15 extern int process_copy_files(uint64_t clone_flags, struct process_control_block *pcb);
16 int process_copy_flags(uint64_t clone_flags, struct process_control_block *pcb);
17 int process_copy_mm(uint64_t clone_flags, struct process_control_block *pcb);
18 int process_copy_thread(uint64_t clone_flags, struct process_control_block *pcb, uint64_t stack_sta…
21 extern int process_copy_sighand(uint64_t clone_flags, struct process_control_block *pcb);
22 extern int process_copy_signal(uint64_t clone_flags, struct process_control_block *pcb);
23 extern void process_exit_sighand(struct process_control_block *pcb);
24 extern void process_exit_signal(struct process_control_block *pcb);
84     tsk->prev_pcb = &initial_proc_union.pcb;  in do_fork()
86     tsk->next_pcb = initial_proc_union.pcb.next_pcb;  in do_fork()
88     initial_proc_union.pcb.next_pcb = tsk;  in do_fork()
173 int process_copy_flags(uint64_t clone_flags, struct process_control_block *pcb)  in process_copy_flags()  argument
176         pcb->flags |= PF_VFORK;  in process_copy_flags()
187 int process_copy_mm(uint64_t clone_flags, struct process_control_block *pcb)  in process_copy_mm()  argument
189     pcb->address_space = NULL;  in process_copy_mm()
191     return (int)rs_process_copy_mm(clone_vm, pcb);  in process_copy_mm()
242 int process_copy_thread(uint64_t clone_flags, struct process_control_block *pcb, uint64_t stack_sta…  in process_copy_thread()  argument
246     struct thread_struct *thd = (struct thread_struct *)(pcb + 1);  in process_copy_thread()
248     pcb->thread = thd;  in process_copy_thread()
252     if (pcb->flags & PF_KFORK) // 内核态下的fork  in process_copy_thread()
257         child_regs = (struct pt_regs *)(((uint64_t)pcb) + STACK_SIZE - size);  in process_copy_thread()
262         process_rewrite_rbp(child_regs, pcb);  in process_copy_thread()
266         child_regs = (struct pt_regs *)((uint64_t)pcb + STACK_SIZE - sizeof(struct pt_regs));  in process_copy_thread()
274     if (pcb->flags & PF_KFORK)  in process_copy_thread()
277         thd->rbp = (uint64_t)pcb + STACK_SIZE;  in process_copy_thread()
285     if (pcb->flags & PF_KFORK)  in process_copy_thread()
287     else if (pcb->flags & PF_KTHREAD && (!(pcb->flags & PF_KFORK)))  in process_copy_thread()
292     pcb->fp_state = rs_dup_fpstate();  in process_copy_thread()