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ee890fe2 SS |
1 | /* Functions for generic Darwin as target machine for GNU C compiler. |
2 | Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001 | |
3 | Free Software Foundation, Inc. | |
4 | Contributed by Apple Computer Inc. | |
5 | ||
6 | This file is part of GNU CC. | |
7 | ||
8 | GNU CC is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2, or (at your option) | |
11 | any later version. | |
12 | ||
13 | GNU CC is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with GNU CC; see the file COPYING. If not, write to | |
20 | the Free Software Foundation, 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | #include "config.h" | |
24 | #include "system.h" | |
25 | #include "rtl.h" | |
26 | #include "regs.h" | |
27 | #include "hard-reg-set.h" | |
28 | #include "real.h" | |
29 | #include "insn-config.h" | |
30 | #include "conditions.h" | |
31 | #include "insn-flags.h" | |
32 | #include "output.h" | |
33 | #include "insn-attr.h" | |
34 | #include "flags.h" | |
35 | #include "tree.h" | |
36 | #include "expr.h" | |
37 | #include "reload.h" | |
ee890fe2 SS |
38 | #include "function.h" |
39 | #include "ggc.h" | |
40 | ||
41 | #include "darwin-protos.h" | |
42 | ||
43 | extern void machopic_output_stub PARAMS ((FILE *, const char *, const char *)); | |
44 | ||
45 | static int machopic_data_defined_p PARAMS ((const char *)); | |
46 | static int func_name_maybe_scoped PARAMS ((const char *)); | |
df56a27f | 47 | static void update_non_lazy_ptrs PARAMS ((const char *)); |
4e08ba6c | 48 | static void update_stubs PARAMS ((const char *)); |
ee890fe2 | 49 | |
ee890fe2 SS |
50 | int |
51 | name_needs_quotes (name) | |
52 | const char *name; | |
53 | { | |
54 | int c; | |
55 | while ((c = *name++) != '\0') | |
0df6c2c7 | 56 | if (! ISIDNUM (c)) |
ee890fe2 SS |
57 | return 1; |
58 | return 0; | |
59 | } | |
60 | ||
61 | /* | |
62 | * flag_pic = 1 ... generate only indirections | |
63 | * flag_pic = 2 ... generate indirections and pure code | |
64 | */ | |
65 | ||
66 | /* This module assumes that (const (symbol_ref "foo")) is a legal pic | |
67 | reference, which will not be changed. */ | |
68 | ||
69 | static tree machopic_defined_list; | |
70 | ||
71 | enum machopic_addr_class | |
72 | machopic_classify_ident (ident) | |
73 | tree ident; | |
74 | { | |
75 | const char *name = IDENTIFIER_POINTER (ident); | |
76 | int lprefix = (((name[0] == '*' || name[0] == '&') | |
77 | && (name[1] == 'L' || (name[1] == '"' && name[2] == 'L'))) | |
78 | || ( name[0] == '_' | |
79 | && name[1] == 'O' | |
80 | && name[2] == 'B' | |
81 | && name[3] == 'J' | |
82 | && name[4] == 'C' | |
83 | && name[5] == '_')); | |
df56a27f | 84 | tree temp; |
ee890fe2 | 85 | |
df56a27f | 86 | if (name[0] != '!') |
ee890fe2 | 87 | { |
df56a27f | 88 | /* Here if no special encoding to be found. */ |
ee890fe2 SS |
89 | if (lprefix) |
90 | { | |
91 | const char *name = IDENTIFIER_POINTER (ident); | |
92 | int len = strlen (name); | |
93 | ||
94 | if ((len > 5 && !strcmp (name + len - 5, "$stub")) | |
95 | || (len > 6 && !strcmp (name + len - 6, "$stub\""))) | |
96 | return MACHOPIC_DEFINED_FUNCTION; | |
97 | return MACHOPIC_DEFINED_DATA; | |
98 | } | |
99 | ||
100 | for (temp = machopic_defined_list; | |
101 | temp != NULL_TREE; | |
102 | temp = TREE_CHAIN (temp)) | |
103 | { | |
104 | if (ident == TREE_VALUE (temp)) | |
105 | return MACHOPIC_DEFINED_DATA; | |
106 | } | |
107 | ||
108 | if (TREE_ASM_WRITTEN (ident)) | |
109 | return MACHOPIC_DEFINED_DATA; | |
110 | ||
111 | return MACHOPIC_UNDEFINED; | |
112 | } | |
113 | ||
df56a27f SS |
114 | else if (name[1] == 'D') |
115 | return MACHOPIC_DEFINED_DATA; | |
ee890fe2 | 116 | |
df56a27f SS |
117 | else if (name[1] == 'T') |
118 | return MACHOPIC_DEFINED_FUNCTION; | |
ee890fe2 SS |
119 | |
120 | for (temp = machopic_defined_list; temp != NULL_TREE; temp = TREE_CHAIN (temp)) | |
121 | { | |
122 | if (ident == TREE_VALUE (temp)) | |
123 | { | |
df56a27f | 124 | if (name[1] == 'T') |
ee890fe2 SS |
125 | return MACHOPIC_DEFINED_FUNCTION; |
126 | else | |
127 | return MACHOPIC_DEFINED_DATA; | |
128 | } | |
129 | } | |
130 | ||
df56a27f | 131 | if (name[1] == 't' || name[1] == 'T') |
ee890fe2 SS |
132 | { |
133 | if (lprefix) | |
134 | return MACHOPIC_DEFINED_FUNCTION; | |
135 | else | |
136 | return MACHOPIC_UNDEFINED_FUNCTION; | |
137 | } | |
138 | else | |
139 | { | |
140 | if (lprefix) | |
141 | return MACHOPIC_DEFINED_DATA; | |
142 | else | |
143 | return MACHOPIC_UNDEFINED_DATA; | |
144 | } | |
145 | } | |
146 | ||
147 | ||
148 | enum machopic_addr_class | |
149 | machopic_classify_name (name) | |
150 | const char *name; | |
151 | { | |
152 | return machopic_classify_ident (get_identifier (name)); | |
153 | } | |
154 | ||
155 | int | |
156 | machopic_ident_defined_p (ident) | |
157 | tree ident; | |
158 | { | |
159 | switch (machopic_classify_ident (ident)) | |
160 | { | |
161 | case MACHOPIC_UNDEFINED: | |
162 | case MACHOPIC_UNDEFINED_DATA: | |
163 | case MACHOPIC_UNDEFINED_FUNCTION: | |
164 | return 0; | |
165 | default: | |
166 | return 1; | |
167 | } | |
168 | } | |
169 | ||
170 | static int | |
171 | machopic_data_defined_p (name) | |
172 | const char *name; | |
173 | { | |
174 | switch (machopic_classify_ident (get_identifier (name))) | |
175 | { | |
176 | case MACHOPIC_DEFINED_DATA: | |
177 | return 1; | |
178 | default: | |
179 | return 0; | |
180 | } | |
181 | } | |
182 | ||
183 | int | |
184 | machopic_name_defined_p (name) | |
185 | const char *name; | |
186 | { | |
187 | return machopic_ident_defined_p (get_identifier (name)); | |
188 | } | |
189 | ||
190 | void | |
191 | machopic_define_ident (ident) | |
192 | tree ident; | |
193 | { | |
194 | if (!machopic_ident_defined_p (ident)) | |
195 | machopic_defined_list = | |
196 | tree_cons (NULL_TREE, ident, machopic_defined_list); | |
197 | } | |
198 | ||
199 | void | |
200 | machopic_define_name (name) | |
201 | const char *name; | |
202 | { | |
203 | machopic_define_ident (get_identifier (name)); | |
204 | } | |
205 | ||
ee890fe2 SS |
206 | /* This is a static to make inline functions work. The rtx |
207 | representing the PIC base symbol always points to here. */ | |
208 | ||
209 | static char function_base[32]; | |
210 | ||
211 | static int current_pic_label_num; | |
212 | ||
213 | char * | |
214 | machopic_function_base_name () | |
215 | { | |
c0cbc013 | 216 | static const char *name = NULL; |
ee890fe2 SS |
217 | static const char *current_name; |
218 | ||
219 | current_name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)); | |
220 | ||
221 | if (name != current_name) | |
222 | { | |
223 | current_function_uses_pic_offset_table = 1; | |
224 | ||
225 | /* Save mucho space and time. Some of the C++ mangled names are over | |
226 | 700 characters long! Note that we produce a label containing a '-' | |
227 | if the function we're compiling is an Objective-C method, as evinced | |
228 | by the incredibly scientific test below. This is because code in | |
229 | rs6000.c makes the same ugly test when loading the PIC reg. */ | |
230 | ||
231 | ++current_pic_label_num; | |
232 | if (*current_name == '+' || *current_name == '-') | |
233 | sprintf (function_base, "*\"L-%d$pb\"", current_pic_label_num); | |
234 | else | |
235 | sprintf (function_base, "*L%d$pb", current_pic_label_num); | |
236 | ||
237 | name = current_name; | |
238 | } | |
239 | ||
240 | return function_base; | |
241 | } | |
242 | ||
243 | static tree machopic_non_lazy_pointers = NULL; | |
244 | ||
245 | /* Return a non-lazy pointer name corresponding to the given name, | |
246 | either by finding it in our list of pointer names, or by generating | |
247 | a new one. */ | |
248 | ||
249 | char * | |
250 | machopic_non_lazy_ptr_name (name) | |
251 | const char *name; | |
252 | { | |
df56a27f | 253 | char *temp_name; |
ee890fe2 SS |
254 | tree temp, ident = get_identifier (name); |
255 | ||
256 | for (temp = machopic_non_lazy_pointers; | |
257 | temp != NULL_TREE; | |
258 | temp = TREE_CHAIN (temp)) | |
259 | { | |
260 | if (ident == TREE_VALUE (temp)) | |
261 | return IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
262 | } | |
263 | ||
df56a27f SS |
264 | STRIP_NAME_ENCODING (name, name); |
265 | ||
266 | /* Try again, but comparing names this time. */ | |
267 | for (temp = machopic_non_lazy_pointers; | |
268 | temp != NULL_TREE; | |
269 | temp = TREE_CHAIN (temp)) | |
270 | { | |
271 | if (TREE_VALUE (temp)) | |
272 | { | |
273 | temp_name = IDENTIFIER_POINTER (TREE_VALUE (temp)); | |
274 | STRIP_NAME_ENCODING (temp_name, temp_name); | |
275 | if (strcmp (name, temp_name) == 0) | |
276 | return IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
277 | } | |
278 | } | |
279 | ||
ee890fe2 SS |
280 | { |
281 | char *buffer; | |
282 | tree ptr_name; | |
283 | ||
284 | buffer = alloca (strlen (name) + 20); | |
285 | ||
286 | strcpy (buffer, "&L"); | |
287 | if (name[0] == '*') | |
288 | strcat (buffer, name+1); | |
289 | else | |
290 | { | |
291 | strcat (buffer, "_"); | |
292 | strcat (buffer, name); | |
293 | } | |
294 | ||
295 | strcat (buffer, "$non_lazy_ptr"); | |
296 | ptr_name = get_identifier (buffer); | |
297 | ||
298 | machopic_non_lazy_pointers | |
299 | = tree_cons (ptr_name, ident, machopic_non_lazy_pointers); | |
300 | ||
301 | TREE_USED (machopic_non_lazy_pointers) = 0; | |
302 | ||
303 | return IDENTIFIER_POINTER (ptr_name); | |
304 | } | |
305 | } | |
306 | ||
307 | static tree machopic_stubs = 0; | |
308 | ||
309 | /* Make sure the GC knows about our homemade lists. */ | |
310 | ||
311 | void | |
312 | machopic_add_gc_roots () | |
313 | { | |
314 | ggc_add_tree_root (&machopic_defined_list, 1); | |
315 | ggc_add_tree_root (&machopic_non_lazy_pointers, 1); | |
316 | ggc_add_tree_root (&machopic_stubs, 1); | |
317 | } | |
318 | ||
319 | /* Return the name of the stub corresponding to the given name, | |
320 | generating a new stub name if necessary. */ | |
321 | ||
322 | char * | |
323 | machopic_stub_name (name) | |
324 | const char *name; | |
325 | { | |
326 | tree temp, ident = get_identifier (name); | |
93913281 SS |
327 | const char *tname; |
328 | ||
ee890fe2 SS |
329 | for (temp = machopic_stubs; |
330 | temp != NULL_TREE; | |
331 | temp = TREE_CHAIN (temp)) | |
332 | { | |
333 | if (ident == TREE_VALUE (temp)) | |
334 | return IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
93913281 SS |
335 | tname = IDENTIFIER_POINTER (TREE_VALUE (temp)); |
336 | if (strcmp (name, tname) == 0) | |
337 | return IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
338 | /* A library call name might not be section-encoded yet, so try | |
339 | it against a stripped name. */ | |
340 | if (name[0] != '!' | |
341 | && tname[0] == '!' | |
342 | && strcmp (name, tname + 4) == 0) | |
4e08ba6c | 343 | return IDENTIFIER_POINTER (TREE_PURPOSE (temp)); |
ee890fe2 SS |
344 | } |
345 | ||
df56a27f SS |
346 | STRIP_NAME_ENCODING (name, name); |
347 | ||
ee890fe2 SS |
348 | { |
349 | char *buffer; | |
350 | tree ptr_name; | |
351 | int needs_quotes = name_needs_quotes (name); | |
352 | ||
353 | buffer = alloca (strlen (name) + 20); | |
354 | ||
355 | if (needs_quotes) | |
356 | strcpy (buffer, "&\"L"); | |
357 | else | |
358 | strcpy (buffer, "&L"); | |
359 | if (name[0] == '*') | |
360 | { | |
361 | strcat (buffer, name+1); | |
362 | } | |
363 | else | |
364 | { | |
365 | strcat (buffer, "_"); | |
366 | strcat (buffer, name); | |
367 | } | |
368 | ||
369 | if (needs_quotes) | |
370 | strcat (buffer, "$stub\""); | |
371 | else | |
372 | strcat (buffer, "$stub"); | |
373 | ptr_name = get_identifier (buffer); | |
374 | ||
375 | machopic_stubs = tree_cons (ptr_name, ident, machopic_stubs); | |
376 | TREE_USED (machopic_stubs) = 0; | |
377 | ||
378 | return IDENTIFIER_POINTER (ptr_name); | |
379 | } | |
380 | } | |
381 | ||
382 | void | |
383 | machopic_validate_stub_or_non_lazy_ptr (name, validate_stub) | |
384 | const char *name; | |
385 | int validate_stub; | |
386 | { | |
df56a27f SS |
387 | char *real_name; |
388 | tree temp, ident = get_identifier (name), id2; | |
ee890fe2 SS |
389 | |
390 | for (temp = (validate_stub ? machopic_stubs : machopic_non_lazy_pointers); | |
391 | temp != NULL_TREE; | |
392 | temp = TREE_CHAIN (temp)) | |
393 | if (ident == TREE_PURPOSE (temp)) | |
394 | { | |
395 | /* Mark both the stub or non-lazy pointer as well as the | |
396 | original symbol as being referenced. */ | |
397 | TREE_USED (temp) = 1; | |
398 | if (TREE_CODE (TREE_VALUE (temp)) == IDENTIFIER_NODE) | |
399 | TREE_SYMBOL_REFERENCED (TREE_VALUE (temp)) = 1; | |
df56a27f SS |
400 | STRIP_NAME_ENCODING (real_name, IDENTIFIER_POINTER (TREE_VALUE (temp))); |
401 | id2 = maybe_get_identifier (real_name); | |
402 | if (id2) | |
403 | TREE_SYMBOL_REFERENCED (id2) = 1; | |
ee890fe2 SS |
404 | } |
405 | } | |
406 | ||
407 | /* Transform ORIG, which may be any data source, to the corresponding | |
408 | source using indirections. */ | |
409 | ||
410 | rtx | |
411 | machopic_indirect_data_reference (orig, reg) | |
412 | rtx orig, reg; | |
413 | { | |
414 | rtx ptr_ref = orig; | |
415 | ||
416 | if (! MACHOPIC_INDIRECT) | |
417 | return orig; | |
418 | ||
419 | if (GET_CODE (orig) == SYMBOL_REF) | |
420 | { | |
421 | const char *name = XSTR (orig, 0); | |
422 | ||
423 | if (machopic_data_defined_p (name)) | |
424 | { | |
425 | rtx pic_base = gen_rtx (SYMBOL_REF, Pmode, | |
426 | machopic_function_base_name ()); | |
427 | rtx offset = gen_rtx (CONST, Pmode, | |
428 | gen_rtx (MINUS, Pmode, orig, pic_base)); | |
429 | ||
430 | #if defined (TARGET_TOC) /* i.e., PowerPC */ | |
431 | rtx hi_sum_reg = reg; | |
432 | ||
433 | if (reg == NULL) | |
434 | abort (); | |
435 | ||
436 | emit_insn (gen_rtx (SET, Pmode, hi_sum_reg, | |
437 | gen_rtx (PLUS, Pmode, pic_offset_table_rtx, | |
438 | gen_rtx (HIGH, Pmode, offset)))); | |
439 | emit_insn (gen_rtx (SET, Pmode, reg, | |
440 | gen_rtx (LO_SUM, Pmode, hi_sum_reg, offset))); | |
441 | ||
442 | orig = reg; | |
443 | #else | |
444 | #if defined (HAVE_lo_sum) | |
445 | if (reg == 0) abort (); | |
446 | ||
447 | emit_insn (gen_rtx (SET, VOIDmode, reg, | |
448 | gen_rtx (HIGH, Pmode, offset))); | |
449 | emit_insn (gen_rtx (SET, VOIDmode, reg, | |
450 | gen_rtx (LO_SUM, Pmode, reg, offset))); | |
451 | emit_insn (gen_rtx (USE, VOIDmode, | |
452 | gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM))); | |
453 | ||
454 | orig = gen_rtx (PLUS, Pmode, pic_offset_table_rtx, reg); | |
455 | #endif | |
456 | #endif | |
457 | return orig; | |
458 | } | |
459 | ||
460 | ptr_ref = gen_rtx (SYMBOL_REF, Pmode, | |
461 | machopic_non_lazy_ptr_name (name)); | |
462 | ||
463 | ptr_ref = gen_rtx_MEM (Pmode, ptr_ref); | |
464 | RTX_UNCHANGING_P (ptr_ref) = 1; | |
465 | ||
466 | return ptr_ref; | |
467 | } | |
468 | else if (GET_CODE (orig) == CONST) | |
469 | { | |
470 | rtx base, result; | |
471 | ||
472 | /* legitimize both operands of the PLUS */ | |
473 | if (GET_CODE (XEXP (orig, 0)) == PLUS) | |
474 | { | |
475 | base = machopic_indirect_data_reference (XEXP (XEXP (orig, 0), 0), | |
476 | reg); | |
477 | orig = machopic_indirect_data_reference (XEXP (XEXP (orig, 0), 1), | |
478 | (base == reg ? 0 : reg)); | |
479 | } | |
480 | else | |
481 | return orig; | |
482 | ||
483 | if (MACHOPIC_PURE && GET_CODE (orig) == CONST_INT) | |
ed8908e7 | 484 | result = plus_constant (base, INTVAL (orig)); |
ee890fe2 | 485 | else |
ed8908e7 | 486 | result = gen_rtx (PLUS, Pmode, base, orig); |
ee890fe2 SS |
487 | |
488 | if (RTX_UNCHANGING_P (base) && RTX_UNCHANGING_P (orig)) | |
489 | RTX_UNCHANGING_P (result) = 1; | |
490 | ||
491 | if (MACHOPIC_JUST_INDIRECT && GET_CODE (base) == MEM) | |
492 | { | |
493 | if (reg) | |
494 | { | |
495 | emit_move_insn (reg, result); | |
496 | result = reg; | |
497 | } | |
498 | else | |
499 | { | |
500 | result = force_reg (GET_MODE (result), result); | |
501 | } | |
502 | } | |
503 | ||
504 | return result; | |
505 | ||
506 | } | |
507 | else if (GET_CODE (orig) == MEM) | |
508 | XEXP (ptr_ref, 0) = machopic_indirect_data_reference (XEXP (orig, 0), reg); | |
509 | /* When the target is i386, this code prevents crashes due to the | |
510 | compiler's ignorance on how to move the PIC base register to | |
511 | other registers. (The reload phase sometimes introduces such | |
512 | insns.) */ | |
513 | else if (GET_CODE (orig) == PLUS | |
514 | && GET_CODE (XEXP (orig, 0)) == REG | |
515 | && REGNO (XEXP (orig, 0)) == PIC_OFFSET_TABLE_REGNUM | |
516 | #ifdef I386 | |
517 | /* Prevent the same register from being erroneously used | |
518 | as both the base and index registers. */ | |
519 | && GET_CODE (XEXP (orig, 1)) == CONST | |
520 | #endif | |
521 | && reg) | |
522 | { | |
523 | emit_move_insn (reg, XEXP (orig, 0)); | |
524 | XEXP (ptr_ref, 0) = reg; | |
525 | } | |
526 | return ptr_ref; | |
527 | } | |
528 | ||
529 | /* For MACHOPIC_INDIRECT_CALL_TARGET below, we need to beware of: | |
530 | ||
531 | extern "C" { int f(); } | |
532 | struct X { int f(); int g(); }; | |
533 | int X::f() { ::f(); } | |
534 | int X::g() { ::f(); f();} | |
535 | ||
536 | This is hairy. Both calls to "::f()" need to be indirect (i.e., to | |
537 | appropriate symbol stubs), but since MACHOPIC_NAME_DEFINED_P calls | |
538 | GET_IDENTIFIER which treats "f" as "X::f", and "X::f" is indeed (being) | |
539 | defined somewhere in "X"'s inheritance hierarchy, MACHOPIC_NAME_DEFINED_P | |
540 | returns TRUE when called with "f", which means that | |
541 | MACHOPIC_INDIRECT_CALL_TARGET uses an "internal" call instead of an | |
542 | indirect one as it should. | |
543 | ||
544 | Our quick-n-dirty solution to this is to call the following | |
545 | FUNC_NAME_MAYBE_SCOPED routine which (only for C++) checks whether | |
546 | FNAME -- the name of the function which we're calling -- is NOT a | |
547 | mangled C++ name, AND if the current function being compiled is a | |
548 | method, and if so, use an "external" or "indirect" call. | |
549 | ||
550 | Note that this function will be called ONLY when MACHOPIC_INDIRECT_TARGET_P | |
551 | has already indicated that the target is NOT indirect. | |
552 | ||
553 | This conservative solution will sometimes make indirect calls where | |
554 | it might have been possible to make direct ones. | |
555 | ||
556 | FUNC_NAME_MAYBE_SCOPED returns 1 to indicate a "C" name (not scoped), | |
557 | which in turns means we should create a stub for an indirect call. | |
558 | */ | |
559 | ||
560 | static int is_cplusplus = -1; | |
561 | ||
562 | static int | |
563 | func_name_maybe_scoped (fname) | |
564 | const char *fname; | |
565 | { | |
566 | ||
567 | if (is_cplusplus < 0) | |
568 | is_cplusplus = (strcmp (lang_identify (), "cplusplus") == 0); | |
569 | ||
570 | if (is_cplusplus) | |
571 | { | |
572 | /* If we have a method, then check whether the function we're trying to | |
573 | call is a "C" function. If so, we should use an indirect call. | |
574 | ||
575 | It turns out to be hard to tell whether "we have a method", since | |
576 | static member functions have a TREE_CODE of FUNCTION_TYPE, as do | |
577 | namespace-level non-member functions. So here, we always look for | |
578 | an extern-"C"-like name, and make stubs for them no matter the | |
579 | calling context. This is temporary, and leaves nagging suspicion | |
580 | that improvements should be possible here. (I.e., I suspect that | |
581 | it can still sometimes make stubs where it needn't.) */ | |
582 | ||
583 | /* if (1 || TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE) */ | |
584 | { | |
585 | /* If fname is of the form "f__1X" or "f__Fv", it's C++. */ | |
586 | while (*fname == '_') ++fname; /* skip leading underscores */ | |
587 | while (*fname != 0) | |
588 | { | |
589 | if (fname[0] == '_' && fname[1] == '_' | |
0df6c2c7 | 590 | && (fname[2] == 'F' || ISDIGIT (fname[2]))) |
ee890fe2 SS |
591 | return 0; |
592 | ++fname; | |
593 | } | |
594 | /* Not a C++ mangled name: must be "C", in which case play safe. */ | |
595 | return 1; | |
596 | } | |
597 | } | |
598 | return 0; | |
599 | } | |
600 | ||
601 | /* Transform TARGET (a MEM), which is a function call target, to the | |
602 | corresponding symbol_stub if necessary. Return a new MEM. */ | |
603 | ||
604 | rtx | |
605 | machopic_indirect_call_target (target) | |
606 | rtx target; | |
607 | { | |
608 | if (GET_CODE (target) != MEM) | |
609 | return target; | |
610 | ||
611 | if (MACHOPIC_INDIRECT && GET_CODE (XEXP (target, 0)) == SYMBOL_REF) | |
612 | { | |
613 | enum machine_mode mode = GET_MODE (XEXP (target, 0)); | |
614 | const char *name = XSTR (XEXP (target, 0), 0); | |
615 | ||
616 | if (!machopic_name_defined_p (name) || func_name_maybe_scoped (name)) | |
617 | { | |
618 | const char *stub_name = machopic_stub_name (name); | |
619 | ||
620 | XEXP (target, 0) = gen_rtx (SYMBOL_REF, mode, stub_name); | |
621 | RTX_UNCHANGING_P (target) = 1; | |
622 | } | |
623 | } | |
624 | ||
625 | return target; | |
626 | } | |
627 | ||
628 | rtx | |
629 | machopic_legitimize_pic_address (orig, mode, reg) | |
630 | rtx orig, reg; | |
631 | enum machine_mode mode; | |
632 | { | |
633 | rtx pic_ref = orig; | |
634 | ||
635 | if (! MACHOPIC_PURE) | |
636 | return orig; | |
637 | ||
638 | /* First handle a simple SYMBOL_REF or LABEL_REF */ | |
639 | if (GET_CODE (orig) == LABEL_REF | |
640 | || (GET_CODE (orig) == SYMBOL_REF | |
641 | )) | |
642 | { | |
643 | /* addr(foo) = &func+(foo-func) */ | |
644 | rtx pic_base; | |
645 | ||
646 | orig = machopic_indirect_data_reference (orig, reg); | |
647 | ||
648 | if (GET_CODE (orig) == PLUS | |
649 | && GET_CODE (XEXP (orig, 0)) == REG) | |
650 | { | |
651 | if (reg == 0) | |
652 | return force_reg (mode, orig); | |
653 | ||
654 | emit_move_insn (reg, orig); | |
655 | return reg; | |
656 | } | |
657 | ||
658 | pic_base = gen_rtx (SYMBOL_REF, Pmode, machopic_function_base_name ()); | |
659 | ||
660 | if (GET_CODE (orig) == MEM) | |
661 | { | |
662 | if (reg == 0) | |
663 | { | |
664 | if (reload_in_progress) | |
665 | abort (); | |
666 | else | |
667 | reg = gen_reg_rtx (Pmode); | |
668 | } | |
669 | ||
670 | #ifdef HAVE_lo_sum | |
671 | if (GET_CODE (XEXP (orig, 0)) == SYMBOL_REF | |
672 | || GET_CODE (XEXP (orig, 0)) == LABEL_REF) | |
673 | { | |
674 | rtx offset = gen_rtx (CONST, Pmode, | |
675 | gen_rtx (MINUS, Pmode, | |
676 | XEXP (orig, 0), pic_base)); | |
677 | #if defined (TARGET_TOC) /* i.e., PowerPC */ | |
678 | /* Generating a new reg may expose opportunities for | |
679 | common subexpression elimination. */ | |
680 | rtx hi_sum_reg = | |
681 | (reload_in_progress ? reg : gen_reg_rtx (SImode)); | |
682 | ||
683 | emit_insn (gen_rtx (SET, Pmode, hi_sum_reg, | |
684 | gen_rtx (PLUS, Pmode, | |
685 | pic_offset_table_rtx, | |
686 | gen_rtx (HIGH, Pmode, offset)))); | |
687 | emit_insn (gen_rtx (SET, VOIDmode, reg, | |
688 | gen_rtx (MEM, GET_MODE (orig), | |
689 | gen_rtx (LO_SUM, Pmode, | |
690 | hi_sum_reg, offset)))); | |
691 | pic_ref = reg; | |
692 | ||
693 | #else | |
694 | emit_insn (gen_rtx (USE, VOIDmode, | |
695 | gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM))); | |
696 | ||
697 | emit_insn (gen_rtx (SET, VOIDmode, reg, | |
698 | gen_rtx (HIGH, Pmode, | |
699 | gen_rtx (CONST, Pmode, offset)))); | |
700 | emit_insn (gen_rtx (SET, VOIDmode, reg, | |
701 | gen_rtx (LO_SUM, Pmode, reg, | |
702 | gen_rtx (CONST, Pmode, offset)))); | |
703 | pic_ref = gen_rtx (PLUS, Pmode, | |
704 | pic_offset_table_rtx, reg); | |
705 | #endif | |
706 | } | |
707 | else | |
708 | #endif /* HAVE_lo_sum */ | |
709 | { | |
710 | rtx pic = pic_offset_table_rtx; | |
711 | if (GET_CODE (pic) != REG) | |
712 | { | |
713 | emit_move_insn (reg, pic); | |
714 | pic = reg; | |
715 | } | |
716 | #if 0 | |
717 | emit_insn (gen_rtx (USE, VOIDmode, | |
718 | gen_rtx (REG, Pmode, PIC_OFFSET_TABLE_REGNUM))); | |
719 | #endif | |
720 | ||
721 | pic_ref = gen_rtx (PLUS, Pmode, | |
722 | pic, | |
723 | gen_rtx (CONST, Pmode, | |
724 | gen_rtx (MINUS, Pmode, | |
725 | XEXP (orig, 0), | |
726 | pic_base))); | |
727 | } | |
728 | ||
729 | #if !defined (TARGET_TOC) | |
730 | RTX_UNCHANGING_P (pic_ref) = 1; | |
731 | emit_move_insn (reg, pic_ref); | |
732 | pic_ref = gen_rtx (MEM, GET_MODE (orig), reg); | |
733 | #endif | |
734 | } | |
735 | else | |
736 | { | |
737 | ||
738 | #ifdef HAVE_lo_sum | |
739 | if (GET_CODE (orig) == SYMBOL_REF | |
740 | || GET_CODE (orig) == LABEL_REF) | |
741 | { | |
742 | rtx offset = gen_rtx (CONST, Pmode, | |
743 | gen_rtx (MINUS, Pmode, orig, pic_base)); | |
744 | #if defined (TARGET_TOC) /* i.e., PowerPC */ | |
745 | rtx hi_sum_reg; | |
746 | ||
747 | if (reg == 0) | |
748 | { | |
749 | if (reload_in_progress) | |
750 | abort (); | |
751 | else | |
752 | reg = gen_reg_rtx (SImode); | |
753 | } | |
754 | ||
755 | hi_sum_reg = reg; | |
756 | ||
757 | emit_insn (gen_rtx (SET, Pmode, hi_sum_reg, | |
758 | gen_rtx (PLUS, Pmode, | |
759 | pic_offset_table_rtx, | |
760 | gen_rtx (HIGH, Pmode, offset)))); | |
761 | emit_insn (gen_rtx (SET, VOIDmode, reg, | |
762 | gen_rtx (LO_SUM, Pmode, | |
763 | hi_sum_reg, offset))); | |
764 | pic_ref = reg; | |
765 | #else | |
766 | emit_insn (gen_rtx (SET, VOIDmode, reg, | |
767 | gen_rtx (HIGH, Pmode, offset))); | |
768 | emit_insn (gen_rtx (SET, VOIDmode, reg, | |
769 | gen_rtx (LO_SUM, Pmode, reg, offset))); | |
770 | pic_ref = gen_rtx (PLUS, Pmode, | |
771 | pic_offset_table_rtx, reg); | |
772 | #endif | |
773 | } | |
774 | else | |
775 | #endif /* HAVE_lo_sum */ | |
776 | { | |
777 | if (GET_CODE (orig) == REG) | |
778 | { | |
779 | return orig; | |
780 | } | |
781 | else | |
782 | { | |
783 | rtx pic = pic_offset_table_rtx; | |
784 | if (GET_CODE (pic) != REG) | |
785 | { | |
786 | emit_move_insn (reg, pic); | |
787 | pic = reg; | |
788 | } | |
789 | #if 0 | |
790 | emit_insn (gen_rtx (USE, VOIDmode, | |
791 | pic_offset_table_rtx)); | |
792 | #endif | |
793 | pic_ref = gen_rtx (PLUS, Pmode, | |
794 | pic, | |
795 | gen_rtx (CONST, Pmode, | |
796 | gen_rtx (MINUS, Pmode, | |
797 | orig, pic_base))); | |
798 | } | |
799 | } | |
800 | } | |
801 | ||
802 | RTX_UNCHANGING_P (pic_ref) = 1; | |
803 | ||
804 | if (GET_CODE (pic_ref) != REG) | |
805 | { | |
806 | if (reg != 0) | |
807 | { | |
808 | emit_move_insn (reg, pic_ref); | |
809 | return reg; | |
810 | } | |
811 | else | |
812 | { | |
813 | return force_reg (mode, pic_ref); | |
814 | } | |
815 | } | |
816 | else | |
817 | { | |
818 | return pic_ref; | |
819 | } | |
820 | } | |
821 | ||
822 | else if (GET_CODE (orig) == SYMBOL_REF) | |
823 | return orig; | |
824 | ||
825 | else if (GET_CODE (orig) == PLUS | |
826 | && (GET_CODE (XEXP (orig, 0)) == MEM | |
827 | || GET_CODE (XEXP (orig, 0)) == SYMBOL_REF | |
828 | || GET_CODE (XEXP (orig, 0)) == LABEL_REF) | |
829 | && XEXP (orig, 0) != pic_offset_table_rtx | |
830 | && GET_CODE (XEXP (orig, 1)) != REG) | |
831 | ||
832 | { | |
833 | rtx base; | |
834 | int is_complex = (GET_CODE (XEXP (orig, 0)) == MEM); | |
835 | ||
836 | base = machopic_legitimize_pic_address (XEXP (orig, 0), Pmode, reg); | |
837 | orig = machopic_legitimize_pic_address (XEXP (orig, 1), | |
838 | Pmode, (base == reg ? 0 : reg)); | |
839 | if (GET_CODE (orig) == CONST_INT) | |
840 | { | |
ed8908e7 | 841 | pic_ref = plus_constant (base, INTVAL (orig)); |
ee890fe2 SS |
842 | is_complex = 1; |
843 | } | |
844 | else | |
ed8908e7 | 845 | pic_ref = gen_rtx (PLUS, Pmode, base, orig); |
ee890fe2 SS |
846 | |
847 | if (RTX_UNCHANGING_P (base) && RTX_UNCHANGING_P (orig)) | |
848 | RTX_UNCHANGING_P (pic_ref) = 1; | |
849 | ||
850 | if (reg && is_complex) | |
851 | { | |
852 | emit_move_insn (reg, pic_ref); | |
853 | pic_ref = reg; | |
854 | } | |
855 | /* Likewise, should we set special REG_NOTEs here? */ | |
856 | } | |
857 | ||
858 | else if (GET_CODE (orig) == CONST) | |
859 | { | |
860 | return machopic_legitimize_pic_address (XEXP (orig, 0), Pmode, reg); | |
861 | } | |
862 | ||
863 | else if (GET_CODE (orig) == MEM | |
864 | && GET_CODE (XEXP (orig, 0)) == SYMBOL_REF) | |
865 | { | |
866 | rtx addr = machopic_legitimize_pic_address (XEXP (orig, 0), Pmode, reg); | |
867 | ||
868 | addr = gen_rtx (MEM, GET_MODE (orig), addr); | |
869 | RTX_UNCHANGING_P (addr) = RTX_UNCHANGING_P (orig); | |
870 | emit_move_insn (reg, addr); | |
871 | pic_ref = reg; | |
872 | } | |
873 | ||
874 | return pic_ref; | |
875 | } | |
876 | ||
877 | ||
878 | void | |
879 | machopic_finish (asm_out_file) | |
880 | FILE *asm_out_file; | |
881 | { | |
882 | tree temp; | |
883 | ||
884 | for (temp = machopic_stubs; | |
885 | temp != NULL_TREE; | |
886 | temp = TREE_CHAIN (temp)) | |
887 | { | |
91dc3130 KG |
888 | const char *sym_name = IDENTIFIER_POINTER (TREE_VALUE (temp)); |
889 | const char *stub_name = IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
ee890fe2 SS |
890 | char *sym; |
891 | char *stub; | |
ee890fe2 SS |
892 | |
893 | if (! TREE_USED (temp)) | |
894 | continue; | |
895 | ||
df56a27f | 896 | STRIP_NAME_ENCODING (sym_name, sym_name); |
ee890fe2 SS |
897 | |
898 | sym = alloca (strlen (sym_name) + 2); | |
899 | if (sym_name[0] == '*' || sym_name[0] == '&') | |
900 | strcpy (sym, sym_name + 1); | |
901 | else if (sym_name[0] == '-' || sym_name[0] == '+') | |
902 | strcpy (sym, sym_name); | |
903 | else | |
904 | sym[0] = '_', strcpy (sym + 1, sym_name); | |
905 | ||
906 | stub = alloca (strlen (stub_name) + 2); | |
907 | if (stub_name[0] == '*' || stub_name[0] == '&') | |
908 | strcpy (stub, stub_name + 1); | |
909 | else | |
910 | stub[0] = '_', strcpy (stub + 1, stub_name); | |
911 | ||
912 | machopic_output_stub (asm_out_file, sym, stub); | |
913 | } | |
914 | ||
915 | for (temp = machopic_non_lazy_pointers; | |
916 | temp != NULL_TREE; | |
917 | temp = TREE_CHAIN (temp)) | |
918 | { | |
919 | char *sym_name = IDENTIFIER_POINTER (TREE_VALUE (temp)); | |
920 | char *lazy_name = IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
921 | #if 0 | |
922 | tree decl = lookup_name_darwin (TREE_VALUE (temp)); | |
923 | #endif | |
924 | ||
925 | if (! TREE_USED (temp)) | |
926 | continue; | |
927 | ||
928 | if (machopic_ident_defined_p (TREE_VALUE (temp)) | |
929 | #if 0 /* add back when we have private externs */ | |
930 | || (decl && DECL_PRIVATE_EXTERN (decl)) | |
931 | #endif | |
932 | ) | |
933 | { | |
934 | data_section (); | |
c8af3574 | 935 | assemble_align (GET_MODE_ALIGNMENT (Pmode)); |
ee890fe2 SS |
936 | assemble_label (lazy_name); |
937 | assemble_integer (gen_rtx (SYMBOL_REF, Pmode, sym_name), | |
c8af3574 RH |
938 | GET_MODE_SIZE (Pmode), |
939 | GET_MODE_ALIGNMENT (Pmode), 1); | |
ee890fe2 SS |
940 | } |
941 | else | |
942 | { | |
943 | machopic_nl_symbol_ptr_section (); | |
944 | assemble_name (asm_out_file, lazy_name); | |
945 | fprintf (asm_out_file, ":\n"); | |
946 | ||
947 | fprintf (asm_out_file, "\t.indirect_symbol "); | |
948 | assemble_name (asm_out_file, sym_name); | |
949 | fprintf (asm_out_file, "\n"); | |
950 | ||
c8af3574 RH |
951 | assemble_integer (const0_rtx, GET_MODE_SIZE (Pmode), |
952 | GET_MODE_ALIGNMENT (Pmode), 1); | |
ee890fe2 SS |
953 | } |
954 | } | |
955 | } | |
956 | ||
957 | int | |
958 | machopic_operand_p (op) | |
959 | rtx op; | |
960 | { | |
961 | if (MACHOPIC_JUST_INDIRECT) | |
962 | { | |
963 | while (GET_CODE (op) == CONST) | |
964 | op = XEXP (op, 0); | |
965 | ||
966 | if (GET_CODE (op) == SYMBOL_REF) | |
967 | return machopic_name_defined_p (XSTR (op, 0)); | |
968 | else | |
969 | return 0; | |
970 | } | |
971 | ||
972 | while (GET_CODE (op) == CONST) | |
973 | op = XEXP (op, 0); | |
974 | ||
975 | if (GET_CODE (op) == MINUS | |
976 | && GET_CODE (XEXP (op, 0)) == SYMBOL_REF | |
977 | && GET_CODE (XEXP (op, 1)) == SYMBOL_REF | |
978 | && machopic_name_defined_p (XSTR (XEXP (op, 0), 0)) | |
979 | && machopic_name_defined_p (XSTR (XEXP (op, 1), 0))) | |
980 | return 1; | |
981 | ||
982 | #if 0 /*def TARGET_TOC*/ /* i.e., PowerPC */ | |
983 | /* Without this statement, the compiler crashes while compiling enquire.c | |
984 | when targetting PowerPC. It is not known why this code is not needed | |
985 | when targetting other processors. */ | |
986 | else if (GET_CODE (op) == SYMBOL_REF | |
987 | && (machopic_classify_name (XSTR (op, 0)) | |
988 | == MACHOPIC_DEFINED_FUNCTION)) | |
989 | { | |
990 | return 1; | |
991 | } | |
992 | #endif | |
993 | ||
994 | return 0; | |
995 | } | |
df56a27f SS |
996 | |
997 | /* This function records whether a given name corresponds to a defined | |
998 | or undefined function or variable, for machopic_classify_ident to | |
999 | use later. */ | |
1000 | ||
1001 | void | |
1002 | darwin_encode_section_info (decl) | |
1003 | tree decl; | |
1004 | { | |
1005 | char code = '\0'; | |
1006 | int defined = 0; | |
353e51f8 | 1007 | rtx sym_ref; |
c0cbc013 DJ |
1008 | const char *orig_str; |
1009 | char *new_str; | |
353e51f8 | 1010 | size_t len, new_len; |
df56a27f SS |
1011 | |
1012 | if ((TREE_CODE (decl) == FUNCTION_DECL | |
1013 | || TREE_CODE (decl) == VAR_DECL) | |
70bdc2ff | 1014 | && !DECL_EXTERNAL (decl) |
df56a27f SS |
1015 | && ((TREE_STATIC (decl) |
1016 | && (!DECL_COMMON (decl) || !TREE_PUBLIC (decl))) | |
abe72dd8 SS |
1017 | || (DECL_INITIAL (decl) |
1018 | && DECL_INITIAL (decl) != error_mark_node))) | |
df56a27f SS |
1019 | defined = 1; |
1020 | ||
1021 | if (TREE_CODE (decl) == FUNCTION_DECL) | |
1022 | code = (defined ? 'T' : 't'); | |
1023 | else if (TREE_CODE (decl) == VAR_DECL) | |
1024 | code = (defined ? 'D' : 'd'); | |
1025 | ||
353e51f8 SS |
1026 | if (code == '\0') |
1027 | return; | |
df56a27f | 1028 | |
353e51f8 SS |
1029 | sym_ref = XEXP (DECL_RTL (decl), 0); |
1030 | orig_str = XSTR (sym_ref, 0); | |
1031 | len = strlen (orig_str) + 1; | |
df56a27f | 1032 | |
353e51f8 SS |
1033 | if (orig_str[0] == '!') |
1034 | { | |
1035 | /* Already encoded; see if we need to change it. */ | |
1036 | if (code == orig_str[1]) | |
1037 | return; | |
1038 | /* Yes, tweak a copy of the name and put it in a new string. */ | |
1039 | new_str = alloca (len); | |
1040 | memcpy (new_str, orig_str, len); | |
1041 | new_str[1] = code; | |
1042 | XSTR (sym_ref, 0) = ggc_alloc_string (new_str, len); | |
353e51f8 SS |
1043 | } |
1044 | else | |
1045 | { | |
1046 | /* Add the encoding. */ | |
1047 | new_len = len + 4; | |
1048 | new_str = alloca (new_len); | |
1049 | new_str[0] = '!'; | |
1050 | new_str[1] = code; | |
1051 | new_str[2] = '_'; | |
1052 | new_str[3] = '_'; | |
1053 | memcpy (new_str + 4, orig_str, len); | |
1054 | XSTR (sym_ref, 0) = ggc_alloc_string (new_str, new_len); | |
df56a27f | 1055 | } |
4e08ba6c SS |
1056 | /* The non-lazy pointer list may have captured references to the |
1057 | old encoded name, change them. */ | |
1058 | update_non_lazy_ptrs (XSTR (sym_ref, 0)); | |
1059 | update_stubs (XSTR (sym_ref, 0)); | |
df56a27f SS |
1060 | } |
1061 | ||
1062 | /* Scan the list of non-lazy pointers and update any recorded names whose | |
1063 | stripped name matches the argument. */ | |
1064 | ||
1065 | static void | |
1066 | update_non_lazy_ptrs (name) | |
1067 | const char *name; | |
1068 | { | |
91dc3130 | 1069 | const char *name1, *name2; |
df56a27f SS |
1070 | tree temp; |
1071 | ||
1072 | STRIP_NAME_ENCODING (name1, name); | |
1073 | ||
1074 | for (temp = machopic_non_lazy_pointers; | |
1075 | temp != NULL_TREE; | |
1076 | temp = TREE_CHAIN (temp)) | |
1077 | { | |
1078 | char *sym_name = IDENTIFIER_POINTER (TREE_VALUE (temp)); | |
1079 | ||
1080 | if (*sym_name == '!') | |
1081 | { | |
1082 | STRIP_NAME_ENCODING (name2, sym_name); | |
1083 | if (strcmp (name1, name2) == 0) | |
1084 | { | |
1085 | IDENTIFIER_POINTER (TREE_VALUE (temp)) = name; | |
1086 | break; | |
1087 | } | |
1088 | } | |
1089 | } | |
1090 | } | |
4e08ba6c SS |
1091 | |
1092 | ||
1093 | /* Scan the list of stubs and update any recorded names whose | |
1094 | stripped name matches the argument. */ | |
1095 | ||
1096 | static void | |
1097 | update_stubs (name) | |
1098 | const char *name; | |
1099 | { | |
91dc3130 | 1100 | const char *name1, *name2; |
4e08ba6c SS |
1101 | tree temp; |
1102 | ||
1103 | STRIP_NAME_ENCODING (name1, name); | |
1104 | ||
1105 | for (temp = machopic_stubs; | |
1106 | temp != NULL_TREE; | |
1107 | temp = TREE_CHAIN (temp)) | |
1108 | { | |
1109 | char *sym_name = IDENTIFIER_POINTER (TREE_VALUE (temp)); | |
1110 | ||
1111 | if (*sym_name == '!') | |
1112 | { | |
1113 | STRIP_NAME_ENCODING (name2, sym_name); | |
1114 | if (strcmp (name1, name2) == 0) | |
1115 | { | |
1116 | IDENTIFIER_POINTER (TREE_VALUE (temp)) = name; | |
1117 | break; | |
1118 | } | |
1119 | } | |
1120 | } | |
1121 | } | |
2cc07db4 RH |
1122 | |
1123 | void | |
1124 | machopic_asm_out_constructor (symbol, priority) | |
1125 | rtx symbol; | |
1126 | int priority ATTRIBUTE_UNUSED; | |
1127 | { | |
1128 | if (flag_pic) | |
1129 | mod_init_section (); | |
1130 | else | |
1131 | constructor_section (); | |
c8af3574 RH |
1132 | assemble_align (POINTER_SIZE); |
1133 | assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1); | |
2cc07db4 RH |
1134 | |
1135 | if (!flag_pic) | |
1136 | fprintf (asm_out_file, ".reference .constructors_used\n"); | |
1137 | } | |
1138 | ||
1139 | void | |
1140 | machopic_asm_out_destructor (symbol, priority) | |
1141 | rtx symbol; | |
1142 | int priority ATTRIBUTE_UNUSED; | |
1143 | { | |
1144 | if (flag_pic) | |
1145 | mod_term_section (); | |
1146 | else | |
1147 | destructor_section (); | |
c8af3574 RH |
1148 | assemble_align (POINTER_SIZE); |
1149 | assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1); | |
2cc07db4 RH |
1150 | |
1151 | if (!flag_pic) | |
1152 | fprintf (asm_out_file, ".reference .destructors_used\n"); | |
1153 | } |