xref: /freebsd/contrib/elftoolchain/libdwarf/dwarf_get_cie_index.3 (revision 41059135ce931c0f1014a999ffabc6bc470ce856)
1.\" Copyright (c) 2011 Kai Wang
2.\" All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\"    notice, this list of conditions and the following disclaimer.
9.\" 2. Redistributions in binary form must reproduce the above copyright
10.\"    notice, this list of conditions and the following disclaimer in the
11.\"    documentation and/or other materials provided with the distribution.
12.\"
13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23.\" SUCH DAMAGE.
24.\"
25.\" $Id: dwarf_get_cie_index.3 2071 2011-10-27 03:20:00Z jkoshy $
26.\"
27.Dd May 22, 2011
28.Os
29.Dt DWARF_GET_CIE_INDEX 3
30.Sh NAME
31.Nm dwarf_get_cie_index
32.Nd retrieve the index of a CIE descriptor
33.Sh LIBRARY
34.Lb libdwarf
35.Sh SYNOPSIS
36.In libdwarf.h
37.Ft int
38.Fo dwarf_get_cie_index
39.Fa "Dwarf_Cie cie"
40.Fa "Dwarf_Signed *cie_index"
41.Fa "Dwarf_Error *err"
42.Fc
43.Sh DESCRIPTION
44Function
45.Fn dwarf_get_cie_index
46retrieves the zero-based index of a given CIE descriptor in the array
47of CIE descriptors returned by the functions
48.Xr dwarf_get_fde_list 3
49and
50.Xr dwarf_get_fde_list_eh 3 .
51.Pp
52Argument
53.Ar cie
54should reference a valid DWARF CIE descriptor.
55.Pp
56Argument
57.Ar cie_index
58should point to a location that will hold the returned index.
59.Sh RETURN VALUES
60Function
61.Fn dwarf_get_cie_index
62returns
63.Dv DW_DLV_OK
64when it succeeds.
65In case of an error, it returns
66.Dv DW_DLV_ERROR
67and sets the argument
68.Ar err .
69.Sh ERRORS
70Function
71.Fn dwarf_get_cie_index
72can fail with:
73.Bl -tag -width ".Bq Er DW_DLE_ARGUMENT"
74.It Bq Er DW_DLE_ARGUMENT
75Either of arugments
76.Ar cie
77or
78.Ar cie_index
79was NULL.
80.El
81.Sh SEE ALSO
82.Xr dwarf 3 ,
83.Xr dwarf_get_cie_info 3 ,
84.Xr dwarf_get_cie_of_fde 3 ,
85.Xr dwarf_get_fde_list 3 ,
86.Xr dwarf_get_fde_list_eh 3
87