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 Free Software Foundation, Inc.
4 Contributed by Cygnus Support.
6 This file is part of GCC.
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.
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.
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, 59 Temple Place - Suite 330, Boston,
21 MA 02111-1307, USA. */
23 /* Header files should be C++ aware in general. */
24 #define NO_IMPLICIT_EXTERN_C
26 /* Yes! We are ELF. */
27 #define TARGET_OBJECT_FORMAT OBJECT_ELF
29 /* Default ABI to compile code for. */
30 #define DEFAULT_ABI rs6000_current_abi
32 /* Default ABI to use. */
33 #define RS6000_ABI_NAME "sysv"
35 /* Override rs6000.h definition. */
36 #undef ASM_DEFAULT_SPEC
37 #define ASM_DEFAULT_SPEC "-mppc"
39 /* Small data support types. */
40 enum rs6000_sdata_type {
41 SDATA_NONE, /* No small data support. */
42 SDATA_DATA, /* Just put data in .sbss/.sdata, don't use relocs. */
43 SDATA_SYSV, /* Use r13 to point to .sdata/.sbss. */
44 SDATA_EABI /* Use r13 like above, r2 points to .sdata2/.sbss2. */
47 extern enum rs6000_sdata_type rs6000_sdata;
49 /* V.4/eabi switches. */
50 #define MASK_NO_BITFIELD_TYPE 0x40000000 /* Set PCC_BITFIELD_TYPE_MATTERS to 0. */
51 #define MASK_STRICT_ALIGN 0x20000000 /* Set STRICT_ALIGNMENT to 1. */
52 #define MASK_RELOCATABLE 0x10000000 /* GOT pointers are PC relative. */
53 #define MASK_EABI 0x08000000 /* Adhere to eabi, not System V spec. */
54 #define MASK_LITTLE_ENDIAN 0x04000000 /* Target is little endian. */
55 #define MASK_REGNAMES 0x02000000 /* Use alternate register names. */
56 #define MASK_PROTOTYPE 0x01000000 /* Only prototyped fcns pass variable args. */
57 #define MASK_NO_BITFIELD_WORD 0x00800000 /* Bitfields cannot cross word boundaries */
59 #define TARGET_NO_BITFIELD_TYPE (target_flags & MASK_NO_BITFIELD_TYPE)
60 #define TARGET_STRICT_ALIGN (target_flags & MASK_STRICT_ALIGN)
61 #define TARGET_RELOCATABLE (target_flags & MASK_RELOCATABLE)
62 #define TARGET_EABI (target_flags & MASK_EABI)
63 #define TARGET_LITTLE_ENDIAN (target_flags & MASK_LITTLE_ENDIAN)
64 #define TARGET_REGNAMES (target_flags & MASK_REGNAMES)
65 #define TARGET_PROTOTYPE (target_flags & MASK_PROTOTYPE)
66 #define TARGET_NO_BITFIELD_WORD (target_flags & MASK_NO_BITFIELD_WORD)
67 #define TARGET_TOC ((target_flags & MASK_64BIT) \
68 || ((target_flags & (MASK_RELOCATABLE \
69 | MASK_MINIMAL_TOC)) \
71 || DEFAULT_ABI == ABI_AIX)
73 #define TARGET_BITFIELD_TYPE (! TARGET_NO_BITFIELD_TYPE)
74 #define TARGET_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
75 #define TARGET_NO_PROTOTYPE (! TARGET_PROTOTYPE)
76 #define TARGET_NO_TOC (! TARGET_TOC)
77 #define TARGET_NO_EABI (! TARGET_EABI)
79 /* Strings provided by SUBTARGET_OPTIONS */
80 extern const char *rs6000_abi_name;
81 extern const char *rs6000_sdata_name;
82 extern const char *rs6000_tls_size_string; /* For -mtls-size= */
84 /* Override rs6000.h definition. */
85 #undef SUBTARGET_OPTIONS
86 #define SUBTARGET_OPTIONS \
87 { "call-", &rs6000_abi_name, N_("Select ABI calling convention"), 0}, \
88 { "sdata=", &rs6000_sdata_name, N_("Select method for sdata handling"), 0}, \
89 { "tls-size=", &rs6000_tls_size_string, \
90 N_("Specify bit size of immediate TLS offsets"), 0 }
92 #define SDATA_DEFAULT_SIZE 8
94 /* Note, V.4 no longer uses a normal TOC, so make -mfull-toc, be just
95 the same as -mminimal-toc. */
96 /* Override rs6000.h definition. */
97 #undef SUBTARGET_SWITCHES
98 #define SUBTARGET_SWITCHES \
99 { "bit-align", -MASK_NO_BITFIELD_TYPE, \
100 N_("Align to the base type of the bit-field") }, \
101 { "no-bit-align", MASK_NO_BITFIELD_TYPE, \
102 N_("Don't align to the base type of the bit-field") }, \
103 { "strict-align", MASK_STRICT_ALIGN, \
104 N_("Don't assume that unaligned accesses are handled by the system") }, \
105 { "no-strict-align", -MASK_STRICT_ALIGN, \
106 N_("Assume that unaligned accesses are handled by the system") }, \
107 { "relocatable", MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
108 N_("Produce code relocatable at runtime") }, \
109 { "no-relocatable", -MASK_RELOCATABLE, \
110 N_("Don't produce code relocatable at runtime") }, \
111 { "relocatable-lib", MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
112 N_("Produce code relocatable at runtime") }, \
113 { "no-relocatable-lib", -MASK_RELOCATABLE, \
114 N_("Don't produce code relocatable at runtime") }, \
115 { "little-endian", MASK_LITTLE_ENDIAN, \
116 N_("Produce little endian code") }, \
117 { "little", MASK_LITTLE_ENDIAN, \
118 N_("Produce little endian code") }, \
119 { "big-endian", -MASK_LITTLE_ENDIAN, \
120 N_("Produce big endian code") }, \
121 { "big", -MASK_LITTLE_ENDIAN, \
122 N_("Produce big endian code") }, \
123 { "no-toc", 0, N_("no description yet") }, \
124 { "toc", MASK_MINIMAL_TOC, N_("no description yet") }, \
125 { "full-toc", MASK_MINIMAL_TOC, N_("no description yet") }, \
126 { "prototype", MASK_PROTOTYPE, N_("no description yet") }, \
127 { "no-prototype", -MASK_PROTOTYPE, N_("no description yet") }, \
128 { "no-traceback", 0, N_("no description yet") }, \
129 { "eabi", MASK_EABI, N_("Use EABI") }, \
130 { "no-eabi", -MASK_EABI, N_("Don't use EABI") }, \
131 { "bit-word", -MASK_NO_BITFIELD_WORD, "" }, \
132 { "no-bit-word", MASK_NO_BITFIELD_WORD, \
133 N_("Do not allow bit-fields to cross word boundaries") }, \
134 { "regnames", MASK_REGNAMES, \
135 N_("Use alternate register names") }, \
136 { "no-regnames", -MASK_REGNAMES, \
137 N_("Don't use alternate register names") }, \
138 { "sdata", 0, N_("no description yet") }, \
139 { "no-sdata", 0, N_("no description yet") }, \
141 N_("Link with libsim.a, libc.a and sim-crt0.o") }, \
143 N_("Link with libads.a, libc.a and crt0.o") }, \
144 { "yellowknife", 0, \
145 N_("Link with libyk.a, libc.a and crt0.o") }, \
147 N_("Link with libmvme.a, libc.a and crt0.o") }, \
149 N_("Set the PPC_EMB bit in the ELF flags header") }, \
150 { "windiss", 0, N_("Use the WindISS simulator") }, \
151 { "shlib", 0, N_("no description yet") }, \
152 { "64", MASK_64BIT | MASK_POWERPC64 | MASK_POWERPC, \
153 N_("Generate 64-bit code") }, \
154 { "32", - (MASK_64BIT | MASK_POWERPC64), \
155 N_("Generate 32-bit code") }, \
156 EXTRA_SUBTARGET_SWITCHES \
157 { "newlib", 0, N_("no description yet") },
159 /* This is meant to be redefined in the host dependent files. */
160 #define EXTRA_SUBTARGET_SWITCHES
162 /* Sometimes certain combinations of command options do not make sense
163 on a particular target machine. You can define a macro
164 `OVERRIDE_OPTIONS' to take account of this. This macro, if
165 defined, is executed once just after all the command options have
168 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
171 #define SUBTARGET_OVERRIDE_OPTIONS \
174 g_switch_value = SDATA_DEFAULT_SIZE; \
176 if (rs6000_abi_name == NULL) \
177 rs6000_abi_name = RS6000_ABI_NAME; \
179 if (!strcmp (rs6000_abi_name, "sysv")) \
180 rs6000_current_abi = ABI_V4; \
181 else if (!strcmp (rs6000_abi_name, "sysv-noeabi")) \
183 rs6000_current_abi = ABI_V4; \
184 target_flags &= ~ MASK_EABI; \
186 else if (!strcmp (rs6000_abi_name, "sysv-eabi") \
187 || !strcmp (rs6000_abi_name, "eabi")) \
189 rs6000_current_abi = ABI_V4; \
190 target_flags |= MASK_EABI; \
192 else if (!strcmp (rs6000_abi_name, "aixdesc")) \
193 rs6000_current_abi = ABI_AIX; \
194 else if (!strcmp (rs6000_abi_name, "freebsd")) \
195 rs6000_current_abi = ABI_V4; \
196 else if (!strcmp (rs6000_abi_name, "linux")) \
197 rs6000_current_abi = ABI_V4; \
198 else if (!strcmp (rs6000_abi_name, "gnu")) \
199 rs6000_current_abi = ABI_V4; \
200 else if (!strcmp (rs6000_abi_name, "netbsd")) \
201 rs6000_current_abi = ABI_V4; \
202 else if (!strcmp (rs6000_abi_name, "i960-old")) \
204 rs6000_current_abi = ABI_V4; \
205 target_flags |= (MASK_LITTLE_ENDIAN | MASK_EABI \
206 | MASK_NO_BITFIELD_WORD); \
207 target_flags &= ~MASK_STRICT_ALIGN; \
211 rs6000_current_abi = ABI_V4; \
212 error ("bad value for -mcall-%s", rs6000_abi_name); \
215 if (rs6000_sdata_name) \
217 if (!strcmp (rs6000_sdata_name, "none")) \
218 rs6000_sdata = SDATA_NONE; \
219 else if (!strcmp (rs6000_sdata_name, "data")) \
220 rs6000_sdata = SDATA_DATA; \
221 else if (!strcmp (rs6000_sdata_name, "default")) \
222 rs6000_sdata = (TARGET_EABI) ? SDATA_EABI : SDATA_SYSV; \
223 else if (!strcmp (rs6000_sdata_name, "sysv")) \
224 rs6000_sdata = SDATA_SYSV; \
225 else if (!strcmp (rs6000_sdata_name, "eabi")) \
226 rs6000_sdata = SDATA_EABI; \
228 error ("bad value for -msdata=%s", rs6000_sdata_name); \
230 else if (DEFAULT_ABI == ABI_V4) \
232 rs6000_sdata = SDATA_DATA; \
233 rs6000_sdata_name = "data"; \
237 rs6000_sdata = SDATA_NONE; \
238 rs6000_sdata_name = "none"; \
241 if (TARGET_RELOCATABLE && \
242 (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV)) \
244 rs6000_sdata = SDATA_DATA; \
245 error ("-mrelocatable and -msdata=%s are incompatible", \
246 rs6000_sdata_name); \
249 else if (flag_pic && DEFAULT_ABI != ABI_AIX \
250 && (rs6000_sdata == SDATA_EABI \
251 || rs6000_sdata == SDATA_SYSV)) \
253 rs6000_sdata = SDATA_DATA; \
254 error ("-f%s and -msdata=%s are incompatible", \
255 (flag_pic > 1) ? "PIC" : "pic", \
256 rs6000_sdata_name); \
259 if ((rs6000_sdata != SDATA_NONE && DEFAULT_ABI != ABI_V4) \
260 || (rs6000_sdata == SDATA_EABI && !TARGET_EABI)) \
262 rs6000_sdata = SDATA_NONE; \
263 error ("-msdata=%s and -mcall-%s are incompatible", \
264 rs6000_sdata_name, rs6000_abi_name); \
267 targetm.have_srodata_section = rs6000_sdata == SDATA_EABI; \
269 if (TARGET_RELOCATABLE && !TARGET_MINIMAL_TOC) \
271 target_flags |= MASK_MINIMAL_TOC; \
272 error ("-mrelocatable and -mno-minimal-toc are incompatible"); \
275 if (TARGET_RELOCATABLE && rs6000_current_abi == ABI_AIX) \
277 target_flags &= ~MASK_RELOCATABLE; \
278 error ("-mrelocatable and -mcall-%s are incompatible", \
282 if (!TARGET_64BIT && flag_pic > 1 && rs6000_current_abi == ABI_AIX) \
285 error ("-fPIC and -mcall-%s are incompatible", \
289 if (rs6000_current_abi == ABI_AIX && TARGET_LITTLE_ENDIAN) \
291 target_flags &= ~MASK_LITTLE_ENDIAN; \
292 error ("-mcall-aixdesc must be big endian"); \
295 /* Treat -fPIC the same as -mrelocatable. */ \
296 if (flag_pic > 1 && DEFAULT_ABI != ABI_AIX) \
297 target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC; \
299 else if (TARGET_RELOCATABLE) \
303 #ifndef RS6000_BI_ARCH
304 # define SUBSUBTARGET_OVERRIDE_OPTIONS \
306 if ((TARGET_DEFAULT ^ target_flags) & MASK_64BIT) \
307 error ("-m%s not supported in this configuration", \
308 (target_flags & MASK_64BIT) ? "64" : "32"); \
312 /* Override rs6000.h definition. */
313 #undef TARGET_DEFAULT
314 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
316 /* Override rs6000.h definition. */
317 #undef PROCESSOR_DEFAULT
318 #define PROCESSOR_DEFAULT PROCESSOR_PPC750
321 /* System V.4 uses register 13 as a pointer to the small data area,
322 so it is not available to the normal user. */
325 /* Size of the V.4 varargs area if needed. */
326 /* Override rs6000.h definition. */
327 #undef RS6000_VARARGS_AREA
328 #define RS6000_VARARGS_AREA ((cfun->machine->sysv_varargs_p) ? RS6000_VARARGS_SIZE : 0)
330 /* Override default big endianism definitions in rs6000.h. */
331 #undef BYTES_BIG_ENDIAN
332 #undef WORDS_BIG_ENDIAN
333 #define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN)
334 #define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN)
336 /* Define this to set the endianness to use in libgcc2.c, which can
337 not depend on target_flags. */
338 #if !defined(__LITTLE_ENDIAN__) && !defined(__sun__)
339 #define LIBGCC2_WORDS_BIG_ENDIAN 1
341 #define LIBGCC2_WORDS_BIG_ENDIAN 0
344 /* Define cutoff for using external functions to save floating point.
345 Currently on V.4, always use inline stores. */
346 #define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64)
348 /* Put jump tables in read-only memory, rather than in .text. */
349 #define JUMP_TABLES_IN_TEXT_SECTION 0
351 /* Prefix and suffix to use to saving floating point. */
352 #define SAVE_FP_PREFIX "_savefpr_"
353 #define SAVE_FP_SUFFIX "_l"
355 /* Prefix and suffix to use to restoring floating point. */
356 #define RESTORE_FP_PREFIX "_restfpr_"
357 #define RESTORE_FP_SUFFIX "_l"
359 /* Type used for ptrdiff_t, as a string used in a declaration. */
360 #define PTRDIFF_TYPE "int"
362 /* Type used for wchar_t, as a string used in a declaration. */
363 /* Override svr4.h definition. */
365 #define WCHAR_TYPE "long int"
367 /* Width of wchar_t in bits. */
368 /* Override svr4.h definition. */
369 #undef WCHAR_TYPE_SIZE
370 #define WCHAR_TYPE_SIZE 32
372 /* Make int foo : 8 not cause structures to be aligned to an int boundary. */
373 /* Override elfos.h definition. */
374 #undef PCC_BITFIELD_TYPE_MATTERS
375 #define PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE)
377 #undef BITFIELD_NBYTES_LIMITED
378 #define BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD)
380 /* Define this macro to be the value 1 if instructions will fail to
381 work if given data not on the nominal alignment. If instructions
382 will merely go slower in that case, define this macro as 0. */
383 #undef STRICT_ALIGNMENT
384 #define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN)
386 /* Alignment in bits of the stack boundary. Note, in order to allow building
387 one set of libraries with -mno-eabi instead of eabi libraries and non-eabi
388 versions, just use 64 as the stack boundary. */
389 #undef STACK_BOUNDARY
390 #define STACK_BOUNDARY (TARGET_ALTIVEC_ABI ? 128 : 64)
392 /* Define this macro if you wish to preserve a certain alignment for
393 the stack pointer, greater than what the hardware enforces. The
394 definition is a C expression for the desired alignment (measured
395 in bits). This macro must evaluate to a value equal to or larger
397 For the SYSV ABI and variants the alignment of the stack pointer
398 is usually controlled manually in rs6000.c. However, to maintain
399 alignment across alloca () in all circumstances,
400 PREFERRED_STACK_BOUNDARY needs to be set as well.
401 This has the additional advantage of allowing a bigger maximum
402 alignment of user objects on the stack. */
404 #undef PREFERRED_STACK_BOUNDARY
405 #define PREFERRED_STACK_BOUNDARY 128
407 /* Real stack boundary as mandated by the appropriate ABI. */
408 #define ABI_STACK_BOUNDARY ((TARGET_EABI && !TARGET_ALTIVEC_ABI) ? 64 : 128)
410 /* An expression for the alignment of a structure field FIELD if the
411 alignment computed in the usual way is COMPUTED. */
412 #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
413 ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \
416 /* Define this macro as an expression for the alignment of a type
417 (given by TYPE as a tree node) if the alignment computed in the
418 usual way is COMPUTED and the alignment explicitly specified was
420 #define ROUND_TYPE_ALIGN(TYPE, COMPUTED, SPECIFIED) \
421 ((TARGET_ALTIVEC && TREE_CODE (TYPE) == VECTOR_TYPE) \
422 ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128) \
423 : MAX (COMPUTED, SPECIFIED))
425 #undef BIGGEST_FIELD_ALIGNMENT
427 /* Use ELF style section commands. */
429 #define TEXT_SECTION_ASM_OP "\t.section\t\".text\""
431 #define DATA_SECTION_ASM_OP "\t.section\t\".data\""
433 #define BSS_SECTION_ASM_OP "\t.section\t\".bss\""
435 /* Override elfos.h definition. */
436 #undef INIT_SECTION_ASM_OP
437 #define INIT_SECTION_ASM_OP "\t.section\t\".init\",\"ax\""
439 /* Override elfos.h definition. */
440 #undef FINI_SECTION_ASM_OP
441 #define FINI_SECTION_ASM_OP "\t.section\t\".fini\",\"ax\""
443 #define TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\""
445 /* Put PC relative got entries in .got2. */
446 #define MINIMAL_TOC_SECTION_ASM_OP \
447 (TARGET_RELOCATABLE || (flag_pic && DEFAULT_ABI != ABI_AIX) \
448 ? "\t.section\t\".got2\",\"aw\"" : "\t.section\t\".got1\",\"aw\"")
450 #define SDATA_SECTION_ASM_OP "\t.section\t\".sdata\",\"aw\""
451 #define SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\""
452 #define SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits"
454 /* Besides the usual ELF sections, we need a toc section. */
455 /* Override elfos.h definition. */
456 #undef EXTRA_SECTIONS
457 #define EXTRA_SECTIONS in_toc, in_sdata, in_sdata2, in_sbss, in_init, in_fini
459 /* Override elfos.h definition. */
460 #undef EXTRA_SECTION_FUNCTIONS
461 #define EXTRA_SECTION_FUNCTIONS \
462 TOC_SECTION_FUNCTION \
463 SDATA_SECTION_FUNCTION \
464 SDATA2_SECTION_FUNCTION \
465 SBSS_SECTION_FUNCTION \
466 INIT_SECTION_FUNCTION \
467 FINI_SECTION_FUNCTION
469 #define TOC_SECTION_FUNCTION \
473 if (in_section != in_toc) \
475 in_section = in_toc; \
476 if (DEFAULT_ABI == ABI_AIX \
477 && TARGET_MINIMAL_TOC \
478 && !TARGET_RELOCATABLE) \
480 if (! toc_initialized) \
482 toc_initialized = 1; \
483 fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \
484 (*targetm.asm_out.internal_label) (asm_out_file, "LCTOC", 0); \
485 fprintf (asm_out_file, "\t.tc "); \
486 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1[TC],"); \
487 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
488 fprintf (asm_out_file, "\n"); \
490 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
491 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
492 fprintf (asm_out_file, " = .+32768\n"); \
495 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
497 else if (DEFAULT_ABI == ABI_AIX && !TARGET_RELOCATABLE) \
498 fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \
501 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
502 if (! toc_initialized) \
504 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
505 fprintf (asm_out_file, " = .+32768\n"); \
506 toc_initialized = 1; \
512 extern int in_toc_section (void); \
513 int in_toc_section (void) \
515 return in_section == in_toc; \
518 #define SDATA_SECTION_FUNCTION \
520 sdata_section (void) \
522 if (in_section != in_sdata) \
524 in_section = in_sdata; \
525 fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \
529 #define SDATA2_SECTION_FUNCTION \
531 sdata2_section (void) \
533 if (in_section != in_sdata2) \
535 in_section = in_sdata2; \
536 fprintf (asm_out_file, "%s\n", SDATA2_SECTION_ASM_OP); \
540 #define SBSS_SECTION_FUNCTION \
542 sbss_section (void) \
544 if (in_section != in_sbss) \
546 in_section = in_sbss; \
547 fprintf (asm_out_file, "%s\n", SBSS_SECTION_ASM_OP); \
551 #define INIT_SECTION_FUNCTION \
553 init_section (void) \
555 if (in_section != in_init) \
557 in_section = in_init; \
558 fprintf (asm_out_file, "%s\n", INIT_SECTION_ASM_OP); \
562 #define FINI_SECTION_FUNCTION \
564 fini_section (void) \
566 if (in_section != in_fini) \
568 in_section = in_fini; \
569 fprintf (asm_out_file, "%s\n", FINI_SECTION_ASM_OP); \
573 /* Override default elf definitions. */
574 #undef TARGET_ASM_SELECT_RTX_SECTION
575 #define TARGET_ASM_SELECT_RTX_SECTION rs6000_elf_select_rtx_section
576 #undef TARGET_ASM_SELECT_SECTION
577 #define TARGET_ASM_SELECT_SECTION rs6000_elf_select_section
578 #define TARGET_ASM_UNIQUE_SECTION rs6000_elf_unique_section
580 /* Return nonzero if this entry is to be written into the constant pool
581 in a special way. We do so if this is a SYMBOL_REF, LABEL_REF or a CONST
582 containing one of them. If -mfp-in-toc (the default), we also do
583 this for floating-point constants. We actually can only do this
584 if the FP formats of the target and host machines are the same, but
585 we can't check that since not every file that uses
586 GO_IF_LEGITIMATE_ADDRESS_P includes real.h.
588 Unlike AIX, we don't key off of -mminimal-toc, but instead do not
589 allow floating point constants in the TOC if -mrelocatable. */
591 #undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
592 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \
594 && (GET_CODE (X) == SYMBOL_REF \
595 || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \
596 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \
597 || GET_CODE (X) == LABEL_REF \
598 || (GET_CODE (X) == CONST_INT \
599 && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \
600 || (!TARGET_NO_FP_IN_TOC \
601 && !TARGET_RELOCATABLE \
602 && GET_CODE (X) == CONST_DOUBLE \
603 && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
604 && BITS_PER_WORD == HOST_BITS_PER_INT)))
606 /* These macros generate the special .type and .size directives which
607 are used to set the corresponding fields of the linker symbol table
608 entries in an ELF object file under SVR4. These macros also output
609 the starting labels for the relevant functions/objects. */
611 /* Write the extra assembler code needed to declare a function properly.
612 Some svr4 assemblers need to also have something extra said about the
613 function's return value. We allow for that here. */
615 extern int rs6000_pic_labelno;
617 /* Override elfos.h definition. */
618 #undef ASM_DECLARE_FUNCTION_NAME
619 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
620 rs6000_elf_declare_function_name ((FILE), (NAME), (DECL))
622 /* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore
623 flag. The LOCAL_LABEL_PREFIX variable is used by dbxelf.h. */
625 #define LOCAL_LABEL_PREFIX "."
626 #define USER_LABEL_PREFIX ""
628 /* svr4.h overrides (*targetm.asm_out.internal_label). */
630 #define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \
631 asm_fprintf (FILE, "%L%s", PREFIX)
633 /* Globalizing directive for a label. */
634 #define GLOBAL_ASM_OP "\t.globl "
636 /* This says how to output assembler code to declare an
637 uninitialized internal linkage data object. Under SVR4,
638 the linker seems to want the alignment of data objects
639 to depend on their types. We do exactly that here. */
641 #define LOCAL_ASM_OP "\t.local\t"
643 #define LCOMM_ASM_OP "\t.lcomm\t"
645 /* Override elfos.h definition. */
646 #undef ASM_OUTPUT_ALIGNED_LOCAL
647 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
649 if (rs6000_sdata != SDATA_NONE && (SIZE) > 0 \
650 && (SIZE) <= g_switch_value) \
653 ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \
654 ASM_OUTPUT_LABEL (FILE, NAME); \
655 ASM_OUTPUT_SKIP (FILE, SIZE); \
656 if (!flag_inhibit_size_directive && (SIZE) > 0) \
657 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \
661 fprintf (FILE, "%s", LCOMM_ASM_OP); \
662 assemble_name ((FILE), (NAME)); \
663 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \
664 (SIZE), (ALIGN) / BITS_PER_UNIT); \
666 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
669 /* Describe how to emit uninitialized external linkage items. */
670 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
672 ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN); \
675 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
676 /* To support -falign-* switches we need to use .p2align so
677 that alignment directives in code sections will be padded
678 with no-op instructions, rather than zeroes. */
679 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
682 if ((MAX_SKIP) == 0) \
683 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
685 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
689 /* This is how to output code to push a register on the stack.
690 It need not be very fast code.
692 On the rs6000, we must keep the backchain up to date. In order
693 to simplify things, always allocate 16 bytes for a push (System V
694 wants to keep stack aligned to a 16 byte boundary). */
696 #define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \
698 if (DEFAULT_ABI == ABI_V4) \
700 "\t{stu|stwu} %s,-16(%s)\n\t{st|stw} %s,12(%s)\n", \
701 reg_names[1], reg_names[1], reg_names[REGNO], \
705 /* This is how to output an insn to pop a register from the stack.
706 It need not be very fast code. */
708 #define ASM_OUTPUT_REG_POP(FILE, REGNO) \
710 if (DEFAULT_ABI == ABI_V4) \
712 "\t{l|lwz} %s,12(%s)\n\t{ai|addic} %s,%s,16\n", \
713 reg_names[REGNO], reg_names[1], reg_names[1], \
717 /* Switch Recognition by gcc.c. Add -G xx support. */
719 /* Override svr4.h definition. */
720 #undef SWITCH_TAKES_ARG
721 #define SWITCH_TAKES_ARG(CHAR) \
722 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
723 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
724 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
725 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
726 || (CHAR) == 'B' || (CHAR) == 'b' || (CHAR) == 'G')
728 extern int fixuplabelno;
730 /* Handle constructors specially for -mrelocatable. */
731 #define TARGET_ASM_CONSTRUCTOR rs6000_elf_asm_out_constructor
732 #define TARGET_ASM_DESTRUCTOR rs6000_elf_asm_out_destructor
734 /* This is the end of what might become sysv4.h. */
736 /* Use DWARF 2 debugging information by default. */
737 #undef PREFERRED_DEBUGGING_TYPE
738 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
740 /* Historically we have also supported stabs debugging. */
741 #define DBX_DEBUGGING_INFO 1
743 #define TARGET_ENCODE_SECTION_INFO rs6000_elf_encode_section_info
744 #define TARGET_IN_SMALL_DATA_P rs6000_elf_in_small_data_p
745 #define TARGET_SECTION_TYPE_FLAGS rs6000_elf_section_type_flags
747 /* The ELF version doesn't encode [DS] or whatever at the end of symbols. */
749 #define RS6000_OUTPUT_BASENAME(FILE, NAME) \
750 assemble_name (FILE, NAME)
752 /* We have to output the stabs for the function name *first*, before
753 outputting its label. */
755 #define DBX_FUNCTION_FIRST
757 /* This is the end of what might become sysv4dbx.h. */
759 #ifndef TARGET_VERSION
760 #define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)");
763 #define TARGET_OS_SYSV_CPP_BUILTINS() \
768 builtin_define ("__pic__=1"); \
769 builtin_define ("__PIC__=1"); \
771 else if (flag_pic == 2) \
773 builtin_define ("__pic__=2"); \
774 builtin_define ("__PIC__=2"); \
776 if (target_flags_explicit \
777 & MASK_RELOCATABLE) \
778 builtin_define ("_RELOCATABLE"); \
782 #ifndef TARGET_OS_CPP_BUILTINS
783 #define TARGET_OS_CPP_BUILTINS() \
786 builtin_define_std ("PPC"); \
787 builtin_define_std ("unix"); \
788 builtin_define ("__svr4__"); \
789 builtin_assert ("system=unix"); \
790 builtin_assert ("system=svr4"); \
791 builtin_assert ("cpu=powerpc"); \
792 builtin_assert ("machine=powerpc"); \
793 TARGET_OS_SYSV_CPP_BUILTINS (); \
798 /* Pass various options to the assembler. */
799 /* Override svr4.h definition. */
801 #define ASM_SPEC "%(asm_cpu) \
802 %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
803 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
804 %{mrelocatable} %{mrelocatable-lib} %{fpic|fpie|fPIC|fPIE:-K PIC} \
805 %{memb|msdata|msdata=eabi: -memb} \
806 %{mlittle|mlittle-endian:-mlittle; \
807 mbig|mbig-endian :-mbig; \
813 mcall-i960-old :-mlittle}"
815 #define CC1_ENDIAN_BIG_SPEC ""
817 #define CC1_ENDIAN_LITTLE_SPEC "\
818 %{!mstrict-align: %{!mno-strict-align: \
824 #define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)"
826 /* Pass -G xxx to the compiler and set correct endian mode. */
827 #define CC1_SPEC "%{G*} \
828 %{mlittle|mlittle-endian: %(cc1_endian_little); \
829 mbig |mbig-endian : %(cc1_endian_big); \
834 mcall-gnu : -mbig %(cc1_endian_big); \
835 mcall-i960-old : -mlittle %(cc1_endian_little); \
836 : %(cc1_endian_default)} \
837 %{mno-sdata: -msdata=none } \
838 %{meabi: %{!mcall-*: -mcall-sysv }} \
839 %{!meabi: %{!mno-eabi: \
840 %{mrelocatable: -meabi } \
841 %{mcall-freebsd: -mno-eabi } \
842 %{mcall-i960-old: -meabi } \
843 %{mcall-linux: -mno-eabi } \
844 %{mcall-gnu: -mno-eabi } \
845 %{mcall-netbsd: -mno-eabi }}} \
846 %{msdata: -msdata=default} \
847 %{mno-sdata: -msdata=none} \
850 /* Don't put -Y P,<path> for cross compilers. */
851 #ifndef CROSS_COMPILE
852 #define LINK_PATH_SPEC "\
854 %{!nostdlib: %{!YP,*: \
856 %{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
857 %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
858 %{!R*: %{!L*: -R /usr/ucblib}} \
860 %{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
861 %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}}"
864 #define LINK_PATH_SPEC ""
867 /* Default starting address if specified. */
868 #define LINK_START_SPEC "\
869 %{mads : %(link_start_ads) ; \
870 myellowknife : %(link_start_yellowknife) ; \
871 mmvme : %(link_start_mvme) ; \
872 msim : %(link_start_sim) ; \
873 mwindiss : %(link_start_windiss) ; \
874 mcall-freebsd: %(link_start_freebsd) ; \
875 mcall-linux : %(link_start_linux) ; \
876 mcall-gnu : %(link_start_gnu) ; \
877 mcall-netbsd : %(link_start_netbsd) ; \
878 : %(link_start_default) }"
880 #define LINK_START_DEFAULT_SPEC ""
882 /* Override svr4.h definition. */
885 %{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \
889 %{!Wl,-T*: %{!T*: %(link_start) }} \
893 /* For now, turn off shared libraries by default. */
894 #ifndef SHARED_LIB_SUPPORT
895 #define NO_SHARED_LIB_SUPPORT
898 #ifndef NO_SHARED_LIB_SUPPORT
899 /* Shared libraries are default. */
900 #define LINK_SHLIB_SPEC "\
901 %{!static: %(link_path) %{!R*:%{L*:-R %*}}} \
903 %{static:-dn -Bstatic} \
904 %{shared:-G -dy -z text} \
905 %{symbolic:-Bsymbolic -G -dy -z text}"
908 /* Shared libraries are not default. */
909 #define LINK_SHLIB_SPEC "\
910 %{mshlib: %(link_path) } \
911 %{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \
913 %{shared:-G -dy -z text %(link_path) } \
914 %{symbolic:-Bsymbolic -G -dy -z text %(link_path) }"
917 /* Override the default target of the linker. */
918 #define LINK_TARGET_SPEC "\
919 %{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \
920 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
921 %{mcall-i960-old: --oformat elf32-powerpcle} \
924 /* Any specific OS flags. */
925 #define LINK_OS_SPEC "\
926 %{mads : %(link_os_ads) ; \
927 myellowknife : %(link_os_yellowknife) ; \
928 mmvme : %(link_os_mvme) ; \
929 msim : %(link_os_sim) ; \
930 mwindiss : %(link_os_windiss) ; \
931 mcall-freebsd: %(link_os_freebsd) ; \
932 mcall-linux : %(link_os_linux) ; \
933 mcall-gnu : %(link_os_gnu) ; \
934 mcall-netbsd : %(link_os_netbsd) ; \
935 : %(link_os_default) }"
937 #define LINK_OS_DEFAULT_SPEC ""
939 /* Override rs6000.h definition. */
941 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
942 %{mads : %(cpp_os_ads) ; \
943 myellowknife : %(cpp_os_yellowknife) ; \
944 mmvme : %(cpp_os_mvme) ; \
945 msim : %(cpp_os_sim) ; \
946 mwindiss : %(cpp_os_windiss) ; \
947 mcall-freebsd: %(cpp_os_freebsd) ; \
948 mcall-linux : %(cpp_os_linux) ; \
949 mcall-gnu : %(cpp_os_gnu) ; \
950 mcall-netbsd : %(cpp_os_netbsd) ; \
951 : %(cpp_os_default) }"
953 #define CPP_OS_DEFAULT_SPEC ""
955 /* Override svr4.h definition. */
956 #undef STARTFILE_SPEC
957 #define STARTFILE_SPEC "\
958 %{mads : %(startfile_ads) ; \
959 myellowknife : %(startfile_yellowknife) ; \
960 mmvme : %(startfile_mvme) ; \
961 msim : %(startfile_sim) ; \
962 mwindiss : %(startfile_windiss) ; \
963 mcall-freebsd: %(startfile_freebsd) ; \
964 mcall-linux : %(startfile_linux) ; \
965 mcall-gnu : %(startfile_gnu) ; \
966 mcall-netbsd : %(startfile_netbsd) ; \
967 : %(startfile_default) }"
969 #define STARTFILE_DEFAULT_SPEC ""
971 /* Override svr4.h definition. */
974 %{mads : %(lib_ads) ; \
975 myellowknife : %(lib_yellowknife) ; \
976 mmvme : %(lib_mvme) ; \
977 msim : %(lib_sim) ; \
978 mwindiss : %(lib_windiss) ; \
979 mcall-freebsd: %(lib_freebsd) ; \
980 mcall-linux : %(lib_linux) ; \
981 mcall-gnu : %(lib_gnu) ; \
982 mcall-netbsd : %(lib_netbsd) ; \
985 #define LIB_DEFAULT_SPEC ""
987 /* Override svr4.h definition. */
989 #define ENDFILE_SPEC "\
990 %{mads : crtsavres.o%s %(endfile_ads) ; \
991 myellowknife : crtsavres.o%s %(endfile_yellowknife) ; \
992 mmvme : crtsavres.o%s %(endfile_mvme) ; \
993 msim : crtsavres.o%s %(endfile_sim) ; \
994 mwindiss : %(endfile_windiss) ; \
995 mcall-freebsd: crtsavres.o%s %(endfile_freebsd) ; \
996 mcall-linux : crtsavres.o%s %(endfile_linux) ; \
997 mcall-gnu : crtsavres.o%s %(endfile_gnu) ; \
998 mcall-netbsd : crtsavres.o%s %(endfile_netbsd) ; \
999 : %(crtsavres_default) %(endfile_default) }"
1001 #define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s"
1003 #define ENDFILE_DEFAULT_SPEC ""
1005 /* Motorola ADS support. */
1006 #define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
1008 #define STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1010 #define ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s"
1012 #define LINK_START_ADS_SPEC "-T ads.ld%s"
1014 #define LINK_OS_ADS_SPEC ""
1016 #define CPP_OS_ADS_SPEC ""
1018 /* Motorola Yellowknife support. */
1019 #define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group"
1021 #define STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1023 #define ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s"
1025 #define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s"
1027 #define LINK_OS_YELLOWKNIFE_SPEC ""
1029 #define CPP_OS_YELLOWKNIFE_SPEC ""
1031 /* Motorola MVME support. */
1032 #define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group"
1034 #define STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1036 #define ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s"
1038 #define LINK_START_MVME_SPEC "-Ttext 0x40000"
1040 #define LINK_OS_MVME_SPEC ""
1042 #define CPP_OS_MVME_SPEC ""
1044 /* PowerPC simulator based on netbsd system calls support. */
1045 #define LIB_SIM_SPEC "--start-group -lsim -lc --end-group"
1047 #define STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s"
1049 #define ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s"
1051 #define LINK_START_SIM_SPEC ""
1053 #define LINK_OS_SIM_SPEC "-m elf32ppcsim"
1055 #define CPP_OS_SIM_SPEC ""
1057 /* FreeBSD support. */
1059 #define CPP_OS_FREEBSD_SPEC "\
1060 -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \
1061 -Acpu=powerpc -Amachine=powerpc"
1063 #define STARTFILE_FREEBSD_SPEC FBSD_STARTFILE_SPEC
1064 #define ENDFILE_FREEBSD_SPEC FBSD_ENDFILE_SPEC
1065 #define LIB_FREEBSD_SPEC FBSD_LIB_SPEC
1066 #define LINK_START_FREEBSD_SPEC ""
1068 #define LINK_OS_FREEBSD_SPEC "\
1069 %{p:%e`-p' not supported; use `-pg' and gprof(1)} \
1072 %{assert*} %{R*} %{rpath*} %{defsym*} \
1073 %{shared:-Bshareable %{h*} %{soname*}} \
1076 %{rdynamic: -export-dynamic} \
1077 %{!dynamic-linker: -dynamic-linker /usr/libexec/ld-elf.so.1}} \
1078 %{static:-Bstatic}} \
1079 %{symbolic:-Bsymbolic}"
1081 /* GNU/Linux support. */
1082 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1083 %{!mnewlib: %{pthread:-lpthread} %{shared:-lc} \
1084 %{!shared: %{profile:-lc_p} %{!profile:-lc}}}"
1087 #define STARTFILE_LINUX_SPEC "\
1088 %{!shared: %{pg|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
1089 %{mnewlib:ecrti.o%s;:crti.o%s} \
1090 %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
1092 #define STARTFILE_LINUX_SPEC "\
1093 %{!shared: %{pg|p:gcrt1.o%s;:crt1.o%s}} \
1094 %{mnewlib:ecrti.o%s;:crti.o%s} \
1095 %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
1098 #define ENDFILE_LINUX_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1099 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1101 #define LINK_START_LINUX_SPEC ""
1103 #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1104 %{rdynamic:-export-dynamic} \
1105 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1107 #if defined(HAVE_LD_EH_FRAME_HDR)
1108 # define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
1111 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1114 %{!std=*:-Dunix -D__unix -Dlinux -D__linux} \
1115 %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \
1116 -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1118 /* GNU/Hurd support. */
1119 #define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \
1120 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1121 %{profile:-lc_p} %{!profile:-lc}}}"
1123 #define STARTFILE_GNU_SPEC "\
1124 %{!shared: %{!static: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}} \
1125 %{static: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
1126 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1127 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1129 #define ENDFILE_GNU_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1130 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1132 #define LINK_START_GNU_SPEC ""
1134 #define LINK_OS_GNU_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1135 %{rdynamic:-export-dynamic} \
1136 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1138 #define CPP_OS_GNU_SPEC "-D__unix__ -D__gnu_hurd__ -D__GNU__ \
1140 %{!ansi: -Dunix -D__unix}} \
1141 -Asystem=gnu -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1143 /* NetBSD support. */
1144 #define LIB_NETBSD_SPEC "\
1145 %{profile:-lgmon -lc_p} %{!profile:-lc}"
1147 #define STARTFILE_NETBSD_SPEC "\
1148 ncrti.o%s crt0.o%s \
1149 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1151 #define ENDFILE_NETBSD_SPEC "\
1152 %{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1155 #define LINK_START_NETBSD_SPEC "\
1158 #define LINK_OS_NETBSD_SPEC "\
1159 %{!shared: %{!static: \
1160 %{rdynamic:-export-dynamic} \
1161 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}}"
1163 #define CPP_OS_NETBSD_SPEC "\
1164 -D__powerpc__ -D__NetBSD__ -D__KPRINTF_ATTRIBUTE__"
1166 /* WindISS support. */
1168 #define LIB_WINDISS_SPEC "--start-group -li -lcfp -lwindiss -lram -limpl -limpfp --end-group"
1170 #define CPP_OS_WINDISS_SPEC "\
1174 %{!msoft-float: -D__hardfp} \
1177 #define STARTFILE_WINDISS_SPEC "crt0.o%s crtbegin.o%s"
1179 #define ENDFILE_WINDISS_SPEC "crtend.o%s"
1181 #define LINK_START_WINDISS_SPEC ""
1183 #define LINK_OS_WINDISS_SPEC ""
1185 /* Define any extra SPECS that the compiler needs to generate. */
1186 /* Override rs6000.h definition. */
1187 #undef SUBTARGET_EXTRA_SPECS
1188 #define SUBTARGET_EXTRA_SPECS \
1189 { "crtsavres_default", CRTSAVRES_DEFAULT_SPEC }, \
1190 { "lib_ads", LIB_ADS_SPEC }, \
1191 { "lib_yellowknife", LIB_YELLOWKNIFE_SPEC }, \
1192 { "lib_mvme", LIB_MVME_SPEC }, \
1193 { "lib_sim", LIB_SIM_SPEC }, \
1194 { "lib_freebsd", LIB_FREEBSD_SPEC }, \
1195 { "lib_gnu", LIB_GNU_SPEC }, \
1196 { "lib_linux", LIB_LINUX_SPEC }, \
1197 { "lib_netbsd", LIB_NETBSD_SPEC }, \
1198 { "lib_windiss", LIB_WINDISS_SPEC }, \
1199 { "lib_default", LIB_DEFAULT_SPEC }, \
1200 { "startfile_ads", STARTFILE_ADS_SPEC }, \
1201 { "startfile_yellowknife", STARTFILE_YELLOWKNIFE_SPEC }, \
1202 { "startfile_mvme", STARTFILE_MVME_SPEC }, \
1203 { "startfile_sim", STARTFILE_SIM_SPEC }, \
1204 { "startfile_freebsd", STARTFILE_FREEBSD_SPEC }, \
1205 { "startfile_gnu", STARTFILE_GNU_SPEC }, \
1206 { "startfile_linux", STARTFILE_LINUX_SPEC }, \
1207 { "startfile_netbsd", STARTFILE_NETBSD_SPEC }, \
1208 { "startfile_windiss", STARTFILE_WINDISS_SPEC }, \
1209 { "startfile_default", STARTFILE_DEFAULT_SPEC }, \
1210 { "endfile_ads", ENDFILE_ADS_SPEC }, \
1211 { "endfile_yellowknife", ENDFILE_YELLOWKNIFE_SPEC }, \
1212 { "endfile_mvme", ENDFILE_MVME_SPEC }, \
1213 { "endfile_sim", ENDFILE_SIM_SPEC }, \
1214 { "endfile_freebsd", ENDFILE_FREEBSD_SPEC }, \
1215 { "endfile_gnu", ENDFILE_GNU_SPEC }, \
1216 { "endfile_linux", ENDFILE_LINUX_SPEC }, \
1217 { "endfile_netbsd", ENDFILE_NETBSD_SPEC }, \
1218 { "endfile_windiss", ENDFILE_WINDISS_SPEC }, \
1219 { "endfile_default", ENDFILE_DEFAULT_SPEC }, \
1220 { "link_path", LINK_PATH_SPEC }, \
1221 { "link_shlib", LINK_SHLIB_SPEC }, \
1222 { "link_target", LINK_TARGET_SPEC }, \
1223 { "link_start", LINK_START_SPEC }, \
1224 { "link_start_ads", LINK_START_ADS_SPEC }, \
1225 { "link_start_yellowknife", LINK_START_YELLOWKNIFE_SPEC }, \
1226 { "link_start_mvme", LINK_START_MVME_SPEC }, \
1227 { "link_start_sim", LINK_START_SIM_SPEC }, \
1228 { "link_start_freebsd", LINK_START_FREEBSD_SPEC }, \
1229 { "link_start_gnu", LINK_START_GNU_SPEC }, \
1230 { "link_start_linux", LINK_START_LINUX_SPEC }, \
1231 { "link_start_netbsd", LINK_START_NETBSD_SPEC }, \
1232 { "link_start_windiss", LINK_START_WINDISS_SPEC }, \
1233 { "link_start_default", LINK_START_DEFAULT_SPEC }, \
1234 { "link_os", LINK_OS_SPEC }, \
1235 { "link_os_ads", LINK_OS_ADS_SPEC }, \
1236 { "link_os_yellowknife", LINK_OS_YELLOWKNIFE_SPEC }, \
1237 { "link_os_mvme", LINK_OS_MVME_SPEC }, \
1238 { "link_os_sim", LINK_OS_SIM_SPEC }, \
1239 { "link_os_freebsd", LINK_OS_FREEBSD_SPEC }, \
1240 { "link_os_linux", LINK_OS_LINUX_SPEC }, \
1241 { "link_os_gnu", LINK_OS_GNU_SPEC }, \
1242 { "link_os_netbsd", LINK_OS_NETBSD_SPEC }, \
1243 { "link_os_windiss", LINK_OS_WINDISS_SPEC }, \
1244 { "link_os_default", LINK_OS_DEFAULT_SPEC }, \
1245 { "cc1_endian_big", CC1_ENDIAN_BIG_SPEC }, \
1246 { "cc1_endian_little", CC1_ENDIAN_LITTLE_SPEC }, \
1247 { "cc1_endian_default", CC1_ENDIAN_DEFAULT_SPEC }, \
1248 { "cpp_os_ads", CPP_OS_ADS_SPEC }, \
1249 { "cpp_os_yellowknife", CPP_OS_YELLOWKNIFE_SPEC }, \
1250 { "cpp_os_mvme", CPP_OS_MVME_SPEC }, \
1251 { "cpp_os_sim", CPP_OS_SIM_SPEC }, \
1252 { "cpp_os_freebsd", CPP_OS_FREEBSD_SPEC }, \
1253 { "cpp_os_gnu", CPP_OS_GNU_SPEC }, \
1254 { "cpp_os_linux", CPP_OS_LINUX_SPEC }, \
1255 { "cpp_os_netbsd", CPP_OS_NETBSD_SPEC }, \
1256 { "cpp_os_windiss", CPP_OS_WINDISS_SPEC }, \
1257 { "cpp_os_default", CPP_OS_DEFAULT_SPEC }, \
1258 SUBSUBTARGET_EXTRA_SPECS
1260 #define SUBSUBTARGET_EXTRA_SPECS
1262 /* Define this macro as a C expression for the initializer of an
1263 array of string to tell the driver program which options are
1264 defaults for this target and thus do not need to be handled
1265 specially when using `MULTILIB_OPTIONS'.
1267 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
1268 the target makefile fragment or if none of the options listed in
1269 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
1271 #define MULTILIB_DEFAULTS { "mbig", "mcall-sysv" }
1273 /* Define this macro if the code for function profiling should come
1274 before the function prologue. Normally, the profiling code comes
1276 #define PROFILE_BEFORE_PROLOGUE 1
1278 /* Function name to call to do profiling. */
1279 #define RS6000_MCOUNT "_mcount"
1281 /* Define this macro (to a value of 1) if you want to support the
1282 Win32 style pragmas #pragma pack(push,<n>)' and #pragma
1283 pack(pop)'. The pack(push,<n>) pragma specifies the maximum
1284 alignment (in bytes) of fields within a structure, in much the
1285 same way as the __aligned__' and __packed__' __attribute__'s
1286 do. A pack value of zero resets the behavior to the default.
1287 Successive invocations of this pragma cause the previous values to
1288 be stacked, so that invocations of #pragma pack(pop)' will return
1289 to the previous value. */
1291 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
1293 /* Select a format to encode pointers in exception handling data. CODE
1294 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
1295 true if the symbol may be affected by dynamic relocations. */
1296 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
1297 ((flag_pic || TARGET_RELOCATABLE) \
1298 ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \
1301 #define TARGET_ASM_EXCEPTION_SECTION readonly_data_section
1303 #define DOUBLE_INT_ASM_OP "\t.quad\t"
1305 /* Generate entries in .fixup for relocatable addresses. */
1306 #define RELOCATABLE_NEEDS_FIXUP