feat: introduce allocative

[quininer]

Summary

This introduces allocative to debug memory leaks caused by global variables. when enabled, a global variable memory snapshot will be generated each rebuild.

This requires enable the feature at build time using env ALLOCATIVE=1 and specify the output directory at runtime use env RSPACK_ALLOCATIVE_DIR="$DIR".

The output can then be visualized as svg.

to svg: cat allocative.0.flamegraph | inferno-flamegraph > 0.svg
diff: inferno-diff-folded allocative.0.flamegraph allocative.1.flamegraph | inferno-flamegraph > diff0v1.svg

Related links

Checklist

• Tests updated (or not required).
• Documentation updated (or not required).

[netlify]

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[Copilot]

Pull Request Overview

This PR introduces allocative debugging capabilities to help identify memory leaks caused by global variables. The implementation adds conditional compilation support for allocative features and generates memory snapshots during rebuilds for visualization.

• Adds allocative dependency and conditional compilation flags across multiple crates
• Implements memory profiling hooks that generate flamegraph data during compilation rebuilds
• Enables allocative annotations on key data structures and global static variables

Reviewed Changes

Copilot reviewed 36 out of 37 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
Cargo.toml	Adds workspace-level allocative dependency and lint configuration
crates/node_binding/scripts/build.js	Adds build-time flag support for enabling allocative features
crates/rspack_core/src/compiler/rebuild.rs	Implements memory snapshot generation during rebuild process
Multiple crates/*/Cargo.toml	Adds allocative lint configuration to individual crates
Multiple crates//src/.rs	Adds allocative derive macros and root annotations to structs and statics

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[github-actions]

📦 Binary Size-limit

Comparing b036650 to refactor: consolidate ModuleError and ModuleWarning classes (#11935) by neverland

🙈 Size remains the same at 47.73MB

[codspeed-hq]

CodSpeed Performance Report

Merging #11927 will not alter performance

_{Comparing debug/impl-allocative (b036650) with main (126822e)}

Summary

✅ 17 untouched