Fix warnings

kernel/src/main.rs

@@ -17,8 +17,6 @@ mod panic;
 mod process;
 mod util;
 
-use core::ptr::addr_of;
-
 use arch::x86_64::interrupts::IDT;
 use arch::x86_64::serial::SerialPort;
 use boot::{BASE_REVISION, params, *};
@@ -27,13 +25,11 @@ use log::*;
 use memory::alloc::{boxed::Box, format, string::String, vec};
 use params::*;
 
-use x86_64::VirtAddr;
-use x86_64::structures::paging::PageTable;
 use lazy_static::lazy_static;
 use limine::firmware_type::FirmwareType;
 use spin::mutex::Mutex;
 
-use crate::{arch::x86_64::cpuid::{CPUID, virt_supported}, memory::{HHDM_RESPONSE, paging::{PML4, active_level_4_table, iter_table}}};
+use crate::{arch::x86_64::cpuid::{CPUID, virt_supported}, memory::HHDM_RESPONSE};
 
 lazy_static! {
     pub static ref SERIAL_3F8: Mutex<SerialPort> = Mutex::new(
@@ -74,6 +70,9 @@ unsafe extern "C" fn main() -> ! {
     // END OF CRITICAL AREA
     // Fallible code can be placed below this comment
 
+    // Initialize all statics so the bootloader memory can be reclaimed
+    memory::init_statics();
+
     // Ensure IDT exists
     IDT.load();
 
@@ -153,8 +152,9 @@ unsafe extern "C" fn main() -> ! {
     }
     log_info!("Virtualization provider: {:?}", virt_supported());
 
-    log_info!("Physical address of current L4 table: 0x{:x}", x86_64::registers::control::Cr3::read().0.start_address());
-    log_info!("Virtual address of current L4 table: 0x{:x}", x86_64::registers::control::Cr3::read().0.start_address().as_u64() + HHDM_RESPONSE.offset());
+    let l4_start = x86_64::registers::control::Cr3::read().0.start_address();
+    log_info!("Physical address of current L4 table: 0x{:x}", l4_start);
+    log_info!("Virtual address of current L4 table: 0x{:x}", l4_start.as_u64() + HHDM_RESPONSE.offset());
 
     //iter_table(4, &PML4);
 

kernel/src/memory/mod.rs

@@ -107,7 +107,7 @@ pub fn log_address() {
 }
 
 // Have to initialize all of these before reclaiming bootloader memory
-fn init_statics() {
+pub fn init_statics() {
     let _ = EXECUTABLE_FILE_RESPONSE;
     let _ = HHDM_RESPONSE;
     let _ = MODULE_RESPONSE;

kernel/src/memory/paging.rs

@@ -1,5 +1,4 @@
 
-use x86_64::PhysAddr;
 use x86_64::structures::paging::PageTable;
 use x86_64::VirtAddr;
 use lazy_static::lazy_static;
@@ -9,6 +8,7 @@ use crate::log::*;
 use crate::memory::format;
 use crate::memory::HHDM_RESPONSE;
 
+#[allow(dead_code)]
 pub unsafe fn active_level_4_table()
     -> &'static mut PageTable
 {
@@ -27,6 +27,8 @@ lazy_static! {
     pub static ref PML4: &'static mut PageTable = unsafe { active_level_4_table() };
 }
 
+// Not used right now, helpful for debugging
+#[allow(dead_code)]
 pub fn iter_table(level: usize, table: &PageTable) {
     for (i, entry) in table.iter().enumerate() {
         if !entry.is_unused() & entry.flags().contains(PageTableFlags::PRESENT) {