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/*-
* Copyright (c) 1998 Michael Smith <msmith@freebsd.org>
* All rights reserved.
*
* 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.
*
* $Id$
*/
/*
* module function dispatcher, support, etc.
*
* XXX need a 'searchmodule' function that takes a name and
* traverses a search path.
*/
#include <stand.h>
#include <string.h>
#include "bootstrap.h"
/* Initially determined from kernel load address */
static vm_offset_t loadaddr = 0;
struct loaded_module *loaded_modules = NULL;
COMMAND_SET(load, "load", "load a kernel or module", command_load);
static int
command_load(int argc, char *argv[])
{
return(mod_load(argv[1], argc - 2, argv + 2));
}
COMMAND_SET(lsmod, "lsmod", "list loaded modules", command_lsmod);
static int
command_lsmod(int argc, char *argv[])
{
struct loaded_module *am;
char lbuf[80];
pager_open();
for (am = loaded_modules; (am != NULL); am = am->m_next) {
sprintf(lbuf, " %p: %s (%s, 0x%x)\n",
am->m_addr, am->m_name, am->m_type, am->m_size);
pager_output(lbuf);
if (am->m_args != NULL) {
pager_output(" args: ");
pager_output(am->m_args);
pager_output("\n");
}
}
pager_close();
return(CMD_OK);
}
int
mod_load(char *name, int argc, char *argv[])
{
struct loaded_module *am, *cm;
int i, err;
for (i = 0, am = NULL; (module_formats[i] != NULL) && (am == NULL); i++) {
/* XXX call searchmodule() to search for module (name) */
if ((err = (module_formats[i]->l_load)(name, loadaddr, &am)) != 0) {
/* Unknown to this handler? */
if (err == EFTYPE)
continue;
/* Fatal error */
sprintf(command_errbuf, "can't load module '%s': %s", name, strerror(err));
return(CMD_ERROR);
}
}
if (am == NULL) {
sprintf(command_errbuf, "can't work out what to do with '%s'", name);
return(CMD_ERROR);
}
/* where can we put the next one? */
loadaddr = am->m_addr + am->m_size;
/* Load was OK, set args */
am->m_args = unargv(argc, argv);
/* Append to list of loaded modules */
am->m_next = NULL;
if (loaded_modules == NULL) {
loaded_modules = am;
} else {
for (cm = loaded_modules; cm->m_next != NULL; cm = cm->m_next)
;
cm->m_next = am;
}
return(CMD_OK);
}
struct loaded_module *
mod_findmodule(char *name, char *type)
{
struct loaded_module *mp;
for (mp = loaded_modules; mp != NULL; mp = mp->m_next) {
if (((name == NULL) || !strcmp(name, mp->m_name)) &&
((type == NULL) || !strcmp(type, mp->m_type)))
break;
}
return(mp);
}
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