512 lines
12 KiB
C
512 lines
12 KiB
C
/* $NetBSD: mkioconf.c,v 1.21 2012/03/11 21:16:08 dholland 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. 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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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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#include <sys/param.h>
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#include <err.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 "defs.h"
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/*
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* Make ioconf.c.
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*/
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static int cf_locators_print(const char *, void *, void *);
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static int cforder(const void *, const void *);
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static void emitcfdata(FILE *);
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static void emitcfdrivers(FILE *);
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static void emitexterns(FILE *);
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static void emitcfattachinit(FILE *);
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static void emithdr(FILE *);
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static void emitloc(FILE *);
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static void emitpseudo(FILE *);
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static void emitparents(FILE *);
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static void emitroots(FILE *);
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static void 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 putc('\n', fp)
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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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qsort(packed, npacked, sizeof *packed, cforder);
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if ((fp = fopen("ioconf.c.tmp", "w")) == NULL) {
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warn("cannot write ioconf.c");
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return (1);
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}
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emithdr(fp);
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emitcfdrivers(fp);
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emitexterns(fp);
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emitloc(fp);
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emitparents(fp);
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emitcfdata(fp);
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emitcfattachinit(fp);
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if (ioconfname == NULL) {
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emitroots(fp);
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emitpseudo(fp);
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if (!do_devsw)
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emitname2blk(fp);
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}
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fflush(fp);
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if (ferror(fp)) {
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warn("error writing ioconf.c");
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(void)fclose(fp);
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#if 0
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(void)unlink("ioconf.c.tmp");
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#endif
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return (1);
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}
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(void)fclose(fp);
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if (moveifchanged("ioconf.c.tmp", "ioconf.c") != 0) {
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warn("error renaming ioconf.c");
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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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cforder(const void *a, const void *b)
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{
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int n1, n2;
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n1 = (*(const struct devi * const *)a)->i_cfindex;
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n2 = (*(const struct devi * const *)b)->i_cfindex;
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return (n1 - n2);
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}
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static void
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emithdr(FILE *ofp)
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{
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FILE *ifp;
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int n;
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char ifnbuf[200], buf[BUFSIZ];
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char *ifn;
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autogen_comment(ofp, "ioconf.c");
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(void)snprintf(ifnbuf, sizeof(ifnbuf), "arch/%s/conf/ioconf.incl.%s",
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machine ? machine : "(null)", machine ? machine : "(null)");
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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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(void)fwrite(buf, 1, n, ofp);
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if (ferror(ifp))
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err(EXIT_FAILURE, "error reading %s", ifn);
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(void)fclose(ifp);
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} else {
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fputs("#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);
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}
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free(ifn);
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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_locators_print(const char *name, void *value, void *arg)
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{
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struct attr *a;
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struct loclist *ll;
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FILE *fp = arg;
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a = value;
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if (!a->a_iattr)
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return (0);
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if (a->a_locs) {
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fprintf(fp,
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"static const struct cfiattrdata %scf_iattrdata = {\n",
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name);
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fprintf(fp, "\t\"%s\", %d,\n\t{\n", name, a->a_loclen);
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for (ll = a->a_locs; ll; ll = ll->ll_next)
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fprintf(fp, "\t\t{ \"%s\", \"%s\", %s },\n",
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ll->ll_name,
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(ll->ll_string ? ll->ll_string : "NULL"),
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(ll->ll_string ? ll->ll_string : "0"));
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fprintf(fp, "\t}\n};\n");
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} else {
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fprintf(fp,
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"static const struct cfiattrdata %scf_iattrdata = {\n"
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"\t\"%s\", 0, {\n\t\t{ NULL, NULL, 0 },\n\t}\n};\n",
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name, name);
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}
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return 0;
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}
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static void
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emitcfdrivers(FILE *fp)
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{
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struct devbase *d;
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struct attrlist *al;
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struct attr *a;
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int has_iattrs;
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NEWLINE;
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ht_enumerate(attrtab, cf_locators_print, fp);
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NEWLINE;
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TAILQ_FOREACH(d, &allbases, d_next) {
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if (!devbase_has_instances(d, WILD))
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continue;
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has_iattrs = 0;
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for (al = d->d_attrs; al != NULL; al = al->al_next) {
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a = al->al_this;
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if (a->a_iattr == 0)
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continue;
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if (has_iattrs == 0)
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fprintf(fp,
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"static const struct cfiattrdata * const %s_attrs[] = { ",
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d->d_name);
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has_iattrs = 1;
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fprintf(fp, "&%scf_iattrdata, ", a->a_name);
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}
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if (has_iattrs)
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fprintf(fp, "NULL };\n");
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fprintf(fp, "CFDRIVER_DECL(%s, %s, ", d->d_name, /* ) */
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d->d_classattr != NULL ? d->d_classattr->a_devclass
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: "DV_DULL");
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if (has_iattrs)
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fprintf(fp, "%s_attrs", d->d_name);
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else
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fprintf(fp, "NULL");
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fprintf(fp, /* ( */ ");\n\n");
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}
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NEWLINE;
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fprintf(fp,
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"%sstruct cfdriver * const cfdriver_%s_%s[] = {\n",
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ioconfname ? "static " : "",
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ioconfname ? "ioconf" : "list",
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ioconfname ? ioconfname : "initial");
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TAILQ_FOREACH(d, &allbases, d_next) {
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if (!devbase_has_instances(d, WILD))
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continue;
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fprintf(fp, "\t&%s_cd,\n", d->d_name);
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}
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fprintf(fp, "\tNULL\n};\n");
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}
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static void
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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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TAILQ_FOREACH(da, &alldevas, d_next) {
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if (!deva_has_instances(da, WILD))
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continue;
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fprintf(fp, "extern struct cfattach %s_ca;\n",
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da->d_name);
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}
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}
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static void
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emitcfattachinit(FILE *fp)
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{
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struct devbase *d;
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struct deva *da;
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NEWLINE;
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TAILQ_FOREACH(d, &allbases, d_next) {
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if (!devbase_has_instances(d, WILD))
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continue;
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if (d->d_ahead == NULL)
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continue;
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fprintf(fp,
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"static struct cfattach * const %s_cfattachinit[] = {\n\t",
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d->d_name);
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for (da = d->d_ahead; da != NULL; da = da->d_bsame) {
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if (!deva_has_instances(da, WILD))
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continue;
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fprintf(fp, "&%s_ca, ", da->d_name);
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}
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fprintf(fp, "NULL\n};\n");
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}
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NEWLINE;
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fprintf(fp, "%sconst struct cfattachinit cfattach%s%s[] = {\n",
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ioconfname ? "static " : "",
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ioconfname ? "_ioconf_" : "init",
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ioconfname ? ioconfname : "");
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TAILQ_FOREACH(d, &allbases, d_next) {
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if (!devbase_has_instances(d, WILD))
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continue;
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if (d->d_ahead == NULL)
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continue;
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fprintf(fp, "\t{ \"%s\", %s_cfattachinit },\n",
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d->d_name, d->d_name);
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}
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fprintf(fp, "\t{ NULL, NULL }\n};\n");
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}
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static void
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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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fprintf(fp, "\n/* locators */\n"
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"static int loc[%d] = {", locators.used);
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for (i = 0; i < locators.used; i++)
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fprintf(fp, "%s%s,", SEP(i, 8), locators.vec[i]);
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fprintf(fp, "\n};\n");
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} else if (*packed != NULL) {
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/* We need to have *something*. */
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fprintf(fp, "\n/* locators */\n"
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"static int loc[1] = { -1 };\n");
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}
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}
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/*
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* Emit static parent data.
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*/
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static void
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emitparents(FILE *fp)
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{
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struct pspec *p;
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NEWLINE;
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TAILQ_FOREACH(p, &allpspecs, p_list) {
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if (p->p_devs == NULL || p->p_active != DEVI_ACTIVE)
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continue;
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fprintf(fp,
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"static const struct cfparent pspec%d = {\n", p->p_inst);
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fprintf(fp, "\t\"%s\", ", p->p_iattr->a_name);
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if (p->p_atdev != NULL) {
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fprintf(fp, "\"%s\", ", p->p_atdev->d_name);
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if (p->p_atunit == WILD)
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fprintf(fp, "DVUNIT_ANY");
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else
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fprintf(fp, "%d", p->p_atunit);
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} else
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fprintf(fp, "NULL, 0");
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fprintf(fp, "\n};\n");
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}
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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 void
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emitcfdata(FILE *fp)
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{
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struct devi **p, *i;
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struct pspec *ps;
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int unit, v;
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const char *state, *basename, *attachment;
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struct loclist *ll;
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struct attr *a;
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const char *loc;
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char locbuf[20];
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const char *lastname = "";
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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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"%sstruct cfdata cfdata%s%s[] = {\n"
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" /* driver attachment unit state "
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"loc flags pspec */\n",
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ioconfname ? "static " : "",
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ioconfname ? "_ioconf_" : "",
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ioconfname ? ioconfname : "");
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for (p = packed; (i = *p) != NULL; p++) {
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/* the description */
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fprintf(fp, "/*%3d: %s at ", i->i_cfindex, i->i_name);
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if ((ps = i->i_pspec) != NULL) {
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if (ps->p_atdev != NULL &&
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ps->p_atunit != WILD) {
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fprintf(fp, "%s%d", ps->p_atdev->d_name,
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ps->p_atunit);
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} else if (ps->p_atdev != NULL) {
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fprintf(fp, "%s?", ps->p_atdev->d_name);
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} else {
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fprintf(fp, "%s?", ps->p_iattr->a_name);
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}
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a = ps->p_iattr;
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for (ll = a->a_locs, v = 0; ll != NULL;
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ll = ll->ll_next, v++) {
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if (ARRNAME(ll->ll_name, lastname)) {
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fprintf(fp, " %s %s",
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ll->ll_name, i->i_locs[v]);
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} else {
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fprintf(fp, " %s %s",
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ll->ll_name,
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i->i_locs[v]);
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lastname = ll->ll_name;
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}
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}
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} else {
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a = NULL;
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fputs("root", fp);
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}
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fputs(" */\n", fp);
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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)snprintf(locbuf, sizeof(locbuf), "loc+%3d",
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i->i_locoff);
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loc = locbuf;
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} else
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loc = "loc";
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fprintf(fp, " { \"%s\",%s\"%s\",%s%2d, %s, %7s, %#6x, ",
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basename, strlen(basename) < 8 ? "\t\t"
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: "\t",
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attachment, strlen(attachment) < 5 ? "\t\t"
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: "\t",
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unit, state, loc, i->i_cfflags);
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if (ps != NULL)
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fprintf(fp, "&pspec%d },\n", ps->p_inst);
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else
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fputs("NULL },\n", fp);
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}
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fprintf(fp, " { %s,%s%s,%s%2d, %s, %7s, %#6x, %s }\n};\n",
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"NULL", "\t\t", "NULL", "\t\t", 0, "0", "NULL", 0, "NULL");
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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 void
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emitroots(FILE *fp)
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{
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struct devi **p, *i;
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fputs("\nconst short cfroots[] = {\n", fp);
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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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warnx("warning: `%s at root' is not unit 0", i->i_name);
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fprintf(fp, "\t%2d /* %s */,\n",
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i->i_cfindex, i->i_name);
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}
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fputs("\t-1\n};\n", fp);
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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 void
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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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fputs("\n/* pseudo-devices */\n", fp);
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TAILQ_FOREACH(i, &allpseudo, i_next) {
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fprintf(fp, "void %sattach(int);\n",
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i->i_base->d_name);
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}
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fputs("\nstruct pdevinit pdevinit[] = {\n", fp);
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TAILQ_FOREACH(i, &allpseudo, i_next) {
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d = i->i_base;
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fprintf(fp, "\t{ %sattach, %d },\n",
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d->d_name, d->d_umax);
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}
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fputs("\t{ 0, 0 }\n};\n", fp);
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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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void
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emitname2blk(FILE *fp)
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{
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struct devbase *dev;
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fputs("\n/* device name to major block number */\n", fp);
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fprintf(fp, "struct devnametobdevmaj dev_name2blk[] = {\n");
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TAILQ_FOREACH(dev, &allbases, d_next) {
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if (dev->d_major == NODEVMAJOR)
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continue;
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fprintf(fp, "\t{ \"%s\", %d },\n",
|
|
dev->d_name, dev->d_major);
|
|
}
|
|
fprintf(fp, "\t{ NULL, 0 }\n};\n");
|
|
}
|