Commit 9663d9890d80408c4a5c8280c5db775fbe082203
Committed by
Michal Marek
Michal Marek
1 parent
279f3dd356
Exists in
master
and in
39 other branches
kbuild: make headerdep work in KBUILD_OUTDIR
This patch fixes the headerdep target so it works when make is invoked in KBUILD_OUTDIR. Signed-off-by: Peter Foley <pefoley2@verizon.net> Signed-off-by: Michal Marek <mmarek@suse.cz>
Showing 1 changed file with 2 additions and 1 deletions Inline Diff
Makefile
| 1 | VERSION = 2 | 1 | VERSION = 2 |
| 2 | PATCHLEVEL = 6 | 2 | PATCHLEVEL = 6 |
| 3 | SUBLEVEL = 39 | 3 | SUBLEVEL = 39 |
| 4 | EXTRAVERSION = -rc1 | 4 | EXTRAVERSION = -rc1 |
| 5 | NAME = Flesh-Eating Bats with Fangs | 5 | NAME = Flesh-Eating Bats with Fangs |
| 6 | 6 | ||
| 7 | # *DOCUMENTATION* | 7 | # *DOCUMENTATION* |
| 8 | # To see a list of typical targets execute "make help" | 8 | # To see a list of typical targets execute "make help" |
| 9 | # More info can be located in ./README | 9 | # More info can be located in ./README |
| 10 | # Comments in this file are targeted only to the developer, do not | 10 | # Comments in this file are targeted only to the developer, do not |
| 11 | # expect to learn how to build the kernel reading this file. | 11 | # expect to learn how to build the kernel reading this file. |
| 12 | 12 | ||
| 13 | # Do not: | 13 | # Do not: |
| 14 | # o use make's built-in rules and variables | 14 | # o use make's built-in rules and variables |
| 15 | # (this increases performance and avoids hard-to-debug behaviour); | 15 | # (this increases performance and avoids hard-to-debug behaviour); |
| 16 | # o print "Entering directory ..."; | 16 | # o print "Entering directory ..."; |
| 17 | MAKEFLAGS += -rR --no-print-directory | 17 | MAKEFLAGS += -rR --no-print-directory |
| 18 | 18 | ||
| 19 | # Avoid funny character set dependencies | 19 | # Avoid funny character set dependencies |
| 20 | unexport LC_ALL | 20 | unexport LC_ALL |
| 21 | LC_COLLATE=C | 21 | LC_COLLATE=C |
| 22 | LC_NUMERIC=C | 22 | LC_NUMERIC=C |
| 23 | export LC_COLLATE LC_NUMERIC | 23 | export LC_COLLATE LC_NUMERIC |
| 24 | 24 | ||
| 25 | # We are using a recursive build, so we need to do a little thinking | 25 | # We are using a recursive build, so we need to do a little thinking |
| 26 | # to get the ordering right. | 26 | # to get the ordering right. |
| 27 | # | 27 | # |
| 28 | # Most importantly: sub-Makefiles should only ever modify files in | 28 | # Most importantly: sub-Makefiles should only ever modify files in |
| 29 | # their own directory. If in some directory we have a dependency on | 29 | # their own directory. If in some directory we have a dependency on |
| 30 | # a file in another dir (which doesn't happen often, but it's often | 30 | # a file in another dir (which doesn't happen often, but it's often |
| 31 | # unavoidable when linking the built-in.o targets which finally | 31 | # unavoidable when linking the built-in.o targets which finally |
| 32 | # turn into vmlinux), we will call a sub make in that other dir, and | 32 | # turn into vmlinux), we will call a sub make in that other dir, and |
| 33 | # after that we are sure that everything which is in that other dir | 33 | # after that we are sure that everything which is in that other dir |
| 34 | # is now up to date. | 34 | # is now up to date. |
| 35 | # | 35 | # |
| 36 | # The only cases where we need to modify files which have global | 36 | # The only cases where we need to modify files which have global |
| 37 | # effects are thus separated out and done before the recursive | 37 | # effects are thus separated out and done before the recursive |
| 38 | # descending is started. They are now explicitly listed as the | 38 | # descending is started. They are now explicitly listed as the |
| 39 | # prepare rule. | 39 | # prepare rule. |
| 40 | 40 | ||
| 41 | # To put more focus on warnings, be less verbose as default | 41 | # To put more focus on warnings, be less verbose as default |
| 42 | # Use 'make V=1' to see the full commands | 42 | # Use 'make V=1' to see the full commands |
| 43 | 43 | ||
| 44 | ifeq ("$(origin V)", "command line") | 44 | ifeq ("$(origin V)", "command line") |
| 45 | KBUILD_VERBOSE = $(V) | 45 | KBUILD_VERBOSE = $(V) |
| 46 | endif | 46 | endif |
| 47 | ifndef KBUILD_VERBOSE | 47 | ifndef KBUILD_VERBOSE |
| 48 | KBUILD_VERBOSE = 0 | 48 | KBUILD_VERBOSE = 0 |
| 49 | endif | 49 | endif |
| 50 | 50 | ||
| 51 | # Call a source code checker (by default, "sparse") as part of the | 51 | # Call a source code checker (by default, "sparse") as part of the |
| 52 | # C compilation. | 52 | # C compilation. |
| 53 | # | 53 | # |
| 54 | # Use 'make C=1' to enable checking of only re-compiled files. | 54 | # Use 'make C=1' to enable checking of only re-compiled files. |
| 55 | # Use 'make C=2' to enable checking of *all* source files, regardless | 55 | # Use 'make C=2' to enable checking of *all* source files, regardless |
| 56 | # of whether they are re-compiled or not. | 56 | # of whether they are re-compiled or not. |
| 57 | # | 57 | # |
| 58 | # See the file "Documentation/sparse.txt" for more details, including | 58 | # See the file "Documentation/sparse.txt" for more details, including |
| 59 | # where to get the "sparse" utility. | 59 | # where to get the "sparse" utility. |
| 60 | 60 | ||
| 61 | ifeq ("$(origin C)", "command line") | 61 | ifeq ("$(origin C)", "command line") |
| 62 | KBUILD_CHECKSRC = $(C) | 62 | KBUILD_CHECKSRC = $(C) |
| 63 | endif | 63 | endif |
| 64 | ifndef KBUILD_CHECKSRC | 64 | ifndef KBUILD_CHECKSRC |
| 65 | KBUILD_CHECKSRC = 0 | 65 | KBUILD_CHECKSRC = 0 |
| 66 | endif | 66 | endif |
| 67 | 67 | ||
| 68 | # Use make M=dir to specify directory of external module to build | 68 | # Use make M=dir to specify directory of external module to build |
| 69 | # Old syntax make ... SUBDIRS=$PWD is still supported | 69 | # Old syntax make ... SUBDIRS=$PWD is still supported |
| 70 | # Setting the environment variable KBUILD_EXTMOD take precedence | 70 | # Setting the environment variable KBUILD_EXTMOD take precedence |
| 71 | ifdef SUBDIRS | 71 | ifdef SUBDIRS |
| 72 | KBUILD_EXTMOD ?= $(SUBDIRS) | 72 | KBUILD_EXTMOD ?= $(SUBDIRS) |
| 73 | endif | 73 | endif |
| 74 | 74 | ||
| 75 | ifeq ("$(origin M)", "command line") | 75 | ifeq ("$(origin M)", "command line") |
| 76 | KBUILD_EXTMOD := $(M) | 76 | KBUILD_EXTMOD := $(M) |
| 77 | endif | 77 | endif |
| 78 | 78 | ||
| 79 | # kbuild supports saving output files in a separate directory. | 79 | # kbuild supports saving output files in a separate directory. |
| 80 | # To locate output files in a separate directory two syntaxes are supported. | 80 | # To locate output files in a separate directory two syntaxes are supported. |
| 81 | # In both cases the working directory must be the root of the kernel src. | 81 | # In both cases the working directory must be the root of the kernel src. |
| 82 | # 1) O= | 82 | # 1) O= |
| 83 | # Use "make O=dir/to/store/output/files/" | 83 | # Use "make O=dir/to/store/output/files/" |
| 84 | # | 84 | # |
| 85 | # 2) Set KBUILD_OUTPUT | 85 | # 2) Set KBUILD_OUTPUT |
| 86 | # Set the environment variable KBUILD_OUTPUT to point to the directory | 86 | # Set the environment variable KBUILD_OUTPUT to point to the directory |
| 87 | # where the output files shall be placed. | 87 | # where the output files shall be placed. |
| 88 | # export KBUILD_OUTPUT=dir/to/store/output/files/ | 88 | # export KBUILD_OUTPUT=dir/to/store/output/files/ |
| 89 | # make | 89 | # make |
| 90 | # | 90 | # |
| 91 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment | 91 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment |
| 92 | # variable. | 92 | # variable. |
| 93 | 93 | ||
| 94 | 94 | ||
| 95 | # KBUILD_SRC is set on invocation of make in OBJ directory | 95 | # KBUILD_SRC is set on invocation of make in OBJ directory |
| 96 | # KBUILD_SRC is not intended to be used by the regular user (for now) | 96 | # KBUILD_SRC is not intended to be used by the regular user (for now) |
| 97 | ifeq ($(KBUILD_SRC),) | 97 | ifeq ($(KBUILD_SRC),) |
| 98 | 98 | ||
| 99 | # OK, Make called in directory where kernel src resides | 99 | # OK, Make called in directory where kernel src resides |
| 100 | # Do we want to locate output files in a separate directory? | 100 | # Do we want to locate output files in a separate directory? |
| 101 | ifeq ("$(origin O)", "command line") | 101 | ifeq ("$(origin O)", "command line") |
| 102 | KBUILD_OUTPUT := $(O) | 102 | KBUILD_OUTPUT := $(O) |
| 103 | endif | 103 | endif |
| 104 | 104 | ||
| 105 | ifeq ("$(origin W)", "command line") | 105 | ifeq ("$(origin W)", "command line") |
| 106 | export KBUILD_ENABLE_EXTRA_GCC_CHECKS := 1 | 106 | export KBUILD_ENABLE_EXTRA_GCC_CHECKS := 1 |
| 107 | endif | 107 | endif |
| 108 | 108 | ||
| 109 | # That's our default target when none is given on the command line | 109 | # That's our default target when none is given on the command line |
| 110 | PHONY := _all | 110 | PHONY := _all |
| 111 | _all: | 111 | _all: |
| 112 | 112 | ||
| 113 | # Cancel implicit rules on top Makefile | 113 | # Cancel implicit rules on top Makefile |
| 114 | $(CURDIR)/Makefile Makefile: ; | 114 | $(CURDIR)/Makefile Makefile: ; |
| 115 | 115 | ||
| 116 | ifneq ($(KBUILD_OUTPUT),) | 116 | ifneq ($(KBUILD_OUTPUT),) |
| 117 | # Invoke a second make in the output directory, passing relevant variables | 117 | # Invoke a second make in the output directory, passing relevant variables |
| 118 | # check that the output directory actually exists | 118 | # check that the output directory actually exists |
| 119 | saved-output := $(KBUILD_OUTPUT) | 119 | saved-output := $(KBUILD_OUTPUT) |
| 120 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) | 120 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) |
| 121 | $(if $(KBUILD_OUTPUT),, \ | 121 | $(if $(KBUILD_OUTPUT),, \ |
| 122 | $(error output directory "$(saved-output)" does not exist)) | 122 | $(error output directory "$(saved-output)" does not exist)) |
| 123 | 123 | ||
| 124 | PHONY += $(MAKECMDGOALS) sub-make | 124 | PHONY += $(MAKECMDGOALS) sub-make |
| 125 | 125 | ||
| 126 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make | 126 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make |
| 127 | $(Q)@: | 127 | $(Q)@: |
| 128 | 128 | ||
| 129 | sub-make: FORCE | 129 | sub-make: FORCE |
| 130 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ | 130 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ |
| 131 | KBUILD_SRC=$(CURDIR) \ | 131 | KBUILD_SRC=$(CURDIR) \ |
| 132 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ | 132 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ |
| 133 | $(filter-out _all sub-make,$(MAKECMDGOALS)) | 133 | $(filter-out _all sub-make,$(MAKECMDGOALS)) |
| 134 | 134 | ||
| 135 | # Leave processing to above invocation of make | 135 | # Leave processing to above invocation of make |
| 136 | skip-makefile := 1 | 136 | skip-makefile := 1 |
| 137 | endif # ifneq ($(KBUILD_OUTPUT),) | 137 | endif # ifneq ($(KBUILD_OUTPUT),) |
| 138 | endif # ifeq ($(KBUILD_SRC),) | 138 | endif # ifeq ($(KBUILD_SRC),) |
| 139 | 139 | ||
| 140 | # We process the rest of the Makefile if this is the final invocation of make | 140 | # We process the rest of the Makefile if this is the final invocation of make |
| 141 | ifeq ($(skip-makefile),) | 141 | ifeq ($(skip-makefile),) |
| 142 | 142 | ||
| 143 | # If building an external module we do not care about the all: rule | 143 | # If building an external module we do not care about the all: rule |
| 144 | # but instead _all depend on modules | 144 | # but instead _all depend on modules |
| 145 | PHONY += all | 145 | PHONY += all |
| 146 | ifeq ($(KBUILD_EXTMOD),) | 146 | ifeq ($(KBUILD_EXTMOD),) |
| 147 | _all: all | 147 | _all: all |
| 148 | else | 148 | else |
| 149 | _all: modules | 149 | _all: modules |
| 150 | endif | 150 | endif |
| 151 | 151 | ||
| 152 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) | 152 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) |
| 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 | 159 | export srctree objtree VPATH |
| 160 | 160 | ||
| 161 | 161 | ||
| 162 | # SUBARCH tells the usermode build what the underlying arch is. That is set | 162 | # SUBARCH tells the usermode build what the underlying arch is. That is set |
| 163 | # first, and if a usermode build is happening, the "ARCH=um" on the command | 163 | # first, and if a usermode build is happening, the "ARCH=um" on the command |
| 164 | # line overrides the setting of ARCH below. If a native build is happening, | 164 | # line overrides the setting of ARCH below. If a native build is happening, |
| 165 | # then ARCH is assigned, getting whatever value it gets normally, and | 165 | # then ARCH is assigned, getting whatever value it gets normally, and |
| 166 | # SUBARCH is subsequently ignored. | 166 | # SUBARCH is subsequently ignored. |
| 167 | 167 | ||
| 168 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ | 168 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ |
| 169 | -e s/arm.*/arm/ -e s/sa110/arm/ \ | 169 | -e s/arm.*/arm/ -e s/sa110/arm/ \ |
| 170 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ | 170 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ |
| 171 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ | 171 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ |
| 172 | -e s/sh[234].*/sh/ ) | 172 | -e s/sh[234].*/sh/ ) |
| 173 | 173 | ||
| 174 | # Cross compiling and selecting different set of gcc/bin-utils | 174 | # Cross compiling and selecting different set of gcc/bin-utils |
| 175 | # --------------------------------------------------------------------------- | 175 | # --------------------------------------------------------------------------- |
| 176 | # | 176 | # |
| 177 | # When performing cross compilation for other architectures ARCH shall be set | 177 | # When performing cross compilation for other architectures ARCH shall be set |
| 178 | # to the target architecture. (See arch/* for the possibilities). | 178 | # to the target architecture. (See arch/* for the possibilities). |
| 179 | # ARCH can be set during invocation of make: | 179 | # ARCH can be set during invocation of make: |
| 180 | # make ARCH=ia64 | 180 | # make ARCH=ia64 |
| 181 | # Another way is to have ARCH set in the environment. | 181 | # Another way is to have ARCH set in the environment. |
| 182 | # The default ARCH is the host where make is executed. | 182 | # The default ARCH is the host where make is executed. |
| 183 | 183 | ||
| 184 | # CROSS_COMPILE specify the prefix used for all executables used | 184 | # CROSS_COMPILE specify the prefix used for all executables used |
| 185 | # during compilation. Only gcc and related bin-utils executables | 185 | # during compilation. Only gcc and related bin-utils executables |
| 186 | # are prefixed with $(CROSS_COMPILE). | 186 | # are prefixed with $(CROSS_COMPILE). |
| 187 | # CROSS_COMPILE can be set on the command line | 187 | # CROSS_COMPILE can be set on the command line |
| 188 | # make CROSS_COMPILE=ia64-linux- | 188 | # make CROSS_COMPILE=ia64-linux- |
| 189 | # Alternatively CROSS_COMPILE can be set in the environment. | 189 | # Alternatively CROSS_COMPILE can be set in the environment. |
| 190 | # A third alternative is to store a setting in .config so that plain | 190 | # A third alternative is to store a setting in .config so that plain |
| 191 | # "make" in the configured kernel build directory always uses that. | 191 | # "make" in the configured kernel build directory always uses that. |
| 192 | # Default value for CROSS_COMPILE is not to prefix executables | 192 | # Default value for CROSS_COMPILE is not to prefix executables |
| 193 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile | 193 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile |
| 194 | export KBUILD_BUILDHOST := $(SUBARCH) | 194 | export KBUILD_BUILDHOST := $(SUBARCH) |
| 195 | ARCH ?= $(SUBARCH) | 195 | ARCH ?= $(SUBARCH) |
| 196 | CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) | 196 | CROSS_COMPILE ?= $(CONFIG_CROSS_COMPILE:"%"=%) |
| 197 | 197 | ||
| 198 | # Architecture as present in compile.h | 198 | # Architecture as present in compile.h |
| 199 | UTS_MACHINE := $(ARCH) | 199 | UTS_MACHINE := $(ARCH) |
| 200 | SRCARCH := $(ARCH) | 200 | SRCARCH := $(ARCH) |
| 201 | 201 | ||
| 202 | # Additional ARCH settings for x86 | 202 | # Additional ARCH settings for x86 |
| 203 | ifeq ($(ARCH),i386) | 203 | ifeq ($(ARCH),i386) |
| 204 | SRCARCH := x86 | 204 | SRCARCH := x86 |
| 205 | endif | 205 | endif |
| 206 | ifeq ($(ARCH),x86_64) | 206 | ifeq ($(ARCH),x86_64) |
| 207 | SRCARCH := x86 | 207 | SRCARCH := x86 |
| 208 | endif | 208 | endif |
| 209 | 209 | ||
| 210 | # Additional ARCH settings for sparc | 210 | # Additional ARCH settings for sparc |
| 211 | ifeq ($(ARCH),sparc32) | 211 | ifeq ($(ARCH),sparc32) |
| 212 | SRCARCH := sparc | 212 | SRCARCH := sparc |
| 213 | endif | 213 | endif |
| 214 | ifeq ($(ARCH),sparc64) | 214 | ifeq ($(ARCH),sparc64) |
| 215 | SRCARCH := sparc | 215 | SRCARCH := sparc |
| 216 | endif | 216 | endif |
| 217 | 217 | ||
| 218 | # Additional ARCH settings for sh | 218 | # Additional ARCH settings for sh |
| 219 | ifeq ($(ARCH),sh64) | 219 | ifeq ($(ARCH),sh64) |
| 220 | SRCARCH := sh | 220 | SRCARCH := sh |
| 221 | endif | 221 | endif |
| 222 | 222 | ||
| 223 | # Where to locate arch specific headers | 223 | # Where to locate arch specific headers |
| 224 | hdr-arch := $(SRCARCH) | 224 | hdr-arch := $(SRCARCH) |
| 225 | 225 | ||
| 226 | ifeq ($(ARCH),m68knommu) | 226 | ifeq ($(ARCH),m68knommu) |
| 227 | hdr-arch := m68k | 227 | hdr-arch := m68k |
| 228 | endif | 228 | endif |
| 229 | 229 | ||
| 230 | KCONFIG_CONFIG ?= .config | 230 | KCONFIG_CONFIG ?= .config |
| 231 | export KCONFIG_CONFIG | 231 | export KCONFIG_CONFIG |
| 232 | 232 | ||
| 233 | # SHELL used by kbuild | 233 | # SHELL used by kbuild |
| 234 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ | 234 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ |
| 235 | else if [ -x /bin/bash ]; then echo /bin/bash; \ | 235 | else if [ -x /bin/bash ]; then echo /bin/bash; \ |
| 236 | else echo sh; fi ; fi) | 236 | else echo sh; fi ; fi) |
| 237 | 237 | ||
| 238 | HOSTCC = gcc | 238 | HOSTCC = gcc |
| 239 | HOSTCXX = g++ | 239 | HOSTCXX = g++ |
| 240 | HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer | 240 | HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer |
| 241 | HOSTCXXFLAGS = -O2 | 241 | HOSTCXXFLAGS = -O2 |
| 242 | 242 | ||
| 243 | # Decide whether to build built-in, modular, or both. | 243 | # Decide whether to build built-in, modular, or both. |
| 244 | # Normally, just do built-in. | 244 | # Normally, just do built-in. |
| 245 | 245 | ||
| 246 | KBUILD_MODULES := | 246 | KBUILD_MODULES := |
| 247 | KBUILD_BUILTIN := 1 | 247 | KBUILD_BUILTIN := 1 |
| 248 | 248 | ||
| 249 | # If we have only "make modules", don't compile built-in objects. | 249 | # If we have only "make modules", don't compile built-in objects. |
| 250 | # When we're building modules with modversions, we need to consider | 250 | # When we're building modules with modversions, we need to consider |
| 251 | # the built-in objects during the descend as well, in order to | 251 | # the built-in objects during the descend as well, in order to |
| 252 | # make sure the checksums are up to date before we record them. | 252 | # make sure the checksums are up to date before we record them. |
| 253 | 253 | ||
| 254 | ifeq ($(MAKECMDGOALS),modules) | 254 | ifeq ($(MAKECMDGOALS),modules) |
| 255 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) | 255 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) |
| 256 | endif | 256 | endif |
| 257 | 257 | ||
| 258 | # If we have "make <whatever> modules", compile modules | 258 | # If we have "make <whatever> modules", compile modules |
| 259 | # in addition to whatever we do anyway. | 259 | # in addition to whatever we do anyway. |
| 260 | # Just "make" or "make all" shall build modules as well | 260 | # Just "make" or "make all" shall build modules as well |
| 261 | 261 | ||
| 262 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) | 262 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) |
| 263 | KBUILD_MODULES := 1 | 263 | KBUILD_MODULES := 1 |
| 264 | endif | 264 | endif |
| 265 | 265 | ||
| 266 | ifeq ($(MAKECMDGOALS),) | 266 | ifeq ($(MAKECMDGOALS),) |
| 267 | KBUILD_MODULES := 1 | 267 | KBUILD_MODULES := 1 |
| 268 | endif | 268 | endif |
| 269 | 269 | ||
| 270 | export KBUILD_MODULES KBUILD_BUILTIN | 270 | export KBUILD_MODULES KBUILD_BUILTIN |
| 271 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD | 271 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD |
| 272 | 272 | ||
| 273 | # Beautify output | 273 | # Beautify output |
| 274 | # --------------------------------------------------------------------------- | 274 | # --------------------------------------------------------------------------- |
| 275 | # | 275 | # |
| 276 | # Normally, we echo the whole command before executing it. By making | 276 | # Normally, we echo the whole command before executing it. By making |
| 277 | # that echo $($(quiet)$(cmd)), we now have the possibility to set | 277 | # that echo $($(quiet)$(cmd)), we now have the possibility to set |
| 278 | # $(quiet) to choose other forms of output instead, e.g. | 278 | # $(quiet) to choose other forms of output instead, e.g. |
| 279 | # | 279 | # |
| 280 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ | 280 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ |
| 281 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< | 281 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< |
| 282 | # | 282 | # |
| 283 | # If $(quiet) is empty, the whole command will be printed. | 283 | # If $(quiet) is empty, the whole command will be printed. |
| 284 | # If it is set to "quiet_", only the short version will be printed. | 284 | # If it is set to "quiet_", only the short version will be printed. |
| 285 | # If it is set to "silent_", nothing will be printed at all, since | 285 | # If it is set to "silent_", nothing will be printed at all, since |
| 286 | # the variable $(silent_cmd_cc_o_c) doesn't exist. | 286 | # the variable $(silent_cmd_cc_o_c) doesn't exist. |
| 287 | # | 287 | # |
| 288 | # A simple variant is to prefix commands with $(Q) - that's useful | 288 | # A simple variant is to prefix commands with $(Q) - that's useful |
| 289 | # for commands that shall be hidden in non-verbose mode. | 289 | # for commands that shall be hidden in non-verbose mode. |
| 290 | # | 290 | # |
| 291 | # $(Q)ln $@ :< | 291 | # $(Q)ln $@ :< |
| 292 | # | 292 | # |
| 293 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. | 293 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. |
| 294 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. | 294 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. |
| 295 | 295 | ||
| 296 | ifeq ($(KBUILD_VERBOSE),1) | 296 | ifeq ($(KBUILD_VERBOSE),1) |
| 297 | quiet = | 297 | quiet = |
| 298 | Q = | 298 | Q = |
| 299 | else | 299 | else |
| 300 | quiet=quiet_ | 300 | quiet=quiet_ |
| 301 | Q = @ | 301 | Q = @ |
| 302 | endif | 302 | endif |
| 303 | 303 | ||
| 304 | # If the user is running make -s (silent mode), suppress echoing of | 304 | # If the user is running make -s (silent mode), suppress echoing of |
| 305 | # commands | 305 | # commands |
| 306 | 306 | ||
| 307 | ifneq ($(findstring s,$(MAKEFLAGS)),) | 307 | ifneq ($(findstring s,$(MAKEFLAGS)),) |
| 308 | quiet=silent_ | 308 | quiet=silent_ |
| 309 | endif | 309 | endif |
| 310 | 310 | ||
| 311 | export quiet Q KBUILD_VERBOSE | 311 | export quiet Q KBUILD_VERBOSE |
| 312 | 312 | ||
| 313 | 313 | ||
| 314 | # Look for make include files relative to root of kernel src | 314 | # Look for make include files relative to root of kernel src |
| 315 | MAKEFLAGS += --include-dir=$(srctree) | 315 | MAKEFLAGS += --include-dir=$(srctree) |
| 316 | 316 | ||
| 317 | # We need some generic definitions (do not try to remake the file). | 317 | # We need some generic definitions (do not try to remake the file). |
| 318 | $(srctree)/scripts/Kbuild.include: ; | 318 | $(srctree)/scripts/Kbuild.include: ; |
| 319 | include $(srctree)/scripts/Kbuild.include | 319 | include $(srctree)/scripts/Kbuild.include |
| 320 | 320 | ||
| 321 | # Make variables (CC, etc...) | 321 | # Make variables (CC, etc...) |
| 322 | 322 | ||
| 323 | AS = $(CROSS_COMPILE)as | 323 | AS = $(CROSS_COMPILE)as |
| 324 | LD = $(CROSS_COMPILE)ld | 324 | LD = $(CROSS_COMPILE)ld |
| 325 | CC = $(CROSS_COMPILE)gcc | 325 | CC = $(CROSS_COMPILE)gcc |
| 326 | CPP = $(CC) -E | 326 | CPP = $(CC) -E |
| 327 | AR = $(CROSS_COMPILE)ar | 327 | AR = $(CROSS_COMPILE)ar |
| 328 | NM = $(CROSS_COMPILE)nm | 328 | NM = $(CROSS_COMPILE)nm |
| 329 | STRIP = $(CROSS_COMPILE)strip | 329 | STRIP = $(CROSS_COMPILE)strip |
| 330 | OBJCOPY = $(CROSS_COMPILE)objcopy | 330 | OBJCOPY = $(CROSS_COMPILE)objcopy |
| 331 | OBJDUMP = $(CROSS_COMPILE)objdump | 331 | OBJDUMP = $(CROSS_COMPILE)objdump |
| 332 | AWK = awk | 332 | AWK = awk |
| 333 | GENKSYMS = scripts/genksyms/genksyms | 333 | GENKSYMS = scripts/genksyms/genksyms |
| 334 | INSTALLKERNEL := installkernel | 334 | INSTALLKERNEL := installkernel |
| 335 | DEPMOD = /sbin/depmod | 335 | DEPMOD = /sbin/depmod |
| 336 | KALLSYMS = scripts/kallsyms | 336 | KALLSYMS = scripts/kallsyms |
| 337 | PERL = perl | 337 | PERL = perl |
| 338 | CHECK = sparse | 338 | CHECK = sparse |
| 339 | 339 | ||
| 340 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ | 340 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ |
| 341 | -Wbitwise -Wno-return-void $(CF) | 341 | -Wbitwise -Wno-return-void $(CF) |
| 342 | CFLAGS_MODULE = | 342 | CFLAGS_MODULE = |
| 343 | AFLAGS_MODULE = | 343 | AFLAGS_MODULE = |
| 344 | LDFLAGS_MODULE = | 344 | LDFLAGS_MODULE = |
| 345 | CFLAGS_KERNEL = | 345 | CFLAGS_KERNEL = |
| 346 | AFLAGS_KERNEL = | 346 | AFLAGS_KERNEL = |
| 347 | CFLAGS_GCOV = -fprofile-arcs -ftest-coverage | 347 | CFLAGS_GCOV = -fprofile-arcs -ftest-coverage |
| 348 | 348 | ||
| 349 | 349 | ||
| 350 | # Use LINUXINCLUDE when you must reference the include/ directory. | 350 | # Use LINUXINCLUDE when you must reference the include/ directory. |
| 351 | # Needed to be compatible with the O= option | 351 | # Needed to be compatible with the O= option |
| 352 | LINUXINCLUDE := -I$(srctree)/arch/$(hdr-arch)/include -Iinclude \ | 352 | LINUXINCLUDE := -I$(srctree)/arch/$(hdr-arch)/include -Iinclude \ |
| 353 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ | 353 | $(if $(KBUILD_SRC), -I$(srctree)/include) \ |
| 354 | -include include/generated/autoconf.h | 354 | -include include/generated/autoconf.h |
| 355 | 355 | ||
| 356 | KBUILD_CPPFLAGS := -D__KERNEL__ | 356 | KBUILD_CPPFLAGS := -D__KERNEL__ |
| 357 | 357 | ||
| 358 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ | 358 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
| 359 | -fno-strict-aliasing -fno-common \ | 359 | -fno-strict-aliasing -fno-common \ |
| 360 | -Werror-implicit-function-declaration \ | 360 | -Werror-implicit-function-declaration \ |
| 361 | -Wno-format-security \ | 361 | -Wno-format-security \ |
| 362 | -fno-delete-null-pointer-checks | 362 | -fno-delete-null-pointer-checks |
| 363 | KBUILD_AFLAGS_KERNEL := | 363 | KBUILD_AFLAGS_KERNEL := |
| 364 | KBUILD_CFLAGS_KERNEL := | 364 | KBUILD_CFLAGS_KERNEL := |
| 365 | KBUILD_AFLAGS := -D__ASSEMBLY__ | 365 | KBUILD_AFLAGS := -D__ASSEMBLY__ |
| 366 | KBUILD_AFLAGS_MODULE := -DMODULE | 366 | KBUILD_AFLAGS_MODULE := -DMODULE |
| 367 | KBUILD_CFLAGS_MODULE := -DMODULE | 367 | KBUILD_CFLAGS_MODULE := -DMODULE |
| 368 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds | 368 | KBUILD_LDFLAGS_MODULE := -T $(srctree)/scripts/module-common.lds |
| 369 | 369 | ||
| 370 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) | 370 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) |
| 371 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) | 371 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) |
| 372 | KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) | 372 | KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) |
| 373 | 373 | ||
| 374 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION | 374 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
| 375 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC | 375 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |
| 376 | export CPP AR NM STRIP OBJCOPY OBJDUMP | 376 | export CPP AR NM STRIP OBJCOPY OBJDUMP |
| 377 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE | 377 | export MAKE AWK GENKSYMS INSTALLKERNEL PERL UTS_MACHINE |
| 378 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS | 378 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS |
| 379 | 379 | ||
| 380 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS | 380 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
| 381 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV | 381 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE CFLAGS_GCOV |
| 382 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE | 382 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
| 383 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE | 383 | export KBUILD_AFLAGS_MODULE KBUILD_CFLAGS_MODULE KBUILD_LDFLAGS_MODULE |
| 384 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL | 384 | export KBUILD_AFLAGS_KERNEL KBUILD_CFLAGS_KERNEL |
| 385 | 385 | ||
| 386 | # When compiling out-of-tree modules, put MODVERDIR in the module | 386 | # When compiling out-of-tree modules, put MODVERDIR in the module |
| 387 | # tree rather than in the kernel tree. The kernel tree might | 387 | # tree rather than in the kernel tree. The kernel tree might |
| 388 | # even be read-only. | 388 | # even be read-only. |
| 389 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions | 389 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions |
| 390 | 390 | ||
| 391 | # Files to ignore in find ... statements | 391 | # Files to ignore in find ... statements |
| 392 | 392 | ||
| 393 | 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 | 393 | 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 |
| 394 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git | 394 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git |
| 395 | 395 | ||
| 396 | # =========================================================================== | 396 | # =========================================================================== |
| 397 | # Rules shared between *config targets and build targets | 397 | # Rules shared between *config targets and build targets |
| 398 | 398 | ||
| 399 | # Basic helpers built in scripts/ | 399 | # Basic helpers built in scripts/ |
| 400 | PHONY += scripts_basic | 400 | PHONY += scripts_basic |
| 401 | scripts_basic: | 401 | scripts_basic: |
| 402 | $(Q)$(MAKE) $(build)=scripts/basic | 402 | $(Q)$(MAKE) $(build)=scripts/basic |
| 403 | $(Q)rm -f .tmp_quiet_recordmcount | 403 | $(Q)rm -f .tmp_quiet_recordmcount |
| 404 | 404 | ||
| 405 | # To avoid any implicit rule to kick in, define an empty command. | 405 | # To avoid any implicit rule to kick in, define an empty command. |
| 406 | scripts/basic/%: scripts_basic ; | 406 | scripts/basic/%: scripts_basic ; |
| 407 | 407 | ||
| 408 | PHONY += outputmakefile | 408 | PHONY += outputmakefile |
| 409 | # outputmakefile generates a Makefile in the output directory, if using a | 409 | # outputmakefile generates a Makefile in the output directory, if using a |
| 410 | # separate output directory. This allows convenient use of make in the | 410 | # separate output directory. This allows convenient use of make in the |
| 411 | # output directory. | 411 | # output directory. |
| 412 | outputmakefile: | 412 | outputmakefile: |
| 413 | ifneq ($(KBUILD_SRC),) | 413 | ifneq ($(KBUILD_SRC),) |
| 414 | $(Q)ln -fsn $(srctree) source | 414 | $(Q)ln -fsn $(srctree) source |
| 415 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ | 415 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ |
| 416 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) | 416 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) |
| 417 | endif | 417 | endif |
| 418 | 418 | ||
| 419 | # To make sure we do not include .config for any of the *config targets | 419 | # To make sure we do not include .config for any of the *config targets |
| 420 | # catch them early, and hand them over to scripts/kconfig/Makefile | 420 | # catch them early, and hand them over to scripts/kconfig/Makefile |
| 421 | # It is allowed to specify more targets when calling make, including | 421 | # It is allowed to specify more targets when calling make, including |
| 422 | # mixing *config targets and build targets. | 422 | # mixing *config targets and build targets. |
| 423 | # For example 'make oldconfig all'. | 423 | # For example 'make oldconfig all'. |
| 424 | # Detect when mixed targets is specified, and make a second invocation | 424 | # Detect when mixed targets is specified, and make a second invocation |
| 425 | # of make so .config is not included in this case either (for *config). | 425 | # of make so .config is not included in this case either (for *config). |
| 426 | 426 | ||
| 427 | no-dot-config-targets := clean mrproper distclean \ | 427 | no-dot-config-targets := clean mrproper distclean \ |
| 428 | cscope gtags TAGS tags help %docs check% coccicheck \ | 428 | cscope gtags TAGS tags help %docs check% coccicheck \ |
| 429 | include/linux/version.h headers_% \ | 429 | include/linux/version.h headers_% \ |
| 430 | kernelversion %src-pkg | 430 | kernelversion %src-pkg |
| 431 | 431 | ||
| 432 | config-targets := 0 | 432 | config-targets := 0 |
| 433 | mixed-targets := 0 | 433 | mixed-targets := 0 |
| 434 | dot-config := 1 | 434 | dot-config := 1 |
| 435 | 435 | ||
| 436 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) | 436 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) |
| 437 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) | 437 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) |
| 438 | dot-config := 0 | 438 | dot-config := 0 |
| 439 | endif | 439 | endif |
| 440 | endif | 440 | endif |
| 441 | 441 | ||
| 442 | ifeq ($(KBUILD_EXTMOD),) | 442 | ifeq ($(KBUILD_EXTMOD),) |
| 443 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) | 443 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) |
| 444 | config-targets := 1 | 444 | config-targets := 1 |
| 445 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) | 445 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) |
| 446 | mixed-targets := 1 | 446 | mixed-targets := 1 |
| 447 | endif | 447 | endif |
| 448 | endif | 448 | endif |
| 449 | endif | 449 | endif |
| 450 | 450 | ||
| 451 | ifeq ($(mixed-targets),1) | 451 | ifeq ($(mixed-targets),1) |
| 452 | # =========================================================================== | 452 | # =========================================================================== |
| 453 | # We're called with mixed targets (*config and build targets). | 453 | # We're called with mixed targets (*config and build targets). |
| 454 | # Handle them one by one. | 454 | # Handle them one by one. |
| 455 | 455 | ||
| 456 | %:: FORCE | 456 | %:: FORCE |
| 457 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ | 457 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ |
| 458 | 458 | ||
| 459 | else | 459 | else |
| 460 | ifeq ($(config-targets),1) | 460 | ifeq ($(config-targets),1) |
| 461 | # =========================================================================== | 461 | # =========================================================================== |
| 462 | # *config targets only - make sure prerequisites are updated, and descend | 462 | # *config targets only - make sure prerequisites are updated, and descend |
| 463 | # in scripts/kconfig to make the *config target | 463 | # in scripts/kconfig to make the *config target |
| 464 | 464 | ||
| 465 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. | 465 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. |
| 466 | # KBUILD_DEFCONFIG may point out an alternative default configuration | 466 | # KBUILD_DEFCONFIG may point out an alternative default configuration |
| 467 | # used for 'make defconfig' | 467 | # used for 'make defconfig' |
| 468 | include $(srctree)/arch/$(SRCARCH)/Makefile | 468 | include $(srctree)/arch/$(SRCARCH)/Makefile |
| 469 | export KBUILD_DEFCONFIG KBUILD_KCONFIG | 469 | export KBUILD_DEFCONFIG KBUILD_KCONFIG |
| 470 | 470 | ||
| 471 | config: scripts_basic outputmakefile FORCE | 471 | config: scripts_basic outputmakefile FORCE |
| 472 | $(Q)mkdir -p include/linux include/config | 472 | $(Q)mkdir -p include/linux include/config |
| 473 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 473 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
| 474 | 474 | ||
| 475 | %config: scripts_basic outputmakefile FORCE | 475 | %config: scripts_basic outputmakefile FORCE |
| 476 | $(Q)mkdir -p include/linux include/config | 476 | $(Q)mkdir -p include/linux include/config |
| 477 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 477 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
| 478 | 478 | ||
| 479 | else | 479 | else |
| 480 | # =========================================================================== | 480 | # =========================================================================== |
| 481 | # Build targets only - this includes vmlinux, arch specific targets, clean | 481 | # Build targets only - this includes vmlinux, arch specific targets, clean |
| 482 | # targets and others. In general all targets except *config targets. | 482 | # targets and others. In general all targets except *config targets. |
| 483 | 483 | ||
| 484 | ifeq ($(KBUILD_EXTMOD),) | 484 | ifeq ($(KBUILD_EXTMOD),) |
| 485 | # Additional helpers built in scripts/ | 485 | # Additional helpers built in scripts/ |
| 486 | # Carefully list dependencies so we do not try to build scripts twice | 486 | # Carefully list dependencies so we do not try to build scripts twice |
| 487 | # in parallel | 487 | # in parallel |
| 488 | PHONY += scripts | 488 | PHONY += scripts |
| 489 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf | 489 | scripts: scripts_basic include/config/auto.conf include/config/tristate.conf |
| 490 | $(Q)$(MAKE) $(build)=$(@) | 490 | $(Q)$(MAKE) $(build)=$(@) |
| 491 | 491 | ||
| 492 | # Objects we will link into vmlinux / subdirs we need to visit | 492 | # Objects we will link into vmlinux / subdirs we need to visit |
| 493 | init-y := init/ | 493 | init-y := init/ |
| 494 | drivers-y := drivers/ sound/ firmware/ | 494 | drivers-y := drivers/ sound/ firmware/ |
| 495 | net-y := net/ | 495 | net-y := net/ |
| 496 | libs-y := lib/ | 496 | libs-y := lib/ |
| 497 | core-y := usr/ | 497 | core-y := usr/ |
| 498 | endif # KBUILD_EXTMOD | 498 | endif # KBUILD_EXTMOD |
| 499 | 499 | ||
| 500 | ifeq ($(dot-config),1) | 500 | ifeq ($(dot-config),1) |
| 501 | # Read in config | 501 | # Read in config |
| 502 | -include include/config/auto.conf | 502 | -include include/config/auto.conf |
| 503 | 503 | ||
| 504 | ifeq ($(KBUILD_EXTMOD),) | 504 | ifeq ($(KBUILD_EXTMOD),) |
| 505 | # Read in dependencies to all Kconfig* files, make sure to run | 505 | # Read in dependencies to all Kconfig* files, make sure to run |
| 506 | # oldconfig if changes are detected. | 506 | # oldconfig if changes are detected. |
| 507 | -include include/config/auto.conf.cmd | 507 | -include include/config/auto.conf.cmd |
| 508 | 508 | ||
| 509 | # To avoid any implicit rule to kick in, define an empty command | 509 | # To avoid any implicit rule to kick in, define an empty command |
| 510 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; | 510 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; |
| 511 | 511 | ||
| 512 | # If .config is newer than include/config/auto.conf, someone tinkered | 512 | # If .config is newer than include/config/auto.conf, someone tinkered |
| 513 | # with it and forgot to run make oldconfig. | 513 | # with it and forgot to run make oldconfig. |
| 514 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so | 514 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so |
| 515 | # we execute the config step to be sure to catch updated Kconfig files | 515 | # we execute the config step to be sure to catch updated Kconfig files |
| 516 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd | 516 | include/config/%.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
| 517 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig | 517 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig |
| 518 | else | 518 | else |
| 519 | # external modules needs include/generated/autoconf.h and include/config/auto.conf | 519 | # external modules needs include/generated/autoconf.h and include/config/auto.conf |
| 520 | # but do not care if they are up-to-date. Use auto.conf to trigger the test | 520 | # but do not care if they are up-to-date. Use auto.conf to trigger the test |
| 521 | PHONY += include/config/auto.conf | 521 | PHONY += include/config/auto.conf |
| 522 | 522 | ||
| 523 | include/config/auto.conf: | 523 | include/config/auto.conf: |
| 524 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ | 524 | $(Q)test -e include/generated/autoconf.h -a -e $@ || ( \ |
| 525 | echo; \ | 525 | echo; \ |
| 526 | echo " ERROR: Kernel configuration is invalid."; \ | 526 | echo " ERROR: Kernel configuration is invalid."; \ |
| 527 | echo " include/generated/autoconf.h or $@ are missing.";\ | 527 | echo " include/generated/autoconf.h or $@ are missing.";\ |
| 528 | echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ | 528 | echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ |
| 529 | echo; \ | 529 | echo; \ |
| 530 | /bin/false) | 530 | /bin/false) |
| 531 | 531 | ||
| 532 | endif # KBUILD_EXTMOD | 532 | endif # KBUILD_EXTMOD |
| 533 | 533 | ||
| 534 | else | 534 | else |
| 535 | # Dummy target needed, because used as prerequisite | 535 | # Dummy target needed, because used as prerequisite |
| 536 | include/config/auto.conf: ; | 536 | include/config/auto.conf: ; |
| 537 | endif # $(dot-config) | 537 | endif # $(dot-config) |
| 538 | 538 | ||
| 539 | # The all: target is the default when no target is given on the | 539 | # The all: target is the default when no target is given on the |
| 540 | # command line. | 540 | # command line. |
| 541 | # This allow a user to issue only 'make' to build a kernel including modules | 541 | # This allow a user to issue only 'make' to build a kernel including modules |
| 542 | # Defaults to vmlinux, but the arch makefile usually adds further targets | 542 | # Defaults to vmlinux, but the arch makefile usually adds further targets |
| 543 | all: vmlinux | 543 | all: vmlinux |
| 544 | 544 | ||
| 545 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE | 545 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
| 546 | KBUILD_CFLAGS += -Os | 546 | KBUILD_CFLAGS += -Os |
| 547 | else | 547 | else |
| 548 | KBUILD_CFLAGS += -O2 | 548 | KBUILD_CFLAGS += -O2 |
| 549 | endif | 549 | endif |
| 550 | 550 | ||
| 551 | include $(srctree)/arch/$(SRCARCH)/Makefile | 551 | include $(srctree)/arch/$(SRCARCH)/Makefile |
| 552 | 552 | ||
| 553 | ifneq ($(CONFIG_FRAME_WARN),0) | 553 | ifneq ($(CONFIG_FRAME_WARN),0) |
| 554 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) | 554 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) |
| 555 | endif | 555 | endif |
| 556 | 556 | ||
| 557 | # Force gcc to behave correct even for buggy distributions | 557 | # Force gcc to behave correct even for buggy distributions |
| 558 | ifndef CONFIG_CC_STACKPROTECTOR | 558 | ifndef CONFIG_CC_STACKPROTECTOR |
| 559 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) | 559 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) |
| 560 | endif | 560 | endif |
| 561 | 561 | ||
| 562 | ifdef CONFIG_FRAME_POINTER | 562 | ifdef CONFIG_FRAME_POINTER |
| 563 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls | 563 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
| 564 | else | 564 | else |
| 565 | # Some targets (ARM with Thumb2, for example), can't be built with frame | 565 | # Some targets (ARM with Thumb2, for example), can't be built with frame |
| 566 | # pointers. For those, we don't have FUNCTION_TRACER automatically | 566 | # pointers. For those, we don't have FUNCTION_TRACER automatically |
| 567 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is | 567 | # select FRAME_POINTER. However, FUNCTION_TRACER adds -pg, and this is |
| 568 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use | 568 | # incompatible with -fomit-frame-pointer with current GCC, so we don't use |
| 569 | # -fomit-frame-pointer with FUNCTION_TRACER. | 569 | # -fomit-frame-pointer with FUNCTION_TRACER. |
| 570 | ifndef CONFIG_FUNCTION_TRACER | 570 | ifndef CONFIG_FUNCTION_TRACER |
| 571 | KBUILD_CFLAGS += -fomit-frame-pointer | 571 | KBUILD_CFLAGS += -fomit-frame-pointer |
| 572 | endif | 572 | endif |
| 573 | endif | 573 | endif |
| 574 | 574 | ||
| 575 | ifdef CONFIG_DEBUG_INFO | 575 | ifdef CONFIG_DEBUG_INFO |
| 576 | KBUILD_CFLAGS += -g | 576 | KBUILD_CFLAGS += -g |
| 577 | KBUILD_AFLAGS += -gdwarf-2 | 577 | KBUILD_AFLAGS += -gdwarf-2 |
| 578 | endif | 578 | endif |
| 579 | 579 | ||
| 580 | ifdef CONFIG_DEBUG_INFO_REDUCED | 580 | ifdef CONFIG_DEBUG_INFO_REDUCED |
| 581 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) | 581 | KBUILD_CFLAGS += $(call cc-option, -femit-struct-debug-baseonly) |
| 582 | endif | 582 | endif |
| 583 | 583 | ||
| 584 | ifdef CONFIG_FUNCTION_TRACER | 584 | ifdef CONFIG_FUNCTION_TRACER |
| 585 | KBUILD_CFLAGS += -pg | 585 | KBUILD_CFLAGS += -pg |
| 586 | ifdef CONFIG_DYNAMIC_FTRACE | 586 | ifdef CONFIG_DYNAMIC_FTRACE |
| 587 | ifdef CONFIG_HAVE_C_RECORDMCOUNT | 587 | ifdef CONFIG_HAVE_C_RECORDMCOUNT |
| 588 | BUILD_C_RECORDMCOUNT := y | 588 | BUILD_C_RECORDMCOUNT := y |
| 589 | export BUILD_C_RECORDMCOUNT | 589 | export BUILD_C_RECORDMCOUNT |
| 590 | endif | 590 | endif |
| 591 | endif | 591 | endif |
| 592 | endif | 592 | endif |
| 593 | 593 | ||
| 594 | # We trigger additional mismatches with less inlining | 594 | # We trigger additional mismatches with less inlining |
| 595 | ifdef CONFIG_DEBUG_SECTION_MISMATCH | 595 | ifdef CONFIG_DEBUG_SECTION_MISMATCH |
| 596 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) | 596 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) |
| 597 | endif | 597 | endif |
| 598 | 598 | ||
| 599 | # arch Makefile may override CC so keep this after arch Makefile is included | 599 | # arch Makefile may override CC so keep this after arch Makefile is included |
| 600 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) | 600 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
| 601 | CHECKFLAGS += $(NOSTDINC_FLAGS) | 601 | CHECKFLAGS += $(NOSTDINC_FLAGS) |
| 602 | 602 | ||
| 603 | # warn about C99 declaration after statement | 603 | # warn about C99 declaration after statement |
| 604 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) | 604 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
| 605 | 605 | ||
| 606 | # disable pointer signed / unsigned warnings in gcc 4.0 | 606 | # disable pointer signed / unsigned warnings in gcc 4.0 |
| 607 | KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) | 607 | KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) |
| 608 | 608 | ||
| 609 | # disable invalid "can't wrap" optimizations for signed / pointers | 609 | # disable invalid "can't wrap" optimizations for signed / pointers |
| 610 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) | 610 | KBUILD_CFLAGS += $(call cc-option,-fno-strict-overflow) |
| 611 | 611 | ||
| 612 | # conserve stack if available | 612 | # conserve stack if available |
| 613 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) | 613 | KBUILD_CFLAGS += $(call cc-option,-fconserve-stack) |
| 614 | 614 | ||
| 615 | # check for 'asm goto' | 615 | # check for 'asm goto' |
| 616 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) | 616 | ifeq ($(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC)), y) |
| 617 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO | 617 | KBUILD_CFLAGS += -DCC_HAVE_ASM_GOTO |
| 618 | endif | 618 | endif |
| 619 | 619 | ||
| 620 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments | 620 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
| 621 | # But warn user when we do so | 621 | # But warn user when we do so |
| 622 | warn-assign = \ | 622 | warn-assign = \ |
| 623 | $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") | 623 | $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") |
| 624 | 624 | ||
| 625 | ifneq ($(KCPPFLAGS),) | 625 | ifneq ($(KCPPFLAGS),) |
| 626 | $(call warn-assign,CPPFLAGS) | 626 | $(call warn-assign,CPPFLAGS) |
| 627 | KBUILD_CPPFLAGS += $(KCPPFLAGS) | 627 | KBUILD_CPPFLAGS += $(KCPPFLAGS) |
| 628 | endif | 628 | endif |
| 629 | ifneq ($(KAFLAGS),) | 629 | ifneq ($(KAFLAGS),) |
| 630 | $(call warn-assign,AFLAGS) | 630 | $(call warn-assign,AFLAGS) |
| 631 | KBUILD_AFLAGS += $(KAFLAGS) | 631 | KBUILD_AFLAGS += $(KAFLAGS) |
| 632 | endif | 632 | endif |
| 633 | ifneq ($(KCFLAGS),) | 633 | ifneq ($(KCFLAGS),) |
| 634 | $(call warn-assign,CFLAGS) | 634 | $(call warn-assign,CFLAGS) |
| 635 | KBUILD_CFLAGS += $(KCFLAGS) | 635 | KBUILD_CFLAGS += $(KCFLAGS) |
| 636 | endif | 636 | endif |
| 637 | 637 | ||
| 638 | # Use --build-id when available. | 638 | # Use --build-id when available. |
| 639 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ | 639 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ |
| 640 | $(call cc-ldoption, -Wl$(comma)--build-id,)) | 640 | $(call cc-ldoption, -Wl$(comma)--build-id,)) |
| 641 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) | 641 | KBUILD_LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) |
| 642 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) | 642 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) |
| 643 | 643 | ||
| 644 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) | 644 | ifeq ($(CONFIG_STRIP_ASM_SYMS),y) |
| 645 | LDFLAGS_vmlinux += $(call ld-option, -X,) | 645 | LDFLAGS_vmlinux += $(call ld-option, -X,) |
| 646 | endif | 646 | endif |
| 647 | 647 | ||
| 648 | # Default kernel image to build when no specific target is given. | 648 | # Default kernel image to build when no specific target is given. |
| 649 | # KBUILD_IMAGE may be overruled on the command line or | 649 | # KBUILD_IMAGE may be overruled on the command line or |
| 650 | # set in the environment | 650 | # set in the environment |
| 651 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over | 651 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over |
| 652 | # this default value | 652 | # this default value |
| 653 | export KBUILD_IMAGE ?= vmlinux | 653 | export KBUILD_IMAGE ?= vmlinux |
| 654 | 654 | ||
| 655 | # | 655 | # |
| 656 | # INSTALL_PATH specifies where to place the updated kernel and system map | 656 | # INSTALL_PATH specifies where to place the updated kernel and system map |
| 657 | # images. Default is /boot, but you can set it to other values | 657 | # images. Default is /boot, but you can set it to other values |
| 658 | export INSTALL_PATH ?= /boot | 658 | export INSTALL_PATH ?= /boot |
| 659 | 659 | ||
| 660 | # | 660 | # |
| 661 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory | 661 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory |
| 662 | # relocations required by build roots. This is not defined in the | 662 | # relocations required by build roots. This is not defined in the |
| 663 | # makefile but the argument can be passed to make if needed. | 663 | # makefile but the argument can be passed to make if needed. |
| 664 | # | 664 | # |
| 665 | 665 | ||
| 666 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) | 666 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
| 667 | export MODLIB | 667 | export MODLIB |
| 668 | 668 | ||
| 669 | # | 669 | # |
| 670 | # INSTALL_MOD_STRIP, if defined, will cause modules to be | 670 | # INSTALL_MOD_STRIP, if defined, will cause modules to be |
| 671 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then | 671 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then |
| 672 | # the default option --strip-debug will be used. Otherwise, | 672 | # the default option --strip-debug will be used. Otherwise, |
| 673 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. | 673 | # INSTALL_MOD_STRIP value will be used as the options to the strip command. |
| 674 | 674 | ||
| 675 | ifdef INSTALL_MOD_STRIP | 675 | ifdef INSTALL_MOD_STRIP |
| 676 | ifeq ($(INSTALL_MOD_STRIP),1) | 676 | ifeq ($(INSTALL_MOD_STRIP),1) |
| 677 | mod_strip_cmd = $(STRIP) --strip-debug | 677 | mod_strip_cmd = $(STRIP) --strip-debug |
| 678 | else | 678 | else |
| 679 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) | 679 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
| 680 | endif # INSTALL_MOD_STRIP=1 | 680 | endif # INSTALL_MOD_STRIP=1 |
| 681 | else | 681 | else |
| 682 | mod_strip_cmd = true | 682 | mod_strip_cmd = true |
| 683 | endif # INSTALL_MOD_STRIP | 683 | endif # INSTALL_MOD_STRIP |
| 684 | export mod_strip_cmd | 684 | export mod_strip_cmd |
| 685 | 685 | ||
| 686 | 686 | ||
| 687 | ifeq ($(KBUILD_EXTMOD),) | 687 | ifeq ($(KBUILD_EXTMOD),) |
| 688 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ | 688 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
| 689 | 689 | ||
| 690 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ | 690 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ |
| 691 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ | 691 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ |
| 692 | $(net-y) $(net-m) $(libs-y) $(libs-m))) | 692 | $(net-y) $(net-m) $(libs-y) $(libs-m))) |
| 693 | 693 | ||
| 694 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ | 694 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ |
| 695 | $(init-n) $(init-) \ | 695 | $(init-n) $(init-) \ |
| 696 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ | 696 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ |
| 697 | $(net-n) $(net-) $(libs-n) $(libs-)))) | 697 | $(net-n) $(net-) $(libs-n) $(libs-)))) |
| 698 | 698 | ||
| 699 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) | 699 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) |
| 700 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) | 700 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) |
| 701 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) | 701 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) |
| 702 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) | 702 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) |
| 703 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) | 703 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) |
| 704 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) | 704 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) |
| 705 | libs-y := $(libs-y1) $(libs-y2) | 705 | libs-y := $(libs-y1) $(libs-y2) |
| 706 | 706 | ||
| 707 | # Build vmlinux | 707 | # Build vmlinux |
| 708 | # --------------------------------------------------------------------------- | 708 | # --------------------------------------------------------------------------- |
| 709 | # vmlinux is built from the objects selected by $(vmlinux-init) and | 709 | # vmlinux is built from the objects selected by $(vmlinux-init) and |
| 710 | # $(vmlinux-main). Most are built-in.o files from top-level directories | 710 | # $(vmlinux-main). Most are built-in.o files from top-level directories |
| 711 | # in the kernel tree, others are specified in arch/$(ARCH)/Makefile. | 711 | # in the kernel tree, others are specified in arch/$(ARCH)/Makefile. |
| 712 | # Ordering when linking is important, and $(vmlinux-init) must be first. | 712 | # Ordering when linking is important, and $(vmlinux-init) must be first. |
| 713 | # | 713 | # |
| 714 | # vmlinux | 714 | # vmlinux |
| 715 | # ^ | 715 | # ^ |
| 716 | # | | 716 | # | |
| 717 | # +-< $(vmlinux-init) | 717 | # +-< $(vmlinux-init) |
| 718 | # | +--< init/version.o + more | 718 | # | +--< init/version.o + more |
| 719 | # | | 719 | # | |
| 720 | # +--< $(vmlinux-main) | 720 | # +--< $(vmlinux-main) |
| 721 | # | +--< driver/built-in.o mm/built-in.o + more | 721 | # | +--< driver/built-in.o mm/built-in.o + more |
| 722 | # | | 722 | # | |
| 723 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) | 723 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) |
| 724 | # | 724 | # |
| 725 | # vmlinux version (uname -v) cannot be updated during normal | 725 | # vmlinux version (uname -v) cannot be updated during normal |
| 726 | # descending-into-subdirs phase since we do not yet know if we need to | 726 | # descending-into-subdirs phase since we do not yet know if we need to |
| 727 | # update vmlinux. | 727 | # update vmlinux. |
| 728 | # Therefore this step is delayed until just before final link of vmlinux - | 728 | # Therefore this step is delayed until just before final link of vmlinux - |
| 729 | # except in the kallsyms case where it is done just before adding the | 729 | # except in the kallsyms case where it is done just before adding the |
| 730 | # symbols to the kernel. | 730 | # symbols to the kernel. |
| 731 | # | 731 | # |
| 732 | # System.map is generated to document addresses of all kernel symbols | 732 | # System.map is generated to document addresses of all kernel symbols |
| 733 | 733 | ||
| 734 | vmlinux-init := $(head-y) $(init-y) | 734 | vmlinux-init := $(head-y) $(init-y) |
| 735 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) | 735 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) |
| 736 | vmlinux-all := $(vmlinux-init) $(vmlinux-main) | 736 | vmlinux-all := $(vmlinux-init) $(vmlinux-main) |
| 737 | vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds | 737 | vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds |
| 738 | export KBUILD_VMLINUX_OBJS := $(vmlinux-all) | 738 | export KBUILD_VMLINUX_OBJS := $(vmlinux-all) |
| 739 | 739 | ||
| 740 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS | 740 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS |
| 741 | # May be overridden by arch/$(ARCH)/Makefile | 741 | # May be overridden by arch/$(ARCH)/Makefile |
| 742 | quiet_cmd_vmlinux__ ?= LD $@ | 742 | quiet_cmd_vmlinux__ ?= LD $@ |
| 743 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ | 743 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ |
| 744 | -T $(vmlinux-lds) $(vmlinux-init) \ | 744 | -T $(vmlinux-lds) $(vmlinux-init) \ |
| 745 | --start-group $(vmlinux-main) --end-group \ | 745 | --start-group $(vmlinux-main) --end-group \ |
| 746 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) | 746 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) |
| 747 | 747 | ||
| 748 | # Generate new vmlinux version | 748 | # Generate new vmlinux version |
| 749 | quiet_cmd_vmlinux_version = GEN .version | 749 | quiet_cmd_vmlinux_version = GEN .version |
| 750 | cmd_vmlinux_version = set -e; \ | 750 | cmd_vmlinux_version = set -e; \ |
| 751 | if [ ! -r .version ]; then \ | 751 | if [ ! -r .version ]; then \ |
| 752 | rm -f .version; \ | 752 | rm -f .version; \ |
| 753 | echo 1 >.version; \ | 753 | echo 1 >.version; \ |
| 754 | else \ | 754 | else \ |
| 755 | mv .version .old_version; \ | 755 | mv .version .old_version; \ |
| 756 | expr 0$$(cat .old_version) + 1 >.version; \ | 756 | expr 0$$(cat .old_version) + 1 >.version; \ |
| 757 | fi; \ | 757 | fi; \ |
| 758 | $(MAKE) $(build)=init | 758 | $(MAKE) $(build)=init |
| 759 | 759 | ||
| 760 | # Generate System.map | 760 | # Generate System.map |
| 761 | quiet_cmd_sysmap = SYSMAP | 761 | quiet_cmd_sysmap = SYSMAP |
| 762 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap | 762 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap |
| 763 | 763 | ||
| 764 | # Link of vmlinux | 764 | # Link of vmlinux |
| 765 | # If CONFIG_KALLSYMS is set .version is already updated | 765 | # If CONFIG_KALLSYMS is set .version is already updated |
| 766 | # Generate System.map and verify that the content is consistent | 766 | # Generate System.map and verify that the content is consistent |
| 767 | # Use + in front of the vmlinux_version rule to silent warning with make -j2 | 767 | # Use + in front of the vmlinux_version rule to silent warning with make -j2 |
| 768 | # First command is ':' to allow us to use + in front of the rule | 768 | # First command is ':' to allow us to use + in front of the rule |
| 769 | define rule_vmlinux__ | 769 | define rule_vmlinux__ |
| 770 | : | 770 | : |
| 771 | $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) | 771 | $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) |
| 772 | 772 | ||
| 773 | $(call cmd,vmlinux__) | 773 | $(call cmd,vmlinux__) |
| 774 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | 774 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
| 775 | 775 | ||
| 776 | $(Q)$(if $($(quiet)cmd_sysmap), \ | 776 | $(Q)$(if $($(quiet)cmd_sysmap), \ |
| 777 | echo ' $($(quiet)cmd_sysmap) System.map' &&) \ | 777 | echo ' $($(quiet)cmd_sysmap) System.map' &&) \ |
| 778 | $(cmd_sysmap) $@ System.map; \ | 778 | $(cmd_sysmap) $@ System.map; \ |
| 779 | if [ $$? -ne 0 ]; then \ | 779 | if [ $$? -ne 0 ]; then \ |
| 780 | rm -f $@; \ | 780 | rm -f $@; \ |
| 781 | /bin/false; \ | 781 | /bin/false; \ |
| 782 | fi; | 782 | fi; |
| 783 | $(verify_kallsyms) | 783 | $(verify_kallsyms) |
| 784 | endef | 784 | endef |
| 785 | 785 | ||
| 786 | 786 | ||
| 787 | ifdef CONFIG_KALLSYMS | 787 | ifdef CONFIG_KALLSYMS |
| 788 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) | 788 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) |
| 789 | # It's a three stage process: | 789 | # It's a three stage process: |
| 790 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is | 790 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is |
| 791 | # empty | 791 | # empty |
| 792 | # Running kallsyms on that gives us .tmp_kallsyms1.o with | 792 | # Running kallsyms on that gives us .tmp_kallsyms1.o with |
| 793 | # the right size - vmlinux version (uname -v) is updated during this step | 793 | # the right size - vmlinux version (uname -v) is updated during this step |
| 794 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size, | 794 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size, |
| 795 | # but due to the added section, some addresses have shifted. | 795 | # but due to the added section, some addresses have shifted. |
| 796 | # From here, we generate a correct .tmp_kallsyms2.o | 796 | # From here, we generate a correct .tmp_kallsyms2.o |
| 797 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. | 797 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. |
| 798 | # o Verify that the System.map from vmlinux matches the map from | 798 | # o Verify that the System.map from vmlinux matches the map from |
| 799 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. | 799 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. |
| 800 | # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using | 800 | # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using |
| 801 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a | 801 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a |
| 802 | # temporary bypass to allow the kernel to be built while the | 802 | # temporary bypass to allow the kernel to be built while the |
| 803 | # maintainers work out what went wrong with kallsyms. | 803 | # maintainers work out what went wrong with kallsyms. |
| 804 | 804 | ||
| 805 | ifdef CONFIG_KALLSYMS_EXTRA_PASS | 805 | ifdef CONFIG_KALLSYMS_EXTRA_PASS |
| 806 | last_kallsyms := 3 | 806 | last_kallsyms := 3 |
| 807 | else | 807 | else |
| 808 | last_kallsyms := 2 | 808 | last_kallsyms := 2 |
| 809 | endif | 809 | endif |
| 810 | 810 | ||
| 811 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o | 811 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o |
| 812 | 812 | ||
| 813 | define verify_kallsyms | 813 | define verify_kallsyms |
| 814 | $(Q)$(if $($(quiet)cmd_sysmap), \ | 814 | $(Q)$(if $($(quiet)cmd_sysmap), \ |
| 815 | echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ | 815 | echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ |
| 816 | $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map | 816 | $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map |
| 817 | $(Q)cmp -s System.map .tmp_System.map || \ | 817 | $(Q)cmp -s System.map .tmp_System.map || \ |
| 818 | (echo Inconsistent kallsyms data; \ | 818 | (echo Inconsistent kallsyms data; \ |
| 819 | echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ | 819 | echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ |
| 820 | rm .tmp_kallsyms* ; /bin/false ) | 820 | rm .tmp_kallsyms* ; /bin/false ) |
| 821 | endef | 821 | endef |
| 822 | 822 | ||
| 823 | # Update vmlinux version before link | 823 | # Update vmlinux version before link |
| 824 | # Use + in front of this rule to silent warning about make -j1 | 824 | # Use + in front of this rule to silent warning about make -j1 |
| 825 | # First command is ':' to allow us to use + in front of this rule | 825 | # First command is ':' to allow us to use + in front of this rule |
| 826 | cmd_ksym_ld = $(cmd_vmlinux__) | 826 | cmd_ksym_ld = $(cmd_vmlinux__) |
| 827 | define rule_ksym_ld | 827 | define rule_ksym_ld |
| 828 | : | 828 | : |
| 829 | +$(call cmd,vmlinux_version) | 829 | +$(call cmd,vmlinux_version) |
| 830 | $(call cmd,vmlinux__) | 830 | $(call cmd,vmlinux__) |
| 831 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | 831 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
| 832 | endef | 832 | endef |
| 833 | 833 | ||
| 834 | # Generate .S file with all kernel symbols | 834 | # Generate .S file with all kernel symbols |
| 835 | quiet_cmd_kallsyms = KSYM $@ | 835 | quiet_cmd_kallsyms = KSYM $@ |
| 836 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ | 836 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ |
| 837 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ | 837 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ |
| 838 | 838 | ||
| 839 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE | 839 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE |
| 840 | $(call if_changed_dep,as_o_S) | 840 | $(call if_changed_dep,as_o_S) |
| 841 | 841 | ||
| 842 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) | 842 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) |
| 843 | $(call cmd,kallsyms) | 843 | $(call cmd,kallsyms) |
| 844 | 844 | ||
| 845 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version | 845 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version |
| 846 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE | 846 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE |
| 847 | $(call if_changed_rule,ksym_ld) | 847 | $(call if_changed_rule,ksym_ld) |
| 848 | 848 | ||
| 849 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE | 849 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE |
| 850 | $(call if_changed,vmlinux__) | 850 | $(call if_changed,vmlinux__) |
| 851 | 851 | ||
| 852 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE | 852 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE |
| 853 | $(call if_changed,vmlinux__) | 853 | $(call if_changed,vmlinux__) |
| 854 | 854 | ||
| 855 | # Needs to visit scripts/ before $(KALLSYMS) can be used. | 855 | # Needs to visit scripts/ before $(KALLSYMS) can be used. |
| 856 | $(KALLSYMS): scripts ; | 856 | $(KALLSYMS): scripts ; |
| 857 | 857 | ||
| 858 | # Generate some data for debugging strange kallsyms problems | 858 | # Generate some data for debugging strange kallsyms problems |
| 859 | debug_kallsyms: .tmp_map$(last_kallsyms) | 859 | debug_kallsyms: .tmp_map$(last_kallsyms) |
| 860 | 860 | ||
| 861 | .tmp_map%: .tmp_vmlinux% FORCE | 861 | .tmp_map%: .tmp_vmlinux% FORCE |
| 862 | ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ | 862 | ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ |
| 863 | 863 | ||
| 864 | .tmp_map3: .tmp_map2 | 864 | .tmp_map3: .tmp_map2 |
| 865 | 865 | ||
| 866 | .tmp_map2: .tmp_map1 | 866 | .tmp_map2: .tmp_map1 |
| 867 | 867 | ||
| 868 | endif # ifdef CONFIG_KALLSYMS | 868 | endif # ifdef CONFIG_KALLSYMS |
| 869 | 869 | ||
| 870 | # Do modpost on a prelinked vmlinux. The finally linked vmlinux has | 870 | # Do modpost on a prelinked vmlinux. The finally linked vmlinux has |
| 871 | # relevant sections renamed as per the linker script. | 871 | # relevant sections renamed as per the linker script. |
| 872 | quiet_cmd_vmlinux-modpost = LD $@ | 872 | quiet_cmd_vmlinux-modpost = LD $@ |
| 873 | cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ | 873 | cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ |
| 874 | $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ | 874 | $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ |
| 875 | $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) | 875 | $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) |
| 876 | define rule_vmlinux-modpost | 876 | define rule_vmlinux-modpost |
| 877 | : | 877 | : |
| 878 | +$(call cmd,vmlinux-modpost) | 878 | +$(call cmd,vmlinux-modpost) |
| 879 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ | 879 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ |
| 880 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd | 880 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd |
| 881 | endef | 881 | endef |
| 882 | 882 | ||
| 883 | # vmlinux image - including updated kernel symbols | 883 | # vmlinux image - including updated kernel symbols |
| 884 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE | 884 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE |
| 885 | ifdef CONFIG_HEADERS_CHECK | 885 | ifdef CONFIG_HEADERS_CHECK |
| 886 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check | 886 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
| 887 | endif | 887 | endif |
| 888 | ifdef CONFIG_SAMPLES | 888 | ifdef CONFIG_SAMPLES |
| 889 | $(Q)$(MAKE) $(build)=samples | 889 | $(Q)$(MAKE) $(build)=samples |
| 890 | endif | 890 | endif |
| 891 | ifdef CONFIG_BUILD_DOCSRC | 891 | ifdef CONFIG_BUILD_DOCSRC |
| 892 | $(Q)$(MAKE) $(build)=Documentation | 892 | $(Q)$(MAKE) $(build)=Documentation |
| 893 | endif | 893 | endif |
| 894 | $(call vmlinux-modpost) | 894 | $(call vmlinux-modpost) |
| 895 | $(call if_changed_rule,vmlinux__) | 895 | $(call if_changed_rule,vmlinux__) |
| 896 | $(Q)rm -f .old_version | 896 | $(Q)rm -f .old_version |
| 897 | 897 | ||
| 898 | # build vmlinux.o first to catch section mismatch errors early | 898 | # build vmlinux.o first to catch section mismatch errors early |
| 899 | ifdef CONFIG_KALLSYMS | 899 | ifdef CONFIG_KALLSYMS |
| 900 | .tmp_vmlinux1: vmlinux.o | 900 | .tmp_vmlinux1: vmlinux.o |
| 901 | endif | 901 | endif |
| 902 | 902 | ||
| 903 | modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) | 903 | modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) |
| 904 | vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE | 904 | vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE |
| 905 | $(call if_changed_rule,vmlinux-modpost) | 905 | $(call if_changed_rule,vmlinux-modpost) |
| 906 | 906 | ||
| 907 | # The actual objects are generated when descending, | 907 | # The actual objects are generated when descending, |
| 908 | # make sure no implicit rule kicks in | 908 | # make sure no implicit rule kicks in |
| 909 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; | 909 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; |
| 910 | 910 | ||
| 911 | # Handle descending into subdirectories listed in $(vmlinux-dirs) | 911 | # Handle descending into subdirectories listed in $(vmlinux-dirs) |
| 912 | # Preset locale variables to speed up the build process. Limit locale | 912 | # Preset locale variables to speed up the build process. Limit locale |
| 913 | # tweaks to this spot to avoid wrong language settings when running | 913 | # tweaks to this spot to avoid wrong language settings when running |
| 914 | # make menuconfig etc. | 914 | # make menuconfig etc. |
| 915 | # Error messages still appears in the original language | 915 | # Error messages still appears in the original language |
| 916 | 916 | ||
| 917 | PHONY += $(vmlinux-dirs) | 917 | PHONY += $(vmlinux-dirs) |
| 918 | $(vmlinux-dirs): prepare scripts | 918 | $(vmlinux-dirs): prepare scripts |
| 919 | $(Q)$(MAKE) $(build)=$@ | 919 | $(Q)$(MAKE) $(build)=$@ |
| 920 | 920 | ||
| 921 | # Store (new) KERNELRELASE string in include/config/kernel.release | 921 | # Store (new) KERNELRELASE string in include/config/kernel.release |
| 922 | include/config/kernel.release: include/config/auto.conf FORCE | 922 | include/config/kernel.release: include/config/auto.conf FORCE |
| 923 | $(Q)rm -f $@ | 923 | $(Q)rm -f $@ |
| 924 | $(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" > $@ | 924 | $(Q)echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" > $@ |
| 925 | 925 | ||
| 926 | 926 | ||
| 927 | # Things we need to do before we recursively start building the kernel | 927 | # Things we need to do before we recursively start building the kernel |
| 928 | # or the modules are listed in "prepare". | 928 | # or the modules are listed in "prepare". |
| 929 | # A multi level approach is used. prepareN is processed before prepareN-1. | 929 | # A multi level approach is used. prepareN is processed before prepareN-1. |
| 930 | # archprepare is used in arch Makefiles and when processed asm symlink, | 930 | # archprepare is used in arch Makefiles and when processed asm symlink, |
| 931 | # version.h and scripts_basic is processed / created. | 931 | # version.h and scripts_basic is processed / created. |
| 932 | 932 | ||
| 933 | # Listed in dependency order | 933 | # Listed in dependency order |
| 934 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 | 934 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
| 935 | 935 | ||
| 936 | # prepare3 is used to check if we are building in a separate output directory, | 936 | # prepare3 is used to check if we are building in a separate output directory, |
| 937 | # and if so do: | 937 | # and if so do: |
| 938 | # 1) Check that make has not been executed in the kernel src $(srctree) | 938 | # 1) Check that make has not been executed in the kernel src $(srctree) |
| 939 | prepare3: include/config/kernel.release | 939 | prepare3: include/config/kernel.release |
| 940 | ifneq ($(KBUILD_SRC),) | 940 | ifneq ($(KBUILD_SRC),) |
| 941 | @$(kecho) ' Using $(srctree) as source for kernel' | 941 | @$(kecho) ' Using $(srctree) as source for kernel' |
| 942 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ | 942 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
| 943 | echo " $(srctree) is not clean, please run 'make mrproper'";\ | 943 | echo " $(srctree) is not clean, please run 'make mrproper'";\ |
| 944 | echo " in the '$(srctree)' directory.";\ | 944 | echo " in the '$(srctree)' directory.";\ |
| 945 | /bin/false; \ | 945 | /bin/false; \ |
| 946 | fi; | 946 | fi; |
| 947 | endif | 947 | endif |
| 948 | 948 | ||
| 949 | # prepare2 creates a makefile if using a separate output directory | 949 | # prepare2 creates a makefile if using a separate output directory |
| 950 | prepare2: prepare3 outputmakefile | 950 | prepare2: prepare3 outputmakefile |
| 951 | 951 | ||
| 952 | prepare1: prepare2 include/linux/version.h include/generated/utsrelease.h \ | 952 | prepare1: prepare2 include/linux/version.h include/generated/utsrelease.h \ |
| 953 | include/config/auto.conf | 953 | include/config/auto.conf |
| 954 | $(cmd_crmodverdir) | 954 | $(cmd_crmodverdir) |
| 955 | 955 | ||
| 956 | archprepare: prepare1 scripts_basic | 956 | archprepare: prepare1 scripts_basic |
| 957 | 957 | ||
| 958 | prepare0: archprepare FORCE | 958 | prepare0: archprepare FORCE |
| 959 | $(Q)$(MAKE) $(build)=. | 959 | $(Q)$(MAKE) $(build)=. |
| 960 | $(Q)$(MAKE) $(build)=. missing-syscalls | 960 | $(Q)$(MAKE) $(build)=. missing-syscalls |
| 961 | 961 | ||
| 962 | # All the preparing.. | 962 | # All the preparing.. |
| 963 | prepare: prepare0 | 963 | prepare: prepare0 |
| 964 | 964 | ||
| 965 | # Generate some files | 965 | # Generate some files |
| 966 | # --------------------------------------------------------------------------- | 966 | # --------------------------------------------------------------------------- |
| 967 | 967 | ||
| 968 | # KERNELRELEASE can change from a few different places, meaning version.h | 968 | # KERNELRELEASE can change from a few different places, meaning version.h |
| 969 | # needs to be updated, so this check is forced on all builds | 969 | # needs to be updated, so this check is forced on all builds |
| 970 | 970 | ||
| 971 | uts_len := 64 | 971 | uts_len := 64 |
| 972 | define filechk_utsrelease.h | 972 | define filechk_utsrelease.h |
| 973 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ | 973 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ |
| 974 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ | 974 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ |
| 975 | exit 1; \ | 975 | exit 1; \ |
| 976 | fi; \ | 976 | fi; \ |
| 977 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) | 977 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) |
| 978 | endef | 978 | endef |
| 979 | 979 | ||
| 980 | define filechk_version.h | 980 | define filechk_version.h |
| 981 | (echo \#define LINUX_VERSION_CODE $(shell \ | 981 | (echo \#define LINUX_VERSION_CODE $(shell \ |
| 982 | expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ | 982 | expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ |
| 983 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) | 983 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) |
| 984 | endef | 984 | endef |
| 985 | 985 | ||
| 986 | include/linux/version.h: $(srctree)/Makefile FORCE | 986 | include/linux/version.h: $(srctree)/Makefile FORCE |
| 987 | $(call filechk,version.h) | 987 | $(call filechk,version.h) |
| 988 | 988 | ||
| 989 | include/generated/utsrelease.h: include/config/kernel.release FORCE | 989 | include/generated/utsrelease.h: include/config/kernel.release FORCE |
| 990 | $(call filechk,utsrelease.h) | 990 | $(call filechk,utsrelease.h) |
| 991 | 991 | ||
| 992 | PHONY += headerdep | 992 | PHONY += headerdep |
| 993 | headerdep: | 993 | headerdep: |
| 994 | $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl | 994 | $(Q)find $(srctree)/include/ -name '*.h' | xargs --max-args 1 \ |
| 995 | $(srctree)/scripts/headerdep.pl -I$(srctree)/include | ||
| 995 | 996 | ||
| 996 | # --------------------------------------------------------------------------- | 997 | # --------------------------------------------------------------------------- |
| 997 | 998 | ||
| 998 | PHONY += depend dep | 999 | PHONY += depend dep |
| 999 | depend dep: | 1000 | depend dep: |
| 1000 | @echo '*** Warning: make $@ is unnecessary now.' | 1001 | @echo '*** Warning: make $@ is unnecessary now.' |
| 1001 | 1002 | ||
| 1002 | # --------------------------------------------------------------------------- | 1003 | # --------------------------------------------------------------------------- |
| 1003 | # Firmware install | 1004 | # Firmware install |
| 1004 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware | 1005 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware |
| 1005 | export INSTALL_FW_PATH | 1006 | export INSTALL_FW_PATH |
| 1006 | 1007 | ||
| 1007 | PHONY += firmware_install | 1008 | PHONY += firmware_install |
| 1008 | firmware_install: FORCE | 1009 | firmware_install: FORCE |
| 1009 | @mkdir -p $(objtree)/firmware | 1010 | @mkdir -p $(objtree)/firmware |
| 1010 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install | 1011 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install |
| 1011 | 1012 | ||
| 1012 | # --------------------------------------------------------------------------- | 1013 | # --------------------------------------------------------------------------- |
| 1013 | # Kernel headers | 1014 | # Kernel headers |
| 1014 | 1015 | ||
| 1015 | #Default location for installed headers | 1016 | #Default location for installed headers |
| 1016 | export INSTALL_HDR_PATH = $(objtree)/usr | 1017 | export INSTALL_HDR_PATH = $(objtree)/usr |
| 1017 | 1018 | ||
| 1018 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj | 1019 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj |
| 1019 | 1020 | ||
| 1020 | # If we do an all arch process set dst to asm-$(hdr-arch) | 1021 | # If we do an all arch process set dst to asm-$(hdr-arch) |
| 1021 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) | 1022 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) |
| 1022 | 1023 | ||
| 1023 | PHONY += __headers | 1024 | PHONY += __headers |
| 1024 | __headers: include/linux/version.h scripts_basic FORCE | 1025 | __headers: include/linux/version.h scripts_basic FORCE |
| 1025 | $(Q)$(MAKE) $(build)=scripts build_unifdef | 1026 | $(Q)$(MAKE) $(build)=scripts build_unifdef |
| 1026 | 1027 | ||
| 1027 | PHONY += headers_install_all | 1028 | PHONY += headers_install_all |
| 1028 | headers_install_all: | 1029 | headers_install_all: |
| 1029 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install | 1030 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install |
| 1030 | 1031 | ||
| 1031 | PHONY += headers_install | 1032 | PHONY += headers_install |
| 1032 | headers_install: __headers | 1033 | headers_install: __headers |
| 1033 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild),, \ | 1034 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild),, \ |
| 1034 | $(error Headers not exportable for the $(SRCARCH) architecture)) | 1035 | $(error Headers not exportable for the $(SRCARCH) architecture)) |
| 1035 | $(Q)$(MAKE) $(hdr-inst)=include | 1036 | $(Q)$(MAKE) $(hdr-inst)=include |
| 1036 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) | 1037 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) |
| 1037 | 1038 | ||
| 1038 | PHONY += headers_check_all | 1039 | PHONY += headers_check_all |
| 1039 | headers_check_all: headers_install_all | 1040 | headers_check_all: headers_install_all |
| 1040 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check | 1041 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check |
| 1041 | 1042 | ||
| 1042 | PHONY += headers_check | 1043 | PHONY += headers_check |
| 1043 | headers_check: headers_install | 1044 | headers_check: headers_install |
| 1044 | $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 | 1045 | $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 |
| 1045 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) HDRCHECK=1 | 1046 | $(Q)$(MAKE) $(hdr-inst)=arch/$(hdr-arch)/include/asm $(hdr-dst) HDRCHECK=1 |
| 1046 | 1047 | ||
| 1047 | # --------------------------------------------------------------------------- | 1048 | # --------------------------------------------------------------------------- |
| 1048 | # Modules | 1049 | # Modules |
| 1049 | 1050 | ||
| 1050 | ifdef CONFIG_MODULES | 1051 | ifdef CONFIG_MODULES |
| 1051 | 1052 | ||
| 1052 | # By default, build modules as well | 1053 | # By default, build modules as well |
| 1053 | 1054 | ||
| 1054 | all: modules | 1055 | all: modules |
| 1055 | 1056 | ||
| 1056 | # Build modules | 1057 | # Build modules |
| 1057 | # | 1058 | # |
| 1058 | # A module can be listed more than once in obj-m resulting in | 1059 | # A module can be listed more than once in obj-m resulting in |
| 1059 | # duplicate lines in modules.order files. Those are removed | 1060 | # duplicate lines in modules.order files. Those are removed |
| 1060 | # using awk while concatenating to the final file. | 1061 | # using awk while concatenating to the final file. |
| 1061 | 1062 | ||
| 1062 | PHONY += modules | 1063 | PHONY += modules |
| 1063 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin | 1064 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) modules.builtin |
| 1064 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order | 1065 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
| 1065 | @$(kecho) ' Building modules, stage 2.'; | 1066 | @$(kecho) ' Building modules, stage 2.'; |
| 1066 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1067 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1067 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild | 1068 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
| 1068 | 1069 | ||
| 1069 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) | 1070 | modules.builtin: $(vmlinux-dirs:%=%/modules.builtin) |
| 1070 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin | 1071 | $(Q)$(AWK) '!x[$$0]++' $^ > $(objtree)/modules.builtin |
| 1071 | 1072 | ||
| 1072 | %/modules.builtin: include/config/auto.conf | 1073 | %/modules.builtin: include/config/auto.conf |
| 1073 | $(Q)$(MAKE) $(modbuiltin)=$* | 1074 | $(Q)$(MAKE) $(modbuiltin)=$* |
| 1074 | 1075 | ||
| 1075 | 1076 | ||
| 1076 | # Target to prepare building external modules | 1077 | # Target to prepare building external modules |
| 1077 | PHONY += modules_prepare | 1078 | PHONY += modules_prepare |
| 1078 | modules_prepare: prepare scripts | 1079 | modules_prepare: prepare scripts |
| 1079 | 1080 | ||
| 1080 | # Target to install modules | 1081 | # Target to install modules |
| 1081 | PHONY += modules_install | 1082 | PHONY += modules_install |
| 1082 | modules_install: _modinst_ _modinst_post | 1083 | modules_install: _modinst_ _modinst_post |
| 1083 | 1084 | ||
| 1084 | PHONY += _modinst_ | 1085 | PHONY += _modinst_ |
| 1085 | _modinst_: | 1086 | _modinst_: |
| 1086 | @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ | 1087 | @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ |
| 1087 | echo "Warning: you may need to install module-init-tools"; \ | 1088 | echo "Warning: you may need to install module-init-tools"; \ |
| 1088 | echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ | 1089 | echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ |
| 1089 | sleep 1; \ | 1090 | sleep 1; \ |
| 1090 | fi | 1091 | fi |
| 1091 | @rm -rf $(MODLIB)/kernel | 1092 | @rm -rf $(MODLIB)/kernel |
| 1092 | @rm -f $(MODLIB)/source | 1093 | @rm -f $(MODLIB)/source |
| 1093 | @mkdir -p $(MODLIB)/kernel | 1094 | @mkdir -p $(MODLIB)/kernel |
| 1094 | @ln -s $(srctree) $(MODLIB)/source | 1095 | @ln -s $(srctree) $(MODLIB)/source |
| 1095 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ | 1096 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ |
| 1096 | rm -f $(MODLIB)/build ; \ | 1097 | rm -f $(MODLIB)/build ; \ |
| 1097 | ln -s $(objtree) $(MODLIB)/build ; \ | 1098 | ln -s $(objtree) $(MODLIB)/build ; \ |
| 1098 | fi | 1099 | fi |
| 1099 | @cp -f $(objtree)/modules.order $(MODLIB)/ | 1100 | @cp -f $(objtree)/modules.order $(MODLIB)/ |
| 1100 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ | 1101 | @cp -f $(objtree)/modules.builtin $(MODLIB)/ |
| 1101 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1102 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
| 1102 | 1103 | ||
| 1103 | # This depmod is only for convenience to give the initial | 1104 | # This depmod is only for convenience to give the initial |
| 1104 | # boot a modules.dep even before / is mounted read-write. However the | 1105 | # boot a modules.dep even before / is mounted read-write. However the |
| 1105 | # boot script depmod is the master version. | 1106 | # boot script depmod is the master version. |
| 1106 | PHONY += _modinst_post | 1107 | PHONY += _modinst_post |
| 1107 | _modinst_post: _modinst_ | 1108 | _modinst_post: _modinst_ |
| 1108 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst | 1109 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
| 1109 | $(call cmd,depmod) | 1110 | $(call cmd,depmod) |
| 1110 | 1111 | ||
| 1111 | else # CONFIG_MODULES | 1112 | else # CONFIG_MODULES |
| 1112 | 1113 | ||
| 1113 | # Modules not configured | 1114 | # Modules not configured |
| 1114 | # --------------------------------------------------------------------------- | 1115 | # --------------------------------------------------------------------------- |
| 1115 | 1116 | ||
| 1116 | modules modules_install: FORCE | 1117 | modules modules_install: FORCE |
| 1117 | @echo | 1118 | @echo |
| 1118 | @echo "The present kernel configuration has modules disabled." | 1119 | @echo "The present kernel configuration has modules disabled." |
| 1119 | @echo "Type 'make config' and enable loadable module support." | 1120 | @echo "Type 'make config' and enable loadable module support." |
| 1120 | @echo "Then build a kernel with module support enabled." | 1121 | @echo "Then build a kernel with module support enabled." |
| 1121 | @echo | 1122 | @echo |
| 1122 | @exit 1 | 1123 | @exit 1 |
| 1123 | 1124 | ||
| 1124 | endif # CONFIG_MODULES | 1125 | endif # CONFIG_MODULES |
| 1125 | 1126 | ||
| 1126 | ### | 1127 | ### |
| 1127 | # Cleaning is done on three levels. | 1128 | # Cleaning is done on three levels. |
| 1128 | # make clean Delete most generated files | 1129 | # make clean Delete most generated files |
| 1129 | # Leave enough to build external modules | 1130 | # Leave enough to build external modules |
| 1130 | # make mrproper Delete the current configuration, and all generated files | 1131 | # make mrproper Delete the current configuration, and all generated files |
| 1131 | # make distclean Remove editor backup files, patch leftover files and the like | 1132 | # make distclean Remove editor backup files, patch leftover files and the like |
| 1132 | 1133 | ||
| 1133 | # Directories & files removed with 'make clean' | 1134 | # Directories & files removed with 'make clean' |
| 1134 | CLEAN_DIRS += $(MODVERDIR) | 1135 | CLEAN_DIRS += $(MODVERDIR) |
| 1135 | CLEAN_FILES += vmlinux System.map \ | 1136 | CLEAN_FILES += vmlinux System.map \ |
| 1136 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map | 1137 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map |
| 1137 | 1138 | ||
| 1138 | # Directories & files removed with 'make mrproper' | 1139 | # Directories & files removed with 'make mrproper' |
| 1139 | MRPROPER_DIRS += include/config usr/include include/generated | 1140 | MRPROPER_DIRS += include/config usr/include include/generated |
| 1140 | MRPROPER_FILES += .config .config.old .version .old_version \ | 1141 | MRPROPER_FILES += .config .config.old .version .old_version \ |
| 1141 | include/linux/version.h \ | 1142 | include/linux/version.h \ |
| 1142 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS | 1143 | Module.symvers tags TAGS cscope* GPATH GTAGS GRTAGS GSYMS |
| 1143 | 1144 | ||
| 1144 | # clean - Delete most, but leave enough to build external modules | 1145 | # clean - Delete most, but leave enough to build external modules |
| 1145 | # | 1146 | # |
| 1146 | clean: rm-dirs := $(CLEAN_DIRS) | 1147 | clean: rm-dirs := $(CLEAN_DIRS) |
| 1147 | clean: rm-files := $(CLEAN_FILES) | 1148 | clean: rm-files := $(CLEAN_FILES) |
| 1148 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation) | 1149 | clean-dirs := $(addprefix _clean_, . $(vmlinux-alldirs) Documentation) |
| 1149 | 1150 | ||
| 1150 | PHONY += $(clean-dirs) clean archclean | 1151 | PHONY += $(clean-dirs) clean archclean |
| 1151 | $(clean-dirs): | 1152 | $(clean-dirs): |
| 1152 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1153 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
| 1153 | 1154 | ||
| 1154 | clean: archclean | 1155 | clean: archclean |
| 1155 | 1156 | ||
| 1156 | # mrproper - Delete all generated files, including .config | 1157 | # mrproper - Delete all generated files, including .config |
| 1157 | # | 1158 | # |
| 1158 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) | 1159 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) |
| 1159 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) | 1160 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) |
| 1160 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) | 1161 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) |
| 1161 | 1162 | ||
| 1162 | PHONY += $(mrproper-dirs) mrproper archmrproper | 1163 | PHONY += $(mrproper-dirs) mrproper archmrproper |
| 1163 | $(mrproper-dirs): | 1164 | $(mrproper-dirs): |
| 1164 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) | 1165 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) |
| 1165 | 1166 | ||
| 1166 | mrproper: clean archmrproper $(mrproper-dirs) | 1167 | mrproper: clean archmrproper $(mrproper-dirs) |
| 1167 | $(call cmd,rmdirs) | 1168 | $(call cmd,rmdirs) |
| 1168 | $(call cmd,rmfiles) | 1169 | $(call cmd,rmfiles) |
| 1169 | 1170 | ||
| 1170 | # distclean | 1171 | # distclean |
| 1171 | # | 1172 | # |
| 1172 | PHONY += distclean | 1173 | PHONY += distclean |
| 1173 | 1174 | ||
| 1174 | distclean: mrproper | 1175 | distclean: mrproper |
| 1175 | @find $(srctree) $(RCS_FIND_IGNORE) \ | 1176 | @find $(srctree) $(RCS_FIND_IGNORE) \ |
| 1176 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ | 1177 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
| 1177 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ | 1178 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
| 1178 | -o -name '.*.rej' -o -size 0 \ | 1179 | -o -name '.*.rej' -o -size 0 \ |
| 1179 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ | 1180 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ |
| 1180 | -type f -print | xargs rm -f | 1181 | -type f -print | xargs rm -f |
| 1181 | 1182 | ||
| 1182 | 1183 | ||
| 1183 | # Packaging of the kernel to various formats | 1184 | # Packaging of the kernel to various formats |
| 1184 | # --------------------------------------------------------------------------- | 1185 | # --------------------------------------------------------------------------- |
| 1185 | # rpm target kept for backward compatibility | 1186 | # rpm target kept for backward compatibility |
| 1186 | package-dir := $(srctree)/scripts/package | 1187 | package-dir := $(srctree)/scripts/package |
| 1187 | 1188 | ||
| 1188 | %src-pkg: FORCE | 1189 | %src-pkg: FORCE |
| 1189 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1190 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
| 1190 | %pkg: include/config/kernel.release FORCE | 1191 | %pkg: include/config/kernel.release FORCE |
| 1191 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1192 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
| 1192 | rpm: include/config/kernel.release FORCE | 1193 | rpm: include/config/kernel.release FORCE |
| 1193 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1194 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
| 1194 | 1195 | ||
| 1195 | 1196 | ||
| 1196 | # Brief documentation of the typical targets used | 1197 | # Brief documentation of the typical targets used |
| 1197 | # --------------------------------------------------------------------------- | 1198 | # --------------------------------------------------------------------------- |
| 1198 | 1199 | ||
| 1199 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) | 1200 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
| 1200 | boards := $(notdir $(boards)) | 1201 | boards := $(notdir $(boards)) |
| 1201 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) | 1202 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) |
| 1202 | board-dirs := $(sort $(notdir $(board-dirs:/=))) | 1203 | board-dirs := $(sort $(notdir $(board-dirs:/=))) |
| 1203 | 1204 | ||
| 1204 | help: | 1205 | help: |
| 1205 | @echo 'Cleaning targets:' | 1206 | @echo 'Cleaning targets:' |
| 1206 | @echo ' clean - Remove most generated files but keep the config and' | 1207 | @echo ' clean - Remove most generated files but keep the config and' |
| 1207 | @echo ' enough build support to build external modules' | 1208 | @echo ' enough build support to build external modules' |
| 1208 | @echo ' mrproper - Remove all generated files + config + various backup files' | 1209 | @echo ' mrproper - Remove all generated files + config + various backup files' |
| 1209 | @echo ' distclean - mrproper + remove editor backup and patch files' | 1210 | @echo ' distclean - mrproper + remove editor backup and patch files' |
| 1210 | @echo '' | 1211 | @echo '' |
| 1211 | @echo 'Configuration targets:' | 1212 | @echo 'Configuration targets:' |
| 1212 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help | 1213 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help |
| 1213 | @echo '' | 1214 | @echo '' |
| 1214 | @echo 'Other generic targets:' | 1215 | @echo 'Other generic targets:' |
| 1215 | @echo ' all - Build all targets marked with [*]' | 1216 | @echo ' all - Build all targets marked with [*]' |
| 1216 | @echo '* vmlinux - Build the bare kernel' | 1217 | @echo '* vmlinux - Build the bare kernel' |
| 1217 | @echo '* modules - Build all modules' | 1218 | @echo '* modules - Build all modules' |
| 1218 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' | 1219 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
| 1219 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' | 1220 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' |
| 1220 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' | 1221 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
| 1221 | @echo ' dir/ - Build all files in dir and below' | 1222 | @echo ' dir/ - Build all files in dir and below' |
| 1222 | @echo ' dir/file.[oisS] - Build specified target only' | 1223 | @echo ' dir/file.[oisS] - Build specified target only' |
| 1223 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' | 1224 | @echo ' dir/file.lst - Build specified mixed source/assembly target only' |
| 1224 | @echo ' (requires a recent binutils and recent build (System.map))' | 1225 | @echo ' (requires a recent binutils and recent build (System.map))' |
| 1225 | @echo ' dir/file.ko - Build module including final link' | 1226 | @echo ' dir/file.ko - Build module including final link' |
| 1226 | @echo ' modules_prepare - Set up for building external modules' | 1227 | @echo ' modules_prepare - Set up for building external modules' |
| 1227 | @echo ' tags/TAGS - Generate tags file for editors' | 1228 | @echo ' tags/TAGS - Generate tags file for editors' |
| 1228 | @echo ' cscope - Generate cscope index' | 1229 | @echo ' cscope - Generate cscope index' |
| 1229 | @echo ' gtags - Generate GNU GLOBAL index' | 1230 | @echo ' gtags - Generate GNU GLOBAL index' |
| 1230 | @echo ' kernelrelease - Output the release version string' | 1231 | @echo ' kernelrelease - Output the release version string' |
| 1231 | @echo ' kernelversion - Output the version stored in Makefile' | 1232 | @echo ' kernelversion - Output the version stored in Makefile' |
| 1232 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ | 1233 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
| 1233 | echo ' (default: $(INSTALL_HDR_PATH))'; \ | 1234 | echo ' (default: $(INSTALL_HDR_PATH))'; \ |
| 1234 | echo '' | 1235 | echo '' |
| 1235 | @echo 'Static analysers' | 1236 | @echo 'Static analysers' |
| 1236 | @echo ' checkstack - Generate a list of stack hogs' | 1237 | @echo ' checkstack - Generate a list of stack hogs' |
| 1237 | @echo ' namespacecheck - Name space analysis on compiled kernel' | 1238 | @echo ' namespacecheck - Name space analysis on compiled kernel' |
| 1238 | @echo ' versioncheck - Sanity check on version.h usage' | 1239 | @echo ' versioncheck - Sanity check on version.h usage' |
| 1239 | @echo ' includecheck - Check for duplicate included header files' | 1240 | @echo ' includecheck - Check for duplicate included header files' |
| 1240 | @echo ' export_report - List the usages of all exported symbols' | 1241 | @echo ' export_report - List the usages of all exported symbols' |
| 1241 | @echo ' headers_check - Sanity check on exported headers' | 1242 | @echo ' headers_check - Sanity check on exported headers' |
| 1242 | @echo ' headerdep - Detect inclusion cycles in headers' | 1243 | @echo ' headerdep - Detect inclusion cycles in headers' |
| 1243 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help | 1244 | @$(MAKE) -f $(srctree)/scripts/Makefile.help checker-help |
| 1244 | @echo '' | 1245 | @echo '' |
| 1245 | @echo 'Kernel packaging:' | 1246 | @echo 'Kernel packaging:' |
| 1246 | @$(MAKE) $(build)=$(package-dir) help | 1247 | @$(MAKE) $(build)=$(package-dir) help |
| 1247 | @echo '' | 1248 | @echo '' |
| 1248 | @echo 'Documentation targets:' | 1249 | @echo 'Documentation targets:' |
| 1249 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp | 1250 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp |
| 1250 | @echo '' | 1251 | @echo '' |
| 1251 | @echo 'Architecture specific targets ($(SRCARCH)):' | 1252 | @echo 'Architecture specific targets ($(SRCARCH)):' |
| 1252 | @$(if $(archhelp),$(archhelp),\ | 1253 | @$(if $(archhelp),$(archhelp),\ |
| 1253 | echo ' No architecture specific help defined for $(SRCARCH)') | 1254 | echo ' No architecture specific help defined for $(SRCARCH)') |
| 1254 | @echo '' | 1255 | @echo '' |
| 1255 | @$(if $(boards), \ | 1256 | @$(if $(boards), \ |
| 1256 | $(foreach b, $(boards), \ | 1257 | $(foreach b, $(boards), \ |
| 1257 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ | 1258 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ |
| 1258 | echo '') | 1259 | echo '') |
| 1259 | @$(if $(board-dirs), \ | 1260 | @$(if $(board-dirs), \ |
| 1260 | $(foreach b, $(board-dirs), \ | 1261 | $(foreach b, $(board-dirs), \ |
| 1261 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ | 1262 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ |
| 1262 | printf " %-16s - Show all of the above\\n" help-boards; \ | 1263 | printf " %-16s - Show all of the above\\n" help-boards; \ |
| 1263 | echo '') | 1264 | echo '') |
| 1264 | 1265 | ||
| 1265 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' | 1266 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
| 1266 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' | 1267 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
| 1267 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' | 1268 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
| 1268 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' | 1269 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' |
| 1269 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' | 1270 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
| 1270 | @echo ' make W=1 [targets] Enable extra gcc checks' | 1271 | @echo ' make W=1 [targets] Enable extra gcc checks' |
| 1271 | @echo '' | 1272 | @echo '' |
| 1272 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' | 1273 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' |
| 1273 | @echo 'For further info see the ./README file' | 1274 | @echo 'For further info see the ./README file' |
| 1274 | 1275 | ||
| 1275 | 1276 | ||
| 1276 | help-board-dirs := $(addprefix help-,$(board-dirs)) | 1277 | help-board-dirs := $(addprefix help-,$(board-dirs)) |
| 1277 | 1278 | ||
| 1278 | help-boards: $(help-board-dirs) | 1279 | help-boards: $(help-board-dirs) |
| 1279 | 1280 | ||
| 1280 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) | 1281 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) |
| 1281 | 1282 | ||
| 1282 | $(help-board-dirs): help-%: | 1283 | $(help-board-dirs): help-%: |
| 1283 | @echo 'Architecture specific targets ($(SRCARCH) $*):' | 1284 | @echo 'Architecture specific targets ($(SRCARCH) $*):' |
| 1284 | @$(if $(boards-per-dir), \ | 1285 | @$(if $(boards-per-dir), \ |
| 1285 | $(foreach b, $(boards-per-dir), \ | 1286 | $(foreach b, $(boards-per-dir), \ |
| 1286 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ | 1287 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ |
| 1287 | echo '') | 1288 | echo '') |
| 1288 | 1289 | ||
| 1289 | 1290 | ||
| 1290 | # Documentation targets | 1291 | # Documentation targets |
| 1291 | # --------------------------------------------------------------------------- | 1292 | # --------------------------------------------------------------------------- |
| 1292 | %docs: scripts_basic FORCE | 1293 | %docs: scripts_basic FORCE |
| 1293 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ | 1294 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ |
| 1294 | 1295 | ||
| 1295 | else # KBUILD_EXTMOD | 1296 | else # KBUILD_EXTMOD |
| 1296 | 1297 | ||
| 1297 | ### | 1298 | ### |
| 1298 | # External module support. | 1299 | # External module support. |
| 1299 | # When building external modules the kernel used as basis is considered | 1300 | # When building external modules the kernel used as basis is considered |
| 1300 | # read-only, and no consistency checks are made and the make | 1301 | # read-only, and no consistency checks are made and the make |
| 1301 | # system is not used on the basis kernel. If updates are required | 1302 | # system is not used on the basis kernel. If updates are required |
| 1302 | # in the basis kernel ordinary make commands (without M=...) must | 1303 | # in the basis kernel ordinary make commands (without M=...) must |
| 1303 | # be used. | 1304 | # be used. |
| 1304 | # | 1305 | # |
| 1305 | # The following are the only valid targets when building external | 1306 | # The following are the only valid targets when building external |
| 1306 | # modules. | 1307 | # modules. |
| 1307 | # make M=dir clean Delete all automatically generated files | 1308 | # make M=dir clean Delete all automatically generated files |
| 1308 | # make M=dir modules Make all modules in specified dir | 1309 | # make M=dir modules Make all modules in specified dir |
| 1309 | # make M=dir Same as 'make M=dir modules' | 1310 | # make M=dir Same as 'make M=dir modules' |
| 1310 | # make M=dir modules_install | 1311 | # make M=dir modules_install |
| 1311 | # Install the modules built in the module directory | 1312 | # Install the modules built in the module directory |
| 1312 | # Assumes install directory is already created | 1313 | # Assumes install directory is already created |
| 1313 | 1314 | ||
| 1314 | # We are always building modules | 1315 | # We are always building modules |
| 1315 | KBUILD_MODULES := 1 | 1316 | KBUILD_MODULES := 1 |
| 1316 | PHONY += crmodverdir | 1317 | PHONY += crmodverdir |
| 1317 | crmodverdir: | 1318 | crmodverdir: |
| 1318 | $(cmd_crmodverdir) | 1319 | $(cmd_crmodverdir) |
| 1319 | 1320 | ||
| 1320 | PHONY += $(objtree)/Module.symvers | 1321 | PHONY += $(objtree)/Module.symvers |
| 1321 | $(objtree)/Module.symvers: | 1322 | $(objtree)/Module.symvers: |
| 1322 | @test -e $(objtree)/Module.symvers || ( \ | 1323 | @test -e $(objtree)/Module.symvers || ( \ |
| 1323 | echo; \ | 1324 | echo; \ |
| 1324 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ | 1325 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ |
| 1325 | echo " is missing; modules will have no dependencies and modversions."; \ | 1326 | echo " is missing; modules will have no dependencies and modversions."; \ |
| 1326 | echo ) | 1327 | echo ) |
| 1327 | 1328 | ||
| 1328 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) | 1329 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) |
| 1329 | PHONY += $(module-dirs) modules | 1330 | PHONY += $(module-dirs) modules |
| 1330 | $(module-dirs): crmodverdir $(objtree)/Module.symvers | 1331 | $(module-dirs): crmodverdir $(objtree)/Module.symvers |
| 1331 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) | 1332 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) |
| 1332 | 1333 | ||
| 1333 | modules: $(module-dirs) | 1334 | modules: $(module-dirs) |
| 1334 | @$(kecho) ' Building modules, stage 2.'; | 1335 | @$(kecho) ' Building modules, stage 2.'; |
| 1335 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1336 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1336 | 1337 | ||
| 1337 | PHONY += modules_install | 1338 | PHONY += modules_install |
| 1338 | modules_install: _emodinst_ _emodinst_post | 1339 | modules_install: _emodinst_ _emodinst_post |
| 1339 | 1340 | ||
| 1340 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) | 1341 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) |
| 1341 | PHONY += _emodinst_ | 1342 | PHONY += _emodinst_ |
| 1342 | _emodinst_: | 1343 | _emodinst_: |
| 1343 | $(Q)mkdir -p $(MODLIB)/$(install-dir) | 1344 | $(Q)mkdir -p $(MODLIB)/$(install-dir) |
| 1344 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1345 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
| 1345 | 1346 | ||
| 1346 | PHONY += _emodinst_post | 1347 | PHONY += _emodinst_post |
| 1347 | _emodinst_post: _emodinst_ | 1348 | _emodinst_post: _emodinst_ |
| 1348 | $(call cmd,depmod) | 1349 | $(call cmd,depmod) |
| 1349 | 1350 | ||
| 1350 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) | 1351 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
| 1351 | 1352 | ||
| 1352 | PHONY += $(clean-dirs) clean | 1353 | PHONY += $(clean-dirs) clean |
| 1353 | $(clean-dirs): | 1354 | $(clean-dirs): |
| 1354 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1355 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
| 1355 | 1356 | ||
| 1356 | clean: rm-dirs := $(MODVERDIR) | 1357 | clean: rm-dirs := $(MODVERDIR) |
| 1357 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers | 1358 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers |
| 1358 | 1359 | ||
| 1359 | help: | 1360 | help: |
| 1360 | @echo ' Building external modules.' | 1361 | @echo ' Building external modules.' |
| 1361 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' | 1362 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' |
| 1362 | @echo '' | 1363 | @echo '' |
| 1363 | @echo ' modules - default target, build the module(s)' | 1364 | @echo ' modules - default target, build the module(s)' |
| 1364 | @echo ' modules_install - install the module' | 1365 | @echo ' modules_install - install the module' |
| 1365 | @echo ' clean - remove generated files in module directory only' | 1366 | @echo ' clean - remove generated files in module directory only' |
| 1366 | @echo '' | 1367 | @echo '' |
| 1367 | 1368 | ||
| 1368 | # Dummies... | 1369 | # Dummies... |
| 1369 | PHONY += prepare scripts | 1370 | PHONY += prepare scripts |
| 1370 | prepare: ; | 1371 | prepare: ; |
| 1371 | scripts: ; | 1372 | scripts: ; |
| 1372 | endif # KBUILD_EXTMOD | 1373 | endif # KBUILD_EXTMOD |
| 1373 | 1374 | ||
| 1374 | clean: $(clean-dirs) | 1375 | clean: $(clean-dirs) |
| 1375 | $(call cmd,rmdirs) | 1376 | $(call cmd,rmdirs) |
| 1376 | $(call cmd,rmfiles) | 1377 | $(call cmd,rmfiles) |
| 1377 | @find $(or $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ | 1378 | @find $(or $(KBUILD_EXTMOD), .) $(RCS_FIND_IGNORE) \ |
| 1378 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1379 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
| 1379 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ | 1380 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
| 1380 | -o -name '*.symtypes' -o -name 'modules.order' \ | 1381 | -o -name '*.symtypes' -o -name 'modules.order' \ |
| 1381 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ | 1382 | -o -name modules.builtin -o -name '.tmp_*.o.*' \ |
| 1382 | -o -name '*.gcno' \) -type f -print | xargs rm -f | 1383 | -o -name '*.gcno' \) -type f -print | xargs rm -f |
| 1383 | 1384 | ||
| 1384 | # Generate tags for editors | 1385 | # Generate tags for editors |
| 1385 | # --------------------------------------------------------------------------- | 1386 | # --------------------------------------------------------------------------- |
| 1386 | quiet_cmd_tags = GEN $@ | 1387 | quiet_cmd_tags = GEN $@ |
| 1387 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ | 1388 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ |
| 1388 | 1389 | ||
| 1389 | tags TAGS cscope gtags: FORCE | 1390 | tags TAGS cscope gtags: FORCE |
| 1390 | $(call cmd,tags) | 1391 | $(call cmd,tags) |
| 1391 | 1392 | ||
| 1392 | # Scripts to check various things for consistency | 1393 | # Scripts to check various things for consistency |
| 1393 | # --------------------------------------------------------------------------- | 1394 | # --------------------------------------------------------------------------- |
| 1394 | 1395 | ||
| 1395 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report | 1396 | PHONY += includecheck versioncheck coccicheck namespacecheck export_report |
| 1396 | 1397 | ||
| 1397 | includecheck: | 1398 | includecheck: |
| 1398 | find * $(RCS_FIND_IGNORE) \ | 1399 | find * $(RCS_FIND_IGNORE) \ |
| 1399 | -name '*.[hcS]' -type f -print | sort \ | 1400 | -name '*.[hcS]' -type f -print | sort \ |
| 1400 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl | 1401 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
| 1401 | 1402 | ||
| 1402 | versioncheck: | 1403 | versioncheck: |
| 1403 | find * $(RCS_FIND_IGNORE) \ | 1404 | find * $(RCS_FIND_IGNORE) \ |
| 1404 | -name '*.[hcS]' -type f -print | sort \ | 1405 | -name '*.[hcS]' -type f -print | sort \ |
| 1405 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl | 1406 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
| 1406 | 1407 | ||
| 1407 | coccicheck: | 1408 | coccicheck: |
| 1408 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ | 1409 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/$@ |
| 1409 | 1410 | ||
| 1410 | namespacecheck: | 1411 | namespacecheck: |
| 1411 | $(PERL) $(srctree)/scripts/namespace.pl | 1412 | $(PERL) $(srctree)/scripts/namespace.pl |
| 1412 | 1413 | ||
| 1413 | export_report: | 1414 | export_report: |
| 1414 | $(PERL) $(srctree)/scripts/export_report.pl | 1415 | $(PERL) $(srctree)/scripts/export_report.pl |
| 1415 | 1416 | ||
| 1416 | endif #ifeq ($(config-targets),1) | 1417 | endif #ifeq ($(config-targets),1) |
| 1417 | endif #ifeq ($(mixed-targets),1) | 1418 | endif #ifeq ($(mixed-targets),1) |
| 1418 | 1419 | ||
| 1419 | PHONY += checkstack kernelrelease kernelversion | 1420 | PHONY += checkstack kernelrelease kernelversion |
| 1420 | 1421 | ||
| 1421 | # UML needs a little special treatment here. It wants to use the host | 1422 | # UML needs a little special treatment here. It wants to use the host |
| 1422 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone | 1423 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone |
| 1423 | # else wants $(ARCH), including people doing cross-builds, which means | 1424 | # else wants $(ARCH), including people doing cross-builds, which means |
| 1424 | # that $(SUBARCH) doesn't work here. | 1425 | # that $(SUBARCH) doesn't work here. |
| 1425 | ifeq ($(ARCH), um) | 1426 | ifeq ($(ARCH), um) |
| 1426 | CHECKSTACK_ARCH := $(SUBARCH) | 1427 | CHECKSTACK_ARCH := $(SUBARCH) |
| 1427 | else | 1428 | else |
| 1428 | CHECKSTACK_ARCH := $(ARCH) | 1429 | CHECKSTACK_ARCH := $(ARCH) |
| 1429 | endif | 1430 | endif |
| 1430 | checkstack: | 1431 | checkstack: |
| 1431 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ | 1432 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
| 1432 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) | 1433 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
| 1433 | 1434 | ||
| 1434 | kernelrelease: | 1435 | kernelrelease: |
| 1435 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" | 1436 | @echo "$(KERNELVERSION)$$($(CONFIG_SHELL) $(srctree)/scripts/setlocalversion $(srctree))" |
| 1436 | 1437 | ||
| 1437 | kernelversion: | 1438 | kernelversion: |
| 1438 | @echo $(KERNELVERSION) | 1439 | @echo $(KERNELVERSION) |
| 1439 | 1440 | ||
| 1440 | # Single targets | 1441 | # Single targets |
| 1441 | # --------------------------------------------------------------------------- | 1442 | # --------------------------------------------------------------------------- |
| 1442 | # Single targets are compatible with: | 1443 | # Single targets are compatible with: |
| 1443 | # - build with mixed source and output | 1444 | # - build with mixed source and output |
| 1444 | # - build with separate output dir 'make O=...' | 1445 | # - build with separate output dir 'make O=...' |
| 1445 | # - external modules | 1446 | # - external modules |
| 1446 | # | 1447 | # |
| 1447 | # target-dir => where to store outputfile | 1448 | # target-dir => where to store outputfile |
| 1448 | # build-dir => directory in kernel source tree to use | 1449 | # build-dir => directory in kernel source tree to use |
| 1449 | 1450 | ||
| 1450 | ifeq ($(KBUILD_EXTMOD),) | 1451 | ifeq ($(KBUILD_EXTMOD),) |
| 1451 | build-dir = $(patsubst %/,%,$(dir $@)) | 1452 | build-dir = $(patsubst %/,%,$(dir $@)) |
| 1452 | target-dir = $(dir $@) | 1453 | target-dir = $(dir $@) |
| 1453 | else | 1454 | else |
| 1454 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) | 1455 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) |
| 1455 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) | 1456 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) |
| 1456 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) | 1457 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) |
| 1457 | endif | 1458 | endif |
| 1458 | 1459 | ||
| 1459 | %.s: %.c prepare scripts FORCE | 1460 | %.s: %.c prepare scripts FORCE |
| 1460 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1461 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1461 | %.i: %.c prepare scripts FORCE | 1462 | %.i: %.c prepare scripts FORCE |
| 1462 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1463 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1463 | %.o: %.c prepare scripts FORCE | 1464 | %.o: %.c prepare scripts FORCE |
| 1464 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1465 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1465 | %.lst: %.c prepare scripts FORCE | 1466 | %.lst: %.c prepare scripts FORCE |
| 1466 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1467 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1467 | %.s: %.S prepare scripts FORCE | 1468 | %.s: %.S prepare scripts FORCE |
| 1468 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1469 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1469 | %.o: %.S prepare scripts FORCE | 1470 | %.o: %.S prepare scripts FORCE |
| 1470 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1471 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1471 | %.symtypes: %.c prepare scripts FORCE | 1472 | %.symtypes: %.c prepare scripts FORCE |
| 1472 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1473 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1473 | 1474 | ||
| 1474 | # Modules | 1475 | # Modules |
| 1475 | /: prepare scripts FORCE | 1476 | /: prepare scripts FORCE |
| 1476 | $(cmd_crmodverdir) | 1477 | $(cmd_crmodverdir) |
| 1477 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1478 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1478 | $(build)=$(build-dir) | 1479 | $(build)=$(build-dir) |
| 1479 | %/: prepare scripts FORCE | 1480 | %/: prepare scripts FORCE |
| 1480 | $(cmd_crmodverdir) | 1481 | $(cmd_crmodverdir) |
| 1481 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1482 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1482 | $(build)=$(build-dir) | 1483 | $(build)=$(build-dir) |
| 1483 | %.ko: prepare scripts FORCE | 1484 | %.ko: prepare scripts FORCE |
| 1484 | $(cmd_crmodverdir) | 1485 | $(cmd_crmodverdir) |
| 1485 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1486 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1486 | $(build)=$(build-dir) $(@:.ko=.o) | 1487 | $(build)=$(build-dir) $(@:.ko=.o) |
| 1487 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1488 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1488 | 1489 | ||
| 1489 | # FIXME Should go into a make.lib or something | 1490 | # FIXME Should go into a make.lib or something |
| 1490 | # =========================================================================== | 1491 | # =========================================================================== |
| 1491 | 1492 | ||
| 1492 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) | 1493 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) |
| 1493 | cmd_rmdirs = rm -rf $(rm-dirs) | 1494 | cmd_rmdirs = rm -rf $(rm-dirs) |
| 1494 | 1495 | ||
| 1495 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) | 1496 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) |
| 1496 | cmd_rmfiles = rm -f $(rm-files) | 1497 | cmd_rmfiles = rm -f $(rm-files) |
| 1497 | 1498 | ||
| 1498 | # Run depmod only if we have System.map and depmod is executable | 1499 | # Run depmod only if we have System.map and depmod is executable |
| 1499 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) | 1500 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) |
| 1500 | cmd_depmod = \ | 1501 | cmd_depmod = \ |
| 1501 | if [ -r System.map -a -x $(DEPMOD) ]; then \ | 1502 | if [ -r System.map -a -x $(DEPMOD) ]; then \ |
| 1502 | $(DEPMOD) -ae -F System.map \ | 1503 | $(DEPMOD) -ae -F System.map \ |
| 1503 | $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) ) \ | 1504 | $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) ) \ |
| 1504 | $(KERNELRELEASE); \ | 1505 | $(KERNELRELEASE); \ |
| 1505 | fi | 1506 | fi |
| 1506 | 1507 | ||
| 1507 | # Create temporary dir for module support files | 1508 | # Create temporary dir for module support files |
| 1508 | # clean it up only when building all modules | 1509 | # clean it up only when building all modules |
| 1509 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ | 1510 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ |
| 1510 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) | 1511 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
| 1511 | 1512 | ||
| 1512 | a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ | 1513 | a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ |
| 1513 | $(KBUILD_AFLAGS_KERNEL) \ | 1514 | $(KBUILD_AFLAGS_KERNEL) \ |
| 1514 | $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ | 1515 | $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ |
| 1515 | $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) | 1516 | $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) |
| 1516 | 1517 | ||
| 1517 | quiet_cmd_as_o_S = AS $@ | 1518 | quiet_cmd_as_o_S = AS $@ |
| 1518 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< | 1519 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< |
| 1519 | 1520 | ||
| 1520 | # read all saved command lines | 1521 | # read all saved command lines |
| 1521 | 1522 | ||
| 1522 | targets := $(wildcard $(sort $(targets))) | 1523 | targets := $(wildcard $(sort $(targets))) |
| 1523 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | 1524 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) |
| 1524 | 1525 | ||
| 1525 | ifneq ($(cmd_files),) | 1526 | ifneq ($(cmd_files),) |
| 1526 | $(cmd_files): ; # Do not try to update included dependency files | 1527 | $(cmd_files): ; # Do not try to update included dependency files |
| 1527 | include $(cmd_files) | 1528 | include $(cmd_files) |
| 1528 | endif | 1529 | endif |
| 1529 | 1530 | ||
| 1530 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir | 1531 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir |
| 1531 | # Usage: | 1532 | # Usage: |
| 1532 | # $(Q)$(MAKE) $(clean)=dir | 1533 | # $(Q)$(MAKE) $(clean)=dir |
| 1533 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj | 1534 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj |
| 1534 | 1535 | ||
| 1535 | endif # skip-makefile | 1536 | endif # skip-makefile |
| 1536 | 1537 | ||
| 1537 | PHONY += FORCE | 1538 | PHONY += FORCE |
| 1538 | FORCE: | 1539 | FORCE: |
| 1539 | 1540 | ||
| 1540 | # Declare the contents of the .PHONY variable as phony. We keep that | 1541 | # Declare the contents of the .PHONY variable as phony. We keep that |
| 1541 | # information in a variable so we can use it in if_changed and friends. | 1542 | # information in a variable so we can use it in if_changed and friends. |
| 1542 | .PHONY: $(PHONY) | 1543 | .PHONY: $(PHONY) |
| 1543 | 1544 |