Cherry pick PR #9040: Add script to be able to debug evergreen-x64 with vscode

[cobalt-github-releaser-bot]

Refer to the original PR: #9040

Fixed: 483449996

[github-actions]

🤖 Gemini Suggested Commit Message

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Evergreen: Add VSCode debug helper script

Introduce a GDB Python script to automate symbol loading for
Evergreen shared libraries. This script hooks into the Evergreen
loader to detect when an ELF file is loaded, then uses
'add-symbol-file' with the correct memory offset.

This enhancement simplifies the debugging experience for Evergreen
components in environments like VSCode, where manually loading
symbols for dynamically mapped libraries is cumbersome.

Bug: 483449996

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[gemini-code-assist]

Code Review

This pull request cherry-picks a Python script for GDB to assist in debugging Cobalt Evergreen builds with VSCode, automatically loading symbols for dynamically loaded libraries. A medium-severity command injection vulnerability has been identified in the new GDB script, stemming from the construction of a GDB command with unvalidated input from the debugged process. The current sanitization is insufficient, requiring more robust input validation. Furthermore, the code review suggests improving the script's initialization to handle cases where the target breakpoint symbol might not be found, enhancing its robustness.

[andrewsavage1]

/gemini review

[gemini-code-assist]

Code Review

This pull request is a cherry-pick of an upstream change, as indicated in the title and description. Per the repository's style guide (lines 11-17), detailed code style reviews are skipped for such changes since they have been reviewed in the original source. This review, therefore, focused on the correct application of the patch. The new Python script (starboard/tools/vscode_debug_evergreen.py) has been added correctly, and a high-level assessment indicates it is a well-contained and useful debugging utility. No issues were found with the application of this change.