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Oct 18, 2025
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docs: update Motor OS target docs #147824

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2 changes: 1 addition & 1 deletion src/doc/rustc/src/platform-support.md
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Original file line number Diff line number Diff line change
Expand Up @@ -432,7 +432,7 @@ target | std | host | notes
`x86_64-unknown-l4re-uclibc` | ? | |
[`x86_64-unknown-linux-none`](platform-support/x86_64-unknown-linux-none.md) | * | | 64-bit Linux with no libc
[`x86_64-unknown-managarm-mlibc`](platform-support/managarm.md) | ? | | x86_64 Managarm
[`x86_64-unknown-motor`](platform-support/motor.md) | ? | | x86_64 Motor OS
[`x86_64-unknown-motor`](platform-support/motor.md) | ✓ | | x86_64 Motor OS
[`x86_64-unknown-openbsd`](platform-support/openbsd.md) | ✓ | ✓ | 64-bit OpenBSD
[`x86_64-unknown-trusty`](platform-support/trusty.md) | ✓ | |
`x86_64-uwp-windows-gnu` | ✓ | |
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26 changes: 17 additions & 9 deletions src/doc/rustc/src/platform-support/motor.md
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Expand Up @@ -15,27 +15,35 @@ This target is cross-compiled. There are no special requirements for the host.

Motor OS uses the ELF file format.

## Building the target
## Building the target toolchain

The target can be built by enabling it for a `rustc` build, for example:
Motor OS target toolchain can be
[built using `x.py`](https://rustc-dev-guide.rust-lang.org/building/how-to-build-and-run.html):

The bootstrap file:

```toml
[build]
build-stage = 2
target = ["x86_64-unknown-motor"]
host = ["x86_64-unknown-linux-gnu"]
target = ["x86_64-unknown-linux-gnu", "x86_64-unknown-motor"]
```

The build command:

```sh
./x.py build --stage 2 clippy library
```

## Building Rust programs

Rust standard library is fully supported/implemented, but is not yet part of
the official Rust repo, so an out-of-tree building process should be
followed, as described in the
[build doc](https://github.com/moturus/motor-os/blob/main/docs/build.md).
See the [Hello Motor OS](https://github.com/moturus/motor-os/blob/main/docs/recipes/hello-motor-os.md)
example.

## Testing

Cross-compiled Rust binaries and test artifacts can be executed in Motor OS VMs,
as described in e.g.
as described in the [build doc](https://github.com/moturus/motor-os/blob/main/docs/build.md)
and the
[Hello Motor OS](https://github.com/moturus/motor-os/blob/main/docs/recipes/hello-motor-os.md)
example.

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