1 /* Definitions of target machine for GCC, for SPARC running Solaris 2 2 Copyright (C) 1992-2016 Free Software Foundation, Inc. 3 Contributed by Ron Guilmette (rfg@netcom.com). 4 Additional changes by David V. Henkel-Wallace (gumby@cygnus.com). 5 6 This file is part of GCC. 7 8 GCC 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 3, or (at your option) 11 any later version. 12 13 GCC 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. 17 18 You should have received a copy of the GNU General Public License 19 along with GCC; see the file COPYING3. If not see 20 <http://www.gnu.org/licenses/>. */ 21 22 /* Solaris allows 64-bit out and global registers to be used in 32-bit mode. 23 sparc_override_options will disable V8+ if either not generating V9 code 24 or generating 64-bit code. */ 25 #undef TARGET_DEFAULT 26 #ifdef TARGET_64BIT_DEFAULT 27 #define TARGET_DEFAULT \ 28 (MASK_V9 + MASK_64BIT + MASK_PTR64 + MASK_STACK_BIAS + \ 29 MASK_V8PLUS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128) 30 #else 31 #define TARGET_DEFAULT \ 32 (MASK_V8PLUS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128) 33 #endif 34 35 /* The default code model used to be CM_MEDANY on Solaris 36 but even Sun eventually found it to be quite wasteful 37 and changed it to CM_MEDMID in the Studio 9 compiler. */ 38 #undef SPARC_DEFAULT_CMODEL 39 #define SPARC_DEFAULT_CMODEL CM_MEDMID 40 41 /* Select a format to encode pointers in exception handling data. CODE 42 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is 43 true if the symbol may be affected by dynamic relocations. 44 45 Some Solaris dynamic linkers don't handle unaligned section relative 46 relocs properly, so force them to be aligned. */ 47 #ifndef HAVE_AS_SPARC_UA_PCREL 48 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ 49 ((flag_pic || GLOBAL) ? DW_EH_PE_aligned : DW_EH_PE_absptr) 50 #endif 51 52 53 54 /* Supposedly the same as vanilla sparc svr4, except for the stuff below: */ 55 56 /* If the assembler supports -xarch=sparc4, we switch to the explicit 57 word size selection mechanism available both in GNU as and Sun as, 58 for the Niagara4 and above configurations. */ 59 #ifdef HAVE_AS_SPARC4 60 61 #define AS_SPARC32_FLAG "" 62 #define AS_SPARC64_FLAG "" 63 64 #ifndef USE_GAS 65 #undef ASM_ARCH32_SPEC 66 #define ASM_ARCH32_SPEC "-m32" 67 #undef ASM_ARCH64_SPEC 68 #define ASM_ARCH64_SPEC "-m64" 69 #endif 70 71 /* Both Sun as and GNU as understand -K PIC. */ 72 #undef ASM_SPEC 73 #define ASM_SPEC ASM_SPEC_BASE " %(asm_arch)" ASM_PIC_SPEC 74 75 #else /* HAVE_AS_SPARC4 */ 76 77 #define AS_SPARC32_FLAG "-xarch=v8plus" 78 #define AS_SPARC64_FLAG "-xarch=v9" 79 80 #undef AS_NIAGARA4_FLAG 81 #define AS_NIAGARA4_FLAG AS_NIAGARA3_FLAG 82 83 #undef ASM_ARCH32_SPEC 84 #define ASM_ARCH32_SPEC "" 85 86 #undef ASM_ARCH64_SPEC 87 #define ASM_ARCH64_SPEC "" 88 89 #undef ASM_ARCH_DEFAULT_SPEC 90 #define ASM_ARCH_DEFAULT_SPEC "" 91 92 #undef ASM_ARCH_SPEC 93 #define ASM_ARCH_SPEC "" 94 95 /* Both Sun as and GNU as understand -K PIC. */ 96 #undef ASM_SPEC 97 #define ASM_SPEC ASM_SPEC_BASE ASM_PIC_SPEC 98 99 #endif /* HAVE_AS_SPARC4 */ 100 101 102 #undef ASM_CPU32_DEFAULT_SPEC 103 #define ASM_CPU32_DEFAULT_SPEC "" 104 #undef ASM_CPU64_DEFAULT_SPEC 105 #define ASM_CPU64_DEFAULT_SPEC "-xarch=v9" 106 107 #if TARGET_CPU_DEFAULT == TARGET_CPU_v9 108 #undef CPP_CPU64_DEFAULT_SPEC 109 #define CPP_CPU64_DEFAULT_SPEC "" 110 #undef ASM_CPU32_DEFAULT_SPEC 111 #define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plus" 112 #endif 113 114 #if TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc 115 #undef CPP_CPU64_DEFAULT_SPEC 116 #define CPP_CPU64_DEFAULT_SPEC "" 117 #undef ASM_CPU32_DEFAULT_SPEC 118 #define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plusa" 119 #undef ASM_CPU64_DEFAULT_SPEC 120 #define ASM_CPU64_DEFAULT_SPEC "-xarch=v9a" 121 #endif 122 123 #if TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc3 124 #undef CPP_CPU64_DEFAULT_SPEC 125 #define CPP_CPU64_DEFAULT_SPEC "" 126 #undef ASM_CPU32_DEFAULT_SPEC 127 #define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plusb" 128 #undef ASM_CPU64_DEFAULT_SPEC 129 #define ASM_CPU64_DEFAULT_SPEC "-xarch=v9b" 130 #endif 131 132 #if TARGET_CPU_DEFAULT == TARGET_CPU_niagara 133 #undef CPP_CPU64_DEFAULT_SPEC 134 #define CPP_CPU64_DEFAULT_SPEC "" 135 #undef ASM_CPU32_DEFAULT_SPEC 136 #define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plusb" 137 #undef ASM_CPU64_DEFAULT_SPEC 138 #define ASM_CPU64_DEFAULT_SPEC "-xarch=v9b" 139 #endif 140 141 #if TARGET_CPU_DEFAULT == TARGET_CPU_niagara2 142 #undef CPP_CPU64_DEFAULT_SPEC 143 #define CPP_CPU64_DEFAULT_SPEC "" 144 #undef ASM_CPU32_DEFAULT_SPEC 145 #define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plusb" 146 #undef ASM_CPU64_DEFAULT_SPEC 147 #define ASM_CPU64_DEFAULT_SPEC "-xarch=v9b" 148 #endif 149 150 #if TARGET_CPU_DEFAULT == TARGET_CPU_niagara3 151 #undef CPP_CPU64_DEFAULT_SPEC 152 #define CPP_CPU64_DEFAULT_SPEC "" 153 #undef ASM_CPU32_DEFAULT_SPEC 154 #define ASM_CPU32_DEFAULT_SPEC "-xarch=v8plus" AS_NIAGARA3_FLAG 155 #undef ASM_CPU64_DEFAULT_SPEC 156 #define ASM_CPU64_DEFAULT_SPEC "-xarch=v9" AS_NIAGARA3_FLAG 157 #endif 158 159 #if TARGET_CPU_DEFAULT == TARGET_CPU_niagara4 160 #undef CPP_CPU64_DEFAULT_SPEC 161 #define CPP_CPU64_DEFAULT_SPEC "" 162 #undef ASM_CPU32_DEFAULT_SPEC 163 #define ASM_CPU32_DEFAULT_SPEC AS_SPARC32_FLAG AS_NIAGARA4_FLAG 164 #undef ASM_CPU64_DEFAULT_SPEC 165 #define ASM_CPU64_DEFAULT_SPEC AS_SPARC64_FLAG AS_NIAGARA4_FLAG 166 #endif 167 168 #if TARGET_CPU_DEFAULT == TARGET_CPU_niagara7 169 #undef CPP_CPU64_DEFAULT_SPEC 170 #define CPP_CPU64_DEFAULT_SPEC "" 171 #undef ASM_CPU32_DEFAULT_SPEC 172 #define ASM_CPU32_DEFAULT_SPEC AS_SPARC32_FLAG AS_NIAGARA7_FLAG 173 #undef ASM_CPU64_DEFAULT_SPEC 174 #define ASM_CPU64_DEFAULT_SPEC AS_SPARC64_FLAG AS_NIAGARA7_FLAG 175 #endif 176 177 #undef CPP_CPU_SPEC 178 #define CPP_CPU_SPEC "\ 179 %{mcpu=sparclet|mcpu=tsc701:-D__sparclet__} \ 180 %{mcpu=sparclite|mcpu-f930|mcpu=f934:-D__sparclite__} \ 181 %{mcpu=v8:" DEF_ARCH32_SPEC("-D__sparcv8") "} \ 182 %{mcpu=supersparc:-D__supersparc__ " DEF_ARCH32_SPEC("-D__sparcv8") "} \ 183 %{mcpu=v9|mcpu=ultrasparc|mcpu=ultrasparc3|mcpu=niagara|mcpu=niagara2|mcpu=niagara3|mcpu=niagara4|mcpu=niagara7:" DEF_ARCH32_SPEC("-D__sparcv8") "} \ 184 %{!mcpu*:%(cpp_cpu_default)} \ 185 " 186 187 #undef CPP_CPU_DEFAULT_SPEC 188 #define CPP_CPU_DEFAULT_SPEC \ 189 (DEFAULT_ARCH32_P ? "\ 190 %{m64:" CPP_CPU64_DEFAULT_SPEC "} \ 191 %{!m64:" CPP_CPU32_DEFAULT_SPEC "} \ 192 " : "\ 193 %{m32:" CPP_CPU32_DEFAULT_SPEC "} \ 194 %{!m32:" CPP_CPU64_DEFAULT_SPEC "} \ 195 ") 196 197 #undef CPP_ARCH32_SPEC 198 #define CPP_ARCH32_SPEC "" 199 #undef CPP_ARCH64_SPEC 200 #define CPP_ARCH64_SPEC "-D__arch64__ -D__sparcv9" 201 202 #undef CPP_ARCH_SPEC 203 #define CPP_ARCH_SPEC "\ 204 %{m32:%(cpp_arch32)} \ 205 %{m64:%(cpp_arch64)} \ 206 %{!m32:%{!m64:%(cpp_arch_default)}} \ 207 " 208 209 /* -mcpu=native handling only makes sense with compiler running on 210 a SPARC chip. */ 211 #if defined(__sparc__) && defined(__SVR4) 212 extern const char *host_detect_local_cpu (int argc, const char **argv); 213 # define EXTRA_SPEC_FUNCTIONS \ 214 { "local_cpu_detect", host_detect_local_cpu }, 215 216 # define MCPU_MTUNE_NATIVE_SPECS \ 217 " %{mcpu=native:%<mcpu=native %:local_cpu_detect(cpu)}" \ 218 " %{mtune=native:%<mtune=native %:local_cpu_detect(tune)}" 219 #else 220 # define MCPU_MTUNE_NATIVE_SPECS "" 221 #endif 222 223 #define DRIVER_SELF_SPECS MCPU_MTUNE_NATIVE_SPECS 224 225 #undef CC1_SPEC 226 #if DEFAULT_ARCH32_P 227 #define CC1_SPEC "\ 228 %{m64:%{m32:%emay not use both -m32 and -m64}} \ 229 %{m64:-mptr64 -mstack-bias -mno-v8plus \ 230 %{!mcpu*:-%{!mv8plus:mcpu=v9}}} \ 231 " 232 #else 233 #define CC1_SPEC "\ 234 %{m32:%{m64:%emay not use both -m32 and -m64}} \ 235 %{m32:-mptr32 -mno-stack-bias \ 236 %{!mcpu*:%{!mv8plus:-mcpu=v9}}} \ 237 %{mv8plus:-m32 -mptr32 -mno-stack-bias \ 238 %{!mcpu*:-mcpu=v9}} \ 239 " 240 #endif 241 242 /* Support for a compile-time default CPU, et cetera. The rules are: 243 --with-cpu is ignored if -mcpu is specified; likewise --with-cpu-32 244 and --with-cpu-64. 245 --with-tune is ignored if -mtune is specified; likewise --with-tune-32 246 and --with-tune-64. 247 --with-float is ignored if -mhard-float, -msoft-float, -mfpu, or -mno-fpu 248 are specified. 249 In the SPARC_BI_ARCH compiler we cannot pass %{!mcpu=*:-mcpu=%(VALUE)} 250 here, otherwise say -mcpu=v7 would be passed even when -m64. 251 CC1_SPEC above takes care of this instead. 252 253 Note that the order of the cpu* and tune* options matters: the 254 config.gcc file always sets with_cpu to some value, even if the 255 user didn't use --with-cpu when invoking the configure script. 256 This value is based on the target name. Therefore we have to make 257 sure that --with-cpu-32 takes precedence to --with-cpu in < v9 258 systems, and that --with-cpu-64 takes precedence to --with-cpu in 259 >= v9 systems. As for the tune* options, in some platforms 260 config.gcc also sets a default value for it if the user didn't use 261 --with-tune when invoking the configure script. */ 262 #undef OPTION_DEFAULT_SPECS 263 #if DEFAULT_ARCH32_P 264 #define OPTION_DEFAULT_SPECS \ 265 {"cpu_32", "%{!m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \ 266 {"cpu_64", "%{m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \ 267 {"cpu", "%{!m64:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \ 268 {"tune_32", "%{!m64:%{!mtune=*:-mtune=%(VALUE)}}" }, \ 269 {"tune_64", "%{m64:%{!mtune=*:-mtune=%(VALUE)}}" }, \ 270 {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \ 271 {"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" } 272 #else 273 #define OPTION_DEFAULT_SPECS \ 274 {"cpu_32", "%{m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \ 275 {"cpu_64", "%{!m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \ 276 {"cpu", "%{!m32:%{!mcpu=*:-mcpu=%(VALUE)}}" }, \ 277 {"tune_32", "%{m32:%{!mtune=*:-mtune=%(VALUE)}}" }, \ 278 {"tune_64", "%{!m32:%{!mtune=*:-mtune=%(VALUE)}}" }, \ 279 {"tune", "%{!mtune=*:-mtune=%(VALUE)}" }, \ 280 {"float", "%{!msoft-float:%{!mhard-float:%{!mfpu:%{!mno-fpu:-m%(VALUE)-float}}}}" } 281 #endif 282 283 #undef ASM_CPU_SPEC 284 #define ASM_CPU_SPEC "\ 285 %{mcpu=v9:" DEF_ARCH32_SPEC("-xarch=v8plus") DEF_ARCH64_SPEC("-xarch=v9") "} \ 286 %{mcpu=ultrasparc:" DEF_ARCH32_SPEC("-xarch=v8plusa") DEF_ARCH64_SPEC("-xarch=v9a") "} \ 287 %{mcpu=ultrasparc3:" DEF_ARCH32_SPEC("-xarch=v8plusb") DEF_ARCH64_SPEC("-xarch=v9b") "} \ 288 %{mcpu=niagara:" DEF_ARCH32_SPEC("-xarch=v8plusb") DEF_ARCH64_SPEC("-xarch=v9b") "} \ 289 %{mcpu=niagara2:" DEF_ARCH32_SPEC("-xarch=v8plusb") DEF_ARCH64_SPEC("-xarch=v9b") "} \ 290 %{mcpu=niagara3:" DEF_ARCH32_SPEC("-xarch=v8plus" AS_NIAGARA3_FLAG) DEF_ARCH64_SPEC("-xarch=v9" AS_NIAGARA3_FLAG) "} \ 291 %{mcpu=niagara4:" DEF_ARCH32_SPEC(AS_SPARC32_FLAG AS_NIAGARA4_FLAG) DEF_ARCH64_SPEC(AS_SPARC64_FLAG AS_NIAGARA4_FLAG) "} \ 292 %{mcpu=niagara7:" DEF_ARCH32_SPEC(AS_SPARC32_FLAG AS_NIAGARA7_FLAG) DEF_ARCH64_SPEC(AS_SPARC64_FLAG AS_NIAGARA7_FLAG) "} \ 293 %{!mcpu=niagara7:%{!mcpu=niagara4:%{!mcpu=niagara3:%{!mcpu=niagara2:%{!mcpu=niagara:%{!mcpu=ultrasparc3:%{!mcpu=ultrasparc:%{!mcpu=v9:%{mcpu*:" DEF_ARCH32_SPEC("-xarch=v8") DEF_ARCH64_SPEC("-xarch=v9") "}}}}}}}}} \ 294 %{!mcpu*:%(asm_cpu_default)} \ 295 " 296 297 #ifdef USE_GLD 298 /* Since binutils 2.21, GNU ld supports new *_sol2 emulations to strictly 299 follow the Solaris 2 ABI. Prefer them if present. */ 300 #ifdef HAVE_LD_SOL2_EMULATION 301 #define ARCH32_EMULATION "elf32_sparc_sol2" 302 #define ARCH64_EMULATION "elf64_sparc_sol2" 303 #else 304 #define ARCH32_EMULATION "elf32_sparc" 305 #define ARCH64_EMULATION "elf64_sparc" 306 #endif 307 #endif 308 309 #define ARCH64_SUBDIR "sparcv9" 310 311 #define SUBTARGET_CPU_EXTRA_SPECS 312 313 #define ENDFILE_ARCH_SPEC "" 314 315 316 317 /* Register the Solaris-specific #pragma directives. */ 318 #define REGISTER_TARGET_PRAGMAS() solaris_register_pragmas () 319 320 #if defined(USE_GAS) && defined(HAVE_AS_TLS) 321 /* Use GNU extensions to TLS support. */ 322 #undef TARGET_SUN_TLS 323 #undef TARGET_GNU_TLS 324 #define TARGET_SUN_TLS 0 325 #define TARGET_GNU_TLS 1 326 #endif 327 328 #undef LOCAL_LABEL_PREFIX 329 #define LOCAL_LABEL_PREFIX "." 330 331 /* The Solaris 2 assembler uses .skip, not .zero, so put this back. */ 332 #undef ASM_OUTPUT_SKIP 333 #define ASM_OUTPUT_SKIP(FILE,SIZE) \ 334 fprintf (FILE, "\t.skip %u\n", (int)(SIZE)) 335 336 /* This is how to store into the string LABEL 337 the symbol_ref name of an internal numbered label where 338 PREFIX is the class of label and NUM is the number within the class. 339 This is suitable for output with `assemble_name'. */ 340 341 #undef ASM_GENERATE_INTERNAL_LABEL 342 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ 343 sprintf ((LABEL), "*.L%s%lu", (PREFIX), (unsigned long)(NUM)) 344 345 /* The native TLS-enabled assembler requires the directive #tls_object 346 to be put on objects in TLS sections (as of v7.1). This is not 347 required by GNU as but supported on SPARC. */ 348 #undef ASM_DECLARE_OBJECT_NAME 349 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ 350 do \ 351 { \ 352 HOST_WIDE_INT size; \ 353 \ 354 if (targetm.have_tls && DECL_THREAD_LOCAL_P (DECL)) \ 355 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "tls_object"); \ 356 else \ 357 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \ 358 \ 359 size_directive_output = 0; \ 360 if (!flag_inhibit_size_directive \ 361 && (DECL) && DECL_SIZE (DECL)) \ 362 { \ 363 size_directive_output = 1; \ 364 size = int_size_in_bytes (TREE_TYPE (DECL)); \ 365 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \ 366 } \ 367 \ 368 ASM_OUTPUT_LABEL (FILE, NAME); \ 369 } \ 370 while (0) 371 372 /* Output a simple call for .init/.fini. */ 373 #define ASM_OUTPUT_CALL(FILE, FN) \ 374 do \ 375 { \ 376 fprintf (FILE, "\tcall\t"); \ 377 targetm.asm_out.print_operand (FILE, XEXP (DECL_RTL (FN), 0), 0); \ 378 fprintf (FILE, "\n\tnop\n"); \ 379 } \ 380 while (0) 381 382 /* Solaris as has a bug: a .common directive in .tbss or .tdata section 383 behaves as .tls_common rather than normal non-TLS .common. */ 384 #undef ASM_OUTPUT_ALIGNED_COMMON 385 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ 386 do \ 387 { \ 388 if (TARGET_SUN_TLS \ 389 && in_section \ 390 && ((in_section->common.flags & SECTION_TLS) == SECTION_TLS)) \ 391 switch_to_section (bss_section); \ 392 fprintf ((FILE), "%s", COMMON_ASM_OP); \ 393 assemble_name ((FILE), (NAME)); \ 394 fprintf ((FILE), "," HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \ 395 (SIZE), (ALIGN) / BITS_PER_UNIT); \ 396 } \ 397 while (0) 398 399 #ifndef USE_GAS 400 /* This is how to output an assembler line that says to advance 401 the location counter to a multiple of 2**LOG bytes using the 402 NOP instruction as padding. The filler pattern doesn't work 403 with GNU as. */ 404 #define ASM_OUTPUT_ALIGN_WITH_NOP(FILE,LOG) \ 405 if ((LOG) != 0) \ 406 fprintf (FILE, "\t.align %d,0x1000000\n", (1<<(LOG))) 407 408 /* Use Solaris ELF section syntax with Sun as. */ 409 #undef TARGET_ASM_NAMED_SECTION 410 #define TARGET_ASM_NAMED_SECTION sparc_solaris_elf_asm_named_section 411 412 /* Sun as requires doublequoted section names on SPARC. While GNU as 413 supports that, too, we prefer the standard variant. */ 414 #define SECTION_NAME_FORMAT "\"%s\"" 415 #endif /* !USE_GAS */ 416 417 /* Undefine this so that attribute((init_priority)) works with GNU ld. */ 418 #ifdef USE_GLD 419 #undef CTORS_SECTION_ASM_OP 420 #undef DTORS_SECTION_ASM_OP 421 #endif 422 423 424 425 /* Define for support of TFmode long double. 426 SPARC ABI says that long double is 4 words. */ 427 #define LONG_DOUBLE_TYPE_SIZE 128 428 429 /* Solaris's _Qp_* library routine implementation clobbers the output 430 memory before the inputs are fully consumed. */ 431 432 #undef TARGET_BUGGY_QP_LIB 433 #define TARGET_BUGGY_QP_LIB 1 434 435 #undef SUN_CONVERSION_LIBFUNCS 436 #define SUN_CONVERSION_LIBFUNCS 1 437 438 #undef DITF_CONVERSION_LIBFUNCS 439 #define DITF_CONVERSION_LIBFUNCS 1 440 441 #undef SUN_INTEGER_MULTIPLY_64 442 #define SUN_INTEGER_MULTIPLY_64 1 443 444 #undef SPARC_LOW_FE_EXCEPT_VALUES 445 #define SPARC_LOW_FE_EXCEPT_VALUES 1 446