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pigweed / third_party / github / bazelbuild / rules_cc / b4f54fab8916b5149a8b514b58d8b9f0b75142d1
commitb4f54fab8916b5149a8b514b58d8b9f0b75142d1[log] [tgz]
authorKeith Smiley <keithbsmiley@gmail.com>Sun Sep 22 13:56:36 2024 -0700
committerKeith Smiley <keithbsmiley@gmail.com>Sun Sep 22 14:00:13 2024 -0700
tree61bf5513eb653f4b4088b06f5fba98f8f6c9ae78
parent91f050e46125fcba5959c157c59c9da53212d355 [diff]
Allow extra args to cc_sysroot

It's possible for there to be some arguments that are naturally
associated with the sysroot flag, for example on macOS there are
associated framework search paths that should be added with
`-F{sysroot}/Library/Frameworks`. There are also warnings flags you
might want to add such as `-Werror=missing-sysroot`. In this case I
think it's nicer to provide them alongside the sysroot definition,
instead of having to create a custom cc_args for them.
1 file changed
tree: 61bf5513eb653f4b4088b06f5fba98f8f6c9ae78
  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: