.debug_info

Introduction

The .debug_info section of an ELF contains information generated by compilers to describe the source code while debugging by keeping symbols and its type, scope, file, line number, etc. The .debug_info[1] section is one of the main components of DWARF[2][3] debug info files.[4] This is generated by a compiler when -g switch or its variants are used.

Other debug ELF sections

Section Name Description
.debug_types Contains the non-trivial types. Stored as a hash structure so that duplicate type definition can be removed easily.
.debug_str Contains strings that are not placed in the .debug_info and .debug_types sections. The linker merges the string tables to eliminate duplicates.
.debug_aranges Contain range lists to define what pieces of a program's text belong to which subprograms and compilation units.
.debug_loc Contain lists of expressions that describe to the debugger the location of a variable based on the PC value.
.debug_line Contain a description of the mapping from PC values to source locations.
.debug_abbrev Provide the definitions for abbreviation codes used in describing the debug info in the .debug_info and .debug_types sections.
.debug_pubnames Is an index to help fetching of symbol debug information without having to scan object files.
.debug_pubtypes Is an index to help fetching of type information.

References

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