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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 (c) 1994, by Sun Microsytems, Inc.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Interfaces that deal with loadobjects (shared objects) in target
*/
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include <link.h>
#include <unistd.h>
#include <sys/procfs.h>
#include "tnfctl.h"
#include "prb_proc_int.h"
#include "dbg.h"
/*
* iterate over all loadobjects calling the callback function "obj_func"
* for every loadobject with information about the loadobject.
*/
prb_status_t
prb_loadobj_iter(prb_proc_ctl_t *proc_p, prb_loadobj_f *obj_func, void *cd)
{
prb_status_t prbstat;
Elf3264_Dyn dentry;
struct r_debug r_dbg;
uintptr_t lmapaddr;
struct link_map lmap;
prb_loadobj_t loadobj;
int retval = 0;
DBG_TNF_PROBE_0(prb_loadobj_iter_start, "libtnfctl",
"start prb_loadobj_iter; sunw%verbosity 1");
if (proc_p->dbgaddr == 0) {
DBG((void) fprintf(stderr,
"prb_loadobj_iter: dbgaddr not set\n"));
return (PRB_STATUS_BADARG);
}
prbstat = prb_proc_read(proc_p, proc_p->dbgaddr, &dentry,
sizeof (dentry));
if (prbstat || !dentry.d_un.d_ptr) {
DBG((void) fprintf(stderr,
"prb_lmap_update: error in d_un.d_ptr\n"));
return (prbstat);
}
/* read in the debug struct that it points to */
prbstat = prb_proc_read(proc_p, dentry.d_un.d_ptr,
&r_dbg, sizeof (r_dbg));
if (prbstat)
return (prbstat);
DBG_TNF_PROBE_1(prb_loadobj_iter_1, "libtnfctl", "sunw%verbosity 1",
tnf_string, link_map_state,
(r_dbg.r_state == RT_CONSISTENT) ? "RT_CONSISTENT" :
(r_dbg.r_state == RT_ADD) ? "RT_ADD" : "RT_DELETE");
/* if the link map is not consistent, bail now */
if (r_dbg.r_state != RT_CONSISTENT)
return (PRB_STATUS_BADLMAPSTATE);
lmap.l_next = NULL; /* makes lint happy */
for (lmapaddr = (uintptr_t) r_dbg.r_map; lmapaddr;
lmapaddr = (uintptr_t) lmap.l_next) {
prbstat = prb_proc_read(proc_p, lmapaddr, &lmap, sizeof (lmap));
if (prbstat)
return (prbstat);
loadobj.text_base = lmap.l_addr;
loadobj.data_base = lmap.l_addr;
loadobj.objname = NULL;
/*
* client of this interface should deal with -1 for objfd,
* so no error checking is needed on this ioctl
*/
loadobj.objfd = ioctl(proc_p->procfd, PIOCOPENM, &lmap.l_addr);
(void) prb_proc_readstr(proc_p, (uintptr_t) lmap.l_name,
&loadobj.objname);
retval = obj_func(proc_p, &loadobj, cd);
if (loadobj.objname)
free((char *)loadobj.objname);
if (loadobj.objfd != -1)
close(loadobj.objfd);
/* check for error */
if (retval == 1)
return (PRB_STATUS_BADARG);
}
DBG_TNF_PROBE_0(prb_loadobj_iter_end, "libtnfctl",
"end prb_loadobj_iter; sunw%verbosity 1");
return (PRB_STATUS_OK);
}
/*
* Return a fd for the main executable and also the address of where
* it was mapped.
*/
prb_status_t
prb_mainobj_get(prb_proc_ctl_t *proc_p, int *objfd, uintptr_t *baseaddr)
{
int procfd;
int retfd;
procfd = proc_p->procfd;
again:
retfd = ioctl(procfd, PIOCOPENM, 0);
if (retfd < 0) {
if (errno == EINTR)
goto again;
DBG((void) fprintf(stderr,
"prb_mainobj_get: PIOCOPENM failed: %s\n",
strerror(errno)));
return (prb_status_map(errno));
}
*objfd = retfd;
*baseaddr = 0;
return (PRB_STATUS_OK);
}
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