totally didn't import an allocator...

Cargo.lock

@@ -57,6 +57,10 @@ dependencies = [
 [[package]]
 name = "lib_alloc"
 version = "0.1.0"
+dependencies = [
+ "linked_list_allocator",
+ "x86_64",
+]
 
 [[package]]
 name = "lib_application"
@@ -101,6 +105,15 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "linked_list_allocator"
+version = "0.10.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9afa463f5405ee81cdb9cc2baf37e08ec7e4c8209442b5d72c04cfb2cd6e6286"
+dependencies = [
+ "spinning_top",
+]
+
 [[package]]
 name = "lock_api"
 version = "0.4.12"
@@ -153,6 +166,15 @@ dependencies = [
  "lock_api",
 ]
 
+[[package]]
+name = "spinning_top"
+version = "0.2.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5b9eb1a2f4c41445a3a0ff9abc5221c5fcd28e1f13cd7c0397706f9ac938ddb0"
+dependencies = [
+ "lock_api",
+]
+
 [[package]]
 name = "volatile"
 version = "0.4.6"

kernel/src/arch/x86_64/memory.rs

@@ -9,9 +9,6 @@ use x86_64::{
     PhysAddr, VirtAddr,
 };
 
-#[global_allocator]
-static ALLOCATOR: FoundryAllocator = FoundryAllocator;
-
 /// Returns a mutable reference to the current level 4 page table.
 ///
 /// # Safety

kernel/src/lib.rs

@@ -4,6 +4,7 @@
 extern crate alloc;
 
 use core::arch::asm;
+use lib_alloc::allocator::init_heap;
 use limine::request::{RequestsEndMarker, RequestsStartMarker};
 use limine::BaseRevision;
 
@@ -67,7 +68,9 @@ pub fn boot() -> Result<(), &'static str> {
     x86_64::instructions::interrupts::enable();
 
     let physical_memory_offset = VirtAddr::new(*memmap::PHYSICAL_MEMORY_OFFSET);
-    let l4_table = unsafe { memory::init(physical_memory_offset) };
+    let mut l4_table = unsafe { memory::init(physical_memory_offset) };
+
+    init_heap(&mut l4_table, &mut frame_allocator);
 
     Ok(())
 }

kernel/src/main.rs

@@ -1,6 +1,10 @@
 #![no_std]
 #![no_main]
 
+extern crate alloc;
+
+use alloc::vec::Vec;
+
 use foundry_os::{println, println_log};
 
 #[no_mangle]
@@ -40,5 +44,11 @@ unsafe extern "C" fn kmain() -> ! {
     "
     );
 
+    let mut vec = Vec::new();
+    for i in 0..100 {
+        vec.push(i);
+    }
+    println!("{:?}", vec);
+
     loop {}
 }