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eff01bb6 | 1 | /* Definitions of various defaults for tm.h macros. |
ad616de1 | 2 | Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, |
677f3fa8 | 3 | 2005, 2007, 2008, 2009, 2010, 2011 |
d8ea8f28 | 4 | Free Software Foundation, Inc. |
b33c316c | 5 | Contributed by Ron Guilmette (rfg@monkeys.com) |
c53a8ab6 | 6 | |
1322177d | 7 | This file is part of GCC. |
c53a8ab6 | 8 | |
1322177d LB |
9 | GCC is free software; you can redistribute it and/or modify it under |
10 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 11 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 12 | version. |
c53a8ab6 | 13 | |
1322177d LB |
14 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
15 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 | for more details. | |
c53a8ab6 | 18 | |
748086b7 JJ |
19 | Under Section 7 of GPL version 3, you are granted additional |
20 | permissions described in the GCC Runtime Library Exception, version | |
21 | 3.1, as published by the Free Software Foundation. | |
22 | ||
23 | You should have received a copy of the GNU General Public License and | |
24 | a copy of the GCC Runtime Library Exception along with this program; | |
25 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
9dcd6f09 | 26 | <http://www.gnu.org/licenses/>. */ |
c53a8ab6 | 27 | |
d8ea8f28 ZW |
28 | #ifndef GCC_DEFAULTS_H |
29 | #define GCC_DEFAULTS_H | |
30 | ||
ded49a7f RH |
31 | /* How to start an assembler comment. */ |
32 | #ifndef ASM_COMMENT_START | |
33 | #define ASM_COMMENT_START ";#" | |
34 | #endif | |
35 | ||
4977bab6 ZW |
36 | /* Store in OUTPUT a string (made with alloca) containing an |
37 | assembler-name for a local static variable or function named NAME. | |
7b73db04 CH |
38 | LABELNO is an integer which is different for each call. */ |
39 | ||
4977bab6 ZW |
40 | #ifndef ASM_PN_FORMAT |
41 | # ifndef NO_DOT_IN_LABEL | |
42 | # define ASM_PN_FORMAT "%s.%lu" | |
43 | # else | |
44 | # ifndef NO_DOLLAR_IN_LABEL | |
45 | # define ASM_PN_FORMAT "%s$%lu" | |
46 | # else | |
47 | # define ASM_PN_FORMAT "__%s_%lu" | |
48 | # endif | |
49 | # endif | |
50 | #endif /* ! ASM_PN_FORMAT */ | |
51 | ||
7b73db04 | 52 | #ifndef ASM_FORMAT_PRIVATE_NAME |
4977bab6 ZW |
53 | # define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \ |
54 | do { const char *const name_ = (NAME); \ | |
28dab132 BI |
55 | char *const output_ = (OUTPUT) = \ |
56 | (char *) alloca (strlen (name_) + 32); \ | |
4977bab6 | 57 | sprintf (output_, ASM_PN_FORMAT, name_, (unsigned long)(LABELNO)); \ |
7b73db04 CH |
58 | } while (0) |
59 | #endif | |
60 | ||
e0a21ab9 | 61 | /* Choose a reasonable default for ASM_OUTPUT_ASCII. */ |
c53a8ab6 RS |
62 | |
63 | #ifndef ASM_OUTPUT_ASCII | |
64 | #define ASM_OUTPUT_ASCII(MYFILE, MYSTRING, MYLENGTH) \ | |
65 | do { \ | |
66 | FILE *_hide_asm_out_file = (MYFILE); \ | |
47ee9bcb | 67 | const unsigned char *_hide_p = (const unsigned char *) (MYSTRING); \ |
c53a8ab6 RS |
68 | int _hide_thissize = (MYLENGTH); \ |
69 | { \ | |
70 | FILE *asm_out_file = _hide_asm_out_file; \ | |
47ee9bcb | 71 | const unsigned char *p = _hide_p; \ |
c53a8ab6 RS |
72 | int thissize = _hide_thissize; \ |
73 | int i; \ | |
74 | fprintf (asm_out_file, "\t.ascii \""); \ | |
75 | \ | |
76 | for (i = 0; i < thissize; i++) \ | |
77 | { \ | |
b3694847 | 78 | int c = p[i]; \ |
c53a8ab6 RS |
79 | if (c == '\"' || c == '\\') \ |
80 | putc ('\\', asm_out_file); \ | |
5f6d3823 | 81 | if (ISPRINT(c)) \ |
c53a8ab6 RS |
82 | putc (c, asm_out_file); \ |
83 | else \ | |
84 | { \ | |
85 | fprintf (asm_out_file, "\\%o", c); \ | |
86 | /* After an octal-escape, if a digit follows, \ | |
87 | terminate one string constant and start another. \ | |
8aeea6e6 | 88 | The VAX assembler fails to stop reading the escape \ |
c53a8ab6 RS |
89 | after three digits, so this is the only way we \ |
90 | can get it to parse the data properly. */ \ | |
d07ecc3b | 91 | if (i < thissize - 1 && ISDIGIT(p[i + 1])) \ |
c53a8ab6 RS |
92 | fprintf (asm_out_file, "\"\n\t.ascii \""); \ |
93 | } \ | |
94 | } \ | |
95 | fprintf (asm_out_file, "\"\n"); \ | |
96 | } \ | |
97 | } \ | |
98 | while (0) | |
99 | #endif | |
d0d4af87 | 100 | |
650f773a JW |
101 | /* This is how we tell the assembler to equate two values. */ |
102 | #ifdef SET_ASM_OP | |
103 | #ifndef ASM_OUTPUT_DEF | |
104 | #define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \ | |
e8638df0 | 105 | do { fprintf ((FILE), "%s", SET_ASM_OP); \ |
650f773a JW |
106 | assemble_name (FILE, LABEL1); \ |
107 | fprintf (FILE, ","); \ | |
108 | assemble_name (FILE, LABEL2); \ | |
109 | fprintf (FILE, "\n"); \ | |
110 | } while (0) | |
111 | #endif | |
112 | #endif | |
daefd78b | 113 | |
ba885ec5 NS |
114 | #ifndef IFUNC_ASM_TYPE |
115 | #define IFUNC_ASM_TYPE "gnu_indirect_function" | |
116 | #endif | |
117 | ||
f1c26cad RO |
118 | #ifndef TLS_COMMON_ASM_OP |
119 | #define TLS_COMMON_ASM_OP ".tls_common" | |
120 | #endif | |
121 | ||
a13e882c JJ |
122 | #if defined (HAVE_AS_TLS) && !defined (ASM_OUTPUT_TLS_COMMON) |
123 | #define ASM_OUTPUT_TLS_COMMON(FILE, DECL, NAME, SIZE) \ | |
124 | do \ | |
125 | { \ | |
f1c26cad | 126 | fprintf ((FILE), "\t%s\t", TLS_COMMON_ASM_OP); \ |
a13e882c JJ |
127 | assemble_name ((FILE), (NAME)); \ |
128 | fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ | |
129 | (SIZE), DECL_ALIGN (DECL) / BITS_PER_UNIT); \ | |
130 | } \ | |
131 | while (0) | |
132 | #endif | |
133 | ||
083b6717 JDA |
134 | /* Decide whether to defer emitting the assembler output for an equate |
135 | of two values. The default is to not defer output. */ | |
136 | #ifndef TARGET_DEFERRED_OUTPUT_DEFS | |
137 | #define TARGET_DEFERRED_OUTPUT_DEFS(DECL,TARGET) false | |
138 | #endif | |
139 | ||
4ad5e05d | 140 | /* This is how to output the definition of a user-level label named |
135a687e | 141 | NAME, such as the label on variable NAME. */ |
4ad5e05d KG |
142 | |
143 | #ifndef ASM_OUTPUT_LABEL | |
144 | #define ASM_OUTPUT_LABEL(FILE,NAME) \ | |
5e3929ed DA |
145 | do { \ |
146 | assemble_name ((FILE), (NAME)); \ | |
147 | fputs (":\n", (FILE)); \ | |
148 | } while (0) | |
4ad5e05d KG |
149 | #endif |
150 | ||
135a687e KT |
151 | /* This is how to output the definition of a user-level label named |
152 | NAME, such as the label on a function. */ | |
153 | ||
154 | #ifndef ASM_OUTPUT_FUNCTION_LABEL | |
155 | #define ASM_OUTPUT_FUNCTION_LABEL(FILE, NAME, DECL) \ | |
156 | ASM_OUTPUT_LABEL ((FILE), (NAME)) | |
157 | #endif | |
158 | ||
57829bc4 MM |
159 | /* Output the definition of a compiler-generated label named NAME. */ |
160 | #ifndef ASM_OUTPUT_INTERNAL_LABEL | |
161 | #define ASM_OUTPUT_INTERNAL_LABEL(FILE,NAME) \ | |
162 | do { \ | |
163 | assemble_name_raw ((FILE), (NAME)); \ | |
164 | fputs (":\n", (FILE)); \ | |
165 | } while (0) | |
166 | #endif | |
167 | ||
81d77cda RK |
168 | /* This is how to output a reference to a user-level label named NAME. */ |
169 | ||
170 | #ifndef ASM_OUTPUT_LABELREF | |
5e3929ed DA |
171 | #define ASM_OUTPUT_LABELREF(FILE,NAME) \ |
172 | do { \ | |
173 | fputs (user_label_prefix, (FILE)); \ | |
174 | fputs ((NAME), (FILE)); \ | |
175 | } while (0); | |
81d77cda RK |
176 | #endif |
177 | ||
8215347e JW |
178 | /* Allow target to print debug info labels specially. This is useful for |
179 | VLIW targets, since debug info labels should go into the middle of | |
180 | instruction bundles instead of breaking them. */ | |
181 | ||
182 | #ifndef ASM_OUTPUT_DEBUG_LABEL | |
183 | #define ASM_OUTPUT_DEBUG_LABEL(FILE, PREFIX, NUM) \ | |
4977bab6 | 184 | (*targetm.asm_out.internal_label) (FILE, PREFIX, NUM) |
8215347e JW |
185 | #endif |
186 | ||
3aa8ab7b | 187 | /* This is how we tell the assembler that a symbol is weak. */ |
20c93f7c RO |
188 | #ifndef ASM_OUTPUT_WEAK_ALIAS |
189 | #if defined (ASM_WEAKEN_LABEL) && defined (ASM_OUTPUT_DEF) | |
3aa8ab7b L |
190 | #define ASM_OUTPUT_WEAK_ALIAS(STREAM, NAME, VALUE) \ |
191 | do \ | |
192 | { \ | |
193 | ASM_WEAKEN_LABEL (STREAM, NAME); \ | |
194 | if (VALUE) \ | |
195 | ASM_OUTPUT_DEF (STREAM, NAME, VALUE); \ | |
196 | } \ | |
197 | while (0) | |
a0203ca7 AO |
198 | #endif |
199 | #endif | |
200 | ||
201 | /* This is how we tell the assembler that a symbol is a weak alias to | |
202 | another symbol that doesn't require the other symbol to be defined. | |
203 | Uses of the former will turn into weak uses of the latter, i.e., | |
204 | uses that, in case the latter is undefined, will not cause errors, | |
205 | and will add it to the symbol table as weak undefined. However, if | |
206 | the latter is referenced directly, a strong reference prevails. */ | |
207 | #ifndef ASM_OUTPUT_WEAKREF | |
208 | #if defined HAVE_GAS_WEAKREF | |
ff2d10c1 | 209 | #define ASM_OUTPUT_WEAKREF(FILE, DECL, NAME, VALUE) \ |
a0203ca7 AO |
210 | do \ |
211 | { \ | |
212 | fprintf ((FILE), "\t.weakref\t"); \ | |
213 | assemble_name ((FILE), (NAME)); \ | |
214 | fprintf ((FILE), ","); \ | |
215 | assemble_name ((FILE), (VALUE)); \ | |
216 | fprintf ((FILE), "\n"); \ | |
217 | } \ | |
218 | while (0) | |
3aa8ab7b | 219 | #endif |
20c93f7c | 220 | #endif |
3aa8ab7b | 221 | |
2be2ac70 ZW |
222 | /* How to emit a .type directive. */ |
223 | #ifndef ASM_OUTPUT_TYPE_DIRECTIVE | |
224 | #if defined TYPE_ASM_OP && defined TYPE_OPERAND_FMT | |
225 | #define ASM_OUTPUT_TYPE_DIRECTIVE(STREAM, NAME, TYPE) \ | |
226 | do \ | |
227 | { \ | |
228 | fputs (TYPE_ASM_OP, STREAM); \ | |
229 | assemble_name (STREAM, NAME); \ | |
230 | fputs (", ", STREAM); \ | |
231 | fprintf (STREAM, TYPE_OPERAND_FMT, TYPE); \ | |
232 | putc ('\n', STREAM); \ | |
233 | } \ | |
234 | while (0) | |
235 | #endif | |
236 | #endif | |
237 | ||
238 | /* How to emit a .size directive. */ | |
239 | #ifndef ASM_OUTPUT_SIZE_DIRECTIVE | |
240 | #ifdef SIZE_ASM_OP | |
241 | #define ASM_OUTPUT_SIZE_DIRECTIVE(STREAM, NAME, SIZE) \ | |
242 | do \ | |
243 | { \ | |
244 | HOST_WIDE_INT size_ = (SIZE); \ | |
245 | fputs (SIZE_ASM_OP, STREAM); \ | |
246 | assemble_name (STREAM, NAME); \ | |
90ff44cf | 247 | fprintf (STREAM, ", " HOST_WIDE_INT_PRINT_DEC "\n", size_); \ |
2be2ac70 ZW |
248 | } \ |
249 | while (0) | |
250 | ||
99086d59 | 251 | #define ASM_OUTPUT_MEASURED_SIZE(STREAM, NAME) \ |
2be2ac70 ZW |
252 | do \ |
253 | { \ | |
254 | fputs (SIZE_ASM_OP, STREAM); \ | |
99086d59 ZW |
255 | assemble_name (STREAM, NAME); \ |
256 | fputs (", .-", STREAM); \ | |
257 | assemble_name (STREAM, NAME); \ | |
2be2ac70 ZW |
258 | putc ('\n', STREAM); \ |
259 | } \ | |
260 | while (0) | |
261 | ||
262 | #endif | |
263 | #endif | |
264 | ||
74b90fe2 JDA |
265 | /* This determines whether or not we support weak symbols. SUPPORTS_WEAK |
266 | must be a preprocessor constant. */ | |
daefd78b | 267 | #ifndef SUPPORTS_WEAK |
79c4e63f | 268 | #if defined (ASM_WEAKEN_LABEL) || defined (ASM_WEAKEN_DECL) |
daefd78b JM |
269 | #define SUPPORTS_WEAK 1 |
270 | #else | |
271 | #define SUPPORTS_WEAK 0 | |
272 | #endif | |
273 | #endif | |
a6ab3aad | 274 | |
74b90fe2 JDA |
275 | /* This determines whether or not we support weak symbols during target |
276 | code generation. TARGET_SUPPORTS_WEAK can be any valid C expression. */ | |
277 | #ifndef TARGET_SUPPORTS_WEAK | |
278 | #define TARGET_SUPPORTS_WEAK (SUPPORTS_WEAK) | |
279 | #endif | |
280 | ||
ed5ef2e4 CC |
281 | /* This determines whether or not we support the discriminator |
282 | attribute in the .loc directive. */ | |
283 | #ifndef SUPPORTS_DISCRIMINATOR | |
284 | #ifdef HAVE_GAS_DISCRIMINATOR | |
285 | #define SUPPORTS_DISCRIMINATOR 1 | |
286 | #else | |
287 | #define SUPPORTS_DISCRIMINATOR 0 | |
288 | #endif | |
289 | #endif | |
290 | ||
1ca894a0 MM |
291 | /* This determines whether or not we support link-once semantics. */ |
292 | #ifndef SUPPORTS_ONE_ONLY | |
293 | #ifdef MAKE_DECL_ONE_ONLY | |
294 | #define SUPPORTS_ONE_ONLY 1 | |
295 | #else | |
296 | #define SUPPORTS_ONE_ONLY 0 | |
297 | #endif | |
298 | #endif | |
299 | ||
0524c91d MA |
300 | /* This determines whether weak symbols must be left out of a static |
301 | archive's table of contents. Defining this macro to be nonzero has | |
302 | the consequence that certain symbols will not be made weak that | |
303 | otherwise would be. The C++ ABI requires this macro to be zero; | |
8c27b7d4 | 304 | see the documentation. */ |
0524c91d MA |
305 | #ifndef TARGET_WEAK_NOT_IN_ARCHIVE_TOC |
306 | #define TARGET_WEAK_NOT_IN_ARCHIVE_TOC 0 | |
4746cf84 MA |
307 | #endif |
308 | ||
ea4b7848 | 309 | /* This determines whether or not we need linkonce unwind information. */ |
4746cf84 MA |
310 | #ifndef TARGET_USES_WEAK_UNWIND_INFO |
311 | #define TARGET_USES_WEAK_UNWIND_INFO 0 | |
312 | #endif | |
313 | ||
d48fd218 ZW |
314 | /* By default, there is no prefix on user-defined symbols. */ |
315 | #ifndef USER_LABEL_PREFIX | |
316 | #define USER_LABEL_PREFIX "" | |
317 | #endif | |
318 | ||
8f08ea1e | 319 | /* If the target supports weak symbols, define TARGET_ATTRIBUTE_WEAK to |
f676971a | 320 | provide a weak attribute. Else define it to nothing. |
8f08ea1e | 321 | |
d02af173 | 322 | This would normally belong in ansidecl.h, but SUPPORTS_WEAK is |
8f08ea1e L |
323 | not available at that time. |
324 | ||
325 | Note, this is only for use by target files which we know are to be | |
326 | compiled by GCC. */ | |
327 | #ifndef TARGET_ATTRIBUTE_WEAK | |
328 | # if SUPPORTS_WEAK | |
329 | # define TARGET_ATTRIBUTE_WEAK __attribute__ ((weak)) | |
330 | # else | |
331 | # define TARGET_ATTRIBUTE_WEAK | |
332 | # endif | |
333 | #endif | |
334 | ||
4746cf84 | 335 | /* Determines whether we may use common symbols to represent one-only |
9cf737f8 | 336 | semantics (a.k.a. "vague linkage"). */ |
4746cf84 MA |
337 | #ifndef USE_COMMON_FOR_ONE_ONLY |
338 | # define USE_COMMON_FOR_ONE_ONLY 1 | |
339 | #endif | |
340 | ||
15072eb1 ZW |
341 | /* By default we can assume that all global symbols are in one namespace, |
342 | across all shared libraries. */ | |
343 | #ifndef MULTIPLE_SYMBOL_SPACES | |
344 | # define MULTIPLE_SYMBOL_SPACES 0 | |
345 | #endif | |
4746cf84 | 346 | |
ea4f1fce JO |
347 | /* If the target supports init_priority C++ attribute, give |
348 | SUPPORTS_INIT_PRIORITY a nonzero value. */ | |
349 | #ifndef SUPPORTS_INIT_PRIORITY | |
350 | #define SUPPORTS_INIT_PRIORITY 1 | |
351 | #endif /* SUPPORTS_INIT_PRIORITY */ | |
352 | ||
5897739e JO |
353 | /* If duplicate library search directories can be removed from a |
354 | linker command without changing the linker's semantics, give this | |
355 | symbol a nonzero. */ | |
356 | #ifndef LINK_ELIMINATE_DUPLICATE_LDIRECTORIES | |
357 | #define LINK_ELIMINATE_DUPLICATE_LDIRECTORIES 0 | |
358 | #endif /* LINK_ELIMINATE_DUPLICATE_LDIRECTORIES */ | |
359 | ||
a6ab3aad JM |
360 | /* If we have a definition of INCOMING_RETURN_ADDR_RTX, assume that |
361 | the rest of the DWARF 2 frame unwind support is also provided. */ | |
f0a0390e | 362 | #if !defined (DWARF2_UNWIND_INFO) && defined (INCOMING_RETURN_ADDR_RTX) |
0021b564 | 363 | #define DWARF2_UNWIND_INFO 1 |
a6ab3aad | 364 | #endif |
b366352b | 365 | |
2cc07db4 RH |
366 | /* If we have named sections, and we're using crtstuff to run ctors, |
367 | use them for registering eh frame information. */ | |
bc2a8f08 RH |
368 | #if defined (TARGET_ASM_NAMED_SECTION) && DWARF2_UNWIND_INFO \ |
369 | && !defined(EH_FRAME_IN_DATA_SECTION) | |
7c262518 RH |
370 | #ifndef EH_FRAME_SECTION_NAME |
371 | #define EH_FRAME_SECTION_NAME ".eh_frame" | |
372 | #endif | |
31cf0144 JM |
373 | #endif |
374 | ||
1a35e62d MM |
375 | /* On many systems, different EH table encodings are used under |
376 | difference circumstances. Some will require runtime relocations; | |
377 | some will not. For those that do not require runtime relocations, | |
378 | we would like to make the table read-only. However, since the | |
379 | read-only tables may need to be combined with read-write tables | |
380 | that do require runtime relocation, it is not safe to make the | |
381 | tables read-only unless the linker will merge read-only and | |
382 | read-write sections into a single read-write section. If your | |
383 | linker does not have this ability, but your system is such that no | |
384 | encoding used with non-PIC code will ever require a runtime | |
385 | relocation, then you can define EH_TABLES_CAN_BE_READ_ONLY to 1 in | |
386 | your target configuration file. */ | |
387 | #ifndef EH_TABLES_CAN_BE_READ_ONLY | |
388 | #ifdef HAVE_LD_RO_RW_SECTION_MIXING | |
389 | #define EH_TABLES_CAN_BE_READ_ONLY 1 | |
390 | #else | |
391 | #define EH_TABLES_CAN_BE_READ_ONLY 0 | |
392 | #endif | |
393 | #endif | |
394 | ||
6351543d AG |
395 | /* If we have named section and we support weak symbols, then use the |
396 | .jcr section for recording java classes which need to be registered | |
397 | at program start-up time. */ | |
398 | #if defined (TARGET_ASM_NAMED_SECTION) && SUPPORTS_WEAK | |
399 | #ifndef JCR_SECTION_NAME | |
400 | #define JCR_SECTION_NAME ".jcr" | |
401 | #endif | |
402 | #endif | |
403 | ||
adb35797 | 404 | /* This decision to use a .jcr section can be overridden by defining |
e50e6b88 DS |
405 | USE_JCR_SECTION to 0 in target file. This is necessary if target |
406 | can define JCR_SECTION_NAME but does not have crtstuff or | |
407 | linker support for .jcr section. */ | |
408 | #ifndef TARGET_USE_JCR_SECTION | |
409 | #ifdef JCR_SECTION_NAME | |
410 | #define TARGET_USE_JCR_SECTION 1 | |
411 | #else | |
412 | #define TARGET_USE_JCR_SECTION 0 | |
413 | #endif | |
414 | #endif | |
415 | ||
c478efd1 GDR |
416 | /* Number of hardware registers that go into the DWARF-2 unwind info. |
417 | If not defined, equals FIRST_PSEUDO_REGISTER */ | |
418 | ||
419 | #ifndef DWARF_FRAME_REGISTERS | |
420 | #define DWARF_FRAME_REGISTERS FIRST_PSEUDO_REGISTER | |
421 | #endif | |
d8ea8f28 | 422 | |
db42e39d RH |
423 | /* Offsets recorded in opcodes are a multiple of this alignment factor. */ |
424 | #ifndef DWARF_CIE_DATA_ALIGNMENT | |
425 | #ifdef STACK_GROWS_DOWNWARD | |
426 | #define DWARF_CIE_DATA_ALIGNMENT (-((int) UNITS_PER_WORD)) | |
427 | #else | |
428 | #define DWARF_CIE_DATA_ALIGNMENT ((int) UNITS_PER_WORD) | |
429 | #endif | |
430 | #endif | |
431 | ||
432 | /* The DWARF 2 CFA column which tracks the return address. Normally this | |
433 | is the column for PC, or the first column after all of the hard | |
434 | registers. */ | |
435 | #ifndef DWARF_FRAME_RETURN_COLUMN | |
436 | #ifdef PC_REGNUM | |
437 | #define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (PC_REGNUM) | |
438 | #else | |
439 | #define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGISTERS | |
440 | #endif | |
441 | #endif | |
442 | ||
4617e3b5 KG |
443 | /* How to renumber registers for dbx and gdb. If not defined, assume |
444 | no renumbering is necessary. */ | |
445 | ||
446 | #ifndef DBX_REGISTER_NUMBER | |
447 | #define DBX_REGISTER_NUMBER(REGNO) (REGNO) | |
448 | #endif | |
449 | ||
db42e39d RH |
450 | /* The mapping from gcc register number to DWARF 2 CFA column number. |
451 | By default, we just provide columns for all registers. */ | |
452 | #ifndef DWARF_FRAME_REGNUM | |
453 | #define DWARF_FRAME_REGNUM(REG) DBX_REGISTER_NUMBER (REG) | |
454 | #endif | |
455 | ||
456 | /* Map register numbers held in the call frame info that gcc has | |
457 | collected using DWARF_FRAME_REGNUM to those that should be output in | |
458 | .debug_frame and .eh_frame. */ | |
459 | #ifndef DWARF2_FRAME_REG_OUT | |
460 | #define DWARF2_FRAME_REG_OUT(REGNO, FOR_EH) (REGNO) | |
461 | #endif | |
462 | ||
948d330e RH |
463 | /* The size of addresses as they appear in the Dwarf 2 data. |
464 | Some architectures use word addresses to refer to code locations, | |
465 | but Dwarf 2 info always uses byte addresses. On such machines, | |
466 | Dwarf 2 addresses need to be larger than the architecture's | |
467 | pointers. */ | |
468 | #ifndef DWARF2_ADDR_SIZE | |
469 | #define DWARF2_ADDR_SIZE (POINTER_SIZE / BITS_PER_UNIT) | |
470 | #endif | |
471 | ||
472 | /* The size in bytes of a DWARF field indicating an offset or length | |
473 | relative to a debug info section, specified to be 4 bytes in the | |
474 | DWARF-2 specification. The SGI/MIPS ABI defines it to be the same | |
475 | as PTR_SIZE. */ | |
476 | #ifndef DWARF_OFFSET_SIZE | |
477 | #define DWARF_OFFSET_SIZE 4 | |
478 | #endif | |
479 | ||
480 | /* The size in bytes of a DWARF 4 type signature. */ | |
481 | #ifndef DWARF_TYPE_SIGNATURE_SIZE | |
482 | #define DWARF_TYPE_SIGNATURE_SIZE 8 | |
483 | #endif | |
484 | ||
d8ea8f28 ZW |
485 | /* Default sizes for base C types. If the sizes are different for |
486 | your target, you should override these values by defining the | |
487 | appropriate symbols in your tm.h file. */ | |
488 | ||
5c60f03d KG |
489 | #ifndef BITS_PER_UNIT |
490 | #define BITS_PER_UNIT 8 | |
491 | #endif | |
492 | ||
e81dd381 KG |
493 | #ifndef BITS_PER_WORD |
494 | #define BITS_PER_WORD (BITS_PER_UNIT * UNITS_PER_WORD) | |
495 | #endif | |
496 | ||
d8ea8f28 ZW |
497 | #ifndef CHAR_TYPE_SIZE |
498 | #define CHAR_TYPE_SIZE BITS_PER_UNIT | |
499 | #endif | |
500 | ||
609688f3 JM |
501 | #ifndef BOOL_TYPE_SIZE |
502 | /* `bool' has size and alignment `1', on almost all platforms. */ | |
503 | #define BOOL_TYPE_SIZE CHAR_TYPE_SIZE | |
504 | #endif | |
505 | ||
d8ea8f28 ZW |
506 | #ifndef SHORT_TYPE_SIZE |
507 | #define SHORT_TYPE_SIZE (BITS_PER_UNIT * MIN ((UNITS_PER_WORD + 1) / 2, 2)) | |
508 | #endif | |
509 | ||
510 | #ifndef INT_TYPE_SIZE | |
511 | #define INT_TYPE_SIZE BITS_PER_WORD | |
512 | #endif | |
513 | ||
514 | #ifndef LONG_TYPE_SIZE | |
515 | #define LONG_TYPE_SIZE BITS_PER_WORD | |
516 | #endif | |
517 | ||
518 | #ifndef LONG_LONG_TYPE_SIZE | |
519 | #define LONG_LONG_TYPE_SIZE (BITS_PER_WORD * 2) | |
520 | #endif | |
521 | ||
522 | #ifndef WCHAR_TYPE_SIZE | |
523 | #define WCHAR_TYPE_SIZE INT_TYPE_SIZE | |
524 | #endif | |
525 | ||
d8ea8f28 ZW |
526 | #ifndef FLOAT_TYPE_SIZE |
527 | #define FLOAT_TYPE_SIZE BITS_PER_WORD | |
528 | #endif | |
529 | ||
530 | #ifndef DOUBLE_TYPE_SIZE | |
531 | #define DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2) | |
532 | #endif | |
533 | ||
534 | #ifndef LONG_DOUBLE_TYPE_SIZE | |
535 | #define LONG_DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2) | |
536 | #endif | |
537 | ||
9a8ce21f JG |
538 | #ifndef DECIMAL32_TYPE_SIZE |
539 | #define DECIMAL32_TYPE_SIZE 32 | |
b8698a0f | 540 | #endif |
9a8ce21f | 541 | |
b8698a0f | 542 | #ifndef DECIMAL64_TYPE_SIZE |
9a8ce21f | 543 | #define DECIMAL64_TYPE_SIZE 64 |
b8698a0f | 544 | #endif |
9a8ce21f JG |
545 | |
546 | #ifndef DECIMAL128_TYPE_SIZE | |
547 | #define DECIMAL128_TYPE_SIZE 128 | |
548 | #endif | |
549 | ||
325217ed CF |
550 | #ifndef SHORT_FRACT_TYPE_SIZE |
551 | #define SHORT_FRACT_TYPE_SIZE BITS_PER_UNIT | |
552 | #endif | |
553 | ||
554 | #ifndef FRACT_TYPE_SIZE | |
555 | #define FRACT_TYPE_SIZE (BITS_PER_UNIT * 2) | |
556 | #endif | |
557 | ||
558 | #ifndef LONG_FRACT_TYPE_SIZE | |
559 | #define LONG_FRACT_TYPE_SIZE (BITS_PER_UNIT * 4) | |
560 | #endif | |
561 | ||
562 | #ifndef LONG_LONG_FRACT_TYPE_SIZE | |
563 | #define LONG_LONG_FRACT_TYPE_SIZE (BITS_PER_UNIT * 8) | |
564 | #endif | |
565 | ||
566 | #ifndef SHORT_ACCUM_TYPE_SIZE | |
567 | #define SHORT_ACCUM_TYPE_SIZE (SHORT_FRACT_TYPE_SIZE * 2) | |
568 | #endif | |
569 | ||
570 | #ifndef ACCUM_TYPE_SIZE | |
571 | #define ACCUM_TYPE_SIZE (FRACT_TYPE_SIZE * 2) | |
572 | #endif | |
573 | ||
574 | #ifndef LONG_ACCUM_TYPE_SIZE | |
575 | #define LONG_ACCUM_TYPE_SIZE (LONG_FRACT_TYPE_SIZE * 2) | |
576 | #endif | |
577 | ||
578 | #ifndef LONG_LONG_ACCUM_TYPE_SIZE | |
579 | #define LONG_LONG_ACCUM_TYPE_SIZE (LONG_LONG_FRACT_TYPE_SIZE * 2) | |
580 | #endif | |
581 | ||
1ffc7157 FXC |
582 | /* We let tm.h override the types used here, to handle trivial differences |
583 | such as the choice of unsigned int or long unsigned int for size_t. | |
584 | When machines start needing nontrivial differences in the size type, | |
585 | it would be best to do something here to figure out automatically | |
586 | from other information what type to use. */ | |
587 | ||
588 | #ifndef SIZE_TYPE | |
589 | #define SIZE_TYPE "long unsigned int" | |
590 | #endif | |
591 | ||
592 | #ifndef PID_TYPE | |
593 | #define PID_TYPE "int" | |
594 | #endif | |
595 | ||
596 | /* If GCC knows the exact uint_least16_t and uint_least32_t types from | |
597 | <stdint.h>, use them for char16_t and char32_t. Otherwise, use | |
598 | these guesses; getting the wrong type of a given width will not | |
599 | affect C++ name mangling because in C++ these are distinct types | |
600 | not typedefs. */ | |
601 | ||
602 | #ifdef UINT_LEAST16_TYPE | |
603 | #define CHAR16_TYPE UINT_LEAST16_TYPE | |
604 | #else | |
605 | #define CHAR16_TYPE "short unsigned int" | |
606 | #endif | |
607 | ||
608 | #ifdef UINT_LEAST32_TYPE | |
609 | #define CHAR32_TYPE UINT_LEAST32_TYPE | |
610 | #else | |
611 | #define CHAR32_TYPE "unsigned int" | |
612 | #endif | |
613 | ||
614 | #ifndef WCHAR_TYPE | |
615 | #define WCHAR_TYPE "int" | |
616 | #endif | |
617 | ||
618 | /* WCHAR_TYPE gets overridden by -fshort-wchar. */ | |
619 | #define MODIFIED_WCHAR_TYPE \ | |
620 | (flag_short_wchar ? "short unsigned int" : WCHAR_TYPE) | |
621 | ||
622 | #ifndef PTRDIFF_TYPE | |
623 | #define PTRDIFF_TYPE "long int" | |
624 | #endif | |
625 | ||
626 | #ifndef WINT_TYPE | |
627 | #define WINT_TYPE "unsigned int" | |
628 | #endif | |
629 | ||
630 | #ifndef INTMAX_TYPE | |
631 | #define INTMAX_TYPE ((INT_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \ | |
632 | ? "int" \ | |
633 | : ((LONG_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \ | |
634 | ? "long int" \ | |
635 | : "long long int")) | |
636 | #endif | |
637 | ||
638 | #ifndef UINTMAX_TYPE | |
639 | #define UINTMAX_TYPE ((INT_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \ | |
640 | ? "unsigned int" \ | |
641 | : ((LONG_TYPE_SIZE == LONG_LONG_TYPE_SIZE) \ | |
642 | ? "long unsigned int" \ | |
643 | : "long long unsigned int")) | |
644 | #endif | |
645 | ||
646 | ||
647 | /* There are no default definitions of these <stdint.h> types. */ | |
648 | ||
649 | #ifndef SIG_ATOMIC_TYPE | |
650 | #define SIG_ATOMIC_TYPE ((const char *) NULL) | |
651 | #endif | |
652 | ||
653 | #ifndef INT8_TYPE | |
654 | #define INT8_TYPE ((const char *) NULL) | |
655 | #endif | |
656 | ||
657 | #ifndef INT16_TYPE | |
658 | #define INT16_TYPE ((const char *) NULL) | |
659 | #endif | |
660 | ||
661 | #ifndef INT32_TYPE | |
662 | #define INT32_TYPE ((const char *) NULL) | |
663 | #endif | |
664 | ||
665 | #ifndef INT64_TYPE | |
666 | #define INT64_TYPE ((const char *) NULL) | |
667 | #endif | |
668 | ||
669 | #ifndef UINT8_TYPE | |
670 | #define UINT8_TYPE ((const char *) NULL) | |
671 | #endif | |
672 | ||
673 | #ifndef UINT16_TYPE | |
674 | #define UINT16_TYPE ((const char *) NULL) | |
675 | #endif | |
676 | ||
677 | #ifndef UINT32_TYPE | |
678 | #define UINT32_TYPE ((const char *) NULL) | |
679 | #endif | |
680 | ||
681 | #ifndef UINT64_TYPE | |
682 | #define UINT64_TYPE ((const char *) NULL) | |
683 | #endif | |
684 | ||
685 | #ifndef INT_LEAST8_TYPE | |
686 | #define INT_LEAST8_TYPE ((const char *) NULL) | |
687 | #endif | |
688 | ||
689 | #ifndef INT_LEAST16_TYPE | |
690 | #define INT_LEAST16_TYPE ((const char *) NULL) | |
691 | #endif | |
692 | ||
693 | #ifndef INT_LEAST32_TYPE | |
694 | #define INT_LEAST32_TYPE ((const char *) NULL) | |
695 | #endif | |
696 | ||
697 | #ifndef INT_LEAST64_TYPE | |
698 | #define INT_LEAST64_TYPE ((const char *) NULL) | |
699 | #endif | |
700 | ||
701 | #ifndef UINT_LEAST8_TYPE | |
702 | #define UINT_LEAST8_TYPE ((const char *) NULL) | |
703 | #endif | |
704 | ||
705 | #ifndef UINT_LEAST16_TYPE | |
706 | #define UINT_LEAST16_TYPE ((const char *) NULL) | |
707 | #endif | |
708 | ||
709 | #ifndef UINT_LEAST32_TYPE | |
710 | #define UINT_LEAST32_TYPE ((const char *) NULL) | |
711 | #endif | |
712 | ||
713 | #ifndef UINT_LEAST64_TYPE | |
714 | #define UINT_LEAST64_TYPE ((const char *) NULL) | |
715 | #endif | |
716 | ||
717 | #ifndef INT_FAST8_TYPE | |
718 | #define INT_FAST8_TYPE ((const char *) NULL) | |
719 | #endif | |
720 | ||
721 | #ifndef INT_FAST16_TYPE | |
722 | #define INT_FAST16_TYPE ((const char *) NULL) | |
723 | #endif | |
724 | ||
725 | #ifndef INT_FAST32_TYPE | |
726 | #define INT_FAST32_TYPE ((const char *) NULL) | |
727 | #endif | |
728 | ||
729 | #ifndef INT_FAST64_TYPE | |
730 | #define INT_FAST64_TYPE ((const char *) NULL) | |
731 | #endif | |
732 | ||
733 | #ifndef UINT_FAST8_TYPE | |
734 | #define UINT_FAST8_TYPE ((const char *) NULL) | |
735 | #endif | |
736 | ||
737 | #ifndef UINT_FAST16_TYPE | |
738 | #define UINT_FAST16_TYPE ((const char *) NULL) | |
739 | #endif | |
740 | ||
741 | #ifndef UINT_FAST32_TYPE | |
742 | #define UINT_FAST32_TYPE ((const char *) NULL) | |
743 | #endif | |
744 | ||
745 | #ifndef UINT_FAST64_TYPE | |
746 | #define UINT_FAST64_TYPE ((const char *) NULL) | |
747 | #endif | |
748 | ||
749 | #ifndef INTPTR_TYPE | |
750 | #define INTPTR_TYPE ((const char *) NULL) | |
751 | #endif | |
752 | ||
753 | #ifndef UINTPTR_TYPE | |
754 | #define UINTPTR_TYPE ((const char *) NULL) | |
755 | #endif | |
756 | ||
2465bf76 KG |
757 | /* Width in bits of a pointer. Mind the value of the macro `Pmode'. */ |
758 | #ifndef POINTER_SIZE | |
759 | #define POINTER_SIZE BITS_PER_WORD | |
760 | #endif | |
761 | ||
848e0190 JH |
762 | #ifndef PIC_OFFSET_TABLE_REGNUM |
763 | #define PIC_OFFSET_TABLE_REGNUM INVALID_REGNUM | |
764 | #endif | |
765 | ||
f8fe0a4a JM |
766 | #ifndef PIC_OFFSET_TABLE_REG_CALL_CLOBBERED |
767 | #define PIC_OFFSET_TABLE_REG_CALL_CLOBBERED 0 | |
768 | #endif | |
769 | ||
b2ca3702 MM |
770 | #ifndef TARGET_DLLIMPORT_DECL_ATTRIBUTES |
771 | #define TARGET_DLLIMPORT_DECL_ATTRIBUTES 0 | |
772 | #endif | |
773 | ||
63c5b495 | 774 | #ifndef TARGET_DECLSPEC |
b2ca3702 | 775 | #if TARGET_DLLIMPORT_DECL_ATTRIBUTES |
63c5b495 MM |
776 | /* If the target supports the "dllimport" attribute, users are |
777 | probably used to the "__declspec" syntax. */ | |
778 | #define TARGET_DECLSPEC 1 | |
779 | #else | |
780 | #define TARGET_DECLSPEC 0 | |
781 | #endif | |
782 | #endif | |
783 | ||
a9374841 MM |
784 | /* By default, the preprocessor should be invoked the same way in C++ |
785 | as in C. */ | |
786 | #ifndef CPLUSPLUS_CPP_SPEC | |
787 | #ifdef CPP_SPEC | |
788 | #define CPLUSPLUS_CPP_SPEC CPP_SPEC | |
789 | #endif | |
790 | #endif | |
791 | ||
bf501a65 RH |
792 | #ifndef ACCUMULATE_OUTGOING_ARGS |
793 | #define ACCUMULATE_OUTGOING_ARGS 0 | |
794 | #endif | |
795 | ||
796 | /* Supply a default definition for PUSH_ARGS. */ | |
797 | #ifndef PUSH_ARGS | |
798 | #ifdef PUSH_ROUNDING | |
799 | #define PUSH_ARGS !ACCUMULATE_OUTGOING_ARGS | |
800 | #else | |
801 | #define PUSH_ARGS 0 | |
802 | #endif | |
803 | #endif | |
804 | ||
9d6bef95 JM |
805 | /* Decide whether a function's arguments should be processed |
806 | from first to last or from last to first. | |
807 | ||
808 | They should if the stack and args grow in opposite directions, but | |
809 | only if we have push insns. */ | |
810 | ||
811 | #ifdef PUSH_ROUNDING | |
812 | ||
813 | #ifndef PUSH_ARGS_REVERSED | |
814 | #if defined (STACK_GROWS_DOWNWARD) != defined (ARGS_GROW_DOWNWARD) | |
815 | #define PUSH_ARGS_REVERSED PUSH_ARGS | |
816 | #endif | |
817 | #endif | |
818 | ||
819 | #endif | |
820 | ||
821 | #ifndef PUSH_ARGS_REVERSED | |
822 | #define PUSH_ARGS_REVERSED 0 | |
823 | #endif | |
824 | ||
95331614 OH |
825 | /* Default value for the alignment (in bits) a C conformant malloc has to |
826 | provide. This default is intended to be safe and always correct. */ | |
827 | #ifndef MALLOC_ABI_ALIGNMENT | |
828 | #define MALLOC_ABI_ALIGNMENT BITS_PER_WORD | |
829 | #endif | |
830 | ||
31cdd499 ZW |
831 | /* If PREFERRED_STACK_BOUNDARY is not defined, set it to STACK_BOUNDARY. |
832 | STACK_BOUNDARY is required. */ | |
833 | #ifndef PREFERRED_STACK_BOUNDARY | |
834 | #define PREFERRED_STACK_BOUNDARY STACK_BOUNDARY | |
835 | #endif | |
836 | ||
2e3f842f L |
837 | /* Set INCOMING_STACK_BOUNDARY to PREFERRED_STACK_BOUNDARY if it is not |
838 | defined. */ | |
839 | #ifndef INCOMING_STACK_BOUNDARY | |
840 | #define INCOMING_STACK_BOUNDARY PREFERRED_STACK_BOUNDARY | |
841 | #endif | |
842 | ||
467cecf3 JB |
843 | #ifndef TARGET_DEFAULT_PACK_STRUCT |
844 | #define TARGET_DEFAULT_PACK_STRUCT 0 | |
845 | #endif | |
846 | ||
a6f5e048 RH |
847 | /* By default, the vtable entries are void pointers, the so the alignment |
848 | is the same as pointer alignment. The value of this macro specifies | |
849 | the alignment of the vtable entry in bits. It should be defined only | |
4b7e68e7 | 850 | when special alignment is necessary. */ |
a6f5e048 RH |
851 | #ifndef TARGET_VTABLE_ENTRY_ALIGN |
852 | #define TARGET_VTABLE_ENTRY_ALIGN POINTER_SIZE | |
853 | #endif | |
854 | ||
855 | /* There are a few non-descriptor entries in the vtable at offsets below | |
856 | zero. If these entries must be padded (say, to preserve the alignment | |
857 | specified by TARGET_VTABLE_ENTRY_ALIGN), set this to the number of | |
858 | words in each data entry. */ | |
859 | #ifndef TARGET_VTABLE_DATA_ENTRY_DISTANCE | |
860 | #define TARGET_VTABLE_DATA_ENTRY_DISTANCE 1 | |
861 | #endif | |
862 | ||
4a77e08c DS |
863 | /* Decide whether it is safe to use a local alias for a virtual function |
864 | when constructing thunks. */ | |
865 | #ifndef TARGET_USE_LOCAL_THUNK_ALIAS_P | |
866 | #ifdef ASM_OUTPUT_DEF | |
867 | #define TARGET_USE_LOCAL_THUNK_ALIAS_P(DECL) 1 | |
868 | #else | |
869 | #define TARGET_USE_LOCAL_THUNK_ALIAS_P(DECL) 0 | |
870 | #endif | |
871 | #endif | |
872 | ||
2a1ee410 RH |
873 | /* Select a format to encode pointers in exception handling data. We |
874 | prefer those that result in fewer dynamic relocations. Assume no | |
875 | special support here and encode direct references. */ | |
876 | #ifndef ASM_PREFERRED_EH_DATA_FORMAT | |
877 | #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) DW_EH_PE_absptr | |
878 | #endif | |
879 | ||
f3c55c97 AO |
880 | /* By default, the C++ compiler will use the lowest bit of the pointer |
881 | to function to indicate a pointer-to-member-function points to a | |
882 | virtual member function. However, if FUNCTION_BOUNDARY indicates | |
883 | function addresses aren't always even, the lowest bit of the delta | |
884 | field will be used. */ | |
885 | #ifndef TARGET_PTRMEMFUNC_VBIT_LOCATION | |
886 | #define TARGET_PTRMEMFUNC_VBIT_LOCATION \ | |
887 | (FUNCTION_BOUNDARY >= 2 * BITS_PER_UNIT \ | |
888 | ? ptrmemfunc_vbit_in_pfn : ptrmemfunc_vbit_in_delta) | |
889 | #endif | |
890 | ||
5f0e9ea2 GK |
891 | #ifndef DEFAULT_GDB_EXTENSIONS |
892 | #define DEFAULT_GDB_EXTENSIONS 1 | |
893 | #endif | |
894 | ||
895 | /* If more than one debugging type is supported, you must define | |
f8ca7e49 | 896 | PREFERRED_DEBUGGING_TYPE to choose the default. */ |
5f0e9ea2 | 897 | |
f8ca7e49 ZW |
898 | #if 1 < (defined (DBX_DEBUGGING_INFO) + defined (SDB_DEBUGGING_INFO) \ |
899 | + defined (DWARF2_DEBUGGING_INFO) + defined (XCOFF_DEBUGGING_INFO) \ | |
900 | + defined (VMS_DEBUGGING_INFO)) | |
5f0e9ea2 | 901 | #ifndef PREFERRED_DEBUGGING_TYPE |
f8ca7e49 | 902 | #error You must define PREFERRED_DEBUGGING_TYPE |
5f0e9ea2 | 903 | #endif /* no PREFERRED_DEBUGGING_TYPE */ |
f8ca7e49 ZW |
904 | |
905 | /* If only one debugging format is supported, define PREFERRED_DEBUGGING_TYPE | |
906 | here so other code needn't care. */ | |
907 | #elif defined DBX_DEBUGGING_INFO | |
5f0e9ea2 | 908 | #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG |
f8ca7e49 ZW |
909 | |
910 | #elif defined SDB_DEBUGGING_INFO | |
5f0e9ea2 | 911 | #define PREFERRED_DEBUGGING_TYPE SDB_DEBUG |
f8ca7e49 ZW |
912 | |
913 | #elif defined DWARF2_DEBUGGING_INFO | |
5f0e9ea2 | 914 | #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG |
f8ca7e49 ZW |
915 | |
916 | #elif defined VMS_DEBUGGING_INFO | |
7a0c8d71 | 917 | #define PREFERRED_DEBUGGING_TYPE VMS_AND_DWARF2_DEBUG |
f8ca7e49 ZW |
918 | |
919 | #elif defined XCOFF_DEBUGGING_INFO | |
5f0e9ea2 | 920 | #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG |
5f0e9ea2 | 921 | |
f8ca7e49 ZW |
922 | #else |
923 | /* No debugging format is supported by this target. */ | |
5f0e9ea2 GK |
924 | #define PREFERRED_DEBUGGING_TYPE NO_DEBUG |
925 | #endif | |
926 | ||
3fcaac1d RS |
927 | #ifndef LARGEST_EXPONENT_IS_NORMAL |
928 | #define LARGEST_EXPONENT_IS_NORMAL(SIZE) 0 | |
929 | #endif | |
930 | ||
931 | #ifndef ROUND_TOWARDS_ZERO | |
932 | #define ROUND_TOWARDS_ZERO 0 | |
933 | #endif | |
934 | ||
c15c90bb ZW |
935 | #ifndef FLOAT_LIB_COMPARE_RETURNS_BOOL |
936 | #define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) false | |
937 | #endif | |
938 | ||
6cb38cd4 | 939 | /* True if the targets integer-comparison functions return { 0, 1, 2 |
b3f8d95d MM |
940 | } to indicate { <, ==, > }. False if { -1, 0, 1 } is used |
941 | instead. The libgcc routines are biased. */ | |
942 | #ifndef TARGET_LIB_INT_CMP_BIASED | |
943 | #define TARGET_LIB_INT_CMP_BIASED (true) | |
944 | #endif | |
945 | ||
2d295af5 ZW |
946 | /* If FLOAT_WORDS_BIG_ENDIAN is not defined in the header files, |
947 | then the word-endianness is the same as for integers. */ | |
efdc7e19 RH |
948 | #ifndef FLOAT_WORDS_BIG_ENDIAN |
949 | #define FLOAT_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN | |
950 | #endif | |
951 | ||
c0a6a1ef BS |
952 | #ifndef REG_WORDS_BIG_ENDIAN |
953 | #define REG_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN | |
954 | #endif | |
955 | ||
8ce94e44 JM |
956 | #ifdef TARGET_FLT_EVAL_METHOD |
957 | #define TARGET_FLT_EVAL_METHOD_NON_DEFAULT 1 | |
958 | #else | |
d57a4b98 | 959 | #define TARGET_FLT_EVAL_METHOD 0 |
8ce94e44 | 960 | #define TARGET_FLT_EVAL_METHOD_NON_DEFAULT 0 |
d57a4b98 RH |
961 | #endif |
962 | ||
9a8ce21f JG |
963 | #ifndef TARGET_DEC_EVAL_METHOD |
964 | #define TARGET_DEC_EVAL_METHOD 2 | |
965 | #endif | |
966 | ||
750054a2 CT |
967 | #ifndef HAS_LONG_COND_BRANCH |
968 | #define HAS_LONG_COND_BRANCH 0 | |
969 | #endif | |
970 | ||
971 | #ifndef HAS_LONG_UNCOND_BRANCH | |
972 | #define HAS_LONG_UNCOND_BRANCH 0 | |
973 | #endif | |
974 | ||
4bafaa6f | 975 | /* Determine whether __cxa_atexit, rather than atexit, is used to |
4b7e68e7 | 976 | register C++ destructors for local statics and global objects. */ |
4bafaa6f L |
977 | #ifndef DEFAULT_USE_CXA_ATEXIT |
978 | #define DEFAULT_USE_CXA_ATEXIT 0 | |
979 | #endif | |
980 | ||
f38840db ZW |
981 | /* If none of these macros are defined, the port must use the new |
982 | technique of defining constraints in the machine description. | |
983 | tm_p.h will define those macros that machine-independent code | |
984 | still uses. */ | |
985 | #if !defined CONSTRAINT_LEN \ | |
986 | && !defined REG_CLASS_FROM_LETTER \ | |
987 | && !defined REG_CLASS_FROM_CONSTRAINT \ | |
988 | && !defined CONST_OK_FOR_LETTER_P \ | |
989 | && !defined CONST_OK_FOR_CONSTRAINT_P \ | |
990 | && !defined CONST_DOUBLE_OK_FOR_LETTER_P \ | |
991 | && !defined CONST_DOUBLE_OK_FOR_CONSTRAINT_P \ | |
992 | && !defined EXTRA_CONSTRAINT \ | |
993 | && !defined EXTRA_CONSTRAINT_STR \ | |
994 | && !defined EXTRA_MEMORY_CONSTRAINT \ | |
995 | && !defined EXTRA_ADDRESS_CONSTRAINT | |
996 | ||
997 | #define USE_MD_CONSTRAINTS | |
998 | ||
999 | #if GCC_VERSION >= 3000 && defined IN_GCC | |
1000 | /* These old constraint macros shouldn't appear anywhere in a | |
1001 | configuration using MD constraint definitions. */ | |
1002 | #pragma GCC poison REG_CLASS_FROM_LETTER CONST_OK_FOR_LETTER_P \ | |
1003 | CONST_DOUBLE_OK_FOR_LETTER_P EXTRA_CONSTRAINT | |
1004 | #endif | |
1005 | ||
1006 | #else /* old constraint mechanism in use */ | |
1007 | ||
ccfc6cc8 UW |
1008 | /* Determine whether extra constraint letter should be handled |
1009 | via address reload (like 'o'). */ | |
1010 | #ifndef EXTRA_MEMORY_CONSTRAINT | |
97488870 | 1011 | #define EXTRA_MEMORY_CONSTRAINT(C,STR) 0 |
ccfc6cc8 UW |
1012 | #endif |
1013 | ||
1014 | /* Determine whether extra constraint letter should be handled | |
1015 | as an address (like 'p'). */ | |
1016 | #ifndef EXTRA_ADDRESS_CONSTRAINT | |
97488870 R |
1017 | #define EXTRA_ADDRESS_CONSTRAINT(C,STR) 0 |
1018 | #endif | |
1019 | ||
1020 | /* When a port defines CONSTRAINT_LEN, it should use DEFAULT_CONSTRAINT_LEN | |
1021 | for all the characters that it does not want to change, so things like the | |
1022 | 'length' of a digit in a matching constraint is an implementation detail, | |
1023 | and not part of the interface. */ | |
1024 | #define DEFAULT_CONSTRAINT_LEN(C,STR) 1 | |
1025 | ||
1026 | #ifndef CONSTRAINT_LEN | |
1027 | #define CONSTRAINT_LEN(C,STR) DEFAULT_CONSTRAINT_LEN (C, STR) | |
1028 | #endif | |
1029 | ||
1030 | #if defined (CONST_OK_FOR_LETTER_P) && ! defined (CONST_OK_FOR_CONSTRAINT_P) | |
1031 | #define CONST_OK_FOR_CONSTRAINT_P(VAL,C,STR) CONST_OK_FOR_LETTER_P (VAL, C) | |
1032 | #endif | |
1033 | ||
1034 | #if defined (CONST_DOUBLE_OK_FOR_LETTER_P) && ! defined (CONST_DOUBLE_OK_FOR_CONSTRAINT_P) | |
1035 | #define CONST_DOUBLE_OK_FOR_CONSTRAINT_P(OP,C,STR) \ | |
1036 | CONST_DOUBLE_OK_FOR_LETTER_P (OP, C) | |
1037 | #endif | |
1038 | ||
3ff5ef1b | 1039 | #ifndef REG_CLASS_FROM_CONSTRAINT |
97488870 | 1040 | #define REG_CLASS_FROM_CONSTRAINT(C,STR) REG_CLASS_FROM_LETTER (C) |
3ff5ef1b | 1041 | #endif |
97488870 R |
1042 | |
1043 | #if defined (EXTRA_CONSTRAINT) && ! defined (EXTRA_CONSTRAINT_STR) | |
1044 | #define EXTRA_CONSTRAINT_STR(OP, C,STR) EXTRA_CONSTRAINT (OP, C) | |
ccfc6cc8 UW |
1045 | #endif |
1046 | ||
f38840db ZW |
1047 | #endif /* old constraint mechanism in use */ |
1048 | ||
3f117656 | 1049 | /* Determine whether the entire c99 runtime |
272f51a3 JH |
1050 | is present in the runtime library. */ |
1051 | #ifndef TARGET_C99_FUNCTIONS | |
1052 | #define TARGET_C99_FUNCTIONS 0 | |
1053 | #endif | |
1054 | ||
006339cd RG |
1055 | /* Determine whether the target runtime library has |
1056 | a sincos implementation following the GNU extension. */ | |
1057 | #ifndef TARGET_HAS_SINCOS | |
1058 | #define TARGET_HAS_SINCOS 0 | |
1059 | #endif | |
1060 | ||
7dba8395 | 1061 | /* Indicate that CLZ and CTZ are undefined at zero. */ |
f676971a | 1062 | #ifndef CLZ_DEFINED_VALUE_AT_ZERO |
7dba8395 RH |
1063 | #define CLZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) 0 |
1064 | #endif | |
f676971a | 1065 | #ifndef CTZ_DEFINED_VALUE_AT_ZERO |
7dba8395 RH |
1066 | #define CTZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) 0 |
1067 | #endif | |
1068 | ||
06f31100 RS |
1069 | /* Provide a default value for STORE_FLAG_VALUE. */ |
1070 | #ifndef STORE_FLAG_VALUE | |
1071 | #define STORE_FLAG_VALUE 1 | |
1072 | #endif | |
1073 | ||
436bcda1 GK |
1074 | /* This macro is used to determine what the largest unit size that |
1075 | move_by_pieces can use is. */ | |
1076 | ||
1077 | /* MOVE_MAX_PIECES is the number of bytes at a time which we can | |
1078 | move efficiently, as opposed to MOVE_MAX which is the maximum | |
1079 | number of bytes we can move with a single instruction. */ | |
1080 | ||
1081 | #ifndef MOVE_MAX_PIECES | |
1082 | #define MOVE_MAX_PIECES MOVE_MAX | |
1083 | #endif | |
1084 | ||
bcbaaba1 RS |
1085 | #ifndef MAX_MOVE_MAX |
1086 | #define MAX_MOVE_MAX MOVE_MAX | |
1087 | #endif | |
1088 | ||
1089 | #ifndef MIN_UNITS_PER_WORD | |
1090 | #define MIN_UNITS_PER_WORD UNITS_PER_WORD | |
1091 | #endif | |
1092 | ||
d1465187 RS |
1093 | #ifndef MAX_BITS_PER_WORD |
1094 | #define MAX_BITS_PER_WORD BITS_PER_WORD | |
1095 | #endif | |
1096 | ||
a594a19c GK |
1097 | #ifndef STACK_POINTER_OFFSET |
1098 | #define STACK_POINTER_OFFSET 0 | |
1099 | #endif | |
1100 | ||
cca8fb0e KH |
1101 | #ifndef LOCAL_REGNO |
1102 | #define LOCAL_REGNO(REGNO) 0 | |
1103 | #endif | |
1104 | ||
9d05bbce KH |
1105 | /* EXIT_IGNORE_STACK should be nonzero if, when returning from a function, |
1106 | the stack pointer does not matter. The value is tested only in | |
1107 | functions that have frame pointers. */ | |
1108 | #ifndef EXIT_IGNORE_STACK | |
1109 | #define EXIT_IGNORE_STACK 0 | |
1110 | #endif | |
1111 | ||
0ede749d KH |
1112 | /* Assume that case vectors are not pc-relative. */ |
1113 | #ifndef CASE_VECTOR_PC_RELATIVE | |
1114 | #define CASE_VECTOR_PC_RELATIVE 0 | |
1115 | #endif | |
1116 | ||
6de9cd9a DN |
1117 | /* Assume that trampolines need function alignment. */ |
1118 | #ifndef TRAMPOLINE_ALIGNMENT | |
1119 | #define TRAMPOLINE_ALIGNMENT FUNCTION_BOUNDARY | |
1120 | #endif | |
1121 | ||
d220de0e KH |
1122 | /* Register mappings for target machines without register windows. */ |
1123 | #ifndef INCOMING_REGNO | |
1124 | #define INCOMING_REGNO(N) (N) | |
1125 | #endif | |
1126 | ||
1127 | #ifndef OUTGOING_REGNO | |
1128 | #define OUTGOING_REGNO(N) (N) | |
1129 | #endif | |
1130 | ||
bee07d3f KH |
1131 | #ifndef SHIFT_COUNT_TRUNCATED |
1132 | #define SHIFT_COUNT_TRUNCATED 0 | |
1133 | #endif | |
1134 | ||
2e4e72b1 ZW |
1135 | #ifndef LEGITIMATE_PIC_OPERAND_P |
1136 | #define LEGITIMATE_PIC_OPERAND_P(X) 1 | |
1137 | #endif | |
1138 | ||
a4edaf83 AK |
1139 | #ifndef TARGET_MEM_CONSTRAINT |
1140 | #define TARGET_MEM_CONSTRAINT 'm' | |
1141 | #endif | |
1142 | ||
1f8551b2 KH |
1143 | #ifndef REVERSIBLE_CC_MODE |
1144 | #define REVERSIBLE_CC_MODE(MODE) 0 | |
1145 | #endif | |
1146 | ||
07e15286 DE |
1147 | /* Biggest alignment supported by the object file format of this machine. */ |
1148 | #ifndef MAX_OFILE_ALIGNMENT | |
1149 | #define MAX_OFILE_ALIGNMENT BIGGEST_ALIGNMENT | |
1150 | #endif | |
1151 | ||
f62c8a5c JJ |
1152 | #ifndef FRAME_GROWS_DOWNWARD |
1153 | #define FRAME_GROWS_DOWNWARD 0 | |
1154 | #endif | |
1155 | ||
30e6f306 RH |
1156 | /* On most machines, the CFA coincides with the first incoming parm. */ |
1157 | #ifndef ARG_POINTER_CFA_OFFSET | |
d17c29c3 PB |
1158 | #define ARG_POINTER_CFA_OFFSET(FNDECL) \ |
1159 | (FIRST_PARM_OFFSET (FNDECL) + crtl->args.pretend_args_size) | |
30e6f306 RH |
1160 | #endif |
1161 | ||
35d177a2 AO |
1162 | /* On most machines, we use the CFA as DW_AT_frame_base. */ |
1163 | #ifndef CFA_FRAME_BASE_OFFSET | |
1164 | #define CFA_FRAME_BASE_OFFSET(FNDECL) 0 | |
1165 | #endif | |
1166 | ||
30e6f306 RH |
1167 | /* The offset from the incoming value of %sp to the top of the stack frame |
1168 | for the current function. */ | |
1169 | #ifndef INCOMING_FRAME_SP_OFFSET | |
1170 | #define INCOMING_FRAME_SP_OFFSET 0 | |
1171 | #endif | |
1172 | ||
8521c414 JM |
1173 | #ifndef HARD_REGNO_NREGS_HAS_PADDING |
1174 | #define HARD_REGNO_NREGS_HAS_PADDING(REGNO, MODE) 0 | |
1175 | #define HARD_REGNO_NREGS_WITH_PADDING(REGNO, MODE) -1 | |
1176 | #endif | |
1177 | ||
ac294f0b | 1178 | #ifndef OUTGOING_REG_PARM_STACK_SPACE |
81464b2c | 1179 | #define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 0 |
ac294f0b KT |
1180 | #endif |
1181 | ||
2e3f842f L |
1182 | /* MAX_STACK_ALIGNMENT is the maximum stack alignment guaranteed by |
1183 | the backend. MAX_SUPPORTED_STACK_ALIGNMENT is the maximum best | |
1184 | effort stack alignment supported by the backend. If the backend | |
1185 | supports stack alignment, MAX_SUPPORTED_STACK_ALIGNMENT and | |
1186 | MAX_STACK_ALIGNMENT are the same. Otherwise, the incoming stack | |
1187 | boundary will limit the maximum guaranteed stack alignment. */ | |
1188 | #ifdef MAX_STACK_ALIGNMENT | |
1189 | #define MAX_SUPPORTED_STACK_ALIGNMENT MAX_STACK_ALIGNMENT | |
1190 | #else | |
1191 | #define MAX_STACK_ALIGNMENT STACK_BOUNDARY | |
1192 | #define MAX_SUPPORTED_STACK_ALIGNMENT PREFERRED_STACK_BOUNDARY | |
1193 | #endif | |
1194 | ||
1195 | #define SUPPORTS_STACK_ALIGNMENT (MAX_STACK_ALIGNMENT > STACK_BOUNDARY) | |
1196 | ||
76fe54f0 L |
1197 | #ifndef LOCAL_ALIGNMENT |
1198 | #define LOCAL_ALIGNMENT(TYPE, ALIGNMENT) ALIGNMENT | |
1199 | #endif | |
1200 | ||
1201 | #ifndef STACK_SLOT_ALIGNMENT | |
1202 | #define STACK_SLOT_ALIGNMENT(TYPE,MODE,ALIGN) \ | |
1203 | ((TYPE) ? LOCAL_ALIGNMENT ((TYPE), (ALIGN)) : (ALIGN)) | |
1204 | #endif | |
1205 | ||
9bfaf89d JJ |
1206 | #ifndef LOCAL_DECL_ALIGNMENT |
1207 | #define LOCAL_DECL_ALIGNMENT(DECL) \ | |
1208 | LOCAL_ALIGNMENT (TREE_TYPE (DECL), DECL_ALIGN (DECL)) | |
1209 | #endif | |
1210 | ||
ae58e548 JJ |
1211 | #ifndef MINIMUM_ALIGNMENT |
1212 | #define MINIMUM_ALIGNMENT(EXP,MODE,ALIGN) (ALIGN) | |
1213 | #endif | |
1214 | ||
6e4f1168 L |
1215 | /* Alignment value for attribute ((aligned)). */ |
1216 | #ifndef ATTRIBUTE_ALIGNED_VALUE | |
1217 | #define ATTRIBUTE_ALIGNED_VALUE BIGGEST_ALIGNMENT | |
1218 | #endif | |
1219 | ||
3ad606bc PB |
1220 | /* Many ports have no mode-dependent addresses (except possibly autoincrement |
1221 | and autodecrement addresses, which are handled by target-independent code | |
1222 | in recog.c). */ | |
1223 | #ifndef GO_IF_MODE_DEPENDENT_ADDRESS | |
1224 | #define GO_IF_MODE_DEPENDENT_ADDRESS(X, WIN) | |
1225 | #endif | |
1226 | ||
4003023f NC |
1227 | /* For most ports anything that evaluates to a constant symbolic |
1228 | or integer value is acceptable as a constant address. */ | |
1229 | #ifndef CONSTANT_ADDRESS_P | |
1230 | #define CONSTANT_ADDRESS_P(X) (CONSTANT_P (X) && GET_CODE (X) != CONST_DOUBLE) | |
1231 | #endif | |
1232 | ||
1c314335 L |
1233 | #ifndef MAX_FIXED_MODE_SIZE |
1234 | #define MAX_FIXED_MODE_SIZE GET_MODE_BITSIZE (DImode) | |
1235 | #endif | |
1236 | ||
5498f011 JM |
1237 | /* Nonzero if structures and unions should be returned in memory. |
1238 | ||
1239 | This should only be defined if compatibility with another compiler or | |
1240 | with an ABI is needed, because it results in slower code. */ | |
1241 | ||
1242 | #ifndef DEFAULT_PCC_STRUCT_RETURN | |
1243 | #define DEFAULT_PCC_STRUCT_RETURN 1 | |
1244 | #endif | |
77ec4307 SB |
1245 | |
1246 | #ifdef GCC_INSN_FLAGS_H | |
1247 | /* Dependent default target macro definitions | |
1248 | ||
1249 | This section of defaults.h defines target macros that depend on generated | |
1250 | headers. This is a bit awkward: We want to put all default definitions | |
1251 | for target macros in defaults.h, but some of the defaults depend on the | |
1252 | HAVE_* flags defines of insn-flags.h. But insn-flags.h is not always | |
1253 | included by files that do include defaults.h. | |
1254 | ||
1255 | Fortunately, the default macro definitions that depend on the HAVE_* | |
1256 | macros are also the ones that will only be used inside GCC itself, i.e. | |
1257 | not in the gen* programs or in target objects like libgcc. | |
1258 | ||
1259 | Obviously, it would be best to keep this section of defaults.h as small | |
1260 | as possible, by converting the macros defined below to target hooks or | |
1261 | functions. | |
1262 | */ | |
1263 | ||
77ec4307 SB |
1264 | /* The default branch cost is 1. */ |
1265 | #ifndef BRANCH_COST | |
1266 | #define BRANCH_COST(speed_p, predictable_p) 1 | |
1267 | #endif | |
1268 | ||
1269 | /* If a memory-to-memory move would take MOVE_RATIO or more simple | |
1270 | move-instruction sequences, we will do a movmem or libcall instead. */ | |
1271 | ||
1272 | #ifndef MOVE_RATIO | |
1273 | #if defined (HAVE_movmemqi) || defined (HAVE_movmemhi) || defined (HAVE_movmemsi) || defined (HAVE_movmemdi) || defined (HAVE_movmemti) | |
1274 | #define MOVE_RATIO(speed) 2 | |
1275 | #else | |
1276 | /* If we are optimizing for space (-Os), cut down the default move ratio. */ | |
1277 | #define MOVE_RATIO(speed) ((speed) ? 15 : 3) | |
1278 | #endif | |
1279 | #endif | |
1280 | ||
1281 | /* If a clear memory operation would take CLEAR_RATIO or more simple | |
1282 | move-instruction sequences, we will do a setmem or libcall instead. */ | |
1283 | ||
1284 | #ifndef CLEAR_RATIO | |
1285 | #if defined (HAVE_setmemqi) || defined (HAVE_setmemhi) || defined (HAVE_setmemsi) || defined (HAVE_setmemdi) || defined (HAVE_setmemti) | |
1286 | #define CLEAR_RATIO(speed) 2 | |
1287 | #else | |
1288 | /* If we are optimizing for space, cut down the default clear ratio. */ | |
1289 | #define CLEAR_RATIO(speed) ((speed) ? 15 :3) | |
1290 | #endif | |
1291 | #endif | |
1292 | ||
1293 | /* If a memory set (to value other than zero) operation would take | |
1294 | SET_RATIO or more simple move-instruction sequences, we will do a movmem | |
1295 | or libcall instead. */ | |
1296 | #ifndef SET_RATIO | |
1297 | #define SET_RATIO(speed) MOVE_RATIO(speed) | |
1298 | #endif | |
1299 | ||
1300 | /* Supply a default definition for FUNCTION_ARG_PADDING: | |
1301 | usually pad upward, but pad short args downward on | |
1302 | big-endian machines. */ | |
1303 | ||
1304 | #define DEFAULT_FUNCTION_ARG_PADDING(MODE, TYPE) \ | |
1305 | (! BYTES_BIG_ENDIAN \ | |
1306 | ? upward \ | |
1307 | : (((MODE) == BLKmode \ | |
1308 | ? ((TYPE) && TREE_CODE (TYPE_SIZE (TYPE)) == INTEGER_CST \ | |
1309 | && int_size_in_bytes (TYPE) < (PARM_BOUNDARY / BITS_PER_UNIT)) \ | |
1310 | : GET_MODE_BITSIZE (MODE) < PARM_BOUNDARY) \ | |
1311 | ? downward : upward)) | |
1312 | ||
1313 | #ifndef FUNCTION_ARG_PADDING | |
1314 | #define FUNCTION_ARG_PADDING(MODE, TYPE) \ | |
1315 | DEFAULT_FUNCTION_ARG_PADDING ((MODE), (TYPE)) | |
1316 | #endif | |
1317 | ||
77ec4307 SB |
1318 | /* Supply a default definition of STACK_SAVEAREA_MODE for emit_stack_save. |
1319 | Normally move_insn, so Pmode stack pointer. */ | |
1320 | ||
1321 | #ifndef STACK_SAVEAREA_MODE | |
1322 | #define STACK_SAVEAREA_MODE(LEVEL) Pmode | |
1323 | #endif | |
1324 | ||
1325 | /* Supply a default definition of STACK_SIZE_MODE for | |
1326 | allocate_dynamic_stack_space. Normally PLUS/MINUS, so word_mode. */ | |
1327 | ||
1328 | #ifndef STACK_SIZE_MODE | |
1329 | #define STACK_SIZE_MODE word_mode | |
1330 | #endif | |
1331 | ||
1332 | /* Provide default values for the macros controlling stack checking. */ | |
1333 | ||
1334 | /* The default is neither full builtin stack checking... */ | |
1335 | #ifndef STACK_CHECK_BUILTIN | |
1336 | #define STACK_CHECK_BUILTIN 0 | |
1337 | #endif | |
1338 | ||
1339 | /* ...nor static builtin stack checking. */ | |
1340 | #ifndef STACK_CHECK_STATIC_BUILTIN | |
1341 | #define STACK_CHECK_STATIC_BUILTIN 0 | |
1342 | #endif | |
1343 | ||
1344 | /* The default interval is one page (4096 bytes). */ | |
1345 | #ifndef STACK_CHECK_PROBE_INTERVAL_EXP | |
1346 | #define STACK_CHECK_PROBE_INTERVAL_EXP 12 | |
1347 | #endif | |
1348 | ||
1349 | /* The default is not to move the stack pointer. */ | |
1350 | #ifndef STACK_CHECK_MOVING_SP | |
1351 | #define STACK_CHECK_MOVING_SP 0 | |
1352 | #endif | |
1353 | ||
1354 | /* This is a kludge to try to capture the discrepancy between the old | |
1355 | mechanism (generic stack checking) and the new mechanism (static | |
1356 | builtin stack checking). STACK_CHECK_PROTECT needs to be bumped | |
1357 | for the latter because part of the protection area is effectively | |
1358 | included in STACK_CHECK_MAX_FRAME_SIZE for the former. */ | |
1359 | #ifdef STACK_CHECK_PROTECT | |
1360 | #define STACK_OLD_CHECK_PROTECT STACK_CHECK_PROTECT | |
1361 | #else | |
677f3fa8 JM |
1362 | #define STACK_OLD_CHECK_PROTECT \ |
1363 | (targetm_common.except_unwind_info (&global_options) == UI_SJLJ \ | |
1364 | ? 75 * UNITS_PER_WORD \ | |
d5fabb58 | 1365 | : 8 * 1024) |
77ec4307 SB |
1366 | #endif |
1367 | ||
1368 | /* Minimum amount of stack required to recover from an anticipated stack | |
1369 | overflow detection. The default value conveys an estimate of the amount | |
1370 | of stack required to propagate an exception. */ | |
1371 | #ifndef STACK_CHECK_PROTECT | |
677f3fa8 JM |
1372 | #define STACK_CHECK_PROTECT \ |
1373 | (targetm_common.except_unwind_info (&global_options) == UI_SJLJ \ | |
1374 | ? 75 * UNITS_PER_WORD \ | |
d5fabb58 | 1375 | : 12 * 1024) |
77ec4307 SB |
1376 | #endif |
1377 | ||
1378 | /* Make the maximum frame size be the largest we can and still only need | |
1379 | one probe per function. */ | |
1380 | #ifndef STACK_CHECK_MAX_FRAME_SIZE | |
1381 | #define STACK_CHECK_MAX_FRAME_SIZE \ | |
1382 | ((1 << STACK_CHECK_PROBE_INTERVAL_EXP) - UNITS_PER_WORD) | |
1383 | #endif | |
1384 | ||
1385 | /* This is arbitrary, but should be large enough everywhere. */ | |
1386 | #ifndef STACK_CHECK_FIXED_FRAME_SIZE | |
1387 | #define STACK_CHECK_FIXED_FRAME_SIZE (4 * UNITS_PER_WORD) | |
1388 | #endif | |
1389 | ||
1390 | /* Provide a reasonable default for the maximum size of an object to | |
1391 | allocate in the fixed frame. We may need to be able to make this | |
1392 | controllable by the user at some point. */ | |
1393 | #ifndef STACK_CHECK_MAX_VAR_SIZE | |
1394 | #define STACK_CHECK_MAX_VAR_SIZE (STACK_CHECK_MAX_FRAME_SIZE / 100) | |
1395 | #endif | |
1396 | ||
7894073c SE |
1397 | /* By default, the C++ compiler will use function addresses in the |
1398 | vtable entries. Setting this nonzero tells the compiler to use | |
1399 | function descriptors instead. The value of this macro says how | |
1400 | many words wide the descriptor is (normally 2). It is assumed | |
1401 | that the address of a function descriptor may be treated as a | |
1402 | pointer to a function. */ | |
1403 | #ifndef TARGET_VTABLE_USES_DESCRIPTORS | |
1404 | #define TARGET_VTABLE_USES_DESCRIPTORS 0 | |
1405 | #endif | |
1406 | ||
3bd36029 RS |
1407 | #ifndef SWITCHABLE_TARGET |
1408 | #define SWITCHABLE_TARGET 0 | |
1409 | #endif | |
1410 | ||
77ec4307 SB |
1411 | #endif /* GCC_INSN_FLAGS_H */ |
1412 | ||
88657302 | 1413 | #endif /* ! GCC_DEFAULTS_H */ |