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fslongjin
2022-06-08 00:19:08 +08:00
parent 4e04ab9eee
commit 8f180254bc
5 changed files with 124 additions and 67 deletions
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3
kernel/syscall/syscall.c
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@ -634,7 +634,8 @@ uint64_t sys_wait4(struct pt_regs *regs)
wait_queue_sleep_on_interriptible(&current_pcb->wait_child_proc_exit);
// 拷贝子进程的返回码
copy_to_user(status, (void*)child_proc->exit_code, sizeof(int));
*status = child_proc->exit_code;
// copy_to_user(status, (void*)child_proc->exit_code, sizeof(int));
proc->next_pcb = child_proc->next_pcb;
// 释放子进程的页表