| # Copyright lowRISC contributors. |
| # Licensed under the Apache License, Version 2.0, see LICENSE for details. |
| # SPDX-License-Identifier: Apache-2.0 |
| # |
| ########################################################################## |
| ## The following variables must be set prior to invoking this Makefile ## |
| ## NAME - Top level name of the final elf ## |
| ## SRCS - List of files to be compiled ## |
| ## PROGRAM_DIR - Location of file corresponding to NAME ## |
| ########################################################################## |
| |
| PROGRAM_CFLAGS += -Wall -g -Os |
| ifeq ($(SIM),1) |
| PROGRAM_CFLAGS += -DSIMULATION |
| endif |
| |
| EXE := $(NAME) |
| SW_DIR := $(PROGRAM_DIR)/../.. |
| LIB_DIR := $(SW_DIR)/lib |
| LIB_NAME = ot |
| EXT_DIR := $(SW_DIR)/exts/common |
| EXT_SRCS := $(EXT_DIR)/_crt.c |
| EXT_ASMS := |
| |
| RV_TOOLS ?= /tools/riscv/bin/ |
| OBJCOPY ?= $(subst gcc,objcopy,$(wordlist 1,1,$(CC))) |
| OBJDUMP ?= $(subst gcc,objdump,$(wordlist 1,1,$(CC))) |
| |
| # ARCH = rv32im # to disable compressed instructions |
| ARCH = rv32imc |
| LINKER_SCRIPT ?= $(EXT_DIR)/link.ld |
| |
| REGTOOL = ../../util/regtool.py |
| |
| CC := $(RV_TOOLS)/riscv32-unknown-elf-gcc |
| CFLAGS ?= -Wall -g -Os -march=$(ARCH) -mabi=ilp32 -static -mcmodel=medany \ |
| -fvisibility=hidden -nostdlib -nostartfiles $(PROGRAM_CFLAGS) |
| |
| OBJS := $(SRCS:.c=.o) $(EXT_SRCS:.c=.o) $(EXT_ASMS:.S=.o) |
| DEPS = $(OBJS:%.o=%.d) |
| |
| LIBS =-L$(LIB_DIR) -l$(LIB_NAME) |
| INCS +=-I$(LIB_DIR) |
| |
| OUTFILES := $(EXE).elf $(EXE).vmem $(EXE).bin $(EXE).dis $(EXE).map |
