/* $NetBSD: config.h,v 1.56 2001/12/17 15:39:43 atatat Exp $ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This software was developed by the Computer Systems Engineering group * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and * contributed to Berkeley. * * All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Lawrence Berkeley Laboratories. * * 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. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. 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. * * from: @(#)config.h 8.1 (Berkeley) 6/6/93 */ /* * config.h: Global definitions for "config" */ #include #include #if !defined(MAKE_BOOTSTRAP) && defined(BSD) #include #include #endif #include #include #include /* These are really for MAKE_BOOTSTRAP but harmless. */ #ifndef __dead #define __dead #endif #ifndef _PATH_DEVNULL #define _PATH_DEVNULL "/dev/null" #endif #ifdef MAKE_BOOTSTRAP #undef dev_t #undef NODEV #undef major #undef minor #undef makedev #define dev_t int /* XXX: assumes int is 32 bits */ #define NODEV ((dev_t)-1) #define major(x) ((int)((((x) & 0x000fff00) >> 8))) #define minor(x) ((int)((((x) & 0xfff00000) >> 12) | \ (((x) & 0x000000ff) >> 0))) #define makedev(x,y) ((dev_t)((((x) << 8) & 0x000fff00) | \ (((y) << 12) & 0xfff00000) | \ (((y) << 0) & 0x000000ff))) #define __attribute__(x) #endif /* MAKE_BOOTSTRAP */ #undef setprogname #undef getprogname extern const char *progname; #define setprogname(s) ((void)(progname = (s))) #define getprogname() (progname) #define ARRCHR '#' /* * Name/value lists. Values can be strings or pointers and/or can carry * integers. The names can be NULL, resulting in simple value lists. */ struct nvlist { struct nvlist *nv_next; const char *nv_name; union { const char *un_str; void *un_ptr; } nv_un; #define nv_str nv_un.un_str #define nv_ptr nv_un.un_ptr int nv_int; int nv_ifunit; /* XXX XXX XXX */ int nv_flags; #define NV_DEPENDED 1 }; /* * Kernel configurations. */ struct config { struct config *cf_next; /* linked list */ const char *cf_name; /* "vmunix" */ int cf_lineno; /* source line */ const char *cf_fstype; /* file system type */ struct nvlist *cf_root; /* "root on ra0a" */ struct nvlist *cf_swap; /* "swap on ra0b and ra1b" */ struct nvlist *cf_dump; /* "dumps on ra0b" */ }; /* * Attributes. These come in three flavors: "plain", "device class," * and "interface". Plain attributes (e.g., "ether") simply serve * to pull in files. Device class attributes are like plain * attributes, but additionally specify a device class (e.g., the * "disk" device class attribute specifies that devices with the * attribute belong to the "DV_DISK" class) and are mutually exclusive. * Interface attributes (e.g., "scsi") carry three lists: locators, * child devices, and references. The locators are those things * that must be specified in order to configure a device instance * using this attribute (e.g., "tg0 at scsi0"). The a_devs field * lists child devices that can connect here (e.g., "tg"s), while * the a_refs are parents that carry the attribute (e.g., actual * SCSI host adapter drivers such as the SPARC "esp"). */ struct attr { const char *a_name; /* name of this attribute */ int a_iattr; /* true => allows children */ const char *a_devclass; /* device class described */ struct nvlist *a_locs; /* locators required */ int a_loclen; /* length of above list */ struct nvlist *a_devs; /* children */ struct nvlist *a_refs; /* parents */ }; /* * The "base" part (struct devbase) of a device ("uba", "sd"; but not * "uba2" or "sd0"). It may be found "at" one or more attributes, * including "at root" (this is represented by a NULL attribute), as * specified by the device attachments (struct deva). * * Each device may also export attributes. If any provide an output * interface (e.g., "esp" provides "scsi"), other devices (e.g., * "tg"s) can be found at instances of this one (e.g., "esp"s). * Such a connection must provide locators as specified by that * interface attribute (e.g., "target"). The base device can * export both output (aka `interface') attributes, as well as * import input (`plain') attributes. Device attachments may * only import input attributes; it makes no sense to have a * specific attachment export a new interface to other devices. * * Each base carries a list of instances (via d_ihead). Note that this * list "skips over" aliases; those must be found through the instances * themselves. Each base also carries a list of possible attachments, * each of which specify a set of devices that the device can attach * to, as well as the device instances that are actually using that * attachment. */ struct devbase { const char *d_name; /* e.g., "sd" */ struct devbase *d_next; /* linked list */ int d_isdef; /* set once properly defined */ int d_ispseudo; /* is a pseudo-device */ int d_major; /* used for "root on sd0", e.g. */ struct nvlist *d_attrs; /* attributes, if any */ int d_umax; /* highest unit number + 1 */ struct devi *d_ihead; /* first instance, if any */ struct devi **d_ipp; /* used for tacking on more instances */ struct deva *d_ahead; /* first attachment, if any */ struct deva **d_app; /* used for tacking on attachments */ struct attr *d_classattr; /* device class attribute (if any) */ }; struct deva { const char *d_name; /* name of attachment, e.g. "com_isa" */ struct deva *d_next; /* linked list */ struct deva *d_bsame; /* list on same base */ int d_isdef; /* set once properly defined */ struct devbase *d_devbase; /* the base device */ struct nvlist *d_atlist; /* e.g., "at tg" (attr list) */ struct nvlist *d_attrs; /* attributes, if any */ struct devi *d_ihead; /* first instance, if any */ struct devi **d_ipp; /* used for tacking on more instances */ }; /* * An "instance" of a device. The same instance may be listed more * than once, e.g., "xx0 at isa? port FOO" + "xx0 at isa? port BAR". * * After everything has been read in and verified, the devi's are * "packed" to collect all the information needed to generate ioconf.c. * In particular, we try to collapse multiple aliases into a single entry. * We then assign each "primary" (non-collapsed) instance a cfdata index. * Note that there may still be aliases among these. */ struct devi { /* created while parsing config file */ const char *i_name; /* e.g., "sd0" */ int i_unit; /* unit from name, e.g., 0 */ struct devbase *i_base;/* e.g., pointer to "sd" base */ struct devi *i_next; /* list of all instances */ struct devi *i_bsame; /* list on same base */ struct devi *i_asame; /* list on same base attachment */ struct devi *i_alias; /* other aliases of this instance */ const char *i_at; /* where this is "at" (NULL if at root) */ struct attr *i_atattr; /* attr that allowed attach */ struct devbase *i_atdev;/* if "at ", else NULL */ struct deva *i_atdeva; const char **i_locs; /* locators (as given by i_atattr) */ int i_atunit; /* unit from "at" */ int i_cfflags; /* flags from config line */ int i_lineno; /* line # in config, for later errors */ /* created during packing or ioconf.c generation */ /* i_loclen via i_atattr->a_loclen */ short i_collapsed; /* set => this alias no longer needed */ short i_cfindex; /* our index in cfdata */ short i_pvlen; /* number of parents */ short i_pvoff; /* offset in parents.vec */ short i_locoff; /* offset in locators.vec */ struct devi **i_parents;/* the parents themselves */ }; /* special units */ #define STAR (-1) /* unit number for, e.g., "sd*" */ #define WILD (-2) /* unit number for, e.g., "sd?" */ /* * Files. Each file is either standard (always included) or optional, * depending on whether it has names on which to *be* optional. The * options field (fi_optx) is actually an expression tree, with nodes * for OR, AND, and NOT, as well as atoms (words) representing some * particular option. The node type is stored in the nv_int field. * Subexpressions appear in the `next' field; for the binary operators * AND and OR, the left subexpression is first stored in the nv_ptr field. * * For any file marked as needs-count or needs-flag, fixfiles() will * build fi_optf, a `flat list' of the options with nv_int fields that * contain counts or `need' flags; this is used in mkheaders(). */ struct files { struct files *fi_next; /* linked list */ const char *fi_srcfile; /* the name of the "files" file that got us */ u_short fi_srcline; /* and the line number */ u_char fi_flags; /* as below */ char fi_lastc; /* last char from path */ const char *fi_path; /* full file path */ const char *fi_tail; /* name, i.e., strrchr(fi_path, '/') + 1 */ const char *fi_base; /* tail minus ".c" (or whatever) */ const char *fi_prefix; /* any file prefix */ struct nvlist *fi_optx;/* options expression */ struct nvlist *fi_optf;/* flattened version of above, if needed */ const char *fi_mkrule; /* special make rule, if any */ }; /* flags */ #define FI_SEL 0x01 /* selected */ #define FI_NEEDSCOUNT 0x02 /* needs-count */ #define FI_NEEDSFLAG 0x04 /* needs-flag */ #define FI_HIDDEN 0x08 /* obscured by other(s), base names overlap */ /* * Objects and libraries. This allows precompiled object and library * files (e.g. binary-only device drivers) to be linked in. */ struct objects { struct objects *oi_next; /* linked list */ const char *oi_srcfile; /* the name of the "objects" file that got us */ u_short oi_srcline; /* and the line number */ u_char oi_flags; /* as below */ char oi_lastc; /* last char from path */ const char *oi_path; /* full object path */ const char *oi_prefix; /* any file prefix */ struct nvlist *oi_optx;/* options expression */ struct nvlist *oi_optf;/* flattened version of above, if needed */ }; /* flags */ #define OI_SEL 0x01 /* selected */ #define OI_NEEDSFLAG 0x02 /* needs-flag */ #define FX_ATOM 0 /* atom (in nv_name) */ #define FX_NOT 1 /* NOT expr (subexpression in nv_next) */ #define FX_AND 2 /* AND expr (lhs in nv_ptr, rhs in nv_next) */ #define FX_OR 3 /* OR expr (lhs in nv_ptr, rhs in nv_next) */ /* * File/object prefixes. These are arranged in a stack, and affect * the behavior of the source path. */ struct prefix { struct prefix *pf_next; /* next prefix in stack */ const char *pf_prefix; /* the actual prefix */ }; /* * Hash tables look up name=value pairs. The pointer value of the name * is assumed to be constant forever; this can be arranged by interning * the name. (This is fairly convenient since our lexer does this for * all identifier-like strings---it has to save them anyway, lest yacc's * look-ahead wipe out the current one.) */ struct hashtab; const char *conffile; /* source file, e.g., "GENERIC.sparc" */ const char *machine; /* machine type, e.g., "sparc" or "sun3" */ const char *machinearch; /* machine arch, e.g., "sparc" or "m68k" */ struct nvlist *machinesubarches; /* machine subarches, e.g., "sun68k" or "hpc" */ const char *srcdir; /* path to source directory (rel. to build) */ const char *builddir; /* path to build directory */ const char *defbuilddir; /* default build directory */ const char *ident; /* kernel "ident"ification string */ int errors; /* counts calls to error() */ int minmaxusers; /* minimum "maxusers" parameter */ int defmaxusers; /* default "maxusers" parameter */ int maxmaxusers; /* default "maxusers" parameter */ int maxusers; /* configuration's "maxusers" parameter */ int maxpartitions; /* configuration's "maxpartitions" parameter */ struct nvlist *options; /* options */ struct nvlist *fsoptions; /* filesystems */ struct nvlist *mkoptions; /* makeoptions */ struct hashtab *devbasetab; /* devbase lookup */ struct hashtab *devatab; /* devbase attachment lookup */ struct hashtab *selecttab; /* selects things that are "optional foo" */ struct hashtab *needcnttab; /* retains names marked "needs-count" */ struct hashtab *opttab; /* table of configured options */ struct hashtab *fsopttab; /* table of configured file systems */ struct hashtab *defopttab; /* options that have been "defopt"'d */ struct hashtab *defflagtab; /* options that have been "defflag"'d */ struct hashtab *defparamtab; /* options that have been "defparam"'d */ struct hashtab *deffstab; /* defined file systems */ struct hashtab *optfiletab; /* "defopt"'d option .h files */ struct hashtab *attrtab; /* attributes (locators, etc.) */ struct devbase *allbases; /* list of all devbase structures */ struct deva *alldevas; /* list of all devbase attachment structures */ struct config *allcf; /* list of configured kernels */ struct devi *alldevi; /* list of all instances */ struct devi *allpseudo; /* list of all pseudo-devices */ int ndevi; /* number of devi's (before packing) */ int npseudo; /* number of pseudo's */ struct files *allfiles; /* list of all kernel source files */ struct objects *allobjects; /* list of all kernel object and library files */ struct prefix *prefixes; /* prefix stack */ struct prefix *allprefixes; /* all prefixes used (after popped) */ struct devi **packed; /* arrayified table for packed devi's */ int npacked; /* size of packed table, <= ndevi */ struct { /* pv[] table for config */ short *vec; int used; } parents; struct { /* loc[] table for config */ const char **vec; int used; } locators; /* files.c */ void initfiles(void); void checkfiles(void); int fixfiles(void); /* finalize */ int fixobjects(void); void addfile(const char *, struct nvlist *, int, const char *); void addobject(const char *, struct nvlist *, int); /* hash.c */ struct hashtab *ht_new(void); int ht_insrep(struct hashtab *, const char *, void *, int); #define ht_insert(ht, nam, val) ht_insrep(ht, nam, val, 0) #define ht_replace(ht, nam, val) ht_insrep(ht, nam, val, 1) void *ht_lookup(struct hashtab *, const char *); void initintern(void); const char *intern(const char *); typedef int (*ht_callback)(const char *, void *, void *); int ht_enumerate(struct hashtab *, ht_callback, void *); /* main.c */ void addoption(const char *name, const char *value); void addfsoption(const char *name); void addmkoption(const char *name, const char *value); void deffilesystem(const char *fname, struct nvlist *fses); void defoption(const char *fname, struct nvlist *opts, struct nvlist *deps); void defflag(const char *fname, struct nvlist *opts, struct nvlist *deps); void defparam(const char *fname, struct nvlist *opts, struct nvlist *deps); int devbase_has_instances(struct devbase *, int); struct nvlist * find_declared_option(const char *name); int deva_has_instances(struct deva *, int); void setupdirs(void); /* tests on option types */ #define OPT_FSOPT(n) (ht_lookup(deffstab, (n)) != NULL) #define OPT_DEFOPT(n) (ht_lookup(defopttab, (n)) != NULL) #define OPT_DEFFLAG(n) (ht_lookup(defflagtab, (n)) != NULL) #define OPT_DEFPARAM(n) (ht_lookup(defparamtab, (n)) != NULL) #define DEFINED_OPTION(n) (find_declared_option((n)) != NULL) /* main.c */ void logconfig_include(FILE *, const char *); /* mkheaders.c */ int mkheaders(void); /* mkioconf.c */ int mkioconf(void); /* mkmakefile.c */ int mkmakefile(void); /* mkswap.c */ int mkswap(void); /* pack.c */ void pack(void); /* scan.l */ int currentline(void); int firstfile(const char *); int include(const char *, int, int, int); /* sem.c, other than for yacc actions */ void initsem(void); /* util.c */ void *emalloc(size_t); void *erealloc(void *, size_t); char *estrdup(const char *); void prefix_push(const char *); void prefix_pop(void); char *sourcepath(const char *); void warn(const char *, ...) /* immediate warns */ __attribute__((__format__(__printf__, 1, 2))); void error(const char *, ...) /* immediate errs */ __attribute__((__format__(__printf__, 1, 2))); void xerror(const char *, int, const char *, ...) /* delayed errs */ __attribute__((__format__(__printf__, 3, 4))); __dead void panic(const char *, ...) __attribute__((__format__(__printf__, 1, 2))); struct nvlist *newnv(const char *, const char *, void *, int, struct nvlist *); void nvfree(struct nvlist *); void nvfreel(struct nvlist *); /* liby */ void yyerror(const char *); int yylex(void);