man pages section 3: Extended Library Functions, Volume 1

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Updated: July 2014
 
 

elf64_getshdr(3ELF)

Name

elf32_getshdr, elf64_getshdr - retrieve class-dependent section header

Synopsis

cc [ flag ... ] file ... –lelf [ library ... ]
#include <libelf.h>

Elf32_Shdr *elf32_getshdr(Elf_Scn *scn);
Elf64_Shdr *elf64_getshdr(Elf_Scn *scn);

Description

For a 32-bit class file, elf32_getshdr() returns a pointer to a section header for the section descriptor scn. Otherwise, the file is not a 32-bit class file, scn was NULL, or an error occurred; elf32_getshdr() then returns NULL.

The elf32_getshdr header includes the following members:

Elf32_Word	sh_name;
Elf32_Word	sh_type;
Elf32_Word	sh_flags;
Elf32_Addr	sh_addr;
Elf32_Off	sh_offset;
Elf32_Word	sh_size;
Elf32_Word	sh_link;
Elf32_Word	sh_info;
Elf32_Word	sh_addralign;
Elf32_Word	sh_entsize;

while the elf64_getshdr header includes the following members:

Elf64_Word	sh_name;
Elf64_Word	sh_type;
Elf64_Xword	sh_flags;
Elf64_Addr	sh_addr;
Elf64_Off	sh_offset;
Elf64_Xword	sh_size;
Elf64_Word	sh_link;
Elf64_Word	sh_info;
Elf64_Xword	sh_addralign;
Elf64_Xword	sh_entsize;

For the 64−bit class, replace 32 with 64 as appropriate.

If the program is building a new file, it is responsible for creating the file's ELF header before creating sections.

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
Interface Stability
Committed
MT-Level
MT-Safe

See Also

elf(3ELF), elf_flagdata(3ELF), elf_getscn(3ELF), elf_strptr(3ELF), libelf(3LIB), attributes (5)