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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [config/] [sparc/] [sol2.h] - Blame information for rev 750

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1 709 jeremybenn
/* Definitions of target machine for GCC, for SPARC running Solaris 2
2
   Copyright 1992, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2004, 2005,
3
   2006, 2007, 2008, 2010, 2011 Free Software Foundation, Inc.
4
   Contributed by Ron Guilmette (rfg@netcom.com).
5
   Additional changes by David V. Henkel-Wallace (gumby@cygnus.com).
6
 
7
This file is part of GCC.
8
 
9
GCC is free software; you can redistribute it and/or modify
10
it under the terms of the GNU General Public License as published by
11
the Free Software Foundation; either version 3, or (at your option)
12
any later version.
13
 
14
GCC is distributed in the hope that it will be useful,
15
but WITHOUT ANY WARRANTY; without even the implied warranty of
16
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
GNU General Public License for more details.
18
 
19
You should have received a copy of the GNU General Public License
20
along with GCC; see the file COPYING3.  If not see
21
<http://www.gnu.org/licenses/>.  */
22
 
23
/* Solaris allows 64-bit out and global registers to be used in 32-bit mode.
24
   sparc_override_options will disable V8+ if either not generating V9 code
25
   or generating 64-bit code.  */
26
#undef TARGET_DEFAULT
27
#ifdef TARGET_64BIT_DEFAULT
28
#define TARGET_DEFAULT \
29
  (MASK_V9 + MASK_64BIT + MASK_PTR64 + MASK_STACK_BIAS + \
30
   MASK_V8PLUS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128)
31
#else
32
#define TARGET_DEFAULT \
33
  (MASK_V8PLUS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128)
34
#endif
35
 
36
/* The default code model used to be CM_MEDANY on Solaris
37
   but even Sun eventually found it to be quite wasteful
38
   and changed it to CM_MEDMID in the Studio 9 compiler.  */
39
#undef SPARC_DEFAULT_CMODEL
40
#define SPARC_DEFAULT_CMODEL CM_MEDMID
41
 
42
/* Select a format to encode pointers in exception handling data.  CODE
43
   is 0 for data, 1 for code labels, 2 for function pointers.  GLOBAL is
44
   true if the symbol may be affected by dynamic relocations.
45
 
46
   Some Solaris dynamic linkers don't handle unaligned section relative
47
   relocs properly, so force them to be aligned.  */
48
#ifndef HAVE_AS_SPARC_UA_PCREL
49
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)               \
50
  ((flag_pic || GLOBAL) ? DW_EH_PE_aligned : DW_EH_PE_absptr)
51
#endif
52
 
53
 
54
 
55
/* Supposedly the same as vanilla sparc svr4, except for the stuff below: */
56
 
57
/* This is here rather than in sparc.h because it's not known what
58
   other assemblers will accept.  */
59
 
60
#ifndef USE_GAS
61
#define AS_SPARC64_FLAG "-xarch=v9"
62
#else
63
#define AS_SPARC64_FLAG "-TSO -64 -Av9"
64
#endif
65
 
66
#undef ASM_CPU32_DEFAULT_SPEC
67
#define ASM_CPU32_DEFAULT_SPEC  ""
68
#undef ASM_CPU64_DEFAULT_SPEC
69
#define ASM_CPU64_DEFAULT_SPEC  AS_SPARC64_FLAG
70
 
71
#if TARGET_CPU_DEFAULT == TARGET_CPU_v9
72
#undef CPP_CPU64_DEFAULT_SPEC
73
#define CPP_CPU64_DEFAULT_SPEC ""
74
#undef ASM_CPU32_DEFAULT_SPEC
75
#define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plus"
76
#undef ASM_CPU_DEFAULT_SPEC
77
#define ASM_CPU_DEFAULT_SPEC ASM_CPU32_DEFAULT_SPEC
78
#endif
79
 
80
#if TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
81
#undef CPP_CPU64_DEFAULT_SPEC
82
#define CPP_CPU64_DEFAULT_SPEC ""
83
#undef ASM_CPU32_DEFAULT_SPEC
84
#define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plusa"
85
#undef ASM_CPU64_DEFAULT_SPEC
86
#define ASM_CPU64_DEFAULT_SPEC AS_SPARC64_FLAG "a"
87
#undef ASM_CPU_DEFAULT_SPEC
88
#define ASM_CPU_DEFAULT_SPEC ASM_CPU32_DEFAULT_SPEC
89
#endif
90
 
91
#if TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc3
92
#undef CPP_CPU64_DEFAULT_SPEC
93
#define CPP_CPU64_DEFAULT_SPEC ""
94
#undef ASM_CPU32_DEFAULT_SPEC
95
#define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plusb"
96
#undef ASM_CPU64_DEFAULT_SPEC
97
#define ASM_CPU64_DEFAULT_SPEC AS_SPARC64_FLAG "b"
98
#undef ASM_CPU_DEFAULT_SPEC
99
#define ASM_CPU_DEFAULT_SPEC ASM_CPU32_DEFAULT_SPEC
100
#endif
101
 
102
#if TARGET_CPU_DEFAULT == TARGET_CPU_niagara
103
#undef CPP_CPU64_DEFAULT_SPEC
104
#define CPP_CPU64_DEFAULT_SPEC ""
105
#undef ASM_CPU32_DEFAULT_SPEC
106
#define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plusb"
107
#undef ASM_CPU64_DEFAULT_SPEC
108
#define ASM_CPU64_DEFAULT_SPEC AS_SPARC64_FLAG "b"
109
#undef ASM_CPU_DEFAULT_SPEC
110
#define ASM_CPU_DEFAULT_SPEC ASM_CPU32_DEFAULT_SPEC
111
#endif
112
 
113
#if TARGET_CPU_DEFAULT == TARGET_CPU_niagara2
114
#undef CPP_CPU64_DEFAULT_SPEC
115
#define CPP_CPU64_DEFAULT_SPEC ""
116
#undef ASM_CPU32_DEFAULT_SPEC
117
#define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plusb"
118
#undef ASM_CPU64_DEFAULT_SPEC
119
#define ASM_CPU64_DEFAULT_SPEC AS_SPARC64_FLAG "b"
120
#undef ASM_CPU_DEFAULT_SPEC
121
#define ASM_CPU_DEFAULT_SPEC ASM_CPU32_DEFAULT_SPEC
122
#endif
123
 
124
#if TARGET_CPU_DEFAULT == TARGET_CPU_niagara3
125
#undef CPP_CPU64_DEFAULT_SPEC
126
#define CPP_CPU64_DEFAULT_SPEC ""
127
#undef ASM_CPU32_DEFAULT_SPEC
128
#define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plus" AS_NIAGARA3_FLAG
129
#undef ASM_CPU64_DEFAULT_SPEC
130
#define ASM_CPU64_DEFAULT_SPEC AS_SPARC64_FLAG AS_NIAGARA3_FLAG
131
#undef ASM_CPU_DEFAULT_SPEC
132
#define ASM_CPU_DEFAULT_SPEC ASM_CPU32_DEFAULT_SPEC
133
#endif
134
 
135
#if TARGET_CPU_DEFAULT == TARGET_CPU_niagara4
136
#undef CPP_CPU64_DEFAULT_SPEC
137
#define CPP_CPU64_DEFAULT_SPEC ""
138
#undef ASM_CPU32_DEFAULT_SPEC
139
#define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plusb"
140
#undef ASM_CPU64_DEFAULT_SPEC
141
#define ASM_CPU64_DEFAULT_SPEC AS_SPARC64_FLAG "b"
142
#undef ASM_CPU_DEFAULT_SPEC
143
#define ASM_CPU_DEFAULT_SPEC ASM_CPU32_DEFAULT_SPEC
144
#endif
145
 
146
/* Both Sun as and GNU as understand -K PIC.  */
147
#undef ASM_SPEC
148
#define ASM_SPEC ASM_SPEC_BASE ASM_PIC_SPEC
149
 
150
#undef CPP_CPU_SPEC
151
#define CPP_CPU_SPEC "\
152
%{mcpu=sparclet|mcpu=tsc701:-D__sparclet__} \
153
%{mcpu=sparclite|mcpu-f930|mcpu=f934:-D__sparclite__} \
154
%{mcpu=v8:" DEF_ARCH32_SPEC("-D__sparcv8") "} \
155
%{mcpu=supersparc:-D__supersparc__ " DEF_ARCH32_SPEC("-D__sparcv8") "} \
156
%{mcpu=v9|mcpu=ultrasparc|mcpu=ultrasparc3|mcpu=niagara|mcpu=niagara2|mcpu=niagara3|mcpu=niagara4:" DEF_ARCH32_SPEC("-D__sparcv8") "} \
157
%{!mcpu*:%(cpp_cpu_default)} \
158
"
159
 
160
#undef CPP_CPU_DEFAULT_SPEC
161
#define CPP_CPU_DEFAULT_SPEC \
162
(DEFAULT_ARCH32_P ? "\
163
%{m64:" CPP_CPU64_DEFAULT_SPEC "} \
164
%{!m64:" CPP_CPU32_DEFAULT_SPEC "} \
165
" : "\
166
%{m32:" CPP_CPU32_DEFAULT_SPEC "} \
167
%{!m32:" CPP_CPU64_DEFAULT_SPEC "} \
168
")
169
 
170
#undef CPP_ARCH32_SPEC
171
#define CPP_ARCH32_SPEC ""
172
#undef CPP_ARCH64_SPEC
173
#define CPP_ARCH64_SPEC "-D__arch64__ -D__sparcv9"
174
 
175
#undef CPP_ARCH_SPEC
176
#define CPP_ARCH_SPEC "\
177
%{m32:%(cpp_arch32)} \
178
%{m64:%(cpp_arch64)} \
179
%{!m32:%{!m64:%(cpp_arch_default)}} \
180
"
181
 
182
/* -mcpu=native handling only makes sense with compiler running on
183
   a SPARC chip.  */
184
#if defined(__sparc__) && defined(__SVR4)
185
extern const char *host_detect_local_cpu (int argc, const char **argv);
186
# define EXTRA_SPEC_FUNCTIONS                                           \
187
  { "local_cpu_detect", host_detect_local_cpu },
188
 
189
# define MCPU_MTUNE_NATIVE_SPECS                                        \
190
   " %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}"              \
191
   " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}"
192
#else
193
# define MCPU_MTUNE_NATIVE_SPECS ""
194
#endif
195
 
196
#define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS
197
 
198
#undef  CC1_SPEC
199
#if DEFAULT_ARCH32_P
200
#define CC1_SPEC "\
201
%{m64:%{m32:%emay not use both -m32 and -m64}} \
202
%{m64:-mptr64 -mstack-bias -mno-v8plus \
203
  %{!mcpu*:-%{!mv8plus:mcpu=v9}}} \
204
"
205
#else
206
#define CC1_SPEC "\
207
%{m32:%{m64:%emay not use both -m32 and -m64}} \
208
%{m32:-mptr32 -mno-stack-bias \
209
  %{!mcpu*:%{!mv8plus:-mcpu=v9}}} \
210
%{mv8plus:-m32 -mptr32 -mno-stack-bias \
211
  %{!mcpu*:-mcpu=v9}} \
212
"
213
#endif
214
 
215
/* Support for a compile-time default CPU, et cetera.  The rules are:
216
   --with-cpu is ignored if -mcpu is specified.
217
   --with-tune is ignored if -mtune is specified.
218
   --with-float is ignored if -mhard-float, -msoft-float, -mfpu, or -mno-fpu
219
     are specified.
220
   In the SPARC_BI_ARCH compiler we cannot pass %{!mcpu=*:-mcpu=%(VALUE)}
221
   here, otherwise say -mcpu=v7 would be passed even when -m64.
222
   CC1_SPEC above takes care of this instead.  */
223
#undef OPTION_DEFAULT_SPECS
224
#if DEFAULT_ARCH32_P
225
#define OPTION_DEFAULT_SPECS \
226
  {"cpu", "%{!m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
227
  {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
228
  {"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" }
229
#else
230
#define OPTION_DEFAULT_SPECS \
231
  {"cpu", "%{!m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \
232
  {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \
233
  {"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" }
234
#endif
235
 
236
#undef ASM_CPU_SPEC
237
#define ASM_CPU_SPEC "\
238
%{mcpu=v9:" DEF_ARCH32_SPEC("-xarch=v8plus") DEF_ARCH64_SPEC(AS_SPARC64_FLAG) "} \
239
%{mcpu=ultrasparc:" DEF_ARCH32_SPEC("-xarch=v8plusa") DEF_ARCH64_SPEC(AS_SPARC64_FLAG "a") "} \
240
%{mcpu=ultrasparc3:" DEF_ARCH32_SPEC("-xarch=v8plusb") DEF_ARCH64_SPEC(AS_SPARC64_FLAG "b") "} \
241
%{mcpu=niagara:" DEF_ARCH32_SPEC("-xarch=v8plusb") DEF_ARCH64_SPEC(AS_SPARC64_FLAG "b") "} \
242
%{mcpu=niagara2:" DEF_ARCH32_SPEC("-xarch=v8plusb") DEF_ARCH64_SPEC(AS_SPARC64_FLAG "b") "} \
243
%{mcpu=niagara3:" DEF_ARCH32_SPEC("-xarch=v8plus" AS_NIAGARA3_FLAG) DEF_ARCH64_SPEC(AS_SPARC64_FLAG AS_NIAGARA3_FLAG) "} \
244
%{mcpu=niagara4:" DEF_ARCH32_SPEC("-xarch=v8plus" AS_NIAGARA3_FLAG) DEF_ARCH64_SPEC(AS_SPARC64_FLAG AS_NIAGARA3_FLAG) "} \
245
%{!mcpu=niagara4:%{!mcpu=niagara3:%{!mcpu=niagara2:%{!mcpu=niagara:%{!mcpu=ultrasparc3:%{!mcpu=ultrasparc:%{!mcpu=v9:%{mcpu*:" DEF_ARCH32_SPEC("-xarch=v8") DEF_ARCH64_SPEC(AS_SPARC64_FLAG) "}}}}}}}} \
246
%{!mcpu*:%(asm_cpu_default)} \
247
"
248
 
249
#undef ASM_ARCH32_SPEC
250
#define ASM_ARCH32_SPEC ""
251
 
252
#undef ASM_ARCH64_SPEC
253
#define ASM_ARCH64_SPEC ""
254
 
255
#undef ASM_ARCH_DEFAULT_SPEC
256
#define ASM_ARCH_DEFAULT_SPEC ""
257
 
258
#undef ASM_ARCH_SPEC
259
#define ASM_ARCH_SPEC ""
260
 
261
#ifdef USE_GLD
262
/* Since binutils 2.21, GNU ld supports new *_sol2 emulations to strictly
263
   follow the Solaris 2 ABI.  Prefer them if present.  */
264
#ifdef HAVE_LD_SOL2_EMULATION
265
#define ARCH32_EMULATION "elf32_sparc_sol2"
266
#define ARCH64_EMULATION "elf64_sparc_sol2"
267
#else
268
#define ARCH32_EMULATION "elf32_sparc"
269
#define ARCH64_EMULATION "elf64_sparc"
270
#endif
271
#endif
272
 
273
#define ARCH64_SUBDIR "sparcv9"
274
 
275
#define SUBTARGET_CPU_EXTRA_SPECS
276
 
277
 
278
 
279
/* Register the Solaris-specific #pragma directives.  */
280
#define REGISTER_TARGET_PRAGMAS() solaris_register_pragmas ()
281
 
282
#if defined(USE_GAS) && defined(HAVE_AS_TLS)
283
/* Use GNU extensions to TLS support.  */
284
#undef TARGET_SUN_TLS
285
#undef TARGET_GNU_TLS
286
#define TARGET_SUN_TLS 0
287
#define TARGET_GNU_TLS 1
288
#endif
289
 
290
#undef  LOCAL_LABEL_PREFIX
291
#define LOCAL_LABEL_PREFIX  "."
292
 
293
/* The Solaris 2 assembler uses .skip, not .zero, so put this back.  */
294
#undef ASM_OUTPUT_SKIP
295
#define ASM_OUTPUT_SKIP(FILE,SIZE)  \
296
  fprintf (FILE, "\t.skip %u\n", (int)(SIZE))
297
 
298
/* This is how to store into the string LABEL
299
   the symbol_ref name of an internal numbered label where
300
   PREFIX is the class of label and NUM is the number within the class.
301
   This is suitable for output with `assemble_name'.  */
302
 
303
#undef  ASM_GENERATE_INTERNAL_LABEL
304
#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)   \
305
  sprintf ((LABEL), "*.L%s%lu", (PREFIX), (unsigned long)(NUM))
306
 
307
/* The native TLS-enabled assembler requires the directive #tls_object
308
   to be put on objects in TLS sections (as of v7.1).  This is not
309
   required by GNU as but supported on SPARC.  */
310
#undef  ASM_DECLARE_OBJECT_NAME
311
#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)               \
312
  do                                                            \
313
    {                                                           \
314
      HOST_WIDE_INT size;                                       \
315
                                                                \
316
      if (targetm.have_tls && DECL_THREAD_LOCAL_P (DECL))       \
317
        ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "tls_object");   \
318
      else                                                      \
319
        ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object");       \
320
                                                                \
321
      size_directive_output = 0;                                \
322
      if (!flag_inhibit_size_directive                          \
323
          && (DECL) && DECL_SIZE (DECL))                        \
324
        {                                                       \
325
          size_directive_output = 1;                            \
326
          size = int_size_in_bytes (TREE_TYPE (DECL));          \
327
          ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size);         \
328
        }                                                       \
329
                                                                \
330
      ASM_OUTPUT_LABEL (FILE, NAME);                            \
331
    }                                                           \
332
  while (0)
333
 
334
/* Output a simple call for .init/.fini.  */
335
#define ASM_OUTPUT_CALL(FILE, FN)                                       \
336
  do                                                                    \
337
    {                                                                   \
338
      fprintf (FILE, "\tcall\t");                                       \
339
      targetm.asm_out.print_operand (FILE, XEXP (DECL_RTL (FN), 0), 0); \
340
      fprintf (FILE, "\n\tnop\n");                                      \
341
    }                                                                   \
342
  while (0)
343
 
344
#ifndef USE_GAS
345
/* This is how to output an assembler line that says to advance
346
   the location counter to a multiple of 2**LOG bytes using the
347
   NOP instruction as padding.  The filler pattern doesn't work
348
   with GNU as. */
349
#define ASM_OUTPUT_ALIGN_WITH_NOP(FILE,LOG)   \
350
  if ((LOG) != 0)                             \
351
    fprintf (FILE, "\t.align %d,0x1000000\n", (1<<(LOG)))
352
 
353
/* Use Solaris ELF section syntax with Sun as.  */
354
#undef TARGET_ASM_NAMED_SECTION
355
#define TARGET_ASM_NAMED_SECTION sparc_solaris_elf_asm_named_section
356
 
357
/* Sun as requires doublequoted section names on SPARC.  While GNU as
358
   supports that, too, we prefer the standard variant.  */
359
#undef SECTION_NAME_FORMAT
360
#define SECTION_NAME_FORMAT     "\"%s\""
361
#endif /* !USE_GAS */
362
 
363
/* Undefine this so that attribute((init_priority)) works with GNU ld.  */
364
#ifdef USE_GLD
365
#undef CTORS_SECTION_ASM_OP
366
#undef DTORS_SECTION_ASM_OP
367
#endif
368
 
369
 
370
 
371
/* Define for support of TFmode long double.
372
   SPARC ABI says that long double is 4 words.  */
373
#define LONG_DOUBLE_TYPE_SIZE 128
374
 
375
/* Solaris's _Qp_* library routine implementation clobbers the output
376
   memory before the inputs are fully consumed.  */
377
 
378
#undef TARGET_BUGGY_QP_LIB
379
#define TARGET_BUGGY_QP_LIB     1
380
 
381
#undef SUN_CONVERSION_LIBFUNCS
382
#define SUN_CONVERSION_LIBFUNCS 1
383
 
384
#undef DITF_CONVERSION_LIBFUNCS
385
#define DITF_CONVERSION_LIBFUNCS 1
386
 
387
#undef SUN_INTEGER_MULTIPLY_64
388
#define SUN_INTEGER_MULTIPLY_64 1

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