llvm/llvm-project

[libc] Clean up copt naming

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#133,505 opened on Mar 28, 2025

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good first issuelibc

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Description

Our code style document says all our compile flags set by the build system should start LIBC_COPT_ but not all of them do. We should update them to fit our naming scheme.

Steps to fix:

  1. go through the flags in config.json
  2. For each flag, check what copt it defines
  3. If that copt doesn't start with LIBC_COPT_, rename it so it does.
  4. Make sure the flag is renamed everywhere it's used in code, cmake, and bazel.

Contributor guide

Research direction
Inspect config.json and rename compile flags that do not start with LIBC COPT to follow the naming convention. Update all references in code, CMake, and Bazel files.
Tech stack
c
Domain
build systemtooling
Issue type
Refactor
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Gitcmakebazel
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
80