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Bump rules_cc with explicit loads for Bazel 9#47716

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regis.desgroppes/prereq-rules-cc-explicit-loads
Mar 11, 2026
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Bump rules_cc with explicit loads for Bazel 9#47716
gh-worker-dd-mergequeue-cf854d[bot] merged 1 commit intomainfrom
regis.desgroppes/prereq-rules-cc-explicit-loads

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@rdesgroppes
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What does this PR do?

Bump rules_cc from 0.2.8 to 0.2.17 (latest BCR release) and replace implicit global cc_* rule usage in our BUILD.bazel files with explicit loads from @rules_cc//cc:defs.bzl.

Motivation

Bazel has long deprecated injecting cc_library, cc_shared_library, cc_binary, cc_import and cc_test as built-in globals.

Making the loads explicit is the correct practice regardless of Bazel version, and is a prerequisite for the upcoming Bazel 9 bump where those globals are removed entirely.

@rdesgroppes rdesgroppes added the changelog/no-changelog No changelog entry needed label Mar 11, 2026
@rdesgroppes rdesgroppes requested a review from a team as a code owner March 11, 2026 12:36
@rdesgroppes rdesgroppes added the qa/no-code-change No code change in Agent code requiring validation label Mar 11, 2026
@dd-octo-sts dd-octo-sts bot added internal Identify a non-fork PR team/agent-build labels Mar 11, 2026
@github-actions github-actions bot added the long review PR is complex, plan time to review it label Mar 11, 2026
@rdesgroppes rdesgroppes force-pushed the regis.desgroppes/prereq-rules-cc-explicit-loads branch from 107b445 to 524c447 Compare March 11, 2026 12:49
Bump `rules_cc` from 0.2.8 to 0.2.17 (latest BCR release) and replace
implicit global `cc_*` rule usage in our `BUILD.bazel` files with explicit
loads from `@rules_cc//cc:defs.bzl`.

Bazel has long deprecated injecting `cc_library`, `cc_shared_library`,
`cc_binary`, `cc_import` and `cc_test` as built-in globals.
Making the `load`s explicit is the correct practice regardless of Bazel version, and is a
prerequisite for the upcoming Bazel 9 bump where those globals are
removed entirely.
@rdesgroppes rdesgroppes force-pushed the regis.desgroppes/prereq-rules-cc-explicit-loads branch from 524c447 to 8d4f57c Compare March 11, 2026 12:53
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Files inventory check summary

File checks results against ancestor bf47cd83:

Results for datadog-agent_7.78.0~devel.git.505.8d4f57c.pipeline.101848040-1_amd64.deb:

No change detected

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Static quality checks

✅ Please find below the results from static quality gates
Comparison made with ancestor 29de684
📊 Static Quality Gates Dashboard
🔗 SQG Job

31 successful checks with minimal change (< 2 KiB)
Quality gate Current Size
agent_deb_amd64 746.900 MiB
agent_deb_amd64_fips 705.232 MiB
agent_heroku_amd64 311.738 MiB
agent_msi 609.806 MiB
agent_rpm_amd64 746.884 MiB
agent_rpm_amd64_fips 705.216 MiB
agent_rpm_arm64 724.770 MiB
agent_rpm_arm64_fips 686.112 MiB
agent_suse_amd64 746.884 MiB
agent_suse_amd64_fips 705.216 MiB
agent_suse_arm64 724.770 MiB
agent_suse_arm64_fips 686.112 MiB
docker_agent_amd64 807.222 MiB
docker_agent_arm64 809.913 MiB
docker_agent_jmx_amd64 998.137 MiB
docker_agent_jmx_arm64 989.608 MiB
docker_cluster_agent_amd64 203.665 MiB
docker_cluster_agent_arm64 218.100 MiB
docker_cws_instrumentation_amd64 7.135 MiB
docker_cws_instrumentation_arm64 6.689 MiB
docker_dogstatsd_amd64 38.631 MiB
docker_dogstatsd_arm64 36.939 MiB
dogstatsd_deb_amd64 29.855 MiB
dogstatsd_deb_arm64 28.008 MiB
dogstatsd_rpm_amd64 29.855 MiB
dogstatsd_suse_amd64 29.855 MiB
iot_agent_deb_amd64 43.068 MiB
iot_agent_deb_arm64 40.126 MiB
iot_agent_deb_armhf 40.870 MiB
iot_agent_rpm_amd64 43.068 MiB
iot_agent_suse_amd64 43.068 MiB
On-wire sizes (compressed)
Quality gate Change Size (prev → curr → max)
agent_deb_amd64 +2.46 KiB (0.00% increase) 174.431 → 174.434 → 177.700
agent_deb_amd64_fips -16.89 KiB (0.01% reduction) 165.370 → 165.354 → 172.230
agent_heroku_amd64 +3.19 KiB (0.00% increase) 75.165 → 75.168 → 79.970
agent_msi neutral 138.047 MiB → 146.220
agent_rpm_amd64 -11.27 KiB (0.01% reduction) 176.409 → 176.398 → 180.780
agent_rpm_amd64_fips +9.45 KiB (0.01% increase) 168.126 → 168.135 → 173.370
agent_rpm_arm64 +48.76 KiB (0.03% increase) 159.273 → 159.320 → 161.610
agent_rpm_arm64_fips -16.8 KiB (0.01% reduction) 151.427 → 151.411 → 155.910
agent_suse_amd64 -11.27 KiB (0.01% reduction) 176.409 → 176.398 → 180.780
agent_suse_amd64_fips +9.45 KiB (0.01% increase) 168.126 → 168.135 → 173.370
agent_suse_arm64 +48.76 KiB (0.03% increase) 159.273 → 159.320 → 161.610
agent_suse_arm64_fips -16.8 KiB (0.01% reduction) 151.427 → 151.411 → 155.910
docker_agent_amd64 -5.19 KiB (0.00% reduction) 267.118 → 267.113 → 271.240
docker_agent_arm64 +2.68 KiB (0.00% increase) 254.427 → 254.430 → 259.800
docker_agent_jmx_amd64 -6.85 KiB (0.00% reduction) 335.776 → 335.769 → 339.870
docker_agent_jmx_arm64 +14.6 KiB (0.00% increase) 319.066 → 319.080 → 324.390
docker_cluster_agent_amd64 neutral 71.287 MiB → 72.920
docker_cluster_agent_arm64 neutral 66.913 MiB → 68.220
docker_cws_instrumentation_amd64 neutral 2.995 MiB → 3.330
docker_cws_instrumentation_arm64 neutral 2.727 MiB → 3.090
docker_dogstatsd_amd64 neutral 14.947 MiB → 15.820
docker_dogstatsd_arm64 neutral 14.284 MiB → 14.830
dogstatsd_deb_amd64 -2.07 KiB (0.03% reduction) 7.889 → 7.887 → 8.790
dogstatsd_deb_arm64 neutral 6.773 MiB → 7.710
dogstatsd_rpm_amd64 neutral 7.898 MiB → 8.800
dogstatsd_suse_amd64 neutral 7.898 MiB → 8.800
iot_agent_deb_amd64 neutral 11.356 MiB → 12.040
iot_agent_deb_arm64 neutral 9.666 MiB → 10.450
iot_agent_deb_armhf neutral 9.896 MiB → 10.620
iot_agent_rpm_amd64 neutral 11.375 MiB → 12.060
iot_agent_suse_amd64 neutral 11.375 MiB → 12.060

@rdesgroppes
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/merge

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gh-worker-devflow-routing-ef8351 bot commented Mar 11, 2026

View all feedbacks in Devflow UI.

2026-03-11 13:44:46 UTC ℹ️ Start processing command /merge


2026-03-11 13:44:51 UTC ℹ️ MergeQueue: pull request added to the queue

The expected merge time in main is approximately 51m (p90).


2026-03-11 14:16:32 UTC ℹ️ MergeQueue: This merge request was merged

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cit-pr-commenter-54b7da bot commented Mar 11, 2026

Regression Detector

Regression Detector Results

Metrics dashboard
Target profiles
Run ID: d626f03b-c3b8-41b1-bb9a-aa169c3f776f

Baseline: 9323ce8
Comparison: dbf2b24
Diff

Optimization Goals: ✅ No significant changes detected

Experiments ignored for regressions

Regressions in experiments with settings containing erratic: true are ignored.

perf experiment goal Δ mean % Δ mean % CI trials links
docker_containers_cpu % cpu utilization -2.24 [-5.19, +0.71] 1 Logs

Fine details of change detection per experiment

perf experiment goal Δ mean % Δ mean % CI trials links
ddot_metrics memory utilization +0.50 [+0.31, +0.68] 1 Logs
quality_gate_idle memory utilization +0.17 [+0.12, +0.22] 1 Logs bounds checks dashboard
file_tree memory utilization +0.16 [+0.10, +0.21] 1 Logs
tcp_syslog_to_blackhole ingress throughput +0.14 [+0.02, +0.27] 1 Logs
file_to_blackhole_1000ms_latency egress throughput +0.05 [-0.38, +0.48] 1 Logs
file_to_blackhole_500ms_latency egress throughput +0.05 [-0.33, +0.43] 1 Logs
otlp_ingest_logs memory utilization +0.03 [-0.06, +0.12] 1 Logs
uds_dogstatsd_to_api ingress throughput +0.01 [-0.17, +0.18] 1 Logs
file_to_blackhole_0ms_latency egress throughput +0.00 [-0.47, +0.48] 1 Logs
tcp_dd_logs_filter_exclude ingress throughput -0.00 [-0.10, +0.10] 1 Logs
uds_dogstatsd_to_api_v3 ingress throughput -0.01 [-0.18, +0.16] 1 Logs
ddot_metrics_sum_cumulative memory utilization -0.04 [-0.18, +0.11] 1 Logs
file_to_blackhole_100ms_latency egress throughput -0.05 [-0.10, +0.00] 1 Logs
ddot_metrics_sum_cumulativetodelta_exporter memory utilization -0.05 [-0.28, +0.17] 1 Logs
uds_dogstatsd_20mb_12k_contexts_20_senders memory utilization -0.06 [-0.13, -0.00] 1 Logs
quality_gate_idle_all_features memory utilization -0.18 [-0.22, -0.14] 1 Logs bounds checks dashboard
otlp_ingest_metrics memory utilization -0.27 [-0.42, -0.12] 1 Logs
ddot_logs memory utilization -0.33 [-0.39, -0.26] 1 Logs
quality_gate_logs % cpu utilization -0.34 [-1.92, +1.23] 1 Logs bounds checks dashboard
docker_containers_memory memory utilization -0.36 [-0.44, -0.28] 1 Logs
ddot_metrics_sum_delta memory utilization -0.39 [-0.56, -0.23] 1 Logs
quality_gate_metrics_logs memory utilization -0.49 [-0.73, -0.24] 1 Logs bounds checks dashboard
docker_containers_cpu % cpu utilization -2.24 [-5.19, +0.71] 1 Logs

Bounds Checks: ✅ Passed

perf experiment bounds_check_name replicates_passed observed_value links
docker_containers_cpu simple_check_run 10/10 740 ≥ 26
docker_containers_memory memory_usage 10/10 271.52MiB ≤ 370MiB
docker_containers_memory simple_check_run 10/10 699 ≥ 26
file_to_blackhole_0ms_latency memory_usage 10/10 0.19GiB ≤ 1.20GiB
file_to_blackhole_0ms_latency missed_bytes 10/10 0B = 0B
file_to_blackhole_1000ms_latency memory_usage 10/10 0.23GiB ≤ 1.20GiB
file_to_blackhole_1000ms_latency missed_bytes 10/10 0B = 0B
file_to_blackhole_100ms_latency memory_usage 10/10 0.20GiB ≤ 1.20GiB
file_to_blackhole_100ms_latency missed_bytes 10/10 0B = 0B
file_to_blackhole_500ms_latency memory_usage 10/10 0.22GiB ≤ 1.20GiB
file_to_blackhole_500ms_latency missed_bytes 10/10 0B = 0B
quality_gate_idle intake_connections 10/10 3 = 3 bounds checks dashboard
quality_gate_idle memory_usage 10/10 172.15MiB ≤ 175MiB bounds checks dashboard
quality_gate_idle_all_features intake_connections 10/10 3 = 3 bounds checks dashboard
quality_gate_idle_all_features memory_usage 10/10 491.44MiB ≤ 550MiB bounds checks dashboard
quality_gate_logs intake_connections 10/10 3 ≤ 6 bounds checks dashboard
quality_gate_logs memory_usage 10/10 208.18MiB ≤ 220MiB bounds checks dashboard
quality_gate_logs missed_bytes 10/10 0B = 0B bounds checks dashboard
quality_gate_metrics_logs cpu_usage 10/10 354.84 ≤ 2000 bounds checks dashboard
quality_gate_metrics_logs intake_connections 10/10 4 ≤ 6 bounds checks dashboard
quality_gate_metrics_logs memory_usage 10/10 402.23MiB ≤ 475MiB bounds checks dashboard
quality_gate_metrics_logs missed_bytes 10/10 0B = 0B bounds checks dashboard

Explanation

Confidence level: 90.00%
Effect size tolerance: |Δ mean %| ≥ 5.00%

Performance changes are noted in the perf column of each table:

  • ✅ = significantly better comparison variant performance
  • ❌ = significantly worse comparison variant performance
  • ➖ = no significant change in performance

A regression test is an A/B test of target performance in a repeatable rig, where "performance" is measured as "comparison variant minus baseline variant" for an optimization goal (e.g., ingress throughput). Due to intrinsic variability in measuring that goal, we can only estimate its mean value for each experiment; we report uncertainty in that value as a 90.00% confidence interval denoted "Δ mean % CI".

For each experiment, we decide whether a change in performance is a "regression" -- a change worth investigating further -- if all of the following criteria are true:

  1. Its estimated |Δ mean %| ≥ 5.00%, indicating the change is big enough to merit a closer look.

  2. Its 90.00% confidence interval "Δ mean % CI" does not contain zero, indicating that if our statistical model is accurate, there is at least a 90.00% chance there is a difference in performance between baseline and comparison variants.

  3. Its configuration does not mark it "erratic".

CI Pass/Fail Decision

Passed. All Quality Gates passed.

  • quality_gate_idle, bounds check memory_usage: 10/10 replicas passed. Gate passed.
  • quality_gate_idle, bounds check intake_connections: 10/10 replicas passed. Gate passed.
  • quality_gate_metrics_logs, bounds check cpu_usage: 10/10 replicas passed. Gate passed.
  • quality_gate_metrics_logs, bounds check intake_connections: 10/10 replicas passed. Gate passed.
  • quality_gate_metrics_logs, bounds check memory_usage: 10/10 replicas passed. Gate passed.
  • quality_gate_metrics_logs, bounds check missed_bytes: 10/10 replicas passed. Gate passed.
  • quality_gate_idle_all_features, bounds check intake_connections: 10/10 replicas passed. Gate passed.
  • quality_gate_idle_all_features, bounds check memory_usage: 10/10 replicas passed. Gate passed.
  • quality_gate_logs, bounds check memory_usage: 10/10 replicas passed. Gate passed.
  • quality_gate_logs, bounds check missed_bytes: 10/10 replicas passed. Gate passed.
  • quality_gate_logs, bounds check intake_connections: 10/10 replicas passed. Gate passed.

@gh-worker-dd-mergequeue-cf854d gh-worker-dd-mergequeue-cf854d bot merged commit dbf2b24 into main Mar 11, 2026
267 checks passed
@gh-worker-dd-mergequeue-cf854d gh-worker-dd-mergequeue-cf854d bot deleted the regis.desgroppes/prereq-rules-cc-explicit-loads branch March 11, 2026 14:16
@github-actions github-actions bot added this to the 7.78.0 milestone Mar 11, 2026
angel-ddog pushed a commit that referenced this pull request Mar 11, 2026
### What does this PR do?
Bump `rules_cc` from 0.2.8 to 0.2.17 (latest BCR release) and replace implicit global `cc_*` rule usage in our `BUILD.bazel` files with explicit loads from `@rules_cc//cc:defs.bzl`.

### Motivation
Bazel has long deprecated injecting `cc_library`, `cc_shared_library`, `cc_binary`, `cc_import` and `cc_test` as built-in globals.

Making the `load`s explicit is the correct practice regardless of Bazel version, and is a **prerequisite for the upcoming Bazel 9 bump** where those globals are removed entirely.

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
rdesgroppes added a commit that referenced this pull request Mar 11, 2026
### What does this PR do?
Completes the full `rules_cc` migration started in #47716, covering the
cases that were missed: our own .bzl rule files and the `gcc-toolchain`
external dependency.

### Motivation
#47716 covered `BUILD.bazel` files but left several `.bzl` files still
relying on injected globals, absent from Bazel 9+.

### Additional Notes
The additional patch to `gcc-toolchain` will disappear once f0rmiga/gcc-toolchain#217 gets merged.
rdesgroppes added a commit that referenced this pull request Mar 11, 2026
### What does this PR do?
Completes the full `rules_cc` migration started in #47716, covering the
cases that were missed: our own .bzl rule files and the `gcc-toolchain`
external dependency.

### Motivation
#47716 covered `BUILD.bazel` files but left several `.bzl` files still
relying on injected globals, absent from Bazel 9+.

### Additional Notes
The additional patch to `gcc-toolchain` will disappear once f0rmiga/gcc-toolchain#217 gets merged.
gh-worker-dd-mergequeue-cf854d bot pushed a commit that referenced this pull request Mar 12, 2026
### What does this PR do?
Completes the full `rules_cc` migration started in #47716, covering the cases I missed: our own `.bzl` rule files and the `gcc-toolchain` external dependency.

### Motivation
#47716 covered our `BUILD.bazel` files but left other files still relying on injected globals, absent from Bazel 9+.

### Additional Notes
The additional patch to `gcc-toolchain` will disappear once f0rmiga/gcc-toolchain#217 gets merged.

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
rdesgroppes added a commit that referenced this pull request Mar 23, 2026
### What does this PR do?

Upgrades the Bazel toolchain from 8.6.0 to 9.0.1.

### Motivation

9.0.1 ships two upstream fixes that directly benefit our build:

- bazelbuild/bazel#28606: NPE when `--repo_env` is set to an env var
  that has no value — contributed by Datadog (Joseph Gette).
- bazelbuild/bazel#26842: `DefaultSyscallCache` incorrectly treated
  `BUILD` files and `build` directories as the same entry on
  case-insensitive / normalizing filesystems (e.g. Linux container on
  a macOS host), causing spurious build failures.

### Describe how you validated your changes

`bazel test //...` passes.

### Additional Notes

Groundwork landed in advance:
- #47716: Bump `rules_cc` with explicit loads for Bazel 9
- #47745: Fix `rules_cc` leftovers from #47716 for Bazel 9
- #47982: Add explicit `cc_static_library` import for Bazel 9
- #48016: Add explicit `py_binary` import for Bazel 9
- #48071: Bump `rules_foreign_cc` for Bazel 9 fixes
- #48082: Bump `rules_python` to 1.9.0 and fix misuses spotted on Windows
- #48183: Fix Python hermetic toolchain check for Bazel 9
- #48186: Disable `repo_contents_cache` when in-workspace for Bazel 9
- #48228: Bump `protobuf` Bazel dep to 34.1
rdesgroppes added a commit that referenced this pull request Mar 24, 2026
### What does this PR do?

Upgrades the Bazel toolchain from 8.6.0 to 9.0.1.

### Motivation

9.0.1 ships two upstream fixes that directly benefit our build:

- bazelbuild/bazel#28606: NPE when `--repo_env` is set to an env var
  that has no value — contributed by Datadog (Joseph Gette).
- bazelbuild/bazel#26842: `DefaultSyscallCache` incorrectly treated
  `BUILD` files and `build` directories as the same entry on
  case-insensitive / normalizing filesystems (e.g. Linux container on
  a macOS host), causing spurious build failures.

### Describe how you validated your changes

`bazel test //...` passes.

### Additional Notes

Groundwork landed in advance:
- #47716: Bump `rules_cc` with explicit loads for Bazel 9
- #47745: Fix `rules_cc` leftovers from #47716 for Bazel 9
- #47982: Add explicit `cc_static_library` import for Bazel 9
- #48016: Add explicit `py_binary` import for Bazel 9
- #48071: Bump `rules_foreign_cc` for Bazel 9 fixes
- #48082: Bump `rules_python` to 1.9.0 and fix misuses spotted on Windows
- #48183: Fix Python hermetic toolchain check for Bazel 9
- #48186: Disable `repo_contents_cache` when in-workspace for Bazel 9
- #48228: Bump `protobuf` Bazel dep to 34.1
gh-worker-dd-mergequeue-cf854d bot pushed a commit that referenced this pull request Mar 24, 2026
### What does this PR do?
Upgrade `bazel` from 8.6.0 to 9.0.1.

### Motivation
Bazel 9.0.1 ships upstream fixes that directly benefit our build & developer experience:
- bazelbuild/bazel#26842: `BUILD` files and `build` directories were incorrectly treated as the same entry on case-insensitive filesystems (e.g., Linux container running on a macOS host), causing spurious build failures (esp. for `rloader` we had to `gazelle`-exclude because of that),
- bazelbuild/bazel#27695: a contribution of ours (also available in 8.6.0 as bazelbuild/bazel#28367) - nice to have when sharing a folder between a Linux host and a Windows VM through `virtiofs`,
- bazelbuild/bazel#28640: another contribution of ours (@JSGette) - critical because it what preventing us from switching to Bazel 9 (ADMS config).

### Describe how you validated your changes
`bazel test //...` passes.

### Additional Notes
Groundwork landed in advance:
- #47716
- #47745
- #47982
- #48016
- #48071
- #48082
- #48183
- #48186
- #48200 (>= Bazel 9 min)
- #48201 (>= Bazel 9 min)
- #48228 (>= Bazel 9 min)

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
aya-shimizu24 pushed a commit that referenced this pull request Mar 24, 2026
### What does this PR do?
Upgrade `bazel` from 8.6.0 to 9.0.1.

### Motivation
Bazel 9.0.1 ships upstream fixes that directly benefit our build & developer experience:
- bazelbuild/bazel#26842: `BUILD` files and `build` directories were incorrectly treated as the same entry on case-insensitive filesystems (e.g., Linux container running on a macOS host), causing spurious build failures (esp. for `rloader` we had to `gazelle`-exclude because of that),
- bazelbuild/bazel#27695: a contribution of ours (also available in 8.6.0 as bazelbuild/bazel#28367) - nice to have when sharing a folder between a Linux host and a Windows VM through `virtiofs`,
- bazelbuild/bazel#28640: another contribution of ours (@JSGette) - critical because it what preventing us from switching to Bazel 9 (ADMS config).

### Describe how you validated your changes
`bazel test //...` passes.

### Additional Notes
Groundwork landed in advance:
- #47716
- #47745
- #47982
- #48016
- #48071
- #48082
- #48183
- #48186
- #48200 (>= Bazel 9 min)
- #48201 (>= Bazel 9 min)
- #48228 (>= Bazel 9 min)

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
StephenWakely pushed a commit that referenced this pull request Mar 27, 2026
### What does this PR do?
Upgrade `bazel` from 8.6.0 to 9.0.1.

### Motivation
Bazel 9.0.1 ships upstream fixes that directly benefit our build & developer experience:
- bazelbuild/bazel#26842: `BUILD` files and `build` directories were incorrectly treated as the same entry on case-insensitive filesystems (e.g., Linux container running on a macOS host), causing spurious build failures (esp. for `rloader` we had to `gazelle`-exclude because of that),
- bazelbuild/bazel#27695: a contribution of ours (also available in 8.6.0 as bazelbuild/bazel#28367) - nice to have when sharing a folder between a Linux host and a Windows VM through `virtiofs`,
- bazelbuild/bazel#28640: another contribution of ours (@JSGette) - critical because it what preventing us from switching to Bazel 9 (ADMS config).

### Describe how you validated your changes
`bazel test //...` passes.

### Additional Notes
Groundwork landed in advance:
- #47716
- #47745
- #47982
- #48016
- #48071
- #48082
- #48183
- #48186
- #48200 (>= Bazel 9 min)
- #48201 (>= Bazel 9 min)
- #48228 (>= Bazel 9 min)

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
StephenWakely pushed a commit that referenced this pull request Mar 27, 2026
### What does this PR do?
Upgrade `bazel` from 8.6.0 to 9.0.1.

### Motivation
Bazel 9.0.1 ships upstream fixes that directly benefit our build & developer experience:
- bazelbuild/bazel#26842: `BUILD` files and `build` directories were incorrectly treated as the same entry on case-insensitive filesystems (e.g., Linux container running on a macOS host), causing spurious build failures (esp. for `rloader` we had to `gazelle`-exclude because of that),
- bazelbuild/bazel#27695: a contribution of ours (also available in 8.6.0 as bazelbuild/bazel#28367) - nice to have when sharing a folder between a Linux host and a Windows VM through `virtiofs`,
- bazelbuild/bazel#28640: another contribution of ours (@JSGette) - critical because it what preventing us from switching to Bazel 9 (ADMS config).

### Describe how you validated your changes
`bazel test //...` passes.

### Additional Notes
Groundwork landed in advance:
- #47716
- #47745
- #47982
- #48016
- #48071
- #48082
- #48183
- #48186
- #48200 (>= Bazel 9 min)
- #48201 (>= Bazel 9 min)
- #48228 (>= Bazel 9 min)

Co-authored-by: regis.desgroppes <regis.desgroppes@datadoghq.com>
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