Technical Reference: Base Operating System and Extensions, Volume 1

elf32_fsize, elf64_fsize Subroutine

Library

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

Syntax

size_t elf32_fsize(Elf_Type type , size_tcount, unsigned ver); size_t elf64_fsize(Elf_Type type, size_tcount , unsigned ver);

elf32_fsize gives the size in bytes of the 32-bit file representation of count data objects with the given type. elf64_fsize gives the size in bytes of the 64-bit file representation of count data objects with the given type. The library uses version ver to calculate the size [see the elf_version subroutine.

Constant values are available for the sizes of fundamental types.

Elf_Type	File Size	Memory Size
`ELF_T_ADDR`	`ELF32_FSZ_ADDR`	`sizeof(Elf32_Addr)`
`ELF_T_BYTE`	`1`	`sizeof(unsigned char)`
`ELF_T_HALF`	`ELF32_FSZ_HALF`	`sizeof(Elf32_Half)`
`ELF_T_OFF`	`ELF32_FSZ_OFF`	`sizeof(Elf32_Off)`
`ELF_T_SWORD`	`ELF32_FSZ_SWORD`	`sizeof(Elf32_Sword)`
`ELF_T_WORD`	`ELF32_FSZ_WORD`	`sizeof(Elf32_Word)`

Elf_Type	File Size	Memory Size
`ELF_T_ADDR`	`ELF64_FSZ_ADDR`	`sizeof(Elf64_Addr)`
`ELF_T_BYTE`	`1`	`sizeof(unsigned char)`
`ELF_T_HALF`	`ELF64_FSZ_HALF`	`sizeof(Elf64_Half)`
`ELF_T_OFF`	`ELF64_FSZ_OFF`	`sizeof(Elf64_Off)`
`ELF_T_SWORD`	`ELF64_FSZ_SWORD`	`sizeof(Elf64_Sword)`
`ELF_T_WORD`	`ELF64_FSZ_WORD`	`sizeof(Elf64_Word)`
`ELF_T_SXWORD`	`ELF64_FSZ_SXWORD`	`sizeof(Elf64_Sxword)`
`ELF_T_XWORD`	`ELF64_FSZ_XWORD`	`sizeof(Elf64_Xword)`

Return Values

elf32_fsize and elf64_fsize return zero if the value of type or ver is unknown.

Related Information

The elf_version subroutine.