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18KB file listing tool in no_std Rust and libc (lemmy.ml)
submitted 5 months ago by to c/rust@programming.dev
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Crossposted from https://lemmy.ml/post/48563577

Initial release of FLI - really tiny and fast (like a ๐Ÿชฐ) directory listing tool.

Initial Why: need some easy readable ls like tool for rpi to use via ssh.

Current Why: check if with Rust one can build core utils like tools faster and smaller.

  • Size:

18K - RPI ZERO W

51KB - Mac

  • Default mode streams readdir() => stdout with zero heap allocation.

  • Nice readabilty thx to (๐Ÿ“„ and ๐Ÿ—‚๏ธ) instead of text coloring

  • Written in no_std #rust + libc.

https:// github.com/tracyspacy/fli

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[โ€“] [S] 2 points 5 months ago

"-C", "link-arg=-lstdc++", "-C", "link-arg=-lsupc++", "-C", "link-arg=-lgcc_s"

good catch!

rustix - take a look, thx.

no_std was my deliberate choice. -C prefer-dynamic - it feels that it may be a more fragile option and add some hassles with cross compiling - something like error while loading shared libraries: ... so I have to provide libstd.so as well together with binary to rpi .. where is the gain?

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