freebsd-dev/usr.sbin/config/config.h
Emmanuel Vadot 91221f548e config: Only warn if duplicate option/device comes from the same file
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
2019-04-16 20:08:19 +00:00

224 lines
6.0 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1980, 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. 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.h 8.1 (Berkeley) 6/6/93
* $FreeBSD$
*/
/*
* Config.
*/
#include <sys/types.h>
#include <sys/queue.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
struct cfgfile {
STAILQ_ENTRY(cfgfile) cfg_next;
char *cfg_path;
};
STAILQ_HEAD(, cfgfile) cfgfiles;
struct file_list {
STAILQ_ENTRY(file_list) f_next;
char *f_fn; /* the name */
int f_type; /* type */
u_char f_flags; /* see below */
char *f_compilewith; /* special make rule if present */
char *f_depends; /* additional dependencies */
char *f_clean; /* File list to add to clean rule */
char *f_warn; /* warning message */
const char *f_objprefix; /* prefix string for object name */
const char *f_srcprefix; /* source prefix such as $S/ */
};
struct files_name {
char *f_name;
STAILQ_ENTRY(files_name) f_next;
};
/*
* Types.
*/
#define NORMAL 1
#define PROFILING 3
#define NODEPEND 4
#define LOCAL 5
#define DEVDONE 0x80000000
#define TYPEMASK 0x7fffffff
/*
* Attributes (flags).
*/
#define NO_IMPLCT_RULE 1
#define NO_OBJ 2
#define BEFORE_DEPEND 4
#define NOWERROR 16
struct device {
int d_done; /* processed */
char *d_name; /* name of device (e.g. rk11) */
char *yyfile; /* name of the file that first include the device */
#define UNKNOWN -2 /* -2 means not set yet */
STAILQ_ENTRY(device) d_next; /* Next one in list */
};
struct config {
char *s_sysname;
};
/*
* Config has a global notion of which machine type is
* being used. It uses the name of the machine in choosing
* files and directories. Thus if the name of the machine is ``i386'',
* it will build from ``Makefile.i386'' and use ``../i386/inline''
* in the makerules, etc. machinearch is the global notion of the
* MACHINE_ARCH for this MACHINE.
*/
char *machinename;
char *machinearch;
/*
* For each machine, a set of CPU's may be specified as supported.
* These and the options (below) are put in the C flags in the makefile.
*/
struct cputype {
char *cpu_name;
SLIST_ENTRY(cputype) cpu_next;
};
SLIST_HEAD(, cputype) cputype;
/*
* A set of options may also be specified which are like CPU types,
* but which may also specify values for the options.
* A separate set of options may be defined for make-style options.
*/
struct opt {
char *op_name;
char *op_value;
int op_ownfile; /* true = own file, false = makefile */
char *yyfile; /* name of the file that first include the option */
SLIST_ENTRY(opt) op_next;
SLIST_ENTRY(opt) op_append;
};
SLIST_HEAD(opt_head, opt) opt, mkopt, rmopts;
struct opt_list {
char *o_name;
char *o_file;
int o_flags;
#define OL_ALIAS 1
SLIST_ENTRY(opt_list) o_next;
};
SLIST_HEAD(, opt_list) otab;
struct envvar {
char *env_str;
bool env_is_file;
STAILQ_ENTRY(envvar) envvar_next;
};
STAILQ_HEAD(envvar_head, envvar) envvars;
struct hint {
char *hint_name;
STAILQ_ENTRY(hint) hint_next;
};
STAILQ_HEAD(hint_head, hint) hints;
struct includepath {
char *path;
SLIST_ENTRY(includepath) path_next;
};
SLIST_HEAD(, includepath) includepath;
/*
* Tag present in the kernconf.tmpl template file. It's mandatory for those
* two strings to be the same. Otherwise you'll get into trouble.
*/
#define KERNCONFTAG "%%KERNCONFFILE%%"
/*
* Faked option to note, that the configuration file has been taken from the
* kernel file and inclusion of DEFAULTS etc.. isn't nessesery, because we
* already have a list of all required devices.
*/
#define OPT_AUTOGEN "CONFIG_AUTOGENERATED"
extern char *ident;
extern char kernconfstr[];
extern int do_trace;
extern int incignore;
char *get_word(FILE *);
char *get_quoted_word(FILE *);
char *path(const char *);
char *raisestr(char *);
void remember(const char *);
void moveifchanged(const char *, const char *);
int yylex(void);
void options(void);
void makefile(void);
void makeenv(void);
void makehints(void);
void headers(void);
void cfgfile_add(const char *);
void cfgfile_removeall(void);
FILE *open_makefile_template(void);
extern STAILQ_HEAD(device_head, device) dtab;
extern char errbuf[80];
extern int yyline;
extern const char *yyfile;
extern STAILQ_HEAD(file_list_head, file_list) ftab;
extern STAILQ_HEAD(files_name_head, files_name) fntab;
extern int profiling;
extern int debugging;
extern int found_defaults;
extern int maxusers;
extern int versreq;
extern char *PREFIX; /* Config file name - for error messages */
extern char srcdir[]; /* root of the kernel source tree */
#define eq(a,b) (!strcmp(a,b))
#define ns(s) strdup(s)