1/*	$NetBSD$	*/
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 _PATH_DEVNULL
69#define _PATH_DEVNULL "/dev/null"
70#endif
71
72#ifdef	MAKE_BOOTSTRAP
73#undef	dev_t
74#undef	devmajor_t
75#undef	devminor_t
76#undef	NODEV
77#undef	NODEVMAJOR
78#undef	major
79#undef	minor
80#undef	makedev
81#define	dev_t		unsigned int	/* XXX: assumes int is 32 bits */
82#define	NODEV		((dev_t)-1)
83#define devmajor_t	int
84#define devminor_t	int
85#define NODEVMAJOR	(-1)
86#define major(x)        ((devmajor_t)((((x) & 0x000fff00) >>  8)))
87#define minor(x)        ((devminor_t)((((x) & 0xfff00000) >> 12) | \
88			       (((x) & 0x000000ff) >>  0)))
89#define makedev(x,y)    ((dev_t)((((x) <<  8) & 0x000fff00) | \
90                                 (((y) << 12) & 0xfff00000) | \
91                                 (((y) <<  0) & 0x000000ff)))
92#define __attribute__(x)
93#endif	/* MAKE_BOOTSTRAP */
94
95#undef setprogname
96#undef getprogname
97extern const char *progname;
98#define	setprogname(s)	((void)(progname = (s)))
99#define	getprogname()	(progname)
100
101#define ARRCHR '#'
102
103/*
104 * The next two lines define the current version of the config(1) binary,
105 * and the minimum version of the configuration files it supports.
106 */
107#define CONFIG_VERSION		20100430
108#define CONFIG_MINVERSION	0
109
110/*
111 * Name/value lists.  Values can be strings or pointers and/or can carry
112 * integers.  The names can be NULL, resulting in simple value lists.
113 */
114struct nvlist {
115	struct nvlist	*nv_next;
116	const char	*nv_name;
117	const char	*nv_str;
118	void		*nv_ptr;
119	long long	nv_num;
120	int		nv_ifunit;		/* XXX XXX XXX */
121	int		nv_flags;
122#define	NV_DEPENDED	1
123#define	NV_OBSOLETE	2
124};
125
126/*
127 * Kernel configurations.
128 */
129struct config {
130	TAILQ_ENTRY(config) cf_next;
131	const char *cf_name;		/* "netbsd" */
132	int	cf_lineno;		/* source line */
133	const char *cf_fstype;		/* file system type */
134	struct	nvlist *cf_root;	/* "root on ra0a" */
135	struct	nvlist *cf_swap;	/* "swap on ra0b and ra1b" */
136	struct	nvlist *cf_dump;	/* "dumps on ra0b" */
137};
138
139/*
140 * Attributes.  These come in three flavors: "plain", "device class,"
141 * and "interface".  Plain attributes (e.g., "ether") simply serve
142 * to pull in files.  Device class attributes are like plain
143 * attributes, but additionally specify a device class (e.g., the
144 * "disk" device class attribute specifies that devices with the
145 * attribute belong to the "DV_DISK" class) and are mutually exclusive.
146 * Interface attributes (e.g., "scsi") carry three lists: locators,
147 * child devices, and references.  The locators are those things
148 * that must be specified in order to configure a device instance
149 * using this attribute (e.g., "tg0 at scsi0").  The a_devs field
150 * lists child devices that can connect here (e.g., "tg"s), while
151 * the a_refs are parents that carry the attribute (e.g., actual
152 * SCSI host adapter drivers such as the SPARC "esp").
153 */
154struct attr {
155	const char *a_name;		/* name of this attribute */
156	int	a_iattr;		/* true => allows children */
157	const char *a_devclass;		/* device class described */
158	struct	nvlist *a_locs;		/* locators required */
159	int	a_loclen;		/* length of above list */
160	struct	nvlist *a_devs;		/* children */
161	struct	nvlist *a_refs;		/* parents */
162	struct	nvlist *a_deps;		/* we depend on these other attrs */
163	int	a_expanding;		/* to detect cycles in attr graph */
164};
165
166/*
167 * Parent specification.  Multiple device instances may share a
168 * given parent spec.  Parent specs are emitted only if there are
169 * device instances which actually reference it.
170 */
171struct pspec {
172	TAILQ_ENTRY(pspec) p_list;	/* link on parent spec list */
173	struct	attr *p_iattr;		/* interface attribute of parent */
174	struct	devbase *p_atdev;	/* optional parent device base */
175	int	p_atunit;		/* optional parent device unit */
176	struct	nvlist *p_devs;		/* children using it */
177	int	p_inst;			/* parent spec instance */
178	int	p_active;		/* parent spec is actively used */
179};
180
181/*
182 * The "base" part (struct devbase) of a device ("uba", "sd"; but not
183 * "uba2" or "sd0").  It may be found "at" one or more attributes,
184 * including "at root" (this is represented by a NULL attribute), as
185 * specified by the device attachments (struct deva).
186 *
187 * Each device may also export attributes.  If any provide an output
188 * interface (e.g., "esp" provides "scsi"), other devices (e.g.,
189 * "tg"s) can be found at instances of this one (e.g., "esp"s).
190 * Such a connection must provide locators as specified by that
191 * interface attribute (e.g., "target").  The base device can
192 * export both output (aka `interface') attributes, as well as
193 * import input (`plain') attributes.  Device attachments may
194 * only import input attributes; it makes no sense to have a
195 * specific attachment export a new interface to other devices.
196 *
197 * Each base carries a list of instances (via d_ihead).  Note that this
198 * list "skips over" aliases; those must be found through the instances
199 * themselves.  Each base also carries a list of possible attachments,
200 * each of which specify a set of devices that the device can attach
201 * to, as well as the device instances that are actually using that
202 * attachment.
203 */
204struct devbase {
205	const char *d_name;		/* e.g., "sd" */
206	TAILQ_ENTRY(devbase) d_next;
207	int	d_isdef;		/* set once properly defined */
208	int	d_ispseudo;		/* is a pseudo-device */
209	devmajor_t d_major;		/* used for "root on sd0", e.g. */
210	struct	nvlist *d_attrs;	/* attributes, if any */
211	int	d_umax;			/* highest unit number + 1 */
212	struct	devi *d_ihead;		/* first instance, if any */
213	struct	devi **d_ipp;		/* used for tacking on more instances */
214	struct	deva *d_ahead;		/* first attachment, if any */
215	struct	deva **d_app;		/* used for tacking on attachments */
216	struct	attr *d_classattr;	/* device class attribute (if any) */
217};
218
219struct deva {
220	const char *d_name;		/* name of attachment, e.g. "com_isa" */
221	TAILQ_ENTRY(deva) d_next;	/* list of all instances */
222	struct	deva *d_bsame;		/* list on same base */
223	int	d_isdef;		/* set once properly defined */
224	struct	devbase *d_devbase;	/* the base device */
225	struct	nvlist *d_atlist;	/* e.g., "at tg" (attr list) */
226	struct	nvlist *d_attrs;	/* attributes, if any */
227	struct	devi *d_ihead;		/* first instance, if any */
228	struct	devi **d_ipp;		/* used for tacking on more instances */
229};
230
231/*
232 * An "instance" of a device.  The same instance may be listed more
233 * than once, e.g., "xx0 at isa? port FOO" + "xx0 at isa? port BAR".
234 *
235 * After everything has been read in and verified, the devi's are
236 * "packed" to collect all the information needed to generate ioconf.c.
237 * In particular, we try to collapse multiple aliases into a single entry.
238 * We then assign each "primary" (non-collapsed) instance a cfdata index.
239 * Note that there may still be aliases among these.
240 */
241struct devi {
242	/* created while parsing config file */
243	const char *i_name;	/* e.g., "sd0" */
244	int	i_unit;		/* unit from name, e.g., 0 */
245	struct	devbase *i_base;/* e.g., pointer to "sd" base */
246	TAILQ_ENTRY(devi) i_next; /* list of all instances */
247	struct	devi *i_bsame;	/* list on same base */
248	struct	devi *i_asame;	/* list on same base attachment */
249	struct	devi *i_alias;	/* other aliases of this instance */
250	const char *i_at;	/* where this is "at" (NULL if at root) */
251	struct	pspec *i_pspec;	/* parent spec (NULL if at root) */
252	struct	deva *i_atdeva;
253	const char **i_locs;	/* locators (as given by pspec's iattr) */
254	int	i_cfflags;	/* flags from config line */
255	int	i_lineno;	/* line # in config, for later errors */
256	const char *i_srcfile;	/* file it appears in */
257	int	i_level;	/* position between negated instances */
258	int	i_active;
259#define	DEVI_ORPHAN	0	/* instance has no active parent */
260#define	DEVI_ACTIVE	1	/* instance has an active parent */
261#define	DEVI_IGNORED	2	/* instance's parent has been removed */
262#define DEVI_BROKEN	3	/* instance is broken (syntax error) */
263	int	i_pseudoroot;	/* instance is pseudoroot */
264
265	/* created during packing or ioconf.c generation */
266	short	i_collapsed;	/* set => this alias no longer needed */
267	short	i_cfindex;	/* our index in cfdata */
268	short	i_locoff;	/* offset in locators.vec */
269
270};
271/* special units */
272#define	STAR	(-1)		/* unit number for, e.g., "sd*" */
273#define	WILD	(-2)		/* unit number for, e.g., "sd?" */
274
275/*
276 * Files or objects.  This structure defines the common fields
277 * between the two.
278 */
279struct filetype
280{
281	const char *fit_srcfile;	/* the name of the "files" file that got us */
282	u_short	fit_srcline;	/* and the line number */
283	u_char	fit_flags;	/* as below */
284	char	fit_lastc;	/* last char from path */
285	const char *fit_path;	/* full file path */
286	const char *fit_prefix;	/* any file prefix */
287};
288/* Anything less than 0x10 is sub-type specific */
289#define FIT_NOPROLOGUE  0x10    /* Don't prepend $S/ */
290#define FIT_FORCESELECT 0x20    /* Always include this file */
291
292/*
293 * Files.  Each file is either standard (always included) or optional,
294 * depending on whether it has names on which to *be* optional.  The
295 * options field (fi_optx) is actually an expression tree, with nodes
296 * for OR, AND, and NOT, as well as atoms (words) representing some
297 * particular option.  The node type is stored in the nv_num field.
298 * Subexpressions appear in the `next' field; for the binary operators
299 * AND and OR, the left subexpression is first stored in the nv_ptr field.
300 *
301 * For any file marked as needs-count or needs-flag, fixfiles() will
302 * build fi_optf, a `flat list' of the options with nv_num fields that
303 * contain counts or `need' flags; this is used in mkheaders().
304 */
305struct files {
306	struct filetype fi_fit;
307	TAILQ_ENTRY(files) fi_next;
308	const  char *fi_tail;	/* name, i.e., strrchr(fi_path, '/') + 1 */
309	const  char *fi_base;	/* tail minus ".c" (or whatever) */
310	struct nvlist *fi_optx; /* options expression */
311	struct nvlist *fi_optf; /* flattened version of above, if needed */
312	const  char *fi_mkrule;	/* special make rule, if any */
313};
314#define fi_srcfile fi_fit.fit_srcfile
315#define fi_srcline fi_fit.fit_srcline
316#define fi_flags   fi_fit.fit_flags
317#define fi_lastc   fi_fit.fit_lastc
318#define fi_path    fi_fit.fit_path
319#define fi_prefix  fi_fit.fit_prefix
320
321/* flags */
322#define	FI_SEL		0x01	/* selected */
323#define	FI_NEEDSCOUNT	0x02	/* needs-count */
324#define	FI_NEEDSFLAG	0x04	/* needs-flag */
325#define	FI_HIDDEN	0x08	/* obscured by other(s), base names overlap */
326
327/*
328 * Objects and libraries.  This allows precompiled object and library
329 * files (e.g. binary-only device drivers) to be linked in.
330 */
331struct objects {
332	struct  filetype oi_fit;
333	TAILQ_ENTRY(objects) oi_next;
334	struct  nvlist *oi_optx;/* options expression */
335	struct  nvlist *oi_optf;/* flattened version of above, if needed */
336};
337
338#define oi_srcfile oi_fit.fit_srcfile
339#define oi_srcline oi_fit.fit_srcline
340#define oi_flags   oi_fit.fit_flags
341#define oi_lastc   oi_fit.fit_lastc
342#define oi_path    oi_fit.fit_path
343#define oi_prefix  oi_fit.fit_prefix
344
345/* flags */
346#define	OI_SEL		0x01	/* selected */
347#define	OI_NEEDSFLAG	0x02	/* needs-flag */
348
349#define	FX_ATOM		0	/* atom (in nv_name) */
350#define	FX_NOT		1	/* NOT expr (subexpression in nv_next) */
351#define	FX_AND		2	/* AND expr (lhs in nv_ptr, rhs in nv_next) */
352#define	FX_OR		3	/* OR expr (lhs in nv_ptr, rhs in nv_next) */
353
354/*
355 * File/object prefixes.  These are arranged in a stack, and affect
356 * the behavior of the source path.
357 */
358struct prefix {
359	SLIST_ENTRY(prefix)	pf_next;	/* next prefix in stack */
360	const char		*pf_prefix;	/* the actual prefix */
361};
362
363/*
364 * Device major informations.
365 */
366struct devm {
367	TAILQ_ENTRY(devm) dm_next;
368	const char	*dm_srcfile;	/* the name of the "majors" file */
369	u_short		dm_srcline;	/* the line number */
370	const char	*dm_name;	/* [bc]devsw name */
371	devmajor_t	dm_cmajor;	/* character major */
372	devmajor_t	dm_bmajor;	/* block major */
373	struct nvlist	*dm_opts;	/* options */
374	struct nvlist	*dm_devnodes;	/* information on /dev nodes */
375};
376
377/*
378 * Hash tables look up name=value pairs.  The pointer value of the name
379 * is assumed to be constant forever; this can be arranged by interning
380 * the name.  (This is fairly convenient since our lexer does this for
381 * all identifier-like strings---it has to save them anyway, lest yacc's
382 * look-ahead wipe out the current one.)
383 */
384struct hashtab;
385
386int lkmmode;
387const char *conffile;		/* source file, e.g., "GENERIC.sparc" */
388const char *machine;		/* machine type, e.g., "sparc" or "sun3" */
389const char *machinearch;	/* machine arch, e.g., "sparc" or "m68k" */
390struct	nvlist *machinesubarches;
391				/* machine subarches, e.g., "sun68k" or "hpc" */
392const char *ioconfname;		/* ioconf name, mutually exclusive to machine */
393const char *srcdir;		/* path to source directory (rel. to build) */
394const char *builddir;		/* path to build directory */
395const char *defbuilddir;	/* default build directory */
396const char *ident;		/* kernel "ident"ification string */
397int	errors;			/* counts calls to error() */
398int	minmaxusers;		/* minimum "maxusers" parameter */
399int	defmaxusers;		/* default "maxusers" parameter */
400int	maxmaxusers;		/* default "maxusers" parameter */
401int	maxusers;		/* configuration's "maxusers" parameter */
402int	maxpartitions;		/* configuration's "maxpartitions" parameter */
403int	version;		/* version of the configuration file */
404struct	nvlist *options;	/* options */
405struct	nvlist *fsoptions;	/* filesystems */
406struct	nvlist *mkoptions;	/* makeoptions */
407struct	nvlist *appmkoptions;	/* appending mkoptions */
408struct	nvlist *condmkoptions;	/* conditional makeoption table */
409struct	hashtab *devbasetab;	/* devbase lookup */
410struct	hashtab *devroottab;	/* attach at root lookup */
411struct	hashtab *devatab;	/* devbase attachment lookup */
412struct	hashtab *devitab;	/* device instance lookup */
413struct	hashtab *deaddevitab;	/* removed instances lookup */
414struct	hashtab *selecttab;	/* selects things that are "optional foo" */
415struct	hashtab *needcnttab;	/* retains names marked "needs-count" */
416struct	hashtab *opttab;	/* table of configured options */
417struct	hashtab *fsopttab;	/* table of configured file systems */
418struct	hashtab *defopttab;	/* options that have been "defopt"'d */
419struct	hashtab *defflagtab;	/* options that have been "defflag"'d */
420struct	hashtab *defparamtab;	/* options that have been "defparam"'d */
421struct	hashtab *defoptlint;	/* lint values for options */
422struct	hashtab *deffstab;	/* defined file systems */
423struct	hashtab *optfiletab;	/* "defopt"'d option .h files */
424struct	hashtab *attrtab;	/* attributes (locators, etc.) */
425struct	hashtab *bdevmtab;	/* block devm lookup */
426struct	hashtab *cdevmtab;	/* character devm lookup */
427
428TAILQ_HEAD(, devbase)	allbases;	/* list of all devbase structures */
429TAILQ_HEAD(, deva)	alldevas;	/* list of all devbase attachments */
430TAILQ_HEAD(conftq, config) allcf;	/* list of configured kernels */
431TAILQ_HEAD(, devi)	alldevi,	/* list of all instances */
432			allpseudo;	/* list of all pseudo-devices */
433TAILQ_HEAD(, devm)	alldevms;	/* list of all device-majors */
434TAILQ_HEAD(, pspec)	allpspecs;	/* list of all parent specs */
435int	ndevi;				/* number of devi's (before packing) */
436int	npspecs;			/* number of parent specs */
437devmajor_t maxbdevm;			/* max number of block major */
438devmajor_t maxcdevm;			/* max number of character major */
439int	do_devsw;			/* 0 if pre-devsw config */
440int	oktopackage;			/* 0 before setmachine() */
441int	devilevel;			/* used for devi->i_level */
442
443TAILQ_HEAD(, files)	allfiles;	/* list of all kernel source files */
444TAILQ_HEAD(, objects)	allobjects;	/* list of all kernel object and
445					   library files */
446
447SLIST_HEAD(, prefix)	prefixes,	/* prefix stack */
448			allprefixes;	/* all prefixes used (after popped) */
449SLIST_HEAD(, prefix)	curdirs;	/* curdir stack */
450
451struct	devi **packed;		/* arrayified table for packed devi's */
452size_t	npacked;		/* size of packed table, <= ndevi */
453
454struct {			/* loc[] table for config */
455	const char **vec;
456	int	used;
457} locators;
458
459struct numconst {
460	int64_t	val;
461	int fmt;
462};
463
464/* files.c */
465void	initfiles(void);
466void	checkfiles(void);
467int	fixfiles(void);		/* finalize */
468int	fixobjects(void);
469int	fixdevsw(void);
470void	addfile(const char *, struct nvlist *, int, const char *);
471void	addobject(const char *, struct nvlist *, int);
472int	expr_eval(struct nvlist *, int (*)(const char *, void *), void *);
473void	expr_free(struct nvlist *);
474
475/* hash.c */
476struct	hashtab *ht_new(void);
477void	ht_free(struct hashtab *);
478int	ht_insrep(struct hashtab *, const char *, void *, int);
479#define	ht_insert(ht, nam, val) ht_insrep(ht, nam, val, 0)
480#define	ht_replace(ht, nam, val) ht_insrep(ht, nam, val, 1)
481int	ht_remove(struct hashtab *, const char *);
482void	*ht_lookup(struct hashtab *, const char *);
483void	initintern(void);
484const char *intern(const char *);
485typedef int (*ht_callback)(const char *, void *, void *);
486int	ht_enumerate(struct hashtab *, ht_callback, void *);
487
488/* lint.c */
489void	emit_instances(void);
490void	emit_options(void);
491void	emit_params(void);
492
493/* main.c */
494void	addoption(const char *, const char *);
495void	addfsoption(const char *);
496void	addmkoption(const char *, const char *);
497void	appendmkoption(const char *, const char *);
498void	appendcondmkoption(struct nvlist *, const char *, const char *);
499void	deffilesystem(struct nvlist *, struct nvlist *);
500void	defoption(const char *, struct nvlist *, struct nvlist *);
501void	defflag(const char *, struct nvlist *, struct nvlist *, int);
502void	defparam(const char *, struct nvlist *, struct nvlist *, int);
503void	deloption(const char *);
504void	delfsoption(const char *);
505void	delmkoption(const char *);
506int	devbase_has_instances(struct devbase *, int);
507struct nvlist * find_declared_option(const char *);
508int	deva_has_instances(struct deva *, int);
509void	setupdirs(void);
510const char *strtolower(const char *);
511
512/* tests on option types */
513#define OPT_FSOPT(n)	(ht_lookup(deffstab, (n)) != NULL)
514#define OPT_DEFOPT(n)	(ht_lookup(defopttab, (n)) != NULL)
515#define OPT_DEFFLAG(n)	(ht_lookup(defflagtab, (n)) != NULL)
516#define OPT_DEFPARAM(n)	(ht_lookup(defparamtab, (n)) != NULL)
517#define OPT_OBSOLETE(n)	(ht_lookup(obsopttab, (n)) != NULL)
518#define DEFINED_OPTION(n) (find_declared_option((n)) != NULL)
519
520/* main.c */
521void	logconfig_include(FILE *, const char *);
522
523/* mkdevsw.c */
524int	mkdevsw(void);
525
526/* mkheaders.c */
527int	mkheaders(void);
528int	moveifchanged(const char *, const char *);
529int	emitlocs(void);
530int	emitioconfh(void);
531
532/* mkioconf.c */
533int	mkioconf(void);
534
535/* mkmakefile.c */
536int	mkmakefile(void);
537
538/* mkswap.c */
539int	mkswap(void);
540
541/* pack.c */
542void	pack(void);
543
544/* scan.l */
545int	currentline(void);
546int	firstfile(const char *);
547void	package(const char *);
548int	include(const char *, int, int, int);
549
550/* sem.c, other than for yacc actions */
551void	initsem(void);
552int	onlist(struct nvlist *, void *);
553
554/* util.c */
555void	prefix_push(const char *);
556void	prefix_pop(void);
557char	*sourcepath(const char *);
558void	cfgwarn(const char *, ...)			/* immediate warns */
559     __attribute__((__format__(__printf__, 1, 2)));
560void	cfgxwarn(const char *, int, const char *, ...)	/* delayed warns */
561     __attribute__((__format__(__printf__, 3, 4)));
562void	cfgerror(const char *, ...)			/* immediate errs */
563     __attribute__((__format__(__printf__, 1, 2)));
564void	cfgxerror(const char *, int, const char *, ...)	/* delayed errs */
565     __attribute__((__format__(__printf__, 3, 4)));
566__dead void panic(const char *, ...)
567     __attribute__((__format__(__printf__, 1, 2)));
568struct nvlist *newnv(const char *, const char *, void *, long long, struct nvlist *);
569void	nvfree(struct nvlist *);
570void	nvfreel(struct nvlist *);
571struct nvlist *nvcat(struct nvlist *, struct nvlist *);
572void	autogen_comment(FILE *, const char *);
573
574/* liby */
575void	yyerror(const char *);
576int	yylex(void);
577