Commit 003086497f07f7f1e67c0c295e261740f822b377
Committed by
Linus Torvalds
Linus Torvalds
1 parent
1db4b2d221
Exists in
master
and in
4 other branches
Build with -fno-dwarf2-cfi-asm
With a sufficiently new compiler and binutils, code which wasn't previously generating .eh_frame sections has begun to. Certain architectures (powerpc, in this case) may generate unexpected relocation formats in response to this, preventing modules from loading. While the new relocation types should probably be handled, revert to the previous behaviour with regards to generation of .eh_frame sections. (This was reported against Fedora, which appears to be the only distro doing any building against gcc-4.4 at present: RH bz#486545.) Signed-off-by: Kyle McMartin <kyle@redhat.com> Acked-by: Roland McGrath <roland@redhat.com> Cc: Alexandre Oliva <aoliva@redhat.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Showing 1 changed file with 3 additions and 0 deletions Inline Diff
Makefile
| 1 | VERSION = 2 | 1 | VERSION = 2 |
| 2 | PATCHLEVEL = 6 | 2 | PATCHLEVEL = 6 |
| 3 | SUBLEVEL = 29 | 3 | SUBLEVEL = 29 |
| 4 | EXTRAVERSION = -rc8 | 4 | EXTRAVERSION = -rc8 |
| 5 | NAME = Erotic Pickled Herring | 5 | NAME = Erotic Pickled Herring |
| 6 | 6 | ||
| 7 | # *DOCUMENTATION* | 7 | # *DOCUMENTATION* |
| 8 | # To see a list of typical targets execute "make help" | 8 | # To see a list of typical targets execute "make help" |
| 9 | # More info can be located in ./README | 9 | # More info can be located in ./README |
| 10 | # Comments in this file are targeted only to the developer, do not | 10 | # Comments in this file are targeted only to the developer, do not |
| 11 | # expect to learn how to build the kernel reading this file. | 11 | # expect to learn how to build the kernel reading this file. |
| 12 | 12 | ||
| 13 | # Do not: | 13 | # Do not: |
| 14 | # o use make's built-in rules and variables | 14 | # o use make's built-in rules and variables |
| 15 | # (this increases performance and avoids hard-to-debug behaviour); | 15 | # (this increases performance and avoids hard-to-debug behaviour); |
| 16 | # o print "Entering directory ..."; | 16 | # o print "Entering directory ..."; |
| 17 | MAKEFLAGS += -rR --no-print-directory | 17 | MAKEFLAGS += -rR --no-print-directory |
| 18 | 18 | ||
| 19 | # We are using a recursive build, so we need to do a little thinking | 19 | # We are using a recursive build, so we need to do a little thinking |
| 20 | # to get the ordering right. | 20 | # to get the ordering right. |
| 21 | # | 21 | # |
| 22 | # Most importantly: sub-Makefiles should only ever modify files in | 22 | # Most importantly: sub-Makefiles should only ever modify files in |
| 23 | # their own directory. If in some directory we have a dependency on | 23 | # their own directory. If in some directory we have a dependency on |
| 24 | # a file in another dir (which doesn't happen often, but it's often | 24 | # a file in another dir (which doesn't happen often, but it's often |
| 25 | # unavoidable when linking the built-in.o targets which finally | 25 | # unavoidable when linking the built-in.o targets which finally |
| 26 | # turn into vmlinux), we will call a sub make in that other dir, and | 26 | # turn into vmlinux), we will call a sub make in that other dir, and |
| 27 | # after that we are sure that everything which is in that other dir | 27 | # after that we are sure that everything which is in that other dir |
| 28 | # is now up to date. | 28 | # is now up to date. |
| 29 | # | 29 | # |
| 30 | # The only cases where we need to modify files which have global | 30 | # The only cases where we need to modify files which have global |
| 31 | # effects are thus separated out and done before the recursive | 31 | # effects are thus separated out and done before the recursive |
| 32 | # descending is started. They are now explicitly listed as the | 32 | # descending is started. They are now explicitly listed as the |
| 33 | # prepare rule. | 33 | # prepare rule. |
| 34 | 34 | ||
| 35 | # To put more focus on warnings, be less verbose as default | 35 | # To put more focus on warnings, be less verbose as default |
| 36 | # Use 'make V=1' to see the full commands | 36 | # Use 'make V=1' to see the full commands |
| 37 | 37 | ||
| 38 | ifdef V | 38 | ifdef V |
| 39 | ifeq ("$(origin V)", "command line") | 39 | ifeq ("$(origin V)", "command line") |
| 40 | KBUILD_VERBOSE = $(V) | 40 | KBUILD_VERBOSE = $(V) |
| 41 | endif | 41 | endif |
| 42 | endif | 42 | endif |
| 43 | ifndef KBUILD_VERBOSE | 43 | ifndef KBUILD_VERBOSE |
| 44 | KBUILD_VERBOSE = 0 | 44 | KBUILD_VERBOSE = 0 |
| 45 | endif | 45 | endif |
| 46 | 46 | ||
| 47 | # Call a source code checker (by default, "sparse") as part of the | 47 | # Call a source code checker (by default, "sparse") as part of the |
| 48 | # C compilation. | 48 | # C compilation. |
| 49 | # | 49 | # |
| 50 | # Use 'make C=1' to enable checking of only re-compiled files. | 50 | # Use 'make C=1' to enable checking of only re-compiled files. |
| 51 | # Use 'make C=2' to enable checking of *all* source files, regardless | 51 | # Use 'make C=2' to enable checking of *all* source files, regardless |
| 52 | # of whether they are re-compiled or not. | 52 | # of whether they are re-compiled or not. |
| 53 | # | 53 | # |
| 54 | # See the file "Documentation/sparse.txt" for more details, including | 54 | # See the file "Documentation/sparse.txt" for more details, including |
| 55 | # where to get the "sparse" utility. | 55 | # where to get the "sparse" utility. |
| 56 | 56 | ||
| 57 | ifdef C | 57 | ifdef C |
| 58 | ifeq ("$(origin C)", "command line") | 58 | ifeq ("$(origin C)", "command line") |
| 59 | KBUILD_CHECKSRC = $(C) | 59 | KBUILD_CHECKSRC = $(C) |
| 60 | endif | 60 | endif |
| 61 | endif | 61 | endif |
| 62 | ifndef KBUILD_CHECKSRC | 62 | ifndef KBUILD_CHECKSRC |
| 63 | KBUILD_CHECKSRC = 0 | 63 | KBUILD_CHECKSRC = 0 |
| 64 | endif | 64 | endif |
| 65 | 65 | ||
| 66 | # Use make M=dir to specify directory of external module to build | 66 | # Use make M=dir to specify directory of external module to build |
| 67 | # Old syntax make ... SUBDIRS=$PWD is still supported | 67 | # Old syntax make ... SUBDIRS=$PWD is still supported |
| 68 | # Setting the environment variable KBUILD_EXTMOD take precedence | 68 | # Setting the environment variable KBUILD_EXTMOD take precedence |
| 69 | ifdef SUBDIRS | 69 | ifdef SUBDIRS |
| 70 | KBUILD_EXTMOD ?= $(SUBDIRS) | 70 | KBUILD_EXTMOD ?= $(SUBDIRS) |
| 71 | endif | 71 | endif |
| 72 | ifdef M | 72 | ifdef M |
| 73 | ifeq ("$(origin M)", "command line") | 73 | ifeq ("$(origin M)", "command line") |
| 74 | KBUILD_EXTMOD := $(M) | 74 | KBUILD_EXTMOD := $(M) |
| 75 | endif | 75 | endif |
| 76 | endif | 76 | endif |
| 77 | 77 | ||
| 78 | 78 | ||
| 79 | # kbuild supports saving output files in a separate directory. | 79 | # kbuild supports saving output files in a separate directory. |
| 80 | # To locate output files in a separate directory two syntaxes are supported. | 80 | # To locate output files in a separate directory two syntaxes are supported. |
| 81 | # In both cases the working directory must be the root of the kernel src. | 81 | # In both cases the working directory must be the root of the kernel src. |
| 82 | # 1) O= | 82 | # 1) O= |
| 83 | # Use "make O=dir/to/store/output/files/" | 83 | # Use "make O=dir/to/store/output/files/" |
| 84 | # | 84 | # |
| 85 | # 2) Set KBUILD_OUTPUT | 85 | # 2) Set KBUILD_OUTPUT |
| 86 | # Set the environment variable KBUILD_OUTPUT to point to the directory | 86 | # Set the environment variable KBUILD_OUTPUT to point to the directory |
| 87 | # where the output files shall be placed. | 87 | # where the output files shall be placed. |
| 88 | # export KBUILD_OUTPUT=dir/to/store/output/files/ | 88 | # export KBUILD_OUTPUT=dir/to/store/output/files/ |
| 89 | # make | 89 | # make |
| 90 | # | 90 | # |
| 91 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment | 91 | # The O= assignment takes precedence over the KBUILD_OUTPUT environment |
| 92 | # variable. | 92 | # variable. |
| 93 | 93 | ||
| 94 | 94 | ||
| 95 | # KBUILD_SRC is set on invocation of make in OBJ directory | 95 | # KBUILD_SRC is set on invocation of make in OBJ directory |
| 96 | # KBUILD_SRC is not intended to be used by the regular user (for now) | 96 | # KBUILD_SRC is not intended to be used by the regular user (for now) |
| 97 | ifeq ($(KBUILD_SRC),) | 97 | ifeq ($(KBUILD_SRC),) |
| 98 | 98 | ||
| 99 | # OK, Make called in directory where kernel src resides | 99 | # OK, Make called in directory where kernel src resides |
| 100 | # Do we want to locate output files in a separate directory? | 100 | # Do we want to locate output files in a separate directory? |
| 101 | ifdef O | 101 | ifdef O |
| 102 | ifeq ("$(origin O)", "command line") | 102 | ifeq ("$(origin O)", "command line") |
| 103 | KBUILD_OUTPUT := $(O) | 103 | KBUILD_OUTPUT := $(O) |
| 104 | endif | 104 | endif |
| 105 | endif | 105 | endif |
| 106 | 106 | ||
| 107 | # That's our default target when none is given on the command line | 107 | # That's our default target when none is given on the command line |
| 108 | PHONY := _all | 108 | PHONY := _all |
| 109 | _all: | 109 | _all: |
| 110 | 110 | ||
| 111 | # Cancel implicit rules on top Makefile | 111 | # Cancel implicit rules on top Makefile |
| 112 | $(CURDIR)/Makefile Makefile: ; | 112 | $(CURDIR)/Makefile Makefile: ; |
| 113 | 113 | ||
| 114 | ifneq ($(KBUILD_OUTPUT),) | 114 | ifneq ($(KBUILD_OUTPUT),) |
| 115 | # Invoke a second make in the output directory, passing relevant variables | 115 | # Invoke a second make in the output directory, passing relevant variables |
| 116 | # check that the output directory actually exists | 116 | # check that the output directory actually exists |
| 117 | saved-output := $(KBUILD_OUTPUT) | 117 | saved-output := $(KBUILD_OUTPUT) |
| 118 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) | 118 | KBUILD_OUTPUT := $(shell cd $(KBUILD_OUTPUT) && /bin/pwd) |
| 119 | $(if $(KBUILD_OUTPUT),, \ | 119 | $(if $(KBUILD_OUTPUT),, \ |
| 120 | $(error output directory "$(saved-output)" does not exist)) | 120 | $(error output directory "$(saved-output)" does not exist)) |
| 121 | 121 | ||
| 122 | PHONY += $(MAKECMDGOALS) sub-make | 122 | PHONY += $(MAKECMDGOALS) sub-make |
| 123 | 123 | ||
| 124 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make | 124 | $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make |
| 125 | $(Q)@: | 125 | $(Q)@: |
| 126 | 126 | ||
| 127 | sub-make: FORCE | 127 | sub-make: FORCE |
| 128 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ | 128 | $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \ |
| 129 | KBUILD_SRC=$(CURDIR) \ | 129 | KBUILD_SRC=$(CURDIR) \ |
| 130 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ | 130 | KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \ |
| 131 | $(filter-out _all sub-make,$(MAKECMDGOALS)) | 131 | $(filter-out _all sub-make,$(MAKECMDGOALS)) |
| 132 | 132 | ||
| 133 | # Leave processing to above invocation of make | 133 | # Leave processing to above invocation of make |
| 134 | skip-makefile := 1 | 134 | skip-makefile := 1 |
| 135 | endif # ifneq ($(KBUILD_OUTPUT),) | 135 | endif # ifneq ($(KBUILD_OUTPUT),) |
| 136 | endif # ifeq ($(KBUILD_SRC),) | 136 | endif # ifeq ($(KBUILD_SRC),) |
| 137 | 137 | ||
| 138 | # We process the rest of the Makefile if this is the final invocation of make | 138 | # We process the rest of the Makefile if this is the final invocation of make |
| 139 | ifeq ($(skip-makefile),) | 139 | ifeq ($(skip-makefile),) |
| 140 | 140 | ||
| 141 | # If building an external module we do not care about the all: rule | 141 | # If building an external module we do not care about the all: rule |
| 142 | # but instead _all depend on modules | 142 | # but instead _all depend on modules |
| 143 | PHONY += all | 143 | PHONY += all |
| 144 | ifeq ($(KBUILD_EXTMOD),) | 144 | ifeq ($(KBUILD_EXTMOD),) |
| 145 | _all: all | 145 | _all: all |
| 146 | else | 146 | else |
| 147 | _all: modules | 147 | _all: modules |
| 148 | endif | 148 | endif |
| 149 | 149 | ||
| 150 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) | 150 | srctree := $(if $(KBUILD_SRC),$(KBUILD_SRC),$(CURDIR)) |
| 151 | TOPDIR := $(srctree) | 151 | TOPDIR := $(srctree) |
| 152 | # FIXME - TOPDIR is obsolete, use srctree/objtree | 152 | # FIXME - TOPDIR is obsolete, use srctree/objtree |
| 153 | objtree := $(CURDIR) | 153 | objtree := $(CURDIR) |
| 154 | src := $(srctree) | 154 | src := $(srctree) |
| 155 | obj := $(objtree) | 155 | obj := $(objtree) |
| 156 | 156 | ||
| 157 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) | 157 | VPATH := $(srctree)$(if $(KBUILD_EXTMOD),:$(KBUILD_EXTMOD)) |
| 158 | 158 | ||
| 159 | export srctree objtree VPATH TOPDIR | 159 | export srctree objtree VPATH TOPDIR |
| 160 | 160 | ||
| 161 | 161 | ||
| 162 | # SUBARCH tells the usermode build what the underlying arch is. That is set | 162 | # SUBARCH tells the usermode build what the underlying arch is. That is set |
| 163 | # first, and if a usermode build is happening, the "ARCH=um" on the command | 163 | # first, and if a usermode build is happening, the "ARCH=um" on the command |
| 164 | # line overrides the setting of ARCH below. If a native build is happening, | 164 | # line overrides the setting of ARCH below. If a native build is happening, |
| 165 | # then ARCH is assigned, getting whatever value it gets normally, and | 165 | # then ARCH is assigned, getting whatever value it gets normally, and |
| 166 | # SUBARCH is subsequently ignored. | 166 | # SUBARCH is subsequently ignored. |
| 167 | 167 | ||
| 168 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ | 168 | SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \ |
| 169 | -e s/arm.*/arm/ -e s/sa110/arm/ \ | 169 | -e s/arm.*/arm/ -e s/sa110/arm/ \ |
| 170 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ | 170 | -e s/s390x/s390/ -e s/parisc64/parisc/ \ |
| 171 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ | 171 | -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \ |
| 172 | -e s/sh.*/sh/ ) | 172 | -e s/sh.*/sh/ ) |
| 173 | 173 | ||
| 174 | # Cross compiling and selecting different set of gcc/bin-utils | 174 | # Cross compiling and selecting different set of gcc/bin-utils |
| 175 | # --------------------------------------------------------------------------- | 175 | # --------------------------------------------------------------------------- |
| 176 | # | 176 | # |
| 177 | # When performing cross compilation for other architectures ARCH shall be set | 177 | # When performing cross compilation for other architectures ARCH shall be set |
| 178 | # to the target architecture. (See arch/* for the possibilities). | 178 | # to the target architecture. (See arch/* for the possibilities). |
| 179 | # ARCH can be set during invocation of make: | 179 | # ARCH can be set during invocation of make: |
| 180 | # make ARCH=ia64 | 180 | # make ARCH=ia64 |
| 181 | # Another way is to have ARCH set in the environment. | 181 | # Another way is to have ARCH set in the environment. |
| 182 | # The default ARCH is the host where make is executed. | 182 | # The default ARCH is the host where make is executed. |
| 183 | 183 | ||
| 184 | # CROSS_COMPILE specify the prefix used for all executables used | 184 | # CROSS_COMPILE specify the prefix used for all executables used |
| 185 | # during compilation. Only gcc and related bin-utils executables | 185 | # during compilation. Only gcc and related bin-utils executables |
| 186 | # are prefixed with $(CROSS_COMPILE). | 186 | # are prefixed with $(CROSS_COMPILE). |
| 187 | # CROSS_COMPILE can be set on the command line | 187 | # CROSS_COMPILE can be set on the command line |
| 188 | # make CROSS_COMPILE=ia64-linux- | 188 | # make CROSS_COMPILE=ia64-linux- |
| 189 | # Alternatively CROSS_COMPILE can be set in the environment. | 189 | # Alternatively CROSS_COMPILE can be set in the environment. |
| 190 | # Default value for CROSS_COMPILE is not to prefix executables | 190 | # Default value for CROSS_COMPILE is not to prefix executables |
| 191 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile | 191 | # Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile |
| 192 | export KBUILD_BUILDHOST := $(SUBARCH) | 192 | export KBUILD_BUILDHOST := $(SUBARCH) |
| 193 | ARCH ?= $(SUBARCH) | 193 | ARCH ?= $(SUBARCH) |
| 194 | CROSS_COMPILE ?= | 194 | CROSS_COMPILE ?= |
| 195 | 195 | ||
| 196 | # Architecture as present in compile.h | 196 | # Architecture as present in compile.h |
| 197 | UTS_MACHINE := $(ARCH) | 197 | UTS_MACHINE := $(ARCH) |
| 198 | SRCARCH := $(ARCH) | 198 | SRCARCH := $(ARCH) |
| 199 | 199 | ||
| 200 | # Additional ARCH settings for x86 | 200 | # Additional ARCH settings for x86 |
| 201 | ifeq ($(ARCH),i386) | 201 | ifeq ($(ARCH),i386) |
| 202 | SRCARCH := x86 | 202 | SRCARCH := x86 |
| 203 | endif | 203 | endif |
| 204 | ifeq ($(ARCH),x86_64) | 204 | ifeq ($(ARCH),x86_64) |
| 205 | SRCARCH := x86 | 205 | SRCARCH := x86 |
| 206 | endif | 206 | endif |
| 207 | 207 | ||
| 208 | # Additional ARCH settings for sparc | 208 | # Additional ARCH settings for sparc |
| 209 | ifeq ($(ARCH),sparc64) | 209 | ifeq ($(ARCH),sparc64) |
| 210 | SRCARCH := sparc | 210 | SRCARCH := sparc |
| 211 | endif | 211 | endif |
| 212 | 212 | ||
| 213 | # Where to locate arch specific headers | 213 | # Where to locate arch specific headers |
| 214 | hdr-arch := $(SRCARCH) | 214 | hdr-arch := $(SRCARCH) |
| 215 | 215 | ||
| 216 | ifeq ($(ARCH),m68knommu) | 216 | ifeq ($(ARCH),m68knommu) |
| 217 | hdr-arch := m68k | 217 | hdr-arch := m68k |
| 218 | endif | 218 | endif |
| 219 | 219 | ||
| 220 | KCONFIG_CONFIG ?= .config | 220 | KCONFIG_CONFIG ?= .config |
| 221 | 221 | ||
| 222 | # SHELL used by kbuild | 222 | # SHELL used by kbuild |
| 223 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ | 223 | CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ |
| 224 | else if [ -x /bin/bash ]; then echo /bin/bash; \ | 224 | else if [ -x /bin/bash ]; then echo /bin/bash; \ |
| 225 | else echo sh; fi ; fi) | 225 | else echo sh; fi ; fi) |
| 226 | 226 | ||
| 227 | HOSTCC = gcc | 227 | HOSTCC = gcc |
| 228 | HOSTCXX = g++ | 228 | HOSTCXX = g++ |
| 229 | HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer | 229 | HOSTCFLAGS = -Wall -Wstrict-prototypes -O2 -fomit-frame-pointer |
| 230 | HOSTCXXFLAGS = -O2 | 230 | HOSTCXXFLAGS = -O2 |
| 231 | 231 | ||
| 232 | # Decide whether to build built-in, modular, or both. | 232 | # Decide whether to build built-in, modular, or both. |
| 233 | # Normally, just do built-in. | 233 | # Normally, just do built-in. |
| 234 | 234 | ||
| 235 | KBUILD_MODULES := | 235 | KBUILD_MODULES := |
| 236 | KBUILD_BUILTIN := 1 | 236 | KBUILD_BUILTIN := 1 |
| 237 | 237 | ||
| 238 | # If we have only "make modules", don't compile built-in objects. | 238 | # If we have only "make modules", don't compile built-in objects. |
| 239 | # When we're building modules with modversions, we need to consider | 239 | # When we're building modules with modversions, we need to consider |
| 240 | # the built-in objects during the descend as well, in order to | 240 | # the built-in objects during the descend as well, in order to |
| 241 | # make sure the checksums are up to date before we record them. | 241 | # make sure the checksums are up to date before we record them. |
| 242 | 242 | ||
| 243 | ifeq ($(MAKECMDGOALS),modules) | 243 | ifeq ($(MAKECMDGOALS),modules) |
| 244 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) | 244 | KBUILD_BUILTIN := $(if $(CONFIG_MODVERSIONS),1) |
| 245 | endif | 245 | endif |
| 246 | 246 | ||
| 247 | # If we have "make <whatever> modules", compile modules | 247 | # If we have "make <whatever> modules", compile modules |
| 248 | # in addition to whatever we do anyway. | 248 | # in addition to whatever we do anyway. |
| 249 | # Just "make" or "make all" shall build modules as well | 249 | # Just "make" or "make all" shall build modules as well |
| 250 | 250 | ||
| 251 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) | 251 | ifneq ($(filter all _all modules,$(MAKECMDGOALS)),) |
| 252 | KBUILD_MODULES := 1 | 252 | KBUILD_MODULES := 1 |
| 253 | endif | 253 | endif |
| 254 | 254 | ||
| 255 | ifeq ($(MAKECMDGOALS),) | 255 | ifeq ($(MAKECMDGOALS),) |
| 256 | KBUILD_MODULES := 1 | 256 | KBUILD_MODULES := 1 |
| 257 | endif | 257 | endif |
| 258 | 258 | ||
| 259 | export KBUILD_MODULES KBUILD_BUILTIN | 259 | export KBUILD_MODULES KBUILD_BUILTIN |
| 260 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD | 260 | export KBUILD_CHECKSRC KBUILD_SRC KBUILD_EXTMOD |
| 261 | 261 | ||
| 262 | # Beautify output | 262 | # Beautify output |
| 263 | # --------------------------------------------------------------------------- | 263 | # --------------------------------------------------------------------------- |
| 264 | # | 264 | # |
| 265 | # Normally, we echo the whole command before executing it. By making | 265 | # Normally, we echo the whole command before executing it. By making |
| 266 | # that echo $($(quiet)$(cmd)), we now have the possibility to set | 266 | # that echo $($(quiet)$(cmd)), we now have the possibility to set |
| 267 | # $(quiet) to choose other forms of output instead, e.g. | 267 | # $(quiet) to choose other forms of output instead, e.g. |
| 268 | # | 268 | # |
| 269 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ | 269 | # quiet_cmd_cc_o_c = Compiling $(RELDIR)/$@ |
| 270 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< | 270 | # cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< |
| 271 | # | 271 | # |
| 272 | # If $(quiet) is empty, the whole command will be printed. | 272 | # If $(quiet) is empty, the whole command will be printed. |
| 273 | # If it is set to "quiet_", only the short version will be printed. | 273 | # If it is set to "quiet_", only the short version will be printed. |
| 274 | # If it is set to "silent_", nothing will be printed at all, since | 274 | # If it is set to "silent_", nothing will be printed at all, since |
| 275 | # the variable $(silent_cmd_cc_o_c) doesn't exist. | 275 | # the variable $(silent_cmd_cc_o_c) doesn't exist. |
| 276 | # | 276 | # |
| 277 | # A simple variant is to prefix commands with $(Q) - that's useful | 277 | # A simple variant is to prefix commands with $(Q) - that's useful |
| 278 | # for commands that shall be hidden in non-verbose mode. | 278 | # for commands that shall be hidden in non-verbose mode. |
| 279 | # | 279 | # |
| 280 | # $(Q)ln $@ :< | 280 | # $(Q)ln $@ :< |
| 281 | # | 281 | # |
| 282 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. | 282 | # If KBUILD_VERBOSE equals 0 then the above command will be hidden. |
| 283 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. | 283 | # If KBUILD_VERBOSE equals 1 then the above command is displayed. |
| 284 | 284 | ||
| 285 | ifeq ($(KBUILD_VERBOSE),1) | 285 | ifeq ($(KBUILD_VERBOSE),1) |
| 286 | quiet = | 286 | quiet = |
| 287 | Q = | 287 | Q = |
| 288 | else | 288 | else |
| 289 | quiet=quiet_ | 289 | quiet=quiet_ |
| 290 | Q = @ | 290 | Q = @ |
| 291 | endif | 291 | endif |
| 292 | 292 | ||
| 293 | # If the user is running make -s (silent mode), suppress echoing of | 293 | # If the user is running make -s (silent mode), suppress echoing of |
| 294 | # commands | 294 | # commands |
| 295 | 295 | ||
| 296 | ifneq ($(findstring s,$(MAKEFLAGS)),) | 296 | ifneq ($(findstring s,$(MAKEFLAGS)),) |
| 297 | quiet=silent_ | 297 | quiet=silent_ |
| 298 | endif | 298 | endif |
| 299 | 299 | ||
| 300 | export quiet Q KBUILD_VERBOSE | 300 | export quiet Q KBUILD_VERBOSE |
| 301 | 301 | ||
| 302 | 302 | ||
| 303 | # Look for make include files relative to root of kernel src | 303 | # Look for make include files relative to root of kernel src |
| 304 | MAKEFLAGS += --include-dir=$(srctree) | 304 | MAKEFLAGS += --include-dir=$(srctree) |
| 305 | 305 | ||
| 306 | # We need some generic definitions (do not try to remake the file). | 306 | # We need some generic definitions (do not try to remake the file). |
| 307 | $(srctree)/scripts/Kbuild.include: ; | 307 | $(srctree)/scripts/Kbuild.include: ; |
| 308 | include $(srctree)/scripts/Kbuild.include | 308 | include $(srctree)/scripts/Kbuild.include |
| 309 | 309 | ||
| 310 | # Make variables (CC, etc...) | 310 | # Make variables (CC, etc...) |
| 311 | 311 | ||
| 312 | AS = $(CROSS_COMPILE)as | 312 | AS = $(CROSS_COMPILE)as |
| 313 | LD = $(CROSS_COMPILE)ld | 313 | LD = $(CROSS_COMPILE)ld |
| 314 | CC = $(CROSS_COMPILE)gcc | 314 | CC = $(CROSS_COMPILE)gcc |
| 315 | CPP = $(CC) -E | 315 | CPP = $(CC) -E |
| 316 | AR = $(CROSS_COMPILE)ar | 316 | AR = $(CROSS_COMPILE)ar |
| 317 | NM = $(CROSS_COMPILE)nm | 317 | NM = $(CROSS_COMPILE)nm |
| 318 | STRIP = $(CROSS_COMPILE)strip | 318 | STRIP = $(CROSS_COMPILE)strip |
| 319 | OBJCOPY = $(CROSS_COMPILE)objcopy | 319 | OBJCOPY = $(CROSS_COMPILE)objcopy |
| 320 | OBJDUMP = $(CROSS_COMPILE)objdump | 320 | OBJDUMP = $(CROSS_COMPILE)objdump |
| 321 | AWK = awk | 321 | AWK = awk |
| 322 | GENKSYMS = scripts/genksyms/genksyms | 322 | GENKSYMS = scripts/genksyms/genksyms |
| 323 | DEPMOD = /sbin/depmod | 323 | DEPMOD = /sbin/depmod |
| 324 | KALLSYMS = scripts/kallsyms | 324 | KALLSYMS = scripts/kallsyms |
| 325 | PERL = perl | 325 | PERL = perl |
| 326 | CHECK = sparse | 326 | CHECK = sparse |
| 327 | 327 | ||
| 328 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ | 328 | CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \ |
| 329 | -Wbitwise -Wno-return-void $(CF) | 329 | -Wbitwise -Wno-return-void $(CF) |
| 330 | MODFLAGS = -DMODULE | 330 | MODFLAGS = -DMODULE |
| 331 | CFLAGS_MODULE = $(MODFLAGS) | 331 | CFLAGS_MODULE = $(MODFLAGS) |
| 332 | AFLAGS_MODULE = $(MODFLAGS) | 332 | AFLAGS_MODULE = $(MODFLAGS) |
| 333 | LDFLAGS_MODULE = | 333 | LDFLAGS_MODULE = |
| 334 | CFLAGS_KERNEL = | 334 | CFLAGS_KERNEL = |
| 335 | AFLAGS_KERNEL = | 335 | AFLAGS_KERNEL = |
| 336 | 336 | ||
| 337 | 337 | ||
| 338 | # Use LINUXINCLUDE when you must reference the include/ directory. | 338 | # Use LINUXINCLUDE when you must reference the include/ directory. |
| 339 | # Needed to be compatible with the O= option | 339 | # Needed to be compatible with the O= option |
| 340 | LINUXINCLUDE := -Iinclude \ | 340 | LINUXINCLUDE := -Iinclude \ |
| 341 | $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ | 341 | $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \ |
| 342 | -I$(srctree)/arch/$(hdr-arch)/include \ | 342 | -I$(srctree)/arch/$(hdr-arch)/include \ |
| 343 | -include include/linux/autoconf.h | 343 | -include include/linux/autoconf.h |
| 344 | 344 | ||
| 345 | KBUILD_CPPFLAGS := -D__KERNEL__ | 345 | KBUILD_CPPFLAGS := -D__KERNEL__ |
| 346 | 346 | ||
| 347 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ | 347 | KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ |
| 348 | -fno-strict-aliasing -fno-common \ | 348 | -fno-strict-aliasing -fno-common \ |
| 349 | -Werror-implicit-function-declaration | 349 | -Werror-implicit-function-declaration |
| 350 | KBUILD_AFLAGS := -D__ASSEMBLY__ | 350 | KBUILD_AFLAGS := -D__ASSEMBLY__ |
| 351 | 351 | ||
| 352 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) | 352 | # Read KERNELRELEASE from include/config/kernel.release (if it exists) |
| 353 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) | 353 | KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null) |
| 354 | KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) | 354 | KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION) |
| 355 | 355 | ||
| 356 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION | 356 | export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION |
| 357 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC | 357 | export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC |
| 358 | export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE | 358 | export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE |
| 359 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS | 359 | export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS |
| 360 | 360 | ||
| 361 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS | 361 | export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS |
| 362 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE | 362 | export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE |
| 363 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE | 363 | export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE |
| 364 | 364 | ||
| 365 | # When compiling out-of-tree modules, put MODVERDIR in the module | 365 | # When compiling out-of-tree modules, put MODVERDIR in the module |
| 366 | # tree rather than in the kernel tree. The kernel tree might | 366 | # tree rather than in the kernel tree. The kernel tree might |
| 367 | # even be read-only. | 367 | # even be read-only. |
| 368 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions | 368 | export MODVERDIR := $(if $(KBUILD_EXTMOD),$(firstword $(KBUILD_EXTMOD))/).tmp_versions |
| 369 | 369 | ||
| 370 | # Files to ignore in find ... statements | 370 | # Files to ignore in find ... statements |
| 371 | 371 | ||
| 372 | RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o | 372 | RCS_FIND_IGNORE := \( -name SCCS -o -name BitKeeper -o -name .svn -o -name CVS -o -name .pc -o -name .hg -o -name .git \) -prune -o |
| 373 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git | 373 | export RCS_TAR_IGNORE := --exclude SCCS --exclude BitKeeper --exclude .svn --exclude CVS --exclude .pc --exclude .hg --exclude .git |
| 374 | 374 | ||
| 375 | # =========================================================================== | 375 | # =========================================================================== |
| 376 | # Rules shared between *config targets and build targets | 376 | # Rules shared between *config targets and build targets |
| 377 | 377 | ||
| 378 | # Basic helpers built in scripts/ | 378 | # Basic helpers built in scripts/ |
| 379 | PHONY += scripts_basic | 379 | PHONY += scripts_basic |
| 380 | scripts_basic: | 380 | scripts_basic: |
| 381 | $(Q)$(MAKE) $(build)=scripts/basic | 381 | $(Q)$(MAKE) $(build)=scripts/basic |
| 382 | 382 | ||
| 383 | # To avoid any implicit rule to kick in, define an empty command. | 383 | # To avoid any implicit rule to kick in, define an empty command. |
| 384 | scripts/basic/%: scripts_basic ; | 384 | scripts/basic/%: scripts_basic ; |
| 385 | 385 | ||
| 386 | PHONY += outputmakefile | 386 | PHONY += outputmakefile |
| 387 | # outputmakefile generates a Makefile in the output directory, if using a | 387 | # outputmakefile generates a Makefile in the output directory, if using a |
| 388 | # separate output directory. This allows convenient use of make in the | 388 | # separate output directory. This allows convenient use of make in the |
| 389 | # output directory. | 389 | # output directory. |
| 390 | outputmakefile: | 390 | outputmakefile: |
| 391 | ifneq ($(KBUILD_SRC),) | 391 | ifneq ($(KBUILD_SRC),) |
| 392 | $(Q)ln -fsn $(srctree) source | 392 | $(Q)ln -fsn $(srctree) source |
| 393 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ | 393 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/mkmakefile \ |
| 394 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) | 394 | $(srctree) $(objtree) $(VERSION) $(PATCHLEVEL) |
| 395 | endif | 395 | endif |
| 396 | 396 | ||
| 397 | # To make sure we do not include .config for any of the *config targets | 397 | # To make sure we do not include .config for any of the *config targets |
| 398 | # catch them early, and hand them over to scripts/kconfig/Makefile | 398 | # catch them early, and hand them over to scripts/kconfig/Makefile |
| 399 | # It is allowed to specify more targets when calling make, including | 399 | # It is allowed to specify more targets when calling make, including |
| 400 | # mixing *config targets and build targets. | 400 | # mixing *config targets and build targets. |
| 401 | # For example 'make oldconfig all'. | 401 | # For example 'make oldconfig all'. |
| 402 | # Detect when mixed targets is specified, and make a second invocation | 402 | # Detect when mixed targets is specified, and make a second invocation |
| 403 | # of make so .config is not included in this case either (for *config). | 403 | # of make so .config is not included in this case either (for *config). |
| 404 | 404 | ||
| 405 | no-dot-config-targets := clean mrproper distclean \ | 405 | no-dot-config-targets := clean mrproper distclean \ |
| 406 | cscope TAGS tags help %docs check% \ | 406 | cscope TAGS tags help %docs check% \ |
| 407 | include/linux/version.h headers_% \ | 407 | include/linux/version.h headers_% \ |
| 408 | kernelrelease kernelversion | 408 | kernelrelease kernelversion |
| 409 | 409 | ||
| 410 | config-targets := 0 | 410 | config-targets := 0 |
| 411 | mixed-targets := 0 | 411 | mixed-targets := 0 |
| 412 | dot-config := 1 | 412 | dot-config := 1 |
| 413 | 413 | ||
| 414 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) | 414 | ifneq ($(filter $(no-dot-config-targets), $(MAKECMDGOALS)),) |
| 415 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) | 415 | ifeq ($(filter-out $(no-dot-config-targets), $(MAKECMDGOALS)),) |
| 416 | dot-config := 0 | 416 | dot-config := 0 |
| 417 | endif | 417 | endif |
| 418 | endif | 418 | endif |
| 419 | 419 | ||
| 420 | ifeq ($(KBUILD_EXTMOD),) | 420 | ifeq ($(KBUILD_EXTMOD),) |
| 421 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) | 421 | ifneq ($(filter config %config,$(MAKECMDGOALS)),) |
| 422 | config-targets := 1 | 422 | config-targets := 1 |
| 423 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) | 423 | ifneq ($(filter-out config %config,$(MAKECMDGOALS)),) |
| 424 | mixed-targets := 1 | 424 | mixed-targets := 1 |
| 425 | endif | 425 | endif |
| 426 | endif | 426 | endif |
| 427 | endif | 427 | endif |
| 428 | 428 | ||
| 429 | ifeq ($(mixed-targets),1) | 429 | ifeq ($(mixed-targets),1) |
| 430 | # =========================================================================== | 430 | # =========================================================================== |
| 431 | # We're called with mixed targets (*config and build targets). | 431 | # We're called with mixed targets (*config and build targets). |
| 432 | # Handle them one by one. | 432 | # Handle them one by one. |
| 433 | 433 | ||
| 434 | %:: FORCE | 434 | %:: FORCE |
| 435 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ | 435 | $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= $@ |
| 436 | 436 | ||
| 437 | else | 437 | else |
| 438 | ifeq ($(config-targets),1) | 438 | ifeq ($(config-targets),1) |
| 439 | # =========================================================================== | 439 | # =========================================================================== |
| 440 | # *config targets only - make sure prerequisites are updated, and descend | 440 | # *config targets only - make sure prerequisites are updated, and descend |
| 441 | # in scripts/kconfig to make the *config target | 441 | # in scripts/kconfig to make the *config target |
| 442 | 442 | ||
| 443 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. | 443 | # Read arch specific Makefile to set KBUILD_DEFCONFIG as needed. |
| 444 | # KBUILD_DEFCONFIG may point out an alternative default configuration | 444 | # KBUILD_DEFCONFIG may point out an alternative default configuration |
| 445 | # used for 'make defconfig' | 445 | # used for 'make defconfig' |
| 446 | include $(srctree)/arch/$(SRCARCH)/Makefile | 446 | include $(srctree)/arch/$(SRCARCH)/Makefile |
| 447 | export KBUILD_DEFCONFIG KBUILD_KCONFIG | 447 | export KBUILD_DEFCONFIG KBUILD_KCONFIG |
| 448 | 448 | ||
| 449 | config: scripts_basic outputmakefile FORCE | 449 | config: scripts_basic outputmakefile FORCE |
| 450 | $(Q)mkdir -p include/linux include/config | 450 | $(Q)mkdir -p include/linux include/config |
| 451 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 451 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
| 452 | 452 | ||
| 453 | %config: scripts_basic outputmakefile FORCE | 453 | %config: scripts_basic outputmakefile FORCE |
| 454 | $(Q)mkdir -p include/linux include/config | 454 | $(Q)mkdir -p include/linux include/config |
| 455 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ | 455 | $(Q)$(MAKE) $(build)=scripts/kconfig $@ |
| 456 | 456 | ||
| 457 | else | 457 | else |
| 458 | # =========================================================================== | 458 | # =========================================================================== |
| 459 | # Build targets only - this includes vmlinux, arch specific targets, clean | 459 | # Build targets only - this includes vmlinux, arch specific targets, clean |
| 460 | # targets and others. In general all targets except *config targets. | 460 | # targets and others. In general all targets except *config targets. |
| 461 | 461 | ||
| 462 | ifeq ($(KBUILD_EXTMOD),) | 462 | ifeq ($(KBUILD_EXTMOD),) |
| 463 | # Additional helpers built in scripts/ | 463 | # Additional helpers built in scripts/ |
| 464 | # Carefully list dependencies so we do not try to build scripts twice | 464 | # Carefully list dependencies so we do not try to build scripts twice |
| 465 | # in parallel | 465 | # in parallel |
| 466 | PHONY += scripts | 466 | PHONY += scripts |
| 467 | scripts: scripts_basic include/config/auto.conf | 467 | scripts: scripts_basic include/config/auto.conf |
| 468 | $(Q)$(MAKE) $(build)=$(@) | 468 | $(Q)$(MAKE) $(build)=$(@) |
| 469 | 469 | ||
| 470 | # Objects we will link into vmlinux / subdirs we need to visit | 470 | # Objects we will link into vmlinux / subdirs we need to visit |
| 471 | init-y := init/ | 471 | init-y := init/ |
| 472 | drivers-y := drivers/ sound/ firmware/ | 472 | drivers-y := drivers/ sound/ firmware/ |
| 473 | net-y := net/ | 473 | net-y := net/ |
| 474 | libs-y := lib/ | 474 | libs-y := lib/ |
| 475 | core-y := usr/ | 475 | core-y := usr/ |
| 476 | endif # KBUILD_EXTMOD | 476 | endif # KBUILD_EXTMOD |
| 477 | 477 | ||
| 478 | ifeq ($(dot-config),1) | 478 | ifeq ($(dot-config),1) |
| 479 | # Read in config | 479 | # Read in config |
| 480 | -include include/config/auto.conf | 480 | -include include/config/auto.conf |
| 481 | 481 | ||
| 482 | ifeq ($(KBUILD_EXTMOD),) | 482 | ifeq ($(KBUILD_EXTMOD),) |
| 483 | # Read in dependencies to all Kconfig* files, make sure to run | 483 | # Read in dependencies to all Kconfig* files, make sure to run |
| 484 | # oldconfig if changes are detected. | 484 | # oldconfig if changes are detected. |
| 485 | -include include/config/auto.conf.cmd | 485 | -include include/config/auto.conf.cmd |
| 486 | 486 | ||
| 487 | # To avoid any implicit rule to kick in, define an empty command | 487 | # To avoid any implicit rule to kick in, define an empty command |
| 488 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; | 488 | $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ; |
| 489 | 489 | ||
| 490 | # If .config is newer than include/config/auto.conf, someone tinkered | 490 | # If .config is newer than include/config/auto.conf, someone tinkered |
| 491 | # with it and forgot to run make oldconfig. | 491 | # with it and forgot to run make oldconfig. |
| 492 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so | 492 | # if auto.conf.cmd is missing then we are probably in a cleaned tree so |
| 493 | # we execute the config step to be sure to catch updated Kconfig files | 493 | # we execute the config step to be sure to catch updated Kconfig files |
| 494 | include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd | 494 | include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd |
| 495 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig | 495 | $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig |
| 496 | else | 496 | else |
| 497 | # external modules needs include/linux/autoconf.h and include/config/auto.conf | 497 | # external modules needs include/linux/autoconf.h and include/config/auto.conf |
| 498 | # but do not care if they are up-to-date. Use auto.conf to trigger the test | 498 | # but do not care if they are up-to-date. Use auto.conf to trigger the test |
| 499 | PHONY += include/config/auto.conf | 499 | PHONY += include/config/auto.conf |
| 500 | 500 | ||
| 501 | include/config/auto.conf: | 501 | include/config/auto.conf: |
| 502 | $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \ | 502 | $(Q)test -e include/linux/autoconf.h -a -e $@ || ( \ |
| 503 | echo; \ | 503 | echo; \ |
| 504 | echo " ERROR: Kernel configuration is invalid."; \ | 504 | echo " ERROR: Kernel configuration is invalid."; \ |
| 505 | echo " include/linux/autoconf.h or $@ are missing."; \ | 505 | echo " include/linux/autoconf.h or $@ are missing."; \ |
| 506 | echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ | 506 | echo " Run 'make oldconfig && make prepare' on kernel src to fix it."; \ |
| 507 | echo; \ | 507 | echo; \ |
| 508 | /bin/false) | 508 | /bin/false) |
| 509 | 509 | ||
| 510 | endif # KBUILD_EXTMOD | 510 | endif # KBUILD_EXTMOD |
| 511 | 511 | ||
| 512 | else | 512 | else |
| 513 | # Dummy target needed, because used as prerequisite | 513 | # Dummy target needed, because used as prerequisite |
| 514 | include/config/auto.conf: ; | 514 | include/config/auto.conf: ; |
| 515 | endif # $(dot-config) | 515 | endif # $(dot-config) |
| 516 | 516 | ||
| 517 | # The all: target is the default when no target is given on the | 517 | # The all: target is the default when no target is given on the |
| 518 | # command line. | 518 | # command line. |
| 519 | # This allow a user to issue only 'make' to build a kernel including modules | 519 | # This allow a user to issue only 'make' to build a kernel including modules |
| 520 | # Defaults vmlinux but it is usually overridden in the arch makefile | 520 | # Defaults vmlinux but it is usually overridden in the arch makefile |
| 521 | all: vmlinux | 521 | all: vmlinux |
| 522 | 522 | ||
| 523 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE | 523 | ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE |
| 524 | KBUILD_CFLAGS += -Os | 524 | KBUILD_CFLAGS += -Os |
| 525 | else | 525 | else |
| 526 | KBUILD_CFLAGS += -O2 | 526 | KBUILD_CFLAGS += -O2 |
| 527 | endif | 527 | endif |
| 528 | 528 | ||
| 529 | include $(srctree)/arch/$(SRCARCH)/Makefile | 529 | include $(srctree)/arch/$(SRCARCH)/Makefile |
| 530 | 530 | ||
| 531 | ifneq (CONFIG_FRAME_WARN,0) | 531 | ifneq (CONFIG_FRAME_WARN,0) |
| 532 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) | 532 | KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) |
| 533 | endif | 533 | endif |
| 534 | 534 | ||
| 535 | # Force gcc to behave correct even for buggy distributions | 535 | # Force gcc to behave correct even for buggy distributions |
| 536 | # Arch Makefiles may override this setting | 536 | # Arch Makefiles may override this setting |
| 537 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) | 537 | KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector) |
| 538 | 538 | ||
| 539 | ifdef CONFIG_FRAME_POINTER | 539 | ifdef CONFIG_FRAME_POINTER |
| 540 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls | 540 | KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls |
| 541 | else | 541 | else |
| 542 | KBUILD_CFLAGS += -fomit-frame-pointer | 542 | KBUILD_CFLAGS += -fomit-frame-pointer |
| 543 | endif | 543 | endif |
| 544 | 544 | ||
| 545 | ifdef CONFIG_DEBUG_INFO | 545 | ifdef CONFIG_DEBUG_INFO |
| 546 | KBUILD_CFLAGS += -g | 546 | KBUILD_CFLAGS += -g |
| 547 | KBUILD_AFLAGS += -gdwarf-2 | 547 | KBUILD_AFLAGS += -gdwarf-2 |
| 548 | endif | 548 | endif |
| 549 | 549 | ||
| 550 | ifdef CONFIG_FUNCTION_TRACER | 550 | ifdef CONFIG_FUNCTION_TRACER |
| 551 | KBUILD_CFLAGS += -pg | 551 | KBUILD_CFLAGS += -pg |
| 552 | endif | 552 | endif |
| 553 | 553 | ||
| 554 | # We trigger additional mismatches with less inlining | 554 | # We trigger additional mismatches with less inlining |
| 555 | ifdef CONFIG_DEBUG_SECTION_MISMATCH | 555 | ifdef CONFIG_DEBUG_SECTION_MISMATCH |
| 556 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) | 556 | KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once) |
| 557 | endif | 557 | endif |
| 558 | 558 | ||
| 559 | # arch Makefile may override CC so keep this after arch Makefile is included | 559 | # arch Makefile may override CC so keep this after arch Makefile is included |
| 560 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) | 560 | NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) |
| 561 | CHECKFLAGS += $(NOSTDINC_FLAGS) | 561 | CHECKFLAGS += $(NOSTDINC_FLAGS) |
| 562 | 562 | ||
| 563 | # warn about C99 declaration after statement | 563 | # warn about C99 declaration after statement |
| 564 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) | 564 | KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,) |
| 565 | 565 | ||
| 566 | # disable pointer signed / unsigned warnings in gcc 4.0 | 566 | # disable pointer signed / unsigned warnings in gcc 4.0 |
| 567 | KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) | 567 | KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,) |
| 568 | 568 | ||
| 569 | # disable invalid "can't wrap" optimzations for signed / pointers | 569 | # disable invalid "can't wrap" optimzations for signed / pointers |
| 570 | KBUILD_CFLAGS += $(call cc-option,-fwrapv) | 570 | KBUILD_CFLAGS += $(call cc-option,-fwrapv) |
| 571 | 571 | ||
| 572 | # revert to pre-gcc-4.4 behaviour of .eh_frame | ||
| 573 | KBUILD_CFLAGS += $(call cc-option,-fno-dwarf2-cfi-asm) | ||
| 574 | |||
| 572 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments | 575 | # Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments |
| 573 | # But warn user when we do so | 576 | # But warn user when we do so |
| 574 | warn-assign = \ | 577 | warn-assign = \ |
| 575 | $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") | 578 | $(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)") |
| 576 | 579 | ||
| 577 | ifneq ($(KCPPFLAGS),) | 580 | ifneq ($(KCPPFLAGS),) |
| 578 | $(call warn-assign,CPPFLAGS) | 581 | $(call warn-assign,CPPFLAGS) |
| 579 | KBUILD_CPPFLAGS += $(KCPPFLAGS) | 582 | KBUILD_CPPFLAGS += $(KCPPFLAGS) |
| 580 | endif | 583 | endif |
| 581 | ifneq ($(KAFLAGS),) | 584 | ifneq ($(KAFLAGS),) |
| 582 | $(call warn-assign,AFLAGS) | 585 | $(call warn-assign,AFLAGS) |
| 583 | KBUILD_AFLAGS += $(KAFLAGS) | 586 | KBUILD_AFLAGS += $(KAFLAGS) |
| 584 | endif | 587 | endif |
| 585 | ifneq ($(KCFLAGS),) | 588 | ifneq ($(KCFLAGS),) |
| 586 | $(call warn-assign,CFLAGS) | 589 | $(call warn-assign,CFLAGS) |
| 587 | KBUILD_CFLAGS += $(KCFLAGS) | 590 | KBUILD_CFLAGS += $(KCFLAGS) |
| 588 | endif | 591 | endif |
| 589 | 592 | ||
| 590 | # Use --build-id when available. | 593 | # Use --build-id when available. |
| 591 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ | 594 | LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\ |
| 592 | $(call ld-option, -Wl$(comma)--build-id,)) | 595 | $(call ld-option, -Wl$(comma)--build-id,)) |
| 593 | LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) | 596 | LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID) |
| 594 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) | 597 | LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID) |
| 595 | 598 | ||
| 596 | # Default kernel image to build when no specific target is given. | 599 | # Default kernel image to build when no specific target is given. |
| 597 | # KBUILD_IMAGE may be overruled on the command line or | 600 | # KBUILD_IMAGE may be overruled on the command line or |
| 598 | # set in the environment | 601 | # set in the environment |
| 599 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over | 602 | # Also any assignments in arch/$(ARCH)/Makefile take precedence over |
| 600 | # this default value | 603 | # this default value |
| 601 | export KBUILD_IMAGE ?= vmlinux | 604 | export KBUILD_IMAGE ?= vmlinux |
| 602 | 605 | ||
| 603 | # | 606 | # |
| 604 | # INSTALL_PATH specifies where to place the updated kernel and system map | 607 | # INSTALL_PATH specifies where to place the updated kernel and system map |
| 605 | # images. Default is /boot, but you can set it to other values | 608 | # images. Default is /boot, but you can set it to other values |
| 606 | export INSTALL_PATH ?= /boot | 609 | export INSTALL_PATH ?= /boot |
| 607 | 610 | ||
| 608 | # | 611 | # |
| 609 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory | 612 | # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory |
| 610 | # relocations required by build roots. This is not defined in the | 613 | # relocations required by build roots. This is not defined in the |
| 611 | # makefile but the argument can be passed to make if needed. | 614 | # makefile but the argument can be passed to make if needed. |
| 612 | # | 615 | # |
| 613 | 616 | ||
| 614 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) | 617 | MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE) |
| 615 | export MODLIB | 618 | export MODLIB |
| 616 | 619 | ||
| 617 | # | 620 | # |
| 618 | # INSTALL_MOD_STRIP, if defined, will cause modules to be | 621 | # INSTALL_MOD_STRIP, if defined, will cause modules to be |
| 619 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then | 622 | # stripped after they are installed. If INSTALL_MOD_STRIP is '1', then |
| 620 | # the default option --strip-debug will be used. Otherwise, | 623 | # the default option --strip-debug will be used. Otherwise, |
| 621 | # INSTALL_MOD_STRIP will used as the options to the strip command. | 624 | # INSTALL_MOD_STRIP will used as the options to the strip command. |
| 622 | 625 | ||
| 623 | ifdef INSTALL_MOD_STRIP | 626 | ifdef INSTALL_MOD_STRIP |
| 624 | ifeq ($(INSTALL_MOD_STRIP),1) | 627 | ifeq ($(INSTALL_MOD_STRIP),1) |
| 625 | mod_strip_cmd = $(STRIP) --strip-debug | 628 | mod_strip_cmd = $(STRIP) --strip-debug |
| 626 | else | 629 | else |
| 627 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) | 630 | mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP) |
| 628 | endif # INSTALL_MOD_STRIP=1 | 631 | endif # INSTALL_MOD_STRIP=1 |
| 629 | else | 632 | else |
| 630 | mod_strip_cmd = true | 633 | mod_strip_cmd = true |
| 631 | endif # INSTALL_MOD_STRIP | 634 | endif # INSTALL_MOD_STRIP |
| 632 | export mod_strip_cmd | 635 | export mod_strip_cmd |
| 633 | 636 | ||
| 634 | 637 | ||
| 635 | ifeq ($(KBUILD_EXTMOD),) | 638 | ifeq ($(KBUILD_EXTMOD),) |
| 636 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ | 639 | core-y += kernel/ mm/ fs/ ipc/ security/ crypto/ block/ |
| 637 | 640 | ||
| 638 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ | 641 | vmlinux-dirs := $(patsubst %/,%,$(filter %/, $(init-y) $(init-m) \ |
| 639 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ | 642 | $(core-y) $(core-m) $(drivers-y) $(drivers-m) \ |
| 640 | $(net-y) $(net-m) $(libs-y) $(libs-m))) | 643 | $(net-y) $(net-m) $(libs-y) $(libs-m))) |
| 641 | 644 | ||
| 642 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ | 645 | vmlinux-alldirs := $(sort $(vmlinux-dirs) $(patsubst %/,%,$(filter %/, \ |
| 643 | $(init-n) $(init-) \ | 646 | $(init-n) $(init-) \ |
| 644 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ | 647 | $(core-n) $(core-) $(drivers-n) $(drivers-) \ |
| 645 | $(net-n) $(net-) $(libs-n) $(libs-)))) | 648 | $(net-n) $(net-) $(libs-n) $(libs-)))) |
| 646 | 649 | ||
| 647 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) | 650 | init-y := $(patsubst %/, %/built-in.o, $(init-y)) |
| 648 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) | 651 | core-y := $(patsubst %/, %/built-in.o, $(core-y)) |
| 649 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) | 652 | drivers-y := $(patsubst %/, %/built-in.o, $(drivers-y)) |
| 650 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) | 653 | net-y := $(patsubst %/, %/built-in.o, $(net-y)) |
| 651 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) | 654 | libs-y1 := $(patsubst %/, %/lib.a, $(libs-y)) |
| 652 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) | 655 | libs-y2 := $(patsubst %/, %/built-in.o, $(libs-y)) |
| 653 | libs-y := $(libs-y1) $(libs-y2) | 656 | libs-y := $(libs-y1) $(libs-y2) |
| 654 | 657 | ||
| 655 | # Build vmlinux | 658 | # Build vmlinux |
| 656 | # --------------------------------------------------------------------------- | 659 | # --------------------------------------------------------------------------- |
| 657 | # vmlinux is built from the objects selected by $(vmlinux-init) and | 660 | # vmlinux is built from the objects selected by $(vmlinux-init) and |
| 658 | # $(vmlinux-main). Most are built-in.o files from top-level directories | 661 | # $(vmlinux-main). Most are built-in.o files from top-level directories |
| 659 | # in the kernel tree, others are specified in arch/$(ARCH)/Makefile. | 662 | # in the kernel tree, others are specified in arch/$(ARCH)/Makefile. |
| 660 | # Ordering when linking is important, and $(vmlinux-init) must be first. | 663 | # Ordering when linking is important, and $(vmlinux-init) must be first. |
| 661 | # | 664 | # |
| 662 | # vmlinux | 665 | # vmlinux |
| 663 | # ^ | 666 | # ^ |
| 664 | # | | 667 | # | |
| 665 | # +-< $(vmlinux-init) | 668 | # +-< $(vmlinux-init) |
| 666 | # | +--< init/version.o + more | 669 | # | +--< init/version.o + more |
| 667 | # | | 670 | # | |
| 668 | # +--< $(vmlinux-main) | 671 | # +--< $(vmlinux-main) |
| 669 | # | +--< driver/built-in.o mm/built-in.o + more | 672 | # | +--< driver/built-in.o mm/built-in.o + more |
| 670 | # | | 673 | # | |
| 671 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) | 674 | # +-< kallsyms.o (see description in CONFIG_KALLSYMS section) |
| 672 | # | 675 | # |
| 673 | # vmlinux version (uname -v) cannot be updated during normal | 676 | # vmlinux version (uname -v) cannot be updated during normal |
| 674 | # descending-into-subdirs phase since we do not yet know if we need to | 677 | # descending-into-subdirs phase since we do not yet know if we need to |
| 675 | # update vmlinux. | 678 | # update vmlinux. |
| 676 | # Therefore this step is delayed until just before final link of vmlinux - | 679 | # Therefore this step is delayed until just before final link of vmlinux - |
| 677 | # except in the kallsyms case where it is done just before adding the | 680 | # except in the kallsyms case where it is done just before adding the |
| 678 | # symbols to the kernel. | 681 | # symbols to the kernel. |
| 679 | # | 682 | # |
| 680 | # System.map is generated to document addresses of all kernel symbols | 683 | # System.map is generated to document addresses of all kernel symbols |
| 681 | 684 | ||
| 682 | vmlinux-init := $(head-y) $(init-y) | 685 | vmlinux-init := $(head-y) $(init-y) |
| 683 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) | 686 | vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y) |
| 684 | vmlinux-all := $(vmlinux-init) $(vmlinux-main) | 687 | vmlinux-all := $(vmlinux-init) $(vmlinux-main) |
| 685 | vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds | 688 | vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds |
| 686 | export KBUILD_VMLINUX_OBJS := $(vmlinux-all) | 689 | export KBUILD_VMLINUX_OBJS := $(vmlinux-all) |
| 687 | 690 | ||
| 688 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS | 691 | # Rule to link vmlinux - also used during CONFIG_KALLSYMS |
| 689 | # May be overridden by arch/$(ARCH)/Makefile | 692 | # May be overridden by arch/$(ARCH)/Makefile |
| 690 | quiet_cmd_vmlinux__ ?= LD $@ | 693 | quiet_cmd_vmlinux__ ?= LD $@ |
| 691 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ | 694 | cmd_vmlinux__ ?= $(LD) $(LDFLAGS) $(LDFLAGS_vmlinux) -o $@ \ |
| 692 | -T $(vmlinux-lds) $(vmlinux-init) \ | 695 | -T $(vmlinux-lds) $(vmlinux-init) \ |
| 693 | --start-group $(vmlinux-main) --end-group \ | 696 | --start-group $(vmlinux-main) --end-group \ |
| 694 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) | 697 | $(filter-out $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o FORCE ,$^) |
| 695 | 698 | ||
| 696 | # Generate new vmlinux version | 699 | # Generate new vmlinux version |
| 697 | quiet_cmd_vmlinux_version = GEN .version | 700 | quiet_cmd_vmlinux_version = GEN .version |
| 698 | cmd_vmlinux_version = set -e; \ | 701 | cmd_vmlinux_version = set -e; \ |
| 699 | if [ ! -r .version ]; then \ | 702 | if [ ! -r .version ]; then \ |
| 700 | rm -f .version; \ | 703 | rm -f .version; \ |
| 701 | echo 1 >.version; \ | 704 | echo 1 >.version; \ |
| 702 | else \ | 705 | else \ |
| 703 | mv .version .old_version; \ | 706 | mv .version .old_version; \ |
| 704 | expr 0$$(cat .old_version) + 1 >.version; \ | 707 | expr 0$$(cat .old_version) + 1 >.version; \ |
| 705 | fi; \ | 708 | fi; \ |
| 706 | $(MAKE) $(build)=init | 709 | $(MAKE) $(build)=init |
| 707 | 710 | ||
| 708 | # Generate System.map | 711 | # Generate System.map |
| 709 | quiet_cmd_sysmap = SYSMAP | 712 | quiet_cmd_sysmap = SYSMAP |
| 710 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap | 713 | cmd_sysmap = $(CONFIG_SHELL) $(srctree)/scripts/mksysmap |
| 711 | 714 | ||
| 712 | # Link of vmlinux | 715 | # Link of vmlinux |
| 713 | # If CONFIG_KALLSYMS is set .version is already updated | 716 | # If CONFIG_KALLSYMS is set .version is already updated |
| 714 | # Generate System.map and verify that the content is consistent | 717 | # Generate System.map and verify that the content is consistent |
| 715 | # Use + in front of the vmlinux_version rule to silent warning with make -j2 | 718 | # Use + in front of the vmlinux_version rule to silent warning with make -j2 |
| 716 | # First command is ':' to allow us to use + in front of the rule | 719 | # First command is ':' to allow us to use + in front of the rule |
| 717 | define rule_vmlinux__ | 720 | define rule_vmlinux__ |
| 718 | : | 721 | : |
| 719 | $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) | 722 | $(if $(CONFIG_KALLSYMS),,+$(call cmd,vmlinux_version)) |
| 720 | 723 | ||
| 721 | $(call cmd,vmlinux__) | 724 | $(call cmd,vmlinux__) |
| 722 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | 725 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
| 723 | 726 | ||
| 724 | $(Q)$(if $($(quiet)cmd_sysmap), \ | 727 | $(Q)$(if $($(quiet)cmd_sysmap), \ |
| 725 | echo ' $($(quiet)cmd_sysmap) System.map' &&) \ | 728 | echo ' $($(quiet)cmd_sysmap) System.map' &&) \ |
| 726 | $(cmd_sysmap) $@ System.map; \ | 729 | $(cmd_sysmap) $@ System.map; \ |
| 727 | if [ $$? -ne 0 ]; then \ | 730 | if [ $$? -ne 0 ]; then \ |
| 728 | rm -f $@; \ | 731 | rm -f $@; \ |
| 729 | /bin/false; \ | 732 | /bin/false; \ |
| 730 | fi; | 733 | fi; |
| 731 | $(verify_kallsyms) | 734 | $(verify_kallsyms) |
| 732 | endef | 735 | endef |
| 733 | 736 | ||
| 734 | 737 | ||
| 735 | ifdef CONFIG_KALLSYMS | 738 | ifdef CONFIG_KALLSYMS |
| 736 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) | 739 | # Generate section listing all symbols and add it into vmlinux $(kallsyms.o) |
| 737 | # It's a three stage process: | 740 | # It's a three stage process: |
| 738 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is | 741 | # o .tmp_vmlinux1 has all symbols and sections, but __kallsyms is |
| 739 | # empty | 742 | # empty |
| 740 | # Running kallsyms on that gives us .tmp_kallsyms1.o with | 743 | # Running kallsyms on that gives us .tmp_kallsyms1.o with |
| 741 | # the right size - vmlinux version (uname -v) is updated during this step | 744 | # the right size - vmlinux version (uname -v) is updated during this step |
| 742 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size, | 745 | # o .tmp_vmlinux2 now has a __kallsyms section of the right size, |
| 743 | # but due to the added section, some addresses have shifted. | 746 | # but due to the added section, some addresses have shifted. |
| 744 | # From here, we generate a correct .tmp_kallsyms2.o | 747 | # From here, we generate a correct .tmp_kallsyms2.o |
| 745 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. | 748 | # o The correct .tmp_kallsyms2.o is linked into the final vmlinux. |
| 746 | # o Verify that the System.map from vmlinux matches the map from | 749 | # o Verify that the System.map from vmlinux matches the map from |
| 747 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. | 750 | # .tmp_vmlinux2, just in case we did not generate kallsyms correctly. |
| 748 | # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using | 751 | # o If CONFIG_KALLSYMS_EXTRA_PASS is set, do an extra pass using |
| 749 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a | 752 | # .tmp_vmlinux3 and .tmp_kallsyms3.o. This is only meant as a |
| 750 | # temporary bypass to allow the kernel to be built while the | 753 | # temporary bypass to allow the kernel to be built while the |
| 751 | # maintainers work out what went wrong with kallsyms. | 754 | # maintainers work out what went wrong with kallsyms. |
| 752 | 755 | ||
| 753 | ifdef CONFIG_KALLSYMS_EXTRA_PASS | 756 | ifdef CONFIG_KALLSYMS_EXTRA_PASS |
| 754 | last_kallsyms := 3 | 757 | last_kallsyms := 3 |
| 755 | else | 758 | else |
| 756 | last_kallsyms := 2 | 759 | last_kallsyms := 2 |
| 757 | endif | 760 | endif |
| 758 | 761 | ||
| 759 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o | 762 | kallsyms.o := .tmp_kallsyms$(last_kallsyms).o |
| 760 | 763 | ||
| 761 | define verify_kallsyms | 764 | define verify_kallsyms |
| 762 | $(Q)$(if $($(quiet)cmd_sysmap), \ | 765 | $(Q)$(if $($(quiet)cmd_sysmap), \ |
| 763 | echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ | 766 | echo ' $($(quiet)cmd_sysmap) .tmp_System.map' &&) \ |
| 764 | $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map | 767 | $(cmd_sysmap) .tmp_vmlinux$(last_kallsyms) .tmp_System.map |
| 765 | $(Q)cmp -s System.map .tmp_System.map || \ | 768 | $(Q)cmp -s System.map .tmp_System.map || \ |
| 766 | (echo Inconsistent kallsyms data; \ | 769 | (echo Inconsistent kallsyms data; \ |
| 767 | echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ | 770 | echo Try setting CONFIG_KALLSYMS_EXTRA_PASS; \ |
| 768 | rm .tmp_kallsyms* ; /bin/false ) | 771 | rm .tmp_kallsyms* ; /bin/false ) |
| 769 | endef | 772 | endef |
| 770 | 773 | ||
| 771 | # Update vmlinux version before link | 774 | # Update vmlinux version before link |
| 772 | # Use + in front of this rule to silent warning about make -j1 | 775 | # Use + in front of this rule to silent warning about make -j1 |
| 773 | # First command is ':' to allow us to use + in front of this rule | 776 | # First command is ':' to allow us to use + in front of this rule |
| 774 | cmd_ksym_ld = $(cmd_vmlinux__) | 777 | cmd_ksym_ld = $(cmd_vmlinux__) |
| 775 | define rule_ksym_ld | 778 | define rule_ksym_ld |
| 776 | : | 779 | : |
| 777 | +$(call cmd,vmlinux_version) | 780 | +$(call cmd,vmlinux_version) |
| 778 | $(call cmd,vmlinux__) | 781 | $(call cmd,vmlinux__) |
| 779 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd | 782 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd |
| 780 | endef | 783 | endef |
| 781 | 784 | ||
| 782 | # Generate .S file with all kernel symbols | 785 | # Generate .S file with all kernel symbols |
| 783 | quiet_cmd_kallsyms = KSYM $@ | 786 | quiet_cmd_kallsyms = KSYM $@ |
| 784 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ | 787 | cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \ |
| 785 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ | 788 | $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@ |
| 786 | 789 | ||
| 787 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE | 790 | .tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE |
| 788 | $(call if_changed_dep,as_o_S) | 791 | $(call if_changed_dep,as_o_S) |
| 789 | 792 | ||
| 790 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) | 793 | .tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS) |
| 791 | $(call cmd,kallsyms) | 794 | $(call cmd,kallsyms) |
| 792 | 795 | ||
| 793 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version | 796 | # .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version |
| 794 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE | 797 | .tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE |
| 795 | $(call if_changed_rule,ksym_ld) | 798 | $(call if_changed_rule,ksym_ld) |
| 796 | 799 | ||
| 797 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE | 800 | .tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE |
| 798 | $(call if_changed,vmlinux__) | 801 | $(call if_changed,vmlinux__) |
| 799 | 802 | ||
| 800 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE | 803 | .tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE |
| 801 | $(call if_changed,vmlinux__) | 804 | $(call if_changed,vmlinux__) |
| 802 | 805 | ||
| 803 | # Needs to visit scripts/ before $(KALLSYMS) can be used. | 806 | # Needs to visit scripts/ before $(KALLSYMS) can be used. |
| 804 | $(KALLSYMS): scripts ; | 807 | $(KALLSYMS): scripts ; |
| 805 | 808 | ||
| 806 | # Generate some data for debugging strange kallsyms problems | 809 | # Generate some data for debugging strange kallsyms problems |
| 807 | debug_kallsyms: .tmp_map$(last_kallsyms) | 810 | debug_kallsyms: .tmp_map$(last_kallsyms) |
| 808 | 811 | ||
| 809 | .tmp_map%: .tmp_vmlinux% FORCE | 812 | .tmp_map%: .tmp_vmlinux% FORCE |
| 810 | ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ | 813 | ($(OBJDUMP) -h $< | $(AWK) '/^ +[0-9]/{print $$4 " 0 " $$2}'; $(NM) $<) | sort > $@ |
| 811 | 814 | ||
| 812 | .tmp_map3: .tmp_map2 | 815 | .tmp_map3: .tmp_map2 |
| 813 | 816 | ||
| 814 | .tmp_map2: .tmp_map1 | 817 | .tmp_map2: .tmp_map1 |
| 815 | 818 | ||
| 816 | endif # ifdef CONFIG_KALLSYMS | 819 | endif # ifdef CONFIG_KALLSYMS |
| 817 | 820 | ||
| 818 | # Do modpost on a prelinked vmlinux. The finally linked vmlinux has | 821 | # Do modpost on a prelinked vmlinux. The finally linked vmlinux has |
| 819 | # relevant sections renamed as per the linker script. | 822 | # relevant sections renamed as per the linker script. |
| 820 | quiet_cmd_vmlinux-modpost = LD $@ | 823 | quiet_cmd_vmlinux-modpost = LD $@ |
| 821 | cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ | 824 | cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \ |
| 822 | $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ | 825 | $(vmlinux-init) --start-group $(vmlinux-main) --end-group \ |
| 823 | $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) | 826 | $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^) |
| 824 | define rule_vmlinux-modpost | 827 | define rule_vmlinux-modpost |
| 825 | : | 828 | : |
| 826 | +$(call cmd,vmlinux-modpost) | 829 | +$(call cmd,vmlinux-modpost) |
| 827 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ | 830 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost $@ |
| 828 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd | 831 | $(Q)echo 'cmd_$@ := $(cmd_vmlinux-modpost)' > $(dot-target).cmd |
| 829 | endef | 832 | endef |
| 830 | 833 | ||
| 831 | # vmlinux image - including updated kernel symbols | 834 | # vmlinux image - including updated kernel symbols |
| 832 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE | 835 | vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE |
| 833 | ifdef CONFIG_HEADERS_CHECK | 836 | ifdef CONFIG_HEADERS_CHECK |
| 834 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check | 837 | $(Q)$(MAKE) -f $(srctree)/Makefile headers_check |
| 835 | endif | 838 | endif |
| 836 | ifdef CONFIG_SAMPLES | 839 | ifdef CONFIG_SAMPLES |
| 837 | $(Q)$(MAKE) $(build)=samples | 840 | $(Q)$(MAKE) $(build)=samples |
| 838 | endif | 841 | endif |
| 839 | ifdef CONFIG_BUILD_DOCSRC | 842 | ifdef CONFIG_BUILD_DOCSRC |
| 840 | $(Q)$(MAKE) $(build)=Documentation | 843 | $(Q)$(MAKE) $(build)=Documentation |
| 841 | endif | 844 | endif |
| 842 | $(call vmlinux-modpost) | 845 | $(call vmlinux-modpost) |
| 843 | $(call if_changed_rule,vmlinux__) | 846 | $(call if_changed_rule,vmlinux__) |
| 844 | $(Q)rm -f .old_version | 847 | $(Q)rm -f .old_version |
| 845 | 848 | ||
| 846 | # build vmlinux.o first to catch section mismatch errors early | 849 | # build vmlinux.o first to catch section mismatch errors early |
| 847 | ifdef CONFIG_KALLSYMS | 850 | ifdef CONFIG_KALLSYMS |
| 848 | .tmp_vmlinux1: vmlinux.o | 851 | .tmp_vmlinux1: vmlinux.o |
| 849 | endif | 852 | endif |
| 850 | 853 | ||
| 851 | modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) | 854 | modpost-init := $(filter-out init/built-in.o, $(vmlinux-init)) |
| 852 | vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE | 855 | vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE |
| 853 | $(call if_changed_rule,vmlinux-modpost) | 856 | $(call if_changed_rule,vmlinux-modpost) |
| 854 | 857 | ||
| 855 | # The actual objects are generated when descending, | 858 | # The actual objects are generated when descending, |
| 856 | # make sure no implicit rule kicks in | 859 | # make sure no implicit rule kicks in |
| 857 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; | 860 | $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; |
| 858 | 861 | ||
| 859 | # Handle descending into subdirectories listed in $(vmlinux-dirs) | 862 | # Handle descending into subdirectories listed in $(vmlinux-dirs) |
| 860 | # Preset locale variables to speed up the build process. Limit locale | 863 | # Preset locale variables to speed up the build process. Limit locale |
| 861 | # tweaks to this spot to avoid wrong language settings when running | 864 | # tweaks to this spot to avoid wrong language settings when running |
| 862 | # make menuconfig etc. | 865 | # make menuconfig etc. |
| 863 | # Error messages still appears in the original language | 866 | # Error messages still appears in the original language |
| 864 | 867 | ||
| 865 | PHONY += $(vmlinux-dirs) | 868 | PHONY += $(vmlinux-dirs) |
| 866 | $(vmlinux-dirs): prepare scripts | 869 | $(vmlinux-dirs): prepare scripts |
| 867 | $(Q)$(MAKE) $(build)=$@ | 870 | $(Q)$(MAKE) $(build)=$@ |
| 868 | 871 | ||
| 869 | # Build the kernel release string | 872 | # Build the kernel release string |
| 870 | # | 873 | # |
| 871 | # The KERNELRELEASE value built here is stored in the file | 874 | # The KERNELRELEASE value built here is stored in the file |
| 872 | # include/config/kernel.release, and is used when executing several | 875 | # include/config/kernel.release, and is used when executing several |
| 873 | # make targets, such as "make install" or "make modules_install." | 876 | # make targets, such as "make install" or "make modules_install." |
| 874 | # | 877 | # |
| 875 | # The eventual kernel release string consists of the following fields, | 878 | # The eventual kernel release string consists of the following fields, |
| 876 | # shown in a hierarchical format to show how smaller parts are concatenated | 879 | # shown in a hierarchical format to show how smaller parts are concatenated |
| 877 | # to form the larger and final value, with values coming from places like | 880 | # to form the larger and final value, with values coming from places like |
| 878 | # the Makefile, kernel config options, make command line options and/or | 881 | # the Makefile, kernel config options, make command line options and/or |
| 879 | # SCM tag information. | 882 | # SCM tag information. |
| 880 | # | 883 | # |
| 881 | # $(KERNELVERSION) | 884 | # $(KERNELVERSION) |
| 882 | # $(VERSION) eg, 2 | 885 | # $(VERSION) eg, 2 |
| 883 | # $(PATCHLEVEL) eg, 6 | 886 | # $(PATCHLEVEL) eg, 6 |
| 884 | # $(SUBLEVEL) eg, 18 | 887 | # $(SUBLEVEL) eg, 18 |
| 885 | # $(EXTRAVERSION) eg, -rc6 | 888 | # $(EXTRAVERSION) eg, -rc6 |
| 886 | # $(localver-full) | 889 | # $(localver-full) |
| 887 | # $(localver) | 890 | # $(localver) |
| 888 | # localversion* (files without backups, containing '~') | 891 | # localversion* (files without backups, containing '~') |
| 889 | # $(CONFIG_LOCALVERSION) (from kernel config setting) | 892 | # $(CONFIG_LOCALVERSION) (from kernel config setting) |
| 890 | # $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set) | 893 | # $(localver-auto) (only if CONFIG_LOCALVERSION_AUTO is set) |
| 891 | # ./scripts/setlocalversion (SCM tag, if one exists) | 894 | # ./scripts/setlocalversion (SCM tag, if one exists) |
| 892 | # $(LOCALVERSION) (from make command line if provided) | 895 | # $(LOCALVERSION) (from make command line if provided) |
| 893 | # | 896 | # |
| 894 | # Note how the final $(localver-auto) string is included *only* if the | 897 | # Note how the final $(localver-auto) string is included *only* if the |
| 895 | # kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the | 898 | # kernel config option CONFIG_LOCALVERSION_AUTO is selected. Also, at the |
| 896 | # moment, only git is supported but other SCMs can edit the script | 899 | # moment, only git is supported but other SCMs can edit the script |
| 897 | # scripts/setlocalversion and add the appropriate checks as needed. | 900 | # scripts/setlocalversion and add the appropriate checks as needed. |
| 898 | 901 | ||
| 899 | pattern = ".*/localversion[^~]*" | 902 | pattern = ".*/localversion[^~]*" |
| 900 | string = $(shell cat /dev/null \ | 903 | string = $(shell cat /dev/null \ |
| 901 | `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`) | 904 | `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`) |
| 902 | 905 | ||
| 903 | localver = $(subst $(space),, $(string) \ | 906 | localver = $(subst $(space),, $(string) \ |
| 904 | $(patsubst "%",%,$(CONFIG_LOCALVERSION))) | 907 | $(patsubst "%",%,$(CONFIG_LOCALVERSION))) |
| 905 | 908 | ||
| 906 | # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called | 909 | # If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called |
| 907 | # and if the SCM is know a tag from the SCM is appended. | 910 | # and if the SCM is know a tag from the SCM is appended. |
| 908 | # The appended tag is determined by the SCM used. | 911 | # The appended tag is determined by the SCM used. |
| 909 | # | 912 | # |
| 910 | # .scmversion is used when generating rpm packages so we do not loose | 913 | # .scmversion is used when generating rpm packages so we do not loose |
| 911 | # the version information from the SCM when we do the build of the kernel | 914 | # the version information from the SCM when we do the build of the kernel |
| 912 | # from the copied source | 915 | # from the copied source |
| 913 | ifdef CONFIG_LOCALVERSION_AUTO | 916 | ifdef CONFIG_LOCALVERSION_AUTO |
| 914 | 917 | ||
| 915 | ifeq ($(wildcard .scmversion),) | 918 | ifeq ($(wildcard .scmversion),) |
| 916 | _localver-auto = $(shell $(CONFIG_SHELL) \ | 919 | _localver-auto = $(shell $(CONFIG_SHELL) \ |
| 917 | $(srctree)/scripts/setlocalversion $(srctree)) | 920 | $(srctree)/scripts/setlocalversion $(srctree)) |
| 918 | else | 921 | else |
| 919 | _localver-auto = $(shell cat .scmversion 2> /dev/null) | 922 | _localver-auto = $(shell cat .scmversion 2> /dev/null) |
| 920 | endif | 923 | endif |
| 921 | 924 | ||
| 922 | localver-auto = $(LOCALVERSION)$(_localver-auto) | 925 | localver-auto = $(LOCALVERSION)$(_localver-auto) |
| 923 | endif | 926 | endif |
| 924 | 927 | ||
| 925 | localver-full = $(localver)$(localver-auto) | 928 | localver-full = $(localver)$(localver-auto) |
| 926 | 929 | ||
| 927 | # Store (new) KERNELRELASE string in include/config/kernel.release | 930 | # Store (new) KERNELRELASE string in include/config/kernel.release |
| 928 | kernelrelease = $(KERNELVERSION)$(localver-full) | 931 | kernelrelease = $(KERNELVERSION)$(localver-full) |
| 929 | include/config/kernel.release: include/config/auto.conf FORCE | 932 | include/config/kernel.release: include/config/auto.conf FORCE |
| 930 | $(Q)rm -f $@ | 933 | $(Q)rm -f $@ |
| 931 | $(Q)echo $(kernelrelease) > $@ | 934 | $(Q)echo $(kernelrelease) > $@ |
| 932 | 935 | ||
| 933 | 936 | ||
| 934 | # Things we need to do before we recursively start building the kernel | 937 | # Things we need to do before we recursively start building the kernel |
| 935 | # or the modules are listed in "prepare". | 938 | # or the modules are listed in "prepare". |
| 936 | # A multi level approach is used. prepareN is processed before prepareN-1. | 939 | # A multi level approach is used. prepareN is processed before prepareN-1. |
| 937 | # archprepare is used in arch Makefiles and when processed asm symlink, | 940 | # archprepare is used in arch Makefiles and when processed asm symlink, |
| 938 | # version.h and scripts_basic is processed / created. | 941 | # version.h and scripts_basic is processed / created. |
| 939 | 942 | ||
| 940 | # Listed in dependency order | 943 | # Listed in dependency order |
| 941 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 | 944 | PHONY += prepare archprepare prepare0 prepare1 prepare2 prepare3 |
| 942 | 945 | ||
| 943 | # prepare3 is used to check if we are building in a separate output directory, | 946 | # prepare3 is used to check if we are building in a separate output directory, |
| 944 | # and if so do: | 947 | # and if so do: |
| 945 | # 1) Check that make has not been executed in the kernel src $(srctree) | 948 | # 1) Check that make has not been executed in the kernel src $(srctree) |
| 946 | # 2) Create the include2 directory, used for the second asm symlink | 949 | # 2) Create the include2 directory, used for the second asm symlink |
| 947 | prepare3: include/config/kernel.release | 950 | prepare3: include/config/kernel.release |
| 948 | ifneq ($(KBUILD_SRC),) | 951 | ifneq ($(KBUILD_SRC),) |
| 949 | @$(kecho) ' Using $(srctree) as source for kernel' | 952 | @$(kecho) ' Using $(srctree) as source for kernel' |
| 950 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ | 953 | $(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \ |
| 951 | echo " $(srctree) is not clean, please run 'make mrproper'";\ | 954 | echo " $(srctree) is not clean, please run 'make mrproper'";\ |
| 952 | echo " in the '$(srctree)' directory.";\ | 955 | echo " in the '$(srctree)' directory.";\ |
| 953 | /bin/false; \ | 956 | /bin/false; \ |
| 954 | fi; | 957 | fi; |
| 955 | $(Q)if [ ! -d include2 ]; then \ | 958 | $(Q)if [ ! -d include2 ]; then \ |
| 956 | mkdir -p include2; \ | 959 | mkdir -p include2; \ |
| 957 | ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \ | 960 | ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \ |
| 958 | fi | 961 | fi |
| 959 | endif | 962 | endif |
| 960 | 963 | ||
| 961 | # prepare2 creates a makefile if using a separate output directory | 964 | # prepare2 creates a makefile if using a separate output directory |
| 962 | prepare2: prepare3 outputmakefile | 965 | prepare2: prepare3 outputmakefile |
| 963 | 966 | ||
| 964 | prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \ | 967 | prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \ |
| 965 | include/asm include/config/auto.conf | 968 | include/asm include/config/auto.conf |
| 966 | $(cmd_crmodverdir) | 969 | $(cmd_crmodverdir) |
| 967 | 970 | ||
| 968 | archprepare: prepare1 scripts_basic | 971 | archprepare: prepare1 scripts_basic |
| 969 | 972 | ||
| 970 | prepare0: archprepare FORCE | 973 | prepare0: archprepare FORCE |
| 971 | $(Q)$(MAKE) $(build)=. | 974 | $(Q)$(MAKE) $(build)=. |
| 972 | $(Q)$(MAKE) $(build)=. missing-syscalls | 975 | $(Q)$(MAKE) $(build)=. missing-syscalls |
| 973 | 976 | ||
| 974 | # All the preparing.. | 977 | # All the preparing.. |
| 975 | prepare: prepare0 | 978 | prepare: prepare0 |
| 976 | 979 | ||
| 977 | # Leave this as default for preprocessing vmlinux.lds.S, which is now | 980 | # Leave this as default for preprocessing vmlinux.lds.S, which is now |
| 978 | # done in arch/$(ARCH)/kernel/Makefile | 981 | # done in arch/$(ARCH)/kernel/Makefile |
| 979 | 982 | ||
| 980 | export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) | 983 | export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH) |
| 981 | 984 | ||
| 982 | # The asm symlink changes when $(ARCH) changes. | 985 | # The asm symlink changes when $(ARCH) changes. |
| 983 | # Detect this and ask user to run make mrproper | 986 | # Detect this and ask user to run make mrproper |
| 984 | # If asm is a stale symlink (point to dir that does not exist) remove it | 987 | # If asm is a stale symlink (point to dir that does not exist) remove it |
| 985 | define check-symlink | 988 | define check-symlink |
| 986 | set -e; \ | 989 | set -e; \ |
| 987 | if [ -L include/asm ]; then \ | 990 | if [ -L include/asm ]; then \ |
| 988 | asmlink=`readlink include/asm | cut -d '-' -f 2`; \ | 991 | asmlink=`readlink include/asm | cut -d '-' -f 2`; \ |
| 989 | if [ "$$asmlink" != "$(SRCARCH)" ]; then \ | 992 | if [ "$$asmlink" != "$(SRCARCH)" ]; then \ |
| 990 | echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \ | 993 | echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \ |
| 991 | echo " set ARCH or save .config and run 'make mrproper' to fix it"; \ | 994 | echo " set ARCH or save .config and run 'make mrproper' to fix it"; \ |
| 992 | exit 1; \ | 995 | exit 1; \ |
| 993 | fi; \ | 996 | fi; \ |
| 994 | test -e $$asmlink || rm include/asm; \ | 997 | test -e $$asmlink || rm include/asm; \ |
| 995 | elif [ -d include/asm ]; then \ | 998 | elif [ -d include/asm ]; then \ |
| 996 | echo "ERROR: $@ is a directory but a symlink was expected";\ | 999 | echo "ERROR: $@ is a directory but a symlink was expected";\ |
| 997 | exit 1; \ | 1000 | exit 1; \ |
| 998 | fi | 1001 | fi |
| 999 | endef | 1002 | endef |
| 1000 | 1003 | ||
| 1001 | # We create the target directory of the symlink if it does | 1004 | # We create the target directory of the symlink if it does |
| 1002 | # not exist so the test in check-symlink works and we have a | 1005 | # not exist so the test in check-symlink works and we have a |
| 1003 | # directory for generated filesas used by some architectures. | 1006 | # directory for generated filesas used by some architectures. |
| 1004 | define create-symlink | 1007 | define create-symlink |
| 1005 | if [ ! -L include/asm ]; then \ | 1008 | if [ ! -L include/asm ]; then \ |
| 1006 | $(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \ | 1009 | $(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \ |
| 1007 | if [ ! -d include/asm-$(SRCARCH) ]; then \ | 1010 | if [ ! -d include/asm-$(SRCARCH) ]; then \ |
| 1008 | mkdir -p include/asm-$(SRCARCH); \ | 1011 | mkdir -p include/asm-$(SRCARCH); \ |
| 1009 | fi; \ | 1012 | fi; \ |
| 1010 | ln -fsn asm-$(SRCARCH) $@; \ | 1013 | ln -fsn asm-$(SRCARCH) $@; \ |
| 1011 | fi | 1014 | fi |
| 1012 | endef | 1015 | endef |
| 1013 | 1016 | ||
| 1014 | include/asm: FORCE | 1017 | include/asm: FORCE |
| 1015 | $(Q)$(check-symlink) | 1018 | $(Q)$(check-symlink) |
| 1016 | $(Q)$(create-symlink) | 1019 | $(Q)$(create-symlink) |
| 1017 | 1020 | ||
| 1018 | # Generate some files | 1021 | # Generate some files |
| 1019 | # --------------------------------------------------------------------------- | 1022 | # --------------------------------------------------------------------------- |
| 1020 | 1023 | ||
| 1021 | # KERNELRELEASE can change from a few different places, meaning version.h | 1024 | # KERNELRELEASE can change from a few different places, meaning version.h |
| 1022 | # needs to be updated, so this check is forced on all builds | 1025 | # needs to be updated, so this check is forced on all builds |
| 1023 | 1026 | ||
| 1024 | uts_len := 64 | 1027 | uts_len := 64 |
| 1025 | define filechk_utsrelease.h | 1028 | define filechk_utsrelease.h |
| 1026 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ | 1029 | if [ `echo -n "$(KERNELRELEASE)" | wc -c ` -gt $(uts_len) ]; then \ |
| 1027 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ | 1030 | echo '"$(KERNELRELEASE)" exceeds $(uts_len) characters' >&2; \ |
| 1028 | exit 1; \ | 1031 | exit 1; \ |
| 1029 | fi; \ | 1032 | fi; \ |
| 1030 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) | 1033 | (echo \#define UTS_RELEASE \"$(KERNELRELEASE)\";) |
| 1031 | endef | 1034 | endef |
| 1032 | 1035 | ||
| 1033 | define filechk_version.h | 1036 | define filechk_version.h |
| 1034 | (echo \#define LINUX_VERSION_CODE $(shell \ | 1037 | (echo \#define LINUX_VERSION_CODE $(shell \ |
| 1035 | expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ | 1038 | expr $(VERSION) \* 65536 + $(PATCHLEVEL) \* 256 + $(SUBLEVEL)); \ |
| 1036 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) | 1039 | echo '#define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))';) |
| 1037 | endef | 1040 | endef |
| 1038 | 1041 | ||
| 1039 | include/linux/version.h: $(srctree)/Makefile FORCE | 1042 | include/linux/version.h: $(srctree)/Makefile FORCE |
| 1040 | $(call filechk,version.h) | 1043 | $(call filechk,version.h) |
| 1041 | 1044 | ||
| 1042 | include/linux/utsrelease.h: include/config/kernel.release FORCE | 1045 | include/linux/utsrelease.h: include/config/kernel.release FORCE |
| 1043 | $(call filechk,utsrelease.h) | 1046 | $(call filechk,utsrelease.h) |
| 1044 | 1047 | ||
| 1045 | PHONY += headerdep | 1048 | PHONY += headerdep |
| 1046 | headerdep: | 1049 | headerdep: |
| 1047 | $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl | 1050 | $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl |
| 1048 | 1051 | ||
| 1049 | # --------------------------------------------------------------------------- | 1052 | # --------------------------------------------------------------------------- |
| 1050 | 1053 | ||
| 1051 | PHONY += depend dep | 1054 | PHONY += depend dep |
| 1052 | depend dep: | 1055 | depend dep: |
| 1053 | @echo '*** Warning: make $@ is unnecessary now.' | 1056 | @echo '*** Warning: make $@ is unnecessary now.' |
| 1054 | 1057 | ||
| 1055 | # --------------------------------------------------------------------------- | 1058 | # --------------------------------------------------------------------------- |
| 1056 | # Firmware install | 1059 | # Firmware install |
| 1057 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware | 1060 | INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware |
| 1058 | export INSTALL_FW_PATH | 1061 | export INSTALL_FW_PATH |
| 1059 | 1062 | ||
| 1060 | PHONY += firmware_install | 1063 | PHONY += firmware_install |
| 1061 | firmware_install: FORCE | 1064 | firmware_install: FORCE |
| 1062 | @mkdir -p $(objtree)/firmware | 1065 | @mkdir -p $(objtree)/firmware |
| 1063 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install | 1066 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install |
| 1064 | 1067 | ||
| 1065 | # --------------------------------------------------------------------------- | 1068 | # --------------------------------------------------------------------------- |
| 1066 | # Kernel headers | 1069 | # Kernel headers |
| 1067 | 1070 | ||
| 1068 | #Default location for installed headers | 1071 | #Default location for installed headers |
| 1069 | export INSTALL_HDR_PATH = $(objtree)/usr | 1072 | export INSTALL_HDR_PATH = $(objtree)/usr |
| 1070 | 1073 | ||
| 1071 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj | 1074 | hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj |
| 1072 | # Find out where the Kbuild file is located to support | 1075 | # Find out where the Kbuild file is located to support |
| 1073 | # arch/$(ARCH)/include/asm | 1076 | # arch/$(ARCH)/include/asm |
| 1074 | hdr-dir = $(strip \ | 1077 | hdr-dir = $(strip \ |
| 1075 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \ | 1078 | $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \ |
| 1076 | arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch))) | 1079 | arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch))) |
| 1077 | 1080 | ||
| 1078 | # If we do an all arch process set dst to asm-$(hdr-arch) | 1081 | # If we do an all arch process set dst to asm-$(hdr-arch) |
| 1079 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) | 1082 | hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm) |
| 1080 | 1083 | ||
| 1081 | PHONY += __headers | 1084 | PHONY += __headers |
| 1082 | __headers: include/linux/version.h scripts_basic FORCE | 1085 | __headers: include/linux/version.h scripts_basic FORCE |
| 1083 | $(Q)$(MAKE) $(build)=scripts scripts/unifdef | 1086 | $(Q)$(MAKE) $(build)=scripts scripts/unifdef |
| 1084 | 1087 | ||
| 1085 | PHONY += headers_install_all | 1088 | PHONY += headers_install_all |
| 1086 | headers_install_all: | 1089 | headers_install_all: |
| 1087 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install | 1090 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install |
| 1088 | 1091 | ||
| 1089 | PHONY += headers_install | 1092 | PHONY += headers_install |
| 1090 | headers_install: __headers | 1093 | headers_install: __headers |
| 1091 | $(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \ | 1094 | $(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \ |
| 1092 | $(error Headers not exportable for the $(SRCARCH) architecture)) | 1095 | $(error Headers not exportable for the $(SRCARCH) architecture)) |
| 1093 | $(Q)$(MAKE) $(hdr-inst)=include | 1096 | $(Q)$(MAKE) $(hdr-inst)=include |
| 1094 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) | 1097 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) |
| 1095 | 1098 | ||
| 1096 | PHONY += headers_check_all | 1099 | PHONY += headers_check_all |
| 1097 | headers_check_all: headers_install_all | 1100 | headers_check_all: headers_install_all |
| 1098 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check | 1101 | $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check |
| 1099 | 1102 | ||
| 1100 | PHONY += headers_check | 1103 | PHONY += headers_check |
| 1101 | headers_check: headers_install | 1104 | headers_check: headers_install |
| 1102 | $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 | 1105 | $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1 |
| 1103 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1 | 1106 | $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1 |
| 1104 | 1107 | ||
| 1105 | # --------------------------------------------------------------------------- | 1108 | # --------------------------------------------------------------------------- |
| 1106 | # Modules | 1109 | # Modules |
| 1107 | 1110 | ||
| 1108 | ifdef CONFIG_MODULES | 1111 | ifdef CONFIG_MODULES |
| 1109 | 1112 | ||
| 1110 | # By default, build modules as well | 1113 | # By default, build modules as well |
| 1111 | 1114 | ||
| 1112 | all: modules | 1115 | all: modules |
| 1113 | 1116 | ||
| 1114 | # Build modules | 1117 | # Build modules |
| 1115 | # | 1118 | # |
| 1116 | # A module can be listed more than once in obj-m resulting in | 1119 | # A module can be listed more than once in obj-m resulting in |
| 1117 | # duplicate lines in modules.order files. Those are removed | 1120 | # duplicate lines in modules.order files. Those are removed |
| 1118 | # using awk while concatenating to the final file. | 1121 | # using awk while concatenating to the final file. |
| 1119 | 1122 | ||
| 1120 | PHONY += modules | 1123 | PHONY += modules |
| 1121 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) | 1124 | modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) |
| 1122 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order | 1125 | $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order |
| 1123 | @$(kecho) ' Building modules, stage 2.'; | 1126 | @$(kecho) ' Building modules, stage 2.'; |
| 1124 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1127 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1125 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild | 1128 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild |
| 1126 | 1129 | ||
| 1127 | 1130 | ||
| 1128 | # Target to prepare building external modules | 1131 | # Target to prepare building external modules |
| 1129 | PHONY += modules_prepare | 1132 | PHONY += modules_prepare |
| 1130 | modules_prepare: prepare scripts | 1133 | modules_prepare: prepare scripts |
| 1131 | 1134 | ||
| 1132 | # Target to install modules | 1135 | # Target to install modules |
| 1133 | PHONY += modules_install | 1136 | PHONY += modules_install |
| 1134 | modules_install: _modinst_ _modinst_post | 1137 | modules_install: _modinst_ _modinst_post |
| 1135 | 1138 | ||
| 1136 | PHONY += _modinst_ | 1139 | PHONY += _modinst_ |
| 1137 | _modinst_: | 1140 | _modinst_: |
| 1138 | @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ | 1141 | @if [ -z "`$(DEPMOD) -V 2>/dev/null | grep module-init-tools`" ]; then \ |
| 1139 | echo "Warning: you may need to install module-init-tools"; \ | 1142 | echo "Warning: you may need to install module-init-tools"; \ |
| 1140 | echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ | 1143 | echo "See http://www.codemonkey.org.uk/docs/post-halloween-2.6.txt";\ |
| 1141 | sleep 1; \ | 1144 | sleep 1; \ |
| 1142 | fi | 1145 | fi |
| 1143 | @rm -rf $(MODLIB)/kernel | 1146 | @rm -rf $(MODLIB)/kernel |
| 1144 | @rm -f $(MODLIB)/source | 1147 | @rm -f $(MODLIB)/source |
| 1145 | @mkdir -p $(MODLIB)/kernel | 1148 | @mkdir -p $(MODLIB)/kernel |
| 1146 | @ln -s $(srctree) $(MODLIB)/source | 1149 | @ln -s $(srctree) $(MODLIB)/source |
| 1147 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ | 1150 | @if [ ! $(objtree) -ef $(MODLIB)/build ]; then \ |
| 1148 | rm -f $(MODLIB)/build ; \ | 1151 | rm -f $(MODLIB)/build ; \ |
| 1149 | ln -s $(objtree) $(MODLIB)/build ; \ | 1152 | ln -s $(objtree) $(MODLIB)/build ; \ |
| 1150 | fi | 1153 | fi |
| 1151 | @cp -f $(objtree)/modules.order $(MODLIB)/ | 1154 | @cp -f $(objtree)/modules.order $(MODLIB)/ |
| 1152 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1155 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
| 1153 | 1156 | ||
| 1154 | # This depmod is only for convenience to give the initial | 1157 | # This depmod is only for convenience to give the initial |
| 1155 | # boot a modules.dep even before / is mounted read-write. However the | 1158 | # boot a modules.dep even before / is mounted read-write. However the |
| 1156 | # boot script depmod is the master version. | 1159 | # boot script depmod is the master version. |
| 1157 | PHONY += _modinst_post | 1160 | PHONY += _modinst_post |
| 1158 | _modinst_post: _modinst_ | 1161 | _modinst_post: _modinst_ |
| 1159 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst | 1162 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst |
| 1160 | $(call cmd,depmod) | 1163 | $(call cmd,depmod) |
| 1161 | 1164 | ||
| 1162 | else # CONFIG_MODULES | 1165 | else # CONFIG_MODULES |
| 1163 | 1166 | ||
| 1164 | # Modules not configured | 1167 | # Modules not configured |
| 1165 | # --------------------------------------------------------------------------- | 1168 | # --------------------------------------------------------------------------- |
| 1166 | 1169 | ||
| 1167 | modules modules_install: FORCE | 1170 | modules modules_install: FORCE |
| 1168 | @echo | 1171 | @echo |
| 1169 | @echo "The present kernel configuration has modules disabled." | 1172 | @echo "The present kernel configuration has modules disabled." |
| 1170 | @echo "Type 'make config' and enable loadable module support." | 1173 | @echo "Type 'make config' and enable loadable module support." |
| 1171 | @echo "Then build a kernel with module support enabled." | 1174 | @echo "Then build a kernel with module support enabled." |
| 1172 | @echo | 1175 | @echo |
| 1173 | @exit 1 | 1176 | @exit 1 |
| 1174 | 1177 | ||
| 1175 | endif # CONFIG_MODULES | 1178 | endif # CONFIG_MODULES |
| 1176 | 1179 | ||
| 1177 | ### | 1180 | ### |
| 1178 | # Cleaning is done on three levels. | 1181 | # Cleaning is done on three levels. |
| 1179 | # make clean Delete most generated files | 1182 | # make clean Delete most generated files |
| 1180 | # Leave enough to build external modules | 1183 | # Leave enough to build external modules |
| 1181 | # make mrproper Delete the current configuration, and all generated files | 1184 | # make mrproper Delete the current configuration, and all generated files |
| 1182 | # make distclean Remove editor backup files, patch leftover files and the like | 1185 | # make distclean Remove editor backup files, patch leftover files and the like |
| 1183 | 1186 | ||
| 1184 | # Directories & files removed with 'make clean' | 1187 | # Directories & files removed with 'make clean' |
| 1185 | CLEAN_DIRS += $(MODVERDIR) | 1188 | CLEAN_DIRS += $(MODVERDIR) |
| 1186 | CLEAN_FILES += vmlinux System.map \ | 1189 | CLEAN_FILES += vmlinux System.map \ |
| 1187 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map | 1190 | .tmp_kallsyms* .tmp_version .tmp_vmlinux* .tmp_System.map |
| 1188 | 1191 | ||
| 1189 | # Directories & files removed with 'make mrproper' | 1192 | # Directories & files removed with 'make mrproper' |
| 1190 | MRPROPER_DIRS += include/config include2 usr/include | 1193 | MRPROPER_DIRS += include/config include2 usr/include |
| 1191 | MRPROPER_FILES += .config .config.old include/asm .version .old_version \ | 1194 | MRPROPER_FILES += .config .config.old include/asm .version .old_version \ |
| 1192 | include/linux/autoconf.h include/linux/version.h \ | 1195 | include/linux/autoconf.h include/linux/version.h \ |
| 1193 | include/linux/utsrelease.h \ | 1196 | include/linux/utsrelease.h \ |
| 1194 | include/linux/bounds.h include/asm*/asm-offsets.h \ | 1197 | include/linux/bounds.h include/asm*/asm-offsets.h \ |
| 1195 | Module.symvers Module.markers tags TAGS cscope* | 1198 | Module.symvers Module.markers tags TAGS cscope* |
| 1196 | 1199 | ||
| 1197 | # clean - Delete most, but leave enough to build external modules | 1200 | # clean - Delete most, but leave enough to build external modules |
| 1198 | # | 1201 | # |
| 1199 | clean: rm-dirs := $(CLEAN_DIRS) | 1202 | clean: rm-dirs := $(CLEAN_DIRS) |
| 1200 | clean: rm-files := $(CLEAN_FILES) | 1203 | clean: rm-files := $(CLEAN_FILES) |
| 1201 | clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation) | 1204 | clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation) |
| 1202 | 1205 | ||
| 1203 | PHONY += $(clean-dirs) clean archclean | 1206 | PHONY += $(clean-dirs) clean archclean |
| 1204 | $(clean-dirs): | 1207 | $(clean-dirs): |
| 1205 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1208 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
| 1206 | 1209 | ||
| 1207 | clean: archclean $(clean-dirs) | 1210 | clean: archclean $(clean-dirs) |
| 1208 | $(call cmd,rmdirs) | 1211 | $(call cmd,rmdirs) |
| 1209 | $(call cmd,rmfiles) | 1212 | $(call cmd,rmfiles) |
| 1210 | @find . $(RCS_FIND_IGNORE) \ | 1213 | @find . $(RCS_FIND_IGNORE) \ |
| 1211 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1214 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
| 1212 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ | 1215 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \ |
| 1213 | -o -name '*.symtypes' -o -name 'modules.order' \ | 1216 | -o -name '*.symtypes' -o -name 'modules.order' \ |
| 1214 | -o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \ | 1217 | -o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \ |
| 1215 | -type f -print | xargs rm -f | 1218 | -type f -print | xargs rm -f |
| 1216 | 1219 | ||
| 1217 | # mrproper - Delete all generated files, including .config | 1220 | # mrproper - Delete all generated files, including .config |
| 1218 | # | 1221 | # |
| 1219 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) | 1222 | mrproper: rm-dirs := $(wildcard $(MRPROPER_DIRS)) |
| 1220 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) | 1223 | mrproper: rm-files := $(wildcard $(MRPROPER_FILES)) |
| 1221 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) | 1224 | mrproper-dirs := $(addprefix _mrproper_,Documentation/DocBook scripts) |
| 1222 | 1225 | ||
| 1223 | PHONY += $(mrproper-dirs) mrproper archmrproper | 1226 | PHONY += $(mrproper-dirs) mrproper archmrproper |
| 1224 | $(mrproper-dirs): | 1227 | $(mrproper-dirs): |
| 1225 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) | 1228 | $(Q)$(MAKE) $(clean)=$(patsubst _mrproper_%,%,$@) |
| 1226 | 1229 | ||
| 1227 | mrproper: clean archmrproper $(mrproper-dirs) | 1230 | mrproper: clean archmrproper $(mrproper-dirs) |
| 1228 | $(call cmd,rmdirs) | 1231 | $(call cmd,rmdirs) |
| 1229 | $(call cmd,rmfiles) | 1232 | $(call cmd,rmfiles) |
| 1230 | 1233 | ||
| 1231 | # distclean | 1234 | # distclean |
| 1232 | # | 1235 | # |
| 1233 | PHONY += distclean | 1236 | PHONY += distclean |
| 1234 | 1237 | ||
| 1235 | distclean: mrproper | 1238 | distclean: mrproper |
| 1236 | @find $(srctree) $(RCS_FIND_IGNORE) \ | 1239 | @find $(srctree) $(RCS_FIND_IGNORE) \ |
| 1237 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ | 1240 | \( -name '*.orig' -o -name '*.rej' -o -name '*~' \ |
| 1238 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ | 1241 | -o -name '*.bak' -o -name '#*#' -o -name '.*.orig' \ |
| 1239 | -o -name '.*.rej' -o -size 0 \ | 1242 | -o -name '.*.rej' -o -size 0 \ |
| 1240 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ | 1243 | -o -name '*%' -o -name '.*.cmd' -o -name 'core' \) \ |
| 1241 | -type f -print | xargs rm -f | 1244 | -type f -print | xargs rm -f |
| 1242 | 1245 | ||
| 1243 | 1246 | ||
| 1244 | # Packaging of the kernel to various formats | 1247 | # Packaging of the kernel to various formats |
| 1245 | # --------------------------------------------------------------------------- | 1248 | # --------------------------------------------------------------------------- |
| 1246 | # rpm target kept for backward compatibility | 1249 | # rpm target kept for backward compatibility |
| 1247 | package-dir := $(srctree)/scripts/package | 1250 | package-dir := $(srctree)/scripts/package |
| 1248 | 1251 | ||
| 1249 | %pkg: include/config/kernel.release FORCE | 1252 | %pkg: include/config/kernel.release FORCE |
| 1250 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1253 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
| 1251 | rpm: include/config/kernel.release FORCE | 1254 | rpm: include/config/kernel.release FORCE |
| 1252 | $(Q)$(MAKE) $(build)=$(package-dir) $@ | 1255 | $(Q)$(MAKE) $(build)=$(package-dir) $@ |
| 1253 | 1256 | ||
| 1254 | 1257 | ||
| 1255 | # Brief documentation of the typical targets used | 1258 | # Brief documentation of the typical targets used |
| 1256 | # --------------------------------------------------------------------------- | 1259 | # --------------------------------------------------------------------------- |
| 1257 | 1260 | ||
| 1258 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) | 1261 | boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig) |
| 1259 | boards := $(notdir $(boards)) | 1262 | boards := $(notdir $(boards)) |
| 1260 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) | 1263 | board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig)) |
| 1261 | board-dirs := $(sort $(notdir $(board-dirs:/=))) | 1264 | board-dirs := $(sort $(notdir $(board-dirs:/=))) |
| 1262 | 1265 | ||
| 1263 | help: | 1266 | help: |
| 1264 | @echo 'Cleaning targets:' | 1267 | @echo 'Cleaning targets:' |
| 1265 | @echo ' clean - Remove most generated files but keep the config and' | 1268 | @echo ' clean - Remove most generated files but keep the config and' |
| 1266 | @echo ' enough build support to build external modules' | 1269 | @echo ' enough build support to build external modules' |
| 1267 | @echo ' mrproper - Remove all generated files + config + various backup files' | 1270 | @echo ' mrproper - Remove all generated files + config + various backup files' |
| 1268 | @echo ' distclean - mrproper + remove editor backup and patch files' | 1271 | @echo ' distclean - mrproper + remove editor backup and patch files' |
| 1269 | @echo '' | 1272 | @echo '' |
| 1270 | @echo 'Configuration targets:' | 1273 | @echo 'Configuration targets:' |
| 1271 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help | 1274 | @$(MAKE) -f $(srctree)/scripts/kconfig/Makefile help |
| 1272 | @echo '' | 1275 | @echo '' |
| 1273 | @echo 'Other generic targets:' | 1276 | @echo 'Other generic targets:' |
| 1274 | @echo ' all - Build all targets marked with [*]' | 1277 | @echo ' all - Build all targets marked with [*]' |
| 1275 | @echo '* vmlinux - Build the bare kernel' | 1278 | @echo '* vmlinux - Build the bare kernel' |
| 1276 | @echo '* modules - Build all modules' | 1279 | @echo '* modules - Build all modules' |
| 1277 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' | 1280 | @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)' |
| 1278 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' | 1281 | @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH' |
| 1279 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' | 1282 | @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)' |
| 1280 | @echo ' dir/ - Build all files in dir and below' | 1283 | @echo ' dir/ - Build all files in dir and below' |
| 1281 | @echo ' dir/file.[ois] - Build specified target only' | 1284 | @echo ' dir/file.[ois] - Build specified target only' |
| 1282 | @echo ' dir/file.ko - Build module including final link' | 1285 | @echo ' dir/file.ko - Build module including final link' |
| 1283 | @echo ' prepare - Set up for building external modules' | 1286 | @echo ' prepare - Set up for building external modules' |
| 1284 | @echo ' tags/TAGS - Generate tags file for editors' | 1287 | @echo ' tags/TAGS - Generate tags file for editors' |
| 1285 | @echo ' cscope - Generate cscope index' | 1288 | @echo ' cscope - Generate cscope index' |
| 1286 | @echo ' kernelrelease - Output the release version string' | 1289 | @echo ' kernelrelease - Output the release version string' |
| 1287 | @echo ' kernelversion - Output the version stored in Makefile' | 1290 | @echo ' kernelversion - Output the version stored in Makefile' |
| 1288 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ | 1291 | @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \ |
| 1289 | echo ' (default: $(INSTALL_HDR_PATH))'; \ | 1292 | echo ' (default: $(INSTALL_HDR_PATH))'; \ |
| 1290 | echo '' | 1293 | echo '' |
| 1291 | @echo 'Static analysers' | 1294 | @echo 'Static analysers' |
| 1292 | @echo ' checkstack - Generate a list of stack hogs' | 1295 | @echo ' checkstack - Generate a list of stack hogs' |
| 1293 | @echo ' namespacecheck - Name space analysis on compiled kernel' | 1296 | @echo ' namespacecheck - Name space analysis on compiled kernel' |
| 1294 | @echo ' versioncheck - Sanity check on version.h usage' | 1297 | @echo ' versioncheck - Sanity check on version.h usage' |
| 1295 | @echo ' includecheck - Check for duplicate included header files' | 1298 | @echo ' includecheck - Check for duplicate included header files' |
| 1296 | @echo ' export_report - List the usages of all exported symbols' | 1299 | @echo ' export_report - List the usages of all exported symbols' |
| 1297 | @echo ' headers_check - Sanity check on exported headers' | 1300 | @echo ' headers_check - Sanity check on exported headers' |
| 1298 | @echo ' headerdep - Detect inclusion cycles in headers'; \ | 1301 | @echo ' headerdep - Detect inclusion cycles in headers'; \ |
| 1299 | echo '' | 1302 | echo '' |
| 1300 | @echo 'Kernel packaging:' | 1303 | @echo 'Kernel packaging:' |
| 1301 | @$(MAKE) $(build)=$(package-dir) help | 1304 | @$(MAKE) $(build)=$(package-dir) help |
| 1302 | @echo '' | 1305 | @echo '' |
| 1303 | @echo 'Documentation targets:' | 1306 | @echo 'Documentation targets:' |
| 1304 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp | 1307 | @$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp |
| 1305 | @echo '' | 1308 | @echo '' |
| 1306 | @echo 'Architecture specific targets ($(SRCARCH)):' | 1309 | @echo 'Architecture specific targets ($(SRCARCH)):' |
| 1307 | @$(if $(archhelp),$(archhelp),\ | 1310 | @$(if $(archhelp),$(archhelp),\ |
| 1308 | echo ' No architecture specific help defined for $(SRCARCH)') | 1311 | echo ' No architecture specific help defined for $(SRCARCH)') |
| 1309 | @echo '' | 1312 | @echo '' |
| 1310 | @$(if $(boards), \ | 1313 | @$(if $(boards), \ |
| 1311 | $(foreach b, $(boards), \ | 1314 | $(foreach b, $(boards), \ |
| 1312 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ | 1315 | printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \ |
| 1313 | echo '') | 1316 | echo '') |
| 1314 | @$(if $(board-dirs), \ | 1317 | @$(if $(board-dirs), \ |
| 1315 | $(foreach b, $(board-dirs), \ | 1318 | $(foreach b, $(board-dirs), \ |
| 1316 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ | 1319 | printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \ |
| 1317 | printf " %-16s - Show all of the above\\n" help-boards; \ | 1320 | printf " %-16s - Show all of the above\\n" help-boards; \ |
| 1318 | echo '') | 1321 | echo '') |
| 1319 | 1322 | ||
| 1320 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' | 1323 | @echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build' |
| 1321 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' | 1324 | @echo ' make V=2 [targets] 2 => give reason for rebuild of target' |
| 1322 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' | 1325 | @echo ' make O=dir [targets] Locate all output files in "dir", including .config' |
| 1323 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' | 1326 | @echo ' make C=1 [targets] Check all c source with $$CHECK (sparse by default)' |
| 1324 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' | 1327 | @echo ' make C=2 [targets] Force check of all c source with $$CHECK' |
| 1325 | @echo '' | 1328 | @echo '' |
| 1326 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' | 1329 | @echo 'Execute "make" or "make all" to build all targets marked with [*] ' |
| 1327 | @echo 'For further info see the ./README file' | 1330 | @echo 'For further info see the ./README file' |
| 1328 | 1331 | ||
| 1329 | 1332 | ||
| 1330 | help-board-dirs := $(addprefix help-,$(board-dirs)) | 1333 | help-board-dirs := $(addprefix help-,$(board-dirs)) |
| 1331 | 1334 | ||
| 1332 | help-boards: $(help-board-dirs) | 1335 | help-boards: $(help-board-dirs) |
| 1333 | 1336 | ||
| 1334 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) | 1337 | boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig)) |
| 1335 | 1338 | ||
| 1336 | $(help-board-dirs): help-%: | 1339 | $(help-board-dirs): help-%: |
| 1337 | @echo 'Architecture specific targets ($(SRCARCH) $*):' | 1340 | @echo 'Architecture specific targets ($(SRCARCH) $*):' |
| 1338 | @$(if $(boards-per-dir), \ | 1341 | @$(if $(boards-per-dir), \ |
| 1339 | $(foreach b, $(boards-per-dir), \ | 1342 | $(foreach b, $(boards-per-dir), \ |
| 1340 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ | 1343 | printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \ |
| 1341 | echo '') | 1344 | echo '') |
| 1342 | 1345 | ||
| 1343 | 1346 | ||
| 1344 | # Documentation targets | 1347 | # Documentation targets |
| 1345 | # --------------------------------------------------------------------------- | 1348 | # --------------------------------------------------------------------------- |
| 1346 | %docs: scripts_basic FORCE | 1349 | %docs: scripts_basic FORCE |
| 1347 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ | 1350 | $(Q)$(MAKE) $(build)=Documentation/DocBook $@ |
| 1348 | 1351 | ||
| 1349 | else # KBUILD_EXTMOD | 1352 | else # KBUILD_EXTMOD |
| 1350 | 1353 | ||
| 1351 | ### | 1354 | ### |
| 1352 | # External module support. | 1355 | # External module support. |
| 1353 | # When building external modules the kernel used as basis is considered | 1356 | # When building external modules the kernel used as basis is considered |
| 1354 | # read-only, and no consistency checks are made and the make | 1357 | # read-only, and no consistency checks are made and the make |
| 1355 | # system is not used on the basis kernel. If updates are required | 1358 | # system is not used on the basis kernel. If updates are required |
| 1356 | # in the basis kernel ordinary make commands (without M=...) must | 1359 | # in the basis kernel ordinary make commands (without M=...) must |
| 1357 | # be used. | 1360 | # be used. |
| 1358 | # | 1361 | # |
| 1359 | # The following are the only valid targets when building external | 1362 | # The following are the only valid targets when building external |
| 1360 | # modules. | 1363 | # modules. |
| 1361 | # make M=dir clean Delete all automatically generated files | 1364 | # make M=dir clean Delete all automatically generated files |
| 1362 | # make M=dir modules Make all modules in specified dir | 1365 | # make M=dir modules Make all modules in specified dir |
| 1363 | # make M=dir Same as 'make M=dir modules' | 1366 | # make M=dir Same as 'make M=dir modules' |
| 1364 | # make M=dir modules_install | 1367 | # make M=dir modules_install |
| 1365 | # Install the modules built in the module directory | 1368 | # Install the modules built in the module directory |
| 1366 | # Assumes install directory is already created | 1369 | # Assumes install directory is already created |
| 1367 | 1370 | ||
| 1368 | # We are always building modules | 1371 | # We are always building modules |
| 1369 | KBUILD_MODULES := 1 | 1372 | KBUILD_MODULES := 1 |
| 1370 | PHONY += crmodverdir | 1373 | PHONY += crmodverdir |
| 1371 | crmodverdir: | 1374 | crmodverdir: |
| 1372 | $(cmd_crmodverdir) | 1375 | $(cmd_crmodverdir) |
| 1373 | 1376 | ||
| 1374 | PHONY += $(objtree)/Module.symvers | 1377 | PHONY += $(objtree)/Module.symvers |
| 1375 | $(objtree)/Module.symvers: | 1378 | $(objtree)/Module.symvers: |
| 1376 | @test -e $(objtree)/Module.symvers || ( \ | 1379 | @test -e $(objtree)/Module.symvers || ( \ |
| 1377 | echo; \ | 1380 | echo; \ |
| 1378 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ | 1381 | echo " WARNING: Symbol version dump $(objtree)/Module.symvers"; \ |
| 1379 | echo " is missing; modules will have no dependencies and modversions."; \ | 1382 | echo " is missing; modules will have no dependencies and modversions."; \ |
| 1380 | echo ) | 1383 | echo ) |
| 1381 | 1384 | ||
| 1382 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) | 1385 | module-dirs := $(addprefix _module_,$(KBUILD_EXTMOD)) |
| 1383 | PHONY += $(module-dirs) modules | 1386 | PHONY += $(module-dirs) modules |
| 1384 | $(module-dirs): crmodverdir $(objtree)/Module.symvers | 1387 | $(module-dirs): crmodverdir $(objtree)/Module.symvers |
| 1385 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) | 1388 | $(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@) |
| 1386 | 1389 | ||
| 1387 | modules: $(module-dirs) | 1390 | modules: $(module-dirs) |
| 1388 | @$(kecho) ' Building modules, stage 2.'; | 1391 | @$(kecho) ' Building modules, stage 2.'; |
| 1389 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1392 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1390 | 1393 | ||
| 1391 | PHONY += modules_install | 1394 | PHONY += modules_install |
| 1392 | modules_install: _emodinst_ _emodinst_post | 1395 | modules_install: _emodinst_ _emodinst_post |
| 1393 | 1396 | ||
| 1394 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) | 1397 | install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra) |
| 1395 | PHONY += _emodinst_ | 1398 | PHONY += _emodinst_ |
| 1396 | _emodinst_: | 1399 | _emodinst_: |
| 1397 | $(Q)mkdir -p $(MODLIB)/$(install-dir) | 1400 | $(Q)mkdir -p $(MODLIB)/$(install-dir) |
| 1398 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst | 1401 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst |
| 1399 | 1402 | ||
| 1400 | PHONY += _emodinst_post | 1403 | PHONY += _emodinst_post |
| 1401 | _emodinst_post: _emodinst_ | 1404 | _emodinst_post: _emodinst_ |
| 1402 | $(call cmd,depmod) | 1405 | $(call cmd,depmod) |
| 1403 | 1406 | ||
| 1404 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) | 1407 | clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD)) |
| 1405 | 1408 | ||
| 1406 | PHONY += $(clean-dirs) clean | 1409 | PHONY += $(clean-dirs) clean |
| 1407 | $(clean-dirs): | 1410 | $(clean-dirs): |
| 1408 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) | 1411 | $(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@) |
| 1409 | 1412 | ||
| 1410 | clean: rm-dirs := $(MODVERDIR) | 1413 | clean: rm-dirs := $(MODVERDIR) |
| 1411 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers | 1414 | clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers |
| 1412 | clean: $(clean-dirs) | 1415 | clean: $(clean-dirs) |
| 1413 | $(call cmd,rmdirs) | 1416 | $(call cmd,rmdirs) |
| 1414 | $(call cmd,rmfiles) | 1417 | $(call cmd,rmfiles) |
| 1415 | @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ | 1418 | @find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \ |
| 1416 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ | 1419 | \( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \ |
| 1417 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ | 1420 | -o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \ |
| 1418 | -type f -print | xargs rm -f | 1421 | -type f -print | xargs rm -f |
| 1419 | 1422 | ||
| 1420 | help: | 1423 | help: |
| 1421 | @echo ' Building external modules.' | 1424 | @echo ' Building external modules.' |
| 1422 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' | 1425 | @echo ' Syntax: make -C path/to/kernel/src M=$$PWD target' |
| 1423 | @echo '' | 1426 | @echo '' |
| 1424 | @echo ' modules - default target, build the module(s)' | 1427 | @echo ' modules - default target, build the module(s)' |
| 1425 | @echo ' modules_install - install the module' | 1428 | @echo ' modules_install - install the module' |
| 1426 | @echo ' clean - remove generated files in module directory only' | 1429 | @echo ' clean - remove generated files in module directory only' |
| 1427 | @echo '' | 1430 | @echo '' |
| 1428 | 1431 | ||
| 1429 | # Dummies... | 1432 | # Dummies... |
| 1430 | PHONY += prepare scripts | 1433 | PHONY += prepare scripts |
| 1431 | prepare: ; | 1434 | prepare: ; |
| 1432 | scripts: ; | 1435 | scripts: ; |
| 1433 | endif # KBUILD_EXTMOD | 1436 | endif # KBUILD_EXTMOD |
| 1434 | 1437 | ||
| 1435 | # Generate tags for editors | 1438 | # Generate tags for editors |
| 1436 | # --------------------------------------------------------------------------- | 1439 | # --------------------------------------------------------------------------- |
| 1437 | quiet_cmd_tags = GEN $@ | 1440 | quiet_cmd_tags = GEN $@ |
| 1438 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ | 1441 | cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@ |
| 1439 | 1442 | ||
| 1440 | tags TAGS cscope: FORCE | 1443 | tags TAGS cscope: FORCE |
| 1441 | $(call cmd,tags) | 1444 | $(call cmd,tags) |
| 1442 | 1445 | ||
| 1443 | # Scripts to check various things for consistency | 1446 | # Scripts to check various things for consistency |
| 1444 | # --------------------------------------------------------------------------- | 1447 | # --------------------------------------------------------------------------- |
| 1445 | 1448 | ||
| 1446 | includecheck: | 1449 | includecheck: |
| 1447 | find * $(RCS_FIND_IGNORE) \ | 1450 | find * $(RCS_FIND_IGNORE) \ |
| 1448 | -name '*.[hcS]' -type f -print | sort \ | 1451 | -name '*.[hcS]' -type f -print | sort \ |
| 1449 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl | 1452 | | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl |
| 1450 | 1453 | ||
| 1451 | versioncheck: | 1454 | versioncheck: |
| 1452 | find * $(RCS_FIND_IGNORE) \ | 1455 | find * $(RCS_FIND_IGNORE) \ |
| 1453 | -name '*.[hcS]' -type f -print | sort \ | 1456 | -name '*.[hcS]' -type f -print | sort \ |
| 1454 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl | 1457 | | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl |
| 1455 | 1458 | ||
| 1456 | namespacecheck: | 1459 | namespacecheck: |
| 1457 | $(PERL) $(srctree)/scripts/namespace.pl | 1460 | $(PERL) $(srctree)/scripts/namespace.pl |
| 1458 | 1461 | ||
| 1459 | export_report: | 1462 | export_report: |
| 1460 | $(PERL) $(srctree)/scripts/export_report.pl | 1463 | $(PERL) $(srctree)/scripts/export_report.pl |
| 1461 | 1464 | ||
| 1462 | endif #ifeq ($(config-targets),1) | 1465 | endif #ifeq ($(config-targets),1) |
| 1463 | endif #ifeq ($(mixed-targets),1) | 1466 | endif #ifeq ($(mixed-targets),1) |
| 1464 | 1467 | ||
| 1465 | PHONY += checkstack kernelrelease kernelversion | 1468 | PHONY += checkstack kernelrelease kernelversion |
| 1466 | 1469 | ||
| 1467 | # UML needs a little special treatment here. It wants to use the host | 1470 | # UML needs a little special treatment here. It wants to use the host |
| 1468 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone | 1471 | # toolchain, so needs $(SUBARCH) passed to checkstack.pl. Everyone |
| 1469 | # else wants $(ARCH), including people doing cross-builds, which means | 1472 | # else wants $(ARCH), including people doing cross-builds, which means |
| 1470 | # that $(SUBARCH) doesn't work here. | 1473 | # that $(SUBARCH) doesn't work here. |
| 1471 | ifeq ($(ARCH), um) | 1474 | ifeq ($(ARCH), um) |
| 1472 | CHECKSTACK_ARCH := $(SUBARCH) | 1475 | CHECKSTACK_ARCH := $(SUBARCH) |
| 1473 | else | 1476 | else |
| 1474 | CHECKSTACK_ARCH := $(ARCH) | 1477 | CHECKSTACK_ARCH := $(ARCH) |
| 1475 | endif | 1478 | endif |
| 1476 | checkstack: | 1479 | checkstack: |
| 1477 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ | 1480 | $(OBJDUMP) -d vmlinux $$(find . -name '*.ko') | \ |
| 1478 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) | 1481 | $(PERL) $(src)/scripts/checkstack.pl $(CHECKSTACK_ARCH) |
| 1479 | 1482 | ||
| 1480 | kernelrelease: | 1483 | kernelrelease: |
| 1481 | $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ | 1484 | $(if $(wildcard include/config/kernel.release), $(Q)echo $(KERNELRELEASE), \ |
| 1482 | $(error kernelrelease not valid - run 'make prepare' to update it)) | 1485 | $(error kernelrelease not valid - run 'make prepare' to update it)) |
| 1483 | kernelversion: | 1486 | kernelversion: |
| 1484 | @echo $(KERNELVERSION) | 1487 | @echo $(KERNELVERSION) |
| 1485 | 1488 | ||
| 1486 | # Single targets | 1489 | # Single targets |
| 1487 | # --------------------------------------------------------------------------- | 1490 | # --------------------------------------------------------------------------- |
| 1488 | # Single targets are compatible with: | 1491 | # Single targets are compatible with: |
| 1489 | # - build with mixed source and output | 1492 | # - build with mixed source and output |
| 1490 | # - build with separate output dir 'make O=...' | 1493 | # - build with separate output dir 'make O=...' |
| 1491 | # - external modules | 1494 | # - external modules |
| 1492 | # | 1495 | # |
| 1493 | # target-dir => where to store outputfile | 1496 | # target-dir => where to store outputfile |
| 1494 | # build-dir => directory in kernel source tree to use | 1497 | # build-dir => directory in kernel source tree to use |
| 1495 | 1498 | ||
| 1496 | ifeq ($(KBUILD_EXTMOD),) | 1499 | ifeq ($(KBUILD_EXTMOD),) |
| 1497 | build-dir = $(patsubst %/,%,$(dir $@)) | 1500 | build-dir = $(patsubst %/,%,$(dir $@)) |
| 1498 | target-dir = $(dir $@) | 1501 | target-dir = $(dir $@) |
| 1499 | else | 1502 | else |
| 1500 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) | 1503 | zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@))) |
| 1501 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) | 1504 | build-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash)) |
| 1502 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) | 1505 | target-dir = $(if $(KBUILD_EXTMOD),$(dir $<),$(dir $@)) |
| 1503 | endif | 1506 | endif |
| 1504 | 1507 | ||
| 1505 | %.s: %.c prepare scripts FORCE | 1508 | %.s: %.c prepare scripts FORCE |
| 1506 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1509 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1507 | %.i: %.c prepare scripts FORCE | 1510 | %.i: %.c prepare scripts FORCE |
| 1508 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1511 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1509 | %.o: %.c prepare scripts FORCE | 1512 | %.o: %.c prepare scripts FORCE |
| 1510 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1513 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1511 | %.lst: %.c prepare scripts FORCE | 1514 | %.lst: %.c prepare scripts FORCE |
| 1512 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1515 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1513 | %.s: %.S prepare scripts FORCE | 1516 | %.s: %.S prepare scripts FORCE |
| 1514 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1517 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1515 | %.o: %.S prepare scripts FORCE | 1518 | %.o: %.S prepare scripts FORCE |
| 1516 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1519 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1517 | %.symtypes: %.c prepare scripts FORCE | 1520 | %.symtypes: %.c prepare scripts FORCE |
| 1518 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) | 1521 | $(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@) |
| 1519 | 1522 | ||
| 1520 | # Modules | 1523 | # Modules |
| 1521 | /: prepare scripts FORCE | 1524 | /: prepare scripts FORCE |
| 1522 | $(cmd_crmodverdir) | 1525 | $(cmd_crmodverdir) |
| 1523 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1526 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1524 | $(build)=$(build-dir) | 1527 | $(build)=$(build-dir) |
| 1525 | %/: prepare scripts FORCE | 1528 | %/: prepare scripts FORCE |
| 1526 | $(cmd_crmodverdir) | 1529 | $(cmd_crmodverdir) |
| 1527 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1530 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1528 | $(build)=$(build-dir) | 1531 | $(build)=$(build-dir) |
| 1529 | %.ko: prepare scripts FORCE | 1532 | %.ko: prepare scripts FORCE |
| 1530 | $(cmd_crmodverdir) | 1533 | $(cmd_crmodverdir) |
| 1531 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ | 1534 | $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \ |
| 1532 | $(build)=$(build-dir) $(@:.ko=.o) | 1535 | $(build)=$(build-dir) $(@:.ko=.o) |
| 1533 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost | 1536 | $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost |
| 1534 | 1537 | ||
| 1535 | # FIXME Should go into a make.lib or something | 1538 | # FIXME Should go into a make.lib or something |
| 1536 | # =========================================================================== | 1539 | # =========================================================================== |
| 1537 | 1540 | ||
| 1538 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) | 1541 | quiet_cmd_rmdirs = $(if $(wildcard $(rm-dirs)),CLEAN $(wildcard $(rm-dirs))) |
| 1539 | cmd_rmdirs = rm -rf $(rm-dirs) | 1542 | cmd_rmdirs = rm -rf $(rm-dirs) |
| 1540 | 1543 | ||
| 1541 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) | 1544 | quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files))) |
| 1542 | cmd_rmfiles = rm -f $(rm-files) | 1545 | cmd_rmfiles = rm -f $(rm-files) |
| 1543 | 1546 | ||
| 1544 | # Run depmod only if we have System.map and depmod is executable | 1547 | # Run depmod only if we have System.map and depmod is executable |
| 1545 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) | 1548 | quiet_cmd_depmod = DEPMOD $(KERNELRELEASE) |
| 1546 | cmd_depmod = \ | 1549 | cmd_depmod = \ |
| 1547 | if [ -r System.map -a -x $(DEPMOD) ]; then \ | 1550 | if [ -r System.map -a -x $(DEPMOD) ]; then \ |
| 1548 | $(DEPMOD) -ae -F System.map \ | 1551 | $(DEPMOD) -ae -F System.map \ |
| 1549 | $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) ) \ | 1552 | $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) ) \ |
| 1550 | $(KERNELRELEASE); \ | 1553 | $(KERNELRELEASE); \ |
| 1551 | fi | 1554 | fi |
| 1552 | 1555 | ||
| 1553 | # Create temporary dir for module support files | 1556 | # Create temporary dir for module support files |
| 1554 | # clean it up only when building all modules | 1557 | # clean it up only when building all modules |
| 1555 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ | 1558 | cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \ |
| 1556 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) | 1559 | $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*) |
| 1557 | 1560 | ||
| 1558 | a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ | 1561 | a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \ |
| 1559 | $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ | 1562 | $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \ |
| 1560 | $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) | 1563 | $(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o) |
| 1561 | 1564 | ||
| 1562 | quiet_cmd_as_o_S = AS $@ | 1565 | quiet_cmd_as_o_S = AS $@ |
| 1563 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< | 1566 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< |
| 1564 | 1567 | ||
| 1565 | # read all saved command lines | 1568 | # read all saved command lines |
| 1566 | 1569 | ||
| 1567 | targets := $(wildcard $(sort $(targets))) | 1570 | targets := $(wildcard $(sort $(targets))) |
| 1568 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) | 1571 | cmd_files := $(wildcard .*.cmd $(foreach f,$(targets),$(dir $(f)).$(notdir $(f)).cmd)) |
| 1569 | 1572 | ||
| 1570 | ifneq ($(cmd_files),) | 1573 | ifneq ($(cmd_files),) |
| 1571 | $(cmd_files): ; # Do not try to update included dependency files | 1574 | $(cmd_files): ; # Do not try to update included dependency files |
| 1572 | include $(cmd_files) | 1575 | include $(cmd_files) |
| 1573 | endif | 1576 | endif |
| 1574 | 1577 | ||
| 1575 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir | 1578 | # Shorthand for $(Q)$(MAKE) -f scripts/Makefile.clean obj=dir |
| 1576 | # Usage: | 1579 | # Usage: |
| 1577 | # $(Q)$(MAKE) $(clean)=dir | 1580 | # $(Q)$(MAKE) $(clean)=dir |
| 1578 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj | 1581 | clean := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.clean obj |
| 1579 | 1582 | ||
| 1580 | endif # skip-makefile | 1583 | endif # skip-makefile |
| 1581 | 1584 | ||
| 1582 | PHONY += FORCE | 1585 | PHONY += FORCE |
| 1583 | FORCE: | 1586 | FORCE: |
| 1584 | 1587 | ||
| 1585 | # Declare the contents of the .PHONY variable as phony. We keep that | 1588 | # Declare the contents of the .PHONY variable as phony. We keep that |
| 1586 | # information in a variable se we can use it in if_changed and friends. | 1589 | # information in a variable se we can use it in if_changed and friends. |
| 1587 | .PHONY: $(PHONY) | 1590 | .PHONY: $(PHONY) |
| 1588 | 1591 |