| # Zircon |
| |
| Zircon is the core platform that powers the Fuchsia OS. Zircon is |
| composed of a microkernel (source in kernel/...) as well as a small |
| set of userspace services, drivers, and libraries (source in system/...) |
| necessary for the system to boot, talk to hardware, load userspace |
| processes and run them, etc. Fuchsia builds a much larger OS on top |
| of this foundation. |
| |
| The canonical Zircon Git repository is located |
| at: https://fuchsia.googlesource.com/zircon |
| |
| A read-only mirror of the code is present |
| at: https://github.com/fuchsia-mirror/zircon |
| |
| The Zircon Kernel provides syscalls to manage processes, threads, |
| virtual memory, inter-process communication, waiting on object state |
| changes, and locking (via futexes). |
| |
| Currently there are some temporary syscalls that have been used for early |
| bringup work, which will be going away in the future as the long term |
| syscall API/ABI surface is finalized. The expectation is that there will |
| be about 100 syscalls. |
| |
| Zircon syscalls are generally non-blocking. The wait_one, wait_many |
| port_wait and thread sleep being the notable exceptions. |
| |
| This page is a non-comprehensive index of the zircon documentation. |
| |
| + [Getting Started](docs/getting_started.md) |
| + [Contributing Patches](docs/contributing.md) |
| |
| + [Concepts Overview](docs/concepts.md) |
| + [Kernel Objects](docs/objects.md) |
| + [Process Objects](docs/objects/process.md) |
| + [Thread Objects](docs/objects/thread.md) |
| + [Handles](docs/handles.md) |
| + [System Calls](docs/syscalls.md) |
| |
| + [Driver Development Kit](docs/ddk/overview.md) |
| |
| + [Testing](docs/testing.md) |
| + [Hacking notes](docs/hacking.md) |
| + [Memory usage analysis tools](docs/memory.md) |
| + [Relationship with LK](docs/zx_and_lk.md) |
| + [Micro-benchmarks](docs/benchmarks/microbenchmarks.md) |
