12 int process_copy_files(uint64_t clone_flags, struct process_control_block *pcb);
13 int process_copy_flags(uint64_t clone_flags, struct process_control_block *pcb);
14 int process_copy_mm(uint64_t clone_flags, struct process_control_block *pcb);
15 int process_copy_thread(uint64_t clone_flags, struct process_control_block *pcb, uint64_t stack_sta…
16                         uint64_t stack_size, struct pt_regs *current_regs);
18 extern int process_copy_sighand(uint64_t clone_flags, struct process_control_block *pcb);
19 extern int process_copy_signal(uint64_t clone_flags, struct process_control_block *pcb);
169 int process_copy_flags(uint64_t clone_flags, struct process_control_block *pcb)  in process_copy_flags()
183 int process_copy_files(uint64_t clone_flags, struct process_control_block *pcb)  in process_copy_files()
211 int process_copy_mm(uint64_t clone_flags, struct process_control_block *pcb)  in process_copy_mm()
239     uint64_t *current_pgd = (uint64_t *)phys_2_virt(current_pcb->mm->pgd);  in process_copy_mm()
241     uint64_t *new_pml4t = (uint64_t *)phys_2_virt(new_mms->pgd);  in process_copy_mm()
260                 uint64_t pa = alloc_pages(ZONE_NORMAL, 1, PAGE_PGT_MAPPED)->addr_phys;  in process_copy_mm()
278             uint64_t map_size = PAGE_4K_ALIGN(vma_size);  in process_copy_mm()
279             uint64_t va = (uint64_t)kmalloc(map_size, 0);  in process_copy_mm()
307     uint64_t new_top = ((uint64_t)new_pcb) + STACK_SIZE;  in process_rewrite_rbp()
308     uint64_t old_top = (uint64_t)(current_pcb) + STACK_SIZE;  in process_rewrite_rbp()
310     uint64_t *rbp = &new_regs->rbp;  in process_rewrite_rbp()
311     uint64_t *tmp = rbp;  in process_rewrite_rbp()
314     if ((uint64_t)*rbp >= old_top || (uint64_t)*rbp < (old_top - STACK_SIZE))  in process_rewrite_rbp()
320         uint64_t delta = old_top - *rbp;  in process_rewrite_rbp()
322         uint64_t newVal = new_top - delta;  in process_rewrite_rbp()
325         if (unlikely((uint64_t)newVal >= new_top || (uint64_t)newVal < (new_top - STACK_SIZE)))  in process_rewrite_rbp()
330         rbp = (uint64_t *)*rbp;  in process_rewrite_rbp()
345 int process_copy_thread(uint64_t clone_flags, struct process_control_block *pcb, uint64_t stack_sta…  in process_copy_thread()
346                         uint64_t stack_size, struct pt_regs *current_regs)  in process_copy_thread()
358         uint32_t size = ((uint64_t)current_pcb) + STACK_SIZE - (uint64_t)(current_regs);  in process_copy_thread()
360         child_regs = (struct pt_regs *)(((uint64_t)pcb) + STACK_SIZE - size);  in process_copy_thread()
368         child_regs = (struct pt_regs *)((uint64_t)pcb + STACK_SIZE - sizeof(struct pt_regs));  in process_copy_thread()
378             (uint64_t)(child_regs + 1); // 设置新的内核线程开始执行时的rbp（也就是进入ret_from_system_call时的rbp）  in process_copy_thread()
380         thd->rbp = (uint64_t)pcb + STACK_SIZE;  in process_copy_thread()
383     thd->rsp = (uint64_t)child_regs;  in process_copy_thread()
389         thd->rip = (uint64_t)ret_from_system_call;  in process_copy_thread()
391         thd->rip = (uint64_t)kernel_thread_func;  in process_copy_thread()
393         thd->rip = (uint64_t)ret_from_system_call;  in process_copy_thread()