285 lines
7.2 KiB
Makefile
285 lines
7.2 KiB
Makefile
# AVR common makefile scripts and rules.
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##############################################################################
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# Processing options coming from the upper Makefile.
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#
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# Compiler options
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OPT := $(USE_OPT)
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COPT := $(USE_COPT)
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CPPOPT := $(USE_CPPOPT)
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# Output directory and files
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ifeq ($(BUILDDIR),)
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BUILDDIR = build
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endif
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ifeq ($(BUILDDIR),.)
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BUILDDIR = build
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endif
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OUTFILES := $(BUILDDIR)/$(PROJECT).elf \
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$(BUILDDIR)/$(PROJECT).hex \
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$(BUILDDIR)/$(PROJECT).bin \
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$(BUILDDIR)/$(PROJECT).eep \
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$(BUILDDIR)/$(PROJECT).lss \
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$(BUILDDIR)/$(PROJECT).sym
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ifdef SREC
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OUTFILES += $(BUILDDIR)/$(PROJECT).srec
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endif
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# Source files groups and paths
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ASRC := $(CSRC) $(CPPSRC)
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SRCPATHS := $(sort $(dir $(ASMXSRC)) $(dir $(ASMSRC)) $(dir $(ASRC)))
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# Various directories
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OBJDIR := $(BUILDDIR)/obj
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LSTDIR := $(BUILDDIR)/lst
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# Object files groups
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ACOBJS := $(addprefix $(OBJDIR)/, $(notdir $(CSRC:.c=.o)))
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ACPPOBJS := $(addprefix $(OBJDIR)/, $(notdir $(CPPSRC:.cpp=.o)))
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ASMOBJS := $(addprefix $(OBJDIR)/, $(notdir $(ASMSRC:.s=.o)))
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ASMXOBJS := $(addprefix $(OBJDIR)/, $(notdir $(ASMXSRC:.S=.o)))
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OBJS := $(ASMXOBJS) $(ASMOBJS) $(ACOBJS) $(ACPPOBJS)
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# Paths
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IINCDIR := $(patsubst %, -I%,$(INCDIR) $(DINCDIR) $(UINCDIR))
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LLIBDIR := $(patsubst %, -L%,$(DLIBDIR) $(ULIBDIR))
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LLIBDIR += -L$(dir $(LDSCRIPT))
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# Macros
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DEFS := $(DDEFS) $(UDEFS)
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ADEFS := $(DADEFS) $(UADEFS)
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# Libs
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LIBS := $(DLIBS) $(ULIBS)
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# Compiler flag to set the C Standard level.
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# c89 = "ANSI" C
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# gnu89 = c89 plus GCC extensions
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# c99 = ISO C99 standard (not yet fully implemented)
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# gnu99 = c99 plus GCC extensions
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CSTANDARD = -std=gnu11
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# Place -D or -U options here for C sources
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CDEFS = -DF_CPU=$(F_CPU)UL
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# Place -D or -U options here for ASM sources
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ADEFS = -DF_CPU=$(F_CPU)
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# Place -D or -U options here for C++ sources
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CPPDEFS = -DF_CPU=$(F_CPU)UL
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# Paths where to search for sources
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VPATH = $(SRCPATHS)
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# Various settings
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MCFLAGS := -mmcu=$(MCU)
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CFLAGS = $(MCFLAGS) -I. -gdwarf-2 $(CDEFS) $(OPT) -funsigned-char
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CFLAGS += -funsigned-bitfields -fpack-struct -fshort-enums $(CWARN)
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CFLAGS += -Wa,-adhlns=$(LSTDIR)/$(notdir $(<:.c=.lst)) $(DEFS)
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CFLAGS += -std=gnu11 -mrelax -fdata-sections -ffunction-sections
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CFLAGS += -Wundef -MMD -MP #-MF
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#---------------- Assembler Options ----------------
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# -Wa,...: tell GCC to pass this to the assembler.
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# -adhlns: create listing
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# -gstabs: have the assembler create line number information; note that
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# for use in COFF files, additional information about filenames
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# and function names needs to be present in the assembler source
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# files -- see avr-libc docs [FIXME: not yet described there]
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# -listing-cont-lines: Sets the maximum number of continuation lines of hex
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# dump that will be displayed for a given single line of source input.
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ASFLAGS = $(ADEFS) -Wa,-adhlns=$(<:%.S=$(OBJDIR)/%.lst),-gstabs, \
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--listing-cont-lines=100
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#---------------- Library Options ----------------
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# Minimalistic printf version
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PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
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# Floating point printf version (requires MATH_LIB = -lm below)
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PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
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# If this is left blank, then it will use the Standard printf version.
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PRINTF_LIB = $(PRINTF_LIB_MIN)
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#PRINTF_LIB = $(PRINTF_LIB_MIN)
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#PRINTF_LIB = $(PRINTF_LIB_FLOAT)
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# Minimalistic scanf version
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SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
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# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
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SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
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# If this is left blank, then it will use the Standard scanf version.
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SCANF_LIB = $(SCANF_LIB_MIN)
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#SCANF_LIB = $(SCANF_LIB_MIN)
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#SCANF_LIB = $(SCANF_LIB_FLOAT)
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MATH_LIB = -lm
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#---------------- Linker Options ----------------
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# -Wl,...: tell GCC to pass this to linker.
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# -Map: create map file
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# --cref: add cross reference to map file
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#LDFLAGS = -Wl,-Map=$(TARGET).map,--cref,--gc-sections
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#LDFLAGS += $(EXTMEMOPTS)
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#LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
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#LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
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LDFLAGS = -Wl,-Map=$(BUILDDIR)/$(PROJECT).map,--cref,--gc-sections
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LDFLAGS += -Wl,-u,vfprintf -lprintf_min -Wl,-u,vfscanf -lscanf_min -lm
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#
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# Makefile rules
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#
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all: PRE_MAKE_ALL_RULE_HOOK $(OBJS) $(OUTFILES) POST_MAKE_ALL_RULE_HOOK
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PRE_MAKE_ALL_RULE_HOOK:
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POST_MAKE_ALL_RULE_HOOK:
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$(OBJS): | $(BUILDDIR) $(OBJDIR) $(LSTDIR)
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$(BUILDDIR):
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ifneq ($(USE_VERBOSE_COMPILE),yes)
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@echo Compiler Options
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@echo $(CC) -c $(CFLAGS) -I. $(IINCDIR) main.c -o main.o
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@echo
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endif
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@mkdir -p $(BUILDDIR)
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$(OBJDIR):
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@mkdir -p $(OBJDIR)
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$(LSTDIR):
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@mkdir -p $(LSTDIR)
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$(ACPPOBJS) : $(OBJDIR)/%.o : %.cpp Makefile
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ifeq ($(USE_VERBOSE_COMPILE),yes)
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@echo
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$(CPPC) -c $(CPPFLAGS) $(MOPT) $(IINCDIR) $< -o $@
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else
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@echo Compiling $(<F)
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@$(CPPC) -c $(CPPFLAGS) $(MOPT) $(IINCDIR) $< -o $@
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endif
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$(ACOBJS) : $(OBJDIR)/%.o : %.c Makefile
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ifeq ($(USE_VERBOSE_COMPILE),yes)
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@echo
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$(CC) -c $(CFLAGS) $(MOPT) $(IINCDIR) $< -o $@
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else
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@echo Compiling $(<F)
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@$(CC) -c $(CFLAGS) $(MOPT) $(IINCDIR) $< -o $@
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endif
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$(ASMOBJS) : $(OBJDIR)/%.o : %.s Makefile
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ifeq ($(USE_VERBOSE_COMPILE),yes)
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@echo
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$(AS) -c $(ASFLAGS) -I. $(IINCDIR) $< -o $@
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else
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@echo Compiling $(<F)
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@$(AS) -c $(ASFLAGS) -I. $(IINCDIR) $< -o $@
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endif
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$(ASMXOBJS) : $(OBJDIR)/%.o : %.S Makefile
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ifeq ($(USE_VERBOSE_COMPILE),yes)
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@echo
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$(CC) -c $(ASXFLAGS) $(TOPT) -I. $(IINCDIR) $< -o $@
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else
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@echo Compiling $(<F)
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@$(CC) -c $(ASXFLAGS) $(TOPT) -I. $(IINCDIR) $< -o $@
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endif
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$(BUILDDIR)/$(PROJECT).elf: $(OBJS)
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ifeq ($(USE_VERBOSE_COMPILE),yes)
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@echo
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$(CC) $(CFLAGS) $^ --output $@ $(LDFLAGS)
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else
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@echo Linking $@
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@$(CC) $(CFLAGS) $^ --output $@ $(LDFLAGS)
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endif
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%.hex: %.elf
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ifeq ($(USE_VERBOSE_COMPILE),yes)
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@echo
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$(HEX) $< $@
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else
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@echo Creating $@
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@$(HEX) $< $@
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endif
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%.bin: %.elf
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ifeq ($(USE_VERBOSE_COMPILE),yes)
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@echo
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$(BIN) $< $@
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else
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@echo Creating $@
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@$(BIN) $< $@
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endif
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%.eep: %.elf
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ifeq ($(USE_VERBOSE_COMPILE),yes)
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@echo
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-$(CP) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
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--change-section-lma .eeprom=0 --no-change-warnings -O $(FORMAT) \
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$< $@ || exit 0
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else
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@echo Creating $@
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@-$(CP) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
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--change-section-lma .eeprom=0 --no-change-warnings -O $(FORMAT) \
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$< $@ || exit 0
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endif
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%.lss: %.elf
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ifeq ($(USE_VERBOSE_COMPILE),yes)
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@echo
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$(OD) -h -S $< > $@
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else
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@echo Creating $@
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@$(OD) -h -S $< > $@
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endif
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%.sym: %.elf
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ifeq ($(USE_VERBOSE_COMPILE),yes)
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@echo
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$(NM) -n $< > $@
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$(SZ) $<
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@echo
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if test -f $(BUILDDIR)/$(PROJECT).elf; then echo; echo $(MSG_SIZE_AFTER); \
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$(ELFSIZE); 2>/dev/null; echo; fi
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@echo Done
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else
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@echo Creating $@
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@$(NM) -n $< > $@
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@echo
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@$(SZ) $<
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@if test -f $(BUILDDIR)/$(PROJECT).elf; then echo; echo $(MSG_SIZE_AFTER); \
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$(ELFSIZE); 2>/dev/null; echo; fi
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@echo Done
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endif
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lib: $(OBJS) $(BUILDDIR)/lib$(PROJECT).a
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$(BUILDDIR)/lib$(PROJECT).a: $(OBJS)
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@$(AR) -r $@ $^
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@echo
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@echo Done
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clean: CLEAN_RULE_HOOK
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@echo Cleaning
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-rm -fR .dep $(BUILDDIR)
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@echo
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@echo Done
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CLEAN_RULE_HOOK:
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#
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# Include the dependency files, should be the last of the makefile
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#
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-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
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# *** EOF ***
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