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.\" Copyright (c) 2010 Kai Wang
.\" 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 THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR OR CONTRIBUTORS 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.
.\"
.\" $Id: dwarf_diename.3 2073 2011-10-27 03:30:47Z jkoshy $
.\"
.Dd March 31, 2010
.Os
.Dt DWARF_DIENAME 3
.Sh NAME
.Nm dwarf_diename
.Nd retrieve the name associated with a debugging information entry
.Sh LIBRARY
.Lb libdwarf
.Sh SYNOPSIS
.In libdwarf.h
.Ft int
.Fn dwarf_diename "Dwarf_Die die" "char **ret_name" "Dwarf_Error *err"
.Sh DESCRIPTION
Function
.Fn dwarf_diename
retrieves a pointer to the NUL-terminated string associated with the
.Dv DW_AT_name
attribute of the debugging information entry descriptor referenced by
argument
.Ar die .
If the pointer was successfully retrieved, it is stored in the location
pointed to by argument
.Ar ret_name .
.Sh RETURN VALUES
Function
.Fn dwarf_diename
returns
.Dv DW_DLV_OK on success.
.Pp
If the debugging information entry descriptor denoted by argument
.Ar die
does not contain a
.Dv DW_AT_name
attribute, the function returns
.Dv DW_DLV_NO_ENTRY
and sets argument
.Ar err .
For other errors, it returns
.Dv DW_DLV_ERROR
and sets argument
.Ar err .
.Sh ERRORS
Function
.Fn dwarf_diename
can fail with the following errors:
.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
.It Bq Er DW_DLE_ARGUMENT
Either of arguments
.Ar die
or
.Ar ret_name
was NULL.
.It Bq Er DW_DLE_NO_ENTRY
Argument
.Ar die
had no
.Dv DW_AT_name
attribute.
.El
.Sh SEE ALSO
.Xr dwarf 3 ,
.Xr dwarf_tag 3 ,
.Xr dwarf_dieoffset 3 ,
.Xr dwarf_die_abbrev_code 3
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