jehanne/sys/src/kern/boot/paq.c

79 lines
1.6 KiB
C

/*
* This file is part of the UCB release of Plan 9. It is subject to the license
* terms in the LICENSE file found in the top-level directory of this
* distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
* part of the UCB release of Plan 9, including this file, may be copied,
* modified, propagated, or distributed except according to the terms contained
* in the LICENSE file.
*/
#include <u.h>
#include <libc.h>
#include "../boot/boot.h"
char *fparts[] =
{
"add bootldr 0x0000000 0x0040000",
"add params 0x0040000 0x0080000",
"add kernel 0x0080000 0x0140000",
"add user 0x0140000 0x0200000",
"add ramdisk 0x0200000 0x0600000",
};
void
configpaq(Method* m)
{
int fd;
int i;
if(bind("#F", "/dev", MAFTER) < 0)
fatal("bind #c");
if(bind("#p", "/proc", MREPL) < 0)
fatal("bind #p");
fd = open("/dev/flash/flashctl", OWRITE);
if(fd < 0)
fatal("opening flashctl");
for(i = 0; i < nelem(fparts); i++)
if(jehanne_fprint(fd, fparts[i]) < 0)
fatal(fparts[i]);
close(fd);
}
int
connectpaq(void)
{
int p[2];
char **arg, **argp;
jehanne_print("paq...");
if(jehanne_pipe(p)<0)
fatal("pipe");
switch(jehanne_fork()){
case -1:
fatal("fork");
case 0:
arg = jehanne_malloc(10*sizeof(char*));
argp = arg;
*argp++ = "paqfs";
*argp++ = "-v";
*argp++ = "-i";
*argp++ = "/dev/flash/ramdisk";
*argp = 0;
if(jehanne_dup(p[0], 0) != 0)
fatal("jehanne_dup(p[0], 0)");
if(jehanne_dup(p[1], 1) != 1)
fatal("jehanne_dup(p[1], 1)");
close(p[0]);
close(p[1]);
exec("/boot/paqfs", (const char**)arg);
fatal("can't exec paqfs");
default:
break;
}
jehanne_waitpid();
close(p[1]);
return p[0];
}