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mk: Remove USE_SNAPSHOT_RT, etc. Obsolete. #4713 r=graydon

This commit is contained in:
Brian Anderson 2013-01-31 12:01:01 -08:00
parent adb9d0e8a1
commit e343abd0ed
1 changed files with 0 additions and 125 deletions
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125
mk/target.mk
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@ -14,13 +14,6 @@
# $(2) is the target triple
# $(3) is the host triple
# If you are making non-backwards compatible changes to the runtime
# (resp. corelib), set this flag to 1. It will cause stage1 to use
# the snapshot runtime (resp. corelib) rather than the runtime
# (resp. corelib) from the working directory.
USE_SNAPSHOT_RUNTIME=0
USE_SNAPSHOT_CORELIB=0
USE_SNAPSHOT_STDLIB=0
define TARGET_STAGE_N
@ -59,86 +52,17 @@ $$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_LIBSYNTAX): \
@$$(call E, compile_and_link: $$@)
$$(STAGE$(1)_T_$(2)_H_$(3)) $(BORROWCK) -o $$@ $$< && touch $$@
endef
# The stage0 (snapshot) compiler produces binaries that expect the
# snapshot runtime. Normally the working directory runtime and
# snapshot runtime are compatible, so this is no problem. But
# sometimes we want to make non-backwards-compatible changes. In
# those cases, the stage1 compiler and libraries (which are produced
# by stage0) should use the runtime from the snapshot. The stage2
# compiler and libraries (which are produced by stage1) will be the
# first that are expecting to run against the runtime as defined in
# the working directory.
#
# The catch is that you may not add new functions to the runtime
# in this case!
#
# Arguments are the same as for TARGET_BASE_STAGE_N
define TARGET_RT_FROM_SNAPSHOT
$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_RUNTIME): \
$$(HLIB$(1)_H_$(3))/$$(CFG_RUNTIME)
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
endef
# This rule copies from the runtime for the working directory. It
# applies to targets produced by stage1 or later. See comment on
# previous rule.
#
# Arguments are the same as for TARGET_BASE_STAGE_N
define TARGET_RT_FROM_WD
$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_RUNTIME): \
rt/$(2)/$$(CFG_RUNTIME)
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
endef
# As above, but builds the corelib either by taking it out of the
# snapshot or from the working directory.
define TARGET_CORELIB_FROM_SNAPSHOT
$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_CORELIB): \
$$(HLIB$(1)_H_$(3))/$$(CFG_CORELIB) \
$$(CORELIB_INPUTS) \
$$(TSREQ$(1)_T_$(2)_H_$(3))
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
$$(Q)cp $$(HLIB$(1)_H_$(3))/$$(CORELIB_GLOB) \
$$(TLIB$(1)_T_$(2)_H_$(3))
endef
define TARGET_CORELIB_FROM_WD
$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_CORELIB): \
$$(CORELIB_CRATE) $$(CORELIB_INPUTS) \
$$(TSREQ$(1)_T_$(2)_H_$(3))
@$$(call E, compile_and_link: $$@)
$$(STAGE$(1)_T_$(2)_H_$(3)) -o $$@ $$< && touch $$@
endef
define TARGET_STDLIB_FROM_SNAPSHOT
$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_STDLIB): \
$$(HLIB$(1)_H_$(3))/$$(CFG_STDLIB) \
$$(STDLIB_INPUTS) \
$$(TSREQ$(1)_T_$(2)_H_$(3))
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
$$(Q)cp $$(HLIB$(1)_H_$(3))/$$(STDLIB_GLOB) \
$$(TLIB$(1)_T_$(2)_H_$(3))
endef
define TARGET_STDLIB_FROM_WD
$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_STDLIB): \
$$(STDLIB_CRATE) $$(STDLIB_INPUTS) \
$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_CORELIB) \
@ -155,52 +79,3 @@ $(foreach source,$(CFG_TARGET_TRIPLES), \
$(eval $(call TARGET_STAGE_N,1,$(target),$(source))) \
$(eval $(call TARGET_STAGE_N,2,$(target),$(source))) \
$(eval $(call TARGET_STAGE_N,3,$(target),$(source)))))
# Host triple either uses the snapshot runtime or runtime from
# working directory, depending on the USE_SNAPSHOT_RUNTIME var.
ifeq ($(USE_SNAPSHOT_RUNTIME),1)
$(foreach src,$(CFG_HOST_TRIPLE),\
$(eval $(call TARGET_RT_FROM_SNAPSHOT,0,$(src),$(src))))
else
$(foreach src,$(CFG_HOST_TRIPLE),\
$(eval $(call TARGET_RT_FROM_WD,0,$(src),$(src))))
endif
ifeq ($(USE_SNAPSHOT_CORELIB),1)
$(foreach src,$(CFG_HOST_TRIPLE),\
$(eval $(call TARGET_CORELIB_FROM_SNAPSHOT,0,$(src),$(src))))
else
$(foreach src,$(CFG_HOST_TRIPLE),\
$(eval $(call TARGET_CORELIB_FROM_WD,0,$(src),$(src))))
endif
ifeq ($(USE_SNAPSHOT_STDLIB),1)
$(foreach src,$(CFG_HOST_TRIPLE),\
$(eval $(call TARGET_STDLIB_FROM_SNAPSHOT,0,$(src),$(src))))
else
$(foreach src,$(CFG_HOST_TRIPLE),\
$(eval $(call TARGET_STDLIB_FROM_WD,0,$(src),$(src))))
endif
# Non-host triples build the stage0 runtime from the working directory
$(foreach source,$(CFG_TARGET_TRIPLES), \
$(foreach target,$(NON_HOST_TRIPLES), \
$(eval $(call TARGET_RT_FROM_WD,0,$(target),$(source))) \
$(eval $(call TARGET_CORELIB_FROM_WD,0,$(target),$(source))) \
$(eval $(call TARGET_STDLIB_FROM_WD,0,$(target),$(source))) \
))
# After stage0, always build the stage0 runtime from the working directory
$(foreach source,$(CFG_TARGET_TRIPLES), \
$(foreach target,$(CFG_TARGET_TRIPLES), \
$(eval $(call TARGET_RT_FROM_WD,1,$(target),$(source))) \
$(eval $(call TARGET_RT_FROM_WD,2,$(target),$(source))) \
$(eval $(call TARGET_RT_FROM_WD,3,$(target),$(source))) \
$(eval $(call TARGET_CORELIB_FROM_WD,1,$(target),$(source))) \
$(eval $(call TARGET_CORELIB_FROM_WD,2,$(target),$(source))) \
$(eval $(call TARGET_CORELIB_FROM_WD,3,$(target),$(source))) \
$(eval $(call TARGET_STDLIB_FROM_WD,1,$(target),$(source))) \
$(eval $(call TARGET_STDLIB_FROM_WD,2,$(target),$(source))) \
$(eval $(call TARGET_STDLIB_FROM_WD,3,$(target),$(source))) \
))