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source: kBuild/trunk/src/kmk/make.h@ 27

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1/*
2 * Copyright (c) 1988, 1989, 1990, 1993
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 1989 by Berkeley Softworks
5 * 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. All advertising materials mentioning features or use of this software
19 * must display the following acknowledgement:
20 * This product includes software developed by the University of
21 * California, Berkeley and its contributors.
22 * 4. Neither the name of the University nor the names of its contributors
23 * may be used to endorse or promote products derived from this software
24 * without specific prior written permission.
25 *
26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * SUCH DAMAGE.
37 *
38 * from: @(#)make.h 8.3 (Berkeley) 6/13/95
39 * $FreeBSD: src/usr.bin/make/make.h,v 1.12.2.2 2001/02/13 03:13:58 will Exp $
40 */
41
42/*-
43 * make.h --
44 * The global definitions for pmake
45 */
46
47#ifndef _MAKE_H_
48#define _MAKE_H_
49
50#include <sys/types.h>
51#include <stdio.h>
52#include <string.h>
53#include <ctype.h>
54#include <err.h>
55
56#if !defined(MAKE_BOOTSTRAP) && defined(BSD4_4) && !defined(__IBMC__)
57# include <sys/cdefs.h>
58#else
59# ifndef __P
60/*kso: # if defined(__STDC__) || defined(__cplusplus) */
61# if defined(__STDC__) || defined(__cplusplus) || defined(__IBMC__)
62# define __P(protos) protos /* full-blown ANSI C */
63# else
64# define __P(protos) () /* traditional C preprocessor */
65# endif
66# endif
67/*kso: # ifndef __STDC__*/
68# if !defined(__STDC__) && !defined(__IBMC__)
69# ifndef const
70# define const
71# endif
72# ifndef volatile
73# define volatile
74# endif
75# endif
76#endif
77
78#if defined(__IBMC__)
79#include <stdlib.h>
80#include <time.h>
81/*#ifdef __STDC__*/
82#elif defined(__STDC__)
83#include <stdlib.h>
84#include <unistd.h>
85#endif
86
87#include "sprite.h"
88#include "lst.h"
89#include "config.h"
90#include "buf.h"
91
92/*-
93 * The structure for an individual graph node. Each node has several
94 * pieces of data associated with it.
95 * 1) the name of the target it describes
96 * 2) the location of the target file in the file system.
97 * 3) the type of operator used to define its sources (qv. parse.c)
98 * 4) whether it is involved in this invocation of make
99 * 5) whether the target has been remade
100 * 6) whether any of its children has been remade
101 * 7) the number of its children that are, as yet, unmade
102 * 8) its modification time
103 * 9) the modification time of its youngest child (qv. make.c)
104 * 10) a list of nodes for which this is a source
105 * 11) a list of nodes on which this depends
106 * 12) a list of nodes that depend on this, as gleaned from the
107 * transformation rules.
108 * 13) a list of nodes of the same name created by the :: operator
109 * 14) a list of nodes that must be made (if they're made) before
110 * this node can be, but that do no enter into the datedness of
111 * this node.
112 * 15) a list of nodes that must be made (if they're made) after
113 * this node is, but that do not depend on this node, in the
114 * normal sense.
115 * 16) a Lst of ``local'' variables that are specific to this target
116 * and this target only (qv. var.c [$@ $< $?, etc.])
117 * 17) a Lst of strings that are commands to be given to a shell
118 * to create this target.
119 */
120typedef struct GNode {
121 char *name; /* The target's name */
122 char *path; /* The full pathname of the file */
123 int type; /* Its type (see the OP flags, below) */
124 int order; /* Its wait weight */
125
126 Boolean make; /* TRUE if this target needs to be remade */
127 enum {
128 UNMADE, BEINGMADE, MADE, UPTODATE, ERROR, ABORTED,
129 CYCLE, ENDCYCLE
130 } made; /* Set to reflect the state of processing
131 * on this node:
132 * UNMADE - Not examined yet
133 * BEINGMADE - Target is already being made.
134 * Indicates a cycle in the graph. (compat
135 * mode only)
136 * MADE - Was out-of-date and has been made
137 * UPTODATE - Was already up-to-date
138 * ERROR - An error occured while it was being
139 * made (used only in compat mode)
140 * ABORTED - The target was aborted due to
141 * an error making an inferior (compat).
142 * CYCLE - Marked as potentially being part of
143 * a graph cycle. If we come back to a
144 * node marked this way, it is printed
145 * and 'made' is changed to ENDCYCLE.
146 * ENDCYCLE - the cycle has been completely
147 * printed. Go back and unmark all its
148 * members.
149 */
150 Boolean childMade; /* TRUE if one of this target's children was
151 * made */
152 int unmade; /* The number of unmade children */
153
154 int mtime; /* Its modification time */
155 int cmtime; /* The modification time of its youngest
156 * child */
157
158 Lst iParents; /* Links to parents for which this is an
159 * implied source, if any */
160 Lst cohorts; /* Other nodes for the :: operator */
161 Lst parents; /* Nodes that depend on this one */
162 Lst children; /* Nodes on which this one depends */
163 Lst successors; /* Nodes that must be made after this one */
164 Lst preds; /* Nodes that must be made before this one */
165
166 Lst context; /* The local variables */
167 Lst commands; /* Creation commands */
168
169 struct _Suff *suffix; /* Suffix for the node (determined by
170 * Suff_FindDeps and opaque to everyone
171 * but the Suff module) */
172} GNode;
173
174/*
175 * Manifest constants
176 */
177#define NILGNODE ((GNode *) NIL)
178
179/*
180 * The OP_ constants are used when parsing a dependency line as a way of
181 * communicating to other parts of the program the way in which a target
182 * should be made. These constants are bitwise-OR'ed together and
183 * placed in the 'type' field of each node. Any node that has
184 * a 'type' field which satisfies the OP_NOP function was never never on
185 * the lefthand side of an operator, though it may have been on the
186 * righthand side...
187 */
188#define OP_DEPENDS 0x00000001 /* Execution of commands depends on
189 * kids (:) */
190#define OP_FORCE 0x00000002 /* Always execute commands (!) */
191#define OP_DOUBLEDEP 0x00000004 /* Execution of commands depends on kids
192 * per line (::) */
193#define OP_OPMASK (OP_DEPENDS|OP_FORCE|OP_DOUBLEDEP)
194
195#define OP_OPTIONAL 0x00000008 /* Don't care if the target doesn't
196 * exist and can't be created */
197#define OP_USE 0x00000010 /* Use associated commands for parents */
198#define OP_EXEC 0x00000020 /* Target is never out of date, but always
199 * execute commands anyway. Its time
200 * doesn't matter, so it has none...sort
201 * of */
202#define OP_IGNORE 0x00000040 /* Ignore errors when creating the node */
203#define OP_PRECIOUS 0x00000080 /* Don't remove the target when
204 * interrupted */
205#define OP_SILENT 0x00000100 /* Don't echo commands when executed */
206#define OP_MAKE 0x00000200 /* Target is a recurrsive make so its
207 * commands should always be executed when
208 * it is out of date, regardless of the
209 * state of the -n or -t flags */
210#define OP_JOIN 0x00000400 /* Target is out-of-date only if any of its
211 * children was out-of-date */
212#define OP_INVISIBLE 0x00004000 /* The node is invisible to its parents.
213 * I.e. it doesn't show up in the parents's
214 * local variables. */
215#define OP_NOTMAIN 0x00008000 /* The node is exempt from normal 'main
216 * target' processing in parse.c */
217#define OP_PHONY 0x00010000 /* Not a file target; run always */
218/* Attributes applied by PMake */
219#define OP_TRANSFORM 0x80000000 /* The node is a transformation rule */
220#define OP_MEMBER 0x40000000 /* Target is a member of an archive */
221#define OP_LIB 0x20000000 /* Target is a library */
222#define OP_ARCHV 0x10000000 /* Target is an archive construct */
223#define OP_HAS_COMMANDS 0x08000000 /* Target has all the commands it should.
224 * Used when parsing to catch multiple
225 * commands for a target */
226#define OP_SAVE_CMDS 0x04000000 /* Saving commands on .END (Compat) */
227#define OP_DEPS_FOUND 0x02000000 /* Already processed by Suff_FindDeps */
228
229/*
230 * OP_NOP will return TRUE if the node with the given type was not the
231 * object of a dependency operator
232 */
233#define OP_NOP(t) (((t) & OP_OPMASK) == 0x00000000)
234
235/*
236 * The TARG_ constants are used when calling the Targ_FindNode and
237 * Targ_FindList functions in targ.c. They simply tell the functions what to
238 * do if the desired node(s) is (are) not found. If the TARG_CREATE constant
239 * is given, a new, empty node will be created for the target, placed in the
240 * table of all targets and its address returned. If TARG_NOCREATE is given,
241 * a NIL pointer will be returned.
242 */
243#define TARG_CREATE 0x01 /* create node if not found */
244#define TARG_NOCREATE 0x00 /* don't create it */
245
246/*
247 * There are several places where expandable buffers are used (parse.c and
248 * var.c). This constant is merely the starting point for those buffers. If
249 * lines tend to be much shorter than this, it would be best to reduce BSIZE.
250 * If longer, it should be increased. Reducing it will cause more copying to
251 * be done for longer lines, but will save space for shorter ones. In any
252 * case, it ought to be a power of two simply because most storage allocation
253 * schemes allocate in powers of two.
254 */
255#define MAKE_BSIZE 256 /* starting size for expandable buffers */
256
257/*
258 * These constants are all used by the Str_Concat function to decide how the
259 * final string should look. If STR_ADDSPACE is given, a space will be
260 * placed between the two strings. If STR_ADDSLASH is given, a '/' will
261 * be used instead of a space. If neither is given, no intervening characters
262 * will be placed between the two strings in the final output. If the
263 * STR_DOFREE bit is set, the two input strings will be freed before
264 * Str_Concat returns.
265 */
266#define STR_ADDSPACE 0x01 /* add a space when Str_Concat'ing */
267#define STR_DOFREE 0x02 /* free source strings after concatenation */
268#define STR_ADDSLASH 0x04 /* add a slash when Str_Concat'ing */
269
270/*
271 * Error levels for parsing. PARSE_FATAL means the process cannot continue
272 * once the makefile has been parsed. PARSE_WARNING means it can. Passed
273 * as the first argument to Parse_Error.
274 */
275#define PARSE_WARNING 2
276#define PARSE_FATAL 1
277
278/*
279 * Values returned by Cond_Eval.
280 */
281#define COND_PARSE 0 /* Parse the next lines */
282#define COND_SKIP 1 /* Skip the next lines */
283#define COND_INVALID 2 /* Not a conditional statement */
284
285/*
286 * Definitions for the "local" variables. Used only for clarity.
287 */
288#define TARGET "@" /* Target of dependency */
289#define OODATE "?" /* All out-of-date sources */
290#define ALLSRC ">" /* All sources */
291#define IMPSRC "<" /* Source implied by transformation */
292#define PREFIX "*" /* Common prefix */
293#define ARCHIVE "!" /* Archive in "archive(member)" syntax */
294#define MEMBER "%" /* Member in "archive(member)" syntax */
295
296#define FTARGET "@F" /* file part of TARGET */
297#define DTARGET "@D" /* directory part of TARGET */
298#define FIMPSRC "<F" /* file part of IMPSRC */
299#define DIMPSRC "<D" /* directory part of IMPSRC */
300#define FPREFIX "*F" /* file part of PREFIX */
301#define DPREFIX "*D" /* directory part of PREFIX */
302
303/*
304 * Global Variables
305 */
306extern Lst create; /* The list of target names specified on the
307 * command line. used to resolve #if
308 * make(...) statements */
309extern Lst dirSearchPath; /* The list of directories to search when
310 * looking for targets */
311
312extern Boolean compatMake; /* True if we are make compatible */
313extern Boolean ignoreErrors; /* True if should ignore all errors */
314extern Boolean beSilent; /* True if should print no commands */
315extern Boolean beVerbose; /* True if should print extra cruft */
316extern Boolean noExecute; /* True if should execute nothing */
317extern Boolean allPrecious; /* True if every target is precious */
318extern Boolean keepgoing; /* True if should continue on unaffected
319 * portions of the graph when have an error
320 * in one portion */
321extern Boolean touchFlag; /* TRUE if targets should just be 'touched'
322 * if out of date. Set by the -t flag */
323extern Boolean usePipes; /* TRUE if should capture the output of
324 * subshells by means of pipes. Otherwise it
325 * is routed to temporary files from which it
326 * is retrieved when the shell exits */
327extern Boolean queryFlag; /* TRUE if we aren't supposed to really make
328 * anything, just see if the targets are out-
329 * of-date */
330
331extern Boolean checkEnvFirst; /* TRUE if environment should be searched for
332 * all variables before the global context */
333extern Lst envFirstVars; /* List of specific variables for which the
334 * environment should be searched before the
335 * global context */
336
337extern GNode *DEFAULT; /* .DEFAULT rule */
338
339extern GNode *VAR_GLOBAL; /* Variables defined in a global context, e.g
340 * in the Makefile itself */
341extern GNode *VAR_CMD; /* Variables defined on the command line */
342extern char var_Error[]; /* Value returned by Var_Parse when an error
343 * is encountered. It actually points to
344 * an empty string, so naive callers needn't
345 * worry about it. */
346
347extern time_t now; /* The time at the start of this whole
348 * process */
349
350extern Boolean oldVars; /* Do old-style variable substitution */
351
352extern Lst sysIncPath; /* The system include path. */
353
354/*
355 * debug control:
356 * There is one bit per module. It is up to the module what debug
357 * information to print.
358 */
359extern int debug;
360#define DEBUG_ARCH 0x0001
361#define DEBUG_COND 0x0002
362#define DEBUG_DIR 0x0004
363#define DEBUG_GRAPH1 0x0008
364#define DEBUG_GRAPH2 0x0010
365#define DEBUG_JOB 0x0020
366#define DEBUG_MAKE 0x0040
367#define DEBUG_SUFF 0x0080
368#define DEBUG_TARG 0x0100
369#define DEBUG_VAR 0x0200
370#define DEBUG_FOR 0x0400
371#define DEBUG_LOUD 0x0800
372
373/*#ifdef __STDC__*/
374#if defined(__STDC__) || defined(__IBMC__)
375#define CONCAT(a,b) a##b
376#else
377#define I(a) a
378#define CONCAT(a,b) I(a)b
379#endif /* __STDC__ */
380
381
382
383#define DEBUG(module) (debug & CONCAT(DEBUG_,module))
384#define ISDOT(c) ((c)[0] == '.' && (((c)[1] == '\0') || ((c)[1] == '/')))
385#define ISDOTDOT(c) ((c)[0] == '.' && ISDOT(&((c)[1])))
386
387/*
388 * Since there are so many, all functions that return non-integer values are
389 * extracted by means of a sed script or two and stuck in the file "nonints.h"
390 */
391#include "nonints.h"
392
393int Make_TimeStamp __P((GNode *, GNode *));
394Boolean Make_OODate __P((GNode *));
395int Make_HandleUse __P((GNode *, GNode *));
396void Make_Update __P((GNode *));
397void Make_DoAllVar __P((GNode *));
398Boolean Make_Run __P((Lst));
399
400#endif /* _MAKE_H_ */
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