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build: move as-option-add to xen/
Only xen/ uses as-option-add and as-insn, so there aren't needed in Config.mk. Signed-off-by: Anthony PERARD <anthony.perard@citrix.com> Acked-by: Jan Beulich <jbeulich@suse.com>
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Anthony PERARD authored and Jan Beulich committed
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@@ -143,23 +143,6 @@ ifndef XEN_HAS_CHECKPOLICY
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export XEN_HAS_CHECKPOLICY
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endif
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# as-insn: Check whether assembler supports an instruction.
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# Usage: cflags-y += $(call as-insn,CC FLAGS,"insn",option-yes,option-no)
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as-insn = $(if $(shell echo 'void _(void) { asm volatile ( $(2) ); }' \
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| $(filter-out -M% %.d -include %/include/xen/config.h,$(1)) \
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-c -x c -o /dev/null - 2>&1),$(4),$(3))
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# as-option-add: Conditionally add options to flags
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# Usage: $(call as-option-add,CFLAGS,CC,"insn",option-yes,option-no)
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as-option-add = $(eval $(call as-option-add-closure,$(1),$(2),$(3),$(4),$(5)))
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define as-option-add-closure
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ifeq ($$(call as-insn,$$($(2)) $$($(1)),$(3),y,n),y)
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$(1) += $(4)
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else
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$(1) += $(5)
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endif
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endef
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define buildmakevars2shellvars
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export PREFIX="$(prefix)"; \
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export XEN_SCRIPT_DIR="$(XEN_SCRIPT_DIR)"; \
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@@ -7,6 +7,23 @@
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DEPS = .*.d
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DEPS_INCLUDE = $(addsuffix .d2, $(basename $(wildcard $(DEPS))))
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# as-insn: Check whether assembler supports an instruction.
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# Usage: cflags-y += $(call as-insn,CC FLAGS,"insn",option-yes,option-no)
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as-insn = $(if $(shell echo 'void _(void) { asm volatile ( $(2) ); }' \
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| $(filter-out -M% %.d -include %/include/xen/config.h,$(1)) \
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-c -x c -o /dev/null - 2>&1),$(4),$(3))
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# as-option-add: Conditionally add options to flags
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# Usage: $(call as-option-add,CFLAGS,CC,"insn",option-yes,option-no)
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as-option-add = $(eval $(call as-option-add-closure,$(1),$(2),$(3),$(4),$(5)))
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define as-option-add-closure
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ifeq ($$(call as-insn,$$($(2)) $$($(1)),$(3),y,n),y)
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$(1) += $(4)
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else
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$(1) += $(5)
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endif
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endef
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# cc-ifversion
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# Usage: EXTRA_CFLAGS += $(call cc-ifversion, -lt, 0402, -O1)
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cc-ifversion = $(shell [ $(CONFIG_GCC_VERSION)0 $(1) $(2)000 ] && echo $(3) || echo $(4))
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