When the text below refers to a relocation entry's relocation type or symbol table index, it means the result of applying ELF32_R_TYPE (or ELF64_R_TYPE) or ELF32_R_SYM (or …

Apr 23, 2018 · This post is part of Intezers blog series about executable and linkable formats. In this post, we will introduce the concept of ELF relocations and their relationship with symbols. …

A relocation type encodes an operation (how the expression is computed) and a format (how the result is to be applied at the location). In executable files, some relocations are relative.

Relocation types are processor-specific. A relocation entry's relocation type or symbol table index is the result of applying ELF32_R_TYPE or ELF32_R_SYM, respectively, to the entry's r_info …

Sep 15, 2016 · Trying to correctly implement the relocation equations and use all the correct values in the correct way is incredibly challenging. When I encounter op codes and addresses …

If the n_namesz field is not set (e.g., is 0), then there are two sets of notes: one for core files and one for all other ELF types.

An ELF file may only contain relocation entries of one type and the reasons for using one type over the other are typically architecture-dependent. Every relocation sections can contain …

Jun 29, 2025 · Relocation entries in ELF provide the necessary metadata to enable linking multiple object files into a coherent executable or shared library. They describe how and where …

New problem: How to describe this patching? If an addend is used, it is stored in the target address (relocation is not idempotent!) But ELF does not do that... Some libraries have many …

elocation Types 1-21 1-22 Introduction Part 1 describes the iABI object file format, call. d ELF (Executable and Linking Format). Ther. are three main types of object files. A relocatable file …