[unix-history] / usr / src / usr.sbin / config.new / mkioconf.c

/* 
 * 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.
 *
 * %sccs.include.redist.c%
 *
 *	@(#)mkioconf.c	8.1 (Berkeley) %G%
 */

#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 __P((const void *, const void *));
static int emitcfdata __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 emitvec __P((FILE *));
static char *vecname __P((char *, const char *, int));

static const char *s_i386;

#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()
{
	register FILE *fp;
	register char *fname;
	int v;

	s_i386 = intern("i386");

	fname = path("ioconf.c");
	qsort(packed, npacked, sizeof *packed, cforder);
	if ((fp = fopen(fname, "w")) == NULL) {
		(void)fprintf(stderr, "config: cannot write %s: %s\n",
		    fname, strerror(errno));
		return (1);
	}
	v = emithdr(fp);
	if (v != 0 || emitvec(fp) || emitexterns(fp) || emitloc(fp) ||
	    emitpv(fp) || emitcfdata(fp) || emitroots(fp) || emitpseudo(fp)) {
		if (v >= 0)
			(void)fprintf(stderr,
			    "config: error writing %s: %s\n",
			    fname, strerror(errno));
		(void)fclose(fp);
		/* (void)unlink(fname); */
		free(fname);
		return (1);
	}
	(void)fclose(fp);
	free(fname);
	return (0);
}

static int
cforder(a, b)
	const void *a, *b;
{
	register int n1, n2;

	n1 = (*(struct devi **)a)->i_cfindex;
	n2 = (*(struct devi **)b)->i_cfindex;
	return (n1 - n2);
}

static int
emithdr(ofp)
	register FILE *ofp;
{
	register FILE *ifp;
	register 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/device.h>\n", ofp) < 0)
			return (1);
	}
	return (0);
}

static int
emitexterns(fp)
	register FILE *fp;
{
	register struct devbase *d;

	NEWLINE;
	for (d = allbases; d != NULL; d = d->d_next) {
		if (d->d_ihead == NULL)
			continue;
		if (fprintf(fp, "extern struct cfdriver %scd;\n",
			    d->d_name) < 0)
			return (1);
	}
	NEWLINE;
	return (0);
}

static int
emitloc(fp)
	register FILE *fp;
{
	register 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);
	return (fprintf(fp, "\n};\n") < 0);
}

/*
 * Emit global parents-vector.
 */
static int
emitpv(fp)
	register FILE *fp;
{
	register 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)
	register FILE *fp;
{
	register struct devi **p, *i, **par;
	register int unit, v;
	register const char *vs, *state, *basename;
	register struct nvlist *nv;
	register 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\
\t/* driver     unit state    loc     flags parents ivstubs */\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;
		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;
		if (i->i_unit == STAR) {
			unit = i->i_base->d_umax;
			state = "STAR";
		} else {
			unit = i->i_unit;
			state = "NORM";
		}
		if (i->i_ivoff < 0) {
			vs = "";
			v = 0;
		} else {
			vs = "vec+";
			v = i->i_ivoff;
		}
		if (i->i_locoff >= 0) {
			(void)sprintf(locbuf, "loc+%3d", i->i_locoff);
			loc = locbuf;
		} else
			loc = "loc";
		if (fprintf(fp, "\
\t{&%scd,%s%2d, %s, %7s, %#6x, pv+%2d, %s%d},\n",
		    basename, strlen(basename) < 3 ? "\t\t" : "\t", unit,
		    state, loc, i->i_cfflags, i->i_pvoff, vs, v) < 0)
			return (1);
	}
	return (fputs("\t{0}\n};\n", fp) < 0);
}

/*
 * Emit the table of potential roots.
 */
static int
emitroots(fp)
	register FILE *fp;
{
	register struct devi **p, *i;

	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);
	}
	return (fputs("\t-1\n};\n", fp) < 0);
}

/*
 * Emit pseudo-device initialization.
 */
static int
emitpseudo(fp)
	register FILE *fp;
{
	register struct devi *i;
	register struct devbase *d;

	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 __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);
	}
	return (fputs("\t{ 0, 0 }\n};\n", fp) < 0);
}

/*
 * Emit interrupt vector declarations, and calculate offsets.
 */
static int
emitvec(fp)
	register FILE *fp;
{
	register struct nvlist *head, *nv;
	register struct devi **p, *i;
	register int j, nvec, unit;
	char buf[200];

	nvec = 0;
	for (p = packed; (i = *p) != NULL; p++) {
		if ((head = i->i_base->d_vectors) == NULL)
			continue;
		if ((unit = i->i_unit) == STAR)
			panic("emitvec unit==STAR");
		if (nvec == 0)
			NEWLINE;
		for (j = 0, nv = head; nv != NULL; j++, nv = nv->nv_next)
			if (fprintf(fp,
			    "/* IVEC %s %d */ extern void %s();\n",
			    nv->nv_name, unit,
			    vecname(buf, nv->nv_name, unit)) < 0)
				return (1);
		nvec += j + 1;
	}
	if (nvec == 0)
		return (0);
	if (fprintf(fp, "\nstatic void (*vec[%d]) __P((void)) = {", nvec) < 0)
		return (1);
	nvec = 0;
	for (p = packed; (i = *p) != NULL; p++) {
		if ((head = i->i_base->d_vectors) == NULL)
			continue;
		i->i_ivoff = nvec;
		unit = i->i_unit;
		for (nv = head; nv != NULL; nv = nv->nv_next)
			if (fprintf(fp, "%s%s,",
			    SEP(nvec++, 4),
			    vecname(buf, nv->nv_name, unit)) < 0)
				return (1);
		if (fprintf(fp, "%s0,", SEP(nvec++, 4)) < 0)
			return (1);
	}
	return (fputs("\n};\n", fp) < 0);
}

static char *
vecname(buf, name, unit)
	char *buf;
	const char *name;
	int unit;
{

	/* @#%* 386 uses a different name format */
	if (machine == s_i386) {
		(void)sprintf(buf, "V%s%d", name, unit);
		return (buf);
	}
	(void)sprintf(buf, "X%s%d", name, unit);
	return (buf);
}
Commit	Line	Data
6b5eacd2	1	/*
62a2aae7 KB	2	* Copyright (c) 1992, 1993
62a2aae7 KB	3	* The Regents of the University of California. All rights reserved.
6b5eacd2 CT	4	*
	5	* This software was developed by the Computer Systems Engineering group
	6	* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
	7	* contributed to Berkeley.
	8	*
	9	* All advertising materials mentioning features or use of this software
	10	* must display the following acknowledgement:
	11	* This product includes software developed by the University of
	12	* California, Lawrence Berkeley Laboratories.
	13	*
	14	* %sccs.include.redist.c%
	15	*
62a2aae7	16	* @(#)mkioconf.c 8.1 (Berkeley) %G%
6b5eacd2 CT	17	*/
	18
	19	#include <sys/param.h>
	20	#include <errno.h>
	21	#include <stdio.h>
	22	#include <stdlib.h>
	23	#include <string.h>
	24	#include "config.h"
	25
	26	/*
	27	* Make ioconf.c.
	28	*/
	29	static int cforder __P((const void , const void ));
	30	static int emitcfdata __P((FILE *));
	31	static int emitexterns __P((FILE *));
	32	static int emithdr __P((FILE *));
	33	static int emitloc __P((FILE *));
	34	static int emitpseudo __P((FILE *));
	35	static int emitpv __P((FILE *));
	36	static int emitroots __P((FILE *));
	37	static int emitvec __P((FILE *));
	38	static char vecname __P((char , const char *, int));
	39
	40	static const char *s_i386;
	41
	42	#define SEP(pos, max) (((u_int)(pos) % (max)) == 0 ? "\n\t" : " ")
	43
	44	/*
	45	* NEWLINE can only be used in the emitXXX functions.
	46	* In most cases it can be subsumed into an fprintf.
	47	*/
	48	#define NEWLINE if (putc('\n', fp) < 0) return (1)
	49
	50	int
	51	mkioconf()
	52	{
	53	register FILE *fp;
	54	register char *fname;
	55	int v;
	56
	57	s_i386 = intern("i386");
	58
	59	fname = path("ioconf.c");
	60	qsort(packed, npacked, sizeof *packed, cforder);
	61	if ((fp = fopen(fname, "w")) == NULL) {
	62	(void)fprintf(stderr, "config: cannot write %s: %s\n",
	63	fname, strerror(errno));
	64	return (1);
	65	}
	66	v = emithdr(fp);
	67	if (v != 0 \|\| emitvec(fp) \|\| emitexterns(fp) \|\| emitloc(fp) \|\|
	68	emitpv(fp) \|\| emitcfdata(fp) \|\| emitroots(fp) \|\| emitpseudo(fp)) {
	69	if (v >= 0)
	70	(void)fprintf(stderr,
	71	"config: error writing %s: %s\n",
	72	fname, strerror(errno));
	73	(void)fclose(fp);
	74	/* (void)unlink(fname); */
	75	free(fname);
	76	return (1);
	77	}
	78	(void)fclose(fp);
	79	free(fname);
	80	return (0);
81	}
82
83	static int
84	cforder(a, b)
85	const void a, b;
86	{
87	register int n1, n2;
88
89	n1 = ((struct devi *)a)->i_cfindex;
90	n2 = ((struct devi *)b)->i_cfindex;
91	return (n1 - n2);
92	}
93
94	static int
95	emithdr(ofp)
96	register FILE *ofp;
97	{
98	register FILE *ifp;
99	register int n;
100	char ifn[200], buf[BUFSIZ];
101
102	if (fprintf(ofp, "\
103	/*\n\
104	* MACHINE GENERATED: DO NOT EDIT\n\
105	*\n\
106	* ioconf.c, from \"%s\"\n\
107	*/\n\n", conffile) < 0)
108	return (1);
109	(void)sprintf(ifn, "ioconf.incl.%s", machine);
110	if ((ifp = fopen(ifn, "r")) != NULL) {
111	while ((n = fread(buf, 1, sizeof(buf), ifp)) > 0)
112	if (fwrite(buf, 1, n, ofp) != n)
113	return (1);
114	if (ferror(ifp)) {
115	(void)fprintf(stderr, "config: error reading %s: %s\n",
116	ifn, strerror(errno));
117	(void)fclose(ifp);
118	return (-1);
119	}
120	(void)fclose(ifp);
121	} else {
122	if (fputs("\
123	#include <sys/param.h>\n\
124	#include <sys/device.h>\n", ofp) < 0)
125	return (1);
126	}
127	return (0);
128	}
129
130	static int
131	emitexterns(fp)
132	register FILE *fp;
133	{
134	register struct devbase *d;
135
136	NEWLINE;
137	for (d = allbases; d != NULL; d = d->d_next) {
138	if (d->d_ihead == NULL)
139	continue;
140	if (fprintf(fp, "extern struct cfdriver %scd;\n",
141	d->d_name) < 0)
142	return (1);
143	}
144	NEWLINE;
145	return (0);
146	}
147
148	static int
149	emitloc(fp)
150	register FILE *fp;
151	{
152	register int i;
153
154	if (fprintf(fp, "\n/* locators */\n\
155	static int loc[%d] = {", locators.used) < 0)
156	return (1);
157	for (i = 0; i < locators.used; i++)
158	if (fprintf(fp, "%s%s,", SEP(i, 8), locators.vec[i]) < 0)
159	return (1);
160	return (fprintf(fp, "\n};\n") < 0);
161	}
162
163	/*
164	* Emit global parents-vector.
165	*/
166	static int
167	emitpv(fp)
168	register FILE *fp;
169	{
170	register int i;
171
172	if (fprintf(fp, "\n/* parent vectors */\n\
173	static short pv[%d] = {", parents.used) < 0)
174	return (1);
175	for (i = 0; i < parents.used; i++)
176	if (fprintf(fp, "%s%d,", SEP(i, 16), parents.vec[i]) < 0)
177	return (1);
178	return (fprintf(fp, "\n};\n") < 0);
179	}
180
181	/*
182	* Emit the cfdata array.
183	*/
184	static int
185	emitcfdata(fp)
186	register FILE *fp;
187	{
188	register struct devi *p, i, **par;
189	register int unit, v;
190	register const char vs, state, *basename;
191	register struct nvlist *nv;
192	register struct attr *a;
193	char *loc;
194	char locbuf[20];
195
196	if (fprintf(fp, "\n\
197	#define NORM FSTATE_NOTFOUND\n\
198	#define STAR FSTATE_STAR\n\
199	\n\
200	struct cfdata cfdata[] = {\n\
201	\t/* driver unit state loc flags parents ivstubs */\n") < 0)
202	return (1);
203	for (p = packed; (i = *p) != NULL; p++) {
204	/* the description */
205	if (fprintf(fp, "/*%3d: %s at ", i->i_cfindex, i->i_name) < 0)
206	return (1);
207	par = i->i_parents;
208	for (v = 0; v < i->i_pvlen; v++)
209	if (fprintf(fp, "%s%s", v == 0 ? "" : "\|",
210	i->i_parents[v]->i_name) < 0)
211	return (1);
212	if (v == 0 && fputs("root", fp) < 0)
213	return (1);
214	a = i->i_atattr;
215	nv = a->a_locs;
216	for (nv = a->a_locs, v = 0; nv != NULL; nv = nv->nv_next, v++)
217	if (fprintf(fp, " %s %s",
218	nv->nv_name, i->i_locs[v]) < 0)
219	return (1);
220	if (fputs(" */\n", fp) < 0)
221	return (-1);
222
223	/* then the actual defining line */
224	basename = i->i_base->d_name;
225	if (i->i_unit == STAR) {
226	unit = i->i_base->d_umax;
227	state = "STAR";
228	} else {
229	unit = i->i_unit;
230	state = "NORM";
231	}
232	if (i->i_ivoff < 0) {
233	vs = "";
234	v = 0;
235	} else {
236	vs = "vec+";
237	v = i->i_ivoff;
238	}
239	if (i->i_locoff >= 0) {
240	(void)sprintf(locbuf, "loc+%3d", i->i_locoff);
241	loc = locbuf;
242	} else
243	loc = "loc";
244	if (fprintf(fp, "\
245	\t{&%scd,%s%2d, %s, %7s, %#6x, pv+%2d, %s%d},\n",
246	basename, strlen(basename) < 3 ? "\t\t" : "\t", unit,
247	state, loc, i->i_cfflags, i->i_pvoff, vs, v) < 0)
248	return (1);
249	}
9cf45c42	250	return (fputs("\t{0}\n};\n", fp) < 0);
6b5eacd2 CT	251	}
	252
	253	/*
	254	* Emit the table of potential roots.
	255	*/
	256	static int
	257	emitroots(fp)
	258	register FILE *fp;
	259	{
	260	register struct devi *p, i;
	261
	262	if (fputs("\nshort cfroots[] = {\n", fp) < 0)
	263	return (1);
	264	for (p = packed; (i = *p) != NULL; p++) {
	265	if (i->i_at != NULL)
	266	continue;
	267	if (i->i_unit != 0 &&
	268	(i->i_unit != STAR \|\| i->i_base->d_umax != 0))
	269	(void)fprintf(stderr,
	270	"config: warning: `%s at root' is not unit 0\n",
	271	i->i_name);
	272	if (fprintf(fp, "\t%2d /* %s */,\n",
	273	i->i_cfindex, i->i_name) < 0)
	274	return (1);
	275	}
	276	return (fputs("\t-1\n};\n", fp) < 0);
	277	}
	278
	279	/*
	280	* Emit pseudo-device initialization.
	281	*/
	282	static int
	283	emitpseudo(fp)
	284	register FILE *fp;
	285	{
	286	register struct devi *i;
	287	register struct devbase *d;
	288
19e0980e	289	if (fputs("\n/* pseudo-devices */\n", fp) < 0)
6b5eacd2 CT	290	return (1);
	291	for (i = allpseudo; i != NULL; i = i->i_next)
	292	if (fprintf(fp, "extern void %sattach __P((int));\n",
	293	i->i_base->d_name) < 0)
	294	return (1);
	295	if (fputs("\nstruct pdevinit pdevinit[] = {\n", fp) < 0)
	296	return (1);
	297	for (i = allpseudo; i != NULL; i = i->i_next) {
	298	d = i->i_base;
a6ea7586	299	if (fprintf(fp, "\t{ %sattach, %d },\n",
6b5eacd2 CT	300	d->d_name, d->d_umax) < 0)
	301	return (1);
	302	}
19e0980e	303	return (fputs("\t{ 0, 0 }\n};\n", fp) < 0);
6b5eacd2 CT	304	}
	305
	306	/*
	307	* Emit interrupt vector declarations, and calculate offsets.
	308	*/
	309	static int
	310	emitvec(fp)
	311	register FILE *fp;
	312	{
	313	register struct nvlist head, nv;
	314	register struct devi *p, i;
	315	register int j, nvec, unit;
	316	char buf[200];
	317
	318	nvec = 0;
	319	for (p = packed; (i = *p) != NULL; p++) {
	320	if ((head = i->i_base->d_vectors) == NULL)
	321	continue;
	322	if ((unit = i->i_unit) == STAR)
	323	panic("emitvec unit==STAR");
	324	if (nvec == 0)
	325	NEWLINE;
	326	for (j = 0, nv = head; nv != NULL; j++, nv = nv->nv_next)
	327	if (fprintf(fp,
	328	"/* IVEC %s %d */ extern void %s();\n",
	329	nv->nv_name, unit,
	330	vecname(buf, nv->nv_name, unit)) < 0)
	331	return (1);
	332	nvec += j + 1;
	333	}
	334	if (nvec == 0)
	335	return (0);
	336	if (fprintf(fp, "\nstatic void (*vec[%d]) __P((void)) = {", nvec) < 0)
	337	return (1);
	338	nvec = 0;
	339	for (p = packed; (i = *p) != NULL; p++) {
	340	if ((head = i->i_base->d_vectors) == NULL)
	341	continue;
	342	i->i_ivoff = nvec;
	343	unit = i->i_unit;
	344	for (nv = head; nv != NULL; nv = nv->nv_next)
	345	if (fprintf(fp, "%s%s,",
	346	SEP(nvec++, 4),
	347	vecname(buf, nv->nv_name, unit)) < 0)
	348	return (1);
	349	if (fprintf(fp, "%s0,", SEP(nvec++, 4)) < 0)
	350	return (1);
	351	}
	352	return (fputs("\n};\n", fp) < 0);
	353	}
	354
	355	static char *
	356	vecname(buf, name, unit)
	357	char *buf;
	358	const char *name;
	359	int unit;
	360	{
	361
	362	/* @#%* 386 uses a different name format */
	363	if (machine == s_i386) {
	364	(void)sprintf(buf, "V%s%d", name, unit);
	365	return (buf);
	366	}
	367	(void)sprintf(buf, "X%s%d", name, unit);
368	return (buf);
369	}