gelf_getclass - Man Page

return the ELF class (32-bit or 64-bit) for an object

Synopsis

#include <gelf.h>

int gelf_getclass(Elf *elf);

Description

gelf_getclass() returns the class of the ELF object referenced by elf. The class of a valid ELF file will be one of:

ELFCLASS32

The object is a 32-bit ELF class.

ELFCLASS64

The object is a 64-bit ELF class.

If elf does not denote a valid ELF object, or the class cannot be determined, ELFCLASSNONE is returned.

Return Value

Returns ELFCLASS32 or ELFCLASS64 on success. If elf is NULL or does not refer to a valid ELF binary with kind ELF_K_ELF, then ELFCLASSNONE is returned.

See Also

elf_kind(3), libelf(3), elf(5)

Attributes

InterfaceAttributeValue
gelf_getclass()Thread safetyMT-unsafe race

Reporting Bugs

Report bugs to <elfutils-devel@sourceware.org> or https://sourceware.org/bugzilla/.

Info

2025-09-14 Libelf Programmer's Manual