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1866520d6c
The added hook 'OBJ_POSTPROC_SRC' gives us a way to post-process object files for generating supplemental code. By using this hook, the initcall_table.c generated by import-lx_emul_common.inc gets reliably executed after all object files are built. Fixes #5159
169 lines
5.4 KiB
Makefile
169 lines
5.4 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) $(SRC_GO))
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OBJECTS = $(addsuffix .o,$(basename $(SRC)))
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#
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# Hook for incorporating source code generated by post-processing object
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# files. The source code must be generated after building 'OBJECTS'. But
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# the object file(s) resulting from the generated code must be linked.
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# Hence, 'OBJECTS' is expanded after the dependency definition.
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#
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ifneq ($(OBJ_POSTPROC_SRC),)
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$(OBJ_POSTPROC_SRC) : $(OBJECTS)
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OBJECTS += $(addsuffix .o,$(basename $(OBJ_POSTPROC_SRC)))
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endif
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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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# The 'GLOBAL_DEPS' variable contains a list of files with side effects on the
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# build result that not captured by the regular .d-file mechanism. Changes of
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# such files - in particular build-description files - trigger a whole rebuild.
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#
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GLOBAL_DEPS += $(filter-out $(LIB_PROGRESS_LOG),$(MAKEFILE_LIST))
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$(wildcard $(OBJECTS)) $(HOST_TOOLS): $(GLOBAL_DEPS)
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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 $@
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#
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# Compiling Go sources
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#
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%.o: %.go
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$(MSG_COMP)$@
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$(VERBOSE)$(GOLANG) $(CUSTOM_GO_FLAGS) -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 -gnatwG
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CUSTOM_ADA_INCLUDE ?= -I- $(INCLUDES)
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#
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# The files generated by the binder would not pass our GNAT style checks
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# thus we handle them separately and disable style checks via compiler option
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# '-gnatyN'
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#
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b~%.ali b~%.o: b~%.adb
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$(MSG_COMP)$@
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$(VERBOSE)$(CUSTOM_ADA_CC) $(CUSTOM_ADA_FLAGS) $(CUSTOM_ADA_OPT) -gnatyN $(CUSTOM_ADA_INCLUDE) -c $<
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$(VERBOSE)$(ALI2DEP) $(dir $<) $(ALL_INC_DIR) b~$*.ali
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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) $*.ali
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#
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# Assembler files that must be preprocessed are fed to the C compiler.
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#
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%.o: %.S
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$(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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# 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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