File: | src/lib/libelf/elf_hash.c |
Warning: | line 44, column 6 Although the value stored to 't' is used in the enclosing expression, the value is never actually read from 't' |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
1 | /*- |
2 | * Copyright (c) 2006,2008 Joseph Koshy |
3 | * All rights reserved. |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
8 | * 1. Redistributions of source code must retain the above copyright |
9 | * notice, this list of conditions and the following disclaimer. |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
11 | * notice, this list of conditions and the following disclaimer in the |
12 | * documentation and/or other materials provided with the distribution. |
13 | * |
14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
15 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
16 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
17 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
18 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
19 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
20 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
21 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
22 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
23 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
24 | * SUCH DAMAGE. |
25 | */ |
26 | |
27 | #include <libelf.h> |
28 | |
29 | #include "_libelf.h" |
30 | |
31 | ELFTC_VCSID("$Id: elf_hash.c,v 1.1 2019/02/01 05:27:37 jsg Exp $"); |
32 | |
33 | /* |
34 | * This elf_hash function is defined by the System V ABI. |
35 | */ |
36 | |
37 | unsigned long |
38 | elf_hash(const char *name) |
39 | { |
40 | unsigned long h, t; |
41 | const unsigned char *s; |
42 | |
43 | s = (const unsigned char *) name; |
44 | h = t = 0; |
Although the value stored to 't' is used in the enclosing expression, the value is never actually read from 't' | |
45 | |
46 | for (; *s != '\0'; h = h & ~t) { |
47 | h = (h << 4) + *s++; |
48 | t = h & 0xF0000000UL; |
49 | if (t) |
50 | h ^= t >> 24; |
51 | } |
52 | |
53 | return (h); |
54 | } |