xywanz / kevos Goto Github PK

With the help of bochs debugger, I find out the bug causing stranger memory error. If not setting 64-bit mode segment descriptor in protected mode, the machine would still explain the code int 32 bit mode, and then instructions such as "callq" is invalid and would cause unknown error. The second is "ljmp" only work in 32 bit mode. We just need to use it one time in the course of jumping from protected mode to long mode!

Kevos will be built on c++17 or higher, so building a c++17 standard template library is necessary for us. Now stl is just finished quiet a little in src/user/lib/stl/include. It's a hard and challenging work, and through doing it, we could know the stl lib deeply. With the help of stl, our kernel could be written in a modern c++ programming way, which would look like so cool! 😄

I want to transplant std lib to the kernel, and then gcc could be installed.

1. You need some dependencies such as kpartx.
2. I build the kernel through linux vm in vagrant, but I write the code in windows, so I need to use the shared folder. However, directly mounting the img in shared folder to /mnt/ would cause some error, so I copy the project folder to ~/ to build it. If you want to use build.sh to build kevos, you must modify paths in the shell to fit your system first.