71 lines
1.6 KiB
Makefile
71 lines
1.6 KiB
Makefile
ifneq (,$(wildcard ./.env))
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include .env
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export
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else
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$(warning .env file not found, loading defaults)
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include .env.example
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export
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endif
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RISCV_CC ?= riscv64-unknown-elf-gcc
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RISCV_ARCH_FLAGS ?= -march=rv32im -mabi=ilp32
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HOST_CC ?= gcc
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HOST_CFLAGS ?= -Wall -Wextra -O3 -g
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HOST_LDFLAGS ?= -Wl,-s
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EMU_SRC_FILES := $(wildcard src/emulated/*.c)
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EMU_OBJ_FILES := $(EMU_SRC_FILES:src/emulated/%.c=build/%.riscv.o)
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EMU_OBJ := build/emulated.riscv.elf
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GENERATED := build/include/generated.h
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HOST_SRC := src/main.c src/elf.c
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ifeq ($(OS),Windows_NT)
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HOST_EXE := build/main.exe
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else
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HOST_EXE := build/main
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endif
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# Disassembly
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RISCV_OBJDUMP ?= $(patsubst %-gcc,%-objdump,$(RISCV_CC))
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_DISAS_TARGETS := $(filter disas-%,$(MAKECMDGOALS))
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_DISAS_FILES := $(if $(_DISAS_TARGETS),$(filter %.elf %.o,$(MAKECMDGOALS)))
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.PHONY: all emulated-riscv host clean disas-risc
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all: $(HOST_EXE) $(EMU_OBJ)
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emulated-riscv: $(EMU_OBJ)
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host: $(HOST_EXE)
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$(HOST_EXE): $(HOST_SRC) tinyriscv/src/tinyriscv.h src/config.h src/elf.h | build
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$(HOST_CC) $(HOST_CFLAGS) $(HOST_LDFLAGS) -I src -I tinyriscv/src $(HOST_SRC) -o $@
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build/%.riscv.o: src/emulated/%.c $(GENERATED) | build
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$(RISCV_CC) $(RISCV_ARCH_FLAGS) -I $(dir $(GENERATED)) -I src/emulated -c $< -o $@
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$(EMU_OBJ): $(EMU_OBJ_FILES) | build
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$(RISCV_CC) $(RISCV_ARCH_FLAGS) -nostdlib -Wl,-e,entry -Wl,-Ttext=0 -Wl,--emit-relocs $(EMU_OBJ_FILES) -o $@
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.FORCE:
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$(GENERATED): .FORCE
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mkdir -p $(dir $@)
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python codegen/generate.py $(FLAG_PREFIX) $(FLAG_LEN) > $@
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build:
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mkdir -p $@
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clean:
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rm -rf build
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disas-risc: $(_DISAS_FILES)
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$(RISCV_OBJDUMP) -d $^
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