VERSION = 2
PATCHLEVEL = 6
-SUBLEVEL = 15
-EXTRAVERSION =
+SUBLEVEL = 16
+EXTRAVERSION =-rc4
NAME=Sliding Snow Leopard
# *DOCUMENTATION*
src := $(srctree)
obj := $(objtree)
-VPATH := $(srctree)
+VPATH := $(srctree):$(KBUILD_EXTMOD)
export srctree objtree VPATH TOPDIR
-nullstring :=
-space := $(nullstring) # end of line
-
-# Take the contents of any files called localversion* and the config
-# variable CONFIG_LOCALVERSION and append them to KERNELRELEASE. Be
-# careful not to include files twice if building in the source
-# directory. LOCALVERSION from the command line override all of this
-
-localver := $(objtree)/localversion* $(srctree)/localversion*
-localver := $(sort $(wildcard $(localver)))
-# skip backup files (containing '~')
-localver := $(foreach f, $(localver), $(if $(findstring ~, $(f)),,$(f)))
-
-LOCALVERSION = $(subst $(space),, \
- $(shell cat /dev/null $(localver)) \
- $(patsubst "%",%,$(CONFIG_LOCALVERSION)))
-
-KERNELRELEASE=$(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)$(LOCALVERSION)
# SUBARCH tells the usermode build what the underlying arch is. That is set
# first, and if a usermode build is happening, the "ARCH=um" on the command
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/ppc64/powerpc/ )
+ -e s/ppc.*/powerpc/ -e s/mips.*/mips/ )
# Cross compiling and selecting different set of gcc/bin-utils
# ---------------------------------------------------------------------------
# If it is set to "silent_", nothing wil be printed at all, since
# the variable $(silent_cmd_cc_o_c) doesn't exist.
#
-# A simple variant is to prefix commands with $(Q) - that's usefull
+# A simple variant is to prefix commands with $(Q) - that's useful
# for commands that shall be hidden in non-verbose mode.
#
# $(Q)ln $@ :<
export quiet Q KBUILD_VERBOSE
-######
-# cc support functions to be used (only) in arch/$(ARCH)/Makefile
-# See documentation in Documentation/kbuild/makefiles.txt
-
-# cc-option
-# Usage: cflags-y += $(call cc-option, -march=winchip-c6, -march=i586)
-
-cc-option = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
- > /dev/null 2>&1; then echo "$(1)"; else echo "$(2)"; fi ;)
-
-# cc-option-yn
-# Usage: flag := $(call cc-option-yn, -march=winchip-c6)
-cc-option-yn = $(shell if $(CC) $(CFLAGS) $(1) -S -o /dev/null -xc /dev/null \
- > /dev/null 2>&1; then echo "y"; else echo "n"; fi;)
-
-# cc-option-align
-# Prefix align with either -falign or -malign
-cc-option-align = $(subst -functions=0,,\
- $(call cc-option,-falign-functions=0,-malign-functions=0))
-
-# cc-version
-# Usage gcc-ver := $(call cc-version $(CC))
-cc-version = $(shell $(CONFIG_SHELL) $(srctree)/scripts/gcc-version.sh \
- $(if $(1), $(1), $(CC)))
-
# Look for make include files relative to root of kernel src
MAKEFLAGS += --include-dir=$(srctree)
-ffreestanding
AFLAGS := -D__ASSEMBLY__
-export VERSION PATCHLEVEL SUBLEVEL EXTRAVERSION LOCALVERSION KERNELRELEASE \
+# Read KERNELRELEASE from .kernelrelease (if it exists)
+KERNELRELEASE = $(shell cat .kernelrelease 2> /dev/null)
+KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
+
+export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION \
ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC \
CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE \
HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
config %config: scripts_basic outputmakefile FORCE
$(Q)mkdir -p include/linux
$(Q)$(MAKE) $(build)=scripts/kconfig $@
+ $(Q)$(MAKE) -C $(srctree) KBUILD_SRC= .kernelrelease
else
# ===========================================================================
# images. Default is /boot, but you can set it to other values
export INSTALL_PATH ?= /boot
-# If CONFIG_LOCALVERSION_AUTO is set, we automatically perform some tests
-# and try to determine if the current source tree is a release tree, of any sort,
-# or if is a pure development tree.
-#
-# A 'release tree' is any tree with a git TAG associated
-# with it. The primary goal of this is to make it safe for a native
-# git/CVS/SVN user to build a release tree (i.e, 2.6.9) and also to
-# continue developing against the current Linus tree, without having the Linus
-# tree overwrite the 2.6.9 tree when installed.
-#
-# Currently, only git is supported.
-# Other SCMs can edit scripts/setlocalversion and add the appropriate
-# checks as needed.
-
-
-ifdef CONFIG_LOCALVERSION_AUTO
- localversion-auto := $(shell $(PERL) $(srctree)/scripts/setlocalversion $(srctree))
- LOCALVERSION := $(LOCALVERSION)$(localversion-auto)
-endif
-
#
# INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory
# relocations required by build roots. This is not defined in the
# makefile but the arguement can be passed to make if needed.
#
-MODLIB := $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
+MODLIB = $(INSTALL_MOD_PATH)/lib/modules/$(KERNELRELEASE)
export MODLIB
$(vmlinux-dirs): prepare scripts
$(Q)$(MAKE) $(build)=$@
+# Build the kernel release string
+# The KERNELRELEASE is stored in a file named .kernelrelease
+# to be used when executing for example make install or make modules_install
+#
+# Take the contents of any files called localversion* and the config
+# variable CONFIG_LOCALVERSION and append them to KERNELRELEASE.
+# LOCALVERSION from the command line override all of this
+
+nullstring :=
+space := $(nullstring) # end of line
+
+___localver = $(objtree)/localversion* $(srctree)/localversion*
+__localver = $(sort $(wildcard $(___localver)))
+# skip backup files (containing '~')
+_localver = $(foreach f, $(__localver), $(if $(findstring ~, $(f)),,$(f)))
+
+localver = $(subst $(space),, \
+ $(shell cat /dev/null $(_localver)) \
+ $(patsubst "%",%,$(CONFIG_LOCALVERSION)))
+
+# If CONFIG_LOCALVERSION_AUTO is set scripts/setlocalversion is called
+# and if the SCM is know a tag from the SCM is appended.
+# The appended tag is determinded by the SCM used.
+#
+# Currently, only git is supported.
+# Other SCMs can edit scripts/setlocalversion and add the appropriate
+# checks as needed.
+ifdef CONFIG_LOCALVERSION_AUTO
+ _localver-auto = $(shell $(CONFIG_SHELL) \
+ $(srctree)/scripts/setlocalversion $(srctree))
+ localver-auto = $(LOCALVERSION)$(_localver-auto)
+endif
+
+localver-full = $(localver)$(localver-auto)
+
+# Store (new) KERNELRELASE string in .kernelrelease
+kernelrelease = $(KERNELVERSION)$(localver-full)
+.kernelrelease: FORCE
+ $(Q)rm -f $@
+ $(Q)echo $(kernelrelease) > $@
+
+
# Things we need to do before we recursively start building the kernel
# or the modules are listed in "prepare".
# A multi level approach is used. prepareN is processed before prepareN-1.
# and if so do:
# 1) Check that make has not been executed in the kernel src $(srctree)
# 2) Create the include2 directory, used for the second asm symlink
-
-prepare3:
+prepare3: .kernelrelease
ifneq ($(KBUILD_SRC),)
@echo ' Using $(srctree) as source for kernel'
$(Q)if [ -f $(srctree)/.config ]; then \
export CPPFLAGS_vmlinux.lds += -P -C -U$(ARCH)
-# Single targets
-# ---------------------------------------------------------------------------
-
-%.s: %.c scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-%.i: %.c scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-%.o: %.c scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-%.ko: scripts FORCE
- $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) $(build)=$(@D) $(@:.ko=.o)
- $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
-%/: scripts prepare FORCE
- $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) $(build)=$(@D)
-%.lst: %.c scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-%.s: %.S scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-%.o: %.S scripts FORCE
- $(Q)$(MAKE) $(build)=$(@D) $@
-
# 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.
)
endef
-include/linux/version.h: $(srctree)/Makefile FORCE
+include/linux/version.h: $(srctree)/Makefile .config FORCE
$(call filechk,version.h)
# ---------------------------------------------------------------------------
# Directories & files removed with 'make mrproper'
MRPROPER_DIRS += include/config include2
-MRPROPER_FILES += .config .config.old include/asm .version \
+MRPROPER_FILES += .config .config.old include/asm .version .old_version \
include/linux/autoconf.h include/linux/version.h \
- Module.symvers tags TAGS cscope*
+ .kernelrelease Module.symvers tags TAGS cscope*
# clean - Delete most, but leave enough to build 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'
@echo ''
@echo 'Static analysers'
@echo ' buildcheck - List dangling references to vmlinux discarded sections'
KBUILD_MODULES := 1
.PHONY: crmodverdir
crmodverdir:
+ $(Q)rm -rf $(MODVERDIR)
$(Q)mkdir -p $(MODVERDIR)
.PHONY: $(objtree)/Module.symvers
$(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
.PHONY: modules_install
-modules_install:
+modules_install: _emodinst_ _emodinst_post
+
+install-dir := $(if $(INSTALL_MOD_DIR),$(INSTALL_MOD_DIR),extra)
+.PHONY: _emodinst_
+_emodinst_:
+ $(Q)rm -rf $(MODLIB)/$(install-dir)
+ $(Q)mkdir -p $(MODLIB)/$(install-dir)
$(Q)$(MAKE) -rR -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)
+
clean-dirs := $(addprefix _clean_,$(KBUILD_EXTMOD))
.PHONY: $(clean-dirs) clean
@echo ' modules_install - install the module'
@echo ' clean - remove generated files in module directory only'
@echo ''
+
+# Dummies...
+.PHONY: prepare scripts
+prepare: ;
+scripts: ;
endif # KBUILD_EXTMOD
# Generate tags for editors
$(PERL) $(src)/scripts/checkstack.pl $(ARCH)
kernelrelease:
- @echo $(KERNELRELEASE)
+ $(if $(wildcard .kernelrelease), $(Q)echo $(KERNELRELEASE), \
+ $(error kernelrelease not valid - run 'make *config' to update it))
+kernelversion:
+ @echo $(KERNELVERSION)
+
+# Single targets
+# ---------------------------------------------------------------------------
+# The directory part is taken from first prerequisite, so this
+# works even with external modules
+%.s: %.c scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+%.i: %.c scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+%.o: %.c scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+%.lst: %.c scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+%.s: %.S scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+%.o: %.S scripts FORCE
+ $(Q)$(MAKE) $(build)=$(dir $<) $(dir $<)$(notdir $@)
+
+# For external modules we shall include any directory of the target,
+# but usual case there is no directory part.
+# make M=`pwd` module.o => $(dir $@)=./
+# make M=`pwd` foo/module.o => $(dir $@)=foo/
+# make M=`pwd` / => $(dir $@)=/
+
+ifeq ($(KBUILD_EXTMOD),)
+ target-dir = $(@D)
+else
+ zap-slash=$(filter-out .,$(patsubst %/,%,$(dir $@)))
+ target-dir = $(KBUILD_EXTMOD)$(if $(zap-slash),/$(zap-slash))
+endif
+
+/ %/: scripts prepare FORCE
+ $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
+ $(build)=$(target-dir)
+%.ko: scripts FORCE
+ $(Q)$(MAKE) KBUILD_MODULES=$(if $(CONFIG_MODULES),1) \
+ $(build)=$(target-dir) $(@:.ko=.o)
+ $(Q)$(MAKE) -rR -f $(srctree)/scripts/Makefile.modpost
# FIXME Should go into a make.lib or something
# ===========================================================================
projects / mirror_ubuntu-zesty-kernel.git / blobdiff