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Create threads with a argument. See bin/threads_arg.rs

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This commit is contained in:
Yifan Wu 2021-10-08 13:50:36 -07:00
parent c951c1781e
commit 5b56961b8c
11 changed files with 59 additions and 19 deletions
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2
os/src/syscall/mod.rs
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@ -45,7 +45,7 @@ pub fn syscall(syscall_id: usize, args: [usize; 3]) -> isize {
SYSCALL_FORK => sys_fork(),
SYSCALL_EXEC => sys_exec(args[0] as *const u8, args[1] as *const usize),
SYSCALL_WAITPID => sys_waitpid(args[0] as isize, args[1] as *mut i32),
SYSCALL_THREAD_CREATE => sys_thread_create(args[0]),
SYSCALL_THREAD_CREATE => sys_thread_create(args[0], args[1]),
SYSCALL_GETTID => sys_gettid(),
SYSCALL_WAITTID => sys_waittid(args[0]) as isize,
SYSCALL_MUTEX_CREATE => sys_mutex_create(args[0] == 1),

3
os/src/syscall/thread.rs
View file

@ -1,7 +1,7 @@
use alloc::sync::Arc;
use crate::{mm::kernel_token, task::{TaskControlBlock, add_task, current_task}, trap::{TrapContext, trap_handler}};
pub fn sys_thread_create(entry: usize) -> isize {
pub fn sys_thread_create(entry: usize, arg: usize) -> isize {
let task = current_task().unwrap();
let process = task.process.upgrade().unwrap();
// create a new thread
@ -30,6 +30,7 @@ pub fn sys_thread_create(entry: usize) -> isize {
new_task.kstack.get_top(),
trap_handler as usize,
);
(*new_task_trap_cx).x[10] = arg;
new_task_tid as isize
}