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authorLinus Torvalds <torvalds@g5.osdl.org>2006-01-10 08:21:33 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-10 08:21:33 -0800
commitab396e91bfe953db26fa1083d9c3e7a4fbe0334a (patch)
tree81db9e5f919b84dcb4284ca8cdf675e13716c191 /Makefile
parent9979ead5d1eb23191a00453559927c5abf9087e2 (diff)
parent4f0210b9c4889eede9f8f379f93570c01998ccb9 (diff)
downloadlinux-2.6.34-ux500-ab396e91bfe953db26fa1083d9c3e7a4fbe0334a.tar.gz
Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
Fix up some trivial conflicts in {i386|ia64}/Makefile
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile97
1 files changed, 54 insertions, 43 deletions
diff --git a/Makefile b/Makefile
index fb497ea8bc7..deedaf79cdc 100644
--- a/Makefile
+++ b/Makefile
@@ -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
# ===========================================================================