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History

James Zow 52b7ac9b2f fix ci/cd error (#195 ) * fix ci/cd error * update copyright year * Modify remaining years * solve ci report settings.json code style * update .prettierrc.json * prettierrc fix code style * fix rb file i.to_s and code style * fix error Line is too long. [101/100] * Modify the Ruby file format and restore other file formats * update makefile and readme file space		7 months ago
..
.vscode	fix ci/cd error (#195 )	7 months ago
src	fix ci/cd error (#195 )	7 months ago
Cargo.lock	Give the project a name	3 years ago
Cargo.toml	fix ci/cd error (#195 )	7 months ago
Makefile	fix ci/cd error (#195 )	7 months ago
README.CN.md	More link.ld -> kernel.ld renaming	2 years ago
README.ES.md	More link.ld -> kernel.ld renaming	2 years ago
README.md	Updated to reflect rename of link.ld to kernel.ld	2 years ago
build.rs	Linker: Use absolute library path	2 years ago

Tutorial 01 - Wait Forever

tl;dr

The project skeleton is set up.
A small piece of assembly code runs that just halts all CPU cores executing the kernel code.

BSP-specific kernel.ld linker script.
- Load address at 0x8_0000
- Only .text section.
main.rs: Important inner attributes:
- #![no_std], #![no_main]
boot.s: Assembly _start() function that executes wfe (Wait For Event), halting all cores that are executing _start().
We (have to) define a #[panic_handler] function to make the compiler happy.
- Make it unimplemented!() because it will be stripped out since it is not used.

In the project folder, invoke QEMU and observe the CPU core spinning on wfe:

$ make qemu
[...]
IN:
0x00080000:  d503205f  wfe
0x00080004:  17ffffff  b        #0x80000