876c33051a
The important one is $(MAKE). make handles recipes containing the literal string "$(MAKE)" specially, so it is important to make sure it isn't evaluated until recipe invocation time.
106 lines
3.2 KiB
Makefile
106 lines
3.2 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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ifdef CFG_ENABLE_FAST_MAKE
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LLVM_DEPS := $(S)/.gitmodules
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else
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# This is just a rough approximation of LLVM deps
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LLVM_DEPS_SRC=$(call rwildcard,$(CFG_LLVM_SRC_DIR)lib,*cpp *hpp)
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LLVM_DEPS_INC=$(call rwildcard,$(CFG_LLVM_SRC_DIR)include,*cpp *hpp)
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LLVM_DEPS=$(LLVM_DEPS_SRC) $(LLVM_DEPS_INC)
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endif
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ifdef CFG_DISABLE_OPTIMIZE_LLVM
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LLVM_BUILD_CONFIG_MODE := Debug
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else
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LLVM_BUILD_CONFIG_MODE := Release
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endif
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define DEF_LLVM_RULES
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# If CFG_LLVM_ROOT is defined then we don't build LLVM ourselves
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ifeq ($(CFG_LLVM_ROOT),)
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LLVM_STAMP_$(1) = $$(CFG_LLVM_BUILD_DIR_$(1))/llvm-auto-clean-stamp
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ifeq ($$(findstring msvc,$(1)),msvc)
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$$(LLVM_CONFIG_$(1)): $$(LLVM_DEPS) $$(LLVM_STAMP_$(1))
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@$$(call E, cmake: llvm)
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$$(Q)$$(CFG_CMAKE) --build $$(CFG_LLVM_BUILD_DIR_$(1)) \
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--config $$(LLVM_BUILD_CONFIG_MODE)
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$$(Q)touch $$(LLVM_CONFIG_$(1))
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clean-llvm$(1):
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else
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$$(LLVM_CONFIG_$(1)): $$(LLVM_DEPS) $$(LLVM_STAMP_$(1))
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@$$(call E, make: llvm)
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$$(Q)$$(MAKE) -C $$(CFG_LLVM_BUILD_DIR_$(1)) $$(CFG_LLVM_BUILD_ENV_$(1)) ONLY_TOOLS="$$(LLVM_TOOLS)"
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$$(Q)touch $$(LLVM_CONFIG_$(1))
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clean-llvm$(1):
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$$(Q)$$(MAKE) -C $$(CFG_LLVM_BUILD_DIR_$(1)) clean
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endif
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else
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clean-llvm$(1):
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endif
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$$(LLVM_AR_$(1)): $$(LLVM_CONFIG_$(1))
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# This is used to independently force an LLVM clean rebuild
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# when we changed something not otherwise captured by builtin
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# dependencies. In these cases, commit a change that touches
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# the stamp in the source dir.
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$$(LLVM_STAMP_$(1)): $$(S)src/rustllvm/llvm-auto-clean-trigger
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@$$(call E, make: cleaning llvm)
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$$(Q)touch $$@.start_time
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$$(Q)$$(MAKE) clean-llvm$(1)
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@$$(call E, make: done cleaning llvm)
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touch -r $$@.start_time $$@ && rm $$@.start_time
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ifeq ($$(CFG_ENABLE_LLVM_STATIC_STDCPP),1)
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LLVM_STDCPP_RUSTFLAGS_$(1) = -L "$$(dir $$(shell $$(CC_$(1)) $$(CFG_GCCISH_CFLAGS_$(1)) \
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-print-file-name=lib$(CFG_STDCPP_NAME).a))"
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else
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LLVM_STDCPP_RUSTFLAGS_$(1) =
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endif
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# LLVM linkage:
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LLVM_LINKAGE_PATH_$(1):=$$(abspath $$(RT_OUTPUT_DIR_$(1))/llvmdeps.rs)
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$$(LLVM_LINKAGE_PATH_$(1)): $(S)src/etc/mklldeps.py $$(LLVM_CONFIG_$(1))
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$(Q)$(CFG_PYTHON) "$$<" "$$@" "$$(LLVM_COMPONENTS)" "$$(CFG_ENABLE_LLVM_STATIC_STDCPP)" \
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$$(LLVM_CONFIG_$(1)) "$(CFG_STDCPP_NAME)"
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endef
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$(foreach host,$(CFG_HOST), \
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$(eval $(call DEF_LLVM_RULES,$(host))))
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$(foreach host,$(CFG_HOST), \
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$(eval LLVM_CONFIGS := $(LLVM_CONFIGS) $(LLVM_CONFIG_$(host))))
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# This can't be done in target.mk because it's included before this file.
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define LLVM_LINKAGE_DEPS
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$$(TLIB$(1)_T_$(2)_H_$(3))/stamp.rustc_llvm: $$(LLVM_LINKAGE_PATH_$(2))
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endef
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$(foreach source,$(CFG_HOST), \
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$(foreach target,$(CFG_TARGET), \
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$(eval $(call LLVM_LINKAGE_DEPS,0,$(target),$(source))) \
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$(eval $(call LLVM_LINKAGE_DEPS,1,$(target),$(source))) \
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$(eval $(call LLVM_LINKAGE_DEPS,2,$(target),$(source))) \
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$(eval $(call LLVM_LINKAGE_DEPS,3,$(target),$(source)))))
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