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Merge from projects/mips to head by hand:

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copy over cfe_env.c...
This commit is contained in:
Warner Losh 2010-01-11 03:43:18 +00:00
commit 05ace0e870
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=202061
1 changed files with 74 additions and 0 deletions
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sys/dev/cfe/cfe_env.c Normal file
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/*-
* Copyright (c) 2009 Neelkanth Natu
* 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.
*/
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/systm.h>
#include <dev/cfe/cfe_api.h>
__FBSDID("$FreeBSD$");
#ifndef CFE_ENV_SIZE
#define CFE_ENV_SIZE PAGE_SIZE /* default is one page */
#endif
extern void cfe_env_init(void);
static char cfe_env_buf[CFE_ENV_SIZE];
void
cfe_env_init(void)
{
int idx, len;
char name[64], val[128], *cp, *cplim;
cp = cfe_env_buf;
cplim = cp + CFE_ENV_SIZE;
idx = 0;
while (1) {
if (cfe_enumenv(idx, name, sizeof(name), val, sizeof(val)) != 0)
break;
if (bootverbose)
printf("Importing CFE env: \"%s=%s\"\n", name, val);
/*
* name=val\0\0
*/
len = strlen(name) + 1 + strlen(val) + 1 + 1;
if (cplim - cp < len)
printf("No space to store CFE env: \"%s=%s\"\n",
name, val);
else
cp += sprintf(cp, "%s=%s", name, val) + 1;
++idx;
}
*cp++ = '\0';
kern_envp = cfe_env_buf;
}