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https://github.com/openhwgroup/cvw
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Overhaul linux makefile
This commit is contained in:
Jordan Carlin
parent
408e7365f9
commit
2616b1c667
127
linux/Makefile
127
linux/Makefile
@ -1,27 +1,32 @@
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# .SECONDEXPANSION:
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BUILDROOT := buildroot
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IMAGES := ${BUILDROOT}/output/images
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WALLYLINUX := $(WALLY)/linux
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DIS := ${IMAGES}/disassembly
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BUILDROOT := buildroot
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IMAGE_DIR := ${BUILDROOT}/output/images
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DISASSEMBLY_DIR := ${IMAGE_DIR}/disassembly
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WALLYLINUX := $(WALLY)/linux
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BR2_EXTERNAL_TREE := $(WALLYLINUX)/br2-external-tree
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LINUX_TEST_VECTORS := $(RISCV)/linux-testvectors
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LINUX_TESTVECTORS := $(RISCV)/linux-testvectors
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# set sudo if needed depending on $RISCV
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SUDO := $(shell mkdir -p $(RISCV)/.test > /dev/null 2>&1 || echo sudo)
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BUILDROOT_OUTPUTS := Image fw_jump.bin fw_jump.elf rootfs.cpio vmlinux busybox
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# Device tree files
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DTS ?= $(wildcard devicetree/*.dts)
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DTB := $(foreach name, $(DTS:%.dts=%.dtb), $(IMAGES)/$(notdir $(name)))
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DTB := $(foreach name, $(DTS:%.dts=%.dtb), $(IMAGE_DIR)/$(notdir $(name)))
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# Disassembly stuff
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# Disassembly files
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BINARIES := fw_jump.elf vmlinux busybox
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OBJDUMPS := $(foreach name, $(basename $(BINARIES) .elf), $(DIS)/$(name).objdump)
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OBJDUMPS := $(foreach name, $(basename $(BINARIES) .elf), $(DISASSEMBLY_DIR)/$(name).objdump)
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.PHONY: all check_environment check_write_permissions config Image disassemble generate install dumptvs clean cleanDTB
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# Testvector files
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RAW_RAM_FILE := ${LINUX_TESTVECTORS}/ramGDB.bin
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RAM_FILE := ${LINUX_TESTVECTORS}/ram.bin
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RAW_BOOTMEM_FILE := ${LINUX_TESTVECTORS}/bootmemGDB.bin
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BOOTMEM_FILE := ${LINUX_TESTVECTORS}/bootmem.bin
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all: check_write_permissions clean config Image disassemble install dumptvs
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.PHONY: all check_environment check_write_permissions config build disassemble devicetrees install dumptvs clean cleanDTB
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# Default target
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all: check_write_permissions clean config build disassemble install dumptvs
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# Check if the environment variables are set correctly
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check_environment: $(RISCV)
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ifeq ($(findstring :$(RISCV)/lib:,:$(LD_LIBRARY_PATH):),)
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@(echo "ERROR: Your environment variables are not set correctly." >&2 \
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@ -29,6 +34,8 @@ ifeq ($(findstring :$(RISCV)/lib:,:$(LD_LIBRARY_PATH):),)
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&& exit 1)
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endif
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# Check if the user has write permissions to the RISCV directory, potentially using sudo
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SUDO := $(shell mkdir -p $(RISCV)/.test > /dev/null 2>&1 || echo sudo)
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check_write_permissions: check_environment
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ifeq ($(SUDO), sudo)
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@echo "Cannot write to '$(RISCV)'." \
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@ -39,31 +46,30 @@ endif
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&& exit 1)
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@$(SUDO) rm -r $(RISCV)/.test
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Image: check_environment $(BUILDROOT)
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bash -c "unset LD_LIBRARY_PATH; $(MAKE) -C $(BUILDROOT)"
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# $(MAKE) generate
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@echo "Buildroot Image successfully generated."
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# Build buildroot and device tree binaries
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build: $(BUILDROOT_OUTPUTS) devicetrees
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# Build buildroot itself
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# LD_LIBRARY_PATH must be unset to avoid conflicts between the host and cross compiler
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$(BUILDROOT_OUTPUTS): check_environment $(BUILDROOT)
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bash -c "unset LD_LIBRARY_PATH; $(MAKE) -C $(BUILDROOT)"
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# Install buildroot to $RISCV
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install: check_write_permissions
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$(SUDO) rm -rf $(RISCV)/$(BUILDROOT)
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$(SUDO) mv $(BUILDROOT) $(RISCV)/$(BUILDROOT)
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@echo "Buildroot successfully installed."
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TCP_PORT=1235
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RAW_RAM_FILE=${LINUX_TEST_VECTORS}/ramGDB.bin
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RAM_FILE=${LINUX_TEST_VECTORS}/ram.bin
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RAW_BOOTMEM_FILE=${LINUX_TEST_VECTORS}/bootmemGDB.bin
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BOOTMEM_FILE=${LINUX_TEST_VECTORS}/bootmem.bin
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# Generate linux boot testvectors
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dumptvs: ${RAM_FILE} ${BOOTMEM_FILE}
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MEM_FILES=${RAM_FILE} ${BOOTMEM_FILE}
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dumptvs: check_write_permissions ${MEM_FILES}
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${LINUX_TEST_VECTORS}/%.bin: ${LINUX_TEST_VECTORS}/%GDB.bin
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# Format QEMU memory dumps for use as testvectors
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${LINUX_TESTVECTORS}/%.bin: ${LINUX_TESTVECTORS}/%GDB.bin
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truncate -s %8 $^ # Extend file to 8 byte multiple
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objcopy --reverse-bytes=8 -F binary $^ $@ # Reverse bytes
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${LINUX_TEST_VECTORS}/%GDB.bin: | $(LINUX_TEST_VECTORS)
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# Generate memory dumps from QEMU buildroot boot
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TCP_PORT := 1235
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${LINUX_TESTVECTORS}/%GDB.bin: | $(LINUX_TESTVECTORS)
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${WALLYLINUX}/qemuBoot.sh --gdb ${TCP_PORT} &
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riscv64-unknown-elf-gdb -batch \
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-ex "target remote :${TCP_PORT}" \
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@ -72,60 +78,53 @@ ${LINUX_TEST_VECTORS}/%GDB.bin: | $(LINUX_TEST_VECTORS)
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-ex "dump binary memory ${RAW_BOOTMEM_FILE} 0x1000 0x1fff" \
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-ex "printf \"Creating ${RAW_RAM_FILE}\n\"" \
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-ex "dump binary memory ${RAW_RAM_FILE} 0x80000000 0x8fffffff" \
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-ex "kill" \
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-ex "kill"
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generate: $(DTB) $(IMAGES)
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$(IMAGES)/%.dtb: ${WALLYLINUX}/devicetree/%.dts
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# Generate device tree binaries
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devicetrees: $(DTB)
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$(IMAGE_DIR)/%.dtb: ${WALLYLINUX}/devicetree/%.dts
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dtc -I dts -O dtb $< > $@
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$(IMAGES):
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@ echo "No output/images directory in buildroot."
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@ echo "Run make --jobs in buildroot directory before generating device tree binaries."; exit 1
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# Create disassembly files
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disassemble: check_environment $(OBJDUMPS) $(DISASSEMBLY_DIR)/rootfs
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$(RISCV):
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@ echo "ERROR: No $(RISCV) directory. Make sure you have installed the Wally Toolchain."
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@ echo "and sourced setup.sh"
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# Disassembly rules ---------------------------------------------------
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disassemble: check_environment
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cp $(BUILDROOT)/output/build/linux-*/vmlinux $(IMAGES)
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$(MAKE) $(OBJDUMPS) $(DIS)/rootfs
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$(DIS)/rootfs: $(IMAGES)/rootfs.cpio
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# Extract rootfs
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$(DISASSEMBLY_DIR)/rootfs: $(IMAGE_DIR)/rootfs.cpio
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@echo "Ignore error about dev/console when extracting rootfs from rootfs.cpio"
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mkdir -p $(DIS)/rootfs
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-cpio -i -D $(DIS)/rootfs < $(IMAGES)rootfs.cpio
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mkdir -p $(DISASSEMBLY_DIR)/rootfs
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-cpio -i -D $(DISASSEMBLY_DIR)/rootfs -F $(IMAGE_DIR)rootfs.cpio
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$(DIS)/%.objdump: $(IMAGES)/%.elf | $(DIS)
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riscv64-unknown-elf-objdump -DS $< >> $@
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# Disassemble binaries
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objdump_flags = $(if $(findstring .elf,$<),-SD,-S) # Add -D flag for .elf files
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$(DISASSEMBLY_DIR)/%.objdump: $(IMAGE_DIR)/% | $(DISASSEMBLY_DIR)
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riscv64-unknown-elf-objdump $(objdump_flags) $< >> $@
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$(WALLY)/bin/extractFunctionRadix.sh $@
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$(DIS)/%.objdump: $(IMAGES)/% | $(DIS)
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riscv64-unknown-elf-objdump -S $< >> $@
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$(WALLY)/bin/extractFunctionRadix.sh $@
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$(IMAGES)/vmlinux:
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cp $(BUILDROOT)/output/build/linux-*/vmlinux $@
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$(IMAGES)/busybox:
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cp $(BUILDROOT)/output/build/busybox-*/busybox $@
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# Load wally buildroot configuration
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config: $(BUILDROOT) $(BR2_EXTERNAL_TREE)/configs/wally_defconfig
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$(MAKE) -C $(BUILDROOT) wally_defconfig BR2_EXTERNAL=$(BR2_EXTERNAL_TREE)
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# Clone buildroot and checkout the correct version
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$(BUILDROOT):
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git clone https://github.com/buildroot/buildroot.git $@
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cd $@; git checkout 2024.11.x
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$(LINUX_TEST_VECTORS):
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# Create directories
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$(LINUX_TESTVECTORS): check_write_permissions
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$(SUDO) mkdir -p $@
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$(DIS):
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$(DISASSEMBLY_DIR):
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mkdir -p $@
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# Remove device tree binaries
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cleanDTB:
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rm -f $(IMAGES)/*.dtb
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rm -f $(IMAGE_DIR)/*.dtb
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# Remove buildroot directory
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clean:
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rm -rf $(BUILDROOT)
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# Check if the RISCV environment variable is set
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$(RISCV):
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@ echo "ERROR: No $(RISCV) directory. Make sure you have installed the Wally Toolchain."
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@ echo "and sourced setup.sh"
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@ -35,7 +35,7 @@ The device tree files for the various FPGAs Wally supports, as well as QEMU's de
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They are built automatically using the main `make` command. To build the device tree binaries (.dtb) from the device tree sources (.dts) separately, we can build all of them at once using:
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```bash
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$ make generate # optionally override BUILDROOT
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$ make devicetrees # optionally override BUILDROOT
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```
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The .dts files will end up in the `<BUILDROOT>/output/images` folder of your chosen buildroot directory.
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5
linux/br2-external-tree/board/wally/post_image.sh
Normal file
5
linux/br2-external-tree/board/wally/post_image.sh
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@ -0,0 +1,5 @@
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#!/bin/sh
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# Copy linux and busybox binaries (with symbol info) to images directory
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cp "$BUILD_DIR"/linux-*/vmlinux "$BINARIES_DIR"/vmlinux
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cp "$BUILD_DIR"busybox-*/busybox "$BINARIES_DIR"/busybox
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@ -19,6 +19,7 @@ BR2_TARGET_GENERIC_ISSUE="Greetings! This RISC-V Linux image was built for Wally
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BR2_ROOTFS_DEVICE_TABLE_SUPPORTS_EXTENDED_ATTRIBUTES=y
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BR2_SYSTEM_DHCP="eth0"
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BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL_WALLY_PATH)/board/wally/rootfs_overlay"
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BR2_ROOTFS_POST_IMAGE_SCRIPT="$(BR2_EXTERNAL_WALLY_PATH)/board/wally/post_image.sh"
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BR2_LINUX_KERNEL=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION=y
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BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="6.12.8"
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