VERSION = 2
PATCHLEVEL = 6
-SUBLEVEL = 14
+SUBLEVEL = 16
EXTRAVERSION =
-NAME=Affluent Albatross
+NAME=Sliding Snow Leopard
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
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/s390x/s390/ -e s/parisc64/parisc/ \
+ -e s/ppc.*/powerpc/ )
# 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 $@ :<
# cc support functions to be used (only) in arch/$(ARCH)/Makefile
# See documentation in Documentation/kbuild/makefiles.txt
+# as-option
+# Usage: cflags-y += $(call as-option, -Wa$(comma)-isa=foo,)
+
+as-option = $(shell if $(CC) $(CFLAGS) $(1) -Wa,-Z -c -o /dev/null \
+ -xassembler /dev/null > /dev/null 2>&1; then echo "$(1)"; \
+ else echo "$(2)"; fi ;)
+
# 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 ;)
-# For backward compatibility
-check_gcc = $(warning check_gcc is deprecated - use cc-option) \
- $(call cc-option, $(1),$(2))
-
# 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 \
# Use LINUXINCLUDE when you must reference the include/ directory.
# Needed to be compatible with the O= option
LINUXINCLUDE := -Iinclude \
- $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include)
+ $(if $(KBUILD_SRC),-Iinclude2 -I$(srctree)/include) \
+ -include include/linux/autoconf.h
CPPFLAGS := -D__KERNEL__ $(LINUXINCLUDE)
-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
# ===========================================================================
# Read in dependencies to all Kconfig* files, make sure to run
# oldconfig if changes are detected.
--include .config.cmd
+-include .kconfig.d
include .config
# If .config needs to be updated, it will be done via the dependency
# that autoconf has on .config.
# To avoid any implicit rule to kick in, define an empty command
-.config: ;
+.config .kconfig.d: ;
# If .config is newer than include/linux/autoconf.h, someone tinkered
-# with it and forgot to run make oldconfig
-include/linux/autoconf.h: .config
+# with it and forgot to run make oldconfig.
+# If kconfig.d is missing then we are probarly in a cleaned tree so
+# we execute the config step to be sure to catch updated Kconfig files
+include/linux/autoconf.h: .kconfig.d .config
$(Q)mkdir -p include/linux
$(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
else
CFLAGS += -fomit-frame-pointer
endif
+ifdef CONFIG_UNWIND_INFO
+CFLAGS += -fasynchronous-unwind-tables
+endif
+
ifdef CONFIG_DEBUG_INFO
CFLAGS += -g
endif
# 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 \
)
endef
-include/linux/version.h: $(srctree)/Makefile FORCE
+include/linux/version.h: $(srctree)/Makefile .config .kernelrelease 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 ' all - Build all targets marked with [*]'
@echo '* vmlinux - Build the bare kernel'
@echo '* modules - Build all modules'
- @echo ' modules_install - Install all modules'
+ @echo ' modules_install - Install all modules to INSTALL_MOD_PATH (default: /)'
@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 ' 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'
__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 behaviour.
+ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
+endif
+
ALLSOURCE_ARCHS := $(ARCH)
define all-sources
find $(__srctree)include $(RCS_FIND_IGNORE) \
\( -name config -o -name 'asm-*' \) -prune \
-o -name '*.[chS]' -print; \
- for ARCH in $(ALLSOURCE_ARCHS) ; do \
+ for ARCH in $(ALLINCLUDE_ARCHS) ; do \
find $(__srctree)include/asm-$${ARCH} $(RCS_FIND_IGNORE) \
-name '*.[chS]' -print; \
done ; \
quiet_cmd_TAGS = MAKE $@
define cmd_TAGS
rm -f $@; \
- ETAGSF=`etags --version | grep -i exuberant >/dev/null && echo "-I __initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_GPL --extra=+f"`; \
- $(all-sources) | xargs etags $$ETAGSF -a
+ ETAGSF=`etags --version | grep -i exuberant >/dev/null && \
+ echo "-I __initdata,__exitdata,__acquires,__releases \
+ -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
+ --extra=+f --c-kinds=+px"`; \
+ $(all-sources) | xargs etags $$ETAGSF -a
endef
TAGS: FORCE
quiet_cmd_tags = MAKE $@
define cmd_tags
rm -f $@; \
- CTAGSF=`ctags --version | grep -i exuberant >/dev/null && echo "-I __initdata,__exitdata,EXPORT_SYMBOL,EXPORT_SYMBOL_GPL --extra=+f"`; \
- $(all-sources) | xargs ctags $$CTAGSF -a
+ CTAGSF=`ctags --version | grep -i exuberant >/dev/null && \
+ echo "-I __initdata,__exitdata,__acquires,__releases \
+ -I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL \
+ --extra=+f --c-kinds=+px"`; \
+ $(all-sources) | xargs ctags $$CTAGSF -a
endef
tags: FORCE
# Scripts to check various things for consistency
# ---------------------------------------------------------------------------
-configcheck:
- find * $(RCS_FIND_IGNORE) \
- -name '*.[hcS]' -type f -print | sort \
- | xargs $(PERL) -w scripts/checkconfig.pl
-
includecheck:
find * $(RCS_FIND_IGNORE) \
-name '*.[hcS]' -type f -print | sort \
$(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)
# FIXME Should go into a make.lib or something
# ===========================================================================
Code Review / linux-2.6.git / blobdiff