91221f548e
This is useful for arm (possibly other arches too) where we want to have
a GENERIC kernel that only include files for the different SoC. Since
multiple SoCs/Board needs the same device we would need to do either :
Include the device in a generic file
Include the device in each file that really needs it
Option 1 works but if someone wants to create a specific kernel config
(which isn't uncommon for embedded system), he will need to add a lots
of nodevice to it.
Option 2 also works but produce a lots of warnings.
Reviewed by: kevans
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D19424
224 lines
6.0 KiB
C
224 lines
6.0 KiB
C
/*-
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* SPDX-License-Identifier: BSD-3-Clause
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*
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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. 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 <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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struct cfgfile {
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STAILQ_ENTRY(cfgfile) cfg_next;
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char *cfg_path;
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};
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STAILQ_HEAD(, cfgfile) cfgfiles;
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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 dependencies */
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char *f_clean; /* File list to add to clean rule */
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char *f_warn; /* warning message */
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const char *f_objprefix; /* prefix string for object name */
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const char *f_srcprefix; /* source prefix such as $S/ */
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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 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 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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char *yyfile; /* name of the file that first include the device */
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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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char *yyfile; /* name of the file that first include the option */
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SLIST_ENTRY(opt) op_next;
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SLIST_ENTRY(opt) op_append;
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};
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SLIST_HEAD(opt_head, opt) opt, mkopt, rmopts;
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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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int o_flags;
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#define OL_ALIAS 1
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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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struct envvar {
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char *env_str;
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bool env_is_file;
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STAILQ_ENTRY(envvar) envvar_next;
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};
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STAILQ_HEAD(envvar_head, envvar) envvars;
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struct hint {
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char *hint_name;
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STAILQ_ENTRY(hint) hint_next;
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};
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STAILQ_HEAD(hint_head, hint) hints;
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struct includepath {
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char *path;
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SLIST_ENTRY(includepath) path_next;
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};
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SLIST_HEAD(, includepath) includepath;
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/*
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* Tag present in the kernconf.tmpl template file. It's mandatory for those
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* two strings to be the same. Otherwise you'll get into trouble.
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*/
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#define KERNCONFTAG "%%KERNCONFFILE%%"
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/*
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* Faked option to note, that the configuration file has been taken from the
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* kernel file and inclusion of DEFAULTS etc.. isn't nessesery, because we
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* already have a list of all required devices.
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*/
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#define OPT_AUTOGEN "CONFIG_AUTOGENERATED"
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extern char *ident;
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extern char kernconfstr[];
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extern int do_trace;
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extern int incignore;
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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 yylex(void);
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void options(void);
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void makefile(void);
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void makeenv(void);
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void makehints(void);
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void headers(void);
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void cfgfile_add(const char *);
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void cfgfile_removeall(void);
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FILE *open_makefile_template(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 int versreq;
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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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