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5ccae43552
The minimal-footprint Ada runtime for implementing library-like functionality in SPARK is now called "spark" runtime. The full Ada runtime for entire components written in Ada and using the libc as glue to the underlying system will move to the world repository as "ada" runtime. Issue #3144
187 lines
6.4 KiB
Makefile
187 lines
6.4 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_ADB) $(SRC_ADS) $(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 $@
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ifeq ($(COVERAGE),yes)
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$(VERBOSE)mkdir -p $(INSTALL_DIR)/gcov_data/$(TARGET)/$(dir $@)
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$(VERBOSE)ln -sf $(CURDIR)/$(@:.o=.gcno) $(INSTALL_DIR)/gcov_data/$(TARGET)/$(@:.o=.gcno)
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endif
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%.o: %.cpp
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$(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 $@
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#
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# Compiling Ada source codes
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#
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# The mandatory runtime directories 'adainclude' and 'adalib' are expected in
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# the program directory.
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#
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#
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# We need to override these to build the ada runtime
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#
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CUSTOM_ADA_FLAGS ?= --RTS=$(ADA_RTS)
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CUSTOM_ADA_OPT ?= $(CC_ADA_OPT) -gnatef
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CUSTOM_ADA_INCLUDE ?= -I- $(INCLUDES)
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%.ali %.o: %.adb
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$(MSG_COMP)$@
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$(VERBOSE)$(CUSTOM_ADA_CC) $(CUSTOM_ADA_FLAGS) $(CUSTOM_ADA_OPT) $(CUSTOM_ADA_INCLUDE) -c $<
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$(VERBOSE)$(ALI2DEP) $(dir $<) $(ALL_INC_DIR) $*.ali
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%.ali %.o: %.ads
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$(MSG_COMP)$@
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$(VERBOSE)$(CUSTOM_ADA_CC) $(CUSTOM_ADA_FLAGS) $(CUSTOM_ADA_OPT) $(CUSTOM_ADA_INCLUDE) -c $<
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$(VERBOSE)$(ALI2DEP) $(dir $<) $(ALL_INC_DIR) $*.ali
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#
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# Compiling Rust sources
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#
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%.rlib: %.rs
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$(MSG_COMP)$@
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$(VERBOSE)rustc $(CC_RUSTC_OPT) --crate-type rlib -o $@ $<
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%.o: %.rlib
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$(MSG_CONVERT)$@
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$(VERBOSE)ar p $< $*.0.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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#
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# Generate assembler file from symbol list
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#
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# For undefined symbols (type U), we create a hard dependency by referencing
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# the symbols from the assembly file. The reference is created in the form of
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# a '.long' value with the address of the symbol. On x86_64, this is not
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# possible for PIC code. Hence, we reference the symbol via a PIC-compatible
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# movq instruction instead.
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#
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# If we declared the symbol as '.global' without using it, the undefined symbol
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# gets discarded at link time unless it is directly referenced by the target.
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# This is a problem in situations where the undefined symbol is resolved by an
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# archive rather than the target. I.e., when linking posix.lib.a (which
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# provides 'Libc::Component::construct'), the 'construct' function is merely
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# referenced by the libc.lib.so's 'Component::construct' function. But this
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# reference apparently does not suffice to keep the posix.lib.a's symbol. By
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# adding a hard dependency, we force the linker to resolve the symbol and don't
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# drop posix.lib.a.
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#
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ASM_SYM_DEPENDENCY := .long \1
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ifeq ($(filter-out $(SPECS),x86_64),)
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ASM_SYM_DEPENDENCY := movq \1@GOTPCREL(%rip), %rax
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endif
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%.symbols.s: %.symbols
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$(MSG_CONVERT)$@
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$(VERBOSE)\
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sed -e "s/^\(\w\+\) D \(\w\+\)\$$/.data; .global \1; .type \1,%object; .size \1,\2; \1:/p" \
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-e "s/^\(\w\+\) V/.data; .weak \1; .type \1,%object; \1:/p" \
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-e "s/^\(\w\+\) T/.text; .global \1; .type \1,%function; \1:/p" \
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-e "s/^\(\w\+\) R \(\w\+\)\$$/.section .rodata; .global \1; .type \1,%object; .size \1,\2; \1:/p" \
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-e "s/^\(\w\+\) W/.text; .weak \1; .type \1,%function; \1:/p" \
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-e "s/^\(\w\+\) B \(\w\+\)\$$/.bss; .global \1; .type \1,%object; .size \1,\2; \1:/p" \
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-e "s/^\(\w\+\) U/.text; .global \1; $(ASM_SYM_DEPENDENCY)/p" \
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$< > $@
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#
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# Create local symbol links for the used shared libraries
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#
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# Depending on whether an ABI stub for a given shared library exists, we link
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# the target against the ABI stub or the real shared library.
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#
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# We check if the symbolic links are up-to-date by filtering all links that
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# already match the current shared library targets from the list. If the list
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# is not empty we flag 'SHARED_LIBS' as phony to make sure that the symbolic
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# links are recreated. E.g., if a symbol list is added for library, the next
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# time a user of the library is linked, the ABI stub should be used instead of
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# the library.
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#
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select_so = $(firstword $(wildcard $(LIB_CACHE_DIR)/$(1:.lib.so=)/$(1:.lib.so=).abi.so \
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$(LIB_CACHE_DIR)/$(1:.lib.so=)/$(1:.lib.so=).lib.so))
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ifneq ($(filter-out $(foreach s,$(SHARED_LIBS),$(realpath $s)), \
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$(foreach s,$(SHARED_LIBS),$(call select_so,$s))),)
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.PHONY: $(SHARED_LIBS)
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endif
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$(SHARED_LIBS):
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$(VERBOSE)ln -sf $(call select_so,$@) $@
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