NetBSD/usr.sbin/config/mkioconf.c

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/* $NetBSD: mkioconf.c,v 1.50 1998/08/30 21:33:27 pk Exp $ */
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/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* 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, Lawrence Berkeley Laboratories.
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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.
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* 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.
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* 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 the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
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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
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* from: @(#)mkioconf.c 8.1 (Berkeley) 6/6/93
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*/
#include <sys/param.h>
#include <errno.h>
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
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#include "config.h"
/*
* Make ioconf.c.
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*/
static int cf_locnames_print __P((const char *, void *, void *));
static int cforder __P((const void *, const void *));
static int emitcfdata __P((FILE *));
static int emitcfdrivers __P((FILE *));
static int emitexterns __P((FILE *));
static int emithdr __P((FILE *));
static int emitloc __P((FILE *));
static int emitpseudo __P((FILE *));
static int emitpv __P((FILE *));
static int emitroots __P((FILE *));
static int emitvfslist __P((FILE *));
static int emitname2blk __P((FILE *));
#define SEP(pos, max) (((u_int)(pos) % (max)) == 0 ? "\n\t" : " ")
/*
* NEWLINE can only be used in the emitXXX functions.
* In most cases it can be subsumed into an fprintf.
*/
#define NEWLINE if (putc('\n', fp) < 0) return (1)
int
mkioconf()
{
FILE *fp;
int v;
qsort(packed, npacked, sizeof *packed, cforder);
if ((fp = fopen("ioconf.c", "w")) == NULL) {
(void)fprintf(stderr, "config: cannot write ioconf.c: %s\n",
strerror(errno));
return (1);
}
v = emithdr(fp);
if (v != 0 || emitcfdrivers(fp) || emitexterns(fp) || emitloc(fp) ||
emitpv(fp) || emitcfdata(fp) || emitroots(fp) || emitpseudo(fp) ||
emitvfslist(fp) || emitname2blk(fp)) {
if (v >= 0)
(void)fprintf(stderr,
"config: error writing ioconf.c: %s\n",
strerror(errno));
(void)fclose(fp);
/* (void)unlink("ioconf.c"); */
return (1);
}
(void)fclose(fp);
return (0);
}
static int
cforder(a, b)
const void *a, *b;
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{
int n1, n2;
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n1 = (*(struct devi **)a)->i_cfindex;
n2 = (*(struct devi **)b)->i_cfindex;
return (n1 - n2);
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}
static int
emithdr(ofp)
FILE *ofp;
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{
FILE *ifp;
int n;
char ifn[200], buf[BUFSIZ];
if (fprintf(ofp, "\
/*\n\
* MACHINE GENERATED: DO NOT EDIT\n\
*\n\
* ioconf.c, from \"%s\"\n\
*/\n\n", conffile) < 0)
return (1);
(void)sprintf(ifn, "ioconf.incl.%s", machine);
if ((ifp = fopen(ifn, "r")) != NULL) {
while ((n = fread(buf, 1, sizeof(buf), ifp)) > 0)
if (fwrite(buf, 1, n, ofp) != n)
return (1);
if (ferror(ifp)) {
(void)fprintf(stderr, "config: error reading %s: %s\n",
ifn, strerror(errno));
(void)fclose(ifp);
return (-1);
}
(void)fclose(ifp);
} else {
if (fputs("\
#include <sys/param.h>\n\
#include <sys/conf.h>\n\
#include <sys/device.h>\n\
#include <sys/mount.h>\n", ofp) < 0)
return (1);
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}
return (0);
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}
static int
emitcfdrivers(fp)
FILE *fp;
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{
struct devbase *d;
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NEWLINE;
for (d = allbases; d != NULL; d = d->d_next) {
if (!devbase_has_instances(d, WILD))
continue;
if (fprintf(fp, "struct cfdriver %s_cd = {\n",
d->d_name) < 0)
return (1);
if (fprintf(fp, "\tNULL, \"%s\", %s\n",
d->d_name, d->d_classattr != NULL ?
d->d_classattr->a_devclass : "DV_DULL") < 0)
return (1);
if (fprintf(fp, "};\n\n") < 0)
return (1);
}
return (0);
}
static int
emitexterns(fp)
FILE *fp;
{
struct deva *da;
NEWLINE;
for (da = alldevas; da != NULL; da = da->d_next) {
if (!deva_has_instances(da, WILD))
continue;
if (fprintf(fp, "extern struct cfattach %s_ca;\n",
da->d_name) < 0)
return (1);
}
NEWLINE;
return (0);
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}
/*
* Emit an initialized array of character strings describing this
* attribute's locators.
*/
static int
cf_locnames_print(name, value, arg)
const char *name;
void *value;
void *arg;
{
struct attr *a;
struct nvlist *nv;
FILE *fp = arg;
a = value;
if (a->a_locs) {
if (fprintf(fp, "const char *%scf_locnames[] = { ", name) < 0)
return (1);
for (nv = a->a_locs; nv; nv = nv->nv_next) {
if (fprintf(fp, "\"%s\", ", nv->nv_name) < 0)
return (1);
}
if (fprintf(fp, "NULL};\n") < 0)
return (1);
}
return 0;
}
static int
emitloc(fp)
FILE *fp;
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{
int i;
if (fprintf(fp, "\n/* locators */\n\
static int loc[%d] = {", locators.used) < 0)
return (1);
for (i = 0; i < locators.used; i++)
if (fprintf(fp, "%s%s,", SEP(i, 8), locators.vec[i]) < 0)
return (1);
if (fprintf(fp,
"\n};\n\nconst char *nullcf_locnames[] = {NULL};\n") < 0)
return (1);
return ht_enumerate(attrtab, cf_locnames_print, fp);
}
/*
* Emit global parents-vector.
*/
static int
emitpv(fp)
FILE *fp;
{
int i;
if (fprintf(fp, "\n/* parent vectors */\n\
static short pv[%d] = {", parents.used) < 0)
return (1);
for (i = 0; i < parents.used; i++)
if (fprintf(fp, "%s%d,", SEP(i, 16), parents.vec[i]) < 0)
return (1);
return (fprintf(fp, "\n};\n") < 0);
}
/*
* Emit the cfdata array.
*/
static int
emitcfdata(fp)
FILE *fp;
{
struct devi **p, *i, **par;
int unit, v;
const char *state, *basename, *attachment;
struct nvlist *nv;
struct attr *a;
char *loc;
char locbuf[20];
if (fprintf(fp, "\n\
#define NORM FSTATE_NOTFOUND\n\
#define STAR FSTATE_STAR\n\
\n\
struct cfdata cfdata[] = {\n\
/* attachment driver unit state loc flags parents\n\
locnames */\n") < 0)
return (1);
for (p = packed; (i = *p) != NULL; p++) {
/* the description */
if (fprintf(fp, "/*%3d: %s at ", i->i_cfindex, i->i_name) < 0)
return (1);
par = i->i_parents;
for (v = 0; v < i->i_pvlen; v++)
if (fprintf(fp, "%s%s", v == 0 ? "" : "|",
i->i_parents[v]->i_name) < 0)
return (1);
if (v == 0 && fputs("root", fp) < 0)
return (1);
a = i->i_atattr;
for (nv = a->a_locs, v = 0; nv != NULL; nv = nv->nv_next, v++)
if (fprintf(fp, " %s %s",
nv->nv_name, i->i_locs[v]) < 0)
return (1);
if (fputs(" */\n", fp) < 0)
return (-1);
/* then the actual defining line */
basename = i->i_base->d_name;
attachment = i->i_atdeva->d_name;
if (i->i_unit == STAR) {
unit = i->i_base->d_umax;
state = "STAR";
} else {
unit = i->i_unit;
state = "NORM";
}
if (i->i_locoff >= 0) {
(void)sprintf(locbuf, "loc+%3d", i->i_locoff);
loc = locbuf;
} else
loc = "loc";
if (fprintf(fp, "\
{&%s_ca,%s&%s_cd,%s%2d, %s, %7s, %#6x, pv+%2d,\n\
%scf_locnames},\n",
attachment, strlen(attachment) < 6 ? "\t\t" : "\t",
basename, strlen(basename) < 3 ? "\t\t" : "\t", unit,
state, loc, i->i_cfflags, i->i_pvoff,
a->a_locs ? a->a_name : "null") < 0)
return (1);
}
return (fputs(" {0}\n};\n", fp) < 0);
}
/*
* Emit the table of potential roots.
*/
static int
emitroots(fp)
FILE *fp;
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{
struct devi **p, *i;
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if (fputs("\nshort cfroots[] = {\n", fp) < 0)
return (1);
for (p = packed; (i = *p) != NULL; p++) {
if (i->i_at != NULL)
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continue;
if (i->i_unit != 0 &&
(i->i_unit != STAR || i->i_base->d_umax != 0))
(void)fprintf(stderr,
"config: warning: `%s at root' is not unit 0\n",
i->i_name);
if (fprintf(fp, "\t%2d /* %s */,\n",
i->i_cfindex, i->i_name) < 0)
return (1);
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}
return (fputs("\t-1\n};\n", fp) < 0);
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}
/*
* Emit pseudo-device initialization.
*/
static int
emitpseudo(fp)
FILE *fp;
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{
struct devi *i;
struct devbase *d;
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if (fputs("\n/* pseudo-devices */\n", fp) < 0)
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return (1);
for (i = allpseudo; i != NULL; i = i->i_next)
if (fprintf(fp, "extern void %sattach __P((int));\n",
i->i_base->d_name) < 0)
return (1);
if (fputs("\nstruct pdevinit pdevinit[] = {\n", fp) < 0)
return (1);
for (i = allpseudo; i != NULL; i = i->i_next) {
d = i->i_base;
if (fprintf(fp, "\t{ %sattach, %d },\n",
d->d_name, d->d_umax) < 0)
return (1);
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}
return (fputs("\t{ 0, 0 }\n};\n", fp) < 0);
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}
/*
* Emit the initial VFS list.
*/
static int
emitvfslist(fp)
FILE *fp;
{
struct nvlist *nv;
if (fputs("\n/* file systems */\n", fp) < 0)
return (1);
/*
* Walk the list twice, once to emit the externs,
* and again to actually emit the vfs_list_initial[]
* array.
*/
for (nv = fsoptions; nv != NULL; nv = nv->nv_next) {
if (fprintf(fp, "extern struct vfsops %s_vfsops;\n",
nv->nv_str) < 0)
return (1);
}
if (fputs("\nstruct vfsops *vfs_list_initial[] = {\n", fp) < 0)
return (1);
for (nv = fsoptions; nv != NULL; nv = nv->nv_next) {
if (fprintf(fp, "\t&%s_vfsops,\n", nv->nv_str) < 0)
return (1);
}
if (fputs("\tNULL,\n};\n", fp) < 0)
return (1);
return (0);
}
/*
* Emit name to major block number table.
*/
int
emitname2blk(fp)
FILE *fp;
{
struct devbase *dev;
if (fputs("\n/* device name to major block number */\n", fp) < 0)
return (1);
if (fprintf(fp, "struct devnametobdevmaj dev_name2blk[] = {\n") < 0)
return (1);
for (dev = allbases; dev != NULL; dev = dev->d_next) {
if (dev->d_major == NODEV)
continue;
if (fprintf(fp, "\t{ \"%s\", %d },\n",
dev->d_name, dev->d_major) < 0)
return (1);
}
if (fprintf(fp, "\t{ NULL, 0 }\n};\n") < 0)
return (1);
return (0);
}