previous frame pointer

基本解釋

The back chain pointer points to the back chain pointer of the previous stack frame.
回鏈指針指向前一個(gè)堆棧框架的回鏈指針。
The final item in the stack frame is a pointer to the previous stack frame, often called the back pointer.
堆棧幀中的最后一個(gè)條目是一個(gè)指向前一堆棧幀的指針，通常被稱為后向指針（back pointer）。
Each stack frame holds a pointer to the previous stack frame (called the back chain pointer), as well as a space for return addresses for when it calls other functions.
每個(gè)堆?？蚣芏加幸粋€(gè)指向前一個(gè)堆?？蚣艿闹羔槪ǚQ為回鏈指針），還有一個(gè)當(dāng)它調(diào)用其他函數(shù)時(shí)用于存放返回地址的空間。