facebook/folly
Nov 2024 – Jan 2026
4 Months active
Languages Used
C++Python
Technical Skills
C++ developmentdebuggingsystem programmingDebuggingPython integrationPython development
Riham Selim
PROFILE
Riham Selim
Riham worked on the facebook/folly repository, focusing on stability and feature enhancements for ELF symbolization and Python integration. Over four months, Riham delivered PIE support for the ELF symbolizer by introducing a new type to handle dynamic sections, enabling accurate symbolization of modern binaries. She addressed crash risks in heap profiling for Python 3.12 by implementing thread-local frame objects and introduced a scoped Python312StackWalker to improve stack walking reliability. Using C++ and Python, Riham’s work emphasized robust system programming and debugging, with careful rollouts and targeted fixes that reduced production crash risk and improved cross-version compatibility.
Overall Statistics
Feature vs Bugs
40%Features
Repository Contributions
6Total
Bugs
3
Commits
6
Features
2
Lines of code
31
Activity Months4
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Work History
January 2026
1 Commits
Jan 1, 20262026-01 monthly summary for facebook/folly focused on stability and reliability of ELF symbolization. Delivered a targeted crash-prevention fix by adding boundary checks during ELF section iteration, aligning with existing safeguards elsewhere in the codebase. This work enhances robustness against malformed binaries and reduces production crash surface while maintaining existing performance characteristics.
1 Commits
Jan 1, 20262026-01 monthly summary for facebook/folly focused on stability and reliability of ELF symbolization. Delivered a targeted crash-prevention fix by adding boundary checks during ELF section iteration, aligning with existing safeguards elsewhere in the codebase. This work enhances robustness against malformed binaries and reduces production crash surface while maintaining existing performance characteristics.
January 2026
November 2025
3 Commits • 1 Features
Nov 1, 2025November 2025 (facebook/folly): Focused on stabilizing Python 3.12 stack-walking support and improving cross-version compatibility. Implemented Python312StackWalker with a Take 2 scope to unblock Python 3.12 apps, including targeted changes to weak references and types to reduce build errors. The initial broader integration was rolled back to avoid Python 3.13/3.14 issues, followed by a narrower, safer Take 2 rollout that preserves stability while enabling downstream app upgrades. Result: fewer crashes in Python stack walking and a clearer upgrade path for Python users.
November 2025
3 Commits • 1 Features
Nov 1, 2025November 2025 (facebook/folly): Focused on stabilizing Python 3.12 stack-walking support and improving cross-version compatibility. Implemented Python312StackWalker with a Take 2 scope to unblock Python 3.12 apps, including targeted changes to weak references and types to reduce build errors. The initial broader integration was rolled back to avoid Python 3.13/3.14 issues, followed by a narrower, safer Take 2 rollout that preserves stability while enabling downstream app upgrades. Result: fewer crashes in Python stack walking and a clearer upgrade path for Python users.
June 2025
1 Commits
Jun 1, 2025June 2025: Focused stability improvement for folly's heap profiling path with Python 3.12. Implemented a thread-local frame object to prevent crashes during PyStack walking caused by null thread state, delivering a robust heap profiling experience and improving cross-version reliability. Commit referenced: 5ba18f6a97ad730420d61a203c6698efe0895077 (Fix Crashy PyStack Walking in Python 3.12, S516843).
1 Commits
Jun 1, 2025June 2025: Focused stability improvement for folly's heap profiling path with Python 3.12. Implemented a thread-local frame object to prevent crashes during PyStack walking caused by null thread state, delivering a robust heap profiling experience and improving cross-version reliability. Commit referenced: 5ba18f6a97ad730420d61a203c6698efe0895077 (Fix Crashy PyStack Walking in Python 3.12, S516843).
June 2025
November 2024
1 Commits • 1 Features
Nov 1, 20242024-11: Delivered PIE support for the ELF symbolizer in facebook/folly by introducing a new ElfDyn type to properly handle dynamic sections. This enables accurate symbolization of PIE binaries, improving debugging reliability in production. No major bugs fixed this month. Overall impact: faster issue diagnosis for modern ELF apps and stronger developer productivity. Technologies/skills demonstrated: C++, ELF internals, dynamic sections, symbolizer architecture, and code-level changes verified via commit a5443ac1f9d05bec6c539c5d4a745fe0a5a87863.
November 2024
1 Commits • 1 Features
Nov 1, 20242024-11: Delivered PIE support for the ELF symbolizer in facebook/folly by introducing a new ElfDyn type to properly handle dynamic sections. This enables accurate symbolization of PIE binaries, improving debugging reliability in production. No major bugs fixed this month. Overall impact: faster issue diagnosis for modern ELF apps and stronger developer productivity. Technologies/skills demonstrated: C++, ELF internals, dynamic sections, symbolizer architecture, and code-level changes verified via commit a5443ac1f9d05bec6c539c5d4a745fe0a5a87863.
Activity
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Quality Metrics
Correctness90.0%
Maintainability80.0%
Architecture80.0%
Performance80.0%
AI Usage26.8%
Skills & Technologies
Programming Languages
C++Python
Technical Skills
C++ developmentDebuggingPython developmentPython integrationSoftware architectureSoftware engineeringSystem programmingdebuggingsystem programming
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