anton/EMBARK
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
72 Commits 1 Branch 1 Tag 555 KiB
C 67.8%
Python 17.8%
Assembly 10%
Makefile 3.8%
Shell 0.6%
d1bef0f8a1
Go to file
Anton Lydike d1bef0f8a1 improved scheduling code
2021-08-26 10:35:56 +02:00
kinclude improved scheduling code 2021-08-26 10:35:56 +02:00
programs uncrustified example programs 2021-08-22 19:54:58 +02:00
.gitignore added uncrustify config for formatting 2021-08-22 19:47:31 +02:00
cleanup.sh added cleanup.sh file that cleans up all source code 2021-08-22 19:55:13 +02:00
kernel.c improved scheduling code 2021-08-26 10:35:56 +02:00
kernel.h Reuse stacks of dead processes 2021-08-23 09:38:28 +02:00
LICENSE initial commit 2021-06-21 11:12:33 +02:00
linker.ld various imrpovements and implementations on the kernel 2021-08-21 21:18:03 +02:00
Makefile added -O3 flag to compilation 2021-08-22 19:05:31 +02:00
package.py removed trailing whitespaces from package.py 2021-08-22 19:05:50 +02:00
README.md updated readme 2021-08-21 21:27:11 +02:00
uncrustify.cfg added uncrustify config for formatting 2021-08-22 19:47:31 +02:00

README.md

EMBARK: An Educational and Modifiable BAsic RISC-V Kernel

EMBARK is a small kernel, designed for educational projects. It has very limited scope and is designed to be extensible.

The toolchain:

I am using the riscv-gnu-toolchain, configured with --with-arch=rv32im --disable-linux --disable-gdb --disable-multilib and built using make -j <number of threads>.

The Makefile:

You can build the kernel using make kernel. Make sure the toolchain is in your path!

Packaging a kernel image with user programs

You can use the package.py script to package a kernel and multiple user binaries into a single img file.

Debugging information is also emitted, it's a json formatted file called <name>.img.dbg.

To generate such an image, run python3 package.py out/kernel <user bin 1> <usr bin 2> ... output/path/memory.img. You can edit the script to change various variables. They somewhat well documented.