misc: Cleanup warnings

Signed-off-by: Esteban Blanc <[email protected]>

aarch64_qemuvirt/src/main.rs

@@ -37,6 +37,4 @@ extern "C" fn k_main(_device_tree_ptr: usize) -> ! {
     let device_tree = kernel::device_tree::DeviceTree::new(DTB_ADDR).unwrap();
 
     kernel::generic_main::generic_main::<LAUNCH_TESTS>(device_tree, &[&PL011]);
-
-    unreachable!();
 }

hal_aarch64/src/lib.rs

@@ -1,5 +1,4 @@
 #![no_std]
-#![feature(once_cell)]
 #![feature(naked_functions)]
 
 use cortex_a::registers::*;
@@ -13,6 +12,7 @@ pub mod mm;
 
 mod devices;
 
+#[allow(dead_code)]
 #[derive(Debug)]
 pub struct PanicInfo {
     esr_el1: u64,

hal_riscv64/src/irq.rs

@@ -7,8 +7,6 @@ use super::mm;
 use super::plic::Plic;
 use super::registers;
 
-use riscv::asm::delay;
-
 use core::arch::asm;
 use core::ptr;
 use core::sync::atomic::{AtomicPtr, Ordering};

hal_riscv64/src/lib.rs

@@ -1,7 +1,6 @@
 #![no_std]
 #![feature(fn_align)]
 #![feature(naked_functions)]
-#![feature(once_cell)]
 
 pub mod cpu;
 pub mod irq;

hal_riscv64/src/mm/mod.rs

@@ -2,7 +2,7 @@ use core::arch::asm;
 use core::cell::OnceCell;
 
 use hal_core::{
-    mm::{self, PageAllocFn, PageMap, Permissions, VAddr},
+    mm::{PageAllocFn, PageMap},
     Error, Range,
 };
 

hal_riscv64/src/mm/sv39.rs

@@ -1,5 +1,3 @@
-use core::arch::asm;
-use core::convert::TryInto;
 use modular_bitfield::{bitfield, prelude::*};
 
 use hal_core::mm::{self, PageAllocFn, PageEntry, PageMap};
@@ -93,9 +91,13 @@ impl PAddr {
 #[bitfield]
 pub struct PageTableEntry {
     v: B1,
+    #[skip(getters)]
     r: B1,
+    #[skip(getters)]
     w: B1,
+    #[skip(getters)]
     x: B1,
+    #[skip(getters)]
     u: B1,
     #[skip]
     g: B1,
@@ -222,7 +224,7 @@ impl PageMap for PageTable {
 
 #[repr(u8)]
 pub(crate) enum SatpMode {
-    Bare = 0,
+    _Bare = 0,
     Sv39 = 8,
     _Sv48 = 9,
     _Sv57 = 10,

hal_riscv64/src/plic.rs

@@ -9,8 +9,6 @@ const PLIC_NUMBER_SOURCE_REGISTER: u16 =
 const PLIC_MAX_CONTEXT: u16 = 0x3e00;
 const PLIC_CLAIM_OFFSET: usize = 0x201004;
 
-static mut PLIC: Option<Plic> = None;
-
 pub struct Plic {
     base_register_address: usize,
 }

kernel/Cargo.toml

@@ -18,9 +18,9 @@ goblin = { version = "0.6", default-features = false, features = ["elf64"] }
 qemu-exit = "3.0"
 hal_core = { path = "../hal_core" }
 arrayvec = { version = "0.7", default-features = false }
-tests = { path = "../tests", artifact = "bin" }
 align-data = "0.1"
 log = "0.4"
+tests = { path = "../tests", artifact = "bin" }
 
 [dev-dependencies]
 

kernel/src/error.rs

@@ -1,25 +1,16 @@
 use super::mm;
 
-use crate::utils::init_once;
-
 #[derive(Debug)]
 pub enum Error {
     DeviceNotFound(&'static str),
     NoMatchingDriver(&'static str),
     InvalidFdtNode,
     FdtError(fdt::FdtError),
-    InitOnce(init_once::Error),
     Allocator(mm::AllocatorError),
     Hal(hal_core::Error),
     SetLoggerError(log::SetLoggerError),
 }
 
-impl From<init_once::Error> for Error {
-    fn from(e: init_once::Error) -> Self {
-        Self::InitOnce(e)
-    }
-}
-
 impl From<fdt::FdtError> for Error {
     fn from(e: fdt::FdtError) -> Self {
         Self::FdtError(e)

kernel/src/globals.rs

@@ -2,13 +2,6 @@ use crate::lock::Lock;
 
 use crate::mm;
 
-use crate::drivers;
-use crate::utils;
-use utils::init_cell::InitCell;
-use utils::init_once::InitOnce;
-
-use alloc::sync::Arc;
-
 pub static PHYSICAL_MEMORY_MANAGER: Lock<mm::PhysicalMemoryManager> =
     Lock::new(mm::PhysicalMemoryManager::new());
 

kernel/src/kernel_console.rs

@@ -5,7 +5,7 @@ use crate::Error;
 
 use alloc::sync::Arc;
 
-use log::{error, Level, LevelFilter, Metadata, Record};
+use log::{Level, LevelFilter, Metadata, Record};
 use spin::Mutex;
 
 struct KernelConsole {

kernel/src/tests.rs

@@ -3,7 +3,6 @@ use log::{debug, info, trace};
 use core::slice;
 use core::sync::atomic::{AtomicUsize, Ordering};
 
-use super::drivers::{pl011::Pl011, Console};
 use crate::executable::elf::Elf;
 use crate::hal;
 use crate::mm::{alloc_pages, alloc_pages_for_hal};

kernel/src/utils/mod.rs

@@ -1,10 +1,5 @@
-pub mod init_cell;
-pub mod init_once;
 pub mod lock;
 
-// pub use init_cell;
-// pub use lock;
-
 pub fn external_symbol_value<T>(sym: &T) -> usize {
     (sym as *const T) as usize
 }

riscv64_qemuvirt/src/main.rs

@@ -1,19 +1,11 @@
 #![no_std]
 #![no_main]
 #![feature(naked_functions)]
-// #![feature(custom_test_frameworks)]
-// #![test_runner(kernel::super::kernel_tests::runner)]
-// #![reexport_test_harness_main = "ktests_launch"]
 
 #[cfg(not(target_arch = "riscv64"))]
 compile_error!("Must be compiled as riscv64");
 
-use core::arch::asm;
 use kernel::drivers::ns16550::*;
-use kernel::drivers::qemuexit::QemuExit;
-use kernel::executable::elf::Elf;
-
-use align_data::{include_aligned, Align4K};
 
 use log::info;
 
@@ -31,18 +23,8 @@ extern "C" fn k_main(_core_id: usize, device_tree_ptr: usize) -> ! {
 
     info!("GoOSe is booting");
 
-    // #[cfg(test)]
-    // {
-    //     kernel::kernel_tests::init(device_tree_ptr);
-    //     ktests_launch();
-    // }
-
-    unsafe {
-        kernel::hal::irq::init_exception_handlers();
-    }
+    kernel::hal::irq::init_exception_handlers();
 
     let device_tree = kernel::device_tree::DeviceTree::new(device_tree_ptr).unwrap();
     kernel::generic_main::generic_main::<LAUNCH_TESTS>(device_tree, &[&NS16550]);
-
-    unreachable!();
 }