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Tobias Heider

PROFILE

Tobias Heider

Tobias enhanced cross-platform system programming by contributing to the rust-lang/libc and systemd/systemd repositories. He implemented BSD devname(3) and closefrom support in Rust’s libc crate, expanding BSD syscall coverage and improving file descriptor management across NetBSD, OpenBSD, and DragonFly BSD. His work involved updating C bindings, module declarations, and semver tests to ensure reliable API integration and future compatibility. In systemd/systemd, Tobias addressed a kernel load path handling bug in the Linux stub, refining bootloader logic to preserve parent image integrity during kernel loads. His contributions demonstrated depth in C, Rust, embedded systems, and operating system interface development.

Overall Statistics

Feature vs Bugs

67%Features

Repository Contributions

3Total
Bugs
1
Commits
3
Features
2
Lines of code
88
Activity Months3

Work History

August 2025

1 Commits

Aug 1, 2025

August 2025 — Systemd development focused on reliability of kernel loading path in the Linux stub for systemd/systemd. Delivered a targeted bug fix improving file path handling during kernel load, preventing incorrect memory path usage and preserving the integrity of the parent image information after the load operation. This change enhances stability of kernel loads in Linux stub scenarios and reduces risk of misloaded images during system boot or service initialization.

March 2025

1 Commits • 1 Features

Mar 1, 2025

March 2025 monthly summary for rust-lang/libc focused on cross-platform BSD compatibility improvements. Delivered BSD libc closefrom support across NetBSD, OpenBSD, and DragonFly BSD; implemented function signature in libc modules and updated semver tests to reflect the new API, advancing platform parity and reducing edge-case maintenance for FD management on BSD targets.

February 2025

1 Commits • 1 Features

Feb 1, 2025

February 2025: BSD devname(3) support added to the libc crate, expanding BSD syscall coverage and improving cross-platform compatibility. No major bugs fixed this month.

Activity

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Quality Metrics

Correctness96.6%
Maintainability93.4%
Architecture93.4%
Performance93.4%
AI Usage20.0%

Skills & Technologies

Programming Languages

CRust

Technical Skills

BootloadersC BindingsEmbedded SystemsOperating System InterfacesSystem Programming

Repositories Contributed To

2 repos

Overview of all repositories you've contributed to across your timeline

rust-lang/libc

Feb 2025 Mar 2025
2 Months active

Languages Used

Rust

Technical Skills

C BindingsSystem ProgrammingOperating System Interfaces

systemd/systemd

Aug 2025 Aug 2025
1 Month active

Languages Used

C

Technical Skills

BootloadersEmbedded SystemsSystem Programming

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