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[thirdparty/gcc.git] / gcc / config / rs6000 / sysv4.h
1 /* Target definitions for GNU compiler for PowerPC running System V.4
2 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
4 Contributed by Cygnus Support.
5
6 This file is part of GCC.
7
8 GCC is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published
10 by the Free Software Foundation; either version 2, or (at your
11 option) any later version.
12
13 GCC is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
16 License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the
20 Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
21 MA 02110-1301, USA. */
22
23 /* Header files should be C++ aware in general. */
24 #undef NO_IMPLICIT_EXTERN_C
25 #define NO_IMPLICIT_EXTERN_C
26
27 /* Yes! We are ELF. */
28 #define TARGET_OBJECT_FORMAT OBJECT_ELF
29
30 /* Default ABI to compile code for. */
31 #define DEFAULT_ABI rs6000_current_abi
32
33 /* Default ABI to use. */
34 #define RS6000_ABI_NAME "sysv"
35
36 /* Override rs6000.h definition. */
37 #undef ASM_DEFAULT_SPEC
38 #define ASM_DEFAULT_SPEC "-mppc"
39
40 /* Small data support types. */
41 enum rs6000_sdata_type {
42 SDATA_NONE, /* No small data support. */
43 SDATA_DATA, /* Just put data in .sbss/.sdata, don't use relocs. */
44 SDATA_SYSV, /* Use r13 to point to .sdata/.sbss. */
45 SDATA_EABI /* Use r13 like above, r2 points to .sdata2/.sbss2. */
46 };
47
48 extern enum rs6000_sdata_type rs6000_sdata;
49
50 #define TARGET_TOC ((target_flags & MASK_64BIT) \
51 || ((target_flags & (MASK_RELOCATABLE \
52 | MASK_MINIMAL_TOC)) \
53 && flag_pic > 1) \
54 || DEFAULT_ABI == ABI_AIX)
55
56 #define TARGET_BITFIELD_TYPE (! TARGET_NO_BITFIELD_TYPE)
57 #define TARGET_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
58 #define TARGET_NO_PROTOTYPE (! TARGET_PROTOTYPE)
59 #define TARGET_NO_TOC (! TARGET_TOC)
60 #define TARGET_NO_EABI (! TARGET_EABI)
61
62 #ifdef HAVE_AS_REL16
63 #undef TARGET_SECURE_PLT
64 #define TARGET_SECURE_PLT secure_plt
65 #endif
66
67 extern const char *rs6000_abi_name;
68 extern const char *rs6000_sdata_name;
69 extern const char *rs6000_tls_size_string; /* For -mtls-size= */
70
71 #define SDATA_DEFAULT_SIZE 8
72
73 /* Sometimes certain combinations of command options do not make sense
74 on a particular target machine. You can define a macro
75 `OVERRIDE_OPTIONS' to take account of this. This macro, if
76 defined, is executed once just after all the command options have
77 been parsed.
78
79 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
80 get control. */
81
82 #define SUBTARGET_OVERRIDE_OPTIONS \
83 do { \
84 if (!g_switch_set) \
85 g_switch_value = SDATA_DEFAULT_SIZE; \
86 \
87 if (rs6000_abi_name == NULL) \
88 rs6000_abi_name = RS6000_ABI_NAME; \
89 \
90 if (!strcmp (rs6000_abi_name, "sysv")) \
91 rs6000_current_abi = ABI_V4; \
92 else if (!strcmp (rs6000_abi_name, "sysv-noeabi")) \
93 { \
94 rs6000_current_abi = ABI_V4; \
95 target_flags &= ~ MASK_EABI; \
96 } \
97 else if (!strcmp (rs6000_abi_name, "sysv-eabi") \
98 || !strcmp (rs6000_abi_name, "eabi")) \
99 { \
100 rs6000_current_abi = ABI_V4; \
101 target_flags |= MASK_EABI; \
102 } \
103 else if (!strcmp (rs6000_abi_name, "aixdesc")) \
104 rs6000_current_abi = ABI_AIX; \
105 else if (!strcmp (rs6000_abi_name, "freebsd")) \
106 rs6000_current_abi = ABI_V4; \
107 else if (!strcmp (rs6000_abi_name, "linux")) \
108 { \
109 if (TARGET_64BIT) \
110 rs6000_current_abi = ABI_AIX; \
111 else \
112 rs6000_current_abi = ABI_V4; \
113 } \
114 else if (!strcmp (rs6000_abi_name, "gnu")) \
115 rs6000_current_abi = ABI_V4; \
116 else if (!strcmp (rs6000_abi_name, "netbsd")) \
117 rs6000_current_abi = ABI_V4; \
118 else if (!strcmp (rs6000_abi_name, "openbsd")) \
119 rs6000_current_abi = ABI_V4; \
120 else if (!strcmp (rs6000_abi_name, "i960-old")) \
121 { \
122 rs6000_current_abi = ABI_V4; \
123 target_flags |= (MASK_LITTLE_ENDIAN | MASK_EABI \
124 | MASK_NO_BITFIELD_WORD); \
125 target_flags &= ~MASK_STRICT_ALIGN; \
126 } \
127 else \
128 { \
129 rs6000_current_abi = ABI_V4; \
130 error ("bad value for -mcall-%s", rs6000_abi_name); \
131 } \
132 \
133 if (rs6000_sdata_name) \
134 { \
135 if (!strcmp (rs6000_sdata_name, "none")) \
136 rs6000_sdata = SDATA_NONE; \
137 else if (!strcmp (rs6000_sdata_name, "data")) \
138 rs6000_sdata = SDATA_DATA; \
139 else if (!strcmp (rs6000_sdata_name, "default")) \
140 rs6000_sdata = (TARGET_EABI) ? SDATA_EABI : SDATA_SYSV; \
141 else if (!strcmp (rs6000_sdata_name, "sysv")) \
142 rs6000_sdata = SDATA_SYSV; \
143 else if (!strcmp (rs6000_sdata_name, "eabi")) \
144 rs6000_sdata = SDATA_EABI; \
145 else \
146 error ("bad value for -msdata=%s", rs6000_sdata_name); \
147 } \
148 else if (DEFAULT_ABI == ABI_V4) \
149 { \
150 rs6000_sdata = SDATA_DATA; \
151 rs6000_sdata_name = "data"; \
152 } \
153 else \
154 { \
155 rs6000_sdata = SDATA_NONE; \
156 rs6000_sdata_name = "none"; \
157 } \
158 \
159 if (TARGET_RELOCATABLE && \
160 (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV)) \
161 { \
162 rs6000_sdata = SDATA_DATA; \
163 error ("-mrelocatable and -msdata=%s are incompatible", \
164 rs6000_sdata_name); \
165 } \
166 \
167 else if (flag_pic && DEFAULT_ABI != ABI_AIX \
168 && (rs6000_sdata == SDATA_EABI \
169 || rs6000_sdata == SDATA_SYSV)) \
170 { \
171 rs6000_sdata = SDATA_DATA; \
172 error ("-f%s and -msdata=%s are incompatible", \
173 (flag_pic > 1) ? "PIC" : "pic", \
174 rs6000_sdata_name); \
175 } \
176 \
177 if ((rs6000_sdata != SDATA_NONE && DEFAULT_ABI != ABI_V4) \
178 || (rs6000_sdata == SDATA_EABI && !TARGET_EABI)) \
179 { \
180 rs6000_sdata = SDATA_NONE; \
181 error ("-msdata=%s and -mcall-%s are incompatible", \
182 rs6000_sdata_name, rs6000_abi_name); \
183 } \
184 \
185 targetm.have_srodata_section = rs6000_sdata == SDATA_EABI; \
186 \
187 if (TARGET_RELOCATABLE && !TARGET_MINIMAL_TOC) \
188 { \
189 target_flags |= MASK_MINIMAL_TOC; \
190 error ("-mrelocatable and -mno-minimal-toc are incompatible"); \
191 } \
192 \
193 if (TARGET_RELOCATABLE && rs6000_current_abi == ABI_AIX) \
194 { \
195 target_flags &= ~MASK_RELOCATABLE; \
196 error ("-mrelocatable and -mcall-%s are incompatible", \
197 rs6000_abi_name); \
198 } \
199 \
200 if (!TARGET_64BIT && flag_pic > 1 && rs6000_current_abi == ABI_AIX) \
201 { \
202 flag_pic = 0; \
203 error ("-fPIC and -mcall-%s are incompatible", \
204 rs6000_abi_name); \
205 } \
206 \
207 if (rs6000_current_abi == ABI_AIX && TARGET_LITTLE_ENDIAN) \
208 { \
209 target_flags &= ~MASK_LITTLE_ENDIAN; \
210 error ("-mcall-aixdesc must be big endian"); \
211 } \
212 \
213 if (TARGET_SECURE_PLT != secure_plt) \
214 { \
215 error ("-msecure-plt not supported by your assembler"); \
216 } \
217 \
218 /* Treat -fPIC the same as -mrelocatable. */ \
219 if (flag_pic > 1 && DEFAULT_ABI != ABI_AIX) \
220 { \
221 target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC; \
222 TARGET_NO_FP_IN_TOC = 1; \
223 } \
224 \
225 else if (TARGET_RELOCATABLE) \
226 flag_pic = 2; \
227 } while (0)
228
229 #ifndef RS6000_BI_ARCH
230 # define SUBSUBTARGET_OVERRIDE_OPTIONS \
231 do { \
232 if ((TARGET_DEFAULT ^ target_flags) & MASK_64BIT) \
233 error ("-m%s not supported in this configuration", \
234 (target_flags & MASK_64BIT) ? "64" : "32"); \
235 } while (0)
236 #endif
237
238 /* Override rs6000.h definition. */
239 #undef TARGET_DEFAULT
240 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
241
242 /* Override rs6000.h definition. */
243 #undef PROCESSOR_DEFAULT
244 #define PROCESSOR_DEFAULT PROCESSOR_PPC750
245
246 /* SVR4 only defined for PowerPC, so short-circuit POWER patterns. */
247 #undef TARGET_POWER
248 #define TARGET_POWER 0
249
250 #define FIXED_R2 1
251 /* System V.4 uses register 13 as a pointer to the small data area,
252 so it is not available to the normal user. */
253 #define FIXED_R13 1
254
255 /* Override default big endianism definitions in rs6000.h. */
256 #undef BYTES_BIG_ENDIAN
257 #undef WORDS_BIG_ENDIAN
258 #define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN)
259 #define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN)
260
261 /* Define this to set the endianness to use in libgcc2.c, which can
262 not depend on target_flags. */
263 #if !defined(__LITTLE_ENDIAN__) && !defined(__sun__)
264 #define LIBGCC2_WORDS_BIG_ENDIAN 1
265 #else
266 #define LIBGCC2_WORDS_BIG_ENDIAN 0
267 #endif
268
269 /* Define cutoff for using external functions to save floating point.
270 Currently on V.4, always use inline stores. */
271 #define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64)
272
273 /* Put jump tables in read-only memory, rather than in .text. */
274 #define JUMP_TABLES_IN_TEXT_SECTION 0
275
276 /* Prefix and suffix to use to saving floating point. */
277 #define SAVE_FP_PREFIX "_savefpr_"
278 #define SAVE_FP_SUFFIX "_l"
279
280 /* Prefix and suffix to use to restoring floating point. */
281 #define RESTORE_FP_PREFIX "_restfpr_"
282 #define RESTORE_FP_SUFFIX "_l"
283
284 /* Type used for ptrdiff_t, as a string used in a declaration. */
285 #define PTRDIFF_TYPE "int"
286
287 /* Type used for wchar_t, as a string used in a declaration. */
288 /* Override svr4.h definition. */
289 #undef WCHAR_TYPE
290 #define WCHAR_TYPE "long int"
291
292 /* Width of wchar_t in bits. */
293 /* Override svr4.h definition. */
294 #undef WCHAR_TYPE_SIZE
295 #define WCHAR_TYPE_SIZE 32
296
297 /* Make int foo : 8 not cause structures to be aligned to an int boundary. */
298 /* Override elfos.h definition. */
299 #undef PCC_BITFIELD_TYPE_MATTERS
300 #define PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE)
301
302 #undef BITFIELD_NBYTES_LIMITED
303 #define BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD)
304
305 /* Define this macro to be the value 1 if instructions will fail to
306 work if given data not on the nominal alignment. If instructions
307 will merely go slower in that case, define this macro as 0. */
308 #undef STRICT_ALIGNMENT
309 #define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN)
310
311 /* Define this macro if you wish to preserve a certain alignment for
312 the stack pointer, greater than what the hardware enforces. The
313 definition is a C expression for the desired alignment (measured
314 in bits). This macro must evaluate to a value equal to or larger
315 than STACK_BOUNDARY.
316 For the SYSV ABI and variants the alignment of the stack pointer
317 is usually controlled manually in rs6000.c. However, to maintain
318 alignment across alloca () in all circumstances,
319 PREFERRED_STACK_BOUNDARY needs to be set as well.
320 This has the additional advantage of allowing a bigger maximum
321 alignment of user objects on the stack. */
322
323 #undef PREFERRED_STACK_BOUNDARY
324 #define PREFERRED_STACK_BOUNDARY 128
325
326 /* Real stack boundary as mandated by the appropriate ABI. */
327 #define ABI_STACK_BOUNDARY \
328 ((TARGET_EABI && !TARGET_ALTIVEC && !TARGET_ALTIVEC_ABI) ? 64 : 128)
329
330 /* An expression for the alignment of a structure field FIELD if the
331 alignment computed in the usual way is COMPUTED. */
332 #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
333 ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \
334 ? 128 : COMPUTED)
335
336 #undef BIGGEST_FIELD_ALIGNMENT
337
338 /* Use ELF style section commands. */
339
340 #define TEXT_SECTION_ASM_OP "\t.section\t\".text\""
341
342 #define DATA_SECTION_ASM_OP "\t.section\t\".data\""
343
344 #define BSS_SECTION_ASM_OP "\t.section\t\".bss\""
345
346 /* Override elfos.h definition. */
347 #undef INIT_SECTION_ASM_OP
348 #define INIT_SECTION_ASM_OP "\t.section\t\".init\",\"ax\""
349
350 /* Override elfos.h definition. */
351 #undef FINI_SECTION_ASM_OP
352 #define FINI_SECTION_ASM_OP "\t.section\t\".fini\",\"ax\""
353
354 #define TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\""
355
356 /* Put PC relative got entries in .got2. */
357 #define MINIMAL_TOC_SECTION_ASM_OP \
358 (TARGET_RELOCATABLE || (flag_pic && DEFAULT_ABI != ABI_AIX) \
359 ? "\t.section\t\".got2\",\"aw\"" : "\t.section\t\".got1\",\"aw\"")
360
361 #define SDATA_SECTION_ASM_OP "\t.section\t\".sdata\",\"aw\""
362 #define SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\""
363 #define SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits"
364
365 /* Override default elf definitions. */
366 #define TARGET_ASM_INIT_SECTIONS rs6000_elf_asm_init_sections
367 #undef TARGET_ASM_RELOC_RW_MASK
368 #define TARGET_ASM_RELOC_RW_MASK rs6000_elf_reloc_rw_mask
369 #undef TARGET_ASM_SELECT_RTX_SECTION
370 #define TARGET_ASM_SELECT_RTX_SECTION rs6000_elf_select_rtx_section
371
372 /* Return nonzero if this entry is to be written into the constant pool
373 in a special way. We do so if this is a SYMBOL_REF, LABEL_REF or a CONST
374 containing one of them. If -mfp-in-toc (the default), we also do
375 this for floating-point constants. We actually can only do this
376 if the FP formats of the target and host machines are the same, but
377 we can't check that since not every file that uses
378 GO_IF_LEGITIMATE_ADDRESS_P includes real.h.
379
380 Unlike AIX, we don't key off of -mminimal-toc, but instead do not
381 allow floating point constants in the TOC if -mrelocatable. */
382
383 #undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
384 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \
385 (TARGET_TOC \
386 && (GET_CODE (X) == SYMBOL_REF \
387 || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \
388 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \
389 || GET_CODE (X) == LABEL_REF \
390 || (GET_CODE (X) == CONST_INT \
391 && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \
392 || (!TARGET_NO_FP_IN_TOC \
393 && !TARGET_RELOCATABLE \
394 && GET_CODE (X) == CONST_DOUBLE \
395 && SCALAR_FLOAT_MODE_P (GET_MODE (X)) \
396 && BITS_PER_WORD == HOST_BITS_PER_INT)))
397
398 /* These macros generate the special .type and .size directives which
399 are used to set the corresponding fields of the linker symbol table
400 entries in an ELF object file under SVR4. These macros also output
401 the starting labels for the relevant functions/objects. */
402
403 /* Write the extra assembler code needed to declare a function properly.
404 Some svr4 assemblers need to also have something extra said about the
405 function's return value. We allow for that here. */
406
407 extern int rs6000_pic_labelno;
408
409 /* Override elfos.h definition. */
410 #undef ASM_DECLARE_FUNCTION_NAME
411 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
412 rs6000_elf_declare_function_name ((FILE), (NAME), (DECL))
413
414 /* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore
415 flag. The LOCAL_LABEL_PREFIX variable is used by dbxelf.h. */
416
417 #define LOCAL_LABEL_PREFIX "."
418 #define USER_LABEL_PREFIX ""
419
420 /* svr4.h overrides (*targetm.asm_out.internal_label). */
421
422 #define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \
423 asm_fprintf (FILE, "%L%s", PREFIX)
424
425 /* Globalizing directive for a label. */
426 #define GLOBAL_ASM_OP "\t.globl "
427
428 /* This says how to output assembler code to declare an
429 uninitialized internal linkage data object. Under SVR4,
430 the linker seems to want the alignment of data objects
431 to depend on their types. We do exactly that here. */
432
433 #define LOCAL_ASM_OP "\t.local\t"
434
435 #define LCOMM_ASM_OP "\t.lcomm\t"
436
437 /* Describe how to emit uninitialized local items. */
438 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
439 do { \
440 if ((DECL) && rs6000_elf_in_small_data_p (DECL)) \
441 { \
442 switch_to_section (sbss_section); \
443 ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \
444 ASM_OUTPUT_LABEL (FILE, NAME); \
445 ASM_OUTPUT_SKIP (FILE, SIZE); \
446 if (!flag_inhibit_size_directive && (SIZE) > 0) \
447 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \
448 } \
449 else \
450 { \
451 fprintf (FILE, "%s", LCOMM_ASM_OP); \
452 assemble_name ((FILE), (NAME)); \
453 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \
454 (SIZE), (ALIGN) / BITS_PER_UNIT); \
455 } \
456 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
457 } while (0)
458
459 /* Describe how to emit uninitialized external linkage items. */
460 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
461 do { \
462 ASM_OUTPUT_ALIGNED_DECL_LOCAL (FILE, DECL, NAME, SIZE, ALIGN); \
463 } while (0)
464
465 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
466 /* To support -falign-* switches we need to use .p2align so
467 that alignment directives in code sections will be padded
468 with no-op instructions, rather than zeroes. */
469 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
470 if ((LOG) != 0) \
471 { \
472 if ((MAX_SKIP) == 0) \
473 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
474 else \
475 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
476 }
477 #endif
478
479 /* This is how to output code to push a register on the stack.
480 It need not be very fast code.
481
482 On the rs6000, we must keep the backchain up to date. In order
483 to simplify things, always allocate 16 bytes for a push (System V
484 wants to keep stack aligned to a 16 byte boundary). */
485
486 #define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \
487 do { \
488 if (DEFAULT_ABI == ABI_V4) \
489 asm_fprintf (FILE, \
490 "\t{stu|stwu} %s,-16(%s)\n\t{st|stw} %s,12(%s)\n", \
491 reg_names[1], reg_names[1], reg_names[REGNO], \
492 reg_names[1]); \
493 } while (0)
494
495 /* This is how to output an insn to pop a register from the stack.
496 It need not be very fast code. */
497
498 #define ASM_OUTPUT_REG_POP(FILE, REGNO) \
499 do { \
500 if (DEFAULT_ABI == ABI_V4) \
501 asm_fprintf (FILE, \
502 "\t{l|lwz} %s,12(%s)\n\t{ai|addic} %s,%s,16\n", \
503 reg_names[REGNO], reg_names[1], reg_names[1], \
504 reg_names[1]); \
505 } while (0)
506
507 /* Switch Recognition by gcc.c. Add -G xx support. */
508
509 /* Override svr4.h definition. */
510 #undef SWITCH_TAKES_ARG
511 #define SWITCH_TAKES_ARG(CHAR) \
512 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
513 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
514 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
515 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
516 || (CHAR) == 'B' || (CHAR) == 'b' || (CHAR) == 'G')
517
518 extern int fixuplabelno;
519
520 /* Handle constructors specially for -mrelocatable. */
521 #define TARGET_ASM_CONSTRUCTOR rs6000_elf_asm_out_constructor
522 #define TARGET_ASM_DESTRUCTOR rs6000_elf_asm_out_destructor
523
524 /* This is the end of what might become sysv4.h. */
525
526 /* Use DWARF 2 debugging information by default. */
527 #undef PREFERRED_DEBUGGING_TYPE
528 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
529
530 /* Historically we have also supported stabs debugging. */
531 #define DBX_DEBUGGING_INFO 1
532
533 #define TARGET_ENCODE_SECTION_INFO rs6000_elf_encode_section_info
534 #define TARGET_IN_SMALL_DATA_P rs6000_elf_in_small_data_p
535
536 /* The ELF version doesn't encode [DS] or whatever at the end of symbols. */
537
538 #define RS6000_OUTPUT_BASENAME(FILE, NAME) \
539 assemble_name (FILE, NAME)
540
541 /* We have to output the stabs for the function name *first*, before
542 outputting its label. */
543
544 #define DBX_FUNCTION_FIRST
545
546 /* This is the end of what might become sysv4dbx.h. */
547
548 #ifndef TARGET_VERSION
549 #define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)");
550 #endif
551 \f
552 #define TARGET_OS_SYSV_CPP_BUILTINS() \
553 do \
554 { \
555 if (target_flags_explicit \
556 & MASK_RELOCATABLE) \
557 builtin_define ("_RELOCATABLE"); \
558 } \
559 while (0)
560
561 #ifndef TARGET_OS_CPP_BUILTINS
562 #define TARGET_OS_CPP_BUILTINS() \
563 do \
564 { \
565 builtin_define_std ("PPC"); \
566 builtin_define_std ("unix"); \
567 builtin_define ("__svr4__"); \
568 builtin_assert ("system=unix"); \
569 builtin_assert ("system=svr4"); \
570 builtin_assert ("cpu=powerpc"); \
571 builtin_assert ("machine=powerpc"); \
572 TARGET_OS_SYSV_CPP_BUILTINS (); \
573 } \
574 while (0)
575 #endif
576
577 /* Pass various options to the assembler. */
578 /* Override svr4.h definition. */
579 #undef ASM_SPEC
580 #define ASM_SPEC "%(asm_cpu) \
581 %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
582 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
583 %{mrelocatable} %{mrelocatable-lib} %{fpic|fpie|fPIC|fPIE:-K PIC} \
584 %{memb|msdata|msdata=eabi: -memb} \
585 %{mlittle|mlittle-endian:-mlittle; \
586 mbig|mbig-endian :-mbig; \
587 mcall-aixdesc | \
588 mcall-freebsd | \
589 mcall-netbsd | \
590 mcall-openbsd | \
591 mcall-linux | \
592 mcall-gnu :-mbig; \
593 mcall-i960-old :-mlittle}"
594
595 #define CC1_ENDIAN_BIG_SPEC ""
596
597 #define CC1_ENDIAN_LITTLE_SPEC "\
598 %{!mstrict-align: %{!mno-strict-align: \
599 %{!mcall-i960-old: \
600 -mstrict-align \
601 } \
602 }}"
603
604 #define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)"
605
606 #ifndef CC1_SECURE_PLT_DEFAULT_SPEC
607 #define CC1_SECURE_PLT_DEFAULT_SPEC ""
608 #endif
609
610 /* Pass -G xxx to the compiler and set correct endian mode. */
611 #define CC1_SPEC "%{G*} \
612 %{mlittle|mlittle-endian: %(cc1_endian_little); \
613 mbig |mbig-endian : %(cc1_endian_big); \
614 mcall-aixdesc | \
615 mcall-freebsd | \
616 mcall-netbsd | \
617 mcall-openbsd | \
618 mcall-linux | \
619 mcall-gnu : -mbig %(cc1_endian_big); \
620 mcall-i960-old : -mlittle %(cc1_endian_little); \
621 : %(cc1_endian_default)} \
622 %{meabi: %{!mcall-*: -mcall-sysv }} \
623 %{!meabi: %{!mno-eabi: \
624 %{mrelocatable: -meabi } \
625 %{mcall-freebsd: -mno-eabi } \
626 %{mcall-i960-old: -meabi } \
627 %{mcall-linux: -mno-eabi } \
628 %{mcall-gnu: -mno-eabi } \
629 %{mcall-netbsd: -mno-eabi } \
630 %{mcall-openbsd: -mno-eabi }}} \
631 %{msdata: -msdata=default} \
632 %{mno-sdata: -msdata=none} \
633 %{!mbss-plt: %{!msecure-plt: %(cc1_secure_plt_default)}} \
634 %{profile: -p}"
635
636 /* Don't put -Y P,<path> for cross compilers. */
637 #ifndef CROSS_DIRECTORY_STRUCTURE
638 #define LINK_PATH_SPEC "\
639 %{!R*:%{L*:-R %*}} \
640 %{!nostdlib: %{!YP,*: \
641 %{compat-bsd: \
642 %{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
643 %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
644 %{!R*: %{!L*: -R /usr/ucblib}} \
645 %{!compat-bsd: \
646 %{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
647 %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}}"
648
649 #else
650 #define LINK_PATH_SPEC ""
651 #endif
652
653 /* Default starting address if specified. */
654 #define LINK_START_SPEC "\
655 %{mads : %(link_start_ads) ; \
656 myellowknife : %(link_start_yellowknife) ; \
657 mmvme : %(link_start_mvme) ; \
658 msim : %(link_start_sim) ; \
659 mwindiss : %(link_start_windiss) ; \
660 mcall-freebsd: %(link_start_freebsd) ; \
661 mcall-linux : %(link_start_linux) ; \
662 mcall-gnu : %(link_start_gnu) ; \
663 mcall-netbsd : %(link_start_netbsd) ; \
664 mcall-openbsd: %(link_start_openbsd) ; \
665 : %(link_start_default) }"
666
667 #define LINK_START_DEFAULT_SPEC ""
668
669 /* Override svr4.h definition. */
670 #undef LINK_SPEC
671 #define LINK_SPEC "\
672 %{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \
673 %{YP,*} %{R*} \
674 %{Qy:} %{!Qn:-Qy} \
675 %(link_shlib) \
676 %{!Wl,-T*: %{!T*: %(link_start) }} \
677 %(link_target) \
678 %(link_os)"
679
680 /* For now, turn off shared libraries by default. */
681 #ifndef SHARED_LIB_SUPPORT
682 #define NO_SHARED_LIB_SUPPORT
683 #endif
684
685 #ifndef NO_SHARED_LIB_SUPPORT
686 /* Shared libraries are default. */
687 #define LINK_SHLIB_SPEC "\
688 %{!static: %(link_path) %{!R*:%{L*:-R %*}}} \
689 %{mshlib: } \
690 %{static:-dn -Bstatic} \
691 %{shared:-G -dy -z text} \
692 %{symbolic:-Bsymbolic -G -dy -z text}"
693
694 #else
695 /* Shared libraries are not default. */
696 #define LINK_SHLIB_SPEC "\
697 %{mshlib: %(link_path) } \
698 %{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \
699 %{static: } \
700 %{shared:-G -dy -z text %(link_path) } \
701 %{symbolic:-Bsymbolic -G -dy -z text %(link_path) }"
702 #endif
703
704 /* Override the default target of the linker. */
705 #define LINK_TARGET_SPEC "\
706 %{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \
707 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
708 %{mcall-i960-old: --oformat elf32-powerpcle} \
709 }}}}"
710
711 /* Any specific OS flags. */
712 #define LINK_OS_SPEC "\
713 %{mads : %(link_os_ads) ; \
714 myellowknife : %(link_os_yellowknife) ; \
715 mmvme : %(link_os_mvme) ; \
716 msim : %(link_os_sim) ; \
717 mwindiss : %(link_os_windiss) ; \
718 mcall-freebsd: %(link_os_freebsd) ; \
719 mcall-linux : %(link_os_linux) ; \
720 mcall-gnu : %(link_os_gnu) ; \
721 mcall-netbsd : %(link_os_netbsd) ; \
722 mcall-openbsd: %(link_os_openbsd) ; \
723 : %(link_os_default) }"
724
725 #define LINK_OS_DEFAULT_SPEC ""
726
727 /* Override rs6000.h definition. */
728 #undef CPP_SPEC
729 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
730 %{mads : %(cpp_os_ads) ; \
731 myellowknife : %(cpp_os_yellowknife) ; \
732 mmvme : %(cpp_os_mvme) ; \
733 msim : %(cpp_os_sim) ; \
734 mwindiss : %(cpp_os_windiss) ; \
735 mcall-freebsd: %(cpp_os_freebsd) ; \
736 mcall-linux : %(cpp_os_linux) ; \
737 mcall-gnu : %(cpp_os_gnu) ; \
738 mcall-netbsd : %(cpp_os_netbsd) ; \
739 mcall-openbsd: %(cpp_os_openbsd) ; \
740 : %(cpp_os_default) }"
741
742 #define CPP_OS_DEFAULT_SPEC ""
743
744 /* Override svr4.h definition. */
745 #undef STARTFILE_SPEC
746 #define STARTFILE_SPEC "\
747 %{mads : %(startfile_ads) ; \
748 myellowknife : %(startfile_yellowknife) ; \
749 mmvme : %(startfile_mvme) ; \
750 msim : %(startfile_sim) ; \
751 mwindiss : %(startfile_windiss) ; \
752 mcall-freebsd: %(startfile_freebsd) ; \
753 mcall-linux : %(startfile_linux) ; \
754 mcall-gnu : %(startfile_gnu) ; \
755 mcall-netbsd : %(startfile_netbsd) ; \
756 mcall-openbsd: %(startfile_openbsd) ; \
757 : %(startfile_default) }"
758
759 #define STARTFILE_DEFAULT_SPEC ""
760
761 /* Override svr4.h definition. */
762 #undef LIB_SPEC
763 #define LIB_SPEC "\
764 %{mads : %(lib_ads) ; \
765 myellowknife : %(lib_yellowknife) ; \
766 mmvme : %(lib_mvme) ; \
767 msim : %(lib_sim) ; \
768 mwindiss : %(lib_windiss) ; \
769 mcall-freebsd: %(lib_freebsd) ; \
770 mcall-linux : %(lib_linux) ; \
771 mcall-gnu : %(lib_gnu) ; \
772 mcall-netbsd : %(lib_netbsd) ; \
773 mcall-openbsd: %(lib_openbsd) ; \
774 : %(lib_default) }"
775
776 #define LIB_DEFAULT_SPEC ""
777
778 /* Override svr4.h definition. */
779 #undef ENDFILE_SPEC
780 #define ENDFILE_SPEC "\
781 %{mads : crtsavres.o%s %(endfile_ads) ; \
782 myellowknife : crtsavres.o%s %(endfile_yellowknife) ; \
783 mmvme : crtsavres.o%s %(endfile_mvme) ; \
784 msim : crtsavres.o%s %(endfile_sim) ; \
785 mwindiss : %(endfile_windiss) ; \
786 mcall-freebsd: crtsavres.o%s %(endfile_freebsd) ; \
787 mcall-linux : crtsavres.o%s %(endfile_linux) ; \
788 mcall-gnu : crtsavres.o%s %(endfile_gnu) ; \
789 mcall-netbsd : crtsavres.o%s %(endfile_netbsd) ; \
790 mcall-openbsd: crtsavres.o%s %(endfile_openbsd) ; \
791 : %(crtsavres_default) %(endfile_default) }"
792
793 #define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s"
794
795 #define ENDFILE_DEFAULT_SPEC ""
796
797 /* Motorola ADS support. */
798 #define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
799
800 #define STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
801
802 #define ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s"
803
804 #define LINK_START_ADS_SPEC "-T ads.ld%s"
805
806 #define LINK_OS_ADS_SPEC ""
807
808 #define CPP_OS_ADS_SPEC ""
809
810 /* Motorola Yellowknife support. */
811 #define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group"
812
813 #define STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
814
815 #define ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s"
816
817 #define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s"
818
819 #define LINK_OS_YELLOWKNIFE_SPEC ""
820
821 #define CPP_OS_YELLOWKNIFE_SPEC ""
822
823 /* Motorola MVME support. */
824 #define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group"
825
826 #define STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
827
828 #define ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s"
829
830 #define LINK_START_MVME_SPEC "-Ttext 0x40000"
831
832 #define LINK_OS_MVME_SPEC ""
833
834 #define CPP_OS_MVME_SPEC ""
835
836 /* PowerPC simulator based on netbsd system calls support. */
837 #define LIB_SIM_SPEC "--start-group -lsim -lc --end-group"
838
839 #define STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s"
840
841 #define ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s"
842
843 #define LINK_START_SIM_SPEC ""
844
845 #define LINK_OS_SIM_SPEC "-m elf32ppcsim"
846
847 #define CPP_OS_SIM_SPEC ""
848
849 /* FreeBSD support. */
850
851 #define CPP_OS_FREEBSD_SPEC "\
852 -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \
853 -Acpu=powerpc -Amachine=powerpc"
854
855 #define STARTFILE_FREEBSD_SPEC FBSD_STARTFILE_SPEC
856 #define ENDFILE_FREEBSD_SPEC FBSD_ENDFILE_SPEC
857 #define LIB_FREEBSD_SPEC FBSD_LIB_SPEC
858 #define LINK_START_FREEBSD_SPEC ""
859
860 #define LINK_OS_FREEBSD_SPEC "\
861 %{p:%nconsider using `-pg' instead of `-p' with gprof(1)} \
862 %{v:-V} \
863 %{assert*} %{R*} %{rpath*} %{defsym*} \
864 %{shared:-Bshareable %{h*} %{soname*}} \
865 %{!shared: \
866 %{!static: \
867 %{rdynamic: -export-dynamic} \
868 %{!dynamic-linker:-dynamic-linker %(fbsd_dynamic_linker) }} \
869 %{static:-Bstatic}} \
870 %{symbolic:-Bsymbolic}"
871
872 /* GNU/Linux support. */
873 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
874 %{!mnewlib: %{pthread:-lpthread} %{shared:-lc} \
875 %{!shared: %{profile:-lc_p} %{!profile:-lc}}}"
876
877 #ifdef HAVE_LD_PIE
878 #define STARTFILE_LINUX_SPEC "\
879 %{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
880 %{mnewlib:ecrti.o%s;:crti.o%s} \
881 %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
882 #else
883 #define STARTFILE_LINUX_SPEC "\
884 %{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \
885 %{mnewlib:ecrti.o%s;:crti.o%s} \
886 %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
887 #endif
888
889 #define ENDFILE_LINUX_SPEC "\
890 %{shared|pie:crtendS.o%s;:crtend.o%s} \
891 %{mnewlib:ecrtn.o%s;:crtn.o%s}"
892
893 #define LINK_START_LINUX_SPEC ""
894
895 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
896 #define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
897 #if UCLIBC_DEFAULT
898 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:%{muclibc:%e-mglibc and -muclibc used together}" G ";:" U "}"
899 #else
900 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:%{mglibc:%e-mglibc and -muclibc used together}" U ";:" G "}"
901 #endif
902 #define LINUX_DYNAMIC_LINKER \
903 CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER)
904
905 #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
906 %{rdynamic:-export-dynamic} \
907 %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}}}"
908
909 #if defined(HAVE_LD_EH_FRAME_HDR)
910 # define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
911 #endif
912
913 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
914 %{!undef: \
915 %{!ansi: \
916 %{!std=*:-Dunix -D__unix -Dlinux -D__linux} \
917 %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \
918 -Asystem=linux -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
919
920 /* GNU/Hurd support. */
921 #define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \
922 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
923 %{profile:-lc_p} %{!profile:-lc}}}"
924
925 #define STARTFILE_GNU_SPEC "\
926 %{!shared: %{!static: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}} \
927 %{static: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
928 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
929 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
930
931 #define ENDFILE_GNU_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
932 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
933
934 #define LINK_START_GNU_SPEC ""
935
936 #define LINK_OS_GNU_SPEC "-m elf32ppclinux %{!shared: %{!static: \
937 %{rdynamic:-export-dynamic} \
938 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
939
940 #define CPP_OS_GNU_SPEC "-D__unix__ -D__gnu_hurd__ -D__GNU__ \
941 %{!undef: \
942 %{!ansi: -Dunix -D__unix}} \
943 -Asystem=gnu -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
944
945 /* NetBSD support. */
946 #define LIB_NETBSD_SPEC "\
947 %{profile:-lgmon -lc_p} %{!profile:-lc}"
948
949 #define STARTFILE_NETBSD_SPEC "\
950 ncrti.o%s crt0.o%s \
951 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
952
953 #define ENDFILE_NETBSD_SPEC "\
954 %{!shared:crtend.o%s} %{shared:crtendS.o%s} \
955 ncrtn.o%s"
956
957 #define LINK_START_NETBSD_SPEC "\
958 "
959
960 #define LINK_OS_NETBSD_SPEC "\
961 %{!shared: %{!static: \
962 %{rdynamic:-export-dynamic} \
963 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}}"
964
965 #define CPP_OS_NETBSD_SPEC "\
966 -D__powerpc__ -D__NetBSD__ -D__KPRINTF_ATTRIBUTE__"
967
968 /* OpenBSD support. */
969 #ifndef LIB_OPENBSD_SPEC
970 #define LIB_OPENBSD_SPEC "%{!shared:%{pthread:-lpthread%{p:_p}%{!p:%{pg:_p}}}} %{!shared:-lc%{p:_p}%{!p:%{pg:_p}}}"
971 #endif
972
973 #ifndef STARTFILE_OPENBSD_SPEC
974 #define STARTFILE_OPENBSD_SPEC "\
975 %{!shared: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
976 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
977 #endif
978
979 #ifndef ENDFILE_OPENBSD_SPEC
980 #define ENDFILE_OPENBSD_SPEC "\
981 %{!shared:crtend.o%s} %{shared:crtendS.o%s}"
982 #endif
983
984 #ifndef LINK_START_OPENBSD_SPEC
985 #define LINK_START_OPENBSD_SPEC "-Ttext 0x400074"
986 #endif
987
988 #ifndef LINK_OS_OPENBSD_SPEC
989 #define LINK_OS_OPENBSD_SPEC ""
990 #endif
991
992 #ifndef CPP_OS_OPENBSD_SPEC
993 #define CPP_OS_OPENBSD_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}"
994 #endif
995
996 /* WindISS support. */
997
998 #define LIB_WINDISS_SPEC "--start-group -li -lcfp -lwindiss -lram -limpl -limpfp --end-group"
999
1000 #define CPP_OS_WINDISS_SPEC "\
1001 -D__rtasim \
1002 -D__EABI__ \
1003 -D__ppc \
1004 %{!msoft-float: -D__hardfp} \
1005 "
1006
1007 #define STARTFILE_WINDISS_SPEC "crt0.o%s crtbegin.o%s"
1008
1009 #define ENDFILE_WINDISS_SPEC "crtend.o%s"
1010
1011 #define LINK_START_WINDISS_SPEC ""
1012
1013 #define LINK_OS_WINDISS_SPEC ""
1014
1015 /* Define any extra SPECS that the compiler needs to generate. */
1016 /* Override rs6000.h definition. */
1017 #undef SUBTARGET_EXTRA_SPECS
1018 #define SUBTARGET_EXTRA_SPECS \
1019 { "crtsavres_default", CRTSAVRES_DEFAULT_SPEC }, \
1020 { "lib_ads", LIB_ADS_SPEC }, \
1021 { "lib_yellowknife", LIB_YELLOWKNIFE_SPEC }, \
1022 { "lib_mvme", LIB_MVME_SPEC }, \
1023 { "lib_sim", LIB_SIM_SPEC }, \
1024 { "lib_freebsd", LIB_FREEBSD_SPEC }, \
1025 { "lib_gnu", LIB_GNU_SPEC }, \
1026 { "lib_linux", LIB_LINUX_SPEC }, \
1027 { "lib_netbsd", LIB_NETBSD_SPEC }, \
1028 { "lib_openbsd", LIB_OPENBSD_SPEC }, \
1029 { "lib_windiss", LIB_WINDISS_SPEC }, \
1030 { "lib_default", LIB_DEFAULT_SPEC }, \
1031 { "startfile_ads", STARTFILE_ADS_SPEC }, \
1032 { "startfile_yellowknife", STARTFILE_YELLOWKNIFE_SPEC }, \
1033 { "startfile_mvme", STARTFILE_MVME_SPEC }, \
1034 { "startfile_sim", STARTFILE_SIM_SPEC }, \
1035 { "startfile_freebsd", STARTFILE_FREEBSD_SPEC }, \
1036 { "startfile_gnu", STARTFILE_GNU_SPEC }, \
1037 { "startfile_linux", STARTFILE_LINUX_SPEC }, \
1038 { "startfile_netbsd", STARTFILE_NETBSD_SPEC }, \
1039 { "startfile_openbsd", STARTFILE_OPENBSD_SPEC }, \
1040 { "startfile_windiss", STARTFILE_WINDISS_SPEC }, \
1041 { "startfile_default", STARTFILE_DEFAULT_SPEC }, \
1042 { "endfile_ads", ENDFILE_ADS_SPEC }, \
1043 { "endfile_yellowknife", ENDFILE_YELLOWKNIFE_SPEC }, \
1044 { "endfile_mvme", ENDFILE_MVME_SPEC }, \
1045 { "endfile_sim", ENDFILE_SIM_SPEC }, \
1046 { "endfile_freebsd", ENDFILE_FREEBSD_SPEC }, \
1047 { "endfile_gnu", ENDFILE_GNU_SPEC }, \
1048 { "endfile_linux", ENDFILE_LINUX_SPEC }, \
1049 { "endfile_netbsd", ENDFILE_NETBSD_SPEC }, \
1050 { "endfile_openbsd", ENDFILE_OPENBSD_SPEC }, \
1051 { "endfile_windiss", ENDFILE_WINDISS_SPEC }, \
1052 { "endfile_default", ENDFILE_DEFAULT_SPEC }, \
1053 { "link_path", LINK_PATH_SPEC }, \
1054 { "link_shlib", LINK_SHLIB_SPEC }, \
1055 { "link_target", LINK_TARGET_SPEC }, \
1056 { "link_start", LINK_START_SPEC }, \
1057 { "link_start_ads", LINK_START_ADS_SPEC }, \
1058 { "link_start_yellowknife", LINK_START_YELLOWKNIFE_SPEC }, \
1059 { "link_start_mvme", LINK_START_MVME_SPEC }, \
1060 { "link_start_sim", LINK_START_SIM_SPEC }, \
1061 { "link_start_freebsd", LINK_START_FREEBSD_SPEC }, \
1062 { "link_start_gnu", LINK_START_GNU_SPEC }, \
1063 { "link_start_linux", LINK_START_LINUX_SPEC }, \
1064 { "link_start_netbsd", LINK_START_NETBSD_SPEC }, \
1065 { "link_start_openbsd", LINK_START_OPENBSD_SPEC }, \
1066 { "link_start_windiss", LINK_START_WINDISS_SPEC }, \
1067 { "link_start_default", LINK_START_DEFAULT_SPEC }, \
1068 { "link_os", LINK_OS_SPEC }, \
1069 { "link_os_ads", LINK_OS_ADS_SPEC }, \
1070 { "link_os_yellowknife", LINK_OS_YELLOWKNIFE_SPEC }, \
1071 { "link_os_mvme", LINK_OS_MVME_SPEC }, \
1072 { "link_os_sim", LINK_OS_SIM_SPEC }, \
1073 { "link_os_freebsd", LINK_OS_FREEBSD_SPEC }, \
1074 { "link_os_linux", LINK_OS_LINUX_SPEC }, \
1075 { "link_os_gnu", LINK_OS_GNU_SPEC }, \
1076 { "link_os_netbsd", LINK_OS_NETBSD_SPEC }, \
1077 { "link_os_openbsd", LINK_OS_OPENBSD_SPEC }, \
1078 { "link_os_windiss", LINK_OS_WINDISS_SPEC }, \
1079 { "link_os_default", LINK_OS_DEFAULT_SPEC }, \
1080 { "cc1_endian_big", CC1_ENDIAN_BIG_SPEC }, \
1081 { "cc1_endian_little", CC1_ENDIAN_LITTLE_SPEC }, \
1082 { "cc1_endian_default", CC1_ENDIAN_DEFAULT_SPEC }, \
1083 { "cc1_secure_plt_default", CC1_SECURE_PLT_DEFAULT_SPEC }, \
1084 { "cpp_os_ads", CPP_OS_ADS_SPEC }, \
1085 { "cpp_os_yellowknife", CPP_OS_YELLOWKNIFE_SPEC }, \
1086 { "cpp_os_mvme", CPP_OS_MVME_SPEC }, \
1087 { "cpp_os_sim", CPP_OS_SIM_SPEC }, \
1088 { "cpp_os_freebsd", CPP_OS_FREEBSD_SPEC }, \
1089 { "cpp_os_gnu", CPP_OS_GNU_SPEC }, \
1090 { "cpp_os_linux", CPP_OS_LINUX_SPEC }, \
1091 { "cpp_os_netbsd", CPP_OS_NETBSD_SPEC }, \
1092 { "cpp_os_openbsd", CPP_OS_OPENBSD_SPEC }, \
1093 { "cpp_os_windiss", CPP_OS_WINDISS_SPEC }, \
1094 { "cpp_os_default", CPP_OS_DEFAULT_SPEC }, \
1095 { "fbsd_dynamic_linker", FBSD_DYNAMIC_LINKER }, \
1096 SUBSUBTARGET_EXTRA_SPECS
1097
1098 #define SUBSUBTARGET_EXTRA_SPECS
1099
1100 /* Define this macro as a C expression for the initializer of an
1101 array of string to tell the driver program which options are
1102 defaults for this target and thus do not need to be handled
1103 specially when using `MULTILIB_OPTIONS'.
1104
1105 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
1106 the target makefile fragment or if none of the options listed in
1107 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
1108
1109 #define MULTILIB_DEFAULTS { "mbig", "mcall-sysv" }
1110
1111 /* Define this macro if the code for function profiling should come
1112 before the function prologue. Normally, the profiling code comes
1113 after. */
1114 #define PROFILE_BEFORE_PROLOGUE 1
1115
1116 /* Function name to call to do profiling. */
1117 #define RS6000_MCOUNT "_mcount"
1118
1119 /* Define this macro (to a value of 1) if you want to support the
1120 Win32 style pragmas #pragma pack(push,<n>)' and #pragma
1121 pack(pop)'. The pack(push,<n>) pragma specifies the maximum
1122 alignment (in bytes) of fields within a structure, in much the
1123 same way as the __aligned__' and __packed__' __attribute__'s
1124 do. A pack value of zero resets the behavior to the default.
1125 Successive invocations of this pragma cause the previous values to
1126 be stacked, so that invocations of #pragma pack(pop)' will return
1127 to the previous value. */
1128
1129 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
1130
1131 /* Select a format to encode pointers in exception handling data. CODE
1132 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
1133 true if the symbol may be affected by dynamic relocations. */
1134 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
1135 ((flag_pic || TARGET_RELOCATABLE) \
1136 ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \
1137 : DW_EH_PE_absptr)
1138
1139 #define DOUBLE_INT_ASM_OP "\t.quad\t"
1140
1141 /* Generate entries in .fixup for relocatable addresses. */
1142 #define RELOCATABLE_NEEDS_FIXUP 1
1143
1144 /* This target uses the sysv4.opt file. */
1145 #define TARGET_USES_SYSV4_OPT 1
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