make.h revision 1.87
1 /* $NetBSD: make.h,v 1.87 2011/09/16 15:38:04 joerg 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_PREREQ__) 97 #if defined(__GNUC__) 98 #define __GNUC_PREREQ__(x, y) \ 99 ((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \ 100 (__GNUC__ > (x))) 101 #else /* defined(__GNUC__) */ 102 #define __GNUC_PREREQ__(x, y) 0 103 #endif /* defined(__GNUC__) */ 104 #endif /* !defined(__GNUC_PREREQ__) */ 105 106 #if !defined(__unused) 107 #if __GNUC_PREREQ__(2, 7) 108 #define __unused __attribute__((__unused__)) 109 #else 110 #define __unused /* delete */ 111 #endif 112 #endif 113 114 #if !defined(__dead) 115 #define __dead 116 #endif 117 118 #include "sprite.h" 119 #include "lst.h" 120 #include "hash.h" 121 #include "config.h" 122 #include "buf.h" 123 #include "make_malloc.h" 124 125 /*- 126 * The structure for an individual graph node. Each node has several 127 * pieces of data associated with it. 128 * 1) the name of the target it describes 129 * 2) the location of the target file in the file system. 130 * 3) the type of operator used to define its sources (qv. parse.c) 131 * 4) whether it is involved in this invocation of make 132 * 5) whether the target has been remade 133 * 6) whether any of its children has been remade 134 * 7) the number of its children that are, as yet, unmade 135 * 8) its modification time 136 * 9) the modification time of its youngest child (qv. make.c) 137 * 10) a list of nodes for which this is a source (parents) 138 * 11) a list of nodes on which this depends (children) 139 * 12) a list of nodes that depend on this, as gleaned from the 140 * transformation rules (iParents) 141 * 13) a list of ancestor nodes, which includes parents, iParents, 142 * and recursive parents of parents 143 * 14) a list of nodes of the same name created by the :: operator 144 * 15) a list of nodes that must be made (if they're made) before 145 * this node can be, but that do not enter into the datedness of 146 * this node. 147 * 16) a list of nodes that must be made (if they're made) before 148 * this node or any child of this node can be, but that do not 149 * enter into the datedness of this node. 150 * 17) a list of nodes that must be made (if they're made) after 151 * this node is, but that do not depend on this node, in the 152 * normal sense. 153 * 18) a Lst of ``local'' variables that are specific to this target 154 * and this target only (qv. var.c [$@ $< $?, etc.]) 155 * 19) a Lst of strings that are commands to be given to a shell 156 * to create this target. 157 */ 158 typedef struct GNode { 159 char *name; /* The target's name */ 160 char *uname; /* The unexpanded name of a .USE node */ 161 char *path; /* The full pathname of the file */ 162 int type; /* Its type (see the OP flags, below) */ 163 164 int flags; 165 #define REMAKE 0x1 /* this target needs to be (re)made */ 166 #define CHILDMADE 0x2 /* children of this target were made */ 167 #define FORCE 0x4 /* children don't exist, and we pretend made */ 168 #define DONE_WAIT 0x8 /* Set by Make_ProcessWait() */ 169 #define DONE_ORDER 0x10 /* Build requested by .ORDER processing */ 170 #define FROM_DEPEND 0x20 /* Node created from .depend */ 171 #define DONE_ALLSRC 0x40 /* We do it once only */ 172 #define CYCLE 0x1000 /* Used by MakePrintStatus */ 173 #define DONECYCLE 0x2000 /* Used by MakePrintStatus */ 174 enum enum_made { 175 UNMADE, DEFERRED, REQUESTED, BEINGMADE, 176 MADE, UPTODATE, ERROR, ABORTED 177 } made; /* Set to reflect the state of processing 178 * on this node: 179 * UNMADE - Not examined yet 180 * DEFERRED - Examined once (building child) 181 * REQUESTED - on toBeMade list 182 * BEINGMADE - Target is already being made. 183 * Indicates a cycle in the graph. 184 * MADE - Was out-of-date and has been made 185 * UPTODATE - Was already up-to-date 186 * ERROR - An error occurred while it was being 187 * made (used only in compat mode) 188 * ABORTED - The target was aborted due to 189 * an error making an inferior (compat). 190 */ 191 int unmade; /* The number of unmade children */ 192 193 time_t mtime; /* Its modification time */ 194 struct GNode *cmgn; /* The youngest child */ 195 196 Lst iParents; /* Links to parents for which this is an 197 * implied source, if any */ 198 Lst cohorts; /* Other nodes for the :: operator */ 199 Lst parents; /* Nodes that depend on this one */ 200 Lst children; /* Nodes on which this one depends */ 201 Lst order_pred; /* .ORDER nodes we need made */ 202 Lst order_succ; /* .ORDER nodes who need us */ 203 204 char cohort_num[8]; /* #n for this cohort */ 205 int unmade_cohorts;/* # of unmade instances on the 206 cohorts list */ 207 struct GNode *centurion; /* Pointer to the first instance of a :: 208 node; only set when on a cohorts list */ 209 unsigned int checked; /* Last time we tried to makle this node */ 210 211 Hash_Table context; /* The local variables */ 212 Lst commands; /* Creation commands */ 213 214 struct _Suff *suffix; /* Suffix for the node (determined by 215 * Suff_FindDeps and opaque to everyone 216 * but the Suff module) */ 217 const char *fname; /* filename where the GNode got defined */ 218 int lineno; /* line number where the GNode got defined */ 219 } GNode; 220 221 /* 222 * The OP_ constants are used when parsing a dependency line as a way of 223 * communicating to other parts of the program the way in which a target 224 * should be made. These constants are bitwise-OR'ed together and 225 * placed in the 'type' field of each node. Any node that has 226 * a 'type' field which satisfies the OP_NOP function was never never on 227 * the lefthand side of an operator, though it may have been on the 228 * righthand side... 229 */ 230 #define OP_DEPENDS 0x00000001 /* Execution of commands depends on 231 * kids (:) */ 232 #define OP_FORCE 0x00000002 /* Always execute commands (!) */ 233 #define OP_DOUBLEDEP 0x00000004 /* Execution of commands depends on kids 234 * per line (::) */ 235 #define OP_OPMASK (OP_DEPENDS|OP_FORCE|OP_DOUBLEDEP) 236 237 #define OP_OPTIONAL 0x00000008 /* Don't care if the target doesn't 238 * exist and can't be created */ 239 #define OP_USE 0x00000010 /* Use associated commands for parents */ 240 #define OP_EXEC 0x00000020 /* Target is never out of date, but always 241 * execute commands anyway. Its time 242 * doesn't matter, so it has none...sort 243 * of */ 244 #define OP_IGNORE 0x00000040 /* Ignore errors when creating the node */ 245 #define OP_PRECIOUS 0x00000080 /* Don't remove the target when 246 * interrupted */ 247 #define OP_SILENT 0x00000100 /* Don't echo commands when executed */ 248 #define OP_MAKE 0x00000200 /* Target is a recursive make so its 249 * commands should always be executed when 250 * it is out of date, regardless of the 251 * state of the -n or -t flags */ 252 #define OP_JOIN 0x00000400 /* Target is out-of-date only if any of its 253 * children was out-of-date */ 254 #define OP_MADE 0x00000800 /* Assume the children of the node have 255 * been already made */ 256 #define OP_SPECIAL 0x00001000 /* Special .BEGIN, .END, .INTERRUPT */ 257 #define OP_USEBEFORE 0x00002000 /* Like .USE, only prepend commands */ 258 #define OP_INVISIBLE 0x00004000 /* The node is invisible to its parents. 259 * I.e. it doesn't show up in the parents's 260 * local variables. */ 261 #define OP_NOTMAIN 0x00008000 /* The node is exempt from normal 'main 262 * target' processing in parse.c */ 263 #define OP_PHONY 0x00010000 /* Not a file target; run always */ 264 #define OP_NOPATH 0x00020000 /* Don't search for file in the path */ 265 #define OP_WAIT 0x00040000 /* .WAIT phony node */ 266 #define OP_NOMETA 0x00080000 /* .NOMETA do not create a .meta file */ 267 #define OP_META 0x00100000 /* .META we _do_ want a .meta file */ 268 #define OP_NOMETA_CMP 0x00200000 /* Do not compare commands in .meta file */ 269 /* Attributes applied by PMake */ 270 #define OP_TRANSFORM 0x80000000 /* The node is a transformation rule */ 271 #define OP_MEMBER 0x40000000 /* Target is a member of an archive */ 272 #define OP_LIB 0x20000000 /* Target is a library */ 273 #define OP_ARCHV 0x10000000 /* Target is an archive construct */ 274 #define OP_HAS_COMMANDS 0x08000000 /* Target has all the commands it should. 275 * Used when parsing to catch multiple 276 * commands for a target */ 277 #define OP_SAVE_CMDS 0x04000000 /* Saving commands on .END (Compat) */ 278 #define OP_DEPS_FOUND 0x02000000 /* Already processed by Suff_FindDeps */ 279 #define OP_MARK 0x01000000 /* Node found while expanding .ALLSRC */ 280 281 #define NoExecute(gn) ((gn->type & OP_MAKE) ? noRecursiveExecute : noExecute) 282 /* 283 * OP_NOP will return TRUE if the node with the given type was not the 284 * object of a dependency operator 285 */ 286 #define OP_NOP(t) (((t) & OP_OPMASK) == 0x00000000) 287 288 #define OP_NOTARGET (OP_NOTMAIN|OP_USE|OP_EXEC|OP_TRANSFORM) 289 290 /* 291 * The TARG_ constants are used when calling the Targ_FindNode and 292 * Targ_FindList functions in targ.c. They simply tell the functions what to 293 * do if the desired node(s) is (are) not found. If the TARG_CREATE constant 294 * is given, a new, empty node will be created for the target, placed in the 295 * table of all targets and its address returned. If TARG_NOCREATE is given, 296 * a NULL pointer will be returned. 297 */ 298 #define TARG_NOCREATE 0x00 /* don't create it */ 299 #define TARG_CREATE 0x01 /* create node if not found */ 300 #define TARG_NOHASH 0x02 /* don't look in/add to hash table */ 301 302 /* 303 * These constants are all used by the Str_Concat function to decide how the 304 * final string should look. If STR_ADDSPACE is given, a space will be 305 * placed between the two strings. If STR_ADDSLASH is given, a '/' will 306 * be used instead of a space. If neither is given, no intervening characters 307 * will be placed between the two strings in the final output. If the 308 * STR_DOFREE bit is set, the two input strings will be freed before 309 * Str_Concat returns. 310 */ 311 #define STR_ADDSPACE 0x01 /* add a space when Str_Concat'ing */ 312 #define STR_ADDSLASH 0x02 /* add a slash when Str_Concat'ing */ 313 314 /* 315 * Error levels for parsing. PARSE_FATAL means the process cannot continue 316 * once the makefile has been parsed. PARSE_WARNING means it can. Passed 317 * as the first argument to Parse_Error. 318 */ 319 #define PARSE_WARNING 2 320 #define PARSE_FATAL 1 321 322 /* 323 * Values returned by Cond_Eval. 324 */ 325 #define COND_PARSE 0 /* Parse the next lines */ 326 #define COND_SKIP 1 /* Skip the next lines */ 327 #define COND_INVALID 2 /* Not a conditional statement */ 328 329 /* 330 * Definitions for the "local" variables. Used only for clarity. 331 */ 332 #define TARGET "@" /* Target of dependency */ 333 #define OODATE "?" /* All out-of-date sources */ 334 #define ALLSRC ">" /* All sources */ 335 #define IMPSRC "<" /* Source implied by transformation */ 336 #define PREFIX "*" /* Common prefix */ 337 #define ARCHIVE "!" /* Archive in "archive(member)" syntax */ 338 #define MEMBER "%" /* Member in "archive(member)" syntax */ 339 340 #define FTARGET "@F" /* file part of TARGET */ 341 #define DTARGET "@D" /* directory part of TARGET */ 342 #define FIMPSRC "<F" /* file part of IMPSRC */ 343 #define DIMPSRC "<D" /* directory part of IMPSRC */ 344 #define FPREFIX "*F" /* file part of PREFIX */ 345 #define DPREFIX "*D" /* directory part of PREFIX */ 346 347 /* 348 * Global Variables 349 */ 350 extern Lst create; /* The list of target names specified on the 351 * command line. used to resolve #if 352 * make(...) statements */ 353 extern Lst dirSearchPath; /* The list of directories to search when 354 * looking for targets */ 355 356 extern Boolean compatMake; /* True if we are make compatible */ 357 extern Boolean ignoreErrors; /* True if should ignore all errors */ 358 extern Boolean beSilent; /* True if should print no commands */ 359 extern Boolean noExecute; /* True if should execute nothing */ 360 extern Boolean noRecursiveExecute; /* True if should execute nothing */ 361 extern Boolean allPrecious; /* True if every target is precious */ 362 extern Boolean keepgoing; /* True if should continue on unaffected 363 * portions of the graph when have an error 364 * in one portion */ 365 extern Boolean touchFlag; /* TRUE if targets should just be 'touched' 366 * if out of date. Set by the -t flag */ 367 extern Boolean queryFlag; /* TRUE if we aren't supposed to really make 368 * anything, just see if the targets are out- 369 * of-date */ 370 extern Boolean doing_depend; /* TRUE if processing .depend */ 371 372 extern Boolean checkEnvFirst; /* TRUE if environment should be searched for 373 * variables before the global context */ 374 extern Boolean jobServer; /* a jobServer already exists */ 375 376 extern Boolean parseWarnFatal; /* TRUE if makefile parsing warnings are 377 * treated as errors */ 378 379 extern Boolean varNoExportEnv; /* TRUE if we should not export variables 380 * set on the command line to the env. */ 381 382 extern GNode *DEFAULT; /* .DEFAULT rule */ 383 384 extern GNode *VAR_GLOBAL; /* Variables defined in a global context, e.g 385 * in the Makefile itself */ 386 extern GNode *VAR_CMD; /* Variables defined on the command line */ 387 extern GNode *VAR_FOR; /* Iteration variables */ 388 extern char var_Error[]; /* Value returned by Var_Parse when an error 389 * is encountered. It actually points to 390 * an empty string, so naive callers needn't 391 * worry about it. */ 392 393 extern time_t now; /* The time at the start of this whole 394 * process */ 395 396 extern Boolean oldVars; /* Do old-style variable substitution */ 397 398 extern Lst sysIncPath; /* The system include path. */ 399 extern Lst defIncPath; /* The default include path. */ 400 401 extern char curdir[]; /* Startup directory */ 402 extern char *progname; /* The program name */ 403 extern char *makeDependfile; /* .depend */ 404 405 /* 406 * We cannot vfork() in a child of vfork(). 407 * Most systems do not enforce this but some do. 408 */ 409 #define vFork() ((getpid() == myPid) ? vfork() : fork()) 410 extern pid_t myPid; 411 412 #define MAKEFLAGS ".MAKEFLAGS" 413 #define MAKEOVERRIDES ".MAKEOVERRIDES" 414 #define MAKE_JOB_PREFIX ".MAKE.JOB.PREFIX" /* prefix for job target output */ 415 #define MAKE_EXPORTED ".MAKE.EXPORTED" /* variables we export */ 416 #define MAKE_MAKEFILES ".MAKE.MAKEFILES" /* all the makefiles we read */ 417 #define MAKE_LEVEL ".MAKE.LEVEL" /* recursion level */ 418 #define MAKEFILE_PREFERENCE ".MAKE.MAKEFILE_PREFERENCE" 419 #define MAKE_DEPENDFILE ".MAKE.DEPENDFILE" /* .depend */ 420 #define MAKE_MODE ".MAKE.MODE" 421 422 /* 423 * debug control: 424 * There is one bit per module. It is up to the module what debug 425 * information to print. 426 */ 427 FILE *debug_file; /* Output written here - default stdout */ 428 extern int debug; 429 #define DEBUG_ARCH 0x00001 430 #define DEBUG_COND 0x00002 431 #define DEBUG_DIR 0x00004 432 #define DEBUG_GRAPH1 0x00008 433 #define DEBUG_GRAPH2 0x00010 434 #define DEBUG_JOB 0x00020 435 #define DEBUG_MAKE 0x00040 436 #define DEBUG_SUFF 0x00080 437 #define DEBUG_TARG 0x00100 438 #define DEBUG_VAR 0x00200 439 #define DEBUG_FOR 0x00400 440 #define DEBUG_SHELL 0x00800 441 #define DEBUG_ERROR 0x01000 442 #define DEBUG_LOUD 0x02000 443 #define DEBUG_META 0x04000 444 445 #define DEBUG_GRAPH3 0x10000 446 #define DEBUG_SCRIPT 0x20000 447 #define DEBUG_PARSE 0x40000 448 #define DEBUG_CWD 0x80000 449 450 #define CONCAT(a,b) a##b 451 452 #define DEBUG(module) (debug & CONCAT(DEBUG_,module)) 453 454 #include "nonints.h" 455 456 int Make_TimeStamp(GNode *, GNode *); 457 Boolean Make_OODate(GNode *); 458 void Make_ExpandUse(Lst); 459 time_t Make_Recheck(GNode *); 460 void Make_HandleUse(GNode *, GNode *); 461 void Make_Update(GNode *); 462 void Make_DoAllVar(GNode *); 463 Boolean Make_Run(Lst); 464 char * Check_Cwd_Cmd(const char *); 465 void Check_Cwd(const char **); 466 void PrintOnError(GNode *, const char *); 467 void Main_ExportMAKEFLAGS(Boolean); 468 Boolean Main_SetObjdir(const char *); 469 int mkTempFile(const char *, char **); 470 int str2Lst_Append(Lst, char *, const char *); 471 472 #ifdef __GNUC__ 473 #define UNCONST(ptr) ({ \ 474 union __unconst { \ 475 const void *__cp; \ 476 void *__p; \ 477 } __d; \ 478 __d.__cp = ptr, __d.__p; }) 479 #else 480 #define UNCONST(ptr) (void *)(ptr) 481 #endif 482 483 #ifndef MIN 484 #define MIN(a, b) ((a < b) ? a : b) 485 #endif 486 #ifndef MAX 487 #define MAX(a, b) ((a > b) ? a : b) 488 #endif 489 490 #endif /* _MAKE_H_ */ 491
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