gcc/config/sparc/netbsd-elf.h

   1 /* Definitions of target machine for GNU compiler, for ELF on NetBSD/sparc
   2    and NetBSD/sparc64.
   3    Copyright (C) 2002 Free Software Foundation, Inc.
   4    Contributed by Matthew Green (mrg@eterna.com.au).
   5
   6 This file is part of GNU CC.
   7
   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)
  11 any later version.
  12
  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.
  17
  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.  */
  22
  23 /* Make sure these are undefined.  */
  24 #undef MD_EXEC_PREFIX
  25 #undef MD_STARTFILE_PREFIX
  26
  27 #undef CPP_PREDEFINES
  28 #define CPP_PREDEFINES "-D__sparc__ -D__NetBSD__ -D__ELF__ \
  29 -Asystem=unix -Asystem=NetBSD"
  30
  31 /* CPP defines used for 64 bit code.  */
  32 #undef CPP_SUBTARGET_SPEC64
  33 #define CPP_SUBTARGET_SPEC64 \
  34   "-D__sparc64__ -D__sparc_v9__ -D_LP64 %{posix:-D_POSIX_SOURCE}"
  35
  36 /* CPP defines used for 32 bit code.  */
  37 #undef CPP_SUBTARGET_SPEC32
  38 #define CPP_SUBTARGET_SPEC32 "-D__sparc %{posix:-D_POSIX_SOURCE}"
  39
  40 /* CPP_ARCH32_SPEC and CPP_ARCH64_SPEC are wrong from sparc/sparc.h; we
  41    always want the non-SPARC_BI_ARCH versions, since the SPARC_BI_ARCH
  42    versions define __SIZE_TYPE__ and __PTRDIFF_TYPE__ incorrectly for
  43    NetBSD.  */
  44 #undef CPP_ARCH32_SPEC
  45 #define CPP_ARCH32_SPEC "-D__GCC_NEW_VARARGS__ -Acpu=sparc -Amachine=sparc"
  46
  47 #undef CPP_ARCH64_SPEC
  48 #define CPP_ARCH64_SPEC "-D__arch64__ -Acpu=sparc64 -Amachine=sparc64"
  49
  50 /* sparc/sparc.h defines NO_BUILTIN_SIZE_TYPE and NO_BUILTIN_PTRDIFF_TYPE
  51    if SPARC_BI_ARCH is defined.  This is wrong for NetBSD; size_t and
  52    ptrdiff_t do not change for 32-bit vs. 64-bit.  */
  53 #undef NO_BUILTIN_PTRDIFF_TYPE
  54 #undef NO_BUILTIN_SIZE_TYPE
  55
  56 /* SIZE_TYPE and PTRDIFF_TYPE are wrong from sparc/sparc.h.  */
  57 #undef SIZE_TYPE
  58 #define SIZE_TYPE "long unsigned int"
  59
  60 #undef PTRDIFF_TYPE
  61 #define PTRDIFF_TYPE "long int"
  62
  63 #undef PREFERRED_DEBUGGING_TYPE
  64 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
  65
  66 /* This is the char to use for continuation (in case we need to turn
  67    continuation back on).  */
  68 #undef DBX_CONTIN_CHAR
  69 #define DBX_CONTIN_CHAR '?'
  70
  71 #undef DBX_REGISTER_NUMBER
  72 #define DBX_REGISTER_NUMBER(REGNO) \
  73   (TARGET_FLAT && REGNO == HARD_FRAME_POINTER_REGNUM ? 31 : REGNO)
  74
  75 #undef  LOCAL_LABEL_PREFIX
  76 #define LOCAL_LABEL_PREFIX  "."
  77
  78 /* This is how to output a definition of an internal numbered label where
  79    PREFIX is the class of label and NUM is the number within the class.  */
  80
  81 #undef  ASM_OUTPUT_INTERNAL_LABEL
  82 #define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)      \
  83   fprintf (FILE, ".L%s%d:\n", PREFIX, NUM)
  84
  85 /* This is how to output a reference to an internal numbered label where
  86    PREFIX is the class of label and NUM is the number within the class.  */
  87
  88 #undef  ASM_OUTPUT_INTERNAL_LABELREF
  89 #define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM)   \
  90   fprintf (FILE, ".L%s%d", PREFIX, NUM)
  91
  92 /* This is how to store into the string LABEL
  93    the symbol_ref name of an internal numbered label where
  94    PREFIX is the class of label and NUM is the number within the class.
  95    This is suitable for output with `assemble_name'.  */
  96
  97 #undef  ASM_GENERATE_INTERNAL_LABEL
  98 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)   \
  99   sprintf ((LABEL), "*.L%s%ld", (PREFIX), (long)(NUM))
 100
 101 #undef USER_LABEL_PREFIX
 102 #define USER_LABEL_PREFIX ""
 103
 104 #undef ASM_SPEC
 105 #define ASM_SPEC "%{fpic:-K PIC} %{fPIC:-K PIC} %{V} %{v:%{!V:-V}} \
 106 %{mlittle-endian:-EL} \
 107 %(asm_cpu) %(asm_arch) %(asm_relax)"
 108
 109 #undef STDC_0_IN_SYSTEM_HEADERS
 110
 111 #undef TARGET_VERSION
 112 #define TARGET_VERSION fprintf (stderr, " (%s)", TARGET_NAME);
 113
 114 /*
 115  * Clean up afterwards generic SPARC ELF configuration.
 116  */
 117
 118 #undef TRANSFER_FROM_TRAMPOLINE
 119 #define TRANSFER_FROM_TRAMPOLINE
 120
 121 /* FIXME: Aren't these supposed to be available for SPARC ELF?  */
 122 #undef MULDI3_LIBCALL
 123 #undef DIVDI3_LIBCALL
 124 #undef UDIVDI3_LIBCALL
 125 #undef MODDI3_LIBCALL
 126 #undef UMODDI3_LIBCALL
 127 #undef INIT_SUBTARGET_OPTABS
 128 #define INIT_SUBTARGET_OPTABS
 129
 130 /* Below here exists the merged NetBSD/sparc & NetBSD/sparc64 compiler
 131    description, allowing one to build 32 bit or 64 bit applications
 132    on either.  We define the sparc & sparc64 versions of things,
 133    occasionally a neutral version (should be the same as "netbsd-elf.h")
 134    and then based on SPARC_BI_ARCH, DEFAULT_ARCH32_P, and TARGET_CPU_DEFAULT,
 135    we choose the correct version.  */
 136
 137 /* We use the default NetBSD ELF STARTFILE_SPEC and ENDFILE_SPEC
 138    definitions, even for the SPARC_BI_ARCH compiler, because NetBSD does
 139    not have a default place to find these libraries..  */
 140
 141 /* Name the port(s).  */
 142 #define TARGET_NAME64     "NetBSD/sparc64 ELF"
 143 #define TARGET_NAME32     "NetBSD/sparc ELF"
 144
 145 /* TARGET_CPU_DEFAULT is set in Makefile.in.  We test for 64-bit default
 146    platform here.  */
 147
 148 #if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
 149  || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
 150 /* A 64 bit v9 compiler with stack-bias,
 151    in a Medium/Low code model environment.  */
 152
 153 #undef TARGET_DEFAULT
 154 #define TARGET_DEFAULT \
 155   (MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \
 156    + MASK_STACK_BIAS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128)
 157
 158 #undef SPARC_DEFAULT_CMODEL
 159 #define SPARC_DEFAULT_CMODEL CM_MEDANY
 160
 161 #endif
 162
 163 /* CC1_SPEC for NetBSD/sparc.  */
 164 #define CC1_SPEC32 \
 165  "%{sun4:} %{target:} \
 166   %{mcypress:-mcpu=cypress} \
 167   %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
 168   %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
 169   %{m32:%{m64:%emay not use both -m32 and -m64}} \
 170   %{m64: \
 171     -mptr64 -mstack-bias -mno-v8plus -mlong-double-128 \
 172     %{!mcpu*: \
 173       %{!mcypress: \
 174         %{!msparclite: \
 175           %{!mf930: \
 176             %{!mf934: \
 177               %{!mv8*: \
 178                 %{!msupersparc:-mcpu=ultrasparc}}}}}}} \
 179     %{!mno-vis:%{!mcpu=v9:-mvis}} \
 180     %{p:-mcmodel=medlow} \
 181     %{pg:-mcmodel=medlow}}"
 182
 183 #define CC1_SPEC64 \
 184  "%{sun4:} %{target:} \
 185   %{mcypress:-mcpu=cypress} \
 186   %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
 187   %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
 188   %{m32:%{m64:%emay not use both -m32 and -m64}} \
 189   %{m32: \
 190     -mptr32 -mno-stack-bias \
 191     %{!mlong-double-128:-mlong-double-64} \
 192     %{!mcpu*: \
 193       %{!mcypress: \
 194         %{!msparclite: \
 195           %{!mf930: \
 196             %{!mf934: \
 197               %{!mv8*: \
 198                 %{!msupersparc:-mcpu=cypress}}}}}}}} \
 199   %{!m32: \
 200     %{p:-mcmodel=medlow} \
 201     %{pg:-mcmodel=medlow}}"
 202
 203 /* Make sure we use the right output format.  Pick a default and then
 204    make sure -m32/-m64 switch to the right one.  */
 205
 206 #define LINK_ARCH32_SPEC \
 207  "%-m elf32_sparc \
 208   %{assert*} %{R*} %{V} %{v:%{!V:-V}} \
 209   %{shared:-shared} \
 210   %{!shared: \
 211     -dp \
 212     %{!nostdlib:%{!r*:%{!e*:-e __start}}} \
 213     %{!static: \
 214       -dy %{rdynamic:-export-dynamic} \
 215       %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}} \
 216     %{static:-static}}"
 217
 218 #define LINK_ARCH64_SPEC \
 219  "%-m elf64_sparc \
 220   %{assert*} %{R*} %{V} %{v:%{!V:-V}} \
 221   %{shared:-shared} \
 222   %{!shared: \
 223     -dp \
 224     %{!nostdlib:%{!r*:%{!e*:-e __start}}} \
 225     %{!static: \
 226       -dy %{rdynamic:-export-dynamic} \
 227       %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}} \
 228     %{static:-static}}"
 229
 230 #define LINK_ARCH_SPEC "\
 231 %{m32:%(link_arch32)} \
 232 %{m64:%(link_arch64)} \
 233 %{!m32:%{!m64:%(link_arch_default)}} \
 234 "
 235
 236 #if DEFAULT_ARCH32_P
 237 #define LINK_ARCH_DEFAULT_SPEC LINK_ARCH32_SPEC
 238 #else
 239 #define LINK_ARCH_DEFAULT_SPEC LINK_ARCH64_SPEC
 240 #endif
 241
 242 /* What extra spec entries do we need?  */
 243 #undef SUBTARGET_EXTRA_SPECS
 244 #define SUBTARGET_EXTRA_SPECS \
 245   { "link_arch32",              LINK_ARCH32_SPEC }, \
 246   { "link_arch64",              LINK_ARCH64_SPEC }, \
 247   { "link_arch_default",        LINK_ARCH_DEFAULT_SPEC }, \
 248   { "link_arch",                LINK_ARCH_SPEC }, \
 249   { "cpp_subtarget_spec32",     CPP_SUBTARGET_SPEC32 }, \
 250   { "cpp_subtarget_spec64",     CPP_SUBTARGET_SPEC64 },
 251
 252
 253 /* What extra switches do we need?  */
 254 #undef  SUBTARGET_SWITCHES
 255 #define SUBTARGET_SWITCHES \
 256   {"long-double-64", -MASK_LONG_DOUBLE_128, N_("Use 64 bit long doubles") }, \
 257   {"long-double-128", MASK_LONG_DOUBLE_128, N_("Use 128 bit long doubles") },
 258
 259
 260 /* Build a compiler that supports -m32 and -m64?  */
 261
 262 #ifdef SPARC_BI_ARCH
 263
 264 #undef LONG_DOUBLE_TYPE_SIZE
 265 #define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
 266
 267 #undef MAX_LONG_DOUBLE_TYPE_SIZE
 268 #define MAX_LONG_DOUBLE_TYPE_SIZE 128
 269
 270 #if defined(__arch64__) || defined(__LONG_DOUBLE_128__)
 271 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
 272 #else
 273 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
 274 #endif
 275
 276 #undef  CC1_SPEC
 277 #if DEFAULT_ARCH32_P
 278 #define CC1_SPEC CC1_SPEC32
 279 #else
 280 #define CC1_SPEC CC1_SPEC64
 281 #endif
 282
 283 #if DEFAULT_ARCH32_P
 284 #define MULTILIB_DEFAULTS { "m32" }
 285 #else
 286 #define MULTILIB_DEFAULTS { "m64" }
 287 #endif
 288
 289 #undef CPP_SUBTARGET_SPEC
 290 #if DEFAULT_ARCH32_P
 291 #define CPP_SUBTARGET_SPEC \
 292   "%{m64:%(cpp_subtarget_spec64)}%{!m64:%(cpp_subtarget_spec32)}"
 293 #else
 294 #define CPP_SUBTARGET_SPEC \
 295   "%{!m32:%(cpp_subtarget_spec64)}%{m32:%(cpp_subtarget_spec32)}"
 296 #endif
 297
 298 /* Restore this from sparc/sparc.h, netbsd.h changes it.  */
 299 #undef CPP_SPEC
 300 #define CPP_SPEC "%(cpp_cpu) %(cpp_arch) %(cpp_endian) %(cpp_subtarget)"
 301
 302 /* Name the port. */
 303 #undef TARGET_NAME
 304 #define TARGET_NAME     (DEFAULT_ARCH32_P ? TARGET_NAME32 : TARGET_NAME64)
 305
 306 #else   /* SPARC_BI_ARCH */
 307
 308 #if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
 309  || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
 310
 311 #undef LONG_DOUBLE_TYPE_SIZE
 312 #define LONG_DOUBLE_TYPE_SIZE 128
 313
 314 #undef MAX_LONG_DOUBLE_TYPE_SIZE
 315 #define MAX_LONG_DOUBLE_TYPE_SIZE 128
 316
 317 #undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
 318 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
 319
 320 #undef  CC1_SPEC
 321 #define CC1_SPEC CC1_SPEC64
 322
 323 #undef CPP_SUBTARGET_SPEC
 324 #define CPP_SUBTARGET_SPEC CPP_SUBTARGET_SPEC64
 325
 326 #undef TARGET_NAME
 327 #define TARGET_NAME     TARGET_NAME64
 328
 329 #else   /* TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
 330         || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc */
 331
 332 /* A 32-bit only compiler.  NetBSD don't support 128 bit `long double'
 333    for 32-bit code, unlike Solaris.  */
 334
 335 #undef LONG_DOUBLE_TYPE_SIZE
 336 #define LONG_DOUBLE_TYPE_SIZE 64
 337
 338 #undef MAX_LONG_DOUBLE_TYPE_SIZE
 339 #define MAX_LONG_DOUBLE_TYPE_SIZE 64
 340
 341 #undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
 342 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
 343
 344 #undef CPP_SUBTARGET_SPEC
 345 #define CPP_SUBTARGET_SPEC CPP_SUBTARGET_SPEC32
 346
 347 #undef  CC1_SPEC
 348 #define CC1_SPEC CC1_SPEC32
 349
 350 #undef TARGET_NAME
 351 #define TARGET_NAME     TARGET_NAME32
 352
 353 #endif  /* TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
 354         || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc */
 355
 356 #endif  /* SPARC_BI_ARCH */
 357
 358 /* We use GNU ld so undefine this so that attribute((init_priority)) works.  */
 359 #undef CTORS_SECTION_ASM_OP
 360 #undef DTORS_SECTION_ASM_OP