OpenBSD-4.6/usr.sbin/config/mkioconf.c
/* $OpenBSD: mkioconf.c,v 1.28 2008/03/24 21:35:03 maja Exp $ */
/* $NetBSD: mkioconf.c,v 1.41 1996/11/11 14:18:49 mycroft 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
*/
#include <sys/param.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "config.h"
/*
* Make ioconf.c.
*/
static int cforder(const void *, const void *);
static int emitcfdata(FILE *);
static int emitexterns(FILE *);
static int emithdr(FILE *);
static int emitloc(FILE *);
static int emitlocnames(FILE *);
static int emitpseudo(FILE *);
static int emitpv(FILE *);
static int emitroots(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(void)
{
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 || emitexterns(fp) || emitloc(fp) ||
emitlocnames(fp) || emitpv(fp) || emitcfdata(fp) ||
emitroots(fp) || emitpseudo(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(const void *a, const void *b)
{
int n1, n2;
n1 = (*(struct devi **)a)->i_cfindex;
n2 = (*(struct devi **)b)->i_cfindex;
return (n1 - n2);
}
static int
emithdr(FILE *ofp)
{
FILE *ifp;
size_t 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)snprintf(ifn, sizeof 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/device.h>\n", ofp) < 0)
return (1);
}
return (0);
}
static int
emitexterns(FILE *fp)
{
struct devbase *d;
struct deva *da;
NEWLINE;
for (d = allbases; d != NULL; d = d->d_next) {
if (!devbase_has_instances(d, WILD))
continue;
if (fprintf(fp, "extern struct cfdriver %s_cd;\n",
d->d_name) < 0)
return (1);
}
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);
}
static int
emitloc(FILE *fp)
{
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") < 0)
return(1);
return (fprintf(fp, "\n#ifndef MAXEXTRALOC\n\
#define MAXEXTRALOC 32\n\
#endif\n\
int extraloc[MAXEXTRALOC] = { -1 };\n\
int nextraloc = MAXEXTRALOC;\n\
int uextraloc = 0;\n") < 0);
}
static int nlocnames, maxlocnames = 8;
static char **locnames;
short
addlocname(const char *name)
{
int i;
if (locnames == NULL || nlocnames+1 > maxlocnames) {
maxlocnames *= 4;
locnames = (char **)erealloc(locnames, maxlocnames * sizeof(char *));
}
for (i = 0; i < nlocnames; i++)
if (strcmp(name, locnames[i]) == 0)
return (i);
/*printf("adding %s at %d\n", name, nlocnames);*/
locnames[nlocnames++] = (char *)name;
return (nlocnames - 1);
}
static int nlocnami, maxlocnami = 8;
static short *locnami;
void
addlocnami(short index)
{
if (locnami == NULL || nlocnami+1 > maxlocnami) {
maxlocnami *= 4;
locnami = (short *)erealloc(locnami, maxlocnami * sizeof(short));
}
locnami[nlocnami++] = index;
}
/*
* Emit locator names
* XXX the locnamp[] table is not compressed like it should be!
*/
static int
emitlocnames(FILE *fp)
{
struct devi **p, *i;
struct nvlist *nv;
struct attr *a;
int added, start;
int v, j, x;
#if 1
addlocnami(-1);
for (p = packed; (i = *p) != NULL; p++) {
/*printf("child %s\n", i->i_name);*/
/* initialize all uninitialized parents */
for (x = 0; x < i->i_pvlen; x++) {
if (i->i_parents[x]->i_plocnami)
continue;
start = nlocnami;
/* add all the names */
a = i->i_atattr;
nv = a->a_locs;
added = 0;
for (nv = a->a_locs, v = 0; nv != NULL;
nv = nv->nv_next, v++) {
addlocnami(addlocname(nv->nv_name));
added = 1;
}
/* terminate list of names */
if (added)
addlocnami(-1);
else
start--;
/*printf("bus %s starts at %d\n", i->i_parents[x]->i_name,
start);*/
i->i_parents[x]->i_plocnami = start;
}
}
for (p = packed; (i = *p) != NULL; p++)
if (i->i_pvlen)
i->i_locnami = i->i_parents[0]->i_plocnami;
#else
addlocnami(-1);
for (p = packed; (i = *p) != NULL; p++) {
i->i_locnami = nlocnami;
/* add all the names */
a = i->i_atattr;
nv = a->a_locs;
for (nv = a->a_locs, v = 0; nv != NULL; nv = nv->nv_next, v++)
addlocnami(addlocname(nv->nv_name));
/* terminate list of names */
addlocnami(-1);
}
#endif
if (fprintf(fp, "\nchar *locnames[] = {\n") < 0)
return (1);
for (j = 0; j < nlocnames; j++)
if (fprintf(fp, "\t\"%s\",\n", locnames[j]) < 0)
return (1);
if (fprintf(fp, "};\n\n") < 0)
return (1);
if (fprintf(fp,
"/* each entry is an index into locnames[]; -1 terminates */\n") < 0)
return (1);
if (fprintf(fp, "short locnamp[] = {") < 0)
return (1);
for (j = 0; j < nlocnami; j++)
if (fprintf(fp, "%s%d,", SEP(j, 8), locnami[j]) < 0)
return (1);
return (fprintf(fp, "\n};\n") < 0);
}
/*
* Emit global parents-vector.
*/
static int
emitpv(FILE *fp)
{
int i;
if (fprintf(fp, "\n/* size of parent vectors */\n\
int pv_size = %d;\n", parents.used) < 0)
return (1);
if (fprintf(fp, "\n/* parent vectors */\n\
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(FILE *fp)
{
struct devi **p, *i;
int unit, v;
const char *vs, *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\
#define DNRM FSTATE_DNOTFOUND\n\
#define DSTR FSTATE_DSTAR\n\
\n\
struct cfdata cfdata[] = {\n\
/* attachment driver unit state loc flags parents nm ivstubs starunit1 */\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);
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;
nv = a->a_locs;
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;
if (i->i_disable) {
state = "DSTR";
} else {
state = "STAR";
}
} else {
unit = i->i_unit;
if (i->i_disable) {
state = "DNRM";
} else {
state = "NORM";
}
}
vs = "";
v = 0;
if (i->i_locoff >= 0) {
(void)snprintf(locbuf, sizeof locbuf, "loc+%3d",
i->i_locoff);
loc = locbuf;
} else
loc = "loc";
if (fprintf(fp, "\
{&%s_ca,%s&%s_cd,%s%2d, %s, %7s, %#4x, pv+%2d, %d, %s%d, %4d},\n",
attachment, strlen(attachment) < 6 ? "\t\t" : "\t",
basename, strlen(basename) < 3 ? "\t\t" : "\t", unit,
state, loc, i->i_cfflags, i->i_pvoff, i->i_locnami,
vs, v, unit) < 0)
return (1);
}
if (fprintf(fp, " {0},\n {0},\n {0},\n {0},\n") < 0)
return (1);
if (fprintf(fp, " {0},\n {0},\n {0},\n {0},\n") < 0)
return (1);
return (fputs(" {(struct cfattach *)-1}\n};\n", fp) < 0);
}
/*
* Emit the table of potential roots.
*/
static int
emitroots(FILE *fp)
{
struct devi **p, *i;
int cnt = 0;
if (fputs("\nshort cfroots[] = {\n", fp) < 0)
return (1);
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))
(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);
cnt++;
}
if (fputs("\t-1\n};\n", fp) < 0)
return (1);
return(fprintf(fp, "\nint cfroots_size = %d;\n", cnt+1) < 0);
}
/*
* Emit pseudo-device initialization.
*/
static int
emitpseudo(FILE *fp)
{
struct devi *i;
struct devbase *d;
int cnt = 0, umax;
if (fputs("\n/* pseudo-devices */\n", fp) < 0)
return (1);
for (i = allpseudo; i != NULL; i = i->i_next)
if (fprintf(fp, "extern void %sattach(int);\n",
i->i_base->d_name) < 0)
return (1);
if (fputs("\nchar *pdevnames[] = {\n", fp) < 0)
return (1);
for (i = allpseudo; i != NULL; i = i->i_next) {
d = i->i_base;
if (fprintf(fp, "\t\"%s\",\n", d->d_name) < 0)
return (1);
cnt++;
}
if (fputs("};\n", fp) < 0)
return (1);
if (fprintf(fp, "\nint pdevnames_size = %d;\n", cnt) < 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;
umax = d->d_umax;
if (i->i_disable)
umax*=-1;
if (fprintf(fp, "\t{ %sattach, %d },\n",
d->d_name, umax) < 0)
return (1);
}
return (fputs("\t{ NULL, 0 }\n};\n", fp) < 0);
}