feat: add lab-rv32i-c-uart card

Makefile

@@ -0,0 +1,54 @@
+RISCV_PREFIX ?= riscv64-unknown-elf-
+CC := $(RISCV_PREFIX)gcc
+OBJCOPY := $(RISCV_PREFIX)objcopy
+OBJDUMP := $(RISCV_PREFIX)objdump
+SIZE := $(RISCV_PREFIX)size
+
+RV_ENV_ROOT ?= /home/user/dev/edu/rv32i-hazard3-student-env
+H3_COMMON ?= $(RV_ENV_ROOT)/vendor/Hazard3/test/sim/common
+H3_INIT ?= $(H3_COMMON)/init.S
+H3_IRQ_DISPATCH ?= $(H3_COMMON)/irq_dispatch.S
+LDSCRIPT ?= link/hazard3_c12.ld
+MEMOPS ?= $(RV_ENV_ROOT)/vendor/lab-runtime/memops.c
+
+BUILD_ROOT ?= build
+TASKS := task01_uart_polling task02_uart_rx_interrupt task03_uart_mailbox
+ARCH ?= rv32i_zicsr_zifencei
+ABI ?= ilp32
+CFLAGS := -std=gnu11 -march=$(ARCH) -mabi=$(ABI) -nostdlib -nostartfiles \
+	-ffreestanding -fno-builtin -fno-stack-protector -O0 -g3 -ggdb \
+	-fno-omit-frame-pointer -fno-inline -Wall -Wextra \
+	-Isrc/tasks -I$(H3_COMMON)
+LDFLAGS := -Wl,--no-relax -T$(LDSCRIPT)
+LIBS := -lgcc
+
+.PHONY: all tasks clean check-support $(TASKS)
+all: tasks
+tasks: $(TASKS)
+
+check-support:
+	@test -f "$(H3_INIT)"
+	@test -f "$(H3_IRQ_DISPATCH)"
+	@test -f "$(H3_COMMON)/tb_uart_io.h"
+	@test -f "$(MEMOPS)"
+
+define task_rules
+$(1): $(BUILD_ROOT)/$(1)/prog.bin $(BUILD_ROOT)/$(1)/prog.elf $(BUILD_ROOT)/$(1)/prog.lst
+
+$(BUILD_ROOT)/$(1)/prog.elf: crt0.S src/tasks/$(1).c src/tasks/c12_common.h $(H3_INIT) $(H3_IRQ_DISPATCH) $(LDSCRIPT) $(MEMOPS) | check-support
+	mkdir -p $$(@D)
+	$(CC) $(CFLAGS) $(LDFLAGS) -Wl,-Map,$(BUILD_ROOT)/$(1)/prog.map \
+		-o $$@ $(H3_INIT) $(H3_IRQ_DISPATCH) crt0.S $(MEMOPS) src/tasks/$(1).c $(LIBS)
+	$(SIZE) -A -x $$@
+
+$(BUILD_ROOT)/$(1)/prog.bin: $(BUILD_ROOT)/$(1)/prog.elf
+	$(OBJCOPY) -O binary $$< $$@
+
+$(BUILD_ROOT)/$(1)/prog.lst: $(BUILD_ROOT)/$(1)/prog.elf
+	$(OBJDUMP) -d -S -M no-aliases,numeric $$< > $$@
+endef
+
+$(foreach task,$(TASKS),$(eval $(call task_rules,$(task))))
+
+clean:
+	rm -rf $(BUILD_ROOT)