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Line 14... |
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# Compiler toolchain
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# Compiler toolchain
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RISCV_PREFIX ?= riscv32-unknown-elf-
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RISCV_PREFIX ?= riscv32-unknown-elf-
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# CPU architecture and ABI
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# CPU architecture and ABI
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MARCH ?= -march=rv32i
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MARCH ?= rv32i
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MABI ?= -mabi=ilp32
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MABI ?= ilp32
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# User flags for additional configuration (will be added to compiler flags)
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# User flags for additional configuration (will be added to compiler flags)
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USER_FLAGS ?=
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USER_FLAGS ?=
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# Relative or absolute path to the NEORV32 home folder
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# Relative or absolute path to the NEORV32 home folder
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| Line 85... |
Line 85... |
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# NEORV32 executable image generator
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# NEORV32 executable image generator
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IMAGE_GEN = $(NEORV32_EXG_PATH)/image_gen
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IMAGE_GEN = $(NEORV32_EXG_PATH)/image_gen
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# Compiler & linker flags
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# Compiler & linker flags
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CC_OPTS = $(MARCH) $(MABI) $(EFFORT) -Wall -ffunction-sections -fdata-sections -nostartfiles -mno-fdiv
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CC_OPTS = -march=$(MARCH) -mabi=$(MABI) $(EFFORT) -Wall -ffunction-sections -fdata-sections -nostartfiles -mno-fdiv
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CC_OPTS += -Wl,--gc-sections -lm -lc -lgcc -lc
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CC_OPTS += -Wl,--gc-sections -lm -lc -lgcc -lc
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# This accelerates instruction fetch after branches when C extension is enabled (irrelevant when C extension is disabled)
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# This accelerates instruction fetch after branches when C extension is enabled (irrelevant when C extension is disabled)
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CC_OPTS += -falign-functions=4 -falign-labels=4 -falign-loops=4 -falign-jumps=4
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CC_OPTS += -falign-functions=4 -falign-labels=4 -falign-loops=4 -falign-jumps=4
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CC_OPTS += $(USER_FLAGS)
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CC_OPTS += $(USER_FLAGS)
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| Line 102... |
Line 102... |
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# 'compile' is still here for compatibility
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# 'compile' is still here for compatibility
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exe: $(APP_ASM) $(APP_EXE)
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exe: $(APP_ASM) $(APP_EXE)
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hex: $(APP_ASM) $(APP_HEX)
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hex: $(APP_ASM) $(APP_HEX)
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compile: $(APP_ASM) $(APP_EXE)
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compile: $(APP_ASM) $(APP_EXE)
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install: $(APP_ASM) $(APP_IMG)
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image: $(APP_ASM) $(APP_IMG)
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all: $(APP_ASM) $(APP_EXE) $(APP_IMG) $(APP_HEX)
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install: image install-$(APP_IMG)
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all: $(APP_ASM) $(APP_EXE) $(APP_IMG) $(APP_HEX) install
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# Check if making bootloader
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# Check if making bootloader
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# Use different base address and legth for instruction memory/"rom" (BOOTMEM instead of IMEM)
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# Use different base address and length for instruction memory/"rom" (BOOTROM instead of IMEM)
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# Also define "make_bootloader" for crt0.S
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# Also define "make_bootloader" symbol for crt0.S
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target bootloader: CC_OPTS += -Wl,--defsym=make_bootloader=1 -Dmake_bootloader
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target bootloader: CC_OPTS += -Wl,--defsym=make_bootloader=1 -Dmake_bootloader
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target bl_image: CC_OPTS += -Wl,--defsym=make_bootloader=1 -Dmake_bootloader
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# -----------------------------------------------------------------------------
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# -----------------------------------------------------------------------------
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# Image generator targets
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# Image generator targets
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# -----------------------------------------------------------------------------
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# -----------------------------------------------------------------------------
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| Line 172... |
Line 174... |
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# Generate NEORV32 executable VHDL boot image
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# Generate NEORV32 executable VHDL boot image
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$(APP_IMG): main.bin $(IMAGE_GEN)
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$(APP_IMG): main.bin $(IMAGE_GEN)
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@set -e
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@set -e
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@$(IMAGE_GEN) -app_img $< $@ $(shell basename $(CURDIR))
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@$(IMAGE_GEN) -app_img $< $@ $(shell basename $(CURDIR))
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install-$(APP_IMG): $(APP_IMG)
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@set -e
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@echo "Installing application image to $(NEORV32_RTL_PATH)/$(APP_IMG)"
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@echo "Installing application image to $(NEORV32_RTL_PATH)/$(APP_IMG)"
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@cp $(APP_IMG) $(NEORV32_RTL_PATH)/.
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@cp $(APP_IMG) $(NEORV32_RTL_PATH)/.
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# Generate NEORV32 executable image in plain hex format
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# Generate NEORV32 executable image in plain hex format
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$(APP_HEX): main.bin $(IMAGE_GEN)
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$(APP_HEX): main.bin $(IMAGE_GEN)
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| Line 188... |
Line 193... |
# -----------------------------------------------------------------------------
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# -----------------------------------------------------------------------------
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# Create and install bootloader VHDL init image
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# Create and install bootloader VHDL init image
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$(BOOT_IMG): main.bin $(IMAGE_GEN)
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$(BOOT_IMG): main.bin $(IMAGE_GEN)
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@set -e
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@set -e
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@$(IMAGE_GEN) -bld_img $< $(BOOT_IMG) $(shell basename $(CURDIR))
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@$(IMAGE_GEN) -bld_img $< $(BOOT_IMG) $(shell basename $(CURDIR))
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|
|
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install-$(BOOT_IMG): $(BOOT_IMG)
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@set -e
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@echo "Installing bootloader image to $(NEORV32_RTL_PATH)/$(BOOT_IMG)"
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@echo "Installing bootloader image to $(NEORV32_RTL_PATH)/$(BOOT_IMG)"
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@cp $(BOOT_IMG) $(NEORV32_RTL_PATH)/.
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@cp $(BOOT_IMG) $(NEORV32_RTL_PATH)/.
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|
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# Just an alias that
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# Just an alias
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bootloader: $(BOOT_IMG)
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bl_image: $(BOOT_IMG)
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bootloader: bl_image install-$(BOOT_IMG)
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|
|
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# -----------------------------------------------------------------------------
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# -----------------------------------------------------------------------------
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# Check toolchain
|
# Check toolchain
|
# -----------------------------------------------------------------------------
|
# -----------------------------------------------------------------------------
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| Line 265... |
Line 274... |
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|
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# -----------------------------------------------------------------------------
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# -----------------------------------------------------------------------------
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# In-console simulation using default/simple testbench and GHDL
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# In-console simulation using default/simple testbench and GHDL
|
# -----------------------------------------------------------------------------
|
# -----------------------------------------------------------------------------
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sim: $(APP_IMG)
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sim: $(APP_IMG) install
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@echo "Simulating $(APP_IMG)..."
|
@echo "Simulating $(APP_IMG)..."
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@sh $(NEORV32_SIM_PATH)/simple/ghdl.sh
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@sh $(NEORV32_SIM_PATH)/simple/ghdl.sh
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|
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# -----------------------------------------------------------------------------
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# -----------------------------------------------------------------------------
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# Show final ELF details (just for debugging)
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# Show final ELF details (just for debugging)
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| Line 288... |
Line 297... |
@echo " help - show this text"
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@echo " help - show this text"
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@echo " check - check toolchain"
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@echo " check - check toolchain"
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@echo " info - show makefile/toolchain configuration"
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@echo " info - show makefile/toolchain configuration"
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@echo " exe - compile and generate executable for upload via bootloader"
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@echo " exe - compile and generate executable for upload via bootloader"
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@echo " hex - compile and generate executable raw file"
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@echo " hex - compile and generate executable raw file"
|
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@echo " image - compile and generate VHDL IMEM boot image (for application) in local folder"
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@echo " install - compile, generate and install VHDL IMEM boot image (for application)"
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@echo " install - compile, generate and install VHDL IMEM boot image (for application)"
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@echo " sim - in-console simulation using default/simple testbench and GHDL"
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@echo " sim - in-console simulation using default/simple testbench and GHDL"
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@echo " all - exe + hex + install"
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@echo " all - exe + hex + install"
|
@echo " elf_info - show ELF layout info"
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@echo " elf_info - show ELF layout info"
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@echo " clean - clean up project"
|
@echo " clean - clean up project"
|
@echo " clean_all - clean up project, core libraries and image generator"
|
@echo " clean_all - clean up project, core libraries and image generator"
|
|
@echo " bl_image - compile and generate VHDL BOOTROM boot image (for bootloader only!) in local folder"
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@echo " bootloader - compile, generate and install VHDL BOOTROM boot image (for bootloader only!)"
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@echo " bootloader - compile, generate and install VHDL BOOTROM boot image (for bootloader only!)"
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|
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# -----------------------------------------------------------------------------
|
# -----------------------------------------------------------------------------
|
# Clean up
|
# Clean up
|
