libelf/common/flag.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (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 2008 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*  Copyright (c) 1988 AT&T */
/*    All Rights Reserved   */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include "libelf.h"
#include "decl.h"
#include "msg.h"


unsigned
elf_flagdata(Elf_Data * data, Elf_Cmd cmd, unsigned flags)
{
    unsigned    rc = 0;
    Elf *       elf;
    Elf_Scn *   scn;
    Dnode *     d;

    if (data == 0)
        return (0);
    d = (Dnode *) data;
    scn = d->db_scn;
    elf = scn->s_elf;

    READLOCKS(elf, scn)

    if (cmd == ELF_C_SET) {
        rc = d->db_uflags |= flags;
    } else if (cmd == ELF_C_CLR) {
        rc = d->db_uflags &= ~flags;
    } else
        _elf_seterr(EREQ_FLAG, 0);
    READUNLOCKS(elf, scn)
    return (rc);
}


unsigned int
elf_flagehdr(Elf * elf, Elf_Cmd cmd, unsigned flags)
{
    int rc;
    if (elf == 0)
        return (0);
    if (cmd == ELF_C_SET) {
        ELFWLOCK(elf)
        rc = elf->ed_ehflags |= flags;
        ELFUNLOCK(elf)
        return (rc);
    }
    if (cmd == ELF_C_CLR) {
        ELFWLOCK(elf)
        rc = elf->ed_ehflags &= ~flags;
        ELFUNLOCK(elf)
        return (rc);
    }
    _elf_seterr(EREQ_FLAG, 0);
    return (0);
}


unsigned
elf_flagelf(Elf * elf, Elf_Cmd cmd, unsigned flags)
{
    int rc;
    if (elf == 0)
        return (0);
    if (cmd == ELF_C_SET) {
        ELFWLOCK(elf)
        rc = elf->ed_uflags |= flags;
        ELFUNLOCK(elf)
        return (rc);
    }
    if (cmd == ELF_C_CLR) {
        ELFWLOCK(elf)
        rc = elf->ed_uflags &= ~flags;
        ELFUNLOCK(elf)
        return (rc);
    }
    _elf_seterr(EREQ_FLAG, 0);
    return (0);
}


unsigned
elf_flagphdr(Elf * elf, Elf_Cmd cmd, unsigned flags)
{
    int rc;
    if (elf == 0)
        return (0);
    if (cmd == ELF_C_SET) {
        ELFWLOCK(elf);
        rc = elf->ed_phflags |= flags;
        ELFUNLOCK(elf);
        return (rc);
    }
    if (cmd == ELF_C_CLR) {
        ELFWLOCK(elf);
        rc = elf->ed_phflags &= ~flags;
        ELFUNLOCK(elf);
        return (rc);
    }
    _elf_seterr(EREQ_FLAG, 0);
    return (0);
}


unsigned
elf_flagscn(Elf_Scn * scn, Elf_Cmd cmd, unsigned flags)
{
    unsigned    rc;
    Elf *       elf;

    if (scn == 0)
        return (0);

    elf = scn->s_elf;
    if (cmd == ELF_C_SET) {
        READLOCKS(elf, scn)
        rc = scn->s_uflags |= flags;
        READUNLOCKS(elf, scn)
        return (rc);
    }
    if (cmd == ELF_C_CLR) {
        READLOCKS(elf, scn)
        rc = scn->s_uflags &= ~flags;
        READUNLOCKS(elf, scn)
        return (rc);
    }
    _elf_seterr(EREQ_FLAG, 0);
    return (0);
}


unsigned
elf_flagshdr(Elf_Scn * scn, Elf_Cmd cmd, unsigned flags)
{
    unsigned    rc;
    Elf *       elf;
    if (scn == 0)
        return (0);

    elf = scn->s_elf;
    if (cmd == ELF_C_SET) {
        READLOCKS(elf, scn)
        rc = scn->s_shflags |= flags;
        READUNLOCKS(elf, scn)
        return (rc);
    }
    if (cmd == ELF_C_CLR) {
        READLOCKS(elf, scn)
        rc = scn->s_shflags &= ~flags;
        READUNLOCKS(elf, scn)
        return (rc);
    }
    _elf_seterr(EREQ_FLAG, 0);
    return (0);
}