ELF_FSIZE(3E)							 ELF_FSIZE(3E)

NAME    [Toc]    [Back]

     elf_fsize:	elf32_fsize elf64_fsize	- return the size of an	object file
     type

SYNOPSIS    [Toc]    [Back]

     cc	[flag ...] file	...  -lelf [library ...]

     #include <libelf.h>

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

     #define _LIBELF_XTND_64
     Elf64_Xword elf64_fsize(Elf_Type type, Elf64_Xword	count, unsigned	ver);

DESCRIPTION    [Toc]    [Back]

     elf32_fsize gives the size	in bytes of the	32-bit file representation of
     count data	objects	with the given type.  The library uses version ver to
     calculate the size	[see elf(3E) and elf_version(3E)].

     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)
	       ELT_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)
			   |		     |
	       ____________|_________________|______________________

     elf32_fsize returns zero if the value of type or ver is unknown.  See
     elf_xlate(3E) for a list of the type values.

     The 64-bit	class works identically, simply	replacing all instances	of 32
     in	the description	and table with 64.

SEE ALSO    [Toc]    [Back]

     elf(3E), elf_version(3E), elf_xlate(3E).

NOTES    [Toc]    [Back]

     The use of	a size_t in a 32-bit compile with elf64_fsize is unfortunate,
     since that	makes it impossible to deal with certain object	files.	If,
     when the 32-bit app is compiled, _LIBELF_XTND_64 is defined, then the
     function interface	changes	to have	64-bit fields.	If _LIBELF_XTND_64 is
     defined at	compile-time, then instead of linking with -lelf, link with
     -lelf_xtnd.  There	is a corresponding -ldwarf_xtnd.  It is	essential that
     a 32-bit application compiled with	_LIBELF_XTND_64	be *entirely* compiled
     with _LIBELF_XTND_64 defined.




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ELF_FSIZE(3E)							 ELF_FSIZE(3E)



     Applications which	are built as 64-bit applications can ignore
     _LIBELF_XTND_64: it has no	effect on them and 64-bit applications always
     link with -lelf never with	-lelf_xtnd.


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