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File: [cvs.NetBSD.org] / src / sys / arch / next68k / stand / boot / machdep.c (download)

Revision 1.7, Mon Dec 24 15:46:45 2007 UTC (10 years, 7 months ago) by perry
Branch: MAIN
CVS Tags: yamt-pf42-baseX, yamt-pf42-base4, yamt-pf42-base3, yamt-pf42-base2, yamt-pf42-base, yamt-pf42, yamt-pagecache-tag8, yamt-pagecache-base9, yamt-pagecache-base8, yamt-pagecache-base7, yamt-pagecache-base6, yamt-pagecache-base5, yamt-pagecache-base4, yamt-pagecache-base3, yamt-pagecache-base2, yamt-pagecache-base, yamt-pagecache, yamt-nfs-mp-base9, yamt-nfs-mp-base8, yamt-nfs-mp-base7, yamt-nfs-mp-base6, yamt-nfs-mp-base5, yamt-nfs-mp-base4, yamt-nfs-mp-base3, yamt-nfs-mp-base2, yamt-nfs-mp-base11, yamt-nfs-mp-base10, yamt-nfs-mp-base, yamt-nfs-mp, yamt-lazymbuf-base15, yamt-lazymbuf-base14, wrstuden-revivesa-base-4, wrstuden-revivesa-base-3, wrstuden-revivesa-base-2, wrstuden-revivesa-base-1, wrstuden-revivesa-base, wrstuden-revivesa, vmlocking2-base3, uebayasi-xip-base7, uebayasi-xip-base6, uebayasi-xip-base5, uebayasi-xip-base4, uebayasi-xip-base3, uebayasi-xip-base2, uebayasi-xip-base1, uebayasi-xip-base, uebayasi-xip, tls-maxphys-base-20171202, tls-maxphys-base, tls-maxphys, tls-earlyentropy-base, tls-earlyentropy, simonb-wapbl-nbase, simonb-wapbl-base, simonb-wapbl, rmind-uvmplock-nbase, rmind-uvmplock-base, rmind-uvmplock, rmind-smpnet-nbase, rmind-smpnet-base, rmind-smpnet, riastradh-xf86-video-intel-2-7-1-pre-2-21-15, riastradh-drm2-base3, riastradh-drm2-base2, riastradh-drm2-base1, riastradh-drm2-base, riastradh-drm2, prg-localcount2-base3, prg-localcount2-base2, prg-localcount2-base1, prg-localcount2-base, prg-localcount2, phil-wifi-base, phil-wifi, pgoyette-localcount-base, pgoyette-localcount-20170426, pgoyette-localcount-20170320, pgoyette-localcount-20170107, pgoyette-localcount-20161104, pgoyette-localcount-20160806, pgoyette-localcount-20160726, pgoyette-localcount, pgoyette-compat-base, pgoyette-compat-0728, pgoyette-compat-0625, pgoyette-compat-0521, pgoyette-compat-0502, pgoyette-compat-0422, pgoyette-compat-0415, pgoyette-compat-0407, pgoyette-compat-0330, pgoyette-compat-0322, pgoyette-compat-0315, pgoyette-compat, perseant-stdc-iso10646-base, perseant-stdc-iso10646, nick-nhusb-base-20170825, nick-nhusb-base-20170204, nick-nhusb-base-20161204, nick-nhusb-base-20161004, nick-nhusb-base-20160907, nick-nhusb-base-20160529, nick-nhusb-base-20160422, nick-nhusb-base-20160319, nick-nhusb-base-20151226, nick-nhusb-base-20150921, nick-nhusb-base-20150606, nick-nhusb-base-20150406, nick-nhusb-base, nick-nhusb, nick-net80211-sync-base, nick-net80211-sync, nick-hppapmap-base4, nick-hppapmap-base3, nick-hppapmap-base2, nick-hppapmap-base, nick-hppapmap, netbsd-8-base, netbsd-8-0-RELEASE, netbsd-8-0-RC2, netbsd-8-0-RC1, netbsd-8, netbsd-7-nhusb-base-20170116, netbsd-7-nhusb-base, netbsd-7-nhusb, netbsd-7-base, netbsd-7-1-RELEASE, netbsd-7-1-RC2, netbsd-7-1-RC1, netbsd-7-1-2-RELEASE, netbsd-7-1-1-RELEASE, netbsd-7-1, netbsd-7-0-RELEASE, netbsd-7-0-RC3, netbsd-7-0-RC2, netbsd-7-0-RC1, netbsd-7-0-2-RELEASE, netbsd-7-0-1-RELEASE, netbsd-7-0, netbsd-7, netbsd-6-base, netbsd-6-1-RELEASE, netbsd-6-1-RC4, netbsd-6-1-RC3, netbsd-6-1-RC2, netbsd-6-1-RC1, netbsd-6-1-5-RELEASE, netbsd-6-1-4-RELEASE, netbsd-6-1-3-RELEASE, netbsd-6-1-2-RELEASE, netbsd-6-1-1-RELEASE, netbsd-6-1, netbsd-6-0-RELEASE, netbsd-6-0-RC2, netbsd-6-0-RC1, netbsd-6-0-6-RELEASE, netbsd-6-0-5-RELEASE, netbsd-6-0-4-RELEASE, netbsd-6-0-3-RELEASE, netbsd-6-0-2-RELEASE, netbsd-6-0-1-RELEASE, netbsd-6-0, netbsd-6, netbsd-5-base, netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-RC3, netbsd-5-0-RC2, netbsd-5-0-RC1, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, netbsd-5, mjf-devfs2-base, mjf-devfs2, mjf-devfs-base, matt-premerge-20091211, matt-nb8-mediatek-base, matt-nb8-mediatek, matt-nb6-plus-nbase, matt-nb6-plus-base, matt-nb6-plus, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b, matt-mips64-premerge-20101231, matt-mips64-base2, matt-armv6-nbase, matt-armv6-base, localcount-20160914, khorben-n900, keiichi-mipv6-nbase, keiichi-mipv6-base, keiichi-mipv6, jymxensuspend-base, jym-xensuspend-nbase, jym-xensuspend-base, jym-xensuspend, jruoho-x86intr-base, jruoho-x86intr, jmcneill-usbmp-pre-base2, jmcneill-usbmp-base9, jmcneill-usbmp-base8, jmcneill-usbmp-base7, jmcneill-usbmp-base6, jmcneill-usbmp-base5, jmcneill-usbmp-base4, jmcneill-usbmp-base3, jmcneill-usbmp-base2, jmcneill-usbmp-base10, jmcneill-usbmp-base, jmcneill-usbmp, jmcneill-audiomp3-base, jmcneill-audiomp3, jdolecek-ncq-base, jdolecek-ncq, hpcarm-cleanup-nbase, hpcarm-cleanup-base, haad-nbase2, haad-dm-base2, haad-dm-base1, haad-dm-base, haad-dm, cherry-xenmp-base, cherry-xenmp, bouyer-xeni386-nbase, bouyer-xeni386-base, bouyer-socketcan-base1, bouyer-socketcan-base, bouyer-socketcan, bouyer-quota2-nbase, bouyer-quota2-base, bouyer-quota2, agc-symver-base, agc-symver, ad-socklock-base1, ad-audiomp2-base, ad-audiomp2, HEAD
Changes since 1.6: +2 -2 lines

Remove __attribute__((__noreturn__)) from things already marked __dead
Found by the department of redundancy department.

/*	$NetBSD: machdep.c,v 1.7 2007/12/24 15:46:45 perry Exp $	*/
/*
 * Copyright (c) 1998 Darrin Jewell
 * Copyright (c) 1994 Rolf Grossmann
 * 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.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *      This product includes software developed by Rolf Grossmann.
 * 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/types.h>

#include <stand.h>
#include <next68k/next68k/nextrom.h>

char *mg;

#define	MON(type, off) (*(type *)((u_int) (mg) + off))

extern int entry_point;

#ifdef DEBUG
int debug = 1;
#else
int debug = 0;
#endif

#ifdef DEBUG
#define DPRINTF(x) printf x
#else
#define DPRINTF(x)
#endif

void
machdep_start(char *entry, int howto, char *loadaddr, char *ssym, char *esym)
{
	DPRINTF(("machdep_start(entry=%p,howto=0x%x,loadaddr=%p,ssym=%p,esym=%p\n",
		 entry, howto, loadaddr, ssym, esym));
	MON(int,MG_boot_how) = howto;
	entry_point = (int)entry + (int)loadaddr;
	DPRINTF(("start=0x%lx\n", (u_long)entry_point));

	/* @@@ hack to pass esym to kernel */
	*((u_int *)loadaddr) = (u_int)esym;

	/* return to exec, so that main can return entry point */
}

typedef int (*getcptr)(void);
typedef int (*putcptr)(int);

int
getchar(void)
{
	return(MON(getcptr,MG_getc)());
}

void
putchar(int c)
{
	MON(putcptr,MG_putc)(c);
}

__dead void
_rtt(void)
{
	extern __dead void _halt(void);

	printf("Press any key to halt.\n");
	getchar();
	_halt();
	/* NOTREACHED */
}

struct trapframe {
	int dregs[8];
	int aregs[8];
	short sr;
	int pc;
	u_short fmt:4,
		vec:12;
	char info[0];
} __attribute__ ((packed));

int trap(struct trapframe *);

int
trap(struct trapframe *fp)
{
	static int intrap = 0;

	if (intrap)
		return 0;
	intrap = 1;
	printf("Got unexpected trap: format=%x vector=%x sr=%x pc=%x\n",
	       fp->fmt, fp->vec, fp->sr, fp->pc);
	printf("dregs: %x %x %x %x %x %x %x %x\n",
	       fp->dregs[0], fp->dregs[1], fp->dregs[2], fp->dregs[3], 
	       fp->dregs[4], fp->dregs[5], fp->dregs[6], fp->dregs[7]);
	printf("aregs: %x %x %x %x %x %x %x %x\n",
	       fp->aregs[0], fp->aregs[1], fp->aregs[2], fp->aregs[3], 
	       fp->aregs[4], fp->aregs[5], fp->aregs[6], fp->aregs[7]);
	intrap = 0;
#ifdef DEBUG
	if (debug)
	{
		int i;
		int *p;
		p = (int *)(fp->pc);
		for (i = 0; i < 64; i++) {
			if ((i % 8) == 0)
				printf ("\npc %x: ", (int)&p[i-16]);
			printf ("%x ", p[i]);
		}
		p = (int *)(fp->info);
		for (i = 0; i < 64; i++) {
			if ((i % 8) == 0)
				printf ("\nstk %x: ", (int)&p[i-16]);
			printf ("%x ", p[i]);
		}
		printf ("\n");
	}
#endif
	printf("Halting.\n");
	return 0;
}