This article explains why C/C++ function and global variable addresses are fixed at link time, how modern operating systems provide each process with a private virtual address space, the role of ABI and linker scripts in defining segment layout, and how the loader later maps those virtual addresses to physical memory.
This article explains how linkers determine virtual memory addresses during linking, describes the operating system's per‑process virtual address space, outlines ABI and ELF conventions including default base addresses and linker scripts, and shows how the loader later maps those virtual addresses to physical memory.
This guide explains how to replicate Linux kernel's initcall mechanism in STM32 projects by using function‑pointer sections, modifying the linker script, and defining ordered initialization macros to replace sequential main‑function calls, enabling modular and loosely‑coupled code execution.
This article explains how the size of a Rust‑based Android dynamic library, initially 495 KB, was dramatically reduced to 95 KB through compiler optimization levels, link‑time optimization, panic handling changes, stripping unused sections, and custom linker scripts, providing practical tips for mobile developers.
This article details how the author reduced the size of a Rust‑based Android JNI dynamic library from 495 KB to 95 KB by adjusting compiler optimization levels, enabling LTO, switching panic handling to abort, removing unused strings, applying panic_immediate_abort, and crafting a custom linker script, while providing code snippets and size comparison tables.
This guide explains how GNU ld linker scripts work, covering their purpose, basic concepts like sections, symbols, VMA/LMA, the syntax of SECTIONS, INPUT, OUTPUT, and other commands, with practical examples and code snippets for embedded and desktop ELF binaries.
