bugdev.c: from Dale Rahn (bug device access)
exec_mvme.c: from sun3 port, adapted by me. I also fixed a bug that prevented ZMAGIC kernels from running. libsa.h: new file by me parse_args.c: by Theo de Raadt from OpenBSD with slight revisions from by me to make it fit the new format.
This commit is contained in:
chuck
parent
23ee5c7500
commit
d14981d7b7
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@ -0,0 +1,238 @@
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/* $NetBSD: bugdev.c,v 1.1 1996/05/17 20:59:53 chuck Exp $ */
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/*
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* Copyright (c) 1993 Paul Kranenburg
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
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||||
* This product includes software developed by Paul Kranenburg.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 BE LIABLE FOR ANY DIRECT, INDIRECT,
|
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/param.h>
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#include <sys/disklabel.h>
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#include <machine/prom.h>
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#include "stand.h"
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#include "libsa.h"
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void cputobsdlabel __P((struct disklabel *lp, struct cpu_disklabel *clp));
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int errno;
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struct bugsc_softc {
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int fd; /* Prom file descriptor */
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int poff; /* Partition offset */
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int psize; /* Partition size */
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short ctrl;
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short dev;
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} bugsc_softc[1];
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int
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devopen(f, fname, file)
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struct open_file *f;
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const char *fname;
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char **file;
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{
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register struct bugsc_softc *pp = &bugsc_softc[0];
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int error, i, dn = 0, pn = 0;
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char *dev, *cp;
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static char iobuf[MAXBSIZE];
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struct disklabel sdlabel;
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dev = bugargs.arg_start;
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/*
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* Extract partition # from boot device string.
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*/
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for (cp = dev; *cp; cp++) /* void */;
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while (*cp != '/' && cp > dev) {
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if (*cp == ':')
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pn = *(cp+1) - 'a';
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--cp;
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}
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pp->fd = bugscopen(f);
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if (pp->fd < 0) {
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printf("Can't open device `%s'\n", dev);
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return (ENXIO);
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}
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error = bugscstrategy(pp, F_READ, LABELSECTOR, DEV_BSIZE, iobuf, &i);
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if (error)
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return (error);
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if (i != DEV_BSIZE)
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return (EINVAL);
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cputobsdlabel(&sdlabel, (struct cpu_disklabel *)iobuf);
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pp->poff = sdlabel.d_partitions[pn].p_offset;
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pp->psize = sdlabel.d_partitions[pn].p_size;
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f->f_dev = devsw;
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f->f_devdata = (void *)pp;
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*file = (char *)fname;
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return (0);
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}
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/* silly block scale factor */
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#define BUG_BLOCK_SIZE 256
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#define BUG_SCALE (512/BUG_BLOCK_SIZE)
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int
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bugscstrategy(devdata, func, dblk, size, buf, rsize)
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void *devdata;
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int func;
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daddr_t dblk;
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size_t size;
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void *buf;
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size_t *rsize;
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{
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struct mvmeprom_dskio dio;
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register struct bugsc_softc *pp = (struct bugsc_softc *)devdata;
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daddr_t blk = dblk + pp->poff;
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twiddle();
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dio.ctrl_lun = pp->ctrl;
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dio.dev_lun = pp->dev;
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dio.status = 0;
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dio.pbuffer = buf;
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dio.blk_num = blk * BUG_SCALE;
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dio.blk_cnt = size / BUG_BLOCK_SIZE; /* assumed size in bytes */
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dio.flag = 0;
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dio.addr_mod = 0;
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#ifdef DEBUG
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printf("bugscstrategy: size=%d blk=%d buf=%x\n", size, blk, buf);
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printf("ctrl %d dev %d\n", dio.ctrl_lun, dio.dev_lun);
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#endif
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mvmeprom_diskrd(&dio);
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*rsize = dio.blk_cnt * BUG_BLOCK_SIZE;
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#ifdef DEBUG
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printf("rsize %d status %x\n", *rsize, dio.status);
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#endif
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if (dio.status)
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return (EIO);
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return (0);
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}
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int
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bugscopen(f)
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struct open_file *f;
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{
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#ifdef DEBUG
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printf("bugscopen:\n");
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#endif
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f->f_devdata = (void *)bugsc_softc;
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bugsc_softc[0].ctrl = (short)bugargs.ctrl_lun;
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bugsc_softc[0].dev = (short)bugargs.dev_lun;
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#ifdef DEBUG
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printf("using mvmebug ctrl %d dev %d\n",
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bugsc_softc[0].ctrl, bugsc_softc[0].dev);
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#endif
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return (0);
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}
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int
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bugscclose(f)
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struct open_file *f;
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{
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return (EIO);
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}
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int
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bugscioctl(f, cmd, data)
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struct open_file *f;
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u_long cmd;
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void *data;
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{
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return (EIO);
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}
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void
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cputobsdlabel(lp, clp)
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struct disklabel *lp;
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struct cpu_disklabel *clp;
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{
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int i;
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lp->d_magic = clp->magic1;
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lp->d_type = clp->type;
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lp->d_subtype = clp->subtype;
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bcopy(clp->vid_vd, lp->d_typename, 16);
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bcopy(clp->packname, lp->d_packname, 16);
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lp->d_secsize = clp->cfg_psm;
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lp->d_nsectors = clp->cfg_spt;
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lp->d_ncylinders = clp->cfg_trk; /* trk is really num of cyl! */
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lp->d_ntracks = clp->cfg_hds;
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lp->d_secpercyl = clp->secpercyl;
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lp->d_secperunit = clp->secperunit;
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lp->d_secpercyl = clp->secpercyl;
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lp->d_secperunit = clp->secperunit;
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lp->d_sparespertrack = clp->sparespertrack;
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lp->d_sparespercyl = clp->sparespercyl;
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lp->d_acylinders = clp->acylinders;
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lp->d_rpm = clp->rpm;
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lp->d_interleave = clp->cfg_ilv;
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lp->d_trackskew = clp->cfg_sof;
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lp->d_cylskew = clp->cylskew;
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lp->d_headswitch = clp->headswitch;
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/* this silly table is for winchester drives */
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switch (clp->cfg_ssr) {
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case 0:
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lp->d_trkseek = 0;
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break;
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case 1:
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lp->d_trkseek = 6;
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break;
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case 2:
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lp->d_trkseek = 10;
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break;
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case 3:
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lp->d_trkseek = 15;
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break;
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case 4:
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lp->d_trkseek = 20;
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break;
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default:
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lp->d_trkseek = 0;
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break;
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}
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lp->d_flags = clp->flags;
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for (i = 0; i < NDDATA; i++)
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lp->d_drivedata[i] = clp->drivedata[i];
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for (i = 0; i < NSPARE; i++)
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lp->d_spare[i] = clp->spare[i];
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lp->d_magic2 = clp->magic2;
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lp->d_checksum = clp->checksum;
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lp->d_npartitions = clp->partitions;
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lp->d_bbsize = clp->bbsize;
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lp->d_sbsize = clp->sbsize;
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bcopy(clp->vid_4, &(lp->d_partitions[0]),sizeof (struct partition) * 4);
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bcopy(clp->cfg_4, &(lp->d_partitions[4]), sizeof (struct partition)
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* ((MAXPARTITIONS < 16) ? (MAXPARTITIONS - 4) : 12));
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}
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@ -0,0 +1,190 @@
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/* $NetBSD: exec_mvme.c,v 1.1 1996/05/17 21:00:02 chuck Exp $ */
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/*-
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* Copyright (c) 1982, 1986, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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||||
*
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||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
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||||
* 4. Neither the name of the University nor the names of its contributors
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||||
* may be used to endorse or promote products derived from this software
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||||
* without specific prior written permission.
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||||
*
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||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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
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||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
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||||
*
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||||
* @(#)boot.c 8.1 (Berkeley) 6/10/93
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||||
*/
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||||
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#include <sys/param.h>
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#include <sys/reboot.h>
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#include <machine/prom.h>
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#include <a.out.h>
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#include "stand.h"
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#include "libsa.h"
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/*ARGSUSED*/
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void
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exec_mvme(file, flag)
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char *file;
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int flag;
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||||
{
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||||
char *loadaddr;
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||||
register int io;
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||||
struct exec x;
|
||||
int cc, magic;
|
||||
void (*entry)();
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||||
register char *cp;
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||||
register int *ip;
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||||
|
||||
#ifdef DEBUG
|
||||
printf("exec_mvme: file=%s flag=0x%x\n", file, flag);
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||||
#endif
|
||||
|
||||
io = open(file, 0);
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||||
if (io < 0)
|
||||
return;
|
||||
|
||||
/*
|
||||
* Read in the exec header, and validate it.
|
||||
*/
|
||||
if (read(io, (char *)&x, sizeof(x)) != sizeof(x))
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||||
goto shread;
|
||||
if (N_BADMAG(x)) {
|
||||
errno = EFTYPE;
|
||||
goto closeout;
|
||||
}
|
||||
|
||||
/*
|
||||
* note: on the mvme ports, the kernel is linked in such a way that
|
||||
* its entry point is the first item in .text, and thus a_entry can
|
||||
* be used to determine both the load address and the entry point.
|
||||
* (also note that we make use of the fact that the kernel will live
|
||||
* in a VA == PA range of memory ... otherwise we would take
|
||||
* loadaddr as a parameter and let the kernel relocate itself!)
|
||||
*
|
||||
* note that ZMAGIC files included the a.out header in the text area
|
||||
* so we must mask that off (has no effect on the other formats
|
||||
*/
|
||||
loadaddr = (void *)(x.a_entry & ~sizeof(x));
|
||||
|
||||
cp = loadaddr;
|
||||
magic = N_GETMAGIC(x);
|
||||
if (magic == ZMAGIC)
|
||||
cp += sizeof(x);
|
||||
entry = (void (*)())cp;
|
||||
|
||||
/*
|
||||
* Leave a copy of the exec header before the text.
|
||||
* The sun3 kernel uses this to verify that the
|
||||
* symbols were loaded by this boot program.
|
||||
*/
|
||||
bcopy(&x, cp - sizeof(x), sizeof(x));
|
||||
|
||||
/*
|
||||
* Read in the text segment.
|
||||
*/
|
||||
printf("%d", x.a_text);
|
||||
cc = x.a_text;
|
||||
if (magic == ZMAGIC)
|
||||
cc = cc - sizeof(x); /* a.out header part of text in zmagic */
|
||||
if (read(io, cp, cc) != cc)
|
||||
goto shread;
|
||||
cp += cc;
|
||||
|
||||
/*
|
||||
* NMAGIC may have a gap between text and data.
|
||||
*/
|
||||
if (magic == NMAGIC) {
|
||||
register int mask = N_PAGSIZ(x) - 1;
|
||||
while ((int)cp & mask)
|
||||
*cp++ = 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Read in the data segment.
|
||||
*/
|
||||
printf("+%d", x.a_data);
|
||||
if (read(io, cp, x.a_data) != x.a_data)
|
||||
goto shread;
|
||||
cp += x.a_data;
|
||||
|
||||
/*
|
||||
* Zero out the BSS section.
|
||||
* (Kernel doesn't care, but do it anyway.)
|
||||
*/
|
||||
printf("+%d", x.a_bss);
|
||||
cc = x.a_bss;
|
||||
while ((int)cp & 3) {
|
||||
*cp++ = 0;
|
||||
--cc;
|
||||
}
|
||||
ip = (int*)cp;
|
||||
cp += cc;
|
||||
while ((char*)ip < cp)
|
||||
*ip++ = 0;
|
||||
|
||||
/*
|
||||
* Read in the symbol table and strings.
|
||||
* (Always set the symtab size word.)
|
||||
*/
|
||||
*ip++ = x.a_syms;
|
||||
cp = (char*) ip;
|
||||
|
||||
if (x.a_syms > 0 && (flag & RB_NOSYM) == 0) {
|
||||
|
||||
/* Symbol table and string table length word. */
|
||||
cc = x.a_syms;
|
||||
printf("+[%d", cc);
|
||||
cc += sizeof(int); /* strtab length too */
|
||||
if (read(io, cp, cc) != cc)
|
||||
goto shread;
|
||||
cp += x.a_syms;
|
||||
ip = (int*)cp; /* points to strtab length */
|
||||
cp += sizeof(int);
|
||||
|
||||
/* String table. Length word includes itself. */
|
||||
cc = *ip;
|
||||
printf("+%d]", cc);
|
||||
cc -= sizeof(int);
|
||||
if (cc <= 0)
|
||||
goto shread;
|
||||
if (read(io, cp, cc) != cc)
|
||||
goto shread;
|
||||
cp += cc;
|
||||
}
|
||||
printf("=0x%x\n", cp - loadaddr);
|
||||
close(io);
|
||||
|
||||
printf("Start @ 0x%x ...\n", (int)entry);
|
||||
(*entry)(flag, 0, cp, 0, 0);
|
||||
printf("exec: kernel returned!\n");
|
||||
return;
|
||||
|
||||
shread:
|
||||
printf("exec: short read\n");
|
||||
errno = EIO;
|
||||
closeout:
|
||||
close(io);
|
||||
return;
|
||||
}
|
||||
|
|
@ -0,0 +1,24 @@
|
|||
/* $NetBSD: libsa.h,v 1.1 1996/05/17 21:00:14 chuck Exp $ */
|
||||
|
||||
/*
|
||||
* libsa prototypes
|
||||
*/
|
||||
|
||||
#include "libbug.h"
|
||||
|
||||
/* bugdev.c */
|
||||
int bugscopen __P((struct open_file *, ...));
|
||||
int bugscclose __P((struct open_file *));
|
||||
int bugscioctl __P((struct open_file *, u_long, void *));
|
||||
int bugscstrategy __P((void *, int, daddr_t, size_t, void *, size_t *));
|
||||
|
||||
/* exec_mvme.c */
|
||||
void exec_mvme __P((char *, int));
|
||||
|
||||
/* parse_args.c */
|
||||
void parse_args __P((char **, int *));
|
||||
|
||||
#ifndef RB_NOSYM
|
||||
#define RB_NOSYM 0x400
|
||||
#endif
|
||||
|
||||
|
|
@ -0,0 +1,94 @@
|
|||
/* $NetBSD: parse_args.c,v 1.1 1996/05/17 21:00:22 chuck Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1995 Theo de Raadt
|
||||
*
|
||||
* 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.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed under OpenBSD by
|
||||
* Theo de Raadt for Willowglen Singapore.
|
||||
* 4. The name of the author may not be used to endorse or promote products
|
||||
* derived from this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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/reboot.h>
|
||||
#include <machine/prom.h>
|
||||
#include <a.out.h>
|
||||
|
||||
#include "stand.h"
|
||||
#include "libsa.h"
|
||||
|
||||
#define KERNEL_NAME "netbsd"
|
||||
|
||||
struct flags {
|
||||
char c;
|
||||
short bit;
|
||||
} bf[] = {
|
||||
{ 'a', RB_ASKNAME },
|
||||
{ 'b', RB_HALT },
|
||||
{ 'y', RB_NOSYM },
|
||||
{ 'd', RB_KDB },
|
||||
{ 'm', RB_MINIROOT },
|
||||
{ 'r', RB_DFLTROOT },
|
||||
{ 's', RB_SINGLE },
|
||||
};
|
||||
|
||||
void
|
||||
parse_args(filep, flagp)
|
||||
|
||||
char **filep;
|
||||
int *flagp;
|
||||
|
||||
{
|
||||
char *name = KERNEL_NAME, *ptr;
|
||||
int i, howto = 0;
|
||||
char c;
|
||||
|
||||
if (bugargs.arg_start != bugargs.arg_end) {
|
||||
ptr = bugargs.arg_start;
|
||||
while (c = *ptr) {
|
||||
while (c == ' ')
|
||||
c = *++ptr;
|
||||
if (c == '\0')
|
||||
return;
|
||||
if (c != '-') {
|
||||
name = ptr;
|
||||
while ((c = *++ptr) && c != ' ')
|
||||
;
|
||||
if (c)
|
||||
*ptr++ = 0;
|
||||
continue;
|
||||
}
|
||||
while ((c = *++ptr) && c != ' ') {
|
||||
for (i = 0; i < sizeof(bf)/sizeof(bf[0]); i++)
|
||||
if (bf[i].c == c) {
|
||||
howto |= bf[i].bit;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
*flagp = howto;
|
||||
*filep = name;
|
||||
}
|
||||
Loading…
Reference in New Issue