87 lines
2.1 KiB
Makefile
87 lines
2.1 KiB
Makefile
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CC := avr-gcc
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AR := avr-ar
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SIZE := avr-size
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OBJDUMP = avr-objdump
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SRCDIR := src
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BUILDDIR := build
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INCDIR := include
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LIBDIR := lib
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LIB := libcommon
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SRCEXT := c
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SOURCES := $(shell find $(SRCDIR) -type f -name *.$(SRCEXT))
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OBJECTS := $(patsubst $(SRCDIR)/%,$(BUILDDIR)/%,$(SOURCES:.$(SRCEXT)=.o))
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INC := -I $(INCDIR)
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# AR flags
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ARFLAGS := rcs
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MCU = atmega328p
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## Language standard
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CFLAGS += -std=gnu99
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## Definitions
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CFLAGS += -DF_CPU=16000000L -D__AVR__ -D__AVR_ATmega328P__
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## Tuning
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# CFLAGS += -funsigned-char -funsigned-bitfields -fpack-struct -fshort-enums
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# Debugging format.
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# Native formats for AVR-GCC's -g are stabs [default], or dwarf-2.
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# AVR (extended) COFF requires stabs, plus an avr-objcopy run.
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DEBUG_FORMAT = stabs
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ifeq ($(BUILD),debug)
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CFLAGS += -DDEBUG -g$(DEBUG_FORMAT)
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CFLAGS += -Wall -Wextra -Wformat=2 -Wswitch-default \
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-Wcast-align -Wpointer-arith -Wbad-function-cast \
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-Wstrict-prototypes -Winline -Wundef -Wnested-externs \
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-Wcast-qual -Wshadow -Wwrite-strings -Wconversion \
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-Winit-self -Wstrict-aliasing -Wmissing-declarations \
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-Wmissing-include-dirs -Wno-unused-parameter -Wuninitialized \
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-Wold-style-definition -Wmissing-prototypes -Wunreachable-code \
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-Wno-unused-but-set-variable -Wmaybe-uninitialized
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CINCS += -I/usr/include/simavr
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#
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else
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CFLAGS += -DNDEBUG -s -Os
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endif
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.PHONY: clean debug all
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all: lib
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lib: $(LIBDIR)/$(LIB).a
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debug_header:
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@echo "================================================="
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@echo "Debug build initiated..."
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@echo "--------"
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debug: clean debug_header
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$(MAKE) "BUILD=debug"
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$(BUILDDIR)/%.o: $(SRCDIR)/%.$(SRCEXT)
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@echo "================================================="
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@echo "Building objects..."
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@echo "--------"
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@mkdir -p $(BUILDDIR)
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@mkdir -p $(LIBDIR)
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@mkdir -p $(INCDIR)
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$(CC) $(CFLAGS) $(INC) -c -o $@ $<
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.SECONDARY: $(OBJ)
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%.a: $(OBJECTS)
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@echo "================================================="
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@echo "Building static library..."
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@echo "--------"
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$(AR) $(ARFLAGS) $(LIBDIR)/$(LIB).a $(OBJECTS)
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clean:
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@echo "================================================="
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@echo "Cleaning up build files...";
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@rm -rf $(BUILDDIR) $(LIBDIR)
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