|
@@ -141,24 +141,6 @@ VPATH := $(srctree)
|
|
|
|
|
|
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
|
|
@@ -353,7 +335,10 @@ CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
|
|
|
-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)
|
|
|
+
|
|
|
+export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE \
|
|
|
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
|
|
@@ -551,26 +536,6 @@ export KBUILD_IMAGE ?= vmlinux
|
|
|
# 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
|
|
@@ -782,6 +747,50 @@ $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ;
|
|
|
$(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 = \
|
|
|
+ $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)$(localver-full)
|
|
|
+.kernelrelease: FORCE
|
|
|
+ $(Q)rm -f .kernelrelease
|
|
|
+ $(Q)echo $(kernelrelease) > .kernelrelease
|
|
|
+ $(Q)echo " Building kernel $(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.
|
|
@@ -798,8 +807,7 @@ $(vmlinux-dirs): prepare scripts
|
|
|
# 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 \
|
|
@@ -984,9 +992,9 @@ CLEAN_FILES += vmlinux System.map \
|
|
|
|
|
|
# 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
|
|
|
#
|
|
@@ -1072,6 +1080,7 @@ help:
|
|
|
@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'
|
|
@@ -1293,6 +1302,8 @@ checkstack:
|
|
|
|
|
|
kernelrelease:
|
|
|
@echo $(KERNELRELEASE)
|
|
|
+kernelversion:
|
|
|
+ @echo $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
|
|
|
|
|
|
# FIXME Should go into a make.lib or something
|
|
|
# ===========================================================================
|