470 lines
11 KiB
C
470 lines
11 KiB
C
/* $NetBSD: mkioconf.c,v 1.56 2001/10/01 04:22:00 simonb Exp $ */
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/*
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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*
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* All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Lawrence Berkeley Laboratories.
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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
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* 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
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* 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
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* SUCH DAMAGE.
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*
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* from: @(#)mkioconf.c 8.1 (Berkeley) 6/6/93
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*/
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#include <sys/param.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "config.h"
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/*
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* Make ioconf.c.
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*/
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static int cf_locnames_print(const char *, void *, void *);
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static int cforder(const void *, const void *);
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static int emitcfdata(FILE *);
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static int emitcfdrivers(FILE *);
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static int emitexterns(FILE *);
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static int emithdr(FILE *);
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static int emitloc(FILE *);
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static int emitpseudo(FILE *);
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static int emitpv(FILE *);
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static int emitroots(FILE *);
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static int emitvfslist(FILE *);
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static int emitname2blk(FILE *);
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#define SEP(pos, max) (((u_int)(pos) % (max)) == 0 ? "\n\t" : " ")
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#define ARRNAME(n, l) (strchr((n), ARRCHR) && strncmp((n), (l), strlen((l))) == 0)
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/*
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* NEWLINE can only be used in the emitXXX functions.
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* In most cases it can be subsumed into an fprintf.
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*/
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#define NEWLINE if (putc('\n', fp) < 0) return (1)
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int
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mkioconf(void)
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{
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FILE *fp;
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int v;
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qsort(packed, npacked, sizeof *packed, cforder);
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if ((fp = fopen("ioconf.c", "w")) == NULL) {
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(void)fprintf(stderr, "config: cannot write ioconf.c: %s\n",
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strerror(errno));
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return (1);
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}
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v = emithdr(fp);
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if (v != 0 || emitcfdrivers(fp) || emitexterns(fp) || emitloc(fp) ||
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emitpv(fp) || emitcfdata(fp) || emitroots(fp) || emitpseudo(fp) ||
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emitvfslist(fp) || emitname2blk(fp)) {
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if (v >= 0)
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(void)fprintf(stderr,
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"config: error writing ioconf.c: %s\n",
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strerror(errno));
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(void)fclose(fp);
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/* (void)unlink("ioconf.c"); */
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return (1);
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}
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(void)fclose(fp);
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return (0);
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}
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static int
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cforder(const void *a, const void *b)
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{
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int n1, n2;
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n1 = (*(struct devi **)a)->i_cfindex;
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n2 = (*(struct devi **)b)->i_cfindex;
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return (n1 - n2);
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}
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static int
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emithdr(FILE *ofp)
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{
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FILE *ifp;
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int n, rv;
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char ifnbuf[200], buf[BUFSIZ];
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char *ifn;
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if (fprintf(ofp, "\
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/*\n\
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* MACHINE GENERATED: DO NOT EDIT\n\
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*\n\
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* ioconf.c, from \"%s\"\n\
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*/\n\n", conffile) < 0)
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return (1);
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rv = 0;
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(void)snprintf(ifnbuf, sizeof(ifnbuf), "arch/%s/conf/ioconf.incl.%s",
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machine, machine);
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ifn = sourcepath(ifnbuf);
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if ((ifp = fopen(ifn, "r")) != NULL) {
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while ((n = fread(buf, 1, sizeof(buf), ifp)) > 0)
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if (fwrite(buf, 1, n, ofp) != n) {
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rv = 1;
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break;
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}
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if (rv == 0 && ferror(ifp)) {
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(void)fprintf(stderr, "config: error reading %s: %s\n",
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ifn, strerror(errno));
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rv = -1;
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}
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(void)fclose(ifp);
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} else {
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if (fputs("\
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#include <sys/param.h>\n\
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#include <sys/conf.h>\n\
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#include <sys/device.h>\n\
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#include <sys/mount.h>\n", ofp) < 0)
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rv = 1;
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}
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free(ifn);
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return (rv);
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}
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static int
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emitcfdrivers(FILE *fp)
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{
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struct devbase *d;
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NEWLINE;
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for (d = allbases; d != NULL; d = d->d_next) {
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if (!devbase_has_instances(d, WILD))
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continue;
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if (fprintf(fp, "struct cfdriver %s_cd = {\n",
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d->d_name) < 0)
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return (1);
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if (fprintf(fp, "\tNULL, \"%s\", %s\n",
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d->d_name, d->d_classattr != NULL ?
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d->d_classattr->a_devclass : "DV_DULL") < 0)
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return (1);
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if (fprintf(fp, "};\n\n") < 0)
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return (1);
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}
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return (0);
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}
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static int
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emitexterns(FILE *fp)
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{
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struct deva *da;
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NEWLINE;
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for (da = alldevas; da != NULL; da = da->d_next) {
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if (!deva_has_instances(da, WILD))
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continue;
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if (fprintf(fp, "extern struct cfattach %s_ca;\n",
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da->d_name) < 0)
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return (1);
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}
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NEWLINE;
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return (0);
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}
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/*
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* Emit an initialized array of character strings describing this
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* attribute's locators.
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*/
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static int
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cf_locnames_print(const char *name, void *value, void *arg)
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{
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struct attr *a;
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struct nvlist *nv;
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FILE *fp = arg;
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a = value;
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if (a->a_locs) {
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if (fprintf(fp, "const char *%scf_locnames[] = { ", name) < 0)
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return (1);
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for (nv = a->a_locs; nv; nv = nv->nv_next)
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if (fprintf(fp, "\"%s\", ", nv->nv_name) < 0)
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return (1);
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if (fprintf(fp, "NULL};\n") < 0)
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return (1);
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}
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return 0;
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}
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static int
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emitloc(FILE *fp)
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{
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int i;
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if (locators.used != 0) {
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if (fprintf(fp, "\n/* locators */\n\
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static int loc[%d] = {", locators.used) < 0)
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return (1);
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for (i = 0; i < locators.used; i++)
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if (fprintf(fp, "%s%s,", SEP(i, 8),
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locators.vec[i]) < 0)
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return (1);
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if (fprintf(fp, "\n};\n") < 0)
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return (1);
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} else if (*packed != NULL) {
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/* We need to have *something*. */
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if (fprintf(fp, "\n/* locators */\n\
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static int loc[1] = { -1 };\n") < 0)
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return (1);
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}
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if (*packed != NULL)
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if (fprintf(fp,
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"\nconst char *nullcf_locnames[] = {NULL};\n") < 0)
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return (1);
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if (locators.used != 0)
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return ht_enumerate(attrtab, cf_locnames_print, fp);
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return (0);
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}
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/*
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* Emit global parents-vector.
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*/
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static int
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emitpv(FILE *fp)
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{
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int i;
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if (parents.used == 0)
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return (0);
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if (fprintf(fp, "\n/* parent vectors */\n\
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static short pv[%d] = {", parents.used) < 0)
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return (1);
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for (i = 0; i < parents.used; i++)
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if (fprintf(fp, "%s%d,", SEP(i, 16), parents.vec[i]) < 0)
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return (1);
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return (fprintf(fp, "\n};\n") < 0);
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}
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/*
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* Emit the cfdata array.
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*/
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static int
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emitcfdata(FILE *fp)
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{
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struct devi **p, *i, **par;
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int unit, v;
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const char *state, *basename, *attachment;
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struct nvlist *nv;
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struct attr *a;
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char *loc;
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char locbuf[20];
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const char *lastname = "";
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if (fprintf(fp, "\n\
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#define NORM FSTATE_NOTFOUND\n\
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#define STAR FSTATE_STAR\n\
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\n\
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struct cfdata cfdata[] = {\n\
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/* attachment driver unit state loc flags parents\n\
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locnames */\n") < 0)
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return (1);
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for (p = packed; (i = *p) != NULL; p++) {
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/* the description */
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if (fprintf(fp, "/*%3d: %s at ", i->i_cfindex, i->i_name) < 0)
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return (1);
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par = i->i_parents;
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for (v = 0; v < i->i_pvlen; v++)
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if (fprintf(fp, "%s%s", v == 0 ? "" : "|",
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i->i_parents[v]->i_name) < 0)
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return (1);
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if (v == 0 && fputs("root", fp) < 0)
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return (1);
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a = i->i_atattr;
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for (nv = a->a_locs, v = 0; nv != NULL; nv = nv->nv_next, v++) {
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if (ARRNAME(nv->nv_name, lastname)) {
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if (fprintf(fp, " %s %s",
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nv->nv_name, i->i_locs[v]) < 0)
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return (1);
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} else {
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if (fprintf(fp, " %s %s",
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nv->nv_name, i->i_locs[v]) < 0)
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return (1);
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lastname = nv->nv_name;
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}
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}
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if (fputs(" */\n", fp) < 0)
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return (-1);
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/* then the actual defining line */
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basename = i->i_base->d_name;
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attachment = i->i_atdeva->d_name;
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if (i->i_unit == STAR) {
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unit = i->i_base->d_umax;
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state = "STAR";
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} else {
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unit = i->i_unit;
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state = "NORM";
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}
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if (i->i_locoff >= 0) {
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(void)sprintf(locbuf, "loc+%3d", i->i_locoff);
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loc = locbuf;
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} else
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loc = "loc";
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if (fprintf(fp, "\
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{&%s_ca,%s&%s_cd,%s%2d, %s, %7s, %#6x, pv+%2d,\n\
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%scf_locnames},\n",
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attachment, strlen(attachment) < 6 ? "\t\t" : "\t",
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basename, strlen(basename) < 3 ? "\t\t" : "\t", unit,
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state, loc, i->i_cfflags, i->i_pvoff,
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a->a_locs ? a->a_name : "null") < 0)
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return (1);
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}
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return (fputs(" {0}\n};\n", fp) < 0);
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}
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/*
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* Emit the table of potential roots.
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*/
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static int
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emitroots(FILE *fp)
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{
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struct devi **p, *i;
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if (fputs("\nshort cfroots[] = {\n", fp) < 0)
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return (1);
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for (p = packed; (i = *p) != NULL; p++) {
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if (i->i_at != NULL)
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continue;
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if (i->i_unit != 0 &&
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(i->i_unit != STAR || i->i_base->d_umax != 0))
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(void)fprintf(stderr,
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"config: warning: `%s at root' is not unit 0\n",
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i->i_name);
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if (fprintf(fp, "\t%2d /* %s */,\n",
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i->i_cfindex, i->i_name) < 0)
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return (1);
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}
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return (fputs("\t-1\n};\n", fp) < 0);
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}
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/*
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* Emit pseudo-device initialization.
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*/
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static int
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emitpseudo(FILE *fp)
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{
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struct devi *i;
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struct devbase *d;
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if (fputs("\n/* pseudo-devices */\n", fp) < 0)
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return (1);
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for (i = allpseudo; i != NULL; i = i->i_next)
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if (fprintf(fp, "void %sattach(int);\n",
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i->i_base->d_name) < 0)
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return (1);
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if (fputs("\nstruct pdevinit pdevinit[] = {\n", fp) < 0)
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return (1);
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for (i = allpseudo; i != NULL; i = i->i_next) {
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d = i->i_base;
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if (fprintf(fp, "\t{ %sattach, %d },\n",
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d->d_name, d->d_umax) < 0)
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return (1);
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}
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return (fputs("\t{ 0, 0 }\n};\n", fp) < 0);
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}
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/*
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* Emit the initial VFS list.
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*/
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static int
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emitvfslist(FILE *fp)
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{
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struct nvlist *nv;
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if (fputs("\n/* file systems */\n", fp) < 0)
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return (1);
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/*
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* Walk the list twice, once to emit the externs,
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* and again to actually emit the vfs_list_initial[]
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* array.
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*/
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for (nv = fsoptions; nv != NULL; nv = nv->nv_next) {
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if (fprintf(fp, "extern struct vfsops %s_vfsops;\n",
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nv->nv_str) < 0)
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return (1);
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}
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if (fputs("\nstruct vfsops *vfs_list_initial[] = {\n", fp) < 0)
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return (1);
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for (nv = fsoptions; nv != NULL; nv = nv->nv_next) {
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if (fprintf(fp, "\t&%s_vfsops,\n", nv->nv_str) < 0)
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return (1);
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}
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if (fputs("\tNULL,\n};\n", fp) < 0)
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return (1);
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return (0);
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}
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/*
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* Emit name to major block number table.
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*/
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int
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emitname2blk(FILE *fp)
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{
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struct devbase *dev;
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if (fputs("\n/* device name to major block number */\n", fp) < 0)
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return (1);
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if (fprintf(fp, "struct devnametobdevmaj dev_name2blk[] = {\n") < 0)
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return (1);
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for (dev = allbases; dev != NULL; dev = dev->d_next) {
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if (dev->d_major == NODEV)
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continue;
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if (fprintf(fp, "\t{ \"%s\", %d },\n",
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dev->d_name, dev->d_major) < 0)
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return (1);
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}
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if (fprintf(fp, "\t{ NULL, 0 }\n};\n") < 0)
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return (1);
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return (0);
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}
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