236 lines
6.4 KiB
C
236 lines
6.4 KiB
C
/* $NetBSD: mkdevsw.c,v 1.3 2002/09/06 13:59:09 junyoung Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2002 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by MAEKAWA Masahide (gehenna@NetBSD.org).
|
|
*
|
|
* 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. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#include "defs.h"
|
|
|
|
static int emitconv(FILE *);
|
|
static int emitdev(FILE *);
|
|
static int emitdevm(FILE *);
|
|
static int emitheader(FILE *);
|
|
|
|
int
|
|
mkdevsw(void)
|
|
{
|
|
FILE *fp;
|
|
|
|
if ((fp = fopen("devsw.c.tmp", "w")) == NULL) {
|
|
(void)fprintf(stderr, "config: cannot write devsw.c: %s\n",
|
|
strerror(errno));
|
|
return (1);
|
|
}
|
|
|
|
if (emitheader(fp) || emitdevm(fp) || emitconv(fp) || emitdev(fp)) {
|
|
(void)fprintf(stderr, "config: error writing devsw.c: %s\n",
|
|
strerror(errno));
|
|
(void)fclose(fp);
|
|
return (1);
|
|
}
|
|
|
|
(void)fclose(fp);
|
|
|
|
if (moveifchanged("devsw.c.tmp", "devsw.c") != 0) {
|
|
(void)fprintf(stderr, "config: error renaming devsw.c: %s\n",
|
|
strerror(errno));
|
|
return (1);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
emitheader(FILE *fp)
|
|
{
|
|
if (fprintf(fp, "/*\n * MACHINE GENERATED: DO NOT EDIT\n *\n"
|
|
" * devsw.c, from \"%s\"\n */\n\n", conffile) < 0) {
|
|
return (1);
|
|
}
|
|
|
|
if (fputs("#include <sys/param.h>\n"
|
|
"#include <sys/conf.h>\n"
|
|
"\n#define\tDEVSW_ARRAY_SIZE(x)\t"
|
|
"(sizeof((x))/sizeof((x)[0]))\n", fp) < 0) {
|
|
return (1);
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Emit device switch table for character/block device.
|
|
*/
|
|
static int
|
|
emitdevm(FILE *fp)
|
|
{
|
|
struct devm *dm;
|
|
char mstr[16];
|
|
int i;
|
|
|
|
if (fputs("\n/* device switch table for block device */\n", fp) < 0)
|
|
return (1);
|
|
|
|
for (i = 0 ; i <= maxbdevm ; i++) {
|
|
(void)snprintf(mstr, sizeof(mstr), "%d", i);
|
|
if ((dm = ht_lookup(bdevmtab, intern(mstr))) == NULL)
|
|
continue;
|
|
|
|
if (fprintf(fp, "extern const struct bdevsw %s_bdevsw;\n",
|
|
dm->dm_name) < 0)
|
|
return (1);
|
|
}
|
|
|
|
if (fputs("\nconst struct bdevsw *bdevsw0[] = {\n", fp) < 0)
|
|
return (1);
|
|
|
|
for (i = 0 ; i <= maxbdevm ; i++) {
|
|
(void)snprintf(mstr, sizeof(mstr), "%d", i);
|
|
if ((dm = ht_lookup(bdevmtab, intern(mstr))) == NULL) {
|
|
if (fprintf(fp, "\tNULL,\n") < 0)
|
|
return (1);
|
|
} else {
|
|
if (fprintf(fp, "\t&%s_bdevsw,\n", dm->dm_name) < 0)
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
if (fputs("};\n\nconst struct bdevsw **bdevsw = bdevsw0;\n", fp) < 0)
|
|
return (1);
|
|
|
|
if (fputs("const int sys_bdevsws = DEVSW_ARRAY_SIZE(bdevsw0);\n"
|
|
"int max_bdevsws = DEVSW_ARRAY_SIZE(bdevsw0);\n", fp) < 0)
|
|
return (1);
|
|
|
|
if (fputs("\n/* device switch table for character device */\n", fp) < 0)
|
|
return (1);
|
|
|
|
for (i = 0 ; i <= maxcdevm ; i++) {
|
|
(void)snprintf(mstr, sizeof(mstr), "%d", i);
|
|
if ((dm = ht_lookup(cdevmtab, intern(mstr))) == NULL)
|
|
continue;
|
|
|
|
if (fprintf(fp, "extern const struct cdevsw %s_cdevsw;\n",
|
|
dm->dm_name) < 0)
|
|
return (1);
|
|
}
|
|
|
|
if (fputs("\nconst struct cdevsw *cdevsw0[] = {\n", fp) < 0)
|
|
return (1);
|
|
|
|
for (i = 0 ; i <= maxcdevm ; i++) {
|
|
(void)snprintf(mstr, sizeof(mstr), "%d", i);
|
|
if ((dm = ht_lookup(cdevmtab, intern(mstr))) == NULL) {
|
|
if (fprintf(fp, "\tNULL,\n") < 0)
|
|
return (1);
|
|
} else {
|
|
if (fprintf(fp, "\t&%s_cdevsw,\n", dm->dm_name) < 0)
|
|
return (1);
|
|
}
|
|
}
|
|
|
|
if (fputs("};\n\nconst struct cdevsw **cdevsw = cdevsw0;\n", fp) < 0)
|
|
return (1);
|
|
|
|
if (fputs("const int sys_cdevsws = DEVSW_ARRAY_SIZE(cdevsw0);\n"
|
|
"int max_cdevsws = DEVSW_ARRAY_SIZE(cdevsw0);\n", fp) < 0)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Emit device major conversion table.
|
|
*/
|
|
static int
|
|
emitconv(FILE *fp)
|
|
{
|
|
struct devm *dm;
|
|
|
|
if (fputs("\n/* device conversion table */\n"
|
|
"struct devsw_conv devsw_conv0[] = {\n", fp) < 0)
|
|
return (-1);
|
|
TAILQ_FOREACH(dm, &alldevms, dm_next) {
|
|
if (fprintf(fp, "\t{ \"%s\", %d, %d },\n", dm->dm_name,
|
|
dm->dm_bmajor, dm->dm_cmajor) < 0)
|
|
return (1);
|
|
}
|
|
if (fputs("};\n\n"
|
|
"struct devsw_conv *devsw_conv = devsw_conv0;\n"
|
|
"int max_devsw_convs = DEVSW_ARRAY_SIZE(devsw_conv0);\n",
|
|
fp) < 0)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Emit specific device major informations.
|
|
*/
|
|
static int
|
|
emitdev(FILE *fp)
|
|
{
|
|
struct devm *dm;
|
|
char mstr[16];
|
|
|
|
if (fputs("\n", fp) < 0)
|
|
return (1);
|
|
|
|
(void)strncpy(mstr, "swap", sizeof(mstr));
|
|
if ((dm = ht_lookup(bdevmtab, intern(mstr))) == NULL)
|
|
panic("swap device is not configured");
|
|
if (fprintf(fp, "const dev_t swapdev = makedev(%d, 0);\n",
|
|
dm->dm_bmajor) < 0)
|
|
return (1);
|
|
|
|
(void)strncpy(mstr, "mem", sizeof(mstr));
|
|
if ((dm = ht_lookup(cdevmtab, intern(mstr))) == NULL)
|
|
panic("memory device is not configured");
|
|
if (fprintf(fp, "const dev_t zerodev = makedev(%d, DEV_ZERO);\n",
|
|
dm->dm_cmajor) < 0)
|
|
return (1);
|
|
|
|
if (fputs("\n/* mem_no is only used in iskmemdev() */\n", fp) < 0)
|
|
return (1);
|
|
if (fprintf(fp, "const int mem_no = %d;\n", dm->dm_cmajor) < 0)
|
|
return (1);
|
|
|
|
return (0);
|
|
}
|