make.h revision 1.93
1 /* $NetBSD: make.h,v 1.93 2014/07/16 15:33:41 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1988, 1989, 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Adam de Boor. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * from: @(#)make.h 8.3 (Berkeley) 6/13/95 35 */ 36 37 /* 38 * Copyright (c) 1989 by Berkeley Softworks 39 * All rights reserved. 40 * 41 * This code is derived from software contributed to Berkeley by 42 * Adam de Boor. 43 * 44 * Redistribution and use in source and binary forms, with or without 45 * modification, are permitted provided that the following conditions 46 * are met: 47 * 1. Redistributions of source code must retain the above copyright 48 * notice, this list of conditions and the following disclaimer. 49 * 2. Redistributions in binary form must reproduce the above copyright 50 * notice, this list of conditions and the following disclaimer in the 51 * documentation and/or other materials provided with the distribution. 52 * 3. All advertising materials mentioning features or use of this software 53 * must display the following acknowledgement: 54 * This product includes software developed by the University of 55 * California, Berkeley and its contributors. 56 * 4. Neither the name of the University nor the names of its contributors 57 * may be used to endorse or promote products derived from this software 58 * without specific prior written permission. 59 * 60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 63 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 70 * SUCH DAMAGE. 71 * 72 * from: @(#)make.h 8.3 (Berkeley) 6/13/95 73 */ 74 75 /*- 76 * make.h -- 77 * The global definitions for pmake 78 */ 79 80 #ifndef _MAKE_H_ 81 #define _MAKE_H_ 82 83 #include <sys/types.h> 84 #include <sys/param.h> 85 86 #include <ctype.h> 87 #include <stdio.h> 88 #include <stdlib.h> 89 #include <string.h> 90 #include <unistd.h> 91 92 #ifdef BSD4_4 93 # include <sys/cdefs.h> 94 #endif 95 96 #if defined(__GNUC__) 97 #define MAKE_GNUC_PREREQ(x, y) \ 98 ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \ 99 (__GNUC__ > (x))) 100 #else /* defined(__GNUC__) */ 101 #define MAKE_GNUC_PREREQ(x, y) 0 102 #endif /* defined(__GNUC__) */ 103 104 #if MAKE_GNUC_PREREQ(2, 7) 105 #define MAKE_ATTR_UNUSED __attribute__((__unused__)) 106 #else 107 #define MAKE_ATTR_UNUSED /* delete */ 108 #endif 109 110 #if MAKE_GNUC_PREREQ(2, 5) 111 #define MAKE_ATTR_DEAD __attribute__((__noreturn__)) 112 #elif defined(__GNUC__) 113 #define MAKE_ATTR_DEAD __volatile 114 #else 115 #define MAKE_ATTR_DEAD /* delete */ 116 #endif 117 118 #if MAKE_GNUC_PREREQ(2, 7) 119 #define MAKE_ATTR_PRINTFLIKE(fmtarg, firstvararg) \ 120 __attribute__((__format__ (__printf__, fmtarg, firstvararg))) 121 #else 122 #define MAKE_ATTR_PRINTFLIKE(fmtarg, firstvararg) /* delete */ 123 #endif 124 125 #include "sprite.h" 126 #include "lst.h" 127 #include "hash.h" 128 #include "config.h" 129 #include "buf.h" 130 #include "make_malloc.h" 131 132 /*- 133 * The structure for an individual graph node. Each node has several 134 * pieces of data associated with it. 135 * 1) the name of the target it describes 136 * 2) the location of the target file in the file system. 137 * 3) the type of operator used to define its sources (qv. parse.c) 138 * 4) whether it is involved in this invocation of make 139 * 5) whether the target has been remade 140 * 6) whether any of its children has been remade 141 * 7) the number of its children that are, as yet, unmade 142 * 8) its modification time 143 * 9) the modification time of its youngest child (qv. make.c) 144 * 10) a list of nodes for which this is a source (parents) 145 * 11) a list of nodes on which this depends (children) 146 * 12) a list of nodes that depend on this, as gleaned from the 147 * transformation rules (iParents) 148 * 13) a list of ancestor nodes, which includes parents, iParents, 149 * and recursive parents of parents 150 * 14) a list of nodes of the same name created by the :: operator 151 * 15) a list of nodes that must be made (if they're made) before 152 * this node can be, but that do not enter into the datedness of 153 * this node. 154 * 16) a list of nodes that must be made (if they're made) before 155 * this node or any child of this node can be, but that do not 156 * enter into the datedness of this node. 157 * 17) a list of nodes that must be made (if they're made) after 158 * this node is, but that do not depend on this node, in the 159 * normal sense. 160 * 18) a Lst of ``local'' variables that are specific to this target 161 * and this target only (qv. var.c [$@ $< $?, etc.]) 162 * 19) a Lst of strings that are commands to be given to a shell 163 * to create this target. 164 */ 165 typedef struct GNode { 166 char *name; /* The target's name */ 167 char *uname; /* The unexpanded name of a .USE node */ 168 char *path; /* The full pathname of the file */ 169 int type; /* Its type (see the OP flags, below) */ 170 171 int flags; 172 #define REMAKE 0x1 /* this target needs to be (re)made */ 173 #define CHILDMADE 0x2 /* children of this target were made */ 174 #define FORCE 0x4 /* children don't exist, and we pretend made */ 175 #define DONE_WAIT 0x8 /* Set by Make_ProcessWait() */ 176 #define DONE_ORDER 0x10 /* Build requested by .ORDER processing */ 177 #define FROM_DEPEND 0x20 /* Node created from .depend */ 178 #define DONE_ALLSRC 0x40 /* We do it once only */ 179 #define CYCLE 0x1000 /* Used by MakePrintStatus */ 180 #define DONECYCLE 0x2000 /* Used by MakePrintStatus */ 181 enum enum_made { 182 UNMADE, DEFERRED, REQUESTED, BEINGMADE, 183 MADE, UPTODATE, ERROR, ABORTED 184 } made; /* Set to reflect the state of processing 185 * on this node: 186 * UNMADE - Not examined yet 187 * DEFERRED - Examined once (building child) 188 * REQUESTED - on toBeMade list 189 * BEINGMADE - Target is already being made. 190 * Indicates a cycle in the graph. 191 * MADE - Was out-of-date and has been made 192 * UPTODATE - Was already up-to-date 193 * ERROR - An error occurred while it was being 194 * made (used only in compat mode) 195 * ABORTED - The target was aborted due to 196 * an error making an inferior (compat). 197 */ 198 int unmade; /* The number of unmade children */ 199 200 time_t mtime; /* Its modification time */ 201 struct GNode *cmgn; /* The youngest child */ 202 203 Lst iParents; /* Links to parents for which this is an 204 * implied source, if any */ 205 Lst cohorts; /* Other nodes for the :: operator */ 206 Lst parents; /* Nodes that depend on this one */ 207 Lst children; /* Nodes on which this one depends */ 208 Lst order_pred; /* .ORDER nodes we need made */ 209 Lst order_succ; /* .ORDER nodes who need us */ 210 211 char cohort_num[8]; /* #n for this cohort */ 212 int unmade_cohorts;/* # of unmade instances on the 213 cohorts list */ 214 struct GNode *centurion; /* Pointer to the first instance of a :: 215 node; only set when on a cohorts list */ 216 unsigned int checked; /* Last time we tried to makle this node */ 217 218 Hash_Table context; /* The local variables */ 219 Lst commands; /* Creation commands */ 220 221 struct _Suff *suffix; /* Suffix for the node (determined by 222 * Suff_FindDeps and opaque to everyone 223 * but the Suff module) */ 224 const char *fname; /* filename where the GNode got defined */ 225 int lineno; /* line number where the GNode got defined */ 226 } GNode; 227 228 /* 229 * The OP_ constants are used when parsing a dependency line as a way of 230 * communicating to other parts of the program the way in which a target 231 * should be made. These constants are bitwise-OR'ed together and 232 * placed in the 'type' field of each node. Any node that has 233 * a 'type' field which satisfies the OP_NOP function was never never on 234 * the lefthand side of an operator, though it may have been on the 235 * righthand side... 236 */ 237 #define OP_DEPENDS 0x00000001 /* Execution of commands depends on 238 * kids (:) */ 239 #define OP_FORCE 0x00000002 /* Always execute commands (!) */ 240 #define OP_DOUBLEDEP 0x00000004 /* Execution of commands depends on kids 241 * per line (::) */ 242 #define OP_OPMASK (OP_DEPENDS|OP_FORCE|OP_DOUBLEDEP) 243 244 #define OP_OPTIONAL 0x00000008 /* Don't care if the target doesn't 245 * exist and can't be created */ 246 #define OP_USE 0x00000010 /* Use associated commands for parents */ 247 #define OP_EXEC 0x00000020 /* Target is never out of date, but always 248 * execute commands anyway. Its time 249 * doesn't matter, so it has none...sort 250 * of */ 251 #define OP_IGNORE 0x00000040 /* Ignore errors when creating the node */ 252 #define OP_PRECIOUS 0x00000080 /* Don't remove the target when 253 * interrupted */ 254 #define OP_SILENT 0x00000100 /* Don't echo commands when executed */ 255 #define OP_MAKE 0x00000200 /* Target is a recursive make so its 256 * commands should always be executed when 257 * it is out of date, regardless of the 258 * state of the -n or -t flags */ 259 #define OP_JOIN 0x00000400 /* Target is out-of-date only if any of its 260 * children was out-of-date */ 261 #define OP_MADE 0x00000800 /* Assume the children of the node have 262 * been already made */ 263 #define OP_SPECIAL 0x00001000 /* Special .BEGIN, .END, .INTERRUPT */ 264 #define OP_USEBEFORE 0x00002000 /* Like .USE, only prepend commands */ 265 #define OP_INVISIBLE 0x00004000 /* The node is invisible to its parents. 266 * I.e. it doesn't show up in the parents's 267 * local variables. */ 268 #define OP_NOTMAIN 0x00008000 /* The node is exempt from normal 'main 269 * target' processing in parse.c */ 270 #define OP_PHONY 0x00010000 /* Not a file target; run always */ 271 #define OP_NOPATH 0x00020000 /* Don't search for file in the path */ 272 #define OP_WAIT 0x00040000 /* .WAIT phony node */ 273 #define OP_NOMETA 0x00080000 /* .NOMETA do not create a .meta file */ 274 #define OP_META 0x00100000 /* .META we _do_ want a .meta file */ 275 #define OP_NOMETA_CMP 0x00200000 /* Do not compare commands in .meta file */ 276 #define OP_SUBMAKE 0x00400000 /* Possibly a submake node */ 277 /* Attributes applied by PMake */ 278 #define OP_TRANSFORM 0x80000000 /* The node is a transformation rule */ 279 #define OP_MEMBER 0x40000000 /* Target is a member of an archive */ 280 #define OP_LIB 0x20000000 /* Target is a library */ 281 #define OP_ARCHV 0x10000000 /* Target is an archive construct */ 282 #define OP_HAS_COMMANDS 0x08000000 /* Target has all the commands it should. 283 * Used when parsing to catch multiple 284 * commands for a target */ 285 #define OP_SAVE_CMDS 0x04000000 /* Saving commands on .END (Compat) */ 286 #define OP_DEPS_FOUND 0x02000000 /* Already processed by Suff_FindDeps */ 287 #define OP_MARK 0x01000000 /* Node found while expanding .ALLSRC */ 288 289 #define NoExecute(gn) ((gn->type & OP_MAKE) ? noRecursiveExecute : noExecute) 290 /* 291 * OP_NOP will return TRUE if the node with the given type was not the 292 * object of a dependency operator 293 */ 294 #define OP_NOP(t) (((t) & OP_OPMASK) == 0x00000000) 295 296 #define OP_NOTARGET (OP_NOTMAIN|OP_USE|OP_EXEC|OP_TRANSFORM) 297 298 /* 299 * The TARG_ constants are used when calling the Targ_FindNode and 300 * Targ_FindList functions in targ.c. They simply tell the functions what to 301 * do if the desired node(s) is (are) not found. If the TARG_CREATE constant 302 * is given, a new, empty node will be created for the target, placed in the 303 * table of all targets and its address returned. If TARG_NOCREATE is given, 304 * a NULL pointer will be returned. 305 */ 306 #define TARG_NOCREATE 0x00 /* don't create it */ 307 #define TARG_CREATE 0x01 /* create node if not found */ 308 #define TARG_NOHASH 0x02 /* don't look in/add to hash table */ 309 310 /* 311 * These constants are all used by the Str_Concat function to decide how the 312 * final string should look. If STR_ADDSPACE is given, a space will be 313 * placed between the two strings. If STR_ADDSLASH is given, a '/' will 314 * be used instead of a space. If neither is given, no intervening characters 315 * will be placed between the two strings in the final output. If the 316 * STR_DOFREE bit is set, the two input strings will be freed before 317 * Str_Concat returns. 318 */ 319 #define STR_ADDSPACE 0x01 /* add a space when Str_Concat'ing */ 320 #define STR_ADDSLASH 0x02 /* add a slash when Str_Concat'ing */ 321 322 /* 323 * Error levels for parsing. PARSE_FATAL means the process cannot continue 324 * once the makefile has been parsed. PARSE_WARNING means it can. Passed 325 * as the first argument to Parse_Error. 326 */ 327 #define PARSE_WARNING 2 328 #define PARSE_FATAL 1 329 330 /* 331 * Values returned by Cond_Eval. 332 */ 333 #define COND_PARSE 0 /* Parse the next lines */ 334 #define COND_SKIP 1 /* Skip the next lines */ 335 #define COND_INVALID 2 /* Not a conditional statement */ 336 337 /* 338 * Definitions for the "local" variables. Used only for clarity. 339 */ 340 #define TARGET "@" /* Target of dependency */ 341 #define OODATE "?" /* All out-of-date sources */ 342 #define ALLSRC ">" /* All sources */ 343 #define IMPSRC "<" /* Source implied by transformation */ 344 #define PREFIX "*" /* Common prefix */ 345 #define ARCHIVE "!" /* Archive in "archive(member)" syntax */ 346 #define MEMBER "%" /* Member in "archive(member)" syntax */ 347 348 #define FTARGET "@F" /* file part of TARGET */ 349 #define DTARGET "@D" /* directory part of TARGET */ 350 #define FIMPSRC "<F" /* file part of IMPSRC */ 351 #define DIMPSRC "<D" /* directory part of IMPSRC */ 352 #define FPREFIX "*F" /* file part of PREFIX */ 353 #define DPREFIX "*D" /* directory part of PREFIX */ 354 355 /* 356 * Global Variables 357 */ 358 extern Lst create; /* The list of target names specified on the 359 * command line. used to resolve #if 360 * make(...) statements */ 361 extern Lst dirSearchPath; /* The list of directories to search when 362 * looking for targets */ 363 364 extern Boolean compatMake; /* True if we are make compatible */ 365 extern Boolean ignoreErrors; /* True if should ignore all errors */ 366 extern Boolean beSilent; /* True if should print no commands */ 367 extern Boolean noExecute; /* True if should execute nothing */ 368 extern Boolean noRecursiveExecute; /* True if should execute nothing */ 369 extern Boolean allPrecious; /* True if every target is precious */ 370 extern Boolean keepgoing; /* True if should continue on unaffected 371 * portions of the graph when have an error 372 * in one portion */ 373 extern Boolean touchFlag; /* TRUE if targets should just be 'touched' 374 * if out of date. Set by the -t flag */ 375 extern Boolean queryFlag; /* TRUE if we aren't supposed to really make 376 * anything, just see if the targets are out- 377 * of-date */ 378 extern Boolean doing_depend; /* TRUE if processing .depend */ 379 380 extern Boolean checkEnvFirst; /* TRUE if environment should be searched for 381 * variables before the global context */ 382 extern Boolean jobServer; /* a jobServer already exists */ 383 384 extern Boolean parseWarnFatal; /* TRUE if makefile parsing warnings are 385 * treated as errors */ 386 387 extern Boolean varNoExportEnv; /* TRUE if we should not export variables 388 * set on the command line to the env. */ 389 390 extern GNode *DEFAULT; /* .DEFAULT rule */ 391 392 extern GNode *VAR_INTERNAL; /* Variables defined internally by make 393 * which should not override those set by 394 * makefiles. 395 */ 396 extern GNode *VAR_GLOBAL; /* Variables defined in a global context, e.g 397 * in the Makefile itself */ 398 extern GNode *VAR_CMD; /* Variables defined on the command line */ 399 extern GNode *VAR_FOR; /* Iteration variables */ 400 extern char var_Error[]; /* Value returned by Var_Parse when an error 401 * is encountered. It actually points to 402 * an empty string, so naive callers needn't 403 * worry about it. */ 404 405 extern time_t now; /* The time at the start of this whole 406 * process */ 407 408 extern Boolean oldVars; /* Do old-style variable substitution */ 409 410 extern Lst sysIncPath; /* The system include path. */ 411 extern Lst defIncPath; /* The default include path. */ 412 413 extern char curdir[]; /* Startup directory */ 414 extern char *progname; /* The program name */ 415 extern char *makeDependfile; /* .depend */ 416 extern char **savedEnv; /* if we replaced environ this will be non-NULL */ 417 418 /* 419 * We cannot vfork() in a child of vfork(). 420 * Most systems do not enforce this but some do. 421 */ 422 #define vFork() ((getpid() == myPid) ? vfork() : fork()) 423 extern pid_t myPid; 424 425 #define MAKEFLAGS ".MAKEFLAGS" 426 #define MAKEOVERRIDES ".MAKEOVERRIDES" 427 #define MAKE_JOB_PREFIX ".MAKE.JOB.PREFIX" /* prefix for job target output */ 428 #define MAKE_EXPORTED ".MAKE.EXPORTED" /* variables we export */ 429 #define MAKE_MAKEFILES ".MAKE.MAKEFILES" /* all the makefiles we read */ 430 #define MAKE_LEVEL ".MAKE.LEVEL" /* recursion level */ 431 #define MAKEFILE_PREFERENCE ".MAKE.MAKEFILE_PREFERENCE" 432 #define MAKE_DEPENDFILE ".MAKE.DEPENDFILE" /* .depend */ 433 #define MAKE_MODE ".MAKE.MODE" 434 #ifndef MAKE_LEVEL_ENV 435 # define MAKE_LEVEL_ENV "MAKELEVEL" 436 #endif 437 438 /* 439 * debug control: 440 * There is one bit per module. It is up to the module what debug 441 * information to print. 442 */ 443 FILE *debug_file; /* Output written here - default stdout */ 444 extern int debug; 445 #define DEBUG_ARCH 0x00001 446 #define DEBUG_COND 0x00002 447 #define DEBUG_DIR 0x00004 448 #define DEBUG_GRAPH1 0x00008 449 #define DEBUG_GRAPH2 0x00010 450 #define DEBUG_JOB 0x00020 451 #define DEBUG_MAKE 0x00040 452 #define DEBUG_SUFF 0x00080 453 #define DEBUG_TARG 0x00100 454 #define DEBUG_VAR 0x00200 455 #define DEBUG_FOR 0x00400 456 #define DEBUG_SHELL 0x00800 457 #define DEBUG_ERROR 0x01000 458 #define DEBUG_LOUD 0x02000 459 #define DEBUG_META 0x04000 460 461 #define DEBUG_GRAPH3 0x10000 462 #define DEBUG_SCRIPT 0x20000 463 #define DEBUG_PARSE 0x40000 464 #define DEBUG_CWD 0x80000 465 466 #define CONCAT(a,b) a##b 467 468 #define DEBUG(module) (debug & CONCAT(DEBUG_,module)) 469 470 #include "nonints.h" 471 472 int Make_TimeStamp(GNode *, GNode *); 473 Boolean Make_OODate(GNode *); 474 void Make_ExpandUse(Lst); 475 time_t Make_Recheck(GNode *); 476 void Make_HandleUse(GNode *, GNode *); 477 void Make_Update(GNode *); 478 void Make_DoAllVar(GNode *); 479 Boolean Make_Run(Lst); 480 char * Check_Cwd_Cmd(const char *); 481 void Check_Cwd(const char **); 482 void PrintOnError(GNode *, const char *); 483 void Main_ExportMAKEFLAGS(Boolean); 484 Boolean Main_SetObjdir(const char *); 485 int mkTempFile(const char *, char **); 486 int str2Lst_Append(Lst, char *, const char *); 487 488 #ifdef __GNUC__ 489 #define UNCONST(ptr) ({ \ 490 union __unconst { \ 491 const void *__cp; \ 492 void *__p; \ 493 } __d; \ 494 __d.__cp = ptr, __d.__p; }) 495 #else 496 #define UNCONST(ptr) (void *)(ptr) 497 #endif 498 499 #ifndef MIN 500 #define MIN(a, b) ((a < b) ? a : b) 501 #endif 502 #ifndef MAX 503 #define MAX(a, b) ((a > b) ? a : b) 504 #endif 505 506 #endif /* _MAKE_H_ */ 507
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