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ee890fe2 | 1 | /* Functions for generic Darwin as target machine for GNU C compiler. |
0ea5865c | 2 | Copyright (C) 1989, 1990, 1991, 1992, 1993, 2000, 2001, 2002, 2003, 2004 |
ee890fe2 SS |
3 | Free Software Foundation, Inc. |
4 | Contributed by Apple Computer Inc. | |
5 | ||
7ec022b2 | 6 | This file is part of GCC. |
ee890fe2 | 7 | |
7ec022b2 | 8 | GCC is free software; you can redistribute it and/or modify |
ee890fe2 SS |
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 | ||
7ec022b2 | 13 | GCC is distributed in the hope that it will be useful, |
ee890fe2 SS |
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 | |
7ec022b2 | 19 | along with GCC; see the file COPYING. If not, write to |
ee890fe2 SS |
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" | |
4977bab6 ZW |
25 | #include "coretypes.h" |
26 | #include "tm.h" | |
ee890fe2 SS |
27 | #include "rtl.h" |
28 | #include "regs.h" | |
29 | #include "hard-reg-set.h" | |
30 | #include "real.h" | |
31 | #include "insn-config.h" | |
32 | #include "conditions.h" | |
33 | #include "insn-flags.h" | |
34 | #include "output.h" | |
35 | #include "insn-attr.h" | |
36 | #include "flags.h" | |
37 | #include "tree.h" | |
38 | #include "expr.h" | |
39 | #include "reload.h" | |
ee890fe2 SS |
40 | #include "function.h" |
41 | #include "ggc.h" | |
3ac88239 | 42 | #include "langhooks.h" |
245ff137 | 43 | #include "tm_p.h" |
6ce4806b | 44 | #include "errors.h" |
ee890fe2 | 45 | |
9c808aad AJ |
46 | static int machopic_data_defined_p (const char *); |
47 | static void update_non_lazy_ptrs (const char *); | |
48 | static void update_stubs (const char *); | |
6f94a68e | 49 | static const char *machopic_non_lazy_ptr_name (const char*); |
ee890fe2 | 50 | |
ee890fe2 | 51 | int |
9c808aad | 52 | name_needs_quotes (const char *name) |
ee890fe2 SS |
53 | { |
54 | int c; | |
55 | while ((c = *name++) != '\0') | |
6f94a68e | 56 | if (! ISIDNUM (c) && c != '.' && c != '$') |
ee890fe2 SS |
57 | return 1; |
58 | return 0; | |
59 | } | |
60 | ||
9c808aad | 61 | /* |
ee890fe2 SS |
62 | * flag_pic = 1 ... generate only indirections |
63 | * flag_pic = 2 ... generate indirections and pure code | |
64 | */ | |
65 | ||
66 | /* This module assumes that (const (symbol_ref "foo")) is a legal pic | |
67 | reference, which will not be changed. */ | |
68 | ||
e2500fed | 69 | static GTY(()) tree machopic_defined_list; |
ee890fe2 SS |
70 | |
71 | enum machopic_addr_class | |
9c808aad | 72 | machopic_classify_ident (tree ident) |
ee890fe2 SS |
73 | { |
74 | const char *name = IDENTIFIER_POINTER (ident); | |
75 | int lprefix = (((name[0] == '*' || name[0] == '&') | |
76 | && (name[1] == 'L' || (name[1] == '"' && name[2] == 'L'))) | |
9c808aad AJ |
77 | || ( name[0] == '_' |
78 | && name[1] == 'O' | |
79 | && name[2] == 'B' | |
ee890fe2 SS |
80 | && name[3] == 'J' |
81 | && name[4] == 'C' | |
82 | && name[5] == '_')); | |
df56a27f | 83 | tree temp; |
9c808aad | 84 | |
ff482c8d | 85 | /* The PIC base symbol is always defined. */ |
1622229c AP |
86 | if (! strcmp (name, "<pic base>")) |
87 | return MACHOPIC_DEFINED_DATA; | |
ee890fe2 | 88 | |
df56a27f | 89 | if (name[0] != '!') |
ee890fe2 | 90 | { |
df56a27f | 91 | /* Here if no special encoding to be found. */ |
ee890fe2 SS |
92 | if (lprefix) |
93 | { | |
94 | const char *name = IDENTIFIER_POINTER (ident); | |
95 | int len = strlen (name); | |
96 | ||
97 | if ((len > 5 && !strcmp (name + len - 5, "$stub")) | |
98 | || (len > 6 && !strcmp (name + len - 6, "$stub\""))) | |
99 | return MACHOPIC_DEFINED_FUNCTION; | |
100 | return MACHOPIC_DEFINED_DATA; | |
101 | } | |
102 | ||
103 | for (temp = machopic_defined_list; | |
104 | temp != NULL_TREE; | |
105 | temp = TREE_CHAIN (temp)) | |
106 | { | |
107 | if (ident == TREE_VALUE (temp)) | |
108 | return MACHOPIC_DEFINED_DATA; | |
109 | } | |
110 | ||
111 | if (TREE_ASM_WRITTEN (ident)) | |
112 | return MACHOPIC_DEFINED_DATA; | |
113 | ||
114 | return MACHOPIC_UNDEFINED; | |
115 | } | |
116 | ||
df56a27f SS |
117 | else if (name[1] == 'D') |
118 | return MACHOPIC_DEFINED_DATA; | |
ee890fe2 | 119 | |
df56a27f SS |
120 | else if (name[1] == 'T') |
121 | return MACHOPIC_DEFINED_FUNCTION; | |
ee890fe2 | 122 | |
b7fb9feb TC |
123 | /* It is possible that someone is holding a "stale" name, which has |
124 | since been defined. See if there is a "defined" name (i.e, | |
125 | different from NAME only in having a '!D_' or a '!T_' instead of | |
126 | a '!d_' or '!t_' prefix) in the identifier hash tables. If so, say | |
127 | that this identifier is defined. */ | |
128 | else if (name[1] == 'd' || name[1] == 't') | |
129 | { | |
130 | char *new_name; | |
131 | new_name = (char *)alloca (strlen (name) + 1); | |
132 | strcpy (new_name, name); | |
133 | new_name[1] = (name[1] == 'd') ? 'D' : 'T'; | |
134 | if (maybe_get_identifier (new_name) != NULL) | |
135 | return (name[1] == 'd') ? MACHOPIC_DEFINED_DATA | |
136 | : MACHOPIC_DEFINED_FUNCTION; | |
137 | } | |
138 | ||
ee890fe2 SS |
139 | for (temp = machopic_defined_list; temp != NULL_TREE; temp = TREE_CHAIN (temp)) |
140 | { | |
141 | if (ident == TREE_VALUE (temp)) | |
142 | { | |
df56a27f | 143 | if (name[1] == 'T') |
ee890fe2 SS |
144 | return MACHOPIC_DEFINED_FUNCTION; |
145 | else | |
146 | return MACHOPIC_DEFINED_DATA; | |
147 | } | |
148 | } | |
9c808aad | 149 | |
df56a27f | 150 | if (name[1] == 't' || name[1] == 'T') |
ee890fe2 SS |
151 | { |
152 | if (lprefix) | |
153 | return MACHOPIC_DEFINED_FUNCTION; | |
154 | else | |
155 | return MACHOPIC_UNDEFINED_FUNCTION; | |
156 | } | |
157 | else | |
158 | { | |
159 | if (lprefix) | |
160 | return MACHOPIC_DEFINED_DATA; | |
161 | else | |
162 | return MACHOPIC_UNDEFINED_DATA; | |
163 | } | |
164 | } | |
165 | ||
9c808aad | 166 | |
ee890fe2 | 167 | enum machopic_addr_class |
9c808aad | 168 | machopic_classify_name (const char *name) |
ee890fe2 SS |
169 | { |
170 | return machopic_classify_ident (get_identifier (name)); | |
171 | } | |
172 | ||
173 | int | |
9c808aad | 174 | machopic_ident_defined_p (tree ident) |
ee890fe2 SS |
175 | { |
176 | switch (machopic_classify_ident (ident)) | |
177 | { | |
178 | case MACHOPIC_UNDEFINED: | |
179 | case MACHOPIC_UNDEFINED_DATA: | |
180 | case MACHOPIC_UNDEFINED_FUNCTION: | |
181 | return 0; | |
182 | default: | |
183 | return 1; | |
184 | } | |
185 | } | |
186 | ||
187 | static int | |
9c808aad | 188 | machopic_data_defined_p (const char *name) |
ee890fe2 SS |
189 | { |
190 | switch (machopic_classify_ident (get_identifier (name))) | |
191 | { | |
192 | case MACHOPIC_DEFINED_DATA: | |
193 | return 1; | |
194 | default: | |
195 | return 0; | |
196 | } | |
197 | } | |
198 | ||
199 | int | |
9c808aad | 200 | machopic_name_defined_p (const char *name) |
ee890fe2 SS |
201 | { |
202 | return machopic_ident_defined_p (get_identifier (name)); | |
203 | } | |
204 | ||
205 | void | |
9c808aad | 206 | machopic_define_ident (tree ident) |
ee890fe2 SS |
207 | { |
208 | if (!machopic_ident_defined_p (ident)) | |
9c808aad | 209 | machopic_defined_list = |
ee890fe2 SS |
210 | tree_cons (NULL_TREE, ident, machopic_defined_list); |
211 | } | |
212 | ||
213 | void | |
9c808aad | 214 | machopic_define_name (const char *name) |
ee890fe2 SS |
215 | { |
216 | machopic_define_ident (get_identifier (name)); | |
217 | } | |
218 | ||
6788f5ca | 219 | static GTY(()) char * function_base; |
ee890fe2 | 220 | |
92c1a778 | 221 | const char * |
9c808aad | 222 | machopic_function_base_name (void) |
ee890fe2 | 223 | { |
ab82a49f AP |
224 | /* if dynamic-no-pic is on, we should not get here */ |
225 | if (MACHO_DYNAMIC_NO_PIC_P) | |
226 | abort (); | |
ee890fe2 | 227 | |
1622229c | 228 | if (function_base == NULL) |
9c808aad | 229 | function_base = |
1622229c AP |
230 | (char *) ggc_alloc_string ("<pic base>", sizeof ("<pic base>")); |
231 | ||
232 | current_function_uses_pic_offset_table = 1; | |
233 | ||
234 | return function_base; | |
235 | } | |
236 | ||
237 | static GTY(()) const char * function_base_func_name; | |
238 | static GTY(()) int current_pic_label_num; | |
239 | ||
240 | void | |
241 | machopic_output_function_base_name (FILE *file) | |
242 | { | |
243 | const char *current_name; | |
244 | ||
ff482c8d | 245 | /* If dynamic-no-pic is on, we should not get here. */ |
1622229c AP |
246 | if (MACHO_DYNAMIC_NO_PIC_P) |
247 | abort (); | |
9c808aad | 248 | current_name = |
1622229c | 249 | IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (current_function_decl)); |
6788f5ca | 250 | if (function_base_func_name != current_name) |
ee890fe2 | 251 | { |
ee890fe2 | 252 | ++current_pic_label_num; |
6788f5ca | 253 | function_base_func_name = current_name; |
ee890fe2 | 254 | } |
1622229c | 255 | fprintf (file, "\"L%011d$pb\"", current_pic_label_num); |
ee890fe2 SS |
256 | } |
257 | ||
e2500fed | 258 | static GTY(()) tree machopic_non_lazy_pointers; |
ee890fe2 SS |
259 | |
260 | /* Return a non-lazy pointer name corresponding to the given name, | |
261 | either by finding it in our list of pointer names, or by generating | |
262 | a new one. */ | |
263 | ||
6f94a68e | 264 | static const char * |
9c808aad | 265 | machopic_non_lazy_ptr_name (const char *name) |
ee890fe2 | 266 | { |
7ae8cf75 | 267 | const char *temp_name; |
ee890fe2 | 268 | tree temp, ident = get_identifier (name); |
9c808aad | 269 | |
ee890fe2 | 270 | for (temp = machopic_non_lazy_pointers; |
9c808aad | 271 | temp != NULL_TREE; |
ee890fe2 SS |
272 | temp = TREE_CHAIN (temp)) |
273 | { | |
274 | if (ident == TREE_VALUE (temp)) | |
275 | return IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
276 | } | |
277 | ||
772c5265 | 278 | name = darwin_strip_name_encoding (name); |
df56a27f SS |
279 | |
280 | /* Try again, but comparing names this time. */ | |
281 | for (temp = machopic_non_lazy_pointers; | |
9c808aad | 282 | temp != NULL_TREE; |
df56a27f SS |
283 | temp = TREE_CHAIN (temp)) |
284 | { | |
285 | if (TREE_VALUE (temp)) | |
286 | { | |
287 | temp_name = IDENTIFIER_POINTER (TREE_VALUE (temp)); | |
772c5265 | 288 | temp_name = darwin_strip_name_encoding (temp_name); |
df56a27f SS |
289 | if (strcmp (name, temp_name) == 0) |
290 | return IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
291 | } | |
292 | } | |
293 | ||
ee890fe2 SS |
294 | { |
295 | char *buffer; | |
6e08ecd1 AP |
296 | int namelen = strlen (name); |
297 | int bufferlen = 0; | |
ee890fe2 SS |
298 | tree ptr_name; |
299 | ||
6e08ecd1 | 300 | buffer = alloca (namelen + strlen("$non_lazy_ptr") + 5); |
ee890fe2 SS |
301 | |
302 | strcpy (buffer, "&L"); | |
6e08ecd1 | 303 | bufferlen = 2; |
ee890fe2 | 304 | if (name[0] == '*') |
6e08ecd1 | 305 | { |
77a7ed60 | 306 | memcpy (buffer + bufferlen, name+1, namelen-1+1); |
6e08ecd1 AP |
307 | bufferlen += namelen-1; |
308 | } | |
ee890fe2 SS |
309 | else |
310 | { | |
6e08ecd1 | 311 | buffer[bufferlen] = '_'; |
77a7ed60 | 312 | memcpy (buffer + bufferlen +1, name, namelen+1); |
75f60443 | 313 | bufferlen += namelen +1; |
ee890fe2 | 314 | } |
9c808aad | 315 | |
77a7ed60 | 316 | memcpy (buffer + bufferlen, "$non_lazy_ptr", strlen("$non_lazy_ptr")+1); |
6e08ecd1 | 317 | bufferlen += strlen("$non_lazy_ptr"); |
ee890fe2 SS |
318 | ptr_name = get_identifier (buffer); |
319 | ||
9c808aad | 320 | machopic_non_lazy_pointers |
ee890fe2 SS |
321 | = tree_cons (ptr_name, ident, machopic_non_lazy_pointers); |
322 | ||
323 | TREE_USED (machopic_non_lazy_pointers) = 0; | |
324 | ||
325 | return IDENTIFIER_POINTER (ptr_name); | |
326 | } | |
327 | } | |
328 | ||
e2500fed | 329 | static GTY(()) tree machopic_stubs; |
ee890fe2 SS |
330 | |
331 | /* Return the name of the stub corresponding to the given name, | |
332 | generating a new stub name if necessary. */ | |
333 | ||
9c808aad AJ |
334 | const char * |
335 | machopic_stub_name (const char *name) | |
ee890fe2 SS |
336 | { |
337 | tree temp, ident = get_identifier (name); | |
93913281 SS |
338 | const char *tname; |
339 | ||
ee890fe2 | 340 | for (temp = machopic_stubs; |
9c808aad | 341 | temp != NULL_TREE; |
ee890fe2 SS |
342 | temp = TREE_CHAIN (temp)) |
343 | { | |
344 | if (ident == TREE_VALUE (temp)) | |
345 | return IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
93913281 SS |
346 | tname = IDENTIFIER_POINTER (TREE_VALUE (temp)); |
347 | if (strcmp (name, tname) == 0) | |
348 | return IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
349 | /* A library call name might not be section-encoded yet, so try | |
350 | it against a stripped name. */ | |
351 | if (name[0] != '!' | |
352 | && tname[0] == '!' | |
353 | && strcmp (name, tname + 4) == 0) | |
4e08ba6c | 354 | return IDENTIFIER_POINTER (TREE_PURPOSE (temp)); |
ee890fe2 SS |
355 | } |
356 | ||
772c5265 | 357 | name = darwin_strip_name_encoding (name); |
df56a27f | 358 | |
ee890fe2 SS |
359 | { |
360 | char *buffer; | |
6e08ecd1 AP |
361 | int bufferlen = 0; |
362 | int namelen = strlen (name); | |
ee890fe2 SS |
363 | tree ptr_name; |
364 | int needs_quotes = name_needs_quotes (name); | |
365 | ||
6e08ecd1 | 366 | buffer = alloca (namelen + 20); |
ee890fe2 SS |
367 | |
368 | if (needs_quotes) | |
6e08ecd1 AP |
369 | { |
370 | strcpy (buffer, "&\"L"); | |
371 | bufferlen = strlen("&\"L"); | |
372 | } | |
ee890fe2 | 373 | else |
6e08ecd1 AP |
374 | { |
375 | strcpy (buffer, "&L"); | |
376 | bufferlen = strlen("&L"); | |
377 | } | |
378 | ||
ee890fe2 SS |
379 | if (name[0] == '*') |
380 | { | |
77a7ed60 | 381 | memcpy (buffer + bufferlen, name+1, namelen - 1 +1); |
6e08ecd1 | 382 | bufferlen += namelen - 1; |
ee890fe2 SS |
383 | } |
384 | else | |
385 | { | |
6e08ecd1 | 386 | buffer[bufferlen] = '_'; |
77a7ed60 | 387 | memcpy (buffer + bufferlen +1, name, namelen+1); |
75f60443 | 388 | bufferlen += namelen +1; |
ee890fe2 SS |
389 | } |
390 | ||
391 | if (needs_quotes) | |
6e08ecd1 | 392 | { |
77a7ed60 | 393 | memcpy (buffer + bufferlen, "$stub\"", strlen("$stub\"")+1); |
6e08ecd1 AP |
394 | bufferlen += strlen("$stub\""); |
395 | } | |
ee890fe2 | 396 | else |
6e08ecd1 | 397 | { |
77a7ed60 | 398 | memcpy (buffer + bufferlen, "$stub", strlen("$stub")+1); |
6e08ecd1 AP |
399 | bufferlen += strlen("$stub"); |
400 | } | |
ee890fe2 SS |
401 | ptr_name = get_identifier (buffer); |
402 | ||
403 | machopic_stubs = tree_cons (ptr_name, ident, machopic_stubs); | |
404 | TREE_USED (machopic_stubs) = 0; | |
405 | ||
406 | return IDENTIFIER_POINTER (ptr_name); | |
407 | } | |
408 | } | |
409 | ||
410 | void | |
9c808aad | 411 | machopic_validate_stub_or_non_lazy_ptr (const char *name, int validate_stub) |
ee890fe2 | 412 | { |
7ae8cf75 | 413 | const char *real_name; |
df56a27f | 414 | tree temp, ident = get_identifier (name), id2; |
ee890fe2 SS |
415 | |
416 | for (temp = (validate_stub ? machopic_stubs : machopic_non_lazy_pointers); | |
417 | temp != NULL_TREE; | |
418 | temp = TREE_CHAIN (temp)) | |
419 | if (ident == TREE_PURPOSE (temp)) | |
420 | { | |
421 | /* Mark both the stub or non-lazy pointer as well as the | |
422 | original symbol as being referenced. */ | |
423 | TREE_USED (temp) = 1; | |
424 | if (TREE_CODE (TREE_VALUE (temp)) == IDENTIFIER_NODE) | |
af0f185b | 425 | mark_referenced (TREE_VALUE (temp)); |
772c5265 RH |
426 | real_name = IDENTIFIER_POINTER (TREE_VALUE (temp)); |
427 | real_name = darwin_strip_name_encoding (real_name); | |
df56a27f SS |
428 | id2 = maybe_get_identifier (real_name); |
429 | if (id2) | |
af0f185b | 430 | mark_referenced (id2); |
ee890fe2 SS |
431 | } |
432 | } | |
433 | ||
434 | /* Transform ORIG, which may be any data source, to the corresponding | |
435 | source using indirections. */ | |
436 | ||
437 | rtx | |
9c808aad | 438 | machopic_indirect_data_reference (rtx orig, rtx reg) |
ee890fe2 SS |
439 | { |
440 | rtx ptr_ref = orig; | |
9c808aad | 441 | |
ee890fe2 SS |
442 | if (! MACHOPIC_INDIRECT) |
443 | return orig; | |
444 | ||
445 | if (GET_CODE (orig) == SYMBOL_REF) | |
446 | { | |
447 | const char *name = XSTR (orig, 0); | |
ab82a49f AP |
448 | int defined = machopic_data_defined_p (name); |
449 | ||
450 | if (defined && MACHO_DYNAMIC_NO_PIC_P) | |
451 | { | |
452 | #if defined (TARGET_TOC) | |
9c808aad | 453 | emit_insn (gen_macho_high (reg, orig)); |
ab82a49f AP |
454 | emit_insn (gen_macho_low (reg, reg, orig)); |
455 | #else | |
456 | /* some other cpu -- writeme! */ | |
457 | abort (); | |
458 | #endif | |
459 | return reg; | |
460 | } | |
461 | else if (defined) | |
ee890fe2 | 462 | { |
7ae8cf75 | 463 | #if defined (TARGET_TOC) || defined (HAVE_lo_sum) |
6f94a68e GK |
464 | rtx pic_base = gen_rtx_SYMBOL_REF (Pmode, |
465 | machopic_function_base_name ()); | |
466 | rtx offset = gen_rtx_CONST (Pmode, | |
467 | gen_rtx_MINUS (Pmode, orig, pic_base)); | |
7ae8cf75 | 468 | #endif |
ee890fe2 SS |
469 | |
470 | #if defined (TARGET_TOC) /* i.e., PowerPC */ | |
d9b46dfb | 471 | rtx hi_sum_reg = (no_new_pseudos ? reg : gen_reg_rtx (Pmode)); |
ee890fe2 SS |
472 | |
473 | if (reg == NULL) | |
474 | abort (); | |
475 | ||
6f94a68e GK |
476 | emit_insn (gen_rtx_SET (Pmode, hi_sum_reg, |
477 | gen_rtx_PLUS (Pmode, pic_offset_table_rtx, | |
478 | gen_rtx_HIGH (Pmode, offset)))); | |
479 | emit_insn (gen_rtx_SET (Pmode, reg, | |
480 | gen_rtx_LO_SUM (Pmode, hi_sum_reg, offset))); | |
ee890fe2 SS |
481 | |
482 | orig = reg; | |
483 | #else | |
484 | #if defined (HAVE_lo_sum) | |
485 | if (reg == 0) abort (); | |
486 | ||
6f94a68e GK |
487 | emit_insn (gen_rtx_SET (VOIDmode, reg, |
488 | gen_rtx_HIGH (Pmode, offset))); | |
489 | emit_insn (gen_rtx_SET (VOIDmode, reg, | |
490 | gen_rtx_LO_SUM (Pmode, reg, offset))); | |
491 | emit_insn (gen_rtx_USE (VOIDmode, pic_offset_table_rtx)); | |
ee890fe2 | 492 | |
6f94a68e | 493 | orig = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, reg); |
ee890fe2 SS |
494 | #endif |
495 | #endif | |
496 | return orig; | |
497 | } | |
498 | ||
6f94a68e GK |
499 | ptr_ref = gen_rtx_SYMBOL_REF (Pmode, |
500 | machopic_non_lazy_ptr_name (name)); | |
ee890fe2 SS |
501 | |
502 | ptr_ref = gen_rtx_MEM (Pmode, ptr_ref); | |
503 | RTX_UNCHANGING_P (ptr_ref) = 1; | |
504 | ||
505 | return ptr_ref; | |
506 | } | |
507 | else if (GET_CODE (orig) == CONST) | |
508 | { | |
509 | rtx base, result; | |
510 | ||
511 | /* legitimize both operands of the PLUS */ | |
512 | if (GET_CODE (XEXP (orig, 0)) == PLUS) | |
513 | { | |
514 | base = machopic_indirect_data_reference (XEXP (XEXP (orig, 0), 0), | |
515 | reg); | |
516 | orig = machopic_indirect_data_reference (XEXP (XEXP (orig, 0), 1), | |
517 | (base == reg ? 0 : reg)); | |
518 | } | |
9c808aad | 519 | else |
ee890fe2 SS |
520 | return orig; |
521 | ||
522 | if (MACHOPIC_PURE && GET_CODE (orig) == CONST_INT) | |
ed8908e7 | 523 | result = plus_constant (base, INTVAL (orig)); |
ee890fe2 | 524 | else |
6f94a68e | 525 | result = gen_rtx_PLUS (Pmode, base, orig); |
ee890fe2 | 526 | |
ee890fe2 SS |
527 | if (MACHOPIC_JUST_INDIRECT && GET_CODE (base) == MEM) |
528 | { | |
529 | if (reg) | |
530 | { | |
531 | emit_move_insn (reg, result); | |
532 | result = reg; | |
533 | } | |
534 | else | |
535 | { | |
536 | result = force_reg (GET_MODE (result), result); | |
537 | } | |
538 | } | |
539 | ||
540 | return result; | |
541 | ||
542 | } | |
543 | else if (GET_CODE (orig) == MEM) | |
544 | XEXP (ptr_ref, 0) = machopic_indirect_data_reference (XEXP (orig, 0), reg); | |
545 | /* When the target is i386, this code prevents crashes due to the | |
546 | compiler's ignorance on how to move the PIC base register to | |
547 | other registers. (The reload phase sometimes introduces such | |
548 | insns.) */ | |
549 | else if (GET_CODE (orig) == PLUS | |
550 | && GET_CODE (XEXP (orig, 0)) == REG | |
551 | && REGNO (XEXP (orig, 0)) == PIC_OFFSET_TABLE_REGNUM | |
552 | #ifdef I386 | |
553 | /* Prevent the same register from being erroneously used | |
554 | as both the base and index registers. */ | |
555 | && GET_CODE (XEXP (orig, 1)) == CONST | |
556 | #endif | |
557 | && reg) | |
558 | { | |
559 | emit_move_insn (reg, XEXP (orig, 0)); | |
560 | XEXP (ptr_ref, 0) = reg; | |
561 | } | |
562 | return ptr_ref; | |
563 | } | |
564 | ||
ee890fe2 SS |
565 | /* Transform TARGET (a MEM), which is a function call target, to the |
566 | corresponding symbol_stub if necessary. Return a new MEM. */ | |
567 | ||
568 | rtx | |
9c808aad | 569 | machopic_indirect_call_target (rtx target) |
ee890fe2 SS |
570 | { |
571 | if (GET_CODE (target) != MEM) | |
572 | return target; | |
573 | ||
574 | if (MACHOPIC_INDIRECT && GET_CODE (XEXP (target, 0)) == SYMBOL_REF) | |
9c808aad | 575 | { |
ee890fe2 SS |
576 | enum machine_mode mode = GET_MODE (XEXP (target, 0)); |
577 | const char *name = XSTR (XEXP (target, 0), 0); | |
578 | ||
b7fb9feb TC |
579 | /* If the name is already defined, we need do nothing. */ |
580 | if (name[0] == '!' && name[1] == 'T') | |
581 | return target; | |
582 | ||
583 | if (!machopic_name_defined_p (name)) | |
ee890fe2 SS |
584 | { |
585 | const char *stub_name = machopic_stub_name (name); | |
586 | ||
6f94a68e | 587 | XEXP (target, 0) = gen_rtx_SYMBOL_REF (mode, stub_name); |
ee890fe2 | 588 | RTX_UNCHANGING_P (target) = 1; |
9c808aad | 589 | } |
ee890fe2 SS |
590 | } |
591 | ||
592 | return target; | |
593 | } | |
594 | ||
595 | rtx | |
9c808aad | 596 | machopic_legitimize_pic_address (rtx orig, enum machine_mode mode, rtx reg) |
ee890fe2 SS |
597 | { |
598 | rtx pic_ref = orig; | |
599 | ||
ab82a49f | 600 | if (! MACHOPIC_INDIRECT) |
ee890fe2 SS |
601 | return orig; |
602 | ||
603 | /* First handle a simple SYMBOL_REF or LABEL_REF */ | |
604 | if (GET_CODE (orig) == LABEL_REF | |
605 | || (GET_CODE (orig) == SYMBOL_REF | |
606 | )) | |
607 | { | |
608 | /* addr(foo) = &func+(foo-func) */ | |
609 | rtx pic_base; | |
610 | ||
611 | orig = machopic_indirect_data_reference (orig, reg); | |
612 | ||
9c808aad | 613 | if (GET_CODE (orig) == PLUS |
ee890fe2 SS |
614 | && GET_CODE (XEXP (orig, 0)) == REG) |
615 | { | |
616 | if (reg == 0) | |
617 | return force_reg (mode, orig); | |
618 | ||
619 | emit_move_insn (reg, orig); | |
620 | return reg; | |
9c808aad | 621 | } |
ee890fe2 | 622 | |
ab82a49f AP |
623 | /* if dynamic-no-pic then use 0 as the pic base */ |
624 | if (MACHO_DYNAMIC_NO_PIC_P) | |
625 | pic_base = CONST0_RTX (Pmode); | |
626 | else | |
6f94a68e | 627 | pic_base = gen_rtx_SYMBOL_REF (Pmode, machopic_function_base_name ()); |
ee890fe2 SS |
628 | |
629 | if (GET_CODE (orig) == MEM) | |
630 | { | |
631 | if (reg == 0) | |
632 | { | |
633 | if (reload_in_progress) | |
634 | abort (); | |
635 | else | |
636 | reg = gen_reg_rtx (Pmode); | |
637 | } | |
9c808aad | 638 | |
ee890fe2 | 639 | #ifdef HAVE_lo_sum |
ab82a49f AP |
640 | if (MACHO_DYNAMIC_NO_PIC_P |
641 | && (GET_CODE (XEXP (orig, 0)) == SYMBOL_REF | |
642 | || GET_CODE (XEXP (orig, 0)) == LABEL_REF)) | |
643 | { | |
644 | #if defined (TARGET_TOC) /* ppc */ | |
645 | rtx temp_reg = (no_new_pseudos) ? reg : gen_reg_rtx (Pmode); | |
646 | rtx asym = XEXP (orig, 0); | |
647 | rtx mem; | |
648 | ||
649 | emit_insn (gen_macho_high (temp_reg, asym)); | |
650 | mem = gen_rtx_MEM (GET_MODE (orig), | |
6f94a68e | 651 | gen_rtx_LO_SUM (Pmode, temp_reg, asym)); |
ab82a49f | 652 | RTX_UNCHANGING_P (mem) = 1; |
6f94a68e | 653 | emit_insn (gen_rtx_SET (VOIDmode, reg, mem)); |
ab82a49f AP |
654 | #else |
655 | /* Some other CPU -- WriteMe! but right now there are no other platform that can use dynamic-no-pic */ | |
656 | abort (); | |
657 | #endif | |
658 | pic_ref = reg; | |
659 | } | |
660 | else | |
9c808aad | 661 | if (GET_CODE (XEXP (orig, 0)) == SYMBOL_REF |
ee890fe2 SS |
662 | || GET_CODE (XEXP (orig, 0)) == LABEL_REF) |
663 | { | |
6f94a68e GK |
664 | rtx offset = gen_rtx_CONST (Pmode, |
665 | gen_rtx_MINUS (Pmode, | |
666 | XEXP (orig, 0), | |
667 | pic_base)); | |
ee890fe2 SS |
668 | #if defined (TARGET_TOC) /* i.e., PowerPC */ |
669 | /* Generating a new reg may expose opportunities for | |
670 | common subexpression elimination. */ | |
6f94a68e GK |
671 | rtx hi_sum_reg = no_new_pseudos ? reg : gen_reg_rtx (SImode); |
672 | rtx mem; | |
673 | rtx insn; | |
674 | rtx sum; | |
675 | ||
676 | sum = gen_rtx_HIGH (Pmode, offset); | |
677 | if (! MACHO_DYNAMIC_NO_PIC_P) | |
678 | sum = gen_rtx_PLUS (Pmode, pic_offset_table_rtx, sum); | |
ee890fe2 | 679 | |
6f94a68e GK |
680 | emit_insn (gen_rtx_SET (Pmode, hi_sum_reg, sum)); |
681 | ||
682 | mem = gen_rtx_MEM (GET_MODE (orig), | |
683 | gen_rtx_LO_SUM (Pmode, | |
684 | hi_sum_reg, offset)); | |
685 | RTX_UNCHANGING_P (mem) = 1; | |
686 | insn = emit_insn (gen_rtx_SET (VOIDmode, reg, mem)); | |
687 | REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_EQUAL, pic_ref, | |
688 | REG_NOTES (insn)); | |
689 | ||
690 | pic_ref = reg; | |
ee890fe2 | 691 | #else |
6f94a68e GK |
692 | emit_insn (gen_rtx_USE (VOIDmode, |
693 | gen_rtx_REG (Pmode, | |
694 | PIC_OFFSET_TABLE_REGNUM))); | |
695 | ||
696 | emit_insn (gen_rtx_SET (VOIDmode, reg, | |
697 | gen_rtx_HIGH (Pmode, | |
698 | gen_rtx_CONST (Pmode, | |
699 | 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); | |
ee890fe2 SS |
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 | |
6f94a68e GK |
717 | emit_insn (gen_rtx_USE (VOIDmode, |
718 | gen_rtx_REG (Pmode, | |
719 | PIC_OFFSET_TABLE_REGNUM))); | |
ee890fe2 SS |
720 | #endif |
721 | ||
6f94a68e GK |
722 | pic_ref = gen_rtx_PLUS (Pmode, |
723 | pic, | |
724 | gen_rtx_CONST (Pmode, | |
725 | gen_rtx_MINUS (Pmode, | |
726 | XEXP (orig, 0), | |
727 | pic_base))); | |
ee890fe2 | 728 | } |
9c808aad | 729 | |
ee890fe2 | 730 | #if !defined (TARGET_TOC) |
ee890fe2 | 731 | emit_move_insn (reg, pic_ref); |
6f94a68e | 732 | pic_ref = gen_rtx_MEM (GET_MODE (orig), reg); |
ee890fe2 | 733 | #endif |
b069de3b | 734 | RTX_UNCHANGING_P (pic_ref) = 1; |
ee890fe2 SS |
735 | } |
736 | else | |
737 | { | |
738 | ||
739 | #ifdef HAVE_lo_sum | |
9c808aad | 740 | if (GET_CODE (orig) == SYMBOL_REF |
ee890fe2 SS |
741 | || GET_CODE (orig) == LABEL_REF) |
742 | { | |
6f94a68e GK |
743 | rtx offset = gen_rtx_CONST (Pmode, |
744 | gen_rtx_MINUS (Pmode, | |
745 | orig, pic_base)); | |
ee890fe2 SS |
746 | #if defined (TARGET_TOC) /* i.e., PowerPC */ |
747 | rtx hi_sum_reg; | |
748 | ||
749 | if (reg == 0) | |
750 | { | |
751 | if (reload_in_progress) | |
752 | abort (); | |
753 | else | |
754 | reg = gen_reg_rtx (SImode); | |
755 | } | |
9c808aad | 756 | |
ee890fe2 SS |
757 | hi_sum_reg = reg; |
758 | ||
6f94a68e GK |
759 | emit_insn (gen_rtx_SET (Pmode, hi_sum_reg, |
760 | (MACHO_DYNAMIC_NO_PIC_P) | |
761 | ? gen_rtx_HIGH (Pmode, offset) | |
762 | : gen_rtx_PLUS (Pmode, | |
763 | pic_offset_table_rtx, | |
764 | gen_rtx_HIGH (Pmode, | |
765 | offset)))); | |
766 | emit_insn (gen_rtx_SET (VOIDmode, reg, | |
767 | gen_rtx_LO_SUM (Pmode, | |
768 | hi_sum_reg, offset))); | |
ee890fe2 | 769 | pic_ref = reg; |
b069de3b | 770 | RTX_UNCHANGING_P (pic_ref) = 1; |
ee890fe2 | 771 | #else |
6f94a68e GK |
772 | emit_insn (gen_rtx_SET (VOIDmode, reg, |
773 | gen_rtx_HIGH (Pmode, offset))); | |
774 | emit_insn (gen_rtx_SET (VOIDmode, reg, | |
775 | gen_rtx_LO_SUM (Pmode, reg, offset))); | |
776 | pic_ref = gen_rtx_PLUS (Pmode, | |
777 | pic_offset_table_rtx, reg); | |
b069de3b | 778 | RTX_UNCHANGING_P (pic_ref) = 1; |
ee890fe2 SS |
779 | #endif |
780 | } | |
781 | else | |
782 | #endif /* HAVE_lo_sum */ | |
783 | { | |
784 | if (GET_CODE (orig) == REG) | |
785 | { | |
786 | return orig; | |
787 | } | |
788 | else | |
789 | { | |
790 | rtx pic = pic_offset_table_rtx; | |
791 | if (GET_CODE (pic) != REG) | |
792 | { | |
793 | emit_move_insn (reg, pic); | |
794 | pic = reg; | |
795 | } | |
796 | #if 0 | |
6f94a68e GK |
797 | emit_insn (gen_rtx_USE (VOIDmode, |
798 | pic_offset_table_rtx)); | |
ee890fe2 | 799 | #endif |
6f94a68e GK |
800 | pic_ref = gen_rtx_PLUS (Pmode, |
801 | pic, | |
802 | gen_rtx_CONST (Pmode, | |
803 | gen_rtx_MINUS (Pmode, | |
804 | orig, pic_base))); | |
ee890fe2 SS |
805 | } |
806 | } | |
807 | } | |
808 | ||
ee890fe2 SS |
809 | if (GET_CODE (pic_ref) != REG) |
810 | { | |
811 | if (reg != 0) | |
812 | { | |
813 | emit_move_insn (reg, pic_ref); | |
814 | return reg; | |
815 | } | |
816 | else | |
817 | { | |
818 | return force_reg (mode, pic_ref); | |
819 | } | |
820 | } | |
821 | else | |
822 | { | |
823 | return pic_ref; | |
824 | } | |
825 | } | |
826 | ||
827 | else if (GET_CODE (orig) == SYMBOL_REF) | |
828 | return orig; | |
829 | ||
830 | else if (GET_CODE (orig) == PLUS | |
831 | && (GET_CODE (XEXP (orig, 0)) == MEM | |
832 | || GET_CODE (XEXP (orig, 0)) == SYMBOL_REF | |
833 | || GET_CODE (XEXP (orig, 0)) == LABEL_REF) | |
834 | && XEXP (orig, 0) != pic_offset_table_rtx | |
835 | && GET_CODE (XEXP (orig, 1)) != REG) | |
9c808aad | 836 | |
ee890fe2 SS |
837 | { |
838 | rtx base; | |
839 | int is_complex = (GET_CODE (XEXP (orig, 0)) == MEM); | |
840 | ||
841 | base = machopic_legitimize_pic_address (XEXP (orig, 0), Pmode, reg); | |
842 | orig = machopic_legitimize_pic_address (XEXP (orig, 1), | |
843 | Pmode, (base == reg ? 0 : reg)); | |
844 | if (GET_CODE (orig) == CONST_INT) | |
845 | { | |
ed8908e7 | 846 | pic_ref = plus_constant (base, INTVAL (orig)); |
ee890fe2 SS |
847 | is_complex = 1; |
848 | } | |
849 | else | |
6f94a68e | 850 | pic_ref = gen_rtx_PLUS (Pmode, base, orig); |
ee890fe2 SS |
851 | |
852 | if (RTX_UNCHANGING_P (base) && RTX_UNCHANGING_P (orig)) | |
853 | RTX_UNCHANGING_P (pic_ref) = 1; | |
854 | ||
855 | if (reg && is_complex) | |
856 | { | |
857 | emit_move_insn (reg, pic_ref); | |
858 | pic_ref = reg; | |
859 | } | |
860 | /* Likewise, should we set special REG_NOTEs here? */ | |
861 | } | |
862 | ||
863 | else if (GET_CODE (orig) == CONST) | |
864 | { | |
865 | return machopic_legitimize_pic_address (XEXP (orig, 0), Pmode, reg); | |
866 | } | |
867 | ||
868 | else if (GET_CODE (orig) == MEM | |
869 | && GET_CODE (XEXP (orig, 0)) == SYMBOL_REF) | |
870 | { | |
871 | rtx addr = machopic_legitimize_pic_address (XEXP (orig, 0), Pmode, reg); | |
872 | ||
6f94a68e | 873 | addr = gen_rtx_MEM (GET_MODE (orig), addr); |
ee890fe2 SS |
874 | RTX_UNCHANGING_P (addr) = RTX_UNCHANGING_P (orig); |
875 | emit_move_insn (reg, addr); | |
876 | pic_ref = reg; | |
877 | } | |
878 | ||
879 | return pic_ref; | |
880 | } | |
881 | ||
882 | ||
883 | void | |
9c808aad | 884 | machopic_finish (FILE *asm_out_file) |
ee890fe2 SS |
885 | { |
886 | tree temp; | |
887 | ||
888 | for (temp = machopic_stubs; | |
889 | temp != NULL_TREE; | |
890 | temp = TREE_CHAIN (temp)) | |
891 | { | |
91dc3130 KG |
892 | const char *sym_name = IDENTIFIER_POINTER (TREE_VALUE (temp)); |
893 | const char *stub_name = IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
ee890fe2 SS |
894 | char *sym; |
895 | char *stub; | |
ee890fe2 SS |
896 | |
897 | if (! TREE_USED (temp)) | |
898 | continue; | |
899 | ||
772c5265 | 900 | sym_name = darwin_strip_name_encoding (sym_name); |
ee890fe2 SS |
901 | |
902 | sym = alloca (strlen (sym_name) + 2); | |
903 | if (sym_name[0] == '*' || sym_name[0] == '&') | |
904 | strcpy (sym, sym_name + 1); | |
905 | else if (sym_name[0] == '-' || sym_name[0] == '+') | |
9c808aad | 906 | strcpy (sym, sym_name); |
ee890fe2 SS |
907 | else |
908 | sym[0] = '_', strcpy (sym + 1, sym_name); | |
909 | ||
910 | stub = alloca (strlen (stub_name) + 2); | |
911 | if (stub_name[0] == '*' || stub_name[0] == '&') | |
912 | strcpy (stub, stub_name + 1); | |
913 | else | |
914 | stub[0] = '_', strcpy (stub + 1, stub_name); | |
915 | ||
916 | machopic_output_stub (asm_out_file, sym, stub); | |
917 | } | |
918 | ||
919 | for (temp = machopic_non_lazy_pointers; | |
9c808aad | 920 | temp != NULL_TREE; |
ee890fe2 SS |
921 | temp = TREE_CHAIN (temp)) |
922 | { | |
7ae8cf75 KG |
923 | const char *const sym_name = IDENTIFIER_POINTER (TREE_VALUE (temp)); |
924 | const char *const lazy_name = IDENTIFIER_POINTER (TREE_PURPOSE (temp)); | |
ee890fe2 SS |
925 | |
926 | if (! TREE_USED (temp)) | |
927 | continue; | |
928 | ||
3f64e543 | 929 | if (machopic_ident_defined_p (TREE_VALUE (temp))) |
ee890fe2 SS |
930 | { |
931 | data_section (); | |
c8af3574 | 932 | assemble_align (GET_MODE_ALIGNMENT (Pmode)); |
ee890fe2 | 933 | assemble_label (lazy_name); |
6f94a68e | 934 | assemble_integer (gen_rtx_SYMBOL_REF (Pmode, sym_name), |
c8af3574 RH |
935 | GET_MODE_SIZE (Pmode), |
936 | GET_MODE_ALIGNMENT (Pmode), 1); | |
ee890fe2 SS |
937 | } |
938 | else | |
939 | { | |
940 | machopic_nl_symbol_ptr_section (); | |
9c808aad | 941 | assemble_name (asm_out_file, lazy_name); |
ee890fe2 SS |
942 | fprintf (asm_out_file, ":\n"); |
943 | ||
944 | fprintf (asm_out_file, "\t.indirect_symbol "); | |
9c808aad | 945 | assemble_name (asm_out_file, sym_name); |
ee890fe2 SS |
946 | fprintf (asm_out_file, "\n"); |
947 | ||
c8af3574 RH |
948 | assemble_integer (const0_rtx, GET_MODE_SIZE (Pmode), |
949 | GET_MODE_ALIGNMENT (Pmode), 1); | |
ee890fe2 SS |
950 | } |
951 | } | |
952 | } | |
953 | ||
9c808aad AJ |
954 | int |
955 | machopic_operand_p (rtx op) | |
ee890fe2 SS |
956 | { |
957 | if (MACHOPIC_JUST_INDIRECT) | |
958 | { | |
959 | while (GET_CODE (op) == CONST) | |
960 | op = XEXP (op, 0); | |
961 | ||
962 | if (GET_CODE (op) == SYMBOL_REF) | |
963 | return machopic_name_defined_p (XSTR (op, 0)); | |
964 | else | |
965 | return 0; | |
966 | } | |
967 | ||
968 | while (GET_CODE (op) == CONST) | |
969 | op = XEXP (op, 0); | |
970 | ||
971 | if (GET_CODE (op) == MINUS | |
972 | && GET_CODE (XEXP (op, 0)) == SYMBOL_REF | |
973 | && GET_CODE (XEXP (op, 1)) == SYMBOL_REF | |
974 | && machopic_name_defined_p (XSTR (XEXP (op, 0), 0)) | |
975 | && machopic_name_defined_p (XSTR (XEXP (op, 1), 0))) | |
976 | return 1; | |
977 | ||
ee890fe2 SS |
978 | return 0; |
979 | } | |
df56a27f SS |
980 | |
981 | /* This function records whether a given name corresponds to a defined | |
982 | or undefined function or variable, for machopic_classify_ident to | |
983 | use later. */ | |
984 | ||
985 | void | |
9c808aad | 986 | darwin_encode_section_info (tree decl, rtx rtl, int first ATTRIBUTE_UNUSED) |
df56a27f SS |
987 | { |
988 | char code = '\0'; | |
989 | int defined = 0; | |
353e51f8 | 990 | rtx sym_ref; |
c0cbc013 DJ |
991 | const char *orig_str; |
992 | char *new_str; | |
353e51f8 | 993 | size_t len, new_len; |
df56a27f | 994 | |
e1a4211d SS |
995 | /* Do the standard encoding things first. */ |
996 | default_encode_section_info (decl, rtl, first); | |
997 | ||
998 | /* With the introduction of symbol_ref flags, some of the following | |
999 | code has become redundant and should be removed at some point. */ | |
1000 | ||
df56a27f SS |
1001 | if ((TREE_CODE (decl) == FUNCTION_DECL |
1002 | || TREE_CODE (decl) == VAR_DECL) | |
70bdc2ff | 1003 | && !DECL_EXTERNAL (decl) |
4746cf84 | 1004 | && (!TREE_PUBLIC (decl) || (!DECL_ONE_ONLY (decl) && !DECL_WEAK (decl))) |
df56a27f SS |
1005 | && ((TREE_STATIC (decl) |
1006 | && (!DECL_COMMON (decl) || !TREE_PUBLIC (decl))) | |
bfbdca0b | 1007 | || (!DECL_COMMON (decl) && DECL_INITIAL (decl) |
abe72dd8 | 1008 | && DECL_INITIAL (decl) != error_mark_node))) |
df56a27f SS |
1009 | defined = 1; |
1010 | ||
1011 | if (TREE_CODE (decl) == FUNCTION_DECL) | |
1012 | code = (defined ? 'T' : 't'); | |
1013 | else if (TREE_CODE (decl) == VAR_DECL) | |
1014 | code = (defined ? 'D' : 'd'); | |
1015 | ||
353e51f8 SS |
1016 | if (code == '\0') |
1017 | return; | |
df56a27f | 1018 | |
c6a2438a | 1019 | sym_ref = XEXP (rtl, 0); |
353e51f8 SS |
1020 | orig_str = XSTR (sym_ref, 0); |
1021 | len = strlen (orig_str) + 1; | |
df56a27f | 1022 | |
353e51f8 SS |
1023 | if (orig_str[0] == '!') |
1024 | { | |
1025 | /* Already encoded; see if we need to change it. */ | |
1026 | if (code == orig_str[1]) | |
1027 | return; | |
1028 | /* Yes, tweak a copy of the name and put it in a new string. */ | |
1029 | new_str = alloca (len); | |
1030 | memcpy (new_str, orig_str, len); | |
1031 | new_str[1] = code; | |
1032 | XSTR (sym_ref, 0) = ggc_alloc_string (new_str, len); | |
353e51f8 SS |
1033 | } |
1034 | else | |
1035 | { | |
1036 | /* Add the encoding. */ | |
1037 | new_len = len + 4; | |
1038 | new_str = alloca (new_len); | |
1039 | new_str[0] = '!'; | |
1040 | new_str[1] = code; | |
1041 | new_str[2] = '_'; | |
1042 | new_str[3] = '_'; | |
1043 | memcpy (new_str + 4, orig_str, len); | |
1044 | XSTR (sym_ref, 0) = ggc_alloc_string (new_str, new_len); | |
df56a27f | 1045 | } |
4e08ba6c SS |
1046 | /* The non-lazy pointer list may have captured references to the |
1047 | old encoded name, change them. */ | |
b7fb9feb TC |
1048 | if (TREE_CODE (decl) == VAR_DECL) |
1049 | update_non_lazy_ptrs (XSTR (sym_ref, 0)); | |
1050 | else | |
1051 | update_stubs (XSTR (sym_ref, 0)); | |
df56a27f SS |
1052 | } |
1053 | ||
772c5265 RH |
1054 | /* Undo the effects of the above. */ |
1055 | ||
1056 | const char * | |
9c808aad | 1057 | darwin_strip_name_encoding (const char *str) |
772c5265 RH |
1058 | { |
1059 | return str[0] == '!' ? str + 4 : str; | |
1060 | } | |
1061 | ||
df56a27f SS |
1062 | /* Scan the list of non-lazy pointers and update any recorded names whose |
1063 | stripped name matches the argument. */ | |
1064 | ||
1065 | static void | |
9c808aad | 1066 | update_non_lazy_ptrs (const char *name) |
df56a27f | 1067 | { |
91dc3130 | 1068 | const char *name1, *name2; |
df56a27f SS |
1069 | tree temp; |
1070 | ||
772c5265 | 1071 | name1 = darwin_strip_name_encoding (name); |
df56a27f SS |
1072 | |
1073 | for (temp = machopic_non_lazy_pointers; | |
9c808aad | 1074 | temp != NULL_TREE; |
df56a27f SS |
1075 | temp = TREE_CHAIN (temp)) |
1076 | { | |
7ae8cf75 | 1077 | const char *sym_name = IDENTIFIER_POINTER (TREE_VALUE (temp)); |
df56a27f SS |
1078 | |
1079 | if (*sym_name == '!') | |
1080 | { | |
772c5265 | 1081 | name2 = darwin_strip_name_encoding (sym_name); |
df56a27f SS |
1082 | if (strcmp (name1, name2) == 0) |
1083 | { | |
d24652ee | 1084 | /* FIXME: This breaks the identifier hash table. */ |
9c808aad | 1085 | IDENTIFIER_NODE_CHECK (TREE_VALUE (temp))->identifier.id.str |
d24652ee | 1086 | = (unsigned char *) name; |
df56a27f SS |
1087 | break; |
1088 | } | |
1089 | } | |
1090 | } | |
1091 | } | |
4e08ba6c | 1092 | |
4e08ba6c SS |
1093 | /* Scan the list of stubs and update any recorded names whose |
1094 | stripped name matches the argument. */ | |
1095 | ||
1096 | static void | |
9c808aad | 1097 | update_stubs (const char *name) |
4e08ba6c | 1098 | { |
91dc3130 | 1099 | const char *name1, *name2; |
4e08ba6c SS |
1100 | tree temp; |
1101 | ||
772c5265 | 1102 | name1 = darwin_strip_name_encoding (name); |
4e08ba6c SS |
1103 | |
1104 | for (temp = machopic_stubs; | |
9c808aad | 1105 | temp != NULL_TREE; |
4e08ba6c SS |
1106 | temp = TREE_CHAIN (temp)) |
1107 | { | |
7ae8cf75 | 1108 | const char *sym_name = IDENTIFIER_POINTER (TREE_VALUE (temp)); |
4e08ba6c SS |
1109 | |
1110 | if (*sym_name == '!') | |
1111 | { | |
772c5265 | 1112 | name2 = darwin_strip_name_encoding (sym_name); |
4e08ba6c SS |
1113 | if (strcmp (name1, name2) == 0) |
1114 | { | |
d24652ee | 1115 | /* FIXME: This breaks the identifier hash table. */ |
9c808aad | 1116 | IDENTIFIER_NODE_CHECK (TREE_VALUE (temp))->identifier.id.str |
d24652ee | 1117 | = (unsigned char *) name; |
4e08ba6c SS |
1118 | break; |
1119 | } | |
1120 | } | |
1121 | } | |
1122 | } | |
2cc07db4 | 1123 | |
4746cf84 MA |
1124 | void |
1125 | darwin_make_decl_one_only (tree decl) | |
1126 | { | |
1127 | static const char *text_section = "__TEXT,__textcoal_nt,coalesced,no_toc"; | |
1128 | static const char *data_section = "__DATA,__datacoal_nt,coalesced,no_toc"; | |
1129 | ||
1130 | const char *sec = TREE_CODE (decl) == FUNCTION_DECL | |
1131 | ? text_section | |
1132 | : data_section; | |
1133 | TREE_PUBLIC (decl) = 1; | |
1134 | DECL_ONE_ONLY (decl) = 1; | |
1135 | DECL_SECTION_NAME (decl) = build_string (strlen (sec), sec); | |
1136 | } | |
1137 | ||
ae46c4e0 | 1138 | void |
9c808aad AJ |
1139 | machopic_select_section (tree exp, int reloc, |
1140 | unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED) | |
ae46c4e0 | 1141 | { |
3d7964d5 | 1142 | void (*base_function)(void); |
9c808aad | 1143 | |
3d7964d5 GK |
1144 | if (decl_readonly_section_1 (exp, reloc, MACHOPIC_INDIRECT)) |
1145 | base_function = readonly_data_section; | |
1146 | else if (TREE_READONLY (exp) || TREE_CONSTANT (exp)) | |
1147 | base_function = const_data_section; | |
1148 | else | |
1149 | base_function = data_section; | |
9c808aad | 1150 | |
3d7964d5 | 1151 | if (TREE_CODE (exp) == STRING_CST |
9c808aad | 1152 | && ((size_t) TREE_STRING_LENGTH (exp) |
3521b33c | 1153 | == strlen (TREE_STRING_POINTER (exp)) + 1)) |
3d7964d5 GK |
1154 | cstring_section (); |
1155 | else if ((TREE_CODE (exp) == INTEGER_CST || TREE_CODE (exp) == REAL_CST) | |
1156 | && flag_merge_constants) | |
ae46c4e0 RH |
1157 | { |
1158 | tree size = TYPE_SIZE (TREE_TYPE (exp)); | |
1159 | ||
1160 | if (TREE_CODE (size) == INTEGER_CST && | |
1161 | TREE_INT_CST_LOW (size) == 4 && | |
1162 | TREE_INT_CST_HIGH (size) == 0) | |
1163 | literal4_section (); | |
1164 | else if (TREE_CODE (size) == INTEGER_CST && | |
1165 | TREE_INT_CST_LOW (size) == 8 && | |
1166 | TREE_INT_CST_HIGH (size) == 0) | |
1167 | literal8_section (); | |
1168 | else | |
3d7964d5 | 1169 | base_function (); |
ae46c4e0 RH |
1170 | } |
1171 | else if (TREE_CODE (exp) == CONSTRUCTOR | |
1172 | && TREE_TYPE (exp) | |
1173 | && TREE_CODE (TREE_TYPE (exp)) == RECORD_TYPE | |
1174 | && TYPE_NAME (TREE_TYPE (exp))) | |
1175 | { | |
1176 | tree name = TYPE_NAME (TREE_TYPE (exp)); | |
1177 | if (TREE_CODE (name) == TYPE_DECL) | |
1178 | name = DECL_NAME (name); | |
1179 | if (!strcmp (IDENTIFIER_POINTER (name), "NSConstantString")) | |
1180 | objc_constant_string_object_section (); | |
1181 | else if (!strcmp (IDENTIFIER_POINTER (name), "NXConstantString")) | |
1182 | objc_string_object_section (); | |
ae46c4e0 | 1183 | else |
3d7964d5 | 1184 | base_function (); |
ae46c4e0 RH |
1185 | } |
1186 | else if (TREE_CODE (exp) == VAR_DECL && | |
1187 | DECL_NAME (exp) && | |
1188 | TREE_CODE (DECL_NAME (exp)) == IDENTIFIER_NODE && | |
1189 | IDENTIFIER_POINTER (DECL_NAME (exp)) && | |
1190 | !strncmp (IDENTIFIER_POINTER (DECL_NAME (exp)), "_OBJC_", 6)) | |
1191 | { | |
1192 | const char *name = IDENTIFIER_POINTER (DECL_NAME (exp)); | |
1193 | ||
1194 | if (!strncmp (name, "_OBJC_CLASS_METHODS_", 20)) | |
1195 | objc_cls_meth_section (); | |
1196 | else if (!strncmp (name, "_OBJC_INSTANCE_METHODS_", 23)) | |
1197 | objc_inst_meth_section (); | |
1198 | else if (!strncmp (name, "_OBJC_CATEGORY_CLASS_METHODS_", 20)) | |
1199 | objc_cat_cls_meth_section (); | |
1200 | else if (!strncmp (name, "_OBJC_CATEGORY_INSTANCE_METHODS_", 23)) | |
1201 | objc_cat_inst_meth_section (); | |
1202 | else if (!strncmp (name, "_OBJC_CLASS_VARIABLES_", 22)) | |
1203 | objc_class_vars_section (); | |
1204 | else if (!strncmp (name, "_OBJC_INSTANCE_VARIABLES_", 25)) | |
1205 | objc_instance_vars_section (); | |
1206 | else if (!strncmp (name, "_OBJC_CLASS_PROTOCOLS_", 22)) | |
1207 | objc_cat_cls_meth_section (); | |
1208 | else if (!strncmp (name, "_OBJC_CLASS_NAME_", 17)) | |
1209 | objc_class_names_section (); | |
1210 | else if (!strncmp (name, "_OBJC_METH_VAR_NAME_", 20)) | |
1211 | objc_meth_var_names_section (); | |
1212 | else if (!strncmp (name, "_OBJC_METH_VAR_TYPE_", 20)) | |
1213 | objc_meth_var_types_section (); | |
1214 | else if (!strncmp (name, "_OBJC_CLASS_REFERENCES", 22)) | |
1215 | objc_cls_refs_section (); | |
1216 | else if (!strncmp (name, "_OBJC_CLASS_", 12)) | |
1217 | objc_class_section (); | |
1218 | else if (!strncmp (name, "_OBJC_METACLASS_", 16)) | |
1219 | objc_meta_class_section (); | |
1220 | else if (!strncmp (name, "_OBJC_CATEGORY_", 15)) | |
1221 | objc_category_section (); | |
1222 | else if (!strncmp (name, "_OBJC_SELECTOR_REFERENCES", 25)) | |
1223 | objc_selector_refs_section (); | |
1224 | else if (!strncmp (name, "_OBJC_SELECTOR_FIXUP", 20)) | |
1225 | objc_selector_fixup_section (); | |
1226 | else if (!strncmp (name, "_OBJC_SYMBOLS", 13)) | |
1227 | objc_symbols_section (); | |
1228 | else if (!strncmp (name, "_OBJC_MODULES", 13)) | |
1229 | objc_module_info_section (); | |
264fa2db ZL |
1230 | else if (!strncmp (name, "_OBJC_IMAGE_INFO", 16)) |
1231 | objc_image_info_section (); | |
ae46c4e0 RH |
1232 | else if (!strncmp (name, "_OBJC_PROTOCOL_INSTANCE_METHODS_", 32)) |
1233 | objc_cat_inst_meth_section (); | |
1234 | else if (!strncmp (name, "_OBJC_PROTOCOL_CLASS_METHODS_", 29)) | |
1235 | objc_cat_cls_meth_section (); | |
1236 | else if (!strncmp (name, "_OBJC_PROTOCOL_REFS_", 20)) | |
1237 | objc_cat_cls_meth_section (); | |
1238 | else if (!strncmp (name, "_OBJC_PROTOCOL_", 15)) | |
1239 | objc_protocol_section (); | |
ae46c4e0 | 1240 | else |
3d7964d5 | 1241 | base_function (); |
ae46c4e0 RH |
1242 | } |
1243 | else | |
3d7964d5 | 1244 | base_function (); |
ae46c4e0 RH |
1245 | } |
1246 | ||
b64a1b53 | 1247 | /* This can be called with address expressions as "rtx". |
991b6592 | 1248 | They must go in "const". */ |
b64a1b53 RH |
1249 | |
1250 | void | |
9c808aad AJ |
1251 | machopic_select_rtx_section (enum machine_mode mode, rtx x, |
1252 | unsigned HOST_WIDE_INT align ATTRIBUTE_UNUSED) | |
b64a1b53 RH |
1253 | { |
1254 | if (GET_MODE_SIZE (mode) == 8) | |
1255 | literal8_section (); | |
1256 | else if (GET_MODE_SIZE (mode) == 4 | |
1257 | && (GET_CODE (x) == CONST_INT | |
1258 | || GET_CODE (x) == CONST_DOUBLE)) | |
1259 | literal4_section (); | |
86b0a4f3 | 1260 | else if (MACHOPIC_INDIRECT |
2e53734e GK |
1261 | && (GET_CODE (x) == SYMBOL_REF |
1262 | || GET_CODE (x) == CONST | |
1263 | || GET_CODE (x) == LABEL_REF)) | |
1264 | const_data_section (); | |
b64a1b53 RH |
1265 | else |
1266 | const_section (); | |
1267 | } | |
1268 | ||
2cc07db4 | 1269 | void |
9c808aad | 1270 | machopic_asm_out_constructor (rtx symbol, int priority ATTRIBUTE_UNUSED) |
2cc07db4 | 1271 | { |
ab82a49f | 1272 | if (MACHOPIC_INDIRECT) |
2cc07db4 RH |
1273 | mod_init_section (); |
1274 | else | |
1275 | constructor_section (); | |
c8af3574 RH |
1276 | assemble_align (POINTER_SIZE); |
1277 | assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1); | |
2cc07db4 | 1278 | |
ab82a49f | 1279 | if (! MACHOPIC_INDIRECT) |
2cc07db4 RH |
1280 | fprintf (asm_out_file, ".reference .constructors_used\n"); |
1281 | } | |
1282 | ||
1283 | void | |
9c808aad | 1284 | machopic_asm_out_destructor (rtx symbol, int priority ATTRIBUTE_UNUSED) |
2cc07db4 | 1285 | { |
ab82a49f | 1286 | if (MACHOPIC_INDIRECT) |
2cc07db4 RH |
1287 | mod_term_section (); |
1288 | else | |
1289 | destructor_section (); | |
c8af3574 RH |
1290 | assemble_align (POINTER_SIZE); |
1291 | assemble_integer (symbol, POINTER_SIZE / BITS_PER_UNIT, POINTER_SIZE, 1); | |
2cc07db4 | 1292 | |
ab82a49f | 1293 | if (! MACHOPIC_INDIRECT) |
2cc07db4 RH |
1294 | fprintf (asm_out_file, ".reference .destructors_used\n"); |
1295 | } | |
e2500fed | 1296 | |
5eb99654 | 1297 | void |
9c808aad | 1298 | darwin_globalize_label (FILE *stream, const char *name) |
5eb99654 KG |
1299 | { |
1300 | if (!!strncmp (name, "_OBJC_", 6)) | |
1301 | default_globalize_label (stream, name); | |
1302 | } | |
1303 | ||
4746cf84 MA |
1304 | void |
1305 | darwin_asm_named_section (const char *name, unsigned int flags ATTRIBUTE_UNUSED) | |
1306 | { | |
750054a2 CT |
1307 | if (flag_reorder_blocks_and_partition) |
1308 | fprintf (asm_out_file, SECTION_FORMAT_STRING, name); | |
1309 | else | |
1310 | fprintf (asm_out_file, ".section %s\n", name); | |
4746cf84 MA |
1311 | } |
1312 | ||
1313 | unsigned int | |
1314 | darwin_section_type_flags (tree decl, const char *name, int reloc) | |
1315 | { | |
1316 | unsigned int flags = default_section_type_flags (decl, name, reloc); | |
1317 | ||
1318 | /* Weak or linkonce variables live in a writable section. */ | |
1319 | if (decl != 0 && TREE_CODE (decl) != FUNCTION_DECL | |
1320 | && (DECL_WEAK (decl) || DECL_ONE_ONLY (decl))) | |
1321 | flags |= SECTION_WRITE; | |
1322 | ||
1323 | return flags; | |
1324 | } | |
1325 | ||
1326 | void | |
1327 | darwin_unique_section (tree decl, int reloc ATTRIBUTE_UNUSED) | |
1328 | { | |
1329 | /* Darwin does not use unique sections. However, the target's | |
1330 | unique_section hook is called for linkonce symbols. We need | |
1331 | to set an appropriate section for such symbols. */ | |
1332 | if (DECL_ONE_ONLY (decl) && !DECL_SECTION_NAME (decl)) | |
1333 | darwin_make_decl_one_only (decl); | |
1334 | } | |
1335 | ||
1336 | /* Emit a label for an FDE, making it global and/or weak if appropriate. | |
eeab4d81 MS |
1337 | The third parameter is nonzero if this is for exception handling. |
1338 | The fourth parameter is nonzero if this is just a placeholder for an | |
4746cf84 | 1339 | FDE that we are omitting. */ |
eeab4d81 | 1340 | |
4746cf84 | 1341 | void |
eeab4d81 | 1342 | darwin_emit_unwind_label (FILE *file, tree decl, int for_eh, int empty) |
4746cf84 MA |
1343 | { |
1344 | tree id = DECL_ASSEMBLER_NAME (decl) | |
1345 | ? DECL_ASSEMBLER_NAME (decl) | |
1346 | : DECL_NAME (decl); | |
1347 | ||
1348 | const char *prefix = "_"; | |
1349 | const int prefix_len = 1; | |
1350 | ||
1351 | const char *base = IDENTIFIER_POINTER (id); | |
1352 | unsigned int base_len = IDENTIFIER_LENGTH (id); | |
1353 | ||
1354 | const char *suffix = ".eh"; | |
4746cf84 MA |
1355 | |
1356 | int need_quotes = name_needs_quotes (base); | |
1357 | int quotes_len = need_quotes ? 2 : 0; | |
eeab4d81 MS |
1358 | char *lab; |
1359 | ||
1360 | if (! for_eh) | |
1361 | suffix = ".eh1"; | |
4746cf84 | 1362 | |
eeab4d81 | 1363 | lab = xmalloc (prefix_len + base_len + strlen (suffix) + quotes_len + 1); |
4746cf84 MA |
1364 | lab[0] = '\0'; |
1365 | ||
1366 | if (need_quotes) | |
1367 | strcat(lab, "\""); | |
1368 | strcat(lab, prefix); | |
1369 | strcat(lab, base); | |
1370 | strcat(lab, suffix); | |
1371 | if (need_quotes) | |
1372 | strcat(lab, "\""); | |
1373 | ||
1374 | if (TREE_PUBLIC (decl)) | |
1375 | fprintf (file, "%s %s\n", | |
1376 | (DECL_VISIBILITY (decl) != VISIBILITY_HIDDEN | |
1377 | ? ".globl" | |
1378 | : ".private_extern"), | |
1379 | lab); | |
1380 | ||
1381 | if (DECL_ONE_ONLY (decl) && TREE_PUBLIC (decl)) | |
1382 | fprintf (file, ".weak_definition %s\n", lab); | |
1383 | ||
1384 | if (empty) | |
1385 | fprintf (file, "%s = 0\n", lab); | |
1386 | else | |
1387 | fprintf (file, "%s:\n", lab); | |
1388 | ||
1389 | free (lab); | |
1390 | } | |
1391 | ||
1392 | /* Generate a PC-relative reference to a Mach-O non-lazy-symbol. */ | |
eeab4d81 | 1393 | |
4746cf84 MA |
1394 | void |
1395 | darwin_non_lazy_pcrel (FILE *file, rtx addr) | |
1396 | { | |
1397 | const char *str; | |
1398 | const char *nlp_name; | |
1399 | ||
1400 | if (GET_CODE (addr) != SYMBOL_REF) | |
1401 | abort (); | |
1402 | ||
1403 | str = darwin_strip_name_encoding (XSTR (addr, 0)); | |
1404 | nlp_name = machopic_non_lazy_ptr_name (str); | |
1405 | fputs ("\t.long\t", file); | |
1406 | ASM_OUTPUT_LABELREF (file, nlp_name); | |
1407 | fputs ("-.", file); | |
1408 | } | |
1409 | ||
6ce4806b MA |
1410 | /* Emit an assembler directive to set visibility for a symbol. The |
1411 | only supported visibilities are VISIBILITY_DEFAULT and | |
1412 | VISIBILITY_HIDDEN; the latter corresponds to Darwin's "private | |
1413 | extern". There is no MACH-O equivalent of ELF's | |
1414 | VISIBILITY_INTERNAL or VISIBILITY_PROTECTED. */ | |
1415 | ||
1416 | void | |
1417 | darwin_assemble_visibility (tree decl, int vis) | |
1418 | { | |
1419 | if (vis == VISIBILITY_DEFAULT) | |
1420 | ; | |
1421 | else if (vis == VISIBILITY_HIDDEN) | |
1422 | { | |
1423 | fputs ("\t.private_extern ", asm_out_file); | |
1424 | assemble_name (asm_out_file, | |
1425 | (IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (decl)))); | |
1426 | fputs ("\n", asm_out_file); | |
1427 | } | |
1428 | else | |
1429 | warning ("internal and protected visibility attributes not supported" | |
1430 | "in this configuration; ignored"); | |
1431 | } | |
1432 | ||
7606e68f SS |
1433 | /* Output a difference of two labels that will be an assembly time |
1434 | constant if the two labels are local. (.long lab1-lab2 will be | |
1435 | very different if lab1 is at the boundary between two sections; it | |
1436 | will be relocated according to the second section, not the first, | |
1437 | so one ends up with a difference between labels in different | |
1438 | sections, which is bad in the dwarf2 eh context for instance.) */ | |
1439 | ||
1440 | static int darwin_dwarf_label_counter; | |
1441 | ||
1442 | void | |
9c808aad AJ |
1443 | darwin_asm_output_dwarf_delta (FILE *file, int size ATTRIBUTE_UNUSED, |
1444 | const char *lab1, const char *lab2) | |
7606e68f | 1445 | { |
4746cf84 MA |
1446 | int islocaldiff = (lab1[0] == '*' && lab1[1] == 'L' |
1447 | && lab2[0] == '*' && lab2[1] == 'L'); | |
7606e68f SS |
1448 | |
1449 | if (islocaldiff) | |
1450 | fprintf (file, "\t.set L$set$%d,", darwin_dwarf_label_counter); | |
1451 | else | |
1452 | fprintf (file, "\t%s\t", ".long"); | |
1453 | assemble_name (file, lab1); | |
1454 | fprintf (file, "-"); | |
1455 | assemble_name (file, lab2); | |
1456 | if (islocaldiff) | |
1457 | fprintf (file, "\n\t.long L$set$%d", darwin_dwarf_label_counter++); | |
1458 | } | |
1459 | ||
a5fe455b | 1460 | void |
9c808aad | 1461 | darwin_file_end (void) |
a5fe455b ZW |
1462 | { |
1463 | machopic_finish (asm_out_file); | |
1464 | if (strcmp (lang_hooks.name, "GNU C++") == 0) | |
1465 | { | |
1466 | constructor_section (); | |
1467 | destructor_section (); | |
1468 | ASM_OUTPUT_ALIGN (asm_out_file, 1); | |
1469 | } | |
1470 | } | |
1471 | ||
e2500fed | 1472 | #include "gt-darwin.h" |