Kbuild: allow arch/xxx to use a different source path
Preparatory patch for the source merge of arch/i386 and arch/x86_64 into arch/x86. This allows to keep the original arch directories as stubs for the main Makefiles, Kconfigs et. al during the transition phase while having the code in the new arch/x86 directory. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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2 changed files with 7 additions and 6 deletions
6
Kbuild
6
Kbuild
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@ -12,7 +12,7 @@ offsets-file := include/asm-$(ARCH)/asm-offsets.h
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always := $(offsets-file)
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targets := $(offsets-file)
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targets += arch/$(ARCH)/kernel/asm-offsets.s
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targets += arch/$(SRCARCH)/kernel/asm-offsets.s
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clean-files := $(addprefix $(objtree)/,$(targets))
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# Default sed regexp - multiline due to syntax constraints
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@ -40,11 +40,11 @@ define cmd_offsets
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endef
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# We use internal kbuild rules to avoid the "is up to date" message from make
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arch/$(ARCH)/kernel/asm-offsets.s: arch/$(ARCH)/kernel/asm-offsets.c FORCE
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arch/$(SRCARCH)/kernel/asm-offsets.s: arch/$(SRCARCH)/kernel/asm-offsets.c FORCE
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$(Q)mkdir -p $(dir $@)
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$(call if_changed_dep,cc_s_c)
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$(obj)/$(offsets-file): arch/$(ARCH)/kernel/asm-offsets.s Kbuild
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$(obj)/$(offsets-file): arch/$(SRCARCH)/kernel/asm-offsets.s Kbuild
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$(Q)mkdir -p $(dir $@)
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$(call cmd,offsets)
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7
Makefile
7
Makefile
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@ -186,7 +186,8 @@ ARCH ?= $(SUBARCH)
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CROSS_COMPILE ?=
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# Architecture as present in compile.h
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UTS_MACHINE := $(ARCH)
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UTS_MACHINE := $(ARCH)
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SRCARCH := $(ARCH)
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KCONFIG_CONFIG ?= .config
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@ -322,7 +323,7 @@ KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
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KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
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export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
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export ARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
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export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
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export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE
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export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
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@ -609,7 +610,7 @@ libs-y := $(libs-y1) $(libs-y2)
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vmlinux-init := $(head-y) $(init-y)
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vmlinux-main := $(core-y) $(libs-y) $(drivers-y) $(net-y)
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vmlinux-all := $(vmlinux-init) $(vmlinux-main)
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vmlinux-lds := arch/$(ARCH)/kernel/vmlinux.lds
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vmlinux-lds := arch/$(SRCARCH)/kernel/vmlinux.lds
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export KBUILD_VMLINUX_OBJS := $(vmlinux-all)
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# Rule to link vmlinux - also used during CONFIG_KALLSYMS
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