GitHub - mcandre/crit: Rust cross-compiler
source link: https://github.com/mcandre/crit
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crit: Rust cross-compiler
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SUMMARY
crit
compiles Rust application ports for many different target platforms. This effort is based on conventional Rust tooling, including cross
, cargo
, and the amazing rustc
compiler.
EXAMPLE
$ cd example
$ crit
$ ls .crit/bin
aarch64-apple-darwin
aarch64-unknown-linux-gnu
aarch64-unknown-linux-musl
...
By default, crit builds in release mode (-- -r
).
See crit -h
for more options.
CRATE
DOWNLOAD
https://github.com/mcandre/crit/releases
INSTALL FROM SOURCE
$ cargo install --force --path .
LICENSE
FreeBSD
RUNTIME REQUIREMENTS
Recommended
- Docker First Aid Kit
- a host capable of running musl/Linux containers (e.g. a GNU/Linux, musl/Linux, macOS, or Windows host)
- ASDF 0.10 (run
asdf reshim
after each Rust application binary installation) - direnv 2
- cargo-cache
- tar / zip
- tinyrick 0.0.9
- tree
- GNU compatible time
- Amphetamine (macOS), The Caffeine (Windows), Caffeine (Linux) can prevent hibernation during any long builds
CONTRIBUTING
For more details on developing crit itself, see DEVELOPMENT.md.
Help, some targets are broken?
Check that your project is able to build with conventional cross
or cargo
commands against a single target. A project that does not compile against a single target, will naturally have difficulty when attempting to cross-compile for multiple targets.
Note that Rust introduces new, under-supported targets all the time. We try to keep up, but sometimes we miss a few of these. Regardless, you can declare which targets are disabled, by writing a custom pattern for the -e
/ --exclude-targets
flag.
Some targets may lack stock support for the Rust std
library. This is common for bare metal or embedded targets. For these kinds of targets, you have several strategies for resolution:
- Provide a
std
implementation. Reach out to specialists for the specific target involved. - Avoid using the
std
library, in both your code, as well as the dependency tree. This is actually common practice for many Rust projects, as an proactive stance on embedded development support. - Disable undesired targets.
Help, cross-compilation appears frozen?
crit hides a lot of compiler noise. While a target is building, you can use common Docker commands to inspect the compilation process:
docker ps -a
docker logs [--follow] <container id>
Help, cross-compilation is slow?
Yes, it sure is! Almost as slow as using Virtual Machines for cross-compilation.
Rustaceans come to expect that the Rust compiler is analytical, spending more time optimizing programs, so that the final binaries will run safer and faster. The Rust compiler often taking a long time to compile each individual target.
Naturally, when cross-compiling multiple targets, that time multiplies by the number of targets.
Some cross-compilation performance tips:
- Tune your Docker setup (see the Docker First Aid Kit above)
- Reset common Cargo build profile options (
codegen-units
,lto
,strip
, etc.) - Use debug mode (e.g.,
--
) - Use fewer dependencies
- Design with the UNIX Philosophy, namely Make each program do one thing well. Not a hundred features poorly.
- Keep the host awake (see Amphetamine / The Caffeine / Caffeine above)
- Reserve cross-compilation as a release-time step, distinct from more rapid development tasks
- Perform cross-compilation in a CI/CD pipeline with more CPU, disk, and RAM resources
- Exclude more targets (e.g.,
-e <target pattern>
)
CREDITS
- cross underlying cross-compiler system
- cross-toolchains provisions cross Docker images
- cubejs/rust-cross Docker images for additional cross targets
- factorio generates Go application ports based on the standard Go toolchain
- snek ports native C/C++ applications.
- tug automates multi-platform Docker image builds
- WASM provides a portable interface for C/C++ code.
- xgo supports Go projects with native cgo dependencies.
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