blob: 29796acb2c61e58a0b0743b029ce4b72f5c0ae79 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <string.h>
#include "symbol.h"
int
ignore_symbol(GElf_Sym *sym, const char *name)
{
uchar_t type = GELF_ST_TYPE(sym->st_info);
/*
* As an optimization, we do not output function or data object
* records for undefined or anonymous symbols.
*/
if (sym->st_shndx == SHN_UNDEF || sym->st_name == 0)
return (1);
/*
* _START_ and _END_ are added to the symbol table by the
* linker, and will never have associated type information.
*/
if (strcmp(name, "_START_") == 0 || strcmp(name, "_END_") == 0)
return (1);
/*
* Do not output records for absolute-valued object symbols
* that have value zero. The compiler insists on generating
* things like this for __fsr_init_value settings, etc.
*/
if (type == STT_OBJECT && sym->st_shndx == SHN_ABS &&
sym->st_value == 0)
return (1);
return (0);
}
|
