f71c01cc52
Use Warner Losh's "hint" driver to decode ascii strings to fill the resource table at boot time. config(8) no longer generates an ioconf.c table - ie: the configuration no longer has to be compiled into the kernel. You can reconfigure your isa devices with the likes of this at loader(8) time: set hint.ed.0.port=0x320 userconfig will be rewritten to use this style interface one day and will move to /boot/userconfig.4th or something like that. It is still possible to statically compile in a set of hints into a kernel if you do not wish to use loader(8). See the "hints" directive in GENERIC as an example. All device wiring has been moved out of config(8). There is a set of helper scripts (see i386/conf/gethints.pl, and the same for alpha and pc98) that extract the 'at isa? port foo irq bar' from the old files and produces a hints file. If you install this file as /boot/device.hints (and update /boot/defaults/loader.conf - You can do a build/install in sys/boot) then loader will load it automatically for you. You can also compile in the hints directly with: hints "device.hints" as well. There are a few things that I'm not too happy with yet. Under this scheme, things like LINT would no longer be useful as "documentation" of settings. I have renamed this file to 'NOTES' and stored the example hints strings in it. However... this is not something that config(8) understands, so there is a script that extracts the build-specific data from the documentation file (NOTES) to produce a LINT that can be config'ed and built. A stack of man4 pages will need updating. :-/ Also, since there is no longer a difference between 'device' and 'pseudo-device' I collapsed the two together, and the resulting 'device' takes a 'number of units' for devices that still have it statically allocated. eg: 'device fe 4' will compile the fe driver with NFE set to 4. You can then set hints for 4 units (0 - 3). Also note that 'device fe0' will be interpreted as "zero units of 'fe'" which would be bad, so there is a config warning for this. This is only needed for old drivers that still have static limits on numbers of units. All the statically limited drivers that I could find were marked. Please exercise EXTREME CAUTION when transitioning! Moral support by: phk, msmith, dfr, asmodai, imp, and others
164 lines
4.6 KiB
C
164 lines
4.6 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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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 <stdlib.h>
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#include <string.h>
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struct file_list {
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struct file_list *f_next;
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char *f_fn; /* the name */
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int f_type; /* type or count */
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u_char f_flags; /* see below */
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char *f_special; /* 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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/*
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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 CONFIGDEP 1
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#define NO_IMPLCT_RULE 2
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#define NO_OBJ 4
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#define BEFORE_DEPEND 8
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#define NEED_COUNT 16
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#define ISDUP 32
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struct device {
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int d_type; /* DEVICE, bus adaptor */
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char *d_name; /* name of device (e.g. rk11) */
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int d_count; /* device count */
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#define QUES -1 /* -1 means '?' */
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#define UNKNOWN -2 /* -2 means not set yet */
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struct 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.
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*/
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int machine;
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char *machinename;
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#define MACHINE_I386 1
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#define MACHINE_PC98 2
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#define MACHINE_ALPHA 3
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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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struct cputype *cpu_next;
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} *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_line; /* line number for error-reporting */
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int op_ownfile; /* true = own file, false = makefile */
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struct opt *op_next;
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} *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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struct opt_list *o_next;
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} *otab;
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extern char *ident;
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extern char *hints;
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extern int do_trace;
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char *get_word(FILE *);
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char *get_quoted_word(FILE *);
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char *path(char *);
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char *raisestr(char *);
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void moveifchanged(const char *, const char *);
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void newbus_ioconf(void);
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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 struct device *dtab;
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extern char errbuf[80];
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extern int yyline;
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extern struct file_list *ftab;
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extern int profiling;
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extern int debugging;
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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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