mirror of
https://github.com/rust-lang/rust
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e71f952912
Apply size optimizations to panic machinery and some cold functions * std dependencies gimli and addr2line are now built with opt-level=s * various panic-related methods and `#[cold]` methods are now marked `#[optimize(size)]` Panics should be cold enough that it doesn't make sense to optimize them for speed. The only tradeoff here is if someone does a lot of backtrace captures (without panics) and printing then the opt-level change might impact their perf. Seems to be the first use of the optimize attribute. Tracking issue #54882
48 lines
1.6 KiB
TOML
48 lines
1.6 KiB
TOML
[workspace]
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resolver = "1"
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members = [
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"std",
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"sysroot",
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]
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exclude = [
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# stdarch has its own Cargo workspace
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"stdarch",
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"windows_targets"
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]
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[profile.release.package.compiler_builtins]
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# For compiler-builtins we always use a high number of codegen units.
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# The goal here is to place every single intrinsic into its own object
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# file to avoid symbol clashes with the system libgcc if possible. Note
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# that this number doesn't actually produce this many object files, we
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# just don't create more than this number of object files.
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#
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# It's a bit of a bummer that we have to pass this here, unfortunately.
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# Ideally this would be specified through an env var to Cargo so Cargo
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# knows how many CGUs are for this specific crate, but for now
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# per-crate configuration isn't specifiable in the environment.
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codegen-units = 10000
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# These dependencies of the standard library implement symbolication for
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# backtraces on most platforms. Their debuginfo causes both linking to be slower
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# (more data to chew through) and binaries to be larger without really all that
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# much benefit. This section turns them all to down to have no debuginfo which
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# helps to improve link times a little bit.
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[profile.release.package]
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addr2line.debug = 0
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addr2line.opt-level = "s"
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adler.debug = 0
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gimli.debug = 0
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gimli.opt-level = "s"
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miniz_oxide.debug = 0
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object.debug = 0
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rustc-demangle.debug = 0
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[patch.crates-io]
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# See comments in `library/rustc-std-workspace-core/README.md` for what's going on
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# here
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rustc-std-workspace-core = { path = 'rustc-std-workspace-core' }
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rustc-std-workspace-alloc = { path = 'rustc-std-workspace-alloc' }
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rustc-std-workspace-std = { path = 'rustc-std-workspace-std' }
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