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| author | Sam Ravnborg <sam@mars.ravnborg.org> | 2005-09-11 22:30:22 +0200 |
|---|---|---|
| committer | Sam Ravnborg <sam@mars.ravnborg.org> | 2005-09-11 22:30:22 +0200 |
| commit | 5bb78269000cf326bfdfa19f79449c02a9158020 (patch) | |
| tree | f01e30e8d8f015cb0418331da55a459ddcfc9569 /Makefile | |
| parent | 9fe66dfd8846706ff11ed7990d06c92644973bd8 (diff) | |
| download | lwn-5bb78269000cf326bfdfa19f79449c02a9158020.tar.gz lwn-5bb78269000cf326bfdfa19f79449c02a9158020.zip | |
kbuild: rename prepare to archprepare to fix dependency chain
When introducing the generic asm-offsets.h support the dependency
chain for the prepare targets was changed. All build scripts expecting
include/asm/asm-offsets.h to be made when using the prepare target would broke.
With the limited number of prepare targets left in arch Makefiles
the trivial solution was to introduce a new arch specific target: archprepare
The dependency chain looks like this now:
prepare
|
+--> prepare0
|
+--> archprepare
|
+--> scripts_basic
+--> prepare1
|
+---> prepare2
|
+--> prepare3
So prepare 3 is processed before prepare2 etc.
This guaantees that the asm symlink, version.h, scripts_basic
are all updated before archprepare is processed.
prepare0 which build the asm-offsets.h file will need the
actions performed by archprepare.
The head target is now named prepare, because users scripts will most
likely use that target, but prepare-all has been kept for compatibility.
Updated Documentation/kbuild/makefiles.txt.
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 23 |
1 files changed, 15 insertions, 8 deletions
@@ -776,15 +776,20 @@ $(sort $(vmlinux-init) $(vmlinux-main)) $(vmlinux-lds): $(vmlinux-dirs) ; # Error messages still appears in the original language .PHONY: $(vmlinux-dirs) -$(vmlinux-dirs): prepare-all scripts +$(vmlinux-dirs): prepare scripts $(Q)$(MAKE) $(build)=$@ # Things we need to do before we recursively start building the kernel -# or the modules are listed in "prepare-all". -# A multi level approach is used. prepare1 is updated first, then prepare0. -# prepare-all is the collection point for the prepare targets. +# or the modules are listed in "prepare". +# A multi level approach is used. prepareN is processed before prepareN-1. +# archprepare is used in arch Makefiles and when processed asm symlink, +# version.h and scripts_basic is processed / created. -.PHONY: prepare-all prepare prepare0 prepare1 prepare2 prepare3 +# Listed in dependency order +.PHONY: prepare archprepare prepare0 prepare1 prepare2 prepare3 + +# prepare-all is deprecated, use prepare as valid replacement +.PHONY: prepare-all # prepare3 is used to check if we are building in a separate output directory, # and if so do: @@ -813,11 +818,13 @@ ifneq ($(KBUILD_MODULES),) $(Q)mkdir -p $(MODVERDIR) endif -prepare0: prepare prepare1 FORCE +archprepare: prepare1 scripts_basic + +prepare0: archprepare FORCE $(Q)$(MAKE) $(build)=. # All the preparing.. -prepare-all: prepare0 +prepare prepare-all: prepare0 # Leave this as default for preprocessing vmlinux.lds.S, which is now # done in arch/$(ARCH)/kernel/Makefile @@ -908,7 +915,7 @@ modules: $(vmlinux-dirs) $(if $(KBUILD_BUILTIN),vmlinux) # Target to prepare building external modules .PHONY: modules_prepare -modules_prepare: prepare-all scripts +modules_prepare: prepare scripts # Target to install modules .PHONY: modules_install |