312551018 Lab2

.gitignore

@@ -90,4 +90,6 @@ hw0/
 *.elf
 *.img
 target/
-kernel*.img
+kernel*.img
+
+initramfs.cpio

bootloader/Cargo.toml

@@ -0,0 +1,29 @@
+[package]
+name = "bootloader"
+version = "0.1.0"
+authors = ["HelloHomework"]
+edition = "2021"
+
+[[bin]]
+name = "bootloader"
+path = "src/main.rs"
+test = false
+bench = false
+
+[lib]
+test = false
+
+#[toolchain]
+#channel = "nightly"
+
+[features]
+default = ["tock-registers"]
+
+[workspace]
+resolver = "2"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+aarch64-cpu = "9.4.0"
+tock-registers = { version = "0.8.x", default-features = false, features = ["register_types"], optional = true }

bootloader/Makefile

@@ -0,0 +1,127 @@
+## SPDX-License-Identifier: MIT OR Apache-2.0
+##
+## Copyright (c) 2018-2023 Andre Richter <andre.o.richter@gmail.com>
+##
+## This file is part of the `rust-raspberrypi-OS-tutorials` project.
+## https://github.com/rust-embedded/rust-raspberrypi-OS-tutorials/
+##
+##--------------------------------------------------------------------------------------------------
+## Optional, user-provided configuration values
+##--------------------------------------------------------------------------------------------------
+
+# BSP ?= rpi3
+TARGET            = aarch64-unknown-none-softfloat
+KERNEL_BIN        = bootloader.img
+QEMU_BINARY       = qemu-system-aarch64
+QEMU_MACHINE_TYPE = raspi3
+QEMU_RELEASE_ARGS = -display none -d in_asm
+
+# LD_SCRIPT_PATH    = src/
+# LD_SCRIPT_NAME    = linker.ld
+LD_SCRIPT_NAME    = kernel.ld
+
+# LD_SCRIPT_PATH    = $(shell pwd)/src/bsp/raspberrypi
+LD_SCRIPT_PATH    = src/
+KERNEL_LINKER_SCRIPT = $(LD_SCRIPT_PATH)bsp/rpi3/$(LD_SCRIPT_NAME)
+
+
+RUSTC_MISC_ARGS   = -C target-cpu=cortex-a53
+
+# Export for build.rs.
+export LD_SCRIPT_PATH
+
+
+
+##--------------------------------------------------------------------------------------------------
+## Targets and Prerequisites
+##--------------------------------------------------------------------------------------------------
+KERNEL_MANIFEST      = Cargo.toml
+# KERNEL_LINKER_SCRIPT = kernel.ld
+LAST_BUILD_CONFIG    = target/$(BSP).build_config
+
+KERNEL_ELF			= target/$(TARGET)/debug/bootloader
+# KERNEL_ELF      = target/$(TARGET)/release/kernel
+# This parses cargo's dep-info file.
+# https://doc.rust-lang.org/cargo/guide/build-cache.html#dep-info-files
+KERNEL_ELF_DEPS = $(filter-out %: ,$(file < $(KERNEL_ELF).d)) $(KERNEL_MANIFEST) $(LAST_BUILD_CONFIG)
+
+
+
+##--------------------------------------------------------------------------------------------------
+## Command building blocks
+##--------------------------------------------------------------------------------------------------
+RUSTFLAGS = $(RUSTC_MISC_ARGS)                   \
+    -C link-arg=--library-path=$(LD_SCRIPT_PATH) \
+    -C link-arg=--script=$(KERNEL_LINKER_SCRIPT)
+
+RUSTFLAGS_PEDANTIC = $(RUSTFLAGS) \
+    -D warnings                   \
+    -D missing_docs
+
+# FEATURES      = --features bsp_$(BSP)
+COMPILER_ARGS = --target=$(TARGET) \
+# --release
+    # $(FEATURES)\                    
+
+
+RUSTC_CMD   = cargo rustc $(COMPILER_ARGS)
+# RUSTC_CMD   = cargo miri $(COMPILER_ARGS)
+OBJCOPY_CMD = rust-objcopy \
+    --strip-all            \
+    -O binary
+
+##--------------------------------------------------------------------------------------------------
+## Targets
+##--------------------------------------------------------------------------------------------------
+
+all: $(KERNEL_BIN)
+
+##------------------------------------------------------------------------------
+## Save the configuration as a file, so make understands if it changed.
+##------------------------------------------------------------------------------
+$(LAST_BUILD_CONFIG):
+	@rm -f target/*.build_config
+	@mkdir -p target
+	@touch $(LAST_BUILD_CONFIG)
+
+##------------------------------------------------------------------------------
+## Compile the kernel ELF
+##------------------------------------------------------------------------------
+$(KERNEL_ELF): $(KERNEL_ELF_DEPS)
+# $(call color_header, "Compiling kernel ELF - $(BSP)")
+	@RUSTFLAGS="$(RUSTFLAGS)" $(RUSTC_CMD)
+
+##------------------------------------------------------------------------------
+## Generate the stripped kernel binary
+##------------------------------------------------------------------------------
+$(KERNEL_BIN): $(KERNEL_ELF)
+	$(call color_header, "Generating stripped binary")
+	@$(OBJCOPY_CMD) $(KERNEL_ELF) $(KERNEL_BIN)
+	$(call color_progress_prefix, "Name")
+	@echo $(KERNEL_BIN)
+	$(call color_progress_prefix, "Size")
+	$(call disk_usage_KiB, $(KERNEL_BIN))
+
+
+##------------------------------------------------------------------------------
+## Debug
+##------------------------------------------------------------------------------
+debug:
+# qemu-system-aarch64 -M raspi3b -kernel $(KERNEL_BIN) -display none -serial null -serial stdio
+# qemu-system-aarch64 -M raspi3b -kernel $(KERNEL_BIN) -display none -serial stdio
+	qemu-system-aarch64 -M raspi3b -kernel $(KERNEL_BIN) \
+	-display none -serial null -serial pty \
+	-dtb ../resources/bcm2710-rpi-3-b-plus.dtb \
+	-initrd ../resources/initramfs.cpio	
+
+# debug:
+# 	qemu-system-aarch64 -M raspi3b -kernel $(KERNEL_BIN) \
+# 	-display none -serial null -serial pty \
+# 	-dtb ../resources/bcm2710-rpi-3-b-plus.dtb \
+# 	-initrd ../resources/initramfs.cpio	
+
+##------------------------------------------------------------------------------
+## Clean
+##------------------------------------------------------------------------------
+clean:
+	rm -rf target $(KERNEL_BIN)

bootloader/src/arrsting.rs

@@ -0,0 +1,51 @@
+// #[derive(PartialEq)]
+const MAXIUM_LEN: usize = 256;
+pub struct ArrString {
+    data: [u8; MAXIUM_LEN], // maxium size MAXIUM_LEN
+    len: usize,
+}
+
+#[allow(dead_code)]
+impl ArrString {
+    pub fn new(s: &str) -> Self {
+        let mut data: [u8; MAXIUM_LEN] = [0; MAXIUM_LEN];
+        for (index, c) in s.chars().enumerate() {
+            data[index] = c as u8;
+        }
+        ArrString {
+            data: data,
+            len: s.len(),
+        }
+    }
+
+    pub fn get_len(&self) -> usize {
+        self.len
+    }
+
+    pub fn get_data(&self) -> [u8 ;MAXIUM_LEN] {
+        self.data
+    }
+
+    pub fn clean_buf(&mut self) {
+        for x in self.data.as_mut() {
+            *x = 0 as u8;
+        }
+        self.len = 0;
+    }
+
+    pub fn push_char(&mut self, c: char) {
+        self.data[self.len] = c as u8;
+        self.len += 1;
+    }
+
+    fn compare(&self, other: &Self) -> bool {
+        self.data.starts_with(&other.data)
+    }
+}
+
+#[allow(dead_code)]
+impl PartialEq for ArrString {
+    fn eq(&self, other: &Self) -> bool {
+        self.compare(other)
+    }
+}

bootloader/src/bsp/device_driver.rs

@@ -0,0 +1,4 @@
+mod bcm;
+mod common;
+
+pub use bcm::*;

bootloader/src/bsp/device_driver/bcm.rs

@@ -0,0 +1,10 @@
+mod bcm2xxx_gpio;
+// mod bcm2xxx_pl011_uart;
+mod bcm2xxx_mini_uart;
+mod bcm2xxx_mbox;
+
+
+pub use bcm2xxx_gpio::*;
+// pub use bcm2xxx_pl011_uart::*;
+pub use bcm2xxx_mini_uart::*;
+pub use bcm2xxx_mbox::*;