xref: /illumos-gate/usr/src/man/man3elf/elf32_getshdr.3elf (revision b6805bf78d2bbbeeaea8909a05623587b42d58b3)
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Copyright 1989 AT&T Copyright (c) 2001, Sun Microsystems, Inc. All Rights Reserved
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When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
ELF32_GETSHDR 3ELF "Jul 11, 2001"
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 Stable
MT-Level MT-Safe
SEE ALSO

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