Merge pull request #10 from sdslabs/update

update dependency crates to newer versions and make accommodating changes

.github/workflows/kernel.yaml

@@ -22,7 +22,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2020-12-07
+          toolchain: nightly-2021-12-07
       - name: Install `rust-src` Rustup Component
         run: rustup component add rust-src
       - name: Run `cargo build`
@@ -38,7 +38,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2020-12-07
+          toolchain: nightly-2021-12-07
       - name: Checkout Repository
         uses: actions/checkout@v2
       - name: Install Rustup Components
@@ -64,7 +64,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2020-12-07
+          toolchain: nightly-2021-12-07
           components: rustfmt
           override: true
       - name: Run `cargo fmt`
@@ -83,7 +83,7 @@ jobs:
         uses: actions-rs/toolchain@v1
         with:
           profile: minimal
-          toolchain: nightly-2020-12-07
+          toolchain: nightly-2021-12-07
           components: clippy, rust-src
           override: true
       - name: Run `cargo clippy`

.gitignore

@@ -2,12 +2,11 @@
 # will have compiled files and executables
 /target/
 
-# Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
-# More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
-
 # These are backup files generated by rustfmt
 **/*.rs.bk
 
 # Remove generated binaries
-/kernel/target/**
+/kernel/target/**
+
+# Remove code editor files
+.vscode

Makefile

@@ -10,7 +10,7 @@ default: help
 
 ## install: Install toolchain dependencies
 install:
-	@rustup override set nightly-2020-12-07
+	@rustup override set nightly-2021-12-07
 	@rustup component add rust-src
 	@rustup component add llvm-tools-preview
 	@rustup component add clippy
@@ -49,4 +49,4 @@ kernel_run:
 help: Makefile
 	@printf "\nRusticOS, Lightweight OS implementation in Rust\n\n"
 	@sed -n 's/^##//p' $< | column -t -s ':' |  sed -e 's/^/ /'
-	@printf "\nDo check out the code at https://github.com/sdslabs/rusticos\n\n"
+	@printf "\nDo check out the code at https://github.com/sdslabs/rusticos\n\n"

README.md

@@ -45,7 +45,7 @@ Open your favourite terminal and perform the following tasks:-
     Do check out the code at https://github.com/sdslabs/rusticos
     ```
 
-1. Run `make install` to install the necessary toolchain dependencies and change Rust version to nightly-2020-12-07.
+1. Run `make install` to install the necessary toolchain dependencies and change Rust version to nightly-2021-12-07.
 
     > This is necessary to enable some of the dependency crates
 

kernel/Cargo.toml

@@ -10,11 +10,11 @@ edition = "2018"
 bootloader = { version = "0.9.8", features = ["map_physical_memory"]}
 volatile = "0.2.6"
 spin = "0.5.2"
-x86_64 = "0.13.6"
+x86_64 = "0.14.2"
 uart_16550 = "0.2.0"
-pic8259_simple = "0.2.0"
+pic8259 = "0.10.1"
 pc-keyboard = "0.5.0"
-linked_list_allocator = "0.8.0"
+linked_list_allocator = "0.9.0"
 
 [dependencies.lazy_static]
 version = "1.0"

kernel/src/allocator/fixed_size_block.rs

@@ -14,8 +14,9 @@ pub struct FixedSizeBlockAllocator {
 
 impl FixedSizeBlockAllocator {
     pub const fn new() -> Self {
+        const EMPTY: Option<&'static mut ListNode> = None;
         FixedSizeBlockAllocator {
-            list_heads: [None; BLOCK_SIZES.len()],
+            list_heads: [EMPTY; BLOCK_SIZES.len()],
             fallback_allocator: linked_list_allocator::Heap::empty(),
         }
     }

kernel/src/interrupts/mod.rs

@@ -1,6 +1,6 @@
 use crate::{gdt, print, println};
 use lazy_static::lazy_static;
-use pic8259_simple::ChainedPics;
+use pic8259::ChainedPics;
 use spin;
 use x86_64::structures::idt::{InterruptDescriptorTable, InterruptStackFrame};
 
@@ -49,18 +49,18 @@ pub fn init_idt() {
     IDT.load();
 }
 
-extern "x86-interrupt" fn breakpoint_handler(stack_frame: &mut InterruptStackFrame) {
+extern "x86-interrupt" fn breakpoint_handler(stack_frame: InterruptStackFrame) {
     println!("EXCEPTION: BREAKPOINT\n{:#?}", stack_frame);
 }
 
 extern "x86-interrupt" fn double_fault_handler(
-    stack_frame: &mut InterruptStackFrame,
+    stack_frame: InterruptStackFrame,
     _error_code: u64,
 ) -> ! {
     panic!("EXCEPTION: DOUBLE FAULT\n{:#?}", stack_frame);
 }
 
-extern "x86-interrupt" fn timer_interrupt_handler(_stack_frame: &mut InterruptStackFrame) {
+extern "x86-interrupt" fn timer_interrupt_handler(_stack_frame: InterruptStackFrame) {
     print!(".");
     unsafe {
         PICS.lock()
@@ -69,7 +69,7 @@ extern "x86-interrupt" fn timer_interrupt_handler(_stack_frame: &mut InterruptSt
 }
 
 extern "x86-interrupt" fn general_protection_fault_handler(
-    stack_frame: &mut InterruptStackFrame,
+    stack_frame: InterruptStackFrame,
     error_code: u64,
 ) {
     println!(
@@ -78,7 +78,7 @@ extern "x86-interrupt" fn general_protection_fault_handler(
     );
 }
 
-extern "x86-interrupt" fn keyboard_interrupt_handler(_stack_frame: &mut InterruptStackFrame) {
+extern "x86-interrupt" fn keyboard_interrupt_handler(_stack_frame: InterruptStackFrame) {
     use pc_keyboard::{layouts, HandleControl, Keyboard, ScancodeSet1};
     use spin::Mutex;
     use x86_64::instructions::port::Port;
@@ -105,7 +105,7 @@ use crate::hlt_loop;
 use x86_64::structures::idt::PageFaultErrorCode;
 
 extern "x86-interrupt" fn page_fault_handler(
-    stack_frame: &mut InterruptStackFrame,
+    stack_frame: InterruptStackFrame,
     error_code: PageFaultErrorCode,
 ) {
     use x86_64::registers::control::Cr2;