1 /* Target definitions for GNU compiler for PowerPC running System V.4
2 Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Support.
6 This file is part of GNU CC.
8 GNU CC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GNU CC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GNU CC; see the file COPYING. If not, write to
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
24 /* Header files should be C++ aware in general. */
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
;
84 /* Override rs6000.h definition. */
85 #undef SUBTARGET_OPTIONS
86 #define SUBTARGET_OPTIONS \
87 { "call-", &rs6000_abi_name, N_("Select ABI calling convention") }, \
88 { "sdata=", &rs6000_sdata_name, N_("Select method for sdata handling") }
90 /* Max # of bytes for variables to automatically be put into the .sdata
91 or .sdata2 sections. */
92 extern int g_switch_value
; /* Value of the -G xx switch. */
93 extern int g_switch_set
; /* Whether -G xx was passed. */
95 #define SDATA_DEFAULT_SIZE 8
97 /* Note, V.4 no longer uses a normal TOC, so make -mfull-toc, be just
98 the same as -mminimal-toc. */
99 /* Override rs6000.h definition. */
100 #undef SUBTARGET_SWITCHES
101 #define SUBTARGET_SWITCHES \
102 { "bit-align", -MASK_NO_BITFIELD_TYPE, \
103 N_("Align to the base type of the bit-field") }, \
104 { "no-bit-align", MASK_NO_BITFIELD_TYPE, \
105 N_("Don't align to the base type of the bit-field") }, \
106 { "strict-align", MASK_STRICT_ALIGN, \
107 N_("Don't assume that unaligned accesses are handled by the system") }, \
108 { "no-strict-align", -MASK_STRICT_ALIGN, \
109 N_("Assume that unaligned accesses are handled by the system") }, \
110 { "relocatable", MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
111 N_("Produce code relocatable at runtime") }, \
112 { "no-relocatable", -MASK_RELOCATABLE, \
113 N_("Don't produce code relocatable at runtime") }, \
114 { "relocatable-lib", MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
115 N_("Produce code relocatable at runtime") }, \
116 { "no-relocatable-lib", -MASK_RELOCATABLE, \
117 N_("Don't produce code relocatable at runtime") }, \
118 { "little-endian", MASK_LITTLE_ENDIAN, \
119 N_("Produce little endian code") }, \
120 { "little", MASK_LITTLE_ENDIAN, \
121 N_("Produce little endian code") }, \
122 { "big-endian", -MASK_LITTLE_ENDIAN, \
123 N_("Produce big endian code") }, \
124 { "big", -MASK_LITTLE_ENDIAN, \
125 N_("Produce big endian code") }, \
126 { "no-toc", 0, N_("no description yet") }, \
127 { "toc", MASK_MINIMAL_TOC, N_("no description yet") }, \
128 { "full-toc", MASK_MINIMAL_TOC, N_("no description yet") }, \
129 { "prototype", MASK_PROTOTYPE, N_("no description yet") }, \
130 { "no-prototype", -MASK_PROTOTYPE, N_("no description yet") }, \
131 { "no-traceback", 0, N_("no description yet") }, \
132 { "eabi", MASK_EABI, N_("Use EABI") }, \
133 { "no-eabi", -MASK_EABI, N_("Don't use EABI") }, \
134 { "bit-word", -MASK_NO_BITFIELD_WORD, "" }, \
135 { "no-bit-word", MASK_NO_BITFIELD_WORD, \
136 N_("Do not allow bit-fields to cross word boundaries") }, \
137 { "regnames", MASK_REGNAMES, \
138 N_("Use alternate register names") }, \
139 { "no-regnames", -MASK_REGNAMES, \
140 N_("Don't use alternate register names") }, \
141 { "sdata", 0, N_("no description yet") }, \
142 { "no-sdata", 0, N_("no description yet") }, \
144 N_("Link with libsim.a, libc.a and sim-crt0.o") }, \
146 N_("Link with libads.a, libc.a and crt0.o") }, \
147 { "yellowknife", 0, \
148 N_("Link with libyk.a, libc.a and crt0.o") }, \
150 N_("Link with libmvme.a, libc.a and crt0.o") }, \
152 N_("Set the PPC_EMB bit in the ELF flags header") }, \
153 { "windiss", 0, N_("Use the WindISS simulator") }, \
154 { "shlib", 0, N_("no description yet") }, \
155 EXTRA_SUBTARGET_SWITCHES \
156 { "newlib", 0, N_("no description yet") },
158 /* This is meant to be redefined in the host dependent files. */
159 #define EXTRA_SUBTARGET_SWITCHES
161 /* Sometimes certain combinations of command options do not make sense
162 on a particular target machine. You can define a macro
163 `OVERRIDE_OPTIONS' to take account of this. This macro, if
164 defined, is executed once just after all the command options have
167 The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
170 #define SUBTARGET_OVERRIDE_OPTIONS \
173 g_switch_value = SDATA_DEFAULT_SIZE; \
175 if (!strcmp (rs6000_abi_name, "sysv")) \
176 rs6000_current_abi = ABI_V4; \
177 else if (!strcmp (rs6000_abi_name, "sysv-noeabi")) \
179 rs6000_current_abi = ABI_V4; \
180 target_flags &= ~ MASK_EABI; \
182 else if (!strcmp (rs6000_abi_name, "sysv-eabi") \
183 || !strcmp (rs6000_abi_name, "eabi")) \
185 rs6000_current_abi = ABI_V4; \
186 target_flags |= MASK_EABI; \
188 else if (!strcmp (rs6000_abi_name, "aix")) \
190 rs6000_current_abi = ABI_AIX_NODESC; \
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")) \
198 rs6000_current_abi = ABI_V4; \
199 else if (!strcmp (rs6000_abi_name, "gnu")) \
200 rs6000_current_abi = ABI_V4; \
201 else if (!strcmp (rs6000_abi_name, "netbsd")) \
202 rs6000_current_abi = ABI_V4; \
203 else if (!strcmp (rs6000_abi_name, "i960-old")) \
205 rs6000_current_abi = ABI_V4; \
206 target_flags |= (MASK_LITTLE_ENDIAN | MASK_EABI \
207 | MASK_NO_BITFIELD_WORD); \
208 target_flags &= ~MASK_STRICT_ALIGN; \
212 rs6000_current_abi = ABI_V4; \
213 error ("bad value for -mcall-%s", rs6000_abi_name); \
216 if (rs6000_sdata_name) \
218 if (!strcmp (rs6000_sdata_name, "none")) \
219 rs6000_sdata = SDATA_NONE; \
220 else if (!strcmp (rs6000_sdata_name, "data")) \
221 rs6000_sdata = SDATA_DATA; \
222 else if (!strcmp (rs6000_sdata_name, "default")) \
223 rs6000_sdata = (TARGET_EABI) ? SDATA_EABI : SDATA_SYSV; \
224 else if (!strcmp (rs6000_sdata_name, "sysv")) \
225 rs6000_sdata = SDATA_SYSV; \
226 else if (!strcmp (rs6000_sdata_name, "eabi")) \
227 rs6000_sdata = SDATA_EABI; \
229 error ("bad value for -msdata=%s", rs6000_sdata_name); \
231 else if (DEFAULT_ABI == ABI_V4) \
233 rs6000_sdata = SDATA_DATA; \
234 rs6000_sdata_name = "data"; \
238 rs6000_sdata = SDATA_NONE; \
239 rs6000_sdata_name = "none"; \
242 if (TARGET_RELOCATABLE && \
243 (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV)) \
245 rs6000_sdata = SDATA_DATA; \
246 error ("-mrelocatable and -msdata=%s are incompatible", \
247 rs6000_sdata_name); \
250 else if (flag_pic && \
251 (rs6000_sdata == SDATA_EABI || 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) \
261 rs6000_sdata = SDATA_NONE; \
262 error ("-msdata=%s and -mcall-%s are incompatible", \
263 rs6000_sdata_name, rs6000_abi_name); \
266 targetm.have_srodata_section = rs6000_sdata == SDATA_EABI; \
268 if (TARGET_RELOCATABLE && !TARGET_MINIMAL_TOC) \
270 target_flags |= MASK_MINIMAL_TOC; \
271 error ("-mrelocatable and -mno-minimal-toc are incompatible"); \
274 if (TARGET_RELOCATABLE && rs6000_current_abi == ABI_AIX) \
276 target_flags &= ~MASK_RELOCATABLE; \
277 error ("-mrelocatable and -mcall-%s are incompatible", \
281 if (flag_pic > 1 && rs6000_current_abi == ABI_AIX) \
284 error ("-fPIC and -mcall-%s are incompatible", \
288 if (rs6000_current_abi == ABI_AIX && TARGET_LITTLE_ENDIAN) \
290 target_flags &= ~MASK_LITTLE_ENDIAN; \
291 error ("-mcall-aixdesc must be big endian"); \
294 /* Treat -fPIC the same as -mrelocatable. */ \
296 target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC; \
298 else if (TARGET_RELOCATABLE) \
304 /* Override rs6000.h definition. */
305 #undef TARGET_DEFAULT
306 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
308 /* Override rs6000.h definition. */
309 #undef PROCESSOR_DEFAULT
310 #define PROCESSOR_DEFAULT PROCESSOR_PPC750
313 /* System V.4 uses register 13 as a pointer to the small data area,
314 so it is not available to the normal user. */
317 /* Size of the V.4 varargs area if needed. */
318 /* Override rs6000.h definition. */
319 #undef RS6000_VARARGS_AREA
320 #define RS6000_VARARGS_AREA ((cfun->machine->sysv_varargs_p) ? RS6000_VARARGS_SIZE : 0)
322 /* Override default big endianism definitions in rs6000.h. */
323 #undef BYTES_BIG_ENDIAN
324 #undef WORDS_BIG_ENDIAN
325 #define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN)
326 #define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN)
328 /* Define this to set the endianness to use in libgcc2.c, which can
329 not depend on target_flags. */
330 #if !defined(_LITTLE_ENDIAN) && !defined(__sun__)
331 #define LIBGCC2_WORDS_BIG_ENDIAN 1
333 #define LIBGCC2_WORDS_BIG_ENDIAN 0
336 /* Define cutoff for using external functions to save floating point.
337 Currently on V.4, always use inline stores. */
338 #define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64)
340 /* Put jump tables in read-only memory, rather than in .text. */
341 #define JUMP_TABLES_IN_TEXT_SECTION 0
343 /* Prefix and suffix to use to saving floating point. */
344 #define SAVE_FP_PREFIX "_savefpr_"
345 #define SAVE_FP_SUFFIX "_l"
347 /* Prefix and suffix to use to restoring floating point. */
348 #define RESTORE_FP_PREFIX "_restfpr_"
349 #define RESTORE_FP_SUFFIX "_l"
351 /* Type used for ptrdiff_t, as a string used in a declaration. */
352 #define PTRDIFF_TYPE "int"
354 /* Type used for wchar_t, as a string used in a declaration. */
355 /* Override svr4.h definition. */
357 #define WCHAR_TYPE "long int"
359 /* Width of wchar_t in bits. */
360 /* Override svr4.h definition. */
361 #undef WCHAR_TYPE_SIZE
362 #define WCHAR_TYPE_SIZE 32
364 /* Make int foo : 8 not cause structures to be aligned to an int boundary. */
365 /* Override elfos.h definition. */
366 #undef PCC_BITFIELD_TYPE_MATTERS
367 #define PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE)
369 #undef BITFIELD_NBYTES_LIMITED
370 #define BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD)
372 /* Define this macro to be the value 1 if instructions will fail to
373 work if given data not on the nominal alignment. If instructions
374 will merely go slower in that case, define this macro as 0. */
375 #undef STRICT_ALIGNMENT
376 #define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN)
378 /* Alignment in bits of the stack boundary. Note, in order to allow building
379 one set of libraries with -mno-eabi instead of eabi libraries and non-eabi
380 versions, just use 64 as the stack boundary. */
381 #undef STACK_BOUNDARY
382 #define STACK_BOUNDARY (TARGET_ALTIVEC_ABI ? 128 : 64)
384 /* Real stack boundary as mandated by the appropriate ABI. */
385 #define ABI_STACK_BOUNDARY ((TARGET_EABI && !TARGET_ALTIVEC_ABI) ? 64 : 128)
387 /* An expression for the alignment of a structure field FIELD if the
388 alignment computed in the usual way is COMPUTED. */
389 #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
390 ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \
393 /* Define this macro as an expression for the alignment of a type
394 (given by TYPE as a tree node) if the alignment computed in the
395 usual way is COMPUTED and the alignment explicitly specified was
397 #define ROUND_TYPE_ALIGN(TYPE, COMPUTED, SPECIFIED) \
398 ((TARGET_ALTIVEC && TREE_CODE (TYPE) == VECTOR_TYPE) \
399 ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128) \
400 : MAX (COMPUTED, SPECIFIED))
402 #undef BIGGEST_FIELD_ALIGNMENT
404 /* Use ELF style section commands. */
406 #define TEXT_SECTION_ASM_OP "\t.section\t\".text\""
408 #define DATA_SECTION_ASM_OP "\t.section\t\".data\""
410 #define BSS_SECTION_ASM_OP "\t.section\t\".bss\""
412 /* Override elfos.h definition. */
413 #undef INIT_SECTION_ASM_OP
414 #define INIT_SECTION_ASM_OP "\t.section\t\".init\",\"ax\""
416 /* Override elfos.h definition. */
417 #undef FINI_SECTION_ASM_OP
418 #define FINI_SECTION_ASM_OP "\t.section\t\".fini\",\"ax\""
420 #define TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\""
422 /* Put PC relative got entries in .got2. */
423 #define MINIMAL_TOC_SECTION_ASM_OP \
424 ((TARGET_RELOCATABLE || flag_pic) ? "\t.section\t\".got2\",\"aw\"" : "\t.section\t\".got1\",\"aw\"")
426 #define SDATA_SECTION_ASM_OP "\t.section\t\".sdata\",\"aw\""
427 #define SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\""
428 #define SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits"
430 /* Besides the usual ELF sections, we need a toc section. */
431 /* Override elfos.h definition. */
432 #undef EXTRA_SECTIONS
433 #define EXTRA_SECTIONS in_toc, in_sdata, in_sdata2, in_sbss, in_init, in_fini
435 /* Override elfos.h definition. */
436 #undef EXTRA_SECTION_FUNCTIONS
437 #define EXTRA_SECTION_FUNCTIONS \
438 TOC_SECTION_FUNCTION \
439 SDATA_SECTION_FUNCTION \
440 SDATA2_SECTION_FUNCTION \
441 SBSS_SECTION_FUNCTION \
442 INIT_SECTION_FUNCTION \
443 FINI_SECTION_FUNCTION
445 #define TOC_SECTION_FUNCTION \
449 if (in_section != in_toc) \
451 in_section = in_toc; \
452 if (DEFAULT_ABI == ABI_AIX \
453 && TARGET_MINIMAL_TOC \
454 && !TARGET_RELOCATABLE) \
456 if (! toc_initialized) \
458 toc_initialized = 1; \
459 fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \
460 (*targetm.asm_out.internal_label) (asm_out_file, "LCTOC", 0); \
461 fprintf (asm_out_file, "\t.tc "); \
462 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1[TC],"); \
463 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
464 fprintf (asm_out_file, "\n"); \
466 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
467 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
468 fprintf (asm_out_file, " = .+32768\n"); \
471 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
473 else if (DEFAULT_ABI == ABI_AIX && !TARGET_RELOCATABLE) \
474 fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP); \
477 fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
478 if (! toc_initialized) \
480 ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
481 fprintf (asm_out_file, " = .+32768\n"); \
482 toc_initialized = 1; \
488 extern int in_toc_section PARAMS ((void)); \
489 int in_toc_section () \
491 return in_section == in_toc; \
494 #define SDATA_SECTION_FUNCTION \
498 if (in_section != in_sdata) \
500 in_section = in_sdata; \
501 fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP); \
505 #define SDATA2_SECTION_FUNCTION \
509 if (in_section != in_sdata2) \
511 in_section = in_sdata2; \
512 fprintf (asm_out_file, "%s\n", SDATA2_SECTION_ASM_OP); \
516 #define SBSS_SECTION_FUNCTION \
520 if (in_section != in_sbss) \
522 in_section = in_sbss; \
523 fprintf (asm_out_file, "%s\n", SBSS_SECTION_ASM_OP); \
527 #define INIT_SECTION_FUNCTION \
531 if (in_section != in_init) \
533 in_section = in_init; \
534 fprintf (asm_out_file, "%s\n", INIT_SECTION_ASM_OP); \
538 #define FINI_SECTION_FUNCTION \
542 if (in_section != in_fini) \
544 in_section = in_fini; \
545 fprintf (asm_out_file, "%s\n", FINI_SECTION_ASM_OP); \
549 /* Override default elf definitions. */
550 #undef TARGET_ASM_SELECT_RTX_SECTION
551 #define TARGET_ASM_SELECT_RTX_SECTION rs6000_elf_select_rtx_section
552 #undef TARGET_ASM_SELECT_SECTION
553 #define TARGET_ASM_SELECT_SECTION rs6000_elf_select_section
554 #define TARGET_ASM_UNIQUE_SECTION rs6000_elf_unique_section
556 /* Return nonzero if this entry is to be written into the constant pool
557 in a special way. We do so if this is a SYMBOL_REF, LABEL_REF or a CONST
558 containing one of them. If -mfp-in-toc (the default), we also do
559 this for floating-point constants. We actually can only do this
560 if the FP formats of the target and host machines are the same, but
561 we can't check that since not every file that uses
562 GO_IF_LEGITIMATE_ADDRESS_P includes real.h.
564 Unlike AIX, we don't key off of -mminimal-toc, but instead do not
565 allow floating point constants in the TOC if -mrelocatable. */
567 #undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
568 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \
570 && (GET_CODE (X) == SYMBOL_REF \
571 || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \
572 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \
573 || GET_CODE (X) == LABEL_REF \
574 || (GET_CODE (X) == CONST_INT \
575 && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \
576 || (!TARGET_NO_FP_IN_TOC \
577 && !TARGET_RELOCATABLE \
578 && GET_CODE (X) == CONST_DOUBLE \
579 && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
580 && BITS_PER_WORD == HOST_BITS_PER_INT)))
582 /* These macros generate the special .type and .size directives which
583 are used to set the corresponding fields of the linker symbol table
584 entries in an ELF object file under SVR4. These macros also output
585 the starting labels for the relevant functions/objects. */
587 /* Write the extra assembler code needed to declare a function properly.
588 Some svr4 assemblers need to also have something extra said about the
589 function's return value. We allow for that here. */
591 extern int rs6000_pic_labelno
;
593 /* Override elfos.h definition. */
594 #undef ASM_DECLARE_FUNCTION_NAME
595 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
597 const char *const init_ptr = (TARGET_64BIT) ? ".quad" : ".long"; \
599 if (TARGET_RELOCATABLE \
600 && (get_pool_size () != 0 || current_function_profile) \
605 (*targetm.asm_out.internal_label) (FILE, "LCL", rs6000_pic_labelno); \
607 ASM_GENERATE_INTERNAL_LABEL (buf, "LCTOC", 1); \
608 fprintf (FILE, "\t%s ", init_ptr); \
609 assemble_name (FILE, buf); \
611 ASM_GENERATE_INTERNAL_LABEL (buf, "LCF", rs6000_pic_labelno); \
612 assemble_name (FILE, buf); \
616 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \
617 ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
619 if (DEFAULT_ABI == ABI_AIX) \
621 const char *desc_name, *orig_name; \
623 orig_name = (*targetm.strip_name_encoding) (NAME); \
624 desc_name = orig_name; \
625 while (*desc_name == '.') \
628 if (TREE_PUBLIC (DECL)) \
629 fprintf (FILE, "\t.globl %s\n", desc_name); \
631 fprintf (FILE, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
632 fprintf (FILE, "%s:\n", desc_name); \
633 fprintf (FILE, "\t%s %s\n", init_ptr, orig_name); \
634 fprintf (FILE, "\t%s _GLOBAL_OFFSET_TABLE_\n", init_ptr); \
635 if (DEFAULT_ABI == ABI_AIX) \
636 fprintf (FILE, "\t%s 0\n", init_ptr); \
637 fprintf (FILE, "\t.previous\n"); \
639 ASM_OUTPUT_LABEL (FILE, NAME); \
642 /* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore
643 flag. The LOCAL_LABEL_PREFIX variable is used by dbxelf.h. */
645 #define LOCAL_LABEL_PREFIX "."
646 #define USER_LABEL_PREFIX ""
648 /* svr4.h overrides (*targetm.asm_out.internal_label). */
650 #define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX) \
651 asm_fprintf (FILE, "%L%s", PREFIX)
653 /* Globalizing directive for a label. */
654 #define GLOBAL_ASM_OP "\t.globl "
656 /* This says how to output assembler code to declare an
657 uninitialized internal linkage data object. Under SVR4,
658 the linker seems to want the alignment of data objects
659 to depend on their types. We do exactly that here. */
661 #define LOCAL_ASM_OP "\t.local\t"
663 #define LCOMM_ASM_OP "\t.lcomm\t"
665 /* Override elfos.h definition. */
666 #undef ASM_OUTPUT_ALIGNED_LOCAL
667 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
669 if (rs6000_sdata != SDATA_NONE && (SIZE) > 0 \
670 && (SIZE) <= g_switch_value) \
673 ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT)); \
674 ASM_OUTPUT_LABEL (FILE, NAME); \
675 ASM_OUTPUT_SKIP (FILE, SIZE); \
676 if (!flag_inhibit_size_directive && (SIZE) > 0) \
677 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \
681 fprintf (FILE, "%s", LCOMM_ASM_OP); \
682 assemble_name ((FILE), (NAME)); \
683 fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
687 /* Describe how to emit uninitialized external linkage items. */
688 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
690 (*targetm.asm_out.globalize_label) (FILE, NAME); \
691 ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN); \
694 /* This is how to output code to push a register on the stack.
695 It need not be very fast code.
697 On the rs6000, we must keep the backchain up to date. In order
698 to simplify things, always allocate 16 bytes for a push (System V
699 wants to keep stack aligned to a 16 byte boundary). */
701 #define ASM_OUTPUT_REG_PUSH(FILE, REGNO) \
703 if (DEFAULT_ABI == ABI_V4) \
705 "\t{stu|stwu} %s,-16(%s)\n\t{st|stw} %s,12(%s)\n", \
706 reg_names[1], reg_names[1], reg_names[REGNO], \
710 /* This is how to output an insn to pop a register from the stack.
711 It need not be very fast code. */
713 #define ASM_OUTPUT_REG_POP(FILE, REGNO) \
715 if (DEFAULT_ABI == ABI_V4) \
717 "\t{l|lwz} %s,12(%s)\n\t{ai|addic} %s,%s,16\n", \
718 reg_names[REGNO], reg_names[1], reg_names[1], \
722 /* Switch Recognition by gcc.c. Add -G xx support. */
724 /* Override svr4.h definition. */
725 #undef SWITCH_TAKES_ARG
726 #define SWITCH_TAKES_ARG(CHAR) \
727 ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o' \
728 || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u' \
729 || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x' \
730 || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V' \
731 || (CHAR) == 'B' || (CHAR) == 'b' || (CHAR) == 'G')
734 /* Override elfos.h definition. */
735 #undef ASM_FILE_START
736 #define ASM_FILE_START(FILE) \
738 output_file_directive ((FILE), main_input_filename); \
739 rs6000_file_start (FILE, TARGET_CPU_DEFAULT); \
743 extern int fixuplabelno
;
745 /* Handle constructors specially for -mrelocatable. */
746 #define TARGET_ASM_CONSTRUCTOR rs6000_elf_asm_out_constructor
747 #define TARGET_ASM_DESTRUCTOR rs6000_elf_asm_out_destructor
749 /* This is the end of what might become sysv4.h. */
751 /* Use DWARF 2 debugging information by default. */
752 #undef PREFERRED_DEBUGGING_TYPE
753 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
755 /* Historically we have also supported stabs debugging. */
756 #define DBX_DEBUGGING_INFO 1
758 #define TARGET_ENCODE_SECTION_INFO rs6000_elf_encode_section_info
759 #define TARGET_STRIP_NAME_ENCODING rs6000_elf_strip_name_encoding
760 #define TARGET_IN_SMALL_DATA_P rs6000_elf_in_small_data_p
761 #define TARGET_SECTION_TYPE_FLAGS rs6000_elf_section_type_flags
763 /* The ELF version doesn't encode [DS] or whatever at the end of symbols. */
765 #define RS6000_OUTPUT_BASENAME(FILE, NAME) \
766 assemble_name (FILE, NAME)
768 /* This is how to output a reference to a user-level label named NAME.
769 `assemble_name' uses this. */
771 /* Override elfos.h definition. */
772 #undef ASM_OUTPUT_LABELREF
773 #define ASM_OUTPUT_LABELREF(FILE,NAME) \
775 const char *_name = NAME; \
780 fprintf (FILE, "%s", _name + 1); \
782 asm_fprintf (FILE, "%U%s", _name); \
785 /* But, to make this work, we have to output the stabs for the function
788 #define DBX_FUNCTION_FIRST
790 /* This is the end of what might become sysv4dbx.h. */
792 #ifndef TARGET_VERSION
793 #define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)");
796 #ifndef TARGET_OS_CPP_BUILTINS
797 #define TARGET_OS_CPP_BUILTINS() \
800 builtin_define_std ("PPC"); \
801 builtin_define_std ("unix"); \
802 builtin_define ("__svr4__"); \
803 builtin_assert ("system=unix"); \
804 builtin_assert ("system=svr4"); \
805 builtin_assert ("cpu=powerpc"); \
806 builtin_assert ("machine=powerpc"); \
811 /* Pass various options to the assembler. */
812 /* Override svr4.h definition. */
814 #define ASM_SPEC "%(asm_cpu) \
815 %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
816 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
817 %{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \
818 %{memb|msdata|msdata=eabi: -memb} \
819 %{mlittle|mlittle-endian:-mlittle; \
820 mbig|mbig-endian :-mbig; \
826 mcall-i960-old :-mlittle}"
828 #define CC1_ENDIAN_BIG_SPEC ""
830 #define CC1_ENDIAN_LITTLE_SPEC "\
831 %{!mstrict-align: %{!mno-strict-align: \
837 #define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)"
839 /* Pass -G xxx to the compiler and set correct endian mode. */
840 #define CC1_SPEC "%{G*} \
841 %{mlittle|mlittle-endian: %(cc1_endian_little); \
842 mbig |mbig-endian : %(cc1_endian_big); \
847 mcall-gnu : -mbig %(cc1_endian_big); \
848 mcall-i960-old : -mlittle %(cc1_endian_little); \
849 : %(cc1_endian_default)} \
850 %{mno-sdata: -msdata=none } \
851 %{meabi: %{!mcall-*: -mcall-sysv }} \
852 %{!meabi: %{!mno-eabi: \
853 %{mrelocatable: -meabi } \
854 %{mcall-freebsd: -mno-eabi } \
855 %{mcall-i960-old: -meabi } \
856 %{mcall-linux: -mno-eabi } \
857 %{mcall-gnu: -mno-eabi } \
858 %{mcall-netbsd: -mno-eabi }}} \
859 %{msdata: -msdata=default} \
860 %{mno-sdata: -msdata=none} \
863 /* Don't put -Y P,<path> for cross compilers. */
864 #ifndef CROSS_COMPILE
865 #define LINK_PATH_SPEC "\
867 %{!nostdlib: %{!YP,*: \
869 %{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
870 %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
871 %{!R*: %{!L*: -R /usr/ucblib}} \
873 %{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
874 %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}}"
877 #define LINK_PATH_SPEC ""
880 /* Default starting address if specified. */
881 #define LINK_START_SPEC "\
882 %{mads : %(link_start_ads) ; \
883 myellowknife : %(link_start_yellowknife) ; \
884 mmvme : %(link_start_mvme) ; \
885 msim : %(link_start_sim) ; \
886 mwindiss : %(link_start_windiss) ; \
887 mcall-freebsd: %(link_start_freebsd) ; \
888 mcall-linux : %(link_start_linux) ; \
889 mcall-gnu : %(link_start_gnu) ; \
890 mcall-netbsd : %(link_start_netbsd) ; \
891 : %(link_start_default) }"
893 #define LINK_START_DEFAULT_SPEC ""
895 /* Override svr4.h definition. */
898 %{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \
902 %{!Wl,-T*: %{!T*: %(link_start) }} \
906 /* For now, turn off shared libraries by default. */
907 #ifndef SHARED_LIB_SUPPORT
908 #define NO_SHARED_LIB_SUPPORT
911 #ifndef NO_SHARED_LIB_SUPPORT
912 /* Shared libraries are default. */
913 #define LINK_SHLIB_SPEC "\
914 %{!static: %(link_path) %{!R*:%{L*:-R %*}}} \
916 %{static:-dn -Bstatic} \
917 %{shared:-G -dy -z text} \
918 %{symbolic:-Bsymbolic -G -dy -z text}"
921 /* Shared libraries are not default. */
922 #define LINK_SHLIB_SPEC "\
923 %{mshlib: %(link_path) } \
924 %{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \
926 %{shared:-G -dy -z text %(link_path) } \
927 %{symbolic:-Bsymbolic -G -dy -z text %(link_path) }"
930 /* Override the default target of the linker. */
931 #define LINK_TARGET_SPEC "\
932 %{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \
933 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
934 %{mcall-i960-old: --oformat elf32-powerpcle} \
937 /* Any specific OS flags. */
938 #define LINK_OS_SPEC "\
939 %{mads : %(link_os_ads) ; \
940 myellowknife : %(link_os_yellowknife) ; \
941 mmvme : %(link_os_mvme) ; \
942 msim : %(link_os_sim) ; \
943 mwindiss : %(link_os_windiss) ; \
944 mcall-freebsd: %(link_os_freebsd) ; \
945 mcall-linux : %(link_os_linux) ; \
946 mcall-gnu : %(link_os_gnu) ; \
947 mcall-netbsd : %(link_os_netbsd) ; \
948 : %(link_os_default) }"
950 #define LINK_OS_DEFAULT_SPEC ""
952 #define CPP_SYSV_SPEC \
953 "%{mrelocatable*: -D_RELOCATABLE} \
954 %{fpic: -D__PIC__=1 -D__pic__=1} \
955 %{!fpic: %{fPIC: -D__PIC__=2 -D__pic__=2}}"
957 /* Override rs6000.h definition. */
959 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} %(cpp_sysv) \
960 %{mads : %(cpp_os_ads) ; \
961 myellowknife : %(cpp_os_yellowknife) ; \
962 mmvme : %(cpp_os_mvme) ; \
963 msim : %(cpp_os_sim) ; \
964 mwindiss : %(cpp_os_windiss) ; \
965 mcall-freebsd: %(cpp_os_freebsd) ; \
966 mcall-linux : %(cpp_os_linux) ; \
967 mcall-gnu : %(cpp_os_gnu) ; \
968 mcall-netbsd : %(cpp_os_netbsd) ; \
969 : %(cpp_os_default) }"
971 #define CPP_OS_DEFAULT_SPEC ""
973 /* Override svr4.h definition. */
974 #undef STARTFILE_SPEC
975 #define STARTFILE_SPEC "\
976 %{mads : %(startfile_ads) ; \
977 myellowknife : %(startfile_yellowknife) ; \
978 mmvme : %(startfile_mvme) ; \
979 msim : %(startfile_sim) ; \
980 mwindiss : %(startfile_windiss) ; \
981 mcall-freebsd: %(startfile_freebsd) ; \
982 mcall-linux : %(startfile_linux) ; \
983 mcall-gnu : %(startfile_gnu) ; \
984 mcall-netbsd : %(startfile_netbsd) ; \
985 : %(startfile_default) }"
987 #define STARTFILE_DEFAULT_SPEC ""
989 /* Override svr4.h definition. */
992 %{mads : %(lib_ads) ; \
993 myellowknife : %(lib_yellowknife) ; \
994 mmvme : %(lib_mvme) ; \
995 msim : %(lib_sim) ; \
996 mwindiss : %(lib_windiss) ; \
997 mcall-freebsd: %(lib_freebsd) ; \
998 mcall-linux : %(lib_linux) ; \
999 mcall-gnu : %(lib_gnu) ; \
1000 mcall-netbsd : %(lib_netbsd) ; \
1003 #define LIB_DEFAULT_SPEC ""
1005 /* Override svr4.h definition. */
1007 #define ENDFILE_SPEC "\
1008 %{mads : crtsavres.o%s %(endfile_ads) ; \
1009 myellowknife : crtsavres.o%s %(endfile_yellowknife) ; \
1010 mmvme : crtsavres.o%s %(endfile_mvme) ; \
1011 msim : crtsavres.o%s %(endfile_sim) ; \
1012 mwindiss : %(endfile_windiss) ; \
1013 mcall-freebsd: crtsavres.o%s %(endfile_freebsd) ; \
1014 mcall-linux : crtsavres.o%s %(endfile_linux) ; \
1015 mcall-gnu : crtsavres.o%s %(endfile_gnu) ; \
1016 mcall-netbsd : crtsavres.o%s %(endfile_netbsd) ; \
1017 : %(crtsavres_default) %(endfile_default) }"
1019 #define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s"
1021 #define ENDFILE_DEFAULT_SPEC ""
1023 /* Motorola ADS support. */
1024 #define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
1026 #define STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1028 #define ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s"
1030 #define LINK_START_ADS_SPEC "-T ads.ld%s"
1032 #define LINK_OS_ADS_SPEC ""
1034 #define CPP_OS_ADS_SPEC ""
1036 /* Motorola Yellowknife support. */
1037 #define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group"
1039 #define STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1041 #define ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s"
1043 #define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s"
1045 #define LINK_OS_YELLOWKNIFE_SPEC ""
1047 #define CPP_OS_YELLOWKNIFE_SPEC ""
1049 /* Motorola MVME support. */
1050 #define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group"
1052 #define STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1054 #define ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s"
1056 #define LINK_START_MVME_SPEC "-Ttext 0x40000"
1058 #define LINK_OS_MVME_SPEC ""
1060 #define CPP_OS_MVME_SPEC ""
1062 /* PowerPC simulator based on netbsd system calls support. */
1063 #define LIB_SIM_SPEC "--start-group -lsim -lc --end-group"
1065 #define STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s"
1067 #define ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s"
1069 #define LINK_START_SIM_SPEC ""
1071 #define LINK_OS_SIM_SPEC "-m elf32ppcsim"
1073 #define CPP_OS_SIM_SPEC ""
1075 /* FreeBSD support. */
1077 #define CPP_OS_FREEBSD_SPEC "\
1078 -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \
1079 -Acpu=powerpc -Amachine=powerpc"
1081 #define STARTFILE_FREEBSD_SPEC FBSD_STARTFILE_SPEC
1082 #define ENDFILE_FREEBSD_SPEC FBSD_ENDFILE_SPEC
1083 #define LIB_FREEBSD_SPEC FBSD_LIB_SPEC
1084 #define LINK_START_FREEBSD_SPEC ""
1086 #define LINK_OS_FREEBSD_SPEC "\
1087 %{symbolic:-Bsymbolic}"
1089 /* GNU/Linux support. */
1090 #ifdef USE_GNULIBC_1
1091 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1094 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1095 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1096 %{profile:-lc_p} %{!profile:-lc}}}"
1099 #ifdef USE_GNULIBC_1
1100 #define STARTFILE_LINUX_SPEC "\
1101 %{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
1102 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1103 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1105 #define STARTFILE_LINUX_SPEC "\
1106 %{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
1107 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1108 %{static:crtbeginT.o%s} \
1109 %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}"
1112 #define ENDFILE_LINUX_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1113 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1115 #define LINK_START_LINUX_SPEC ""
1117 #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1118 %{rdynamic:-export-dynamic} \
1119 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1121 #if !defined(USE_GNULIBC_1) && defined(HAVE_LD_EH_FRAME_HDR)
1122 # define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
1125 #ifdef USE_GNULIBC_1
1126 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1129 %{!std=*:-Dunix -D__unix -Dlinux -D__linux} \
1130 %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \
1131 -Asystem=unix -Asystem=posix"
1133 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1136 %{!std=*:-Dunix -D__unix -Dlinux -D__linux} \
1137 %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}} \
1138 -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1141 /* GNU/Hurd support. */
1142 #define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \
1143 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1144 %{profile:-lc_p} %{!profile:-lc}}}"
1146 #define STARTFILE_GNU_SPEC "\
1147 %{!shared: %{!static: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}} \
1148 %{static: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
1149 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1150 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1152 #define ENDFILE_GNU_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1153 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1155 #define LINK_START_GNU_SPEC ""
1157 #define LINK_OS_GNU_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1158 %{rdynamic:-export-dynamic} \
1159 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1161 #define CPP_OS_GNU_SPEC "-D__unix__ -D__gnu_hurd__ -D__GNU__ \
1163 %{!ansi: -Dunix -D__unix}} \
1164 -Asystem=gnu -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1166 /* NetBSD support. */
1167 #define LIB_NETBSD_SPEC "\
1168 %{profile:-lgmon -lc_p} %{!profile:-lc}"
1170 #define STARTFILE_NETBSD_SPEC "\
1171 ncrti.o%s crt0.o%s \
1172 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1174 #define ENDFILE_NETBSD_SPEC "\
1175 %{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1178 #define LINK_START_NETBSD_SPEC "\
1181 #define LINK_OS_NETBSD_SPEC "\
1182 %{!shared: %{!static: \
1183 %{rdynamic:-export-dynamic} \
1184 %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}}"
1186 #define CPP_OS_NETBSD_SPEC "\
1187 -D__powerpc__ -D__NetBSD__ -D__ELF__ -D__KPRINTF_ATTRIBUTE__"
1189 /* WindISS support. */
1191 #define LIB_WINDISS_SPEC "--start-group -li -lcfp -lwindiss -lram -limpl -limpfp --end-group"
1193 #define CPP_OS_WINDISS_SPEC "\
1197 %{!msoft-float: -D__hardfp} \
1200 #define STARTFILE_WINDISS_SPEC "crt0.o%s crtbegin.o%s"
1202 #define ENDFILE_WINDISS_SPEC "crtend.o%s"
1204 #define LINK_START_WINDISS_SPEC ""
1206 #define LINK_OS_WINDISS_SPEC ""
1208 /* Define any extra SPECS that the compiler needs to generate. */
1209 /* Override rs6000.h definition. */
1210 #undef SUBTARGET_EXTRA_SPECS
1211 #define SUBTARGET_EXTRA_SPECS \
1212 { "cpp_sysv", CPP_SYSV_SPEC }, \
1213 { "crtsavres_default", CRTSAVRES_DEFAULT_SPEC }, \
1214 { "lib_ads", LIB_ADS_SPEC }, \
1215 { "lib_yellowknife", LIB_YELLOWKNIFE_SPEC }, \
1216 { "lib_mvme", LIB_MVME_SPEC }, \
1217 { "lib_sim", LIB_SIM_SPEC }, \
1218 { "lib_freebsd", LIB_FREEBSD_SPEC }, \
1219 { "lib_gnu", LIB_GNU_SPEC }, \
1220 { "lib_linux", LIB_LINUX_SPEC }, \
1221 { "lib_netbsd", LIB_NETBSD_SPEC }, \
1222 { "lib_windiss", LIB_WINDISS_SPEC }, \
1223 { "lib_default", LIB_DEFAULT_SPEC }, \
1224 { "startfile_ads", STARTFILE_ADS_SPEC }, \
1225 { "startfile_yellowknife", STARTFILE_YELLOWKNIFE_SPEC }, \
1226 { "startfile_mvme", STARTFILE_MVME_SPEC }, \
1227 { "startfile_sim", STARTFILE_SIM_SPEC }, \
1228 { "startfile_freebsd", STARTFILE_FREEBSD_SPEC }, \
1229 { "startfile_gnu", STARTFILE_GNU_SPEC }, \
1230 { "startfile_linux", STARTFILE_LINUX_SPEC }, \
1231 { "startfile_netbsd", STARTFILE_NETBSD_SPEC }, \
1232 { "startfile_windiss", STARTFILE_WINDISS_SPEC }, \
1233 { "startfile_default", STARTFILE_DEFAULT_SPEC }, \
1234 { "endfile_ads", ENDFILE_ADS_SPEC }, \
1235 { "endfile_yellowknife", ENDFILE_YELLOWKNIFE_SPEC }, \
1236 { "endfile_mvme", ENDFILE_MVME_SPEC }, \
1237 { "endfile_sim", ENDFILE_SIM_SPEC }, \
1238 { "endfile_freebsd", ENDFILE_FREEBSD_SPEC }, \
1239 { "endfile_gnu", ENDFILE_GNU_SPEC }, \
1240 { "endfile_linux", ENDFILE_LINUX_SPEC }, \
1241 { "endfile_netbsd", ENDFILE_NETBSD_SPEC }, \
1242 { "endfile_windiss", ENDFILE_WINDISS_SPEC }, \
1243 { "endfile_default", ENDFILE_DEFAULT_SPEC }, \
1244 { "link_path", LINK_PATH_SPEC }, \
1245 { "link_shlib", LINK_SHLIB_SPEC }, \
1246 { "link_target", LINK_TARGET_SPEC }, \
1247 { "link_start", LINK_START_SPEC }, \
1248 { "link_start_ads", LINK_START_ADS_SPEC }, \
1249 { "link_start_yellowknife", LINK_START_YELLOWKNIFE_SPEC }, \
1250 { "link_start_mvme", LINK_START_MVME_SPEC }, \
1251 { "link_start_sim", LINK_START_SIM_SPEC }, \
1252 { "link_start_freebsd", LINK_START_FREEBSD_SPEC }, \
1253 { "link_start_gnu", LINK_START_GNU_SPEC }, \
1254 { "link_start_linux", LINK_START_LINUX_SPEC }, \
1255 { "link_start_netbsd", LINK_START_NETBSD_SPEC }, \
1256 { "link_start_windiss", LINK_START_WINDISS_SPEC }, \
1257 { "link_start_default", LINK_START_DEFAULT_SPEC }, \
1258 { "link_os", LINK_OS_SPEC }, \
1259 { "link_os_ads", LINK_OS_ADS_SPEC }, \
1260 { "link_os_yellowknife", LINK_OS_YELLOWKNIFE_SPEC }, \
1261 { "link_os_mvme", LINK_OS_MVME_SPEC }, \
1262 { "link_os_sim", LINK_OS_SIM_SPEC }, \
1263 { "link_os_freebsd", LINK_OS_FREEBSD_SPEC }, \
1264 { "link_os_linux", LINK_OS_LINUX_SPEC }, \
1265 { "link_os_gnu", LINK_OS_GNU_SPEC }, \
1266 { "link_os_netbsd", LINK_OS_NETBSD_SPEC }, \
1267 { "link_os_windiss", LINK_OS_WINDISS_SPEC }, \
1268 { "link_os_default", LINK_OS_DEFAULT_SPEC }, \
1269 { "cc1_endian_big", CC1_ENDIAN_BIG_SPEC }, \
1270 { "cc1_endian_little", CC1_ENDIAN_LITTLE_SPEC }, \
1271 { "cc1_endian_default", CC1_ENDIAN_DEFAULT_SPEC }, \
1272 { "cpp_os_ads", CPP_OS_ADS_SPEC }, \
1273 { "cpp_os_yellowknife", CPP_OS_YELLOWKNIFE_SPEC }, \
1274 { "cpp_os_mvme", CPP_OS_MVME_SPEC }, \
1275 { "cpp_os_sim", CPP_OS_SIM_SPEC }, \
1276 { "cpp_os_freebsd", CPP_OS_FREEBSD_SPEC }, \
1277 { "cpp_os_gnu", CPP_OS_GNU_SPEC }, \
1278 { "cpp_os_linux", CPP_OS_LINUX_SPEC }, \
1279 { "cpp_os_netbsd", CPP_OS_NETBSD_SPEC }, \
1280 { "cpp_os_windiss", CPP_OS_WINDISS_SPEC }, \
1281 { "cpp_os_default", CPP_OS_DEFAULT_SPEC },
1283 /* Define this macro as a C expression for the initializer of an
1284 array of string to tell the driver program which options are
1285 defaults for this target and thus do not need to be handled
1286 specially when using `MULTILIB_OPTIONS'.
1288 Do not define this macro if `MULTILIB_OPTIONS' is not defined in
1289 the target makefile fragment or if none of the options listed in
1290 `MULTILIB_OPTIONS' are set by default. *Note Target Fragment::. */
1292 #define MULTILIB_DEFAULTS { "mbig", "mcall-sysv" }
1294 /* Define this macro if the code for function profiling should come
1295 before the function prologue. Normally, the profiling code comes
1297 #define PROFILE_BEFORE_PROLOGUE 1
1299 /* Function name to call to do profiling. */
1300 #define RS6000_MCOUNT "_mcount"
1302 /* Define this macro (to a value of 1) if you want to support the
1303 Win32 style pragmas #pragma pack(push,<n>)' and #pragma
1304 pack(pop)'. The pack(push,<n>) pragma specifies the maximum
1305 alignment (in bytes) of fields within a structure, in much the
1306 same way as the __aligned__' and __packed__' __attribute__'s
1307 do. A pack value of zero resets the behavior to the default.
1308 Successive invocations of this pragma cause the previous values to
1309 be stacked, so that invocations of #pragma pack(pop)' will return
1310 to the previous value. */
1312 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
1314 /* Define library calls for quad FP operations. These are all part of the
1315 PowerPC 32bit ABI. */
1316 #define ADDTF3_LIBCALL "_q_add"
1317 #define DIVTF3_LIBCALL "_q_div"
1318 #define EXTENDDFTF2_LIBCALL "_q_dtoq"
1319 #define EQTF2_LIBCALL "_q_feq"
1320 #define GETF2_LIBCALL "_q_fge"
1321 #define GTTF2_LIBCALL "_q_fgt"
1322 #define LETF2_LIBCALL "_q_fle"
1323 #define LTTF2_LIBCALL "_q_flt"
1324 #define NETF2_LIBCALL "_q_fne"
1325 #define FLOATSITF2_LIBCALL "_q_itoq"
1326 #define MULTF3_LIBCALL "_q_mul"
1327 #define NEGTF2_LIBCALL "_q_neg"
1328 #define TRUNCTFDF2_LIBCALL "_q_qtod"
1329 #define FIX_TRUNCTFSI2_LIBCALL "_q_qtoi"
1330 #define TRUNCTFSF2_LIBCALL "_q_qtos"
1331 #define FIXUNS_TRUNCTFSI2_LIBCALL "_q_qtou"
1332 #define SQRTTF_LIBCALL "_q_sqrt"
1333 #define EXTENDSFTF2_LIBCALL "_q_stoq"
1334 #define SUBTF3_LIBCALL "_q_sub"
1335 #define FLOATUNSSITF2_LIBCALL "_q_utoq"
1337 #define INIT_TARGET_OPTABS \
1339 if (TARGET_HARD_FLOAT) \
1341 add_optab->handlers[(int) TFmode].libfunc \
1342 = init_one_libfunc (ADDTF3_LIBCALL); \
1343 sub_optab->handlers[(int) TFmode].libfunc \
1344 = init_one_libfunc (SUBTF3_LIBCALL); \
1345 neg_optab->handlers[(int) TFmode].libfunc \
1346 = init_one_libfunc (NEGTF2_LIBCALL); \
1347 smul_optab->handlers[(int) TFmode].libfunc \
1348 = init_one_libfunc (MULTF3_LIBCALL); \
1349 sdiv_optab->handlers[(int) TFmode].libfunc \
1350 = init_one_libfunc (DIVTF3_LIBCALL); \
1351 eqtf2_libfunc = init_one_libfunc (EQTF2_LIBCALL); \
1352 netf2_libfunc = init_one_libfunc (NETF2_LIBCALL); \
1353 gttf2_libfunc = init_one_libfunc (GTTF2_LIBCALL); \
1354 getf2_libfunc = init_one_libfunc (GETF2_LIBCALL); \
1355 lttf2_libfunc = init_one_libfunc (LTTF2_LIBCALL); \
1356 letf2_libfunc = init_one_libfunc (LETF2_LIBCALL); \
1357 trunctfsf2_libfunc = init_one_libfunc (TRUNCTFSF2_LIBCALL); \
1358 trunctfdf2_libfunc = init_one_libfunc (TRUNCTFDF2_LIBCALL); \
1359 extendsftf2_libfunc = init_one_libfunc (EXTENDSFTF2_LIBCALL); \
1360 extenddftf2_libfunc = init_one_libfunc (EXTENDDFTF2_LIBCALL); \
1361 floatsitf_libfunc = init_one_libfunc (FLOATSITF2_LIBCALL); \
1362 fixtfsi_libfunc = init_one_libfunc (FIX_TRUNCTFSI2_LIBCALL); \
1363 fixunstfsi_libfunc \
1364 = init_one_libfunc (FIXUNS_TRUNCTFSI2_LIBCALL); \
1365 if (TARGET_PPC_GPOPT || TARGET_POWER2) \
1366 sqrt_optab->handlers[(int) TFmode].libfunc \
1367 = init_one_libfunc (SQRTTF_LIBCALL); \
1371 /* Select a format to encode pointers in exception handling data. CODE
1372 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
1373 true if the symbol may be affected by dynamic relocations. */
1374 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
1375 ((flag_pic || TARGET_RELOCATABLE) \
1376 ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \
1379 #define TARGET_ASM_EXCEPTION_SECTION readonly_data_section
1381 #define DOUBLE_INT_ASM_OP "\t.quad\t"
1383 /* Generate entries in .fixup for relocatable addresses. */
1384 #define RELOCATABLE_NEEDS_FIXUP