/*
* 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
* 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
*/
/*
*/
/*
* Object file dependent support for ELF objects.
*/
#include <stdio.h>
#include <dlfcn.h>
#include <debug.h>
#include <conv.h>
#include "_rtld.h"
#include "_audit.h"
#include "_elf.h"
#include "_inline_gen.h"
#include "msg.h"
/*
* For backward compatibility copy relocation processing, it can be necessary to
* determine if a copy destination is also the recipient of a move record. For
* these instances, the move record addresses are retained for is_move_data().
*/
/*
* Warning message for bad move target.
*/
void
{
const char *name;
int trace;
(((rtld_flags & RT_FL_SILENCERR) == 0) ||
if ((trace == 0) && (DBG_ENABLED == 0))
return;
else
if (trace)
else
}
/*
* Move data. Apply sparse initialization to data in zeroed bss.
*/
int
{
int moves;
/*
* If these records are against the executable, and the executable was
* built prior to Solaris 8, keep track of the move record symbol. See
* comment in analyze.c:lookup_sym_interpose() in regards Solaris 8
* objects and DT_FLAGS.
*/
continue;
/*
* Determine the move data target, and verify the address is
* writable.
*/
continue;
}
return (0);
case 1:
repno++;
break;
case 2:
/* LINTED */
repno++;
break;
case 4:
/* LINTED */
repno++;
break;
case 8:
/* LINTED */
repno++;
break;
default:
break;
}
}
/*
* If any move records have been applied to this symbol, retain
* the symbol address if required for backward compatibility
* copy relocation processing.
*/
return (0);
}
/*
* Binaries built in the early 1990's prior to Solaris 8, using the ild
* incremental linker are known to have zero filled move sections
* (presumably place holders for new, incoming move sections). If no
* move records have been processed, remove the move identifier to
* optimize the amount of backward compatibility copy relocation
* processing that is needed.
*/
return (1);
}
/*
* Determine whether an address is the recipient of a move record.
* Returns 1 if the address matches a move symbol, 0 otherwise.
*/
int
{
return (1);
}
return (0);
}