1 | /* Internals of variables for GNU Make.
|
---|
2 | Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
|
---|
3 | 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software
|
---|
4 | Foundation, Inc.
|
---|
5 | This file is part of GNU Make.
|
---|
6 |
|
---|
7 | GNU Make is free software; you can redistribute it and/or modify it under the
|
---|
8 | terms of the GNU General Public License as published by the Free Software
|
---|
9 | Foundation; either version 2, or (at your option) any later version.
|
---|
10 |
|
---|
11 | GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
|
---|
12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
|
---|
13 | A PARTICULAR PURPOSE. See the GNU General Public License for more details.
|
---|
14 |
|
---|
15 | You should have received a copy of the GNU General Public License along with
|
---|
16 | GNU Make; see the file COPYING. If not, write to the Free Software
|
---|
17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. */
|
---|
18 |
|
---|
19 | #include "make.h"
|
---|
20 |
|
---|
21 | #include <assert.h>
|
---|
22 |
|
---|
23 | #include "dep.h"
|
---|
24 | #include "filedef.h"
|
---|
25 | #include "job.h"
|
---|
26 | #include "commands.h"
|
---|
27 | #include "variable.h"
|
---|
28 | #include "rule.h"
|
---|
29 | #ifdef WINDOWS32
|
---|
30 | #include "pathstuff.h"
|
---|
31 | #endif
|
---|
32 | #include "hash.h"
|
---|
33 | #ifdef KMK
|
---|
34 | # include "kbuild.h"
|
---|
35 | #endif
|
---|
36 |
|
---|
37 | /* Chain of all pattern-specific variables. */
|
---|
38 |
|
---|
39 | static struct pattern_var *pattern_vars;
|
---|
40 |
|
---|
41 | /* Pointer to last struct in the chain, so we can add onto the end. */
|
---|
42 |
|
---|
43 | static struct pattern_var *last_pattern_var;
|
---|
44 |
|
---|
45 | /* Create a new pattern-specific variable struct. */
|
---|
46 |
|
---|
47 | struct pattern_var *
|
---|
48 | create_pattern_var (const char *target, const char *suffix)
|
---|
49 | {
|
---|
50 | register struct pattern_var *p = xmalloc (sizeof (struct pattern_var));
|
---|
51 |
|
---|
52 | if (last_pattern_var != 0)
|
---|
53 | last_pattern_var->next = p;
|
---|
54 | else
|
---|
55 | pattern_vars = p;
|
---|
56 | last_pattern_var = p;
|
---|
57 | p->next = 0;
|
---|
58 |
|
---|
59 | p->target = target;
|
---|
60 | p->len = strlen (target);
|
---|
61 | p->suffix = suffix + 1;
|
---|
62 |
|
---|
63 | return p;
|
---|
64 | }
|
---|
65 |
|
---|
66 | /* Look up a target in the pattern-specific variable list. */
|
---|
67 |
|
---|
68 | static struct pattern_var *
|
---|
69 | lookup_pattern_var (struct pattern_var *start, const char *target)
|
---|
70 | {
|
---|
71 | struct pattern_var *p;
|
---|
72 | unsigned int targlen = strlen(target);
|
---|
73 |
|
---|
74 | for (p = start ? start->next : pattern_vars; p != 0; p = p->next)
|
---|
75 | {
|
---|
76 | const char *stem;
|
---|
77 | unsigned int stemlen;
|
---|
78 |
|
---|
79 | if (p->len > targlen)
|
---|
80 | /* It can't possibly match. */
|
---|
81 | continue;
|
---|
82 |
|
---|
83 | /* From the lengths of the filename and the pattern parts,
|
---|
84 | find the stem: the part of the filename that matches the %. */
|
---|
85 | stem = target + (p->suffix - p->target - 1);
|
---|
86 | stemlen = targlen - p->len + 1;
|
---|
87 |
|
---|
88 | /* Compare the text in the pattern before the stem, if any. */
|
---|
89 | if (stem > target && !strneq (p->target, target, stem - target))
|
---|
90 | continue;
|
---|
91 |
|
---|
92 | /* Compare the text in the pattern after the stem, if any.
|
---|
93 | We could test simply using streq, but this way we compare the
|
---|
94 | first two characters immediately. This saves time in the very
|
---|
95 | common case where the first character matches because it is a
|
---|
96 | period. */
|
---|
97 | if (*p->suffix == stem[stemlen]
|
---|
98 | && (*p->suffix == '\0' || streq (&p->suffix[1], &stem[stemlen+1])))
|
---|
99 | break;
|
---|
100 | }
|
---|
101 |
|
---|
102 | return p;
|
---|
103 | }
|
---|
104 | |
---|
105 |
|
---|
106 | /* Hash table of all global variable definitions. */
|
---|
107 |
|
---|
108 | #if defined(VARIABLE_HASH) || defined(CONFIG_WITH_OPTIMIZATION_HACKS)
|
---|
109 | # ifdef _MSC_VER
|
---|
110 | # define inline _inline
|
---|
111 | typedef signed int int32_t;
|
---|
112 | typedef signed short int int16_t;
|
---|
113 | # endif
|
---|
114 | static inline unsigned long variable_hash_2i(register const char *var, register int length)
|
---|
115 | {
|
---|
116 | # define UPDATE_HASH(ch) hash = (ch) + (hash << 6) + (hash << 16) - hash
|
---|
117 | # ifndef CONFIG_WITH_OPTIMIZATION_HACKS
|
---|
118 | # if 1
|
---|
119 | register const unsigned char *uvar = (const unsigned char *)var;
|
---|
120 | register unsigned long hash = 0;
|
---|
121 | while (length-- > 0)
|
---|
122 | UPDATE_HASH(*uvar++);
|
---|
123 | return hash;
|
---|
124 | # else
|
---|
125 | return_STRING_N_HASH_2 (var, length);
|
---|
126 | # endif
|
---|
127 | # else /* CONFIG_WITH_OPTIMIZATION_HACKS */
|
---|
128 | register unsigned long hash = 0;
|
---|
129 | register const unsigned char *uvar = (const unsigned char *)var;
|
---|
130 | register const unsigned char *uvar_end = uvar + length;
|
---|
131 | switch (length)
|
---|
132 | {
|
---|
133 | default:
|
---|
134 | case 32: //UPDATE_HASH(uvar_end[-16]);
|
---|
135 | case 31: UPDATE_HASH(uvar_end[-15]);
|
---|
136 | case 30: //UPDATE_HASH(uvar_end[-14]);
|
---|
137 | case 29: UPDATE_HASH(uvar_end[-13]);
|
---|
138 | case 28: //UPDATE_HASH(uvar_end[-12]);
|
---|
139 | case 27: UPDATE_HASH(uvar_end[-11]);
|
---|
140 | case 26: //UPDATE_HASH(uvar_end[-10]);
|
---|
141 | case 25: UPDATE_HASH(uvar_end[-9]);
|
---|
142 | case 24: //UPDATE_HASH(uvar[15]);
|
---|
143 | case 23: UPDATE_HASH(uvar[14]);
|
---|
144 | case 22: //UPDATE_HASH(uvar[13]);
|
---|
145 | case 21: UPDATE_HASH(uvar[12]);
|
---|
146 | case 20: //UPDATE_HASH(uvar[11]);
|
---|
147 | case 19: UPDATE_HASH(uvar[10]);
|
---|
148 | case 18: //UPDATE_HASH(uvar[9]);
|
---|
149 | case 17: UPDATE_HASH(uvar[8]);
|
---|
150 | case 16: //UPDATE_HASH(uvar_end[-8]);
|
---|
151 | case 15: UPDATE_HASH(uvar_end[-7]);
|
---|
152 | case 14: //UPDATE_HASH(uvar_end[-6]);
|
---|
153 | case 13: UPDATE_HASH(uvar_end[-5]);
|
---|
154 | case 12: //UPDATE_HASH(uvar_end[-4]);
|
---|
155 | case 11: UPDATE_HASH(uvar_end[-3]);
|
---|
156 | case 10: //UPDATE_HASH(uvar_end[-2]);
|
---|
157 | case 9: UPDATE_HASH(uvar_end[-1]);
|
---|
158 | case 8: //UPDATE_HASH(uvar[7]);
|
---|
159 | case 7: UPDATE_HASH(uvar[6]);
|
---|
160 | case 6: //UPDATE_HASH(uvar[5]);
|
---|
161 | case 5: UPDATE_HASH(uvar[4]);
|
---|
162 | case 4: //UPDATE_HASH(uvar[3]);
|
---|
163 | case 3: UPDATE_HASH(uvar[2]);
|
---|
164 | case 2: //UPDATE_HASH(uvar[1]);
|
---|
165 | case 1: UPDATE_HASH(uvar[0]);
|
---|
166 | case 0:
|
---|
167 | return hash;
|
---|
168 | }
|
---|
169 | # endif /* CONFIG_WITH_OPTIMIZATION_HACKS*/
|
---|
170 | # undef UPDATE_HASH
|
---|
171 | }
|
---|
172 |
|
---|
173 | static inline unsigned long variable_hash_1i(register const char *var, register int length)
|
---|
174 | {
|
---|
175 | # define UPDATE_HASH(ch) hash = ((hash << 5) + hash) + (ch)
|
---|
176 | # ifndef CONFIG_WITH_OPTIMIZATION_HACKS
|
---|
177 | # if 1
|
---|
178 | register const unsigned char *uvar = (const unsigned char *)var;
|
---|
179 | register unsigned long hash = 5381;
|
---|
180 | while (length-- > 0)
|
---|
181 | UPDATE_HASH(*uvar++);
|
---|
182 | return hash;
|
---|
183 | # else
|
---|
184 | return_STRING_N_HASH_1 (var, length);
|
---|
185 | # endif
|
---|
186 | # else /* CONFIG_WITH_OPTIMIZATION_HACKS */
|
---|
187 | register const unsigned char *uvar = (const unsigned char *)var;
|
---|
188 | register const unsigned char *uvar_end = (const unsigned char *)var + length;
|
---|
189 | register unsigned long hash = ((5381 << 5) + 5381) + *uvar;
|
---|
190 | switch (length)
|
---|
191 | {
|
---|
192 | default:
|
---|
193 | #if 0 /* seems to be a waste of time. */
|
---|
194 | case 97: UPDATE_HASH(uvar_end[-77]);
|
---|
195 | case 96: //UPDATE_HASH(uvar_end[-76]);
|
---|
196 | case 95: //UPDATE_HASH(uvar_end[-75]);
|
---|
197 | case 94: //UPDATE_HASH(uvar_end[-74]);
|
---|
198 | case 93: UPDATE_HASH(uvar_end[-73]);
|
---|
199 | case 92: //UPDATE_HASH(uvar_end[-72]);
|
---|
200 | case 91: //UPDATE_HASH(uvar_end[-71]);
|
---|
201 | case 90: //UPDATE_HASH(uvar_end[-70]);
|
---|
202 | case 89: UPDATE_HASH(uvar_end[-69]);
|
---|
203 | case 88: //UPDATE_HASH(uvar_end[-68]);
|
---|
204 | case 87: //UPDATE_HASH(uvar_end[-67]);
|
---|
205 | case 86: //UPDATE_HASH(uvar_end[-66]);
|
---|
206 | case 85: UPDATE_HASH(uvar_end[-65]);
|
---|
207 | case 84: //UPDATE_HASH(uvar_end[-64]);
|
---|
208 | case 83: //UPDATE_HASH(uvar_end[-63]);
|
---|
209 | case 82: //UPDATE_HASH(uvar_end[-62]);
|
---|
210 | case 81: UPDATE_HASH(uvar_end[-61]);
|
---|
211 | case 80: //UPDATE_HASH(uvar_end[-60]);
|
---|
212 | case 79: //UPDATE_HASH(uvar_end[-59]);
|
---|
213 | case 78: //UPDATE_HASH(uvar_end[-58]);
|
---|
214 | case 77: UPDATE_HASH(uvar_end[-57]);
|
---|
215 | case 76: //UPDATE_HASH(uvar_end[-56]);
|
---|
216 | case 75: //UPDATE_HASH(uvar_end[-55]);
|
---|
217 | case 74: //UPDATE_HASH(uvar_end[-54]);
|
---|
218 | case 73: UPDATE_HASH(uvar_end[-53]);
|
---|
219 | case 72: //UPDATE_HASH(uvar_end[-52]);
|
---|
220 | case 71: //UPDATE_HASH(uvar_end[-51]);
|
---|
221 | case 70: //UPDATE_HASH(uvar_end[-50]);
|
---|
222 | case 69: UPDATE_HASH(uvar_end[-49]);
|
---|
223 | case 68: //UPDATE_HASH(uvar_end[-48]);
|
---|
224 | case 67: //UPDATE_HASH(uvar_end[-47]);
|
---|
225 | case 66: //UPDATE_HASH(uvar_end[-46]);
|
---|
226 | case 65: UPDATE_HASH(uvar_end[-49]);
|
---|
227 | case 64: //UPDATE_HASH(uvar_end[-48]);
|
---|
228 | case 63: //UPDATE_HASH(uvar_end[-47]);
|
---|
229 | case 62: //UPDATE_HASH(uvar_end[-46]);
|
---|
230 | case 61: UPDATE_HASH(uvar_end[-45]);
|
---|
231 | case 60: //UPDATE_HASH(uvar_end[-44]);
|
---|
232 | case 59: //UPDATE_HASH(uvar_end[-43]);
|
---|
233 | case 58: //UPDATE_HASH(uvar_end[-42]);
|
---|
234 | case 57: UPDATE_HASH(uvar_end[-41]);
|
---|
235 | case 56: //UPDATE_HASH(uvar_end[-40]);
|
---|
236 | case 55: //UPDATE_HASH(uvar_end[-39]);
|
---|
237 | case 54: //UPDATE_HASH(uvar_end[-38]);
|
---|
238 | case 53: UPDATE_HASH(uvar_end[-37]);
|
---|
239 | case 52: //UPDATE_HASH(uvar_end[-36]);
|
---|
240 | case 51: UPDATE_HASH(uvar_end[-35]);
|
---|
241 | case 50: //UPDATE_HASH(uvar_end[-34]);
|
---|
242 | case 49: UPDATE_HASH(uvar_end[-33]);
|
---|
243 | #endif
|
---|
244 | case 48: //UPDATE_HASH(uvar_end[-32]);
|
---|
245 | case 47: UPDATE_HASH(uvar_end[-31]);
|
---|
246 | case 46: //UPDATE_HASH(uvar_end[-30]);
|
---|
247 | case 45: UPDATE_HASH(uvar_end[-29]);
|
---|
248 | case 44: //UPDATE_HASH(uvar_end[-28]);
|
---|
249 | case 43: UPDATE_HASH(uvar_end[-27]);
|
---|
250 | case 42: //UPDATE_HASH(uvar_end[-26]);
|
---|
251 | case 41: UPDATE_HASH(uvar_end[-25]);
|
---|
252 | case 40: //UPDATE_HASH(uvar_end[-24]);
|
---|
253 | case 39: UPDATE_HASH(uvar_end[-23]);
|
---|
254 | case 38: //UPDATE_HASH(uvar_end[-22]);
|
---|
255 | case 37: UPDATE_HASH(uvar_end[-21]);
|
---|
256 | case 36: //UPDATE_HASH(uvar_end[-20]);
|
---|
257 | case 35: UPDATE_HASH(uvar_end[-19]);
|
---|
258 | case 34: //UPDATE_HASH(uvar_end[-18]);
|
---|
259 | case 33: UPDATE_HASH(uvar_end[-17]);
|
---|
260 |
|
---|
261 | case 32: UPDATE_HASH(uvar_end[-16]);
|
---|
262 | case 31: UPDATE_HASH(uvar_end[-15]);
|
---|
263 | case 30: UPDATE_HASH(uvar_end[-14]);
|
---|
264 | case 29: UPDATE_HASH(uvar_end[-13]);
|
---|
265 | case 28: UPDATE_HASH(uvar[15]);
|
---|
266 | case 27: UPDATE_HASH(uvar[14]);
|
---|
267 | case 26: UPDATE_HASH(uvar[13]);
|
---|
268 | case 25: UPDATE_HASH(uvar[12]);
|
---|
269 |
|
---|
270 | case 24: UPDATE_HASH(uvar_end[-12]);
|
---|
271 | case 23: UPDATE_HASH(uvar_end[-11]);
|
---|
272 | case 22: UPDATE_HASH(uvar_end[-10]);
|
---|
273 | case 21: UPDATE_HASH(uvar_end[-9]);
|
---|
274 | case 20: UPDATE_HASH(uvar[7]);
|
---|
275 | case 19: UPDATE_HASH(uvar[6]);
|
---|
276 | case 18: UPDATE_HASH(uvar[5]);
|
---|
277 | case 17: UPDATE_HASH(uvar[4]);
|
---|
278 |
|
---|
279 | case 16: UPDATE_HASH(uvar_end[-8]);
|
---|
280 | case 15: UPDATE_HASH(uvar_end[-7]);
|
---|
281 | case 14: UPDATE_HASH(uvar_end[-6]);
|
---|
282 | case 13: UPDATE_HASH(uvar_end[-5]);
|
---|
283 | case 12: UPDATE_HASH(uvar[11]);
|
---|
284 | case 11: UPDATE_HASH(uvar[10]);
|
---|
285 | case 10: UPDATE_HASH(uvar[9]);
|
---|
286 | case 9: UPDATE_HASH(uvar[8]);
|
---|
287 |
|
---|
288 | case 8: UPDATE_HASH(uvar_end[-4]);
|
---|
289 | case 7: UPDATE_HASH(uvar_end[-3]);
|
---|
290 | case 6: UPDATE_HASH(uvar_end[-2]);
|
---|
291 | case 5: UPDATE_HASH(uvar_end[-1]);
|
---|
292 | case 4: UPDATE_HASH(uvar[3]);
|
---|
293 | case 3: UPDATE_HASH(uvar[2]);
|
---|
294 | case 2: UPDATE_HASH(uvar[1]);
|
---|
295 | case 1: return hash;
|
---|
296 | case 0: return 5381; /* shouldn't happen */
|
---|
297 | }
|
---|
298 | # endif /* CONFIG_WITH_OPTIMIZATION_HACKS */
|
---|
299 | # undef UPDATE_HASH
|
---|
300 | }
|
---|
301 | #endif /* CONFIG_WITH_OPTIMIZATION_HACKS */
|
---|
302 |
|
---|
303 | static unsigned long
|
---|
304 | variable_hash_1 (const void *keyv)
|
---|
305 | {
|
---|
306 | struct variable const *key = (struct variable const *) keyv;
|
---|
307 | #ifdef VARIABLE_HASH /* bird */
|
---|
308 | # ifdef VARIABLE_HASH_STRICT
|
---|
309 | if (key->hash1 != variable_hash_1i (key->name, key->length))
|
---|
310 | __asm__("int3");
|
---|
311 | if (key->hash2 && key->hash2 != variable_hash_2i (key->name, key->length))
|
---|
312 | __asm__("int3");
|
---|
313 | # endif
|
---|
314 | return key->hash1;
|
---|
315 | #else
|
---|
316 | # ifdef CONFIG_WITH_OPTIMIZATION_HACKS
|
---|
317 | return variable_hash_1i (key->name, key->length);
|
---|
318 | # else
|
---|
319 | return_STRING_N_HASH_1 (key->name, key->length);
|
---|
320 | # endif
|
---|
321 | #endif
|
---|
322 | }
|
---|
323 |
|
---|
324 | static unsigned long
|
---|
325 | variable_hash_2 (const void *keyv)
|
---|
326 | {
|
---|
327 | #ifdef VARIABLE_HASH /* bird */
|
---|
328 | struct variable *key = (struct variable *) keyv;
|
---|
329 | if (!key->hash2)
|
---|
330 | key->hash2 = variable_hash_2i (key->name, key->length);
|
---|
331 | return key->hash2;
|
---|
332 | #else
|
---|
333 | struct variable const *key = (struct variable const *) keyv;
|
---|
334 | # ifdef CONFIG_WITH_OPTIMIZATION_HACKS
|
---|
335 | return variable_hash_2i (key->name, key->length);
|
---|
336 | # else
|
---|
337 | return_STRING_N_HASH_2 (key->name, key->length);
|
---|
338 | # endif
|
---|
339 | #endif
|
---|
340 | }
|
---|
341 |
|
---|
342 | static int
|
---|
343 | variable_hash_cmp (const void *xv, const void *yv)
|
---|
344 | {
|
---|
345 | struct variable const *x = (struct variable const *) xv;
|
---|
346 | struct variable const *y = (struct variable const *) yv;
|
---|
347 | int result = x->length - y->length;
|
---|
348 | if (result)
|
---|
349 | return result;
|
---|
350 | #ifdef VARIABLE_HASH
|
---|
351 | #ifdef VARIABLE_HASH_STRICT /* bird */
|
---|
352 | if (x->hash1 != variable_hash_1i (x->name, x->length))
|
---|
353 | __asm__("int3");
|
---|
354 | if (x->hash2 && x->hash2 != variable_hash_2i (x->name, x->length))
|
---|
355 | __asm__("int3");
|
---|
356 | if (y->hash1 != variable_hash_1i (y->name, y->length))
|
---|
357 | __asm__("int3");
|
---|
358 | if (y->hash2 && y->hash2 != variable_hash_2i (y->name, y->length))
|
---|
359 | __asm__("int3");
|
---|
360 | #endif
|
---|
361 | /* hash 1 */
|
---|
362 | result = x->hash1 - y->hash1;
|
---|
363 | if (result)
|
---|
364 | return result;
|
---|
365 | #endif
|
---|
366 | #ifdef CONFIG_WITH_OPTIMIZATION_HACKS /* bird: speed */
|
---|
367 | {
|
---|
368 | const char *xs = x->name;
|
---|
369 | const char *ys = y->name;
|
---|
370 | switch (x->length)
|
---|
371 | {
|
---|
372 | case 8:
|
---|
373 | result = *(int32_t*)(xs + 4) - *(int32_t*)(ys + 4);
|
---|
374 | if (result)
|
---|
375 | return result;
|
---|
376 | return *(int32_t*)xs - *(int32_t*)ys;
|
---|
377 | case 7:
|
---|
378 | result = xs[6] - ys[6];
|
---|
379 | if (result)
|
---|
380 | return result;
|
---|
381 | case 6:
|
---|
382 | result = *(int32_t*)xs - *(int32_t*)ys;
|
---|
383 | if (result)
|
---|
384 | return result;
|
---|
385 | return *(int16_t*)(xs + 4) - *(int16_t*)(ys + 4);
|
---|
386 | case 5:
|
---|
387 | result = xs[4] - ys[4];
|
---|
388 | if (result)
|
---|
389 | return result;
|
---|
390 | case 4:
|
---|
391 | return *(int32_t*)xs - *(int32_t*)ys;
|
---|
392 | case 3:
|
---|
393 | result = xs[2] - ys[2];
|
---|
394 | if (result)
|
---|
395 | return result;
|
---|
396 | case 2:
|
---|
397 | return *(int16_t*)xs - *(int16_t*)ys;
|
---|
398 | case 1:
|
---|
399 | return *xs - *ys;
|
---|
400 | case 0:
|
---|
401 | return 0;
|
---|
402 | }
|
---|
403 | }
|
---|
404 | #endif /* CONFIG_WITH_OPTIMIZATION_HACKS */
|
---|
405 | #ifdef VARIABLE_HASH
|
---|
406 | /* hash 2 */
|
---|
407 | if (!x->hash2)
|
---|
408 | ((struct variable *)x)->hash2 = variable_hash_2i (x->name, x->length);
|
---|
409 | if (!y->hash2)
|
---|
410 | ((struct variable *)y)->hash2 = variable_hash_2i (y->name, y->length);
|
---|
411 | result = x->hash2 - y->hash2;
|
---|
412 | if (result)
|
---|
413 | return result;
|
---|
414 | #endif
|
---|
415 | #ifdef CONFIG_WITH_OPTIMIZATION_HACKS
|
---|
416 | return memcmp (x->name, y->name, x->length);
|
---|
417 | #else
|
---|
418 | return_STRING_N_COMPARE (x->name, y->name, x->length);
|
---|
419 | #endif
|
---|
420 | }
|
---|
421 |
|
---|
422 | #ifndef VARIABLE_BUCKETS
|
---|
423 | # ifdef KMK /* Move to Makefile.kmk? (insanely high, but wtf, it gets the collitions down) */
|
---|
424 | # define VARIABLE_BUCKETS 65535
|
---|
425 | # else /*!KMK*/
|
---|
426 | #define VARIABLE_BUCKETS 523
|
---|
427 | # endif /*!KMK*/
|
---|
428 | #endif
|
---|
429 | #ifndef PERFILE_VARIABLE_BUCKETS
|
---|
430 | # ifdef KMK /* Move to Makefile.kmk? */
|
---|
431 | # define PERFILE_VARIABLE_BUCKETS 127
|
---|
432 | # else
|
---|
433 | #define PERFILE_VARIABLE_BUCKETS 23
|
---|
434 | # endif
|
---|
435 | #endif
|
---|
436 | #ifndef SMALL_SCOPE_VARIABLE_BUCKETS
|
---|
437 | # ifdef KMK /* Move to Makefile.kmk? */
|
---|
438 | # define SMALL_SCOPE_VARIABLE_BUCKETS 63
|
---|
439 | # else
|
---|
440 | #define SMALL_SCOPE_VARIABLE_BUCKETS 13
|
---|
441 | # endif
|
---|
442 | #endif
|
---|
443 |
|
---|
444 | static struct variable_set global_variable_set;
|
---|
445 | static struct variable_set_list global_setlist
|
---|
446 | = { 0, &global_variable_set };
|
---|
447 | struct variable_set_list *current_variable_set_list = &global_setlist;
|
---|
448 | |
---|
449 |
|
---|
450 | /* Implement variables. */
|
---|
451 |
|
---|
452 | void
|
---|
453 | init_hash_global_variable_set (void)
|
---|
454 | {
|
---|
455 | hash_init (&global_variable_set.table, VARIABLE_BUCKETS,
|
---|
456 | variable_hash_1, variable_hash_2, variable_hash_cmp);
|
---|
457 | }
|
---|
458 |
|
---|
459 | /* Define variable named NAME with value VALUE in SET. VALUE is copied.
|
---|
460 | LENGTH is the length of NAME, which does not need to be null-terminated.
|
---|
461 | ORIGIN specifies the origin of the variable (makefile, command line
|
---|
462 | or environment).
|
---|
463 | If RECURSIVE is nonzero a flag is set in the variable saying
|
---|
464 | that it should be recursively re-expanded. */
|
---|
465 |
|
---|
466 | #ifdef CONFIG_WITH_VALUE_LENGTH
|
---|
467 | struct variable *
|
---|
468 | define_variable_in_set (const char *name, unsigned int length,
|
---|
469 | const char *value, unsigned int value_length, int duplicate_value,
|
---|
470 | enum variable_origin origin, int recursive,
|
---|
471 | struct variable_set *set, const struct floc *flocp)
|
---|
472 | #else
|
---|
473 | struct variable *
|
---|
474 | define_variable_in_set (const char *name, unsigned int length,
|
---|
475 | const char *value, enum variable_origin origin,
|
---|
476 | int recursive, struct variable_set *set,
|
---|
477 | const struct floc *flocp)
|
---|
478 | #endif
|
---|
479 | {
|
---|
480 | struct variable *v;
|
---|
481 | struct variable **var_slot;
|
---|
482 | struct variable var_key;
|
---|
483 |
|
---|
484 | if (set == NULL)
|
---|
485 | set = &global_variable_set;
|
---|
486 |
|
---|
487 | var_key.name = (char *) name;
|
---|
488 | var_key.length = length;
|
---|
489 | #ifdef VARIABLE_HASH /* bird */
|
---|
490 | var_key.hash1 = variable_hash_1i (name, length);
|
---|
491 | var_key.hash2 = 0;
|
---|
492 | #endif
|
---|
493 | var_slot = (struct variable **) hash_find_slot (&set->table, &var_key);
|
---|
494 |
|
---|
495 | if (env_overrides && origin == o_env)
|
---|
496 | origin = o_env_override;
|
---|
497 |
|
---|
498 | v = *var_slot;
|
---|
499 | if (! HASH_VACANT (v))
|
---|
500 | {
|
---|
501 | if (env_overrides && v->origin == o_env)
|
---|
502 | /* V came from in the environment. Since it was defined
|
---|
503 | before the switches were parsed, it wasn't affected by -e. */
|
---|
504 | v->origin = o_env_override;
|
---|
505 |
|
---|
506 | /* A variable of this name is already defined.
|
---|
507 | If the old definition is from a stronger source
|
---|
508 | than this one, don't redefine it. */
|
---|
509 | if ((int) origin >= (int) v->origin)
|
---|
510 | {
|
---|
511 | #ifdef CONFIG_WITH_VALUE_LENGTH
|
---|
512 | if (value_length == ~0U)
|
---|
513 | value_length = strlen (value);
|
---|
514 | else
|
---|
515 | assert (value_length == strlen (value));
|
---|
516 | if (!duplicate_value)
|
---|
517 | {
|
---|
518 | if (v->value != 0)
|
---|
519 | free (v->value);
|
---|
520 | v->value = (char *)value;
|
---|
521 | v->value_alloc_len = value_length + 1;
|
---|
522 | }
|
---|
523 | else
|
---|
524 | {
|
---|
525 | if ((unsigned int)v->value_alloc_len <= value_length)
|
---|
526 | {
|
---|
527 | free (v->value);
|
---|
528 | v->value_alloc_len = (value_length + 0x40) & ~0x3f;
|
---|
529 | v->value = xmalloc (v->value_alloc_len);
|
---|
530 | }
|
---|
531 | memcpy (v->value, value, value_length + 1);
|
---|
532 | }
|
---|
533 | v->value_length = value_length;
|
---|
534 | #else
|
---|
535 | if (v->value != 0)
|
---|
536 | free (v->value);
|
---|
537 | v->value = xstrdup (value);
|
---|
538 | #endif
|
---|
539 | if (flocp != 0)
|
---|
540 | v->fileinfo = *flocp;
|
---|
541 | else
|
---|
542 | v->fileinfo.filenm = 0;
|
---|
543 | v->origin = origin;
|
---|
544 | v->recursive = recursive;
|
---|
545 | }
|
---|
546 | return v;
|
---|
547 | }
|
---|
548 |
|
---|
549 | /* Create a new variable definition and add it to the hash table. */
|
---|
550 |
|
---|
551 | v = xmalloc (sizeof (struct variable));
|
---|
552 | v->name = savestring (name, length);
|
---|
553 | v->length = length;
|
---|
554 | #ifdef VARIABLE_HASH /* bird */
|
---|
555 | v->hash1 = variable_hash_1i (name, length);
|
---|
556 | v->hash2 = 0;
|
---|
557 | #endif
|
---|
558 | hash_insert_at (&set->table, v, var_slot);
|
---|
559 | #ifdef CONFIG_WITH_VALUE_LENGTH
|
---|
560 | if (value_length == ~0U)
|
---|
561 | value_length = strlen (value);
|
---|
562 | else
|
---|
563 | assert (value_length == strlen (value));
|
---|
564 | v->value_length = value_length;
|
---|
565 | if (!duplicate_value)
|
---|
566 | {
|
---|
567 | v->value_alloc_len = value_length + 1;
|
---|
568 | v->value = (char *)value;
|
---|
569 | }
|
---|
570 | else
|
---|
571 | {
|
---|
572 | v->value_alloc_len = (value_length + 32) & ~31;
|
---|
573 | v->value = xmalloc (v->value_alloc_len);
|
---|
574 | memcpy (v->value, value, value_length + 1);
|
---|
575 | }
|
---|
576 | #else
|
---|
577 | v->value = xstrdup (value);
|
---|
578 | #endif
|
---|
579 | if (flocp != 0)
|
---|
580 | v->fileinfo = *flocp;
|
---|
581 | else
|
---|
582 | v->fileinfo.filenm = 0;
|
---|
583 | v->origin = origin;
|
---|
584 | v->recursive = recursive;
|
---|
585 | v->special = 0;
|
---|
586 | v->expanding = 0;
|
---|
587 | v->exp_count = 0;
|
---|
588 | v->per_target = 0;
|
---|
589 | v->append = 0;
|
---|
590 | v->export = v_default;
|
---|
591 |
|
---|
592 | v->exportable = 1;
|
---|
593 | if (*name != '_' && (*name < 'A' || *name > 'Z')
|
---|
594 | && (*name < 'a' || *name > 'z'))
|
---|
595 | v->exportable = 0;
|
---|
596 | else
|
---|
597 | {
|
---|
598 | for (++name; *name != '\0'; ++name)
|
---|
599 | if (*name != '_' && (*name < 'a' || *name > 'z')
|
---|
600 | && (*name < 'A' || *name > 'Z') && !ISDIGIT(*name))
|
---|
601 | break;
|
---|
602 |
|
---|
603 | if (*name != '\0')
|
---|
604 | v->exportable = 0;
|
---|
605 | }
|
---|
606 |
|
---|
607 | return v;
|
---|
608 | }
|
---|
609 | |
---|
610 |
|
---|
611 | /* If the variable passed in is "special", handle its special nature.
|
---|
612 | Currently there are two such variables, both used for introspection:
|
---|
613 | .VARIABLES expands to a list of all the variables defined in this instance
|
---|
614 | of make.
|
---|
615 | .TARGETS expands to a list of all the targets defined in this
|
---|
616 | instance of make.
|
---|
617 | Returns the variable reference passed in. */
|
---|
618 |
|
---|
619 | #define EXPANSION_INCREMENT(_l) ((((_l) / 500) + 1) * 500)
|
---|
620 |
|
---|
621 | static struct variable *
|
---|
622 | handle_special_var (struct variable *var)
|
---|
623 | {
|
---|
624 | static unsigned long last_var_count = 0;
|
---|
625 |
|
---|
626 |
|
---|
627 | /* This one actually turns out to be very hard, due to the way the parser
|
---|
628 | records targets. The way it works is that target information is collected
|
---|
629 | internally until make knows the target is completely specified. It unitl
|
---|
630 | it sees that some new construct (a new target or variable) is defined that
|
---|
631 | it knows the previous one is done. In short, this means that if you do
|
---|
632 | this:
|
---|
633 |
|
---|
634 | all:
|
---|
635 |
|
---|
636 | TARGS := $(.TARGETS)
|
---|
637 |
|
---|
638 | then $(TARGS) won't contain "all", because it's not until after the
|
---|
639 | variable is created that the previous target is completed.
|
---|
640 |
|
---|
641 | Changing this would be a major pain. I think a less complex way to do it
|
---|
642 | would be to pre-define the target files as soon as the first line is
|
---|
643 | parsed, then come back and do the rest of the definition as now. That
|
---|
644 | would allow $(.TARGETS) to be correct without a major change to the way
|
---|
645 | the parser works.
|
---|
646 |
|
---|
647 | if (streq (var->name, ".TARGETS"))
|
---|
648 | var->value = build_target_list (var->value);
|
---|
649 | else
|
---|
650 | */
|
---|
651 |
|
---|
652 | if (streq (var->name, ".VARIABLES")
|
---|
653 | && global_variable_set.table.ht_fill != last_var_count)
|
---|
654 | {
|
---|
655 | unsigned long max = EXPANSION_INCREMENT (strlen (var->value));
|
---|
656 | unsigned long len;
|
---|
657 | char *p;
|
---|
658 | struct variable **vp = (struct variable **) global_variable_set.table.ht_vec;
|
---|
659 | struct variable **end = &vp[global_variable_set.table.ht_size];
|
---|
660 |
|
---|
661 | /* Make sure we have at least MAX bytes in the allocated buffer. */
|
---|
662 | var->value = xrealloc (var->value, max);
|
---|
663 |
|
---|
664 | /* Walk through the hash of variables, constructing a list of names. */
|
---|
665 | p = var->value;
|
---|
666 | len = 0;
|
---|
667 | for (; vp < end; ++vp)
|
---|
668 | if (!HASH_VACANT (*vp))
|
---|
669 | {
|
---|
670 | struct variable *v = *vp;
|
---|
671 | int l = v->length;
|
---|
672 |
|
---|
673 | len += l + 1;
|
---|
674 | if (len > max)
|
---|
675 | {
|
---|
676 | unsigned long off = p - var->value;
|
---|
677 |
|
---|
678 | max += EXPANSION_INCREMENT (l + 1);
|
---|
679 | var->value = xrealloc (var->value, max);
|
---|
680 | p = &var->value[off];
|
---|
681 | }
|
---|
682 |
|
---|
683 | memcpy (p, v->name, l);
|
---|
684 | p += l;
|
---|
685 | *(p++) = ' ';
|
---|
686 | }
|
---|
687 | *(p-1) = '\0';
|
---|
688 |
|
---|
689 | /* Remember how many variables are in our current count. Since we never
|
---|
690 | remove variables from the list, this is a reliable way to know whether
|
---|
691 | the list is up to date or needs to be recomputed. */
|
---|
692 |
|
---|
693 | last_var_count = global_variable_set.table.ht_fill;
|
---|
694 | }
|
---|
695 |
|
---|
696 | return var;
|
---|
697 | }
|
---|
698 |
|
---|
699 | |
---|
700 |
|
---|
701 | /* Lookup a variable whose name is a string starting at NAME
|
---|
702 | and with LENGTH chars. NAME need not be null-terminated.
|
---|
703 | Returns address of the `struct variable' containing all info
|
---|
704 | on the variable, or nil if no such variable is defined. */
|
---|
705 |
|
---|
706 | struct variable *
|
---|
707 | lookup_variable (const char *name, unsigned int length)
|
---|
708 | {
|
---|
709 | const struct variable_set_list *setlist;
|
---|
710 | struct variable var_key;
|
---|
711 |
|
---|
712 | var_key.name = (char *) name;
|
---|
713 | var_key.length = length;
|
---|
714 | #ifdef VARIABLE_HASH /* bird */
|
---|
715 | var_key.hash1 = variable_hash_1i (name, length);
|
---|
716 | var_key.hash2 = 0;
|
---|
717 | #endif
|
---|
718 |
|
---|
719 | for (setlist = current_variable_set_list;
|
---|
720 | setlist != 0; setlist = setlist->next)
|
---|
721 | {
|
---|
722 | #ifdef VARIABLE_HASH /* bird: speed */
|
---|
723 | struct hash_table *ht = &setlist->set->table;
|
---|
724 | unsigned int hash_1 = var_key.hash1;
|
---|
725 | struct variable *v;
|
---|
726 |
|
---|
727 | ht->ht_lookups++;
|
---|
728 | for (;;)
|
---|
729 | {
|
---|
730 | hash_1 &= (ht->ht_size - 1);
|
---|
731 | v = (struct variable *)ht->ht_vec[hash_1];
|
---|
732 |
|
---|
733 | if (v == 0)
|
---|
734 | break;
|
---|
735 | if ((void *)v != hash_deleted_item)
|
---|
736 | {
|
---|
737 | if (variable_hash_cmp(&var_key, v) == 0)
|
---|
738 | {
|
---|
739 | # ifdef VARIABLE_HASH_STRICT /* bird */
|
---|
740 | struct variable *v2 = (struct variable *) hash_find_item ((struct hash_table *) &setlist->set->table, &var_key);
|
---|
741 | assert(v2 == v);
|
---|
742 | # endif
|
---|
743 | return v->special ? handle_special_var (v) : v;
|
---|
744 | }
|
---|
745 | ht->ht_collisions++;
|
---|
746 | }
|
---|
747 | if (!var_key.hash2)
|
---|
748 | var_key.hash2 = variable_hash_2i(name, length);
|
---|
749 | hash_1 += (var_key.hash2 | 1);
|
---|
750 | }
|
---|
751 |
|
---|
752 | #else /* !VARIABLE_HASH */
|
---|
753 | const struct variable_set *set = setlist->set;
|
---|
754 | struct variable *v;
|
---|
755 |
|
---|
756 | v = (struct variable *) hash_find_item ((struct hash_table *) &set->table, &var_key);
|
---|
757 | if (v)
|
---|
758 | return v->special ? handle_special_var (v) : v;
|
---|
759 | #endif /* !VARIABLE_HASH */
|
---|
760 | }
|
---|
761 |
|
---|
762 | #ifdef VMS
|
---|
763 | /* since we don't read envp[] on startup, try to get the
|
---|
764 | variable via getenv() here. */
|
---|
765 | {
|
---|
766 | char *vname = alloca (length + 1);
|
---|
767 | char *value;
|
---|
768 | strncpy (vname, name, length);
|
---|
769 | vname[length] = 0;
|
---|
770 | value = getenv (vname);
|
---|
771 | if (value != 0)
|
---|
772 | {
|
---|
773 | char *sptr;
|
---|
774 | int scnt;
|
---|
775 |
|
---|
776 | sptr = value;
|
---|
777 | scnt = 0;
|
---|
778 |
|
---|
779 | while ((sptr = strchr (sptr, '$')))
|
---|
780 | {
|
---|
781 | scnt++;
|
---|
782 | sptr++;
|
---|
783 | }
|
---|
784 |
|
---|
785 | if (scnt > 0)
|
---|
786 | {
|
---|
787 | char *nvalue;
|
---|
788 | char *nptr;
|
---|
789 |
|
---|
790 | nvalue = alloca (strlen (value) + scnt + 1);
|
---|
791 | sptr = value;
|
---|
792 | nptr = nvalue;
|
---|
793 |
|
---|
794 | while (*sptr)
|
---|
795 | {
|
---|
796 | if (*sptr == '$')
|
---|
797 | {
|
---|
798 | *nptr++ = '$';
|
---|
799 | *nptr++ = '$';
|
---|
800 | }
|
---|
801 | else
|
---|
802 | {
|
---|
803 | *nptr++ = *sptr;
|
---|
804 | }
|
---|
805 | sptr++;
|
---|
806 | }
|
---|
807 |
|
---|
808 | *nptr = '\0';
|
---|
809 | return define_variable (vname, length, nvalue, o_env, 1);
|
---|
810 |
|
---|
811 | }
|
---|
812 |
|
---|
813 | return define_variable (vname, length, value, o_env, 1);
|
---|
814 | }
|
---|
815 | }
|
---|
816 | #endif /* VMS */
|
---|
817 |
|
---|
818 | return 0;
|
---|
819 | }
|
---|
820 | |
---|
821 |
|
---|
822 | /* Lookup a variable whose name is a string starting at NAME
|
---|
823 | and with LENGTH chars in set SET. NAME need not be null-terminated.
|
---|
824 | Returns address of the `struct variable' containing all info
|
---|
825 | on the variable, or nil if no such variable is defined. */
|
---|
826 |
|
---|
827 | struct variable *
|
---|
828 | lookup_variable_in_set (const char *name, unsigned int length,
|
---|
829 | const struct variable_set *set)
|
---|
830 | {
|
---|
831 | struct variable var_key;
|
---|
832 |
|
---|
833 | var_key.name = (char *) name;
|
---|
834 | var_key.length = length;
|
---|
835 | #ifdef VARIABLE_HASH /* bird */
|
---|
836 | var_key.hash1 = variable_hash_1i (name, length);
|
---|
837 | var_key.hash2 = 0;
|
---|
838 | #endif
|
---|
839 |
|
---|
840 | return (struct variable *) hash_find_item ((struct hash_table *) &set->table, &var_key);
|
---|
841 | }
|
---|
842 | |
---|
843 |
|
---|
844 | /* Initialize FILE's variable set list. If FILE already has a variable set
|
---|
845 | list, the topmost variable set is left intact, but the the rest of the
|
---|
846 | chain is replaced with FILE->parent's setlist. If FILE is a double-colon
|
---|
847 | rule, then we will use the "root" double-colon target's variable set as the
|
---|
848 | parent of FILE's variable set.
|
---|
849 |
|
---|
850 | If we're READING a makefile, don't do the pattern variable search now,
|
---|
851 | since the pattern variable might not have been defined yet. */
|
---|
852 |
|
---|
853 | void
|
---|
854 | initialize_file_variables (struct file *file, int reading)
|
---|
855 | {
|
---|
856 | struct variable_set_list *l = file->variables;
|
---|
857 |
|
---|
858 | if (l == 0)
|
---|
859 | {
|
---|
860 | l = (struct variable_set_list *)
|
---|
861 | xmalloc (sizeof (struct variable_set_list));
|
---|
862 | l->set = xmalloc (sizeof (struct variable_set));
|
---|
863 | hash_init (&l->set->table, PERFILE_VARIABLE_BUCKETS,
|
---|
864 | variable_hash_1, variable_hash_2, variable_hash_cmp);
|
---|
865 | file->variables = l;
|
---|
866 | }
|
---|
867 |
|
---|
868 | /* If this is a double-colon, then our "parent" is the "root" target for
|
---|
869 | this double-colon rule. Since that rule has the same name, parent,
|
---|
870 | etc. we can just use its variables as the "next" for ours. */
|
---|
871 |
|
---|
872 | if (file->double_colon && file->double_colon != file)
|
---|
873 | {
|
---|
874 | initialize_file_variables (file->double_colon, reading);
|
---|
875 | l->next = file->double_colon->variables;
|
---|
876 | return;
|
---|
877 | }
|
---|
878 |
|
---|
879 | if (file->parent == 0)
|
---|
880 | l->next = &global_setlist;
|
---|
881 | else
|
---|
882 | {
|
---|
883 | initialize_file_variables (file->parent, reading);
|
---|
884 | l->next = file->parent->variables;
|
---|
885 | }
|
---|
886 |
|
---|
887 | /* If we're not reading makefiles and we haven't looked yet, see if
|
---|
888 | we can find pattern variables for this target. */
|
---|
889 |
|
---|
890 | if (!reading && !file->pat_searched)
|
---|
891 | {
|
---|
892 | struct pattern_var *p;
|
---|
893 |
|
---|
894 | p = lookup_pattern_var (0, file->name);
|
---|
895 | if (p != 0)
|
---|
896 | {
|
---|
897 | struct variable_set_list *global = current_variable_set_list;
|
---|
898 |
|
---|
899 | /* We found at least one. Set up a new variable set to accumulate
|
---|
900 | all the pattern variables that match this target. */
|
---|
901 |
|
---|
902 | file->pat_variables = create_new_variable_set ();
|
---|
903 | current_variable_set_list = file->pat_variables;
|
---|
904 |
|
---|
905 | do
|
---|
906 | {
|
---|
907 | /* We found one, so insert it into the set. */
|
---|
908 |
|
---|
909 | struct variable *v;
|
---|
910 |
|
---|
911 | if (p->variable.flavor == f_simple)
|
---|
912 | {
|
---|
913 | v = define_variable_loc (
|
---|
914 | p->variable.name, strlen (p->variable.name),
|
---|
915 | p->variable.value, p->variable.origin,
|
---|
916 | 0, &p->variable.fileinfo);
|
---|
917 |
|
---|
918 | v->flavor = f_simple;
|
---|
919 | }
|
---|
920 | else
|
---|
921 | {
|
---|
922 | v = do_variable_definition (
|
---|
923 | &p->variable.fileinfo, p->variable.name,
|
---|
924 | p->variable.value, p->variable.origin,
|
---|
925 | p->variable.flavor, 1);
|
---|
926 | }
|
---|
927 |
|
---|
928 | /* Also mark it as a per-target and copy export status. */
|
---|
929 | v->per_target = p->variable.per_target;
|
---|
930 | v->export = p->variable.export;
|
---|
931 | }
|
---|
932 | while ((p = lookup_pattern_var (p, file->name)) != 0);
|
---|
933 |
|
---|
934 | current_variable_set_list = global;
|
---|
935 | }
|
---|
936 | file->pat_searched = 1;
|
---|
937 | }
|
---|
938 |
|
---|
939 | /* If we have a pattern variable match, set it up. */
|
---|
940 |
|
---|
941 | if (file->pat_variables != 0)
|
---|
942 | {
|
---|
943 | file->pat_variables->next = l->next;
|
---|
944 | l->next = file->pat_variables;
|
---|
945 | }
|
---|
946 | }
|
---|
947 | |
---|
948 |
|
---|
949 | /* Pop the top set off the current variable set list,
|
---|
950 | and free all its storage. */
|
---|
951 |
|
---|
952 | struct variable_set_list *
|
---|
953 | create_new_variable_set (void)
|
---|
954 | {
|
---|
955 | register struct variable_set_list *setlist;
|
---|
956 | register struct variable_set *set;
|
---|
957 |
|
---|
958 | set = xmalloc (sizeof (struct variable_set));
|
---|
959 | hash_init (&set->table, SMALL_SCOPE_VARIABLE_BUCKETS,
|
---|
960 | variable_hash_1, variable_hash_2, variable_hash_cmp);
|
---|
961 |
|
---|
962 | setlist = (struct variable_set_list *)
|
---|
963 | xmalloc (sizeof (struct variable_set_list));
|
---|
964 | setlist->set = set;
|
---|
965 | setlist->next = current_variable_set_list;
|
---|
966 |
|
---|
967 | return setlist;
|
---|
968 | }
|
---|
969 |
|
---|
970 | static void
|
---|
971 | free_variable_name_and_value (const void *item)
|
---|
972 | {
|
---|
973 | struct variable *v = (struct variable *) item;
|
---|
974 | free (v->name);
|
---|
975 | free (v->value);
|
---|
976 | }
|
---|
977 |
|
---|
978 | void
|
---|
979 | free_variable_set (struct variable_set_list *list)
|
---|
980 | {
|
---|
981 | hash_map (&list->set->table, free_variable_name_and_value);
|
---|
982 | hash_free (&list->set->table, 1);
|
---|
983 | free (list->set);
|
---|
984 | free (list);
|
---|
985 | }
|
---|
986 |
|
---|
987 | /* Create a new variable set and push it on the current setlist.
|
---|
988 | If we're pushing a global scope (that is, the current scope is the global
|
---|
989 | scope) then we need to "push" it the other way: file variable sets point
|
---|
990 | directly to the global_setlist so we need to replace that with the new one.
|
---|
991 | */
|
---|
992 |
|
---|
993 | struct variable_set_list *
|
---|
994 | push_new_variable_scope (void)
|
---|
995 | {
|
---|
996 | current_variable_set_list = create_new_variable_set();
|
---|
997 | if (current_variable_set_list->next == &global_setlist)
|
---|
998 | {
|
---|
999 | /* It was the global, so instead of new -> &global we want to replace
|
---|
1000 | &global with the new one and have &global -> new, with current still
|
---|
1001 | pointing to &global */
|
---|
1002 | struct variable_set *set = current_variable_set_list->set;
|
---|
1003 | current_variable_set_list->set = global_setlist.set;
|
---|
1004 | global_setlist.set = set;
|
---|
1005 | current_variable_set_list->next = global_setlist.next;
|
---|
1006 | global_setlist.next = current_variable_set_list;
|
---|
1007 | current_variable_set_list = &global_setlist;
|
---|
1008 | }
|
---|
1009 | return (current_variable_set_list);
|
---|
1010 | }
|
---|
1011 |
|
---|
1012 | void
|
---|
1013 | pop_variable_scope (void)
|
---|
1014 | {
|
---|
1015 | struct variable_set_list *setlist;
|
---|
1016 | struct variable_set *set;
|
---|
1017 |
|
---|
1018 | /* Can't call this if there's no scope to pop! */
|
---|
1019 | assert(current_variable_set_list->next != NULL);
|
---|
1020 |
|
---|
1021 | if (current_variable_set_list != &global_setlist)
|
---|
1022 | {
|
---|
1023 | /* We're not pointing to the global setlist, so pop this one. */
|
---|
1024 | setlist = current_variable_set_list;
|
---|
1025 | set = setlist->set;
|
---|
1026 | current_variable_set_list = setlist->next;
|
---|
1027 | }
|
---|
1028 | else
|
---|
1029 | {
|
---|
1030 | /* This set is the one in the global_setlist, but there is another global
|
---|
1031 | set beyond that. We want to copy that set to global_setlist, then
|
---|
1032 | delete what used to be in global_setlist. */
|
---|
1033 | setlist = global_setlist.next;
|
---|
1034 | set = global_setlist.set;
|
---|
1035 | global_setlist.set = setlist->set;
|
---|
1036 | global_setlist.next = setlist->next;
|
---|
1037 | }
|
---|
1038 |
|
---|
1039 | /* Free the one we no longer need. */
|
---|
1040 | free (setlist);
|
---|
1041 | hash_map (&set->table, free_variable_name_and_value);
|
---|
1042 | hash_free (&set->table, 1);
|
---|
1043 | free (set);
|
---|
1044 | }
|
---|
1045 | |
---|
1046 |
|
---|
1047 | /* Merge FROM_SET into TO_SET, freeing unused storage in FROM_SET. */
|
---|
1048 |
|
---|
1049 | static void
|
---|
1050 | merge_variable_sets (struct variable_set *to_set,
|
---|
1051 | struct variable_set *from_set)
|
---|
1052 | {
|
---|
1053 | struct variable **from_var_slot = (struct variable **) from_set->table.ht_vec;
|
---|
1054 | struct variable **from_var_end = from_var_slot + from_set->table.ht_size;
|
---|
1055 |
|
---|
1056 | for ( ; from_var_slot < from_var_end; from_var_slot++)
|
---|
1057 | if (! HASH_VACANT (*from_var_slot))
|
---|
1058 | {
|
---|
1059 | struct variable *from_var = *from_var_slot;
|
---|
1060 | struct variable **to_var_slot
|
---|
1061 | = (struct variable **) hash_find_slot (&to_set->table, *from_var_slot);
|
---|
1062 | if (HASH_VACANT (*to_var_slot))
|
---|
1063 | hash_insert_at (&to_set->table, from_var, to_var_slot);
|
---|
1064 | else
|
---|
1065 | {
|
---|
1066 | /* GKM FIXME: delete in from_set->table */
|
---|
1067 | free (from_var->value);
|
---|
1068 | free (from_var);
|
---|
1069 | }
|
---|
1070 | }
|
---|
1071 | }
|
---|
1072 |
|
---|
1073 | /* Merge SETLIST1 into SETLIST0, freeing unused storage in SETLIST1. */
|
---|
1074 |
|
---|
1075 | void
|
---|
1076 | merge_variable_set_lists (struct variable_set_list **setlist0,
|
---|
1077 | struct variable_set_list *setlist1)
|
---|
1078 | {
|
---|
1079 | struct variable_set_list *to = *setlist0;
|
---|
1080 | struct variable_set_list *last0 = 0;
|
---|
1081 |
|
---|
1082 | /* If there's nothing to merge, stop now. */
|
---|
1083 | if (!setlist1)
|
---|
1084 | return;
|
---|
1085 |
|
---|
1086 | /* This loop relies on the fact that all setlists terminate with the global
|
---|
1087 | setlist (before NULL). If that's not true, arguably we SHOULD die. */
|
---|
1088 | if (to)
|
---|
1089 | while (setlist1 != &global_setlist && to != &global_setlist)
|
---|
1090 | {
|
---|
1091 | struct variable_set_list *from = setlist1;
|
---|
1092 | setlist1 = setlist1->next;
|
---|
1093 |
|
---|
1094 | merge_variable_sets (to->set, from->set);
|
---|
1095 |
|
---|
1096 | last0 = to;
|
---|
1097 | to = to->next;
|
---|
1098 | }
|
---|
1099 |
|
---|
1100 | if (setlist1 != &global_setlist)
|
---|
1101 | {
|
---|
1102 | if (last0 == 0)
|
---|
1103 | *setlist0 = setlist1;
|
---|
1104 | else
|
---|
1105 | last0->next = setlist1;
|
---|
1106 | }
|
---|
1107 | }
|
---|
1108 | |
---|
1109 |
|
---|
1110 | /* Define the automatic variables, and record the addresses
|
---|
1111 | of their structures so we can change their values quickly. */
|
---|
1112 |
|
---|
1113 | void
|
---|
1114 | define_automatic_variables (void)
|
---|
1115 | {
|
---|
1116 | #if defined(WINDOWS32) || defined(__EMX__)
|
---|
1117 | extern char* default_shell;
|
---|
1118 | #else
|
---|
1119 | extern char default_shell[];
|
---|
1120 | #endif
|
---|
1121 | register struct variable *v;
|
---|
1122 | #ifndef KMK
|
---|
1123 | char buf[200];
|
---|
1124 | #else
|
---|
1125 | char buf[1024];
|
---|
1126 | const char *val;
|
---|
1127 | struct variable *envvar1;
|
---|
1128 | struct variable *envvar2;
|
---|
1129 | #endif
|
---|
1130 |
|
---|
1131 | sprintf (buf, "%u", makelevel);
|
---|
1132 | (void) define_variable (MAKELEVEL_NAME, MAKELEVEL_LENGTH, buf, o_env, 0);
|
---|
1133 |
|
---|
1134 | sprintf (buf, "%s%s%s",
|
---|
1135 | version_string,
|
---|
1136 | (remote_description == 0 || remote_description[0] == '\0')
|
---|
1137 | ? "" : "-",
|
---|
1138 | (remote_description == 0 || remote_description[0] == '\0')
|
---|
1139 | ? "" : remote_description);
|
---|
1140 | #ifndef KMK
|
---|
1141 | (void) define_variable ("MAKE_VERSION", 12, buf, o_default, 0);
|
---|
1142 | #else /* KMK */
|
---|
1143 |
|
---|
1144 | /* Define KMK_VERSION to indicate kMk. */
|
---|
1145 | (void) define_variable ("KMK_VERSION", 11, buf, o_default, 0);
|
---|
1146 |
|
---|
1147 | /* Define KBUILD_VERSION* */
|
---|
1148 | sprintf (buf, "%d", KBUILD_VERSION_MAJOR);
|
---|
1149 | define_variable ("KBUILD_VERSION_MAJOR", sizeof ("KBUILD_VERSION_MAJOR") - 1,
|
---|
1150 | buf, o_default, 0);
|
---|
1151 | sprintf (buf, "%d", KBUILD_VERSION_MINOR);
|
---|
1152 | define_variable ("KBUILD_VERSION_MINOR", sizeof("KBUILD_VERSION_MINOR") - 1,
|
---|
1153 | buf, o_default, 0);
|
---|
1154 | sprintf (buf, "%d", KBUILD_VERSION_PATCH);
|
---|
1155 | define_variable ("KBUILD_VERSION_PATCH", sizeof ("KBUILD_VERSION_PATCH") - 1,
|
---|
1156 | buf, o_default, 0);
|
---|
1157 | sprintf (buf, "%d", KBUILD_SVN_REV);
|
---|
1158 | define_variable ("KBUILD_KMK_REVISION", sizeof ("KBUILD_KMK_REVISION") - 1,
|
---|
1159 | buf, o_default, 0);
|
---|
1160 |
|
---|
1161 | sprintf (buf, "%d.%d.%d-r%d", KBUILD_VERSION_MAJOR, KBUILD_VERSION_MINOR,
|
---|
1162 | KBUILD_VERSION_PATCH, KBUILD_SVN_REV);
|
---|
1163 | define_variable ("KBUILD_VERSION", sizeof ("KBUILD_VERSION") - 1,
|
---|
1164 | buf, o_default, 0);
|
---|
1165 |
|
---|
1166 | /* The host defaults. The BUILD_* stuff will be replaced by KBUILD_* soon. */
|
---|
1167 | envvar1 = lookup_variable (STRING_SIZE_TUPLE ("KBUILD_HOST"));
|
---|
1168 | envvar2 = lookup_variable (STRING_SIZE_TUPLE ("BUILD_PLATFORM"));
|
---|
1169 | val = envvar1 ? envvar1->value : envvar2 ? envvar2->value : KBUILD_HOST;
|
---|
1170 | if (envvar1 && envvar2 && strcmp (envvar1->value, envvar2->value))
|
---|
1171 | error (NULL, _("KBUILD_HOST and BUILD_PLATFORM differs, using KBUILD_HOST=%s."), val);
|
---|
1172 | if (!envvar1)
|
---|
1173 | define_variable ("KBUILD_HOST", sizeof ("KBUILD_HOST") - 1,
|
---|
1174 | val, o_default, 0);
|
---|
1175 | if (!envvar2)
|
---|
1176 | define_variable ("BUILD_PLATFORM", sizeof ("BUILD_PLATFORM") - 1,
|
---|
1177 | val, o_default, 0);
|
---|
1178 |
|
---|
1179 | envvar1 = lookup_variable (STRING_SIZE_TUPLE ("KBUILD_HOST_ARCH"));
|
---|
1180 | envvar2 = lookup_variable (STRING_SIZE_TUPLE ("BUILD_PLATFORM_ARCH"));
|
---|
1181 | val = envvar1 ? envvar1->value : envvar2 ? envvar2->value : KBUILD_HOST_ARCH;
|
---|
1182 | if (envvar1 && envvar2 && strcmp (envvar1->value, envvar2->value))
|
---|
1183 | error (NULL, _("KBUILD_HOST_ARCH and BUILD_PLATFORM_ARCH differs, using KBUILD_HOST_ARCH=%s."), val);
|
---|
1184 | if (!envvar1)
|
---|
1185 | define_variable ("KBUILD_HOST_ARCH", sizeof ("KBUILD_HOST_ARCH") - 1,
|
---|
1186 | val, o_default, 0);
|
---|
1187 | if (!envvar2)
|
---|
1188 | define_variable ("BUILD_PLATFORM_ARCH", sizeof ("BUILD_PLATFORM_ARCH") - 1,
|
---|
1189 | val, o_default, 0);
|
---|
1190 |
|
---|
1191 | envvar1 = lookup_variable (STRING_SIZE_TUPLE ("KBUILD_HOST_CPU"));
|
---|
1192 | envvar2 = lookup_variable (STRING_SIZE_TUPLE ("BUILD_PLATFORM_CPU"));
|
---|
1193 | val = envvar1 ? envvar1->value : envvar2 ? envvar2->value : KBUILD_HOST_CPU;
|
---|
1194 | if (envvar1 && envvar2 && strcmp (envvar1->value, envvar2->value))
|
---|
1195 | error (NULL, _("KBUILD_HOST_CPU and BUILD_PLATFORM_CPU differs, using KBUILD_HOST_CPU=%s."), val);
|
---|
1196 | if (!envvar1)
|
---|
1197 | define_variable ("KBUILD_HOST_CPU", sizeof ("KBUILD_HOST_CPU") - 1,
|
---|
1198 | val, o_default, 0);
|
---|
1199 | if (!envvar2)
|
---|
1200 | define_variable ("BUILD_PLATFORM_CPU", sizeof ("BUILD_PLATFORM_CPU") - 1,
|
---|
1201 | val, o_default, 0);
|
---|
1202 |
|
---|
1203 | /* The kBuild locations. */
|
---|
1204 | define_variable ("KBUILD_PATH", sizeof ("KBUILD_PATH") - 1,
|
---|
1205 | get_kbuild_path (), o_default, 0);
|
---|
1206 | define_variable ("KBUILD_BIN_PATH", sizeof ("KBUILD_BIN_PATH") - 1,
|
---|
1207 | get_kbuild_bin_path (), o_default, 0);
|
---|
1208 |
|
---|
1209 | define_variable ("PATH_KBUILD", sizeof ("PATH_KBUILD") - 1,
|
---|
1210 | get_kbuild_path (), o_default, 0);
|
---|
1211 | define_variable ("PATH_KBUILD_BIN", sizeof ("PATH_KBUILD_BIN") - 1,
|
---|
1212 | get_kbuild_bin_path (), o_default, 0);
|
---|
1213 |
|
---|
1214 | /* Define KMK_FEATURES to indicate various working KMK features. */
|
---|
1215 | # if defined (CONFIG_WITH_RSORT) \
|
---|
1216 | && defined (CONFIG_WITH_ABSPATHEX) \
|
---|
1217 | && defined (CONFIG_WITH_TOUPPER_TOLOWER) \
|
---|
1218 | && defined (CONFIG_WITH_DEFINED) \
|
---|
1219 | && defined (CONFIG_WITH_VALUE_LENGTH) && defined (CONFIG_WITH_COMPARE) \
|
---|
1220 | && defined (CONFIG_WITH_STACK) \
|
---|
1221 | && defined (CONFIG_WITH_MATH) \
|
---|
1222 | && defined (CONFIG_WITH_XARGS) \
|
---|
1223 | && defined (CONFIG_WITH_EXPLICIT_MULTITARGET) \
|
---|
1224 | && defined (CONFIG_WITH_PREPEND_ASSIGNMENT) \
|
---|
1225 | && defined (CONFIG_WITH_SET_CONDITIONALS) \
|
---|
1226 | && defined (CONFIG_WITH_DATE) \
|
---|
1227 | && defined (CONFIG_WITH_FILE_SIZE) \
|
---|
1228 | && defined (CONFIG_WITH_WHICH) \
|
---|
1229 | && defined (CONFIG_WITH_EVALPLUS) \
|
---|
1230 | && defined (CONFIG_WITH_MAKE_STATS) \
|
---|
1231 | && defined (CONFIG_WITH_COMMANDS_FUNC) \
|
---|
1232 | && defined (KMK_HELPERS)
|
---|
1233 | (void) define_variable ("KMK_FEATURES", 12,
|
---|
1234 | "append-dash-n abspath includedep-queue"
|
---|
1235 | " rsort"
|
---|
1236 | " abspathex"
|
---|
1237 | " toupper tolower"
|
---|
1238 | " defined"
|
---|
1239 | " comp-vars comp-cmds comp-cmds-ex"
|
---|
1240 | " stack"
|
---|
1241 | " math-int"
|
---|
1242 | " xargs"
|
---|
1243 | " explicit-multitarget"
|
---|
1244 | " prepend-assignment"
|
---|
1245 | " set-conditionals"
|
---|
1246 | " date"
|
---|
1247 | " file-size"
|
---|
1248 | " expr if-expr"
|
---|
1249 | " which"
|
---|
1250 | " evalctx evalval evalvalctx evalcall evalcall2"
|
---|
1251 | " make-stats"
|
---|
1252 | " commands"
|
---|
1253 | " kb-src-tool kb-obj-base kb-obj-suff kb-src-prop kb-src-one "
|
---|
1254 | , o_default, 0);
|
---|
1255 | # else /* MSC can't deal with strings mixed with #if/#endif, thus the slow way. */
|
---|
1256 | # error "All features should be enabled by default!"
|
---|
1257 | strcpy (buf, "append-dash-n abspath includedep-queue");
|
---|
1258 | # if defined (CONFIG_WITH_RSORT)
|
---|
1259 | strcat (buf, " rsort");
|
---|
1260 | # endif
|
---|
1261 | # if defined (CONFIG_WITH_ABSPATHEX)
|
---|
1262 | strcat (buf, " abspathex");
|
---|
1263 | # endif
|
---|
1264 | # if defined (CONFIG_WITH_TOUPPER_TOLOWER)
|
---|
1265 | strcat (buf, " toupper tolower");
|
---|
1266 | # endif
|
---|
1267 | # if defined (CONFIG_WITH_DEFINED)
|
---|
1268 | strcat (buf, " defined");
|
---|
1269 | # endif
|
---|
1270 | # if defined (CONFIG_WITH_VALUE_LENGTH) && defined(CONFIG_WITH_COMPARE)
|
---|
1271 | strcat (buf, " comp-vars comp-cmds comp-cmds-ex");
|
---|
1272 | # endif
|
---|
1273 | # if defined (CONFIG_WITH_STACK)
|
---|
1274 | strcat (buf, " stack");
|
---|
1275 | # endif
|
---|
1276 | # if defined (CONFIG_WITH_MATH)
|
---|
1277 | strcat (buf, " math-int");
|
---|
1278 | # endif
|
---|
1279 | # if defined (CONFIG_WITH_XARGS)
|
---|
1280 | strcat (buf, " xargs");
|
---|
1281 | # endif
|
---|
1282 | # if defined (CONFIG_WITH_EXPLICIT_MULTITARGET)
|
---|
1283 | strcat (buf, " explicit-multitarget");
|
---|
1284 | # endif
|
---|
1285 | # if defined (CONFIG_WITH_PREPEND_ASSIGNMENT)
|
---|
1286 | strcat (buf, " prepend-assignment");
|
---|
1287 | # endif
|
---|
1288 | # if defined (CONFIG_WITH_SET_CONDITIONALS)
|
---|
1289 | strcat (buf, " set-conditionals");
|
---|
1290 | # endif
|
---|
1291 | # if defined (CONFIG_WITH_DATE)
|
---|
1292 | strcat (buf, " date");
|
---|
1293 | # endif
|
---|
1294 | # if defined (CONFIG_WITH_FILE_SIZE)
|
---|
1295 | strcat (buf, " file-size");
|
---|
1296 | # endif
|
---|
1297 | # if defined (CONFIG_WITH_IF_CONDITIONALS)
|
---|
1298 | strcat (buf, " expr if-expr");
|
---|
1299 | # endif
|
---|
1300 | # if defined (CONFIG_WITH_WHICH)
|
---|
1301 | strcat (buf, " which");
|
---|
1302 | # endif
|
---|
1303 | # if defined (CONFIG_WITH_EVALPLUS)
|
---|
1304 | strcat (buf, " evalctx evalval evalvalctx evalcall evalcall2");
|
---|
1305 | # endif
|
---|
1306 | # if defined (CONFIG_WITH_MAKE_STATS)
|
---|
1307 | strcat (buf, " make-stats");
|
---|
1308 | # endif
|
---|
1309 | # if defined (CONFIG_WITH_COMMANDS_FUNC)
|
---|
1310 | strcat (buf, " commands");
|
---|
1311 | # endif
|
---|
1312 | # if defined (KMK_HELPERS)
|
---|
1313 | strcat (buf, " kb-src-tool kb-obj-base kb-obj-suff kb-src-prop kb-src-one");
|
---|
1314 | # endif
|
---|
1315 | (void) define_variable ("KMK_FEATURES", 12, buf, o_default, 0);
|
---|
1316 | # endif
|
---|
1317 |
|
---|
1318 | #endif /* KMK */
|
---|
1319 |
|
---|
1320 | #ifdef CONFIG_WITH_KMK_BUILTIN
|
---|
1321 | /* The supported kMk Builtin commands. */
|
---|
1322 | (void) define_variable ("KMK_BUILTIN", 11, "append cat chmod cp cmp echo expr install kDepIDB ln md5sum mkdir mv printf rm rmdir test", o_default, 0);
|
---|
1323 | #endif
|
---|
1324 |
|
---|
1325 | #ifdef __MSDOS__
|
---|
1326 | /* Allow to specify a special shell just for Make,
|
---|
1327 | and use $COMSPEC as the default $SHELL when appropriate. */
|
---|
1328 | {
|
---|
1329 | static char shell_str[] = "SHELL";
|
---|
1330 | const int shlen = sizeof (shell_str) - 1;
|
---|
1331 | struct variable *mshp = lookup_variable ("MAKESHELL", 9);
|
---|
1332 | struct variable *comp = lookup_variable ("COMSPEC", 7);
|
---|
1333 |
|
---|
1334 | /* Make $MAKESHELL override $SHELL even if -e is in effect. */
|
---|
1335 | if (mshp)
|
---|
1336 | (void) define_variable (shell_str, shlen,
|
---|
1337 | mshp->value, o_env_override, 0);
|
---|
1338 | else if (comp)
|
---|
1339 | {
|
---|
1340 | /* $COMSPEC shouldn't override $SHELL. */
|
---|
1341 | struct variable *shp = lookup_variable (shell_str, shlen);
|
---|
1342 |
|
---|
1343 | if (!shp)
|
---|
1344 | (void) define_variable (shell_str, shlen, comp->value, o_env, 0);
|
---|
1345 | }
|
---|
1346 | }
|
---|
1347 | #elif defined(__EMX__)
|
---|
1348 | {
|
---|
1349 | static char shell_str[] = "SHELL";
|
---|
1350 | const int shlen = sizeof (shell_str) - 1;
|
---|
1351 | struct variable *shell = lookup_variable (shell_str, shlen);
|
---|
1352 | struct variable *replace = lookup_variable ("MAKESHELL", 9);
|
---|
1353 |
|
---|
1354 | /* if $MAKESHELL is defined in the environment assume o_env_override */
|
---|
1355 | if (replace && *replace->value && replace->origin == o_env)
|
---|
1356 | replace->origin = o_env_override;
|
---|
1357 |
|
---|
1358 | /* if $MAKESHELL is not defined use $SHELL but only if the variable
|
---|
1359 | did not come from the environment */
|
---|
1360 | if (!replace || !*replace->value)
|
---|
1361 | if (shell && *shell->value && (shell->origin == o_env
|
---|
1362 | || shell->origin == o_env_override))
|
---|
1363 | {
|
---|
1364 | /* overwrite whatever we got from the environment */
|
---|
1365 | free(shell->value);
|
---|
1366 | shell->value = xstrdup (default_shell);
|
---|
1367 | shell->origin = o_default;
|
---|
1368 | }
|
---|
1369 |
|
---|
1370 | /* Some people do not like cmd to be used as the default
|
---|
1371 | if $SHELL is not defined in the Makefile.
|
---|
1372 | With -DNO_CMD_DEFAULT you can turn off this behaviour */
|
---|
1373 | # ifndef NO_CMD_DEFAULT
|
---|
1374 | /* otherwise use $COMSPEC */
|
---|
1375 | if (!replace || !*replace->value)
|
---|
1376 | replace = lookup_variable ("COMSPEC", 7);
|
---|
1377 |
|
---|
1378 | /* otherwise use $OS2_SHELL */
|
---|
1379 | if (!replace || !*replace->value)
|
---|
1380 | replace = lookup_variable ("OS2_SHELL", 9);
|
---|
1381 | # else
|
---|
1382 | # warning NO_CMD_DEFAULT: GNU make will not use CMD.EXE as default shell
|
---|
1383 | # endif
|
---|
1384 |
|
---|
1385 | if (replace && *replace->value)
|
---|
1386 | /* overwrite $SHELL */
|
---|
1387 | (void) define_variable (shell_str, shlen, replace->value,
|
---|
1388 | replace->origin, 0);
|
---|
1389 | else
|
---|
1390 | /* provide a definition if there is none */
|
---|
1391 | (void) define_variable (shell_str, shlen, default_shell,
|
---|
1392 | o_default, 0);
|
---|
1393 | }
|
---|
1394 |
|
---|
1395 | #endif
|
---|
1396 |
|
---|
1397 | /* This won't override any definition, but it will provide one if there
|
---|
1398 | isn't one there. */
|
---|
1399 | v = define_variable ("SHELL", 5, default_shell, o_default, 0);
|
---|
1400 |
|
---|
1401 | /* On MSDOS we do use SHELL from environment, since it isn't a standard
|
---|
1402 | environment variable on MSDOS, so whoever sets it, does that on purpose.
|
---|
1403 | On OS/2 we do not use SHELL from environment but we have already handled
|
---|
1404 | that problem above. */
|
---|
1405 | #if !defined(__MSDOS__) && !defined(__EMX__)
|
---|
1406 | /* Don't let SHELL come from the environment. */
|
---|
1407 | if (*v->value == '\0' || v->origin == o_env || v->origin == o_env_override)
|
---|
1408 | {
|
---|
1409 | free (v->value);
|
---|
1410 | v->origin = o_file;
|
---|
1411 | v->value = xstrdup (default_shell);
|
---|
1412 | #ifdef CONFIG_WITH_VALUE_LENGTH
|
---|
1413 | v->value_length = strlen (v->value);
|
---|
1414 | v->value_alloc_len = v->value_length + 1;
|
---|
1415 | #endif
|
---|
1416 | }
|
---|
1417 | #endif
|
---|
1418 |
|
---|
1419 | /* Make sure MAKEFILES gets exported if it is set. */
|
---|
1420 | v = define_variable ("MAKEFILES", 9, "", o_default, 0);
|
---|
1421 | v->export = v_ifset;
|
---|
1422 |
|
---|
1423 | /* Define the magic D and F variables in terms of
|
---|
1424 | the automatic variables they are variations of. */
|
---|
1425 |
|
---|
1426 | #ifdef VMS
|
---|
1427 | define_variable ("@D", 2, "$(dir $@)", o_automatic, 1);
|
---|
1428 | define_variable ("%D", 2, "$(dir $%)", o_automatic, 1);
|
---|
1429 | define_variable ("*D", 2, "$(dir $*)", o_automatic, 1);
|
---|
1430 | define_variable ("<D", 2, "$(dir $<)", o_automatic, 1);
|
---|
1431 | define_variable ("?D", 2, "$(dir $?)", o_automatic, 1);
|
---|
1432 | define_variable ("^D", 2, "$(dir $^)", o_automatic, 1);
|
---|
1433 | define_variable ("+D", 2, "$(dir $+)", o_automatic, 1);
|
---|
1434 | #else
|
---|
1435 | define_variable ("@D", 2, "$(patsubst %/,%,$(dir $@))", o_automatic, 1);
|
---|
1436 | define_variable ("%D", 2, "$(patsubst %/,%,$(dir $%))", o_automatic, 1);
|
---|
1437 | define_variable ("*D", 2, "$(patsubst %/,%,$(dir $*))", o_automatic, 1);
|
---|
1438 | define_variable ("<D", 2, "$(patsubst %/,%,$(dir $<))", o_automatic, 1);
|
---|
1439 | define_variable ("?D", 2, "$(patsubst %/,%,$(dir $?))", o_automatic, 1);
|
---|
1440 | define_variable ("^D", 2, "$(patsubst %/,%,$(dir $^))", o_automatic, 1);
|
---|
1441 | define_variable ("+D", 2, "$(patsubst %/,%,$(dir $+))", o_automatic, 1);
|
---|
1442 | #endif
|
---|
1443 | define_variable ("@F", 2, "$(notdir $@)", o_automatic, 1);
|
---|
1444 | define_variable ("%F", 2, "$(notdir $%)", o_automatic, 1);
|
---|
1445 | define_variable ("*F", 2, "$(notdir $*)", o_automatic, 1);
|
---|
1446 | define_variable ("<F", 2, "$(notdir $<)", o_automatic, 1);
|
---|
1447 | define_variable ("?F", 2, "$(notdir $?)", o_automatic, 1);
|
---|
1448 | define_variable ("^F", 2, "$(notdir $^)", o_automatic, 1);
|
---|
1449 | define_variable ("+F", 2, "$(notdir $+)", o_automatic, 1);
|
---|
1450 | }
|
---|
1451 | |
---|
1452 |
|
---|
1453 | int export_all_variables;
|
---|
1454 |
|
---|
1455 | /* Create a new environment for FILE's commands.
|
---|
1456 | If FILE is nil, this is for the `shell' function.
|
---|
1457 | The child's MAKELEVEL variable is incremented. */
|
---|
1458 |
|
---|
1459 | char **
|
---|
1460 | target_environment (struct file *file)
|
---|
1461 | {
|
---|
1462 | struct variable_set_list *set_list;
|
---|
1463 | register struct variable_set_list *s;
|
---|
1464 | struct hash_table table;
|
---|
1465 | struct variable **v_slot;
|
---|
1466 | struct variable **v_end;
|
---|
1467 | struct variable makelevel_key;
|
---|
1468 | char **result_0;
|
---|
1469 | char **result;
|
---|
1470 |
|
---|
1471 | if (file == 0)
|
---|
1472 | set_list = current_variable_set_list;
|
---|
1473 | else
|
---|
1474 | set_list = file->variables;
|
---|
1475 |
|
---|
1476 | hash_init (&table, VARIABLE_BUCKETS,
|
---|
1477 | variable_hash_1, variable_hash_2, variable_hash_cmp);
|
---|
1478 |
|
---|
1479 | /* Run through all the variable sets in the list,
|
---|
1480 | accumulating variables in TABLE. */
|
---|
1481 | for (s = set_list; s != 0; s = s->next)
|
---|
1482 | {
|
---|
1483 | struct variable_set *set = s->set;
|
---|
1484 | v_slot = (struct variable **) set->table.ht_vec;
|
---|
1485 | v_end = v_slot + set->table.ht_size;
|
---|
1486 | for ( ; v_slot < v_end; v_slot++)
|
---|
1487 | if (! HASH_VACANT (*v_slot))
|
---|
1488 | {
|
---|
1489 | struct variable **new_slot;
|
---|
1490 | struct variable *v = *v_slot;
|
---|
1491 |
|
---|
1492 | /* If this is a per-target variable and it hasn't been touched
|
---|
1493 | already then look up the global version and take its export
|
---|
1494 | value. */
|
---|
1495 | if (v->per_target && v->export == v_default)
|
---|
1496 | {
|
---|
1497 | struct variable *gv;
|
---|
1498 |
|
---|
1499 | gv = lookup_variable_in_set (v->name, strlen(v->name),
|
---|
1500 | &global_variable_set);
|
---|
1501 | if (gv)
|
---|
1502 | v->export = gv->export;
|
---|
1503 | }
|
---|
1504 |
|
---|
1505 | switch (v->export)
|
---|
1506 | {
|
---|
1507 | case v_default:
|
---|
1508 | if (v->origin == o_default || v->origin == o_automatic)
|
---|
1509 | /* Only export default variables by explicit request. */
|
---|
1510 | continue;
|
---|
1511 |
|
---|
1512 | /* The variable doesn't have a name that can be exported. */
|
---|
1513 | if (! v->exportable)
|
---|
1514 | continue;
|
---|
1515 |
|
---|
1516 | if (! export_all_variables
|
---|
1517 | && v->origin != o_command
|
---|
1518 | && v->origin != o_env && v->origin != o_env_override)
|
---|
1519 | continue;
|
---|
1520 | break;
|
---|
1521 |
|
---|
1522 | case v_export:
|
---|
1523 | break;
|
---|
1524 |
|
---|
1525 | case v_noexport:
|
---|
1526 | /* If this is the SHELL variable and it's not exported, then
|
---|
1527 | add the value from our original environment. */
|
---|
1528 | if (streq (v->name, "SHELL"))
|
---|
1529 | {
|
---|
1530 | extern struct variable shell_var;
|
---|
1531 | v = &shell_var;
|
---|
1532 | break;
|
---|
1533 | }
|
---|
1534 | continue;
|
---|
1535 |
|
---|
1536 | case v_ifset:
|
---|
1537 | if (v->origin == o_default)
|
---|
1538 | continue;
|
---|
1539 | break;
|
---|
1540 | }
|
---|
1541 |
|
---|
1542 | new_slot = (struct variable **) hash_find_slot (&table, v);
|
---|
1543 | if (HASH_VACANT (*new_slot))
|
---|
1544 | hash_insert_at (&table, v, new_slot);
|
---|
1545 | }
|
---|
1546 | }
|
---|
1547 |
|
---|
1548 | makelevel_key.name = MAKELEVEL_NAME;
|
---|
1549 | makelevel_key.length = MAKELEVEL_LENGTH;
|
---|
1550 | #ifdef VARIABLE_HASH /* bird */
|
---|
1551 | makelevel_key.hash1 = variable_hash_1i (MAKELEVEL_NAME, MAKELEVEL_LENGTH);
|
---|
1552 | makelevel_key.hash2 = 0;
|
---|
1553 | #endif
|
---|
1554 | hash_delete (&table, &makelevel_key);
|
---|
1555 |
|
---|
1556 | result = result_0 = xmalloc ((table.ht_fill + 2) * sizeof (char *));
|
---|
1557 |
|
---|
1558 | v_slot = (struct variable **) table.ht_vec;
|
---|
1559 | v_end = v_slot + table.ht_size;
|
---|
1560 | for ( ; v_slot < v_end; v_slot++)
|
---|
1561 | if (! HASH_VACANT (*v_slot))
|
---|
1562 | {
|
---|
1563 | struct variable *v = *v_slot;
|
---|
1564 |
|
---|
1565 | /* If V is recursively expanded and didn't come from the environment,
|
---|
1566 | expand its value. If it came from the environment, it should
|
---|
1567 | go back into the environment unchanged. */
|
---|
1568 | if (v->recursive
|
---|
1569 | && v->origin != o_env && v->origin != o_env_override)
|
---|
1570 | {
|
---|
1571 | char *value = recursively_expand_for_file (v, file);
|
---|
1572 | #ifdef WINDOWS32
|
---|
1573 | if (strcmp(v->name, "Path") == 0 ||
|
---|
1574 | strcmp(v->name, "PATH") == 0)
|
---|
1575 | convert_Path_to_windows32(value, ';');
|
---|
1576 | #endif
|
---|
1577 | *result++ = xstrdup (concat (v->name, "=", value));
|
---|
1578 | free (value);
|
---|
1579 | }
|
---|
1580 | else
|
---|
1581 | {
|
---|
1582 | #ifdef WINDOWS32
|
---|
1583 | if (strcmp(v->name, "Path") == 0 ||
|
---|
1584 | strcmp(v->name, "PATH") == 0)
|
---|
1585 | convert_Path_to_windows32(v->value, ';');
|
---|
1586 | #endif
|
---|
1587 | *result++ = xstrdup (concat (v->name, "=", v->value));
|
---|
1588 | }
|
---|
1589 | }
|
---|
1590 |
|
---|
1591 | *result = xmalloc (100);
|
---|
1592 | sprintf (*result, "%s=%u", MAKELEVEL_NAME, makelevel + 1);
|
---|
1593 | *++result = 0;
|
---|
1594 |
|
---|
1595 | hash_free (&table, 0);
|
---|
1596 |
|
---|
1597 | return result_0;
|
---|
1598 | }
|
---|
1599 | |
---|
1600 |
|
---|
1601 | #ifdef CONFIG_WITH_VALUE_LENGTH
|
---|
1602 | /* Worker function for do_variable_definition_append() and
|
---|
1603 | append_expanded_string_to_variable().
|
---|
1604 | The APPEND argument indicates whether it's an append or prepend operation. */
|
---|
1605 | void append_string_to_variable (struct variable *v, const char *value, unsigned int value_len, int append)
|
---|
1606 | {
|
---|
1607 | /* The previous definition of the variable was recursive.
|
---|
1608 | The new value is the unexpanded old and new values. */
|
---|
1609 | unsigned int new_value_len = value_len + (v->value_length != 0 ? 1 + v->value_length : 0);
|
---|
1610 | int done_1st_prepend_copy = 0;
|
---|
1611 |
|
---|
1612 | /* Drop empty strings. Use $(NO_SUCH_VARIABLE) if a space is wanted. */
|
---|
1613 | if (!value_len)
|
---|
1614 | return;
|
---|
1615 |
|
---|
1616 | /* adjust the size. */
|
---|
1617 | if ((unsigned)v->value_alloc_len <= new_value_len + 1)
|
---|
1618 | {
|
---|
1619 | v->value_alloc_len *= 2;
|
---|
1620 | if (v->value_alloc_len < new_value_len + 1)
|
---|
1621 | v->value_alloc_len = (new_value_len + 1 + value_len + 0x7f) + ~0x7fU;
|
---|
1622 | if (append || !v->value_length)
|
---|
1623 | v->value = xrealloc (v->value, v->value_alloc_len);
|
---|
1624 | else
|
---|
1625 | {
|
---|
1626 | /* avoid the extra memcpy the xrealloc may have to do */
|
---|
1627 | char *new_buf = xmalloc (v->value_alloc_len);
|
---|
1628 | memcpy (&new_buf[value_len + 1], v->value, v->value_length + 1);
|
---|
1629 | done_1st_prepend_copy = 1;
|
---|
1630 | free (v->value);
|
---|
1631 | v->value = new_buf;
|
---|
1632 | }
|
---|
1633 | }
|
---|
1634 |
|
---|
1635 | /* insert the new bits */
|
---|
1636 | if (v->value_length != 0)
|
---|
1637 | {
|
---|
1638 | if (append)
|
---|
1639 | {
|
---|
1640 | v->value[v->value_length] = ' ';
|
---|
1641 | memcpy (&v->value[v->value_length + 1], value, value_len + 1);
|
---|
1642 | }
|
---|
1643 | else
|
---|
1644 | {
|
---|
1645 | if (!done_1st_prepend_copy)
|
---|
1646 | memmove (&v->value[value_len + 1], v->value, v->value_length + 1);
|
---|
1647 | v->value[value_len] = ' ';
|
---|
1648 | memcpy (v->value, value, value_len);
|
---|
1649 | }
|
---|
1650 | }
|
---|
1651 | else
|
---|
1652 | memcpy (v->value, value, value_len + 1);
|
---|
1653 | v->value_length = new_value_len;
|
---|
1654 | }
|
---|
1655 |
|
---|
1656 | static struct variable *
|
---|
1657 | do_variable_definition_append (const struct floc *flocp, struct variable *v, const char *value,
|
---|
1658 | enum variable_origin origin, int append)
|
---|
1659 | {
|
---|
1660 | if (env_overrides && origin == o_env)
|
---|
1661 | origin = o_env_override;
|
---|
1662 |
|
---|
1663 | if (env_overrides && v->origin == o_env)
|
---|
1664 | /* V came from in the environment. Since it was defined
|
---|
1665 | before the switches were parsed, it wasn't affected by -e. */
|
---|
1666 | v->origin = o_env_override;
|
---|
1667 |
|
---|
1668 | /* A variable of this name is already defined.
|
---|
1669 | If the old definition is from a stronger source
|
---|
1670 | than this one, don't redefine it. */
|
---|
1671 | if ((int) origin < (int) v->origin)
|
---|
1672 | return v;
|
---|
1673 | v->origin = origin;
|
---|
1674 |
|
---|
1675 | /* location */
|
---|
1676 | if (flocp != 0)
|
---|
1677 | v->fileinfo = *flocp;
|
---|
1678 |
|
---|
1679 | /* The juicy bits, append the specified value to the variable
|
---|
1680 | This is a heavily exercised code path in kBuild. */
|
---|
1681 | if (v->recursive)
|
---|
1682 | append_string_to_variable (v, value, strlen (value), append);
|
---|
1683 | else
|
---|
1684 | /* The previous definition of the variable was simple.
|
---|
1685 | The new value comes from the old value, which was expanded
|
---|
1686 | when it was set; and from the expanded new value. */
|
---|
1687 | append_expanded_string_to_variable (v, value, append);
|
---|
1688 |
|
---|
1689 | /* update the variable */
|
---|
1690 | return v;
|
---|
1691 | }
|
---|
1692 | #endif /* CONFIG_WITH_VALUE_LENGTH */
|
---|
1693 | |
---|
1694 |
|
---|
1695 | /* Given a variable, a value, and a flavor, define the variable.
|
---|
1696 | See the try_variable_definition() function for details on the parameters. */
|
---|
1697 |
|
---|
1698 | struct variable *
|
---|
1699 | do_variable_definition (const struct floc *flocp, const char *varname,
|
---|
1700 | const char *value, enum variable_origin origin,
|
---|
1701 | enum variable_flavor flavor, int target_var)
|
---|
1702 | {
|
---|
1703 | const char *p;
|
---|
1704 | char *alloc_value = NULL;
|
---|
1705 | struct variable *v;
|
---|
1706 | int append = 0;
|
---|
1707 | int conditional = 0;
|
---|
1708 | const size_t varname_len = strlen (varname); /* bird */
|
---|
1709 | #ifdef CONFIG_WITH_VALUE_LENGTH
|
---|
1710 | unsigned int value_len = ~0U;
|
---|
1711 | #endif
|
---|
1712 |
|
---|
1713 | /* Calculate the variable's new value in VALUE. */
|
---|
1714 |
|
---|
1715 | switch (flavor)
|
---|
1716 | {
|
---|
1717 | default:
|
---|
1718 | case f_bogus:
|
---|
1719 | /* Should not be possible. */
|
---|
1720 | abort ();
|
---|
1721 | case f_simple:
|
---|
1722 | /* A simple variable definition "var := value". Expand the value.
|
---|
1723 | We have to allocate memory since otherwise it'll clobber the
|
---|
1724 | variable buffer, and we may still need that if we're looking at a
|
---|
1725 | target-specific variable. */
|
---|
1726 | p = alloc_value = allocated_variable_expand (value);
|
---|
1727 | break;
|
---|
1728 | case f_conditional:
|
---|
1729 | /* A conditional variable definition "var ?= value".
|
---|
1730 | The value is set IFF the variable is not defined yet. */
|
---|
1731 | v = lookup_variable (varname, varname_len);
|
---|
1732 | if (v)
|
---|
1733 | return v;
|
---|
1734 |
|
---|
1735 | conditional = 1;
|
---|
1736 | flavor = f_recursive;
|
---|
1737 | /* FALLTHROUGH */
|
---|
1738 | case f_recursive:
|
---|
1739 | /* A recursive variable definition "var = value".
|
---|
1740 | The value is used verbatim. */
|
---|
1741 | p = value;
|
---|
1742 | break;
|
---|
1743 | #ifdef CONFIG_WITH_PREPEND_ASSIGNMENT
|
---|
1744 | case f_append:
|
---|
1745 | case f_prepend:
|
---|
1746 | {
|
---|
1747 | const enum variable_flavor org_flavor = flavor;
|
---|
1748 | #else
|
---|
1749 | case f_append:
|
---|
1750 | {
|
---|
1751 | #endif
|
---|
1752 |
|
---|
1753 | #ifdef CONFIG_WITH_LOCAL_VARIABLES
|
---|
1754 | /* If we have += but we're in a target or local variable context,
|
---|
1755 | we want to append only with other variables in the context of
|
---|
1756 | this target. */
|
---|
1757 | if (target_var || origin == o_local)
|
---|
1758 | #else
|
---|
1759 | /* If we have += but we're in a target variable context, we want to
|
---|
1760 | append only with other variables in the context of this target. */
|
---|
1761 | if (target_var)
|
---|
1762 | #endif
|
---|
1763 | {
|
---|
1764 | append = 1;
|
---|
1765 | v = lookup_variable_in_set (varname, varname_len,
|
---|
1766 | current_variable_set_list->set);
|
---|
1767 |
|
---|
1768 | /* Don't append from the global set if a previous non-appending
|
---|
1769 | target-specific variable definition exists. */
|
---|
1770 | if (v && !v->append)
|
---|
1771 | append = 0;
|
---|
1772 | }
|
---|
1773 | else
|
---|
1774 | v = lookup_variable (varname, varname_len);
|
---|
1775 |
|
---|
1776 | if (v == 0)
|
---|
1777 | {
|
---|
1778 | /* There was no old value.
|
---|
1779 | This becomes a normal recursive definition. */
|
---|
1780 | p = value;
|
---|
1781 | flavor = f_recursive;
|
---|
1782 | }
|
---|
1783 | else
|
---|
1784 | {
|
---|
1785 | #ifdef CONFIG_WITH_VALUE_LENGTH
|
---|
1786 | v->append = append;
|
---|
1787 | # ifdef CONFIG_WITH_PREPEND_ASSIGNMENT
|
---|
1788 | return do_variable_definition_append (flocp, v, value, origin, org_flavor == f_append);
|
---|
1789 | # else
|
---|
1790 | return do_variable_definition_append (flocp, v, value, origin, 1);
|
---|
1791 | # endif
|
---|
1792 | #else /* !CONFIG_WITH_VALUE_LENGTH */
|
---|
1793 |
|
---|
1794 | /* Paste the old and new values together in VALUE. */
|
---|
1795 |
|
---|
1796 | unsigned int oldlen, vallen;
|
---|
1797 | const char *val;
|
---|
1798 | char *tp;
|
---|
1799 |
|
---|
1800 | val = value;
|
---|
1801 | if (v->recursive)
|
---|
1802 | /* The previous definition of the variable was recursive.
|
---|
1803 | The new value is the unexpanded old and new values. */
|
---|
1804 | flavor = f_recursive;
|
---|
1805 | else
|
---|
1806 | /* The previous definition of the variable was simple.
|
---|
1807 | The new value comes from the old value, which was expanded
|
---|
1808 | when it was set; and from the expanded new value. Allocate
|
---|
1809 | memory for the expansion as we may still need the rest of the
|
---|
1810 | buffer if we're looking at a target-specific variable. */
|
---|
1811 | val = alloc_value = allocated_variable_expand (val);
|
---|
1812 |
|
---|
1813 | oldlen = strlen (v->value);
|
---|
1814 | vallen = strlen (val);
|
---|
1815 | tp = alloca (oldlen + 1 + vallen + 1);
|
---|
1816 | # ifdef CONFIG_WITH_PREPEND_ASSIGNMENT
|
---|
1817 | if (org_flavor == f_prepend)
|
---|
1818 | {
|
---|
1819 | memcpy (tp, val, vallen);
|
---|
1820 | tp[oldlen] = ' ';
|
---|
1821 | memcpy (&tp[oldlen + 1], v->value, oldlen + 1);
|
---|
1822 | }
|
---|
1823 | else
|
---|
1824 | # endif /* CONFIG_WITH_PREPEND_ASSIGNMENT */
|
---|
1825 | {
|
---|
1826 | memcpy (tp, v->value, oldlen);
|
---|
1827 | tp[oldlen] = ' ';
|
---|
1828 | memcpy (&tp[oldlen + 1], val, vallen + 1);
|
---|
1829 | }
|
---|
1830 | p = tp;
|
---|
1831 | #endif /* !CONFIG_WITH_VALUE_LENGTH */
|
---|
1832 | }
|
---|
1833 | }
|
---|
1834 | }
|
---|
1835 |
|
---|
1836 | #ifdef __MSDOS__
|
---|
1837 | /* Many Unix Makefiles include a line saying "SHELL=/bin/sh", but
|
---|
1838 | non-Unix systems don't conform to this default configuration (in
|
---|
1839 | fact, most of them don't even have `/bin'). On the other hand,
|
---|
1840 | $SHELL in the environment, if set, points to the real pathname of
|
---|
1841 | the shell.
|
---|
1842 | Therefore, we generally won't let lines like "SHELL=/bin/sh" from
|
---|
1843 | the Makefile override $SHELL from the environment. But first, we
|
---|
1844 | look for the basename of the shell in the directory where SHELL=
|
---|
1845 | points, and along the $PATH; if it is found in any of these places,
|
---|
1846 | we define $SHELL to be the actual pathname of the shell. Thus, if
|
---|
1847 | you have bash.exe installed as d:/unix/bash.exe, and d:/unix is on
|
---|
1848 | your $PATH, then SHELL=/usr/local/bin/bash will have the effect of
|
---|
1849 | defining SHELL to be "d:/unix/bash.exe". */
|
---|
1850 | if ((origin == o_file || origin == o_override)
|
---|
1851 | && strcmp (varname, "SHELL") == 0)
|
---|
1852 | {
|
---|
1853 | PATH_VAR (shellpath);
|
---|
1854 | extern char * __dosexec_find_on_path (const char *, char *[], char *);
|
---|
1855 |
|
---|
1856 | /* See if we can find "/bin/sh.exe", "/bin/sh.com", etc. */
|
---|
1857 | if (__dosexec_find_on_path (p, NULL, shellpath))
|
---|
1858 | {
|
---|
1859 | char *tp;
|
---|
1860 |
|
---|
1861 | for (tp = shellpath; *tp; tp++)
|
---|
1862 | if (*tp == '\\')
|
---|
1863 | *tp = '/';
|
---|
1864 |
|
---|
1865 | v = define_variable_loc (varname, varname_len,
|
---|
1866 | shellpath, origin, flavor == f_recursive,
|
---|
1867 | flocp);
|
---|
1868 | }
|
---|
1869 | else
|
---|
1870 | {
|
---|
1871 | const char *shellbase, *bslash;
|
---|
1872 | struct variable *pathv = lookup_variable ("PATH", 4);
|
---|
1873 | char *path_string;
|
---|
1874 | char *fake_env[2];
|
---|
1875 | size_t pathlen = 0;
|
---|
1876 |
|
---|
1877 | shellbase = strrchr (p, '/');
|
---|
1878 | bslash = strrchr (p, '\\');
|
---|
1879 | if (!shellbase || bslash > shellbase)
|
---|
1880 | shellbase = bslash;
|
---|
1881 | if (!shellbase && p[1] == ':')
|
---|
1882 | shellbase = p + 1;
|
---|
1883 | if (shellbase)
|
---|
1884 | shellbase++;
|
---|
1885 | else
|
---|
1886 | shellbase = p;
|
---|
1887 |
|
---|
1888 | /* Search for the basename of the shell (with standard
|
---|
1889 | executable extensions) along the $PATH. */
|
---|
1890 | if (pathv)
|
---|
1891 | pathlen = strlen (pathv->value);
|
---|
1892 | path_string = xmalloc (5 + pathlen + 2 + 1);
|
---|
1893 | /* On MSDOS, current directory is considered as part of $PATH. */
|
---|
1894 | sprintf (path_string, "PATH=.;%s", pathv ? pathv->value : "");
|
---|
1895 | fake_env[0] = path_string;
|
---|
1896 | fake_env[1] = 0;
|
---|
1897 | if (__dosexec_find_on_path (shellbase, fake_env, shellpath))
|
---|
1898 | {
|
---|
1899 | char *tp;
|
---|
1900 |
|
---|
1901 | for (tp = shellpath; *tp; tp++)
|
---|
1902 | if (*tp == '\\')
|
---|
1903 | *tp = '/';
|
---|
1904 |
|
---|
1905 | v = define_variable_loc (varname, varname_len,
|
---|
1906 | shellpath, origin,
|
---|
1907 | flavor == f_recursive, flocp);
|
---|
1908 | }
|
---|
1909 | else
|
---|
1910 | v = lookup_variable (varname, varname_len);
|
---|
1911 |
|
---|
1912 | free (path_string);
|
---|
1913 | }
|
---|
1914 | }
|
---|
1915 | else
|
---|
1916 | #endif /* __MSDOS__ */
|
---|
1917 | #ifdef WINDOWS32
|
---|
1918 | if ( varname_len == sizeof("SHELL") - 1 /* bird */
|
---|
1919 | && (origin == o_file || origin == o_override || origin == o_command)
|
---|
1920 | && streq (varname, "SHELL"))
|
---|
1921 | {
|
---|
1922 | extern char *default_shell;
|
---|
1923 |
|
---|
1924 | /* Call shell locator function. If it returns TRUE, then
|
---|
1925 | set no_default_sh_exe to indicate sh was found and
|
---|
1926 | set new value for SHELL variable. */
|
---|
1927 |
|
---|
1928 | if (find_and_set_default_shell (p))
|
---|
1929 | {
|
---|
1930 | v = define_variable_in_set (varname, varname_len, default_shell,
|
---|
1931 | # ifdef CONFIG_WITH_VALUE_LENGTH
|
---|
1932 | ~0U, 1 /* duplicate_value */,
|
---|
1933 | # endif
|
---|
1934 | origin, flavor == f_recursive,
|
---|
1935 | (target_var
|
---|
1936 | ? current_variable_set_list->set
|
---|
1937 | : NULL),
|
---|
1938 | flocp);
|
---|
1939 | no_default_sh_exe = 0;
|
---|
1940 | }
|
---|
1941 | else
|
---|
1942 | v = lookup_variable (varname, varname_len);
|
---|
1943 | }
|
---|
1944 | else
|
---|
1945 | #endif
|
---|
1946 |
|
---|
1947 | /* If we are defining variables inside an $(eval ...), we might have a
|
---|
1948 | different variable context pushed, not the global context (maybe we're
|
---|
1949 | inside a $(call ...) or something. Since this function is only ever
|
---|
1950 | invoked in places where we want to define globally visible variables,
|
---|
1951 | make sure we define this variable in the global set. */
|
---|
1952 |
|
---|
1953 | v = define_variable_in_set (varname, varname_len, p,
|
---|
1954 | #ifdef CONFIG_WITH_VALUE_LENGTH
|
---|
1955 | value_len, !alloc_value,
|
---|
1956 | #endif
|
---|
1957 | origin, flavor == f_recursive,
|
---|
1958 | #ifdef CONFIG_WITH_LOCAL_VARIABLES
|
---|
1959 | (target_var || origin == o_local
|
---|
1960 | #else
|
---|
1961 | (target_var
|
---|
1962 | #endif
|
---|
1963 | ? current_variable_set_list->set : NULL),
|
---|
1964 | flocp);
|
---|
1965 | v->append = append;
|
---|
1966 | v->conditional = conditional;
|
---|
1967 |
|
---|
1968 | #ifndef CONFIG_WITH_VALUE_LENGTH
|
---|
1969 | if (alloc_value)
|
---|
1970 | free (alloc_value);
|
---|
1971 | #endif
|
---|
1972 |
|
---|
1973 | return v;
|
---|
1974 | }
|
---|
1975 | |
---|
1976 |
|
---|
1977 | /* Try to interpret LINE (a null-terminated string) as a variable definition.
|
---|
1978 |
|
---|
1979 | ORIGIN may be o_file, o_override, o_env, o_env_override,
|
---|
1980 | or o_command specifying that the variable definition comes
|
---|
1981 | from a makefile, an override directive, the environment with
|
---|
1982 | or without the -e switch, or the command line.
|
---|
1983 |
|
---|
1984 | See the comments for parse_variable_definition().
|
---|
1985 |
|
---|
1986 | If LINE was recognized as a variable definition, a pointer to its `struct
|
---|
1987 | variable' is returned. If LINE is not a variable definition, NULL is
|
---|
1988 | returned. */
|
---|
1989 |
|
---|
1990 | struct variable *
|
---|
1991 | parse_variable_definition (struct variable *v, char *line)
|
---|
1992 | {
|
---|
1993 | register int c;
|
---|
1994 | register char *p = line;
|
---|
1995 | register char *beg;
|
---|
1996 | register char *end;
|
---|
1997 | enum variable_flavor flavor = f_bogus;
|
---|
1998 | #ifndef KMK
|
---|
1999 | char *name;
|
---|
2000 | #endif /* KMK - optimization */
|
---|
2001 |
|
---|
2002 | while (1)
|
---|
2003 | {
|
---|
2004 | c = *p++;
|
---|
2005 | if (c == '\0' || c == '#')
|
---|
2006 | return 0;
|
---|
2007 | if (c == '=')
|
---|
2008 | {
|
---|
2009 | end = p - 1;
|
---|
2010 | flavor = f_recursive;
|
---|
2011 | break;
|
---|
2012 | }
|
---|
2013 | else if (c == ':')
|
---|
2014 | if (*p == '=')
|
---|
2015 | {
|
---|
2016 | end = p++ - 1;
|
---|
2017 | flavor = f_simple;
|
---|
2018 | break;
|
---|
2019 | }
|
---|
2020 | else
|
---|
2021 | /* A colon other than := is a rule line, not a variable defn. */
|
---|
2022 | return 0;
|
---|
2023 | else if (c == '+' && *p == '=')
|
---|
2024 | {
|
---|
2025 | end = p++ - 1;
|
---|
2026 | flavor = f_append;
|
---|
2027 | break;
|
---|
2028 | }
|
---|
2029 | #ifdef CONFIG_WITH_PREPEND_ASSIGNMENT
|
---|
2030 | else if (c == '<' && *p == '=')
|
---|
2031 | {
|
---|
2032 | end = p++ - 1;
|
---|
2033 | flavor = f_prepend;
|
---|
2034 | break;
|
---|
2035 | }
|
---|
2036 | #endif
|
---|
2037 | else if (c == '?' && *p == '=')
|
---|
2038 | {
|
---|
2039 | end = p++ - 1;
|
---|
2040 | flavor = f_conditional;
|
---|
2041 | break;
|
---|
2042 | }
|
---|
2043 | else if (c == '$')
|
---|
2044 | {
|
---|
2045 | /* This might begin a variable expansion reference. Make sure we
|
---|
2046 | don't misrecognize chars inside the reference as =, := or +=. */
|
---|
2047 | char closeparen;
|
---|
2048 | int count;
|
---|
2049 | c = *p++;
|
---|
2050 | if (c == '(')
|
---|
2051 | closeparen = ')';
|
---|
2052 | else if (c == '{')
|
---|
2053 | closeparen = '}';
|
---|
2054 | else
|
---|
2055 | continue; /* Nope. */
|
---|
2056 |
|
---|
2057 | /* P now points past the opening paren or brace.
|
---|
2058 | Count parens or braces until it is matched. */
|
---|
2059 | count = 0;
|
---|
2060 | for (; *p != '\0'; ++p)
|
---|
2061 | {
|
---|
2062 | if (*p == c)
|
---|
2063 | ++count;
|
---|
2064 | else if (*p == closeparen && --count < 0)
|
---|
2065 | {
|
---|
2066 | ++p;
|
---|
2067 | break;
|
---|
2068 | }
|
---|
2069 | }
|
---|
2070 | }
|
---|
2071 | }
|
---|
2072 | v->flavor = flavor;
|
---|
2073 |
|
---|
2074 | beg = next_token (line);
|
---|
2075 | while (end > beg && isblank ((unsigned char)end[-1]))
|
---|
2076 | --end;
|
---|
2077 | p = next_token (p);
|
---|
2078 | v->value = p;
|
---|
2079 | #ifdef CONFIG_WITH_VALUE_LENGTH
|
---|
2080 | v->value_length = v->value_alloc_len = -1;
|
---|
2081 | #endif
|
---|
2082 |
|
---|
2083 | /* Expand the name, so "$(foo)bar = baz" works. */
|
---|
2084 | #ifndef KMK
|
---|
2085 | name = alloca (end - beg + 1);
|
---|
2086 | memcpy (name, beg, end - beg);
|
---|
2087 | name[end - beg] = '\0';
|
---|
2088 | v->name = allocated_variable_expand (name);
|
---|
2089 | #else /* KMK - optimizations */
|
---|
2090 | //if (memchr (beg, '$', end - beg)) /* (Mostly for cleaning up the profiler result.) */
|
---|
2091 | v->name = allocated_variable_expand_2 (beg, end - beg);
|
---|
2092 | //else
|
---|
2093 | // {
|
---|
2094 | // v->name = memcpy (xmalloc (end - beg + 1), beg, end - beg);
|
---|
2095 | // v->name[end - beg] = '\0';
|
---|
2096 | // }
|
---|
2097 | #endif /* KMK - optimizations */
|
---|
2098 |
|
---|
2099 | if (v->name[0] == '\0')
|
---|
2100 | fatal (&v->fileinfo, _("empty variable name"));
|
---|
2101 |
|
---|
2102 | return v;
|
---|
2103 | }
|
---|
2104 | |
---|
2105 |
|
---|
2106 | /* Try to interpret LINE (a null-terminated string) as a variable definition.
|
---|
2107 |
|
---|
2108 | ORIGIN may be o_file, o_override, o_env, o_env_override, o_local,
|
---|
2109 | or o_command specifying that the variable definition comes
|
---|
2110 | from a makefile, an override directive, the environment with
|
---|
2111 | or without the -e switch, or the command line.
|
---|
2112 |
|
---|
2113 | See the comments for parse_variable_definition().
|
---|
2114 |
|
---|
2115 | If LINE was recognized as a variable definition, a pointer to its `struct
|
---|
2116 | variable' is returned. If LINE is not a variable definition, NULL is
|
---|
2117 | returned. */
|
---|
2118 |
|
---|
2119 | struct variable *
|
---|
2120 | try_variable_definition (const struct floc *flocp, char *line,
|
---|
2121 | enum variable_origin origin, int target_var)
|
---|
2122 | {
|
---|
2123 | struct variable v;
|
---|
2124 | struct variable *vp;
|
---|
2125 |
|
---|
2126 | if (flocp != 0)
|
---|
2127 | v.fileinfo = *flocp;
|
---|
2128 | else
|
---|
2129 | v.fileinfo.filenm = 0;
|
---|
2130 |
|
---|
2131 | if (!parse_variable_definition (&v, line))
|
---|
2132 | return 0;
|
---|
2133 |
|
---|
2134 | vp = do_variable_definition (flocp, v.name, v.value,
|
---|
2135 | origin, v.flavor, target_var);
|
---|
2136 |
|
---|
2137 | free (v.name);
|
---|
2138 |
|
---|
2139 | return vp;
|
---|
2140 | }
|
---|
2141 | |
---|
2142 |
|
---|
2143 | /* Print information for variable V, prefixing it with PREFIX. */
|
---|
2144 |
|
---|
2145 | static void
|
---|
2146 | print_variable (const void *item, void *arg)
|
---|
2147 | {
|
---|
2148 | const struct variable *v = item;
|
---|
2149 | const char *prefix = arg;
|
---|
2150 | const char *origin;
|
---|
2151 |
|
---|
2152 | switch (v->origin)
|
---|
2153 | {
|
---|
2154 | case o_default:
|
---|
2155 | origin = _("default");
|
---|
2156 | break;
|
---|
2157 | case o_env:
|
---|
2158 | origin = _("environment");
|
---|
2159 | break;
|
---|
2160 | case o_file:
|
---|
2161 | origin = _("makefile");
|
---|
2162 | break;
|
---|
2163 | case o_env_override:
|
---|
2164 | origin = _("environment under -e");
|
---|
2165 | break;
|
---|
2166 | case o_command:
|
---|
2167 | origin = _("command line");
|
---|
2168 | break;
|
---|
2169 | case o_override:
|
---|
2170 | origin = _("`override' directive");
|
---|
2171 | break;
|
---|
2172 | case o_automatic:
|
---|
2173 | origin = _("automatic");
|
---|
2174 | break;
|
---|
2175 | #ifdef CONFIG_WITH_LOCAL_VARIABLES
|
---|
2176 | case o_local:
|
---|
2177 | origin = _("`local' directive");
|
---|
2178 | break;
|
---|
2179 | #endif
|
---|
2180 | case o_invalid:
|
---|
2181 | default:
|
---|
2182 | abort ();
|
---|
2183 | }
|
---|
2184 | fputs ("# ", stdout);
|
---|
2185 | fputs (origin, stdout);
|
---|
2186 | if (v->fileinfo.filenm)
|
---|
2187 | printf (_(" (from `%s', line %lu)"),
|
---|
2188 | v->fileinfo.filenm, v->fileinfo.lineno);
|
---|
2189 | putchar ('\n');
|
---|
2190 | fputs (prefix, stdout);
|
---|
2191 |
|
---|
2192 | /* Is this a `define'? */
|
---|
2193 | if (v->recursive && strchr (v->value, '\n') != 0)
|
---|
2194 | printf ("define %s\n%s\nendef\n", v->name, v->value);
|
---|
2195 | else
|
---|
2196 | {
|
---|
2197 | register char *p;
|
---|
2198 |
|
---|
2199 | printf ("%s %s= ", v->name, v->recursive ? v->append ? "+" : "" : ":");
|
---|
2200 |
|
---|
2201 | /* Check if the value is just whitespace. */
|
---|
2202 | p = next_token (v->value);
|
---|
2203 | if (p != v->value && *p == '\0')
|
---|
2204 | /* All whitespace. */
|
---|
2205 | printf ("$(subst ,,%s)", v->value);
|
---|
2206 | else if (v->recursive)
|
---|
2207 | fputs (v->value, stdout);
|
---|
2208 | else
|
---|
2209 | /* Double up dollar signs. */
|
---|
2210 | for (p = v->value; *p != '\0'; ++p)
|
---|
2211 | {
|
---|
2212 | if (*p == '$')
|
---|
2213 | putchar ('$');
|
---|
2214 | putchar (*p);
|
---|
2215 | }
|
---|
2216 | putchar ('\n');
|
---|
2217 | }
|
---|
2218 | }
|
---|
2219 |
|
---|
2220 |
|
---|
2221 | /* Print all the variables in SET. PREFIX is printed before
|
---|
2222 | the actual variable definitions (everything else is comments). */
|
---|
2223 |
|
---|
2224 | void
|
---|
2225 | print_variable_set (struct variable_set *set, char *prefix)
|
---|
2226 | {
|
---|
2227 | hash_map_arg (&set->table, print_variable, prefix);
|
---|
2228 |
|
---|
2229 | fputs (_("# variable set hash-table stats:\n"), stdout);
|
---|
2230 | fputs ("# ", stdout);
|
---|
2231 | hash_print_stats (&set->table, stdout);
|
---|
2232 | putc ('\n', stdout);
|
---|
2233 | }
|
---|
2234 |
|
---|
2235 | /* Print the data base of variables. */
|
---|
2236 |
|
---|
2237 | void
|
---|
2238 | print_variable_data_base (void)
|
---|
2239 | {
|
---|
2240 | puts (_("\n# Variables\n"));
|
---|
2241 |
|
---|
2242 | print_variable_set (&global_variable_set, "");
|
---|
2243 |
|
---|
2244 | puts (_("\n# Pattern-specific Variable Values"));
|
---|
2245 |
|
---|
2246 | {
|
---|
2247 | struct pattern_var *p;
|
---|
2248 | int rules = 0;
|
---|
2249 |
|
---|
2250 | for (p = pattern_vars; p != 0; p = p->next)
|
---|
2251 | {
|
---|
2252 | ++rules;
|
---|
2253 | printf ("\n%s :\n", p->target);
|
---|
2254 | print_variable (&p->variable, "# ");
|
---|
2255 | }
|
---|
2256 |
|
---|
2257 | if (rules == 0)
|
---|
2258 | puts (_("\n# No pattern-specific variable values."));
|
---|
2259 | else
|
---|
2260 | printf (_("\n# %u pattern-specific variable values"), rules);
|
---|
2261 | }
|
---|
2262 | }
|
---|
2263 |
|
---|
2264 |
|
---|
2265 | /* Print all the local variables of FILE. */
|
---|
2266 |
|
---|
2267 | void
|
---|
2268 | print_file_variables (const struct file *file)
|
---|
2269 | {
|
---|
2270 | if (file->variables != 0)
|
---|
2271 | print_variable_set (file->variables->set, "# ");
|
---|
2272 | }
|
---|
2273 |
|
---|
2274 | #ifdef WINDOWS32
|
---|
2275 | void
|
---|
2276 | sync_Path_environment (void)
|
---|
2277 | {
|
---|
2278 | char *path = allocated_variable_expand ("$(PATH)");
|
---|
2279 | static char *environ_path = NULL;
|
---|
2280 |
|
---|
2281 | if (!path)
|
---|
2282 | return;
|
---|
2283 |
|
---|
2284 | /*
|
---|
2285 | * If done this before, don't leak memory unnecessarily.
|
---|
2286 | * Free the previous entry before allocating new one.
|
---|
2287 | */
|
---|
2288 | if (environ_path)
|
---|
2289 | free (environ_path);
|
---|
2290 |
|
---|
2291 | /*
|
---|
2292 | * Create something WINDOWS32 world can grok
|
---|
2293 | */
|
---|
2294 | convert_Path_to_windows32 (path, ';');
|
---|
2295 | environ_path = xstrdup (concat ("PATH", "=", path));
|
---|
2296 | putenv (environ_path);
|
---|
2297 | free (path);
|
---|
2298 | }
|
---|
2299 | #endif
|
---|