Aug 20, 2024 · Fundamentals

Why Does Your Executable Size Vary? Understanding BSS, Data, and Text Segments

An overview of the BSS, data, and text segments in program memory—explaining their roles for uninitialized, initialized global variables and executable code, plus heap and stack basics, illustrated with C examples that show how segment placement affects binary size.

Data SegmentHeapStack

0 likes · 7 min read

Why Does Your Executable Size Vary? Understanding BSS, Data, and Text Segments

iQIYI Technical Product Team

Dec 1, 2017 · Mobile Development

Controlling __TEXT Segment Size in iOS Apps: Practices, Tools, and Metrics

The article explains how iOS engineers keep the __TEXT segment under Apple’s strict size limits by removing unused code, using Link Map analysis, applying a custom SizeLine metric, and adopting coding practices such as limiting blocks, macros, and hard‑coded strings, all supported by automated monitoring and feedback.

Code OptimizationLink Mapbinary size

0 likes · 11 min read

Controlling __TEXT Segment Size in iOS Apps: Practices, Tools, and Metrics