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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) 1994-1995, by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/param.h>
#include <sys/modctl.h>
#include <sys/salib.h>
#include <sys/platnames.h>
/*
* Supplied by modpath.c
*
* Making these externs here allows all sparc machines to share
* mod_path_uname_m().
*/
extern char *default_name;
extern char *default_path;
/*
* Is path "/platform/"dir"/" ?
*/
static int
platcmp(char *path, char *dir)
{
static char prefix[] = "/platform/";
static char suffix[] = "/kernel";
int len;
if (strncmp(path, prefix, sizeof (prefix) - 1) != 0)
return (0);
len = strlen(dir);
path += sizeof (prefix) - 1;
if (strncmp(path, dir, len) != 0)
return (0);
path += len;
if (strcmp(path, suffix) != 0)
return (0);
return (1);
}
/*
* This function provides a hook for enhancing the module_path.
*/
/*ARGSUSED*/
void
mod_path_uname_m(char *mod_path, char *ia_name)
{
if (ia_name == NULL)
return;
/*
* If we found the kernel in the default dir, prepend the ia_name
* directory (e.g. /platform/SUNW,foo/kernel) to the mod_path unless
* ia_name is the same as the default dir. This can happen if we
* found the kernel via the "compatible" property.
*
* If we found the kernel in the ia_name dir, append the default
* directory to the modpath.
*
* If neither of the above are true, we were given a specific kernel
* to boot, so we leave things well enough alone.
*/
if (platcmp(mod_path, default_name)) {
if (strcmp(ia_name, default_name) != 0) {
char tmp[MOD_MAXPATH];
(void) strcpy(tmp, mod_path);
(void) strcpy(mod_path, "/platform/");
(void) strcat(mod_path, ia_name);
(void) strcat(mod_path, "/kernel ");
(void) strcat(mod_path, tmp);
}
} else if (platcmp(mod_path, ia_name))
(void) strcat(mod_path, default_path);
}
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