Cargo: Option for stripping binary

[torkleyy]

I think it would be helpful to have an option for stripping the binary (probably as default in release mode) because executables often get much smaller.

[mdsteele]

I would like to have this as well. See also #4122.

[ghost]

(ugly) workaround is:

~sh
RUSTFLAGS='-C link-arg=-s' cargo build --release
~

https://github.com/rust-lang/cargo/issues/4122#issuecomment-378928831

[johnthagen]

Possible solution is the recently released cargo-strip

[dewyatt]

Possible solution is the recently released cargo-strip

That appears to just call strip, which may not always be what you want (you may want x86_64-linux-musl-strip, for example).

[johnthagen]

@dewyatt I'd suggest opening an issue with cargo-strip as that may be a use case that wasn't considered.

[fadeevab]

For the record, I was slightly confused why my release binary had 3 MB of size, and I found _debug_ info inside of my _release_ binary. After strip the size is just 500 KB.

[GabrielMajeri]

It's now possible (with a nightly compiler) to have the linker strip symbols from the final build by adding a strip = "symbols" line to your [profile.dev]/[profile.release] section in Cargo.toml (and enable the corresponding cargo-feature).

[ehuss]

To be clear, the Cargo support will land in nightly sometime next week.

[zonyitoo]

When will this feature to be released in stable channel? It seems that this feature is not included in v1.46.0. @ehuss

[ehuss]

@zonyitoo It will not appear in stable until the feature is stabilized. You can follow the tracking issue at https://github.com/rust-lang/rust/issues/72110 to see when it is stabilized.