Проект OpenNet: MAN gelf_getrela (3) Библиотечные вызовы (FreeBSD и Linux)

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gelf_getrela (3)

>> gelf_getrela (3) ( FreeBSD man: Библиотечные вызовы )

BSD mandoc

NAME

gelf_getrela

 
gelf_update_rela

 - read and update ELF relocation entries with addends

LIBRARY

Lb libelf

SYNOPSIS

#include <gelf.h>
GElf_Rela * gelf_getrela (Elf_Data *data int ndx GElf_Rela *rela);
int gelf_update_rela (Elf_Data *data int ndx GElf_Rela *rela);

DESCRIPTION

These convenience functions are used to retrieve and update class-dependent Vt Elf32_Rela or Vt Elf64_Rela structures in an ELF object.

Argument data is an Vt Elf_Data descriptor associated with a section of type SHT_RELA Argument ndx is the index of the entry being retrieved or updated. The class-independent Vt GElf_Rela structure is described in gelf(3).

Function gelf_getrela ();
retrieves the class-dependent entry at index ndx in data buffer data and copies it to the destination pointed to by argument rela after translation to class-independent form.

Function gelf_update_rela ();
converts the class-independent entry pointed to by argument rela to class-dependent form, and writes it to the entry at index ndx in the data buffer described by argument data Function gelf_update_rela ();
signals an error if any of the values in the class-independent representation exceeds the representable limits of the target type.

RETURN VALUES

Function gelf_getrela ();
returns the value of argument rela if successful, or NULL in case of an error. Function gelf_update_rela ();
returns a non-zero value if successful, or zero in case of an error.

ERRORS

These functions may fail with the following errors:

Bq Er ELF_E_ARGUMENT: Arguments data or rela were NULL.
Bq Er ELF_E_ARGUMENT: Argument ndx was less than zero or larger than the number of entries in the data descriptor.
Bq Er ELF_E_ARGUMENT: Data descriptor data was not associated with a section of type SHT_RELA
Bq Er ELF_E_RANGE: A value was not representable in the target type.

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Created 1996-2024 by Maxim Chirkov
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