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Remove ostd/src/mm/offset.rs

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This commit is contained in:
Ruihan Li
2025-03-19 13:36:23 +08:00
committed by Tate, Hongliang Tian
parent 1a1d9bfb60
commit a1f81df263
11 changed files with 82 additions and 123 deletions
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16
kernel/libs/aster-util/src/safe_ptr.rs
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@ -410,21 +410,27 @@ impl<T, M: Debug, R> Debug for SafePtr<T, M, R> {
#[macro_export]
macro_rules! field_ptr {
($ptr:expr, $type:ty, $($field:tt)+) => {{
use ostd::offset_of;
use aster_util::safe_ptr::SafePtr;
#[inline]
fn new_field_ptr<T, M, R: Clone, U>(
container_ptr: &SafePtr<T, M, R>,
field_offset: *const U
field_offset: usize,
_type_infer: *const U,
) -> SafePtr<U, &M, R>
{
let mut ptr = container_ptr.borrow_vm();
ptr.byte_add(field_offset as usize);
ptr.byte_add(field_offset);
ptr.cast()
}
let field_offset = offset_of!($type, $($field)*);
new_field_ptr($ptr, field_offset)
let field_offset = core::mem::offset_of!($type, $($field)*);
let type_infer = ostd::ptr_null_of!({
let ptr: *const $type = core::ptr::null();
// This is not sound, but the code won't be executed.
&raw const (*ptr).$($field)*
});
new_field_ptr($ptr, field_offset, type_infer)
}}
}