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|
%union {
char *str;
int val;
struct file_list *file;
}
%token ARCH
%token COMMA
%token CONFIG
%token CPU
%token DEVICE
%token EQUALS
%token HINTS
%token IDENT
%token MAXUSERS
%token PROFILE
%token OPTIONS
%token MAKEOPTIONS
%token SEMICOLON
%token <str> ID
%token <val> NUMBER
%type <str> Save_id
%type <str> Opt_value
%type <str> Dev
%{
/*
* Copyright (c) 1988, 1993
* The Regents of the University of California. All rights reserved.
*
* 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 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.
*
* 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.
*
* @(#)config.y 8.1 (Berkeley) 6/6/93
* $FreeBSD$
*/
#include <ctype.h>
#include <err.h>
#include <stdio.h>
#include <string.h>
#include "config.h"
static struct device cur;
static struct device *curp = 0;
struct device *dtab;
char *ident;
char *hints;
int hintmode;
int yyline;
struct file_list *ftab;
char errbuf[80];
int maxusers;
#define ns(s) strdup(s)
static void yyerror(char *s);
static char *
devopt(char *dev)
{
char *ret = malloc(strlen(dev) + 5);
sprintf(ret, "DEV_%s", dev);
raisestr(ret);
return ret;
}
%}
%%
Configuration:
Many_specs
;
Many_specs:
Many_specs Spec
|
/* lambda */
;
Spec:
Device_spec SEMICOLON
= { newdev(&cur); } |
Config_spec SEMICOLON
|
SEMICOLON
|
error SEMICOLON
;
Config_spec:
ARCH Save_id
= {
if (!strcmp($2, "i386")) {
machine = MACHINE_I386;
machinename = "i386";
} else if (!strcmp($2, "pc98")) {
machine = MACHINE_PC98;
machinename = "pc98";
} else if (!strcmp($2, "alpha")) {
machine = MACHINE_ALPHA;
machinename = "alpha";
} else if (!strcmp($2, "ia64")) {
machine = MACHINE_IA64;
machinename = "ia64";
} else if (!strcmp($2, "powerpc")) {
machine = MACHINE_POWERPC;
machinename = "powerpc";
} else
yyerror("Unknown machine type");
} |
CPU Save_id
= {
struct cputype *cp =
(struct cputype *)malloc(sizeof (struct cputype));
memset(cp, 0, sizeof(*cp));
cp->cpu_name = $2;
cp->cpu_next = cputype;
cputype = cp;
} |
OPTIONS Opt_list
|
MAKEOPTIONS Mkopt_list
|
IDENT ID
= { ident = $2; } |
System_spec
|
MAXUSERS NUMBER
= { maxusers = $2; } |
PROFILE NUMBER
= { profiling = $2; } |
HINTS ID
= {
hints = $2;
hintmode = 1;
};
System_spec:
CONFIG System_id System_parameter_list
= { errx(1, "line %d: root/dump/swap specifications obsolete", yyline);}
|
CONFIG System_id
;
System_id:
Save_id
= {
struct opt *op = (struct opt *)malloc(sizeof (struct opt));
memset(op, 0, sizeof(*op));
op->op_name = ns("KERNEL");
op->op_ownfile = 0;
op->op_next = mkopt;
op->op_value = $1;
op->op_line = yyline + 1;
mkopt = op;
};
System_parameter_list:
System_parameter_list ID
| ID
;
Opt_list:
Opt_list COMMA Option
|
Option
;
Option:
Save_id
= {
struct opt *op = (struct opt *)malloc(sizeof (struct opt));
char *s;
memset(op, 0, sizeof(*op));
op->op_name = $1;
op->op_next = opt;
op->op_value = 0;
/*
* op->op_line is 1-based; yyline is 0-based but is now 1
* larger than when `Save_id' was lexed.
*/
op->op_line = yyline;
opt = op;
if ((s = strchr(op->op_name, '=')))
errx(1, "line %d: The `=' in options should not be quoted", yyline);
} |
Save_id EQUALS Opt_value
= {
struct opt *op = (struct opt *)malloc(sizeof (struct opt));
memset(op, 0, sizeof(*op));
op->op_name = $1;
op->op_next = opt;
op->op_value = $3;
op->op_line = yyline + 1;
opt = op;
} ;
Opt_value:
ID
= { $$ = $1; } |
NUMBER
= {
char buf[80];
(void) snprintf(buf, sizeof(buf), "%d", $1);
$$ = ns(buf);
} ;
Save_id:
ID
= { $$ = $1; }
;
Mkopt_list:
Mkopt_list COMMA Mkoption
|
Mkoption
;
Mkoption:
Save_id EQUALS Opt_value
= {
struct opt *op = (struct opt *)malloc(sizeof (struct opt));
memset(op, 0, sizeof(*op));
op->op_name = $1;
op->op_ownfile = 0; /* for now */
op->op_next = mkopt;
op->op_value = $3;
op->op_line = yyline + 1;
mkopt = op;
} ;
Dev:
ID
= { $$ = $1; }
;
Device_spec:
DEVICE Dev
= {
struct opt *op = (struct opt *)malloc(sizeof (struct opt));
memset(op, 0, sizeof(*op));
op->op_name = devopt($2);
op->op_next = opt;
op->op_value = ns("1");
op->op_line = yyline;
opt = op;
/* and the device part */
cur.d_name = $2;
cur.d_count = UNKNOWN;
} |
DEVICE Dev NUMBER
= {
struct opt *op = (struct opt *)malloc(sizeof (struct opt));
memset(op, 0, sizeof(*op));
op->op_name = devopt($2);
op->op_next = opt;
op->op_value = ns("1");
op->op_line = yyline;
opt = op;
/* and the device part */
cur.d_name = $2;
cur.d_count = $3;
if (cur.d_count == 0)
errx(1, "line %d: devices with zero units are not likely to be correct", yyline);
} ;
%%
static void
yyerror(char *s)
{
errx(1, "line %d: %s", yyline + 1, s);
}
/*
* add a device to the list of devices
*/
static void
newdev(struct device *dp)
{
struct device *np;
np = (struct device *) malloc(sizeof *np);
memset(np, 0, sizeof(*np));
*np = *dp;
np->d_name = dp->d_name;
np->d_count = dp->d_count;
np->d_next = 0;
if (curp == 0)
dtab = np;
else
curp->d_next = np;
curp = np;
}
|