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@ -12,10 +12,6 @@
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- [Filesystem](development/design/filesystem.md)
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- [Filesystem](development/design/filesystem.md)
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- [Configuring a Build Environment](development/environment.md)
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- [Configuring a Build Environment](development/environment.md)
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- [Development Workflow](development/workflow.md)
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- [Development Workflow](development/workflow.md)
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- [Debugging](debugging/README.md)
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- [GDB]()
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- [Logging]()
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- [Performance Profiling]()
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# User Guide
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# User Guide
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- [Using the OS](user/README.md)
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- [Using the OS](user/README.md)
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# Debugging
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Debugging code and understanding what's going wrong is highly important, especially in a complex setup such as this.
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We will try to make it as easy as possible, with tools such as [tracing](https://lib.rs/crates/tracing).
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There are several external tools that can be used as well.
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# GDB
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@ -34,7 +34,7 @@ The source for this site, and our [website](https://mercury.the-system.eu.org) i
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All `crates`/`libraries` are in a `no-std` environment. This means we only have access to the [libcore](https://doc.rust-lang.org/core/) functionality.
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All `crates`/`libraries` are in a `no-std` environment. This means we only have access to the [libcore](https://doc.rust-lang.org/core/) functionality.
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However, we will be using the `alloc` crate to access the heap, and`collections` to have access to data structures like `Vec`.
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However, we will be using the `alloc` crate to access the heap, and`collections` to have access to data structures like `Vec`.
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We should, however, have basic support for [async](https://ferrous-systems.com/blog/stable-async-on-embedded/) and [threading]() in `core::`.
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We should, however, have basic support for [async](https://ferrous-systems.com/blog/stable-async-on-embedded/).
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## Learning
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## Learning
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Before jumping in, I highly recommend learning some stuff abotu **Rust** and embedded development with it.
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Before jumping in, I highly recommend learning some stuff abotu **Rust** and embedded development with it.
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4. Take a quick look through the [Embedded Rust Book](https://docs.rust-embedded.org/book/intro/index.html)
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4. Take a quick look through the [Embedded Rust Book](https://docs.rust-embedded.org/book/intro/index.html)
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5. Read the [RISC-V Guide](https://github.com/mikeroyal/RISC-V-Guide)/[RISC-V Bytes](https://danielmangum.com/categories/risc-v-bytes/) to learn more about the **RISC-V** architecture
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5. Read the [RISC-V Guide](https://github.com/mikeroyal/RISC-V-Guide)/[RISC-V Bytes](https://danielmangum.com/categories/risc-v-bytes/) to learn more about the **RISC-V** architecture
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6. Read the OSDev Wiki entries on [Microkernels](https://wiki.osdev.org/Microkernel) and [Message Passing](https://wiki.osdev.org/Message_Passing)
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6. Read the OSDev Wiki entries on [Microkernels](https://wiki.osdev.org/Microkernel) and [Message Passing](https://wiki.osdev.org/Message_Passing)
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7. Read the [Async Book](https://rust-lang.github.io/async-book/01_getting_started/01_chapter.html)
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Additionally you might want to learn about **Vulkan** if you're going to be hacking on the [GUI](/development/design/gui.md):
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Additionally you might want to learn about **Vulkan** if you're going to be hacking on the [GUI](/development/design/gui.md):
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1. Go through the [Vulkan Tutorial (Rust)](https://kylemayes.github.io/vulkanalia/introduction.html) to learn some of the basics
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1. Go through the [Vulkan Tutorial (Rust)](https://kylemayes.github.io/vulkanalia/introduction.html) to learn some of the basics
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It will also use a global configuration - similar to **Guix** or **NixOS**. This allows it to be easily setup.
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It will also use a global configuration - similar to **Guix** or **NixOS**. This allows it to be easily setup.
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It will likely use [RON](https://lib.rs/crates/ron) for configuration.
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It will likely use [RON](https://lib.rs/crates/ron) for configuration.
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**Note:** [figlet-rs](https://lib.rs/crates/figlet-rs) can be used for cool `ASCII` art!
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Further design decisions are gone into detail in the next few chapters.
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Further design decisions are gone into detail in the next few chapters.
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## Code Organization
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## Code Organization
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Support for multiple targets will be done via `Cargo.toml` targets, cross-compilation, and [conditional compilation](https://doc.rust-lang.org/reference/conditional-compilation.html).
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Support for multiple targets will be done via `Cargo.toml` targets, cross-compilation, and [conditional compilation](https://doc.rust-lang.org/reference/conditional-compilation.html).
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## Concurrency
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For performance, we will be using various concurrency programming techniques.
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For **IO** intensive operations, `async` will be used.
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This will include the [filesystem](/development/design/filesystem.md), [actors](/development/design/actor.md), and [GUI](/development/design/gui.md).
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**CPU**-bound operations are better suited to individual `threads`, however.
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This might include operations like *hashing*, *encryption*, and *indexing*.
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## Boot Process
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## Boot Process
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*To be implemented*
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*To be implemented*
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## Isolation
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## Isolation
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*To-Do*
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*To-Do*
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[^hmac]: [MAC and Key Derivation](https://cryptobook.nakov.com/mac-and-key-derivation)
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[^hmac]: https://cryptobook.nakov.com/mac-and-key-derivation
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