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GELF_UPDATE_EHDR(3)	 BSD Library Functions Manual	   GELF_UPDATE_EHDR(3)

NAME
     gelf_update_ehdr, gelf_update_phdr, gelf_update_shdr -- update underlying
     ELF data structures

LIBRARY
     ELF Access	Library	(libelf, -lelf)

SYNOPSIS
     #include <gelf.h>

     int
     gelf_update_ehdr(Elf *elf,	GElf_Ehdr *ehdr);

     int
     gelf_update_phdr(Elf *elf,	int ndx, GElf_Phdr *phdr);

     int
     gelf_update_shdr(Elf_Scn *scn, GElf_Shdr *shdr);

DESCRIPTION
     These functions are used to update	ELF data structures on the underlying
     ELF descriptor.  Class-dependent data structures in the underlying	ELF
     descriptor	are updated using the data in the class-independent GElf de-
     scriptors and the underlying ELF data structures are marked "dirty".  The
     conversion	process	signals	an error if the	values being copied to the
     target ELF	data structure would exceed representation limits.  GElf de-
     scriptors are described in	gelf(3).

     Function gelf_update_ehdr() updates the ELF Executable Header with	the
     values in the class-independent executable	header ehdr.

     Function gelf_update_phdr() updates the ELF Program Header	structure at
     index ndx with the	values in the class-independent	program	header phdr.

     Function gelf_update_shdr() updates the ELF Section Header	structure as-
     sociated with section descriptor scn with the values in argument shdr.

RETURN VALUES
     These functions return a non-zero integer on success, or zero in case of
     an	error.

ERRORS
     These functions may fail with the following errors:

     [ELF_E_ARGUMENT]  Arguments elf, ehdr, phdr, scn, or shdr were NULL.

     [ELF_E_ARGUMENT]  Argument	elf was	not a descriptor for an	ELF object.

     [ELF_E_ARGUMENT]  Argument	elf had	an unsupported ELF class.

     [ELF_E_ARGUMENT]  Argument	ndx exceeded the number	of entries in the pro-
		       gram header table.

     [ELF_E_ARGUMENT]  Section descriptor scn was not associated with an ELF
		       descriptor.

     [ELF_E_MODE]      ELF descriptor elf was not opened for writing or	updat-
		       ing.

     [ELF_E_RESOURCE]  An out of memory	condition was detected.

SEE ALSO
     elf(3), elf_flagelf(3), elf_flagphdr(3), elf_flagshdr(3), gelf(3),
     gelf_getehdr(3), gelf_getphdr(3), gelf_getshdr(3)

BSD				August 27, 2006				   BSD

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | ERRORS | SEE ALSO

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