VERSION = 2
PATCHLEVEL = 6
-SUBLEVEL = 22
-EXTRAVERSION =
-NAME = Holy Dancing Manatees, Batman!
+SUBLEVEL = 29
+EXTRAVERSION = -rc1
+NAME = Erotic Pickled Herring
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
# Do not:
# o use make's built-in rules and variables
-# (this increases performance and avoid hard-to-debug behavour);
+# (this increases performance and avoids hard-to-debug behaviour);
# o print "Entering directory ...";
MAKEFLAGS += -rR --no-print-directory
PHONY := _all
_all:
+# Cancel implicit rules on top Makefile
+$(CURDIR)/Makefile Makefile: ;
+
ifneq ($(KBUILD_OUTPUT),)
# Invoke a second make in the output directory, passing relevant variables
# check that the output directory actually exists
$(if $(KBUILD_OUTPUT),, \
$(error output directory "$(saved-output)" does not exist))
-PHONY += $(MAKECMDGOALS)
+PHONY += $(MAKECMDGOALS) sub-make
+
+$(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
+ $(Q)@:
-$(filter-out _all,$(MAKECMDGOALS)) _all:
+sub-make: FORCE
$(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
KBUILD_SRC=$(CURDIR) \
- KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@
+ KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile \
+ $(filter-out _all sub-make,$(MAKECMDGOALS))
# Leave processing to above invocation of make
skip-makefile := 1
SUBARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/ \
-e s/arm.*/arm/ -e s/sa110/arm/ \
-e s/s390x/s390/ -e s/parisc64/parisc/ \
- -e s/ppc.*/powerpc/ -e s/mips.*/mips/ )
+ -e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
+ -e s/sh.*/sh/ )
# Cross compiling and selecting different set of gcc/bin-utils
# ---------------------------------------------------------------------------
# Alternatively CROSS_COMPILE can be set in the environment.
# Default value for CROSS_COMPILE is not to prefix executables
# Note: Some architectures assign CROSS_COMPILE in their arch/*/Makefile
-
+export KBUILD_BUILDHOST := $(SUBARCH)
ARCH ?= $(SUBARCH)
CROSS_COMPILE ?=
# Architecture as present in compile.h
-UTS_MACHINE := $(ARCH)
+UTS_MACHINE := $(ARCH)
+SRCARCH := $(ARCH)
+
+# Additional ARCH settings for x86
+ifeq ($(ARCH),i386)
+ SRCARCH := x86
+endif
+ifeq ($(ARCH),x86_64)
+ SRCARCH := x86
+endif
+
+# Additional ARCH settings for sparc
+ifeq ($(ARCH),sparc64)
+ SRCARCH := sparc
+endif
+
+# Where to locate arch specific headers
+hdr-arch := $(SRCARCH)
KCONFIG_CONFIG ?= .config
# Look for make include files relative to root of kernel src
MAKEFLAGS += --include-dir=$(srctree)
-# We need some generic definitions.
+# We need some generic definitions (do not try to remake the file).
+$(srctree)/scripts/Kbuild.include: ;
include $(srctree)/scripts/Kbuild.include
# Make variables (CC, etc...)
PERL = perl
CHECK = sparse
-CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ -Wbitwise $(CF)
+CHECKFLAGS := -D__linux__ -Dlinux -D__STDC__ -Dunix -D__unix__ \
+ -Wbitwise -Wno-return-void $(CF)
MODFLAGS = -DMODULE
CFLAGS_MODULE = $(MODFLAGS)
AFLAGS_MODULE = $(MODFLAGS)
-LDFLAGS_MODULE = -r
+LDFLAGS_MODULE =
CFLAGS_KERNEL =
AFLAGS_KERNEL =
# Needed to be compatible with the O= option
LINUXINCLUDE := -Iinclude \
$(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
- -include include/linux/autoconf.h
+ -I$(srctree)/arch/$(hdr-arch)/include \
+ -include include/linux/autoconf.h
-CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
+KBUILD_CPPFLAGS := -D__KERNEL__
-CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
+KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-fno-strict-aliasing -fno-common \
-Werror-implicit-function-declaration
-AFLAGS := -D__ASSEMBLY__
+KBUILD_AFLAGS := -D__ASSEMBLY__
# Read KERNELRELEASE from include/config/kernel.release (if it exists)
KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
-export ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
+export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE
export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
-export CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
-export CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
-export AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
+export KBUILD_CPPFLAGS NOSTDINC_FLAGS LINUXINCLUDE OBJCOPYFLAGS LDFLAGS
+export KBUILD_CFLAGS CFLAGS_KERNEL CFLAGS_MODULE
+export KBUILD_AFLAGS AFLAGS_KERNEL AFLAGS_MODULE
# When compiling out-of-tree modules, put MODVERDIR in the module
# tree rather than in the kernel tree. The kernel tree might
# Read arch specific Makefile to set KBUILD_DEFCONFIG as needed.
# KBUILD_DEFCONFIG may point out an alternative default configuration
# used for 'make defconfig'
-include $(srctree)/arch/$(ARCH)/Makefile
-export KBUILD_DEFCONFIG
+include $(srctree)/arch/$(SRCARCH)/Makefile
+export KBUILD_DEFCONFIG KBUILD_KCONFIG
-config %config: scripts_basic outputmakefile FORCE
+config: scripts_basic outputmakefile FORCE
+ $(Q)mkdir -p include/linux include/config
+ $(Q)$(MAKE) $(build)=scripts/kconfig $@
+
+%config: scripts_basic outputmakefile FORCE
$(Q)mkdir -p include/linux include/config
$(Q)$(MAKE) $(build)=scripts/kconfig $@
# Objects we will link into vmlinux / subdirs we need to visit
init-y := init/
-drivers-y := drivers/ sound/
+drivers-y := drivers/ sound/ firmware/
net-y := net/
libs-y := lib/
core-y := usr/
all: vmlinux
ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
-CFLAGS += -Os
+KBUILD_CFLAGS += -Os
else
-CFLAGS += -O2
+KBUILD_CFLAGS += -O2
endif
-include $(srctree)/arch/$(ARCH)/Makefile
+include $(srctree)/arch/$(SRCARCH)/Makefile
+
+ifneq (CONFIG_FRAME_WARN,0)
+KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN})
+endif
+
+# Force gcc to behave correct even for buggy distributions
+# Arch Makefiles may override this setting
+KBUILD_CFLAGS += $(call cc-option, -fno-stack-protector)
ifdef CONFIG_FRAME_POINTER
-CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
+KBUILD_CFLAGS += -fno-omit-frame-pointer -fno-optimize-sibling-calls
else
-CFLAGS += -fomit-frame-pointer
+KBUILD_CFLAGS += -fomit-frame-pointer
endif
ifdef CONFIG_DEBUG_INFO
-CFLAGS += -g
+KBUILD_CFLAGS += -g
+KBUILD_AFLAGS += -gdwarf-2
endif
-# Force gcc to behave correct even for buggy distributions
-CFLAGS += $(call cc-option, -fno-stack-protector)
+ifdef CONFIG_FUNCTION_TRACER
+KBUILD_CFLAGS += -pg
+endif
+
+# We trigger additional mismatches with less inlining
+ifdef CONFIG_DEBUG_SECTION_MISMATCH
+KBUILD_CFLAGS += $(call cc-option, -fno-inline-functions-called-once)
+endif
# arch Makefile may override CC so keep this after arch Makefile is included
NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)
CHECKFLAGS += $(NOSTDINC_FLAGS)
# warn about C99 declaration after statement
-CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
+KBUILD_CFLAGS += $(call cc-option,-Wdeclaration-after-statement,)
# disable pointer signed / unsigned warnings in gcc 4.0
-CFLAGS += $(call cc-option,-Wno-pointer-sign,)
+KBUILD_CFLAGS += $(call cc-option,-Wno-pointer-sign,)
+
+# Add user supplied CPPFLAGS, AFLAGS and CFLAGS as the last assignments
+# But warn user when we do so
+warn-assign = \
+$(warning "WARNING: Appending $$K$(1) ($(K$(1))) from $(origin K$(1)) to kernel $$$(1)")
+
+ifneq ($(KCPPFLAGS),)
+ $(call warn-assign,CPPFLAGS)
+ KBUILD_CPPFLAGS += $(KCPPFLAGS)
+endif
+ifneq ($(KAFLAGS),)
+ $(call warn-assign,AFLAGS)
+ KBUILD_AFLAGS += $(KAFLAGS)
+endif
+ifneq ($(KCFLAGS),)
+ $(call warn-assign,CFLAGS)
+ KBUILD_CFLAGS += $(KCFLAGS)
+endif
+
+# Use --build-id when available.
+LDFLAGS_BUILD_ID = $(patsubst -Wl$(comma)%,%,\
+ $(call ld-option, -Wl$(comma)--build-id,))
+LDFLAGS_MODULE += $(LDFLAGS_BUILD_ID)
+LDFLAGS_vmlinux += $(LDFLAGS_BUILD_ID)
# Default kernel image to build when no specific target is given.
# KBUILD_IMAGE may be overruled on the command line or
MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
export MODLIB
-#
-# INSTALL_MOD_STRIP, if defined, will cause modules to be
-# stripped after they are installed. If INSTALL_MOD_STRIP is '1', then
-# the default option --strip-debug will be used. Otherwise,
-# INSTALL_MOD_STRIP will used as the options to the strip command.
+strip-symbols := $(srctree)/scripts/strip-symbols \
+ $(wildcard $(srctree)/arch/$(ARCH)/scripts/strip-symbols)
+#
+# INSTALL_MOD_STRIP, if defined, will cause modules to be stripped while
+# they get installed. If INSTALL_MOD_STRIP is '1', then the default
+# options (see below) will be used. Otherwise, INSTALL_MOD_STRIP will
+# be used as the option(s) to the objcopy command.
ifdef INSTALL_MOD_STRIP
ifeq ($(INSTALL_MOD_STRIP),1)
-mod_strip_cmd = $(STRIP) --strip-debug
+mod_strip_cmd = $(OBJCOPY) --strip-debug
+ifeq ($(CONFIG_KALLSYMS_ALL),$(CONFIG_KALLSYMS_STRIP_GENERATED))
+mod_strip_cmd += --wildcard $(addprefix --strip-symbols ,$(strip-symbols))
+endif
else
-mod_strip_cmd = $(STRIP) $(INSTALL_MOD_STRIP)
+mod_strip_cmd = $(OBJCOPY) $(INSTALL_MOD_STRIP)
endif # INSTALL_MOD_STRIP=1
else
-mod_strip_cmd = true
+mod_strip_cmd = false
endif # INSTALL_MOD_STRIP
export mod_strip_cmd
vmlinux-init := $(head-y) $(init-y)
vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)
vmlinux-all := $(vmlinux-init) $(vmlinux-main)
-vmlinux-lds := arch/$(ARCH)/kernel/vmlinux.lds
+vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds
export KBUILD_VMLINUX_OBJS := $(vmlinux-all)
# Rule to link vmlinux - also used during CONFIG_KALLSYMS
endif
kallsyms.o := .tmp_kallsyms$(last_kallsyms).o
+kallsyms.h := $(wildcard include/config/kallsyms/*.h) $(wildcard include/config/kallsyms/*/*.h)
define verify_kallsyms
$(Q)$(if $($(quiet)cmd_sysmap), \
# Generate .S file with all kernel symbols
quiet_cmd_kallsyms = KSYM $@
- cmd_kallsyms = $(NM) -n $< | $(KALLSYMS) \
- $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) > $@
+ cmd_kallsyms = { test $* -eq 0 || $(NM) -n $<; } \
+ | $(KALLSYMS) $(if $(CONFIG_KALLSYMS_ALL),--all-symbols) >$@
-.tmp_kallsyms1.o .tmp_kallsyms2.o .tmp_kallsyms3.o: %.o: %.S scripts FORCE
+quiet_cmd_kstrip = STRIP $@
+ cmd_kstrip = $(OBJCOPY) --wildcard $(addprefix --strip$(if $(CONFIG_RELOCATABLE),-unneeded)-symbols ,$(filter %/scripts/strip-symbols,$^)) $< $@
+
+$(foreach n,0 1 2 3,.tmp_kallsyms$(n).o): KBUILD_AFLAGS += -Wa,--strip-local-absolute
+$(foreach n,0 1 2 3,.tmp_kallsyms$(n).o): %.o: %.S scripts FORCE
$(call if_changed_dep,as_o_S)
-.tmp_kallsyms%.S: .tmp_vmlinux% $(KALLSYMS)
+ifeq ($(CONFIG_KALLSYMS_STRIP_GENERATED),y)
+strip-ext := .stripped
+endif
+
+.tmp_kallsyms%.S: .tmp_vmlinux%$(strip-ext) $(KALLSYMS) $(kallsyms.h)
$(call cmd,kallsyms)
+# make -jN seems to have problems with intermediate files, see bug #3330.
+.SECONDARY: $(foreach n,1 2 3,.tmp_vmlinux$(n).stripped)
+.tmp_vmlinux%.stripped: .tmp_vmlinux% $(strip-symbols) $(kallsyms.h)
+ $(call cmd,kstrip)
+
+ifneq ($(CONFIG_DEBUG_INFO),y)
+.tmp_vmlinux%: LDFLAGS_vmlinux += -S
+endif
# .tmp_vmlinux1 must be complete except kallsyms, so update vmlinux version
-.tmp_vmlinux1: $(vmlinux-lds) $(vmlinux-all) FORCE
- $(call if_changed_rule,ksym_ld)
+.tmp_vmlinux%: $(vmlinux-lds) $(vmlinux-all) FORCE
+ $(if $(filter 1,$*),$(call if_changed_rule,ksym_ld),$(call if_changed,vmlinux__))
-.tmp_vmlinux2: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms1.o FORCE
- $(call if_changed,vmlinux__)
+.tmp_vmlinux0$(strip-ext):
+ $(Q)echo "placeholder" >$@
-.tmp_vmlinux3: $(vmlinux-lds) $(vmlinux-all) .tmp_kallsyms2.o FORCE
- $(call if_changed,vmlinux__)
+.tmp_vmlinux1: .tmp_kallsyms0.o
+.tmp_vmlinux2: .tmp_kallsyms1.o
+.tmp_vmlinux3: .tmp_kallsyms2.o
# Needs to visit scripts/ before $(KALLSYMS) can be used.
$(KALLSYMS): scripts ;
quiet_cmd_vmlinux-modpost = LD $@
cmd_vmlinux-modpost = $(LD) $(LDFLAGS) -r -o $@ \
$(vmlinux-init) --start-group $(vmlinux-main) --end-group \
- $(filter-out $(vmlinux-init) $(vmlinux-main) $(vmlinux-lds) FORCE ,$^)
+ $(filter-out $(vmlinux-init) $(vmlinux-main) FORCE ,$^)
define rule_vmlinux-modpost
:
+$(call cmd,vmlinux-modpost)
endef
# vmlinux image - including updated kernel symbols
-vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) vmlinux.o FORCE
+vmlinux: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) vmlinux.o $(kallsyms.o) FORCE
ifdef CONFIG_HEADERS_CHECK
$(Q)$(MAKE) -f $(srctree)/Makefile headers_check
endif
+ifdef CONFIG_SAMPLES
+ $(Q)$(MAKE) $(build)=samples
+endif
+ifdef CONFIG_BUILD_DOCSRC
+ $(Q)$(MAKE) $(build)=Documentation
+endif
$(call vmlinux-modpost)
$(call if_changed_rule,vmlinux__)
$(Q)rm -f .old_version
-vmlinux.o: $(vmlinux-lds) $(vmlinux-init) $(vmlinux-main) $(kallsyms.o) FORCE
+# build vmlinux.o first to catch section mismatch errors early
+ifdef CONFIG_KALLSYMS
+.tmp_vmlinux1: vmlinux.o
+endif
+
+modpost-init := $(filter-out init/built-in.o, $(vmlinux-init))
+vmlinux.o: $(modpost-init) $(vmlinux-main) FORCE
$(call if_changed_rule,vmlinux-modpost)
# The actual objects are generated when descending,
# 2) Create the include2 directory, used for the second asm symlink
prepare3: include/config/kernel.release
ifneq ($(KBUILD_SRC),)
- @echo ' Using $(srctree) as source for kernel'
+ @$(kecho) ' Using $(srctree) as source for kernel'
$(Q)if [ -f $(srctree)/.config -o -d $(srctree)/include/config ]; then \
echo " $(srctree) is not clean, please run 'make mrproper'";\
echo " in the '$(srctree)' directory.";\
/bin/false; \
fi;
- $(Q)if [ ! -d include2 ]; then mkdir -p include2; fi;
- $(Q)ln -fsn $(srctree)/include/asm-$(ARCH) include2/asm
+ $(Q)if [ ! -d include2 ]; then \
+ mkdir -p include2; \
+ ln -fsn $(srctree)/include/asm-$(SRCARCH) include2/asm; \
+ fi
+ ln -fsn $(srctree) source
endif
# prepare2 creates a makefile if using a separate output directory
prepare1: prepare2 include/linux/version.h include/linux/utsrelease.h \
include/asm include/config/auto.conf
-ifneq ($(KBUILD_MODULES),)
- $(Q)mkdir -p $(MODVERDIR)
- $(Q)rm -f $(MODVERDIR)/*
-endif
+ $(cmd_crmodverdir)
archprepare: prepare1 scripts_basic
export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
-# FIXME: The asm symlink changes when $(ARCH) changes. That's
-# hard to detect, but I suppose "make mrproper" is a good idea
-# before switching between archs anyway.
+# The asm symlink changes when $(ARCH) changes.
+# Detect this and ask user to run make mrproper
+# If asm is a stale symlink (point to dir that does not exist) remove it
+define check-symlink
+ set -e; \
+ if [ -L include/asm ]; then \
+ asmlink=`readlink include/asm | cut -d '-' -f 2`; \
+ if [ "$$asmlink" != "$(SRCARCH)" ]; then \
+ echo "ERROR: the symlink $@ points to asm-$$asmlink but asm-$(SRCARCH) was expected"; \
+ echo " set ARCH or save .config and run 'make mrproper' to fix it"; \
+ exit 1; \
+ fi; \
+ test -e $$asmlink || rm include/asm; \
+ elif [ -d include/asm ]; then \
+ echo "ERROR: $@ is a directory but a symlink was expected";\
+ exit 1; \
+ fi
+endef
-include/asm:
- @echo ' SYMLINK $@ -> include/asm-$(ARCH)'
- $(Q)if [ ! -d include ]; then mkdir -p include; fi;
- @ln -fsn asm-$(ARCH) $@
+# We create the target directory of the symlink if it does
+# not exist so the test in check-symlink works and we have a
+# directory for generated filesas used by some architectures.
+define create-symlink
+ if [ ! -L include/asm ]; then \
+ $(kecho) ' SYMLINK $@ -> include/asm-$(SRCARCH)'; \
+ if [ ! -d include/asm-$(SRCARCH) ]; then \
+ mkdir -p include/asm-$(SRCARCH); \
+ fi; \
+ ln -fsn asm-$(SRCARCH) $@; \
+ fi
+endef
+
+include/asm: FORCE
+ $(Q)$(check-symlink)
+ $(Q)$(create-symlink)
# Generate some files
# ---------------------------------------------------------------------------
include/linux/utsrelease.h: include/config/kernel.release FORCE
$(call filechk,utsrelease.h)
+PHONY += headerdep
+headerdep:
+ $(Q)find include/ -name '*.h' | xargs --max-args 1 scripts/headerdep.pl
+
# ---------------------------------------------------------------------------
PHONY += depend dep
@echo '*** Warning: make $@ is unnecessary now.'
# ---------------------------------------------------------------------------
+# Firmware install
+INSTALL_FW_PATH=$(INSTALL_MOD_PATH)/lib/firmware
+export INSTALL_FW_PATH
+
+PHONY += firmware_install
+firmware_install: FORCE
+ @mkdir -p $(objtree)/firmware
+ $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_install
+
+# ---------------------------------------------------------------------------
# Kernel headers
-INSTALL_HDR_PATH=$(objtree)/usr
-export INSTALL_HDR_PATH
-HDRARCHES=$(filter-out generic,$(patsubst $(srctree)/include/asm-%/Kbuild,%,$(wildcard $(srctree)/include/asm-*/Kbuild)))
+#Default location for installed headers
+export INSTALL_HDR_PATH = $(objtree)/usr
-PHONY += headers_install_all
-headers_install_all: include/linux/version.h scripts_basic FORCE
+hdr-inst := -rR -f $(srctree)/scripts/Makefile.headersinst obj
+# Find out where the Kbuild file is located to support
+# arch/$(ARCH)/include/asm
+hdr-dir = $(strip \
+ $(if $(wildcard $(srctree)/arch/$(hdr-arch)/include/asm/Kbuild), \
+ arch/$(hdr-arch)/include/asm, include/asm-$(hdr-arch)))
+
+# If we do an all arch process set dst to asm-$(hdr-arch)
+hdr-dst = $(if $(KBUILD_HEADERS), dst=include/asm-$(hdr-arch), dst=include/asm)
+
+PHONY += __headers
+__headers: include/linux/version.h scripts_basic FORCE
$(Q)$(MAKE) $(build)=scripts scripts/unifdef
- $(Q)for arch in $(HDRARCHES); do \
- $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch ;\
- done
+
+PHONY += headers_install_all
+headers_install_all:
+ $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh install
PHONY += headers_install
-headers_install: include/linux/version.h scripts_basic FORCE
- @if [ ! -r $(srctree)/include/asm-$(ARCH)/Kbuild ]; then \
- echo '*** Error: Headers not exportable for this architecture ($(ARCH))'; \
- exit 1 ; fi
- $(Q)$(MAKE) $(build)=scripts scripts/unifdef
- $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst obj=include
+headers_install: __headers
+ $(if $(wildcard $(srctree)/$(hdr-dir)/Kbuild),, \
+ $(error Headers not exportable for the $(SRCARCH) architecture))
+ $(Q)$(MAKE) $(hdr-inst)=include
+ $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst)
PHONY += headers_check_all
headers_check_all: headers_install_all
- $(Q)for arch in $(HDRARCHES); do \
- $(MAKE) ARCH=$$arch -f $(srctree)/scripts/Makefile.headersinst obj=include BIASMDIR=-bi-$$arch HDRCHECK=1 ;\
- done
+ $(Q)$(CONFIG_SHELL) $(srctree)/scripts/headers.sh check
PHONY += headers_check
headers_check: headers_install
- $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.headersinst obj=include HDRCHECK=1
+ $(Q)$(MAKE) $(hdr-inst)=include HDRCHECK=1
+ $(Q)$(MAKE) $(hdr-inst)=$(hdr-dir) $(hdr-dst) HDRCHECK=1
# ---------------------------------------------------------------------------
# Modules
all: modules
# Build modules
+#
+# A module can be listed more than once in obj-m resulting in
+# duplicate lines in modules.order files. Those are removed
+# using awk while concatenating to the final file.
PHONY += modules
modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux)
- @echo ' Building modules, stage 2.';
+ $(Q)$(AWK) '!x[$$0]++' $(vmlinux-dirs:%=$(objtree)/%/modules.order) > $(objtree)/modules.order
+ @$(kecho) ' Building modules, stage 2.';
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
+ $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modbuild
# Target to prepare building external modules
rm -f $(MODLIB)/build ; \
ln -s $(objtree) $(MODLIB)/build ; \
fi
+ @cp -f $(objtree)/modules.order $(MODLIB)/
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
-# If System.map exists, run depmod. This deliberately does not have a
-# dependency on System.map since that would run the dependency tree on
-# vmlinux. This depmod is only for convenience to give the initial
+# This depmod is only for convenience to give the initial
# boot a modules.dep even before / is mounted read-write. However the
# boot script depmod is the master version.
-ifeq "$(strip $(INSTALL_MOD_PATH))" ""
-depmod_opts :=
-else
-depmod_opts := -b $(INSTALL_MOD_PATH) -r
-endif
PHONY += _modinst_post
_modinst_post: _modinst_
- if [ -r System.map -a -x $(DEPMOD) ]; then $(DEPMOD) -ae -F System.map $(depmod_opts) $(KERNELRELEASE); fi
+ $(Q)$(MAKE) -f $(srctree)/scripts/Makefile.fwinst obj=firmware __fw_modinst
+ $(call cmd,depmod)
else # CONFIG_MODULES
MRPROPER_FILES += .config .config.old include/asm .version .old_version \
include/linux/autoconf.h include/linux/version.h \
include/linux/utsrelease.h \
- Module.symvers tags TAGS cscope*
+ include/linux/bounds.h include/asm*/asm-offsets.h \
+ Module.symvers Module.markers tags TAGS cscope*
# clean - Delete most, but leave enough to build external modules
#
clean: rm-dirs := $(CLEAN_DIRS)
clean: rm-files := $(CLEAN_FILES)
-clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs))
+clean-dirs := $(addprefix _clean_,$(srctree) $(vmlinux-alldirs) Documentation)
PHONY += $(clean-dirs) clean archclean
$(clean-dirs):
@find . $(RCS_FIND_IGNORE) \
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
- -o -name '*.symtypes' \) \
+ -o -name '*.symtypes' -o -name 'modules.order' \
+ -o -name 'Module.markers' -o -name '.tmp_*.o.*' \) \
-type f -print | xargs rm -f
# mrproper - Delete all generated files, including .config
# Brief documentation of the typical targets used
# ---------------------------------------------------------------------------
-boards := $(wildcard $(srctree)/arch/$(ARCH)/configs/*_defconfig)
+boards := $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*_defconfig)
boards := $(notdir $(boards))
+board-dirs := $(dir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/*/*_defconfig))
+board-dirs := $(sort $(notdir $(board-dirs:/=)))
help:
@echo 'Cleaning targets:'
@echo '* vmlinux - Build the bare kernel'
@echo '* modules - Build all modules'
@echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
+ @echo ' firmware_install- Install all firmware to INSTALL_FW_PATH'
+ @echo ' (default: $$(INSTALL_MOD_PATH)/lib/firmware)'
@echo ' dir/ - Build all files in dir and below'
@echo ' dir/file.[ois] - Build specified target only'
@echo ' dir/file.ko - Build module including final link'
- @echo ' rpm - Build a kernel as an RPM package'
+ @echo ' prepare - Set up for building external modules'
@echo ' tags/TAGS - Generate tags file for editors'
@echo ' cscope - Generate cscope index'
@echo ' kernelrelease - Output the release version string'
@echo ' kernelversion - Output the version stored in Makefile'
- @if [ -r $(srctree)/include/asm-$(ARCH)/Kbuild ]; then \
- echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
+ @echo ' headers_install - Install sanitised kernel headers to INSTALL_HDR_PATH'; \
echo ' (default: $(INSTALL_HDR_PATH))'; \
- fi
- @echo ''
+ echo ''
@echo 'Static analysers'
@echo ' checkstack - Generate a list of stack hogs'
@echo ' namespacecheck - Name space analysis on compiled kernel'
- @if [ -r $(srctree)/include/asm-$(ARCH)/Kbuild ]; then \
- echo ' headers_check - Sanity check on exported headers'; \
- fi
- @echo ''
+ @echo ' versioncheck - Sanity check on version.h usage'
+ @echo ' includecheck - Check for duplicate included header files'
+ @echo ' export_report - List the usages of all exported symbols'
+ @echo ' headers_check - Sanity check on exported headers'
+ @echo ' headerdep - Detect inclusion cycles in headers'; \
+ echo ''
@echo 'Kernel packaging:'
@$(MAKE) $(build)=$(package-dir) help
@echo ''
@echo 'Documentation targets:'
@$(MAKE) -f $(srctree)/Documentation/DocBook/Makefile dochelp
@echo ''
- @echo 'Architecture specific targets ($(ARCH)):'
+ @echo 'Architecture specific targets ($(SRCARCH)):'
@$(if $(archhelp),$(archhelp),\
- echo ' No architecture specific help defined for $(ARCH)')
+ echo ' No architecture specific help defined for $(SRCARCH)')
@echo ''
@$(if $(boards), \
$(foreach b, $(boards), \
printf " %-24s - Build for %s\\n" $(b) $(subst _defconfig,,$(b));) \
echo '')
+ @$(if $(board-dirs), \
+ $(foreach b, $(board-dirs), \
+ printf " %-16s - Show %s-specific targets\\n" help-$(b) $(b);) \
+ printf " %-16s - Show all of the above\\n" help-boards; \
+ echo '')
@echo ' make V=0|1 [targets] 0 => quiet build (default), 1 => verbose build'
@echo ' make V=2 [targets] 2 => give reason for rebuild of target'
@echo 'For further info see the ./README file'
+help-board-dirs := $(addprefix help-,$(board-dirs))
+
+help-boards: $(help-board-dirs)
+
+boards-per-dir = $(notdir $(wildcard $(srctree)/arch/$(SRCARCH)/configs/$*/*_defconfig))
+
+$(help-board-dirs): help-%:
+ @echo 'Architecture specific targets ($(SRCARCH) $*):'
+ @$(if $(boards-per-dir), \
+ $(foreach b, $(boards-per-dir), \
+ printf " %-24s - Build for %s\\n" $*/$(b) $(subst _defconfig,,$(b));) \
+ echo '')
+
+
# Documentation targets
# ---------------------------------------------------------------------------
%docs: scripts_basic FORCE
KBUILD_MODULES := 1
PHONY += crmodverdir
crmodverdir:
- $(Q)mkdir -p $(MODVERDIR)
- $(Q)rm -f $(MODVERDIR)/*
+ $(cmd_crmodverdir)
PHONY += $(objtree)/Module.symvers
$(objtree)/Module.symvers:
$(Q)$(MAKE) $(build)=$(patsubst _module_%,%,$@)
modules: $(module-dirs)
- @echo ' Building modules, stage 2.';
+ @$(kecho) ' Building modules, stage 2.';
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
PHONY += modules_install
$(Q)mkdir -p $(MODLIB)/$(install-dir)
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modinst
-# Run depmod only is we have System.map and depmod is executable
-quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)
- cmd_depmod = if [ -r System.map -a -x $(DEPMOD) ]; then \
- $(DEPMOD) -ae -F System.map \
- $(if $(strip $(INSTALL_MOD_PATH)), \
- -b $(INSTALL_MOD_PATH) -r) \
- $(KERNELRELEASE); \
- fi
-
PHONY += _emodinst_post
_emodinst_post: _emodinst_
$(call cmd,depmod)
$(Q)$(MAKE) $(clean)=$(patsubst _clean_%,%,$@)
clean: rm-dirs := $(MODVERDIR)
+clean: rm-files := $(KBUILD_EXTMOD)/Module.symvers
clean: $(clean-dirs)
$(call cmd,rmdirs)
+ $(call cmd,rmfiles)
@find $(KBUILD_EXTMOD) $(RCS_FIND_IGNORE) \
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \) \
# Generate tags for editors
# ---------------------------------------------------------------------------
+quiet_cmd_tags = GEN $@
+ cmd_tags = $(CONFIG_SHELL) $(srctree)/scripts/tags.sh $@
-#We want __srctree to totally vanish out when KBUILD_OUTPUT is not set
-#(which is the most common case IMHO) to avoid unneeded clutter in the big tags file.
-#Adding $(srctree) adds about 20M on i386 to the size of the output file!
-
-ifeq ($(src),$(obj))
-__srctree =
-else
-__srctree = $(srctree)/
-endif
-
-ifeq ($(ALLSOURCE_ARCHS),)
-ifeq ($(ARCH),um)
-ALLINCLUDE_ARCHS := $(ARCH) $(SUBARCH)
-else
-ALLINCLUDE_ARCHS := $(ARCH)
-endif
-else
-#Allow user to specify only ALLSOURCE_PATHS on the command line, keeping existing behavour.
-ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
-endif
-
-ALLSOURCE_ARCHS := $(ARCH)
-
-define find-sources
- ( for ARCH in $(ALLSOURCE_ARCHS) ; do \
- find $(__srctree)arch/$${ARCH} $(RCS_FIND_IGNORE) \
- -name $1 -print; \
- done ; \
- find $(__srctree)security/selinux/include $(RCS_FIND_IGNORE) \
- -name $1 -print; \
- find $(__srctree)include $(RCS_FIND_IGNORE) \
- \( -name config -o -name 'asm-*' \) -prune \
- -o -name $1 -print; \
- for ARCH in $(ALLINCLUDE_ARCHS) ; do \
- find $(__srctree)include/asm-$${ARCH} $(RCS_FIND_IGNORE) \
- -name $1 -print; \
- done ; \
- find $(__srctree)include/asm-generic $(RCS_FIND_IGNORE) \
- -name $1 -print; \
- find $(__srctree) $(RCS_FIND_IGNORE) \
- \( -name include -o -name arch \) -prune -o \
- -name $1 -print; \
- )
-endef
-
-define all-sources
- $(call find-sources,'*.[chS]')
-endef
-define all-kconfigs
- $(call find-sources,'Kconfig*')
-endef
-define all-defconfigs
- $(call find-sources,'defconfig')
-endef
-
-define xtags
- if $1 --version 2>&1 | grep -iq exuberant; then \
- $(all-sources) | xargs $1 -a \
- -I __initdata,__exitdata,__acquires,__releases \
- -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
- --extra=+f --c-kinds=+px \
- --regex-asm='/^ENTRY\(([^)]*)\).*/\1/'; \
- $(all-kconfigs) | xargs $1 -a \
- --langdef=kconfig \
- --language-force=kconfig \
- --regex-kconfig='/^[[:blank:]]*config[[:blank:]]+([[:alnum:]_]+)/\1/'; \
- $(all-defconfigs) | xargs -r $1 -a \
- --langdef=dotconfig \
- --language-force=dotconfig \
- --regex-dotconfig='/^#?[[:blank:]]*(CONFIG_[[:alnum:]_]+)/\1/'; \
- elif $1 --version 2>&1 | grep -iq emacs; then \
- $(all-sources) | xargs $1 -a; \
- $(all-kconfigs) | xargs $1 -a \
- --regex='/^[ \t]*config[ \t]+\([a-zA-Z0-9_]+\)/\1/'; \
- $(all-defconfigs) | xargs -r $1 -a \
- --regex='/^#?[ \t]?\(CONFIG_[a-zA-Z0-9_]+\)/\1/'; \
- else \
- $(all-sources) | xargs $1 -a; \
- fi
-endef
-
-quiet_cmd_cscope-file = FILELST cscope.files
- cmd_cscope-file = (echo \-k; echo \-q; $(all-sources)) > cscope.files
-
-quiet_cmd_cscope = MAKE cscope.out
- cmd_cscope = cscope -b
-
-cscope: FORCE
- $(call cmd,cscope-file)
- $(call cmd,cscope)
-
-quiet_cmd_TAGS = MAKE $@
-define cmd_TAGS
- rm -f $@; \
- $(call xtags,etags)
-endef
-
-TAGS: FORCE
- $(call cmd,TAGS)
-
-quiet_cmd_tags = MAKE $@
-define cmd_tags
- rm -f $@; \
- $(call xtags,ctags)
-endef
-
-tags: FORCE
+tags TAGS cscope: FORCE
$(call cmd,tags)
-
# Scripts to check various things for consistency
# ---------------------------------------------------------------------------
includecheck:
find * $(RCS_FIND_IGNORE) \
-name '*.[hcS]' -type f -print | sort \
- | xargs $(PERL) -w scripts/checkincludes.pl
+ | xargs $(PERL) -w $(srctree)/scripts/checkincludes.pl
versioncheck:
find * $(RCS_FIND_IGNORE) \
-name '*.[hcS]' -type f -print | sort \
- | xargs $(PERL) -w scripts/checkversion.pl
+ | xargs $(PERL) -w $(srctree)/scripts/checkversion.pl
namespacecheck:
$(PERL) $(srctree)/scripts/namespace.pl
+export_report:
+ $(PERL) $(srctree)/scripts/export_report.pl
+
endif #ifeq ($(config-targets),1)
endif #ifeq ($(mixed-targets),1)
# Single targets
# ---------------------------------------------------------------------------
# Single targets are compatible with:
-# - build whith mixed source and output
+# - build with mixed source and output
# - build with separate output dir 'make O=...'
# - external modules
#
$(Q)$(MAKE) $(build)=$(build-dir) $(target-dir)$(notdir $@)
# Modules
-/ %/: prepare scripts FORCE
+/: prepare scripts FORCE
+ $(cmd_crmodverdir)
+ $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
+ $(build)=$(build-dir)
+%/: prepare scripts FORCE
+ $(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir)
%.ko: prepare scripts FORCE
+ $(cmd_crmodverdir)
$(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
$(build)=$(build-dir) $(@:.ko=.o)
$(Q)$(MAKE) -f $(srctree)/scripts/Makefile.modpost
quiet_cmd_rmfiles = $(if $(wildcard $(rm-files)),CLEAN $(wildcard $(rm-files)))
cmd_rmfiles = rm -f $(rm-files)
+# Run depmod only if we have System.map and depmod is executable
+quiet_cmd_depmod = DEPMOD $(KERNELRELEASE)
+ cmd_depmod = \
+ if [ -r System.map -a -x $(DEPMOD) ]; then \
+ $(DEPMOD) -ae -F System.map \
+ $(if $(strip $(INSTALL_MOD_PATH)), -b $(INSTALL_MOD_PATH) -r) \
+ $(KERNELRELEASE); \
+ fi
+
+# Create temporary dir for module support files
+# clean it up only when building all modules
+cmd_crmodverdir = $(Q)mkdir -p $(MODVERDIR) \
+ $(if $(KBUILD_MODULES),; rm -f $(MODVERDIR)/*)
-a_flags = -Wp,-MD,$(depfile) $(AFLAGS) $(AFLAGS_KERNEL) \
- $(NOSTDINC_FLAGS) $(CPPFLAGS) \
+a_flags = -Wp,-MD,$(depfile) $(KBUILD_AFLAGS) $(AFLAGS_KERNEL) \
+ $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(KBUILD_CPPFLAGS) \
$(modkern_aflags) $(EXTRA_AFLAGS) $(AFLAGS_$(basetarget).o)
quiet_cmd_as_o_S = AS $@
PHONY += FORCE
FORCE:
-# Cancel implicit rules on top Makefile, `-rR' will apply to sub-makes.
-Makefile: ;
-
# Declare the contents of the .PHONY variable as phony. We keep that
# information in a variable se we can use it in if_changed and friends.
.PHONY: $(PHONY)