xref: /illumos-gate/usr/src/cmd/sgs/libelf/common/flag.c (revision 20a7641f9918de8574b8b3b47dbe35c4bfc78df1)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1988 AT&T	*/
28 /*	  All Rights Reserved  	*/
29 
30 #include "libelf.h"
31 #include "decl.h"
32 #include "msg.h"
33 
34 
35 unsigned
36 elf_flagdata(Elf_Data * data, Elf_Cmd cmd, unsigned flags)
37 {
38 	unsigned	rc = 0;
39 	Elf *		elf;
40 	Elf_Scn *	scn;
41 	Dnode *		d;
42 
43 	if (data == 0)
44 		return (0);
45 	d = (Dnode *) data;
46 	scn = d->db_scn;
47 	elf = scn->s_elf;
48 
49 	READLOCKS(elf, scn)
50 
51 	if (cmd == ELF_C_SET) {
52 		rc = d->db_uflags |= flags;
53 	} else if (cmd == ELF_C_CLR) {
54 		rc = d->db_uflags &= ~flags;
55 	} else
56 		_elf_seterr(EREQ_FLAG, 0);
57 	READUNLOCKS(elf, scn)
58 	return (rc);
59 }
60 
61 
62 unsigned int
63 elf_flagehdr(Elf * elf, Elf_Cmd cmd, unsigned flags)
64 {
65 	int	rc;
66 	if (elf == 0)
67 		return (0);
68 	if (cmd == ELF_C_SET) {
69 		ELFWLOCK(elf)
70 		rc = elf->ed_ehflags |= flags;
71 		ELFUNLOCK(elf)
72 		return (rc);
73 	}
74 	if (cmd == ELF_C_CLR) {
75 		ELFWLOCK(elf)
76 		rc = elf->ed_ehflags &= ~flags;
77 		ELFUNLOCK(elf)
78 		return (rc);
79 	}
80 	_elf_seterr(EREQ_FLAG, 0);
81 	return (0);
82 }
83 
84 
85 unsigned
86 elf_flagelf(Elf * elf, Elf_Cmd cmd, unsigned flags)
87 {
88 	int	rc;
89 	if (elf == 0)
90 		return (0);
91 	if (cmd == ELF_C_SET) {
92 		ELFWLOCK(elf)
93 		rc = elf->ed_uflags |= flags;
94 		ELFUNLOCK(elf)
95 		return (rc);
96 	}
97 	if (cmd == ELF_C_CLR) {
98 		ELFWLOCK(elf)
99 		rc = elf->ed_uflags &= ~flags;
100 		ELFUNLOCK(elf)
101 		return (rc);
102 	}
103 	_elf_seterr(EREQ_FLAG, 0);
104 	return (0);
105 }
106 
107 
108 unsigned
109 elf_flagphdr(Elf * elf, Elf_Cmd cmd, unsigned flags)
110 {
111 	int	rc;
112 	if (elf == 0)
113 		return (0);
114 	if (cmd == ELF_C_SET) {
115 		ELFWLOCK(elf);
116 		rc = elf->ed_phflags |= flags;
117 		ELFUNLOCK(elf);
118 		return (rc);
119 	}
120 	if (cmd == ELF_C_CLR) {
121 		ELFWLOCK(elf);
122 		rc = elf->ed_phflags &= ~flags;
123 		ELFUNLOCK(elf);
124 		return (rc);
125 	}
126 	_elf_seterr(EREQ_FLAG, 0);
127 	return (0);
128 }
129 
130 
131 unsigned
132 elf_flagscn(Elf_Scn * scn, Elf_Cmd cmd, unsigned flags)
133 {
134 	unsigned	rc;
135 	Elf *		elf;
136 
137 	if (scn == 0)
138 		return (0);
139 
140 	elf = scn->s_elf;
141 	if (cmd == ELF_C_SET) {
142 		READLOCKS(elf, scn)
143 		rc = scn->s_uflags |= flags;
144 		READUNLOCKS(elf, scn)
145 		return (rc);
146 	}
147 	if (cmd == ELF_C_CLR) {
148 		READLOCKS(elf, scn)
149 		rc = scn->s_uflags &= ~flags;
150 		READUNLOCKS(elf, scn)
151 		return (rc);
152 	}
153 	_elf_seterr(EREQ_FLAG, 0);
154 	return (0);
155 }
156 
157 
158 unsigned
159 elf_flagshdr(Elf_Scn * scn, Elf_Cmd cmd, unsigned flags)
160 {
161 	unsigned	rc;
162 	Elf *		elf;
163 	if (scn == 0)
164 		return (0);
165 
166 	elf = scn->s_elf;
167 	if (cmd == ELF_C_SET) {
168 		READLOCKS(elf, scn)
169 		rc = scn->s_shflags |= flags;
170 		READUNLOCKS(elf, scn)
171 		return (rc);
172 	}
173 	if (cmd == ELF_C_CLR) {
174 		READLOCKS(elf, scn)
175 		rc = scn->s_shflags &= ~flags;
176 		READUNLOCKS(elf, scn)
177 		return (rc);
178 	}
179 	_elf_seterr(EREQ_FLAG, 0);
180 	return (0);
181 }
182