Function init_heap

kernel/src/memory/allocator.rs:21–38

(
    mapper: &mut impl Mapper<Size4KiB>,
    frame_allocator: &mut impl FrameAllocator<Size4KiB>,
)

use crate::memory;

pub fn init_heap(
    mapper: &mut impl Mapper<Size4KiB>,
    frame_allocator: &mut impl FrameAllocator<Size4KiB>,
) -> Result<(), MapToError<Size4KiB>> {

    memory::allocate_pages_mapper(
        frame_allocator,
        mapper,
        VirtAddr::new(HEAP_START as u64),
        HEAP_SIZE as u64,
        PageTableFlags::PRESENT | PageTableFlags::WRITABLE)?;

    unsafe {
        ALLOCATOR.lock().init(HEAP_START as *mut u8, HEAP_SIZE);
    }

    Ok(())
}

use linked_list_allocator::LockedHeap;