xref: /freebsd/contrib/elftoolchain/libelf/elf_end.3 (revision 8e93258f2686c76b4e3b384a904d8b4413976229)
1.\" Copyright (c) 2006,2008 Joseph Koshy.  All rights reserved.
2.\"
3.\" Redistribution and use in source and binary forms, with or without
4.\" modification, are permitted provided that the following conditions
5.\" are met:
6.\" 1. Redistributions of source code must retain the above copyright
7.\"    notice, this list of conditions and the following disclaimer.
8.\" 2. Redistributions in binary form must reproduce the above copyright
9.\"    notice, this list of conditions and the following disclaimer in the
10.\"    documentation and/or other materials provided with the distribution.
11.\"
12.\" This software is provided by Joseph Koshy ``as is'' and
13.\" any express or implied warranties, including, but not limited to, the
14.\" implied warranties of merchantability and fitness for a particular purpose
15.\" are disclaimed.  in no event shall Joseph Koshy be liable
16.\" for any direct, indirect, incidental, special, exemplary, or consequential
17.\" damages (including, but not limited to, procurement of substitute goods
18.\" or services; loss of use, data, or profits; or business interruption)
19.\" however caused and on any theory of liability, whether in contract, strict
20.\" liability, or tort (including negligence or otherwise) arising in any way
21.\" out of the use of this software, even if advised of the possibility of
22.\" such damage.
23.\"
24.\" $Id: elf_end.3 3639 2018-10-14 14:07:02Z jkoshy $
25.\"
26.Dd June 29, 2006
27.Dt ELF_END 3
28.Os
29.Sh NAME
30.Nm elf_end
31.Nd release an ELF descriptor
32.Sh LIBRARY
33.Lb libelf
34.Sh SYNOPSIS
35.In libelf.h
36.Ft int
37.Fn elf_end "Elf *elf"
38.Sh DESCRIPTION
39Function
40.Fn elf_end
41is used to release the resources associated with an ELF descriptor
42pointed to by argument
43.Ar elf .
44This descriptor must have been allocated by a previous call to
45.Xr elf_begin 3
46or
47.Xr elf_memory 3 .
48For programming convenience, a NULL value is permitted for argument
49.Ar elf .
50.Pp
51A call to
52.Fn elf_end
53decrements the activation count for descriptor
54.Ar elf
55by one.
56The resources associated with the descriptor are only released
57with its activation count goes to zero.
58.Pp
59Once function
60.Fn elf_end
61returns zero, the ELF descriptor
62.Ar elf
63will no longer be valid and should not be used further.
64.Sh RETURN VALUES
65Function
66.Fn elf_end
67returns the current value of the ELF descriptor
68.Ar elf Ap s
69activation count, or zero if argument
70.Ar elf
71was NULL.
72.Sh SEE ALSO
73.Xr elf 3 ,
74.Xr elf_begin 3 ,
75.Xr elf_memory 3 ,
76.Xr gelf 3
77