bazelbuild / bazelbuild/bazel

circular dependency in latest rolling with rules_cc and bazel_tools

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#27,103 2 comments 0 reactions 0 assignees View on GitHub
P3 team-Rules-CPP team-Rules-Python type: bug
Dominant language
Java
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Merged PRs (30d)
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Description

### Description of the bug:

A brief FYI about what might be a circular dependency in the latest rolling release between rules_cc and some bazel_tools builtins.

https://buildkite.com/bazel/rules-python-python/builds/13179/steps/canvas?sid=019993d3-a320-4956-b3dc-d931638405cf

```
(04:57:18) ERROR: /var/lib/buildkite-agent/.cache/bazel/_bazel_buildkite-agent/ec321eb2cc2d0f8f91b676b6d4c66c29/external/bazel_tools/tools/def_parser/BUILD:14:10: in filegroup rule @@bazel_tools//tools/def_parser:def_parser: cycle in dependency graph:
//tests/base_rules/py_test:test_basic_windows (722aae7b58f320c4025775439ffbbc44b718a0727831fd3b9f0f2593de80affa)
//tests/base_rules/py_test:test_basic_windows_subject (8de3dd7f088b7db02a9715c1ba66e744d6e018213843b90df818a136d2d80af3)
@@bazel_tools//tools/test:collect_coverage (3f39976c4854c2284611ebcb922204620a6649d745456440f11f29d2c3c9bc7f)
@@bazel_tools//tools/test:collect_coverage (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
@@rules_shell++sh_configure+local_config_shell//:windows_sh (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
@@bazel_tools//tools/launcher:launcher (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
@@bazel_tools//tools/launcher:2_source_launcher_toolchain_impl (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
@@bazel_tools//src/tools/launcher:launcher (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
@@bazel_tools//src/tools/launcher:bash_launcher (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
@@bazel_tools//src/tools/launcher:launcher_base (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
@@bazel_tools//src/main/cpp/util:filesystem (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
@@bazel_tools//src/main/cpp/util:blaze_exit_code (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
.-> @@bazel_tools//tools/def_parser:def_parser (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
| @@bazel_tools//third_party/def_parser:def_parser (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
| @@rules_cc+//:link_extra_lib (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
`-- @@bazel_tools//tools/def_parser:def_parser (149f681a57ed8d9c55d6ae20c0aea56dadf6cabd8a97d3b3f8a254821522eab5)
```

### Which category does this issue belong to?

_No response_

### What's the simplest, easiest way to reproduce this bug? Please provide a minimal example if possible.

_No response_

### Which operating system are you running Bazel on?

Linux

### What is the output of `bazel info release`?

9.0.0-pre.20250916.1

### If `bazel info release` returns `development version` or `(@non-git)`, tell us how you built Bazel.

_No response_

### What's the output of `git remote get-url origin; git rev-parse HEAD` ?

```text

```

### If this is a regression, please try to identify the Bazel commit where the bug was introduced with bazelisk --bisect.

_No response_

### Have you found anything relevant by searching the web?

_No response_

### Any other information, logs, or outputs that you want to share?

_No response_

Contributor guide

Open the contributing guide

Research direction

Start with the linked Buildkite failure and the dependency path from //tests/base_rules/py_test:test_basic_windows through @@bazel_tools//tools/test:collect_coverage and the launcher targets. Compare the rolling release behavior around @@rules_cc+//:link_extra_lib and @@bazel_tools//tools/def_parser:def_parser; done requires identifying the cycle's cause and producing a minimal reproduction or confirmed fix.

Written by the indexing model from the issue text.

Assessment

Domain
build-system
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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