modules |
| 1489 | # | 1489 | # |
| 1490 | # target-dir => where to store outputfile | 1490 | # target-dir => where to store outputfile |
| 1491 | # build-dir => directory in kernel source tree to use | 1491 | # build-dir => directory in kernel source tree to use |
| 1492 | 1492 | ||
| 1493 | ifeq ($(KBUILD_EXTMOD),) | 1493 | ifeq ($(KBUILD_EXTMOD),) |
| 1494 | build-dir = $(patsubst %/,%,$(dir $@)) | 1494 | build-dir = $(patsubst %/,%,$(dir $@)) |
| 1495 | target-dir = $(dir $@) | 1495 | target-dir = $(dir $@) |
| 1496 | else | 1496 | else |
| 1497 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) | 1497 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) |
| 1498 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) | 1498 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) |
| 1499 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) | 1499 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) |
| 1500 | endif | 1500 | endif |
| 1501 | 1501 | ||
| 1502 | %.s: %.c prepare scripts FORCE | 1502 | %.s: %.c prepare scripts FORCE |
| 1503 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1503 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1504 | %.i: %.c prepare scripts FORCE | 1504 | %.i: %.c prepare scripts FORCE |
| 1505 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1505 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1506 | %.o: %.c prepare scripts FORCE | 1506 | %.o: %.c prepare scripts FORCE |
| 1507 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1507 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1508 | %.lst: %.c prepare scripts FORCE | 1508 | %.lst: %.c prepare scripts FORCE |
| 1509 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1509 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1510 | %.s: %.S prepare scripts FORCE | 1510 | %.s: %.S prepare scripts FORCE |
| 1511 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1511 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1512 | %.o: %.S prepare scripts FORCE | 1512 | %.o: %.S prepare scripts FORCE |
| 1513 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1513 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1514 | %.symtypes: %.c prepare scripts FORCE | 1514 | %.symtypes: %.c prepare scripts FORCE |
| 1515 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1515 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1516 | 1516 | ||
| 1517 | # Modules | 1517 | # Modules |
| 1518 | /: prepare scripts FORCE | 1518 | /: prepare scripts FORCE |
| 1519 | $(cmd_crmodverdir) | 1519 | $(cmd_crmodverdir) |
| 1520 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1520 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1521 | $(build)=$(build-dir) | 1521 | $(build)=$(build-dir) |
| 1522 | %/: prepare scripts FORCE | 1522 | %/: prepare scripts FORCE |
| 1523 | $(cmd_crmodverdir) | 1523 | $(cmd_crmodverdir) |
| 1524 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1524 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1525 | $(build)=$(build-dir) | 1525 | $(build)=$(build-dir) |
| 1526 | %.ko: prepare scripts FORCE | 1526 | %.ko: prepare scripts FORCE |
| 1527 | $(cmd_crmodverdir) | 1527 | $(cmd_crmodverdir) |
| 1528 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1528 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1529 | $(build)=$(build-dir) $(@:.ko=.o) | 1529 | $(build)=$(build-dir) $(@:.ko=.o) |
| 1530 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1530 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1531 | 1531 | ||
| 1532 | # FIXME Should go into a make.lib or something | 1532 | # FIXME Should go into a make.lib or something |
| 1533 | # =========================================================================== | 1533 | # =========================================================================== |
| 1534 | 1534 | ||
| 1535 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) | 1535 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) |
| 1536 | cmd_rmdirs = rm -rf $(rm-dirs) | 1536 | cmd_rmdirs = rm -rf $(rm-dirs) |
| 1537 | 1537 | ||
| 1538 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) | 1538 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) |
| 1539 | cmd_rmfiles = rm -f $(rm-files) | 1539 | cmd_rmfiles = rm -f $(rm-files) |
| 1540 | 1540 | ||
| 1541 | # Run depmod only if we have System.map and depmod is executable | 1541 | # Run depmod only if we have System.map and depmod is executable |
| 1542 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) | 1542 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) |
| 1543 | cmd_depmod = \ | 1543 | cmd_depmod = \ |
| 1544 | if [ -r System.map -a -x $(DEPMOD) ]; then \ | 1544 | if [ -r System.map -a -x $(DEPMOD) ]; then \ |
| 1545 | $(DEPMOD) -ae -F System.map \ | 1545 | $(DEPMOD) -ae -F System.map \ |
| 1546 | $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) ) \ | 1546 | $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) ) \ |
| 1547 | $(KERNELRELEASE); \ | 1547 | $(KERNELRELEASE); \ |
| 1548 | fi | 1548 | fi |
| 1549 | 1549 | ||
| 1550 | # Create temporary dir for module support files | 1550 | # Create temporary dir for module support files |
| 1551 | # clean it up only when building all modules | 1551 | # clean it up only when building all modules |
| 1552 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ | 1552 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ |
| 1553 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) | 1553 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
| 1554 | 1554 | ||
| 1555 | a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ | 1555 | a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ |
| 1556 | $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ | 1556 | $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ |
| 1557 | $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) | 1557 | $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) |
| 1558 | 1558 | ||
| 1559 | quiet_cmd_as_o_S = AS $@ | 1559 | quiet_cmd_as_o_S = AS $@ |
| 1560 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< | 1560 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< |
| 1561 | 1561 | ||
| 1562 | # read all saved command lines | 1562 | # read all saved command lines |
| 1563 | 1563 | ||
| 1564 | targets := $(wildcard $(sort $(targets))) | 1564 | targets := $(wildcard $(sort $(targets))) |
| 1565 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | 1565 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) |
| 1566 | 1566 | ||
| 1567 | ifneq ($(cmd_files),) | 1567 | ifneq ($(cmd_files),) |
| 1568 | $(cmd_files): ; # Do not try to update included dependency files | 1568 | $(cmd_files): ; # Do not try to update included dependency files |
| 1569 | include $(cmd_files) | 1569 | include $(cmd_files) |
| 1570 | endif | 1570 | endif |
| 1571 | 1571 | ||
| 1572 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir | 1572 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir |
| 1573 | # Usage: | 1573 | # Usage: |
| 1574 | # $(Q)$(MAKE) $(clean)=dir | 1574 | # $(Q)$(MAKE) $(clean)=dir |
| 1575 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj | 1575 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj |
| 1576 | 1576 | ||
| 1577 | endif # skip-makefile | 1577 | endif # skip-makefile |
| 1578 | 1578 | ||
| 1579 | PHONY += FORCE | 1579 | PHONY += FORCE |
| 1580 | FORCE: | 1580 | FORCE: |
| 1581 | 1581 | ||
| 1582 | # Declare the contents of the .PHONY variable as phony. We keep that | 1582 | # Declare the contents of the .PHONY variable as phony. We keep that |
| 1583 | # information in a variable se we can use it in if_changed and friends. | 1583 | # information in a variable se we can use it in if_changed and friends. |
| 1584 | .PHONY: $(PHONY) | 1584 | .PHONY: $(PHONY) |
| 1585 | 1585 |