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/*
* Copyright (c) 2010 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Rui Paulo under sponsorship from the
* FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <rtld_db.h>
#include "libproc.h"
#include "_libproc.h"
static int
map_iter(const rd_loadobj_t *lop, void *arg)
{
struct proc_handle *phdl = arg;
if (phdl->nobjs >= phdl->rdobjsz) {
phdl->rdobjsz *= 2;
phdl->rdobjs = reallocf(phdl->rdobjs, sizeof(*phdl->rdobjs) *
phdl->rdobjsz);
if (phdl->rdobjs == NULL)
return (-1);
}
if (strcmp(lop->rdl_path, phdl->execname) == 0 &&
(lop->rdl_prot & RD_RDL_X) != 0)
phdl->rdexec = &phdl->rdobjs[phdl->nobjs];
memcpy(&phdl->rdobjs[phdl->nobjs++], lop, sizeof(*lop));
return (0);
}
rd_agent_t *
proc_rdagent(struct proc_handle *phdl)
{
if (phdl->rdap == NULL && phdl->status != PS_UNDEAD &&
phdl->status != PS_IDLE) {
if ((phdl->rdap = rd_new(phdl)) != NULL) {
phdl->rdobjs = malloc(sizeof(*phdl->rdobjs) * 64);
phdl->rdobjsz = 64;
if (phdl->rdobjs == NULL)
return (phdl->rdap);
rd_loadobj_iter(phdl->rdap, map_iter, phdl);
}
}
return (phdl->rdap);
}
void
proc_updatesyms(struct proc_handle *phdl)
{
memset(phdl->rdobjs, 0, sizeof(*phdl->rdobjs) * phdl->rdobjsz);
phdl->nobjs = 0;
rd_loadobj_iter(phdl->rdap, map_iter, phdl);
}
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