usr/src/cmd/sgs/libelf/common/flag.c

   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 #pragma ident   "%Z%%M% %I%     %E% SMI"
  31
  32 #include "libelf.h"
  33 #include "decl.h"
  34 #include "msg.h"
  35
  36
  37 unsigned
  38 elf_flagdata(Elf_Data * data, Elf_Cmd cmd, unsigned flags)
  39 {
  40         unsigned        rc = 0;
  41         Elf *           elf;
  42         Elf_Scn *       scn;
  43         Dnode *         d;
  44
  45         if (data == 0)
  46                 return (0);
  47         d = (Dnode *) data;
  48         scn = d->db_scn;
  49         elf = scn->s_elf;
  50
  51         READLOCKS(elf, scn)
  52
  53         if (cmd == ELF_C_SET) {
  54                 rc = d->db_uflags |= flags;
  55         } else if (cmd == ELF_C_CLR) {
  56                 rc = d->db_uflags &= ~flags;
  57         } else
  58                 _elf_seterr(EREQ_FLAG, 0);
  59         READUNLOCKS(elf, scn)
  60         return (rc);
  61 }
  62
  63
  64 unsigned int
  65 elf_flagehdr(Elf * elf, Elf_Cmd cmd, unsigned flags)
  66 {
  67         int     rc;
  68         if (elf == 0)
  69                 return (0);
  70         if (cmd == ELF_C_SET) {
  71                 ELFWLOCK(elf)
  72                 rc = elf->ed_ehflags |= flags;
  73                 ELFUNLOCK(elf)
  74                 return (rc);
  75         }
  76         if (cmd == ELF_C_CLR) {
  77                 ELFWLOCK(elf)
  78                 rc = elf->ed_ehflags &= ~flags;
  79                 ELFUNLOCK(elf)
  80                 return (rc);
  81         }
  82         _elf_seterr(EREQ_FLAG, 0);
  83         return (0);
  84 }
  85
  86
  87 unsigned
  88 elf_flagelf(Elf * elf, Elf_Cmd cmd, unsigned flags)
  89 {
  90         int     rc;
  91         if (elf == 0)
  92                 return (0);
  93         if (cmd == ELF_C_SET) {
  94                 ELFWLOCK(elf)
  95                 rc = elf->ed_uflags |= flags;
  96                 ELFUNLOCK(elf)
  97                 return (rc);
  98         }
  99         if (cmd == ELF_C_CLR) {
 100                 ELFWLOCK(elf)
 101                 rc = elf->ed_uflags &= ~flags;
 102                 ELFUNLOCK(elf)
 103                 return (rc);
 104         }
 105         _elf_seterr(EREQ_FLAG, 0);
 106         return (0);
 107 }
 108
 109
 110 unsigned
 111 elf_flagphdr(Elf * elf, Elf_Cmd cmd, unsigned flags)
 112 {
 113         int     rc;
 114         if (elf == 0)
 115                 return (0);
 116         if (cmd == ELF_C_SET) {
 117                 ELFWLOCK(elf);
 118                 rc = elf->ed_phflags |= flags;
 119                 ELFUNLOCK(elf);
 120                 return (rc);
 121         }
 122         if (cmd == ELF_C_CLR) {
 123                 ELFWLOCK(elf);
 124                 rc = elf->ed_phflags &= ~flags;
 125                 ELFUNLOCK(elf);
 126                 return (rc);
 127         }
 128         _elf_seterr(EREQ_FLAG, 0);
 129         return (0);
 130 }
 131
 132
 133 unsigned
 134 elf_flagscn(Elf_Scn * scn, Elf_Cmd cmd, unsigned flags)
 135 {
 136         unsigned        rc;
 137         Elf *           elf;
 138
 139         if (scn == 0)
 140                 return (0);
 141
 142         elf = scn->s_elf;
 143         if (cmd == ELF_C_SET) {
 144                 READLOCKS(elf, scn)
 145                 rc = scn->s_uflags |= flags;
 146                 READUNLOCKS(elf, scn)
 147                 return (rc);
 148         }
 149         if (cmd == ELF_C_CLR) {
 150                 READLOCKS(elf, scn)
 151                 rc = scn->s_uflags &= ~flags;
 152                 READUNLOCKS(elf, scn)
 153                 return (rc);
 154         }
 155         _elf_seterr(EREQ_FLAG, 0);
 156         return (0);
 157 }
 158
 159
 160 unsigned
 161 elf_flagshdr(Elf_Scn * scn, Elf_Cmd cmd, unsigned flags)
 162 {
 163         unsigned        rc;
 164         Elf *           elf;
 165         if (scn == 0)
 166                 return (0);
 167
 168         elf = scn->s_elf;
 169         if (cmd == ELF_C_SET) {
 170                 READLOCKS(elf, scn)
 171                 rc = scn->s_shflags |= flags;
 172                 READUNLOCKS(elf, scn)
 173                 return (rc);
 174         }
 175         if (cmd == ELF_C_CLR) {
 176                 READLOCKS(elf, scn)
 177                 rc = scn->s_shflags &= ~flags;
 178                 READUNLOCKS(elf, scn)
 179                 return (rc);
 180         }
 181         _elf_seterr(EREQ_FLAG, 0);
 182         return (0);
 183 }