Module materialize.rustc_flags

# Copyright Materialize, Inc. and contributors. All rights reserved.
#
# Use of this software is governed by the Business Source License
# included in the LICENSE file at the root of this repository.
#
# As of the Change Date specified in that file, in accordance with
# the Business Source License, use of this software will be governed
# by the Apache License, Version 2.0.

"""rustc flags."""

# Flags to enable code coverage.
#
# Note that because clusterd gets terminated by a signal in most
# cases, it needs to use LLVM's continuous profiling mode, and though
# the documentation is contradictory about this, on Linux this
# requires the additional -runtime-counter-relocation flag or you'll
# get errors of the form "__llvm_profile_counter_bias is undefined"
# and no profiles will be written.
coverage = [
    "-Cinstrument-coverage",
    "-Cllvm-args=-runtime-counter-relocation",
]