From: Sam Ravnborg Date: Sun, 11 Sep 2005 20:30:22 +0000 (+0200) Subject: kbuild: rename prepare to archprepare to fix dependency chain X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=5bb78269000cf326bfdfa19f79449c02a9158020;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git 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 --- diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt index 9a1586590d82..d802ce88bedc 100644 --- a/Documentation/kbuild/makefiles.txt +++ b/Documentation/kbuild/makefiles.txt @@ -31,7 +31,7 @@ This document describes the Linux kernel Makefiles. === 6 Architecture Makefiles --- 6.1 Set variables to tweak the build to the architecture - --- 6.2 Add prerequisites to prepare: + --- 6.2 Add prerequisites to archprepare: --- 6.3 List directories to visit when descending --- 6.4 Architecture specific boot images --- 6.5 Building non-kbuild targets @@ -734,18 +734,18 @@ When kbuild executes the following steps are followed (roughly): for loadable kernel modules. ---- 6.2 Add prerequisites to prepare: +--- 6.2 Add prerequisites to archprepare: - The prepare: rule is used to list prerequisites that needs to be + The archprepare: rule is used to list prerequisites that needs to be built before starting to descend down in the subdirectories. This is usual header files containing assembler constants. Example: - #arch/s390/Makefile - prepare: include/asm-$(ARCH)/offsets.h + #arch/arm/Makefile + archprepare: maketools - In this example the file include/asm-$(ARCH)/offsets.h will - be built before descending down in the subdirectories. + In this example the file target maketools will be processed + before descending down in the subdirectories. See also chapter XXX-TODO that describe how kbuild supports generating offset header files. diff --git a/Makefile b/Makefile index 382298f37adf..e90ee6a3eef4 100644 --- a/Makefile +++ b/Makefile @@ -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 diff --git a/arch/arm/Makefile b/arch/arm/Makefile index e625ac66f49b..130e6228b587 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -175,7 +175,7 @@ else endif @touch $@ -prepare: maketools include/asm-arm/.arch +archprepare: maketools include/asm-arm/.arch .PHONY: maketools FORCE maketools: include/linux/version.h FORCE diff --git a/arch/cris/Makefile b/arch/cris/Makefile index a00043a91f16..ea65d585cf5e 100644 --- a/arch/cris/Makefile +++ b/arch/cris/Makefile @@ -107,7 +107,7 @@ archclean: rm -f timage vmlinux.bin decompress.bin rescue.bin cramfs.img rm -rf $(LD_SCRIPT).tmp -prepare: $(SRC_ARCH)/.links $(srctree)/include/asm-$(ARCH)/.arch +archprepare: $(SRC_ARCH)/.links $(srctree)/include/asm-$(ARCH)/.arch # Create some links to make all tools happy $(SRC_ARCH)/.links: diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile index 7ed678cf5e41..70f8ed2748d1 100644 --- a/arch/ia64/Makefile +++ b/arch/ia64/Makefile @@ -82,7 +82,7 @@ unwcheck: vmlinux archclean: $(Q)$(MAKE) $(clean)=$(boot) -prepare: include/asm-ia64/.offsets.h.stamp +archprepare: include/asm-ia64/.offsets.h.stamp include/asm-ia64/.offsets.h.stamp: mkdir -p include/asm-ia64 diff --git a/arch/ppc/Makefile b/arch/ppc/Makefile index 6dd7b50e0669..16e2675f3270 100644 --- a/arch/ppc/Makefile +++ b/arch/ppc/Makefile @@ -107,7 +107,7 @@ archclean: # Temporary hack until we have migrated to asm-powerpc $(Q)rm -rf arch/$(ARCH)/include -prepare: checkbin +archprepare: checkbin # Temporary hack until we have migrated to asm-powerpc include/asm: arch/$(ARCH)/include/asm diff --git a/arch/sh/Makefile b/arch/sh/Makefile index 19f00d57acf0..4a3049080b41 100644 --- a/arch/sh/Makefile +++ b/arch/sh/Makefile @@ -152,7 +152,7 @@ endif @touch $@ -prepare: maketools include/asm-sh/.cpu include/asm-sh/.mach +archprepare: maketools include/asm-sh/.cpu include/asm-sh/.mach .PHONY: maketools FORCE maketools: include/linux/version.h FORCE diff --git a/arch/sh64/Makefile b/arch/sh64/Makefile index 39073734a476..8ca57ffa2b70 100644 --- a/arch/sh64/Makefile +++ b/arch/sh64/Makefile @@ -73,7 +73,7 @@ compressed: zImage archclean: $(Q)$(MAKE) $(clean)=$(boot) -prepare: arch/$(ARCH)/lib/syscalltab.h +archprepare: arch/$(ARCH)/lib/syscalltab.h define filechk_gen-syscalltab (set -e; \ diff --git a/arch/um/Makefile b/arch/um/Makefile index 154803a22698..ce987266dac6 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -107,7 +107,7 @@ else $(shell cd $(ARCH_DIR) && ln -sf Kconfig.$(SUBARCH) Kconfig.arch) endif -prepare: $(ARCH_SYMLINKS) $(SYS_HEADERS) $(GEN_HEADERS) +archprepare: $(ARCH_SYMLINKS) $(SYS_HEADERS) $(GEN_HEADERS) LINK-$(CONFIG_LD_SCRIPT_STATIC) += -static LINK-$(CONFIG_LD_SCRIPT_DYN) += -Wl,-rpath,/lib diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile index 67ef4cd173b9..98fac8489aed 100644 --- a/arch/xtensa/Makefile +++ b/arch/xtensa/Makefile @@ -66,7 +66,7 @@ boot := arch/xtensa/boot archinc := include/asm-xtensa -prepare: $(archinc)/.platform +archprepare: $(archinc)/.platform # Update machine cpu and platform symlinks if something which affects # them changed.