NAME
elf32_getshdr,
elf64_getshdr, gelf_getshdr
— retrieve the class-dependent
section header
LIBRARY
library “libelf”
SYNOPSIS
#include
<libelf.h>
Elf32_Shdr *
elf32_getshdr(Elf_Scn
*scn);
Elf64_Shdr *
elf64_getshdr(Elf_Scn
*scn);
#include
<gelf.h>
GElf_Shdr *
gelf_getshdr(Elf_Scn
*scn, GElf_Shdr
*shdr);
DESCRIPTION
These functions return a pointer to the ELF Section Header data structure associated with section descriptor scn.
Function
elf32_getshdr()
retrieves a pointer to an Elf32_Shdr structure.
Section descriptor scn must be associated with an ELF
descriptor of class ELFCLASS32.
Function
elf64_getshdr()
retrieves a pointer to an Elf64_Shdr structure.
Section descriptor scn must be associated with an ELF
descriptor of class ELFCLASS64.
Function
gelf_getshdr()
copies the values in the section header associated with argument
scn to the structure pointed to be argument
dst. The GElf_Shdr data
structure is described in
gelf(3).
RETURN VALUES
Functions elf32_getshdr() and
elf64_getshdr() return a valid pointer to the
appropriate section header on success or NULL if an error was
encountered.
Function gelf_getshdr() returns argument
dst if successful, or NULL if an error was
encountered.
ERRORS
These functions may fail with the following errors:
- [
ELF_E_ARGUMENT] - Arguments scn or shdr were NULL.
- [
ELF_E_ARGUMENT] - Argument scn was not associated a descriptor for an ELF object.
- [
ELF_E_CLASS] - The ELF class associated with the section descriptor scn did not match the class expected by the API.