Makefile

TARGET = libdaisysp

MODULE_DIR = modules
MODULES = \
adenv \
adsr  \
allpass \
autowah \
atone \
balance \
biquad \
blosc \
bitcrush \
comb \
compressor \
crossfade \
dcblock \
decimator \
drip \
fold \
jitter \
line \
limiter \
moogladder \
nlfilt \
metro \
mode \
oscillator \
phasor \
pluck \
port \
reverbsc \
svf \
tone \

# certain modules are only header files:
# delayline 
# pitchshifter
# whitenoise
# polypluck

# TODO: Consider making this work for PCs as well?

CHIPSET = stm32f7x

######################################
# building variables
######################################
# debug build?
#DEBUG = 0
# optimization
#OPT = -Og
OPT = -O3

#######################################
# paths
#######################################
# source path
SOURCES_DIR =  \

# Build path
BUILD_DIR = build

######################################
# source
######################################

# C sources
C_SOURCES += $(addsuffix .c, $(MODULE_DIR)/$(MODULES))
# CPP sources
CPP_SOURCES += $(addsuffix .cpp, $(MODULE_DIR)/$(MODULES))

#######################################
# binaries
#######################################
PREFIX = arm-none-eabi-
# The gcc compiler bin path can be either defined in make command via GCC_PATH variable (> make GCC_PATH=xxx)
# either it can be added to the PATH environment variable.
ifdef GCC_PATH
CC = $(GCC_PATH)/$(PREFIX)gcc
CXX = $(GCC_PATH)/$(PREFIX)g++
AS = $(GCC_PATH)/$(PREFIX)gcc -x assembler-with-cpp
CP = $(GCC_PATH)/$(PREFIX)objcopy
SZ = $(GCC_PATH)/$(PREFIX)size
AR = $(GCC_PATH)/$(PREFIX)ar
GDB = $(GCC_PATH)/$(PREFIX)gdb
else
CC = $(PREFIX)gcc
CXX = $(PREFIX)g++
AS = $(PREFIX)gcc -x assembler-with-cpp
CP = $(PREFIX)objcopy
SZ = $(PREFIX)size
AR = $(PREFIX)ar
GDB = $(PREFIX)gdb
endif
HEX = $(CP) -O ihex
BIN = $(CP) -O binary -S

#######################################
# CFLAGS
#######################################

# language standards
C_STD = -std=gnu11
CPP_STD = -std=gnu++14

# cpu
CPU = -mcpu=cortex-m7

# fpu
FPU = -mfpu=fpv5-d16

# float-abi
FLOAT-ABI = -mfloat-abi=hard

# mcu
MCU = $(CPU) -mthumb $(FPU) $(FLOAT-ABI)

# macros for gcc
# AS defines
AS_DEFS = 

# C defines
C_DEFS =  \
-DUSE_HAL_DRIVER \
-DSTM32H750xx \
-DUSE_HAL_DRIVER \
-DSTM32H750xx

C_INCLUDES = \
-I. \

# compile gcc flags
ASFLAGS = $(MCU) $(AS_DEFS) $(AS_INCLUDES) $(OPT) -Wall -fdata-sections -ffunction-sections

CFLAGS = $(MCU) $(C_DEFS) $(C_INCLUDES) $(OPT) -Wall -Werror -fdata-sections -ffunction-sections

ifeq ($(DEBUG), 1)
CFLAGS += -g -gdwarf-2
endif

# Generate dependency information
CFLAGS += -MMD -MP -MF"$(@:%.o=%.d)" -MT"$(@:%.o=%.d)"

CPPFLAGS = $(CFLAGS)
CPPFLAGS += \
-fno-exceptions \
-finline-functions

#######################################
# LDFLAGS # Not Used 
# TODO: Clean this up.
#######################################
# link script
#LDSCRIPT = STM32H750IB_FLASH.lds

# libraries
#LIBS = lc -lm -lnosys 
#LIBDIR = 
#LDFLAGS = $(MCU) -specs=nano.specs -T$(LDSCRIPT) $(LIBDIR) $(LIBS) -Wl,-Map=$(BUILD_DIR)/$(TARGET).map,--cref -Wl,--gc-sections

# default action: build all
all: $(BUILD_DIR)/$(TARGET).a 

#######################################
# build the library
#######################################

# list of objects
OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
vpath %.c $(sort $(dir $(C_SOURCES)))
OBJECTS += $(addprefix $(BUILD_DIR)/,$(notdir $(CPP_SOURCES:.cpp=.o)))
vpath %.cpp $(sort $(dir $(CPP_SOURCES)))
# list of ASM program objects
OBJECTS += $(addprefix $(BUILD_DIR)/,$(notdir $(ASM_SOURCES:.s=.o)))
vpath %.s $(sort $(dir $(ASM_SOURCES)))

$(BUILD_DIR)/%.o: %.c Makefile | $(BUILD_DIR)
	$(CC) -c $(CFLAGS) $(C_STD) -static -Wa,-a,-ad,-alms=$(BUILD_DIR)/$(notdir $(<:.c=.lst)) $< -o $@

$(BUILD_DIR)/%.o: %.cpp Makefile | $(BUILD_DIR)
	$(CXX) -c $(CPPFLAGS) $(CPP_STD) -static -Wa,-a,-ad,-alms=$(BUILD_DIR)/$(notdir $(<:.cpp=.lst)) $< -o $@

$(BUILD_DIR)/%.o: %.s Makefile | $(BUILD_DIR)
	$(AS) -c $(CFLAGS) $< -o $@

$(BUILD_DIR)/$(TARGET).a: $(OBJECTS) Makefile
	$(AR) rcs $@ $(OBJECTS)

$(BUILD_DIR):
	mkdir $@        

#######################################
# clean up
#######################################
clean:
	-rm -fR $(BUILD_DIR)
#######################################

# dependencies
#######################################
-include $(wildcard $(BUILD_DIR)/*.d)