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authorSam Ravnborg <sam@mars.ravnborg.org>2005-09-11 16:30:22 -0400
committerSam Ravnborg <sam@mars.ravnborg.org>2005-09-11 16:30:22 -0400
commit5bb78269000cf326bfdfa19f79449c02a9158020 (patch)
treef01e30e8d8f015cb0418331da55a459ddcfc9569 /Documentation
parent9fe66dfd8846706ff11ed7990d06c92644973bd8 (diff)
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 'Documentation')
-rw-r--r--Documentation/kbuild/makefiles.txt14
1 files changed, 7 insertions, 7 deletions
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 9a1586590d8..d802ce88bed 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -31,7 +31,7 @@ This document describes the Linux kernel Makefiles.
31 31
32 === 6 Architecture Makefiles 32 === 6 Architecture Makefiles
33 --- 6.1 Set variables to tweak the build to the architecture 33 --- 6.1 Set variables to tweak the build to the architecture
34 --- 6.2 Add prerequisites to prepare: 34 --- 6.2 Add prerequisites to archprepare:
35 --- 6.3 List directories to visit when descending 35 --- 6.3 List directories to visit when descending
36 --- 6.4 Architecture specific boot images 36 --- 6.4 Architecture specific boot images
37 --- 6.5 Building non-kbuild targets 37 --- 6.5 Building non-kbuild targets
@@ -734,18 +734,18 @@ When kbuild executes the following steps are followed (roughly):
734 for loadable kernel modules. 734 for loadable kernel modules.
735 735
736 736
737--- 6.2 Add prerequisites to prepare: 737--- 6.2 Add prerequisites to archprepare:
738 738
739 The prepare: rule is used to list prerequisites that needs to be 739 The archprepare: rule is used to list prerequisites that needs to be
740 built before starting to descend down in the subdirectories. 740 built before starting to descend down in the subdirectories.
741 This is usual header files containing assembler constants. 741 This is usual header files containing assembler constants.
742 742
743 Example: 743 Example:
744 #arch/s390/Makefile 744 #arch/arm/Makefile
745 prepare: include/asm-$(ARCH)/offsets.h 745 archprepare: maketools
746 746
747 In this example the file include/asm-$(ARCH)/offsets.h will 747 In this example the file target maketools will be processed
748 be built before descending down in the subdirectories. 748 before descending down in the subdirectories.
749 See also chapter XXX-TODO that describe how kbuild supports 749 See also chapter XXX-TODO that describe how kbuild supports
750 generating offset header files. 750 generating offset header files.
751 751