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xous-core/kernel
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Sean Cross 1b315de830 kernel: make init proces stack grown downwards 
Previously, we were creating a stack beginning at the initial page,
and then growing it upwards. The correct behavior is to begin it at
the top and grow it downwards.

In order to do this, subtract the size of the stack from the initial
pointer.

Signed-off-by: Sean Cross <sean@xobs.io>
2021-08-15 19:26:11 +08:00
..
.cargo wip 2021-06-16 16:53:40 +08:00
.vscode vscode: specify platform for vscode support 2021-08-06 17:51:47 +08:00
bin clean up some boot process holdovers 2021-04-30 23:28:31 +08:00
src kernel: make init proces stack grown downwards 2021-08-15 19:26:11 +08:00
utralib kernel: use vendered version of utralib 2021-08-04 12:19:16 +08:00
assemble.ps1
assemble.sh suspend/resume now works to hardware 2021-04-30 19:29:36 +08:00
build.rs kernel: don't use debug_here in CI 2021-06-21 20:05:24 +08:00
Cargo.lock intermediate work toward getting the password box going 2021-07-26 00:51:22 +08:00
Cargo.toml kernel: use vendered version of utralib 2021-08-04 12:19:16 +08:00
link.x
README.md adding license info to README 2021-01-25 14:57:39 +01:00

README.md

Xous Kernel

This contains the core kernel for Xous. It requires a stage 1 loader in order to start up, as it assumes the system is already running in Supervisor mode.

Building

To build the kernel, you will need a riscv32 target for Rust. Possible targets include riscv32i-unknown-none-elf, riscv32imac-unknown-none-elf, or riscv32imac-unknown-xous-elf.

  1. Decide what target you want. For simple, embedded systems this could be riscv32i-unknown-none-elf, and for more complex systems with compressed instructions you could use riscv32imac-unknown-none-elf.
  2. Get Rust. Go to https://rustup.rs/ and follow its instructions.
  3. Install the proper toolchain: rustup target add ${target_arch}
  4. Build the kernel: cargo build --release --target ${target_arch}

Using

To use the kernel, you must package it up into an arguments binary with xous-tools.

Testing

TBD

Contribution Guidelines

Contributor Covenant

Please see CONTRIBUTING for details on how to make a contribution.

Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide its terms.

License

Copyright © 2020

This project is licensed under the Apache License 2.0 LICENSE. For accurate information, please check individual files.