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* config/rs6000/rs6000.md (popcount<mode>2): Rewrite.
[official-gcc.git] / gcc / config / rs6000 / sysv4.h
blobd7c10028a7999e45c9891dab55c39f70ceafc85e
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 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_SELECT_RTX_SECTION
368 #define TARGET_ASM_SELECT_RTX_SECTION rs6000_elf_select_rtx_section
369 #undef TARGET_ASM_SELECT_SECTION
370 #define TARGET_ASM_SELECT_SECTION rs6000_elf_select_section
371 #define TARGET_ASM_UNIQUE_SECTION rs6000_elf_unique_section
372
373 /* Return nonzero if this entry is to be written into the constant pool
374 in a special way. We do so if this is a SYMBOL_REF, LABEL_REF or a CONST
375 containing one of them. If -mfp-in-toc (the default), we also do
376 this for floating-point constants. We actually can only do this
377 if the FP formats of the target and host machines are the same, but
378 we can't check that since not every file that uses
379 GO_IF_LEGITIMATE_ADDRESS_P includes real.h.
380
381 Unlike AIX, we don't key off of -mminimal-toc, but instead do not
382 allow floating point constants in the TOC if -mrelocatable. */
383
384 #undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
385 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \
386 (TARGET_TOC \
387 && (GET_CODE (X) == SYMBOL_REF \
388 || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \
389 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \
390 || GET_CODE (X) == LABEL_REF \
391 || (GET_CODE (X) == CONST_INT \
392 && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \
393 || (!TARGET_NO_FP_IN_TOC \
394 && !TARGET_RELOCATABLE \
395 && GET_CODE (X) == CONST_DOUBLE \
396 && SCALAR_FLOAT_MODE_P (GET_MODE (X)) \
397 && BITS_PER_WORD == HOST_BITS_PER_INT)))
398
399 /* These macros generate the special .type and .size directives which
400 are used to set the corresponding fields of the linker symbol table
401 entries in an ELF object file under SVR4. These macros also output
402 the starting labels for the relevant functions/objects. */
403
404 /* Write the extra assembler code needed to declare a function properly.
405 Some svr4 assemblers need to also have something extra said about the
406 function's return value. We allow for that here. */
407
408 extern int rs6000_pic_labelno;
409
410 /* Override elfos.h definition. */
411 #undef ASM_DECLARE_FUNCTION_NAME
412 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
413 rs6000_elf_declare_function_name ((FILE), (NAME), (DECL))
414
415 /* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore
416 flag. The LOCAL_LABEL_PREFIX variable is used by dbxelf.h. */
417
418 #define LOCAL_LABEL_PREFIX "."
419 #define USER_LABEL_PREFIX ""
420
421 /* svr4.h overrides (*targetm.asm_out.internal_label). */
422
423 #define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \
424 asm_fprintf (FILE, "%L%s", PREFIX)
425
426 /* Globalizing directive for a label. */
427 #define GLOBAL_ASM_OP "\t.globl "
428
429 /* This says how to output assembler code to declare an
430 uninitialized internal linkage data object. Under SVR4,
431 the linker seems to want the alignment of data objects
432 to depend on their types. We do exactly that here. */
433
434 #define LOCAL_ASM_OP "\t.local\t"
435
436 #define LCOMM_ASM_OP "\t.lcomm\t"
437
438 /* Describe how to emit uninitialized local items. */
439 #define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
440 do { \
441 if ((DECL) && rs6000_elf_in_small_data_p (DECL)) \
442 { \
443 switch_to_section (sbss_section); \
444 ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \
445 ASM_OUTPUT_LABEL (FILE, NAME); \
446 ASM_OUTPUT_SKIP (FILE, SIZE); \
447 if (!flag_inhibit_size_directive && (SIZE) > 0) \
448 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \
449 } \
450 else \
451 { \
452 fprintf (FILE, "%s", LCOMM_ASM_OP); \
453 assemble_name ((FILE), (NAME)); \
454 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \
455 (SIZE), (ALIGN) / BITS_PER_UNIT); \
456 } \
457 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
458 } while (0)
459
460 /* Describe how to emit uninitialized external linkage items. */
461 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
462 do { \
463 ASM_OUTPUT_ALIGNED_DECL_LOCAL (FILE, DECL, NAME, SIZE, ALIGN); \
464 } while (0)
465
466 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
467 /* To support -falign-* switches we need to use .p2align so
468 that alignment directives in code sections will be padded
469 with no-op instructions, rather than zeroes. */
470 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
471 if ((LOG) != 0) \
472 { \
473 if ((MAX_SKIP) == 0) \
474 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
475 else \
476 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
477 }
478 #endif
479
480 /* This is how to output code to push a register on the stack.
481 It need not be very fast code.
482
483 On the rs6000, we must keep the backchain up to date. In order
484 to simplify things, always allocate 16 bytes for a push (System V
485 wants to keep stack aligned to a 16 byte boundary). */
486
487 #define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \
488 do { \
489 if (DEFAULT_ABI == ABI_V4) \
490 asm_fprintf (FILE, \
491 "\t{stu|stwu} %s,-16(%s)\n\t{st|stw} %s,12(%s)\n", \
492 reg_names[1], reg_names[1], reg_names[REGNO], \
493 reg_names[1]); \
494 } while (0)
495
496 /* This is how to output an insn to pop a register from the stack.
497 It need not be very fast code. */
498
499 #define ASM_OUTPUT_REG_POP(FILE, REGNO) \
500 do { \
501 if (DEFAULT_ABI == ABI_V4) \
502 asm_fprintf (FILE, \
503 "\t{l|lwz} %s,12(%s)\n\t{ai|addic} %s,%s,16\n", \
504 reg_names[REGNO], reg_names[1], reg_names[1], \
505 reg_names[1]); \
506 } while (0)
507
508 /* Switch Recognition by gcc.c. Add -G xx support. */
509
510 /* Override svr4.h definition. */
511 #undef SWITCH_TAKES_ARG
512 #define SWITCH_TAKES_ARG(CHAR) \
513 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
514 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
515 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
516 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
517 || (CHAR) == 'B' || (CHAR) == 'b' || (CHAR) == 'G')
518
519 extern int fixuplabelno;
520
521 /* Handle constructors specially for -mrelocatable. */
522 #define TARGET_ASM_CONSTRUCTOR rs6000_elf_asm_out_constructor
523 #define TARGET_ASM_DESTRUCTOR rs6000_elf_asm_out_destructor
524
525 /* This is the end of what might become sysv4.h. */
526
527 /* Use DWARF 2 debugging information by default. */
528 #undef PREFERRED_DEBUGGING_TYPE
529 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
530
531 /* Historically we have also supported stabs debugging. */
532 #define DBX_DEBUGGING_INFO 1
533
534 #define TARGET_ENCODE_SECTION_INFO rs6000_elf_encode_section_info
535 #define TARGET_IN_SMALL_DATA_P rs6000_elf_in_small_data_p
536 #define TARGET_SECTION_TYPE_FLAGS rs6000_elf_section_type_flags
537
538 /* The ELF version doesn't encode [DS] or whatever at the end of symbols. */
539
540 #define RS6000_OUTPUT_BASENAME(FILE, NAME) \
541 assemble_name (FILE, NAME)
542
543 /* We have to output the stabs for the function name *first*, before
544 outputting its label. */
545
546 #define DBX_FUNCTION_FIRST
547
548 /* This is the end of what might become sysv4dbx.h. */
549
550 #ifndef TARGET_VERSION
551 #define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)");
552 #endif
553 \f
554 #define TARGET_OS_SYSV_CPP_BUILTINS() \
555 do \
556 { \
557 if (target_flags_explicit \
558 & MASK_RELOCATABLE) \
559 builtin_define ("_RELOCATABLE"); \
560 } \
561 while (0)
562
563 #ifndef TARGET_OS_CPP_BUILTINS
564 #define TARGET_OS_CPP_BUILTINS() \
565 do \
566 { \
567 builtin_define_std ("PPC"); \
568 builtin_define_std ("unix"); \
569 builtin_define ("__svr4__"); \
570 builtin_assert ("system=unix"); \
571 builtin_assert ("system=svr4"); \
572 builtin_assert ("cpu=powerpc"); \
573 builtin_assert ("machine=powerpc"); \
574 TARGET_OS_SYSV_CPP_BUILTINS (); \
575 } \
576 while (0)
577 #endif
578
579 /* Pass various options to the assembler. */
580 /* Override svr4.h definition. */
581 #undef ASM_SPEC
582 #define ASM_SPEC "%(asm_cpu) \
583 %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
584 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
585 %{mrelocatable} %{mrelocatable-lib} %{fpic|fpie|fPIC|fPIE:-K PIC} \
586 %{memb|msdata|msdata=eabi: -memb} \
587 %{mlittle|mlittle-endian:-mlittle; \
588 mbig|mbig-endian :-mbig; \
589 mcall-aixdesc | \
590 mcall-freebsd | \
591 mcall-netbsd | \
592 mcall-openbsd | \
593 mcall-linux | \
594 mcall-gnu :-mbig; \
595 mcall-i960-old :-mlittle}"
596
597 #define CC1_ENDIAN_BIG_SPEC ""
598
599 #define CC1_ENDIAN_LITTLE_SPEC "\
600 %{!mstrict-align: %{!mno-strict-align: \
601 %{!mcall-i960-old: \
602 -mstrict-align \
603 } \
604 }}"
605
606 #define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)"
607
608 #ifndef CC1_SECURE_PLT_DEFAULT_SPEC
609 #define CC1_SECURE_PLT_DEFAULT_SPEC ""
610 #endif
611
612 /* Pass -G xxx to the compiler and set correct endian mode. */
613 #define CC1_SPEC "%{G*} \
614 %{mlittle|mlittle-endian: %(cc1_endian_little); \
615 mbig |mbig-endian : %(cc1_endian_big); \
616 mcall-aixdesc | \
617 mcall-freebsd | \
618 mcall-netbsd | \
619 mcall-openbsd | \
620 mcall-linux | \
621 mcall-gnu : -mbig %(cc1_endian_big); \
622 mcall-i960-old : -mlittle %(cc1_endian_little); \
623 : %(cc1_endian_default)} \
624 %{meabi: %{!mcall-*: -mcall-sysv }} \
625 %{!meabi: %{!mno-eabi: \
626 %{mrelocatable: -meabi } \
627 %{mcall-freebsd: -mno-eabi } \
628 %{mcall-i960-old: -meabi } \
629 %{mcall-linux: -mno-eabi } \
630 %{mcall-gnu: -mno-eabi } \
631 %{mcall-netbsd: -mno-eabi } \
632 %{mcall-openbsd: -mno-eabi }}} \
633 %{msdata: -msdata=default} \
634 %{mno-sdata: -msdata=none} \
635 %{!mbss-plt: %{!msecure-plt: %(cc1_secure_plt_default)}} \
636 %{profile: -p}"
637
638 /* Don't put -Y P,<path> for cross compilers. */
639 #ifndef CROSS_DIRECTORY_STRUCTURE
640 #define LINK_PATH_SPEC "\
641 %{!R*:%{L*:-R %*}} \
642 %{!nostdlib: %{!YP,*: \
643 %{compat-bsd: \
644 %{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
645 %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
646 %{!R*: %{!L*: -R /usr/ucblib}} \
647 %{!compat-bsd: \
648 %{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
649 %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}}"
650
651 #else
652 #define LINK_PATH_SPEC ""
653 #endif
654
655 /* Default starting address if specified. */
656 #define LINK_START_SPEC "\
657 %{mads : %(link_start_ads) ; \
658 myellowknife : %(link_start_yellowknife) ; \
659 mmvme : %(link_start_mvme) ; \
660 msim : %(link_start_sim) ; \
661 mwindiss : %(link_start_windiss) ; \
662 mcall-freebsd: %(link_start_freebsd) ; \
663 mcall-linux : %(link_start_linux) ; \
664 mcall-gnu : %(link_start_gnu) ; \
665 mcall-netbsd : %(link_start_netbsd) ; \
666 mcall-openbsd: %(link_start_openbsd) ; \
667 : %(link_start_default) }"
668
669 #define LINK_START_DEFAULT_SPEC ""
670
671 /* Override svr4.h definition. */
672 #undef LINK_SPEC
673 #define LINK_SPEC "\
674 %{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \
675 %{YP,*} %{R*} \
676 %{Qy:} %{!Qn:-Qy} \
677 %(link_shlib) \
678 %{!Wl,-T*: %{!T*: %(link_start) }} \
679 %(link_target) \
680 %(link_os)"
681
682 /* For now, turn off shared libraries by default. */
683 #ifndef SHARED_LIB_SUPPORT
684 #define NO_SHARED_LIB_SUPPORT
685 #endif
686
687 #ifndef NO_SHARED_LIB_SUPPORT
688 /* Shared libraries are default. */
689 #define LINK_SHLIB_SPEC "\
690 %{!static: %(link_path) %{!R*:%{L*:-R %*}}} \
691 %{mshlib: } \
692 %{static:-dn -Bstatic} \
693 %{shared:-G -dy -z text} \
694 %{symbolic:-Bsymbolic -G -dy -z text}"
695
696 #else
697 /* Shared libraries are not default. */
698 #define LINK_SHLIB_SPEC "\
699 %{mshlib: %(link_path) } \
700 %{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \
701 %{static: } \
702 %{shared:-G -dy -z text %(link_path) } \
703 %{symbolic:-Bsymbolic -G -dy -z text %(link_path) }"
704 #endif
705
706 /* Override the default target of the linker. */
707 #define LINK_TARGET_SPEC "\
708 %{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \
709 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
710 %{mcall-i960-old: --oformat elf32-powerpcle} \
711 }}}}"
712
713 /* Any specific OS flags. */
714 #define LINK_OS_SPEC "\
715 %{mads : %(link_os_ads) ; \
716 myellowknife : %(link_os_yellowknife) ; \
717 mmvme : %(link_os_mvme) ; \
718 msim : %(link_os_sim) ; \
719 mwindiss : %(link_os_windiss) ; \
720 mcall-freebsd: %(link_os_freebsd) ; \
721 mcall-linux : %(link_os_linux) ; \
722 mcall-gnu : %(link_os_gnu) ; \
723 mcall-netbsd : %(link_os_netbsd) ; \
724 mcall-openbsd: %(link_os_openbsd) ; \
725 : %(link_os_default) }"
726
727 #define LINK_OS_DEFAULT_SPEC ""
728
729 /* Override rs6000.h definition. */
730 #undef CPP_SPEC
731 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
732 %{mads : %(cpp_os_ads) ; \
733 myellowknife : %(cpp_os_yellowknife) ; \
734 mmvme : %(cpp_os_mvme) ; \
735 msim : %(cpp_os_sim) ; \
736 mwindiss : %(cpp_os_windiss) ; \
737 mcall-freebsd: %(cpp_os_freebsd) ; \
738 mcall-linux : %(cpp_os_linux) ; \
739 mcall-gnu : %(cpp_os_gnu) ; \
740 mcall-netbsd : %(cpp_os_netbsd) ; \
741 mcall-openbsd: %(cpp_os_openbsd) ; \
742 : %(cpp_os_default) }"
743
744 #define CPP_OS_DEFAULT_SPEC ""
745
746 /* Override svr4.h definition. */
747 #undef STARTFILE_SPEC
748 #define STARTFILE_SPEC "\
749 %{mads : %(startfile_ads) ; \
750 myellowknife : %(startfile_yellowknife) ; \
751 mmvme : %(startfile_mvme) ; \
752 msim : %(startfile_sim) ; \
753 mwindiss : %(startfile_windiss) ; \
754 mcall-freebsd: %(startfile_freebsd) ; \
755 mcall-linux : %(startfile_linux) ; \
756 mcall-gnu : %(startfile_gnu) ; \
757 mcall-netbsd : %(startfile_netbsd) ; \
758 mcall-openbsd: %(startfile_openbsd) ; \
759 : %(startfile_default) }"
760
761 #define STARTFILE_DEFAULT_SPEC ""
762
763 /* Override svr4.h definition. */
764 #undef LIB_SPEC
765 #define LIB_SPEC "\
766 %{mads : %(lib_ads) ; \
767 myellowknife : %(lib_yellowknife) ; \
768 mmvme : %(lib_mvme) ; \
769 msim : %(lib_sim) ; \
770 mwindiss : %(lib_windiss) ; \
771 mcall-freebsd: %(lib_freebsd) ; \
772 mcall-linux : %(lib_linux) ; \
773 mcall-gnu : %(lib_gnu) ; \
774 mcall-netbsd : %(lib_netbsd) ; \
775 mcall-openbsd: %(lib_openbsd) ; \
776 : %(lib_default) }"
777
778 #define LIB_DEFAULT_SPEC ""
779
780 /* Override svr4.h definition. */
781 #undef ENDFILE_SPEC
782 #define ENDFILE_SPEC "\
783 %{mads : crtsavres.o%s %(endfile_ads) ; \
784 myellowknife : crtsavres.o%s %(endfile_yellowknife) ; \
785 mmvme : crtsavres.o%s %(endfile_mvme) ; \
786 msim : crtsavres.o%s %(endfile_sim) ; \
787 mwindiss : %(endfile_windiss) ; \
788 mcall-freebsd: crtsavres.o%s %(endfile_freebsd) ; \
789 mcall-linux : crtsavres.o%s %(endfile_linux) ; \
790 mcall-gnu : crtsavres.o%s %(endfile_gnu) ; \
791 mcall-netbsd : crtsavres.o%s %(endfile_netbsd) ; \
792 mcall-openbsd: crtsavres.o%s %(endfile_openbsd) ; \
793 : %(crtsavres_default) %(endfile_default) }"
794
795 #define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s"
796
797 #define ENDFILE_DEFAULT_SPEC ""
798
799 /* Motorola ADS support. */
800 #define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
801
802 #define STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
803
804 #define ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s"
805
806 #define LINK_START_ADS_SPEC "-T ads.ld%s"
807
808 #define LINK_OS_ADS_SPEC ""
809
810 #define CPP_OS_ADS_SPEC ""
811
812 /* Motorola Yellowknife support. */
813 #define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group"
814
815 #define STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
816
817 #define ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s"
818
819 #define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s"
820
821 #define LINK_OS_YELLOWKNIFE_SPEC ""
822
823 #define CPP_OS_YELLOWKNIFE_SPEC ""
824
825 /* Motorola MVME support. */
826 #define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group"
827
828 #define STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
829
830 #define ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s"
831
832 #define LINK_START_MVME_SPEC "-Ttext 0x40000"
833
834 #define LINK_OS_MVME_SPEC ""
835
836 #define CPP_OS_MVME_SPEC ""
837
838 /* PowerPC simulator based on netbsd system calls support. */
839 #define LIB_SIM_SPEC "--start-group -lsim -lc --end-group"
840
841 #define STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s"
842
843 #define ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s"
844
845 #define LINK_START_SIM_SPEC ""
846
847 #define LINK_OS_SIM_SPEC "-m elf32ppcsim"
848
849 #define CPP_OS_SIM_SPEC ""
850
851 /* FreeBSD support. */
852
853 #define CPP_OS_FREEBSD_SPEC "\
854 -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \
855 -Acpu=powerpc -Amachine=powerpc"
856
857 #define STARTFILE_FREEBSD_SPEC FBSD_STARTFILE_SPEC
858 #define ENDFILE_FREEBSD_SPEC FBSD_ENDFILE_SPEC
859 #define LIB_FREEBSD_SPEC FBSD_LIB_SPEC
860 #define LINK_START_FREEBSD_SPEC ""
861
862 #define LINK_OS_FREEBSD_SPEC "\
863 %{p:%nconsider using `-pg' instead of `-p' with gprof(1)} \
864 %{v:-V} \
865 %{assert*} %{R*} %{rpath*} %{defsym*} \
866 %{shared:-Bshareable %{h*} %{soname*}} \
867 %{!shared: \
868 %{!static: \
869 %{rdynamic: -export-dynamic} \
870 %{!dynamic-linker:-dynamic-linker %(fbsd_dynamic_linker) }} \
871 %{static:-Bstatic}} \
872 %{symbolic:-Bsymbolic}"
873
874 /* GNU/Linux support. */
875 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
876 %{!mnewlib: %{pthread:-lpthread} %{shared:-lc} \
877 %{!shared: %{profile:-lc_p} %{!profile:-lc}}}"
878
879 #ifdef HAVE_LD_PIE
880 #define STARTFILE_LINUX_SPEC "\
881 %{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
882 %{mnewlib:ecrti.o%s;:crti.o%s} \
883 %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
884 #else
885 #define STARTFILE_LINUX_SPEC "\
886 %{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \
887 %{mnewlib:ecrti.o%s;:crti.o%s} \
888 %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
889 #endif
890
891 #define ENDFILE_LINUX_SPEC "\
892 %{shared|pie:crtendS.o%s;:crtend.o%s} \
893 %{mnewlib:ecrtn.o%s;:crtn.o%s}"
894
895 #define LINK_START_LINUX_SPEC ""
896
897 #define GLIBC_DYNAMIC_LINKER "/lib/ld.so.1"
898 #define UCLIBC_DYNAMIC_LINKER "/lib/ld-uClibc.so.0"
899 #if UCLIBC_DEFAULT
900 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{mglibc:%{muclibc:%e-mglibc and -muclibc used together}" G ";:" U "}"
901 #else
902 #define CHOOSE_DYNAMIC_LINKER(G, U) "%{muclibc:%{mglibc:%e-mglibc and -muclibc used together}" U ";:" G "}"
903 #endif
904 #define LINUX_DYNAMIC_LINKER \
905 CHOOSE_DYNAMIC_LINKER (GLIBC_DYNAMIC_LINKER, UCLIBC_DYNAMIC_LINKER)
906
907 #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
908 %{rdynamic:-export-dynamic} \
909 %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}}}"
910
911 #if defined(HAVE_LD_EH_FRAME_HDR)
912 # define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
913 #endif
914
915 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
916 %{!undef: \
917 %{!ansi: \
918 %{!std=*:-Dunix -D__unix -Dlinux -D__linux} \
919 %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \
920 -Asystem=linux -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
921
922 /* GNU/Hurd support. */
923 #define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \
924 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
925 %{profile:-lc_p} %{!profile:-lc}}}"
926
927 #define STARTFILE_GNU_SPEC "\
928 %{!shared: %{!static: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}} \
929 %{static: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
930 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
931 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
932
933 #define ENDFILE_GNU_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
934 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
935
936 #define LINK_START_GNU_SPEC ""
937
938 #define LINK_OS_GNU_SPEC "-m elf32ppclinux %{!shared: %{!static: \
939 %{rdynamic:-export-dynamic} \
940 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
941
942 #define CPP_OS_GNU_SPEC "-D__unix__ -D__gnu_hurd__ -D__GNU__ \
943 %{!undef: \
944 %{!ansi: -Dunix -D__unix}} \
945 -Asystem=gnu -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
946
947 /* NetBSD support. */
948 #define LIB_NETBSD_SPEC "\
949 %{profile:-lgmon -lc_p} %{!profile:-lc}"
950
951 #define STARTFILE_NETBSD_SPEC "\
952 ncrti.o%s crt0.o%s \
953 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
954
955 #define ENDFILE_NETBSD_SPEC "\
956 %{!shared:crtend.o%s} %{shared:crtendS.o%s} \
957 ncrtn.o%s"
958
959 #define LINK_START_NETBSD_SPEC "\
960 "
961
962 #define LINK_OS_NETBSD_SPEC "\
963 %{!shared: %{!static: \
964 %{rdynamic:-export-dynamic} \
965 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}}"
966
967 #define CPP_OS_NETBSD_SPEC "\
968 -D__powerpc__ -D__NetBSD__ -D__KPRINTF_ATTRIBUTE__"
969
970 /* OpenBSD support. */
971 #ifndef LIB_OPENBSD_SPEC
972 #define LIB_OPENBSD_SPEC "%{!shared:%{pthread:-lpthread%{p:_p}%{!p:%{pg:_p}}}} %{!shared:-lc%{p:_p}%{!p:%{pg:_p}}}"
973 #endif
974
975 #ifndef STARTFILE_OPENBSD_SPEC
976 #define STARTFILE_OPENBSD_SPEC "\
977 %{!shared: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
978 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
979 #endif
980
981 #ifndef ENDFILE_OPENBSD_SPEC
982 #define ENDFILE_OPENBSD_SPEC "\
983 %{!shared:crtend.o%s} %{shared:crtendS.o%s}"
984 #endif
985
986 #ifndef LINK_START_OPENBSD_SPEC
987 #define LINK_START_OPENBSD_SPEC "-Ttext 0x400074"
988 #endif
989
990 #ifndef LINK_OS_OPENBSD_SPEC
991 #define LINK_OS_OPENBSD_SPEC ""
992 #endif
993
994 #ifndef CPP_OS_OPENBSD_SPEC
995 #define CPP_OS_OPENBSD_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}"
996 #endif
997
998 /* WindISS support. */
999
1000 #define LIB_WINDISS_SPEC "--start-group -li -lcfp -lwindiss -lram -limpl -limpfp --end-group"
1001
1002 #define CPP_OS_WINDISS_SPEC "\
1003 -D__rtasim \
1004 -D__EABI__ \
1005 -D__ppc \
1006 %{!msoft-float: -D__hardfp} \
1007 "
1008
1009 #define STARTFILE_WINDISS_SPEC "crt0.o%s crtbegin.o%s"
1010
1011 #define ENDFILE_WINDISS_SPEC "crtend.o%s"
1012
1013 #define LINK_START_WINDISS_SPEC ""
1014
1015 #define LINK_OS_WINDISS_SPEC ""
1016
1017 /* Define any extra SPECS that the compiler needs to generate. */
1018 /* Override rs6000.h definition. */
1019 #undef SUBTARGET_EXTRA_SPECS
1020 #define SUBTARGET_EXTRA_SPECS \
1021 { "crtsavres_default", CRTSAVRES_DEFAULT_SPEC }, \
1022 { "lib_ads", LIB_ADS_SPEC }, \
1023 { "lib_yellowknife", LIB_YELLOWKNIFE_SPEC }, \
1024 { "lib_mvme", LIB_MVME_SPEC }, \
1025 { "lib_sim", LIB_SIM_SPEC }, \
1026 { "lib_freebsd", LIB_FREEBSD_SPEC }, \
1027 { "lib_gnu", LIB_GNU_SPEC }, \
1028 { "lib_linux", LIB_LINUX_SPEC }, \
1029 { "lib_netbsd", LIB_NETBSD_SPEC }, \
1030 { "lib_openbsd", LIB_OPENBSD_SPEC }, \
1031 { "lib_windiss", LIB_WINDISS_SPEC }, \
1032 { "lib_default", LIB_DEFAULT_SPEC }, \
1033 { "startfile_ads", STARTFILE_ADS_SPEC }, \
1034 { "startfile_yellowknife", STARTFILE_YELLOWKNIFE_SPEC }, \
1035 { "startfile_mvme", STARTFILE_MVME_SPEC }, \
1036 { "startfile_sim", STARTFILE_SIM_SPEC }, \
1037 { "startfile_freebsd", STARTFILE_FREEBSD_SPEC }, \
1038 { "startfile_gnu", STARTFILE_GNU_SPEC }, \
1039 { "startfile_linux", STARTFILE_LINUX_SPEC }, \
1040 { "startfile_netbsd", STARTFILE_NETBSD_SPEC }, \
1041 { "startfile_openbsd", STARTFILE_OPENBSD_SPEC }, \
1042 { "startfile_windiss", STARTFILE_WINDISS_SPEC }, \
1043 { "startfile_default", STARTFILE_DEFAULT_SPEC }, \
1044 { "endfile_ads", ENDFILE_ADS_SPEC }, \
1045 { "endfile_yellowknife", ENDFILE_YELLOWKNIFE_SPEC }, \
1046 { "endfile_mvme", ENDFILE_MVME_SPEC }, \
1047 { "endfile_sim", ENDFILE_SIM_SPEC }, \
1048 { "endfile_freebsd", ENDFILE_FREEBSD_SPEC }, \
1049 { "endfile_gnu", ENDFILE_GNU_SPEC }, \
1050 { "endfile_linux", ENDFILE_LINUX_SPEC }, \
1051 { "endfile_netbsd", ENDFILE_NETBSD_SPEC }, \
1052 { "endfile_openbsd", ENDFILE_OPENBSD_SPEC }, \
1053 { "endfile_windiss", ENDFILE_WINDISS_SPEC }, \
1054 { "endfile_default", ENDFILE_DEFAULT_SPEC }, \
1055 { "link_path", LINK_PATH_SPEC }, \
1056 { "link_shlib", LINK_SHLIB_SPEC }, \
1057 { "link_target", LINK_TARGET_SPEC }, \
1058 { "link_start", LINK_START_SPEC }, \
1059 { "link_start_ads", LINK_START_ADS_SPEC }, \
1060 { "link_start_yellowknife", LINK_START_YELLOWKNIFE_SPEC }, \
1061 { "link_start_mvme", LINK_START_MVME_SPEC }, \
1062 { "link_start_sim", LINK_START_SIM_SPEC }, \
1063 { "link_start_freebsd", LINK_START_FREEBSD_SPEC }, \
1064 { "link_start_gnu", LINK_START_GNU_SPEC }, \
1065 { "link_start_linux", LINK_START_LINUX_SPEC }, \
1066 { "link_start_netbsd", LINK_START_NETBSD_SPEC }, \
1067 { "link_start_openbsd", LINK_START_OPENBSD_SPEC }, \
1068 { "link_start_windiss", LINK_START_WINDISS_SPEC }, \
1069 { "link_start_default", LINK_START_DEFAULT_SPEC }, \
1070 { "link_os", LINK_OS_SPEC }, \
1071 { "link_os_ads", LINK_OS_ADS_SPEC }, \
1072 { "link_os_yellowknife", LINK_OS_YELLOWKNIFE_SPEC }, \
1073 { "link_os_mvme", LINK_OS_MVME_SPEC }, \
1074 { "link_os_sim", LINK_OS_SIM_SPEC }, \
1075 { "link_os_freebsd", LINK_OS_FREEBSD_SPEC }, \
1076 { "link_os_linux", LINK_OS_LINUX_SPEC }, \
1077 { "link_os_gnu", LINK_OS_GNU_SPEC }, \
1078 { "link_os_netbsd", LINK_OS_NETBSD_SPEC }, \
1079 { "link_os_openbsd", LINK_OS_OPENBSD_SPEC }, \
1080 { "link_os_windiss", LINK_OS_WINDISS_SPEC }, \
1081 { "link_os_default", LINK_OS_DEFAULT_SPEC }, \
1082 { "cc1_endian_big", CC1_ENDIAN_BIG_SPEC }, \
1083 { "cc1_endian_little", CC1_ENDIAN_LITTLE_SPEC }, \
1084 { "cc1_endian_default", CC1_ENDIAN_DEFAULT_SPEC }, \
1085 { "cc1_secure_plt_default", CC1_SECURE_PLT_DEFAULT_SPEC }, \
1086 { "cpp_os_ads", CPP_OS_ADS_SPEC }, \
1087 { "cpp_os_yellowknife", CPP_OS_YELLOWKNIFE_SPEC }, \
1088 { "cpp_os_mvme", CPP_OS_MVME_SPEC }, \
1089 { "cpp_os_sim", CPP_OS_SIM_SPEC }, \
1090 { "cpp_os_freebsd", CPP_OS_FREEBSD_SPEC }, \
1091 { "cpp_os_gnu", CPP_OS_GNU_SPEC }, \
1092 { "cpp_os_linux", CPP_OS_LINUX_SPEC }, \
1093 { "cpp_os_netbsd", CPP_OS_NETBSD_SPEC }, \
1094 { "cpp_os_openbsd", CPP_OS_OPENBSD_SPEC }, \
1095 { "cpp_os_windiss", CPP_OS_WINDISS_SPEC }, \
1096 { "cpp_os_default", CPP_OS_DEFAULT_SPEC }, \
1097 { "fbsd_dynamic_linker", FBSD_DYNAMIC_LINKER }, \
1098 SUBSUBTARGET_EXTRA_SPECS
1099
1100 #define SUBSUBTARGET_EXTRA_SPECS
1101
1102 /* Define this macro as a C expression for the initializer of an
1103 array of string to tell the driver program which options are
1104 defaults for this target and thus do not need to be handled
1105 specially when using `MULTILIB_OPTIONS'.
1106
1107 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
1108 the target makefile fragment or if none of the options listed in
1109 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
1110
1111 #define MULTILIB_DEFAULTS { "mbig", "mcall-sysv" }
1112
1113 /* Define this macro if the code for function profiling should come
1114 before the function prologue. Normally, the profiling code comes
1115 after. */
1116 #define PROFILE_BEFORE_PROLOGUE 1
1117
1118 /* Function name to call to do profiling. */
1119 #define RS6000_MCOUNT "_mcount"
1120
1121 /* Define this macro (to a value of 1) if you want to support the
1122 Win32 style pragmas #pragma pack(push,<n>)' and #pragma
1123 pack(pop)'. The pack(push,<n>) pragma specifies the maximum
1124 alignment (in bytes) of fields within a structure, in much the
1125 same way as the __aligned__' and __packed__' __attribute__'s
1126 do. A pack value of zero resets the behavior to the default.
1127 Successive invocations of this pragma cause the previous values to
1128 be stacked, so that invocations of #pragma pack(pop)' will return
1129 to the previous value. */
1130
1131 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
1132
1133 /* Select a format to encode pointers in exception handling data. CODE
1134 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
1135 true if the symbol may be affected by dynamic relocations. */
1136 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
1137 ((flag_pic || TARGET_RELOCATABLE) \
1138 ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \
1139 : DW_EH_PE_absptr)
1140
1141 #define DOUBLE_INT_ASM_OP "\t.quad\t"
1142
1143 /* Generate entries in .fixup for relocatable addresses. */
1144 #define RELOCATABLE_NEEDS_FIXUP 1
1145
1146 /* This target uses the sysv4.opt file. */
1147 #define TARGET_USES_SYSV4_OPT 1
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