本实验的网站链接:MIT 6.828 Lab 1 Exercise 12. 题目 Exercise 12. Modify your stack backtrace function to display, for each eip, the function name, source file name, and line number corresponding to that eip. In debuginfo_eip, where do __STAB_* come from? This q…

本实验的网站链接:MIT 6.828 Lab 1 Exercise 11. 题目 The above exercise should give you the information you need to implement a stack backtrace function, which you should call mon_backtrace(). A prototype for this function is already waiting for you in kern/moni…

本实验的网站链接:MIT 6.828 Lab 1 Exercise 10. 题目 Exercise 10. To become familiar with the C calling conventions on the x86, find the address of the test_backtrace function in obj/kern/kernel.asm, set a breakpoint there, and examine what happens each time it…

本实验的网站链接:MIT 6.828 Lab 1 Exercise 8. 题目 Exercise 8. Read through kern/printf.c, lib/printfmt.c, and kern/console.c, and make sure you understand their relationship.We have omitted a small fragment of code - the code necessary to print octal numbers u…

本实验的网站链接:mit 6.828 lab1 Exercise 3. 题目 Exercise 3. Take a look at the lab tools guide, especially the section on GDB commands. Even if you're familiar with GDB, this includes some esoteric GDB commands that are useful for OS work. Set a breakpoint at…

本实验链接:mit 6.828 lab1 Exercise 7. 题目 Exercise 7. Use QEMU and GDB to trace into the JOS kernel and stop at the movl %eax, %cr0. Examine memory at 0x00100000 and at 0xf0100000. Now, single step over that instruction using the stepi GDB command. Again,…

本实验链接:mit 6.828 lab1 Exercise 4. 题目 Exercise 4. Read about programming with pointers in C. The best reference for the C language is The C Programming Language by Brian Kernighan and Dennis Ritchie (known as 'K&R'). We recommend that students purchase…

本实验链接:mit 6.828 lab1 Exercise2. 题目 Exercise 2. Use GDB's si (Step Instruction) command to trace into the ROM BIOS for a few more instructions, and try to guess what it might be doing. You might want to look at Phil Storrs I/O Ports Description, as we…

Exercise 03 - obj/boot/boot.asm 反汇编文件 截取asm部分文件并注释理解 # Set up the important data segment registers (DS, ES, SS). xorw %ax,%ax # Segment number zero 7c02: 31 c0 xor %eax,%eax //指令地址: 指令机器码 指令机器码反汇编到的指令 movw %ax,%ds # -> Data Segment 7c04: 8e d8 mov %e…

<MIT 6.828 Lab1: Booting a PC>实验报告 本实验的网站链接见:Lab 1: Booting a PC. 实验内容 熟悉x86汇编语言.QEMU x86仿真器.PC开机引导流程 测试6.828 内核的启动加载器(boot loader) 研究6.828 内核的初始化模板(JOS) 实验题目 注意:部分Exercise的解答过程较长,因此专门新建一个文档来记录解答过程,而在本文中给出其链接. Exercise 1:阅读汇编语言资料 Exercise 1. Familia…