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author | Michal Marek <mmarek@suse.cz> | 2010-06-18 14:24:16 +0200 |
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committer | Michal Marek <mmarek@suse.cz> | 2010-06-18 14:24:16 +0200 |
commit | 8af8b28326f2b4565705125506ce8947e08587b1 (patch) | |
tree | 74d76824d0caf62ebf1f2a56be6759b36c75aeb9 /Makefile | |
parent | e26d6b834cc4a68adeb82abbdce7205df7599118 (diff) | |
parent | 09155120cf0ffe6f0c8aba3aa625831405b65996 (diff) | |
download | lwn-8af8b28326f2b4565705125506ce8947e08587b1.tar.gz lwn-8af8b28326f2b4565705125506ce8947e08587b1.zip |
Merge branch 'setlocalversion-speedup' into kbuild/kbuild
Diffstat (limited to 'Makefile')
-rw-r--r-- | Makefile | 74 |
1 files changed, 3 insertions, 71 deletions
@@ -883,80 +883,12 @@ PHONY += $(vmlinux-dirs) $(vmlinux-dirs): prepare scripts $(Q)$(MAKE) $(build)=$@ -# Build the kernel release string -# -# The KERNELRELEASE value built here is stored in the file -# include/config/kernel.release, and is used when executing several -# make targets, such as "make install" or "make modules_install." -# -# The eventual kernel release string consists of the following fields, -# shown in a hierarchical format to show how smaller parts are concatenated -# to form the larger and final value, with values coming from places like -# the Makefile, kernel config options, make command line options and/or -# SCM tag information. -# -# $(KERNELVERSION) -# $(VERSION) eg, 2 -# $(PATCHLEVEL) eg, 6 -# $(SUBLEVEL) eg, 18 -# $(EXTRAVERSION) eg, -rc6 -# $(localver-full) -# $(localver) -# localversion* (files without backups, containing '~') -# $(CONFIG_LOCALVERSION) (from kernel config setting) -# $(LOCALVERSION) (from make command line, if provided) -# $(localver-extra) -# $(scm-identifier) (unique SCM tag, if one exists) -# ./scripts/setlocalversion (only with CONFIG_LOCALVERSION_AUTO) -# .scmversion (only with CONFIG_LOCALVERSION_AUTO) -# + (only without CONFIG_LOCALVERSION_AUTO -# and without LOCALVERSION= and -# repository is at non-tagged commit) -# -# For kernels without CONFIG_LOCALVERSION_AUTO compiled from an SCM that has -# been revised beyond a tagged commit, `+' is appended to the version string -# when not overridden by using "make LOCALVERSION=". This indicates that the -# kernel is not a vanilla release version and has been modified. - -pattern = ".*/localversion[^~]*" -string = $(shell cat /dev/null \ - `find $(objtree) $(srctree) -maxdepth 1 -regex $(pattern) | sort -u`) - -localver = $(subst $(space),, $(string) \ - $(patsubst "%",%,$(CONFIG_LOCALVERSION))) - -# scripts/setlocalversion is called to create a unique identifier if the source -# is managed by a known SCM and the repository has been revised since the last -# tagged (release) commit. The format of the identifier is determined by the -# SCM's implementation. -# -# .scmversion is used when generating rpm packages so we do not loose -# the version information from the SCM when we do the build of the kernel -# from the copied source -ifeq ($(wildcard .scmversion),) - scm-identifier = $(shell $(CONFIG_SHELL) \ - $(srctree)/scripts/setlocalversion $(srctree)) -else - scm-identifier = $(shell cat .scmversion 2> /dev/null) -endif - -ifdef CONFIG_LOCALVERSION_AUTO - localver-extra = $(scm-identifier) -else - ifneq ($(scm-identifier),) - ifeq ($(LOCALVERSION),) - localver-extra = + - endif - endif -endif - -localver-full = $(localver)$(LOCALVERSION)$(localver-extra) - # Store (new) KERNELRELASE string in include/config/kernel.release -kernelrelease = $(KERNELVERSION)$(localver-full) +localversion = $(shell $(CONFIG_SHELL) \ + $(srctree)/scripts/setlocalversion $(srctree)) include/config/kernel.release: include/config/auto.conf FORCE $(Q)rm -f $@ - $(Q)echo $(kernelrelease) > $@ + $(Q)echo $(KERNELVERSION)$(localversion) > $@ # Things we need to do before we recursively start building the kernel |