rust/mk/stage0.mk

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# Extract the snapshot host compiler
$(HBIN0_H_$(CFG_BUILD_TRIPLE))/rustc$(X_$(CFG_BUILD_TRIPLE)): \
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$(S)src/snapshots.txt \
$(S)src/etc/get-snapshot.py $(MKFILE_DEPS)
@$(call E, fetch: $@)
# Note: the variable "SNAPSHOT_FILE" is generally not set, and so
# we generally only pass one argument to this script.
ifdef CFG_ENABLE_LOCAL_RUST
$(Q)$(S)src/etc/local_stage0.sh $(CFG_BUILD_TRIPLE) $(CFG_LOCAL_RUST_ROOT)
else
$(Q)$(CFG_PYTHON) $(S)src/etc/get-snapshot.py $(CFG_BUILD_TRIPLE) $(SNAPSHOT_FILE)
ifdef CFG_ENABLE_PAX_FLAGS
@$(call E, apply PaX flags: $@)
@"$(CFG_PAXCTL)" -cm "$@"
endif
endif
$(Q)touch $@
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# Host libs will be extracted by the above rule
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$(HLIB0_H_$(CFG_BUILD_TRIPLE))/$(CFG_RUNTIME_$(CFG_BUILD_TRIPLE)): \
$(HBIN0_H_$(CFG_BUILD_TRIPLE))/rustc$(X_$(CFG_BUILD_TRIPLE))
$(Q)touch $@
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$(HLIB0_H_$(CFG_BUILD_TRIPLE))/$(CFG_CORELIB_$(CFG_BUILD_TRIPLE)): \
$(HBIN0_H_$(CFG_BUILD_TRIPLE))/rustc$(X_$(CFG_BUILD_TRIPLE))
$(Q)touch $@
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$(HLIB0_H_$(CFG_BUILD_TRIPLE))/$(CFG_STDLIB_$(CFG_BUILD_TRIPLE)): \
$(HBIN0_H_$(CFG_BUILD_TRIPLE))/rustc$(X_$(CFG_BUILD_TRIPLE))
$(Q)touch $@
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$(HLIB0_H_$(CFG_BUILD_TRIPLE))/$(CFG_LIBRUSTC_$(CFG_BUILD_TRIPLE)): \
$(HBIN0_H_$(CFG_BUILD_TRIPLE))/rustc$(X_$(CFG_BUILD_TRIPLE))
$(Q)touch $@
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$(HLIB0_H_$(CFG_BUILD_TRIPLE))/$(CFG_RUSTLLVM_$(CFG_BUILD_TRIPLE)): \
$(HBIN0_H_$(CFG_BUILD_TRIPLE))/rustc$(X_$(CFG_BUILD_TRIPLE))
$(Q)touch $@
# For other targets, let the host build the target:
define BOOTSTRAP_STAGE0
# $(1) target to bootstrap
# $(2) stage to bootstrap from
# $(3) target to bootstrap from
$$(HBIN0_H_$(1))/rustc$$(X_$(1)): \
$$(TBIN$(2)_T_$(1)_H_$(3))/rustc$$(X_$(1))
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
$$(HLIB0_H_$(1))/$(CFG_RUNTIME_$(1)): \
$$(TLIB$(2)_T_$(1)_H_$(3))/$(CFG_RUNTIME_$(1))
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
$$(HLIB0_H_$(1))/$(CFG_CORELIB_$(1)): \
$$(TLIB$(2)_T_$(1)_H_$(3))/$(CFG_CORELIB_$(1))
@$$(call E, cp: $$@)
$$(Q)cp $$(TLIB$(2)_T_$(1)_H_$(3))/$(CORELIB_GLOB_$(1)) $$@
$$(HLIB0_H_$(1))/$(CFG_STDLIB_$(1)): \
$$(TLIB$(2)_T_$(1)_H_$(3))/$(CFG_STDLIB_$(1))
@$$(call E, cp: $$@)
$$(Q)cp $$(TLIB$(2)_T_$(1)_H_$(3))/$(STDLIB_GLOB_$(1)) $$@
$$(HLIB0_H_$(1))/$(CFG_LIBRUSTC_$(1)): \
$$(TLIB$(2)_T_$(1)_H_$(3))/$(CFG_LIBRUSTC_$(1))
@$$(call E, cp: $$@)
$$(Q)cp $$(TLIB$(2)_T_$(1)_H_$(3))/$(LIBRUSTC_GLOB_$(1)) $$@
$$(HLIB0_H_$(1))/$(CFG_RUSTLLVM_$(1)): \
$$(TLIB$(2)_T_$(1)_H_$(3))/$(CFG_RUSTLLVM_$(1))
@$$(call E, cp: $$@)
$$(Q)cp $$< $$@
endef
# Use stage1 to build other architectures: then you don't have to wait
# for stage2, but you get the latest updates to the compiler source.
$(foreach t,$(NON_BUILD_HOST_TRIPLES), \
$(eval $(call BOOTSTRAP_STAGE0,$(t),1,$(CFG_BUILD_TRIPLE))))