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bazel / rules_cc / 608c7b605fb844a20e96a3eddc9b49ad2542adab
commit608c7b605fb844a20e96a3eddc9b49ad2542adab[log] [tgz]
authorGoogler <plf@google.com>Tue Mar 16 06:44:51 2021 -0700
committerCopybara-Service <copybara-worker@google.com>Tue Mar 16 06:45:21 2021 -0700
treed71084aaa7e928850908583bc36604b4c36b6ea6
parent9544a3eeacfba706ab6be839af9b4a9a26f0a4bd [diff]
C++: Make permissions check optional in cc_shared_library

The cc_shared_library_permissions mechanism was introduced to add control over
which cc_shared_libraries can export a given cc_library. If the repo is big
enough, the owner of a cc_library might want to prevent someone else in a
different package making their library part of the ABI of a public shared
library because that makes it harder to change the cc_library. This does not
apply accross repositories because a dependant repository can overwrite
anything from a repository dependency anyway.

However, it is becoming more apparent than even though this mechanism should
exist, it should not be enabled by default since most people don't need it. To
enable it pass the flag --//examples:enable_permissions_check=True.

RELNOTES:none
PiperOrigin-RevId: 363171677
Change-Id: I8afb3294806bb3053ee1279c6e9c5355089bccbb
3 files changed
tree: d71084aaa7e928850908583bc36604b4c36b6ea6
  1. .bazelci/
  2. cc/
  3. distro/
  4. examples/
  5. tests/
  6. third_party/
  7. tools/
  8. .gitignore
  9. BUILD
  10. CODEOWNERS
  11. CONTRIBUTING.md
  12. internal_deps.bzl
  13. internal_setup.bzl
  14. ISSUE_TEMPLATE.md
  15. LICENSE
  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 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/TODO"],
    sha256 = "TODO",
)

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

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

cc_library(
    ...
)

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: