espressif/llvm-project
Dec 2024 – Jan 2025
2 Months active
Languages Used
C++Assembly
Technical Skills
Binary OptimizationCommand-Line Interface DesignCompiler DevelopmentBinary RewritingLow-Level OptimizationTesting
Peter Waller
PROFILE
Peter Waller
Worked on the espressif/llvm-project repository to enhance BOLT’s binary optimization capabilities for embedded builds. Developed a new command-line interface option in C++ and Assembly that allows precise byte padding before function bodies, ensuring correct behavior in relocation mode and robust error handling for alignment violations. Addressed a bug to guarantee independent handling of before and after function padding, reinforcing code layout reliability. Comprehensive tests were added to validate both feature and bug fix, improving regression safety. The work demonstrated expertise in binary rewriting, low-level optimization, and compiler development, resulting in more predictable and reliable binary layouts for embedded systems.
Overall Statistics
Feature vs Bugs
50%Features
Repository Contributions
2Total
Bugs
1
Commits
2
Features
1
Lines of code
213
Activity Months2
Your Network
664 peopleSame Organization
@arm.com538
Work History
January 2025
1 Commits
Jan 1, 2025January 2025 monthly summary for espressif/llvm-project focusing on BOLT padding options independence bug fix. Key actions included reintroducing --pad-funcs-before to ensure independent padding for before and after function padding, plus tests to verify correct behavior; resulting in more reliable code layout optimizations and reduced regression risk.
1 Commits
Jan 1, 2025January 2025 monthly summary for espressif/llvm-project focusing on BOLT padding options independence bug fix. Key actions included reintroducing --pad-funcs-before to ensure independent padding for before and after function padding, plus tests to verify correct behavior; resulting in more reliable code layout optimizations and reduced regression risk.
January 2025
December 2024
1 Commits • 1 Features
Dec 1, 2024Month 2024-12 — Delivered a new function-padding control for BOLT within espressif/llvm-project to enhance layout predictability and reliability in embedded builds. Implemented a dedicated CLI option to pad bytes before function bodies, with correct application in relocation mode and robust error handling for invalid padding requests that violate alignment. Added comprehensive tests to validate padding behavior and error scenarios.
December 2024
1 Commits • 1 Features
Dec 1, 2024Month 2024-12 — Delivered a new function-padding control for BOLT within espressif/llvm-project to enhance layout predictability and reliability in embedded builds. Implemented a dedicated CLI option to pad bytes before function bodies, with correct application in relocation mode and robust error handling for invalid padding requests that violate alignment. Added comprehensive tests to validate padding behavior and error scenarios.
Activity
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Quality Metrics
Correctness95.0%
Maintainability80.0%
Architecture80.0%
Performance65.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
AssemblyC++
Technical Skills
Binary OptimizationBinary RewritingCommand-Line Interface DesignCompiler DevelopmentLow-Level OptimizationTesting
Repositories Contributed To
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