xref: /onnv-gate/usr/src/cmd/sgs/libelf/common/flag.c (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*	Copyright (c) 1988 AT&T	*/
23*0Sstevel@tonic-gate /*	  All Rights Reserved  	*/
24*0Sstevel@tonic-gate 
25*0Sstevel@tonic-gate 
26*0Sstevel@tonic-gate /*
27*0Sstevel@tonic-gate  * Copyright (c) 1998 by Sun Microsystems, Inc.
28*0Sstevel@tonic-gate  * All rights reserved.
29*0Sstevel@tonic-gate  */
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI" 	/* SVr4.0 1.6	*/
32*0Sstevel@tonic-gate 
33*0Sstevel@tonic-gate #pragma weak	elf_flagdata = _elf_flagdata
34*0Sstevel@tonic-gate #pragma weak	elf_flagehdr = _elf_flagehdr
35*0Sstevel@tonic-gate #pragma weak	elf_flagelf = _elf_flagelf
36*0Sstevel@tonic-gate #pragma weak	elf_flagphdr = _elf_flagphdr
37*0Sstevel@tonic-gate #pragma weak	elf_flagscn = _elf_flagscn
38*0Sstevel@tonic-gate #pragma weak	elf_flagshdr = _elf_flagshdr
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate 
41*0Sstevel@tonic-gate #include "syn.h"
42*0Sstevel@tonic-gate #include "libelf.h"
43*0Sstevel@tonic-gate #include "decl.h"
44*0Sstevel@tonic-gate #include "msg.h"
45*0Sstevel@tonic-gate 
46*0Sstevel@tonic-gate 
47*0Sstevel@tonic-gate unsigned
48*0Sstevel@tonic-gate elf_flagdata(Elf_Data * data, Elf_Cmd cmd, unsigned flags)
49*0Sstevel@tonic-gate {
50*0Sstevel@tonic-gate 	unsigned	rc = 0;
51*0Sstevel@tonic-gate 	Elf *		elf;
52*0Sstevel@tonic-gate 	Elf_Scn *	scn;
53*0Sstevel@tonic-gate 	Dnode *		d;
54*0Sstevel@tonic-gate 
55*0Sstevel@tonic-gate 	if (data == 0)
56*0Sstevel@tonic-gate 		return (0);
57*0Sstevel@tonic-gate 	d = (Dnode *) data;
58*0Sstevel@tonic-gate 	scn = d->db_scn;
59*0Sstevel@tonic-gate 	elf = scn->s_elf;
60*0Sstevel@tonic-gate 
61*0Sstevel@tonic-gate 	READLOCKS(elf, scn)
62*0Sstevel@tonic-gate 
63*0Sstevel@tonic-gate 	if (cmd == ELF_C_SET) {
64*0Sstevel@tonic-gate 		rc = d->db_uflags |= flags;
65*0Sstevel@tonic-gate 	} else if (cmd == ELF_C_CLR) {
66*0Sstevel@tonic-gate 		rc = d->db_uflags &= ~flags;
67*0Sstevel@tonic-gate 	} else
68*0Sstevel@tonic-gate 		_elf_seterr(EREQ_FLAG, 0);
69*0Sstevel@tonic-gate 	READUNLOCKS(elf, scn)
70*0Sstevel@tonic-gate 	return (rc);
71*0Sstevel@tonic-gate }
72*0Sstevel@tonic-gate 
73*0Sstevel@tonic-gate 
74*0Sstevel@tonic-gate unsigned int
75*0Sstevel@tonic-gate elf_flagehdr(Elf * elf, Elf_Cmd cmd, unsigned flags)
76*0Sstevel@tonic-gate {
77*0Sstevel@tonic-gate 	int	rc;
78*0Sstevel@tonic-gate 	if (elf == 0)
79*0Sstevel@tonic-gate 		return (0);
80*0Sstevel@tonic-gate 	if (cmd == ELF_C_SET) {
81*0Sstevel@tonic-gate 		ELFWLOCK(elf)
82*0Sstevel@tonic-gate 		rc = elf->ed_ehflags |= flags;
83*0Sstevel@tonic-gate 		ELFUNLOCK(elf)
84*0Sstevel@tonic-gate 		return (rc);
85*0Sstevel@tonic-gate 	}
86*0Sstevel@tonic-gate 	if (cmd == ELF_C_CLR) {
87*0Sstevel@tonic-gate 		ELFWLOCK(elf)
88*0Sstevel@tonic-gate 		rc = elf->ed_ehflags &= ~flags;
89*0Sstevel@tonic-gate 		ELFUNLOCK(elf)
90*0Sstevel@tonic-gate 		return (rc);
91*0Sstevel@tonic-gate 	}
92*0Sstevel@tonic-gate 	_elf_seterr(EREQ_FLAG, 0);
93*0Sstevel@tonic-gate 	return (0);
94*0Sstevel@tonic-gate }
95*0Sstevel@tonic-gate 
96*0Sstevel@tonic-gate 
97*0Sstevel@tonic-gate unsigned
98*0Sstevel@tonic-gate elf_flagelf(Elf * elf, Elf_Cmd cmd, unsigned flags)
99*0Sstevel@tonic-gate {
100*0Sstevel@tonic-gate 	int	rc;
101*0Sstevel@tonic-gate 	if (elf == 0)
102*0Sstevel@tonic-gate 		return (0);
103*0Sstevel@tonic-gate 	if (cmd == ELF_C_SET) {
104*0Sstevel@tonic-gate 		ELFWLOCK(elf)
105*0Sstevel@tonic-gate 		rc = elf->ed_uflags |= flags;
106*0Sstevel@tonic-gate 		ELFUNLOCK(elf)
107*0Sstevel@tonic-gate 		return (rc);
108*0Sstevel@tonic-gate 	}
109*0Sstevel@tonic-gate 	if (cmd == ELF_C_CLR) {
110*0Sstevel@tonic-gate 		ELFWLOCK(elf)
111*0Sstevel@tonic-gate 		rc = elf->ed_uflags &= ~flags;
112*0Sstevel@tonic-gate 		ELFUNLOCK(elf)
113*0Sstevel@tonic-gate 		return (rc);
114*0Sstevel@tonic-gate 	}
115*0Sstevel@tonic-gate 	_elf_seterr(EREQ_FLAG, 0);
116*0Sstevel@tonic-gate 	return (0);
117*0Sstevel@tonic-gate }
118*0Sstevel@tonic-gate 
119*0Sstevel@tonic-gate 
120*0Sstevel@tonic-gate unsigned
121*0Sstevel@tonic-gate elf_flagphdr(Elf * elf, Elf_Cmd cmd, unsigned flags)
122*0Sstevel@tonic-gate {
123*0Sstevel@tonic-gate 	int	rc;
124*0Sstevel@tonic-gate 	if (elf == 0)
125*0Sstevel@tonic-gate 		return (0);
126*0Sstevel@tonic-gate 	if (cmd == ELF_C_SET) {
127*0Sstevel@tonic-gate 		ELFWLOCK(elf);
128*0Sstevel@tonic-gate 		rc = elf->ed_phflags |= flags;
129*0Sstevel@tonic-gate 		ELFUNLOCK(elf);
130*0Sstevel@tonic-gate 		return (rc);
131*0Sstevel@tonic-gate 	}
132*0Sstevel@tonic-gate 	if (cmd == ELF_C_CLR) {
133*0Sstevel@tonic-gate 		ELFWLOCK(elf);
134*0Sstevel@tonic-gate 		rc = elf->ed_phflags &= ~flags;
135*0Sstevel@tonic-gate 		ELFUNLOCK(elf);
136*0Sstevel@tonic-gate 		return (rc);
137*0Sstevel@tonic-gate 	}
138*0Sstevel@tonic-gate 	_elf_seterr(EREQ_FLAG, 0);
139*0Sstevel@tonic-gate 	return (0);
140*0Sstevel@tonic-gate }
141*0Sstevel@tonic-gate 
142*0Sstevel@tonic-gate 
143*0Sstevel@tonic-gate unsigned
144*0Sstevel@tonic-gate elf_flagscn(Elf_Scn * scn, Elf_Cmd cmd, unsigned flags)
145*0Sstevel@tonic-gate {
146*0Sstevel@tonic-gate 	unsigned	rc;
147*0Sstevel@tonic-gate 	Elf *		elf;
148*0Sstevel@tonic-gate 
149*0Sstevel@tonic-gate 	if (scn == 0)
150*0Sstevel@tonic-gate 		return (0);
151*0Sstevel@tonic-gate 
152*0Sstevel@tonic-gate 	elf = scn->s_elf;
153*0Sstevel@tonic-gate 	if (cmd == ELF_C_SET) {
154*0Sstevel@tonic-gate 		READLOCKS(elf, scn)
155*0Sstevel@tonic-gate 		rc = scn->s_uflags |= flags;
156*0Sstevel@tonic-gate 		READUNLOCKS(elf, scn)
157*0Sstevel@tonic-gate 		return (rc);
158*0Sstevel@tonic-gate 	}
159*0Sstevel@tonic-gate 	if (cmd == ELF_C_CLR) {
160*0Sstevel@tonic-gate 		READLOCKS(elf, scn)
161*0Sstevel@tonic-gate 		rc = scn->s_uflags &= ~flags;
162*0Sstevel@tonic-gate 		READUNLOCKS(elf, scn)
163*0Sstevel@tonic-gate 		return (rc);
164*0Sstevel@tonic-gate 	}
165*0Sstevel@tonic-gate 	_elf_seterr(EREQ_FLAG, 0);
166*0Sstevel@tonic-gate 	return (0);
167*0Sstevel@tonic-gate }
168*0Sstevel@tonic-gate 
169*0Sstevel@tonic-gate 
170*0Sstevel@tonic-gate unsigned
171*0Sstevel@tonic-gate elf_flagshdr(Elf_Scn * scn, Elf_Cmd cmd, unsigned flags)
172*0Sstevel@tonic-gate {
173*0Sstevel@tonic-gate 	unsigned	rc;
174*0Sstevel@tonic-gate 	Elf *		elf;
175*0Sstevel@tonic-gate 	if (scn == 0)
176*0Sstevel@tonic-gate 		return (0);
177*0Sstevel@tonic-gate 
178*0Sstevel@tonic-gate 	elf = scn->s_elf;
179*0Sstevel@tonic-gate 	if (cmd == ELF_C_SET) {
180*0Sstevel@tonic-gate 		READLOCKS(elf, scn)
181*0Sstevel@tonic-gate 		rc = scn->s_shflags |= flags;
182*0Sstevel@tonic-gate 		READUNLOCKS(elf, scn)
183*0Sstevel@tonic-gate 		return (rc);
184*0Sstevel@tonic-gate 	}
185*0Sstevel@tonic-gate 	if (cmd == ELF_C_CLR) {
186*0Sstevel@tonic-gate 		READLOCKS(elf, scn)
187*0Sstevel@tonic-gate 		rc = scn->s_shflags &= ~flags;
188*0Sstevel@tonic-gate 		READUNLOCKS(elf, scn)
189*0Sstevel@tonic-gate 		return (rc);
190*0Sstevel@tonic-gate 	}
191*0Sstevel@tonic-gate 	_elf_seterr(EREQ_FLAG, 0);
192*0Sstevel@tonic-gate 	return (0);
193*0Sstevel@tonic-gate }
194