169 lines
6.5 KiB
Makefile
169 lines
6.5 KiB
Makefile
# Copyright 2012 The Rust Project Developers. See the COPYRIGHT
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# file at the top-level directory of this distribution and at
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# http://rust-lang.org/COPYRIGHT.
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#
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# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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# option. This file may not be copied, modified, or distributed
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# except according to those terms.
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# This is the compile-time target-triple for the compiler. For the compiler at
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# runtime, this should be considered the host-triple. More explanation for why
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# this exists can be found on issue #2400
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export CFG_COMPILER
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# The standard libraries should be held up to a higher standard than any old
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# code, make sure that these common warnings are denied by default. These can
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# be overridden during development temporarily. For stage0, we allow warnings
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# which may be bugs in stage0 (should be fixed in stage1+)
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WFLAGS_ST0 = -W warnings
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WFLAGS_ST1 = -D warnings
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WFLAGS_ST2 = -D warnings
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# Macro that generates the full list of dependencies for a crate at a particular
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# stage/target/host tuple.
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#
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# $(1) - stage
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# $(2) - target
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# $(3) - host
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# $(4) crate
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define RUST_CRATE_FULLDEPS
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CRATE_FULLDEPS_$(1)_T_$(2)_H_$(3)_$(4) := \
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$$(CRATEFILE_$(4)) \
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$$(RSINPUTS_$(4)) \
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$$(foreach dep,$$(RUST_DEPS_$(4)), \
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$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(dep)) \
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$$(foreach dep,$$(NATIVE_DEPS_$(4)), \
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$$(RT_OUTPUT_DIR_$(2))/$$(call CFG_STATIC_LIB_NAME_$(2),$$(dep)))
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endef
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$(foreach host,$(CFG_HOST), \
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$(foreach target,$(CFG_TARGET), \
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$(foreach stage,$(STAGES), \
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$(foreach crate,$(CRATES), \
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$(eval $(call RUST_CRATE_FULLDEPS,$(stage),$(target),$(host),$(crate)))))))
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# RUST_TARGET_STAGE_N template: This defines how target artifacts are built
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# for all stage/target architecture combinations. This is one giant rule which
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# works as follows:
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#
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# 1. The immediate dependencies are the rust source files
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# 2. Each rust crate dependency is listed (based on their stamp files),
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# as well as all native dependencies (listed in RT_OUTPUT_DIR)
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# 3. The stage (n-1) compiler is required through the TSREQ dependency, along
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# with the morestack library
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# 4. When actually executing the rule, the first thing we do is to clean out
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# old libs and rlibs via the REMOVE_ALL_OLD_GLOB_MATCHES macro
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# 5. Finally, we get around to building the actual crate. It's just one
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# "small" invocation of the previous stage rustc. We use -L to
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# RT_OUTPUT_DIR so all the native dependencies are picked up.
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# Additionally, we pass in the llvm dir so rustc can link against it.
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# 6. Some cleanup is done (listing what was just built) if verbose is turned
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# on.
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#
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# $(1) is the stage
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# $(2) is the target triple
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# $(3) is the host triple
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# $(4) is the crate name
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define RUST_TARGET_STAGE_N
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$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$(4): CFG_COMPILER = $(2)
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$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$(4): \
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$$(CRATEFILE_$(4)) \
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$$(CRATE_FULLDEPS_$(1)_T_$(2)_H_$(3)_$(4)) \
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$$(TSREQ$(1)_T_$(2)_H_$(3)) \
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| $$(TLIB$(1)_T_$(2)_H_$(3))/
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@$$(call E, oxidize: $$(@D)/lib$(4))
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$$(call REMOVE_ALL_OLD_GLOB_MATCHES,\
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$$(dir $$@)$$(call CFG_LIB_GLOB_$(2),$(4)))
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$$(call REMOVE_ALL_OLD_GLOB_MATCHES,\
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$$(dir $$@)$$(call CFG_RLIB_GLOB,$(4)))
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$$(STAGE$(1)_T_$(2)_H_$(3)) \
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$$(WFLAGS_ST$(1)) \
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-L "$$(RT_OUTPUT_DIR_$(2))" \
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-L "$$(LLVM_LIBDIR_$(2))" \
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--out-dir $$(@D) $$<
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@touch $$@
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$$(call LIST_ALL_OLD_GLOB_MATCHES,\
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$$(dir $$@)$$(call CFG_LIB_GLOB_$(2),$(4)))
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$$(call LIST_ALL_OLD_GLOB_MATCHES,\
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$$(dir $$@)$$(call CFG_RLIB_GLOB,$(4)))
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endef
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# Macro for building any tool as part of the rust compilation process. Each
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# tool is defined in crates.mk with a list of library dependencies as well as
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# the source file for the tool. Building each tool will also be passed '--cfg
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# <tool>' for usage in driver.rs
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#
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# This build rule is similar to the one found above, just tweaked for
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# locations and things.
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#
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# $(1) - stage
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# $(2) - target triple
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# $(3) - host triple
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# $(4) - name of the tool being built
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define TARGET_TOOL
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$$(TBIN$(1)_T_$(2)_H_$(3))/$(4)$$(X_$(2)): \
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$$(TOOL_SOURCE_$(4)) \
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$$(TOOL_INPUTS_$(4)) \
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$$(foreach dep,$$(TOOL_DEPS_$(4)), \
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$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(dep)) \
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$$(TSREQ$(1)_T_$(2)_H_$(3)) \
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| $$(TBIN$(1)_T_$(4)_H_$(3))/
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@$$(call E, oxidize: $$@)
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$$(STAGE$(1)_T_$(2)_H_$(3)) -o $$@ $$< --cfg $(4)
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endef
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# Every recipe in RUST_TARGET_STAGE_N outputs to $$(TLIB$(1)_T_$(2)_H_$(3),
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# a directory that can be cleaned out during the middle of a run of
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# the get-snapshot.py script. Therefore, every recipe needs to have
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# an order-only dependency either on $(SNAPSHOT_RUSTC_POST_CLEANUP) or
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# on $$(TSREQ$(1)_T_$(2)_H_$(3)), to ensure that no products will be
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# put into the target area until after the get-snapshot.py script has
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# had its chance to clean it out; otherwise the other products will be
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# inadvertantly included in the clean out.
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SNAPSHOT_RUSTC_POST_CLEANUP=$(HBIN0_H_$(CFG_BUILD))/rustc$(X_$(CFG_BUILD))
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define TARGET_HOST_RULES
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$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.rustc: $(S)src/librustc/lib/llvmdeps.rs
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$$(TBIN$(1)_T_$(2)_H_$(3))/:
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mkdir -p $$@
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$$(TLIB$(1)_T_$(2)_H_$(3))/:
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mkdir -p $$@
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$$(TLIB$(1)_T_$(2)_H_$(3))/libmorestack.a: \
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$$(RT_OUTPUT_DIR_$(2))/$$(call CFG_STATIC_LIB_NAME_$(2),morestack) \
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| $$(TLIB$(1)_T_$(2)_H_$(3))/ $$(SNAPSHOT_RUSTC_POST_CLEANUP)
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@$$(call E, cp: $$@)
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$$(Q)cp $$< $$@
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endef
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$(foreach source,$(CFG_HOST), \
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$(foreach target,$(CFG_TARGET), \
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$(eval $(call TARGET_HOST_RULES,0,$(target),$(source))) \
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$(eval $(call TARGET_HOST_RULES,1,$(target),$(source))) \
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$(eval $(call TARGET_HOST_RULES,2,$(target),$(source))) \
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$(eval $(call TARGET_HOST_RULES,3,$(target),$(source)))))
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# In principle, each host can build each target for both libs and tools
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$(foreach crate,$(CRATES), \
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$(foreach source,$(CFG_HOST), \
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$(foreach target,$(CFG_TARGET), \
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$(eval $(call RUST_TARGET_STAGE_N,0,$(target),$(source),$(crate))) \
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$(eval $(call RUST_TARGET_STAGE_N,1,$(target),$(source),$(crate))) \
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$(eval $(call RUST_TARGET_STAGE_N,2,$(target),$(source),$(crate))) \
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$(eval $(call RUST_TARGET_STAGE_N,3,$(target),$(source),$(crate))))))
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$(foreach host,$(CFG_HOST), \
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$(foreach target,$(CFG_TARGET), \
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$(foreach stage,$(STAGES), \
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$(foreach tool,$(TOOLS), \
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$(eval $(call TARGET_TOOL,$(stage),$(target),$(host),$(tool)))))))
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