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https://github.com/FreeRTOS/FreeRTOS-Kernel.git
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c280f26c1b
* Put XLEN into .o files. Makes it easier to work on voth RV32 and RV64 binaries side-by-side. * Let the debugger disable HTIF use. * Makefile now links the binary at BASE_ADDRESS I need this so I can easily generate the appropriate binaries for riscv-tests/debug. Unfortunately there doesn't seem to be any good mechanism to externally define values for lds files, so I'm running it through the C preprocessor. Co-authored-by: Joseph Julicher <jjulicher@mac.com>
89 lines
2.5 KiB
Makefile
89 lines
2.5 KiB
Makefile
XLEN ?= 32
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CROSS = riscv$(XLEN)-unknown-elf-
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CC = $(CROSS)gcc
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CPP = $(CROSS)cpp
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OBJCOPY = $(CROSS)objcopy
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ARCH = $(CROSS)ar
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DEBUG ?= 0
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BASE_ADDRESS ?= 0x80000000
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ifeq ($(XLEN), 64)
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MARCH = rv64ima
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MABI = lp64
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STACK_SIZE = 600
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else
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MARCH = rv32ima
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MABI = ilp32
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STACK_SIZE = 300
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endif
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BUILD_DIR = build
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RTOS_SOURCE_DIR = $(abspath ../../Source)
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DEMO_SOURCE_DIR = $(abspath ../Common/Minimal)
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CPPFLAGS = \
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-D__riscv_float_abi_soft \
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-DportasmHANDLE_INTERRUPT=handle_trap \
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-I . -I ../Common/include \
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-I $(RTOS_SOURCE_DIR)/include \
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-I $(RTOS_SOURCE_DIR)/portable/GCC/RISC-V \
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-I $(RTOS_SOURCE_DIR)/portable/GCC/RISC-V/chip_specific_extensions/RV32I_CLINT_no_extensions
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CFLAGS = -march=$(MARCH) -mabi=$(MABI) -mcmodel=medany \
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-Wall \
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-fmessage-length=0 \
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-ffunction-sections \
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-fdata-sections \
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-fno-builtin-printf
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ASFLAGS = -march=$(MARCH) -mabi=$(MABI) -mcmodel=medany
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LDFLAGS = -nostartfiles \
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-Xlinker --gc-sections \
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-Xlinker --defsym=__stack_size=$(STACK_SIZE)
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ifeq ($(DEBUG), 1)
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CFLAGS += -Og -ggdb3
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else
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CFLAGS += -Os
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endif
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SRCS = main.c main_blinky.c riscv-virt.c htif.c \
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$(DEMO_SOURCE_DIR)/EventGroupsDemo.c \
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$(DEMO_SOURCE_DIR)/TaskNotify.c \
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$(DEMO_SOURCE_DIR)/TimerDemo.c \
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$(DEMO_SOURCE_DIR)/blocktim.c \
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$(DEMO_SOURCE_DIR)/dynamic.c \
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$(DEMO_SOURCE_DIR)/recmutex.c \
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$(RTOS_SOURCE_DIR)/event_groups.c \
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$(RTOS_SOURCE_DIR)/list.c \
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$(RTOS_SOURCE_DIR)/queue.c \
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$(RTOS_SOURCE_DIR)/stream_buffer.c \
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$(RTOS_SOURCE_DIR)/tasks.c \
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$(RTOS_SOURCE_DIR)/timers.c \
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$(RTOS_SOURCE_DIR)/portable/MemMang/heap_4.c \
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$(RTOS_SOURCE_DIR)/portable/GCC/RISC-V/port.c
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ASMS = start.S \
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$(RTOS_SOURCE_DIR)/portable/GCC/RISC-V/portASM.S
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OBJS = $(SRCS:%.c=$(BUILD_DIR)/%$(XLEN).o) $(ASMS:%.S=$(BUILD_DIR)/%$(XLEN).o)
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DEPS = $(SRCS:%.c=$(BUILD_DIR)/%$(XLEN).d) $(ASMS:%.S=$(BUILD_DIR)/%$(XLEN).d)
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$(BUILD_DIR)/RTOSDemo$(XLEN).axf: $(OBJS) $(BUILD_DIR)/fake_rom$(BASE_ADDRESS).lds Makefile
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$(CC) $(LDFLAGS) $(OBJS) -T$(BUILD_DIR)/fake_rom$(BASE_ADDRESS).lds -o $@
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$(BUILD_DIR)/%$(XLEN).o: %.c Makefile
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@mkdir -p $(@D)
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$(CC) $(CPPFLAGS) $(CFLAGS) -MMD -MP -c $< -o $@
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$(BUILD_DIR)/%$(XLEN).o: %.S Makefile
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@mkdir -p $(@D)
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$(CC) $(CPPFLAGS) $(ASFLAGS) -MMD -MP -c $< -o $@
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# Run lds through the C preprocessor, to replace BASE_ADDRESS with the actual
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# value. It might be simpler to use sed instead.
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$(BUILD_DIR)/%$(BASE_ADDRESS).lds: fake_rom.lds Makefile
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$(CPP) $(CPPFLAGS) -DBASE_ADDRESS=$(BASE_ADDRESS) $< | grep -v '^#' > $@
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clean:
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rm -rf $(BUILD_DIR)
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-include $(DEPS)
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