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Add mutable functionality to the process VMAR

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This commit is contained in:
Chen Chengjun
2025-03-17 10:53:56 +08:00
committed by Tate, Hongliang Tian
parent 248b24fb4e
commit 2a20f6b59a
15 changed files with 119 additions and 63 deletions
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12
kernel/src/process/posix_thread/thread_local.rs
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@ -2,10 +2,11 @@
use core::cell::{Cell, RefCell};
use aster_rights::Full;
use ostd::{mm::Vaddr, sync::RwArc, task::CurrentTask};
use super::RobustListHead;
use crate::{fs::file_table::FileTable, process::signal::SigStack};
use crate::{fs::file_table::FileTable, process::signal::SigStack, vm::vmar::Vmar};
/// Local data for a POSIX thread.
pub struct ThreadLocal {
@ -14,6 +15,9 @@ pub struct ThreadLocal {
set_child_tid: Cell<Vaddr>,
clear_child_tid: Cell<Vaddr>,
// Virtual memory address regions.
root_vmar: RefCell<Option<Vmar<Full>>>,
// Robust futexes.
// https://man7.org/linux/man-pages/man2/get_robust_list.2.html
robust_list: RefCell<Option<RobustListHead>>,
@ -34,11 +38,13 @@ impl ThreadLocal {
pub(super) fn new(
set_child_tid: Vaddr,
clear_child_tid: Vaddr,
root_vmar: Option<Vmar<Full>>,
file_table: RwArc<FileTable>,
) -> Self {
Self {
set_child_tid: Cell::new(set_child_tid),
clear_child_tid: Cell::new(clear_child_tid),
root_vmar: RefCell::new(root_vmar),
robust_list: RefCell::new(None),
file_table: RefCell::new(file_table),
sig_context: Cell::new(None),
@ -54,6 +60,10 @@ impl ThreadLocal {
&self.clear_child_tid
}
pub fn root_vmar(&self) -> &RefCell<Option<Vmar<Full>>> {
&self.root_vmar
}
pub fn robust_list(&self) -> &RefCell<Option<RobustListHead>> {
&self.robust_list
}