Debug symbols are not getting stripped out of release wasm file - greatly inflating the size - Githubissues

oysterpack / oysterpack-smart-near

OysterPack SMART

MIT License

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Debug symbols are not getting stripped out of release wasm file - greatly inflating the size #1

Closed oysterpack closed 3 years ago

oysterpack commented 3 years ago

Even though I have the following release options set:

[profile.release]
codegen-units = 1
opt-level = "z"
lto = true
debug = 0
panic = "abort"
overflow-checks = true

[profile.release.package."*"]
codegen-units = 1
opt-level = "z"
debug = 0
overflow-checks = true

debug symbols were still being included, which can be seen via the twiggy tool. The wasm fil size was over 1.4 MB.

The short term work around was to use a rust nightly feature to strip out symbols which shrank the file size down to 92.8 KB

rust-toolchain is set to nightly
the rust flag is specified within /near/.cargo/config.toml

NOTES

Just to make sure this was not a side effect of using cargo workspaces, I created a plain vanilla project using rust sdk 2.4 and 3.0. The result was the same, debug symbols were not stripped out.

oysterpack commented 3 years ago

Temporary solution to make it work with rust stable is to use the following rustc flags within /near/.cargo/config.toml :

[build]
rustflags = ["-C", "link-args=-s"]