# AVR common makefile scripts and rules. ############################################################################## # Processing options coming from the upper Makefile. # # Compiler options OPT := $(USE_OPT) COPT := $(USE_COPT) CPPOPT := $(USE_CPPOPT) # Output directory and files ifeq ($(BUILDDIR),) BUILDDIR = build endif ifeq ($(BUILDDIR),.) BUILDDIR = build endif OUTFILES := $(BUILDDIR)/$(PROJECT).elf \ $(BUILDDIR)/$(PROJECT).hex \ $(BUILDDIR)/$(PROJECT).bin \ $(BUILDDIR)/$(PROJECT).eep \ $(BUILDDIR)/$(PROJECT).lss \ $(BUILDDIR)/$(PROJECT).sym ifdef SREC OUTFILES += $(BUILDDIR)/$(PROJECT).srec endif # Source files groups and paths ASRC := $(CSRC) $(CPPSRC) SRCPATHS := $(sort $(dir $(ASMXSRC)) $(dir $(ASMSRC)) $(dir $(ASRC))) # Various directories OBJDIR := $(BUILDDIR)/obj LSTDIR := $(BUILDDIR)/lst # Object files groups ACOBJS := $(addprefix $(OBJDIR)/, $(notdir $(CSRC:.c=.o))) ACPPOBJS := $(addprefix $(OBJDIR)/, $(notdir $(CPPSRC:.cpp=.o))) ASMOBJS := $(addprefix $(OBJDIR)/, $(notdir $(ASMSRC:.s=.o))) ASMXOBJS := $(addprefix $(OBJDIR)/, $(notdir $(ASMXSRC:.S=.o))) OBJS := $(ASMXOBJS) $(ASMOBJS) $(ACOBJS) $(ACPPOBJS) # Paths IINCDIR := $(patsubst %, -I%,$(INCDIR) $(DINCDIR) $(UINCDIR)) LLIBDIR := $(patsubst %, -L%,$(DLIBDIR) $(ULIBDIR)) LLIBDIR += -L$(dir $(LDSCRIPT)) # Macros DEFS := $(DDEFS) $(UDEFS) ADEFS := $(DADEFS) $(UADEFS) # Libs LIBS := $(DLIBS) $(ULIBS) # Compiler flag to set the C Standard level. # c89 = "ANSI" C # gnu89 = c89 plus GCC extensions # c99 = ISO C99 standard (not yet fully implemented) # gnu99 = c99 plus GCC extensions CSTANDARD = -std=gnu11 # Place -D or -U options here for C sources CDEFS = -DF_CPU=$(F_CPU)UL # Place -D or -U options here for ASM sources ADEFS = -DF_CPU=$(F_CPU) # Place -D or -U options here for C++ sources CPPDEFS = -DF_CPU=$(F_CPU)UL # Paths where to search for sources VPATH = $(SRCPATHS) # Various settings for C flags. MCFLAGS := -mmcu=$(MCU) CFLAGS = $(MCFLAGS) -I. -gdwarf-2 $(CDEFS) $(OPT) -funsigned-char CFLAGS += -funsigned-bitfields -fpack-struct -fshort-enums $(CWARN) CFLAGS += -Wa,-adhlns=$(LSTDIR)/$(notdir $(<:.c=.lst)) $(DEFS) CFLAGS += -std=gnu11 -mrelax -fdata-sections -ffunction-sections CFLAGS += -Wundef -MMD -MP #-MF # Various settings for CPP flags. CPPFLAGS = $(MCFLAGS) -I. -gdwarf-2 $(CDEFS) $(OPT) -funsigned-char CPFLAGS += -funsigned-bitfields -fpack-struct -fshort-enums $(CWARN) CPFLAGS += -Wa,-adhlns=$(LSTDIR)/$(notdir $(<:.c=.lst)) $(DEFS) CPFLAGS += -std=gnu++11 -mrelax -fdata-sections -ffunction-sections CPFLAGS += -Wundef -MMD -MP #-MF #---------------- Assembler Options ---------------- # -Wa,...: tell GCC to pass this to the assembler. # -adhlns: create listing # -gstabs: have the assembler create line number information; note that # for use in COFF files, additional information about filenames # and function names needs to be present in the assembler source # files -- see avr-libc docs [FIXME: not yet described there] # -listing-cont-lines: Sets the maximum number of continuation lines of hex # dump that will be displayed for a given single line of source input. ASFLAGS = $(ADEFS) -Wa,-adhlns=$(<:%.S=$(OBJDIR)/%.lst),-gstabs, \ --listing-cont-lines=100 #---------------- Library Options ---------------- # Minimalistic printf version PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min # Floating point printf version (requires MATH_LIB = -lm below) PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt # If this is left blank, then it will use the Standard printf version. PRINTF_LIB = $(PRINTF_LIB_MIN) #PRINTF_LIB = $(PRINTF_LIB_MIN) #PRINTF_LIB = $(PRINTF_LIB_FLOAT) # Minimalistic scanf version SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min # Floating point + %[ scanf version (requires MATH_LIB = -lm below) SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt # If this is left blank, then it will use the Standard scanf version. SCANF_LIB = $(SCANF_LIB_MIN) #SCANF_LIB = $(SCANF_LIB_MIN) #SCANF_LIB = $(SCANF_LIB_FLOAT) MATH_LIB = -lm #---------------- Linker Options ---------------- # -Wl,...: tell GCC to pass this to linker. # -Map: create map file # --cref: add cross reference to map file #LDFLAGS = -Wl,-Map=$(TARGET).map,--cref,--gc-sections #LDFLAGS += $(EXTMEMOPTS) #LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS)) #LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB) LDFLAGS = -Wl,-Map=$(BUILDDIR)/$(PROJECT).map,--cref,--gc-sections LDFLAGS += -Wl,-u,vfprintf -lprintf_min -Wl,-u,vfscanf -lscanf_min -lm # Linker extra options ifneq ($(USE_LDOPT),) LDFLAGS += -Wl,$(USE_LDOPT) endif # # Makefile rules # all: PRE_MAKE_ALL_RULE_HOOK $(OBJS) $(OUTFILES) POST_MAKE_ALL_RULE_HOOK PRE_MAKE_ALL_RULE_HOOK: POST_MAKE_ALL_RULE_HOOK: $(OBJS): | $(BUILDDIR) $(OBJDIR) $(LSTDIR) $(BUILDDIR): ifneq ($(USE_VERBOSE_COMPILE),yes) @echo Compiler Options @echo $(CC) -c $(CFLAGS) -I. $(IINCDIR) main.c -o main.o @echo endif @mkdir -p $(BUILDDIR) $(OBJDIR): @mkdir -p $(OBJDIR) $(LSTDIR): @mkdir -p $(LSTDIR) $(ACPPOBJS) : $(OBJDIR)/%.o : %.cpp Makefile ifeq ($(USE_VERBOSE_COMPILE),yes) @echo $(CPPC) -c $(CPPFLAGS) $(MOPT) $(IINCDIR) $< -o $@ else @echo Compiling $( $@ else @echo Creating $@ @$(OD) -h -S $< > $@ endif %.sym: %.elf ifeq ($(USE_VERBOSE_COMPILE),yes) @echo $(NM) -n $< > $@ $(SZ) $< @echo if test -f $(BUILDDIR)/$(PROJECT).elf; then echo; echo $(MSG_SIZE_AFTER); \ $(ELFSIZE); 2>/dev/null; echo; fi @echo Done else @echo Creating $@ @$(NM) -n $< > $@ @echo @$(SZ) $< @if test -f $(BUILDDIR)/$(PROJECT).elf; then echo; echo $(MSG_SIZE_AFTER); \ $(ELFSIZE); 2>/dev/null; echo; fi @echo Done endif lib: $(OBJS) $(BUILDDIR)/lib$(PROJECT).a $(BUILDDIR)/lib$(PROJECT).a: $(OBJS) @$(AR) $@ $^ @echo @echo Done clean: CLEAN_RULE_HOOK @echo Cleaning -rm -fR .dep $(BUILDDIR) @echo @echo Done CLEAN_RULE_HOOK: # # Include the dependency files, should be the last of the makefile # -include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*) # *** EOF ***