# See LICENSE for license details.

SHARED_DIR = $(SWDIR)/shared

ASM_SRCS += $(SHARED_DIR)/entry.S

C_SRCS += $(SHARED_DIR)/init.c
C_SRCS += $(SHARED_DIR)/syscall.c
C_SRCS += $(SHARED_DIR)/drivers_sifive/plic.c

PLATFORM ?= freedom-e300
LINKER_SCRIPT := $(SWDIR)/../riscv-tests/debug/targets/$(PLATFORM)/link.lds
HEADERS += $(SHARED_DIR)/*.h

C_SRCS += $(TARGET).c

INCLUDES += -I .
INCLUDES += -I $(SHARED_DIR)
INCLUDES += -I $(SWDIR)/../riscv-tests/env
INCLUDES += -I$(SHARED_DIR)/drivers_sifive/

CC = $(SWDIR)/../toolchain/bin/riscv32-unknown-elf-gcc

CFLAGS += $(CDEFINES)

LDFLAGS := -T $(LINKER_SCRIPT) -nostdlib -nostartfiles -lc -lgcc
LDFLAGS += -L$(SHARED_DIR)
LDFLAGS += -L$(SHARED_DIR)/drivers
LDFLAGS += -L$(SHARED_DIR)/hal

ASM_OBJS := $(patsubst %.S,%.o,$(ASM_SRCS))
C_OBJS := $(patsubst %.c,%.o,$(C_SRCS))

$(TARGET): $(ASM_OBJS) $(C_OBJS) $(LINKER_SCRIPT)
	$(CC) $(CFLAGS) $(INCLUDES) $(C_OBJS) $(ASM_OBJS) -o $@ $(LDFLAGS)

$(ASM_OBJS): %.o: %.S $(HEADERS)
	$(CC) $(CFLAGS) $(INCLUDES) -c -o $@ $<

$(C_OBJS): %.o: %.c $(HEADERS)
	$(CC) $(CFLAGS) $(INCLUDES) -c -o $@ $<

all: default

clean:
	rm -f $(TARGET) *.o $(SHARED_DIR)/*.o $(SHARED_DIR)/drivers/*/*.o $(SHARED_DIR)/drivers_sifive/*.o

.PHONY: clean all default