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-.\" Copyright (c) 2006 Joseph Koshy.  All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\"    notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\"    notice, this list of conditions and the following disclaimer in the
-.\"    documentation and/or other materials provided with the distribution.
-.\"
-.\" This software is provided by Joseph Koshy ``as is'' and
-.\" any express or implied warranties, including, but not limited to, the
-.\" implied warranties of merchantability and fitness for a particular purpose
-.\" are disclaimed.  in no event shall Joseph Koshy be liable
-.\" for any direct, indirect, incidental, special, exemplary, or consequential
-.\" damages (including, but not limited to, procurement of substitute goods
-.\" or services; loss of use, data, or profits; or business interruption)
-.\" however caused and on any theory of liability, whether in contract, strict
-.\" liability, or tort (including negligence or otherwise) arising in any way
-.\" out of the use of this software, even if advised of the possibility of
-.\" such damage.
-.\"
-.\" $FreeBSD$
-.\"
-.Dd August 29, 2006
-.Dt GELF_GETREL 3
-.Os
-.Sh NAME
-.Nm gelf_getrel ,
-.Nm gelf_update_rel
-.Nd read and update ELF relocation entries
-.Sh LIBRARY
-.Lb libelf
-.Sh SYNOPSIS
-.In gelf.h
-.Ft "GElf_Rel *"
-.Fn gelf_getrel "Elf_Data *data" "int ndx" "GElf_Rel *rel"
-.Ft int
-.Fn gelf_update_rel "Elf_Data *data" "int ndx" "GElf_Rel *rel"
-.Sh DESCRIPTION
-These convenience functions are used to retrieve and update class-dependent
-.Vt Elf32_Rel
-or
-.Vt Elf64_Rel
-structures in an ELF object.
-.Pp
-Argument
-.Ar data
-is an
-.Vt Elf_Data
-descriptor associated with a section of type
-.Dv SHT_REL .
-Argument
-.Ar ndx
-is the index of the entry being retrieved or updated.
-The class-independent
-.Vt GElf_Rel
-structure is described in
-.Xr gelf 3 .
-.Pp
-Function
-.Fn gelf_getrel
-retrieves the class-dependent entry at index
-.Ar ndx
-in data buffer
-.Ar data
-and copies it to the destination pointed to by argument
-.Ar rel
-after translation to class-independent form.
-.Pp
-Function
-.Fn gelf_update_rel
-converts the class-independent entry pointed to
-by argument
-.Ar rel
-to class-dependent form, and writes it to the entry at index
-.Ar ndx
-in the data buffer described by argument
-.Ar data .
-Function
-.Fn gelf_update_rel
-signals an error if any of the values in the class-independent
-representation exceeds the representable limits of the target
-type.
-.Sh RETURN VALUES
-Function
-.Fn gelf_getrel
-returns the value of argument
-.Ar rel
-if successful, or NULL in case of an error.
-Function
-.Fn gelf_update_rel
-returns a non-zero value if successful, or zero in case of an error.
-.Sh ERRORS
-These functions may fail with the following errors:
-.Bl -tag -width "[ELF_E_RESOURCE]"
-.It Bq Er ELF_E_ARGUMENT
-Arguments
-.Ar data
-or
-.Ar rel
-were NULL.
-.It Bq Er ELF_E_ARGUMENT
-Argument
-.Ar ndx
-was less than zero or larger than the number of entries in the data
-descriptor.
-.It Bq Er ELF_E_ARGUMENT
-Data descriptor
-.Ar data
-was not associated with a section of type
-.Dv SHT_REL .
-.It Bq Er ELF_E_RANGE
-A value was not representable in the target type.
-.El
-.Sh SEE ALSO
-.Xr elf 3 ,
-.Xr elf_getdata 3 ,
-.Xr elf_getscn 3 ,
-.Xr gelf 3