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* hooks.c (hook_tree_bool_false): New.
[official-gcc.git] / gcc / config / rs6000 / sysv4.h
blob2eff24c97621e61657027f0febf739533c27f90b
1 /* Target definitions for GNU compiler for PowerPC running System V.4
2 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Support.
5
6 This file is part of GNU CC.
7
8 GNU CC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
11 any later version.
12
13 GNU CC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with GNU CC; see the file COPYING. If not, write to
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
22
23
24 /* Yes! We are ELF. */
25 #define TARGET_OBJECT_FORMAT OBJECT_ELF
26
27 /* Default ABI to compile code for. */
28 #define DEFAULT_ABI rs6000_current_abi
29
30 /* Default ABI to use. */
31 #define RS6000_ABI_NAME "sysv"
32
33 /* Override rs6000.h definition. */
34 #undef ASM_DEFAULT_SPEC
35 #define ASM_DEFAULT_SPEC "-mppc"
36
37 /* Override rs6000.h definition. */
38 #undef CPP_DEFAULT_SPEC
39 #define CPP_DEFAULT_SPEC "-D_ARCH_PPC"
40
41 /* Small data support types. */
42 enum rs6000_sdata_type {
43 SDATA_NONE, /* No small data support. */
44 SDATA_DATA, /* Just put data in .sbss/.sdata, don't use relocs. */
45 SDATA_SYSV, /* Use r13 to point to .sdata/.sbss. */
46 SDATA_EABI /* Use r13 like above, r2 points to .sdata2/.sbss2. */
47 };
48
49 extern enum rs6000_sdata_type rs6000_sdata;
50
51 /* V.4/eabi switches. */
52 #define MASK_NO_BITFIELD_TYPE 0x40000000 /* Set PCC_BITFIELD_TYPE_MATTERS to 0. */
53 #define MASK_STRICT_ALIGN 0x20000000 /* Set STRICT_ALIGNMENT to 1. */
54 #define MASK_RELOCATABLE 0x10000000 /* GOT pointers are PC relative. */
55 #define MASK_EABI 0x08000000 /* Adhere to eabi, not System V spec. */
56 #define MASK_LITTLE_ENDIAN 0x04000000 /* Target is little endian. */
57 #define MASK_REGNAMES 0x02000000 /* Use alternate register names. */
58 #define MASK_PROTOTYPE 0x01000000 /* Only prototyped fcns pass variable args. */
59 #define MASK_NO_BITFIELD_WORD 0x00800000 /* Bitfields cannot cross word boundaries */
60
61 #define TARGET_NO_BITFIELD_TYPE (target_flags & MASK_NO_BITFIELD_TYPE)
62 #define TARGET_STRICT_ALIGN (target_flags & MASK_STRICT_ALIGN)
63 #define TARGET_RELOCATABLE (target_flags & MASK_RELOCATABLE)
64 #define TARGET_EABI (target_flags & MASK_EABI)
65 #define TARGET_LITTLE_ENDIAN (target_flags & MASK_LITTLE_ENDIAN)
66 #define TARGET_REGNAMES (target_flags & MASK_REGNAMES)
67 #define TARGET_PROTOTYPE (target_flags & MASK_PROTOTYPE)
68 #define TARGET_NO_BITFIELD_WORD (target_flags & MASK_NO_BITFIELD_WORD)
69 #define TARGET_TOC ((target_flags & MASK_64BIT) \
70 || ((target_flags & (MASK_RELOCATABLE \
71 | MASK_MINIMAL_TOC)) \
72 && flag_pic > 1) \
73 || DEFAULT_ABI == ABI_AIX)
74
75 #define TARGET_BITFIELD_TYPE (! TARGET_NO_BITFIELD_TYPE)
76 #define TARGET_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
77 #define TARGET_NO_PROTOTYPE (! TARGET_PROTOTYPE)
78 #define TARGET_NO_TOC (! TARGET_TOC)
79 #define TARGET_NO_EABI (! TARGET_EABI)
80
81 /* Strings provided by SUBTARGET_OPTIONS */
82 extern const char *rs6000_abi_name;
83 extern const char *rs6000_sdata_name;
84
85 /* Override rs6000.h definition. */
86 #undef SUBTARGET_OPTIONS
87 #define SUBTARGET_OPTIONS \
88 { "call-", &rs6000_abi_name, N_("Select ABI calling convention") }, \
89 { "sdata=", &rs6000_sdata_name, N_("Select method for sdata handling") }
90
91 /* Max # of bytes for variables to automatically be put into the .sdata
92 or .sdata2 sections. */
93 extern int g_switch_value; /* Value of the -G xx switch. */
94 extern int g_switch_set; /* Whether -G xx was passed. */
95
96 #define SDATA_DEFAULT_SIZE 8
97
98 /* Note, V.4 no longer uses a normal TOC, so make -mfull-toc, be just
99 the same as -mminimal-toc. */
100 /* Override rs6000.h definition. */
101 #undef SUBTARGET_SWITCHES
102 #define SUBTARGET_SWITCHES \
103 { "bit-align", -MASK_NO_BITFIELD_TYPE, \
104 N_("Align to the base type of the bit-field") }, \
105 { "no-bit-align", MASK_NO_BITFIELD_TYPE, \
106 N_("Don't align to the base type of the bit-field") }, \
107 { "strict-align", MASK_STRICT_ALIGN, \
108 N_("Don't assume that unaligned accesses are handled by the system") }, \
109 { "no-strict-align", -MASK_STRICT_ALIGN, \
110 N_("Assume that unaligned accesses are handled by the system") }, \
111 { "relocatable", MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
112 N_("Produce code relocatable at runtime") }, \
113 { "no-relocatable", -MASK_RELOCATABLE, \
114 N_("Don't produce code relocatable at runtime") }, \
115 { "relocatable-lib", MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
116 N_("Produce code relocatable at runtime") }, \
117 { "no-relocatable-lib", -MASK_RELOCATABLE, \
118 N_("Don't produce code relocatable at runtime") }, \
119 { "little-endian", MASK_LITTLE_ENDIAN, \
120 N_("Produce little endian code") }, \
121 { "little", MASK_LITTLE_ENDIAN, \
122 N_("Produce little endian code") }, \
123 { "big-endian", -MASK_LITTLE_ENDIAN, \
124 N_("Produce big endian code") }, \
125 { "big", -MASK_LITTLE_ENDIAN, \
126 N_("Produce big endian code") }, \
127 { "no-toc", 0, N_("no description yet") }, \
128 { "toc", MASK_MINIMAL_TOC, N_("no description yet") }, \
129 { "full-toc", MASK_MINIMAL_TOC, N_("no description yet") }, \
130 { "prototype", MASK_PROTOTYPE, N_("no description yet") }, \
131 { "no-prototype", -MASK_PROTOTYPE, N_("no description yet") }, \
132 { "no-traceback", 0, N_("no description yet") }, \
133 { "eabi", MASK_EABI, N_("Use EABI") }, \
134 { "no-eabi", -MASK_EABI, N_("Don't use EABI") }, \
135 { "bit-word", -MASK_NO_BITFIELD_WORD, "" }, \
136 { "no-bit-word", MASK_NO_BITFIELD_WORD, \
137 N_("Do not allow bit-fields to cross word boundaries") }, \
138 { "regnames", MASK_REGNAMES, \
139 N_("Use alternate register names") }, \
140 { "no-regnames", -MASK_REGNAMES, \
141 N_("Don't use alternate register names") }, \
142 { "sdata", 0, N_("no description yet") }, \
143 { "no-sdata", 0, N_("no description yet") }, \
144 { "sim", 0, \
145 N_("Link with libsim.a, libc.a and sim-crt0.o") }, \
146 { "ads", 0, \
147 N_("Link with libads.a, libc.a and crt0.o") }, \
148 { "yellowknife", 0, \
149 N_("Link with libyk.a, libc.a and crt0.o") }, \
150 { "mvme", 0, \
151 N_("Link with libmvme.a, libc.a and crt0.o") }, \
152 { "emb", 0, \
153 N_("Set the PPC_EMB bit in the ELF flags header") }, \
154 { "vxworks", 0, N_("no description yet") }, \
155 { "windiss", 0, N_("Use the WindISS simulator") }, \
156 { "shlib", 0, N_("no description yet") }, \
157 EXTRA_SUBTARGET_SWITCHES \
158 { "newlib", 0, N_("no description yet") },
159
160 /* This is meant to be redefined in the host dependent files. */
161 #define EXTRA_SUBTARGET_SWITCHES
162
163 /* Sometimes certain combinations of command options do not make sense
164 on a particular target machine. You can define a macro
165 `OVERRIDE_OPTIONS' to take account of this. This macro, if
166 defined, is executed once just after all the command options have
167 been parsed.
168
169 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
170 get control. */
171
172 #define SUBTARGET_OVERRIDE_OPTIONS \
173 do { \
174 if (!g_switch_set) \
175 g_switch_value = SDATA_DEFAULT_SIZE; \
176 \
177 if (!strcmp (rs6000_abi_name, "sysv")) \
178 rs6000_current_abi = ABI_V4; \
179 else if (!strcmp (rs6000_abi_name, "sysv-noeabi")) \
180 { \
181 rs6000_current_abi = ABI_V4; \
182 target_flags &= ~ MASK_EABI; \
183 } \
184 else if (!strcmp (rs6000_abi_name, "sysv-eabi") \
185 || !strcmp (rs6000_abi_name, "eabi")) \
186 { \
187 rs6000_current_abi = ABI_V4; \
188 target_flags |= MASK_EABI; \
189 } \
190 else if (!strcmp (rs6000_abi_name, "aix")) \
191 { \
192 rs6000_current_abi = ABI_AIX_NODESC; \
193 target_flags |= MASK_EABI; \
194 } \
195 else if (!strcmp (rs6000_abi_name, "aixdesc")) \
196 rs6000_current_abi = ABI_AIX; \
197 else if (!strcmp (rs6000_abi_name, "freebsd")) \
198 rs6000_current_abi = ABI_V4; \
199 else if (!strcmp (rs6000_abi_name, "linux")) \
200 rs6000_current_abi = ABI_V4; \
201 else if (!strcmp (rs6000_abi_name, "gnu")) \
202 rs6000_current_abi = ABI_V4; \
203 else if (!strcmp (rs6000_abi_name, "netbsd")) \
204 rs6000_current_abi = ABI_V4; \
205 else if (!strcmp (rs6000_abi_name, "i960-old")) \
206 { \
207 rs6000_current_abi = ABI_V4; \
208 target_flags |= (MASK_LITTLE_ENDIAN | MASK_EABI \
209 | MASK_NO_BITFIELD_WORD); \
210 target_flags &= ~MASK_STRICT_ALIGN; \
211 } \
212 else \
213 { \
214 rs6000_current_abi = ABI_V4; \
215 error ("bad value for -mcall-%s", rs6000_abi_name); \
216 } \
217 \
218 if (rs6000_sdata_name) \
219 { \
220 if (!strcmp (rs6000_sdata_name, "none")) \
221 rs6000_sdata = SDATA_NONE; \
222 else if (!strcmp (rs6000_sdata_name, "data")) \
223 rs6000_sdata = SDATA_DATA; \
224 else if (!strcmp (rs6000_sdata_name, "default")) \
225 rs6000_sdata = (TARGET_EABI) ? SDATA_EABI : SDATA_SYSV; \
226 else if (!strcmp (rs6000_sdata_name, "sysv")) \
227 rs6000_sdata = SDATA_SYSV; \
228 else if (!strcmp (rs6000_sdata_name, "eabi")) \
229 rs6000_sdata = SDATA_EABI; \
230 else \
231 error ("bad value for -msdata=%s", rs6000_sdata_name); \
232 } \
233 else if (DEFAULT_ABI == ABI_V4) \
234 { \
235 rs6000_sdata = SDATA_DATA; \
236 rs6000_sdata_name = "data"; \
237 } \
238 else \
239 { \
240 rs6000_sdata = SDATA_NONE; \
241 rs6000_sdata_name = "none"; \
242 } \
243 \
244 if (TARGET_RELOCATABLE && \
245 (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV)) \
246 { \
247 rs6000_sdata = SDATA_DATA; \
248 error ("-mrelocatable and -msdata=%s are incompatible", \
249 rs6000_sdata_name); \
250 } \
251 \
252 else if (flag_pic && \
253 (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV)) \
254 { \
255 rs6000_sdata = SDATA_DATA; \
256 error ("-f%s and -msdata=%s are incompatible", \
257 (flag_pic > 1) ? "PIC" : "pic", \
258 rs6000_sdata_name); \
259 } \
260 \
261 if (rs6000_sdata != SDATA_NONE && DEFAULT_ABI != ABI_V4) \
262 { \
263 rs6000_sdata = SDATA_NONE; \
264 error ("-msdata=%s and -mcall-%s are incompatible", \
265 rs6000_sdata_name, rs6000_abi_name); \
266 } \
267 \
268 if (TARGET_RELOCATABLE && !TARGET_MINIMAL_TOC) \
269 { \
270 target_flags |= MASK_MINIMAL_TOC; \
271 error ("-mrelocatable and -mno-minimal-toc are incompatible"); \
272 } \
273 \
274 if (TARGET_RELOCATABLE && rs6000_current_abi == ABI_AIX) \
275 { \
276 target_flags &= ~MASK_RELOCATABLE; \
277 error ("-mrelocatable and -mcall-%s are incompatible", \
278 rs6000_abi_name); \
279 } \
280 \
281 if (flag_pic > 1 && rs6000_current_abi == ABI_AIX) \
282 { \
283 flag_pic = 0; \
284 error ("-fPIC and -mcall-%s are incompatible", \
285 rs6000_abi_name); \
286 } \
287 \
288 if (rs6000_current_abi == ABI_AIX && TARGET_LITTLE_ENDIAN) \
289 { \
290 target_flags &= ~MASK_LITTLE_ENDIAN; \
291 error ("-mcall-aixdesc must be big endian"); \
292 } \
293 \
294 /* Treat -fPIC the same as -mrelocatable. */ \
295 if (flag_pic > 1) \
296 target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC; \
297 \
298 else if (TARGET_RELOCATABLE) \
299 flag_pic = 2; \
300 \
301 } while (0)
302
303
304 /* Override rs6000.h definition. */
305 #undef TARGET_DEFAULT
306 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
307
308 /* Override rs6000.h definition. */
309 #undef PROCESSOR_DEFAULT
310 #define PROCESSOR_DEFAULT PROCESSOR_PPC750
311
312 #define FIXED_R2 1
313 /* System V.4 uses register 13 as a pointer to the small data area,
314 so it is not available to the normal user. */
315 #define FIXED_R13 1
316
317 /* Size of the V.4 varargs area if needed. */
318 /* Override rs6000.h definition. */
319 #undef RS6000_VARARGS_AREA
320 #define RS6000_VARARGS_AREA ((cfun->machine->sysv_varargs_p) ? RS6000_VARARGS_SIZE : 0)
321
322 /* Override default big endianism definitions in rs6000.h. */
323 #undef BYTES_BIG_ENDIAN
324 #undef WORDS_BIG_ENDIAN
325 #define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN)
326 #define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN)
327
328 /* Define this to set the endianness to use in libgcc2.c, which can
329 not depend on target_flags. */
330 #if !defined(_LITTLE_ENDIAN) && !defined(__sun__)
331 #define LIBGCC2_WORDS_BIG_ENDIAN 1
332 #else
333 #define LIBGCC2_WORDS_BIG_ENDIAN 0
334 #endif
335
336 /* Define cutoff for using external functions to save floating point.
337 Currently on V.4, always use inline stores. */
338 #define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64)
339
340 /* Put jump tables in read-only memory, rather than in .text. */
341 #define JUMP_TABLES_IN_TEXT_SECTION 0
342
343 /* Prefix and suffix to use to saving floating point. */
344 #define SAVE_FP_PREFIX "_savefpr_"
345 #define SAVE_FP_SUFFIX "_l"
346
347 /* Prefix and suffix to use to restoring floating point. */
348 #define RESTORE_FP_PREFIX "_restfpr_"
349 #define RESTORE_FP_SUFFIX "_l"
350
351 /* Type used for ptrdiff_t, as a string used in a declaration. */
352 #define PTRDIFF_TYPE "int"
353
354 /* Type used for wchar_t, as a string used in a declaration. */
355 /* Override svr4.h definition. */
356 #undef WCHAR_TYPE
357 #define WCHAR_TYPE "long int"
358
359 /* Width of wchar_t in bits. */
360 /* Override svr4.h definition. */
361 #undef WCHAR_TYPE_SIZE
362 #define WCHAR_TYPE_SIZE 32
363
364 /* Make int foo : 8 not cause structures to be aligned to an int boundary. */
365 /* Override elfos.h definition. */
366 #undef PCC_BITFIELD_TYPE_MATTERS
367 #define PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE)
368
369 #undef BITFIELD_NBYTES_LIMITED
370 #define BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD)
371
372 /* Define this macro to be the value 1 if instructions will fail to
373 work if given data not on the nominal alignment. If instructions
374 will merely go slower in that case, define this macro as 0. */
375 #undef STRICT_ALIGNMENT
376 #define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN)
377
378 /* Alignment in bits of the stack boundary. Note, in order to allow building
379 one set of libraries with -mno-eabi instead of eabi libraries and non-eabi
380 versions, just use 64 as the stack boundary. */
381 #undef STACK_BOUNDARY
382 #define STACK_BOUNDARY (TARGET_ALTIVEC_ABI ? 128 : 64)
383
384 /* Real stack boundary as mandated by the appropriate ABI. */
385 #define ABI_STACK_BOUNDARY ((TARGET_EABI && !TARGET_ALTIVEC_ABI) ? 64 : 128)
386
387 /* An expression for the alignment of a structure field FIELD if the
388 alignment computed in the usual way is COMPUTED. */
389 #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
390 ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \
391 ? 128 : COMPUTED)
392
393 /* Define this macro as an expression for the alignment of a type
394 (given by TYPE as a tree node) if the alignment computed in the
395 usual way is COMPUTED and the alignment explicitly specified was
396 SPECIFIED. */
397 #define ROUND_TYPE_ALIGN(TYPE, COMPUTED, SPECIFIED) \
398 ((TARGET_ALTIVEC && TREE_CODE (TYPE) == VECTOR_TYPE) \
399 ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128) \
400 : MAX (COMPUTED, SPECIFIED))
401
402 #undef BIGGEST_FIELD_ALIGNMENT
403 #undef ADJUST_FIELD_ALIGN
404
405 /* Use ELF style section commands. */
406
407 #define TEXT_SECTION_ASM_OP "\t.section\t\".text\""
408
409 #define DATA_SECTION_ASM_OP "\t.section\t\".data\""
410
411 #define BSS_SECTION_ASM_OP "\t.section\t\".bss\""
412
413 /* Override elfos.h definition. */
414 #undef INIT_SECTION_ASM_OP
415 #define INIT_SECTION_ASM_OP "\t.section\t\".init\",\"ax\""
416
417 /* Override elfos.h definition. */
418 #undef FINI_SECTION_ASM_OP
419 #define FINI_SECTION_ASM_OP "\t.section\t\".fini\",\"ax\""
420
421 #define TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\""
422
423 /* Put PC relative got entries in .got2. */
424 #define MINIMAL_TOC_SECTION_ASM_OP \
425 ((TARGET_RELOCATABLE || flag_pic) ? "\t.section\t\".got2\",\"aw\"" : "\t.section\t\".got1\",\"aw\"")
426
427 #define SDATA_SECTION_ASM_OP "\t.section\t\".sdata\",\"aw\""
428 #define SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\""
429 #define SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits"
430
431 /* Besides the usual ELF sections, we need a toc section. */
432 /* Override elfos.h definition. */
433 #undef EXTRA_SECTIONS
434 #define EXTRA_SECTIONS in_const, in_toc, in_sdata, in_sdata2, in_sbss, in_init, in_fini
435
436 /* Override elfos.h definition. */
437 #undef EXTRA_SECTION_FUNCTIONS
438 #define EXTRA_SECTION_FUNCTIONS \
439 CONST_SECTION_FUNCTION \
440 TOC_SECTION_FUNCTION \
441 SDATA_SECTION_FUNCTION \
442 SDATA2_SECTION_FUNCTION \
443 SBSS_SECTION_FUNCTION \
444 INIT_SECTION_FUNCTION \
445 FINI_SECTION_FUNCTION
446
447 #define TOC_SECTION_FUNCTION \
448 void \
449 toc_section () \
450 { \
451 if (in_section != in_toc) \
452 { \
453 in_section = in_toc; \
454 if (DEFAULT_ABI == ABI_AIX \
455 && TARGET_MINIMAL_TOC \
456 && !TARGET_RELOCATABLE) \
457 { \
458 if (! toc_initialized) \
459 { \
460 toc_initialized = 1; \
461 fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \
462 ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, "LCTOC", 0); \
463 fprintf (asm_out_file, "\t.tc "); \
464 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1[TC],"); \
465 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
466 fprintf (asm_out_file, "\n"); \
467 \
468 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
469 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
470 fprintf (asm_out_file, " = .+32768\n"); \
471 } \
472 else \
473 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
474 } \
475 else if (DEFAULT_ABI == ABI_AIX && !TARGET_RELOCATABLE) \
476 fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \
477 else \
478 { \
479 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
480 if (! toc_initialized) \
481 { \
482 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
483 fprintf (asm_out_file, " = .+32768\n"); \
484 toc_initialized = 1; \
485 } \
486 } \
487 } \
488 } \
489 \
490 extern int in_toc_section PARAMS ((void)); \
491 int in_toc_section () \
492 { \
493 return in_section == in_toc; \
494 }
495
496 #define SDATA_SECTION_FUNCTION \
497 void \
498 sdata_section () \
499 { \
500 if (in_section != in_sdata) \
501 { \
502 in_section = in_sdata; \
503 fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \
504 } \
505 }
506
507 #define SDATA2_SECTION_FUNCTION \
508 void \
509 sdata2_section () \
510 { \
511 if (in_section != in_sdata2) \
512 { \
513 in_section = in_sdata2; \
514 fprintf (asm_out_file, "%s\n", SDATA2_SECTION_ASM_OP); \
515 } \
516 }
517
518 #define SBSS_SECTION_FUNCTION \
519 void \
520 sbss_section () \
521 { \
522 if (in_section != in_sbss) \
523 { \
524 in_section = in_sbss; \
525 fprintf (asm_out_file, "%s\n", SBSS_SECTION_ASM_OP); \
526 } \
527 }
528
529 #define INIT_SECTION_FUNCTION \
530 void \
531 init_section () \
532 { \
533 if (in_section != in_init) \
534 { \
535 in_section = in_init; \
536 fprintf (asm_out_file, "%s\n", INIT_SECTION_ASM_OP); \
537 } \
538 }
539
540 #define FINI_SECTION_FUNCTION \
541 void \
542 fini_section () \
543 { \
544 if (in_section != in_fini) \
545 { \
546 in_section = in_fini; \
547 fprintf (asm_out_file, "%s\n", FINI_SECTION_ASM_OP); \
548 } \
549 }
550
551 /* A C statement or statements to switch to the appropriate section
552 for output of RTX in mode MODE. You can assume that RTX is some
553 kind of constant in RTL. The argument MODE is redundant except in
554 the case of a `const_int' rtx. Select the section by calling
555 `text_section' or one of the alternatives for other sections.
556
557 Do not define this macro if you put all constants in the read-only
558 data section. */
559
560 /* Override elfos.h definition. */
561 #undef SELECT_RTX_SECTION
562 #define SELECT_RTX_SECTION(MODE, X, ALIGN) rs6000_select_rtx_section (MODE, X)
563
564 /* A C statement or statements to switch to the appropriate
565 section for output of DECL. DECL is either a `VAR_DECL' node
566 or a constant of some sort. RELOC indicates whether forming
567 the initial value of DECL requires link-time relocations. */
568
569 /* Override elfos.h definition. */
570 #undef TARGET_ASM_SELECT_SECTION
571 #define TARGET_ASM_SELECT_SECTION rs6000_elf_select_section
572
573 /* A C statement to build up a unique section name, expressed as a
574 STRING_CST node, and assign it to DECL_SECTION_NAME (decl).
575 RELOC indicates whether the initial value of EXP requires
576 link-time relocations. If you do not define this macro, GCC will use
577 the symbol name prefixed by `.' as the section name. Note - this
578 macro can now be called for uninitialized data items as well as
579 initialised data and functions. */
580
581 /* Override default elf definition. */
582 #define TARGET_ASM_UNIQUE_SECTION rs6000_elf_unique_section
583
584 /* Return non-zero if this entry is to be written into the constant pool
585 in a special way. We do so if this is a SYMBOL_REF, LABEL_REF or a CONST
586 containing one of them. If -mfp-in-toc (the default), we also do
587 this for floating-point constants. We actually can only do this
588 if the FP formats of the target and host machines are the same, but
589 we can't check that since not every file that uses
590 GO_IF_LEGITIMATE_ADDRESS_P includes real.h.
591
592 Unlike AIX, we don't key off of -mminimal-toc, but instead do not
593 allow floating point constants in the TOC if -mrelocatable. */
594
595 #undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
596 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \
597 (TARGET_TOC \
598 && (GET_CODE (X) == SYMBOL_REF \
599 || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \
600 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \
601 || GET_CODE (X) == LABEL_REF \
602 || (GET_CODE (X) == CONST_INT \
603 && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \
604 || (!TARGET_NO_FP_IN_TOC \
605 && !TARGET_RELOCATABLE \
606 && GET_CODE (X) == CONST_DOUBLE \
607 && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
608 && BITS_PER_WORD == HOST_BITS_PER_INT)))
609
610 /* These macros generate the special .type and .size directives which
611 are used to set the corresponding fields of the linker symbol table
612 entries in an ELF object file under SVR4. These macros also output
613 the starting labels for the relevant functions/objects. */
614
615 /* Write the extra assembler code needed to declare a function properly.
616 Some svr4 assemblers need to also have something extra said about the
617 function's return value. We allow for that here. */
618
619 extern int rs6000_pic_labelno;
620
621 /* Override elfos.h definition. */
622 #undef ASM_DECLARE_FUNCTION_NAME
623 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
624 do { \
625 const char *const init_ptr = (TARGET_64BIT) ? ".quad" : ".long"; \
626 \
627 if (TARGET_RELOCATABLE \
628 && (get_pool_size () != 0 || current_function_profile) \
629 && uses_TOC()) \
630 { \
631 char buf[256]; \
632 \
633 ASM_OUTPUT_INTERNAL_LABEL (FILE, "LCL", rs6000_pic_labelno); \
634 \
635 ASM_GENERATE_INTERNAL_LABEL (buf, "LCTOC", 1); \
636 fprintf (FILE, "\t%s ", init_ptr); \
637 assemble_name (FILE, buf); \
638 putc ('-', FILE); \
639 ASM_GENERATE_INTERNAL_LABEL (buf, "LCF", rs6000_pic_labelno); \
640 assemble_name (FILE, buf); \
641 putc ('\n', FILE); \
642 } \
643 \
644 fprintf (FILE, "%s", TYPE_ASM_OP); \
645 assemble_name (FILE, NAME); \
646 putc (',', FILE); \
647 fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
648 putc ('\n', FILE); \
649 ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
650 \
651 if (DEFAULT_ABI == ABI_AIX) \
652 { \
653 const char *desc_name, *orig_name; \
654 \
655 STRIP_NAME_ENCODING (orig_name, NAME); \
656 desc_name = orig_name; \
657 while (*desc_name == '.') \
658 desc_name++; \
659 \
660 if (TREE_PUBLIC (DECL)) \
661 fprintf (FILE, "\t.globl %s\n", desc_name); \
662 \
663 fprintf (FILE, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
664 fprintf (FILE, "%s:\n", desc_name); \
665 fprintf (FILE, "\t%s %s\n", init_ptr, orig_name); \
666 fprintf (FILE, "\t%s _GLOBAL_OFFSET_TABLE_\n", init_ptr); \
667 if (DEFAULT_ABI == ABI_AIX) \
668 fprintf (FILE, "\t%s 0\n", init_ptr); \
669 fprintf (FILE, "\t.previous\n"); \
670 } \
671 ASM_OUTPUT_LABEL (FILE, NAME); \
672 } while (0)
673
674 /* A C compound statement that outputs the assembler code for a thunk function,
675 used to implement C++ virtual function calls with multiple inheritance. The
676 thunk acts as a wrapper around a virtual function, adjusting the implicit
677 object parameter before handing control off to the real function.
678
679 First, emit code to add the integer DELTA to the location that contains the
680 incoming first argument. Assume that this argument contains a pointer, and
681 is the one used to pass the this' pointer in C++. This is the incoming
682 argument *before* the function prologue, e.g. %o0' on a sparc. The
683 addition must preserve the values of all other incoming arguments.
684
685 After the addition, emit code to jump to FUNCTION, which is a
686 FUNCTION_DECL'. This is a direct pure jump, not a call, and does not touch
687 the return address. Hence returning from FUNCTION will return to whoever
688 called the current thunk'.
689
690 The effect must be as if FUNCTION had been called directly with the adjusted
691 first argument. This macro is responsible for emitting all of the code for
692 a thunk function; FUNCTION_PROLOGUE' and FUNCTION_EPILOGUE' are not
693 invoked.
694
695 The THUNK_FNDECL is redundant. (DELTA and FUNCTION have already been
696 extracted from it.) It might possibly be useful on some targets, but
697 probably not.
698
699 If you do not define this macro, the target-independent code in the C++
700 frontend will generate a less efficient heavyweight thunk that calls
701 FUNCTION instead of jumping to it. The generic approach does not support
702 varargs. */
703
704 #define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) \
705 output_mi_thunk (FILE, THUNK_FNDECL, DELTA, FUNCTION)
706
707 /* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore
708 flag. The LOCAL_LABEL_PREFIX variable is used by dbxelf.h. */
709
710 #define LOCAL_LABEL_PREFIX "."
711 #define USER_LABEL_PREFIX ""
712
713 /* svr4.h overrides ASM_OUTPUT_INTERNAL_LABEL. */
714
715 #define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \
716 asm_fprintf (FILE, "%L%s", PREFIX)
717
718 #define ASM_OUTPUT_LABEL(FILE,NAME) \
719 (assemble_name (FILE, NAME), fputs (":\n", FILE))
720
721 /* This is how to output a command to make the user-level label named NAME
722 defined for reference from other files. */
723
724 #define ASM_GLOBALIZE_LABEL(FILE,NAME) \
725 do { fputs ("\t.globl ", FILE); \
726 assemble_name (FILE, NAME); putc ('\n', FILE);} while (0)
727
728 /* This says how to output assembler code to declare an
729 uninitialized internal linkage data object. Under SVR4,
730 the linker seems to want the alignment of data objects
731 to depend on their types. We do exactly that here. */
732
733 #define LOCAL_ASM_OP "\t.local\t"
734
735 #define LCOMM_ASM_OP "\t.lcomm\t"
736
737 /* Override elfos.h definition. */
738 #undef ASM_OUTPUT_ALIGNED_LOCAL
739 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
740 do { \
741 if (rs6000_sdata != SDATA_NONE && (SIZE) > 0 \
742 && (SIZE) <= g_switch_value) \
743 { \
744 sbss_section (); \
745 ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \
746 ASM_OUTPUT_LABEL (FILE, NAME); \
747 ASM_OUTPUT_SKIP (FILE, SIZE); \
748 if (!flag_inhibit_size_directive && (SIZE) > 0) \
749 { \
750 fprintf (FILE, "%s", SIZE_ASM_OP); \
751 assemble_name (FILE, NAME); \
752 fprintf (FILE, ",%d\n", SIZE); \
753 } \
754 } \
755 else \
756 { \
757 fprintf (FILE, "%s", LCOMM_ASM_OP); \
758 assemble_name ((FILE), (NAME)); \
759 fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
760 } \
761 } while (0)
762
763 /* Describe how to emit uninitialized external linkage items. */
764 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
765 do { \
766 ASM_GLOBALIZE_LABEL (FILE, NAME); \
767 ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN); \
768 } while (0)
769
770 /* Switch Recognition by gcc.c. Add -G xx support. */
771
772 /* Override svr4.h definition. */
773 #undef SWITCH_TAKES_ARG
774 #define SWITCH_TAKES_ARG(CHAR) \
775 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
776 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
777 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
778 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
779 || (CHAR) == 'B' || (CHAR) == 'b' || (CHAR) == 'G')
780
781 /* Output .file. */
782 /* Override elfos.h definition. */
783 #undef ASM_FILE_START
784 #define ASM_FILE_START(FILE) \
785 do { \
786 output_file_directive ((FILE), main_input_filename); \
787 rs6000_file_start (FILE, TARGET_CPU_DEFAULT); \
788 } while (0)
789
790
791 extern int fixuplabelno;
792
793 /* Handle constructors specially for -mrelocatable. */
794 #define TARGET_ASM_CONSTRUCTOR rs6000_elf_asm_out_constructor
795 #define TARGET_ASM_DESTRUCTOR rs6000_elf_asm_out_destructor
796
797 /* This is the end of what might become sysv4.h. */
798
799 /* Use DWARF 2 debugging information by default. */
800 #undef PREFERRED_DEBUGGING_TYPE
801 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
802
803 /* Historically we have also supported stabs debugging. */
804 #define DBX_DEBUGGING_INFO
805
806 /* If we are referencing a function that is static or is known to be
807 in this file, make the SYMBOL_REF special. We can use this to indicate
808 that we can branch to this function without emitting a no-op after the
809 call. For real AIX calling sequences, we also replace the
810 function name with the real name (1 or 2 leading .'s), rather than
811 the function descriptor name. This saves a lot of overriding code
812 to read the prefixes. */
813
814 #undef ENCODE_SECTION_INFO
815 #define ENCODE_SECTION_INFO(DECL, FIRST) \
816 rs6000_encode_section_info (DECL, FIRST)
817
818 /* The ELF version doesn't encode [DS] or whatever at the end of symbols. */
819
820 #define RS6000_OUTPUT_BASENAME(FILE, NAME) \
821 assemble_name (FILE, NAME)
822
823 /* This macro gets just the user-specified name
824 out of the string in a SYMBOL_REF. Discard
825 a leading * or @. */
826 #define STRIP_NAME_ENCODING(VAR,SYMBOL_NAME) \
827 do { \
828 const char *_name = SYMBOL_NAME; \
829 while (*_name == '*' || *_name == '@') \
830 _name++; \
831 (VAR) = _name; \
832 } while (0)
833
834 /* This is how to output a reference to a user-level label named NAME.
835 `assemble_name' uses this. */
836
837 /* Override elfos.h definition. */
838 #undef ASM_OUTPUT_LABELREF
839 #define ASM_OUTPUT_LABELREF(FILE,NAME) \
840 do { \
841 const char *_name = NAME; \
842 if (*_name == '@') \
843 _name++; \
844 \
845 if (*_name == '*') \
846 fprintf (FILE, "%s", _name + 1); \
847 else \
848 asm_fprintf (FILE, "%U%s", _name); \
849 } while (0)
850
851 /* But, to make this work, we have to output the stabs for the function
852 name *first*... */
853
854 #define DBX_FUNCTION_FIRST
855
856 /* This is the end of what might become sysv4dbx.h. */
857
858 #ifndef TARGET_VERSION
859 #define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)");
860 #endif
861 \f
862 #ifndef CPP_PREDEFINES
863 #define CPP_PREDEFINES \
864 "-DPPC -Dunix -D__svr4__ -Asystem=unix -Asystem=svr4 -Acpu=powerpc -Amachine=powerpc"
865 #endif
866
867 /* Pass various options to the assembler. */
868 /* Override svr4.h definition. */
869 #undef ASM_SPEC
870 #define ASM_SPEC "%(asm_cpu) \
871 %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
872 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
873 %{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \
874 %{memb} %{!memb: %{msdata: -memb} %{msdata=eabi: -memb}} \
875 %{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian} \
876 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
877 %{mcall-freebsd: -mbig} \
878 %{mcall-i960-old: -mlittle} \
879 %{mcall-linux: -mbig} \
880 %{mcall-gnu: -mbig} \
881 %{mcall-netbsd: -mbig} \
882 }}}}"
883
884 #define CC1_ENDIAN_BIG_SPEC ""
885
886 #define CC1_ENDIAN_LITTLE_SPEC "\
887 %{!mstrict-align: %{!mno-strict-align: \
888 %{!mcall-i960-old: \
889 -mstrict-align \
890 } \
891 }}"
892
893 #define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)"
894
895 /* Pass -G xxx to the compiler and set correct endian mode. */
896 #define CC1_SPEC "%{G*} \
897 %{mlittle: %(cc1_endian_little)} %{!mlittle: %{mlittle-endian: %(cc1_endian_little)}} \
898 %{mbig: %(cc1_endian_big)} %{!mbig: %{mbig-endian: %(cc1_endian_big)}} \
899 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
900 %{mcall-aixdesc: -mbig %(cc1_endian_big) } \
901 %{mcall-freebsd: -mbig %(cc1_endian_big) } \
902 %{mcall-i960-old: -mlittle %(cc1_endian_little) } \
903 %{mcall-linux: -mbig %(cc1_endian_big) } \
904 %{mcall-gnu: -mbig %(cc1_endian_big) } \
905 %{mcall-netbsd: -mbig %(cc1_endian_big) } \
906 %{!mcall-aixdesc: %{!mcall-freebsd: %{!mcall-i960-old: %{!mcall-linux: %{!mcall-gnu: %{!mcall-netbsd: \
907 %(cc1_endian_default) \
908 }}}}}} \
909 }}}} \
910 %{mno-sdata: -msdata=none } \
911 %{meabi: %{!mcall-*: -mcall-sysv }} \
912 %{!meabi: %{!mno-eabi: \
913 %{mrelocatable: -meabi } \
914 %{mcall-freebsd: -mno-eabi } \
915 %{mcall-i960-old: -meabi } \
916 %{mcall-linux: -mno-eabi } \
917 %{mcall-gnu: -mno-eabi } \
918 %{mcall-netbsd: -mno-eabi }}} \
919 %{msdata: -msdata=default} \
920 %{mno-sdata: -msdata=none} \
921 %{profile: -p}"
922
923 /* Don't put -Y P,<path> for cross compilers. */
924 #ifndef CROSS_COMPILE
925 #define LINK_PATH_SPEC "\
926 %{!R*:%{L*:-R %*}} \
927 %{!nostdlib: %{!YP,*: \
928 %{compat-bsd: \
929 %{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
930 %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
931 %{!R*: %{!L*: -R /usr/ucblib}} \
932 %{!compat-bsd: \
933 %{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
934 %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}}"
935
936 #else
937 #define LINK_PATH_SPEC ""
938 #endif
939
940 /* Default starting address if specified. */
941 #define LINK_START_SPEC "\
942 %{mads: %(link_start_ads) } \
943 %{myellowknife: %(link_start_yellowknife) } \
944 %{mmvme: %(link_start_mvme) } \
945 %{msim: %(link_start_sim) } \
946 %{mwindiss: %(link_start_windiss) } \
947 %{mcall-freebsd: %(link_start_freebsd) } \
948 %{mcall-linux: %(link_start_linux) } \
949 %{mcall-gnu: %(link_start_gnu) } \
950 %{mcall-netbsd: %(link_start_netbsd) } \
951 %{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mwindiss: \
952 %{!mcall-linux: %{!mcall-gnu: %{!mcall-netbsd: \
953 %{!mcall-freebsd: %(link_start_default) }}}}}}}}}"
954
955 #define LINK_START_DEFAULT_SPEC ""
956
957 /* Override svr4.h definition. */
958 #undef LINK_SPEC
959 #define LINK_SPEC "\
960 %{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \
961 %{YP,*} %{R*} \
962 %{Qy:} %{!Qn:-Qy} \
963 %(link_shlib) \
964 %{!Wl,-T*: %{!T*: %(link_start) }} \
965 %(link_target) \
966 %(link_os)"
967
968 /* For now, turn off shared libraries by default. */
969 #ifndef SHARED_LIB_SUPPORT
970 #define NO_SHARED_LIB_SUPPORT
971 #endif
972
973 #ifndef NO_SHARED_LIB_SUPPORT
974 /* Shared libraries are default. */
975 #define LINK_SHLIB_SPEC "\
976 %{!static: %(link_path) %{!R*:%{L*:-R %*}}} \
977 %{mshlib: } \
978 %{static:-dn -Bstatic} \
979 %{shared:-G -dy -z text} \
980 %{symbolic:-Bsymbolic -G -dy -z text}"
981
982 #else
983 /* Shared libraries are not default. */
984 #define LINK_SHLIB_SPEC "\
985 %{mshlib: %(link_path) } \
986 %{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \
987 %{static: } \
988 %{shared:-G -dy -z text %(link_path) } \
989 %{symbolic:-Bsymbolic -G -dy -z text %(link_path) }"
990 #endif
991
992 /* Override the default target of the linker. */
993 #define LINK_TARGET_SPEC "\
994 %{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \
995 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
996 %{mcall-i960-old: --oformat elf32-powerpcle} \
997 }}}}"
998
999 /* Any specific OS flags. */
1000 #define LINK_OS_SPEC "\
1001 %{mads: %(link_os_ads) } \
1002 %{myellowknife: %(link_os_yellowknife) } \
1003 %{mmvme: %(link_os_mvme) } \
1004 %{msim: %(link_os_sim) } \
1005 %{mwindiss: %(link_os_windiss) } \
1006 %{mcall-freebsd: %(link_os_freebsd) } \
1007 %{mcall-linux: %(link_os_linux) } \
1008 %{mcall-gnu: %(link_os_gnu) } \
1009 %{mcall-netbsd: %(link_os_netbsd) } \
1010 %{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mwindiss: \
1011 %{!mcall-freebsd: %{!mcall-linux: %{!mcall-gnu: \
1012 %{!mcall-netbsd: %(link_os_default) }}}}}}}}}"
1013
1014 #define LINK_OS_DEFAULT_SPEC ""
1015
1016 #define CPP_SYSV_SPEC \
1017 "%{mrelocatable*: -D_RELOCATABLE} \
1018 %{fpic: -D__PIC__=1 -D__pic__=1} \
1019 %{!fpic: %{fPIC: -D__PIC__=2 -D__pic__=2}} \
1020 %{mlong-double-128: -D__LONG_DOUBLE_128__=1} \
1021 %{!mlong-double-64: %(cpp_longdouble_default)} \
1022 %{mcall-sysv: -D_CALL_SYSV} \
1023 %{mcall-aix: -D_CALL_AIX} %{mcall-aixdesc: -D_CALL_AIX -D_CALL_AIXDESC} \
1024 %{!mcall-sysv: %{!mcall-aix: %{!mcall-aixdesc: %(cpp_sysv_default) }}} \
1025 %{msoft-float: -D_SOFT_FLOAT} \
1026 %{!msoft-float: %{!mhard-float: \
1027 %{mcpu=401: -D_SOFT_FLOAT} \
1028 %{mcpu=403: -D_SOFT_FLOAT} \
1029 %{mcpu=405: -D_SOFT_FLOAT} \
1030 %{mcpu=ec603e: -D_SOFT_FLOAT} \
1031 %{mcpu=801: -D_SOFT_FLOAT} \
1032 %{mcpu=821: -D_SOFT_FLOAT} \
1033 %{mcpu=823: -D_SOFT_FLOAT} \
1034 %{mcpu=860: -D_SOFT_FLOAT} \
1035 %{!mcpu*: %(cpp_float_default) }}}"
1036
1037 /* Whether floating point is disabled by default. */
1038 #define CPP_FLOAT_DEFAULT_SPEC ""
1039
1040 /* Whether 'long double' is 128 bits by default. */
1041 #define CPP_LONGDOUBLE_DEFAULT_SPEC ""
1042
1043 #define CPP_SYSV_DEFAULT_SPEC "-D_CALL_SYSV"
1044
1045 #define CPP_ENDIAN_BIG_SPEC "-D_BIG_ENDIAN -D__BIG_ENDIAN__ -Amachine=bigendian"
1046
1047 #define CPP_ENDIAN_LITTLE_SPEC "-D_LITTLE_ENDIAN -D__LITTLE_ENDIAN__ -Amachine=littleendian"
1048
1049 #define CPP_ENDIAN_SPEC \
1050 "%{mlittle: %(cpp_endian_little) } \
1051 %{mlittle-endian: %(cpp_endian_little) } \
1052 %{mbig: %(cpp_endian_big) } \
1053 %{mbig-endian: %(cpp_endian_big) } \
1054 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
1055 %{mcall-freebsd: %(cpp_endian_big) } \
1056 %{mcall-linux: %(cpp_endian_big) } \
1057 %{mcall-gnu: %(cpp_endian_big) } \
1058 %{mcall-netbsd: %(cpp_endian_big) } \
1059 %{mcall-i960-old: %(cpp_endian_little) } \
1060 %{mcall-aixdesc: %(cpp_endian_big) } \
1061 %{!mcall-linux: %{!mcall-gnu: %{!mcall-freebsd: %{!mcall-netbsd: %{!mcall-aixdesc: %(cpp_endian_default) }}}}}}}}}"
1062
1063 #define CPP_ENDIAN_DEFAULT_SPEC "%(cpp_endian_big)"
1064
1065 /* Override rs6000.h definition. */
1066 #undef CPP_SPEC
1067 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} %(cpp_sysv) %(cpp_endian) %(cpp_cpu) \
1068 %{mads: %(cpp_os_ads) } \
1069 %{myellowknife: %(cpp_os_yellowknife) } \
1070 %{mmvme: %(cpp_os_mvme) } \
1071 %{msim: %(cpp_os_sim) } \
1072 %{mwindiss: %(cpp_os_windiss) } \
1073 %{mcall-freebsd: %(cpp_os_freebsd) } \
1074 %{mcall-linux: %(cpp_os_linux) } \
1075 %{mcall-gnu: %(cpp_os_gnu) } \
1076 %{mcall-netbsd: %(cpp_os_netbsd) } \
1077 %{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mwindiss: \
1078 %{!mcall-freebsd: %{!mcall-linux: %{!mcall-gnu: \
1079 %{!mcall-netbsd: %(cpp_os_default) }}}}}}}}}"
1080
1081 #define CPP_OS_DEFAULT_SPEC ""
1082
1083 /* Override svr4.h definition. */
1084 #undef STARTFILE_SPEC
1085 #define STARTFILE_SPEC "\
1086 %{mads: %(startfile_ads) } \
1087 %{myellowknife: %(startfile_yellowknife) } \
1088 %{mmvme: %(startfile_mvme) } \
1089 %{msim: %(startfile_sim) } \
1090 %{mwindiss: %(startfile_windiss) } \
1091 %{mcall-freebsd: %(startfile_freebsd) } \
1092 %{mcall-linux: %(startfile_linux) } \
1093 %{mcall-gnu: %(startfile_gnu) } \
1094 %{mcall-netbsd: %(startfile_netbsd) } \
1095 %{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mwindiss: \
1096 %{!mcall-freebsd: %{!mcall-linux: %{!mcall-gnu: \
1097 %{!mcall-netbsd: %(startfile_default) }}}}}}}}}"
1098
1099 #define STARTFILE_DEFAULT_SPEC ""
1100
1101 /* Override svr4.h definition. */
1102 #undef LIB_SPEC
1103 #define LIB_SPEC "\
1104 %{mads: %(lib_ads) } \
1105 %{myellowknife: %(lib_yellowknife) } \
1106 %{mmvme: %(lib_mvme) } \
1107 %{msim: %(lib_sim) } \
1108 %{mwindiss: %(lib_windiss) } \
1109 %{mcall-freebsd: %(lib_freebsd) } \
1110 %{mcall-linux: %(lib_linux) } \
1111 %{mcall-gnu: %(lib_gnu) } \
1112 %{mcall-netbsd: %(lib_netbsd) } \
1113 %{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mwindiss: \
1114 %{!mcall-freebsd: %{!mcall-linux: %{!mcall-gnu: \
1115 %{!mcall-netbsd: %(lib_default) }}}}}}}}}"
1116
1117 #define LIB_DEFAULT_SPEC ""
1118
1119 /* Override svr4.h definition. */
1120 #undef ENDFILE_SPEC
1121 #define ENDFILE_SPEC "\
1122 %{mads: crtsavres.o%s %(endfile_ads)} \
1123 %{myellowknife: crtsavres.o%s %(endfile_yellowknife)} \
1124 %{mmvme: crtsavres.o%s %(endfile_mvme)} \
1125 %{msim: crtsavres.o%s %(endfile_sim)} \
1126 %{mwindiss: %(endfile_windiss)} \
1127 %{mcall-freebsd: crtsavres.o%s %(endfile_freebsd) } \
1128 %{mcall-linux: crtsavres.o%s %(endfile_linux) } \
1129 %{mcall-gnu: crtsavres.o%s %(endfile_gnu) } \
1130 %{mcall-netbsd: crtsavres.o%s %(endfile_netbsd) } \
1131 %{mvxworks: crtsavres.o%s %(endfile_vxworks) } \
1132 %{!mads: %{!myellowknife: %{!mmvme: %{!msim: %{!mwindiss: \
1133 %{!mcall-freebsd: %{!mcall-linux: %{!mcall-gnu: \
1134 %{!mcall-netbsd: %{!mvxworks: %(crtsavres_default) \
1135 %(endfile_default) }}}}}}}}}}"
1136
1137 #define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s"
1138
1139 #define ENDFILE_DEFAULT_SPEC ""
1140
1141 /* Motorola ADS support. */
1142 #define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
1143
1144 #define STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1145
1146 #define ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s"
1147
1148 #define LINK_START_ADS_SPEC "-T ads.ld%s"
1149
1150 #define LINK_OS_ADS_SPEC ""
1151
1152 #define CPP_OS_ADS_SPEC ""
1153
1154 /* Motorola Yellowknife support. */
1155 #define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group"
1156
1157 #define STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1158
1159 #define ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s"
1160
1161 #define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s"
1162
1163 #define LINK_OS_YELLOWKNIFE_SPEC ""
1164
1165 #define CPP_OS_YELLOWKNIFE_SPEC ""
1166
1167 /* Motorola MVME support. */
1168 #define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group"
1169
1170 #define STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1171
1172 #define ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s"
1173
1174 #define LINK_START_MVME_SPEC "-Ttext 0x40000"
1175
1176 #define LINK_OS_MVME_SPEC ""
1177
1178 #define CPP_OS_MVME_SPEC ""
1179
1180 /* PowerPC simulator based on netbsd system calls support. */
1181 #define LIB_SIM_SPEC "--start-group -lsim -lc --end-group"
1182
1183 #define STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s"
1184
1185 #define ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s"
1186
1187 #define LINK_START_SIM_SPEC ""
1188
1189 #define LINK_OS_SIM_SPEC "-m elf32ppcsim"
1190
1191 #define CPP_OS_SIM_SPEC ""
1192
1193 /* FreeBSD support. */
1194
1195 #define CPP_OS_FREEBSD_SPEC "\
1196 -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \
1197 -Acpu=powerpc -Amachine=powerpc"
1198
1199 #define STARTFILE_FREEBSD_SPEC FBSD_STARTFILE_SPEC
1200 #define ENDFILE_FREEBSD_SPEC FBSD_ENDFILE_SPEC
1201 #define LIB_FREEBSD_SPEC FBSD_LIB_SPEC
1202 #define LINK_START_FREEBSD_SPEC ""
1203
1204 #define LINK_OS_FREEBSD_SPEC "\
1205 %{symbolic:-Bsymbolic}"
1206
1207 /* GNU/Linux support. */
1208 #ifdef USE_GNULIBC_1
1209 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1210 %{!mnewlib: -lc }"
1211 #else
1212 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1213 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1214 %{profile:-lc_p} %{!profile:-lc}}}"
1215 #endif
1216
1217 #ifdef USE_GNULIBC_1
1218 #define STARTFILE_LINUX_SPEC "\
1219 %{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
1220 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1221 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1222 #else
1223 #define STARTFILE_LINUX_SPEC "\
1224 %{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
1225 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1226 %{static:crtbeginT.o%s} \
1227 %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}"
1228 #endif
1229
1230 #define ENDFILE_LINUX_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1231 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1232
1233 #define LINK_START_LINUX_SPEC ""
1234
1235 #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1236 %{rdynamic:-export-dynamic} \
1237 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1238
1239 #if !defined(USE_GNULIBC_1) && defined(HAVE_LD_EH_FRAME_HDR)
1240 # define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
1241 #endif
1242
1243 #ifdef USE_GNULIBC_1
1244 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1245 %{!undef: \
1246 %{!ansi: \
1247 %{!std=*:-Dunix -D__unix -Dlinux -D__linux} \
1248 %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \
1249 -Asystem=unix -Asystem=posix"
1250 #else
1251 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1252 %{!undef: \
1253 %{!ansi: \
1254 %{!std=*:-Dunix -D__unix -Dlinux -D__linux} \
1255 %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \
1256 -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1257 #endif
1258
1259 /* GNU/Hurd support. */
1260 #define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \
1261 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1262 %{profile:-lc_p} %{!profile:-lc}}}"
1263
1264 #define STARTFILE_GNU_SPEC "\
1265 %{!shared: %{!static: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}} \
1266 %{static: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
1267 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1268 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1269
1270 #define ENDFILE_GNU_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1271 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1272
1273 #define LINK_START_GNU_SPEC ""
1274
1275 #define LINK_OS_GNU_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1276 %{rdynamic:-export-dynamic} \
1277 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1278
1279 #define CPP_OS_GNU_SPEC "-D__unix__ -D__gnu_hurd__ -D__GNU__ \
1280 %{!undef: \
1281 %{!ansi: -Dunix -D__unix}} \
1282 -Asystem=gnu -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1283
1284 /* NetBSD support. */
1285 #define LIB_NETBSD_SPEC "\
1286 %{profile:-lgmon -lc_p} %{!profile:-lc}"
1287
1288 #define STARTFILE_NETBSD_SPEC "\
1289 ncrti.o%s crt0.o%s \
1290 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1291
1292 #define ENDFILE_NETBSD_SPEC "\
1293 %{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1294 ncrtn.o%s"
1295
1296 #define LINK_START_NETBSD_SPEC "\
1297 "
1298
1299 #define LINK_OS_NETBSD_SPEC "\
1300 %{!shared: %{!static: \
1301 %{rdynamic:-export-dynamic} \
1302 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}}"
1303
1304 #define CPP_OS_NETBSD_SPEC "\
1305 -D__powerpc__ -D__NetBSD__ -D__ELF__ -D__KPRINTF_ATTRIBUTE__"
1306
1307 /* VxWorks support. */
1308 /* VxWorks does all the library stuff itself. */
1309 #define LIB_VXWORKS_SPEC ""
1310
1311 /* VxWorks provides the functionality of crt0.o and friends itself. */
1312
1313 #define STARTFILE_VXWORKS_SPEC ""
1314
1315 #define ENDFILE_VXWORKS_SPEC ""
1316
1317 /* Because it uses ld -r, vxworks has no start/end files, nor starting
1318 address. */
1319
1320 #define LINK_START_VXWORKS_SPEC ""
1321
1322 #define LINK_OS_VXWORKS_SPEC "-r"
1323
1324 #define CPP_OS_VXWORKS_SPEC "\
1325 -DCPU_FAMILY=PPC \
1326 %{!mcpu*: \
1327 %{mpowerpc*: -DCPU=PPC603} \
1328 %{!mno-powerpc: -DCPU=PPC603}} \
1329 %{mcpu=powerpc: -DCPU=PPC603} \
1330 %{mcpu=401: -DCPU=PPC403} \
1331 %{mcpu=403: -DCPU=PPC403} \
1332 %{mcpu=405: -DCPU=PPC405} \
1333 %{mcpu=601: -DCPU=PPC601} \
1334 %{mcpu=602: -DCPU=PPC603} \
1335 %{mcpu=603: -DCPU=PPC603} \
1336 %{mcpu=603e: -DCPU=PPC603} \
1337 %{mcpu=ec603e: -DCPU=PPC603} \
1338 %{mcpu=604: -DCPU=PPC604} \
1339 %{mcpu=604e: -DCPU=PPC604} \
1340 %{mcpu=620: -DCPU=PPC604} \
1341 %{mcpu=740: -DCPU=PPC603} \
1342 %{mcpu=7450: -DCPU=PPC603} \
1343 %{mcpu=750: -DCPU=PPC603} \
1344 %{mcpu=801: -DCPU=PPC603} \
1345 %{mcpu=821: -DCPU=PPC603} \
1346 %{mcpu=823: -DCPU=PPC603} \
1347 %{mcpu=860: -DCPU=PPC603}"
1348
1349 /* WindISS support. */
1350
1351 #define LIB_WINDISS_SPEC "--start-group -li -lcfp -lwindiss -lram -limpl -limpfp --end-group"
1352
1353 #define CPP_OS_WINDISS_SPEC "\
1354 -D__rtasim \
1355 -D__EABI__ \
1356 -D__ppc \
1357 %{!msoft-float: -D__hardfp} \
1358 "
1359
1360 #define STARTFILE_WINDISS_SPEC "crt0.o%s crtbegin.o%s"
1361
1362 #define ENDFILE_WINDISS_SPEC "crtend.o%s"
1363
1364 #define LINK_START_WINDISS_SPEC ""
1365
1366 #define LINK_OS_WINDISS_SPEC ""
1367
1368 /* Define any extra SPECS that the compiler needs to generate. */
1369 /* Override rs6000.h definition. */
1370 #undef SUBTARGET_EXTRA_SPECS
1371 #define SUBTARGET_EXTRA_SPECS \
1372 { "cpp_sysv", CPP_SYSV_SPEC }, \
1373 { "cpp_sysv_default", CPP_SYSV_DEFAULT_SPEC }, \
1374 { "cpp_endian_default", CPP_ENDIAN_DEFAULT_SPEC }, \
1375 { "cpp_endian", CPP_ENDIAN_SPEC }, \
1376 { "crtsavres_default", CRTSAVRES_DEFAULT_SPEC }, \
1377 { "lib_ads", LIB_ADS_SPEC }, \
1378 { "lib_yellowknife", LIB_YELLOWKNIFE_SPEC }, \
1379 { "lib_mvme", LIB_MVME_SPEC }, \
1380 { "lib_sim", LIB_SIM_SPEC }, \
1381 { "lib_freebsd", LIB_FREEBSD_SPEC }, \
1382 { "lib_gnu", LIB_GNU_SPEC }, \
1383 { "lib_linux", LIB_LINUX_SPEC }, \
1384 { "lib_netbsd", LIB_NETBSD_SPEC }, \
1385 { "lib_vxworks", LIB_VXWORKS_SPEC }, \
1386 { "lib_windiss", LIB_WINDISS_SPEC }, \
1387 { "lib_default", LIB_DEFAULT_SPEC }, \
1388 { "startfile_ads", STARTFILE_ADS_SPEC }, \
1389 { "startfile_yellowknife", STARTFILE_YELLOWKNIFE_SPEC }, \
1390 { "startfile_mvme", STARTFILE_MVME_SPEC }, \
1391 { "startfile_sim", STARTFILE_SIM_SPEC }, \
1392 { "startfile_freebsd", STARTFILE_FREEBSD_SPEC }, \
1393 { "startfile_gnu", STARTFILE_GNU_SPEC }, \
1394 { "startfile_linux", STARTFILE_LINUX_SPEC }, \
1395 { "startfile_netbsd", STARTFILE_NETBSD_SPEC }, \
1396 { "startfile_vxworks", STARTFILE_VXWORKS_SPEC }, \
1397 { "startfile_windiss", STARTFILE_WINDISS_SPEC }, \
1398 { "startfile_default", STARTFILE_DEFAULT_SPEC }, \
1399 { "endfile_ads", ENDFILE_ADS_SPEC }, \
1400 { "endfile_yellowknife", ENDFILE_YELLOWKNIFE_SPEC }, \
1401 { "endfile_mvme", ENDFILE_MVME_SPEC }, \
1402 { "endfile_sim", ENDFILE_SIM_SPEC }, \
1403 { "endfile_freebsd", ENDFILE_FREEBSD_SPEC }, \
1404 { "endfile_gnu", ENDFILE_GNU_SPEC }, \
1405 { "endfile_linux", ENDFILE_LINUX_SPEC }, \
1406 { "endfile_netbsd", ENDFILE_NETBSD_SPEC }, \
1407 { "endfile_vxworks", ENDFILE_VXWORKS_SPEC }, \
1408 { "endfile_windiss", ENDFILE_WINDISS_SPEC }, \
1409 { "endfile_default", ENDFILE_DEFAULT_SPEC }, \
1410 { "link_path", LINK_PATH_SPEC }, \
1411 { "link_shlib", LINK_SHLIB_SPEC }, \
1412 { "link_target", LINK_TARGET_SPEC }, \
1413 { "link_start", LINK_START_SPEC }, \
1414 { "link_start_ads", LINK_START_ADS_SPEC }, \
1415 { "link_start_yellowknife", LINK_START_YELLOWKNIFE_SPEC }, \
1416 { "link_start_mvme", LINK_START_MVME_SPEC }, \
1417 { "link_start_sim", LINK_START_SIM_SPEC }, \
1418 { "link_start_freebsd", LINK_START_FREEBSD_SPEC }, \
1419 { "link_start_gnu", LINK_START_GNU_SPEC }, \
1420 { "link_start_linux", LINK_START_LINUX_SPEC }, \
1421 { "link_start_netbsd", LINK_START_NETBSD_SPEC }, \
1422 { "link_start_vxworks", LINK_START_VXWORKS_SPEC }, \
1423 { "link_start_windiss", LINK_START_WINDISS_SPEC }, \
1424 { "link_start_default", LINK_START_DEFAULT_SPEC }, \
1425 { "link_os", LINK_OS_SPEC }, \
1426 { "link_os_ads", LINK_OS_ADS_SPEC }, \
1427 { "link_os_yellowknife", LINK_OS_YELLOWKNIFE_SPEC }, \
1428 { "link_os_mvme", LINK_OS_MVME_SPEC }, \
1429 { "link_os_sim", LINK_OS_SIM_SPEC }, \
1430 { "link_os_freebsd", LINK_OS_FREEBSD_SPEC }, \
1431 { "link_os_linux", LINK_OS_LINUX_SPEC }, \
1432 { "link_os_gnu", LINK_OS_GNU_SPEC }, \
1433 { "link_os_netbsd", LINK_OS_NETBSD_SPEC }, \
1434 { "link_os_vxworks", LINK_OS_VXWORKS_SPEC }, \
1435 { "link_os_windiss", LINK_OS_WINDISS_SPEC }, \
1436 { "link_os_default", LINK_OS_DEFAULT_SPEC }, \
1437 { "cc1_endian_big", CC1_ENDIAN_BIG_SPEC }, \
1438 { "cc1_endian_little", CC1_ENDIAN_LITTLE_SPEC }, \
1439 { "cc1_endian_default", CC1_ENDIAN_DEFAULT_SPEC }, \
1440 { "cpp_endian_big", CPP_ENDIAN_BIG_SPEC }, \
1441 { "cpp_endian_little", CPP_ENDIAN_LITTLE_SPEC }, \
1442 { "cpp_float_default", CPP_FLOAT_DEFAULT_SPEC }, \
1443 { "cpp_longdouble_default", CPP_LONGDOUBLE_DEFAULT_SPEC }, \
1444 { "cpp_os_ads", CPP_OS_ADS_SPEC }, \
1445 { "cpp_os_yellowknife", CPP_OS_YELLOWKNIFE_SPEC }, \
1446 { "cpp_os_mvme", CPP_OS_MVME_SPEC }, \
1447 { "cpp_os_sim", CPP_OS_SIM_SPEC }, \
1448 { "cpp_os_freebsd", CPP_OS_FREEBSD_SPEC }, \
1449 { "cpp_os_gnu", CPP_OS_GNU_SPEC }, \
1450 { "cpp_os_linux", CPP_OS_LINUX_SPEC }, \
1451 { "cpp_os_netbsd", CPP_OS_NETBSD_SPEC }, \
1452 { "cpp_os_vxworks", CPP_OS_VXWORKS_SPEC }, \
1453 { "cpp_os_windiss", CPP_OS_WINDISS_SPEC }, \
1454 { "cpp_os_default", CPP_OS_DEFAULT_SPEC },
1455
1456 /* Define this macro as a C expression for the initializer of an
1457 array of string to tell the driver program which options are
1458 defaults for this target and thus do not need to be handled
1459 specially when using `MULTILIB_OPTIONS'.
1460
1461 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
1462 the target makefile fragment or if none of the options listed in
1463 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
1464
1465 #define MULTILIB_DEFAULTS { "mbig", "mcall-sysv" }
1466
1467 /* Define this macro if the code for function profiling should come
1468 before the function prologue. Normally, the profiling code comes
1469 after. */
1470 #define PROFILE_BEFORE_PROLOGUE 1
1471
1472 /* Function name to call to do profiling. */
1473 #define RS6000_MCOUNT "_mcount"
1474
1475 /* Define this macro (to a value of 1) if you want to support the
1476 Win32 style pragmas #pragma pack(push,<n>)' and #pragma
1477 pack(pop)'. The pack(push,<n>) pragma specifies the maximum
1478 alignment (in bytes) of fields within a structure, in much the
1479 same way as the __aligned__' and __packed__' __attribute__'s
1480 do. A pack value of zero resets the behaviour to the default.
1481 Successive invocations of this pragma cause the previous values to
1482 be stacked, so that invocations of #pragma pack(pop)' will return
1483 to the previous value. */
1484
1485 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
1486
1487 /* Define library calls for quad FP operations. These are all part of the
1488 PowerPC 32bit ABI. */
1489 #define ADDTF3_LIBCALL "_q_add"
1490 #define DIVTF3_LIBCALL "_q_div"
1491 #define EXTENDDFTF2_LIBCALL "_q_dtoq"
1492 #define EQTF2_LIBCALL "_q_feq"
1493 #define GETF2_LIBCALL "_q_fge"
1494 #define GTTF2_LIBCALL "_q_fgt"
1495 #define LETF2_LIBCALL "_q_fle"
1496 #define LTTF2_LIBCALL "_q_flt"
1497 #define NETF2_LIBCALL "_q_fne"
1498 #define FLOATSITF2_LIBCALL "_q_itoq"
1499 #define MULTF3_LIBCALL "_q_mul"
1500 #define NEGTF2_LIBCALL "_q_neg"
1501 #define TRUNCTFDF2_LIBCALL "_q_qtod"
1502 #define FIX_TRUNCTFSI2_LIBCALL "_q_qtoi"
1503 #define TRUNCTFSF2_LIBCALL "_q_qtos"
1504 #define FIXUNS_TRUNCTFSI2_LIBCALL "_q_qtou"
1505 #define SQRTTF_LIBCALL "_q_sqrt"
1506 #define EXTENDSFTF2_LIBCALL "_q_stoq"
1507 #define SUBTF3_LIBCALL "_q_sub"
1508 #define FLOATUNSSITF2_LIBCALL "_q_utoq"
1509
1510 #define INIT_TARGET_OPTABS \
1511 do { \
1512 if (TARGET_HARD_FLOAT) \
1513 { \
1514 add_optab->handlers[(int) TFmode].libfunc \
1515 = init_one_libfunc (ADDTF3_LIBCALL); \
1516 sub_optab->handlers[(int) TFmode].libfunc \
1517 = init_one_libfunc (SUBTF3_LIBCALL); \
1518 neg_optab->handlers[(int) TFmode].libfunc \
1519 = init_one_libfunc (NEGTF2_LIBCALL); \
1520 smul_optab->handlers[(int) TFmode].libfunc \
1521 = init_one_libfunc (MULTF3_LIBCALL); \
1522 sdiv_optab->handlers[(int) TFmode].libfunc \
1523 = init_one_libfunc (DIVTF3_LIBCALL); \
1524 eqtf2_libfunc = init_one_libfunc (EQTF2_LIBCALL); \
1525 netf2_libfunc = init_one_libfunc (NETF2_LIBCALL); \
1526 gttf2_libfunc = init_one_libfunc (GTTF2_LIBCALL); \
1527 getf2_libfunc = init_one_libfunc (GETF2_LIBCALL); \
1528 lttf2_libfunc = init_one_libfunc (LTTF2_LIBCALL); \
1529 letf2_libfunc = init_one_libfunc (LETF2_LIBCALL); \
1530 trunctfsf2_libfunc = init_one_libfunc (TRUNCTFSF2_LIBCALL); \
1531 trunctfdf2_libfunc = init_one_libfunc (TRUNCTFDF2_LIBCALL); \
1532 extendsftf2_libfunc = init_one_libfunc (EXTENDSFTF2_LIBCALL); \
1533 extenddftf2_libfunc = init_one_libfunc (EXTENDDFTF2_LIBCALL); \
1534 floatsitf_libfunc = init_one_libfunc (FLOATSITF2_LIBCALL); \
1535 fixtfsi_libfunc = init_one_libfunc (FIX_TRUNCTFSI2_LIBCALL); \
1536 fixunstfsi_libfunc \
1537 = init_one_libfunc (FIXUNS_TRUNCTFSI2_LIBCALL); \
1538 if (TARGET_PPC_GPOPT || TARGET_POWER2) \
1539 sqrt_optab->handlers[(int) TFmode].libfunc \
1540 = init_one_libfunc (SQRTTF_LIBCALL); \
1541 } \
1542 } while (0)
1543
1544 /* Select a format to encode pointers in exception handling data. CODE
1545 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
1546 true if the symbol may be affected by dynamic relocations. */
1547 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
1548 ((flag_pic || TARGET_RELOCATABLE) \
1549 ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \
1550 : DW_EH_PE_absptr)
1551
1552 #define TARGET_ASM_EXCEPTION_SECTION readonly_data_section
1553
1554 #define DOUBLE_INT_ASM_OP "\t.quad\t"
1555
1556 /* Generate entries in .fixup for relocatable addresses. */
1557 #define RELOCATABLE_NEEDS_FIXUP
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