gelf_getchdr3

Usage

Library

library “libelf”

Overview

These functions return a pointer to the ELF Compression Header data structure associated with section descriptor scn.

Function elf32_getchdr() retrieves a pointer to an Elf32_Chdr structure. Section descriptor scn must be associated with an ELF descriptor of class ELFCLASS32.

Function elf64_getchdr() retrieves a pointer to an Elf64_Chdr structure. Section descriptor scn must be associated with an ELF descriptor of class ELFCLASS64.

Function gelf_getchdr() copies the values in the compression header associated with argument scn to the structure pointed to be argument dst. The GElf_Chdr data structure is described in gelf(3).

Return values

Functions elf32_getchdr() and elf64_getchdr() return a valid pointer to the appropriate compression header on success or NULL if an error was encountered.

Function gelf_getchdr() returns argument dst if successful, or NULL if an error was encountered.

Errors

These functions may fail with the following errors:

[ELF_E_INVALID_SECTION_FLAGS]

Arguments scn has invalid flags.

[ELF_E_INVALID_SECTION_TYPE]

Argument scn has invalid type.

[ELF_E_NOT_COMPRESSED]

Argument scn is not compressed.