forked from AbleOS/ableos
69 lines
3.1 KiB
Markdown
69 lines
3.1 KiB
Markdown
### What are the requirements?
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- A machine with [Rustc Tier 1 platform support](https://doc.rust-lang.org/nightly/rustc/platform-support.html#tier-1-with-host-tools)
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- Rustup
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- QEMU (for executing)
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- GIT CLI
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### How do I run ableos?
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- It is recommended to run ableos under QEMU. Here is how:
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- Install QEMU
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- Clone ableos
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- Go to ableos directory
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- Pull the limine submodule with `git submodule update --init`
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- Run `cargo repbuild help`
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### How can I contribute?
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- [Contribute code](#how-do-i-contribute-code)
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- [Run ableos on your machine](#how-do-i-run-ableos)
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- Find bugs
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- Create media showing ableos
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### How do I contribute code?
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- Start by forking ableos
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- Write something that runs in the userspace, for example:
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- System drivers
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- Programs
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- Libraries
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- Patch bugs and improve code in the kernel
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- Ensure that the code is OK to be maintained by asking in the [discord](https://discord.gg/t5Wt3K4YNA)
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- When you have finished your changes, you can submit a pull request for review [here](https://git.ablecorp.us/ableos/ableos)
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### repbuild and kernel compile, but QEMU isn't starting
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- Ensure you have the `qemu-desktop-{arch}` for your OS and target architecture installed
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- Try running again with `--noaccel` if you have QEMU already
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### I have run using repbuild but it's slow
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- Ensure release mode is enabled with the `-r` flag
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- Remove the `--noaccel` flag if you can
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- If both of these are already done, there may be a problem with thee VM, kernel, your program, or the hblang compiler
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### Compiler is complaining about "reg id leaked"
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- [Submit](#how-do-i-report-a-compiler-bug) an issue, reg id leaked is a bug
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### My program isn't running
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- Refer to [here](#i-have-run-using-repbuild-but-its-slow), it may be that your program is simply starting slowly
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- Ensure that your program has a properly written meta.toml file
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- Ensure that your program is enabled in [system_config.toml](sysdata/system_config.toml)
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- Try running again with `--noaccel`, there is a known bug with some systems that prevents programs from starting.
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### Kernel panic??? Huh???
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- Kernel panics can be caused by improperly using memory (e.g, writing out of bounds)
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- Kernel panics are most likely to be caused when accessing memory or using `@eca` for kernel ecalls
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- [Report](#how-do-i-report-an-ableos-bug) a kernel panic
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### I am running in release mode but I have no debug info
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- Add the `-d` flag for debug info
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### What is `@eca`? How do I use it?
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- Eca is an ecall. They are similar to syscalls
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- The `@eca` directive takes the following arguments:
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- `@eca(ecall_number, reg_1, ..., reg_n)`
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- The various ecalls have different arguments that are given by register values
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- Most ecalls are wrapped by `stn`, for example, `random`, `buffer`, and `memory` all make use of ecalls
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- All ecalls can be found [ecah.rs](kernel/src/holeybytes/ecah.rs)
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### How do I report an ableos bug?
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- Submit an issue [here](https://git.ablecorp.us/ableos/ableos/issues) or report it in the [discord](https://discord.gg/t5Wt3K4YNA)
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### How do I report a compiler bug?
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- Submit an issue [here](https://git.ablecorp.us/ableos/holeybytes/issues) or report it in the [discord](https://discord.gg/t5Wt3K4YNA) |