Using LD_PRELOAD to cheat, inject features and investigate programs
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Submission timeline
2007–2026One slot for every year since HN launched. Height is that year's peak points; orange marks a 100+ point or 50+ comment breakout. Select a bar to open its strongest thread.
First comments on top threads
HN comment orderThis reminds me of the first internship I did. It was at an AI based anamoly detection startup. Their pipeline for the biggest client used to run in just under 3 hours, most of which was apparently spent extracting meaningful information from sensor data from a proprietary binary format using a shared library provided by the client. Ran it under perf and found that most of the time was spent calculating a bunch of sines and cosines. Used the LD_PRELOAD…
Interesting projects that employ LD_PRELOAD: https://github.com/stewartsmith/libeatmydata https://github.com/wolfcw/libfaketime https://cwrap.org/ https://github.com/dex4er/fakechroot https://blitiri.com.ar/p/libfiu/ https://github.com/paultag/tmperamental
The first top-level comment from each of the four biggest threads, in HN’s own order. Excerpts are shortened; open a comment for full context.
- Breakout years
- 2
- Total points
- 353
- Total comments
- 194
100+ points or 50+ comments
reference only — not used in Hall rules or ranking
reference only — not used in Hall rules or ranking
Every submission
| Date | Title as submitted | By | Points | Comments |
|---|---|---|---|---|
| 2016-05-08 | Using LD_PRELOAD to cheat, inject features and investigate programs | enedil | 5 | 0 |
| 2017-04-19 | Using LD_PRELOAD to cheat, inject features and investigate programs | chatmasta | 3 | 0 |
| 2017-05-30 | Dynamic linking trick to inject behavior into programs | partycoder | 1 | 0 |
| 2017-12-04 | Using LD_PRELOAD to cheat, inject features and investigate programs (2013)First breakout | striking | 142 | 86 |
| 2023-09-08 | Using LD_PRELOAD to cheat, inject features and investigate programsHall induction · Best thread · Latest 20+ point return | icyfox | 202 | 108 |