dfdbf9be00
directory before the specified config file. This is implemented by opening DEFAULTS as stdin if it exists, and if so resetting stdin to the actual config file when DEFAULTS is fully parsed via yywrap(). In short, this lets us create DEFAULTS kernel configs in /sys/<arch>/conf that can enable certain options or devices by default and allow users to disable them via 'nooptions' or 'nodevice' rather than having to create kludge NO_FOO options. Requested by: scottl Reviewed by: scottl
173 lines
4.7 KiB
C
173 lines
4.7 KiB
C
/*
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)config.h 8.1 (Berkeley) 6/6/93
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* $FreeBSD$
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*/
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/*
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* Config.
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*/
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#include <sys/types.h>
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#include <sys/queue.h>
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#include <stdlib.h>
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#include <string.h>
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struct file_list {
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STAILQ_ENTRY(file_list) f_next;
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char *f_fn; /* the name */
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int f_type; /* type */
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u_char f_flags; /* see below */
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char *f_compilewith; /* special make rule if present */
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char *f_depends; /* additional dependancies */
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char *f_clean; /* File list to add to clean rule */
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char *f_needs;
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char *f_warn; /* warning message */
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};
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struct files_name {
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char *f_name;
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STAILQ_ENTRY(files_name) f_next;
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};
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/*
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* Types.
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*/
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#define NORMAL 1
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#define INVISIBLE 2
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#define PROFILING 3
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#define NODEPEND 4
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#define LOCAL 5
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#define DEVDONE 0x80000000
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#define TYPEMASK 0x7fffffff
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/*
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* Attributes (flags).
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*/
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#define NO_IMPLCT_RULE 1
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#define NO_OBJ 2
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#define BEFORE_DEPEND 4
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#define ISDUP 8
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#define NOWERROR 16
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struct device {
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int d_done; /* processed */
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char *d_name; /* name of device (e.g. rk11) */
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#define UNKNOWN -2 /* -2 means not set yet */
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STAILQ_ENTRY(device) d_next; /* Next one in list */
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};
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struct config {
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char *s_sysname;
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};
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/*
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* Config has a global notion of which machine type is
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* being used. It uses the name of the machine in choosing
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* files and directories. Thus if the name of the machine is ``i386'',
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* it will build from ``Makefile.i386'' and use ``../i386/inline''
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* in the makerules, etc. machinearch is the global notion of the
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* MACHINE_ARCH for this MACHINE.
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*/
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char *machinename;
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char *machinearch;
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/*
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* For each machine, a set of CPU's may be specified as supported.
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* These and the options (below) are put in the C flags in the makefile.
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*/
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struct cputype {
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char *cpu_name;
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SLIST_ENTRY(cputype) cpu_next;
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};
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SLIST_HEAD(, cputype) cputype;
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/*
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* A set of options may also be specified which are like CPU types,
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* but which may also specify values for the options.
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* A separate set of options may be defined for make-style options.
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*/
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struct opt {
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char *op_name;
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char *op_value;
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int op_ownfile; /* true = own file, false = makefile */
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SLIST_ENTRY(opt) op_next;
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};
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SLIST_HEAD(opt_head, opt) opt, mkopt;
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struct opt_list {
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char *o_name;
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char *o_file;
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SLIST_ENTRY(opt_list) o_next;
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};
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SLIST_HEAD(, opt_list) otab;
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extern char *ident;
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extern char *env;
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extern char *hints;
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extern int do_trace;
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extern int envmode;
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extern int hintmode;
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char *get_word(FILE *);
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char *get_quoted_word(FILE *);
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char *path(const char *);
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char *raisestr(char *);
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void remember(const char *);
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void moveifchanged(const char *, const char *);
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int yyparse(void);
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int yylex(void);
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void options(void);
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void makefile(void);
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void headers(void);
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extern STAILQ_HEAD(device_head, device) dtab;
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extern char errbuf[80];
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extern int yyline;
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extern const char *yyfile;
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extern STAILQ_HEAD(file_list_head, file_list) ftab;
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extern STAILQ_HEAD(files_name_head, files_name) fntab;
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extern int profiling;
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extern int debugging;
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extern int found_defaults;
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extern int maxusers;
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extern char *PREFIX; /* Config file name - for error messages */
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extern char srcdir[]; /* root of the kernel source tree */
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#define eq(a,b) (!strcmp(a,b))
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#define ns(s) strdup(s)
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