517 lines
16 KiB
Makefile
517 lines
16 KiB
Makefile
# An explanation of how the build is structured:
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#
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# There are multiple build stages (0-3) needed to verify that the
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# compiler is properly self-hosting. Each stage is divided between
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# 'host' artifacts and 'target' artifacts, where the stageN host
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# compiler builds artifacts for 1 or more stageN target architectures.
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# Once the stageN target compiler has been built for the host
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# architecture it is promoted (copied) to a stageN+1 host artifact.
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#
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# The stage3 host compiler is a compiler that successfully builds
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# itself and should (in theory) be bitwise identical to the stage2
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# host compiler. The process is bootstrapped using a stage0 host
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# compiler downloaded from a previous snapshot.
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#
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# At no time should stageN artifacts be interacting with artifacts
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# from other stages. For consistency, we use the 'promotion' logic
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# for all artifacts, even those that don't make sense on non-host
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# architectures.
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#
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# The directory layout for a stage is intended to match the layout
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# of the installed compiler, and looks like the following:
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#
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# stageN - this is the system root, corresponding to, e.g. /usr
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# bin - binaries compiled for the host
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# lib - libraries used by the host compiler
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# rustc - rustc's own place to organize libraries
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# $(target) - target-specific artifacts
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# bin - binaries for target architectures
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# lib - libraries for target architectures
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#
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# A note about host libraries:
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#
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# The only libraries that get promoted to stageN/lib are those needed
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# by rustc. In general, rust programs, even those compiled for the
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# host architecture will use libraries from the target
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# directories. This gives rust some freedom to experiment with how
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# libraries are managed and versioned without polluting the common
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# areas of the filesystem.
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#
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# General rust binaries may stil live in the host bin directory; they
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# will just link against the libraries in the target lib directory.
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#
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# Admittedly this is a little convoluted.
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STAGES = 0 1 2 3
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######################################################################
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# Residual auto-configuration
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######################################################################
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# Recursive wildcard function
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# http://blog.jgc.org/2011/07/gnu-make-recursive-wildcard-function.html
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rwildcard=$(foreach d,$(wildcard $1*),$(call rwildcard,$d/,$2) \
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$(filter $(subst *,%,$2),$d))
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include config.mk
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MKFILE_DEPS := config.stamp $(call rwildcard,$(CFG_SRC_DIR)mk/,*)
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NON_HOST_TRIPLES = $(filter-out $(CFG_HOST_TRIPLE),$(CFG_TARGET_TRIPLES))
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ifneq ($(MAKE_RESTARTS),)
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CFG_INFO := $(info cfg: make restarts: $(MAKE_RESTARTS))
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endif
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CFG_INFO := $(info cfg: shell host triple $(CFG_HOST_TRIPLE))
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ifneq ($(wildcard $(NON_HOST_TRIPLES)),)
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CFG_INFO := $(info cfg: non host triples $(NON_HOST_TRIPLES))
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endif
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ifdef CFG_DISABLE_OPTIMIZE
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$(info cfg: disabling rustc optimization (CFG_DISABLE_OPTIMIZE))
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CFG_RUSTC_FLAGS :=
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else
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CFG_RUSTC_FLAGS := -O
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endif
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ifdef SAVE_TEMPS
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CFG_RUSTC_FLAGS += --save-temps
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endif
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ifdef ENFORCE_MUT_VARS
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CFG_RUSTC_FLAGS += --enforce-mut-vars
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endif
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ifdef TIME_PASSES
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CFG_RUSTC_FLAGS += --time-passes
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endif
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ifdef TIME_LLVM_PASSES
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CFG_RUSTC_FLAGS += --time-llvm-passes
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endif
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ifdef DEBUG
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CFG_RUSTC_FLAGS += -g
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endif
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# platform-specific auto-configuration
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include $(CFG_SRC_DIR)mk/platform.mk
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# Run the stage1/2 compilers under valgrind
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ifdef VALGRIND_COMPILE
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CFG_VALGRIND_COMPILE :=$(CFG_VALGRIND)
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else
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CFG_VALGRIND_COMPILE :=
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endif
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CFG_RUNTIME :=$(call CFG_LIB_NAME,rustrt)
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CFG_RUSTLLVM :=$(call CFG_LIB_NAME,rustllvm)
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CFG_CORELIB :=$(call CFG_LIB_NAME,core)
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CFG_STDLIB :=$(call CFG_LIB_NAME,std)
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CFG_LIBRUSTC :=$(call CFG_LIB_NAME,rustc)
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STDLIB_GLOB :=$(call CFG_LIB_GLOB,std)
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CORELIB_GLOB :=$(call CFG_LIB_GLOB,core)
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LIBRUSTC_GLOB :=$(call CFG_LIB_GLOB,rustc)
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STDLIB_DSYM_GLOB :=$(call CFG_LIB_DSYM_GLOB,std)
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CORELIB_DSYM_GLOB :=$(call CFG_LIB_DSYM_GLOB,core)
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LIBRUSTC_DSYM_GLOB :=$(call CFG_LIB_DSYM_GLOB,rustc)
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# version-string calculation
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CFG_GIT_DIR := $(CFG_SRC_DIR).git
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CFG_RELEASE = 0.2
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CFG_VERSION = $(CFG_RELEASE)
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ifneq ($(wildcard $(CFG_GIT)),)
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ifneq ($(wildcard $(CFG_GIT_DIR)),)
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CFG_VERSION += $(shell git --git-dir=$(CFG_GIT_DIR) log -1 \
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--pretty=format:'(%h %ci)')
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endif
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endif
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ifdef CFG_DISABLE_VALGRIND
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$(info cfg: disabling valgrind (CFG_DISABLE_VALGRIND))
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CFG_VALGRIND :=
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endif
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ifdef CFG_BAD_VALGRIND
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$(info cfg: disabling valgrind due to its unreliability on this platform)
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CFG_VALGRIND :=
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endif
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######################################################################
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# Target-and-rule "utility variables"
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######################################################################
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ifdef VERBOSE
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Q :=
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E =
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else
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Q := @
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E = echo $(1)
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endif
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S := $(CFG_SRC_DIR)
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X := $(CFG_EXE_SUFFIX)
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# Look in doc and src dirs.
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VPATH := $(S)doc $(S)src
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# "Source" files we generate in builddir along the way.
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GENERATED :=
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# Delete the built-in rules.
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.SUFFIXES:
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%:: %,v
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%:: RCS/%,v
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%:: RCS/%
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%:: s.%
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%:: SCCS/s.%
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######################################################################
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# Core library variables
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######################################################################
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CORELIB_CRATE := $(S)src/libcore/core.rc
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CORELIB_INPUTS := $(wildcard $(addprefix $(S)src/libcore/, \
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core.rc *.rs */*.rs))
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######################################################################
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# Standard library variables
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######################################################################
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STDLIB_CRATE := $(S)src/libstd/std.rc
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STDLIB_INPUTS := $(wildcard $(addprefix $(S)src/libstd/, \
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std.rc *.rs */*.rs))
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######################################################################
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# rustc crate variables
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######################################################################
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COMPILER_CRATE := $(S)src/rustc/rustc.rc
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COMPILER_INPUTS := $(filter-out $(S)src/rustc/driver/rustc.rs, \
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$(wildcard $(addprefix $(S)src/rustc/, \
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rustc.rc *.rs */*.rs */*/*.rs)))
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RUSTC_INPUTS := $(S)src/rustc/driver/rustc.rs
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######################################################################
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# LLVM macros
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######################################################################
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# FIXME: x86-ism
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LLVM_COMPONENTS=x86 ipo bitreader bitwriter linker asmparser
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define DEF_LLVM_VARS
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# The configure script defines these variables with the target triples
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# separated by Z. This defines new ones with the expected format.
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CFG_LLVM_BUILD_DIR_$(1):=$$(CFG_LLVM_BUILD_DIR_$(subst -,_,$(1)))
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CFG_LLVM_INST_DIR_$(1):=$$(CFG_LLVM_INST_DIR_$(subst -,_,$(1)))
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# Any rules that depend on LLVM should depend on LLVM_CONFIG
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LLVM_CONFIG_$(1):=$$(CFG_LLVM_INST_DIR_$(1))/bin/llvm-config$$(X)
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LLVM_MC_$(1):=$$(CFG_LLVM_INST_DIR_$(1))/bin/llvm-mc$$(X)
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LLVM_VERSION_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --version)
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LLVM_BINDIR_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --bindir)
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LLVM_INCDIR_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --includedir)
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LLVM_LIBDIR_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --libdir)
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LLVM_LIBS_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --libs $$(LLVM_COMPONENTS))
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LLVM_LDFLAGS_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --ldflags)
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# On FreeBSD, it may search wrong headers (that are for pre-installed LLVM),
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# so we replace -I with -iquote to ensure that it searches bundled LLVM first.
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LLVM_CXXFLAGS_$(1)=$$(subst -I, -iquote , $$(shell "$$(LLVM_CONFIG_$(1))" --cxxflags))
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LLVM_HOST_TRIPLE_$(1)=$$(shell "$$(LLVM_CONFIG_$(1))" --host-target)
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LLVM_AS_$(1)=$$(CFG_LLVM_INST_DIR_$(1))/bin/llvm-as$$(X)
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LLC_$(1)=$$(CFG_LLVM_INST_DIR_$(1))/bin/llc$$(X)
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endef
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$(foreach target,$(CFG_TARGET_TRIPLES), \
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$(eval $(call DEF_LLVM_VARS,$(target))))
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######################################################################
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# Exports for sub-utilities
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######################################################################
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# Note that any variable that re-configure should pick up needs to be
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# exported
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export CFG_SRC_DIR
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export CFG_BUILD_DIR
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export CFG_VERSION
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export CFG_HOST_TRIPLE
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export CFG_LLVM_ROOT
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export CFG_ENABLE_MINGW_CROSS
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export CFG_PREFIX
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export CFG_LIBDIR
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######################################################################
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# Subprograms
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######################################################################
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######################################################################
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# Per-stage targets and runner
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######################################################################
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define SREQ
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# $(1) is the stage number
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# $(2) is the target triple
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# $(3) is the host triple
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# Destinations of artifacts for the host compiler
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HROOT$(1)_H_$(3) = $(3)/stage$(1)
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HBIN$(1)_H_$(3) = $$(HROOT$(1)_H_$(3))/bin
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HLIB$(1)_H_$(3) = $$(HROOT$(1)_H_$(3))/$$(CFG_LIBDIR)
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# Destinations of artifacts for target architectures
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TROOT$(1)_T_$(2)_H_$(3) = $$(HLIB$(1)_H_$(3))/rustc/$(2)
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TBIN$(1)_T_$(2)_H_$(3) = $$(TROOT$(1)_T_$(2)_H_$(3))/bin
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TLIB$(1)_T_$(2)_H_$(3) = $$(TROOT$(1)_T_$(2)_H_$(3))/$$(CFG_LIBDIR)
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# The name of the core and standard libraries used by rustc
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ifdef CFG_DISABLE_SHAREDSTD
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HCORELIB_DEFAULT$(1)_H_$(3) = \
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$$(HLIB$(1)_H_$(3))/libcore.rlib
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TCORELIB_DEFAULT$(1)_T_$(2)_H_$(3) = \
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$$(TLIB$(1)_T_$(2)_H_$(3))/libcore.rlib
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HSTDLIB_DEFAULT$(1)_H_$(3) = \
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$$(HLIB$(1)_H_$(3))/libstd.rlib
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TSTDLIB_DEFAULT$(1)_T_$(2)_H_$(3) = \
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$$(TLIB$(1)_T_$(2)_H_$(3))/libstd.rlib
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HLIBRUSTC_DEFAULT$(1)_H_$(3) = \
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$$(HLIB$(1)_H_$(3))/librustc.rlib
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TLIBRUSTC_DEFAULT$(1)_T_$(2)_H_$(3) = \
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$$(TLIB$(1)_T_$(2)_H_$(3))/librustc.rlib
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else
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HCORELIB_DEFAULT$(1)_H_$(3) = \
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$$(HLIB$(1)_H_$(3))/$(CFG_CORELIB)
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TCORELIB_DEFAULT$(1)_T_$(2)_H_$(3) = \
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$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_CORELIB)
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HSTDLIB_DEFAULT$(1)_H_$(3) = \
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$$(HLIB$(1)_H_$(3))/$(CFG_STDLIB)
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TSTDLIB_DEFAULT$(1)_T_$(2)_H_$(3) = \
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$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_STDLIB)
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HLIBRUSTC_DEFAULT$(1)_H_$(3) = \
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$$(HLIB$(1)_H_$(3))/$(CFG_LIBRUSTC)
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TLIBRUSTC_DEFAULT$(1)_T_$(2)_H_$(3) = \
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$$(TLIB$(1)_T_$(2)_H_$(3))/$(CFG_LIBRUSTC)
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endif
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# Preqrequisites for using the stageN compiler
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HSREQ$(1)_H_$(3) = \
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$$(HBIN$(1)_H_$(3))/rustc$$(X) \
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$$(HLIB$(1)_H_$(3))/$$(CFG_RUNTIME) \
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$$(HLIB$(1)_H_$(3))/$$(CFG_RUSTLLVM) \
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$$(HCORELIB_DEFAULT$(1)_H_$(3)) \
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$$(HSTDLIB_DEFAULT$(1)_H_$(3)) \
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$$(HLIBRUSTC_DEFAULT$(1)_H_$(3)) \
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$$(MKFILE_DEPS)
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# Prerequisites for using the stageN compiler to build target artifacts
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TSREQ$(1)_T_$(2)_H_$(3) = \
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$$(HSREQ$(1)_H_$(3)) \
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$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_RUNTIME) \
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$$(TLIB$(1)_T_$(2)_H_$(3))/libmorestack.a
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# Prerequisites for complete stageN targets
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SREQ$(1)_T_$(2)_H_$(3) = \
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$$(TSREQ$(1)_T_$(2)_H_$(3)) \
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$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_CORELIB) \
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$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_STDLIB) \
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$$(TLIB$(1)_T_$(2)_H_$(3))/$$(CFG_LIBRUSTC)
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ifeq ($(1),0)
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# Don't run the the stage0 compiler under valgrind - that ship has sailed
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CFG_VALGRIND_COMPILE$(1) =
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else
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CFG_VALGRIND_COMPILE$(1) = $$(CFG_VALGRIND_COMPILE)
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endif
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STAGE$(1)_T_$(2)_H_$(3) := \
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$$(Q)$$(call CFG_RUN_TARG,$(1), \
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$$(CFG_VALGRIND_COMPILE$(1)) \
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$$(HBIN$(1)_H_$(3))/rustc$$(X) \
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$$(CFG_RUSTC_FLAGS) --target=$(2))
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PERF_STAGE$(1)_T_$(2)_H_$(3) := \
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$$(Q)$$(call CFG_RUN_TARG,$(1), \
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$$(CFG_PERF_TOOL) \
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$$(HBIN$(1)_H_$(3))/rustc$$(X) \
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$$(CFG_RUSTC_FLAGS) --target=$(2))
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endef
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$(foreach build,$(CFG_TARGET_TRIPLES), \
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$(eval $(foreach target,$(CFG_TARGET_TRIPLES), \
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$(eval $(foreach stage,$(STAGES), \
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$(eval $(call SREQ,$(stage),$(target),$(build))))))))
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######################################################################
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# rustc-H-targets
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#
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# Builds a functional Rustc for the given host.
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######################################################################
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define DEF_RUSTC_STAGE_TARGET
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# $(1) == architecture
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# $(2) == stage
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rustc-stage$(2)-H-$(1): \
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$$(foreach target,$$(CFG_TARGET_TRIPLES), \
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$$(SREQ$(2)_T_$$(target)_H_$(1)))
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endef
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$(foreach host,$(CFG_TARGET_TRIPLES), \
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$(eval $(foreach stage,1 2 3, \
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$(eval $(call DEF_RUSTC_STAGE_TARGET,$(host),$(stage))))))
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rustc-stage1: rustc-stage1-H-$(CFG_HOST_TRIPLE)
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rustc-stage2: rustc-stage2-H-$(CFG_HOST_TRIPLE)
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rustc-stage3: rustc-stage3-H-$(CFG_HOST_TRIPLE)
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define DEF_RUSTC_TARGET
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# $(1) == architecture
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rustc-H-$(1): rustc-stage2-H-$(1)
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endef
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$(foreach host,$(CFG_TARGET_TRIPLES), \
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$(eval $(call DEF_RUSTC_TARGET,$(host))))
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rustc-stage1: rustc-stage1-H-$(CFG_HOST_TRIPLE)
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rustc-stage2: rustc-stage2-H-$(CFG_HOST_TRIPLE)
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rustc-stage3: rustc-stage3-H-$(CFG_HOST_TRIPLE)
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rustc: rustc-H-$(CFG_HOST_TRIPLE)
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rustc-H-all: $(foreach host,$(CFG_TARGET_TRIPLES),rustc-H-$(host))
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######################################################################
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# Entrypoint rule
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######################################################################
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.DEFAULT_GOAL := all
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ifneq ($(CFG_IN_TRANSITION),)
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CFG_INFO := $(info cfg:)
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CFG_INFO := $(info cfg: *** compiler is in snapshot transition ***)
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CFG_INFO := $(info cfg: *** stage2 and later will not be built ***)
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CFG_INFO := $(info cfg:)
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all: $(SREQ1$(CFG_HOST_TRIPLE)) $(GENERATED) docs
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else
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TSREQS := \
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$(foreach target,$(CFG_TARGET_TRIPLES), \
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$(SREQ3_T_$(target)_H_$(CFG_HOST_TRIPLE)))
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FUZZ := $(HBIN3_H_$(CFG_HOST_TRIPLE))/fuzzer$(X)
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CARGO := $(HBIN3_H_$(CFG_HOST_TRIPLE))/cargo$(X)
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RUSTDOC := $(HBIN3_H_$(CFG_HOST_TRIPLE))/rustdoc$(X)
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all: rustc $(GENERATED) docs $(FUZZ) $(CARGO) $(RUSTDOC)
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endif
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######################################################################
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# Re-configuration
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######################################################################
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ifndef CFG_DISABLE_MANAGE_SUBMODULES
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# This is a pretty expensive operation but I don't see any way to avoid it
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NEED_GIT_RECONFIG=$(shell cd "$(CFG_SRC_DIR)" && "$(CFG_GIT)" submodule status | grep -c '^\(+\|-\)')
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else
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NEED_GIT_RECONFIG=0
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endif
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ifeq ($(NEED_GIT_RECONFIG),0)
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else
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# If the submodules have changed then always execute config.mk
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.PHONY: config.stamp
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endif
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Makefile config.mk: config.stamp
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config.stamp: $(S)configure $(S)Makefile.in $(S)src/snapshots.txt
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@$(call E, cfg: reconfiguring)
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$(Q)$(S)configure $(CFG_CONFIGURE_ARGS)
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$(Q)touch $@
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######################################################################
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# Primary-target makefiles
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######################################################################
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include $(CFG_SRC_DIR)mk/target.mk
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include $(CFG_SRC_DIR)mk/host.mk
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include $(CFG_SRC_DIR)mk/stage0.mk
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include $(CFG_SRC_DIR)mk/rt.mk
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include $(CFG_SRC_DIR)mk/rustllvm.mk
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include $(CFG_SRC_DIR)mk/autodep.mk
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include $(CFG_SRC_DIR)mk/tools.mk
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include $(CFG_SRC_DIR)mk/docs.mk
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include $(CFG_SRC_DIR)mk/llvm.mk
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######################################################################
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# Secondary makefiles, conditionalized for speed
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######################################################################
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ifneq ($(strip $(findstring dist,$(MAKECMDGOALS)) \
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$(findstring check,$(MAKECMDGOALS)) \
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$(findstring test,$(MAKECMDGOALS)) \
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$(findstring tidy,$(MAKECMDGOALS)) \
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$(findstring clean,$(MAKECMDGOALS))),)
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CFG_INFO := $(info cfg: including dist rules)
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include $(CFG_SRC_DIR)mk/dist.mk
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endif
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ifneq ($(strip $(findstring snap,$(MAKECMDGOALS)) \
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$(findstring clean,$(MAKECMDGOALS))),)
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CFG_INFO := $(info cfg: including snap rules)
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include $(CFG_SRC_DIR)mk/snap.mk
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endif
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ifneq ($(findstring reformat,$(MAKECMDGOALS)),)
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CFG_INFO := $(info cfg: including reformat rules)
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include $(CFG_SRC_DIR)mk/pp.mk
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endif
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ifneq ($(strip $(findstring check,$(MAKECMDGOALS)) \
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$(findstring test,$(MAKECMDGOALS)) \
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$(findstring perf,$(MAKECMDGOALS)) \
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$(findstring tidy,$(MAKECMDGOALS))),)
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CFG_INFO := $(info cfg: including test rules)
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include $(CFG_SRC_DIR)mk/tests.mk
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endif
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ifneq ($(findstring perf,$(MAKECMDGOALS)),)
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CFG_INFO := $(info cfg: including perf rules)
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include $(CFG_SRC_DIR)mk/perf.mk
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endif
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ifneq ($(findstring clean,$(MAKECMDGOALS)),)
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CFG_INFO := $(info cfg: including clean rules)
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include $(CFG_SRC_DIR)mk/clean.mk
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endif
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ifneq ($(findstring install,$(MAKECMDGOALS)),)
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ifdef DESTDIR
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CFG_INFO := $(info cfg: setting CFG_PREFIX via DESTDIR, $(DESTDIR))
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CFG_PREFIX:=$(DESTDIR)
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export CFG_PREFIX
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endif
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CFG_INFO := $(info cfg: including install rules)
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include $(CFG_SRC_DIR)mk/install.mk
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endif
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ifneq ($(strip $(findstring TAGS.emacs,$(MAKECMDGOALS)) \
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$(findstring TAGS.vi,$(MAKECMDGOALS))),)
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CFG_INFO := $(info cfg: including ctags rules)
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include $(CFG_SRC_DIR)mk/ctags.mk
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endif
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