1.\" Copyright (c) 2010 Kai Wang
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25.\" $Id: dwarf_diename.3 3644 2018-10-15 19:55:01Z jkoshy $
26.\"
27.Dd March 31, 2010
28.Dt DWARF_DIENAME 3
29.Os
30.Sh NAME
31.Nm dwarf_diename
32.Nd retrieve the name associated with a debugging information entry
33.Sh LIBRARY
34.Lb libdwarf
35.Sh SYNOPSIS
36.In libdwarf.h
37.Ft int
38.Fn dwarf_diename "Dwarf_Die die" "char **ret_name" "Dwarf_Error *err"
39.Sh DESCRIPTION
40Function
41.Fn dwarf_diename
42retrieves a pointer to the NUL-terminated string associated with the
43.Dv DW_AT_name
44attribute of the debugging information entry descriptor referenced by
45argument
46.Ar die .
47If the pointer was successfully retrieved, it is stored in the location
48pointed to by argument
49.Ar ret_name .
50.Sh RETURN VALUES
51Function
52.Fn dwarf_diename
53returns
54.Dv DW_DLV_OK
55on success.
56.Pp
57If the debugging information entry descriptor denoted by argument
58.Ar die
59does not contain a
60.Dv DW_AT_name
61attribute, the function returns
62.Dv DW_DLV_NO_ENTRY
63and sets argument
64.Ar err .
65For other errors, it returns
66.Dv DW_DLV_ERROR
67and sets argument
68.Ar err .
69.Sh ERRORS
70Function
71.Fn dwarf_diename
72can fail with the following errors:
73.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
74.It Bq Er DW_DLE_ARGUMENT
75Either of arguments
76.Ar die
77or
78.Ar ret_name
79was NULL.
80.It Bq Er DW_DLE_NO_ENTRY
81Argument
82.Ar die
83had no
84.Dv DW_AT_name
85attribute.
86.El
87.Sh SEE ALSO
88.Xr dwarf 3 ,
89.Xr dwarf_die_abbrev_code 3 ,
90.Xr dwarf_dieoffset 3 ,
91.Xr dwarf_tag 3
92