Google Git
Sign in
pigweed / third_party / github / bazelbuild / rules_cc / c2549f6eb07ce00e529b84f9b9f1b31135a9ff77
commitc2549f6eb07ce00e529b84f9b9f1b31135a9ff77[log] [tgz]
authorGoogler <pcloudy@google.com>Thu Oct 03 09:31:57 2024 -0700
committerCopybara-Service <copybara-worker@google.com>Thu Oct 03 09:32:38 2024 -0700
treeeef573848e210adcb525b383d37a1a328c857642
parentf364500ba834894e8dd9d1d4f3e332901a49b1be [diff]
Sync cc toolchain from Bazel's tools/cpp

- @bazel_tools//tools/cpp:toolchain_type is not moved.
- Added cc/toolchains/toolchain_config_utils.bzl for exposing util functions for cc toolchain configuration.

Closes https://github.com/bazelbuild/rules_cc/pull/247

Working towards https://github.com/bazelbuild/bazel/issues/23809

PiperOrigin-RevId: 681913803
Change-Id: I16ff456a212ab0e579c137bd74344255f4e49bd8
38 files changed
tree: eef573848e210adcb525b383d37a1a328c857642
  1. .bazelci/
  2. .bcr/
  3. cc/
  4. examples/
  5. tests/
  6. third_party/
  7. tools/
  8. .gitignore
  9. AUTHORS
  10. BUILD
  11. CODEOWNERS
  12. CONTRIBUTING.md
  13. ISSUE_TEMPLATE.md
  14. LICENSE
  15. MODULE.bazel
  16. README.md
  17. renovate.json
  18. WORKSPACE
README.md

C++ rules for Bazel

  • Postsubmit Build status
  • Postsubmit + Current Bazel Incompatible flags Build status

This repository contains a Starlark implementation of C++ rules in Bazel.

The rules are being incrementally converted from their native implementations in the Bazel source tree.

For the list of C++ rules, see the Bazel documentation.

Getting Started

There is no need to use rules from this repository just yet. If you want to use rules_cc anyway, add the following to your WORKSPACE file:

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

http_archive(
    name = "rules_cc",
    urls = ["https://github.com/bazelbuild/rules_cc/archive/refs/tags/<VERSION>.tar.gz"],
    sha256 = "...",
)

Then, in your BUILD files, import and use the rules:

load("@rules_cc//cc:defs.bzl", "cc_library")

cc_library(
    ...
)

Using the rules_cc toolchain

This repo contains an auto-detecting toolchain that expects to find tools installed on your host machine. This is non-hermetic, and may have varying behaviors depending on the versions of tools found.

There are third-party contributed hermetic toolchains you may want to investigate:

If you'd like to use the cc toolchain defined in this repo, add this to your WORKSPACE after you include rules_cc:

load("@rules_cc//cc:repositories.bzl", "rules_cc_dependencies", "rules_cc_toolchains")

rules_cc_dependencies()

rules_cc_toolchains()

Migration Tools

This repository also contains migration tools that can be used to migrate your project for Bazel incompatible changes.

Legacy fields migrator

Script that migrates legacy crosstool fields into features (incompatible flag, tracking issue).

TLDR:

bazel run @rules_cc//tools/migration:legacy_fields_migrator -- \
  --input=my_toolchain/CROSSTOOL \
  --inline

Contributing

Bazel and rules_cc are the work of many contributors. We appreciate your help!

To contribute, please read the contribution guidelines: CONTRIBUTING.md.

Note that the rules_cc use the GitHub issue tracker for bug reports and feature requests only. For asking questions see: