regression: mmap for fd

[lunaix-os.git] / lunaix-os / kernel / process / process.c

diff --git a/lunaix-os/kernel/process/process.c b/lunaix-os/kernel/process/process.c
index 74c93807f57115ac85f582d60c5acdd58996d313..9cef1f87ac40a70a7b9502607187a4d2fba1de57 100644 (file)
--- a/lunaix-os/kernel/process/process.c
+++ b/lunaix-os/kernel/process/process.c
@@ -142,9 +142,12 @@ init_proc_user_space(struct proc_info* pcb)
 
     /*---  分配用户栈  ---*/
 
+    struct mm_region* stack_vm;
+
+    stack_vm = region_create(
+      USTACK_END, USTACK_TOP, REGION_RW | REGION_RSHARED | REGION_ANON);
     // 注册用户栈区域
-    region_add(
-      &pcb->mm.regions, USTACK_END, USTACK_TOP, REGION_RW | REGION_RSHARED);
+    region_add(&pcb->mm.regions, stack_vm);
 
     // 预留地址空间，具体物理页将由Page Fault Handler按需分配。
     for (uintptr_t i = PG_ALIGN(USTACK_END); i < USTACK_TOP; i += PG_SIZE) {
@@ -211,7 +214,7 @@ dup_proc()
     // 根据 mm_region 进一步配置页表
 
     struct mm_region *pos, *n;
-    llist_for_each(pos, n, &pcb->mm.regions.head, head)
+    llist_for_each(pos, n, &pcb->mm.regions, head)
     {
         // 如果写共享，则不作处理。
         if ((pos->attr & REGION_WSHARED)) {