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 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 #undef NO_IMPLICIT_EXTERN_C
25 #define NO_IMPLICIT_EXTERN_C
27 /* Yes! We are ELF. */
28 #define TARGET_OBJECT_FORMAT OBJECT_ELF
30 /* Default ABI to compile code for. */
31 #define DEFAULT_ABI rs6000_current_abi
33 /* Default ABI to use. */
34 #define RS6000_ABI_NAME "sysv"
36 /* Override rs6000.h definition. */
37 #undef ASM_DEFAULT_SPEC
38 #define ASM_DEFAULT_SPEC "-mppc"
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. */
48 extern enum rs6000_sdata_type rs6000_sdata;
50 /* V.4/eabi switches. */
51 #define MASK_NO_BITFIELD_TYPE 0x40000000 /* Set PCC_BITFIELD_TYPE_MATTERS to 0. */
52 #define MASK_STRICT_ALIGN 0x20000000 /* Set STRICT_ALIGNMENT to 1. */
53 #define MASK_RELOCATABLE 0x10000000 /* GOT pointers are PC relative. */
54 #define MASK_EABI 0x08000000 /* Adhere to eabi, not System V spec. */
55 #define MASK_LITTLE_ENDIAN 0x04000000 /* Target is little endian. */
56 #define MASK_REGNAMES 0x02000000 /* Use alternate register names. */
57 #define MASK_PROTOTYPE 0x01000000 /* Only prototyped fcns pass variable args. */
58 #define MASK_NO_BITFIELD_WORD 0x00800000 /* Bitfields cannot cross word boundaries */
60 #define TARGET_NO_BITFIELD_TYPE (target_flags & MASK_NO_BITFIELD_TYPE)
61 #define TARGET_STRICT_ALIGN (target_flags & MASK_STRICT_ALIGN)
62 #define TARGET_RELOCATABLE (target_flags & MASK_RELOCATABLE)
63 #define TARGET_EABI (target_flags & MASK_EABI)
64 #define TARGET_LITTLE_ENDIAN (target_flags & MASK_LITTLE_ENDIAN)
65 #define TARGET_REGNAMES (target_flags & MASK_REGNAMES)
66 #define TARGET_PROTOTYPE (target_flags & MASK_PROTOTYPE)
67 #define TARGET_NO_BITFIELD_WORD (target_flags & MASK_NO_BITFIELD_WORD)
68 #define TARGET_TOC ((target_flags & MASK_64BIT) \
69 || ((target_flags & (MASK_RELOCATABLE \
70 | MASK_MINIMAL_TOC)) \
72 || DEFAULT_ABI == ABI_AIX)
74 #define TARGET_BITFIELD_TYPE (! TARGET_NO_BITFIELD_TYPE)
75 #define TARGET_BIG_ENDIAN (! TARGET_LITTLE_ENDIAN)
76 #define TARGET_NO_PROTOTYPE (! TARGET_PROTOTYPE)
77 #define TARGET_NO_TOC (! TARGET_TOC)
78 #define TARGET_NO_EABI (! TARGET_EABI)
80 /* Strings provided by SUBTARGET_OPTIONS */
81 extern const char *rs6000_abi_name;
82 extern const char *rs6000_sdata_name;
83 extern const char *rs6000_tls_size_string; /* For -mtls-size= */
85 /* Override rs6000.h definition. */
86 #undef SUBTARGET_OPTIONS
87 #define SUBTARGET_OPTIONS \
88 { "call-", &rs6000_abi_name, N_("Select ABI calling convention"), 0}, \
89 { "sdata=", &rs6000_sdata_name, N_("Select method for sdata handling"), 0}, \
90 { "tls-size=", &rs6000_tls_size_string, \
91 N_("Specify bit size of immediate TLS offsets"), 0 }
93 #define SDATA_DEFAULT_SIZE 8
95 /* Note, V.4 no longer uses a normal TOC, so make -mfull-toc, be just
96 the same as -mminimal-toc. */
97 /* Override rs6000.h definition. */
98 #undef SUBTARGET_SWITCHES
99 #define SUBTARGET_SWITCHES \
100 { "bit-align", -MASK_NO_BITFIELD_TYPE, \
101 N_("Align to the base type of the bit-field") }, \
102 { "no-bit-align", MASK_NO_BITFIELD_TYPE, \
103 N_("Don't align to the base type of the bit-field") }, \
104 { "strict-align", MASK_STRICT_ALIGN, \
105 N_("Don't assume that unaligned accesses are handled by the system") }, \
106 { "no-strict-align", -MASK_STRICT_ALIGN, \
107 N_("Assume that unaligned accesses are handled by the system") }, \
108 { "relocatable", MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
109 N_("Produce code relocatable at runtime") }, \
110 { "no-relocatable", -MASK_RELOCATABLE, \
111 N_("Don't produce code relocatable at runtime") }, \
112 { "relocatable-lib", MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
113 N_("Produce code relocatable at runtime") }, \
114 { "no-relocatable-lib", -MASK_RELOCATABLE, \
115 N_("Don't produce code relocatable at runtime") }, \
116 { "little-endian", MASK_LITTLE_ENDIAN, \
117 N_("Produce little endian code") }, \
118 { "little", MASK_LITTLE_ENDIAN, \
119 N_("Produce little endian code") }, \
120 { "big-endian", -MASK_LITTLE_ENDIAN, \
121 N_("Produce big endian code") }, \
122 { "big", -MASK_LITTLE_ENDIAN, \
123 N_("Produce big endian code") }, \
124 { "no-toc", 0, N_("no description yet") }, \
125 { "toc", MASK_MINIMAL_TOC, N_("no description yet") }, \
126 { "full-toc", MASK_MINIMAL_TOC, N_("no description yet") }, \
127 { "prototype", MASK_PROTOTYPE, N_("no description yet") }, \
128 { "no-prototype", -MASK_PROTOTYPE, N_("no description yet") }, \
129 { "no-traceback", 0, N_("no description yet") }, \
130 { "eabi", MASK_EABI, N_("Use EABI") }, \
131 { "no-eabi", -MASK_EABI, N_("Don't use EABI") }, \
132 { "bit-word", -MASK_NO_BITFIELD_WORD, "" }, \
133 { "no-bit-word", MASK_NO_BITFIELD_WORD, \
134 N_("Do not allow bit-fields to cross word boundaries") }, \
135 { "regnames", MASK_REGNAMES, \
136 N_("Use alternate register names") }, \
137 { "no-regnames", -MASK_REGNAMES, \
138 N_("Don't use alternate register names") }, \
139 { "sdata", 0, N_("no description yet") }, \
140 { "no-sdata", 0, N_("no description yet") }, \
142 N_("Link with libsim.a, libc.a and sim-crt0.o") }, \
144 N_("Link with libads.a, libc.a and crt0.o") }, \
145 { "yellowknife", 0, \
146 N_("Link with libyk.a, libc.a and crt0.o") }, \
148 N_("Link with libmvme.a, libc.a and crt0.o") }, \
150 N_("Set the PPC_EMB bit in the ELF flags header") }, \
151 { "windiss", 0, N_("Use the WindISS simulator") }, \
152 { "shlib", 0, N_("no description yet") }, \
153 { "64", MASK_64BIT | MASK_POWERPC64 | MASK_POWERPC, \
154 N_("Generate 64-bit code") }, \
155 { "32", - (MASK_64BIT | MASK_POWERPC64), \
156 N_("Generate 32-bit code") }, \
157 EXTRA_SUBTARGET_SWITCHES \
158 { "newlib", 0, N_("no description yet") },
160 /* This is meant to be redefined in the host dependent files. */
161 #define EXTRA_SUBTARGET_SWITCHES
163 /* Sometimes certain combinations of command options do not make sense
164 on a particular target machine. You can define a macro
165 `OVERRIDE_OPTIONS' to take account of this. This macro, if
166 defined, is executed once just after all the command options have
169 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
172 #define SUBTARGET_OVERRIDE_OPTIONS \
175 g_switch_value = SDATA_DEFAULT_SIZE; \
177 if (rs6000_abi_name == NULL) \
178 rs6000_abi_name = RS6000_ABI_NAME; \
180 if (!strcmp (rs6000_abi_name, "sysv")) \
181 rs6000_current_abi = ABI_V4; \
182 else if (!strcmp (rs6000_abi_name, "sysv-noeabi")) \
184 rs6000_current_abi = ABI_V4; \
185 target_flags &= ~ MASK_EABI; \
187 else if (!strcmp (rs6000_abi_name, "sysv-eabi") \
188 || !strcmp (rs6000_abi_name, "eabi")) \
190 rs6000_current_abi = ABI_V4; \
191 target_flags |= MASK_EABI; \
193 else if (!strcmp (rs6000_abi_name, "aixdesc")) \
194 rs6000_current_abi = ABI_AIX; \
195 else if (!strcmp (rs6000_abi_name, "freebsd")) \
196 rs6000_current_abi = ABI_V4; \
197 else if (!strcmp (rs6000_abi_name, "linux")) \
200 rs6000_current_abi = ABI_AIX; \
202 rs6000_current_abi = ABI_V4; \
204 else if (!strcmp (rs6000_abi_name, "gnu")) \
205 rs6000_current_abi = ABI_V4; \
206 else if (!strcmp (rs6000_abi_name, "netbsd")) \
207 rs6000_current_abi = ABI_V4; \
208 else if (!strcmp (rs6000_abi_name, "openbsd")) \
209 rs6000_current_abi = ABI_V4; \
210 else if (!strcmp (rs6000_abi_name, "i960-old")) \
212 rs6000_current_abi = ABI_V4; \
213 target_flags |= (MASK_LITTLE_ENDIAN | MASK_EABI \
214 | MASK_NO_BITFIELD_WORD); \
215 target_flags &= ~MASK_STRICT_ALIGN; \
219 rs6000_current_abi = ABI_V4; \
220 error ("bad value for -mcall-%s", rs6000_abi_name); \
223 if (rs6000_sdata_name) \
225 if (!strcmp (rs6000_sdata_name, "none")) \
226 rs6000_sdata = SDATA_NONE; \
227 else if (!strcmp (rs6000_sdata_name, "data")) \
228 rs6000_sdata = SDATA_DATA; \
229 else if (!strcmp (rs6000_sdata_name, "default")) \
230 rs6000_sdata = (TARGET_EABI) ? SDATA_EABI : SDATA_SYSV; \
231 else if (!strcmp (rs6000_sdata_name, "sysv")) \
232 rs6000_sdata = SDATA_SYSV; \
233 else if (!strcmp (rs6000_sdata_name, "eabi")) \
234 rs6000_sdata = SDATA_EABI; \
236 error ("bad value for -msdata=%s", rs6000_sdata_name); \
238 else if (DEFAULT_ABI == ABI_V4) \
240 rs6000_sdata = SDATA_DATA; \
241 rs6000_sdata_name = "data"; \
245 rs6000_sdata = SDATA_NONE; \
246 rs6000_sdata_name = "none"; \
249 if (TARGET_RELOCATABLE && \
250 (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV)) \
252 rs6000_sdata = SDATA_DATA; \
253 error ("-mrelocatable and -msdata=%s are incompatible", \
254 rs6000_sdata_name); \
257 else if (flag_pic && DEFAULT_ABI != ABI_AIX \
258 && (rs6000_sdata == SDATA_EABI \
259 || rs6000_sdata == SDATA_SYSV)) \
261 rs6000_sdata = SDATA_DATA; \
262 error ("-f%s and -msdata=%s are incompatible", \
263 (flag_pic > 1) ? "PIC" : "pic", \
264 rs6000_sdata_name); \
267 if ((rs6000_sdata != SDATA_NONE && DEFAULT_ABI != ABI_V4) \
268 || (rs6000_sdata == SDATA_EABI && !TARGET_EABI)) \
270 rs6000_sdata = SDATA_NONE; \
271 error ("-msdata=%s and -mcall-%s are incompatible", \
272 rs6000_sdata_name, rs6000_abi_name); \
275 targetm.have_srodata_section = rs6000_sdata == SDATA_EABI; \
277 if (TARGET_RELOCATABLE && !TARGET_MINIMAL_TOC) \
279 target_flags |= MASK_MINIMAL_TOC; \
280 error ("-mrelocatable and -mno-minimal-toc are incompatible"); \
283 if (TARGET_RELOCATABLE && rs6000_current_abi == ABI_AIX) \
285 target_flags &= ~MASK_RELOCATABLE; \
286 error ("-mrelocatable and -mcall-%s are incompatible", \
290 if (!TARGET_64BIT && flag_pic > 1 && rs6000_current_abi == ABI_AIX) \
293 error ("-fPIC and -mcall-%s are incompatible", \
297 if (rs6000_current_abi == ABI_AIX && TARGET_LITTLE_ENDIAN) \
299 target_flags &= ~MASK_LITTLE_ENDIAN; \
300 error ("-mcall-aixdesc must be big endian"); \
303 /* Treat -fPIC the same as -mrelocatable. */ \
304 if (flag_pic > 1 && DEFAULT_ABI != ABI_AIX) \
305 target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC; \
307 else if (TARGET_RELOCATABLE) \
311 #ifndef RS6000_BI_ARCH
312 # define SUBSUBTARGET_OVERRIDE_OPTIONS \
314 if ((TARGET_DEFAULT ^ target_flags) & MASK_64BIT) \
315 error ("-m%s not supported in this configuration", \
316 (target_flags & MASK_64BIT) ? "64" : "32"); \
320 /* Override rs6000.h definition. */
321 #undef TARGET_DEFAULT
322 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
324 /* Override rs6000.h definition. */
325 #undef PROCESSOR_DEFAULT
326 #define PROCESSOR_DEFAULT PROCESSOR_PPC750
328 /* SVR4 only defined for PowerPC, so short-circuit POWER patterns. */
330 #define TARGET_POWER 0
333 /* System V.4 uses register 13 as a pointer to the small data area,
334 so it is not available to the normal user. */
337 /* Size of the V.4 varargs area if needed. */
338 /* Override rs6000.h definition. */
339 #undef RS6000_VARARGS_AREA
340 #define RS6000_VARARGS_AREA (current_function_stdarg ? RS6000_VARARGS_SIZE : 0)
342 /* Override default big endianism definitions in rs6000.h. */
343 #undef BYTES_BIG_ENDIAN
344 #undef WORDS_BIG_ENDIAN
345 #define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN)
346 #define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN)
348 /* Define this to set the endianness to use in libgcc2.c, which can
349 not depend on target_flags. */
350 #if !defined(__LITTLE_ENDIAN__) && !defined(__sun__)
351 #define LIBGCC2_WORDS_BIG_ENDIAN 1
353 #define LIBGCC2_WORDS_BIG_ENDIAN 0
356 /* Define cutoff for using external functions to save floating point.
357 Currently on V.4, always use inline stores. */
358 #define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64)
360 /* Put jump tables in read-only memory, rather than in .text. */
361 #define JUMP_TABLES_IN_TEXT_SECTION 0
363 /* Prefix and suffix to use to saving floating point. */
364 #define SAVE_FP_PREFIX "_savefpr_"
365 #define SAVE_FP_SUFFIX "_l"
367 /* Prefix and suffix to use to restoring floating point. */
368 #define RESTORE_FP_PREFIX "_restfpr_"
369 #define RESTORE_FP_SUFFIX "_l"
371 /* Type used for ptrdiff_t, as a string used in a declaration. */
372 #define PTRDIFF_TYPE "int"
374 /* Type used for wchar_t, as a string used in a declaration. */
375 /* Override svr4.h definition. */
377 #define WCHAR_TYPE "long int"
379 /* Width of wchar_t in bits. */
380 /* Override svr4.h definition. */
381 #undef WCHAR_TYPE_SIZE
382 #define WCHAR_TYPE_SIZE 32
384 /* Make int foo : 8 not cause structures to be aligned to an int boundary. */
385 /* Override elfos.h definition. */
386 #undef PCC_BITFIELD_TYPE_MATTERS
387 #define PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE)
389 #undef BITFIELD_NBYTES_LIMITED
390 #define BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD)
392 /* Define this macro to be the value 1 if instructions will fail to
393 work if given data not on the nominal alignment. If instructions
394 will merely go slower in that case, define this macro as 0. */
395 #undef STRICT_ALIGNMENT
396 #define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN)
398 /* Define this macro if you wish to preserve a certain alignment for
399 the stack pointer, greater than what the hardware enforces. The
400 definition is a C expression for the desired alignment (measured
401 in bits). This macro must evaluate to a value equal to or larger
403 For the SYSV ABI and variants the alignment of the stack pointer
404 is usually controlled manually in rs6000.c. However, to maintain
405 alignment across alloca () in all circumstances,
406 PREFERRED_STACK_BOUNDARY needs to be set as well.
407 This has the additional advantage of allowing a bigger maximum
408 alignment of user objects on the stack. */
410 #undef PREFERRED_STACK_BOUNDARY
411 #define PREFERRED_STACK_BOUNDARY 128
413 /* Real stack boundary as mandated by the appropriate ABI. */
414 #define ABI_STACK_BOUNDARY \
415 ((TARGET_EABI && !TARGET_ALTIVEC && !TARGET_ALTIVEC_ABI) ? 64 : 128)
417 /* An expression for the alignment of a structure field FIELD if the
418 alignment computed in the usual way is COMPUTED. */
419 #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
420 ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \
423 /* Define this macro as an expression for the alignment of a type
424 (given by TYPE as a tree node) if the alignment computed in the
425 usual way is COMPUTED and the alignment explicitly specified was
427 #define ROUND_TYPE_ALIGN(TYPE, COMPUTED, SPECIFIED) \
428 ((TARGET_ALTIVEC && TREE_CODE (TYPE) == VECTOR_TYPE) \
429 ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128) \
430 : MAX (COMPUTED, SPECIFIED))
432 #undef BIGGEST_FIELD_ALIGNMENT
434 /* Use ELF style section commands. */
436 #define TEXT_SECTION_ASM_OP "\t.section\t\".text\""
438 #define DATA_SECTION_ASM_OP "\t.section\t\".data\""
440 #define BSS_SECTION_ASM_OP "\t.section\t\".bss\""
442 /* Override elfos.h definition. */
443 #undef INIT_SECTION_ASM_OP
444 #define INIT_SECTION_ASM_OP "\t.section\t\".init\",\"ax\""
446 /* Override elfos.h definition. */
447 #undef FINI_SECTION_ASM_OP
448 #define FINI_SECTION_ASM_OP "\t.section\t\".fini\",\"ax\""
450 #define TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\""
452 /* Put PC relative got entries in .got2. */
453 #define MINIMAL_TOC_SECTION_ASM_OP \
454 (TARGET_RELOCATABLE || (flag_pic && DEFAULT_ABI != ABI_AIX) \
455 ? "\t.section\t\".got2\",\"aw\"" : "\t.section\t\".got1\",\"aw\"")
457 #define SDATA_SECTION_ASM_OP "\t.section\t\".sdata\",\"aw\""
458 #define SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\""
459 #define SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits"
461 /* Besides the usual ELF sections, we need a toc section. */
462 /* Override elfos.h definition. */
463 #undef EXTRA_SECTIONS
464 #define EXTRA_SECTIONS in_toc, in_sdata, in_sdata2, in_sbss, in_init, in_fini
466 /* Override elfos.h definition. */
467 #undef EXTRA_SECTION_FUNCTIONS
468 #define EXTRA_SECTION_FUNCTIONS \
469 TOC_SECTION_FUNCTION \
470 SDATA_SECTION_FUNCTION \
471 SDATA2_SECTION_FUNCTION \
472 SBSS_SECTION_FUNCTION \
473 INIT_SECTION_FUNCTION \
474 FINI_SECTION_FUNCTION
476 #define TOC_SECTION_FUNCTION \
480 if (in_section != in_toc) \
482 in_section = in_toc; \
483 if (DEFAULT_ABI == ABI_AIX \
484 && TARGET_MINIMAL_TOC \
485 && !TARGET_RELOCATABLE) \
487 if (! toc_initialized) \
489 toc_initialized = 1; \
490 fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \
491 (*targetm.asm_out.internal_label) (asm_out_file, "LCTOC", 0); \
492 fprintf (asm_out_file, "\t.tc "); \
493 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1[TC],"); \
494 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
495 fprintf (asm_out_file, "\n"); \
497 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
498 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
499 fprintf (asm_out_file, " = .+32768\n"); \
502 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
504 else if (DEFAULT_ABI == ABI_AIX && !TARGET_RELOCATABLE) \
505 fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \
508 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
509 if (! toc_initialized) \
511 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
512 fprintf (asm_out_file, " = .+32768\n"); \
513 toc_initialized = 1; \
519 extern int in_toc_section (void); \
520 int in_toc_section (void) \
522 return in_section == in_toc; \
525 #define SDATA_SECTION_FUNCTION \
527 sdata_section (void) \
529 if (in_section != in_sdata) \
531 in_section = in_sdata; \
532 fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \
536 #define SDATA2_SECTION_FUNCTION \
538 sdata2_section (void) \
540 if (in_section != in_sdata2) \
542 in_section = in_sdata2; \
543 fprintf (asm_out_file, "%s\n", SDATA2_SECTION_ASM_OP); \
547 #define SBSS_SECTION_FUNCTION \
549 sbss_section (void) \
551 if (in_section != in_sbss) \
553 in_section = in_sbss; \
554 fprintf (asm_out_file, "%s\n", SBSS_SECTION_ASM_OP); \
558 #define INIT_SECTION_FUNCTION \
560 init_section (void) \
562 if (in_section != in_init) \
564 in_section = in_init; \
565 fprintf (asm_out_file, "%s\n", INIT_SECTION_ASM_OP); \
569 #define FINI_SECTION_FUNCTION \
571 fini_section (void) \
573 if (in_section != in_fini) \
575 in_section = in_fini; \
576 fprintf (asm_out_file, "%s\n", FINI_SECTION_ASM_OP); \
580 /* Override default elf definitions. */
581 #undef TARGET_ASM_SELECT_RTX_SECTION
582 #define TARGET_ASM_SELECT_RTX_SECTION rs6000_elf_select_rtx_section
583 #undef TARGET_ASM_SELECT_SECTION
584 #define TARGET_ASM_SELECT_SECTION rs6000_elf_select_section
585 #define TARGET_ASM_UNIQUE_SECTION rs6000_elf_unique_section
587 /* Return nonzero if this entry is to be written into the constant pool
588 in a special way. We do so if this is a SYMBOL_REF, LABEL_REF or a CONST
589 containing one of them. If -mfp-in-toc (the default), we also do
590 this for floating-point constants. We actually can only do this
591 if the FP formats of the target and host machines are the same, but
592 we can't check that since not every file that uses
593 GO_IF_LEGITIMATE_ADDRESS_P includes real.h.
595 Unlike AIX, we don't key off of -mminimal-toc, but instead do not
596 allow floating point constants in the TOC if -mrelocatable. */
598 #undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
599 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \
601 && (GET_CODE (X) == SYMBOL_REF \
602 || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \
603 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \
604 || GET_CODE (X) == LABEL_REF \
605 || (GET_CODE (X) == CONST_INT \
606 && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \
607 || (!TARGET_NO_FP_IN_TOC \
608 && !TARGET_RELOCATABLE \
609 && GET_CODE (X) == CONST_DOUBLE \
610 && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
611 && BITS_PER_WORD == HOST_BITS_PER_INT)))
613 /* These macros generate the special .type and .size directives which
614 are used to set the corresponding fields of the linker symbol table
615 entries in an ELF object file under SVR4. These macros also output
616 the starting labels for the relevant functions/objects. */
618 /* Write the extra assembler code needed to declare a function properly.
619 Some svr4 assemblers need to also have something extra said about the
620 function's return value. We allow for that here. */
622 extern int rs6000_pic_labelno;
624 /* Override elfos.h definition. */
625 #undef ASM_DECLARE_FUNCTION_NAME
626 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
627 rs6000_elf_declare_function_name ((FILE), (NAME), (DECL))
629 /* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore
630 flag. The LOCAL_LABEL_PREFIX variable is used by dbxelf.h. */
632 #define LOCAL_LABEL_PREFIX "."
633 #define USER_LABEL_PREFIX ""
635 /* svr4.h overrides (*targetm.asm_out.internal_label). */
637 #define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \
638 asm_fprintf (FILE, "%L%s", PREFIX)
640 /* Globalizing directive for a label. */
641 #define GLOBAL_ASM_OP "\t.globl "
643 /* This says how to output assembler code to declare an
644 uninitialized internal linkage data object. Under SVR4,
645 the linker seems to want the alignment of data objects
646 to depend on their types. We do exactly that here. */
648 #define LOCAL_ASM_OP "\t.local\t"
650 #define LCOMM_ASM_OP "\t.lcomm\t"
652 /* Override elfos.h definition. */
653 #undef ASM_OUTPUT_ALIGNED_LOCAL
654 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
656 if (rs6000_sdata != SDATA_NONE && (SIZE) > 0 \
657 && (SIZE) <= g_switch_value) \
660 ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \
661 ASM_OUTPUT_LABEL (FILE, NAME); \
662 ASM_OUTPUT_SKIP (FILE, SIZE); \
663 if (!flag_inhibit_size_directive && (SIZE) > 0) \
664 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \
668 fprintf (FILE, "%s", LCOMM_ASM_OP); \
669 assemble_name ((FILE), (NAME)); \
670 fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \
671 (SIZE), (ALIGN) / BITS_PER_UNIT); \
673 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
676 /* Describe how to emit uninitialized external linkage items. */
677 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
679 ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN); \
682 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
683 /* To support -falign-* switches we need to use .p2align so
684 that alignment directives in code sections will be padded
685 with no-op instructions, rather than zeroes. */
686 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
689 if ((MAX_SKIP) == 0) \
690 fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
692 fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
696 /* This is how to output code to push a register on the stack.
697 It need not be very fast code.
699 On the rs6000, we must keep the backchain up to date. In order
700 to simplify things, always allocate 16 bytes for a push (System V
701 wants to keep stack aligned to a 16 byte boundary). */
703 #define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \
705 if (DEFAULT_ABI == ABI_V4) \
707 "\t{stu|stwu} %s,-16(%s)\n\t{st|stw} %s,12(%s)\n", \
708 reg_names[1], reg_names[1], reg_names[REGNO], \
712 /* This is how to output an insn to pop a register from the stack.
713 It need not be very fast code. */
715 #define ASM_OUTPUT_REG_POP(FILE, REGNO) \
717 if (DEFAULT_ABI == ABI_V4) \
719 "\t{l|lwz} %s,12(%s)\n\t{ai|addic} %s,%s,16\n", \
720 reg_names[REGNO], reg_names[1], reg_names[1], \
724 /* Switch Recognition by gcc.c. Add -G xx support. */
726 /* Override svr4.h definition. */
727 #undef SWITCH_TAKES_ARG
728 #define SWITCH_TAKES_ARG(CHAR) \
729 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
730 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
731 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
732 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
733 || (CHAR) == 'B' || (CHAR) == 'b' || (CHAR) == 'G')
735 extern int fixuplabelno;
737 /* Handle constructors specially for -mrelocatable. */
738 #define TARGET_ASM_CONSTRUCTOR rs6000_elf_asm_out_constructor
739 #define TARGET_ASM_DESTRUCTOR rs6000_elf_asm_out_destructor
741 /* This is the end of what might become sysv4.h. */
743 /* Use DWARF 2 debugging information by default. */
744 #undef PREFERRED_DEBUGGING_TYPE
745 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
747 /* Historically we have also supported stabs debugging. */
748 #define DBX_DEBUGGING_INFO 1
750 #define DBX_REGISTER_NUMBER(REGNO) rs6000_dbx_register_number (REGNO)
752 /* Map register numbers held in the call frame info that gcc has
753 collected using DWARF_FRAME_REGNUM to those that should be output in
754 .debug_frame and .eh_frame. We continue to use gcc hard reg numbers
755 for .eh_frame, but use the numbers mandated by the various ABIs for
756 .debug_frame. rs6000_emit_prologue has translated any combination of
757 CR2, CR3, CR4 saves to a save of CR2. The actual code emitted saves
758 the whole of CR, so we map CR2_REGNO to the DWARF reg for CR. */
759 #define DWARF2_FRAME_REG_OUT(REGNO, FOR_EH) \
760 ((FOR_EH) ? (REGNO) \
761 : (REGNO) == CR2_REGNO ? 64 \
762 : DBX_REGISTER_NUMBER (REGNO))
764 #define TARGET_ENCODE_SECTION_INFO rs6000_elf_encode_section_info
765 #define TARGET_IN_SMALL_DATA_P rs6000_elf_in_small_data_p
766 #define TARGET_SECTION_TYPE_FLAGS rs6000_elf_section_type_flags
768 /* The ELF version doesn't encode [DS] or whatever at the end of symbols. */
770 #define RS6000_OUTPUT_BASENAME(FILE, NAME) \
771 assemble_name (FILE, NAME)
773 /* We have to output the stabs for the function name *first*, before
774 outputting its label. */
776 #define DBX_FUNCTION_FIRST
778 /* This is the end of what might become sysv4dbx.h. */
780 #ifndef TARGET_VERSION
781 #define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)");
784 #define TARGET_OS_SYSV_CPP_BUILTINS() \
789 builtin_define ("__pic__=1"); \
790 builtin_define ("__PIC__=1"); \
792 else if (flag_pic == 2) \
794 builtin_define ("__pic__=2"); \
795 builtin_define ("__PIC__=2"); \
797 if (target_flags_explicit \
798 & MASK_RELOCATABLE) \
799 builtin_define ("_RELOCATABLE"); \
803 #ifndef TARGET_OS_CPP_BUILTINS
804 #define TARGET_OS_CPP_BUILTINS() \
807 builtin_define_std ("PPC"); \
808 builtin_define_std ("unix"); \
809 builtin_define ("__svr4__"); \
810 builtin_assert ("system=unix"); \
811 builtin_assert ("system=svr4"); \
812 builtin_assert ("cpu=powerpc"); \
813 builtin_assert ("machine=powerpc"); \
814 TARGET_OS_SYSV_CPP_BUILTINS (); \
819 /* Pass various options to the assembler. */
820 /* Override svr4.h definition. */
822 #define ASM_SPEC "%(asm_cpu) \
823 %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
824 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
825 %{mrelocatable} %{mrelocatable-lib} %{fpic|fpie|fPIC|fPIE:-K PIC} \
826 %{memb|msdata|msdata=eabi: -memb} \
827 %{mlittle|mlittle-endian:-mlittle; \
828 mbig|mbig-endian :-mbig; \
835 mcall-i960-old :-mlittle}"
837 #define CC1_ENDIAN_BIG_SPEC ""
839 #define CC1_ENDIAN_LITTLE_SPEC "\
840 %{!mstrict-align: %{!mno-strict-align: \
846 #define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)"
848 /* Pass -G xxx to the compiler and set correct endian mode. */
849 #define CC1_SPEC "%{G*} \
850 %{mlittle|mlittle-endian: %(cc1_endian_little); \
851 mbig |mbig-endian : %(cc1_endian_big); \
857 mcall-gnu : -mbig %(cc1_endian_big); \
858 mcall-i960-old : -mlittle %(cc1_endian_little); \
859 : %(cc1_endian_default)} \
860 %{mno-sdata: -msdata=none } \
861 %{meabi: %{!mcall-*: -mcall-sysv }} \
862 %{!meabi: %{!mno-eabi: \
863 %{mrelocatable: -meabi } \
864 %{mcall-freebsd: -mno-eabi } \
865 %{mcall-i960-old: -meabi } \
866 %{mcall-linux: -mno-eabi } \
867 %{mcall-gnu: -mno-eabi } \
868 %{mcall-netbsd: -mno-eabi } \
869 %{mcall-openbsd: -mno-eabi }}} \
870 %{msdata: -msdata=default} \
871 %{mno-sdata: -msdata=none} \
874 /* Don't put -Y P,<path> for cross compilers. */
875 #ifndef CROSS_COMPILE
876 #define LINK_PATH_SPEC "\
878 %{!nostdlib: %{!YP,*: \
880 %{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
881 %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
882 %{!R*: %{!L*: -R /usr/ucblib}} \
884 %{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
885 %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}}"
888 #define LINK_PATH_SPEC ""
891 /* Default starting address if specified. */
892 #define LINK_START_SPEC "\
893 %{mads : %(link_start_ads) ; \
894 myellowknife : %(link_start_yellowknife) ; \
895 mmvme : %(link_start_mvme) ; \
896 msim : %(link_start_sim) ; \
897 mwindiss : %(link_start_windiss) ; \
898 mcall-freebsd: %(link_start_freebsd) ; \
899 mcall-linux : %(link_start_linux) ; \
900 mcall-gnu : %(link_start_gnu) ; \
901 mcall-netbsd : %(link_start_netbsd) ; \
902 mcall-openbsd: %(link_start_openbsd) ; \
903 : %(link_start_default) }"
905 #define LINK_START_DEFAULT_SPEC ""
907 /* Override svr4.h definition. */
910 %{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \
914 %{!Wl,-T*: %{!T*: %(link_start) }} \
918 /* For now, turn off shared libraries by default. */
919 #ifndef SHARED_LIB_SUPPORT
920 #define NO_SHARED_LIB_SUPPORT
923 #ifndef NO_SHARED_LIB_SUPPORT
924 /* Shared libraries are default. */
925 #define LINK_SHLIB_SPEC "\
926 %{!static: %(link_path) %{!R*:%{L*:-R %*}}} \
928 %{static:-dn -Bstatic} \
929 %{shared:-G -dy -z text} \
930 %{symbolic:-Bsymbolic -G -dy -z text}"
933 /* Shared libraries are not default. */
934 #define LINK_SHLIB_SPEC "\
935 %{mshlib: %(link_path) } \
936 %{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \
938 %{shared:-G -dy -z text %(link_path) } \
939 %{symbolic:-Bsymbolic -G -dy -z text %(link_path) }"
942 /* Override the default target of the linker. */
943 #define LINK_TARGET_SPEC "\
944 %{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \
945 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
946 %{mcall-i960-old: --oformat elf32-powerpcle} \
949 /* Any specific OS flags. */
950 #define LINK_OS_SPEC "\
951 %{mads : %(link_os_ads) ; \
952 myellowknife : %(link_os_yellowknife) ; \
953 mmvme : %(link_os_mvme) ; \
954 msim : %(link_os_sim) ; \
955 mwindiss : %(link_os_windiss) ; \
956 mcall-freebsd: %(link_os_freebsd) ; \
957 mcall-linux : %(link_os_linux) ; \
958 mcall-gnu : %(link_os_gnu) ; \
959 mcall-netbsd : %(link_os_netbsd) ; \
960 mcall-openbsd: %(link_os_openbsd) ; \
961 : %(link_os_default) }"
963 #define LINK_OS_DEFAULT_SPEC ""
965 /* Override rs6000.h definition. */
967 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
968 %{mads : %(cpp_os_ads) ; \
969 myellowknife : %(cpp_os_yellowknife) ; \
970 mmvme : %(cpp_os_mvme) ; \
971 msim : %(cpp_os_sim) ; \
972 mwindiss : %(cpp_os_windiss) ; \
973 mcall-freebsd: %(cpp_os_freebsd) ; \
974 mcall-linux : %(cpp_os_linux) ; \
975 mcall-gnu : %(cpp_os_gnu) ; \
976 mcall-netbsd : %(cpp_os_netbsd) ; \
977 mcall-openbsd: %(cpp_os_openbsd) ; \
978 : %(cpp_os_default) }"
980 #define CPP_OS_DEFAULT_SPEC ""
982 /* Override svr4.h definition. */
983 #undef STARTFILE_SPEC
984 #define STARTFILE_SPEC "\
985 %{mads : %(startfile_ads) ; \
986 myellowknife : %(startfile_yellowknife) ; \
987 mmvme : %(startfile_mvme) ; \
988 msim : %(startfile_sim) ; \
989 mwindiss : %(startfile_windiss) ; \
990 mcall-freebsd: %(startfile_freebsd) ; \
991 mcall-linux : %(startfile_linux) ; \
992 mcall-gnu : %(startfile_gnu) ; \
993 mcall-netbsd : %(startfile_netbsd) ; \
994 mcall-openbsd: %(startfile_openbsd) ; \
995 : %(startfile_default) }"
997 #define STARTFILE_DEFAULT_SPEC ""
999 /* Override svr4.h definition. */
1002 %{mads : %(lib_ads) ; \
1003 myellowknife : %(lib_yellowknife) ; \
1004 mmvme : %(lib_mvme) ; \
1005 msim : %(lib_sim) ; \
1006 mwindiss : %(lib_windiss) ; \
1007 mcall-freebsd: %(lib_freebsd) ; \
1008 mcall-linux : %(lib_linux) ; \
1009 mcall-gnu : %(lib_gnu) ; \
1010 mcall-netbsd : %(lib_netbsd) ; \
1011 mcall-openbsd: %(lib_openbsd) ; \
1014 #define LIB_DEFAULT_SPEC ""
1016 /* Override svr4.h definition. */
1018 #define ENDFILE_SPEC "\
1019 %{mads : crtsavres.o%s %(endfile_ads) ; \
1020 myellowknife : crtsavres.o%s %(endfile_yellowknife) ; \
1021 mmvme : crtsavres.o%s %(endfile_mvme) ; \
1022 msim : crtsavres.o%s %(endfile_sim) ; \
1023 mwindiss : %(endfile_windiss) ; \
1024 mcall-freebsd: crtsavres.o%s %(endfile_freebsd) ; \
1025 mcall-linux : crtsavres.o%s %(endfile_linux) ; \
1026 mcall-gnu : crtsavres.o%s %(endfile_gnu) ; \
1027 mcall-netbsd : crtsavres.o%s %(endfile_netbsd) ; \
1028 mcall-openbsd: crtsavres.o%s %(endfile_openbsd) ; \
1029 : %(crtsavres_default) %(endfile_default) }"
1031 #define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s"
1033 #define ENDFILE_DEFAULT_SPEC ""
1035 /* Motorola ADS support. */
1036 #define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
1038 #define STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1040 #define ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s"
1042 #define LINK_START_ADS_SPEC "-T ads.ld%s"
1044 #define LINK_OS_ADS_SPEC ""
1046 #define CPP_OS_ADS_SPEC ""
1048 /* Motorola Yellowknife support. */
1049 #define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group"
1051 #define STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1053 #define ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s"
1055 #define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s"
1057 #define LINK_OS_YELLOWKNIFE_SPEC ""
1059 #define CPP_OS_YELLOWKNIFE_SPEC ""
1061 /* Motorola MVME support. */
1062 #define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group"
1064 #define STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1066 #define ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s"
1068 #define LINK_START_MVME_SPEC "-Ttext 0x40000"
1070 #define LINK_OS_MVME_SPEC ""
1072 #define CPP_OS_MVME_SPEC ""
1074 /* PowerPC simulator based on netbsd system calls support. */
1075 #define LIB_SIM_SPEC "--start-group -lsim -lc --end-group"
1077 #define STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s"
1079 #define ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s"
1081 #define LINK_START_SIM_SPEC ""
1083 #define LINK_OS_SIM_SPEC "-m elf32ppcsim"
1085 #define CPP_OS_SIM_SPEC ""
1087 /* FreeBSD support. */
1089 #define CPP_OS_FREEBSD_SPEC "\
1090 -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \
1091 -Acpu=powerpc -Amachine=powerpc"
1093 #define STARTFILE_FREEBSD_SPEC FBSD_STARTFILE_SPEC
1094 #define ENDFILE_FREEBSD_SPEC FBSD_ENDFILE_SPEC
1095 #define LIB_FREEBSD_SPEC FBSD_LIB_SPEC
1096 #define LINK_START_FREEBSD_SPEC ""
1098 #define LINK_OS_FREEBSD_SPEC "\
1099 %{p:%nconsider using `-pg' instead of `-p' with gprof(1)} \
1102 %{assert*} %{R*} %{rpath*} %{defsym*} \
1103 %{shared:-Bshareable %{h*} %{soname*}} \
1106 %{rdynamic: -export-dynamic} \
1107 %{!dynamic-linker:-dynamic-linker %(fbsd_dynamic_linker) }} \
1108 %{static:-Bstatic}} \
1109 %{symbolic:-Bsymbolic}"
1111 /* GNU/Linux support. */
1112 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1113 %{!mnewlib: %{pthread:-lpthread} %{shared:-lc} \
1114 %{!shared: %{profile:-lc_p} %{!profile:-lc}}}"
1117 #define STARTFILE_LINUX_SPEC "\
1118 %{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
1119 %{mnewlib:ecrti.o%s;:crti.o%s} \
1120 %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
1122 #define STARTFILE_LINUX_SPEC "\
1123 %{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}} \
1124 %{mnewlib:ecrti.o%s;:crti.o%s} \
1125 %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
1128 #define ENDFILE_LINUX_SPEC "\
1129 %{shared|pie:crtendS.o%s;:crtend.o%s} \
1130 %{mnewlib:ecrtn.o%s;:crtn.o%s}"
1132 #define LINK_START_LINUX_SPEC ""
1134 #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1135 %{rdynamic:-export-dynamic} \
1136 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1138 #if defined(HAVE_LD_EH_FRAME_HDR)
1139 # define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
1142 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1145 %{!std=*:-Dunix -D__unix -Dlinux -D__linux} \
1146 %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \
1147 -Asystem=linux -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1149 /* GNU/Hurd support. */
1150 #define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \
1151 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1152 %{profile:-lc_p} %{!profile:-lc}}}"
1154 #define STARTFILE_GNU_SPEC "\
1155 %{!shared: %{!static: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}} \
1156 %{static: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
1157 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1158 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1160 #define ENDFILE_GNU_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1161 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1163 #define LINK_START_GNU_SPEC ""
1165 #define LINK_OS_GNU_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1166 %{rdynamic:-export-dynamic} \
1167 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1169 #define CPP_OS_GNU_SPEC "-D__unix__ -D__gnu_hurd__ -D__GNU__ \
1171 %{!ansi: -Dunix -D__unix}} \
1172 -Asystem=gnu -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1174 /* NetBSD support. */
1175 #define LIB_NETBSD_SPEC "\
1176 %{profile:-lgmon -lc_p} %{!profile:-lc}"
1178 #define STARTFILE_NETBSD_SPEC "\
1179 ncrti.o%s crt0.o%s \
1180 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1182 #define ENDFILE_NETBSD_SPEC "\
1183 %{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1186 #define LINK_START_NETBSD_SPEC "\
1189 #define LINK_OS_NETBSD_SPEC "\
1190 %{!shared: %{!static: \
1191 %{rdynamic:-export-dynamic} \
1192 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}}"
1194 #define CPP_OS_NETBSD_SPEC "\
1195 -D__powerpc__ -D__NetBSD__ -D__KPRINTF_ATTRIBUTE__"
1197 /* OpenBSD support. */
1198 #ifndef LIB_OPENBSD_SPEC
1199 #define LIB_OPENBSD_SPEC "%{!shared:%{pthread:-lpthread%{p:_p}%{!p:%{pg:_p}}}} %{!shared:-lc%{p:_p}%{!p:%{pg:_p}}}"
1202 #ifndef STARTFILE_OPENBSD_SPEC
1203 #define STARTFILE_OPENBSD_SPEC "\
1204 %{!shared: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
1205 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1208 #ifndef ENDFILE_OPENBSD_SPEC
1209 #define ENDFILE_OPENBSD_SPEC "\
1210 %{!shared:crtend.o%s} %{shared:crtendS.o%s}"
1213 #ifndef LINK_START_OPENBSD_SPEC
1214 #define LINK_START_OPENBSD_SPEC "-Ttext 0x400074"
1217 #ifndef LINK_OS_OPENBSD_SPEC
1218 #define LINK_OS_OPENBSD_SPEC ""
1221 #ifndef CPP_OS_OPENBSD_SPEC
1222 #define CPP_OS_OPENBSD_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_POSIX_THREADS}"
1225 /* WindISS support. */
1227 #define LIB_WINDISS_SPEC "--start-group -li -lcfp -lwindiss -lram -limpl -limpfp --end-group"
1229 #define CPP_OS_WINDISS_SPEC "\
1233 %{!msoft-float: -D__hardfp} \
1236 #define STARTFILE_WINDISS_SPEC "crt0.o%s crtbegin.o%s"
1238 #define ENDFILE_WINDISS_SPEC "crtend.o%s"
1240 #define LINK_START_WINDISS_SPEC ""
1242 #define LINK_OS_WINDISS_SPEC ""
1244 /* Define any extra SPECS that the compiler needs to generate. */
1245 /* Override rs6000.h definition. */
1246 #undef SUBTARGET_EXTRA_SPECS
1247 #define SUBTARGET_EXTRA_SPECS \
1248 { "crtsavres_default", CRTSAVRES_DEFAULT_SPEC }, \
1249 { "lib_ads", LIB_ADS_SPEC }, \
1250 { "lib_yellowknife", LIB_YELLOWKNIFE_SPEC }, \
1251 { "lib_mvme", LIB_MVME_SPEC }, \
1252 { "lib_sim", LIB_SIM_SPEC }, \
1253 { "lib_freebsd", LIB_FREEBSD_SPEC }, \
1254 { "lib_gnu", LIB_GNU_SPEC }, \
1255 { "lib_linux", LIB_LINUX_SPEC }, \
1256 { "lib_netbsd", LIB_NETBSD_SPEC }, \
1257 { "lib_openbsd", LIB_OPENBSD_SPEC }, \
1258 { "lib_windiss", LIB_WINDISS_SPEC }, \
1259 { "lib_default", LIB_DEFAULT_SPEC }, \
1260 { "startfile_ads", STARTFILE_ADS_SPEC }, \
1261 { "startfile_yellowknife", STARTFILE_YELLOWKNIFE_SPEC }, \
1262 { "startfile_mvme", STARTFILE_MVME_SPEC }, \
1263 { "startfile_sim", STARTFILE_SIM_SPEC }, \
1264 { "startfile_freebsd", STARTFILE_FREEBSD_SPEC }, \
1265 { "startfile_gnu", STARTFILE_GNU_SPEC }, \
1266 { "startfile_linux", STARTFILE_LINUX_SPEC }, \
1267 { "startfile_netbsd", STARTFILE_NETBSD_SPEC }, \
1268 { "startfile_openbsd", STARTFILE_OPENBSD_SPEC }, \
1269 { "startfile_windiss", STARTFILE_WINDISS_SPEC }, \
1270 { "startfile_default", STARTFILE_DEFAULT_SPEC }, \
1271 { "endfile_ads", ENDFILE_ADS_SPEC }, \
1272 { "endfile_yellowknife", ENDFILE_YELLOWKNIFE_SPEC }, \
1273 { "endfile_mvme", ENDFILE_MVME_SPEC }, \
1274 { "endfile_sim", ENDFILE_SIM_SPEC }, \
1275 { "endfile_freebsd", ENDFILE_FREEBSD_SPEC }, \
1276 { "endfile_gnu", ENDFILE_GNU_SPEC }, \
1277 { "endfile_linux", ENDFILE_LINUX_SPEC }, \
1278 { "endfile_netbsd", ENDFILE_NETBSD_SPEC }, \
1279 { "endfile_openbsd", ENDFILE_OPENBSD_SPEC }, \
1280 { "endfile_windiss", ENDFILE_WINDISS_SPEC }, \
1281 { "endfile_default", ENDFILE_DEFAULT_SPEC }, \
1282 { "link_path", LINK_PATH_SPEC }, \
1283 { "link_shlib", LINK_SHLIB_SPEC }, \
1284 { "link_target", LINK_TARGET_SPEC }, \
1285 { "link_start", LINK_START_SPEC }, \
1286 { "link_start_ads", LINK_START_ADS_SPEC }, \
1287 { "link_start_yellowknife", LINK_START_YELLOWKNIFE_SPEC }, \
1288 { "link_start_mvme", LINK_START_MVME_SPEC }, \
1289 { "link_start_sim", LINK_START_SIM_SPEC }, \
1290 { "link_start_freebsd", LINK_START_FREEBSD_SPEC }, \
1291 { "link_start_gnu", LINK_START_GNU_SPEC }, \
1292 { "link_start_linux", LINK_START_LINUX_SPEC }, \
1293 { "link_start_netbsd", LINK_START_NETBSD_SPEC }, \
1294 { "link_start_openbsd", LINK_START_OPENBSD_SPEC }, \
1295 { "link_start_windiss", LINK_START_WINDISS_SPEC }, \
1296 { "link_start_default", LINK_START_DEFAULT_SPEC }, \
1297 { "link_os", LINK_OS_SPEC }, \
1298 { "link_os_ads", LINK_OS_ADS_SPEC }, \
1299 { "link_os_yellowknife", LINK_OS_YELLOWKNIFE_SPEC }, \
1300 { "link_os_mvme", LINK_OS_MVME_SPEC }, \
1301 { "link_os_sim", LINK_OS_SIM_SPEC }, \
1302 { "link_os_freebsd", LINK_OS_FREEBSD_SPEC }, \
1303 { "link_os_linux", LINK_OS_LINUX_SPEC }, \
1304 { "link_os_gnu", LINK_OS_GNU_SPEC }, \
1305 { "link_os_netbsd", LINK_OS_NETBSD_SPEC }, \
1306 { "link_os_openbsd", LINK_OS_OPENBSD_SPEC }, \
1307 { "link_os_windiss", LINK_OS_WINDISS_SPEC }, \
1308 { "link_os_default", LINK_OS_DEFAULT_SPEC }, \
1309 { "cc1_endian_big", CC1_ENDIAN_BIG_SPEC }, \
1310 { "cc1_endian_little", CC1_ENDIAN_LITTLE_SPEC }, \
1311 { "cc1_endian_default", CC1_ENDIAN_DEFAULT_SPEC }, \
1312 { "cpp_os_ads", CPP_OS_ADS_SPEC }, \
1313 { "cpp_os_yellowknife", CPP_OS_YELLOWKNIFE_SPEC }, \
1314 { "cpp_os_mvme", CPP_OS_MVME_SPEC }, \
1315 { "cpp_os_sim", CPP_OS_SIM_SPEC }, \
1316 { "cpp_os_freebsd", CPP_OS_FREEBSD_SPEC }, \
1317 { "cpp_os_gnu", CPP_OS_GNU_SPEC }, \
1318 { "cpp_os_linux", CPP_OS_LINUX_SPEC }, \
1319 { "cpp_os_netbsd", CPP_OS_NETBSD_SPEC }, \
1320 { "cpp_os_openbsd", CPP_OS_OPENBSD_SPEC }, \
1321 { "cpp_os_windiss", CPP_OS_WINDISS_SPEC }, \
1322 { "cpp_os_default", CPP_OS_DEFAULT_SPEC }, \
1323 { "fbsd_dynamic_linker", FBSD_DYNAMIC_LINKER }, \
1324 SUBSUBTARGET_EXTRA_SPECS
1326 #define SUBSUBTARGET_EXTRA_SPECS
1328 /* Define this macro as a C expression for the initializer of an
1329 array of string to tell the driver program which options are
1330 defaults for this target and thus do not need to be handled
1331 specially when using `MULTILIB_OPTIONS'.
1333 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
1334 the target makefile fragment or if none of the options listed in
1335 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
1337 #define MULTILIB_DEFAULTS { "mbig", "mcall-sysv" }
1339 /* Define this macro if the code for function profiling should come
1340 before the function prologue. Normally, the profiling code comes
1342 #define PROFILE_BEFORE_PROLOGUE 1
1344 /* Function name to call to do profiling. */
1345 #define RS6000_MCOUNT "_mcount"
1347 /* Define this macro (to a value of 1) if you want to support the
1348 Win32 style pragmas #pragma pack(push,<n>)' and #pragma
1349 pack(pop)'. The pack(push,<n>) pragma specifies the maximum
1350 alignment (in bytes) of fields within a structure, in much the
1351 same way as the __aligned__' and __packed__' __attribute__'s
1352 do. A pack value of zero resets the behavior to the default.
1353 Successive invocations of this pragma cause the previous values to
1354 be stacked, so that invocations of #pragma pack(pop)' will return
1355 to the previous value. */
1357 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
1359 /* Select a format to encode pointers in exception handling data. CODE
1360 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
1361 true if the symbol may be affected by dynamic relocations. */
1362 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
1363 ((flag_pic || TARGET_RELOCATABLE) \
1364 ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \
1367 #define TARGET_ASM_EXCEPTION_SECTION readonly_data_section
1369 #define DOUBLE_INT_ASM_OP "\t.quad\t"
1371 /* Generate entries in .fixup for relocatable addresses. */
1372 #define RELOCATABLE_NEEDS_FIXUP 1