NetBSD-5.0.2/usr.bin/config/mkioconf.c
/* $NetBSD: mkioconf.c,v 1.10 2007/12/12 00:03:33 lukem Exp $ */
/*
* 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.
*
* 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. 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.
*
* 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
*/
#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif
#include <sys/param.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "defs.h"
/*
* Make ioconf.c.
*/
static int cf_locators_print(const char *, void *, void *);
static int cforder(const void *, const void *);
static void emitcfdata(FILE *);
static void emitcfdrivers(FILE *);
static void emitexterns(FILE *);
static void emitcfattachinit(FILE *);
static void emithdr(FILE *);
static void emitloc(FILE *);
static void emitpseudo(FILE *);
static void emitparents(FILE *);
static void emitroots(FILE *);
static void emitname2blk(FILE *);
#define SEP(pos, max) (((u_int)(pos) % (max)) == 0 ? "\n\t" : " ")
#define ARRNAME(n, l) (strchr((n), ARRCHR) && strncmp((n), (l), strlen((l))) == 0)
/*
* NEWLINE can only be used in the emitXXX functions.
* In most cases it can be subsumed into an fprintf.
*/
#define NEWLINE putc('\n', fp)
int
mkioconf(void)
{
FILE *fp;
qsort(packed, npacked, sizeof *packed, cforder);
if ((fp = fopen("ioconf.c.tmp", "w")) == NULL) {
warn("cannot write ioconf.c");
return (1);
}
emithdr(fp);
emitcfdrivers(fp);
emitexterns(fp);
emitcfattachinit(fp);
emitloc(fp);
emitparents(fp);
emitcfdata(fp);
emitroots(fp);
emitpseudo(fp);
if (!do_devsw)
emitname2blk(fp);
fflush(fp);
if (ferror(fp)) {
warn("error writing ioconf.c");
(void)fclose(fp);
#if 0
(void)unlink("ioconf.c.tmp");
#endif
return (1);
}
(void)fclose(fp);
if (moveifchanged("ioconf.c.tmp", "ioconf.c") != 0) {
warn("error renaming ioconf.c");
return (1);
}
return (0);
}
static int
cforder(const void *a, const void *b)
{
int n1, n2;
n1 = (*(const struct devi **)a)->i_cfindex;
n2 = (*(const struct devi **)b)->i_cfindex;
return (n1 - n2);
}
static void
emithdr(FILE *ofp)
{
FILE *ifp;
int n;
char ifnbuf[200], buf[BUFSIZ];
char *ifn;
autogen_comment(ofp, "ioconf.c");
(void)snprintf(ifnbuf, sizeof(ifnbuf), "arch/%s/conf/ioconf.incl.%s",
machine, machine);
ifn = sourcepath(ifnbuf);
if ((ifp = fopen(ifn, "r")) != NULL) {
while ((n = fread(buf, 1, sizeof(buf), ifp)) > 0)
(void)fwrite(buf, 1, n, ofp);
if (ferror(ifp))
err(EXIT_FAILURE, "error reading %s", ifn);
(void)fclose(ifp);
} else {
fputs("#include <sys/param.h>\n"
"#include <sys/conf.h>\n"
"#include <sys/device.h>\n"
"#include <sys/mount.h>\n", ofp);
}
free(ifn);
}
/*
* Emit an initialized array of character strings describing this
* attribute's locators.
*/
static int
cf_locators_print(const char *name, void *value, void *arg)
{
struct attr *a;
struct nvlist *nv;
FILE *fp = arg;
a = value;
if (!a->a_iattr)
return (0);
if (a->a_locs) {
fprintf(fp,
"static const struct cfiattrdata %scf_iattrdata = {\n",
name);
fprintf(fp, "\t\"%s\", %d,\n\t{\n", name, a->a_loclen);
for (nv = a->a_locs; nv; nv = nv->nv_next)
fprintf(fp, "\t\t{\"%s\", \"%s\", %s},\n",
nv->nv_name,
(nv->nv_str ? nv->nv_str : "NULL"),
(nv->nv_str ? nv->nv_str : "0"));
fprintf(fp, "\t}\n};\n");
} else {
fprintf(fp,
"static const struct cfiattrdata %scf_iattrdata = {\n"
"\t\"%s\", 0, {\n\t\t{ NULL, NULL, 0 },\n\t}\n};\n",
name, name);
}
return 0;
}
static void
emitcfdrivers(FILE *fp)
{
struct devbase *d;
struct nvlist *nv;
struct attr *a;
int has_iattrs;
NEWLINE;
ht_enumerate(attrtab, cf_locators_print, fp);
NEWLINE;
TAILQ_FOREACH(d, &allbases, d_next) {
if (!devbase_has_instances(d, WILD))
continue;
has_iattrs = 0;
for (nv = d->d_attrs; nv != NULL; nv = nv->nv_next) {
a = nv->nv_ptr;
if (a->a_iattr == 0)
continue;
if (has_iattrs == 0)
fprintf(fp,
"static const struct cfiattrdata * const %s_attrs[] = { ",
d->d_name);
has_iattrs = 1;
fprintf(fp, "&%scf_iattrdata, ", a->a_name);
}
if (has_iattrs)
fprintf(fp, "NULL };\n");
fprintf(fp, "CFDRIVER_DECL(%s, %s, ", d->d_name, /* ) */
d->d_classattr != NULL ? d->d_classattr->a_devclass
: "DV_DULL");
if (has_iattrs)
fprintf(fp, "%s_attrs", d->d_name);
else
fprintf(fp, "NULL");
fprintf(fp, /* ( */ ");\n\n");
}
NEWLINE;
fprintf(fp, "struct cfdriver * const cfdriver_list_initial[] = {\n");
TAILQ_FOREACH(d, &allbases, d_next) {
if (!devbase_has_instances(d, WILD))
continue;
fprintf(fp, "\t&%s_cd,\n", d->d_name);
}
fprintf(fp, "\tNULL\n};\n");
}
static void
emitexterns(FILE *fp)
{
struct deva *da;
NEWLINE;
TAILQ_FOREACH(da, &alldevas, d_next) {
if (!deva_has_instances(da, WILD))
continue;
fprintf(fp, "extern struct cfattach %s_ca;\n",
da->d_name);
}
}
static void
emitcfattachinit(FILE *fp)
{
struct devbase *d;
struct deva *da;
NEWLINE;
TAILQ_FOREACH(d, &allbases, d_next) {
if (!devbase_has_instances(d, WILD))
continue;
if (d->d_ahead == NULL)
continue;
fprintf(fp,
"static struct cfattach * const %s_cfattachinit[] = {\n\t",
d->d_name);
for (da = d->d_ahead; da != NULL; da = da->d_bsame) {
if (!deva_has_instances(da, WILD))
continue;
fprintf(fp, "&%s_ca, ", da->d_name);
}
fprintf(fp, "NULL\n};\n");
}
NEWLINE;
fprintf(fp, "const struct cfattachinit cfattachinit[] = {\n");
TAILQ_FOREACH(d, &allbases, d_next) {
if (!devbase_has_instances(d, WILD))
continue;
if (d->d_ahead == NULL)
continue;
fprintf(fp, "\t{ \"%s\", %s_cfattachinit },\n",
d->d_name, d->d_name);
}
fprintf(fp, "\t{ NULL, NULL }\n};\n");
}
static void
emitloc(FILE *fp)
{
int i;
if (locators.used != 0) {
fprintf(fp, "\n/* locators */\n"
"static int loc[%d] = {", locators.used);
for (i = 0; i < locators.used; i++)
fprintf(fp, "%s%s,", SEP(i, 8), locators.vec[i]);
fprintf(fp, "\n};\n");
} else if (*packed != NULL) {
/* We need to have *something*. */
fprintf(fp, "\n/* locators */\n"
"static int loc[1] = { -1 };\n");
}
}
/*
* Emit static parent data.
*/
static void
emitparents(FILE *fp)
{
struct pspec *p;
NEWLINE;
TAILQ_FOREACH(p, &allpspecs, p_list) {
if (p->p_devs == NULL || p->p_active != DEVI_ACTIVE)
continue;
fprintf(fp,
"static const struct cfparent pspec%d = {\n", p->p_inst);
fprintf(fp, "\t\"%s\", ", p->p_iattr->a_name);
if (p->p_atdev != NULL) {
fprintf(fp, "\"%s\", ", p->p_atdev->d_name);
if (p->p_atunit == WILD)
fprintf(fp, "DVUNIT_ANY");
else
fprintf(fp, "%d", p->p_atunit);
} else
fprintf(fp, "NULL, 0");
fprintf(fp, "\n};\n");
}
}
/*
* Emit the cfdata array.
*/
static void
emitcfdata(FILE *fp)
{
struct devi **p, *i;
struct pspec *ps;
int unit, v;
const char *state, *basename, *attachment;
struct nvlist *nv;
struct attr *a;
char *loc;
char locbuf[20];
const char *lastname = "";
fprintf(fp, "\n"
"#define NORM FSTATE_NOTFOUND\n"
"#define STAR FSTATE_STAR\n"
"\n"
"struct cfdata cfdata[] = {\n"
" /* driver attachment unit state "
"loc flags pspec */\n");
for (p = packed; (i = *p) != NULL; p++) {
/* the description */
fprintf(fp, "/*%3d: %s at ", i->i_cfindex, i->i_name);
if ((ps = i->i_pspec) != NULL) {
if (ps->p_atdev != NULL &&
ps->p_atunit != WILD) {
fprintf(fp, "%s%d", ps->p_atdev->d_name,
ps->p_atunit);
} else if (ps->p_atdev != NULL) {
fprintf(fp, "%s?", ps->p_atdev->d_name);
} else {
fprintf(fp, "%s?", ps->p_iattr->a_name);
}
a = ps->p_iattr;
for (nv = a->a_locs, v = 0; nv != NULL;
nv = nv->nv_next, v++) {
if (ARRNAME(nv->nv_name, lastname)) {
fprintf(fp, " %s %s",
nv->nv_name, i->i_locs[v]);
} else {
fprintf(fp, " %s %s",
nv->nv_name,
i->i_locs[v]);
lastname = nv->nv_name;
}
}
} else {
a = NULL;
fputs("root", fp);
}
fputs(" */\n", fp);
/* 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)snprintf(locbuf, sizeof(locbuf), "loc+%3d",
i->i_locoff);
loc = locbuf;
} else
loc = "loc";
fprintf(fp, " {\"%s\",%s\"%s\",%s%2d, %s, %7s, %#6x, ",
basename, strlen(basename) < 8 ? "\t\t"
: "\t",
attachment, strlen(attachment) < 5 ? "\t\t"
: "\t",
unit, state, loc, i->i_cfflags);
if (ps != NULL)
fprintf(fp, "&pspec%d},\n", ps->p_inst);
else
fputs("NULL},\n", fp);
}
fprintf(fp, " {%s,%s%s,%s%2d, %s, %7s, %#6x, %s}\n};\n",
"NULL", "\t\t", "NULL", "\t\t", 0, "0", "NULL", 0, "NULL");
}
/*
* Emit the table of potential roots.
*/
static void
emitroots(FILE *fp)
{
struct devi **p, *i;
fputs("\nconst short cfroots[] = {\n", fp);
for (p = packed; (i = *p) != NULL; p++) {
if (i->i_at != NULL)
continue;
if (i->i_unit != 0 &&
(i->i_unit != STAR || i->i_base->d_umax != 0))
warnx("warning: `%s at root' is not unit 0", i->i_name);
fprintf(fp, "\t%2d /* %s */,\n",
i->i_cfindex, i->i_name);
}
fputs("\t-1\n};\n", fp);
}
/*
* Emit pseudo-device initialization.
*/
static void
emitpseudo(FILE *fp)
{
struct devi *i;
struct devbase *d;
fputs("\n/* pseudo-devices */\n", fp);
TAILQ_FOREACH(i, &allpseudo, i_next) {
fprintf(fp, "void %sattach(int);\n",
i->i_base->d_name);
}
fputs("\nstruct pdevinit pdevinit[] = {\n", fp);
TAILQ_FOREACH(i, &allpseudo, i_next) {
d = i->i_base;
fprintf(fp, "\t{ %sattach, %d },\n",
d->d_name, d->d_umax);
}
fputs("\t{ 0, 0 }\n};\n", fp);
}
/*
* Emit name to major block number table.
*/
void
emitname2blk(FILE *fp)
{
struct devbase *dev;
fputs("\n/* device name to major block number */\n", fp);
fprintf(fp, "struct devnametobdevmaj dev_name2blk[] = {\n");
TAILQ_FOREACH(dev, &allbases, d_next) {
if (dev->d_major == NODEV)
continue;
fprintf(fp, "\t{ \"%s\", %d },\n",
dev->d_name, dev->d_major);
}
fprintf(fp, "\t{ NULL, 0 }\n};\n");
}