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Kobzol / cargo-pgo

Cargo subcommand for optimizing Rust binaries/libraries with PGO and BOLT.
MIT License
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can't find crate for `profiler_builtins` #41

Closed Demontf closed 12 months ago

Demontf commented 12 months ago

Hi excuse me, I just use a hello world project(only have one file main.rs) to learning the PGO under the project when I execute cargo pgo build meet this

errror[E0463]: can't find crate for profiler_builtins | = note: the compiler may have been built without the profiler runtime

error: aborting due to previous error

For more information about this error, try rustc --explain E0463. error: could not compile ww due to 2 previous errors [2023-12-05T16:47:31Z ERROR cargo_pgo::pgo::instrument] PGO instrumentation build has failed. Cargo finished with an error (101)

But there is no package named profiler_builtins in crates.io

Kobzol commented 12 months ago

Hi, profiler_builtins is a rustc compiler crate that implements profiling instrumentation. If it's not available, then your Rust toolchain or platform probably doesn't support PGO.