Vortex 2.0 changes:

+ Microarchitecture optimizations
+ 64-bit support
+ Xilinx FPGA support
+ LLVM-16 support
+ Refactoring and quality control fixes

runtime/Makefile

@@ -1,49 +1,25 @@
-XLEN ?= 32
+all: stub rtlsim simx opae
 
-ifeq ($(XLEN),32)
-RISCV_TOOLCHAIN_PATH = /opt/riscv-gnu-toolchain
-else
-RISCV_TOOLCHAIN_PATH = /opt/riscv64-gnu-toolchain
-endif
+stub:
+	$(MAKE) -C stub
 
-RISCV_PREFIX ?= riscv$(XLEN)-unknown-elf-
+simx:
+	$(MAKE) -C simx
 
-CC = $(RISCV_TOOLCHAIN_PATH)/bin/$(RISCV_PREFIX)gcc
-AR = $(RISCV_TOOLCHAIN_PATH)/bin/$(RISCV_PREFIX)gcc-ar
-DP = $(RISCV_TOOLCHAIN_PATH)/bin/$(RISCV_PREFIX)objdump
-CP = $(RISCV_TOOLCHAIN_PATH)/bin/$(RISCV_PREFIX)objcopy
+rtlsim:
+	$(MAKE) -C rtlsim
 
-ifeq ($(XLEN),32)
-CFLAGS += -march=rv32imf -mabi=ilp32f
-else
-CFLAGS += -march=rv64imfd -mabi=lp64d
-endif
+opae:
+	$(MAKE) -C opae
 
-CFLAGS += -O3 -mcmodel=medany -Wstack-usage=1024 -fno-exceptions -fdata-sections -ffunction-sections
-CFLAGS += -I./include -I../hw
-
-PROJECT = libvortexrt
-
-SRCS = ./src/vx_start.S ./src/vx_syscalls.c ./src/vx_print.S ./src/tinyprintf.c ./src/vx_print.c ./src/vx_spawn.c ./src/vx_spawn.S ./src/vx_perf.c
-
-OBJS := $(addsuffix .o, $(notdir $(SRCS)))
-
-all: $(PROJECT).a $(PROJECT).dump
-
-$(PROJECT).dump: $(PROJECT).a
-	$(DP) -D $(PROJECT).a > $(PROJECT).dump
-
-%.S.o: src/%.S
-	$(CC) $(CFLAGS) -c $< -o $@
-
-%.c.o: src/%.c
-	$(CC) $(CFLAGS) -c $< -o $@
-
-$(PROJECT).a: $(OBJS)
-	$(AR) rcs $@ $^
-
-.depend: $(SRCS)
-	$(CC) $(CFLAGS) -MM $^ > .depend;
+xrt:
+	$(MAKE) -C xrt
 
 clean:
-	rm -rf *.a *.o *.dump .depend 
+	$(MAKE) clean -C stub
+	$(MAKE) clean -C simx
+	$(MAKE) clean -C rtlsim
+	$(MAKE) clean -C opae
+	$(MAKE) clean -C xrt
+
+.PHONY: all stub simx rtlsim opae xrt clean