forked from OSchip/llvm-project
217 lines
6.9 KiB
Makefile
217 lines
6.9 KiB
Makefile
#----------------------------------------------------------------------
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# Clients fill in the source files to build
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#----------------------------------------------------------------------
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# C_SOURCES := main.c
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# CXX_SOURCES :=
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# OBJC_SOURCES :=
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# OBJCXX_SOURCES :=
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# DYLIB_C_SOURCES :=
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# Uncomment line below for debugging shell commands
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# SHELL = /bin/sh -x
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#----------------------------------------------------------------------
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# If ARCH is not defined, default to x86_64.
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# If OS is not defined, use 'uname -s' to determine the OS name.
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#----------------------------------------------------------------------
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ifeq "$(ARCH)" ""
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ARCH = x86_64
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endif
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ifeq "$(OS)" ""
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OS = $(shell uname -s)
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endif
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#----------------------------------------------------------------------
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# CC defaults to gcc.
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# See also these functions:
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# o cxx_compiler
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# o cxx_linker
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#----------------------------------------------------------------------
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CC ?= gcc
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ifeq "$(CC)" "cc"
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CC = gcc
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endif
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#----------------------------------------------------------------------
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# Change any build/tool options needed
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#----------------------------------------------------------------------
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CFLAGS ?= -gdwarf-2 -O0
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CXXFLAGS +=$(CFLAGS)
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LD = $(CC)
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LDFLAGS ?= $(CFLAGS)
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OBJECTS =
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EXE ?= a.out
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ifeq "$(OS)" "Darwin"
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CFLAGS += -arch $(ARCH)
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DS := /usr/bin/dsymutil
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DSFLAGS =
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DSYM = $(EXE).dSYM
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endif
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ifneq "$(DYLIB_NAME)" ""
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ifeq "$(OS)" "Darwin"
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DYLIB_FILENAME = lib$(DYLIB_NAME).dylib
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else
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DYLIB_FILENAME = lib$(DYLIB_NAME).so
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endif
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endif
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# Function that returns the counterpart C++ compiler, given $(CC) as arg.
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cxx_compiler = $(if $(findstring clang,$(1)), $(subst clang,clang++,$(1)), $(if $(findstring llvm-gcc,$(1)), $(subst llvm-gcc,llvm-g++,$(1)), $(subst gcc,g++,$(1))))
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# Function that returns the C++ linker, given $(CC) as arg.
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cxx_linker = $(if $(findstring clang,$(1)), $(subst clang,g++,$(1)), $(if $(findstring llvm-gcc,$(1)), $(subst llvm-gcc,g++,$(1)), $(subst gcc,g++,$(1))))
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#----------------------------------------------------------------------
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# dylib settings
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#----------------------------------------------------------------------
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ifneq "$(strip $(DYLIB_C_SOURCES))" ""
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DYLIB_OBJECTS +=$(strip $(DYLIB_C_SOURCES:.c=.o))
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endif
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#----------------------------------------------------------------------
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# Check if we have any C source files
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#----------------------------------------------------------------------
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ifneq "$(strip $(C_SOURCES))" ""
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OBJECTS +=$(strip $(C_SOURCES:.c=.o))
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endif
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#----------------------------------------------------------------------
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# Check if we have any C++ source files
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#----------------------------------------------------------------------
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ifneq "$(strip $(CXX_SOURCES))" ""
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OBJECTS +=$(strip $(CXX_SOURCES:.cpp=.o))
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CXX = $(call cxx_compiler,$(CC))
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LD = $(call cxx_linker,$(CC))
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endif
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#----------------------------------------------------------------------
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# Check if we have any ObjC source files
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#----------------------------------------------------------------------
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ifneq "$(strip $(OBJC_SOURCES))" ""
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OBJECTS +=$(strip $(OBJC_SOURCES:.m=.o))
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LDFLAGS +=-lobjc
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endif
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#----------------------------------------------------------------------
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# Check if we have any ObjC++ source files
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#----------------------------------------------------------------------
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ifneq "$(strip $(OBJCXX_SOURCES))" ""
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OBJECTS +=$(strip $(OBJCXX_SOURCES:.mm=.o))
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CXX = $(call cxx_compiler,$(CC))
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LD = $(call cxx_linker,$(CC))
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ifeq $(findstring lobjc,$(LDFLAGS)) ""
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LDFLAGS +=-lobjc
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endif
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endif
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#----------------------------------------------------------------------
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# Make the dSYM file from the executable if $(MAKE_DSYM) != "NO"
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#----------------------------------------------------------------------
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ifeq "$(OS)" "Darwin"
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ifneq "$(MAKE_DSYM)" "NO"
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$(DSYM) : $(EXE)
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$(DS) $(DSFLAGS) -o "$(DSYM)" "$(EXE)"
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endif
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endif
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#----------------------------------------------------------------------
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# Compile the executable from all the objects.
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#----------------------------------------------------------------------
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ifeq "$(DYLIB_NAME)" ""
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$(EXE) : $(OBJECTS)
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$(LD) $(LDFLAGS) $(OBJECTS) -o "$(EXE)"
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else
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$(EXE) : $(OBJECTS) $(DYLIB_FILENAME)
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$(LD) $(LDFLAGS) $(OBJECTS) -L. -l$(DYLIB_NAME) -o "$(EXE)"
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endif
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#----------------------------------------------------------------------
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# Make the dylib
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#----------------------------------------------------------------------
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$(DYLIB_FILENAME) : $(DYLIB_OBJECTS)
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ifeq "$(OS)" "Darwin"
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$(LD) $(LDFLAGS) $(DYLIB_OBJECTS) -install_name "@executable_path/$(DYLIB_FILENAME)" -dynamiclib -o "$(DYLIB_FILENAME)"
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else
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$(LD) $(LDFLAGS) $(DYLIB_OBJECTS) -shared -o "$(DYLIB_FILENAME)"
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endif
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#----------------------------------------------------------------------
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# Automatic variables based on items already entered. Below we create
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# an objects lists from the list of sources by replacing all entries
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# that end with .c with .o, and we also create a list of prerequisite
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# files by replacing all .c files with .d.
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#----------------------------------------------------------------------
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PREREQS := $(OBJECTS:.o=.d)
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ifneq "$(DYLIB_NAME)" ""
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DYLIB_PREREQS := $(DYLIB_OBJECTS:.o=.d)
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endif
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#----------------------------------------------------------------------
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# Rule for Generating Prerequisites Automatically using .d files and
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# the compiler -MM option. The -M option will list all system headers,
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# and the -MM option will list all non-system dependencies.
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#----------------------------------------------------------------------
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%.d: %.c
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@set -e; rm -f $@; \
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$(CC) -M $(CPPFLAGS) $< > $@.$$$$; \
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sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
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rm -f $@.$$$$
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%.d: %.cpp
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@set -e; rm -f $@; \
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$(CC) -M $(CPPFLAGS) $< > $@.$$$$; \
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sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
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rm -f $@.$$$$
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%.d: %.m
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@set -e; rm -f $@; \
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$(CC) -M $(CPPFLAGS) $< > $@.$$$$; \
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sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
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rm -f $@.$$$$
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%.d: %.mm
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@set -e; rm -f $@; \
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$(CC) -M $(CPPFLAGS) $< > $@.$$$$; \
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sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.$$$$ > $@; \
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rm -f $@.$$$$
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#----------------------------------------------------------------------
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# Include all of the makefiles for each source file so we don't have
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# to manually track all of the prerequisites for each source file.
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#----------------------------------------------------------------------
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sinclude $(PREREQS)
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ifneq "$(DYLIB_NAME)" ""
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sinclude $(DYLIB_PREREQS)
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endif
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.PHONY: clean
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dsym: $(DSYM)
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all: $(EXE) $(DSYM)
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clean::
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ifeq "$(DYLIB_NAME)" ""
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rm -rf "$(EXE)" "$(DSYM)" $(OBJECTS) $(PREREQS)
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else
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rm -rf "$(EXE)" "$(DSYM)" $(OBJECTS) $(PREREQS) $(DYLIB_OBJECTS) $(DYLIB_FILENAME) $(DYLIB_FILENAME).dSYM
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endif
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#----------------------------------------------------------------------
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# From http://blog.melski.net/tag/debugging-makefiles/
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#
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# Usage: make print-CC print-CXX print-LD
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#----------------------------------------------------------------------
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print-%:
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@echo '$*=$($*)'
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@echo ' origin = $(origin $*)'
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@echo ' flavor = $(flavor $*)'
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@echo ' value = $(value $*)'
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### Local Variables: ###
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### mode:makefile ###
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### End: ###
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