Comments (1)
exec创建了新的堆栈,返回用户态执行。
fork时复制了一份地址空间,内核堆栈地址也完全相同,但在mykernel中由于所有进程共享地址空间,复制的堆栈地址不同无法工作,所以在中断处理程序中间无法启动一个新程序,伪造调度前的堆栈状态比较困难,伪造中断对堆栈的操作pushfl pushl %%cs pushl entry可以用iret返回到新程序启动进程,但mykernel中时钟中断处理是屏蔽中断的,新进程无法被中断了,试图开中断sti无效。
from mykernel.
Related Issues (16)
- mykernel中进程调度只是堆栈的切换,能否加入代码段的切换 HOT 1
- 是否有视频课程呢 HOT 1
- 5.4内核和3.9.4内核的allnoconfig可能有不同,才导致5.4需要用defconfig HOT 10
- 最新代码有个问题,栈底不会切换 HOT 2
- mykernel代码疑问 HOT 6
- 允许my_process退出, bzImage会崩溃 HOT 1
- Could not initialize SDL HOT 3
- Where is all the GPRs stored during context switch
- 启动后卡在了Booting from ROM HOT 1
- Issue Title patch 的时候出现 Assignees: Labels: HOT 1
- 孟老师,请问以后会教如何将内核打造为可用的操作系统吗? HOT 1
- Ubuntu22.04版本编译Linux内核5.4.34时遇到兼容性问题解决方案
- patch 生成 HOT 5
- 执行到make的时候会出现报错 HOT 2
- debian 9.5编译linux3.9.4时GCC报错 HOT 3
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from mykernel.