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Makefile

## SPDX-License-Identifier: MIT OR Apache-2.0
##
## Copyright (c) 2018-2021 Andre Richter <andre.o.richter@gmail.com>
include ../utils/color.mk.in
# Default to the RPi3
BSP ?= rpi3
# BSP-specific arguments
ifeq ($(BSP),rpi3)
TARGET = aarch64-unknown-none-softfloat
KERNEL_BIN = kernel8.img
QEMU_BINARY = qemu-system-aarch64
QEMU_MACHINE_TYPE = raspi3
QEMU_RELEASE_ARGS = -serial stdio -display none
OBJDUMP_BINARY = aarch64-none-elf-objdump
NM_BINARY = aarch64-none-elf-nm
READELF_BINARY = aarch64-none-elf-readelf
LINKER_FILE = src/bsp/raspberrypi/link.ld
RUSTC_MISC_ARGS = -C target-cpu=cortex-a53
else ifeq ($(BSP),rpi4)
TARGET = aarch64-unknown-none-softfloat
KERNEL_BIN = kernel8.img
QEMU_BINARY = qemu-system-aarch64
QEMU_MACHINE_TYPE =
QEMU_RELEASE_ARGS = -serial stdio -display none
OBJDUMP_BINARY = aarch64-none-elf-objdump
NM_BINARY = aarch64-none-elf-nm
READELF_BINARY = aarch64-none-elf-readelf
LINKER_FILE = src/bsp/raspberrypi/link.ld
RUSTC_MISC_ARGS = -C target-cpu=cortex-a72
endif
# Export for build.rs
export LINKER_FILE
QEMU_MISSING_STRING = "This board is not yet supported for QEMU."
RUSTFLAGS = -C link-arg=-T$(LINKER_FILE) $(RUSTC_MISC_ARGS)
RUSTFLAGS_PEDANTIC = $(RUSTFLAGS) -D warnings -D missing_docs
FEATURES = --features bsp_$(BSP)
COMPILER_ARGS = --target=$(TARGET) \
$(FEATURES) \
--release
RUSTC_CMD = cargo rustc $(COMPILER_ARGS)
DOC_CMD = cargo doc $(COMPILER_ARGS)
CLIPPY_CMD = cargo clippy $(COMPILER_ARGS)
CHECK_CMD = cargo check $(COMPILER_ARGS)
OBJCOPY_CMD = rust-objcopy \
--strip-all \
-O binary
KERNEL_ELF = target/$(TARGET)/release/kernel
DOCKER_IMAGE = rustembedded/osdev-utils
DOCKER_CMD = docker run --rm -v $(shell pwd):/work/tutorial -w /work/tutorial
DOCKER_CMD_INTERACT = $(DOCKER_CMD) -i -t
DOCKER_QEMU = $(DOCKER_CMD_INTERACT) $(DOCKER_IMAGE)
DOCKER_TOOLS = $(DOCKER_CMD) $(DOCKER_IMAGE)
EXEC_QEMU = $(QEMU_BINARY) -M $(QEMU_MACHINE_TYPE)
.PHONY: all $(KERNEL_ELF) $(KERNEL_BIN) doc qemu clippy clean readelf objdump nm check
all: $(KERNEL_BIN)
$(KERNEL_ELF):
$(call colorecho, "\nCompiling kernel - $(BSP)")
@RUSTFLAGS="$(RUSTFLAGS_PEDANTIC)" $(RUSTC_CMD)
$(KERNEL_BIN): $(KERNEL_ELF)
@$(OBJCOPY_CMD) $(KERNEL_ELF) $(KERNEL_BIN)
doc:
$(call colorecho, "\nGenerating docs")
@$(DOC_CMD) --document-private-items --open
ifeq ($(QEMU_MACHINE_TYPE),)
qemu:
$(call colorecho, "\n$(QEMU_MISSING_STRING)")
else
qemu: $(KERNEL_BIN)
$(call colorecho, "\nLaunching QEMU")
@$(DOCKER_QEMU) $(EXEC_QEMU) $(QEMU_RELEASE_ARGS) -kernel $(KERNEL_BIN)
endif
clippy:
@RUSTFLAGS="$(RUSTFLAGS_PEDANTIC)" $(CLIPPY_CMD)
clean:
rm -rf target $(KERNEL_BIN)
readelf: $(KERNEL_ELF)
$(call colorecho, "\nLaunching readelf")
@$(DOCKER_TOOLS) $(READELF_BINARY) --headers $(KERNEL_ELF)
objdump: $(KERNEL_ELF)
$(call colorecho, "\nLaunching objdump")
@$(DOCKER_TOOLS) $(OBJDUMP_BINARY) --disassemble --demangle \
--section .text \
--section .rodata \
--section .got \
$(KERNEL_ELF) | rustfilt
nm: $(KERNEL_ELF)
$(call colorecho, "\nLaunching nm")
@$(DOCKER_TOOLS) $(NM_BINARY) --demangle --print-size $(KERNEL_ELF) | sort | rustfilt
# For rust-analyzer
check:
@RUSTFLAGS="$(RUSTFLAGS)" $(CHECK_CMD) --message-format=json