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ALLOCATOR: misc

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able 2023-05-28 02:01:11 -05:00
parent bb3c1b6120
commit 8eebd50179
1 changed files with 10 additions and 4 deletions
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12
kernel/src/allocator.rs
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@ -150,7 +150,8 @@ impl Heap {
#[cfg(debug_assertions)] #[cfg(debug_assertions)]
trace!("Allocating {:?}", ptr); trace!("Allocating {:?}", ptr);
} }
// FIXME: zero or scrub memory? // FIXME: zero out memory to prevent leaking data
assert!(ptr.is_aligned_to(alignment)); assert!(ptr.is_aligned_to(alignment));
NonNull::new(ptr) NonNull::new(ptr)
} }
@ -166,7 +167,7 @@ impl Heap {
let size = unsafe { (*header).size_in_chunks }; let size = unsafe { (*header).size_in_chunks };
self.bitmap_set_range(start, size, false); self.bitmap_set_range(start, size, false);
self.allocated_chunks -= size; self.allocated_chunks -= size;
// FIXME: zero or scrub memory? // FIXME: zero out memory to prevent leaking data
} }
/// Finds first hole that can fit an allocation of `size` chunks, returns the start of the /// Finds first hole that can fit an allocation of `size` chunks, returns the start of the
@ -248,7 +249,10 @@ impl Heap {
return Some(start_of_free_chunks); return Some(start_of_free_chunks);
} }
} }
#[cfg(debug_assertions)]
{
trace!("No first fit found"); trace!("No first fit found");
}
None None
} }
@ -334,6 +338,8 @@ impl Heap {
unsafe impl Send for Heap {} unsafe impl Send for Heap {}
#[alloc_error_handler] #[alloc_error_handler]
fn alloc_error_handler(_layout: alloc::alloc::Layout) -> ! { fn alloc_error_handler(layout: alloc::alloc::Layout) -> ! {
log::error!("allocation error: {:?}", layout);
// Todo: Maybe panic here instead
crate::arch::sloop() crate::arch::sloop()
} }