[duncanista]

TL;DR: A script that reports ELF section sizes, relocations, linked libraries and size per crate, and compares two binaries.

Why: Binary size and relocations drive the page-ins from the compressed /opt at cold start. When the size changes, this shows which crate it comes from.

Overview

Jira: SVLS-9976

Stacked on #1478 (jordan.gonzalez/dev-patch-deps/feature).

scripts/dev/binary-report.sh (wrapper of binary_report.py) prints a JSON report for a
Linux ELF binary without readelf or cargo bloat, so it also runs on macOS:

• file and section sizes, dynamic relocation counts (.rela.dyn, .relr.dyn), NEEDED
  libraries, BIND_NOW and PIE flags;
• for an unstripped binary, the top crates by .text size from the symbol table;
• --diff old adds the deltas.

The GitLab binary report job later in this stack uses it.

Size: 269 core lines, 288 lines in total.

Testing

• applies on the previous PR of the stack: pass
• shellcheck 0.10.0 on the new scripts: pass
• python3 -m py_compile: pass
• Ran on an unstripped Linux ELF and on a stripped arm64 release binary.

[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-10-28T21:38:05.164290Z	880b92f	New commits
🔒 Security Review	✅ Completed 2026-10-28T21:33:25.146433Z	880b92f	New commits

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