126 lines
4.0 KiB
Makefile
126 lines
4.0 KiB
Makefile
# StageN template: arg 1 is the N we're building *from*, arg 2 is N+1.
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#
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# The easiest way to read this template is to assume we're building stage2
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# using stage1, and mentally gloss $(1) as 1, $(2) as 2.
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#
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# LIBGEN is pulled out seperately because we need to specially invoke
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# it to build stage0/lib/libstd using stage0/rustc and to use the
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# new rustrt in stage0/lib/.
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define LIBGEN
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ifdef CFG_USE_SNAP_LIBS_FOR_STAGE1
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ifeq ($(2), 0)
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RUNTIME_SOURCE = stage0/$(CFG_RUNTIME)
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stage$(2)/lib/$$(CFG_STDLIB): stage0/$$(CFG_STDLIB)
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@$$(call E, cp: $$@)
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$$(Q)cp $$< $$@
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else
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RUNTIME_SOURCE = rt/$(CFG_RUNTIME)
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stage$(2)/lib/$$(CFG_STDLIB): $$(STDLIB_CRATE) $$(STDLIB_INPUTS) \
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stage$(2)/rustc$$(X) \
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stage$(2)/$$(CFG_RUNTIME) \
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stage$(2)/$$(CFG_RUSTLLVM) \
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stage$(2)/lib/glue.o \
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$$(SREQ$(1))
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@$$(call E, compile_and_link: $$@)
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$$(STAGE$(2)) --lib -o $$@ $$<
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endif
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endif
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stage$(2)/lib/libstd.rlib: $$(STDLIB_CRATE) $$(STDLIB_INPUTS) \
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stage$(2)/rustc$$(X) \
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stage$(2)/$$(CFG_RUNTIME) \
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stage$(2)/$$(CFG_RUSTLLVM) \
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stage$(2)/lib/glue.o \
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$$(SREQ$(1))
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@$$(call E, compile_and_link: $$@)
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$$(STAGE$(2)) --lib --static -o $$@ $$<
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stage$(2)/lib/$$(CFG_RUNTIME): $$(RUNTIME_SOURCE)
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@$$(call E, cp: $$@)
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$$(Q)cp $$< $$@
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endef
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define STAGEN
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# Host libraries and executables (stage$(2)/rustc and its runtime needs)
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#
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# NB: Due to make not wanting to run the same implicit rules twice on the same
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# rule tree (implicit-rule recursion prevention, see "Chains of Implicit
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# Rules" in GNU Make manual) we have to re-state the %.o and %.s patterns here
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# for different directories, to handle cases where (say) a test relies on a
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# compiler that relies on a .o file.
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STAGE$(2) := $$(Q)$$(call CFG_RUN_TARG,stage$(2), \
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$$(CFG_VALGRIND_COMPILE) stage$(2)/rustc$$(X) \
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$$(CFG_RUSTC_FLAGS))
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stage$(2)/%.o: stage$(2)/%.s
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@$$(call E, assemble [gcc]: $$@)
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$$(Q)gcc $$(CFG_GCCISH_CFLAGS) -o $$@ -c $$<
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stage$(2)/rustc$$(X): $$(COMPILER_CRATE) $$(COMPILER_INPUTS) \
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stage$(2)/$$(CFG_RUNTIME) \
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$$(call CFG_STDLIB_DEFAULT,stage$(1),stage$(2)) \
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stage$(2)/$$(CFG_RUSTLLVM) \
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$$(SREQ$(1))
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@$$(call E, compile_and_link: $$@)
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$$(STAGE$(1)) -L stage$(2) -o $$@ $$<
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RUNTIME_SOURCE = rt/$(CFG_RUNTIME)
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STDLIB_SOURCE = stage$(1)/lib/$$(CFG_STDLIB)
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ifdef CFG_USE_SNAP_LIBS_FOR_STAGE1
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ifeq ($(2), 1)
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RUNTIME_SOURCE = stage0/$(CFG_RUNTIME)
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STDLIB_SOURCE = stage0/$(CFG_STDLIB)
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endif
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endif
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stage$(2)/$$(CFG_RUNTIME): $$(RUNTIME_SOURCE)
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@$$(call E, cp: $$@)
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$$(Q)cp $$< $$@
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stage$(2)/$$(CFG_STDLIB): $$(STDLIB_SOURCE)
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@$$(call E, cp: $$@)
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$$(Q)cp $$< $$@
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stage$(2)/$$(CFG_RUSTLLVM): rustllvm/$$(CFG_RUSTLLVM)
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@$$(call E, cp: $$@)
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$$(Q)cp $$< $$@
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# Target libraries (for binaries generated by stage$(2)/rustc)
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stage$(2)/lib/intrinsics.bc: $$(INTRINSICS_BC)
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@$$(call E, cp: $$@)
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$$(Q)cp $$< $$@
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stage$(2)/lib/glue.o: stage$(2)/rustc$$(X) \
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stage$(2)/$$(CFG_RUNTIME) \
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stage$(2)/$$(CFG_RUSTLLVM) \
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stage$(2)/lib/intrinsics.bc \
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$$(SREQ$(1))
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@$$(call E, generate: $$@)
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$$(STAGE$(2)) -c -o $$@ --glue
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$(eval $(call LIBGEN,$(1),$(2)))
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stage$(2)/lib/main.o: rt/main.o
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@$$(call E, cp: $$@)
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$$(Q)cp $$< $$@
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stage$(2)/lib/$$(CFG_LIBRUSTC): $$(COMPILER_CRATE) $$(COMPILER_INPUTS) \
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$$(SREQ$(2))
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@$$(call E, compile_and_link: $$@)
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$$(STAGE$(2)) --lib -o $$@ $$<
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endef
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# Instantiate template for 0->1, 1->2, 2->3 build dirs
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$(eval $(call STAGEN,0,1))
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$(eval $(call STAGEN,1,2))
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$(eval $(call STAGEN,2,3))
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