Here is the script I use to generate coverage for my Rust crate. It’s mostly adapted from the official documentation. It play well with the Coverge Gutters plugin in VSCode.
#! /bin/sh # Enable coverage in rustc export RUSTFLAGS="-C instrument-coverage" # Collect object file names files=$(cargo test --no-run --message-format=json | jq -r "select(.profile.test == true) | .filenames[]" | grep -v dSYM -) objects_args=$(for file in $files; do printf "%s %s " -object $file; done) common_args="--ignore-filename-regex=/.cargo/registry --instr-profile=coverage.profdata $objects_args" # Run tests cargo test llvm-profdata merge -sparse default_*.profraw -o coverage.profdata # Display summary to the console llvm-cov report $common_args # HTML output llvm-cov show $common_args --show-instantiations --show-line-counts-or-regions -format=html > coverage.html # Create a lcov file for Coverage Gutters # https://marketplace.visualstudio.com/items?itemName=ryanluker.vscode-coverage-gutters llvm-cov export $common_args -format=lcov > lcov.info
XRunHProf 