CCFLAGS = -Wall -Wextra -Wshadow -pedantic -std=c99

ifndef PLATFORM
  BUILD_DIR = build/linux-x86
  CCFLAGS += -g -O2 -m32 
  CCFLAGS += -D_PRELUDE
  PLATFORMSRC = platform/linux/src
  PLATFORMINC = platform/linux/include
  CC=gcc
  AR=ar
else
  CC=${CROSS_COMPILE}gcc
  AR=${CROSS_COMPILE}ar
endif

ifeq ($(PLATFORM),linux-x64)
  BUILD_DIR = build/linux-x64
  CCFLAGS += -g -O2 -DLBM64
  CCFLAGS += -D_PRELUDE
  PLATFORMSRC = platform/linux/src
  PLATFORMINC = platform/linux/include
  CC=gcc
  AR=ar	
endif

ifeq ($(PLATFORM), zynq)
  CROSS_COMPILE = arm-none-eabi-
  BUILD_DIR = build/zynq
  CCFLAGS += -mcpu=cortex-a9 -mfpu=vfpv3 -mfloat-abi=hard -O2 
  CCFLAGS += -D_PRELUDE
endif

ifeq ($(PLATFORM), stm32f4)
  CROSS_COMPILE = arm-none-eabi-
  BUILD_DIR = build/stm32f4
  CCFLAGS += -mcpu=cortex-m4 -mthumb -mfloat-abi=hard -mfpu=fpv4-sp-d16 -O2
#-fmessage-length=0 -ffunction-sections -c -MMD -MP
  PLATFORMSRC = platform/chibios/src
  PLATFORMINC = platform/chibios/include

  CCFLAGS += -D_PRELUDE
endif

ifeq ($(PLATFORM), nrf52840)
  CROSS_COMPILE = arm-none-eabi-
  BUILD_DIR = build/nrf52840
  CCFLAGS += -mcpu=cortex-m4  -mthumb -ffunction-sections -fdata-sections -mabi=aapcs -march=armv7e-m -O2
  CCFLAGS += -D_PRELUDE
endif

ifeq ($(PLATFORM), pi) #for compiling natively on the pi
  BUILD_DIR = build/pi
  CCFLAGS += -g -O2 -m32 
  CCFLAGS += -D_PRELUDE
  PLATFORMSRC = platform/linux/src
  PLATFORMINC = platform/linux/include
endif

SOURCE_DIR = src
INCLUDE_DIR = -I./include -I./include/extensions
EXTENSIONS = src/extensions

$(shell mkdir -p ${BUILD_DIR})
$(shell mkdir -p ${BUILD_DIR}/extensions)


SRC = src
OBJ = obj

SOURCES = $(wildcard $(SOURCE_DIR)/*.c)
SOURCES += $(wildcard $(EXTENSIONS)/*.c)
OBJECTS = $(patsubst $(SOURCE_DIR)/%.c, $(BUILD_DIR)/%.o, $(SOURCES))



PLATSRCS = $(wildcard $(PLATFORMSRC)/*.c)
PLATOBJS = $(patsubst $(PLATFORMSRC)/%.c, $(BUILD_DIR)/%.o, $(PLATSRCS))

ifdef HEAP_VIS
	OBJECTS += $(BUILD_DIR)/heap_vis.o
	CCFLAGS += -DVISUALIZE_HEAP
endif


LIB = $(BUILD_DIR)/liblispbm.a

all: $(OBJECTS) $(LIB)

debug: CCFLAGS += -g 
debug: $(OBJECTS) $(LIB)

$(LIB): $(OBJECTS) 
	$(AR) -rcs $@ $(OBJECTS) 

$(BUILD_DIR)/%.o: $(SOURCE_DIR)/%.c
	$(CC) $(INCLUDE_DIR) -I$(PLATFORMINC) $(CCFLAGS) -c $< -o $@

$(BUILD_DIR)/heap_vis.o: $(SOURCE_DIR)/visual/heap_vis.c
	$(CC) $(INCLUDE_DIR) -I$(PLAFORMINC) $(CCFLAGS) -c $< -o $@

test:
	cd tests && ./run_tests.sh

clean:
	rm -f ${BUILD_DIR}/*.o
	rm -f ${BUILD_DIR}/extensions/*.o
	rm -f ${BUILD_DIR}/*.a