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      1 /*	$NetBSD: defs.h,v 1.109 2024/04/05 00:43:42 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1992, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * This software was developed by the Computer Systems Engineering group
      8  * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
      9  * contributed to Berkeley.
     10  *
     11  * All advertising materials mentioning features or use of this software
     12  * must display the following acknowledgement:
     13  *	This product includes software developed by the University of
     14  *	California, Lawrence Berkeley Laboratories.
     15  *
     16  * Redistribution and use in source and binary forms, with or without
     17  * modification, are permitted provided that the following conditions
     18  * are met:
     19  * 1. Redistributions of source code must retain the above copyright
     20  *    notice, this list of conditions and the following disclaimer.
     21  * 2. Redistributions in binary form must reproduce the above copyright
     22  *    notice, this list of conditions and the following disclaimer in the
     23  *    documentation and/or other materials provided with the distribution.
     24  * 3. Neither the name of the University nor the names of its contributors
     25  *    may be used to endorse or promote products derived from this software
     26  *    without specific prior written permission.
     27  *
     28  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     29  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     30  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     31  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     32  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     33  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     34  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     35  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     36  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     37  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     38  * SUCH DAMAGE.
     39  *
     40  *	from: @(#)config.h	8.1 (Berkeley) 6/6/93
     41  */
     42 
     43 /*
     44  * defs.h:  Global definitions for "config"
     45  */
     46 
     47 #if HAVE_NBTOOL_CONFIG_H
     48 #include "nbtool_config.h"
     49 #endif
     50 
     51 #include <sys/types.h>
     52 #include <sys/param.h>
     53 #include <sys/queue.h>
     54 
     55 #if !defined(MAKE_BOOTSTRAP) && defined(BSD)
     56 #include <sys/cdefs.h>
     57 #include <paths.h>
     58 #endif
     59 
     60 #include <stdio.h>
     61 #include <stdlib.h>
     62 #include <unistd.h>
     63 
     64 /* These are really for MAKE_BOOTSTRAP but harmless. */
     65 #ifndef __dead
     66 #define __dead
     67 #endif
     68 #ifndef __printflike
     69 #define __printflike(a, b)
     70 #endif
     71 #ifndef _PATH_DEVNULL
     72 #define _PATH_DEVNULL "/dev/null"
     73 #endif
     74 
     75 #ifdef	MAKE_BOOTSTRAP
     76 #undef	dev_t
     77 #undef	devmajor_t
     78 #undef	devminor_t
     79 #undef	NODEV
     80 #undef	NODEVMAJOR
     81 #undef	major
     82 #undef	minor
     83 #undef	makedev
     84 #define	dev_t		unsigned int	/* XXX: assumes int is 32 bits */
     85 #define	NODEV		((dev_t)-1)
     86 #define devmajor_t	int
     87 #define devminor_t	int
     88 #define NODEVMAJOR	(-1)
     89 #define major(x)        ((devmajor_t)((((x) & 0x000fff00) >>  8)))
     90 #define minor(x)        ((devminor_t)((((x) & 0xfff00000) >> 12) | \
     91 			       (((x) & 0x000000ff) >>  0)))
     92 #define makedev(x,y)    ((dev_t)((((dev_t)(x) <<  8) & 0x000fff00U) | \
     93                                  (((dev_t)(y) << 12) & 0xfff00000U) | \
     94                                  (((dev_t)(y) <<  0) & 0x000000ffU)))
     95 #define __attribute__(x)
     96 #endif	/* MAKE_BOOTSTRAP */
     97 
     98 #undef setprogname
     99 #undef getprogname
    100 extern const char *progname;
    101 #define	setprogname(s)	((void)(progname = (s)))
    102 #define	getprogname()	(progname)
    103 
    104 #define ARRCHR '#'
    105 
    106 /*
    107  * The next two lines define the current version of the config(1) binary,
    108  * and the minimum version of the configuration files it supports.
    109  */
    110 #define CONFIG_VERSION		20240118
    111 #define CONFIG_MINVERSION	0
    112 
    113 struct where {
    114 	const char *w_srcfile;		/* file name where we are defined */
    115 	u_short	w_srcline;		/* line number where we are defined */
    116 };
    117 /*
    118  * Name/value lists.  Values can be strings or pointers and/or can carry
    119  * integers.  The names can be NULL, resulting in simple value lists.
    120  */
    121 struct nvlist {
    122 	struct nvlist	*nv_next;
    123 	const char	*nv_name;
    124 	const char	*nv_str;
    125 	void		*nv_ptr;
    126 	long long	nv_num;
    127 	int		nv_ifunit;		/* XXX XXX XXX */
    128 	int		nv_flags;
    129 #define	NV_DEPENDED	1
    130 	struct where	nv_where;
    131 };
    132 
    133 /*
    134  * Kernel configurations.
    135  */
    136 struct config {
    137 	TAILQ_ENTRY(config) cf_next;
    138 	const char *cf_name;		/* "netbsd" */
    139 	const char *cf_fstype;		/* file system type */
    140 	struct	nvlist *cf_root;	/* "root on ra0a" */
    141 	struct	nvlist *cf_dump;	/* "dumps on ra0b" */
    142 	struct where	cf_where;
    143 };
    144 
    145 /*
    146  * Option definition list
    147  */
    148 struct defoptlist {
    149 	struct defoptlist *dl_next;
    150 	const char *dl_name;
    151 	const char *dl_value;
    152 	const char *dl_lintvalue;
    153 	int dl_obsolete;
    154 	int dl_mkvar;
    155 	struct nvlist *dl_depends;
    156 	struct where	dl_where;
    157 };
    158 
    159 struct files;
    160 TAILQ_HEAD(filelist, files);
    161 
    162 struct module {
    163 	const char		*m_name;
    164 #if 1
    165 	struct attrlist		*m_deps;
    166 #else
    167 	struct attrlist		*m_attrs;
    168 	struct modulelist	*m_deps;
    169 #endif
    170 	int			m_expanding;
    171 	struct filelist		m_files;
    172 	int			m_weight;
    173 };
    174 
    175 /*
    176  * Attributes.  These come in three flavors: "plain", "device class,"
    177  * and "interface".  Plain attributes (e.g., "ether") simply serve
    178  * to pull in files.  Device class attributes are like plain
    179  * attributes, but additionally specify a device class (e.g., the
    180  * "disk" device class attribute specifies that devices with the
    181  * attribute belong to the "DV_DISK" class) and are mutually exclusive.
    182  * Interface attributes (e.g., "scsi") carry three lists: locators,
    183  * child devices, and references.  The locators are those things
    184  * that must be specified in order to configure a device instance
    185  * using this attribute (e.g., "tg0 at scsi0").  The a_devs field
    186  * lists child devices that can connect here (e.g., "tg"s), while
    187  * the a_refs are parents that carry the attribute (e.g., actual
    188  * SCSI host adapter drivers such as the SPARC "esp").
    189  */
    190 struct attr {
    191 	/* XXX */
    192 	struct module a_m;
    193 #define	a_name		a_m.m_name
    194 #define	a_deps		a_m.m_deps
    195 #define	a_expanding	a_m.m_expanding
    196 #define	a_files		a_m.m_files
    197 #define	a_weight	a_m.m_weight
    198 
    199 	/* "interface attribute" */
    200 	uint8_t	a_iattr;		/* true => allows children */
    201 	uint8_t a_deselected;		/* deselected */
    202 	struct	loclist *a_locs;	/* locators required */
    203 	int	a_loclen;		/* length of above list */
    204 	struct	nvlist *a_devs;		/* children */
    205 	struct	nvlist *a_refs;		/* parents */
    206 
    207 	/* "device class" */
    208 	const char *a_devclass;		/* device class described */
    209 	struct where a_where;
    210 
    211 	size_t	a_idx;			/* index to break sorting ties */
    212 };
    213 
    214 /*
    215  * List of attributes.
    216  */
    217 struct attrlist {
    218 	struct attrlist *al_next;
    219 	struct attr *al_this;
    220 };
    221 
    222 /*
    223  * List of locators. (Either definitions or uses...)
    224  *
    225  * XXX it would be nice if someone could clarify wtf ll_string and ll_num
    226  * are actually holding. (This stuff was previously stored in a very ad
    227  * hoc fashion, and the code is far from clear.)
    228  */
    229 struct loclist {
    230 	const char *ll_name;
    231 	const char *ll_string;
    232 	long long ll_num;
    233 	struct loclist *ll_next;
    234 };
    235 
    236 /*
    237  * Parent specification.  Multiple device instances may share a
    238  * given parent spec.  Parent specs are emitted only if there are
    239  * device instances which actually reference it.
    240  */
    241 struct pspec {
    242 	TAILQ_ENTRY(pspec) p_list;	/* link on parent spec list */
    243 	struct	attr *p_iattr;		/* interface attribute of parent */
    244 	struct	devbase *p_atdev;	/* optional parent device base */
    245 	int	p_atunit;		/* optional parent device unit */
    246 	struct	nvlist *p_devs;		/* children using it */
    247 	int	p_inst;			/* parent spec instance */
    248 	int	p_active;		/* parent spec is actively used */
    249 	int	p_ref;			/* refcount */
    250 };
    251 
    252 /*
    253  * The "base" part (struct devbase) of a device ("uba", "sd"; but not
    254  * "uba2" or "sd0").  It may be found "at" one or more attributes,
    255  * including "at root" (this is represented by a NULL attribute), as
    256  * specified by the device attachments (struct deva).
    257  *
    258  * Each device may also export attributes.  If any provide an output
    259  * interface (e.g., "esp" provides "scsi"), other devices (e.g.,
    260  * "tg"s) can be found at instances of this one (e.g., "esp"s).
    261  * Such a connection must provide locators as specified by that
    262  * interface attribute (e.g., "target").  The base device can
    263  * export both output (aka `interface') attributes, as well as
    264  * import input (`plain') attributes.  Device attachments may
    265  * only import input attributes; it makes no sense to have a
    266  * specific attachment export a new interface to other devices.
    267  *
    268  * Each base carries a list of instances (via d_ihead).  Note that this
    269  * list "skips over" aliases; those must be found through the instances
    270  * themselves.  Each base also carries a list of possible attachments,
    271  * each of which specify a set of devices that the device can attach
    272  * to, as well as the device instances that are actually using that
    273  * attachment.
    274  */
    275 struct devbase {
    276 	const char *d_name;		/* e.g., "sd" */
    277 	TAILQ_ENTRY(devbase) d_next;
    278 	int 	d_level;
    279 	struct devbase *d_levelparent;
    280 	int	d_isdef;		/* set once properly defined */
    281 	int	d_ispseudo;		/* is a pseudo-device */
    282 	devmajor_t d_major;		/* used for "root on sd0", e.g. */
    283 	struct	attrlist *d_attrs;	/* attributes, if any */
    284 	int	d_umax;			/* highest unit number + 1 */
    285 	struct	devi *d_ihead;		/* first instance, if any */
    286 	struct	devi **d_ipp;		/* used for tacking on more instances */
    287 	struct	deva *d_ahead;		/* first attachment, if any */
    288 	struct	deva **d_app;		/* used for tacking on attachments */
    289 	struct	attr *d_classattr;	/* device class attribute (if any) */
    290 	struct	where d_where;
    291 };
    292 
    293 struct deva {
    294 	const char *d_name;		/* name of attachment, e.g. "com_isa" */
    295 	TAILQ_ENTRY(deva) d_next;	/* list of all instances */
    296 	struct	deva *d_bsame;		/* list on same base */
    297 	int	d_isdef;		/* set once properly defined */
    298 	struct	devbase *d_devbase;	/* the base device */
    299 	struct	nvlist *d_atlist;	/* e.g., "at tg" (attr list) */
    300 	struct	attrlist *d_attrs;	/* attributes, if any */
    301 	struct	devi *d_ihead;		/* first instance, if any */
    302 	struct	devi **d_ipp;		/* used for tacking on more instances */
    303 	struct	where d_where;
    304 };
    305 
    306 /*
    307  * An "instance" of a device.  The same instance may be listed more
    308  * than once, e.g., "xx0 at isa? port FOO" + "xx0 at isa? port BAR".
    309  *
    310  * After everything has been read in and verified, the devi's are
    311  * "packed" to collect all the information needed to generate ioconf.c.
    312  * In particular, we try to collapse multiple aliases into a single entry.
    313  * We then assign each "primary" (non-collapsed) instance a cfdata index.
    314  * Note that there may still be aliases among these.
    315  */
    316 struct devi {
    317 	/* created while parsing config file */
    318 	const char *i_name;	/* e.g., "sd0" */
    319 	int	i_unit;		/* unit from name, e.g., 0 */
    320 	struct	devbase *i_base;/* e.g., pointer to "sd" base */
    321 	TAILQ_ENTRY(devi) i_next; /* list of all instances */
    322 	struct	devi *i_bsame;	/* list on same base */
    323 	struct	devi *i_asame;	/* list on same base attachment */
    324 	struct	devi *i_alias;	/* other aliases of this instance */
    325 	const char *i_at;	/* where this is "at" (NULL if at root) */
    326 	struct	pspec *i_pspec;	/* parent spec (NULL if at root) */
    327 	struct	deva *i_atdeva;
    328 	const char **i_locs;	/* locators (as given by pspec's iattr) */
    329 	int	i_cfflags;	/* flags from config line */
    330 	int	i_level;	/* position between negated instances */
    331 	int	i_active;
    332 #define	DEVI_ORPHAN	0	/* instance has no active parent */
    333 #define	DEVI_ACTIVE	1	/* instance has an active parent */
    334 #define	DEVI_IGNORED	2	/* instance's parent has been removed */
    335 #define DEVI_BROKEN	3	/* instance is broken (syntax error) */
    336 	int	i_pseudoroot;	/* instance is pseudoroot */
    337 
    338 	/* created during packing or ioconf.c generation */
    339 	short	i_collapsed;	/* set => this alias no longer needed */
    340 	u_short	i_cfindex;	/* our index in cfdata */
    341 	int	i_locoff;	/* offset in locators.vec */
    342 	struct	where i_where;
    343 };
    344 /* special units */
    345 #define	STAR	(-1)		/* unit number for, e.g., "sd*" */
    346 #define	WILD	(-2)		/* unit number for, e.g., "sd?" */
    347 
    348 /*
    349  * Files (*.c, *.S, or *.o).  This structure defines the common fields
    350  * between the two.
    351  */
    352 struct files {
    353 	TAILQ_ENTRY(files) fi_next;
    354 	TAILQ_ENTRY(files) fi_snext;	/* per-suffix list */
    355 	struct	where fi_where;
    356 	u_char fi_flags;	/* as below */
    357 	const char *fi_tail;	/* name, i.e., strrchr(fi_path, '/') + 1 */
    358 	const char *fi_base;	/* tail minus ".c" (or whatever) */
    359 	const char *fi_dir;	/* path to file */
    360 	const char *fi_path;	/* full file path */
    361 	const char *fi_prefix;	/* any file prefix */
    362 	const char *fi_buildprefix;	/* prefix in builddir */
    363 	int fi_suffix;		/* single char suffix */
    364 	size_t fi_len;		/* path string length */
    365 	struct condexpr *fi_optx; /* options expression */
    366 	struct nvlist *fi_optf; /* flattened version of above, if needed */
    367 	const char *fi_mkrule;	/* special make rule, if any */
    368 	struct attr *fi_attr;	/* owner attr */
    369 	int fi_order;		/* score of order in ${ALLFILES} */
    370 	TAILQ_ENTRY(files) fi_anext;	/* next file in attr */
    371 };
    372 
    373 /* flags */
    374 #define	FI_SEL		0x01	/* selected */
    375 #define	FI_NEEDSCOUNT	0x02	/* needs-count */
    376 #define	FI_NEEDSFLAG	0x04	/* needs-flag */
    377 #define	FI_HIDDEN	0x08	/* obscured by other(s), base names overlap */
    378 
    379 extern size_t nselfiles;
    380 extern struct files **selfiles;
    381 
    382 /*
    383  * Condition expressions.
    384  */
    385 
    386 enum condexpr_types {
    387 	CX_ATOM,
    388 	CX_NOT,
    389 	CX_AND,
    390 	CX_OR,
    391 };
    392 struct condexpr {
    393 	enum condexpr_types cx_type;
    394 	union {
    395 		const char *atom;
    396 		struct condexpr *not;
    397 		struct {
    398 			struct condexpr *left;
    399 			struct condexpr *right;
    400 		} and, or;
    401 	} cx_u;
    402 };
    403 #define cx_atom	cx_u.atom
    404 #define cx_not	cx_u.not
    405 #define cx_and	cx_u.and
    406 #define cx_or	cx_u.or
    407 
    408 /*
    409  * File/object prefixes.  These are arranged in a stack, and affect
    410  * the behavior of the source path.
    411  */
    412 
    413 struct prefix;
    414 SLIST_HEAD(prefixlist, prefix);
    415 
    416 struct prefix {
    417 	SLIST_ENTRY(prefix)	pf_next;	/* next prefix in stack */
    418 	const char		*pf_prefix;	/* the actual prefix */
    419 };
    420 
    421 /*
    422  * Device major informations.
    423  */
    424 struct devm {
    425 	TAILQ_ENTRY(devm) dm_next;
    426 	const char	*dm_name;	/* [bc]devsw name */
    427 	devmajor_t	dm_cmajor;	/* character major */
    428 	devmajor_t	dm_bmajor;	/* block major */
    429 	struct condexpr	*dm_opts;	/* options */
    430 	struct nvlist	*dm_devnodes;	/* information on /dev nodes */
    431 	struct where dm_where;
    432 };
    433 
    434 /*
    435  * Hash tables look up name=value pairs.  The pointer value of the name
    436  * is assumed to be constant forever; this can be arranged by interning
    437  * the name.  (This is fairly convenient since our lexer does this for
    438  * all identifier-like strings---it has to save them anyway, lest yacc's
    439  * look-ahead wipe out the current one.)
    440  */
    441 struct hashtab;
    442 
    443 extern int lkmmode;
    444 extern const char *conffile;		/* source file, e.g., "GENERIC.sparc" */
    445 extern const char *machine;		/* machine type, e.g., "sparc" or "sun3" */
    446 extern const char *machinearch;	/* machine arch, e.g., "sparc" or "m68k" */
    447 extern struct	nvlist *machinesubarches;
    448 				/* machine subarches, e.g., "sun68k" or "hpc" */
    449 extern const char *ioconfname;		/* ioconf name, mutually exclusive to machine */
    450 extern const char *srcdir;		/* path to source directory (rel. to build) */
    451 extern const char *builddir;		/* path to build directory */
    452 extern const char *defbuilddir;	/* default build directory */
    453 extern const char *ident;		/* kernel "ident"ification string */
    454 extern int	errors;			/* counts calls to error() */
    455 extern int	minmaxusers;		/* minimum "maxusers" parameter */
    456 extern int	defmaxusers;		/* default "maxusers" parameter */
    457 extern int	maxmaxusers;		/* default "maxusers" parameter */
    458 extern int	maxusers;		/* configuration's "maxusers" parameter */
    459 extern int	maxpartitions;		/* configuration's "maxpartitions" parameter */
    460 extern int	version;		/* version of the configuration file */
    461 extern struct	nvlist *options;	/* options */
    462 extern struct	nvlist *fsoptions;	/* filesystems */
    463 extern struct	nvlist *mkoptions;	/* makeoptions */
    464 extern struct	nvlist *appmkoptions;	/* appending mkoptions */
    465 extern struct	nvlist *condmkoptions;	/* conditional makeoption table */
    466 extern struct	hashtab *devbasetab;	/* devbase lookup */
    467 extern struct	hashtab *devroottab;	/* attach at root lookup */
    468 extern struct	hashtab *devatab;	/* devbase attachment lookup */
    469 extern struct	hashtab *devitab;	/* device instance lookup */
    470 extern struct	hashtab *deaddevitab;	/* removed instances lookup */
    471 extern struct	hashtab *selecttab;	/* selects things that are "optional foo" */
    472 extern struct	hashtab *needcnttab;	/* retains names marked "needs-count" */
    473 extern struct	hashtab *opttab;	/* table of configured options */
    474 extern struct	hashtab *fsopttab;	/* table of configured file systems */
    475 extern struct	dlhash *defopttab;	/* options that have been "defopt"'d */
    476 extern struct	dlhash *defflagtab;	/* options that have been "defflag"'d */
    477 extern struct	dlhash *defparamtab;	/* options that have been "defparam"'d */
    478 extern struct	dlhash *defoptlint;	/* lint values for options */
    479 extern struct	nvhash *deffstab;	/* defined file systems */
    480 extern struct	dlhash *optfiletab;	/* "defopt"'d option .h files */
    481 extern struct	hashtab *attrtab;	/* attributes (locators, etc.) */
    482 extern struct	hashtab *attrdeptab;	/* attribute dependencies */
    483 extern struct	hashtab *bdevmtab;	/* block devm lookup */
    484 extern struct	hashtab *cdevmtab;	/* character devm lookup */
    485 
    486 TAILQ_HEAD(devbasetq, devbase);
    487 TAILQ_HEAD(devatq, deva);
    488 TAILQ_HEAD(conftq, config);
    489 TAILQ_HEAD(devitq, devi);
    490 TAILQ_HEAD(devmtq, devm);
    491 TAILQ_HEAD(pspectq, pspec);
    492 
    493 extern struct devbasetq allbases;	/* list of all devbase structures */
    494 extern struct devatq alldevas;		/* list of all devbase attachments */
    495 extern struct conftq allcf;		/* list of configured kernels */
    496 extern struct devitq alldevi,		/* list of all instances */
    497 		     allpseudo;		/* list of all pseudo-devices */
    498 extern struct devmtq alldevms;		/* list of all device-majors */
    499 extern struct pspectq allpspecs;	/* list of all parent specs */
    500 extern int	ndevi;			/* number of devi's (before packing) */
    501 extern int	npspecs;		/* number of parent specs */
    502 extern devmajor_t maxbdevm;		/* max number of block major */
    503 extern devmajor_t maxcdevm;		/* max number of character major */
    504 extern int	do_devsw;		/* 0 if pre-devsw config */
    505 extern int	oktopackage;		/* 0 before setmachine() */
    506 extern int	devilevel;		/* used for devi->i_level */
    507 
    508 extern struct filelist		allfiles;	/* list of all kernel source files */
    509 extern struct filelist		allcfiles;	/* list of all .c files */
    510 extern struct filelist		allsfiles;	/* list of all .S files */
    511 extern struct filelist		allofiles;	/* list of all .o files */
    512 
    513 extern struct prefixlist	prefixes,	/* prefix stack */
    514 				allprefixes;	/* all prefixes used
    515 						 * (after popped) */
    516 extern struct prefixlist	buildprefixes,	/* build prefix stack */
    517 				allbuildprefixes;/* all build prefixes used
    518 						  * (after popped) */
    519 
    520 extern struct attr allattr;
    521 extern struct devi **packed;	/* arrayified table for packed devi's */
    522 extern size_t npacked;		/* size of packed table, <= ndevi */
    523 
    524 extern struct locators {			/* loc[] table for config */
    525 	const char **vec;
    526 	int	used;
    527 } locators;
    528 
    529 struct numconst {
    530 	int64_t	val;
    531 	int fmt;
    532 };
    533 
    534 /* files.c */
    535 void	initfiles(void);
    536 void	checkfiles(void);
    537 int	fixfiles(void);		/* finalize */
    538 int	fixdevsw(void);
    539 void	addfile(const char *, struct condexpr *, u_char, const char *);
    540 int	expr_eval(struct condexpr *, int (*)(const char *, void *), void *);
    541 
    542 /* hash.c */
    543 struct	hashtab *ht_new(void);
    544 void	ht_free(struct hashtab *);
    545 int	ht_insrep2(struct hashtab *, const char *, const char *, void *, int);
    546 int	ht_insrep(struct hashtab *, const char *, void *, int);
    547 #define	ht_insert2(ht, nam1, nam2, val) ht_insrep2(ht, nam1, nam2, val, 0)
    548 #define	ht_insert(ht, nam, val) ht_insrep(ht, nam, val, 0)
    549 #define	ht_replace(ht, nam, val) ht_insrep(ht, nam, val, 1)
    550 int	ht_remove2(struct hashtab *, const char *, const char *);
    551 int	ht_remove(struct hashtab *, const char *);
    552 void	*ht_lookup2(struct hashtab *, const char *, const char *);
    553 void	*ht_lookup(struct hashtab *, const char *);
    554 void	initintern(void);
    555 const char *intern(const char *);
    556 typedef int (*ht_callback2)(const char *, const char *, void *, void *);
    557 typedef int (*ht_callback)(const char *, void *, void *);
    558 int	ht_enumerate2(struct hashtab *, ht_callback2, void *);
    559 int	ht_enumerate(struct hashtab *, ht_callback, void *);
    560 
    561 /* typed hash, named struct HT, whose type is string -> struct VT */
    562 #define DECLHASH(HT, VT) \
    563 	struct HT;							\
    564 	struct HT *HT##_create(void);					\
    565 	int HT##_insert(struct HT *, const char *, struct VT *);	\
    566 	int HT##_replace(struct HT *, const char *, struct VT *);	\
    567 	int HT##_remove(struct HT *, const char *);			\
    568 	struct VT *HT##_lookup(struct HT *, const char *);		\
    569 	int HT##_enumerate(struct HT *,					\
    570 			int (*)(const char *, struct VT *, void *),	\
    571 			void *)
    572 DECLHASH(nvhash, nvlist);
    573 DECLHASH(dlhash, defoptlist);
    574 
    575 /* lint.c */
    576 void	emit_instances(void);
    577 void	emit_options(void);
    578 void	emit_params(void);
    579 
    580 /* main.c */
    581 extern	int Mflag;
    582 extern	int Sflag;
    583 void	addoption(const char *, const char *);
    584 void	addfsoption(const char *);
    585 void	addmkoption(const char *, const char *);
    586 void	appendmkoption(const char *, const char *);
    587 void	appendcondmkoption(struct condexpr *, const char *, const char *);
    588 void	deffilesystem(struct nvlist *, struct nvlist *);
    589 void	defoption(const char *, struct defoptlist *, struct nvlist *);
    590 void	defflag(const char *, struct defoptlist *, struct nvlist *, int);
    591 void	defparam(const char *, struct defoptlist *, struct nvlist *, int);
    592 void	deloption(const char *, int);
    593 void	delfsoption(const char *, int);
    594 void	delmkoption(const char *, int);
    595 int	devbase_has_instances(struct devbase *, int);
    596 struct where *find_declared_option(const char *);
    597 struct defoptlist *find_declared_option_option(const char *name);
    598 int	deva_has_instances(struct deva *, int);
    599 void	setupdirs(void);
    600 void	fixmaxusers(void);
    601 void	fixmkoption(void);
    602 void	mkflagvar(struct defoptlist *);
    603 const char *strtolower(const char *);
    604 
    605 /* tests on option types */
    606 #define OPT_FSOPT(n)	(nvhash_lookup(deffstab, (n)) != NULL)
    607 #define OPT_DEFOPT(n)	(dlhash_lookup(defopttab, (n)) != NULL)
    608 #define OPT_DEFFLAG(n)	(dlhash_lookup(defflagtab, (n)) != NULL)
    609 #define OPT_DEFPARAM(n)	(dlhash_lookup(defparamtab, (n)) != NULL)
    610 #define OPT_OBSOLETE(n)	(dlhash_lookup(obsopttab, (n)) != NULL)
    611 #define DEFINED_OPTION(n) (find_declared_option((n)))
    612 
    613 /* main.c */
    614 void	logconfig_include(FILE *, const char *);
    615 
    616 /* mkdevsw.c */
    617 int	mkdevsw(void);
    618 
    619 /* mkheaders.c */
    620 int	mkheaders(void);
    621 int	moveifchanged(const char *, const char *);
    622 int	emitlocs(void);
    623 int	emitioconfh(void);
    624 
    625 /* mkioconf.c */
    626 int	mkioconf(void);
    627 
    628 /* mkmakefile.c */
    629 int	mkmakefile(void);
    630 
    631 /* mkswap.c */
    632 int	mkswap(void);
    633 
    634 /* pack.c */
    635 void	pack(void);
    636 
    637 /* scan.l */
    638 u_short	currentline(void);
    639 int	firstfile(const char *);
    640 void	package(const char *);
    641 int	include(const char *, int, int, int);
    642 extern int includedepth;
    643 
    644 /* sem.c, other than for yacc actions */
    645 void	initsem(void);
    646 int	onlist(struct nvlist *, void *);
    647 
    648 /* util.c */
    649 void	prefix_push(const char *);
    650 void	prefix_pop(void);
    651 void	buildprefix_push(const char *);
    652 void	buildprefix_pop(void);
    653 char	*sourcepath(const char *);
    654 extern	int dflag;
    655 #define	CFGDBG(n, ...) \
    656 	do { if ((dflag) >= (n)) cfgdbg(__VA_ARGS__); } while (0)
    657 void	cfgdbg(const char *, ...)			/* debug info */
    658      __printflike(1, 2);
    659 void	cfgwarn(const char *, ...)			/* immediate warns */
    660      __printflike(1, 2);
    661 void	cfgxwarn(const char *, int, const char *, ...)	/* delayed warns */
    662      __printflike(3, 4);
    663 void	cfgerror(const char *, ...)			/* immediate errs */
    664      __printflike(1, 2);
    665 void	cfgxerror(const char *, int, const char *, ...)	/* delayed errs */
    666      __printflike(3, 4);
    667 __dead void panic(const char *, ...)
    668      __printflike(1, 2);
    669 struct nvlist *newnv(const char *, const char *, void *, long long, struct nvlist *);
    670 void	nvfree(struct nvlist *);
    671 void	nvfreel(struct nvlist *);
    672 struct nvlist *nvcat(struct nvlist *, struct nvlist *);
    673 void	autogen_comment(FILE *, const char *);
    674 struct defoptlist *defoptlist_create(const char *, const char *, const char *);
    675 void defoptlist_destroy(struct defoptlist *);
    676 struct defoptlist *defoptlist_append(struct defoptlist *, struct defoptlist *);
    677 struct attrlist *attrlist_create(void);
    678 struct attrlist *attrlist_cons(struct attrlist *, struct attr *);
    679 void attrlist_destroy(struct attrlist *);
    680 void attrlist_destroyall(struct attrlist *);
    681 struct loclist *loclist_create(const char *, const char *, long long);
    682 void loclist_destroy(struct loclist *);
    683 struct condexpr *condexpr_create(enum condexpr_types);
    684 void condexpr_destroy(struct condexpr *);
    685 
    686 /* liby */
    687 void	yyerror(const char *);
    688 int	yylex(void);
    689