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Rust relies on atomic builtins, which are not implemented in libgcc for ARM. One is implemented in rust, which is sufficient to get the current rust test to run. Issue #1899
103 lines
2.8 KiB
Makefile
103 lines
2.8 KiB
Makefile
#
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# Generic rules to build file types from other file types and other
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# common functionaly that is needed to build library or program targets.
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#
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#
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# Collect object files and avoid duplicates (by using 'sort')
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#
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SRC_O += $(addprefix binary_,$(addsuffix .o,$(notdir $(SRC_BIN))))
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SRC = $(sort $(SRC_C) $(SRC_CC) $(SRC_ADA) $(SRC_RS) $(SRC_S) $(SRC_O))
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OBJECTS = $(addsuffix .o,$(basename $(SRC)))
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#
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# Create sub directories for objects files corresponding to the sub directories
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# of their respective source files
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#
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SUB_DIRS = $(sort $(dir $(OBJECTS)))
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ifneq ($(SUB_DIRS),./)
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$(OBJECTS): $(filter-out $(wildcard $(SUB_DIRS)), $(SUB_DIRS))
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endif
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.PHONY: $(SUB_DIRS)
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$(SUB_DIRS):
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$(VERBOSE)mkdir -p $@
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#
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# Make sure that we rebuild object files and host tools after Makefile changes
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#
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$(wildcard $(OBJECTS)) $(HOST_TOOLS): $(filter-out $(LIB_PROGRESS_LOG),$(MAKEFILE_LIST))
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INCLUDES := $(addprefix -I,$(wildcard $(ALL_INC_DIR)))
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#
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# If one of the 3rd-party ports used by the target changed, we need to rebuild
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# all object files and host tools because they may include sources from the
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# 3rd-party port.
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#
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# The 'PORT_HASH_FILES' variable is populated as side effect of calling the
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# 'select_from_ports' function.
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#
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$(OBJECTS) $(HOST_TOOLS): $(PORT_HASH_FILES)
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#
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# Include dependency files for the corresponding object files except
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# when cleaning
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#
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ifneq ($(filter-out $(MAKECMDGOALS),clean),)
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-include $(OBJECTS:.o=.d)
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endif
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%.o: %.c
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$(MSG_COMP)$@
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$(VERBOSE)$(CC) $(CC_DEF) $(CC_C_OPT) $(INCLUDES) -c $< -o $@
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%.o: %.cc
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$(MSG_COMP)$@
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$(VERBOSE)$(CXX) $(CXX_DEF) $(CC_CXX_OPT) $(INCLUDES) -c $< -o $@
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%.o: %.cpp
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$(MSG_COMP)$@
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$(VERBOSE)$(CXX) $(CXX_DEF) $(CC_CXX_OPT) $(INCLUDES) -c $< -o $@
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%.o: %.s
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$(MSG_ASSEM)$@
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$(VERBOSE)$(CC) $(CC_DEF) $(CC_C_OPT) $(INCLUDES) -c $< -o $@
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#
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# Compiling Ada source codes
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#
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%.o: %.adb
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$(MSG_COMP)$@
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$(VERBOSE)gnatmake -q -c $(CC_ADA_OPT) $(INCLUDES) $<
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#
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# Compiling Rust sources
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#
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%.o: %.rs
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$(MSG_COMP)$@
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$(VERBOSE)rustc $(CC_RUSTC_OPT) -o $@ $<
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#
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# Assembler files that must be preprocessed are fed to the C compiler.
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#
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%.o: %.S
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$(MSG_COMP)$@
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$(VERBOSE)$(CC) $(CC_DEF) $(CC_OPT) -D__ASSEMBLY__ $(INCLUDES) -c $< -o $@
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#
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# Link binary data
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#
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# We transform binary data into an object file by using the 'incbin' directive
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# of the GNU assembler. This enables us to choose a any label for the binary
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# data (in contrast to 'ld -r -oformat default -b binary', which generates the
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# label from the input path name) and to align the binary data as required on
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# some architectures (e.g., ARM).
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#
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symbol_name = _binary_$(subst -,_,$(subst .,_,$(subst binary_,,$(subst .o,,$(notdir $@)))))
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binary_%.o: %
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$(MSG_CONVERT)$@
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$(VERBOSE)echo ".global $(symbol_name)_start, $(symbol_name)_end; .data; .align 4; $(symbol_name)_start:; .incbin \"$<\"; $(symbol_name)_end:" |\
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$(AS) $(AS_OPT) -f -o $@ -
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