RELEASE and DEBUG build in makefile - makefile

Question

I am developing an application for STM32 in stm32cubeIDE
I am using the below custom makefile. Now i want to have a release and a debug build, but they both build the debug build.
I´ve tried
RELDIR = bin/release
DEBUGDIR = bin/debug
ifdef DEBUG
BIN=$(DEBUGDIR)
COMPILERFLAGS += -g3 -O0 -D_DEBUG
else
BIN=$(RELDIR)
COMPILERFLAGS += -O3
endif
and
debug : rebuild
BIN=$(DEBUGDIR)
COMPILERFLAGS += -g3 -O0 -D_DEBUG
release : rebuild
BIN=$(RELDIR)
COMPILERFLAGS += -O3
Can someone tell me how to achieve a release and a debug build :)
Full script:
RED = [31m
GREEN = [32m
YELLOW = [33m
BLUE = [34m
NC = [0m
BIN = bin
SRC = src
INC = inc
SOURCE = $(wildcard $(SRC)/*.c)
OBJECT = $(patsubst %,$(BIN)/%, $(notdir $(SOURCE:.c=.o)))
COMPILER=arm-none-eabi-gcc
ARCHITECTURE=cortex-m4
COMPILERFLAGS= -c -mcpu=$(ARCHITECTURE) -mthumb -mfloat-abi=soft -std=gnu11 -Wall -I $(INC)
LINKERFLAGS= -mcpu=$(ARCHITECTURE) -mthumb -mfloat-abi=soft --specs=nano.specs --specs=rdimon.specs -lc -lrdimon --specs=nosys.specs -T stm32_linker_script.ld -Wl,-Map=out.map
COMPILE= $(COMPILER) $(COMPILERFLAGS) -o $# $<
LINK= $(COMPILER) $(LINKERFLAGS) -o $# $^
RELDIR = bin/release
DEBUGDIR = bin/debug
ifdef DEBUG
BIN=$(DEBUGDIR)
COMPILERFLAGS += -g3 -O0 -D_DEBUG
else
BIN=$(RELDIR)
COMPILERFLAGS += -O3
endif
debug : rebuild
#BIN=$(DEBUGDIR)
#COMPILERFLAGS += -g3 -O0 -D_DEBUG
#
release : rebuild
#BIN=$(RELDIR)
#COMPILERFLAGS += -O3
.PHONY: rebuild
rebuild:
$(MAKE) clean
$(MAKE) all
all : out.elf
#echo "$(GREEN)Done!$(NC)"
out.elf : $(OBJECT)
#echo "$(YELLOW)Linking...$(NC)"
$(LINK)
$(BIN)/%.o : $(SRC)/%.c
$(COMPILE)
.PHONY: all clean debug prep release remake
clean:
#echo "$(GREEN)Cleaning...$(NC)"
rm -rf $(BIN)/*.o $(BIN)/*.elf

Answer 1

I ended up creating two makefiles, one for debug and one for release. It is kind of anoying to have duplicated code, but at least it is obvious what is going on in each script. The scripts are then called from the IDE via "make -f Makefile.DEBUG.mk rebuild" and "make -f Makefile.REBUILD.mk rebuild"
#RED = [31m
#GREEN = [32m
#YELLOW = [33m
BLUE = [34m
NC = [0m
BIN = bin/release
SRC = src
INC = inc
MAKE = make -f Makefile.RELEASE.mk
COMPILER=arm-none-eabi-gcc
ARCHITECTURE=cortex-m4
COMPILERFLAGS= -c -mcpu=$(ARCHITECTURE) \
-mthumb -mfloat-abi=soft -std=gnu11 -Wall -O3 -I $(INC)
LINKERFLAGS= -mcpu=$(ARCHITECTURE) \
-mthumb -mfloat-abi=soft \
--specs=nano.specs \
-T stm32_linker_script.ld \
-Wl,-Map=$(BIN)/out.map
COMPILE= $(COMPILER) $(COMPILERFLAGS) -o $# $<
LINK= $(COMPILER) $(LINKERFLAGS) -o $(BIN)/$# $^
SOURCE = $(wildcard $(SRC)/*.c)
OBJECT = $(patsubst %,$(BIN)/%, $(notdir $(SOURCE:.c=.o)))
.PHONY: rebuild
rebuild:
$(MAKE) clean
$(MAKE) all
all : out.elf
#echo "$(BLUE)Done!$(NC)"
out.elf : $(OBJECT)
#echo "$(BLUE)Linking...$(NC)"
$(LINK)
$(BIN)/%.o : $(SRC)/%.c
$(COMPILE)
.PHONY: all clean
clean:
#echo "$(BLUE)Cleaning...$(NC)"
rm -rf $(BIN)/*.o $(BIN)/*.elf $(BIN)/*.map
and
#RED = [31m
#GREEN = [32m
#YELLOW = [33m
BLUE = [34m
NC = [0m
BIN = bin/debug
SRC = src
INC = inc
MAKE = make -f Makefile.DEBUG.mk
COMPILER=arm-none-eabi-gcc
ARCHITECTURE=cortex-m4
COMPILERFLAGS= -c -mcpu=$(ARCHITECTURE) \
-mthumb -mfloat-abi=soft -std=gnu11 -Wall -g -I $(INC)
LINKERFLAGS= -mcpu=$(ARCHITECTURE) \
-mthumb -mfloat-abi=soft \
--specs=nano.specs \
--specs=rdimon.specs -lc -lrdimon \
--specs=nosys.specs \
-T stm32_linker_script.ld \
-Wl,-Map=$(BIN)/out.map
COMPILE= $(COMPILER) $(COMPILERFLAGS) -o $# $<
LINK= $(COMPILER) $(LINKERFLAGS) -o $(BIN)/$# $^
SOURCE = $(wildcard $(SRC)/*.c)
OBJECT = $(patsubst %,$(BIN)/%, $(notdir $(SOURCE:.c=.o)))
.PHONY: rebuild
rebuild:
$(MAKE) clean
$(MAKE) all
all : out.elf
#echo "$(BLUE)Done!$(NC)"
out.elf : $(OBJECT)
#echo "$(BLUE)Linking...$(NC)"
$(LINK)
$(BIN)/%.o : $(SRC)/%.c
$(COMPILE)
.PHONY: all clean
clean :
#echo "$(BLUE)Cleaning...$(NC)"
rm -rf $(BIN)/*.o $(BIN)/*.elf $(BIN)/*.map